[FFmpeg-cvslog] r19152 - in trunk/libavcodec: Makefile vc1.c vc1dec.c
diego
subversion
Thu Jun 11 11:31:32 CEST 2009
Author: diego
Date: Thu Jun 11 11:31:31 2009
New Revision: 19152
Log:
Split decoder-specific code off from vc1.c into vc1dec.c and keep code
shared between decoder and parser in vc1.c.
Added:
trunk/libavcodec/vc1dec.c
- copied, changed from r19143, trunk/libavcodec/vc1.c
Modified:
trunk/libavcodec/Makefile
trunk/libavcodec/vc1.c
Modified: trunk/libavcodec/Makefile
==============================================================================
--- trunk/libavcodec/Makefile Thu Jun 11 10:16:08 2009 (r19151)
+++ trunk/libavcodec/Makefile Thu Jun 11 11:31:31 2009 (r19152)
@@ -236,9 +236,9 @@ OBJS-$(CONFIG_V210_DECODER) +
OBJS-$(CONFIG_V210_ENCODER) += v210enc.o
OBJS-$(CONFIG_V210X_DECODER) += v210x.o
OBJS-$(CONFIG_VB_DECODER) += vb.o
-OBJS-$(CONFIG_VC1_DECODER) += vc1.o vc1data.o vc1dsp.o msmpeg4data.o h263dec.o h263.o intrax8.o intrax8dsp.o error_resilience.o mpegvideo.o msmpeg4.o
-OBJS-$(CONFIG_VC1_VAAPI_HWACCEL) += vc1.o vc1data.o vc1dsp.o msmpeg4data.o h263dec.o h263.o intrax8.o intrax8dsp.o error_resilience.o mpegvideo.o msmpeg4.o vaapi_vc1.o
-OBJS-$(CONFIG_VC1_VDPAU_DECODER) += vc1.o vc1data.o vc1dsp.o msmpeg4data.o h263dec.o h263.o intrax8.o intrax8dsp.o error_resilience.o mpegvideo.o msmpeg4.o
+OBJS-$(CONFIG_VC1_DECODER) += vc1dec.o vc1.o vc1data.o vc1dsp.o msmpeg4data.o h263dec.o h263.o intrax8.o intrax8dsp.o error_resilience.o mpegvideo.o msmpeg4.o
+OBJS-$(CONFIG_VC1_VAAPI_HWACCEL) += vc1dec.o vc1.o vc1data.o vc1dsp.o msmpeg4data.o h263dec.o h263.o intrax8.o intrax8dsp.o error_resilience.o mpegvideo.o msmpeg4.o vaapi_vc1.o
+OBJS-$(CONFIG_VC1_VDPAU_DECODER) += vc1dec.o vc1.o vc1data.o vc1dsp.o msmpeg4data.o h263dec.o h263.o intrax8.o intrax8dsp.o error_resilience.o mpegvideo.o msmpeg4.o
OBJS-$(CONFIG_VCR1_DECODER) += vcr1.o
OBJS-$(CONFIG_VCR1_ENCODER) += vcr1.o
OBJS-$(CONFIG_VMDAUDIO_DECODER) += vmdav.o
Modified: trunk/libavcodec/vc1.c
==============================================================================
--- trunk/libavcodec/vc1.c Thu Jun 11 10:16:08 2009 (r19151)
+++ trunk/libavcodec/vc1.c Thu Jun 11 11:31:31 2009 (r19152)
@@ -1,5 +1,5 @@
/*
- * VC-1 and WMV3 decoder
+ * VC-1 and WMV3 decoder common code
* Copyright (c) 2006-2007 Konstantin Shishkov
* Partly based on vc9.c (c) 2005 Anonymous, Alex Beregszaszi, Michael Niedermayer
*
@@ -22,7 +22,7 @@
/**
* @file libavcodec/vc1.c
- * VC-1 and WMV3 decoder
+ * VC-1 and WMV3 decoder common code
*
*/
#include "internal.h"
@@ -31,113 +31,13 @@
#include "mpegvideo.h"
#include "vc1.h"
#include "vc1data.h"
-#include "vc1acdata.h"
#include "msmpeg4data.h"
#include "unary.h"
#include "simple_idct.h"
-#include "mathops.h"
-#include "vdpau_internal.h"
#undef NDEBUG
#include <assert.h>
-#define MB_INTRA_VLC_BITS 9
-#define DC_VLC_BITS 9
-#define AC_VLC_BITS 9
-static const uint16_t table_mb_intra[64][2];
-
-
-static const uint16_t vlc_offs[] = {
- 0, 520, 552, 616, 1128, 1160, 1224, 1740, 1772, 1836, 1900, 2436,
- 2986, 3050, 3610, 4154, 4218, 4746, 5326, 5390, 5902, 6554, 7658, 8620,
- 9262, 10202, 10756, 11310, 12228, 15078
-};
-
-/**
- * Init VC-1 specific tables and VC1Context members
- * @param v The VC1Context to initialize
- * @return Status
- */
-static int vc1_init_common(VC1Context *v)
-{
- static int done = 0;
- int i = 0;
- static VLC_TYPE vlc_table[15078][2];
-
- v->hrd_rate = v->hrd_buffer = NULL;
-
- /* VLC tables */
- if(!done)
- {
- INIT_VLC_STATIC(&ff_vc1_bfraction_vlc, VC1_BFRACTION_VLC_BITS, 23,
- ff_vc1_bfraction_bits, 1, 1,
- ff_vc1_bfraction_codes, 1, 1, 1 << VC1_BFRACTION_VLC_BITS);
