[FFmpeg-cvslog] r21168 - in trunk/libavcodec: Makefile h264.c h264.h h264_sei.c h264data.h
michael
subversion
Tue Jan 12 19:54:40 CET 2010
Author: michael
Date: Tue Jan 12 19:54:40 2010
New Revision: 21168
Log:
Split SEI code off h264.c.
Added:
trunk/libavcodec/h264_sei.c
- copied, changed from r21165, trunk/libavcodec/h264.c
Modified:
trunk/libavcodec/Makefile
trunk/libavcodec/h264.c
trunk/libavcodec/h264.h
trunk/libavcodec/h264data.h
Modified: trunk/libavcodec/Makefile
==============================================================================
--- trunk/libavcodec/Makefile Tue Jan 12 17:36:23 2010 (r21167)
+++ trunk/libavcodec/Makefile Tue Jan 12 19:54:40 2010 (r21168)
@@ -132,6 +132,7 @@ OBJS-$(CONFIG_H263_ENCODER) +
ratecontrol.o h263.o ituh263enc.o flvenc.o mpeg12data.o \
mpegvideo.o error_resilience.o
OBJS-$(CONFIG_H264_DECODER) += h264.o h264idct.o h264pred.o h264_loopfilter.o h264_direct.o cabac.o \
+ h264_sei.o \
mpegvideo.o error_resilience.o
OBJS-$(CONFIG_H264_ENCODER) += h264enc.o h264dspenc.o
OBJS-$(CONFIG_H264_VAAPI_HWACCEL) += vaapi_h264.o
@@ -282,6 +283,7 @@ OBJS-$(CONFIG_SVQ1_ENCODER) +
motion_est.o h263.o \
mpegvideo.o error_resilience.o
OBJS-$(CONFIG_SVQ3_DECODER) += h264.o svq3.o h264idct.o h264pred.o h264_loopfilter.o h264_direct.o \
+ h264_sei.o \
cabac.o \
mpegvideo.o error_resilience.o \
svq1dec.o svq1.o h263.o
Modified: trunk/libavcodec/h264.c
==============================================================================
--- trunk/libavcodec/h264.c Tue Jan 12 17:36:23 2010 (r21167)
+++ trunk/libavcodec/h264.c Tue Jan 12 19:54:40 2010 (r21168)
@@ -1568,18 +1568,6 @@ static av_cold void common_init(H264Cont
memset(h->pps.scaling_matrix8, 16, 2*64*sizeof(uint8_t));
}
-/**
- * Reset SEI values at the beginning of the frame.
- *
- * @param h H.264 context.
- */
-static void reset_sei(H264Context *h) {
- h->sei_recovery_frame_cnt = -1;
- h->sei_dpb_output_delay = 0;
- h->sei_cpb_removal_delay = -1;
- h->sei_buffering_period_present = 0;
-}
-
av_cold int ff_h264_decode_init(AVCodecContext *avctx){
H264Context *h= avctx->priv_data;
MpegEncContext * const s = &h->s;
@@ -1613,7 +1601,7 @@ av_cold int ff_h264_decode_init(AVCodecC
h->thread_context[0] = h;
h->outputed_poc = INT_MIN;
h->prev_poc_msb= 1<<16;
- reset_sei(h);
+ ff_h264_reset_sei(h);
if(avctx->codec_id == CODEC_ID_H264){
if(avctx->ticks_per_frame == 1){
s->avctx->time_base.den *=2;
@@ -2559,7 +2547,7 @@ static void flush_dpb(AVCodecContext *av
if(h->s.current_picture_ptr)
h->s.current_picture_ptr->reference= 0;
h->s.first_field= 0;
- reset_sei(h);
+ ff_h264_reset_sei(h);
ff_mpeg_flush(avctx);
}
@@ -5606,167 +5594,6 @@ static int decode_slice(struct AVCodecCo
return -1; //not reached
}
-static int decode_picture_timing(H264Context *h){
- MpegEncContext * const s = &h->s;
- if(h->sps.nal_hrd_parameters_present_flag || h->sps.vcl_hrd_parameters_present_flag){
- h->sei_cpb_removal_delay = get_bits(&s->gb, h->sps.cpb_removal_delay_length);
- h->sei_dpb_output_delay = get_bits(&s->gb, h->sps.dpb_output_delay_length);
- }
- if(h->sps.pic_struct_present_flag){
- unsigned int i, num_clock_ts;
- h->sei_pic_struct = get_bits(&s->gb, 4);
- h->sei_ct_type = 0;
-
- if (h->sei_pic_struct > SEI_PIC_STRUCT_FRAME_TRIPLING)
- return -1;
-
- num_clock_ts = sei_num_clock_ts_table[h->sei_pic_struct];
-
- for (i = 0 ; i < num_clock_ts ; i++){
- if(get_bits(&s->gb, 1)){ /* clock_timestamp_flag */
- unsigned int full_timestamp_flag;
- h->sei_ct_type |= 1<<get_bits(&s->gb, 2);
- skip_bits(&s->gb, 1); /* nuit_field_based_flag */
- skip_bits(&s->gb, 5); /* counting_type */
- full_timestamp_flag = get_bits(&s->gb, 1);
- skip_bits(&s->gb, 1); /* discontinuity_flag */
- skip_bits(&s->gb, 1); /* cnt_dropped_flag */
- skip_bits(&s->gb, 8); /* n_frames */
- if(full_timestamp_flag){
- skip_bits(&s->gb, 6); /* seconds_value 0..59 */
- skip_bits(&s->gb, 6); /* minutes_value 0..59 */
- skip_bits(&s->gb, 5); /* hours_value 0..23 */
- }else{
- if(get_bits(&s->gb, 1)){ /* seconds_flag */
- skip_bits(&s->gb, 6); /* seconds_value range 0..59 */
- if(get_bits(&s->gb, 1)){ /* minutes_flag */
- skip_bits(&s->gb, 6); /* minutes_value 0..59 */
- if(get_bits(&s->gb, 1)) /* hours_flag */
- skip_bits(&s->gb, 5); /* hours_value 0..23 */
- }
- }
- }
- if(h->sps.time_offset_length > 0)
- skip_bits(&s->gb, h->sps.time_offset_length); /* time_offset */
- }
- }
-
- if(s->avctx->debug & FF_DEBUG_PICT_INFO)
- av_log(s->avctx, AV_LOG_DEBUG, "ct_type:%X pic_struct:%d\n", h->sei_ct_type, h->sei_pic_struct);
- }
- return 0;
-}
-
-static int decode_unregistered_user_data(H264Context *h, int size){
- MpegEncContext * const s = &h->s;
- uint8_t user_data[16+256];
- int e, build, i;
-
- if(size<16)
- return -1;
-
- for(i=0; i<sizeof(user_data)-1 && i<size; i++){
- user_data[i]= get_bits(&s->gb, 8);
- }
-
- user_data[i]= 0;
- e= sscanf(user_data+16, "x264 - core %d"/*%s - H.264/MPEG-4 AVC codec - Copyleft 2005 - http://www.videolan.org/x264.html*/, &build);
- if(e==1 && build>=0)
- h->x264_build= build;
-
- if(s->avctx->debug & FF_DEBUG_BUGS)
- av_log(s->avctx, AV_LOG_DEBUG, "user data:\"%s\"\n", user_data+16);
-
- for(; i<size; i++)
- skip_bits(&s->gb, 8);
-
- return 0;
-}
-
-static int decode_recovery_point(H264Context *h){
- MpegEncContext * const s = &h->s;
-
- h->sei_recovery_frame_cnt = get_ue_golomb(&s->gb);
- skip_bits(&s->gb, 4); /* 1b exact_match_flag, 1b broken_link_flag, 2b changing_slice_group_idc */
-
- return 0;
-}
-
-static int decode_buffering_period(H264Context *h){
- MpegEncContext * const s = &h->s;
- unsigned int sps_id;
- int sched_sel_idx;
- SPS *sps;
-
- sps_id = get_ue_golomb_31(&s->gb);
- if(sps_id > 31 || !h->sps_buffers[sps_id]) {
- av_log(h->s.avctx, AV_LOG_ERROR, "non-existing SPS %d referenced in buffering period\n", sps_id);
- return -1;
- }
- sps = h->sps_buffers[sps_id];
-
- // NOTE: This is really so duplicated in the standard... See H.264, D.1.1
- if (sps->nal_hrd_parameters_present_flag) {
- for (sched_sel_idx = 0; sched_sel_idx < sps->cpb_cnt; sched_sel_idx++) {
- h->initial_cpb_removal_delay[sched_sel_idx] = get_bits(&s->gb, sps->initial_cpb_removal_delay_length);
- skip_bits(&s->gb, sps->initial_cpb_removal_delay_length); // initial_cpb_removal_delay_offset
- }
- }
- if (sps->vcl_hrd_parameters_present_flag) {
- for (sched_sel_idx = 0; sched_sel_idx < sps->cpb_cnt; sched_sel_idx++) {
- h->initial_cpb_removal_delay[sched_sel_idx] = get_bits(&s->gb, sps->initial_cpb_removal_delay_length);
- skip_bits(&s->gb, sps->initial_cpb_removal_delay_length); // initial_cpb_removal_delay_offset
- }
- }
-
- h->sei_buffering_period_present = 1;
- return 0;
-}
-
-int ff_h264_decode_sei(H264Context *h){
- MpegEncContext * const s = &h->s;
-
- while(get_bits_count(&s->gb) + 16 < s->gb.size_in_bits){
- int size, type;
-
- type=0;
- do{
- type+= show_bits(&s->gb, 8);
- }while(get_bits(&s->gb, 8) == 255);
-
- size=0;
- do{
- size+= show_bits(&s->gb, 8);
- }while(get_bits(&s->gb, 8) == 255);
-
- switch(type){
- case SEI_TYPE_PIC_TIMING: // Picture timing SEI
- if(decode_picture_timing(h) < 0)
- return -1;
- break;
- case SEI_TYPE_USER_DATA_UNREGISTERED:
- if(decode_unregistered_user_data(h, size) < 0)
- return -1;
- break;
- case SEI_TYPE_RECOVERY_POINT:
- if(decode_recovery_point(h) < 0)
- return -1;
- break;
- case SEI_BUFFERING_PERIOD:
- if(decode_buffering_period(h) < 0)
- return -1;
- break;
- default:
- skip_bits(&s->gb, 8*size);
- }
-
- //FIXME check bits here
- align_get_bits(&s->gb);
- }
-
- return 0;
-}
-
static inline int decode_hrd_parameters(H264Context *h, SPS *sps){
MpegEncContext * const s = &h->s;
int cpb_count, i;
@@ -6257,7 +6084,7 @@ static int decode_nal_units(H264Context
h->current_slice = 0;
if (!s->first_field)
s->current_picture_ptr= NULL;
- reset_sei(h);
+ ff_h264_reset_sei(h);
}
for(;;){
Modified: trunk/libavcodec/h264.h
==============================================================================
--- trunk/libavcodec/h264.h Tue Jan 12 17:36:23 2010 (r21167)
+++ trunk/libavcodec/h264.h Tue Jan 12 19:54:40 2010 (r21168)
@@ -617,6 +617,14 @@ void ff_h264_pred_direct_motion(H264Cont
void ff_h264_filter_mb_fast( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize);
void ff_h264_filter_mb( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize);
+/**
+ * Reset SEI values at the beginning of the frame.
+ *
+ * @param h H.264 context.
+ */
+void ff_h264_reset_sei(H264Context *h);
+
+
/*
o-o o-o
/ / /
Copied and modified: trunk/libavcodec/h264_sei.c (from r21165, trunk/libavcodec/h264.c)
==============================================================================
--- trunk/libavcodec/h264.c Tue Jan 12 15:32:58 2010 (r21165, copy source)
+++ trunk/libavcodec/h264_sei.c Tue Jan 12 19:54:40 2010 (r21168)
@@ -1,5 +1,5 @@
/*
- * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
+ * H.26L/H.264/AVC/JVT/14496-10/... sei decoding
* Copyright (c) 2003 Michael Niedermayer <michaelni at gmx.at>
*
* This file is part of FFmpeg.
@@ -20,5592 +20,30 @@
*/
/**
- * @file libavcodec/h264.c
- * H.264 / AVC / MPEG4 part10 codec.
+ * @file libavcodec/h264-sei.c
+ * H.264 / AVC / MPEG4 part10 sei decoding.
* @author Michael Niedermayer <michaelni at gmx.at>
*/
#include "internal.h"
-#include "dsputil.h"
#include "avcodec.h"
-#include "mpegvideo.h"
#include "h264.h"
-#include "h264data.h"
-#include "h264_parser.h"
#include "golomb.h"
-#include "mathops.h"
-#include "rectangle.h"
-#include "vdpau_internal.h"
-
-#include "cabac.h"
-#if ARCH_X86
-#include "x86/h264_i386.h"
-#endif
//#undef NDEBUG
#include <assert.h>
-/**
- * Value of Picture.reference when Picture is not a reference picture, but
- * is held for delayed output.
- */
-#define DELAYED_PIC_REF 4
-
-static VLC coeff_token_vlc[4];
-static VLC_TYPE coeff_token_vlc_tables[520+332+280+256][2];
-static const int coeff_token_vlc_tables_size[4]={520,332,280,256};
-
-static VLC chroma_dc_coeff_token_vlc;
-static VLC_TYPE chroma_dc_coeff_token_vlc_table[256][2];
-static const int chroma_dc_coeff_token_vlc_table_size = 256;
-
-static VLC total_zeros_vlc[15];
-static VLC_TYPE total_zeros_vlc_tables[15][512][2];
-static const int total_zeros_vlc_tables_size = 512;
-
-static VLC chroma_dc_total_zeros_vlc[3];
-static VLC_TYPE chroma_dc_total_zeros_vlc_tables[3][8][2];
-static const int chroma_dc_total_zeros_vlc_tables_size = 8;
-
-static VLC run_vlc[6];
-static VLC_TYPE run_vlc_tables[6][8][2];
-static const int run_vlc_tables_size = 8;
-
-static VLC run7_vlc;
-static VLC_TYPE run7_vlc_table[96][2];
-static const int run7_vlc_table_size = 96;
-
-static void svq3_luma_dc_dequant_idct_c(DCTELEM *block, int qp);
-static void svq3_add_idct_c(uint8_t *dst, DCTELEM *block, int stride, int qp, int dc);
-static Picture * remove_long(H264Context *h, int i, int ref_mask);
-
-static const uint8_t rem6[52]={
-0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3,
-};
-
-static const uint8_t div6[52]={
-0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8,
-};
-
-static const uint8_t left_block_options[4][8]={
- {0,1,2,3,7,10,8,11},
- {2,2,3,3,8,11,8,11},
- {0,0,1,1,7,10,7,10},
- {0,2,0,2,7,10,7,10}
+static const uint8_t sei_num_clock_ts_table[9]={
+ 1, 1, 1, 2, 2, 3, 3, 2, 3
};
-#define LEVEL_TAB_BITS 8
-static int8_t cavlc_level_tab[7][1<<LEVEL_TAB_BITS][2];
-
-static void fill_caches(H264Context *h, int mb_type, int for_deblock){
- MpegEncContext * const s = &h->s;
- const int mb_xy= h->mb_xy;
- int topleft_xy, top_xy, topright_xy, left_xy[2];
- int topleft_type, top_type, topright_type, left_type[2];
- const uint8_t * left_block;
- int topleft_partition= -1;
- int i;
-
- top_xy = mb_xy - (s->mb_stride << FIELD_PICTURE);
-
- //FIXME deblocking could skip the intra and nnz parts.
- if(for_deblock && (h->slice_num == 1 || h->slice_table[mb_xy] == h->slice_table[top_xy]) && !FRAME_MBAFF)
- return;
-
- /* Wow, what a mess, why didn't they simplify the interlacing & intra
- * stuff, I can't imagine that these complex rules are worth it. */
-
- topleft_xy = top_xy - 1;
- topright_xy= top_xy + 1;
- left_xy[1] = left_xy[0] = mb_xy-1;
- left_block = left_block_options[0];
- if(FRAME_MBAFF){
- const int pair_xy = s->mb_x + (s->mb_y & ~1)*s->mb_stride;
- const int top_pair_xy = pair_xy - s->mb_stride;
- const int topleft_pair_xy = top_pair_xy - 1;
- const int topright_pair_xy = top_pair_xy + 1;
- const int topleft_mb_field_flag = IS_INTERLACED(s->current_picture.mb_type[topleft_pair_xy]);
- const int top_mb_field_flag = IS_INTERLACED(s->current_picture.mb_type[top_pair_xy]);
- const int topright_mb_field_flag = IS_INTERLACED(s->current_picture.mb_type[topright_pair_xy]);
- const int left_mb_field_flag = IS_INTERLACED(s->current_picture.mb_type[pair_xy-1]);
- const int curr_mb_field_flag = IS_INTERLACED(mb_type);
- const int bottom = (s->mb_y & 1);
- tprintf(s->avctx, "fill_caches: curr_mb_field_flag:%d, left_mb_field_flag:%d, topleft_mb_field_flag:%d, top_mb_field_flag:%d, topright_mb_field_flag:%d\n", curr_mb_field_flag, left_mb_field_flag, topleft_mb_field_flag, top_mb_field_flag, topright_mb_field_flag);
-
- if (curr_mb_field_flag && (bottom || top_mb_field_flag)){
- top_xy -= s->mb_stride;
- }
- if (curr_mb_field_flag && (bottom || topleft_mb_field_flag)){
- topleft_xy -= s->mb_stride;
- } else if(bottom && !curr_mb_field_flag && left_mb_field_flag) {
- topleft_xy += s->mb_stride;
- // take top left mv from the middle of the mb, as opposed to all other modes which use the bottom right partition
- topleft_partition = 0;
- }
- if (curr_mb_field_flag && (bottom || topright_mb_field_flag)){
- topright_xy -= s->mb_stride;
- }
- if (left_mb_field_flag != curr_mb_field_flag) {
- left_xy[1] = left_xy[0] = pair_xy - 1;
- if (curr_mb_field_flag) {
- left_xy[1] += s->mb_stride;
- left_block = left_block_options[3];
- } else {
- left_block= left_block_options[2 - bottom];
- }
- }
- }
-
- h->top_mb_xy = top_xy;
- h->left_mb_xy[0] = left_xy[0];
- h->left_mb_xy[1] = left_xy[1];
- if(for_deblock){
- topleft_type = 0;
- topright_type = 0;
- top_type = h->slice_table[top_xy ] < 0xFFFF ? s->current_picture.mb_type[top_xy] : 0;
- left_type[0] = h->slice_table[left_xy[0] ] < 0xFFFF ? s->current_picture.mb_type[left_xy[0]] : 0;
- left_type[1] = h->slice_table[left_xy[1] ] < 0xFFFF ? s->current_picture.mb_type[left_xy[1]] : 0;
-
- if(MB_MBAFF && !IS_INTRA(mb_type)){
- int list;
- for(list=0; list<h->list_count; list++){
- //These values where changed for ease of performing MC, we need to change them back
- //FIXME maybe we can make MC and loop filter use the same values or prevent
- //the MC code from changing ref_cache and rather use a temporary array.
- if(USES_LIST(mb_type,list)){
- int8_t *ref = &s->current_picture.ref_index[list][h->mb2b8_xy[mb_xy]];
- *(uint32_t*)&h->ref_cache[list][scan8[ 0]] =
- *(uint32_t*)&h->ref_cache[list][scan8[ 2]] = (pack16to32(ref[0],ref[1])&0x00FF00FF)*0x0101;
- ref += h->b8_stride;
- *(uint32_t*)&h->ref_cache[list][scan8[ 8]] =
- *(uint32_t*)&h->ref_cache[list][scan8[10]] = (pack16to32(ref[0],ref[1])&0x00FF00FF)*0x0101;
- }
- }
- }
- }else{
- topleft_type = h->slice_table[topleft_xy ] == h->slice_num ? s->current_picture.mb_type[topleft_xy] : 0;
- top_type = h->slice_table[top_xy ] == h->slice_num ? s->current_picture.mb_type[top_xy] : 0;
- topright_type= h->slice_table[topright_xy] == h->slice_num ? s->current_picture.mb_type[topright_xy]: 0;
- left_type[0] = h->slice_table[left_xy[0] ] == h->slice_num ? s->current_picture.mb_type[left_xy[0]] : 0;
- left_type[1] = h->slice_table[left_xy[1] ] == h->slice_num ? s->current_picture.mb_type[left_xy[1]] : 0;
-
- if(IS_INTRA(mb_type)){
- int type_mask= h->pps.constrained_intra_pred ? IS_INTRA(-1) : -1;
- h->topleft_samples_available=
- h->top_samples_available=
- h->left_samples_available= 0xFFFF;
- h->topright_samples_available= 0xEEEA;
-
- if(!(top_type & type_mask)){
- h->topleft_samples_available= 0xB3FF;
- h->top_samples_available= 0x33FF;
- h->topright_samples_available= 0x26EA;
- }
- if(IS_INTERLACED(mb_type) != IS_INTERLACED(left_type[0])){
- if(IS_INTERLACED(mb_type)){
- if(!(left_type[0] & type_mask)){
- h->topleft_samples_available&= 0xDFFF;
- h->left_samples_available&= 0x5FFF;
- }
- if(!(left_type[1] & type_mask)){
- h->topleft_samples_available&= 0xFF5F;
- h->left_samples_available&= 0xFF5F;
- }
- }else{
- int left_typei = h->slice_table[left_xy[0] + s->mb_stride ] == h->slice_num
- ? s->current_picture.mb_type[left_xy[0] + s->mb_stride] : 0;
- assert(left_xy[0] == left_xy[1]);
- if(!((left_typei & type_mask) && (left_type[0] & type_mask))){
- h->topleft_samples_available&= 0xDF5F;
- h->left_samples_available&= 0x5F5F;
- }
- }
- }else{
- if(!(left_type[0] & type_mask)){
- h->topleft_samples_available&= 0xDF5F;
- h->left_samples_available&= 0x5F5F;
- }
- }
-
- if(!(topleft_type & type_mask))
- h->topleft_samples_available&= 0x7FFF;
-
- if(!(topright_type & type_mask))
- h->topright_samples_available&= 0xFBFF;
-
- if(IS_INTRA4x4(mb_type)){
- if(IS_INTRA4x4(top_type)){
- h->intra4x4_pred_mode_cache[4+8*0]= h->intra4x4_pred_mode[top_xy][4];
- h->intra4x4_pred_mode_cache[5+8*0]= h->intra4x4_pred_mode[top_xy][5];
- h->intra4x4_pred_mode_cache[6+8*0]= h->intra4x4_pred_mode[top_xy][6];
- h->intra4x4_pred_mode_cache[7+8*0]= h->intra4x4_pred_mode[top_xy][3];
- }else{
- int pred;
- if(!(top_type & type_mask))
- pred= -1;
- else{
- pred= 2;
- }
- h->intra4x4_pred_mode_cache[4+8*0]=
- h->intra4x4_pred_mode_cache[5+8*0]=
- h->intra4x4_pred_mode_cache[6+8*0]=
- h->intra4x4_pred_mode_cache[7+8*0]= pred;
- }
- for(i=0; i<2; i++){
- if(IS_INTRA4x4(left_type[i])){
- h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[0+2*i]];
- h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[1+2*i]];
- }else{
- int pred;
- if(!(left_type[i] & type_mask))
- pred= -1;
- else{
- pred= 2;
- }
- h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]=
- h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= pred;
- }
- }
- }
- }
- }
-
-
-/*
-0 . T T. T T T T
-1 L . .L . . . .
-2 L . .L . . . .
-3 . T TL . . . .
-4 L . .L . . . .
-5 L . .. . . . .
-*/
-//FIXME constraint_intra_pred & partitioning & nnz (let us hope this is just a typo in the spec)
- if(top_type){
- h->non_zero_count_cache[4+8*0]= h->non_zero_count[top_xy][4];
- h->non_zero_count_cache[5+8*0]= h->non_zero_count[top_xy][5];
- h->non_zero_count_cache[6+8*0]= h->non_zero_count[top_xy][6];
- h->non_zero_count_cache[7+8*0]= h->non_zero_count[top_xy][3];
-
- h->non_zero_count_cache[1+8*0]= h->non_zero_count[top_xy][9];
- h->non_zero_count_cache[2+8*0]= h->non_zero_count[top_xy][8];
-
- h->non_zero_count_cache[1+8*3]= h->non_zero_count[top_xy][12];
- h->non_zero_count_cache[2+8*3]= h->non_zero_count[top_xy][11];
-
- }else{
- h->non_zero_count_cache[4+8*0]=
- h->non_zero_count_cache[5+8*0]=
- h->non_zero_count_cache[6+8*0]=
- h->non_zero_count_cache[7+8*0]=
-
- h->non_zero_count_cache[1+8*0]=
- h->non_zero_count_cache[2+8*0]=
-
- h->non_zero_count_cache[1+8*3]=
- h->non_zero_count_cache[2+8*3]= h->pps.cabac && !IS_INTRA(mb_type) ? 0 : 64;
-
- }
-
- for (i=0; i<2; i++) {
- if(left_type[i]){
- h->non_zero_count_cache[3+8*1 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[0+2*i]];
- h->non_zero_count_cache[3+8*2 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[1+2*i]];
- h->non_zero_count_cache[0+8*1 + 8*i]= h->non_zero_count[left_xy[i]][left_block[4+2*i]];
- h->non_zero_count_cache[0+8*4 + 8*i]= h->non_zero_count[left_xy[i]][left_block[5+2*i]];
- }else{
- h->non_zero_count_cache[3+8*1 + 2*8*i]=
- h->non_zero_count_cache[3+8*2 + 2*8*i]=
- h->non_zero_count_cache[0+8*1 + 8*i]=
- h->non_zero_count_cache[0+8*4 + 8*i]= h->pps.cabac && !IS_INTRA(mb_type) ? 0 : 64;
- }
- }
-
- if( h->pps.cabac ) {
- // top_cbp
- if(top_type) {
- h->top_cbp = h->cbp_table[top_xy];
- } else if(IS_INTRA(mb_type)) {
- h->top_cbp = 0x1C0;
- } else {
- h->top_cbp = 0;
- }
- // left_cbp
- if (left_type[0]) {
- h->left_cbp = h->cbp_table[left_xy[0]] & 0x1f0;
- } else if(IS_INTRA(mb_type)) {
- h->left_cbp = 0x1C0;
- } else {
- h->left_cbp = 0;
- }
- if (left_type[0]) {
- h->left_cbp |= ((h->cbp_table[left_xy[0]]>>((left_block[0]&(~1))+1))&0x1) << 1;
- }
- if (left_type[1]) {
- h->left_cbp |= ((h->cbp_table[left_xy[1]]>>((left_block[2]&(~1))+1))&0x1) << 3;
- }
- }
-
-#if 1
- if(IS_INTER(mb_type) || IS_DIRECT(mb_type)){
- int list;
- for(list=0; list<h->list_count; list++){
- if(!USES_LIST(mb_type, list) && !IS_DIRECT(mb_type) && !h->deblocking_filter){
- /*if(!h->mv_cache_clean[list]){
- memset(h->mv_cache [list], 0, 8*5*2*sizeof(int16_t)); //FIXME clean only input? clean at all?
- memset(h->ref_cache[list], PART_NOT_AVAILABLE, 8*5*sizeof(int8_t));
- h->mv_cache_clean[list]= 1;
- }*/
- continue;
- }
- h->mv_cache_clean[list]= 0;
-
- if(USES_LIST(top_type, list)){
- const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
- const int b8_xy= h->mb2b8_xy[top_xy] + h->b8_stride;
- *(uint32_t*)h->mv_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 0];
- *(uint32_t*)h->mv_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 1];
- *(uint32_t*)h->mv_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 2];
- *(uint32_t*)h->mv_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 3];
- h->ref_cache[list][scan8[0] + 0 - 1*8]=
- h->ref_cache[list][scan8[0] + 1 - 1*8]= s->current_picture.ref_index[list][b8_xy + 0];
- h->ref_cache[list][scan8[0] + 2 - 1*8]=
- h->ref_cache[list][scan8[0] + 3 - 1*8]= s->current_picture.ref_index[list][b8_xy + 1];
- }else{
- *(uint32_t*)h->mv_cache [list][scan8[0] + 0 - 1*8]=
- *(uint32_t*)h->mv_cache [list][scan8[0] + 1 - 1*8]=
- *(uint32_t*)h->mv_cache [list][scan8[0] + 2 - 1*8]=
- *(uint32_t*)h->mv_cache [list][scan8[0] + 3 - 1*8]= 0;
- *(uint32_t*)&h->ref_cache[list][scan8[0] + 0 - 1*8]= ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE)&0xFF)*0x01010101;
- }
-
- for(i=0; i<2; i++){
- int cache_idx = scan8[0] - 1 + i*2*8;
- if(USES_LIST(left_type[i], list)){
- const int b_xy= h->mb2b_xy[left_xy[i]] + 3;
- const int b8_xy= h->mb2b8_xy[left_xy[i]] + 1;
- *(uint32_t*)h->mv_cache[list][cache_idx ]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[0+i*2]];
- *(uint32_t*)h->mv_cache[list][cache_idx+8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[1+i*2]];
- h->ref_cache[list][cache_idx ]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[0+i*2]>>1)];
- h->ref_cache[list][cache_idx+8]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[1+i*2]>>1)];
- }else{
- *(uint32_t*)h->mv_cache [list][cache_idx ]=
- *(uint32_t*)h->mv_cache [list][cache_idx+8]= 0;
- h->ref_cache[list][cache_idx ]=
- h->ref_cache[list][cache_idx+8]= left_type[i] ? LIST_NOT_USED : PART_NOT_AVAILABLE;
- }
- }
-
- if(for_deblock || ((IS_DIRECT(mb_type) && !h->direct_spatial_mv_pred) && !FRAME_MBAFF))
- continue;
-
- if(USES_LIST(topleft_type, list)){
- const int b_xy = h->mb2b_xy[topleft_xy] + 3 + h->b_stride + (topleft_partition & 2*h->b_stride);
- const int b8_xy= h->mb2b8_xy[topleft_xy] + 1 + (topleft_partition & h->b8_stride);
- *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];
- h->ref_cache[list][scan8[0] - 1 - 1*8]= s->current_picture.ref_index[list][b8_xy];
- }else{
- *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= 0;
- h->ref_cache[list][scan8[0] - 1 - 1*8]= topleft_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
- }
-
- if(USES_LIST(topright_type, list)){
- const int b_xy= h->mb2b_xy[topright_xy] + 3*h->b_stride;
- const int b8_xy= h->mb2b8_xy[topright_xy] + h->b8_stride;
- *(uint32_t*)h->mv_cache[list][scan8[0] + 4 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];
- h->ref_cache[list][scan8[0] + 4 - 1*8]= s->current_picture.ref_index[list][b8_xy];
- }else{
- *(uint32_t*)h->mv_cache [list][scan8[0] + 4 - 1*8]= 0;
- h->ref_cache[list][scan8[0] + 4 - 1*8]= topright_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
- }
-
- if((IS_SKIP(mb_type) || IS_DIRECT(mb_type)) && !FRAME_MBAFF)
- continue;
-
- h->ref_cache[list][scan8[5 ]+1] =
- h->ref_cache[list][scan8[7 ]+1] =
- h->ref_cache[list][scan8[13]+1] = //FIXME remove past 3 (init somewhere else)
- h->ref_cache[list][scan8[4 ]] =
- h->ref_cache[list][scan8[12]] = PART_NOT_AVAILABLE;
- *(uint32_t*)h->mv_cache [list][scan8[5 ]+1]=
- *(uint32_t*)h->mv_cache [list][scan8[7 ]+1]=
- *(uint32_t*)h->mv_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewhere else)
- *(uint32_t*)h->mv_cache [list][scan8[4 ]]=
- *(uint32_t*)h->mv_cache [list][scan8[12]]= 0;
-
- if( h->pps.cabac ) {
- /* XXX beurk, Load mvd */
- if(USES_LIST(top_type, list)){
- const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
- *(uint32_t*)h->mvd_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 0];
- *(uint32_t*)h->mvd_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 1];
- *(uint32_t*)h->mvd_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 2];
- *(uint32_t*)h->mvd_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 3];
- }else{
- *(uint32_t*)h->mvd_cache [list][scan8[0] + 0 - 1*8]=
- *(uint32_t*)h->mvd_cache [list][scan8[0] + 1 - 1*8]=
- *(uint32_t*)h->mvd_cache [list][scan8[0] + 2 - 1*8]=
- *(uint32_t*)h->mvd_cache [list][scan8[0] + 3 - 1*8]= 0;
- }
- if(USES_LIST(left_type[0], list)){
- const int b_xy= h->mb2b_xy[left_xy[0]] + 3;
- *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 0*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[0]];
- *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[1]];
- }else{
- *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 0*8]=
- *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 1*8]= 0;
- }
- if(USES_LIST(left_type[1], list)){
- const int b_xy= h->mb2b_xy[left_xy[1]] + 3;
- *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 2*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[2]];
- *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 3*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[3]];
- }else{
- *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 2*8]=
- *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 3*8]= 0;
- }
- *(uint32_t*)h->mvd_cache [list][scan8[5 ]+1]=
- *(uint32_t*)h->mvd_cache [list][scan8[7 ]+1]=
- *(uint32_t*)h->mvd_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewhere else)
- *(uint32_t*)h->mvd_cache [list][scan8[4 ]]=
- *(uint32_t*)h->mvd_cache [list][scan8[12]]= 0;
-
- if(h->slice_type_nos == FF_B_TYPE){
- fill_rectangle(&h->direct_cache[scan8[0]], 4, 4, 8, 0, 1);
-
- if(IS_DIRECT(top_type)){
- *(uint32_t*)&h->direct_cache[scan8[0] - 1*8]= 0x01010101;
- }else if(IS_8X8(top_type)){
- int b8_xy = h->mb2b8_xy[top_xy] + h->b8_stride;
- h->direct_cache[scan8[0] + 0 - 1*8]= h->direct_table[b8_xy];
- h->direct_cache[scan8[0] + 2 - 1*8]= h->direct_table[b8_xy + 1];
- }else{
- *(uint32_t*)&h->direct_cache[scan8[0] - 1*8]= 0;
- }
-
- if(IS_DIRECT(left_type[0]))
- h->direct_cache[scan8[0] - 1 + 0*8]= 1;
- else if(IS_8X8(left_type[0]))
- h->direct_cache[scan8[0] - 1 + 0*8]= h->direct_table[h->mb2b8_xy[left_xy[0]] + 1 + h->b8_stride*(left_block[0]>>1)];
- else
- h->direct_cache[scan8[0] - 1 + 0*8]= 0;
-
- if(IS_DIRECT(left_type[1]))
- h->direct_cache[scan8[0] - 1 + 2*8]= 1;
- else if(IS_8X8(left_type[1]))
- h->direct_cache[scan8[0] - 1 + 2*8]= h->direct_table[h->mb2b8_xy[left_xy[1]] + 1 + h->b8_stride*(left_block[2]>>1)];
- else
- h->direct_cache[scan8[0] - 1 + 2*8]= 0;
- }
- }
-
- if(FRAME_MBAFF){
-#define MAP_MVS\
- MAP_F2F(scan8[0] - 1 - 1*8, topleft_type)\
- MAP_F2F(scan8[0] + 0 - 1*8, top_type)\
- MAP_F2F(scan8[0] + 1 - 1*8, top_type)\
- MAP_F2F(scan8[0] + 2 - 1*8, top_type)\
- MAP_F2F(scan8[0] + 3 - 1*8, top_type)\
- MAP_F2F(scan8[0] + 4 - 1*8, topright_type)\
- MAP_F2F(scan8[0] - 1 + 0*8, left_type[0])\
- MAP_F2F(scan8[0] - 1 + 1*8, left_type[0])\
- MAP_F2F(scan8[0] - 1 + 2*8, left_type[1])\
- MAP_F2F(scan8[0] - 1 + 3*8, left_type[1])
- if(MB_FIELD){
-#define MAP_F2F(idx, mb_type)\
- if(!IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\
- h->ref_cache[list][idx] <<= 1;\
- h->mv_cache[list][idx][1] /= 2;\
- h->mvd_cache[list][idx][1] /= 2;\
- }
- MAP_MVS
-#undef MAP_F2F
- }else{
-#define MAP_F2F(idx, mb_type)\
- if(IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\
- h->ref_cache[list][idx] >>= 1;\
- h->mv_cache[list][idx][1] <<= 1;\
- h->mvd_cache[list][idx][1] <<= 1;\
- }
- MAP_MVS
-#undef MAP_F2F
- }
- }
- }
- }
-#endif
-
- h->neighbor_transform_size= !!IS_8x8DCT(top_type) + !!IS_8x8DCT(left_type[0]);
-}
-
-void ff_h264_write_back_intra_pred_mode(H264Context *h){
- const int mb_xy= h->mb_xy;
-
- h->intra4x4_pred_mode[mb_xy][0]= h->intra4x4_pred_mode_cache[7+8*1];
- h->intra4x4_pred_mode[mb_xy][1]= h->intra4x4_pred_mode_cache[7+8*2];
- h->intra4x4_pred_mode[mb_xy][2]= h->intra4x4_pred_mode_cache[7+8*3];
- h->intra4x4_pred_mode[mb_xy][3]= h->intra4x4_pred_mode_cache[7+8*4];
- h->intra4x4_pred_mode[mb_xy][4]= h->intra4x4_pred_mode_cache[4+8*4];
- h->intra4x4_pred_mode[mb_xy][5]= h->intra4x4_pred_mode_cache[5+8*4];
- h->intra4x4_pred_mode[mb_xy][6]= h->intra4x4_pred_mode_cache[6+8*4];
-}
-
-/**
- * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
- */
-int ff_h264_check_intra_pred_mode(H264Context *h, int mode){
- MpegEncContext * const s = &h->s;
- static const int8_t top [7]= {LEFT_DC_PRED8x8, 1,-1,-1};
- static const int8_t left[7]= { TOP_DC_PRED8x8,-1, 2,-1,DC_128_PRED8x8};
-
- if(mode > 6U) {
- av_log(h->s.avctx, AV_LOG_ERROR, "out of range intra chroma pred mode at %d %d\n", s->mb_x, s->mb_y);
- return -1;
- }
-
- if(!(h->top_samples_available&0x8000)){
- mode= top[ mode ];
- if(mode<0){
- av_log(h->s.avctx, AV_LOG_ERROR, "top block unavailable for requested intra mode at %d %d\n", s->mb_x, s->mb_y);
- return -1;
- }
- }
-
- if((h->left_samples_available&0x8080) != 0x8080){
- mode= left[ mode ];
- if(h->left_samples_available&0x8080){ //mad cow disease mode, aka MBAFF + constrained_intra_pred
- mode= ALZHEIMER_DC_L0T_PRED8x8 + (!(h->left_samples_available&0x8000)) + 2*(mode == DC_128_PRED8x8);
- }
- if(mode<0){
- av_log(h->s.avctx, AV_LOG_ERROR, "left block unavailable for requested intra mode at %d %d\n", s->mb_x, s->mb_y);
- return -1;
- }
- }
-
- return mode;
-}
-
-/**
- * gets the predicted intra4x4 prediction mode.