- INIT_VLC_STATIC(&ff_vc1_norm2_vlc, VC1_NORM2_VLC_BITS, 4,
- ff_vc1_norm2_bits, 1, 1,
- ff_vc1_norm2_codes, 1, 1, 1 << VC1_NORM2_VLC_BITS);
- INIT_VLC_STATIC(&ff_vc1_norm6_vlc, VC1_NORM6_VLC_BITS, 64,
- ff_vc1_norm6_bits, 1, 1,
- ff_vc1_norm6_codes, 2, 2, 556);
- INIT_VLC_STATIC(&ff_vc1_imode_vlc, VC1_IMODE_VLC_BITS, 7,
- ff_vc1_imode_bits, 1, 1,
- ff_vc1_imode_codes, 1, 1, 1 << VC1_IMODE_VLC_BITS);
- for (i=0; i<3; i++)
- {
- ff_vc1_ttmb_vlc[i].table = &vlc_table[vlc_offs[i*3+0]];
- ff_vc1_ttmb_vlc[i].table_allocated = vlc_offs[i*3+1] - vlc_offs[i*3+0];
- init_vlc(&ff_vc1_ttmb_vlc[i], VC1_TTMB_VLC_BITS, 16,
- ff_vc1_ttmb_bits[i], 1, 1,
- ff_vc1_ttmb_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
- ff_vc1_ttblk_vlc[i].table = &vlc_table[vlc_offs[i*3+1]];
- ff_vc1_ttblk_vlc[i].table_allocated = vlc_offs[i*3+2] - vlc_offs[i*3+1];
- init_vlc(&ff_vc1_ttblk_vlc[i], VC1_TTBLK_VLC_BITS, 8,
- ff_vc1_ttblk_bits[i], 1, 1,
- ff_vc1_ttblk_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
- ff_vc1_subblkpat_vlc[i].table = &vlc_table[vlc_offs[i*3+2]];
- ff_vc1_subblkpat_vlc[i].table_allocated = vlc_offs[i*3+3] - vlc_offs[i*3+2];
- init_vlc(&ff_vc1_subblkpat_vlc[i], VC1_SUBBLKPAT_VLC_BITS, 15,
- ff_vc1_subblkpat_bits[i], 1, 1,
- ff_vc1_subblkpat_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
- }
- for(i=0; i<4; i++)
- {
- ff_vc1_4mv_block_pattern_vlc[i].table = &vlc_table[vlc_offs[i*3+9]];
- ff_vc1_4mv_block_pattern_vlc[i].table_allocated = vlc_offs[i*3+10] - vlc_offs[i*3+9];
- init_vlc(&ff_vc1_4mv_block_pattern_vlc[i], VC1_4MV_BLOCK_PATTERN_VLC_BITS, 16,
- ff_vc1_4mv_block_pattern_bits[i], 1, 1,
- ff_vc1_4mv_block_pattern_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
- ff_vc1_cbpcy_p_vlc[i].table = &vlc_table[vlc_offs[i*3+10]];
- ff_vc1_cbpcy_p_vlc[i].table_allocated = vlc_offs[i*3+11] - vlc_offs[i*3+10];
- init_vlc(&ff_vc1_cbpcy_p_vlc[i], VC1_CBPCY_P_VLC_BITS, 64,
- ff_vc1_cbpcy_p_bits[i], 1, 1,
- ff_vc1_cbpcy_p_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
- ff_vc1_mv_diff_vlc[i].table = &vlc_table[vlc_offs[i*3+11]];
- ff_vc1_mv_diff_vlc[i].table_allocated = vlc_offs[i*3+12] - vlc_offs[i*3+11];
- init_vlc(&ff_vc1_mv_diff_vlc[i], VC1_MV_DIFF_VLC_BITS, 73,
- ff_vc1_mv_diff_bits[i], 1, 1,
- ff_vc1_mv_diff_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
- }
- for(i=0; i<8; i++){
- ff_vc1_ac_coeff_table[i].table = &vlc_table[vlc_offs[i+21]];
- ff_vc1_ac_coeff_table[i].table_allocated = vlc_offs[i+22] - vlc_offs[i+21];
- init_vlc(&ff_vc1_ac_coeff_table[i], AC_VLC_BITS, vc1_ac_sizes[i],
- &vc1_ac_tables[i][0][1], 8, 4,
- &vc1_ac_tables[i][0][0], 8, 4, INIT_VLC_USE_NEW_STATIC);
- }
- //FIXME: switching to INIT_VLC_STATIC() results in incorrect decoding
- init_vlc(&ff_msmp4_mb_i_vlc, MB_INTRA_VLC_BITS, 64,
- &ff_msmp4_mb_i_table[0][1], 4, 2,
- &ff_msmp4_mb_i_table[0][0], 4, 2, INIT_VLC_USE_STATIC);
- done = 1;
- }
-
- /* Other defaults */
- v->pq = -1;
- v->mvrange = 0; /* 7.1.1.18, p80 */
-
- return 0;
-}
-
/***********************************************************************/
/**
* @defgroup vc1bitplane VC-1 Bitplane decoding
@@ -333,22 +233,6 @@ static int bitplane_decoding(uint8_t* da
/** @} */ //Bitplane group
-static void vc1_loop_filter_iblk(MpegEncContext *s, int pq)
-{
- int i, j;
- if(!s->first_slice_line)
- s->dsp.vc1_v_loop_filter16(s->dest[0], s->linesize, pq);
- s->dsp.vc1_v_loop_filter16(s->dest[0] + 8*s->linesize, s->linesize, pq);
- for(i = !s->mb_x*8; i < 16; i += 8)
- s->dsp.vc1_h_loop_filter16(s->dest[0] + i, s->linesize, pq);
- for(j = 0; j < 2; j++){
- if(!s->first_slice_line)
- s->dsp.vc1_v_loop_filter8(s->dest[j+1], s->uvlinesize, pq);
- if(s->mb_x)
- s->dsp.vc1_h_loop_filter8(s->dest[j+1], s->uvlinesize, pq);
- }
-}
-
/***********************************************************************/
/** VOP Dquant decoding
* @param v VC-1 Context
@@ -394,408 +278,6 @@ static int vop_dquant_decoding(VC1Contex
return 0;
}
-/** Put block onto picture
- */
-static void vc1_put_block(VC1Context *v, DCTELEM block[6][64])
-{
- uint8_t *Y;
- int ys, us, vs;
- DSPContext *dsp = &v->s.dsp;
-
- if(v->rangeredfrm) {
- int i, j, k;
- for(k = 0; k < 6; k++)
- for(j = 0; j < 8; j++)
- for(i = 0; i < 8; i++)
- block[k][i + j*8] = ((block[k][i + j*8] - 128) << 1) + 128;
-
- }
- ys = v->s.current_picture.linesize[0];
- us = v->s.current_picture.linesize[1];
- vs = v->s.current_picture.linesize[2];
- Y = v->s.dest[0];
-
- dsp->put_pixels_clamped(block[0], Y, ys);
- dsp->put_pixels_clamped(block[1], Y + 8, ys);
- Y += ys * 8;
- dsp->put_pixels_clamped(block[2], Y, ys);
- dsp->put_pixels_clamped(block[3], Y + 8, ys);
-
- if(!(v->s.flags & CODEC_FLAG_GRAY)) {
- dsp->put_pixels_clamped(block[4], v->s.dest[1], us);
- dsp->put_pixels_clamped(block[5], v->s.dest[2], vs);
- }
-}
-
-/** Do motion compensation over 1 macroblock
- * Mostly adapted hpel_motion and qpel_motion from mpegvideo.c
- */
-static void vc1_mc_1mv(VC1Context *v, int dir)
-{
- MpegEncContext *s = &v->s;
- DSPContext *dsp = &v->s.dsp;
- uint8_t *srcY, *srcU, *srcV;
- int dxy, mx, my, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y;
-
- if(!v->s.last_picture.data[0])return;
-
- mx = s->mv[dir][0][0];
- my = s->mv[dir][0][1];
-
- // store motion vectors for further use in B frames
- if(s->pict_type == FF_P_TYPE) {
- s->current_picture.motion_val[1][s->block_index[0]][0] = mx;
- s->current_picture.motion_val[1][s->block_index[0]][1] = my;
- }
- uvmx = (mx + ((mx & 3) == 3)) >> 1;
- uvmy = (my + ((my & 3) == 3)) >> 1;
- if(v->fastuvmc) {
- uvmx = uvmx + ((uvmx<0)?(uvmx&1):-(uvmx&1));
- uvmy = uvmy + ((uvmy<0)?(uvmy&1):-(uvmy&1));
- }
- if(!dir) {
- srcY = s->last_picture.data[0];
- srcU = s->last_picture.data[1];
- srcV = s->last_picture.data[2];
- } else {
- srcY = s->next_picture.data[0];
- srcU = s->next_picture.data[1];
- srcV = s->next_picture.data[2];
- }
-
- src_x = s->mb_x * 16 + (mx >> 2);
- src_y = s->mb_y * 16 + (my >> 2);
- uvsrc_x = s->mb_x * 8 + (uvmx >> 2);
- uvsrc_y = s->mb_y * 8 + (uvmy >> 2);
-
- if(v->profile != PROFILE_ADVANCED){
- src_x = av_clip( src_x, -16, s->mb_width * 16);
- src_y = av_clip( src_y, -16, s->mb_height * 16);
- uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8);
- uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8);
- }else{
- src_x = av_clip( src_x, -17, s->avctx->coded_width);
- src_y = av_clip( src_y, -18, s->avctx->coded_height + 1);
- uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1);
- uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1);
- }
-
- srcY += src_y * s->linesize + src_x;
- srcU += uvsrc_y * s->uvlinesize + uvsrc_x;
- srcV += uvsrc_y * s->uvlinesize + uvsrc_x;
-
- /* for grayscale we should not try to read from unknown area */
- if(s->flags & CODEC_FLAG_GRAY) {
- srcU = s->edge_emu_buffer + 18 * s->linesize;
- srcV = s->edge_emu_buffer + 18 * s->linesize;
- }
-
- if(v->rangeredfrm || (v->mv_mode == MV_PMODE_INTENSITY_COMP)
- || (unsigned)(src_x - s->mspel) > s->h_edge_pos - (mx&3) - 16 - s->mspel*3
- || (unsigned)(src_y - s->mspel) > s->v_edge_pos - (my&3) - 16 - s->mspel*3){
- uint8_t *uvbuf= s->edge_emu_buffer + 19 * s->linesize;
-
- srcY -= s->mspel * (1 + s->linesize);
- ff_emulated_edge_mc(s->edge_emu_buffer, srcY, s->linesize, 17+s->mspel*2, 17+s->mspel*2,