- */
-static inline int pred_intra_mode(H264Context *h, int n){
- const int index8= scan8[n];
- const int left= h->intra4x4_pred_mode_cache[index8 - 1];
- const int top = h->intra4x4_pred_mode_cache[index8 - 8];
- const int min= FFMIN(left, top);
-
- tprintf(h->s.avctx, "mode:%d %d min:%d\n", left ,top, min);
-
- if(min<0) return DC_PRED;
- else return min;
-}
-
-static inline void write_back_non_zero_count(H264Context *h){
- const int mb_xy= h->mb_xy;
-
- h->non_zero_count[mb_xy][0]= h->non_zero_count_cache[7+8*1];
- h->non_zero_count[mb_xy][1]= h->non_zero_count_cache[7+8*2];
- h->non_zero_count[mb_xy][2]= h->non_zero_count_cache[7+8*3];
- h->non_zero_count[mb_xy][3]= h->non_zero_count_cache[7+8*4];
- h->non_zero_count[mb_xy][4]= h->non_zero_count_cache[4+8*4];
- h->non_zero_count[mb_xy][5]= h->non_zero_count_cache[5+8*4];
- h->non_zero_count[mb_xy][6]= h->non_zero_count_cache[6+8*4];
-
- h->non_zero_count[mb_xy][9]= h->non_zero_count_cache[1+8*2];
- h->non_zero_count[mb_xy][8]= h->non_zero_count_cache[2+8*2];
- h->non_zero_count[mb_xy][7]= h->non_zero_count_cache[2+8*1];
-
- h->non_zero_count[mb_xy][12]=h->non_zero_count_cache[1+8*5];
- h->non_zero_count[mb_xy][11]=h->non_zero_count_cache[2+8*5];
- h->non_zero_count[mb_xy][10]=h->non_zero_count_cache[2+8*4];
-}
-
-/**
- * gets the predicted number of non-zero coefficients.
- * @param n block index
- */
-static inline int pred_non_zero_count(H264Context *h, int n){
- const int index8= scan8[n];
- const int left= h->non_zero_count_cache[index8 - 1];
- const int top = h->non_zero_count_cache[index8 - 8];
- int i= left + top;
-
- if(i<64) i= (i+1)>>1;
-
- tprintf(h->s.avctx, "pred_nnz L%X T%X n%d s%d P%X\n", left, top, n, scan8[n], i&31);
-
- return i&31;
-}
-
-/**
- * gets the directionally predicted 16x8 MV.
- * @param n the block index
- * @param mx the x component of the predicted motion vector
- * @param my the y component of the predicted motion vector
- */
-static inline void pred_16x8_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){
- if(n==0){
- const int top_ref= h->ref_cache[list][ scan8[0] - 8 ];
- const int16_t * const B= h->mv_cache[list][ scan8[0] - 8 ];
-
- tprintf(h->s.avctx, "pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d\n", top_ref, B[0], B[1], h->s.mb_x, h->s.mb_y, n, list);
-
- if(top_ref == ref){
- *mx= B[0];
- *my= B[1];
- return;
- }
- }else{
- const int left_ref= h->ref_cache[list][ scan8[8] - 1 ];
- const int16_t * const A= h->mv_cache[list][ scan8[8] - 1 ];
-
- tprintf(h->s.avctx, "pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d\n", left_ref, A[0], A[1], h->s.mb_x, h->s.mb_y, n, list);
-
- if(left_ref == ref){
- *mx= A[0];
- *my= A[1];
- return;
- }
- }
-
- //RARE
- pred_motion(h, n, 4, list, ref, mx, my);
-}
-
-/**
- * gets the directionally predicted 8x16 MV.
- * @param n the block index
- * @param mx the x component of the predicted motion vector
- * @param my the y component of the predicted motion vector
- */
-static inline void pred_8x16_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){
- if(n==0){
- const int left_ref= h->ref_cache[list][ scan8[0] - 1 ];
- const int16_t * const A= h->mv_cache[list][ scan8[0] - 1 ];
-
- tprintf(h->s.avctx, "pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d\n", left_ref, A[0], A[1], h->s.mb_x, h->s.mb_y, n, list);
-
- if(left_ref == ref){
- *mx= A[0];
- *my= A[1];
- return;
- }
- }else{
- const int16_t * C;
- int diagonal_ref;
-
- diagonal_ref= fetch_diagonal_mv(h, &C, scan8[4], list, 2);
-
- tprintf(h->s.avctx, "pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d\n", diagonal_ref, C[0], C[1], h->s.mb_x, h->s.mb_y, n, list);
-
- if(diagonal_ref == ref){
- *mx= C[0];
- *my= C[1];
- return;
- }
- }
-
- //RARE
- pred_motion(h, n, 2, list, ref, mx, my);
-}
-
-static inline void pred_pskip_motion(H264Context * const h, int * const mx, int * const my){
- const int top_ref = h->ref_cache[0][ scan8[0] - 8 ];
- const int left_ref= h->ref_cache[0][ scan8[0] - 1 ];
-
- tprintf(h->s.avctx, "pred_pskip: (%d) (%d) at %2d %2d\n", top_ref, left_ref, h->s.mb_x, h->s.mb_y);
-
- if(top_ref == PART_NOT_AVAILABLE || left_ref == PART_NOT_AVAILABLE
- || !( top_ref | *(uint32_t*)h->mv_cache[0][ scan8[0] - 8 ])
- || !(left_ref | *(uint32_t*)h->mv_cache[0][ scan8[0] - 1 ])){
-
- *mx = *my = 0;
- return;
- }
-
- pred_motion(h, 0, 4, 0, 0, mx, my);
-
- return;
-}
-
-static inline void write_back_motion(H264Context *h, int mb_type){
- MpegEncContext * const s = &h->s;
- const int b_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride;
- const int b8_xy= 2*s->mb_x + 2*s->mb_y*h->b8_stride;
- int list;
-
- if(!USES_LIST(mb_type, 0))
- fill_rectangle(&s->current_picture.ref_index[0][b8_xy], 2, 2, h->b8_stride, (uint8_t)LIST_NOT_USED, 1);
-
- for(list=0; list<h->list_count; list++){
- int y;
- if(!USES_LIST(mb_type, list))
- continue;
-
- for(y=0; y<4; y++){
- *(uint64_t*)s->current_picture.motion_val[list][b_xy + 0 + y*h->b_stride]= *(uint64_t*)h->mv_cache[list][scan8[0]+0 + 8*y];
- *(uint64_t*)s->current_picture.motion_val[list][b_xy + 2 + y*h->b_stride]= *(uint64_t*)h->mv_cache[list][scan8[0]+2 + 8*y];
- }
- if( h->pps.cabac ) {
- if(IS_SKIP(mb_type))
- fill_rectangle(h->mvd_table[list][b_xy], 4, 4, h->b_stride, 0, 4);
- else
- for(y=0; y<4; y++){
- *(uint64_t*)h->mvd_table[list][b_xy + 0 + y*h->b_stride]= *(uint64_t*)h->mvd_cache[list][scan8[0]+0 + 8*y];
- *(uint64_t*)h->mvd_table[list][b_xy + 2 + y*h->b_stride]= *(uint64_t*)h->mvd_cache[list][scan8[0]+2 + 8*y];
- }
- }
-
- {
- int8_t *ref_index = &s->current_picture.ref_index[list][b8_xy];
- ref_index[0+0*h->b8_stride]= h->ref_cache[list][scan8[0]];
- ref_index[1+0*h->b8_stride]= h->ref_cache[list][scan8[4]];
- ref_index[0+1*h->b8_stride]= h->ref_cache[list][scan8[8]];
- ref_index[1+1*h->b8_stride]= h->ref_cache[list][scan8[12]];
- }
- }
-
- if(h->slice_type_nos == FF_B_TYPE && h->pps.cabac){
- if(IS_8X8(mb_type)){
- uint8_t *direct_table = &h->direct_table[b8_xy];
- direct_table[1+0*h->b8_stride] = IS_DIRECT(h->sub_mb_type[1]) ? 1 : 0;
- direct_table[0+1*h->b8_stride] = IS_DIRECT(h->sub_mb_type[2]) ? 1 : 0;
- direct_table[1+1*h->b8_stride] = IS_DIRECT(h->sub_mb_type[3]) ? 1 : 0;
- }
- }
-}
-
-const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src, int *dst_length, int *consumed, int length){
- int i, si, di;
- uint8_t *dst;
- int bufidx;
-
-// src[0]&0x80; //forbidden bit
- h->nal_ref_idc= src[0]>>5;
- h->nal_unit_type= src[0]&0x1F;
-
- src++; length--;
-#if 0
- for(i=0; i<length; i++)
- printf("%2X ", src[i]);
-#endif
-
-#if HAVE_FAST_UNALIGNED
-# if HAVE_FAST_64BIT
-# define RS 7
- for(i=0; i+1<length; i+=9){
- if(!((~*(const uint64_t*)(src+i) & (*(const uint64_t*)(src+i) - 0x0100010001000101ULL)) & 0x8000800080008080ULL))
-# else
-# define RS 3
- for(i=0; i+1<length; i+=5){
- if(!((~*(const uint32_t*)(src+i) & (*(const uint32_t*)(src+i) - 0x01000101U)) & 0x80008080U))
-# endif
- continue;
- if(i>0 && !src[i]) i--;
- while(src[i]) i++;
-#else
-# define RS 0
- for(i=0; i+1<length; i+=2){
- if(src[i]) continue;
- if(i>0 && src[i-1]==0) i--;
-#endif
- if(i+2<length && src[i+1]==0 && src[i+2]<=3){
- if(src[i+2]!=3){
- /* startcode, so we must be past the end */
- length=i;
- }
- break;
- }
- i-= RS;
- }
-
- if(i>=length-1){ //no escaped 0
- *dst_length= length;
- *consumed= length+1; //+1 for the header
- return src;
- }
-
- bufidx = h->nal_unit_type == NAL_DPC ? 1 : 0; // use second escape buffer for inter data
- av_fast_malloc(&h->rbsp_buffer[bufidx], &h->rbsp_buffer_size[bufidx], length+FF_INPUT_BUFFER_PADDING_SIZE);
- dst= h->rbsp_buffer[bufidx];
-
- if (dst == NULL){
- return NULL;
- }
-
-//printf("decoding esc\n");
- memcpy(dst, src, i);
- si=di=i;
- while(si+2<length){
- //remove escapes (very rare 1:2^22)
- if(src[si+2]>3){
- dst[di++]= src[si++];
- dst[di++]= src[si++];
- }else if(src[si]==0 && src[si+1]==0){
- if(src[si+2]==3){ //escape
- dst[di++]= 0;
- dst[di++]= 0;
- si+=3;
- continue;
- }else //next start code
- goto nsc;
- }
-
- dst[di++]= src[si++];
- }
- while(si<length)
- dst[di++]= src[si++];
-nsc:
-
- memset(dst+di, 0, FF_INPUT_BUFFER_PADDING_SIZE);
-
- *dst_length= di;
- *consumed= si + 1;//+1 for the header
-//FIXME store exact number of bits in the getbitcontext (it is needed for decoding)
- return dst;
-}
-
-int ff_h264_decode_rbsp_trailing(H264Context *h, const uint8_t *src){
- int v= *src;
- int r;
-
- tprintf(h->s.avctx, "rbsp trailing %X\n", v);
-
- for(r=1; r<9; r++){
- if(v&1) return r;
- v>>=1;
- }
- return 0;
-}
-
-/**
- * IDCT transforms the 16 dc values and dequantizes them.
- * @param qp quantization parameter
- */
-static void h264_luma_dc_dequant_idct_c(DCTELEM *block, int qp, int qmul){
-#define stride 16
- int i;
- int temp[16]; //FIXME check if this is a good idea
- static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};
- static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
-
-//memset(block, 64, 2*256);
-//return;
- for(i=0; i<4; i++){
- const int offset= y_offset[i];
- const int z0= block[offset+stride*0] + block[offset+stride*4];
- const int z1= block[offset+stride*0] - block[offset+stride*4];
- const int z2= block[offset+stride*1] - block[offset+stride*5];
- const int z3= block[offset+stride*1] + block[offset+stride*5];
-
- temp[4*i+0]= z0+z3;
- temp[4*i+1]= z1+z2;
- temp[4*i+2]= z1-z2;
- temp[4*i+3]= z0-z3;
- }
-
- for(i=0; i<4; i++){
- const int offset= x_offset[i];
- const int z0= temp[4*0+i] + temp[4*2+i];
- const int z1= temp[4*0+i] - temp[4*2+i];
- const int z2= temp[4*1+i] - temp[4*3+i];
- const int z3= temp[4*1+i] + temp[4*3+i];
-
- block[stride*0 +offset]= ((((z0 + z3)*qmul + 128 ) >> 8)); //FIXME think about merging this into decode_residual
- block[stride*2 +offset]= ((((z1 + z2)*qmul + 128 ) >> 8));
- block[stride*8 +offset]= ((((z1 - z2)*qmul + 128 ) >> 8));
- block[stride*10+offset]= ((((z0 - z3)*qmul + 128 ) >> 8));
- }
-}
-
-#if 0
-/**
- * DCT transforms the 16 dc values.
- * @param qp quantization parameter ??? FIXME
- */
-static void h264_luma_dc_dct_c(DCTELEM *block/*, int qp*/){
-// const int qmul= dequant_coeff[qp][0];
- int i;
- int temp[16]; //FIXME check if this is a good idea
- static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};
- static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
-
- for(i=0; i<4; i++){
- const int offset= y_offset[i];
- const int z0= block[offset+stride*0] + block[offset+stride*4];
- const int z1= block[offset+stride*0] - block[offset+stride*4];
- const int z2= block[offset+stride*1] - block[offset+stride*5];
- const int z3= block[offset+stride*1] + block[offset+stride*5];
-
- temp[4*i+0]= z0+z3;
- temp[4*i+1]= z1+z2;
- temp[4*i+2]= z1-z2;
- temp[4*i+3]= z0-z3;
- }
-
- for(i=0; i<4; i++){
- const int offset= x_offset[i];
- const int z0= temp[4*0+i] + temp[4*2+i];
- const int z1= temp[4*0+i] - temp[4*2+i];
- const int z2= temp[4*1+i] - temp[4*3+i];
- const int z3= temp[4*1+i] + temp[4*3+i];
-
- block[stride*0 +offset]= (z0 + z3)>>1;
- block[stride*2 +offset]= (z1 + z2)>>1;
- block[stride*8 +offset]= (z1 - z2)>>1;
- block[stride*10+offset]= (z0 - z3)>>1;
- }
-}
-#endif
-
-#undef xStride
-#undef stride
-
-static void chroma_dc_dequant_idct_c(DCTELEM *block, int qp, int qmul){
- const int stride= 16*2;
- const int xStride= 16;
- int a,b,c,d,e;
-
- a= block[stride*0 + xStride*0];
- b= block[stride*0 + xStride*1];
- c= block[stride*1 + xStride*0];
- d= block[stride*1 + xStride*1];
-
- e= a-b;
- a= a+b;
- b= c-d;
- c= c+d;
-
- block[stride*0 + xStride*0]= ((a+c)*qmul) >> 7;
- block[stride*0 + xStride*1]= ((e+b)*qmul) >> 7;
- block[stride*1 + xStride*0]= ((a-c)*qmul) >> 7;
- block[stride*1 + xStride*1]= ((e-b)*qmul) >> 7;
-}
-
-#if 0
-static void chroma_dc_dct_c(DCTELEM *block){
- const int stride= 16*2;
- const int xStride= 16;
- int a,b,c,d,e;
-
- a= block[stride*0 + xStride*0];
- b= block[stride*0 + xStride*1];
- c= block[stride*1 + xStride*0];
- d= block[stride*1 + xStride*1];
-
- e= a-b;
- a= a+b;
- b= c-d;
- c= c+d;
-
- block[stride*0 + xStride*0]= (a+c);
- block[stride*0 + xStride*1]= (e+b);
- block[stride*1 + xStride*0]= (a-c);
- block[stride*1 + xStride*1]= (e-b);
-}
-#endif
-
-static inline void mc_dir_part(H264Context *h, Picture *pic, int n, int square, int chroma_height, int delta, int list,
- uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
- int src_x_offset, int src_y_offset,
- qpel_mc_func *qpix_op, h264_chroma_mc_func chroma_op){
- MpegEncContext * const s = &h->s;
- const int mx= h->mv_cache[list][ scan8[n] ][0] + src_x_offset*8;
- int my= h->mv_cache[list][ scan8[n] ][1] + src_y_offset*8;
- const int luma_xy= (mx&3) + ((my&3)<<2);
- uint8_t * src_y = pic->data[0] + (mx>>2) + (my>>2)*h->mb_linesize;
- uint8_t * src_cb, * src_cr;
- int extra_width= h->emu_edge_width;
- int extra_height= h->emu_edge_height;
- int emu=0;
- const int full_mx= mx>>2;
- const int full_my= my>>2;
- const int pic_width = 16*s->mb_width;
- const int pic_height = 16*s->mb_height >> MB_FIELD;
-
- if(mx&7) extra_width -= 3;
- if(my&7) extra_height -= 3;
-
- if( full_mx < 0-extra_width
- || full_my < 0-extra_height
- || full_mx + 16/*FIXME*/ > pic_width + extra_width
- || full_my + 16/*FIXME*/ > pic_height + extra_height){
- ff_emulated_edge_mc(s->edge_emu_buffer, src_y - 2 - 2*h->mb_linesize, h->mb_linesize, 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height);
- src_y= s->edge_emu_buffer + 2 + 2*h->mb_linesize;
- emu=1;
- }
-
- qpix_op[luma_xy](dest_y, src_y, h->mb_linesize); //FIXME try variable height perhaps?
- if(!square){
- qpix_op[luma_xy](dest_y + delta, src_y + delta, h->mb_linesize);
- }
-
- if(CONFIG_GRAY && s->flags&CODEC_FLAG_GRAY) return;
-
- if(MB_FIELD){
- // chroma offset when predicting from a field of opposite parity
- my += 2 * ((s->mb_y & 1) - (pic->reference - 1));
- emu |= (my>>3) < 0 || (my>>3) + 8 >= (pic_height>>1);
- }
- src_cb= pic->data[1] + (mx>>3) + (my>>3)*h->mb_uvlinesize;
- src_cr= pic->data[2] + (mx>>3) + (my>>3)*h->mb_uvlinesize;
-
- if(emu){
- ff_emulated_edge_mc(s->edge_emu_buffer, src_cb, h->mb_uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), pic_width>>1, pic_height>>1);
- src_cb= s->edge_emu_buffer;
- }
- chroma_op(dest_cb, src_cb, h->mb_uvlinesize, chroma_height, mx&7, my&7);
-
- if(emu){
- ff_emulated_edge_mc(s->edge_emu_buffer, src_cr, h->mb_uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), pic_width>>1, pic_height>>1);
- src_cr= s->edge_emu_buffer;
- }
- chroma_op(dest_cr, src_cr, h->mb_uvlinesize, chroma_height, mx&7, my&7);
-}
-
-static inline void mc_part_std(H264Context *h, int n, int square, int chroma_height, int delta,
- uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
- int x_offset, int y_offset,
- qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
- qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
- int list0, int list1){
- MpegEncContext * const s = &h->s;
- qpel_mc_func *qpix_op= qpix_put;
- h264_chroma_mc_func chroma_op= chroma_put;
-
- dest_y += 2*x_offset + 2*y_offset*h-> mb_linesize;
- dest_cb += x_offset + y_offset*h->mb_uvlinesize;
- dest_cr += x_offset + y_offset*h->mb_uvlinesize;
- x_offset += 8*s->mb_x;
- y_offset += 8*(s->mb_y >> MB_FIELD);
-
- if(list0){
- Picture *ref= &h->ref_list[0][ h->ref_cache[0][ scan8[n] ] ];
- mc_dir_part(h, ref, n, square, chroma_height, delta, 0,
- dest_y, dest_cb, dest_cr, x_offset, y_offset,
- qpix_op, chroma_op);
-
- qpix_op= qpix_avg;
- chroma_op= chroma_avg;
- }
-
- if(list1){
- Picture *ref= &h->ref_list[1][ h->ref_cache[1][ scan8[n] ] ];
- mc_dir_part(h, ref, n, square, chroma_height, delta, 1,
- dest_y, dest_cb, dest_cr, x_offset, y_offset,
- qpix_op, chroma_op);
- }
-}
-
-static inline void mc_part_weighted(H264Context *h, int n, int square, int chroma_height, int delta,
- uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
- int x_offset, int y_offset,
- qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
- h264_weight_func luma_weight_op, h264_weight_func chroma_weight_op,
- h264_biweight_func luma_weight_avg, h264_biweight_func chroma_weight_avg,
- int list0, int list1){
- MpegEncContext * const s = &h->s;
-
- dest_y += 2*x_offset + 2*y_offset*h-> mb_linesize;
- dest_cb += x_offset + y_offset*h->mb_uvlinesize;
- dest_cr += x_offset + y_offset*h->mb_uvlinesize;
- x_offset += 8*s->mb_x;
- y_offset += 8*(s->mb_y >> MB_FIELD);
-
- if(list0 && list1){
- /* don't optimize for luma-only case, since B-frames usually
- * use implicit weights => chroma too. */
- uint8_t *tmp_cb = s->obmc_scratchpad;
- uint8_t *tmp_cr = s->obmc_scratchpad + 8;
- uint8_t *tmp_y = s->obmc_scratchpad + 8*h->mb_uvlinesize;
- int refn0 = h->ref_cache[0][ scan8[n] ];
- int refn1 = h->ref_cache[1][ scan8[n] ];
-
- mc_dir_part(h, &h->ref_list[0][refn0], n, square, chroma_height, delta, 0,
- dest_y, dest_cb, dest_cr,
- x_offset, y_offset, qpix_put, chroma_put);
- mc_dir_part(h, &h->ref_list[1][refn1], n, square, chroma_height, delta, 1,
- tmp_y, tmp_cb, tmp_cr,
- x_offset, y_offset, qpix_put, chroma_put);
-
- if(h->use_weight == 2){
- int weight0 = h->implicit_weight[refn0][refn1];
- int weight1 = 64 - weight0;
- luma_weight_avg( dest_y, tmp_y, h-> mb_linesize, 5, weight0, weight1, 0);
- chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, 5, weight0, weight1, 0);
- chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, 5, weight0, weight1, 0);
- }else{
- luma_weight_avg(dest_y, tmp_y, h->mb_linesize, h->luma_log2_weight_denom,
- h->luma_weight[0][refn0], h->luma_weight[1][refn1],
- h->luma_offset[0][refn0] + h->luma_offset[1][refn1]);
- chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, h->chroma_log2_weight_denom,
- h->chroma_weight[0][refn0][0], h->chroma_weight[1][refn1][0],
- h->chroma_offset[0][refn0][0] + h->chroma_offset[1][refn1][0]);
- chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, h->chroma_log2_weight_denom,
- h->chroma_weight[0][refn0][1], h->chroma_weight[1][refn1][1],
- h->chroma_offset[0][refn0][1] + h->chroma_offset[1][refn1][1]);
- }
- }else{
- int list = list1 ? 1 : 0;
- int refn = h->ref_cache[list][ scan8[n] ];
- Picture *ref= &h->ref_list[list][refn];
- mc_dir_part(h, ref, n, square, chroma_height, delta, list,
- dest_y, dest_cb, dest_cr, x_offset, y_offset,
- qpix_put, chroma_put);
-
- luma_weight_op(dest_y, h->mb_linesize, h->luma_log2_weight_denom,
- h->luma_weight[list][refn], h->luma_offset[list][refn]);
- if(h->use_weight_chroma){
- chroma_weight_op(dest_cb, h->mb_uvlinesize, h->chroma_log2_weight_denom,
- h->chroma_weight[list][refn][0], h->chroma_offset[list][refn][0]);
- chroma_weight_op(dest_cr, h->mb_uvlinesize, h->chroma_log2_weight_denom,
- h->chroma_weight[list][refn][1], h->chroma_offset[list][refn][1]);
- }
- }
-}
-
-static inline void mc_part(H264Context *h, int n, int square, int chroma_height, int delta,
- uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
- int x_offset, int y_offset,
- qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
- qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
- h264_weight_func *weight_op, h264_biweight_func *weight_avg,
- int list0, int list1){
- if((h->use_weight==2 && list0 && list1
- && (h->implicit_weight[ h->ref_cache[0][scan8[n]] ][ h->ref_cache[1][scan8[n]] ] != 32))
- || h->use_weight==1)
- mc_part_weighted(h, n, square, chroma_height, delta, dest_y, dest_cb, dest_cr,
- x_offset, y_offset, qpix_put, chroma_put,
- weight_op[0], weight_op[3], weight_avg[0], weight_avg[3], list0, list1);
- else
- mc_part_std(h, n, square, chroma_height, delta, dest_y, dest_cb, dest_cr,
- x_offset, y_offset, qpix_put, chroma_put, qpix_avg, chroma_avg, list0, list1);
-}
-
-static inline void prefetch_motion(H264Context *h, int list){
- /* fetch pixels for estimated mv 4 macroblocks ahead
- * optimized for 64byte cache lines */
- MpegEncContext * const s = &h->s;
- const int refn = h->ref_cache[list][scan8[0]];
- if(refn >= 0){
- const int mx= (h->mv_cache[list][scan8[0]][0]>>2) + 16*s->mb_x + 8;
- const int my= (h->mv_cache[list][scan8[0]][1]>>2) + 16*s->mb_y;
- uint8_t **src= h->ref_list[list][refn].data;
- int off= mx + (my + (s->mb_x&3)*4)*h->mb_linesize + 64;
- s->dsp.prefetch(src[0]+off, s->linesize, 4);
- off= (mx>>1) + ((my>>1) + (s->mb_x&7))*s->uvlinesize + 64;
- s->dsp.prefetch(src[1]+off, src[2]-src[1], 2);
- }
-}
-
-static void hl_motion(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
- qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
- qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
- h264_weight_func *weight_op, h264_biweight_func *weight_avg){
- MpegEncContext * const s = &h->s;
- const int mb_xy= h->mb_xy;
- const int mb_type= s->current_picture.mb_type[mb_xy];
-
- assert(IS_INTER(mb_type));
-
- prefetch_motion(h, 0);
-
- if(IS_16X16(mb_type)){
- mc_part(h, 0, 1, 8, 0, dest_y, dest_cb, dest_cr, 0, 0,
- qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0],
- &weight_op[0], &weight_avg[0],
- IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
- }else if(IS_16X8(mb_type)){
- mc_part(h, 0, 0, 4, 8, dest_y, dest_cb, dest_cr, 0, 0,
- qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
- &weight_op[1], &weight_avg[1],
- IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
- mc_part(h, 8, 0, 4, 8, dest_y, dest_cb, dest_cr, 0, 4,
- qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
- &weight_op[1], &weight_avg[1],
- IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
- }else if(IS_8X16(mb_type)){
- mc_part(h, 0, 0, 8, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 0, 0,
- qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
- &weight_op[2], &weight_avg[2],
- IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
- mc_part(h, 4, 0, 8, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 4, 0,
- qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
- &weight_op[2], &weight_avg[2],
- IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
- }else{
- int i;
-
- assert(IS_8X8(mb_type));
-
- for(i=0; i<4; i++){
- const int sub_mb_type= h->sub_mb_type[i];
- const int n= 4*i;
- int x_offset= (i&1)<<2;
- int y_offset= (i&2)<<1;
-
- if(IS_SUB_8X8(sub_mb_type)){
- mc_part(h, n, 1, 4, 0, dest_y, dest_cb, dest_cr, x_offset, y_offset,
- qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
- &weight_op[3], &weight_avg[3],
- IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
- }else if(IS_SUB_8X4(sub_mb_type)){
- mc_part(h, n , 0, 2, 4, dest_y, dest_cb, dest_cr, x_offset, y_offset,
- qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
- &weight_op[4], &weight_avg[4],
- IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
- mc_part(h, n+2, 0, 2, 4, dest_y, dest_cb, dest_cr, x_offset, y_offset+2,
- qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
- &weight_op[4], &weight_avg[4],
- IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
- }else if(IS_SUB_4X8(sub_mb_type)){
- mc_part(h, n , 0, 4, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset, y_offset,
- qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
- &weight_op[5], &weight_avg[5],
- IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
- mc_part(h, n+1, 0, 4, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset+2, y_offset,
- qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
- &weight_op[5], &weight_avg[5],
- IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
- }else{
- int j;
- assert(IS_SUB_4X4(sub_mb_type));
- for(j=0; j<4; j++){
- int sub_x_offset= x_offset + 2*(j&1);
- int sub_y_offset= y_offset + (j&2);
- mc_part(h, n+j, 1, 2, 0, dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset,
- qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
- &weight_op[6], &weight_avg[6],
- IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
- }
- }
- }
- }
-
- prefetch_motion(h, 1);
-}
-
-static av_cold void init_cavlc_level_tab(void){
- int suffix_length, mask;
- unsigned int i;
-
- for(suffix_length=0; suffix_length<7; suffix_length++){
- for(i=0; i<(1<<LEVEL_TAB_BITS); i++){
- int prefix= LEVEL_TAB_BITS - av_log2(2*i);
- int level_code= (prefix<<suffix_length) + (i>>(LEVEL_TAB_BITS-prefix-1-suffix_length)) - (1<<suffix_length);
-
- mask= -(level_code&1);
- level_code= (((2+level_code)>>1) ^ mask) - mask;
- if(prefix + 1 + suffix_length <= LEVEL_TAB_BITS){
- cavlc_level_tab[suffix_length][i][0]= level_code;
- cavlc_level_tab[suffix_length][i][1]= prefix + 1 + suffix_length;
- }else if(prefix + 1 <= LEVEL_TAB_BITS){
- cavlc_level_tab[suffix_length][i][0]= prefix+100;
- cavlc_level_tab[suffix_length][i][1]= prefix + 1;
- }else{
- cavlc_level_tab[suffix_length][i][0]= LEVEL_TAB_BITS+100;
- cavlc_level_tab[suffix_length][i][1]= LEVEL_TAB_BITS;
- }
- }
- }
-}
-
-static av_cold void decode_init_vlc(void){
- static int done = 0;
-
- if (!done) {
- int i;
- int offset;
- done = 1;
-
- chroma_dc_coeff_token_vlc.table = chroma_dc_coeff_token_vlc_table;
- chroma_dc_coeff_token_vlc.table_allocated = chroma_dc_coeff_token_vlc_table_size;
- init_vlc(&chroma_dc_coeff_token_vlc, CHROMA_DC_COEFF_TOKEN_VLC_BITS, 4*5,
- &chroma_dc_coeff_token_len [0], 1, 1,
- &chroma_dc_coeff_token_bits[0], 1, 1,
- INIT_VLC_USE_NEW_STATIC);
-
- offset = 0;
- for(i=0; i<4; i++){
- coeff_token_vlc[i].table = coeff_token_vlc_tables+offset;
- coeff_token_vlc[i].table_allocated = coeff_token_vlc_tables_size[i];
- init_vlc(&coeff_token_vlc[i], COEFF_TOKEN_VLC_BITS, 4*17,
- &coeff_token_len [i][0], 1, 1,
- &coeff_token_bits[i][0], 1, 1,
- INIT_VLC_USE_NEW_STATIC);
- offset += coeff_token_vlc_tables_size[i];
- }
- /*
- * This is a one time safety check to make sure that
- * the packed static coeff_token_vlc table sizes
- * were initialized correctly.