- src_x - s->mspel, src_y - s->mspel, s->h_edge_pos, s->v_edge_pos);
- srcY = s->edge_emu_buffer;
- ff_emulated_edge_mc(uvbuf , srcU, s->uvlinesize, 8+1, 8+1,
- uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
- ff_emulated_edge_mc(uvbuf + 16, srcV, s->uvlinesize, 8+1, 8+1,
- uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
- srcU = uvbuf;
- srcV = uvbuf + 16;
- /* if we deal with range reduction we need to scale source blocks */
- if(v->rangeredfrm) {
- int i, j;
- uint8_t *src, *src2;
-
- src = srcY;
- for(j = 0; j < 17 + s->mspel*2; j++) {
- for(i = 0; i < 17 + s->mspel*2; i++) src[i] = ((src[i] - 128) >> 1) + 128;
- src += s->linesize;
- }
- src = srcU; src2 = srcV;
- for(j = 0; j < 9; j++) {
- for(i = 0; i < 9; i++) {
- src[i] = ((src[i] - 128) >> 1) + 128;
- src2[i] = ((src2[i] - 128) >> 1) + 128;
- }
- src += s->uvlinesize;
- src2 += s->uvlinesize;
- }
- }
- /* if we deal with intensity compensation we need to scale source blocks */
- if(v->mv_mode == MV_PMODE_INTENSITY_COMP) {
- int i, j;
- uint8_t *src, *src2;
-
- src = srcY;
- for(j = 0; j < 17 + s->mspel*2; j++) {
- for(i = 0; i < 17 + s->mspel*2; i++) src[i] = v->luty[src[i]];
- src += s->linesize;
- }
- src = srcU; src2 = srcV;
- for(j = 0; j < 9; j++) {
- for(i = 0; i < 9; i++) {
- src[i] = v->lutuv[src[i]];
- src2[i] = v->lutuv[src2[i]];
- }
- src += s->uvlinesize;
- src2 += s->uvlinesize;
- }
- }
- srcY += s->mspel * (1 + s->linesize);
- }
-
- if(s->mspel) {
- dxy = ((my & 3) << 2) | (mx & 3);
- dsp->put_vc1_mspel_pixels_tab[dxy](s->dest[0] , srcY , s->linesize, v->rnd);
- dsp->put_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8, srcY + 8, s->linesize, v->rnd);
- srcY += s->linesize * 8;
- dsp->put_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8 * s->linesize , srcY , s->linesize, v->rnd);
- dsp->put_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8 * s->linesize + 8, srcY + 8, s->linesize, v->rnd);
- } else { // hpel mc - always used for luma
- dxy = (my & 2) | ((mx & 2) >> 1);
-
- if(!v->rnd)
- dsp->put_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16);
- else
- dsp->put_no_rnd_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16);
- }
-
- if(s->flags & CODEC_FLAG_GRAY) return;
- /* Chroma MC always uses qpel bilinear */
- uvmx = (uvmx&3)<<1;
- uvmy = (uvmy&3)<<1;
- if(!v->rnd){
- dsp->put_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
- dsp->put_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
- }else{
- dsp->put_no_rnd_vc1_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
- dsp->put_no_rnd_vc1_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
- }
-}
-
-/** Do motion compensation for 4-MV macroblock - luminance block
- */
-static void vc1_mc_4mv_luma(VC1Context *v, int n)
-{
- MpegEncContext *s = &v->s;
- DSPContext *dsp = &v->s.dsp;
- uint8_t *srcY;
- int dxy, mx, my, src_x, src_y;
- int off;
-
- if(!v->s.last_picture.data[0])return;
- mx = s->mv[0][n][0];
- my = s->mv[0][n][1];
- srcY = s->last_picture.data[0];
-
- off = s->linesize * 4 * (n&2) + (n&1) * 8;
-
- src_x = s->mb_x * 16 + (n&1) * 8 + (mx >> 2);
- src_y = s->mb_y * 16 + (n&2) * 4 + (my >> 2);
-
- if(v->profile != PROFILE_ADVANCED){
- src_x = av_clip( src_x, -16, s->mb_width * 16);
- src_y = av_clip( src_y, -16, s->mb_height * 16);
- }else{
- src_x = av_clip( src_x, -17, s->avctx->coded_width);
- src_y = av_clip( src_y, -18, s->avctx->coded_height + 1);
- }
-
- srcY += src_y * s->linesize + src_x;
-
- if(v->rangeredfrm || (v->mv_mode == MV_PMODE_INTENSITY_COMP)
- || (unsigned)(src_x - s->mspel) > s->h_edge_pos - (mx&3) - 8 - s->mspel*2