- */
- assert(offset == FF_ARRAY_ELEMS(coeff_token_vlc_tables));
-
- for(i=0; i<3; i++){
- chroma_dc_total_zeros_vlc[i].table = chroma_dc_total_zeros_vlc_tables[i];
- chroma_dc_total_zeros_vlc[i].table_allocated = chroma_dc_total_zeros_vlc_tables_size;
- init_vlc(&chroma_dc_total_zeros_vlc[i],
- CHROMA_DC_TOTAL_ZEROS_VLC_BITS, 4,
- &chroma_dc_total_zeros_len [i][0], 1, 1,
- &chroma_dc_total_zeros_bits[i][0], 1, 1,
- INIT_VLC_USE_NEW_STATIC);
- }
- for(i=0; i<15; i++){
- total_zeros_vlc[i].table = total_zeros_vlc_tables[i];
- total_zeros_vlc[i].table_allocated = total_zeros_vlc_tables_size;
- init_vlc(&total_zeros_vlc[i],
- TOTAL_ZEROS_VLC_BITS, 16,
- &total_zeros_len [i][0], 1, 1,
- &total_zeros_bits[i][0], 1, 1,
- INIT_VLC_USE_NEW_STATIC);
- }
-
- for(i=0; i<6; i++){
- run_vlc[i].table = run_vlc_tables[i];
- run_vlc[i].table_allocated = run_vlc_tables_size;
- init_vlc(&run_vlc[i],
- RUN_VLC_BITS, 7,
- &run_len [i][0], 1, 1,
- &run_bits[i][0], 1, 1,
- INIT_VLC_USE_NEW_STATIC);
- }
- run7_vlc.table = run7_vlc_table,
- run7_vlc.table_allocated = run7_vlc_table_size;
- init_vlc(&run7_vlc, RUN7_VLC_BITS, 16,
- &run_len [6][0], 1, 1,
- &run_bits[6][0], 1, 1,
- INIT_VLC_USE_NEW_STATIC);
-
- init_cavlc_level_tab();
- }
-}
-
-static void free_tables(H264Context *h){
- int i;
- H264Context *hx;
- av_freep(&h->intra4x4_pred_mode);
- av_freep(&h->chroma_pred_mode_table);
- av_freep(&h->cbp_table);
- av_freep(&h->mvd_table[0]);
- av_freep(&h->mvd_table[1]);
- av_freep(&h->direct_table);
- av_freep(&h->non_zero_count);
- av_freep(&h->slice_table_base);
- h->slice_table= NULL;
-
- av_freep(&h->mb2b_xy);
- av_freep(&h->mb2b8_xy);
-
- for(i = 0; i < MAX_THREADS; i++) {
- hx = h->thread_context[i];
- if(!hx) continue;
- av_freep(&hx->top_borders[1]);
- av_freep(&hx->top_borders[0]);
- av_freep(&hx->s.obmc_scratchpad);
- av_freep(&hx->rbsp_buffer[1]);
- av_freep(&hx->rbsp_buffer[0]);
- hx->rbsp_buffer_size[0] = 0;
- hx->rbsp_buffer_size[1] = 0;
- if (i) av_freep(&h->thread_context[i]);
- }
-}
-
-static void init_dequant8_coeff_table(H264Context *h){
- int i,q,x;
- const int transpose = (h->s.dsp.h264_idct8_add != ff_h264_idct8_add_c); //FIXME ugly
- h->dequant8_coeff[0] = h->dequant8_buffer[0];
- h->dequant8_coeff[1] = h->dequant8_buffer[1];
-
- for(i=0; i<2; i++ ){
- if(i && !memcmp(h->pps.scaling_matrix8[0], h->pps.scaling_matrix8[1], 64*sizeof(uint8_t))){
- h->dequant8_coeff[1] = h->dequant8_buffer[0];
- break;
- }
-
- for(q=0; q<52; q++){
- int shift = div6[q];
- int idx = rem6[q];
- for(x=0; x<64; x++)
- h->dequant8_coeff[i][q][transpose ? (x>>3)|((x&7)<<3) : x] =
- ((uint32_t)dequant8_coeff_init[idx][ dequant8_coeff_init_scan[((x>>1)&12) | (x&3)] ] *
- h->pps.scaling_matrix8[i][x]) << shift;
- }
- }
-}
-
-static void init_dequant4_coeff_table(H264Context *h){
- int i,j,q,x;
- const int transpose = (h->s.dsp.h264_idct_add != ff_h264_idct_add_c); //FIXME ugly
- for(i=0; i<6; i++ ){
- h->dequant4_coeff[i] = h->dequant4_buffer[i];
- for(j=0; j<i; j++){
- if(!memcmp(h->pps.scaling_matrix4[j], h->pps.scaling_matrix4[i], 16*sizeof(uint8_t))){
- h->dequant4_coeff[i] = h->dequant4_buffer[j];
- break;
- }
- }
- if(j<i)
- continue;
-
- for(q=0; q<52; q++){
- int shift = div6[q] + 2;
- int idx = rem6[q];
- for(x=0; x<16; x++)
- h->dequant4_coeff[i][q][transpose ? (x>>2)|((x<<2)&0xF) : x] =
- ((uint32_t)dequant4_coeff_init[idx][(x&1) + ((x>>2)&1)] *
- h->pps.scaling_matrix4[i][x]) << shift;
- }
- }
-}
-
-static void init_dequant_tables(H264Context *h){
- int i,x;
- init_dequant4_coeff_table(h);
- if(h->pps.transform_8x8_mode)
- init_dequant8_coeff_table(h);
- if(h->sps.transform_bypass){
- for(i=0; i<6; i++)
- for(x=0; x<16; x++)
- h->dequant4_coeff[i][0][x] = 1<<6;
- if(h->pps.transform_8x8_mode)
- for(i=0; i<2; i++)
- for(x=0; x<64; x++)
- h->dequant8_coeff[i][0][x] = 1<<6;
- }
-}
-
-
-int ff_h264_alloc_tables(H264Context *h){
- MpegEncContext * const s = &h->s;
- const int big_mb_num= s->mb_stride * (s->mb_height+1);
- int x,y;
-
- FF_ALLOCZ_OR_GOTO(h->s.avctx, h->intra4x4_pred_mode, big_mb_num * 8 * sizeof(uint8_t), fail)
-
- FF_ALLOCZ_OR_GOTO(h->s.avctx, h->non_zero_count , big_mb_num * 16 * sizeof(uint8_t), fail)
- FF_ALLOCZ_OR_GOTO(h->s.avctx, h->slice_table_base , (big_mb_num+s->mb_stride) * sizeof(*h->slice_table_base), fail)
- FF_ALLOCZ_OR_GOTO(h->s.avctx, h->cbp_table, big_mb_num * sizeof(uint16_t), fail)
-
- FF_ALLOCZ_OR_GOTO(h->s.avctx, h->chroma_pred_mode_table, big_mb_num * sizeof(uint8_t), fail)
- FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mvd_table[0], 32*big_mb_num * sizeof(uint16_t), fail);
- FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mvd_table[1], 32*big_mb_num * sizeof(uint16_t), fail);
- FF_ALLOCZ_OR_GOTO(h->s.avctx, h->direct_table, 32*big_mb_num * sizeof(uint8_t) , fail);
-
- memset(h->slice_table_base, -1, (big_mb_num+s->mb_stride) * sizeof(*h->slice_table_base));
- h->slice_table= h->slice_table_base + s->mb_stride*2 + 1;
-
- FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mb2b_xy , big_mb_num * sizeof(uint32_t), fail);
- FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mb2b8_xy , big_mb_num * sizeof(uint32_t), fail);
- for(y=0; y<s->mb_height; y++){
- for(x=0; x<s->mb_width; x++){
- const int mb_xy= x + y*s->mb_stride;
- const int b_xy = 4*x + 4*y*h->b_stride;
- const int b8_xy= 2*x + 2*y*h->b8_stride;
-
- h->mb2b_xy [mb_xy]= b_xy;
- h->mb2b8_xy[mb_xy]= b8_xy;
- }
- }
-
- s->obmc_scratchpad = NULL;
-
- if(!h->dequant4_coeff[0])
- init_dequant_tables(h);
-
- return 0;
-fail:
- free_tables(h);
- return -1;
-}
-
-/**
- * Mimic alloc_tables(), but for every context thread.
- */
-static void clone_tables(H264Context *dst, H264Context *src){
- dst->intra4x4_pred_mode = src->intra4x4_pred_mode;
- dst->non_zero_count = src->non_zero_count;
- dst->slice_table = src->slice_table;
- dst->cbp_table = src->cbp_table;
- dst->mb2b_xy = src->mb2b_xy;
- dst->mb2b8_xy = src->mb2b8_xy;
- dst->chroma_pred_mode_table = src->chroma_pred_mode_table;
- dst->mvd_table[0] = src->mvd_table[0];
- dst->mvd_table[1] = src->mvd_table[1];
- dst->direct_table = src->direct_table;
-
- dst->s.obmc_scratchpad = NULL;
- ff_h264_pred_init(&dst->hpc, src->s.codec_id);
-}
-
-/**
- * Init context
- * Allocate buffers which are not shared amongst multiple threads.
- */
-static int context_init(H264Context *h){
- FF_ALLOCZ_OR_GOTO(h->s.avctx, h->top_borders[0], h->s.mb_width * (16+8+8) * sizeof(uint8_t), fail)
- FF_ALLOCZ_OR_GOTO(h->s.avctx, h->top_borders[1], h->s.mb_width * (16+8+8) * sizeof(uint8_t), fail)
-
- return 0;
-fail:
- return -1; // free_tables will clean up for us
-}
-
-static av_cold void common_init(H264Context *h){
- MpegEncContext * const s = &h->s;
-
- s->width = s->avctx->width;
- s->height = s->avctx->height;
- s->codec_id= s->avctx->codec->id;
-
- ff_h264_pred_init(&h->hpc, s->codec_id);
-
- h->dequant_coeff_pps= -1;
- s->unrestricted_mv=1;
- s->decode=1; //FIXME
-
- dsputil_init(&s->dsp, s->avctx); // needed so that idct permutation is known early
-
- memset(h->pps.scaling_matrix4, 16, 6*16*sizeof(uint8_t));
- memset(h->pps.scaling_matrix8, 16, 2*64*sizeof(uint8_t));
-}
-
-/**
- * Reset SEI values at the beginning of the frame.
- *
- * @param h H.264 context.
- */
-static void reset_sei(H264Context *h) {
+void ff_h264_reset_sei(H264Context *h) {
h->sei_recovery_frame_cnt = -1;
h->sei_dpb_output_delay = 0;
h->sei_cpb_removal_delay = -1;
h->sei_buffering_period_present = 0;
}
-av_cold int ff_h264_decode_init(AVCodecContext *avctx){
- H264Context *h= avctx->priv_data;
- MpegEncContext * const s = &h->s;
-
- MPV_decode_defaults(s);
-
- s->avctx = avctx;
- common_init(h);
-
- s->out_format = FMT_H264;
- s->workaround_bugs= avctx->workaround_bugs;
-
- // set defaults
-// s->decode_mb= ff_h263_decode_mb;
- s->quarter_sample = 1;
- if(!avctx->has_b_frames)
- s->low_delay= 1;
-
- avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
-
- decode_init_vlc();
-
- if(avctx->extradata_size > 0 && avctx->extradata &&
- *(char *)avctx->extradata == 1){
- h->is_avc = 1;
- h->got_avcC = 0;
- } else {
- h->is_avc = 0;
- }
-
- h->thread_context[0] = h;
- h->outputed_poc = INT_MIN;
- h->prev_poc_msb= 1<<16;
- reset_sei(h);
- if(avctx->codec_id == CODEC_ID_H264){
- if(avctx->ticks_per_frame == 1){
- s->avctx->time_base.den *=2;
- }
- avctx->ticks_per_frame = 2;
- }
- return 0;
-}
-
-int ff_h264_frame_start(H264Context *h){
- MpegEncContext * const s = &h->s;
- int i;
-
- if(MPV_frame_start(s, s->avctx) < 0)
- return -1;
- ff_er_frame_start(s);
- /*
- * MPV_frame_start uses pict_type to derive key_frame.
- * This is incorrect for H.264; IDR markings must be used.
- * Zero here; IDR markings per slice in frame or fields are ORed in later.
- * See decode_nal_units().
- */
- s->current_picture_ptr->key_frame= 0;
- s->current_picture_ptr->mmco_reset= 0;
-
- assert(s->linesize && s->uvlinesize);
-
- for(i=0; i<16; i++){
- h->block_offset[i]= 4*((scan8[i] - scan8[0])&7) + 4*s->linesize*((scan8[i] - scan8[0])>>3);
- h->block_offset[24+i]= 4*((scan8[i] - scan8[0])&7) + 8*s->linesize*((scan8[i] - scan8[0])>>3);
- }
- for(i=0; i<4; i++){
- h->block_offset[16+i]=
- h->block_offset[20+i]= 4*((scan8[i] - scan8[0])&7) + 4*s->uvlinesize*((scan8[i] - scan8[0])>>3);
- h->block_offset[24+16+i]=
- h->block_offset[24+20+i]= 4*((scan8[i] - scan8[0])&7) + 8*s->uvlinesize*((scan8[i] - scan8[0])>>3);
- }
-
- /* can't be in alloc_tables because linesize isn't known there.
- * FIXME: redo bipred weight to not require extra buffer? */
- for(i = 0; i < s->avctx->thread_count; i++)
- if(!h->thread_context[i]->s.obmc_scratchpad)
- h->thread_context[i]->s.obmc_scratchpad = av_malloc(16*2*s->linesize + 8*2*s->uvlinesize);
-
- /* some macroblocks will be accessed before they're available */
- if(FRAME_MBAFF || s->avctx->thread_count > 1)
- memset(h->slice_table, -1, (s->mb_height*s->mb_stride-1) * sizeof(*h->slice_table));
-
-// s->decode= (s->flags&CODEC_FLAG_PSNR) || !s->encoding || s->current_picture.reference /*|| h->contains_intra*/ || 1;
-
- // We mark the current picture as non-reference after allocating it, so
- // that if we break out due to an error it can be released automatically
- // in the next MPV_frame_start().
- // SVQ3 as well as most other codecs have only last/next/current and thus
- // get released even with set reference, besides SVQ3 and others do not
- // mark frames as reference later "naturally".
- if(s->codec_id != CODEC_ID_SVQ3)
- s->current_picture_ptr->reference= 0;
-
- s->current_picture_ptr->field_poc[0]=
- s->current_picture_ptr->field_poc[1]= INT_MAX;
- assert(s->current_picture_ptr->long_ref==0);
-
- return 0;
-}
-
-static inline void backup_mb_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize, int simple){
- MpegEncContext * const s = &h->s;
- int i;
- int step = 1;
- int offset = 1;
- int uvoffset= 1;
- int top_idx = 1;
- int skiplast= 0;
-
- src_y -= linesize;
- src_cb -= uvlinesize;
- src_cr -= uvlinesize;
-
- if(!simple && FRAME_MBAFF){
- if(s->mb_y&1){
- offset = MB_MBAFF ? 1 : 17;
- uvoffset= MB_MBAFF ? 1 : 9;
- if(!MB_MBAFF){
- *(uint64_t*)(h->top_borders[0][s->mb_x]+ 0)= *(uint64_t*)(src_y + 15*linesize);
- *(uint64_t*)(h->top_borders[0][s->mb_x]+ 8)= *(uint64_t*)(src_y +8+15*linesize);
- if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
- *(uint64_t*)(h->top_borders[0][s->mb_x]+16)= *(uint64_t*)(src_cb+7*uvlinesize);
- *(uint64_t*)(h->top_borders[0][s->mb_x]+24)= *(uint64_t*)(src_cr+7*uvlinesize);
- }
- }
- }else{
- if(!MB_MBAFF){
- h->left_border[0]= h->top_borders[0][s->mb_x][15];
- if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
- h->left_border[34 ]= h->top_borders[0][s->mb_x][16+7 ];
- h->left_border[34+18]= h->top_borders[0][s->mb_x][16+8+7];
- }
- skiplast= 1;
- }
- offset =
- uvoffset=
- top_idx = MB_MBAFF ? 0 : 1;
- }
- step= MB_MBAFF ? 2 : 1;
- }
-
- // There are two lines saved, the line above the the top macroblock of a pair,
- // and the line above the bottom macroblock
- h->left_border[offset]= h->top_borders[top_idx][s->mb_x][15];
- for(i=1; i<17 - skiplast; i++){
- h->left_border[offset+i*step]= src_y[15+i* linesize];
- }
-
- *(uint64_t*)(h->top_borders[top_idx][s->mb_x]+0)= *(uint64_t*)(src_y + 16*linesize);
- *(uint64_t*)(h->top_borders[top_idx][s->mb_x]+8)= *(uint64_t*)(src_y +8+16*linesize);
-
- if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
- h->left_border[uvoffset+34 ]= h->top_borders[top_idx][s->mb_x][16+7];
- h->left_border[uvoffset+34+18]= h->top_borders[top_idx][s->mb_x][24+7];
- for(i=1; i<9 - skiplast; i++){
- h->left_border[uvoffset+34 +i*step]= src_cb[7+i*uvlinesize];
- h->left_border[uvoffset+34+18+i*step]= src_cr[7+i*uvlinesize];
- }
- *(uint64_t*)(h->top_borders[top_idx][s->mb_x]+16)= *(uint64_t*)(src_cb+8*uvlinesize);
- *(uint64_t*)(h->top_borders[top_idx][s->mb_x]+24)= *(uint64_t*)(src_cr+8*uvlinesize);
- }
-}
-
-static inline void xchg_mb_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize, int xchg, int simple){
- MpegEncContext * const s = &h->s;
- int temp8, i;
- uint64_t temp64;
- int deblock_left;
- int deblock_top;
- int mb_xy;
- int step = 1;
- int offset = 1;
- int uvoffset= 1;
- int top_idx = 1;
-
- if(!simple && FRAME_MBAFF){
- if(s->mb_y&1){
- offset = MB_MBAFF ? 1 : 17;
- uvoffset= MB_MBAFF ? 1 : 9;
- }else{
- offset =
- uvoffset=
- top_idx = MB_MBAFF ? 0 : 1;
- }
- step= MB_MBAFF ? 2 : 1;
- }
-
- if(h->deblocking_filter == 2) {
- mb_xy = h->mb_xy;
- deblock_left = h->slice_table[mb_xy] == h->slice_table[mb_xy - 1];
- deblock_top = h->slice_table[mb_xy] == h->slice_table[h->top_mb_xy];
- } else {
- deblock_left = (s->mb_x > 0);
- deblock_top = (s->mb_y > !!MB_FIELD);
- }
-
- src_y -= linesize + 1;
- src_cb -= uvlinesize + 1;
- src_cr -= uvlinesize + 1;
-
-#define XCHG(a,b,t,xchg)\
-t= a;\
-if(xchg)\
- a= b;\
-b= t;
-
- if(deblock_left){
- for(i = !deblock_top; i<16; i++){
- XCHG(h->left_border[offset+i*step], src_y [i* linesize], temp8, xchg);
- }
- XCHG(h->left_border[offset+i*step], src_y [i* linesize], temp8, 1);
- }
-
- if(deblock_top){
- XCHG(*(uint64_t*)(h->top_borders[top_idx][s->mb_x]+0), *(uint64_t*)(src_y +1), temp64, xchg);
- XCHG(*(uint64_t*)(h->top_borders[top_idx][s->mb_x]+8), *(uint64_t*)(src_y +9), temp64, 1);
- if(s->mb_x+1 < s->mb_width){
- XCHG(*(uint64_t*)(h->top_borders[top_idx][s->mb_x+1]), *(uint64_t*)(src_y +17), temp64, 1);
- }
- }
-
- if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
- if(deblock_left){
- for(i = !deblock_top; i<8; i++){
- XCHG(h->left_border[uvoffset+34 +i*step], src_cb[i*uvlinesize], temp8, xchg);
- XCHG(h->left_border[uvoffset+34+18+i*step], src_cr[i*uvlinesize], temp8, xchg);
- }
- XCHG(h->left_border[uvoffset+34 +i*step], src_cb[i*uvlinesize], temp8, 1);
- XCHG(h->left_border[uvoffset+34+18+i*step], src_cr[i*uvlinesize], temp8, 1);
- }
- if(deblock_top){
- XCHG(*(uint64_t*)(h->top_borders[top_idx][s->mb_x]+16), *(uint64_t*)(src_cb+1), temp64, 1);
- XCHG(*(uint64_t*)(h->top_borders[top_idx][s->mb_x]+24), *(uint64_t*)(src_cr+1), temp64, 1);
- }
- }
-}
-
-static av_always_inline void hl_decode_mb_internal(H264Context *h, int simple){
- MpegEncContext * const s = &h->s;
- const int mb_x= s->mb_x;
- const int mb_y= s->mb_y;
- const int mb_xy= h->mb_xy;
- const int mb_type= s->current_picture.mb_type[mb_xy];
- uint8_t *dest_y, *dest_cb, *dest_cr;
- int linesize, uvlinesize /*dct_offset*/;
- int i;
- int *block_offset = &h->block_offset[0];
- const int transform_bypass = !simple && (s->qscale == 0 && h->sps.transform_bypass);
- /* is_h264 should always be true if SVQ3 is disabled. */
- const int is_h264 = !CONFIG_SVQ3_DECODER || simple || s->codec_id == CODEC_ID_H264;
- void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride);
- void (*idct_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
-
- dest_y = s->current_picture.data[0] + (mb_x + mb_y * s->linesize ) * 16;
- dest_cb = s->current_picture.data[1] + (mb_x + mb_y * s->uvlinesize) * 8;
- dest_cr = s->current_picture.data[2] + (mb_x + mb_y * s->uvlinesize) * 8;
-
- s->dsp.prefetch(dest_y + (s->mb_x&3)*4*s->linesize + 64, s->linesize, 4);
- s->dsp.prefetch(dest_cb + (s->mb_x&7)*s->uvlinesize + 64, dest_cr - dest_cb, 2);
-
- if (!simple && MB_FIELD) {
- linesize = h->mb_linesize = s->linesize * 2;
- uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2;
- block_offset = &h->block_offset[24];
- if(mb_y&1){ //FIXME move out of this function?
- dest_y -= s->linesize*15;
- dest_cb-= s->uvlinesize*7;
- dest_cr-= s->uvlinesize*7;
- }
- if(FRAME_MBAFF) {
- int list;
- for(list=0; list<h->list_count; list++){
- if(!USES_LIST(mb_type, list))
- continue;
- if(IS_16X16(mb_type)){
- int8_t *ref = &h->ref_cache[list][scan8[0]];
- fill_rectangle(ref, 4, 4, 8, (16+*ref)^(s->mb_y&1), 1);
- }else{
- for(i=0; i<16; i+=4){
- int ref = h->ref_cache[list][scan8[i]];
- if(ref >= 0)
- fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, 8, (16+ref)^(s->mb_y&1), 1);
- }
- }
- }
- }
- } else {
- linesize = h->mb_linesize = s->linesize;
- uvlinesize = h->mb_uvlinesize = s->uvlinesize;
-// dct_offset = s->linesize * 16;
- }
-
- if (!simple && IS_INTRA_PCM(mb_type)) {
- for (i=0; i<16; i++) {
- memcpy(dest_y + i* linesize, h->mb + i*8, 16);
- }
- for (i=0; i<8; i++) {
- memcpy(dest_cb+ i*uvlinesize, h->mb + 128 + i*4, 8);
- memcpy(dest_cr+ i*uvlinesize, h->mb + 160 + i*4, 8);
- }
- } else {
- if(IS_INTRA(mb_type)){
- if(h->deblocking_filter)
- xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 1, simple);
-
- if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
- h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cb, uvlinesize);
- h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cr, uvlinesize);
- }
-
- if(IS_INTRA4x4(mb_type)){
- if(simple || !s->encoding){
- if(IS_8x8DCT(mb_type)){
- if(transform_bypass){
- idct_dc_add =
- idct_add = s->dsp.add_pixels8;
- }else{
- idct_dc_add = s->dsp.h264_idct8_dc_add;
- idct_add = s->dsp.h264_idct8_add;
- }
- for(i=0; i<16; i+=4){
- uint8_t * const ptr= dest_y + block_offset[i];
- const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];
- if(transform_bypass && h->sps.profile_idc==244 && dir<=1){
- h->hpc.pred8x8l_add[dir](ptr, h->mb + i*16, linesize);
- }else{
- const int nnz = h->non_zero_count_cache[ scan8[i] ];
- h->hpc.pred8x8l[ dir ](ptr, (h->topleft_samples_available<<i)&0x8000,
- (h->topright_samples_available<<i)&0x4000, linesize);
- if(nnz){
- if(nnz == 1 && h->mb[i*16])
- idct_dc_add(ptr, h->mb + i*16, linesize);
- else
- idct_add (ptr, h->mb + i*16, linesize);
- }
- }
- }
- }else{
- if(transform_bypass){
- idct_dc_add =
- idct_add = s->dsp.add_pixels4;
- }else{
- idct_dc_add = s->dsp.h264_idct_dc_add;
- idct_add = s->dsp.h264_idct_add;
- }
- for(i=0; i<16; i++){
- uint8_t * const ptr= dest_y + block_offset[i];
- const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];
-
- if(transform_bypass && h->sps.profile_idc==244 && dir<=1){
- h->hpc.pred4x4_add[dir](ptr, h->mb + i*16, linesize);
- }else{
- uint8_t *topright;
- int nnz, tr;
- if(dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED){
- const int topright_avail= (h->topright_samples_available<<i)&0x8000;
- assert(mb_y || linesize <= block_offset[i]);
- if(!topright_avail){
- tr= ptr[3 - linesize]*0x01010101;
- topright= (uint8_t*) &tr;
- }else
- topright= ptr + 4 - linesize;
- }else
- topright= NULL;
-
- h->hpc.pred4x4[ dir ](ptr, topright, linesize);
- nnz = h->non_zero_count_cache[ scan8[i] ];
- if(nnz){
- if(is_h264){
- if(nnz == 1 && h->mb[i*16])
- idct_dc_add(ptr, h->mb + i*16, linesize);
- else
- idct_add (ptr, h->mb + i*16, linesize);
- }else
- svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, 0);
- }
- }
- }
- }
- }
- }else{
- h->hpc.pred16x16[ h->intra16x16_pred_mode ](dest_y , linesize);
- if(is_h264){
- if(!transform_bypass)
- h264_luma_dc_dequant_idct_c(h->mb, s->qscale, h->dequant4_coeff[0][s->qscale][0]);
- }else
- svq3_luma_dc_dequant_idct_c(h->mb, s->qscale);
- }
- if(h->deblocking_filter)
- xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0, simple);
- }else if(is_h264){
- hl_motion(h, dest_y, dest_cb, dest_cr,
- s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
- s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
- s->dsp.weight_h264_pixels_tab, s->dsp.biweight_h264_pixels_tab);
- }
-
-
- if(!IS_INTRA4x4(mb_type)){
- if(is_h264){
- if(IS_INTRA16x16(mb_type)){
- if(transform_bypass){
- if(h->sps.profile_idc==244 && (h->intra16x16_pred_mode==VERT_PRED8x8 || h->intra16x16_pred_mode==HOR_PRED8x8)){
- h->hpc.pred16x16_add[h->intra16x16_pred_mode](dest_y, block_offset, h->mb, linesize);
- }else{
- for(i=0; i<16; i++){
- if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16])
- s->dsp.add_pixels4(dest_y + block_offset[i], h->mb + i*16, linesize);
- }
- }
- }else{
- s->dsp.h264_idct_add16intra(dest_y, block_offset, h->mb, linesize, h->non_zero_count_cache);
- }
- }else if(h->cbp&15){
- if(transform_bypass){
- const int di = IS_8x8DCT(mb_type) ? 4 : 1;
- idct_add= IS_8x8DCT(mb_type) ? s->dsp.add_pixels8 : s->dsp.add_pixels4;
- for(i=0; i<16; i+=di){
- if(h->non_zero_count_cache[ scan8[i] ]){
- idct_add(dest_y + block_offset[i], h->mb + i*16, linesize);
- }
- }
- }else{
- if(IS_8x8DCT(mb_type)){
- s->dsp.h264_idct8_add4(dest_y, block_offset, h->mb, linesize, h->non_zero_count_cache);
- }else{
- s->dsp.h264_idct_add16(dest_y, block_offset, h->mb, linesize, h->non_zero_count_cache);
- }
- }
- }
- }else{
- for(i=0; i<16; i++){
- if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ //FIXME benchmark weird rule, & below
- uint8_t * const ptr= dest_y + block_offset[i];
- svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, IS_INTRA(mb_type) ? 1 : 0);
- }
- }
- }
- }
-
- if((simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)) && (h->cbp&0x30)){
- uint8_t *dest[2] = {dest_cb, dest_cr};
- if(transform_bypass){
- if(IS_INTRA(mb_type) && h->sps.profile_idc==244 && (h->chroma_pred_mode==VERT_PRED8x8 || h->chroma_pred_mode==HOR_PRED8x8)){
- h->hpc.pred8x8_add[h->chroma_pred_mode](dest[0], block_offset + 16, h->mb + 16*16, uvlinesize);
- h->hpc.pred8x8_add[h->chroma_pred_mode](dest[1], block_offset + 20, h->mb + 20*16, uvlinesize);
- }else{
- idct_add = s->dsp.add_pixels4;
- for(i=16; i<16+8; i++){
- if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16])
- idct_add (dest[(i&4)>>2] + block_offset[i], h->mb + i*16, uvlinesize);
- }
- }
- }else{
- chroma_dc_dequant_idct_c(h->mb + 16*16, h->chroma_qp[0], h->dequant4_coeff[IS_INTRA(mb_type) ? 1:4][h->chroma_qp[0]][0]);
- chroma_dc_dequant_idct_c(h->mb + 16*16+4*16, h->chroma_qp[1], h->dequant4_coeff[IS_INTRA(mb_type) ? 2:5][h->chroma_qp[1]][0]);
- if(is_h264){
- idct_add = s->dsp.h264_idct_add;
- idct_dc_add = s->dsp.h264_idct_dc_add;
- for(i=16; i<16+8; i++){
- if(h->non_zero_count_cache[ scan8[i] ])
- idct_add (dest[(i&4)>>2] + block_offset[i], h->mb + i*16, uvlinesize);
- else if(h->mb[i*16])
- idct_dc_add(dest[(i&4)>>2] + block_offset[i], h->mb + i*16, uvlinesize);
- }
- }else{
- for(i=16; i<16+8; i++){
- if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
- uint8_t * const ptr= dest[(i&4)>>2] + block_offset[i];
- svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, chroma_qp[s->qscale + 12] - 12, 2);
- }
- }
- }
- }
- }
- }
- if(h->cbp || IS_INTRA(mb_type))
- s->dsp.clear_blocks(h->mb);
-
- if(h->deblocking_filter) {
- backup_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, simple);
- fill_caches(h, mb_type, 1); //FIXME don't fill stuff which isn't used by filter_mb
- h->chroma_qp[0] = get_chroma_qp(h, 0, s->current_picture.qscale_table[mb_xy]);
- h->chroma_qp[1] = get_chroma_qp(h, 1, s->current_picture.qscale_table[mb_xy]);
- if (!simple && FRAME_MBAFF) {
- ff_h264_filter_mb (h, mb_x, mb_y, dest_y, dest_cb, dest_cr, linesize, uvlinesize);
- } else {
- ff_h264_filter_mb_fast(h, mb_x, mb_y, dest_y, dest_cb, dest_cr, linesize, uvlinesize);
- }
- }
-}
-
-/**
- * Process a macroblock; this case avoids checks for expensive uncommon cases.
- */
-static void hl_decode_mb_simple(H264Context *h){
- hl_decode_mb_internal(h, 1);
-}
-
-/**
- * Process a macroblock; this handles edge cases, such as interlacing.
- */
-static void av_noinline hl_decode_mb_complex(H264Context *h){
- hl_decode_mb_internal(h, 0);
-}
-
-void ff_h264_hl_decode_mb(H264Context *h){
- MpegEncContext * const s = &h->s;
- const int mb_xy= h->mb_xy;
- const int mb_type= s->current_picture.mb_type[mb_xy];
- int is_complex = CONFIG_SMALL || h->is_complex || IS_INTRA_PCM(mb_type) || s->qscale == 0;
-
- if (is_complex)
- hl_decode_mb_complex(h);
- else hl_decode_mb_simple(h);
-}
-
-static void pic_as_field(Picture *pic, const int parity){
- int i;
- for (i = 0; i < 4; ++i) {
- if (parity == PICT_BOTTOM_FIELD)
- pic->data[i] += pic->linesize[i];
- pic->reference = parity;
- pic->linesize[i] *= 2;
- }
- pic->poc= pic->field_poc[parity == PICT_BOTTOM_FIELD];
-}
-
-static int split_field_copy(Picture *dest, Picture *src,
- int parity, int id_add){
- int match = !!(src->reference & parity);
-
- if (match) {
- *dest = *src;
- if(parity != PICT_FRAME){
- pic_as_field(dest, parity);
- dest->pic_id *= 2;
- dest->pic_id += id_add;
- }
- }
-
- return match;
-}
-
-static int build_def_list(Picture *def, Picture **in, int len, int is_long, int sel){
- int i[2]={0};
- int index=0;
-
- while(i[0]<len || i[1]<len){
- while(i[0]<len && !(in[ i[0] ] && (in[ i[0] ]->reference & sel)))
- i[0]++;
- while(i[1]<len && !(in[ i[1] ] && (in[ i[1] ]->reference & (sel^3))))
- i[1]++;
- if(i[0] < len){
- in[ i[0] ]->pic_id= is_long ? i[0] : in[ i[0] ]->frame_num;
- split_field_copy(&def[index++], in[ i[0]++ ], sel , 1);
- }
- if(i[1] < len){
- in[ i[1] ]->pic_id= is_long ? i[1] : in[ i[1] ]->frame_num;
- split_field_copy(&def[index++], in[ i[1]++ ], sel^3, 0);
- }
- }
-
- return index;
-}
-
-static int add_sorted(Picture **sorted, Picture **src, int len, int limit, int dir){
- int i, best_poc;
- int out_i= 0;
-
- for(;;){
- best_poc= dir ? INT_MIN : INT_MAX;
-
- for(i=0; i<len; i++){
- const int poc= src[i]->poc;
- if(((poc > limit) ^ dir) && ((poc < best_poc) ^ dir)){
- best_poc= poc;
- sorted[out_i]= src[i];
- }
- }
- if(best_poc == (dir ? INT_MIN : INT_MAX))
- break;
- limit= sorted[out_i++]->poc - dir;
- }
- return out_i;
-}
-
-/**
- * fills the default_ref_list.
- */
-static int fill_default_ref_list(H264Context *h){
- MpegEncContext * const s = &h->s;
- int i, len;
-
- if(h->slice_type_nos==FF_B_TYPE){
- Picture *sorted[32];
- int cur_poc, list;
- int lens[2];
-
- if(FIELD_PICTURE)
- cur_poc= s->current_picture_ptr->field_poc[ s->picture_structure == PICT_BOTTOM_FIELD ];
- else
- cur_poc= s->current_picture_ptr->poc;
-
- for(list= 0; list<2; list++){
- len= add_sorted(sorted , h->short_ref, h->short_ref_count, cur_poc, 1^list);
- len+=add_sorted(sorted+len, h->short_ref, h->short_ref_count, cur_poc, 0^list);
- assert(len<=32);
- len= build_def_list(h->default_ref_list[list] , sorted , len, 0, s->picture_structure);
- len+=build_def_list(h->default_ref_list[list]+len, h->long_ref, 16 , 1, s->picture_structure);
- assert(len<=32);
-
- if(len < h->ref_count[list])
- memset(&h->default_ref_list[list][len], 0, sizeof(Picture)*(h->ref_count[list] - len));
- lens[list]= len;
- }
-
- if(lens[0] == lens[1] && lens[1] > 1){
- for(i=0; h->default_ref_list[0][i].data[0] == h->default_ref_list[1][i].data[0] && i<lens[0]; i++);
- if(i == lens[0])
- FFSWAP(Picture, h->default_ref_list[1][0], h->default_ref_list[1][1]);
- }
- }else{
- len = build_def_list(h->default_ref_list[0] , h->short_ref, h->short_ref_count, 0, s->picture_structure);
- len+= build_def_list(h->default_ref_list[0]+len, h-> long_ref, 16 , 1, s->picture_structure);
- assert(len <= 32);
- if(len < h->ref_count[0])
- memset(&h->default_ref_list[0][len], 0, sizeof(Picture)*(h->ref_count[0] - len));
- }
-#ifdef TRACE
- for (i=0; i<h->ref_count[0]; i++) {
- tprintf(h->s.avctx, "List0: %s fn:%d 0x%p\n", (h->default_ref_list[0][i].long_ref ? "LT" : "ST"), h->default_ref_list[0][i].pic_id, h->default_ref_list[0][i].data[0]);
- }
- if(h->slice_type_nos==FF_B_TYPE){
- for (i=0; i<h->ref_count[1]; i++) {
- tprintf(h->s.avctx, "List1: %s fn:%d 0x%p\n", (h->default_ref_list[1][i].long_ref ? "LT" : "ST"), h->default_ref_list[1][i].pic_id, h->default_ref_list[1][i].data[0]);
- }
- }
-#endif
- return 0;
-}
-
-static void print_short_term(H264Context *h);
-static void print_long_term(H264Context *h);
-
-/**
- * Extract structure information about the picture described by pic_num in
- * the current decoding context (frame or field). Note that pic_num is
- * picture number without wrapping (so, 0<=pic_num<max_pic_num).