- || (unsigned)(src_y - s->mspel) > s->v_edge_pos - (my&3) - 8 - s->mspel*2){
- srcY -= s->mspel * (1 + s->linesize);
- ff_emulated_edge_mc(s->edge_emu_buffer, srcY, s->linesize, 9+s->mspel*2, 9+s->mspel*2,
- src_x - s->mspel, src_y - s->mspel, s->h_edge_pos, s->v_edge_pos);
- srcY = s->edge_emu_buffer;
- /* if we deal with range reduction we need to scale source blocks */
- if(v->rangeredfrm) {
- int i, j;
- uint8_t *src;
-
- src = srcY;
- for(j = 0; j < 9 + s->mspel*2; j++) {
- for(i = 0; i < 9 + s->mspel*2; i++) src[i] = ((src[i] - 128) >> 1) + 128;
- src += s->linesize;
- }
- }
- /* if we deal with intensity compensation we need to scale source blocks */
- if(v->mv_mode == MV_PMODE_INTENSITY_COMP) {
- int i, j;
- uint8_t *src;
-
- src = srcY;
- for(j = 0; j < 9 + s->mspel*2; j++) {
- for(i = 0; i < 9 + s->mspel*2; i++) src[i] = v->luty[src[i]];
- src += s->linesize;
- }
- }
- srcY += s->mspel * (1 + s->linesize);
- }
-
- if(s->mspel) {
- dxy = ((my & 3) << 2) | (mx & 3);
- dsp->put_vc1_mspel_pixels_tab[dxy](s->dest[0] + off, srcY, s->linesize, v->rnd);
- } else { // hpel mc - always used for luma
- dxy = (my & 2) | ((mx & 2) >> 1);
- if(!v->rnd)
- dsp->put_pixels_tab[1][dxy](s->dest[0] + off, srcY, s->linesize, 8);
- else
- dsp->put_no_rnd_pixels_tab[1][dxy](s->dest[0] + off, srcY, s->linesize, 8);
- }
-}
-
-static inline int median4(int a, int b, int c, int d)
-{
- if(a < b) {
- if(c < d) return (FFMIN(b, d) + FFMAX(a, c)) / 2;
- else return (FFMIN(b, c) + FFMAX(a, d)) / 2;
- } else {
- if(c < d) return (FFMIN(a, d) + FFMAX(b, c)) / 2;
- else return (FFMIN(a, c) + FFMAX(b, d)) / 2;
- }
-}
-
-
-/** Do motion compensation for 4-MV macroblock - both chroma blocks
- */
-static void vc1_mc_4mv_chroma(VC1Context *v)
-{
- MpegEncContext *s = &v->s;
- DSPContext *dsp = &v->s.dsp;
- uint8_t *srcU, *srcV;
- int uvmx, uvmy, uvsrc_x, uvsrc_y;
- int i, idx, tx = 0, ty = 0;
- int mvx[4], mvy[4], intra[4];
- static const int count[16] = { 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4};
-
- if(!v->s.last_picture.data[0])return;
- if(s->flags & CODEC_FLAG_GRAY) return;
-
- for(i = 0; i < 4; i++) {
- mvx[i] = s->mv[0][i][0];
- mvy[i] = s->mv[0][i][1];
- intra[i] = v->mb_type[0][s->block_index[i]];
- }
-
- /* calculate chroma MV vector from four luma MVs */
- idx = (intra[3] << 3) | (intra[2] << 2) | (intra[1] << 1) | intra[0];
- if(!idx) { // all blocks are inter
- tx = median4(mvx[0], mvx[1], mvx[2], mvx[3]);
- ty = median4(mvy[0], mvy[1], mvy[2], mvy[3]);
- } else if(count[idx] == 1) { // 3 inter blocks
- switch(idx) {
- case 0x1:
- tx = mid_pred(mvx[1], mvx[2], mvx[3]);
- ty = mid_pred(mvy[1], mvy[2], mvy[3]);
- break;
- case 0x2:
- tx = mid_pred(mvx[0], mvx[2], mvx[3]);
- ty = mid_pred(mvy[0], mvy[2], mvy[3]);
- break;
- case 0x4:
- tx = mid_pred(mvx[0], mvx[1], mvx[3]);
- ty = mid_pred(mvy[0], mvy[1], mvy[3]);
- break;
- case 0x8:
- tx = mid_pred(mvx[0], mvx[1], mvx[2]);
- ty = mid_pred(mvy[0], mvy[1], mvy[2]);
- break;
- }
- } else if(count[idx] == 2) {
- int t1 = 0, t2 = 0;
- for(i=0; i<3;i++) if(!intra[i]) {t1 = i; break;}
- for(i= t1+1; i<4; i++)if(!intra[i]) {t2 = i; break;}
- tx = (mvx[t1] + mvx[t2]) / 2;
- ty = (mvy[t1] + mvy[t2]) / 2;
- } else {
- s->current_picture.motion_val[1][s->block_index[0]][0] = 0;
- s->current_picture.motion_val[1][s->block_index[0]][1] = 0;
- return; //no need to do MC for inter blocks
- }
-
- s->current_picture.motion_val[1][s->block_index[0]][0] = tx;
- s->current_picture.motion_val[1][s->block_index[0]][1] = ty;
- uvmx = (tx + ((tx&3) == 3)) >> 1;
- uvmy = (ty + ((ty&3) == 3)) >> 1;
- if(v->fastuvmc) {