- * @param pic_num picture number for which to extract structure information
- * @param structure one of PICT_XXX describing structure of picture
- * with pic_num
- * @return frame number (short term) or long term index of picture
- * described by pic_num
- */
-static int pic_num_extract(H264Context *h, int pic_num, int *structure){
- MpegEncContext * const s = &h->s;
-
- *structure = s->picture_structure;
- if(FIELD_PICTURE){
- if (!(pic_num & 1))
- /* opposite field */
- *structure ^= PICT_FRAME;
- pic_num >>= 1;
- }
-
- return pic_num;
-}
-
-static int decode_ref_pic_list_reordering(H264Context *h){
- MpegEncContext * const s = &h->s;
- int list, index, pic_structure;
-
- print_short_term(h);
- print_long_term(h);
-
- for(list=0; list<h->list_count; list++){
- memcpy(h->ref_list[list], h->default_ref_list[list], sizeof(Picture)*h->ref_count[list]);
-
- if(get_bits1(&s->gb)){
- int pred= h->curr_pic_num;
-
- for(index=0; ; index++){
- unsigned int reordering_of_pic_nums_idc= get_ue_golomb_31(&s->gb);
- unsigned int pic_id;
- int i;
- Picture *ref = NULL;
-
- if(reordering_of_pic_nums_idc==3)
- break;
-
- if(index >= h->ref_count[list]){
- av_log(h->s.avctx, AV_LOG_ERROR, "reference count overflow\n");
- return -1;
- }
-
- if(reordering_of_pic_nums_idc<3){
- if(reordering_of_pic_nums_idc<2){
- const unsigned int abs_diff_pic_num= get_ue_golomb(&s->gb) + 1;
- int frame_num;
-
- if(abs_diff_pic_num > h->max_pic_num){
- av_log(h->s.avctx, AV_LOG_ERROR, "abs_diff_pic_num overflow\n");
- return -1;
- }
-
- if(reordering_of_pic_nums_idc == 0) pred-= abs_diff_pic_num;
- else pred+= abs_diff_pic_num;
- pred &= h->max_pic_num - 1;
-
- frame_num = pic_num_extract(h, pred, &pic_structure);
-
- for(i= h->short_ref_count-1; i>=0; i--){
- ref = h->short_ref[i];
- assert(ref->reference);
- assert(!ref->long_ref);
- if(
- ref->frame_num == frame_num &&
- (ref->reference & pic_structure)
- )
- break;
- }
- if(i>=0)
- ref->pic_id= pred;
- }else{
- int long_idx;
- pic_id= get_ue_golomb(&s->gb); //long_term_pic_idx
-
- long_idx= pic_num_extract(h, pic_id, &pic_structure);
-
- if(long_idx>31){
- av_log(h->s.avctx, AV_LOG_ERROR, "long_term_pic_idx overflow\n");
- return -1;
- }
- ref = h->long_ref[long_idx];
- assert(!(ref && !ref->reference));
- if(ref && (ref->reference & pic_structure)){
- ref->pic_id= pic_id;
- assert(ref->long_ref);
- i=0;
- }else{
- i=-1;
- }
- }
-
- if (i < 0) {
- av_log(h->s.avctx, AV_LOG_ERROR, "reference picture missing during reorder\n");
- memset(&h->ref_list[list][index], 0, sizeof(Picture)); //FIXME
- } else {
- for(i=index; i+1<h->ref_count[list]; i++){
- if(ref->long_ref == h->ref_list[list][i].long_ref && ref->pic_id == h->ref_list[list][i].pic_id)
- break;
- }
- for(; i > index; i--){
- h->ref_list[list][i]= h->ref_list[list][i-1];
- }
- h->ref_list[list][index]= *ref;
- if (FIELD_PICTURE){
- pic_as_field(&h->ref_list[list][index], pic_structure);
- }
- }
- }else{
- av_log(h->s.avctx, AV_LOG_ERROR, "illegal reordering_of_pic_nums_idc\n");
- return -1;
- }
- }
- }
- }
- for(list=0; list<h->list_count; list++){
- for(index= 0; index < h->ref_count[list]; index++){
- if(!h->ref_list[list][index].data[0]){
- av_log(h->s.avctx, AV_LOG_ERROR, "Missing reference picture\n");
- if(h->default_ref_list[list][0].data[0])
- h->ref_list[list][index]= h->default_ref_list[list][0];
- else
- return -1;
- }
- }
- }
-
- return 0;
-}
-
-static void fill_mbaff_ref_list(H264Context *h){
- int list, i, j;
- for(list=0; list<2; list++){ //FIXME try list_count
- for(i=0; i<h->ref_count[list]; i++){
- Picture *frame = &h->ref_list[list][i];
- Picture *field = &h->ref_list[list][16+2*i];
- field[0] = *frame;
- for(j=0; j<3; j++)
- field[0].linesize[j] <<= 1;
- field[0].reference = PICT_TOP_FIELD;
- field[0].poc= field[0].field_poc[0];
- field[1] = field[0];
- for(j=0; j<3; j++)
- field[1].data[j] += frame->linesize[j];
- field[1].reference = PICT_BOTTOM_FIELD;
- field[1].poc= field[1].field_poc[1];
-
- h->luma_weight[list][16+2*i] = h->luma_weight[list][16+2*i+1] = h->luma_weight[list][i];
- h->luma_offset[list][16+2*i] = h->luma_offset[list][16+2*i+1] = h->luma_offset[list][i];
- for(j=0; j<2; j++){
- h->chroma_weight[list][16+2*i][j] = h->chroma_weight[list][16+2*i+1][j] = h->chroma_weight[list][i][j];
- h->chroma_offset[list][16+2*i][j] = h->chroma_offset[list][16+2*i+1][j] = h->chroma_offset[list][i][j];
- }
- }
- }
- for(j=0; j<h->ref_count[1]; j++){
- for(i=0; i<h->ref_count[0]; i++)
- h->implicit_weight[j][16+2*i] = h->implicit_weight[j][16+2*i+1] = h->implicit_weight[j][i];
- memcpy(h->implicit_weight[16+2*j], h->implicit_weight[j], sizeof(*h->implicit_weight));
- memcpy(h->implicit_weight[16+2*j+1], h->implicit_weight[j], sizeof(*h->implicit_weight));
- }
-}
-
-static int pred_weight_table(H264Context *h){
- MpegEncContext * const s = &h->s;
- int list, i;
- int luma_def, chroma_def;
-
- h->use_weight= 0;
- h->use_weight_chroma= 0;
- h->luma_log2_weight_denom= get_ue_golomb(&s->gb);
- h->chroma_log2_weight_denom= get_ue_golomb(&s->gb);
- luma_def = 1<<h->luma_log2_weight_denom;
- chroma_def = 1<<h->chroma_log2_weight_denom;
-
- for(list=0; list<2; list++){
- h->luma_weight_flag[list] = 0;
- h->chroma_weight_flag[list] = 0;
- for(i=0; i<h->ref_count[list]; i++){
- int luma_weight_flag, chroma_weight_flag;
-
- luma_weight_flag= get_bits1(&s->gb);
- if(luma_weight_flag){
- h->luma_weight[list][i]= get_se_golomb(&s->gb);
- h->luma_offset[list][i]= get_se_golomb(&s->gb);
- if( h->luma_weight[list][i] != luma_def
- || h->luma_offset[list][i] != 0) {
- h->use_weight= 1;
- h->luma_weight_flag[list]= 1;
- }
- }else{
- h->luma_weight[list][i]= luma_def;
- h->luma_offset[list][i]= 0;
- }
-
- if(CHROMA){
- chroma_weight_flag= get_bits1(&s->gb);
- if(chroma_weight_flag){
- int j;
- for(j=0; j<2; j++){
- h->chroma_weight[list][i][j]= get_se_golomb(&s->gb);
- h->chroma_offset[list][i][j]= get_se_golomb(&s->gb);
- if( h->chroma_weight[list][i][j] != chroma_def
- || h->chroma_offset[list][i][j] != 0) {
- h->use_weight_chroma= 1;
- h->chroma_weight_flag[list]= 1;
- }
- }
- }else{
- int j;
- for(j=0; j<2; j++){
- h->chroma_weight[list][i][j]= chroma_def;
- h->chroma_offset[list][i][j]= 0;
- }
- }
- }
- }
- if(h->slice_type_nos != FF_B_TYPE) break;
- }
- h->use_weight= h->use_weight || h->use_weight_chroma;
- return 0;
-}
-
-static void implicit_weight_table(H264Context *h){
- MpegEncContext * const s = &h->s;
- int ref0, ref1, i;
- int cur_poc = s->current_picture_ptr->poc;
-
- for (i = 0; i < 2; i++) {
- h->luma_weight_flag[i] = 0;
- h->chroma_weight_flag[i] = 0;
- }
-
- if( h->ref_count[0] == 1 && h->ref_count[1] == 1
- && h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2*cur_poc){
- h->use_weight= 0;
- h->use_weight_chroma= 0;
- return;
- }
-
- h->use_weight= 2;
- h->use_weight_chroma= 2;
- h->luma_log2_weight_denom= 5;
- h->chroma_log2_weight_denom= 5;
-
- for(ref0=0; ref0 < h->ref_count[0]; ref0++){
- int poc0 = h->ref_list[0][ref0].poc;
- for(ref1=0; ref1 < h->ref_count[1]; ref1++){
- int poc1 = h->ref_list[1][ref1].poc;
- int td = av_clip(poc1 - poc0, -128, 127);
- if(td){
- int tb = av_clip(cur_poc - poc0, -128, 127);
- int tx = (16384 + (FFABS(td) >> 1)) / td;
- int dist_scale_factor = av_clip((tb*tx + 32) >> 6, -1024, 1023) >> 2;
- if(dist_scale_factor < -64 || dist_scale_factor > 128)
- h->implicit_weight[ref0][ref1] = 32;
- else
- h->implicit_weight[ref0][ref1] = 64 - dist_scale_factor;
- }else
- h->implicit_weight[ref0][ref1] = 32;
- }
- }
-}
-
-/**
- * Mark a picture as no longer needed for reference. The refmask
- * argument allows unreferencing of individual fields or the whole frame.
- * If the picture becomes entirely unreferenced, but is being held for
- * display purposes, it is marked as such.
- * @param refmask mask of fields to unreference; the mask is bitwise
- * anded with the reference marking of pic
- * @return non-zero if pic becomes entirely unreferenced (except possibly
- * for display purposes) zero if one of the fields remains in
- * reference
- */
-static inline int unreference_pic(H264Context *h, Picture *pic, int refmask){
- int i;
- if (pic->reference &= refmask) {
- return 0;
- } else {
- for(i = 0; h->delayed_pic[i]; i++)
- if(pic == h->delayed_pic[i]){
- pic->reference=DELAYED_PIC_REF;
- break;
- }
- return 1;
- }
-}
-
-/**
- * instantaneous decoder refresh.
- */
-static void idr(H264Context *h){
- int i;
-
- for(i=0; i<16; i++){
- remove_long(h, i, 0);
- }
- assert(h->long_ref_count==0);
-
- for(i=0; i<h->short_ref_count; i++){
- unreference_pic(h, h->short_ref[i], 0);
- h->short_ref[i]= NULL;
- }
- h->short_ref_count=0;
- h->prev_frame_num= 0;
- h->prev_frame_num_offset= 0;
- h->prev_poc_msb=
- h->prev_poc_lsb= 0;
-}
-
-/* forget old pics after a seek */
-static void flush_dpb(AVCodecContext *avctx){
- H264Context *h= avctx->priv_data;
- int i;
- for(i=0; i<MAX_DELAYED_PIC_COUNT; i++) {
- if(h->delayed_pic[i])
- h->delayed_pic[i]->reference= 0;
- h->delayed_pic[i]= NULL;
- }
- h->outputed_poc= INT_MIN;
- h->prev_interlaced_frame = 1;
- idr(h);
- if(h->s.current_picture_ptr)
- h->s.current_picture_ptr->reference= 0;
- h->s.first_field= 0;
- reset_sei(h);
- ff_mpeg_flush(avctx);
-}
-
-/**
- * Find a Picture in the short term reference list by frame number.
- * @param frame_num frame number to search for
- * @param idx the index into h->short_ref where returned picture is found
- * undefined if no picture found.
- * @return pointer to the found picture, or NULL if no pic with the provided
- * frame number is found
- */
-static Picture * find_short(H264Context *h, int frame_num, int *idx){
- MpegEncContext * const s = &h->s;
- int i;
-
- for(i=0; i<h->short_ref_count; i++){
- Picture *pic= h->short_ref[i];
- if(s->avctx->debug&FF_DEBUG_MMCO)
- av_log(h->s.avctx, AV_LOG_DEBUG, "%d %d %p\n", i, pic->frame_num, pic);
- if(pic->frame_num == frame_num) {
- *idx = i;
- return pic;
- }
- }
- return NULL;
-}
-
-/**
- * Remove a picture from the short term reference list by its index in
- * that list. This does no checking on the provided index; it is assumed
- * to be valid. Other list entries are shifted down.
- * @param i index into h->short_ref of picture to remove.
- */
-static void remove_short_at_index(H264Context *h, int i){
- assert(i >= 0 && i < h->short_ref_count);
- h->short_ref[i]= NULL;
- if (--h->short_ref_count)
- memmove(&h->short_ref[i], &h->short_ref[i+1], (h->short_ref_count - i)*sizeof(Picture*));
-}
-
-/**
- *
- * @return the removed picture or NULL if an error occurs
- */
-static Picture * remove_short(H264Context *h, int frame_num, int ref_mask){
- MpegEncContext * const s = &h->s;
- Picture *pic;
- int i;
-
- if(s->avctx->debug&FF_DEBUG_MMCO)
- av_log(h->s.avctx, AV_LOG_DEBUG, "remove short %d count %d\n", frame_num, h->short_ref_count);
-
- pic = find_short(h, frame_num, &i);
- if (pic){
- if(unreference_pic(h, pic, ref_mask))
- remove_short_at_index(h, i);
- }
-
- return pic;
-}
-
-/**
- * Remove a picture from the long term reference list by its index in
- * that list.
- * @return the removed picture or NULL if an error occurs
- */
-static Picture * remove_long(H264Context *h, int i, int ref_mask){
- Picture *pic;
-
- pic= h->long_ref[i];
- if (pic){
- if(unreference_pic(h, pic, ref_mask)){
- assert(h->long_ref[i]->long_ref == 1);
- h->long_ref[i]->long_ref= 0;
- h->long_ref[i]= NULL;
- h->long_ref_count--;
- }
- }
-
- return pic;
-}
-
-/**
- * print short term list
- */
-static void print_short_term(H264Context *h) {
- uint32_t i;
- if(h->s.avctx->debug&FF_DEBUG_MMCO) {
- av_log(h->s.avctx, AV_LOG_DEBUG, "short term list:\n");
- for(i=0; i<h->short_ref_count; i++){
- Picture *pic= h->short_ref[i];
- av_log(h->s.avctx, AV_LOG_DEBUG, "%d fn:%d poc:%d %p\n", i, pic->frame_num, pic->poc, pic->data[0]);
- }
- }
-}
-
-/**
- * print long term list
- */
-static void print_long_term(H264Context *h) {
- uint32_t i;
- if(h->s.avctx->debug&FF_DEBUG_MMCO) {
- av_log(h->s.avctx, AV_LOG_DEBUG, "long term list:\n");
- for(i = 0; i < 16; i++){
- Picture *pic= h->long_ref[i];
- if (pic) {
- av_log(h->s.avctx, AV_LOG_DEBUG, "%d fn:%d poc:%d %p\n", i, pic->frame_num, pic->poc, pic->data[0]);
- }
- }
- }
-}
-
-/**
- * Executes the reference picture marking (memory management control operations).
- */
-static int execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count){
- MpegEncContext * const s = &h->s;
- int i, av_uninit(j);
- int current_ref_assigned=0;
- Picture *av_uninit(pic);
-
- if((s->avctx->debug&FF_DEBUG_MMCO) && mmco_count==0)
- av_log(h->s.avctx, AV_LOG_DEBUG, "no mmco here\n");
-
- for(i=0; i<mmco_count; i++){
- int av_uninit(structure), av_uninit(frame_num);
- if(s->avctx->debug&FF_DEBUG_MMCO)
- av_log(h->s.avctx, AV_LOG_DEBUG, "mmco:%d %d %d\n", h->mmco[i].opcode, h->mmco[i].short_pic_num, h->mmco[i].long_arg);
-
- if( mmco[i].opcode == MMCO_SHORT2UNUSED
- || mmco[i].opcode == MMCO_SHORT2LONG){
- frame_num = pic_num_extract(h, mmco[i].short_pic_num, &structure);
- pic = find_short(h, frame_num, &j);
- if(!pic){
- if(mmco[i].opcode != MMCO_SHORT2LONG || !h->long_ref[mmco[i].long_arg]
- || h->long_ref[mmco[i].long_arg]->frame_num != frame_num)
- av_log(h->s.avctx, AV_LOG_ERROR, "mmco: unref short failure\n");
- continue;
- }
- }
-
- switch(mmco[i].opcode){
- case MMCO_SHORT2UNUSED:
- if(s->avctx->debug&FF_DEBUG_MMCO)
- av_log(h->s.avctx, AV_LOG_DEBUG, "mmco: unref short %d count %d\n", h->mmco[i].short_pic_num, h->short_ref_count);
- remove_short(h, frame_num, structure ^ PICT_FRAME);
- break;
- case MMCO_SHORT2LONG:
- if (h->long_ref[mmco[i].long_arg] != pic)
- remove_long(h, mmco[i].long_arg, 0);
-
- remove_short_at_index(h, j);
- h->long_ref[ mmco[i].long_arg ]= pic;
- if (h->long_ref[ mmco[i].long_arg ]){
- h->long_ref[ mmco[i].long_arg ]->long_ref=1;
- h->long_ref_count++;
- }
- break;
- case MMCO_LONG2UNUSED:
- j = pic_num_extract(h, mmco[i].long_arg, &structure);
- pic = h->long_ref[j];
- if (pic) {
- remove_long(h, j, structure ^ PICT_FRAME);
- } else if(s->avctx->debug&FF_DEBUG_MMCO)
- av_log(h->s.avctx, AV_LOG_DEBUG, "mmco: unref long failure\n");
- break;
- case MMCO_LONG:
- // Comment below left from previous code as it is an interresting note.
- /* First field in pair is in short term list or
- * at a different long term index.
- * This is not allowed; see 7.4.3.3, notes 2 and 3.
- * Report the problem and keep the pair where it is,
- * and mark this field valid.
- */
-
- if (h->long_ref[mmco[i].long_arg] != s->current_picture_ptr) {
- remove_long(h, mmco[i].long_arg, 0);
-
- h->long_ref[ mmco[i].long_arg ]= s->current_picture_ptr;
- h->long_ref[ mmco[i].long_arg ]->long_ref=1;
- h->long_ref_count++;
- }
-
- s->current_picture_ptr->reference |= s->picture_structure;
- current_ref_assigned=1;
- break;
- case MMCO_SET_MAX_LONG:
- assert(mmco[i].long_arg <= 16);
- // just remove the long term which index is greater than new max
- for(j = mmco[i].long_arg; j<16; j++){
- remove_long(h, j, 0);
- }
- break;
- case MMCO_RESET:
- while(h->short_ref_count){
- remove_short(h, h->short_ref[0]->frame_num, 0);
- }
- for(j = 0; j < 16; j++) {
- remove_long(h, j, 0);
- }
- s->current_picture_ptr->poc=
- s->current_picture_ptr->field_poc[0]=
- s->current_picture_ptr->field_poc[1]=
- h->poc_lsb=
- h->poc_msb=
- h->frame_num=
- s->current_picture_ptr->frame_num= 0;
- s->current_picture_ptr->mmco_reset=1;
- break;
- default: assert(0);
- }
- }
-
- if (!current_ref_assigned) {
- /* Second field of complementary field pair; the first field of
- * which is already referenced. If short referenced, it
- * should be first entry in short_ref. If not, it must exist
- * in long_ref; trying to put it on the short list here is an
- * error in the encoded bit stream (ref: 7.4.3.3, NOTE 2 and 3).
- */
- if (h->short_ref_count && h->short_ref[0] == s->current_picture_ptr) {
- /* Just mark the second field valid */
- s->current_picture_ptr->reference = PICT_FRAME;
- } else if (s->current_picture_ptr->long_ref) {
- av_log(h->s.avctx, AV_LOG_ERROR, "illegal short term reference "
- "assignment for second field "
- "in complementary field pair "
- "(first field is long term)\n");
- } else {
- pic= remove_short(h, s->current_picture_ptr->frame_num, 0);
- if(pic){
- av_log(h->s.avctx, AV_LOG_ERROR, "illegal short term buffer state detected\n");
- }
-
- if(h->short_ref_count)
- memmove(&h->short_ref[1], &h->short_ref[0], h->short_ref_count*sizeof(Picture*));
-
- h->short_ref[0]= s->current_picture_ptr;
- h->short_ref_count++;
- s->current_picture_ptr->reference |= s->picture_structure;
- }
- }
-
- if (h->long_ref_count + h->short_ref_count > h->sps.ref_frame_count){
-
- /* We have too many reference frames, probably due to corrupted
- * stream. Need to discard one frame. Prevents overrun of the
- * short_ref and long_ref buffers.
- */
- av_log(h->s.avctx, AV_LOG_ERROR,
- "number of reference frames exceeds max (probably "
- "corrupt input), discarding one\n");
-
- if (h->long_ref_count && !h->short_ref_count) {
- for (i = 0; i < 16; ++i)
- if (h->long_ref[i])
- break;
-
- assert(i < 16);
- remove_long(h, i, 0);
- } else {
- pic = h->short_ref[h->short_ref_count - 1];
- remove_short(h, pic->frame_num, 0);
- }
- }
-
- print_short_term(h);
- print_long_term(h);
- return 0;
-}
-
-static int decode_ref_pic_marking(H264Context *h, GetBitContext *gb){
- MpegEncContext * const s = &h->s;
- int i;
-
- h->mmco_index= 0;
- if(h->nal_unit_type == NAL_IDR_SLICE){ //FIXME fields
- s->broken_link= get_bits1(gb) -1;
- if(get_bits1(gb)){
- h->mmco[0].opcode= MMCO_LONG;
- h->mmco[0].long_arg= 0;
- h->mmco_index= 1;
- }
- }else{
- if(get_bits1(gb)){ // adaptive_ref_pic_marking_mode_flag
- for(i= 0; i<MAX_MMCO_COUNT; i++) {
- MMCOOpcode opcode= get_ue_golomb_31(gb);
-
- h->mmco[i].opcode= opcode;
- if(opcode==MMCO_SHORT2UNUSED || opcode==MMCO_SHORT2LONG){
- h->mmco[i].short_pic_num= (h->curr_pic_num - get_ue_golomb(gb) - 1) & (h->max_pic_num - 1);
-/* if(h->mmco[i].short_pic_num >= h->short_ref_count || h->short_ref[ h->mmco[i].short_pic_num ] == NULL){
- av_log(s->avctx, AV_LOG_ERROR, "illegal short ref in memory management control operation %d\n", mmco);
- return -1;
- }*/
- }
- if(opcode==MMCO_SHORT2LONG || opcode==MMCO_LONG2UNUSED || opcode==MMCO_LONG || opcode==MMCO_SET_MAX_LONG){
- unsigned int long_arg= get_ue_golomb_31(gb);
- if(long_arg >= 32 || (long_arg >= 16 && !(opcode == MMCO_LONG2UNUSED && FIELD_PICTURE))){
- av_log(h->s.avctx, AV_LOG_ERROR, "illegal long ref in memory management control operation %d\n", opcode);
- return -1;
- }
- h->mmco[i].long_arg= long_arg;
- }
-
- if(opcode > (unsigned)MMCO_LONG){
- av_log(h->s.avctx, AV_LOG_ERROR, "illegal memory management control operation %d\n", opcode);
- return -1;
- }
- if(opcode == MMCO_END)
- break;
- }
- h->mmco_index= i;
- }else{
- assert(h->long_ref_count + h->short_ref_count <= h->sps.ref_frame_count);
-
- if(h->short_ref_count && h->long_ref_count + h->short_ref_count == h->sps.ref_frame_count &&
- !(FIELD_PICTURE && !s->first_field && s->current_picture_ptr->reference)) {
- h->mmco[0].opcode= MMCO_SHORT2UNUSED;
- h->mmco[0].short_pic_num= h->short_ref[ h->short_ref_count - 1 ]->frame_num;
- h->mmco_index= 1;
- if (FIELD_PICTURE) {
- h->mmco[0].short_pic_num *= 2;
- h->mmco[1].opcode= MMCO_SHORT2UNUSED;
- h->mmco[1].short_pic_num= h->mmco[0].short_pic_num + 1;
- h->mmco_index= 2;
- }
- }
- }
- }
-
- return 0;
-}
-
-static int init_poc(H264Context *h){
- MpegEncContext * const s = &h->s;
- const int max_frame_num= 1<<h->sps.log2_max_frame_num;
- int field_poc[2];
- Picture *cur = s->current_picture_ptr;
-
- h->frame_num_offset= h->prev_frame_num_offset;
- if(h->frame_num < h->prev_frame_num)
- h->frame_num_offset += max_frame_num;
-
- if(h->sps.poc_type==0){
- const int max_poc_lsb= 1<<h->sps.log2_max_poc_lsb;
-
- if (h->poc_lsb < h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb >= max_poc_lsb/2)
- h->poc_msb = h->prev_poc_msb + max_poc_lsb;
- else if(h->poc_lsb > h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb < -max_poc_lsb/2)
- h->poc_msb = h->prev_poc_msb - max_poc_lsb;
- else
- h->poc_msb = h->prev_poc_msb;
-//printf("poc: %d %d\n", h->poc_msb, h->poc_lsb);
- field_poc[0] =
- field_poc[1] = h->poc_msb + h->poc_lsb;
- if(s->picture_structure == PICT_FRAME)
- field_poc[1] += h->delta_poc_bottom;
- }else if(h->sps.poc_type==1){
- int abs_frame_num, expected_delta_per_poc_cycle, expectedpoc;
- int i;
-
- if(h->sps.poc_cycle_length != 0)
- abs_frame_num = h->frame_num_offset + h->frame_num;
- else
- abs_frame_num = 0;
-
- if(h->nal_ref_idc==0 && abs_frame_num > 0)
- abs_frame_num--;
-
- expected_delta_per_poc_cycle = 0;
- for(i=0; i < h->sps.poc_cycle_length; i++)
- expected_delta_per_poc_cycle += h->sps.offset_for_ref_frame[ i ]; //FIXME integrate during sps parse
-
- if(abs_frame_num > 0){
- int poc_cycle_cnt = (abs_frame_num - 1) / h->sps.poc_cycle_length;
- int frame_num_in_poc_cycle = (abs_frame_num - 1) % h->sps.poc_cycle_length;
-
- expectedpoc = poc_cycle_cnt * expected_delta_per_poc_cycle;
- for(i = 0; i <= frame_num_in_poc_cycle; i++)
- expectedpoc = expectedpoc + h->sps.offset_for_ref_frame[ i ];
- } else
- expectedpoc = 0;
-
- if(h->nal_ref_idc == 0)
- expectedpoc = expectedpoc + h->sps.offset_for_non_ref_pic;
-
- field_poc[0] = expectedpoc + h->delta_poc[0];
- field_poc[1] = field_poc[0] + h->sps.offset_for_top_to_bottom_field;
-
- if(s->picture_structure == PICT_FRAME)
- field_poc[1] += h->delta_poc[1];
- }else{
- int poc= 2*(h->frame_num_offset + h->frame_num);
-
- if(!h->nal_ref_idc)
- poc--;
-
- field_poc[0]= poc;
- field_poc[1]= poc;
- }
-
- if(s->picture_structure != PICT_BOTTOM_FIELD)
- s->current_picture_ptr->field_poc[0]= field_poc[0];
- if(s->picture_structure != PICT_TOP_FIELD)
- s->current_picture_ptr->field_poc[1]= field_poc[1];
- cur->poc= FFMIN(cur->field_poc[0], cur->field_poc[1]);
-
- return 0;
-}
-
-
-/**
- * initialize scan tables
- */
-static void init_scan_tables(H264Context *h){
- MpegEncContext * const s = &h->s;
- int i;
- if(s->dsp.h264_idct_add == ff_h264_idct_add_c){ //FIXME little ugly
- memcpy(h->zigzag_scan, zigzag_scan, 16*sizeof(uint8_t));
- memcpy(h-> field_scan, field_scan, 16*sizeof(uint8_t));
- }else{
- for(i=0; i<16; i++){
-#define T(x) (x>>2) | ((x<<2) & 0xF)
- h->zigzag_scan[i] = T(zigzag_scan[i]);
- h-> field_scan[i] = T( field_scan[i]);
-#undef T
- }
- }
- if(s->dsp.h264_idct8_add == ff_h264_idct8_add_c){
- memcpy(h->zigzag_scan8x8, ff_zigzag_direct, 64*sizeof(uint8_t));
- memcpy(h->zigzag_scan8x8_cavlc, zigzag_scan8x8_cavlc, 64*sizeof(uint8_t));
- memcpy(h->field_scan8x8, field_scan8x8, 64*sizeof(uint8_t));
- memcpy(h->field_scan8x8_cavlc, field_scan8x8_cavlc, 64*sizeof(uint8_t));
- }else{
- for(i=0; i<64; i++){
-#define T(x) (x>>3) | ((x&7)<<3)
- h->zigzag_scan8x8[i] = T(ff_zigzag_direct[i]);
- h->zigzag_scan8x8_cavlc[i] = T(zigzag_scan8x8_cavlc[i]);
- h->field_scan8x8[i] = T(field_scan8x8[i]);
- h->field_scan8x8_cavlc[i] = T(field_scan8x8_cavlc[i]);
-#undef T
- }
- }
- if(h->sps.transform_bypass){ //FIXME same ugly
- h->zigzag_scan_q0 = zigzag_scan;
- h->zigzag_scan8x8_q0 = ff_zigzag_direct;
- h->zigzag_scan8x8_cavlc_q0 = zigzag_scan8x8_cavlc;
- h->field_scan_q0 = field_scan;
- h->field_scan8x8_q0 = field_scan8x8;
- h->field_scan8x8_cavlc_q0 = field_scan8x8_cavlc;
- }else{
- h->zigzag_scan_q0 = h->zigzag_scan;
- h->zigzag_scan8x8_q0 = h->zigzag_scan8x8;
- h->zigzag_scan8x8_cavlc_q0 = h->zigzag_scan8x8_cavlc;
- h->field_scan_q0 = h->field_scan;
- h->field_scan8x8_q0 = h->field_scan8x8;
- h->field_scan8x8_cavlc_q0 = h->field_scan8x8_cavlc;
- }
-}
-
-static void field_end(H264Context *h){
- MpegEncContext * const s = &h->s;
- AVCodecContext * const avctx= s->avctx;
- s->mb_y= 0;
-
- s->current_picture_ptr->qscale_type= FF_QSCALE_TYPE_H264;
- s->current_picture_ptr->pict_type= s->pict_type;
-
- if (CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
- ff_vdpau_h264_set_reference_frames(s);
-
- if(!s->dropable) {
- execute_ref_pic_marking(h, h->mmco, h->mmco_index);
- h->prev_poc_msb= h->poc_msb;
- h->prev_poc_lsb= h->poc_lsb;
- }
- h->prev_frame_num_offset= h->frame_num_offset;
- h->prev_frame_num= h->frame_num;
-
- if (avctx->hwaccel) {
- if (avctx->hwaccel->end_frame(avctx) < 0)
- av_log(avctx, AV_LOG_ERROR, "hardware accelerator failed to decode picture\n");
- }
-
- if (CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
- ff_vdpau_h264_picture_complete(s);
-
- /*
- * FIXME: Error handling code does not seem to support interlaced
- * when slices span multiple rows
- * The ff_er_add_slice calls don't work right for bottom
- * fields; they cause massive erroneous error concealing
- * Error marking covers both fields (top and bottom).
- * This causes a mismatched s->error_count
- * and a bad error table. Further, the error count goes to
- * INT_MAX when called for bottom field, because mb_y is
- * past end by one (callers fault) and resync_mb_y != 0
- * causes problems for the first MB line, too.
- */
- if (!FIELD_PICTURE)
- ff_er_frame_end(s);
-
- MPV_frame_end(s);
-
- h->current_slice=0;
-}
-
-/**
- * Replicates H264 "master" context to thread contexts.
- */
-static void clone_slice(H264Context *dst, H264Context *src)
-{
- memcpy(dst->block_offset, src->block_offset, sizeof(dst->block_offset));
- dst->s.current_picture_ptr = src->s.current_picture_ptr;
- dst->s.current_picture = src->s.current_picture;
- dst->s.linesize = src->s.linesize;
- dst->s.uvlinesize = src->s.uvlinesize;
- dst->s.first_field = src->s.first_field;
-
- dst->prev_poc_msb = src->prev_poc_msb;
- dst->prev_poc_lsb = src->prev_poc_lsb;
- dst->prev_frame_num_offset = src->prev_frame_num_offset;
- dst->prev_frame_num = src->prev_frame_num;
- dst->short_ref_count = src->short_ref_count;
-
- memcpy(dst->short_ref, src->short_ref, sizeof(dst->short_ref));
- memcpy(dst->long_ref, src->long_ref, sizeof(dst->long_ref));
- memcpy(dst->default_ref_list, src->default_ref_list, sizeof(dst->default_ref_list));
- memcpy(dst->ref_list, src->ref_list, sizeof(dst->ref_list));
-
- memcpy(dst->dequant4_coeff, src->dequant4_coeff, sizeof(src->dequant4_coeff));
- memcpy(dst->dequant8_coeff, src->dequant8_coeff, sizeof(src->dequant8_coeff));
-}
-
-/**
- * decodes a slice header.
- * This will also call MPV_common_init() and frame_start() as needed.
- *
- * @param h h264context
- * @param h0 h264 master context (differs from 'h' when doing sliced based parallel decoding)
- *
- * @return 0 if okay, <0 if an error occurred, 1 if decoding must not be multithreaded
- */
-static int decode_slice_header(H264Context *h, H264Context *h0){
- MpegEncContext * const s = &h->s;
- MpegEncContext * const s0 = &h0->s;
- unsigned int first_mb_in_slice;
- unsigned int pps_id;
- int num_ref_idx_active_override_flag;
- unsigned int slice_type, tmp, i, j;
- int default_ref_list_done = 0;
- int last_pic_structure;
-
- s->dropable= h->nal_ref_idc == 0;
-
- if((s->avctx->flags2 & CODEC_FLAG2_FAST) && !h->nal_ref_idc){
- s->me.qpel_put= s->dsp.put_2tap_qpel_pixels_tab;
- s->me.qpel_avg= s->dsp.avg_2tap_qpel_pixels_tab;
- }else{
- s->me.qpel_put= s->dsp.put_h264_qpel_pixels_tab;
- s->me.qpel_avg= s->dsp.avg_h264_qpel_pixels_tab;
- }
-
- first_mb_in_slice= get_ue_golomb(&s->gb);
-
- if(first_mb_in_slice == 0){ //FIXME better field boundary detection
- if(h0->current_slice && FIELD_PICTURE){
- field_end(h);
- }
-
- h0->current_slice = 0;
- if (!s0->first_field)
- s->current_picture_ptr= NULL;
- }
-
- slice_type= get_ue_golomb_31(&s->gb);
- if(slice_type > 9){
- av_log(h->s.avctx, AV_LOG_ERROR, "slice type too large (%d) at %d %d\n", h->slice_type, s->mb_x, s->mb_y);
- return -1;
- }
- if(slice_type > 4){
- slice_type -= 5;
- h->slice_type_fixed=1;
- }else
- h->slice_type_fixed=0;
-
- slice_type= golomb_to_pict_type[ slice_type ];
- if (slice_type == FF_I_TYPE
- || (h0->current_slice != 0 && slice_type == h0->last_slice_type) ) {
- default_ref_list_done = 1;
- }
- h->slice_type= slice_type;
- h->slice_type_nos= slice_type & 3;
-
- s->pict_type= h->slice_type; // to make a few old functions happy, it's wrong though
- if (s->pict_type == FF_B_TYPE && s0->last_picture_ptr == NULL) {
- av_log(h->s.avctx, AV_LOG_ERROR,
- "B picture before any references, skipping\n");
- return -1;
- }
-
- pps_id= get_ue_golomb(&s->gb);
- if(pps_id>=MAX_PPS_COUNT){
- av_log(h->s.avctx, AV_LOG_ERROR, "pps_id out of range\n");
- return -1;
- }
- if(!h0->pps_buffers[pps_id]) {
- av_log(h->s.avctx, AV_LOG_ERROR, "non-existing PPS %u referenced\n", pps_id);
- return -1;
- }
- h->pps= *h0->pps_buffers[pps_id];
-
- if(!h0->sps_buffers[h->pps.sps_id]) {
- av_log(h->s.avctx, AV_LOG_ERROR, "non-existing SPS %u referenced\n", h->pps.sps_id);
- return -1;
- }
- h->sps = *h0->sps_buffers[h->pps.sps_id];
-
- if(h == h0 && h->dequant_coeff_pps != pps_id){
- h->dequant_coeff_pps = pps_id;
- init_dequant_tables(h);
- }
-
- s->mb_width= h->sps.mb_width;
- s->mb_height= h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag);
-
- h->b_stride= s->mb_width*4;
- h->b8_stride= s->mb_width*2;
-
- s->width = 16*s->mb_width - 2*FFMIN(h->sps.crop_right, 7);
- if(h->sps.frame_mbs_only_flag)
- s->height= 16*s->mb_height - 2*FFMIN(h->sps.crop_bottom, 7);
- else
- s->height= 16*s->mb_height - 4*FFMIN(h->sps.crop_bottom, 3);
-
- if (s->context_initialized
- && ( s->width != s->avctx->width || s->height != s->avctx->height)) {
- if(h != h0)
- return -1; // width / height changed during parallelized decoding
- free_tables(h);
- flush_dpb(s->avctx);
- MPV_common_end(s);
- }
- if (!s->context_initialized) {
- if(h != h0)
- return -1; // we cant (re-)initialize context during parallel decoding
-
- avcodec_set_dimensions(s->avctx, s->width, s->height);
- s->avctx->sample_aspect_ratio= h->sps.sar;
- if(!s->avctx->sample_aspect_ratio.den)
- s->avctx->sample_aspect_ratio.den = 1;
-
- if(h->sps.video_signal_type_present_flag){
- s->avctx->color_range = h->sps.full_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
- if(h->sps.colour_description_present_flag){
- s->avctx->color_primaries = h->sps.color_primaries;
- s->avctx->color_trc = h->sps.color_trc;
- s->avctx->colorspace = h->sps.colorspace;
- }
- }
-
- if(h->sps.timing_info_present_flag){
- s->avctx->time_base= (AVRational){h->sps.num_units_in_tick, h->sps.time_scale};
- if(h->x264_build > 0 && h->x264_build < 44)
- s->avctx->time_base.den *= 2;
- av_reduce(&s->avctx->time_base.num, &s->avctx->time_base.den,
- s->avctx->time_base.num, s->avctx->time_base.den, 1<<30);
- }
- s->avctx->pix_fmt = s->avctx->get_format(s->avctx, s->avctx->codec->pix_fmts);
- s->avctx->hwaccel = ff_find_hwaccel(s->avctx->codec->id, s->avctx->pix_fmt);
-
- if (MPV_common_init(s) < 0)
- return -1;
- s->first_field = 0;
- h->prev_interlaced_frame = 1;
-
- init_scan_tables(h);
- ff_h264_alloc_tables(h);
-
- for(i = 1; i < s->avctx->thread_count; i++) {
- H264Context *c;
- c = h->thread_context[i] = av_malloc(sizeof(H264Context));
- memcpy(c, h->s.thread_context[i], sizeof(MpegEncContext));
- memset(&c->s + 1, 0, sizeof(H264Context) - sizeof(MpegEncContext));
- c->sps = h->sps;
- c->pps = h->pps;
- init_scan_tables(c);
- clone_tables(c, h);
- }
-
- for(i = 0; i < s->avctx->thread_count; i++)
- if(context_init(h->thread_context[i]) < 0)
- return -1;
- }
-
- h->frame_num= get_bits(&s->gb, h->sps.log2_max_frame_num);
-
- h->mb_mbaff = 0;
- h->mb_aff_frame = 0;
- last_pic_structure = s0->picture_structure;
- if(h->sps.frame_mbs_only_flag){
- s->picture_structure= PICT_FRAME;
- }else{
- if(get_bits1(&s->gb)) { //field_pic_flag
- s->picture_structure= PICT_TOP_FIELD + get_bits1(&s->gb); //bottom_field_flag
- } else {
- s->picture_structure= PICT_FRAME;
- h->mb_aff_frame = h->sps.mb_aff;
- }
- }
- h->mb_field_decoding_flag= s->picture_structure != PICT_FRAME;
-
- if(h0->current_slice == 0){
- while(h->frame_num != h->prev_frame_num &&
- h->frame_num != (h->prev_frame_num+1)%(1<<h->sps.log2_max_frame_num)){
- av_log(NULL, AV_LOG_DEBUG, "Frame num gap %d %d\n", h->frame_num, h->prev_frame_num);
- if (ff_h264_frame_start(h) < 0)
- return -1;
- h->prev_frame_num++;
- h->prev_frame_num %= 1<<h->sps.log2_max_frame_num;
- s->current_picture_ptr->frame_num= h->prev_frame_num;
- execute_ref_pic_marking(h, NULL, 0);
- }
-
- /* See if we have a decoded first field looking for a pair... */
- if (s0->first_field) {
- assert(s0->current_picture_ptr);
- assert(s0->current_picture_ptr->data[0]);
- assert(s0->current_picture_ptr->reference != DELAYED_PIC_REF);
-
- /* figure out if we have a complementary field pair */
- if (!FIELD_PICTURE || s->picture_structure == last_pic_structure) {
- /*
- * Previous field is unmatched. Don't display it, but let it
- * remain for reference if marked as such.
- */
- s0->current_picture_ptr = NULL;
- s0->first_field = FIELD_PICTURE;
-
- } else {
- if (h->nal_ref_idc &&
- s0->current_picture_ptr->reference &&
- s0->current_picture_ptr->frame_num != h->frame_num) {
- /*
- * This and previous field were reference, but had
- * different frame_nums. Consider this field first in
- * pair. Throw away previous field except for reference
- * purposes.
- */
- s0->first_field = 1;
- s0->current_picture_ptr = NULL;
-
- } else {
- /* Second field in complementary pair */
- s0->first_field = 0;
- }
- }
-
- } else {
- /* Frame or first field in a potentially complementary pair */
- assert(!s0->current_picture_ptr);
- s0->first_field = FIELD_PICTURE;
- }
-
- if((!FIELD_PICTURE || s0->first_field) && ff_h264_frame_start(h) < 0) {
- s0->first_field = 0;
- return -1;
- }
- }
- if(h != h0)
- clone_slice(h, h0);
-
- s->current_picture_ptr->frame_num= h->frame_num; //FIXME frame_num cleanup
-
- assert(s->mb_num == s->mb_width * s->mb_height);
- if(first_mb_in_slice << FIELD_OR_MBAFF_PICTURE >= s->mb_num ||
- first_mb_in_slice >= s->mb_num){
- av_log(h->s.avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
- return -1;
- }
- s->resync_mb_x = s->mb_x = first_mb_in_slice % s->mb_width;
- s->resync_mb_y = s->mb_y = (first_mb_in_slice / s->mb_width) << FIELD_OR_MBAFF_PICTURE;
- if (s->picture_structure == PICT_BOTTOM_FIELD)
- s->resync_mb_y = s->mb_y = s->mb_y + 1;
- assert(s->mb_y < s->mb_height);
-
- if(s->picture_structure==PICT_FRAME){
- h->curr_pic_num= h->frame_num;
- h->max_pic_num= 1<< h->sps.log2_max_frame_num;
- }else{
- h->curr_pic_num= 2*h->frame_num + 1;
- h->max_pic_num= 1<<(h->sps.log2_max_frame_num + 1);
- }
-
- if(h->nal_unit_type == NAL_IDR_SLICE){
- get_ue_golomb(&s->gb); /* idr_pic_id */
- }
-
- if(h->sps.poc_type==0){
- h->poc_lsb= get_bits(&s->gb, h->sps.log2_max_poc_lsb);
-
- if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME){
- h->delta_poc_bottom= get_se_golomb(&s->gb);
- }
- }
-
- if(h->sps.poc_type==1 && !h->sps.delta_pic_order_always_zero_flag){
- h->delta_poc[0]= get_se_golomb(&s->gb);
-
- if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME)
- h->delta_poc[1]= get_se_golomb(&s->gb);
- }
-
- init_poc(h);
-
- if(h->pps.redundant_pic_cnt_present){
- h->redundant_pic_count= get_ue_golomb(&s->gb);
- }
-
- //set defaults, might be overridden a few lines later
- h->ref_count[0]= h->pps.ref_count[0];
- h->ref_count[1]= h->pps.ref_count[1];
-
- if(h->slice_type_nos != FF_I_TYPE){
- if(h->slice_type_nos == FF_B_TYPE){
- h->direct_spatial_mv_pred= get_bits1(&s->gb);
- }
- num_ref_idx_active_override_flag= get_bits1(&s->gb);
-
- if(num_ref_idx_active_override_flag){
- h->ref_count[0]= get_ue_golomb(&s->gb) + 1;
- if(h->slice_type_nos==FF_B_TYPE)
- h->ref_count[1]= get_ue_golomb(&s->gb) + 1;
-
- if(h->ref_count[0]-1 > 32-1 || h->ref_count[1]-1 > 32-1){
- av_log(h->s.avctx, AV_LOG_ERROR, "reference overflow\n");
- h->ref_count[0]= h->ref_count[1]= 1;
- return -1;
- }
- }
- if(h->slice_type_nos == FF_B_TYPE)
- h->list_count= 2;
- else
- h->list_count= 1;
- }else
- h->list_count= 0;
-
- if(!default_ref_list_done){
- fill_default_ref_list(h);
- }
-
- if(h->slice_type_nos!=FF_I_TYPE && decode_ref_pic_list_reordering(h) < 0)
- return -1;
-
- if(h->slice_type_nos!=FF_I_TYPE){
- s->last_picture_ptr= &h->ref_list[0][0];
- ff_copy_picture(&s->last_picture, s->last_picture_ptr);
- }
- if(h->slice_type_nos==FF_B_TYPE){
- s->next_picture_ptr= &h->ref_list[1][0];
- ff_copy_picture(&s->next_picture, s->next_picture_ptr);
- }
-
- if( (h->pps.weighted_pred && h->slice_type_nos == FF_P_TYPE )
- || (h->pps.weighted_bipred_idc==1 && h->slice_type_nos== FF_B_TYPE ) )
- pred_weight_table(h);
- else if(h->pps.weighted_bipred_idc==2 && h->slice_type_nos== FF_B_TYPE)
- implicit_weight_table(h);
- else {
- h->use_weight = 0;
- for (i = 0; i < 2; i++) {
- h->luma_weight_flag[i] = 0;
- h->chroma_weight_flag[i] = 0;
- }
- }
-
- if(h->nal_ref_idc)
- decode_ref_pic_marking(h0, &s->gb);
-
- if(FRAME_MBAFF)
- fill_mbaff_ref_list(h);
-
- if(h->slice_type_nos==FF_B_TYPE && !h->direct_spatial_mv_pred)
- ff_h264_direct_dist_scale_factor(h);
- ff_h264_direct_ref_list_init(h);
-
- if( h->slice_type_nos != FF_I_TYPE && h->pps.cabac ){
- tmp = get_ue_golomb_31(&s->gb);
- if(tmp > 2){
- av_log(s->avctx, AV_LOG_ERROR, "cabac_init_idc overflow\n");
- return -1;
- }
- h->cabac_init_idc= tmp;
- }
-
- h->last_qscale_diff = 0;
- tmp = h->pps.init_qp + get_se_golomb(&s->gb);
- if(tmp>51){
- av_log(s->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
- return -1;
- }
- s->qscale= tmp;
- h->chroma_qp[0] = get_chroma_qp(h, 0, s->qscale);
- h->chroma_qp[1] = get_chroma_qp(h, 1, s->qscale);
- //FIXME qscale / qp ... stuff
- if(h->slice_type == FF_SP_TYPE){
- get_bits1(&s->gb); /* sp_for_switch_flag */
- }
- if(h->slice_type==FF_SP_TYPE || h->slice_type == FF_SI_TYPE){
- get_se_golomb(&s->gb); /* slice_qs_delta */
- }
-
- h->deblocking_filter = 1;
- h->slice_alpha_c0_offset = 0;
- h->slice_beta_offset = 0;
- if( h->pps.deblocking_filter_parameters_present ) {
- tmp= get_ue_golomb_31(&s->gb);
- if(tmp > 2){
- av_log(s->avctx, AV_LOG_ERROR, "deblocking_filter_idc %u out of range\n", tmp);
- return -1;
- }
- h->deblocking_filter= tmp;
- if(h->deblocking_filter < 2)
- h->deblocking_filter^= 1; // 1<->0
-
- if( h->deblocking_filter ) {
- h->slice_alpha_c0_offset = get_se_golomb(&s->gb) << 1;
- h->slice_beta_offset = get_se_golomb(&s->gb) << 1;
- }
- }
-
- if( s->avctx->skip_loop_filter >= AVDISCARD_ALL
- ||(s->avctx->skip_loop_filter >= AVDISCARD_NONKEY && h->slice_type_nos != FF_I_TYPE)
- ||(s->avctx->skip_loop_filter >= AVDISCARD_BIDIR && h->slice_type_nos == FF_B_TYPE)
- ||(s->avctx->skip_loop_filter >= AVDISCARD_NONREF && h->nal_ref_idc == 0))
- h->deblocking_filter= 0;
-
- if(h->deblocking_filter == 1 && h0->max_contexts > 1) {
- if(s->avctx->flags2 & CODEC_FLAG2_FAST) {
- /* Cheat slightly for speed:
- Do not bother to deblock across slices. */
- h->deblocking_filter = 2;
- } else {
- h0->max_contexts = 1;
- if(!h0->single_decode_warning) {
- av_log(s->avctx, AV_LOG_INFO, "Cannot parallelize deblocking type 1, decoding such frames in sequential order\n");
- h0->single_decode_warning = 1;
- }
- if(h != h0)
- return 1; // deblocking switched inside frame
- }
- }
-
-#if 0 //FMO
- if( h->pps.num_slice_groups > 1 && h->pps.mb_slice_group_map_type >= 3 && h->pps.mb_slice_group_map_type <= 5)
- slice_group_change_cycle= get_bits(&s->gb, ?);
-#endif
-
- h0->last_slice_type = slice_type;
- h->slice_num = ++h0->current_slice;
- if(h->slice_num >= MAX_SLICES){
- av_log(s->avctx, AV_LOG_ERROR, "Too many slices, increase MAX_SLICES and recompile\n");
- }
-
- for(j=0; j<2; j++){
- int *ref2frm= h->ref2frm[h->slice_num&(MAX_SLICES-1)][j];
- ref2frm[0]=
- ref2frm[1]= -1;
- for(i=0; i<16; i++)
- ref2frm[i+2]= 4*h->ref_list[j][i].frame_num
- +(h->ref_list[j][i].reference&3);
- ref2frm[18+0]=
- ref2frm[18+1]= -1;
- for(i=16; i<48; i++)
- ref2frm[i+4]= 4*h->ref_list[j][i].frame_num
- +(h->ref_list[j][i].reference&3);
- }
-
- h->emu_edge_width= (s->flags&CODEC_FLAG_EMU_EDGE) ? 0 : 16;
- h->emu_edge_height= (FRAME_MBAFF || FIELD_PICTURE) ? 0 : h->emu_edge_width;
-
- s->avctx->refs= h->sps.ref_frame_count;
-
- if(s->avctx->debug&FF_DEBUG_PICT_INFO){
- av_log(h->s.avctx, AV_LOG_DEBUG, "slice:%d %s mb:%d %c%s%s pps:%u frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d:%d:%d weight:%d%s %s\n",
- h->slice_num,
- (s->picture_structure==PICT_FRAME ? "F" : s->picture_structure==PICT_TOP_FIELD ? "T" : "B"),
- first_mb_in_slice,
- av_get_pict_type_char(h->slice_type), h->slice_type_fixed ? " fix" : "", h->nal_unit_type == NAL_IDR_SLICE ? " IDR" : "",
- pps_id, h->frame_num,
- s->current_picture_ptr->field_poc[0], s->current_picture_ptr->field_poc[1],
- h->ref_count[0], h->ref_count[1],
- s->qscale,
- h->deblocking_filter, h->slice_alpha_c0_offset/2, h->slice_beta_offset/2,
- h->use_weight,
- h->use_weight==1 && h->use_weight_chroma ? "c" : "",
- h->slice_type == FF_B_TYPE ? (h->direct_spatial_mv_pred ? "SPAT" : "TEMP") : ""
- );
- }
-
- return 0;
-}
-
-int ff_h264_get_slice_type(H264Context *h)
-{
- switch (h->slice_type) {
- case FF_P_TYPE: return 0;
- case FF_B_TYPE: return 1;
- case FF_I_TYPE: return 2;
- case FF_SP_TYPE: return 3;
- case FF_SI_TYPE: return 4;
- default: return -1;
- }
-}
-
-/**
- *
- */
-static inline int get_level_prefix(GetBitContext *gb){
- unsigned int buf;
- int log;
-
- OPEN_READER(re, gb);
- UPDATE_CACHE(re, gb);
- buf=GET_CACHE(re, gb);
-
- log= 32 - av_log2(buf);
-#ifdef TRACE
- print_bin(buf>>(32-log), log);
- av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d lpr @%5d in %s get_level_prefix\n", buf>>(32-log), log, log-1, get_bits_count(gb), __FILE__);
-#endif
-
- LAST_SKIP_BITS(re, gb, log);
- CLOSE_READER(re, gb);
-
- return log-1;
-}
-
-static inline int get_dct8x8_allowed(H264Context *h){
- if(h->sps.direct_8x8_inference_flag)
- return !(*(uint64_t*)h->sub_mb_type & ((MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8 )*0x0001000100010001ULL));
- else
- return !(*(uint64_t*)h->sub_mb_type & ((MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8|MB_TYPE_DIRECT2)*0x0001000100010001ULL));
-}
-
-/**
- * decodes a residual block.
- * @param n block index
- * @param scantable scantable
- * @param max_coeff number of coefficients in the block
- * @return <0 if an error occurred
- */
-static int decode_residual(H264Context *h, GetBitContext *gb, DCTELEM *block, int n, const uint8_t *scantable, const uint32_t *qmul, int max_coeff){
- MpegEncContext * const s = &h->s;
- static const int coeff_token_table_index[17]= {0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3};
- int level[16];
- int zeros_left, coeff_num, coeff_token, total_coeff, i, j, trailing_ones, run_before;
-
- //FIXME put trailing_onex into the context
-
- if(n == CHROMA_DC_BLOCK_INDEX){
- coeff_token= get_vlc2(gb, chroma_dc_coeff_token_vlc.table, CHROMA_DC_COEFF_TOKEN_VLC_BITS, 1);
- total_coeff= coeff_token>>2;
- }else{
- if(n == LUMA_DC_BLOCK_INDEX){
- total_coeff= pred_non_zero_count(h, 0);
- coeff_token= get_vlc2(gb, coeff_token_vlc[ coeff_token_table_index[total_coeff] ].table, COEFF_TOKEN_VLC_BITS, 2);
- total_coeff= coeff_token>>2;
- }else{
- total_coeff= pred_non_zero_count(h, n);
- coeff_token= get_vlc2(gb, coeff_token_vlc[ coeff_token_table_index[total_coeff] ].table, COEFF_TOKEN_VLC_BITS, 2);
- total_coeff= coeff_token>>2;
- h->non_zero_count_cache[ scan8[n] ]= total_coeff;
- }
- }
-
- //FIXME set last_non_zero?
-
- if(total_coeff==0)
- return 0;
- if(total_coeff > (unsigned)max_coeff) {
- av_log(h->s.avctx, AV_LOG_ERROR, "corrupted macroblock %d %d (total_coeff=%d)\n", s->mb_x, s->mb_y, total_coeff);
- return -1;
- }
-
- trailing_ones= coeff_token&3;
- tprintf(h->s.avctx, "trailing:%d, total:%d\n", trailing_ones, total_coeff);
- assert(total_coeff<=16);
-
- i = show_bits(gb, 3);
- skip_bits(gb, trailing_ones);
- level[0] = 1-((i&4)>>1);
- level[1] = 1-((i&2) );
- level[2] = 1-((i&1)<<1);
-
- if(trailing_ones<total_coeff) {
- int mask, prefix;
- int suffix_length = total_coeff > 10 && trailing_ones < 3;
- int bitsi= show_bits(gb, LEVEL_TAB_BITS);
- int level_code= cavlc_level_tab[suffix_length][bitsi][0];
-
- skip_bits(gb, cavlc_level_tab[suffix_length][bitsi][1]);
- if(level_code >= 100){
- prefix= level_code - 100;
- if(prefix == LEVEL_TAB_BITS)
- prefix += get_level_prefix(gb);
-
- //first coefficient has suffix_length equal to 0 or 1
- if(prefix<14){ //FIXME try to build a large unified VLC table for all this
- if(suffix_length)
- level_code= (prefix<<1) + get_bits1(gb); //part
- else
- level_code= prefix; //part
- }else if(prefix==14){
- if(suffix_length)
- level_code= (prefix<<1) + get_bits1(gb); //part
- else
- level_code= prefix + get_bits(gb, 4); //part
- }else{
- level_code= 30 + get_bits(gb, prefix-3); //part
- if(prefix>=16)
- level_code += (1<<(prefix-3))-4096;
- }
-
- if(trailing_ones < 3) level_code += 2;
-
- suffix_length = 2;
- mask= -(level_code&1);
- level[trailing_ones]= (((2+level_code)>>1) ^ mask) - mask;
- }else{
- if(trailing_ones < 3) level_code += (level_code>>31)|1;
-
- suffix_length = 1;
- if(level_code + 3U > 6U)
- suffix_length++;
- level[trailing_ones]= level_code;
- }
-
- //remaining coefficients have suffix_length > 0
- for(i=trailing_ones+1;i<total_coeff;i++) {
- static const unsigned int suffix_limit[7] = {0,3,6,12,24,48,INT_MAX };
- int bitsi= show_bits(gb, LEVEL_TAB_BITS);
- level_code= cavlc_level_tab[suffix_length][bitsi][0];
-
- skip_bits(gb, cavlc_level_tab[suffix_length][bitsi][1]);
- if(level_code >= 100){
- prefix= level_code - 100;
- if(prefix == LEVEL_TAB_BITS){
- prefix += get_level_prefix(gb);
- }
- if(prefix<15){
- level_code = (prefix<<suffix_length) + get_bits(gb, suffix_length);
- }else{
- level_code = (15<<suffix_length) + get_bits(gb, prefix-3);
- if(prefix>=16)
- level_code += (1<<(prefix-3))-4096;
- }
- mask= -(level_code&1);
- level_code= (((2+level_code)>>1) ^ mask) - mask;
- }
- level[i]= level_code;
-
- if(suffix_limit[suffix_length] + level_code > 2U*suffix_limit[suffix_length])
- suffix_length++;
- }
- }
-
- if(total_coeff == max_coeff)
- zeros_left=0;
- else{
- if(n == CHROMA_DC_BLOCK_INDEX)
- zeros_left= get_vlc2(gb, chroma_dc_total_zeros_vlc[ total_coeff-1 ].table, CHROMA_DC_TOTAL_ZEROS_VLC_BITS, 1);
- else
- zeros_left= get_vlc2(gb, total_zeros_vlc[ total_coeff-1 ].table, TOTAL_ZEROS_VLC_BITS, 1);
- }
-
- coeff_num = zeros_left + total_coeff - 1;
- j = scantable[coeff_num];
- if(n > 24){
- block[j] = level[0];
- for(i=1;i<total_coeff;i++) {
- if(zeros_left <= 0)
- run_before = 0;
- else if(zeros_left < 7){
- run_before= get_vlc2(gb, run_vlc[zeros_left-1].table, RUN_VLC_BITS, 1);
- }else{
- run_before= get_vlc2(gb, run7_vlc.table, RUN7_VLC_BITS, 2);
- }
- zeros_left -= run_before;
- coeff_num -= 1 + run_before;
- j= scantable[ coeff_num ];
-
- block[j]= level[i];
- }
- }else{
- block[j] = (level[0] * qmul[j] + 32)>>6;
- for(i=1;i<total_coeff;i++) {
- if(zeros_left <= 0)
- run_before = 0;
- else if(zeros_left < 7){
- run_before= get_vlc2(gb, run_vlc[zeros_left-1].table, RUN_VLC_BITS, 1);
- }else{
- run_before= get_vlc2(gb, run7_vlc.table, RUN7_VLC_BITS, 2);
- }
- zeros_left -= run_before;
- coeff_num -= 1 + run_before;
- j= scantable[ coeff_num ];
-
- block[j]= (level[i] * qmul[j] + 32)>>6;
- }
- }
-
- if(zeros_left<0){
- av_log(h->s.avctx, AV_LOG_ERROR, "negative number of zero coeffs at %d %d\n", s->mb_x, s->mb_y);
- return -1;
- }
-
- return 0;
-}
-
-static void predict_field_decoding_flag(H264Context *h){
- MpegEncContext * const s = &h->s;
- const int mb_xy= h->mb_xy;
- int mb_type = (h->slice_table[mb_xy-1] == h->slice_num)
- ? s->current_picture.mb_type[mb_xy-1]
- : (h->slice_table[mb_xy-s->mb_stride] == h->slice_num)
- ? s->current_picture.mb_type[mb_xy-s->mb_stride]
- : 0;
- h->mb_mbaff = h->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0;
-}
-
-/**
- * decodes a P_SKIP or B_SKIP macroblock
- */
-static void decode_mb_skip(H264Context *h){
- MpegEncContext * const s = &h->s;
- const int mb_xy= h->mb_xy;
- int mb_type=0;
-
- memset(h->non_zero_count[mb_xy], 0, 16);
- memset(h->non_zero_count_cache + 8, 0, 8*5); //FIXME ugly, remove pfui
-
- if(MB_FIELD)
- mb_type|= MB_TYPE_INTERLACED;
-
- if( h->slice_type_nos == FF_B_TYPE )
- {
- // just for fill_caches. pred_direct_motion will set the real mb_type
- mb_type|= MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2|MB_TYPE_SKIP;
-
- fill_caches(h, mb_type, 0); //FIXME check what is needed and what not ...
- ff_h264_pred_direct_motion(h, &mb_type);
- mb_type|= MB_TYPE_SKIP;
- }
- else
- {
- int mx, my;
- mb_type|= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P1L0|MB_TYPE_SKIP;
-
- fill_caches(h, mb_type, 0); //FIXME check what is needed and what not ...
- pred_pskip_motion(h, &mx, &my);
- fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, 0, 1);
- fill_rectangle( h->mv_cache[0][scan8[0]], 4, 4, 8, pack16to32(mx,my), 4);
- }
-
- write_back_motion(h, mb_type);
- s->current_picture.mb_type[mb_xy]= mb_type;
- s->current_picture.qscale_table[mb_xy]= s->qscale;
- h->slice_table[ mb_xy ]= h->slice_num;
- h->prev_mb_skipped= 1;
-}
-
-/**
- * decodes a macroblock
- * @returns 0 if OK, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
- */
-static int decode_mb_cavlc(H264Context *h){
- MpegEncContext * const s = &h->s;
- int mb_xy;
- int partition_count;
- unsigned int mb_type, cbp;
- int dct8x8_allowed= h->pps.transform_8x8_mode;
-
- mb_xy = h->mb_xy = s->mb_x + s->mb_y*s->mb_stride;
-
- tprintf(s->avctx, "pic:%d mb:%d/%d\n", h->frame_num, s->mb_x, s->mb_y);
- cbp = 0; /* avoid warning. FIXME: find a solution without slowing
- down the code */
- if(h->slice_type_nos != FF_I_TYPE){
- if(s->mb_skip_run==-1)
- s->mb_skip_run= get_ue_golomb(&s->gb);
-
- if (s->mb_skip_run--) {
- if(FRAME_MBAFF && (s->mb_y&1) == 0){
- if(s->mb_skip_run==0)
- h->mb_mbaff = h->mb_field_decoding_flag = get_bits1(&s->gb);
- else
- predict_field_decoding_flag(h);
- }
- decode_mb_skip(h);
- return 0;
- }
- }
- if(FRAME_MBAFF){
- if( (s->mb_y&1) == 0 )
- h->mb_mbaff = h->mb_field_decoding_flag = get_bits1(&s->gb);
- }
-
- h->prev_mb_skipped= 0;
-
- mb_type= get_ue_golomb(&s->gb);
- if(h->slice_type_nos == FF_B_TYPE){
- if(mb_type < 23){
- partition_count= b_mb_type_info[mb_type].partition_count;
- mb_type= b_mb_type_info[mb_type].type;
- }else{
- mb_type -= 23;
- goto decode_intra_mb;
- }
- }else if(h->slice_type_nos == FF_P_TYPE){
- if(mb_type < 5){
- partition_count= p_mb_type_info[mb_type].partition_count;
- mb_type= p_mb_type_info[mb_type].type;
- }else{
- mb_type -= 5;
- goto decode_intra_mb;
- }
- }else{
- assert(h->slice_type_nos == FF_I_TYPE);
- if(h->slice_type == FF_SI_TYPE && mb_type)
- mb_type--;
-decode_intra_mb:
- if(mb_type > 25){
- av_log(h->s.avctx, AV_LOG_ERROR, "mb_type %d in %c slice too large at %d %d\n", mb_type, av_get_pict_type_char(h->slice_type), s->mb_x, s->mb_y);
- return -1;
- }
- partition_count=0;
- cbp= i_mb_type_info[mb_type].cbp;
- h->intra16x16_pred_mode= i_mb_type_info[mb_type].pred_mode;
- mb_type= i_mb_type_info[mb_type].type;
- }
-
- if(MB_FIELD)
- mb_type |= MB_TYPE_INTERLACED;
-
- h->slice_table[ mb_xy ]= h->slice_num;
-
- if(IS_INTRA_PCM(mb_type)){
- unsigned int x;
-
- // We assume these blocks are very rare so we do not optimize it.
- align_get_bits(&s->gb);
-
- // The pixels are stored in the same order as levels in h->mb array.
- for(x=0; x < (CHROMA ? 384 : 256); x++){
- ((uint8_t*)h->mb)[x]= get_bits(&s->gb, 8);
- }
-
- // In deblocking, the quantizer is 0
- s->current_picture.qscale_table[mb_xy]= 0;
- // All coeffs are present
- memset(h->non_zero_count[mb_xy], 16, 16);
-
- s->current_picture.mb_type[mb_xy]= mb_type;
- return 0;
- }
-
- if(MB_MBAFF){
- h->ref_count[0] <<= 1;
- h->ref_count[1] <<= 1;
- }
-
- fill_caches(h, mb_type, 0);
-
- //mb_pred
- if(IS_INTRA(mb_type)){
- int pred_mode;
-// init_top_left_availability(h);
- if(IS_INTRA4x4(mb_type)){
- int i;
- int di = 1;
- if(dct8x8_allowed && get_bits1(&s->gb)){
- mb_type |= MB_TYPE_8x8DCT;
- di = 4;
- }
-
-// fill_intra4x4_pred_table(h);
- for(i=0; i<16; i+=di){
- int mode= pred_intra_mode(h, i);
-
- if(!get_bits1(&s->gb)){
- const int rem_mode= get_bits(&s->gb, 3);
- mode = rem_mode + (rem_mode >= mode);
- }
-
- if(di==4)
- fill_rectangle( &h->intra4x4_pred_mode_cache[ scan8[i] ], 2, 2, 8, mode, 1 );
- else
- h->intra4x4_pred_mode_cache[ scan8[i] ] = mode;
- }
- ff_h264_write_back_intra_pred_mode(h);
- if( check_intra4x4_pred_mode(h) < 0)
- return -1;
- }else{
- h->intra16x16_pred_mode= ff_h264_check_intra_pred_mode(h, h->intra16x16_pred_mode);
- if(h->intra16x16_pred_mode < 0)
- return -1;
- }
- if(CHROMA){
- pred_mode= ff_h264_check_intra_pred_mode(h, get_ue_golomb_31(&s->gb));
- if(pred_mode < 0)
- return -1;
- h->chroma_pred_mode= pred_mode;
- }
- }else if(partition_count==4){
- int i, j, sub_partition_count[4], list, ref[2][4];
-
- if(h->slice_type_nos == FF_B_TYPE){
- for(i=0; i<4; i++){
- h->sub_mb_type[i]= get_ue_golomb_31(&s->gb);
- if(h->sub_mb_type[i] >=13){
- av_log(h->s.avctx, AV_LOG_ERROR, "B sub_mb_type %u out of range at %d %d\n", h->sub_mb_type[i], s->mb_x, s->mb_y);
- return -1;
- }
- sub_partition_count[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
- h->sub_mb_type[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].type;
- }
- if( IS_DIRECT(h->sub_mb_type[0]) || IS_DIRECT(h->sub_mb_type[1])
- || IS_DIRECT(h->sub_mb_type[2]) || IS_DIRECT(h->sub_mb_type[3])) {
- ff_h264_pred_direct_motion(h, &mb_type);
- h->ref_cache[0][scan8[4]] =
- h->ref_cache[1][scan8[4]] =
- h->ref_cache[0][scan8[12]] =
- h->ref_cache[1][scan8[12]] = PART_NOT_AVAILABLE;
- }
- }else{
- assert(h->slice_type_nos == FF_P_TYPE); //FIXME SP correct ?
- for(i=0; i<4; i++){
- h->sub_mb_type[i]= get_ue_golomb_31(&s->gb);
- if(h->sub_mb_type[i] >=4){
- av_log(h->s.avctx, AV_LOG_ERROR, "P sub_mb_type %u out of range at %d %d\n", h->sub_mb_type[i], s->mb_x, s->mb_y);
- return -1;
- }
- sub_partition_count[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
- h->sub_mb_type[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].type;
- }
- }
-
- for(list=0; list<h->list_count; list++){
- int ref_count= IS_REF0(mb_type) ? 1 : h->ref_count[list];
- for(i=0; i<4; i++){
- if(IS_DIRECT(h->sub_mb_type[i])) continue;
- if(IS_DIR(h->sub_mb_type[i], 0, list)){
- unsigned int tmp;
- if(ref_count == 1){
- tmp= 0;
- }else if(ref_count == 2){
- tmp= get_bits1(&s->gb)^1;
- }else{
- tmp= get_ue_golomb_31(&s->gb);
- if(tmp>=ref_count){
- av_log(h->s.avctx, AV_LOG_ERROR, "ref %u overflow\n", tmp);
- return -1;
- }
- }
- ref[list][i]= tmp;
- }else{
- //FIXME
- ref[list][i] = -1;
- }
- }
- }
-
- if(dct8x8_allowed)
- dct8x8_allowed = get_dct8x8_allowed(h);
-
- for(list=0; list<h->list_count; list++){
- for(i=0; i<4; i++){
- if(IS_DIRECT(h->sub_mb_type[i])) {
- h->ref_cache[list][ scan8[4*i] ] = h->ref_cache[list][ scan8[4*i]+1 ];
- continue;
- }
- h->ref_cache[list][ scan8[4*i] ]=h->ref_cache[list][ scan8[4*i]+1 ]=
- h->ref_cache[list][ scan8[4*i]+8 ]=h->ref_cache[list][ scan8[4*i]+9 ]= ref[list][i];
-
- if(IS_DIR(h->sub_mb_type[i], 0, list)){
- const int sub_mb_type= h->sub_mb_type[i];
- const int block_width= (sub_mb_type & (MB_TYPE_16x16|MB_TYPE_16x8)) ? 2 : 1;
- for(j=0; j<sub_partition_count[i]; j++){
- int mx, my;
- const int index= 4*i + block_width*j;
- int16_t (* mv_cache)[2]= &h->mv_cache[list][ scan8[index] ];
- pred_motion(h, index, block_width, list, h->ref_cache[list][ scan8[index] ], &mx, &my);
- mx += get_se_golomb(&s->gb);
- my += get_se_golomb(&s->gb);
- tprintf(s->avctx, "final mv:%d %d\n", mx, my);
-
- if(IS_SUB_8X8(sub_mb_type)){
- mv_cache[ 1 ][0]=
- mv_cache[ 8 ][0]= mv_cache[ 9 ][0]= mx;
- mv_cache[ 1 ][1]=
- mv_cache[ 8 ][1]= mv_cache[ 9 ][1]= my;
- }else if(IS_SUB_8X4(sub_mb_type)){
- mv_cache[ 1 ][0]= mx;
- mv_cache[ 1 ][1]= my;
- }else if(IS_SUB_4X8(sub_mb_type)){
- mv_cache[ 8 ][0]= mx;
- mv_cache[ 8 ][1]= my;
- }
- mv_cache[ 0 ][0]= mx;
- mv_cache[ 0 ][1]= my;
- }
- }else{
- uint32_t *p= (uint32_t *)&h->mv_cache[list][ scan8[4*i] ][0];
- p[0] = p[1]=
- p[8] = p[9]= 0;
- }
- }
- }
- }else if(IS_DIRECT(mb_type)){
- ff_h264_pred_direct_motion(h, &mb_type);
- dct8x8_allowed &= h->sps.direct_8x8_inference_flag;
- }else{
- int list, mx, my, i;
- //FIXME we should set ref_idx_l? to 0 if we use that later ...