- uvmx = uvmx + ((uvmx<0)?(uvmx&1):-(uvmx&1));
- uvmy = uvmy + ((uvmy<0)?(uvmy&1):-(uvmy&1));
- }
-
- uvsrc_x = s->mb_x * 8 + (uvmx >> 2);
- uvsrc_y = s->mb_y * 8 + (uvmy >> 2);
-
- if(v->profile != PROFILE_ADVANCED){
- uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8);
- uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8);
- }else{
- uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1);
- uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1);
- }
-
- srcU = s->last_picture.data[1] + uvsrc_y * s->uvlinesize + uvsrc_x;
- srcV = s->last_picture.data[2] + uvsrc_y * s->uvlinesize + uvsrc_x;
- if(v->rangeredfrm || (v->mv_mode == MV_PMODE_INTENSITY_COMP)
- || (unsigned)uvsrc_x > (s->h_edge_pos >> 1) - 9
- || (unsigned)uvsrc_y > (s->v_edge_pos >> 1) - 9){
- ff_emulated_edge_mc(s->edge_emu_buffer , srcU, s->uvlinesize, 8+1, 8+1,
- uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
- ff_emulated_edge_mc(s->edge_emu_buffer + 16, srcV, s->uvlinesize, 8+1, 8+1,
- uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
- srcU = s->edge_emu_buffer;
- srcV = s->edge_emu_buffer + 16;
-
- /* if we deal with range reduction we need to scale source blocks */
- if(v->rangeredfrm) {
- int i, j;
- uint8_t *src, *src2;
-
- src = srcU; src2 = srcV;
- for(j = 0; j < 9; j++) {
- for(i = 0; i < 9; i++) {
- src[i] = ((src[i] - 128) >> 1) + 128;
- src2[i] = ((src2[i] - 128) >> 1) + 128;
- }
- src += s->uvlinesize;
- src2 += s->uvlinesize;
- }
- }
- /* if we deal with intensity compensation we need to scale source blocks */
- if(v->mv_mode == MV_PMODE_INTENSITY_COMP) {
- int i, j;
- uint8_t *src, *src2;
-
- src = srcU; src2 = srcV;
- for(j = 0; j < 9; j++) {
- for(i = 0; i < 9; i++) {
- src[i] = v->lutuv[src[i]];
- src2[i] = v->lutuv[src2[i]];
- }
- src += s->uvlinesize;
- src2 += s->uvlinesize;
- }
- }
- }
-
- /* Chroma MC always uses qpel bilinear */
- uvmx = (uvmx&3)<<1;
- uvmy = (uvmy&3)<<1;
- if(!v->rnd){
- dsp->put_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
- dsp->put_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
- }else{
- dsp->put_no_rnd_vc1_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
- dsp->put_no_rnd_vc1_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
- }
-}
-
static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb);
/**
@@ -1541,2788 +1023,3 @@ int vc1_parse_frame_header_adv(VC1Contex
}
return 0;
}
-
-/***********************************************************************/
-/**
- * @defgroup vc1block VC-1 Block-level functions
- * @see 7.1.4, p91 and 8.1.1.7, p(1)04
- * @{
- */
-
-/**
- * @def GET_MQUANT
- * @brief Get macroblock-level quantizer scale
- */
-#define GET_MQUANT() \
- if (v->dquantfrm) \
- { \
- int edges = 0; \
- if (v->dqprofile == DQPROFILE_ALL_MBS) \
- { \
- if (v->dqbilevel) \
- { \
- mquant = (get_bits1(gb)) ? v->altpq : v->pq; \
- } \
- else \
- { \
- mqdiff = get_bits(gb, 3); \
- if (mqdiff != 7) mquant = v->pq + mqdiff; \
- else mquant = get_bits(gb, 5); \
- } \
- } \
- if(v->dqprofile == DQPROFILE_SINGLE_EDGE) \
- edges = 1 << v->dqsbedge; \
- else if(v->dqprofile == DQPROFILE_DOUBLE_EDGES) \
- edges = (3 << v->dqsbedge) % 15; \
- else if(v->dqprofile == DQPROFILE_FOUR_EDGES) \
- edges = 15; \
- if((edges&1) && !s->mb_x) \
- mquant = v->altpq; \
- if((edges&2) && s->first_slice_line) \
- mquant = v->altpq; \
- if((edges&4) && s->mb_x == (s->mb_width - 1)) \
- mquant = v->altpq; \
- if((edges&8) && s->mb_y == (s->mb_height - 1)) \
- mquant = v->altpq; \
- }
-
-/**
- * @def GET_MVDATA(_dmv_x, _dmv_y)
- * @brief Get MV differentials
- * @see MVDATA decoding from 8.3.5.2, p(1)20