- if(IS_16X16(mb_type)){
- for(list=0; list<h->list_count; list++){
- unsigned int val;
- if(IS_DIR(mb_type, 0, list)){
- if(h->ref_count[list]==1){
- val= 0;
- }else if(h->ref_count[list]==2){
- val= get_bits1(&s->gb)^1;
- }else{
- val= get_ue_golomb_31(&s->gb);
- if(val >= h->ref_count[list]){
- av_log(h->s.avctx, AV_LOG_ERROR, "ref %u overflow\n", val);
- return -1;
- }
- }
- }else
- val= LIST_NOT_USED&0xFF;
- fill_rectangle(&h->ref_cache[list][ scan8[0] ], 4, 4, 8, val, 1);
- }
- for(list=0; list<h->list_count; list++){
- unsigned int val;
- if(IS_DIR(mb_type, 0, list)){
- pred_motion(h, 0, 4, list, h->ref_cache[list][ scan8[0] ], &mx, &my);
- mx += get_se_golomb(&s->gb);
- my += get_se_golomb(&s->gb);
- tprintf(s->avctx, "final mv:%d %d\n", mx, my);
-
- val= pack16to32(mx,my);
- }else
- val=0;
- fill_rectangle(h->mv_cache[list][ scan8[0] ], 4, 4, 8, val, 4);
- }
- }
- else if(IS_16X8(mb_type)){
- for(list=0; list<h->list_count; list++){
- for(i=0; i<2; i++){
- unsigned int val;
- if(IS_DIR(mb_type, i, list)){
- if(h->ref_count[list] == 1){
- val= 0;
- }else if(h->ref_count[list] == 2){
- val= get_bits1(&s->gb)^1;
- }else{
- val= get_ue_golomb_31(&s->gb);
- if(val >= h->ref_count[list]){
- av_log(h->s.avctx, AV_LOG_ERROR, "ref %u overflow\n", val);
- return -1;
- }
- }
- }else
- val= LIST_NOT_USED&0xFF;
- fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, val, 1);
- }
- }
- for(list=0; list<h->list_count; list++){
- for(i=0; i<2; i++){
- unsigned int val;
- if(IS_DIR(mb_type, i, list)){
- pred_16x8_motion(h, 8*i, list, h->ref_cache[list][scan8[0] + 16*i], &mx, &my);
- mx += get_se_golomb(&s->gb);
- my += get_se_golomb(&s->gb);
- tprintf(s->avctx, "final mv:%d %d\n", mx, my);
-
- val= pack16to32(mx,my);
- }else
- val=0;
- fill_rectangle(h->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, val, 4);
- }
- }
- }else{
- assert(IS_8X16(mb_type));
- for(list=0; list<h->list_count; list++){
- for(i=0; i<2; i++){
- unsigned int val;
- if(IS_DIR(mb_type, i, list)){ //FIXME optimize
- if(h->ref_count[list]==1){
- val= 0;
- }else if(h->ref_count[list]==2){
- val= get_bits1(&s->gb)^1;
- }else{
- val= get_ue_golomb_31(&s->gb);
- if(val >= h->ref_count[list]){
- av_log(h->s.avctx, AV_LOG_ERROR, "ref %u overflow\n", val);
- return -1;
- }
- }
- }else
- val= LIST_NOT_USED&0xFF;
- fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, val, 1);
- }
- }
- for(list=0; list<h->list_count; list++){
- for(i=0; i<2; i++){
- unsigned int val;
- if(IS_DIR(mb_type, i, list)){
- pred_8x16_motion(h, i*4, list, h->ref_cache[list][ scan8[0] + 2*i ], &mx, &my);
- mx += get_se_golomb(&s->gb);
- my += get_se_golomb(&s->gb);
- tprintf(s->avctx, "final mv:%d %d\n", mx, my);
-
- val= pack16to32(mx,my);
- }else
- val=0;
- fill_rectangle(h->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, val, 4);
- }
- }
- }
- }
-
- if(IS_INTER(mb_type))
- write_back_motion(h, mb_type);
-
- if(!IS_INTRA16x16(mb_type)){
- cbp= get_ue_golomb(&s->gb);
- if(cbp > 47){
- av_log(h->s.avctx, AV_LOG_ERROR, "cbp too large (%u) at %d %d\n", cbp, s->mb_x, s->mb_y);
- return -1;
- }
-
- if(CHROMA){
- if(IS_INTRA4x4(mb_type)) cbp= golomb_to_intra4x4_cbp[cbp];
- else cbp= golomb_to_inter_cbp [cbp];
- }else{
- if(IS_INTRA4x4(mb_type)) cbp= golomb_to_intra4x4_cbp_gray[cbp];
- else cbp= golomb_to_inter_cbp_gray[cbp];
- }
- }
- h->cbp = cbp;
-
- if(dct8x8_allowed && (cbp&15) && !IS_INTRA(mb_type)){
- if(get_bits1(&s->gb)){
- mb_type |= MB_TYPE_8x8DCT;
- h->cbp_table[mb_xy]= cbp;
- }
- }
- s->current_picture.mb_type[mb_xy]= mb_type;
-
- if(cbp || IS_INTRA16x16(mb_type)){
- int i8x8, i4x4, chroma_idx;
- int dquant;
- GetBitContext *gb= IS_INTRA(mb_type) ? h->intra_gb_ptr : h->inter_gb_ptr;
- const uint8_t *scan, *scan8x8, *dc_scan;
-
-// fill_non_zero_count_cache(h);
-
- if(IS_INTERLACED(mb_type)){
- scan8x8= s->qscale ? h->field_scan8x8_cavlc : h->field_scan8x8_cavlc_q0;
- scan= s->qscale ? h->field_scan : h->field_scan_q0;
- dc_scan= luma_dc_field_scan;
- }else{
- scan8x8= s->qscale ? h->zigzag_scan8x8_cavlc : h->zigzag_scan8x8_cavlc_q0;
- scan= s->qscale ? h->zigzag_scan : h->zigzag_scan_q0;
- dc_scan= luma_dc_zigzag_scan;
- }
-
- dquant= get_se_golomb(&s->gb);
-
- if( dquant > 25 || dquant < -26 ){
- av_log(h->s.avctx, AV_LOG_ERROR, "dquant out of range (%d) at %d %d\n", dquant, s->mb_x, s->mb_y);
- return -1;
- }
-
- s->qscale += dquant;
- if(((unsigned)s->qscale) > 51){
- if(s->qscale<0) s->qscale+= 52;
- else s->qscale-= 52;
- }
-
- h->chroma_qp[0]= get_chroma_qp(h, 0, s->qscale);
- h->chroma_qp[1]= get_chroma_qp(h, 1, s->qscale);
- if(IS_INTRA16x16(mb_type)){
- if( decode_residual(h, h->intra_gb_ptr, h->mb, LUMA_DC_BLOCK_INDEX, dc_scan, h->dequant4_coeff[0][s->qscale], 16) < 0){
- return -1; //FIXME continue if partitioned and other return -1 too
- }
-
- assert((cbp&15) == 0 || (cbp&15) == 15);
-
- if(cbp&15){
- for(i8x8=0; i8x8<4; i8x8++){
- for(i4x4=0; i4x4<4; i4x4++){
- const int index= i4x4 + 4*i8x8;
- if( decode_residual(h, h->intra_gb_ptr, h->mb + 16*index, index, scan + 1, h->dequant4_coeff[0][s->qscale], 15) < 0 ){
- return -1;
- }
- }
- }
- }else{
- fill_rectangle(&h->non_zero_count_cache[scan8[0]], 4, 4, 8, 0, 1);
- }
- }else{
- for(i8x8=0; i8x8<4; i8x8++){
- if(cbp & (1<<i8x8)){
- if(IS_8x8DCT(mb_type)){
- DCTELEM *buf = &h->mb[64*i8x8];
- uint8_t *nnz;
- for(i4x4=0; i4x4<4; i4x4++){
- if( decode_residual(h, gb, buf, i4x4+4*i8x8, scan8x8+16*i4x4,
- h->dequant8_coeff[IS_INTRA( mb_type ) ? 0:1][s->qscale], 16) <0 )
- return -1;
- }
- nnz= &h->non_zero_count_cache[ scan8[4*i8x8] ];
- nnz[0] += nnz[1] + nnz[8] + nnz[9];
- }else{
- for(i4x4=0; i4x4<4; i4x4++){
- const int index= i4x4 + 4*i8x8;
-
- if( decode_residual(h, gb, h->mb + 16*index, index, scan, h->dequant4_coeff[IS_INTRA( mb_type ) ? 0:3][s->qscale], 16) <0 ){
- return -1;
- }
- }
- }
- }else{
- uint8_t * const nnz= &h->non_zero_count_cache[ scan8[4*i8x8] ];
- nnz[0] = nnz[1] = nnz[8] = nnz[9] = 0;
- }
- }
- }
-
- if(cbp&0x30){
- for(chroma_idx=0; chroma_idx<2; chroma_idx++)
- if( decode_residual(h, gb, h->mb + 256 + 16*4*chroma_idx, CHROMA_DC_BLOCK_INDEX, chroma_dc_scan, NULL, 4) < 0){
- return -1;
- }
- }
-
- if(cbp&0x20){
- for(chroma_idx=0; chroma_idx<2; chroma_idx++){
- const uint32_t *qmul = h->dequant4_coeff[chroma_idx+1+(IS_INTRA( mb_type ) ? 0:3)][h->chroma_qp[chroma_idx]];
- for(i4x4=0; i4x4<4; i4x4++){
- const int index= 16 + 4*chroma_idx + i4x4;
- if( decode_residual(h, gb, h->mb + 16*index, index, scan + 1, qmul, 15) < 0){
- return -1;
- }
- }
- }
- }else{
- uint8_t * const nnz= &h->non_zero_count_cache[0];
- nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] =
- nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0;
- }
- }else{
- uint8_t * const nnz= &h->non_zero_count_cache[0];
- fill_rectangle(&nnz[scan8[0]], 4, 4, 8, 0, 1);
- nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] =
- nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0;
- }
- s->current_picture.qscale_table[mb_xy]= s->qscale;
- write_back_non_zero_count(h);
-
- if(MB_MBAFF){
- h->ref_count[0] >>= 1;
- h->ref_count[1] >>= 1;
- }
-
- return 0;
-}
-
-static int decode_cabac_field_decoding_flag(H264Context *h) {
- MpegEncContext * const s = &h->s;
- const int mb_x = s->mb_x;
- const int mb_y = s->mb_y & ~1;
- const int mba_xy = mb_x - 1 + mb_y *s->mb_stride;
- const int mbb_xy = mb_x + (mb_y-2)*s->mb_stride;
-
- unsigned int ctx = 0;
-
- if( h->slice_table[mba_xy] == h->slice_num && IS_INTERLACED( s->current_picture.mb_type[mba_xy] ) ) {
- ctx += 1;
- }
- if( h->slice_table[mbb_xy] == h->slice_num && IS_INTERLACED( s->current_picture.mb_type[mbb_xy] ) ) {
- ctx += 1;
- }
-
- return get_cabac_noinline( &h->cabac, &h->cabac_state[70 + ctx] );
-}
-
-static int decode_cabac_intra_mb_type(H264Context *h, int ctx_base, int intra_slice) {
- uint8_t *state= &h->cabac_state[ctx_base];
- int mb_type;
-
- if(intra_slice){
- MpegEncContext * const s = &h->s;
- const int mba_xy = h->left_mb_xy[0];
- const int mbb_xy = h->top_mb_xy;
- int ctx=0;
- if( h->slice_table[mba_xy] == h->slice_num && !IS_INTRA4x4( s->current_picture.mb_type[mba_xy] ) )
- ctx++;
- if( h->slice_table[mbb_xy] == h->slice_num && !IS_INTRA4x4( s->current_picture.mb_type[mbb_xy] ) )
- ctx++;
- if( get_cabac_noinline( &h->cabac, &state[ctx] ) == 0 )
- return 0; /* I4x4 */
- state += 2;
- }else{
- if( get_cabac_noinline( &h->cabac, &state[0] ) == 0 )
- return 0; /* I4x4 */
- }
-
- if( get_cabac_terminate( &h->cabac ) )
- return 25; /* PCM */
-
- mb_type = 1; /* I16x16 */
- mb_type += 12 * get_cabac_noinline( &h->cabac, &state[1] ); /* cbp_luma != 0 */
- if( get_cabac_noinline( &h->cabac, &state[2] ) ) /* cbp_chroma */
- mb_type += 4 + 4 * get_cabac_noinline( &h->cabac, &state[2+intra_slice] );
- mb_type += 2 * get_cabac_noinline( &h->cabac, &state[3+intra_slice] );
- mb_type += 1 * get_cabac_noinline( &h->cabac, &state[3+2*intra_slice] );
- return mb_type;
-}
-
-static int decode_cabac_mb_type_b( H264Context *h ) {
- MpegEncContext * const s = &h->s;
-
- const int mba_xy = h->left_mb_xy[0];
- const int mbb_xy = h->top_mb_xy;
- int ctx = 0;
- int bits;
- assert(h->slice_type_nos == FF_B_TYPE);
-
- if( h->slice_table[mba_xy] == h->slice_num && !IS_DIRECT( s->current_picture.mb_type[mba_xy] ) )
- ctx++;
- if( h->slice_table[mbb_xy] == h->slice_num && !IS_DIRECT( s->current_picture.mb_type[mbb_xy] ) )
- ctx++;
-
- if( !get_cabac_noinline( &h->cabac, &h->cabac_state[27+ctx] ) )
- return 0; /* B_Direct_16x16 */
-
- if( !get_cabac_noinline( &h->cabac, &h->cabac_state[27+3] ) ) {
- return 1 + get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] ); /* B_L[01]_16x16 */
- }
-
- bits = get_cabac_noinline( &h->cabac, &h->cabac_state[27+4] ) << 3;
- bits|= get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] ) << 2;
- bits|= get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] ) << 1;
- bits|= get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] );
- if( bits < 8 )
- return bits + 3; /* B_Bi_16x16 through B_L1_L0_16x8 */
- else if( bits == 13 ) {
- return decode_cabac_intra_mb_type(h, 32, 0) + 23;
- } else if( bits == 14 )
- return 11; /* B_L1_L0_8x16 */
- else if( bits == 15 )
- return 22; /* B_8x8 */
-
- bits= ( bits<<1 ) | get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] );
- return bits - 4; /* B_L0_Bi_* through B_Bi_Bi_* */
-}
-
-static int decode_cabac_mb_skip( H264Context *h, int mb_x, int mb_y ) {
- MpegEncContext * const s = &h->s;
- int mba_xy, mbb_xy;
- int ctx = 0;
-
- if(FRAME_MBAFF){ //FIXME merge with the stuff in fill_caches?
- int mb_xy = mb_x + (mb_y&~1)*s->mb_stride;
- mba_xy = mb_xy - 1;
- if( (mb_y&1)
- && h->slice_table[mba_xy] == h->slice_num
- && MB_FIELD == !!IS_INTERLACED( s->current_picture.mb_type[mba_xy] ) )
- mba_xy += s->mb_stride;
- if( MB_FIELD ){
- mbb_xy = mb_xy - s->mb_stride;
- if( !(mb_y&1)
- && h->slice_table[mbb_xy] == h->slice_num
- && IS_INTERLACED( s->current_picture.mb_type[mbb_xy] ) )
- mbb_xy -= s->mb_stride;
- }else
- mbb_xy = mb_x + (mb_y-1)*s->mb_stride;
- }else{
- int mb_xy = h->mb_xy;
- mba_xy = mb_xy - 1;
- mbb_xy = mb_xy - (s->mb_stride << FIELD_PICTURE);
- }
-
- if( h->slice_table[mba_xy] == h->slice_num && !IS_SKIP( s->current_picture.mb_type[mba_xy] ))
- ctx++;
- if( h->slice_table[mbb_xy] == h->slice_num && !IS_SKIP( s->current_picture.mb_type[mbb_xy] ))
- ctx++;
-
- if( h->slice_type_nos == FF_B_TYPE )
- ctx += 13;
- return get_cabac_noinline( &h->cabac, &h->cabac_state[11+ctx] );
-}
-
-static int decode_cabac_mb_intra4x4_pred_mode( H264Context *h, int pred_mode ) {
- int mode = 0;
-
- if( get_cabac( &h->cabac, &h->cabac_state[68] ) )
- return pred_mode;
-
- mode += 1 * get_cabac( &h->cabac, &h->cabac_state[69] );
- mode += 2 * get_cabac( &h->cabac, &h->cabac_state[69] );
- mode += 4 * get_cabac( &h->cabac, &h->cabac_state[69] );
-
- if( mode >= pred_mode )
- return mode + 1;
- else
- return mode;
-}
-
-static int decode_cabac_mb_chroma_pre_mode( H264Context *h) {
- const int mba_xy = h->left_mb_xy[0];
- const int mbb_xy = h->top_mb_xy;
-
- int ctx = 0;
-
- /* No need to test for IS_INTRA4x4 and IS_INTRA16x16, as we set chroma_pred_mode_table to 0 */
- if( h->slice_table[mba_xy] == h->slice_num && h->chroma_pred_mode_table[mba_xy] != 0 )
- ctx++;
-
- if( h->slice_table[mbb_xy] == h->slice_num && h->chroma_pred_mode_table[mbb_xy] != 0 )
- ctx++;
-
- if( get_cabac_noinline( &h->cabac, &h->cabac_state[64+ctx] ) == 0 )
- return 0;
-
- if( get_cabac_noinline( &h->cabac, &h->cabac_state[64+3] ) == 0 )
- return 1;
- if( get_cabac_noinline( &h->cabac, &h->cabac_state[64+3] ) == 0 )
- return 2;
- else
- return 3;
-}
-
-static int decode_cabac_mb_cbp_luma( H264Context *h) {
- int cbp_b, cbp_a, ctx, cbp = 0;
-
- cbp_a = h->slice_table[h->left_mb_xy[0]] == h->slice_num ? h->left_cbp : -1;
- cbp_b = h->slice_table[h->top_mb_xy] == h->slice_num ? h->top_cbp : -1;
-
- ctx = !(cbp_a & 0x02) + 2 * !(cbp_b & 0x04);
- cbp |= get_cabac_noinline(&h->cabac, &h->cabac_state[73 + ctx]);
- ctx = !(cbp & 0x01) + 2 * !(cbp_b & 0x08);
- cbp |= get_cabac_noinline(&h->cabac, &h->cabac_state[73 + ctx]) << 1;
- ctx = !(cbp_a & 0x08) + 2 * !(cbp & 0x01);
- cbp |= get_cabac_noinline(&h->cabac, &h->cabac_state[73 + ctx]) << 2;
- ctx = !(cbp & 0x04) + 2 * !(cbp & 0x02);
- cbp |= get_cabac_noinline(&h->cabac, &h->cabac_state[73 + ctx]) << 3;
- return cbp;
-}
-static int decode_cabac_mb_cbp_chroma( H264Context *h) {
- int ctx;
- int cbp_a, cbp_b;
-
- cbp_a = (h->left_cbp>>4)&0x03;
- cbp_b = (h-> top_cbp>>4)&0x03;
-
- ctx = 0;
- if( cbp_a > 0 ) ctx++;
- if( cbp_b > 0 ) ctx += 2;
- if( get_cabac_noinline( &h->cabac, &h->cabac_state[77 + ctx] ) == 0 )
- return 0;
-
- ctx = 4;
- if( cbp_a == 2 ) ctx++;
- if( cbp_b == 2 ) ctx += 2;
- return 1 + get_cabac_noinline( &h->cabac, &h->cabac_state[77 + ctx] );
-}
-static int decode_cabac_mb_dqp( H264Context *h) {
- int ctx= h->last_qscale_diff != 0;
- int val = 0;
-
- while( get_cabac_noinline( &h->cabac, &h->cabac_state[60 + ctx] ) ) {
- ctx= 2+(ctx>>1);
- val++;
- if(val > 102) //prevent infinite loop
- return INT_MIN;
- }
-
- if( val&0x01 )
- return (val + 1)>>1 ;
- else
- return -((val + 1)>>1);
-}
-static int decode_cabac_p_mb_sub_type( H264Context *h ) {
- if( get_cabac( &h->cabac, &h->cabac_state[21] ) )
- return 0; /* 8x8 */
- if( !get_cabac( &h->cabac, &h->cabac_state[22] ) )
- return 1; /* 8x4 */
- if( get_cabac( &h->cabac, &h->cabac_state[23] ) )
- return 2; /* 4x8 */
- return 3; /* 4x4 */
-}
-static int decode_cabac_b_mb_sub_type( H264Context *h ) {
- int type;
- if( !get_cabac( &h->cabac, &h->cabac_state[36] ) )
- return 0; /* B_Direct_8x8 */
- if( !get_cabac( &h->cabac, &h->cabac_state[37] ) )
- return 1 + get_cabac( &h->cabac, &h->cabac_state[39] ); /* B_L0_8x8, B_L1_8x8 */
- type = 3;
- if( get_cabac( &h->cabac, &h->cabac_state[38] ) ) {
- if( get_cabac( &h->cabac, &h->cabac_state[39] ) )
- return 11 + get_cabac( &h->cabac, &h->cabac_state[39] ); /* B_L1_4x4, B_Bi_4x4 */
- type += 4;
- }
- type += 2*get_cabac( &h->cabac, &h->cabac_state[39] );
- type += get_cabac( &h->cabac, &h->cabac_state[39] );
- return type;
-}
-
-static inline int decode_cabac_mb_transform_size( H264Context *h ) {
- return get_cabac_noinline( &h->cabac, &h->cabac_state[399 + h->neighbor_transform_size] );
-}
-
-static int decode_cabac_mb_ref( H264Context *h, int list, int n ) {
- int refa = h->ref_cache[list][scan8[n] - 1];
- int refb = h->ref_cache[list][scan8[n] - 8];
- int ref = 0;
- int ctx = 0;
-
- if( h->slice_type_nos == FF_B_TYPE) {
- if( refa > 0 && !h->direct_cache[scan8[n] - 1] )
- ctx++;
- if( refb > 0 && !h->direct_cache[scan8[n] - 8] )
- ctx += 2;
- } else {
- if( refa > 0 )
- ctx++;
- if( refb > 0 )
- ctx += 2;
- }
-
- while( get_cabac( &h->cabac, &h->cabac_state[54+ctx] ) ) {
- ref++;
- ctx = (ctx>>2)+4;
- if(ref >= 32 /*h->ref_list[list]*/){
- return -1;
- }
- }
- return ref;
-}
-
-static int decode_cabac_mb_mvd( H264Context *h, int list, int n, int l ) {
- int amvd = abs( h->mvd_cache[list][scan8[n] - 1][l] ) +
- abs( h->mvd_cache[list][scan8[n] - 8][l] );
- int ctxbase = (l == 0) ? 40 : 47;
- int mvd;
- int ctx = (amvd>2) + (amvd>32);
-
- if(!get_cabac(&h->cabac, &h->cabac_state[ctxbase+ctx]))
- return 0;
-
- mvd= 1;
- ctx= 3;
- while( mvd < 9 && get_cabac( &h->cabac, &h->cabac_state[ctxbase+ctx] ) ) {
- mvd++;
- if( ctx < 6 )
- ctx++;
- }
-
- if( mvd >= 9 ) {
- int k = 3;
- while( get_cabac_bypass( &h->cabac ) ) {
- mvd += 1 << k;
- k++;
- if(k>24){
- av_log(h->s.avctx, AV_LOG_ERROR, "overflow in decode_cabac_mb_mvd\n");
- return INT_MIN;
- }
- }
- while( k-- ) {
- if( get_cabac_bypass( &h->cabac ) )
- mvd += 1 << k;
- }
- }
- return get_cabac_bypass_sign( &h->cabac, -mvd );
-}
-
-static av_always_inline int get_cabac_cbf_ctx( H264Context *h, int cat, int idx, int is_dc ) {
- int nza, nzb;
- int ctx = 0;
-
- if( is_dc ) {
- if( cat == 0 ) {
- nza = h->left_cbp&0x100;
- nzb = h-> top_cbp&0x100;
- } else {
- nza = (h->left_cbp>>(6+idx))&0x01;
- nzb = (h-> top_cbp>>(6+idx))&0x01;
- }
- } else {
- assert(cat == 1 || cat == 2 || cat == 4);
- nza = h->non_zero_count_cache[scan8[idx] - 1];
- nzb = h->non_zero_count_cache[scan8[idx] - 8];
- }
-
- if( nza > 0 )
- ctx++;
-
- if( nzb > 0 )
- ctx += 2;
-
- return ctx + 4 * cat;
-}
-
-DECLARE_ASM_CONST(1, uint8_t, last_coeff_flag_offset_8x8[63]) = {
- 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4,
- 5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8
-};
-
-static av_always_inline void decode_cabac_residual_internal( H264Context *h, DCTELEM *block, int cat, int n, const uint8_t *scantable, const uint32_t *qmul, int max_coeff, int is_dc ) {
- static const int significant_coeff_flag_offset[2][6] = {
- { 105+0, 105+15, 105+29, 105+44, 105+47, 402 },
- { 277+0, 277+15, 277+29, 277+44, 277+47, 436 }
- };
- static const int last_coeff_flag_offset[2][6] = {
- { 166+0, 166+15, 166+29, 166+44, 166+47, 417 },
- { 338+0, 338+15, 338+29, 338+44, 338+47, 451 }
- };
- static const int coeff_abs_level_m1_offset[6] = {
- 227+0, 227+10, 227+20, 227+30, 227+39, 426
- };
- static const uint8_t significant_coeff_flag_offset_8x8[2][63] = {
- { 0, 1, 2, 3, 4, 5, 5, 4, 4, 3, 3, 4, 4, 4, 5, 5,
- 4, 4, 4, 4, 3, 3, 6, 7, 7, 7, 8, 9,10, 9, 8, 7,
- 7, 6,11,12,13,11, 6, 7, 8, 9,14,10, 9, 8, 6,11,
- 12,13,11, 6, 9,14,10, 9,11,12,13,11,14,10,12 },
- { 0, 1, 1, 2, 2, 3, 3, 4, 5, 6, 7, 7, 7, 8, 4, 5,
- 6, 9,10,10, 8,11,12,11, 9, 9,10,10, 8,11,12,11,
- 9, 9,10,10, 8,11,12,11, 9, 9,10,10, 8,13,13, 9,
- 9,10,10, 8,13,13, 9, 9,10,10,14,14,14,14,14 }
- };
- /* node ctx: 0..3: abslevel1 (with abslevelgt1 == 0).
- * 4..7: abslevelgt1 + 3 (and abslevel1 doesn't matter).
- * map node ctx => cabac ctx for level=1 */
- static const uint8_t coeff_abs_level1_ctx[8] = { 1, 2, 3, 4, 0, 0, 0, 0 };
- /* map node ctx => cabac ctx for level>1 */
- static const uint8_t coeff_abs_levelgt1_ctx[8] = { 5, 5, 5, 5, 6, 7, 8, 9 };
- static const uint8_t coeff_abs_level_transition[2][8] = {
- /* update node ctx after decoding a level=1 */
- { 1, 2, 3, 3, 4, 5, 6, 7 },
- /* update node ctx after decoding a level>1 */
- { 4, 4, 4, 4, 5, 6, 7, 7 }
- };
-
- int index[64];
-
- int av_unused last;
- int coeff_count = 0;
- int node_ctx = 0;
-
- uint8_t *significant_coeff_ctx_base;
- uint8_t *last_coeff_ctx_base;
- uint8_t *abs_level_m1_ctx_base;
-
-#if !ARCH_X86
-#define CABAC_ON_STACK
-#endif
-#ifdef CABAC_ON_STACK
-#define CC &cc
- CABACContext cc;
- cc.range = h->cabac.range;
- cc.low = h->cabac.low;
- cc.bytestream= h->cabac.bytestream;
-#else
-#define CC &h->cabac
-#endif
-
-
- /* cat: 0-> DC 16x16 n = 0
- * 1-> AC 16x16 n = luma4x4idx
- * 2-> Luma4x4 n = luma4x4idx
- * 3-> DC Chroma n = iCbCr
- * 4-> AC Chroma n = 16 + 4 * iCbCr + chroma4x4idx
- * 5-> Luma8x8 n = 4 * luma8x8idx
- */
-
- /* read coded block flag */
- if( is_dc || cat != 5 ) {
- if( get_cabac( CC, &h->cabac_state[85 + get_cabac_cbf_ctx( h, cat, n, is_dc ) ] ) == 0 ) {
- if( !is_dc )
- h->non_zero_count_cache[scan8[n]] = 0;
-
-#ifdef CABAC_ON_STACK
- h->cabac.range = cc.range ;
- h->cabac.low = cc.low ;
- h->cabac.bytestream= cc.bytestream;
-#endif
- return;
- }
- }
-
- significant_coeff_ctx_base = h->cabac_state
- + significant_coeff_flag_offset[MB_FIELD][cat];
- last_coeff_ctx_base = h->cabac_state
- + last_coeff_flag_offset[MB_FIELD][cat];
- abs_level_m1_ctx_base = h->cabac_state
- + coeff_abs_level_m1_offset[cat];
-
- if( !is_dc && cat == 5 ) {
-#define DECODE_SIGNIFICANCE( coefs, sig_off, last_off ) \
- for(last= 0; last < coefs; last++) { \
- uint8_t *sig_ctx = significant_coeff_ctx_base + sig_off; \
- if( get_cabac( CC, sig_ctx )) { \
- uint8_t *last_ctx = last_coeff_ctx_base + last_off; \
- index[coeff_count++] = last; \
- if( get_cabac( CC, last_ctx ) ) { \
- last= max_coeff; \
- break; \
- } \
- } \
- }\
- if( last == max_coeff -1 ) {\
- index[coeff_count++] = last;\
- }
- const uint8_t *sig_off = significant_coeff_flag_offset_8x8[MB_FIELD];
-#if ARCH_X86 && HAVE_7REGS && HAVE_EBX_AVAILABLE && !defined(BROKEN_RELOCATIONS)
- coeff_count= decode_significance_8x8_x86(CC, significant_coeff_ctx_base, index, sig_off);
- } else {
- coeff_count= decode_significance_x86(CC, max_coeff, significant_coeff_ctx_base, index);
-#else
- DECODE_SIGNIFICANCE( 63, sig_off[last], last_coeff_flag_offset_8x8[last] );
- } else {
- DECODE_SIGNIFICANCE( max_coeff - 1, last, last );
-#endif
- }
- assert(coeff_count > 0);
-
- if( is_dc ) {
- if( cat == 0 )
- h->cbp_table[h->mb_xy] |= 0x100;
- else
- h->cbp_table[h->mb_xy] |= 0x40 << n;
- } else {
- if( cat == 5 )
- fill_rectangle(&h->non_zero_count_cache[scan8[n]], 2, 2, 8, coeff_count, 1);
- else {
- assert( cat == 1 || cat == 2 || cat == 4 );
- h->non_zero_count_cache[scan8[n]] = coeff_count;
- }
- }
-
- do {
- uint8_t *ctx = coeff_abs_level1_ctx[node_ctx] + abs_level_m1_ctx_base;
-
- int j= scantable[index[--coeff_count]];
-
- if( get_cabac( CC, ctx ) == 0 ) {
- node_ctx = coeff_abs_level_transition[0][node_ctx];
- if( is_dc ) {
- block[j] = get_cabac_bypass_sign( CC, -1);
- }else{
- block[j] = (get_cabac_bypass_sign( CC, -qmul[j]) + 32) >> 6;
- }
- } else {
- int coeff_abs = 2;
- ctx = coeff_abs_levelgt1_ctx[node_ctx] + abs_level_m1_ctx_base;
- node_ctx = coeff_abs_level_transition[1][node_ctx];
-
- while( coeff_abs < 15 && get_cabac( CC, ctx ) ) {
- coeff_abs++;
- }
-
- if( coeff_abs >= 15 ) {
- int j = 0;
- while( get_cabac_bypass( CC ) ) {
- j++;
- }
-
- coeff_abs=1;
- while( j-- ) {
- coeff_abs += coeff_abs + get_cabac_bypass( CC );
- }
- coeff_abs+= 14;
- }
-
- if( is_dc ) {
- block[j] = get_cabac_bypass_sign( CC, -coeff_abs );
- }else{
- block[j] = (get_cabac_bypass_sign( CC, -coeff_abs ) * qmul[j] + 32) >> 6;
- }
- }
- } while( coeff_count );
-#ifdef CABAC_ON_STACK
- h->cabac.range = cc.range ;
- h->cabac.low = cc.low ;
- h->cabac.bytestream= cc.bytestream;
-#endif
-
-}
-
-#if !CONFIG_SMALL
-static void decode_cabac_residual_dc( H264Context *h, DCTELEM *block, int cat, int n, const uint8_t *scantable, const uint32_t *qmul, int max_coeff ) {
- decode_cabac_residual_internal(h, block, cat, n, scantable, qmul, max_coeff, 1);
-}
-
-static void decode_cabac_residual_nondc( H264Context *h, DCTELEM *block, int cat, int n, const uint8_t *scantable, const uint32_t *qmul, int max_coeff ) {
- decode_cabac_residual_internal(h, block, cat, n, scantable, qmul, max_coeff, 0);
-}
-#endif
-
-static void decode_cabac_residual( H264Context *h, DCTELEM *block, int cat, int n, const uint8_t *scantable, const uint32_t *qmul, int max_coeff ) {
-#if CONFIG_SMALL
- decode_cabac_residual_internal(h, block, cat, n, scantable, qmul, max_coeff, cat == 0 || cat == 3);
-#else
- if( cat == 0 || cat == 3 ) decode_cabac_residual_dc(h, block, cat, n, scantable, qmul, max_coeff);
- else decode_cabac_residual_nondc(h, block, cat, n, scantable, qmul, max_coeff);
-#endif
-}
-
-static inline void compute_mb_neighbors(H264Context *h)
-{
- MpegEncContext * const s = &h->s;
- const int mb_xy = h->mb_xy;
- h->top_mb_xy = mb_xy - s->mb_stride;
- h->left_mb_xy[0] = mb_xy - 1;
- if(FRAME_MBAFF){
- const int pair_xy = s->mb_x + (s->mb_y & ~1)*s->mb_stride;
- const int top_pair_xy = pair_xy - s->mb_stride;
- const int top_mb_field_flag = IS_INTERLACED(s->current_picture.mb_type[top_pair_xy]);
- const int left_mb_field_flag = IS_INTERLACED(s->current_picture.mb_type[pair_xy-1]);
- const int curr_mb_field_flag = MB_FIELD;
- const int bottom = (s->mb_y & 1);
-
- if (curr_mb_field_flag && (bottom || top_mb_field_flag)){
- h->top_mb_xy -= s->mb_stride;
- }
- if (!left_mb_field_flag == curr_mb_field_flag) {
- h->left_mb_xy[0] = pair_xy - 1;
- }
- } else if (FIELD_PICTURE) {
- h->top_mb_xy -= s->mb_stride;
- }
- return;
-}
-
-/**
- * decodes a macroblock
- * @returns 0 if OK, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
- */
-static int decode_mb_cabac(H264Context *h) {
- MpegEncContext * const s = &h->s;
- int mb_xy;
- int mb_type, partition_count, cbp = 0;
- int dct8x8_allowed= h->pps.transform_8x8_mode;
-
- mb_xy = h->mb_xy = s->mb_x + s->mb_y*s->mb_stride;
-
- tprintf(s->avctx, "pic:%d mb:%d/%d\n", h->frame_num, s->mb_x, s->mb_y);
- if( h->slice_type_nos != FF_I_TYPE ) {
- int skip;
- /* a skipped mb needs the aff flag from the following mb */
- if( FRAME_MBAFF && s->mb_x==0 && (s->mb_y&1)==0 )
- predict_field_decoding_flag(h);
- if( FRAME_MBAFF && (s->mb_y&1)==1 && h->prev_mb_skipped )
- skip = h->next_mb_skipped;
- else
- skip = decode_cabac_mb_skip( h, s->mb_x, s->mb_y );
- /* read skip flags */
- if( skip ) {
- if( FRAME_MBAFF && (s->mb_y&1)==0 ){
- s->current_picture.mb_type[mb_xy] = MB_TYPE_SKIP;
- h->next_mb_skipped = decode_cabac_mb_skip( h, s->mb_x, s->mb_y+1 );
- if(!h->next_mb_skipped)
- h->mb_mbaff = h->mb_field_decoding_flag = decode_cabac_field_decoding_flag(h);
- }
-
- decode_mb_skip(h);
-
- h->cbp_table[mb_xy] = 0;
- h->chroma_pred_mode_table[mb_xy] = 0;
- h->last_qscale_diff = 0;
-
- return 0;
-
- }
- }
- if(FRAME_MBAFF){
- if( (s->mb_y&1) == 0 )
- h->mb_mbaff =
- h->mb_field_decoding_flag = decode_cabac_field_decoding_flag(h);
- }
-
- h->prev_mb_skipped = 0;
-
- compute_mb_neighbors(h);
-
- if( h->slice_type_nos == FF_B_TYPE ) {
- mb_type = decode_cabac_mb_type_b( h );
- if( mb_type < 23 ){
- partition_count= b_mb_type_info[mb_type].partition_count;
- mb_type= b_mb_type_info[mb_type].type;
- }else{
- mb_type -= 23;
- goto decode_intra_mb;
- }
- } else if( h->slice_type_nos == FF_P_TYPE ) {
- if( get_cabac_noinline( &h->cabac, &h->cabac_state[14] ) == 0 ) {
- /* P-type */
- if( get_cabac_noinline( &h->cabac, &h->cabac_state[15] ) == 0 ) {
- /* P_L0_D16x16, P_8x8 */
- mb_type= 3 * get_cabac_noinline( &h->cabac, &h->cabac_state[16] );
- } else {
- /* P_L0_D8x16, P_L0_D16x8 */
- mb_type= 2 - get_cabac_noinline( &h->cabac, &h->cabac_state[17] );
- }
- partition_count= p_mb_type_info[mb_type].partition_count;
- mb_type= p_mb_type_info[mb_type].type;
- } else {
- mb_type= decode_cabac_intra_mb_type(h, 17, 0);
- goto decode_intra_mb;
- }
- } else {
- mb_type= decode_cabac_intra_mb_type(h, 3, 1);
- if(h->slice_type == FF_SI_TYPE && mb_type)
- mb_type--;
- assert(h->slice_type_nos == FF_I_TYPE);
-decode_intra_mb:
- partition_count = 0;
- cbp= i_mb_type_info[mb_type].cbp;
- h->intra16x16_pred_mode= i_mb_type_info[mb_type].pred_mode;
- mb_type= i_mb_type_info[mb_type].type;
- }
- if(MB_FIELD)
- mb_type |= MB_TYPE_INTERLACED;
-
- h->slice_table[ mb_xy ]= h->slice_num;
-
- if(IS_INTRA_PCM(mb_type)) {
- const uint8_t *ptr;
-
- // We assume these blocks are very rare so we do not optimize it.
- // FIXME The two following lines get the bitstream position in the cabac
- // decode, I think it should be done by a function in cabac.h (or cabac.c).
- ptr= h->cabac.bytestream;
- if(h->cabac.low&0x1) ptr--;
- if(CABAC_BITS==16){
- if(h->cabac.low&0x1FF) ptr--;
- }
-
- // The pixels are stored in the same order as levels in h->mb array.
- memcpy(h->mb, ptr, 256); ptr+=256;
- if(CHROMA){
- memcpy(h->mb+128, ptr, 128); ptr+=128;
- }
-
- ff_init_cabac_decoder(&h->cabac, ptr, h->cabac.bytestream_end - ptr);
-
- // All blocks are present
- h->cbp_table[mb_xy] = 0x1ef;
- h->chroma_pred_mode_table[mb_xy] = 0;
- // In deblocking, the quantizer is 0
- s->current_picture.qscale_table[mb_xy]= 0;
- // All coeffs are present
- memset(h->non_zero_count[mb_xy], 16, 16);
- s->current_picture.mb_type[mb_xy]= mb_type;
- h->last_qscale_diff = 0;
- return 0;
- }
-
- if(MB_MBAFF){
- h->ref_count[0] <<= 1;
- h->ref_count[1] <<= 1;
- }
-
- fill_caches(h, mb_type, 0);
-
- if( IS_INTRA( mb_type ) ) {
- int i, pred_mode;
- if( IS_INTRA4x4( mb_type ) ) {
- if( dct8x8_allowed && decode_cabac_mb_transform_size( h ) ) {
- mb_type |= MB_TYPE_8x8DCT;
- for( i = 0; i < 16; i+=4 ) {
- int pred = pred_intra_mode( h, i );
- int mode = decode_cabac_mb_intra4x4_pred_mode( h, pred );
- fill_rectangle( &h->intra4x4_pred_mode_cache[ scan8[i] ], 2, 2, 8, mode, 1 );
- }
- } else {
- for( i = 0; i < 16; i++ ) {
- int pred = pred_intra_mode( h, i );
- h->intra4x4_pred_mode_cache[ scan8[i] ] = decode_cabac_mb_intra4x4_pred_mode( h, pred );
-
- //av_log( s->avctx, AV_LOG_ERROR, "i4x4 pred=%d mode=%d\n", pred, h->intra4x4_pred_mode_cache[ scan8[i] ] );
- }
- }
- ff_h264_write_back_intra_pred_mode(h);
- if( check_intra4x4_pred_mode(h) < 0 ) return -1;
- } else {
- h->intra16x16_pred_mode= ff_h264_check_intra_pred_mode( h, h->intra16x16_pred_mode );
- if( h->intra16x16_pred_mode < 0 ) return -1;
- }
- if(CHROMA){
- h->chroma_pred_mode_table[mb_xy] =
- pred_mode = decode_cabac_mb_chroma_pre_mode( h );
-
- pred_mode= ff_h264_check_intra_pred_mode( h, pred_mode );
- if( pred_mode < 0 ) return -1;
- h->chroma_pred_mode= pred_mode;
- }
- } else if( partition_count == 4 ) {
- int i, j, sub_partition_count[4], list, ref[2][4];
-
- if( h->slice_type_nos == FF_B_TYPE ) {
- for( i = 0; i < 4; i++ ) {
- h->sub_mb_type[i] = decode_cabac_b_mb_sub_type( h );
- sub_partition_count[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
- h->sub_mb_type[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].type;
- }
- if( IS_DIRECT(h->sub_mb_type[0] | h->sub_mb_type[1] |
- h->sub_mb_type[2] | h->sub_mb_type[3]) ) {
- ff_h264_pred_direct_motion(h, &mb_type);
- h->ref_cache[0][scan8[4]] =
- h->ref_cache[1][scan8[4]] =
- h->ref_cache[0][scan8[12]] =
- h->ref_cache[1][scan8[12]] = PART_NOT_AVAILABLE;
- if( h->ref_count[0] > 1 || h->ref_count[1] > 1 ) {
- for( i = 0; i < 4; i++ )
- if( IS_DIRECT(h->sub_mb_type[i]) )
- fill_rectangle( &h->direct_cache[scan8[4*i]], 2, 2, 8, 1, 1 );
- }
- }
- } else {
- for( i = 0; i < 4; i++ ) {
- h->sub_mb_type[i] = decode_cabac_p_mb_sub_type( h );
- sub_partition_count[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
- h->sub_mb_type[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].type;
- }
- }
-
- for( list = 0; list < h->list_count; list++ ) {
- for( i = 0; i < 4; i++ ) {
- if(IS_DIRECT(h->sub_mb_type[i])) continue;
- if(IS_DIR(h->sub_mb_type[i], 0, list)){
- if( h->ref_count[list] > 1 ){
- ref[list][i] = decode_cabac_mb_ref( h, list, 4*i );
- if(ref[list][i] >= (unsigned)h->ref_count[list]){
- av_log(s->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref[list][i], h->ref_count[list]);
- return -1;
- }
- }else
- ref[list][i] = 0;
- } else {
- ref[list][i] = -1;
- }
- h->ref_cache[list][ scan8[4*i]+1 ]=
- h->ref_cache[list][ scan8[4*i]+8 ]=h->ref_cache[list][ scan8[4*i]+9 ]= ref[list][i];
- }
- }
-
- if(dct8x8_allowed)
- dct8x8_allowed = get_dct8x8_allowed(h);
-
- for(list=0; list<h->list_count; list++){
- for(i=0; i<4; i++){
- h->ref_cache[list][ scan8[4*i] ]=h->ref_cache[list][ scan8[4*i]+1 ];
- if(IS_DIRECT(h->sub_mb_type[i])){
- fill_rectangle(h->mvd_cache[list][scan8[4*i]], 2, 2, 8, 0, 4);
- continue;
- }
-
- if(IS_DIR(h->sub_mb_type[i], 0, list) && !IS_DIRECT(h->sub_mb_type[i])){
- const int sub_mb_type= h->sub_mb_type[i];
- const int block_width= (sub_mb_type & (MB_TYPE_16x16|MB_TYPE_16x8)) ? 2 : 1;
- for(j=0; j<sub_partition_count[i]; j++){
- int mpx, mpy;
- int mx, my;
- const int index= 4*i + block_width*j;
- int16_t (* mv_cache)[2]= &h->mv_cache[list][ scan8[index] ];
- int16_t (* mvd_cache)[2]= &h->mvd_cache[list][ scan8[index] ];
- pred_motion(h, index, block_width, list, h->ref_cache[list][ scan8[index] ], &mpx, &mpy);
-
- mx = mpx + decode_cabac_mb_mvd( h, list, index, 0 );
- my = mpy + decode_cabac_mb_mvd( h, list, index, 1 );
- tprintf(s->avctx, "final mv:%d %d\n", mx, my);
-
- if(IS_SUB_8X8(sub_mb_type)){
- mv_cache[ 1 ][0]=
- mv_cache[ 8 ][0]= mv_cache[ 9 ][0]= mx;
- mv_cache[ 1 ][1]=
- mv_cache[ 8 ][1]= mv_cache[ 9 ][1]= my;
-
- mvd_cache[ 1 ][0]=
- mvd_cache[ 8 ][0]= mvd_cache[ 9 ][0]= mx - mpx;
- mvd_cache[ 1 ][1]=
- mvd_cache[ 8 ][1]= mvd_cache[ 9 ][1]= my - mpy;
- }else if(IS_SUB_8X4(sub_mb_type)){
- mv_cache[ 1 ][0]= mx;
- mv_cache[ 1 ][1]= my;
-
- mvd_cache[ 1 ][0]= mx - mpx;
- mvd_cache[ 1 ][1]= my - mpy;
- }else if(IS_SUB_4X8(sub_mb_type)){
- mv_cache[ 8 ][0]= mx;
- mv_cache[ 8 ][1]= my;
-
- mvd_cache[ 8 ][0]= mx - mpx;
- mvd_cache[ 8 ][1]= my - mpy;
- }
- mv_cache[ 0 ][0]= mx;
- mv_cache[ 0 ][1]= my;
-
- mvd_cache[ 0 ][0]= mx - mpx;
- mvd_cache[ 0 ][1]= my - mpy;
- }
- }else{
- uint32_t *p= (uint32_t *)&h->mv_cache[list][ scan8[4*i] ][0];
- uint32_t *pd= (uint32_t *)&h->mvd_cache[list][ scan8[4*i] ][0];
- p[0] = p[1] = p[8] = p[9] = 0;
- pd[0]= pd[1]= pd[8]= pd[9]= 0;
- }
- }
- }
- } else if( IS_DIRECT(mb_type) ) {
- ff_h264_pred_direct_motion(h, &mb_type);
- fill_rectangle(h->mvd_cache[0][scan8[0]], 4, 4, 8, 0, 4);
- fill_rectangle(h->mvd_cache[1][scan8[0]], 4, 4, 8, 0, 4);
- dct8x8_allowed &= h->sps.direct_8x8_inference_flag;
- } else {
- int list, mx, my, i, mpx, mpy;
- if(IS_16X16(mb_type)){
- for(list=0; list<h->list_count; list++){
- if(IS_DIR(mb_type, 0, list)){
- int ref;
- if(h->ref_count[list] > 1){
- ref= decode_cabac_mb_ref(h, list, 0);
- if(ref >= (unsigned)h->ref_count[list]){
- av_log(s->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref, h->ref_count[list]);
- return -1;
- }
- }else
- ref=0;
- fill_rectangle(&h->ref_cache[list][ scan8[0] ], 4, 4, 8, ref, 1);
- }else
- fill_rectangle(&h->ref_cache[list][ scan8[0] ], 4, 4, 8, (uint8_t)LIST_NOT_USED, 1); //FIXME factorize and the other fill_rect below too
- }
- for(list=0; list<h->list_count; list++){
- if(IS_DIR(mb_type, 0, list)){
- pred_motion(h, 0, 4, list, h->ref_cache[list][ scan8[0] ], &mpx, &mpy);
-
- mx = mpx + decode_cabac_mb_mvd( h, list, 0, 0 );
- my = mpy + decode_cabac_mb_mvd( h, list, 0, 1 );
- tprintf(s->avctx, "final mv:%d %d\n", mx, my);
-
- fill_rectangle(h->mvd_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx-mpx,my-mpy), 4);
- fill_rectangle(h->mv_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx,my), 4);
- }else
- fill_rectangle(h->mv_cache[list][ scan8[0] ], 4, 4, 8, 0, 4);
- }
- }
- else if(IS_16X8(mb_type)){
- for(list=0; list<h->list_count; list++){
- for(i=0; i<2; i++){
- if(IS_DIR(mb_type, i, list)){
- int ref;
- if(h->ref_count[list] > 1){
- ref= decode_cabac_mb_ref( h, list, 8*i );
- if(ref >= (unsigned)h->ref_count[list]){
- av_log(s->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref, h->ref_count[list]);
- return -1;
- }
- }else
- ref=0;
- fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, ref, 1);
- }else
- fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, (LIST_NOT_USED&0xFF), 1);
- }
- }
- for(list=0; list<h->list_count; list++){
- for(i=0; i<2; i++){
- if(IS_DIR(mb_type, i, list)){
- pred_16x8_motion(h, 8*i, list, h->ref_cache[list][scan8[0] + 16*i], &mpx, &mpy);
- mx = mpx + decode_cabac_mb_mvd( h, list, 8*i, 0 );
- my = mpy + decode_cabac_mb_mvd( h, list, 8*i, 1 );
- tprintf(s->avctx, "final mv:%d %d\n", mx, my);
-
- fill_rectangle(h->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack16to32(mx-mpx,my-mpy), 4);
- fill_rectangle(h->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack16to32(mx,my), 4);
- }else{
- fill_rectangle(h->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 4);
- fill_rectangle(h-> mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 4);
- }
- }
- }
- }else{
- assert(IS_8X16(mb_type));
- for(list=0; list<h->list_count; list++){
- for(i=0; i<2; i++){
- if(IS_DIR(mb_type, i, list)){ //FIXME optimize
- int ref;
- if(h->ref_count[list] > 1){
- ref= decode_cabac_mb_ref( h, list, 4*i );
- if(ref >= (unsigned)h->ref_count[list]){
- av_log(s->avctx, AV_LOG_ERROR, "Reference %d >= %d\n", ref, h->ref_count[list]);
- return -1;
- }
- }else
- ref=0;
- fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, ref, 1);
- }else
- fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, (LIST_NOT_USED&0xFF), 1);
- }
- }
- for(list=0; list<h->list_count; list++){
- for(i=0; i<2; i++){
- if(IS_DIR(mb_type, i, list)){
- pred_8x16_motion(h, i*4, list, h->ref_cache[list][ scan8[0] + 2*i ], &mpx, &mpy);
- mx = mpx + decode_cabac_mb_mvd( h, list, 4*i, 0 );
- my = mpy + decode_cabac_mb_mvd( h, list, 4*i, 1 );
-
- tprintf(s->avctx, "final mv:%d %d\n", mx, my);
- fill_rectangle(h->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack16to32(mx-mpx,my-mpy), 4);
- fill_rectangle(h->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack16to32(mx,my), 4);
- }else{
- fill_rectangle(h->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 4);
- fill_rectangle(h-> mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 4);
- }
- }
- }
- }
- }
-
- if( IS_INTER( mb_type ) ) {
- h->chroma_pred_mode_table[mb_xy] = 0;
- write_back_motion( h, mb_type );
- }
-
- if( !IS_INTRA16x16( mb_type ) ) {
- cbp = decode_cabac_mb_cbp_luma( h );
- if(CHROMA)
- cbp |= decode_cabac_mb_cbp_chroma( h ) << 4;
- }
-
- h->cbp_table[mb_xy] = h->cbp = cbp;
-
- if( dct8x8_allowed && (cbp&15) && !IS_INTRA( mb_type ) ) {
- if( decode_cabac_mb_transform_size( h ) )
- mb_type |= MB_TYPE_8x8DCT;
- }
- s->current_picture.mb_type[mb_xy]= mb_type;
-
- if( cbp || IS_INTRA16x16( mb_type ) ) {
- const uint8_t *scan, *scan8x8, *dc_scan;
- const uint32_t *qmul;
- int dqp;
-
- if(IS_INTERLACED(mb_type)){
- scan8x8= s->qscale ? h->field_scan8x8 : h->field_scan8x8_q0;
- scan= s->qscale ? h->field_scan : h->field_scan_q0;
- dc_scan= luma_dc_field_scan;
- }else{
- scan8x8= s->qscale ? h->zigzag_scan8x8 : h->zigzag_scan8x8_q0;
- scan= s->qscale ? h->zigzag_scan : h->zigzag_scan_q0;
- dc_scan= luma_dc_zigzag_scan;
- }
-
- h->last_qscale_diff = dqp = decode_cabac_mb_dqp( h );
- if( dqp == INT_MIN ){
- av_log(h->s.avctx, AV_LOG_ERROR, "cabac decode of qscale diff failed at %d %d\n", s->mb_x, s->mb_y);
- return -1;
- }
- s->qscale += dqp;
- if(((unsigned)s->qscale) > 51){
- if(s->qscale<0) s->qscale+= 52;
- else s->qscale-= 52;
- }
- h->chroma_qp[0] = get_chroma_qp(h, 0, s->qscale);
- h->chroma_qp[1] = get_chroma_qp(h, 1, s->qscale);
-
- if( IS_INTRA16x16( mb_type ) ) {
- int i;
- //av_log( s->avctx, AV_LOG_ERROR, "INTRA16x16 DC\n" );
- decode_cabac_residual( h, h->mb, 0, 0, dc_scan, NULL, 16);
-
- if( cbp&15 ) {
- qmul = h->dequant4_coeff[0][s->qscale];
- for( i = 0; i < 16; i++ ) {
- //av_log( s->avctx, AV_LOG_ERROR, "INTRA16x16 AC:%d\n", i );
- decode_cabac_residual(h, h->mb + 16*i, 1, i, scan + 1, qmul, 15);
- }
- } else {
- fill_rectangle(&h->non_zero_count_cache[scan8[0]], 4, 4, 8, 0, 1);
- }
- } else {
- int i8x8, i4x4;
- for( i8x8 = 0; i8x8 < 4; i8x8++ ) {
- if( cbp & (1<<i8x8) ) {
- if( IS_8x8DCT(mb_type) ) {
- decode_cabac_residual(h, h->mb + 64*i8x8, 5, 4*i8x8,
- scan8x8, h->dequant8_coeff[IS_INTRA( mb_type ) ? 0:1][s->qscale], 64);
- } else {
- qmul = h->dequant4_coeff[IS_INTRA( mb_type ) ? 0:3][s->qscale];
- for( i4x4 = 0; i4x4 < 4; i4x4++ ) {
- const int index = 4*i8x8 + i4x4;
- //av_log( s->avctx, AV_LOG_ERROR, "Luma4x4: %d\n", index );
-//START_TIMER
- decode_cabac_residual(h, h->mb + 16*index, 2, index, scan, qmul, 16);
-//STOP_TIMER("decode_residual")
- }
- }
- } else {
- uint8_t * const nnz= &h->non_zero_count_cache[ scan8[4*i8x8] ];
- nnz[0] = nnz[1] = nnz[8] = nnz[9] = 0;
- }
- }
- }
-
- if( cbp&0x30 ){
- int c;
- for( c = 0; c < 2; c++ ) {
- //av_log( s->avctx, AV_LOG_ERROR, "INTRA C%d-DC\n",c );
- decode_cabac_residual(h, h->mb + 256 + 16*4*c, 3, c, chroma_dc_scan, NULL, 4);
- }
- }
-
- if( cbp&0x20 ) {
- int c, i;
- for( c = 0; c < 2; c++ ) {
- qmul = h->dequant4_coeff[c+1+(IS_INTRA( mb_type ) ? 0:3)][h->chroma_qp[c]];
- for( i = 0; i < 4; i++ ) {
- const int index = 16 + 4 * c + i;
- //av_log( s->avctx, AV_LOG_ERROR, "INTRA C%d-AC %d\n",c, index - 16 );
- decode_cabac_residual(h, h->mb + 16*index, 4, index, scan + 1, qmul, 15);
- }
- }
- } else {
- uint8_t * const nnz= &h->non_zero_count_cache[0];
- nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] =
- nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0;
- }
- } else {
- uint8_t * const nnz= &h->non_zero_count_cache[0];
- fill_rectangle(&nnz[scan8[0]], 4, 4, 8, 0, 1);
- nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] =
- nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0;
- h->last_qscale_diff = 0;
- }
-
- s->current_picture.qscale_table[mb_xy]= s->qscale;
- write_back_non_zero_count(h);
-
- if(MB_MBAFF){
- h->ref_count[0] >>= 1;
- h->ref_count[1] >>= 1;
- }
-
- return 0;
-}
-
-static int decode_slice(struct AVCodecContext *avctx, void *arg){
- H264Context *h = *(void**)arg;
- MpegEncContext * const s = &h->s;
- const int part_mask= s->partitioned_frame ? (AC_END|AC_ERROR) : 0x7F;
-
- s->mb_skip_run= -1;
-
- h->is_complex = FRAME_MBAFF || s->picture_structure != PICT_FRAME || s->codec_id != CODEC_ID_H264 ||
- (CONFIG_GRAY && (s->flags&CODEC_FLAG_GRAY));
-
- if( h->pps.cabac ) {
- int i;
-
- /* realign */
- align_get_bits( &s->gb );
-
- /* init cabac */
- ff_init_cabac_states( &h->cabac);
- ff_init_cabac_decoder( &h->cabac,
- s->gb.buffer + get_bits_count(&s->gb)/8,
- (get_bits_left(&s->gb) + 7)/8);
- /* calculate pre-state */
- for( i= 0; i < 460; i++ ) {
- int pre;
- if( h->slice_type_nos == FF_I_TYPE )
- pre = av_clip( ((cabac_context_init_I[i][0] * s->qscale) >>4 ) + cabac_context_init_I[i][1], 1, 126 );
- else
- pre = av_clip( ((cabac_context_init_PB[h->cabac_init_idc][i][0] * s->qscale) >>4 ) + cabac_context_init_PB[h->cabac_init_idc][i][1], 1, 126 );
-
- if( pre <= 63 )
- h->cabac_state[i] = 2 * ( 63 - pre ) + 0;
- else
- h->cabac_state[i] = 2 * ( pre - 64 ) + 1;
- }
-
- for(;;){
-//START_TIMER
- int ret = decode_mb_cabac(h);
- int eos;
-//STOP_TIMER("decode_mb_cabac")
-
- if(ret>=0) ff_h264_hl_decode_mb(h);
-
- if( ret >= 0 && FRAME_MBAFF ) { //FIXME optimal? or let mb_decode decode 16x32 ?
- s->mb_y++;
-
- ret = decode_mb_cabac(h);
-
- if(ret>=0) ff_h264_hl_decode_mb(h);
- s->mb_y--;
- }
- eos = get_cabac_terminate( &h->cabac );
-
- if( ret < 0 || h->cabac.bytestream > h->cabac.bytestream_end + 2) {
- av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding MB %d %d, bytestream (%td)\n", s->mb_x, s->mb_y, h->cabac.bytestream_end - h->cabac.bytestream);
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
- return -1;
- }
-
- if( ++s->mb_x >= s->mb_width ) {
- s->mb_x = 0;
- ff_draw_horiz_band(s, 16*s->mb_y, 16);
- ++s->mb_y;
- if(FIELD_OR_MBAFF_PICTURE) {
- ++s->mb_y;
- }
- }
-
- if( eos || s->mb_y >= s->mb_height ) {
- tprintf(s->avctx, "slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
- return 0;
- }
- }
-
- } else {
- for(;;){
- int ret = decode_mb_cavlc(h);
-
- if(ret>=0) ff_h264_hl_decode_mb(h);
-
- if(ret>=0 && FRAME_MBAFF){ //FIXME optimal? or let mb_decode decode 16x32 ?
- s->mb_y++;
- ret = decode_mb_cavlc(h);
-
- if(ret>=0) ff_h264_hl_decode_mb(h);
- s->mb_y--;
- }
-
- if(ret<0){
- av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding MB %d %d\n", s->mb_x, s->mb_y);
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
-
- return -1;
- }
-
- if(++s->mb_x >= s->mb_width){
- s->mb_x=0;
- ff_draw_horiz_band(s, 16*s->mb_y, 16);
- ++s->mb_y;
- if(FIELD_OR_MBAFF_PICTURE) {
- ++s->mb_y;
- }
- if(s->mb_y >= s->mb_height){
- tprintf(s->avctx, "slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
-
- if(get_bits_count(&s->gb) == s->gb.size_in_bits ) {
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
-
- return 0;
- }else{
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
-
- return -1;
- }
- }
- }
-
- if(get_bits_count(&s->gb) >= s->gb.size_in_bits && s->mb_skip_run<=0){
- tprintf(s->avctx, "slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
- if(get_bits_count(&s->gb) == s->gb.size_in_bits ){
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
-
- return 0;
- }else{
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
-
- return -1;
- }
- }
- }
- }
-
-#if 0
- for(;s->mb_y < s->mb_height; s->mb_y++){
- for(;s->mb_x < s->mb_width; s->mb_x++){
- int ret= decode_mb(h);
-
- ff_h264_hl_decode_mb(h);
-
- if(ret<0){
- av_log(s->avctx, AV_LOG_ERROR, "error while decoding MB %d %d\n", s->mb_x, s->mb_y);
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
-
- return -1;
- }
-
- if(++s->mb_x >= s->mb_width){
- s->mb_x=0;
- if(++s->mb_y >= s->mb_height){
- if(get_bits_count(s->gb) == s->gb.size_in_bits){
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
-
- return 0;
- }else{
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
-
- return -1;
- }
- }
- }
-
- if(get_bits_count(s->?gb) >= s->gb?.size_in_bits){
- if(get_bits_count(s->gb) == s->gb.size_in_bits){
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
-
- return 0;
- }else{
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
-
- return -1;
- }
- }
- }
- s->mb_x=0;
- ff_draw_horiz_band(s, 16*s->mb_y, 16);
- }
-#endif
- return -1; //not reached
-}
-
static int decode_picture_timing(H264Context *h){
MpegEncContext * const s = &h->s;
if(h->sps.nal_hrd_parameters_present_flag || h->sps.vcl_hrd_parameters_present_flag){
@@ -5766,1191 +204,3 @@ int ff_h264_decode_sei(H264Context *h){
return 0;
}
-
-static inline int decode_hrd_parameters(H264Context *h, SPS *sps){
- MpegEncContext * const s = &h->s;
- int cpb_count, i;
- cpb_count = get_ue_golomb_31(&s->gb) + 1;
-
- if(cpb_count > 32U){
- av_log(h->s.avctx, AV_LOG_ERROR, "cpb_count %d invalid\n", cpb_count);
- return -1;
- }
-
- get_bits(&s->gb, 4); /* bit_rate_scale */
- get_bits(&s->gb, 4); /* cpb_size_scale */
- for(i=0; i<cpb_count; i++){
- get_ue_golomb(&s->gb); /* bit_rate_value_minus1 */
- get_ue_golomb(&s->gb); /* cpb_size_value_minus1 */
- get_bits1(&s->gb); /* cbr_flag */
- }
- sps->initial_cpb_removal_delay_length = get_bits(&s->gb, 5) + 1;
- sps->cpb_removal_delay_length = get_bits(&s->gb, 5) + 1;
- sps->dpb_output_delay_length = get_bits(&s->gb, 5) + 1;
- sps->time_offset_length = get_bits(&s->gb, 5);
- sps->cpb_cnt = cpb_count;
- return 0;
-}
-
-static inline int decode_vui_parameters(H264Context *h, SPS *sps){
- MpegEncContext * const s = &h->s;
- int aspect_ratio_info_present_flag;
- unsigned int aspect_ratio_idc;
-
- aspect_ratio_info_present_flag= get_bits1(&s->gb);
-
- if( aspect_ratio_info_present_flag ) {
- aspect_ratio_idc= get_bits(&s->gb, 8);
- if( aspect_ratio_idc == EXTENDED_SAR ) {
- sps->sar.num= get_bits(&s->gb, 16);
- sps->sar.den= get_bits(&s->gb, 16);
- }else if(aspect_ratio_idc < FF_ARRAY_ELEMS(pixel_aspect)){
- sps->sar= pixel_aspect[aspect_ratio_idc];
- }else{
- av_log(h->s.avctx, AV_LOG_ERROR, "illegal aspect ratio\n");
- return -1;
- }
- }else{
- sps->sar.num=
- sps->sar.den= 0;
- }
-// s->avctx->aspect_ratio= sar_width*s->width / (float)(s->height*sar_height);
-
- if(get_bits1(&s->gb)){ /* overscan_info_present_flag */
- get_bits1(&s->gb); /* overscan_appropriate_flag */
- }
-
- sps->video_signal_type_present_flag = get_bits1(&s->gb);
- if(sps->video_signal_type_present_flag){
- get_bits(&s->gb, 3); /* video_format */
- sps->full_range = get_bits1(&s->gb); /* video_full_range_flag */
-
- sps->colour_description_present_flag = get_bits1(&s->gb);
- if(sps->colour_description_present_flag){
- sps->color_primaries = get_bits(&s->gb, 8); /* colour_primaries */
- sps->color_trc = get_bits(&s->gb, 8); /* transfer_characteristics */
- sps->colorspace = get_bits(&s->gb, 8); /* matrix_coefficients */
- if (sps->color_primaries >= AVCOL_PRI_NB)
- sps->color_primaries = AVCOL_PRI_UNSPECIFIED;
- if (sps->color_trc >= AVCOL_TRC_NB)
- sps->color_trc = AVCOL_TRC_UNSPECIFIED;
- if (sps->colorspace >= AVCOL_SPC_NB)
- sps->colorspace = AVCOL_SPC_UNSPECIFIED;
- }
- }
-
- if(get_bits1(&s->gb)){ /* chroma_location_info_present_flag */
- s->avctx->chroma_sample_location = get_ue_golomb(&s->gb)+1; /* chroma_sample_location_type_top_field */
- get_ue_golomb(&s->gb); /* chroma_sample_location_type_bottom_field */
- }
-
- sps->timing_info_present_flag = get_bits1(&s->gb);
- if(sps->timing_info_present_flag){
- sps->num_units_in_tick = get_bits_long(&s->gb, 32);
- sps->time_scale = get_bits_long(&s->gb, 32);
- if(sps->num_units_in_tick-1 > 0x7FFFFFFEU || sps->time_scale-1 > 0x7FFFFFFEU){
- av_log(h->s.avctx, AV_LOG_ERROR, "time_scale/num_units_in_tick invalid or unsupported (%d/%d)\n", sps->time_scale, sps->num_units_in_tick);
- return -1;
- }
- sps->fixed_frame_rate_flag = get_bits1(&s->gb);
- }
-
- sps->nal_hrd_parameters_present_flag = get_bits1(&s->gb);
- if(sps->nal_hrd_parameters_present_flag)
- if(decode_hrd_parameters(h, sps) < 0)
- return -1;
- sps->vcl_hrd_parameters_present_flag = get_bits1(&s->gb);
- if(sps->vcl_hrd_parameters_present_flag)
- if(decode_hrd_parameters(h, sps) < 0)
- return -1;
- if(sps->nal_hrd_parameters_present_flag || sps->vcl_hrd_parameters_present_flag)
- get_bits1(&s->gb); /* low_delay_hrd_flag */
- sps->pic_struct_present_flag = get_bits1(&s->gb);
-
- sps->bitstream_restriction_flag = get_bits1(&s->gb);
- if(sps->bitstream_restriction_flag){
- get_bits1(&s->gb); /* motion_vectors_over_pic_boundaries_flag */
- get_ue_golomb(&s->gb); /* max_bytes_per_pic_denom */
- get_ue_golomb(&s->gb); /* max_bits_per_mb_denom */
- get_ue_golomb(&s->gb); /* log2_max_mv_length_horizontal */
- get_ue_golomb(&s->gb); /* log2_max_mv_length_vertical */
- sps->num_reorder_frames= get_ue_golomb(&s->gb);
- get_ue_golomb(&s->gb); /*max_dec_frame_buffering*/
-
- if(sps->num_reorder_frames > 16U /*max_dec_frame_buffering || max_dec_frame_buffering > 16*/){
- av_log(h->s.avctx, AV_LOG_ERROR, "illegal num_reorder_frames %d\n", sps->num_reorder_frames);
- return -1;
- }
- }
-
- return 0;
-}
-
-static void decode_scaling_list(H264Context *h, uint8_t *factors, int size,
- const uint8_t *jvt_list, const uint8_t *fallback_list){
- MpegEncContext * const s = &h->s;
- int i, last = 8, next = 8;
- const uint8_t *scan = size == 16 ? zigzag_scan : ff_zigzag_direct;
- if(!get_bits1(&s->gb)) /* matrix not written, we use the predicted one */
- memcpy(factors, fallback_list, size*sizeof(uint8_t));
- else
- for(i=0;i<size;i++){
- if(next)
- next = (last + get_se_golomb(&s->gb)) & 0xff;
- if(!i && !next){ /* matrix not written, we use the preset one */
- memcpy(factors, jvt_list, size*sizeof(uint8_t));
- break;
- }
- last = factors[scan[i]] = next ? next : last;
- }
-}
-
-static void decode_scaling_matrices(H264Context *h, SPS *sps, PPS *pps, int is_sps,
- uint8_t (*scaling_matrix4)[16], uint8_t (*scaling_matrix8)[64]){
- MpegEncContext * const s = &h->s;
- int fallback_sps = !is_sps && sps->scaling_matrix_present;
- const uint8_t *fallback[4] = {
- fallback_sps ? sps->scaling_matrix4[0] : default_scaling4[0],
- fallback_sps ? sps->scaling_matrix4[3] : default_scaling4[1],
- fallback_sps ? sps->scaling_matrix8[0] : default_scaling8[0],
- fallback_sps ? sps->scaling_matrix8[1] : default_scaling8[1]
- };
- if(get_bits1(&s->gb)){
- sps->scaling_matrix_present |= is_sps;
- decode_scaling_list(h,scaling_matrix4[0],16,default_scaling4[0],fallback[0]); // Intra, Y
- decode_scaling_list(h,scaling_matrix4[1],16,default_scaling4[0],scaling_matrix4[0]); // Intra, Cr
- decode_scaling_list(h,scaling_matrix4[2],16,default_scaling4[0],scaling_matrix4[1]); // Intra, Cb
- decode_scaling_list(h,scaling_matrix4[3],16,default_scaling4[1],fallback[1]); // Inter, Y
- decode_scaling_list(h,scaling_matrix4[4],16,default_scaling4[1],scaling_matrix4[3]); // Inter, Cr
- decode_scaling_list(h,scaling_matrix4[5],16,default_scaling4[1],scaling_matrix4[4]); // Inter, Cb
- if(is_sps || pps->transform_8x8_mode){
- decode_scaling_list(h,scaling_matrix8[0],64,default_scaling8[0],fallback[2]); // Intra, Y
- decode_scaling_list(h,scaling_matrix8[1],64,default_scaling8[1],fallback[3]); // Inter, Y
- }
- }
-}
-
-int ff_h264_decode_seq_parameter_set(H264Context *h){
- MpegEncContext * const s = &h->s;
- int profile_idc, level_idc;
- unsigned int sps_id;
- int i;
- SPS *sps;
-
- profile_idc= get_bits(&s->gb, 8);
- get_bits1(&s->gb); //constraint_set0_flag
- get_bits1(&s->gb); //constraint_set1_flag
- get_bits1(&s->gb); //constraint_set2_flag
- get_bits1(&s->gb); //constraint_set3_flag
- get_bits(&s->gb, 4); // reserved
- level_idc= get_bits(&s->gb, 8);
- sps_id= get_ue_golomb_31(&s->gb);
-
- if(sps_id >= MAX_SPS_COUNT) {
- av_log(h->s.avctx, AV_LOG_ERROR, "sps_id (%d) out of range\n", sps_id);
- return -1;
- }
- sps= av_mallocz(sizeof(SPS));
- if(sps == NULL)
- return -1;
-
- sps->profile_idc= profile_idc;
- sps->level_idc= level_idc;
-
- memset(sps->scaling_matrix4, 16, sizeof(sps->scaling_matrix4));
- memset(sps->scaling_matrix8, 16, sizeof(sps->scaling_matrix8));
- sps->scaling_matrix_present = 0;
-
- if(sps->profile_idc >= 100){ //high profile
- sps->chroma_format_idc= get_ue_golomb_31(&s->gb);
- if(sps->chroma_format_idc == 3)
- sps->residual_color_transform_flag = get_bits1(&s->gb);
- sps->bit_depth_luma = get_ue_golomb(&s->gb) + 8;
- sps->bit_depth_chroma = get_ue_golomb(&s->gb) + 8;
- sps->transform_bypass = get_bits1(&s->gb);
- decode_scaling_matrices(h, sps, NULL, 1, sps->scaling_matrix4, sps->scaling_matrix8);
- }else{
- sps->chroma_format_idc= 1;
- sps->bit_depth_luma = 8;
- sps->bit_depth_chroma = 8;
- }
-
- sps->log2_max_frame_num= get_ue_golomb(&s->gb) + 4;
- sps->poc_type= get_ue_golomb_31(&s->gb);
-
- if(sps->poc_type == 0){ //FIXME #define
- sps->log2_max_poc_lsb= get_ue_golomb(&s->gb) + 4;
- } else if(sps->poc_type == 1){//FIXME #define
- sps->delta_pic_order_always_zero_flag= get_bits1(&s->gb);
- sps->offset_for_non_ref_pic= get_se_golomb(&s->gb);
- sps->offset_for_top_to_bottom_field= get_se_golomb(&s->gb);
- sps->poc_cycle_length = get_ue_golomb(&s->gb);
-
- if((unsigned)sps->poc_cycle_length >= FF_ARRAY_ELEMS(sps->offset_for_ref_frame)){
- av_log(h->s.avctx, AV_LOG_ERROR, "poc_cycle_length overflow %u\n", sps->poc_cycle_length);
- goto fail;
- }
-
- for(i=0; i<sps->poc_cycle_length; i++)
- sps->offset_for_ref_frame[i]= get_se_golomb(&s->gb);
- }else if(sps->poc_type != 2){
- av_log(h->s.avctx, AV_LOG_ERROR, "illegal POC type %d\n", sps->poc_type);
- goto fail;
- }
-
- sps->ref_frame_count= get_ue_golomb_31(&s->gb);
- if(sps->ref_frame_count > MAX_PICTURE_COUNT-2 || sps->ref_frame_count >= 32U){
- av_log(h->s.avctx, AV_LOG_ERROR, "too many reference frames\n");
- goto fail;
- }
- sps->gaps_in_frame_num_allowed_flag= get_bits1(&s->gb);
- sps->mb_width = get_ue_golomb(&s->gb) + 1;
- sps->mb_height= get_ue_golomb(&s->gb) + 1;
- if((unsigned)sps->mb_width >= INT_MAX/16 || (unsigned)sps->mb_height >= INT_MAX/16 ||
- avcodec_check_dimensions(NULL, 16*sps->mb_width, 16*sps->mb_height)){
- av_log(h->s.avctx, AV_LOG_ERROR, "mb_width/height overflow\n");
- goto fail;
- }
-
- sps->frame_mbs_only_flag= get_bits1(&s->gb);
- if(!sps->frame_mbs_only_flag)
- sps->mb_aff= get_bits1(&s->gb);
- else
- sps->mb_aff= 0;
-
- sps->direct_8x8_inference_flag= get_bits1(&s->gb);
-
-#ifndef ALLOW_INTERLACE
- if(sps->mb_aff)
- av_log(h->s.avctx, AV_LOG_ERROR, "MBAFF support not included; enable it at compile-time.\n");
-#endif
- sps->crop= get_bits1(&s->gb);
- if(sps->crop){
- sps->crop_left = get_ue_golomb(&s->gb);
- sps->crop_right = get_ue_golomb(&s->gb);
- sps->crop_top = get_ue_golomb(&s->gb);
- sps->crop_bottom= get_ue_golomb(&s->gb);
- if(sps->crop_left || sps->crop_top){
- av_log(h->s.avctx, AV_LOG_ERROR, "insane cropping not completely supported, this could look slightly wrong ...\n");
- }
- if(sps->crop_right >= 8 || sps->crop_bottom >= (8>> !sps->frame_mbs_only_flag)){
- av_log(h->s.avctx, AV_LOG_ERROR, "brainfart cropping not supported, this could look slightly wrong ...\n");
- }
- }else{
- sps->crop_left =
- sps->crop_right =
- sps->crop_top =
- sps->crop_bottom= 0;
- }
-
- sps->vui_parameters_present_flag= get_bits1(&s->gb);
- if( sps->vui_parameters_present_flag )
- if (decode_vui_parameters(h, sps) < 0)
- goto fail;
-
- if(s->avctx->debug&FF_DEBUG_PICT_INFO){
- av_log(h->s.avctx, AV_LOG_DEBUG, "sps:%u profile:%d/%d poc:%d ref:%d %dx%d %s %s crop:%d/%d/%d/%d %s %s %d/%d\n",
- sps_id, sps->profile_idc, sps->level_idc,
- sps->poc_type,
- sps->ref_frame_count,
- sps->mb_width, sps->mb_height,
- sps->frame_mbs_only_flag ? "FRM" : (sps->mb_aff ? "MB-AFF" : "PIC-AFF"),
- sps->direct_8x8_inference_flag ? "8B8" : "",
- sps->crop_left, sps->crop_right,
- sps->crop_top, sps->crop_bottom,
- sps->vui_parameters_present_flag ? "VUI" : "",
- ((const char*[]){"Gray","420","422","444"})[sps->chroma_format_idc],
- sps->timing_info_present_flag ? sps->num_units_in_tick : 0,
- sps->timing_info_present_flag ? sps->time_scale : 0
- );
- }
-
- av_free(h->sps_buffers[sps_id]);
- h->sps_buffers[sps_id]= sps;
- h->sps = *sps;
- return 0;
-fail:
- av_free(sps);
- return -1;
-}
-
-static void
-build_qp_table(PPS *pps, int t, int index)
-{
- int i;
- for(i = 0; i < 52; i++)
- pps->chroma_qp_table[t][i] = chroma_qp[av_clip(i + index, 0, 51)];
-}
-
-int ff_h264_decode_picture_parameter_set(H264Context *h, int bit_length){
- MpegEncContext * const s = &h->s;
- unsigned int pps_id= get_ue_golomb(&s->gb);
- PPS *pps;
-
- if(pps_id >= MAX_PPS_COUNT) {
- av_log(h->s.avctx, AV_LOG_ERROR, "pps_id (%d) out of range\n", pps_id);
- return -1;
- }
-
- pps= av_mallocz(sizeof(PPS));
- if(pps == NULL)
- return -1;
- pps->sps_id= get_ue_golomb_31(&s->gb);
- if((unsigned)pps->sps_id>=MAX_SPS_COUNT || h->sps_buffers[pps->sps_id] == NULL){
- av_log(h->s.avctx, AV_LOG_ERROR, "sps_id out of range\n");
- goto fail;
- }
-
- pps->cabac= get_bits1(&s->gb);
- pps->pic_order_present= get_bits1(&s->gb);
- pps->slice_group_count= get_ue_golomb(&s->gb) + 1;
- if(pps->slice_group_count > 1 ){
- pps->mb_slice_group_map_type= get_ue_golomb(&s->gb);
- av_log(h->s.avctx, AV_LOG_ERROR, "FMO not supported\n");
- switch(pps->mb_slice_group_map_type){
- case 0:
-#if 0
-| for( i = 0; i <= num_slice_groups_minus1; i++ ) | | |
-| run_length[ i ] |1 |ue(v) |
-#endif
- break;
- case 2:
-#if 0
-| for( i = 0; i < num_slice_groups_minus1; i++ ) | | |
-|{ | | |
-| top_left_mb[ i ] |1 |ue(v) |
-| bottom_right_mb[ i ] |1 |ue(v) |
-| } | | |
-#endif
- break;
- case 3:
- case 4:
- case 5:
-#if 0
-| slice_group_change_direction_flag |1 |u(1) |
-| slice_group_change_rate_minus1 |1 |ue(v) |
-#endif
- break;
- case 6:
-#if 0
-| slice_group_id_cnt_minus1 |1 |ue(v) |
-| for( i = 0; i <= slice_group_id_cnt_minus1; i++ | | |
-|) | | |
-| slice_group_id[ i ] |1 |u(v) |
-#endif
- break;
- }
- }
- pps->ref_count[0]= get_ue_golomb(&s->gb) + 1;
- pps->ref_count[1]= get_ue_golomb(&s->gb) + 1;
- if(pps->ref_count[0]-1 > 32-1 || pps->ref_count[1]-1 > 32-1){
- av_log(h->s.avctx, AV_LOG_ERROR, "reference overflow (pps)\n");
- goto fail;
- }
-
- pps->weighted_pred= get_bits1(&s->gb);
- pps->weighted_bipred_idc= get_bits(&s->gb, 2);
- pps->init_qp= get_se_golomb(&s->gb) + 26;
- pps->init_qs= get_se_golomb(&s->gb) + 26;
- pps->chroma_qp_index_offset[0]= get_se_golomb(&s->gb);
- pps->deblocking_filter_parameters_present= get_bits1(&s->gb);
- pps->constrained_intra_pred= get_bits1(&s->gb);
- pps->redundant_pic_cnt_present = get_bits1(&s->gb);
-
- pps->transform_8x8_mode= 0;
- h->dequant_coeff_pps= -1; //contents of sps/pps can change even if id doesn't, so reinit
- memcpy(pps->scaling_matrix4, h->sps_buffers[pps->sps_id]->scaling_matrix4, sizeof(pps->scaling_matrix4));
- memcpy(pps->scaling_matrix8, h->sps_buffers[pps->sps_id]->scaling_matrix8, sizeof(pps->scaling_matrix8));
-
- if(get_bits_count(&s->gb) < bit_length){
- pps->transform_8x8_mode= get_bits1(&s->gb);
- decode_scaling_matrices(h, h->sps_buffers[pps->sps_id], pps, 0, pps->scaling_matrix4, pps->scaling_matrix8);
- pps->chroma_qp_index_offset[1]= get_se_golomb(&s->gb); //second_chroma_qp_index_offset
- } else {
- pps->chroma_qp_index_offset[1]= pps->chroma_qp_index_offset[0];
- }
-
- build_qp_table(pps, 0, pps->chroma_qp_index_offset[0]);
- build_qp_table(pps, 1, pps->chroma_qp_index_offset[1]);
- if(pps->chroma_qp_index_offset[0] != pps->chroma_qp_index_offset[1])
- h->pps.chroma_qp_diff= 1;
-
- if(s->avctx->debug&FF_DEBUG_PICT_INFO){
- av_log(h->s.avctx, AV_LOG_DEBUG, "pps:%u sps:%u %s slice_groups:%d ref:%d/%d %s qp:%d/%d/%d/%d %s %s %s %s\n",
- pps_id, pps->sps_id,
- pps->cabac ? "CABAC" : "CAVLC",
- pps->slice_group_count,
- pps->ref_count[0], pps->ref_count[1],
- pps->weighted_pred ? "weighted" : "",
- pps->init_qp, pps->init_qs, pps->chroma_qp_index_offset[0], pps->chroma_qp_index_offset[1],
- pps->deblocking_filter_parameters_present ? "LPAR" : "",
- pps->constrained_intra_pred ? "CONSTR" : "",
- pps->redundant_pic_cnt_present ? "REDU" : "",
- pps->transform_8x8_mode ? "8x8DCT" : ""
- );
- }
-
- av_free(h->pps_buffers[pps_id]);
- h->pps_buffers[pps_id]= pps;
- return 0;
-fail:
- av_free(pps);
- return -1;
-}
-
-/**
- * Call decode_slice() for each context.