- * @param _dmv_x Horizontal differential for decoded MV
- * @param _dmv_y Vertical differential for decoded MV
- */
-#define GET_MVDATA(_dmv_x, _dmv_y) \
- index = 1 + get_vlc2(gb, ff_vc1_mv_diff_vlc[s->mv_table_index].table,\
- VC1_MV_DIFF_VLC_BITS, 2); \
- if (index > 36) \
- { \
- mb_has_coeffs = 1; \
- index -= 37; \
- } \
- else mb_has_coeffs = 0; \
- s->mb_intra = 0; \
- if (!index) { _dmv_x = _dmv_y = 0; } \
- else if (index == 35) \
- { \
- _dmv_x = get_bits(gb, v->k_x - 1 + s->quarter_sample); \
- _dmv_y = get_bits(gb, v->k_y - 1 + s->quarter_sample); \
- } \
- else if (index == 36) \
- { \
- _dmv_x = 0; \
- _dmv_y = 0; \
- s->mb_intra = 1; \
- } \
- else \
- { \
- index1 = index%6; \
- if (!s->quarter_sample && index1 == 5) val = 1; \
- else val = 0; \
- if(size_table[index1] - val > 0) \
- val = get_bits(gb, size_table[index1] - val); \
- else val = 0; \
- sign = 0 - (val&1); \
- _dmv_x = (sign ^ ((val>>1) + offset_table[index1])) - sign; \
- \
- index1 = index/6; \
- if (!s->quarter_sample && index1 == 5) val = 1; \
- else val = 0; \
- if(size_table[index1] - val > 0) \
- val = get_bits(gb, size_table[index1] - val); \
- else val = 0; \
- sign = 0 - (val&1); \
- _dmv_y = (sign ^ ((val>>1) + offset_table[index1])) - sign; \
- }
-
-/** Predict and set motion vector
- */
-static inline void vc1_pred_mv(MpegEncContext *s, int n, int dmv_x, int dmv_y, int mv1, int r_x, int r_y, uint8_t* is_intra)
-{
- int xy, wrap, off = 0;
- int16_t *A, *B, *C;
- int px, py;
- int sum;
-
- /* scale MV difference to be quad-pel */
- dmv_x <<= 1 - s->quarter_sample;
- dmv_y <<= 1 - s->quarter_sample;
-
- wrap = s->b8_stride;
- xy = s->block_index[n];
-
- if(s->mb_intra){
- s->mv[0][n][0] = s->current_picture.motion_val[0][xy][0] = 0;
- s->mv[0][n][1] = s->current_picture.motion_val[0][xy][1] = 0;
- s->current_picture.motion_val[1][xy][0] = 0;
- s->current_picture.motion_val[1][xy][1] = 0;
- if(mv1) { /* duplicate motion data for 1-MV block */
- s->current_picture.motion_val[0][xy + 1][0] = 0;
- s->current_picture.motion_val[0][xy + 1][1] = 0;
- s->current_picture.motion_val[0][xy + wrap][0] = 0;
- s->current_picture.motion_val[0][xy + wrap][1] = 0;
- s->current_picture.motion_val[0][xy + wrap + 1][0] = 0;
- s->current_picture.motion_val[0][xy + wrap + 1][1] = 0;
- s->current_picture.motion_val[1][xy + 1][0] = 0;
- s->current_picture.motion_val[1][xy + 1][1] = 0;
- s->current_picture.motion_val[1][xy + wrap][0] = 0;
- s->current_picture.motion_val[1][xy + wrap][1] = 0;
- s->current_picture.motion_val[1][xy + wrap + 1][0] = 0;
- s->current_picture.motion_val[1][xy + wrap + 1][1] = 0;
- }
- return;
- }
-
- C = s->current_picture.motion_val[0][xy - 1];
- A = s->current_picture.motion_val[0][xy - wrap];
- if(mv1)
- off = (s->mb_x == (s->mb_width - 1)) ? -1 : 2;
- else {
- //in 4-MV mode different blocks have different B predictor position
- switch(n){
- case 0:
- off = (s->mb_x > 0) ? -1 : 1;
- break;
- case 1:
- off = (s->mb_x == (s->mb_width - 1)) ? -1 : 1;
- break;
- case 2:
- off = 1;
- break;
- case 3:
- off = -1;
- }
- }
- B = s->current_picture.motion_val[0][xy - wrap + off];
-
- if(!s->first_slice_line || (n==2 || n==3)) { // predictor A is not out of bounds
- if(s->mb_width == 1) {
- px = A[0];
- py = A[1];
- } else {
- px = mid_pred(A[0], B[0], C[0]);
- py = mid_pred(A[1], B[1], C[1]);
- }
- } else if(s->mb_x || (n==1 || n==3)) { // predictor C is not out of bounds
- px = C[0];
- py = C[1];
- } else {
- px = py = 0;
- }
- /* Pullback MV as specified in 8.3.5.3.4 */
- {
- int qx, qy, X, Y;
- qx = (s->mb_x << 6) + ((n==1 || n==3) ? 32 : 0);
- qy = (s->mb_y << 6) + ((n==2 || n==3) ? 32 : 0);