- *
- * @param h h264 master context
- * @param context_count number of contexts to execute
- */
-static void execute_decode_slices(H264Context *h, int context_count){
- MpegEncContext * const s = &h->s;
- AVCodecContext * const avctx= s->avctx;
- H264Context *hx;
- int i;
-
- if (s->avctx->hwaccel)
- return;
- if(s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
- return;
- if(context_count == 1) {
- decode_slice(avctx, &h);
- } else {
- for(i = 1; i < context_count; i++) {
- hx = h->thread_context[i];
- hx->s.error_recognition = avctx->error_recognition;
- hx->s.error_count = 0;
- }
-
- avctx->execute(avctx, (void *)decode_slice,
- h->thread_context, NULL, context_count, sizeof(void*));
-
- /* pull back stuff from slices to master context */
- hx = h->thread_context[context_count - 1];
- s->mb_x = hx->s.mb_x;
- s->mb_y = hx->s.mb_y;
- s->dropable = hx->s.dropable;
- s->picture_structure = hx->s.picture_structure;
- for(i = 1; i < context_count; i++)
- h->s.error_count += h->thread_context[i]->s.error_count;
- }
-}
-
-
-static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size){
- MpegEncContext * const s = &h->s;
- AVCodecContext * const avctx= s->avctx;
- int buf_index=0;
- H264Context *hx; ///< thread context
- int context_count = 0;
- int next_avc= h->is_avc ? 0 : buf_size;
-
- h->max_contexts = avctx->thread_count;
-#if 0
- int i;
- for(i=0; i<50; i++){
- av_log(NULL, AV_LOG_ERROR,"%02X ", buf[i]);
- }
-#endif
- if(!(s->flags2 & CODEC_FLAG2_CHUNKS)){
- h->current_slice = 0;
- if (!s->first_field)
- s->current_picture_ptr= NULL;
- reset_sei(h);
- }
-
- for(;;){
- int consumed;
- int dst_length;
- int bit_length;
- const uint8_t *ptr;
- int i, nalsize = 0;
- int err;
-
- if(buf_index >= next_avc) {
- if(buf_index >= buf_size) break;
- nalsize = 0;
- for(i = 0; i < h->nal_length_size; i++)
- nalsize = (nalsize << 8) | buf[buf_index++];
- if(nalsize <= 1 || nalsize > buf_size - buf_index){
- if(nalsize == 1){
- buf_index++;
- continue;
- }else{
- av_log(h->s.avctx, AV_LOG_ERROR, "AVC: nal size %d\n", nalsize);
- break;
- }
- }
- next_avc= buf_index + nalsize;
- } else {
- // start code prefix search
- for(; buf_index + 3 < next_avc; buf_index++){
- // This should always succeed in the first iteration.
- if(buf[buf_index] == 0 && buf[buf_index+1] == 0 && buf[buf_index+2] == 1)
- break;
- }
-
- if(buf_index+3 >= buf_size) break;
-
- buf_index+=3;
- if(buf_index >= next_avc) continue;
- }
-
- hx = h->thread_context[context_count];
-
- ptr= ff_h264_decode_nal(hx, buf + buf_index, &dst_length, &consumed, next_avc - buf_index);
- if (ptr==NULL || dst_length < 0){
- return -1;
- }
- while(ptr[dst_length - 1] == 0 && dst_length > 0)
- dst_length--;
- bit_length= !dst_length ? 0 : (8*dst_length - ff_h264_decode_rbsp_trailing(h, ptr + dst_length - 1));
-
- if(s->avctx->debug&FF_DEBUG_STARTCODE){
- av_log(h->s.avctx, AV_LOG_DEBUG, "NAL %d at %d/%d length %d\n", hx->nal_unit_type, buf_index, buf_size, dst_length);
- }
-
- if (h->is_avc && (nalsize != consumed) && nalsize){
- av_log(h->s.avctx, AV_LOG_DEBUG, "AVC: Consumed only %d bytes instead of %d\n", consumed, nalsize);
- }
-
- buf_index += consumed;
-
- if( (s->hurry_up == 1 && h->nal_ref_idc == 0) //FIXME do not discard SEI id
- ||(avctx->skip_frame >= AVDISCARD_NONREF && h->nal_ref_idc == 0))
- continue;
-
- again:
- err = 0;
- switch(hx->nal_unit_type){
- case NAL_IDR_SLICE:
- if (h->nal_unit_type != NAL_IDR_SLICE) {
- av_log(h->s.avctx, AV_LOG_ERROR, "Invalid mix of idr and non-idr slices");
- return -1;
- }
- idr(h); //FIXME ensure we don't loose some frames if there is reordering
- case NAL_SLICE:
- init_get_bits(&hx->s.gb, ptr, bit_length);
- hx->intra_gb_ptr=
- hx->inter_gb_ptr= &hx->s.gb;
- hx->s.data_partitioning = 0;
-
- if((err = decode_slice_header(hx, h)))
- break;
-
- if (s->avctx->hwaccel && h->current_slice == 1) {
- if (s->avctx->hwaccel->start_frame(s->avctx, NULL, 0) < 0)
- return -1;
- }
-
- s->current_picture_ptr->key_frame |=
- (hx->nal_unit_type == NAL_IDR_SLICE) ||
- (h->sei_recovery_frame_cnt >= 0);
- if(hx->redundant_pic_count==0 && hx->s.hurry_up < 5
- && (avctx->skip_frame < AVDISCARD_NONREF || hx->nal_ref_idc)
- && (avctx->skip_frame < AVDISCARD_BIDIR || hx->slice_type_nos!=FF_B_TYPE)
- && (avctx->skip_frame < AVDISCARD_NONKEY || hx->slice_type_nos==FF_I_TYPE)
- && avctx->skip_frame < AVDISCARD_ALL){
- if(avctx->hwaccel) {
- if (avctx->hwaccel->decode_slice(avctx, &buf[buf_index - consumed], consumed) < 0)
- return -1;
- }else
- if(CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU){
- static const uint8_t start_code[] = {0x00, 0x00, 0x01};
- ff_vdpau_add_data_chunk(s, start_code, sizeof(start_code));
- ff_vdpau_add_data_chunk(s, &buf[buf_index - consumed], consumed );
- }else
- context_count++;
- }
- break;
- case NAL_DPA:
- init_get_bits(&hx->s.gb, ptr, bit_length);
- hx->intra_gb_ptr=
- hx->inter_gb_ptr= NULL;
-
- if ((err = decode_slice_header(hx, h)) < 0)
- break;
-
- hx->s.data_partitioning = 1;
-
- break;
- case NAL_DPB:
- init_get_bits(&hx->intra_gb, ptr, bit_length);
- hx->intra_gb_ptr= &hx->intra_gb;
- break;
- case NAL_DPC:
- init_get_bits(&hx->inter_gb, ptr, bit_length);
- hx->inter_gb_ptr= &hx->inter_gb;
-
- if(hx->redundant_pic_count==0 && hx->intra_gb_ptr && hx->s.data_partitioning
- && s->context_initialized
- && s->hurry_up < 5
- && (avctx->skip_frame < AVDISCARD_NONREF || hx->nal_ref_idc)
- && (avctx->skip_frame < AVDISCARD_BIDIR || hx->slice_type_nos!=FF_B_TYPE)
- && (avctx->skip_frame < AVDISCARD_NONKEY || hx->slice_type_nos==FF_I_TYPE)
- && avctx->skip_frame < AVDISCARD_ALL)
- context_count++;
- break;
- case NAL_SEI:
- init_get_bits(&s->gb, ptr, bit_length);
- ff_h264_decode_sei(h);
- break;
- case NAL_SPS:
- init_get_bits(&s->gb, ptr, bit_length);
- ff_h264_decode_seq_parameter_set(h);
-
- if(s->flags& CODEC_FLAG_LOW_DELAY)
- s->low_delay=1;
-
- if(avctx->has_b_frames < 2)
- avctx->has_b_frames= !s->low_delay;
- break;
- case NAL_PPS:
- init_get_bits(&s->gb, ptr, bit_length);
-
- ff_h264_decode_picture_parameter_set(h, bit_length);
-
- break;
- case NAL_AUD:
- case NAL_END_SEQUENCE:
- case NAL_END_STREAM:
- case NAL_FILLER_DATA:
- case NAL_SPS_EXT:
- case NAL_AUXILIARY_SLICE:
- break;
- default:
- av_log(avctx, AV_LOG_DEBUG, "Unknown NAL code: %d (%d bits)\n", hx->nal_unit_type, bit_length);
- }
-
- if(context_count == h->max_contexts) {
- execute_decode_slices(h, context_count);
- context_count = 0;
- }
-
- if (err < 0)
- av_log(h->s.avctx, AV_LOG_ERROR, "decode_slice_header error\n");
- else if(err == 1) {
- /* Slice could not be decoded in parallel mode, copy down
- * NAL unit stuff to context 0 and restart. Note that
- * rbsp_buffer is not transferred, but since we no longer
- * run in parallel mode this should not be an issue. */
- h->nal_unit_type = hx->nal_unit_type;
- h->nal_ref_idc = hx->nal_ref_idc;
- hx = h;
- goto again;
- }
- }
- if(context_count)
- execute_decode_slices(h, context_count);
- return buf_index;
-}
-
-/**
- * returns the number of bytes consumed for building the current frame
- */
-static int get_consumed_bytes(MpegEncContext *s, int pos, int buf_size){
- if(pos==0) pos=1; //avoid infinite loops (i doubt that is needed but ...)
- if(pos+10>buf_size) pos=buf_size; // oops ;)
-
- return pos;
-}
-
-static int decode_frame(AVCodecContext *avctx,
- void *data, int *data_size,
- AVPacket *avpkt)
-{
- const uint8_t *buf = avpkt->data;
- int buf_size = avpkt->size;
- H264Context *h = avctx->priv_data;
- MpegEncContext *s = &h->s;
- AVFrame *pict = data;
- int buf_index;
-
- s->flags= avctx->flags;
- s->flags2= avctx->flags2;
-
- /* end of stream, output what is still in the buffers */
- if (buf_size == 0) {
- Picture *out;
- int i, out_idx;
-
-//FIXME factorize this with the output code below
- out = h->delayed_pic[0];
- out_idx = 0;
- for(i=1; h->delayed_pic[i] && !h->delayed_pic[i]->key_frame && !h->delayed_pic[i]->mmco_reset; i++)
- if(h->delayed_pic[i]->poc < out->poc){
- out = h->delayed_pic[i];
- out_idx = i;
- }
-
- for(i=out_idx; h->delayed_pic[i]; i++)
- h->delayed_pic[i] = h->delayed_pic[i+1];
-
- if(out){
- *data_size = sizeof(AVFrame);
- *pict= *(AVFrame*)out;
- }
-
- return 0;
- }
-
- if(h->is_avc && !h->got_avcC) {
- int i, cnt, nalsize;
- unsigned char *p = avctx->extradata;
- if(avctx->extradata_size < 7) {
- av_log(avctx, AV_LOG_ERROR, "avcC too short\n");
- return -1;
- }
- if(*p != 1) {
- av_log(avctx, AV_LOG_ERROR, "Unknown avcC version %d\n", *p);
- return -1;
- }
- /* sps and pps in the avcC always have length coded with 2 bytes,
- so put a fake nal_length_size = 2 while parsing them */
- h->nal_length_size = 2;
- // Decode sps from avcC
- cnt = *(p+5) & 0x1f; // Number of sps
- p += 6;
- for (i = 0; i < cnt; i++) {
- nalsize = AV_RB16(p) + 2;
- if(decode_nal_units(h, p, nalsize) < 0) {
- av_log(avctx, AV_LOG_ERROR, "Decoding sps %d from avcC failed\n", i);
- return -1;
- }
- p += nalsize;
- }
- // Decode pps from avcC
- cnt = *(p++); // Number of pps
- for (i = 0; i < cnt; i++) {
- nalsize = AV_RB16(p) + 2;
- if(decode_nal_units(h, p, nalsize) != nalsize) {
- av_log(avctx, AV_LOG_ERROR, "Decoding pps %d from avcC failed\n", i);
- return -1;
- }
- p += nalsize;
- }
- // Now store right nal length size, that will be use to parse all other nals
- h->nal_length_size = ((*(((char*)(avctx->extradata))+4))&0x03)+1;
- // Do not reparse avcC
- h->got_avcC = 1;
- }
-
- if(!h->got_avcC && !h->is_avc && s->avctx->extradata_size){
- if(decode_nal_units(h, s->avctx->extradata, s->avctx->extradata_size) < 0)
- return -1;
- h->got_avcC = 1;
- }
-
- buf_index=decode_nal_units(h, buf, buf_size);
- if(buf_index < 0)
- return -1;
-
- if(!(s->flags2 & CODEC_FLAG2_CHUNKS) && !s->current_picture_ptr){
- if (avctx->skip_frame >= AVDISCARD_NONREF || s->hurry_up) return 0;
- av_log(avctx, AV_LOG_ERROR, "no frame!\n");
- return -1;
- }
-
- if(!(s->flags2 & CODEC_FLAG2_CHUNKS) || (s->mb_y >= s->mb_height && s->mb_height)){
- Picture *out = s->current_picture_ptr;
- Picture *cur = s->current_picture_ptr;
- int i, pics, out_of_order, out_idx;
-
- field_end(h);
-
- if (cur->field_poc[0]==INT_MAX || cur->field_poc[1]==INT_MAX) {
- /* Wait for second field. */
- *data_size = 0;
-
- } else {
- cur->interlaced_frame = 0;
- cur->repeat_pict = 0;
-
- /* Signal interlacing information externally. */
- /* Prioritize picture timing SEI information over used decoding process if it exists. */
-
- if(h->sps.pic_struct_present_flag){
- switch (h->sei_pic_struct)
- {
- case SEI_PIC_STRUCT_FRAME:
- break;
- case SEI_PIC_STRUCT_TOP_FIELD:
- case SEI_PIC_STRUCT_BOTTOM_FIELD:
- cur->interlaced_frame = 1;
- break;
- case SEI_PIC_STRUCT_TOP_BOTTOM:
- case SEI_PIC_STRUCT_BOTTOM_TOP:
- if (FIELD_OR_MBAFF_PICTURE)
- cur->interlaced_frame = 1;
- else
- // try to flag soft telecine progressive
- cur->interlaced_frame = h->prev_interlaced_frame;
- break;
- case SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
- case SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
- // Signal the possibility of telecined film externally (pic_struct 5,6)
- // From these hints, let the applications decide if they apply deinterlacing.
- cur->repeat_pict = 1;
- break;
- case SEI_PIC_STRUCT_FRAME_DOUBLING:
- // Force progressive here, as doubling interlaced frame is a bad idea.
- cur->repeat_pict = 2;
- break;
- case SEI_PIC_STRUCT_FRAME_TRIPLING:
- cur->repeat_pict = 4;
- break;
- }
-
- if ((h->sei_ct_type & 3) && h->sei_pic_struct <= SEI_PIC_STRUCT_BOTTOM_TOP)
- cur->interlaced_frame = (h->sei_ct_type & (1<<1)) != 0;
- }else{
- /* Derive interlacing flag from used decoding process. */
- cur->interlaced_frame = FIELD_OR_MBAFF_PICTURE;
- }
- h->prev_interlaced_frame = cur->interlaced_frame;
-
- if (cur->field_poc[0] != cur->field_poc[1]){
- /* Derive top_field_first from field pocs. */
- cur->top_field_first = cur->field_poc[0] < cur->field_poc[1];
- }else{
- if(cur->interlaced_frame || h->sps.pic_struct_present_flag){
- /* Use picture timing SEI information. Even if it is a information of a past frame, better than nothing. */
- if(h->sei_pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM
- || h->sei_pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM_TOP)
- cur->top_field_first = 1;
- else
- cur->top_field_first = 0;
- }else{
- /* Most likely progressive */
- cur->top_field_first = 0;
- }
- }
-
- //FIXME do something with unavailable reference frames
-
- /* Sort B-frames into display order */
-
- if(h->sps.bitstream_restriction_flag
- && s->avctx->has_b_frames < h->sps.num_reorder_frames){
- s->avctx->has_b_frames = h->sps.num_reorder_frames;
- s->low_delay = 0;
- }
-
- if( s->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT
- && !h->sps.bitstream_restriction_flag){
- s->avctx->has_b_frames= MAX_DELAYED_PIC_COUNT;
- s->low_delay= 0;
- }
-
- pics = 0;
- while(h->delayed_pic[pics]) pics++;
-
- assert(pics <= MAX_DELAYED_PIC_COUNT);
-
- h->delayed_pic[pics++] = cur;
- if(cur->reference == 0)
- cur->reference = DELAYED_PIC_REF;
-
- out = h->delayed_pic[0];
- out_idx = 0;
- for(i=1; h->delayed_pic[i] && !h->delayed_pic[i]->key_frame && !h->delayed_pic[i]->mmco_reset; i++)
- if(h->delayed_pic[i]->poc < out->poc){
- out = h->delayed_pic[i];
- out_idx = i;
- }
- if(s->avctx->has_b_frames == 0 && (h->delayed_pic[0]->key_frame || h->delayed_pic[0]->mmco_reset))
- h->outputed_poc= INT_MIN;
- out_of_order = out->poc < h->outputed_poc;
-
- if(h->sps.bitstream_restriction_flag && s->avctx->has_b_frames >= h->sps.num_reorder_frames)
- { }
- else if((out_of_order && pics-1 == s->avctx->has_b_frames && s->avctx->has_b_frames < MAX_DELAYED_PIC_COUNT)
- || (s->low_delay &&
- ((h->outputed_poc != INT_MIN && out->poc > h->outputed_poc + 2)
- || cur->pict_type == FF_B_TYPE)))
- {
- s->low_delay = 0;
- s->avctx->has_b_frames++;
- }
-
- if(out_of_order || pics > s->avctx->has_b_frames){
- out->reference &= ~DELAYED_PIC_REF;
- for(i=out_idx; h->delayed_pic[i]; i++)
- h->delayed_pic[i] = h->delayed_pic[i+1];
- }
- if(!out_of_order && pics > s->avctx->has_b_frames){
- *data_size = sizeof(AVFrame);
-
- if(out_idx==0 && h->delayed_pic[0] && (h->delayed_pic[0]->key_frame || h->delayed_pic[0]->mmco_reset)) {
- h->outputed_poc = INT_MIN;
- } else
- h->outputed_poc = out->poc;
- *pict= *(AVFrame*)out;
- }else{
- av_log(avctx, AV_LOG_DEBUG, "no picture\n");
- }
- }
- }
-
- assert(pict->data[0] || !*data_size);
- ff_print_debug_info(s, pict);
-//printf("out %d\n", (int)pict->data[0]);
-
- return get_consumed_bytes(s, buf_index, buf_size);
-}
-#if 0
-static inline void fill_mb_avail(H264Context *h){
- MpegEncContext * const s = &h->s;
- const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
-
- if(s->mb_y){
- h->mb_avail[0]= s->mb_x && h->slice_table[mb_xy - s->mb_stride - 1] == h->slice_num;
- h->mb_avail[1]= h->slice_table[mb_xy - s->mb_stride ] == h->slice_num;
- h->mb_avail[2]= s->mb_x+1 < s->mb_width && h->slice_table[mb_xy - s->mb_stride + 1] == h->slice_num;
- }else{
- h->mb_avail[0]=
- h->mb_avail[1]=
- h->mb_avail[2]= 0;
- }
- h->mb_avail[3]= s->mb_x && h->slice_table[mb_xy - 1] == h->slice_num;
- h->mb_avail[4]= 1; //FIXME move out
- h->mb_avail[5]= 0; //FIXME move out
-}
-#endif
-
-#ifdef TEST
-#undef printf
-#undef random
-#define COUNT 8000
-#define SIZE (COUNT*40)
-int main(void){
- int i;
- uint8_t temp[SIZE];
- PutBitContext pb;
- GetBitContext gb;
-// int int_temp[10000];
- DSPContext dsp;
- AVCodecContext avctx;
-
- dsputil_init(&dsp, &avctx);
-
- init_put_bits(&pb, temp, SIZE);
- printf("testing unsigned exp golomb\n");
- for(i=0; i<COUNT; i++){
- START_TIMER
- set_ue_golomb(&pb, i);
- STOP_TIMER("set_ue_golomb");
- }
- flush_put_bits(&pb);
-
- init_get_bits(&gb, temp, 8*SIZE);
- for(i=0; i<COUNT; i++){
- int j, s;
-
- s= show_bits(&gb, 24);
-
- START_TIMER
- j= get_ue_golomb(&gb);
- if(j != i){
- printf("mismatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s);
-// return -1;
- }
- STOP_TIMER("get_ue_golomb");
- }
-
-
- init_put_bits(&pb, temp, SIZE);
- printf("testing signed exp golomb\n");
- for(i=0; i<COUNT; i++){
- START_TIMER
- set_se_golomb(&pb, i - COUNT/2);
- STOP_TIMER("set_se_golomb");
- }
- flush_put_bits(&pb);
-
- init_get_bits(&gb, temp, 8*SIZE);
- for(i=0; i<COUNT; i++){
- int j, s;
-
- s= show_bits(&gb, 24);
-
- START_TIMER
- j= get_se_golomb(&gb);
- if(j != i - COUNT/2){
- printf("mismatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s);
-// return -1;
- }
- STOP_TIMER("get_se_golomb");
- }
-
-#if 0
- printf("testing 4x4 (I)DCT\n");
-
- DCTELEM block[16];
- uint8_t src[16], ref[16];
- uint64_t error= 0, max_error=0;
-
- for(i=0; i<COUNT; i++){
- int j;
-// printf("%d %d %d\n", r1, r2, (r2-r1)*16);
- for(j=0; j<16; j++){
- ref[j]= random()%255;
- src[j]= random()%255;
- }
-
- h264_diff_dct_c(block, src, ref, 4);
-
- //normalize
- for(j=0; j<16; j++){
-// printf("%d ", block[j]);
- block[j]= block[j]*4;
- if(j&1) block[j]= (block[j]*4 + 2)/5;
- if(j&4) block[j]= (block[j]*4 + 2)/5;
- }
-// printf("\n");
-
- s->dsp.h264_idct_add(ref, block, 4);
-/* for(j=0; j<16; j++){
- printf("%d ", ref[j]);
- }
- printf("\n");*/
-
- for(j=0; j<16; j++){
- int diff= FFABS(src[j] - ref[j]);
-
- error+= diff*diff;
- max_error= FFMAX(max_error, diff);
- }
- }
- printf("error=%f max_error=%d\n", ((float)error)/COUNT/16, (int)max_error );
- printf("testing quantizer\n");
- for(qp=0; qp<52; qp++){
- for(i=0; i<16; i++)
- src1_block[i]= src2_block[i]= random()%255;
-
- }
- printf("Testing NAL layer\n");
-
- uint8_t bitstream[COUNT];
- uint8_t nal[COUNT*2];
- H264Context h;
- memset(&h, 0, sizeof(H264Context));
-
- for(i=0; i<COUNT; i++){
- int zeros= i;
- int nal_length;
- int consumed;
- int out_length;
- uint8_t *out;
- int j;
-
- for(j=0; j<COUNT; j++){
- bitstream[j]= (random() % 255) + 1;
- }
-
- for(j=0; j<zeros; j++){
- int pos= random() % COUNT;
- while(bitstream[pos] == 0){
- pos++;
- pos %= COUNT;
- }
- bitstream[pos]=0;
- }
-
- START_TIMER
-
- nal_length= encode_nal(&h, nal, bitstream, COUNT, COUNT*2);
- if(nal_length<0){
- printf("encoding failed\n");
- return -1;
- }
-
- out= ff_h264_decode_nal(&h, nal, &out_length, &consumed, nal_length);
-
- STOP_TIMER("NAL")
-
- if(out_length != COUNT){
- printf("incorrect length %d %d\n", out_length, COUNT);
- return -1;
- }
-
- if(consumed != nal_length){
- printf("incorrect consumed length %d %d\n", nal_length, consumed);
- return -1;
- }
-
- if(memcmp(bitstream, out, COUNT)){
- printf("mismatch\n");
- return -1;
- }
- }
-#endif
-
- printf("Testing RBSP\n");
-
-
- return 0;
-}
-#endif /* TEST */
-
-
-av_cold void ff_h264_free_context(H264Context *h)
-{
- int i;
-
- free_tables(h); //FIXME cleanup init stuff perhaps
-
- for(i = 0; i < MAX_SPS_COUNT; i++)
- av_freep(h->sps_buffers + i);
-
- for(i = 0; i < MAX_PPS_COUNT; i++)
- av_freep(h->pps_buffers + i);
-}
-
-av_cold int ff_h264_decode_end(AVCodecContext *avctx)
-{
- H264Context *h = avctx->priv_data;
- MpegEncContext *s = &h->s;
-
- ff_h264_free_context(h);
-
- MPV_common_end(s);
-
-// memset(h, 0, sizeof(H264Context));
-
- return 0;
-}
-
-
-AVCodec h264_decoder = {
- "h264",
- CODEC_TYPE_VIDEO,
- CODEC_ID_H264,
- sizeof(H264Context),
- ff_h264_decode_init,
- NULL,
- ff_h264_decode_end,
- decode_frame,
- /*CODEC_CAP_DRAW_HORIZ_BAND |*/ CODEC_CAP_DR1 | CODEC_CAP_DELAY,
- .flush= flush_dpb,
- .long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
- .pix_fmts= ff_hwaccel_pixfmt_list_420,
-};
-
-#if CONFIG_H264_VDPAU_DECODER
-AVCodec h264_vdpau_decoder = {
- "h264_vdpau",
- CODEC_TYPE_VIDEO,
- CODEC_ID_H264,
- sizeof(H264Context),
- ff_h264_decode_init,
- NULL,
- ff_h264_decode_end,
- decode_frame,
- CODEC_CAP_DR1 | CODEC_CAP_DELAY | CODEC_CAP_HWACCEL_VDPAU,
- .flush= flush_dpb,
- .long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (VDPAU acceleration)"),
- .pix_fmts = (const enum PixelFormat[]){PIX_FMT_VDPAU_H264, PIX_FMT_NONE},
-};
-#endif
Modified: trunk/libavcodec/h264data.h
==============================================================================
--- trunk/libavcodec/h264data.h Tue Jan 12 17:36:23 2010 (r21167)
+++ trunk/libavcodec/h264data.h Tue Jan 12 19:54:40 2010 (r21168)
@@ -1116,8 +1116,4 @@ static const int8_t cabac_context_init_P
}
};
-static const uint8_t sei_num_clock_ts_table[9]={
- 1, 1, 1, 2, 2, 3, 3, 2, 3
-};
-
#endif /* AVCODEC_H264DATA_H */
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