- X = (s->mb_width << 6) - 4;
- Y = (s->mb_height << 6) - 4;
- if(mv1) {
- if(qx + px < -60) px = -60 - qx;
- if(qy + py < -60) py = -60 - qy;
- } else {
- if(qx + px < -28) px = -28 - qx;
- if(qy + py < -28) py = -28 - qy;
- }
- if(qx + px > X) px = X - qx;
- if(qy + py > Y) py = Y - qy;
- }
- /* Calculate hybrid prediction as specified in 8.3.5.3.5 */
- if((!s->first_slice_line || (n==2 || n==3)) && (s->mb_x || (n==1 || n==3))) {
- if(is_intra[xy - wrap])
- sum = FFABS(px) + FFABS(py);
- else
- sum = FFABS(px - A[0]) + FFABS(py - A[1]);
- if(sum > 32) {
- if(get_bits1(&s->gb)) {
- px = A[0];
- py = A[1];
- } else {
- px = C[0];
- py = C[1];
- }
- } else {
- if(is_intra[xy - 1])
- sum = FFABS(px) + FFABS(py);
- else
- sum = FFABS(px - C[0]) + FFABS(py - C[1]);
- if(sum > 32) {
- if(get_bits1(&s->gb)) {
- px = A[0];
- py = A[1];
- } else {
- px = C[0];
- py = C[1];
- }
- }
- }
- }
- /* store MV using signed modulus of MV range defined in 4.11 */
- s->mv[0][n][0] = s->current_picture.motion_val[0][xy][0] = ((px + dmv_x + r_x) & ((r_x << 1) - 1)) - r_x;
- s->mv[0][n][1] = s->current_picture.motion_val[0][xy][1] = ((py + dmv_y + r_y) & ((r_y << 1) - 1)) - r_y;
- if(mv1) { /* duplicate motion data for 1-MV block */
- s->current_picture.motion_val[0][xy + 1][0] = s->current_picture.motion_val[0][xy][0];
- s->current_picture.motion_val[0][xy + 1][1] = s->current_picture.motion_val[0][xy][1];
- s->current_picture.motion_val[0][xy + wrap][0] = s->current_picture.motion_val[0][xy][0];
- s->current_picture.motion_val[0][xy + wrap][1] = s->current_picture.motion_val[0][xy][1];
- s->current_picture.motion_val[0][xy + wrap + 1][0] = s->current_picture.motion_val[0][xy][0];
- s->current_picture.motion_val[0][xy + wrap + 1][1] = s->current_picture.motion_val[0][xy][1];
- }
-}
-
-/** Motion compensation for direct or interpolated blocks in B-frames
- */
-static void vc1_interp_mc(VC1Context *v)
-{
- MpegEncContext *s = &v->s;
- DSPContext *dsp = &v->s.dsp;
- uint8_t *srcY, *srcU, *srcV;
- int dxy, mx, my, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y;
-
- if(!v->s.next_picture.data[0])return;
-
- mx = s->mv[1][0][0];
- my = s->mv[1][0][1];
- uvmx = (mx + ((mx & 3) == 3)) >> 1;
- uvmy = (my + ((my & 3) == 3)) >> 1;
- if(v->fastuvmc) {
- uvmx = uvmx + ((uvmx<0)?-(uvmx&1):(uvmx&1));
- uvmy = uvmy + ((uvmy<0)?-(uvmy&1):(uvmy&1));
- }
- srcY = s->next_picture.data[0];
- srcU = s->next_picture.data[1];
- srcV = s->next_picture.data[2];
-
- src_x = s->mb_x * 16 + (mx >> 2);
- src_y = s->mb_y * 16 + (my >> 2);
- uvsrc_x = s->mb_x * 8 + (uvmx >> 2);
- uvsrc_y = s->mb_y * 8 + (uvmy >> 2);
-
- if(v->profile != PROFILE_ADVANCED){
- src_x = av_clip( src_x, -16, s->mb_width * 16);
- src_y = av_clip( src_y, -16, s->mb_height * 16);
- uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8);
- uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8);
- }else{
- src_x = av_clip( src_x, -17, s->avctx->coded_width);
- src_y = av_clip( src_y, -18, s->avctx->coded_height + 1);
- uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1);
- uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1);
- }
-
- srcY += src_y * s->linesize + src_x;
- srcU += uvsrc_y * s->uvlinesize + uvsrc_x;
- srcV += uvsrc_y * s->uvlinesize + uvsrc_x;
-
- /* for grayscale we should not try to read from unknown area */
- if(s->flags & CODEC_FLAG_GRAY) {
- srcU = s->edge_emu_buffer + 18 * s->linesize;
- srcV = s->edge_emu_buffer + 18 * s->linesize;
- }
-
- if(v->rangeredfrm
- || (unsigned)src_x > s->h_edge_pos - (mx&3) - 16 - s->mspel*3
- || (unsigned)src_y > s->v_edge_pos - (my&3) - 16 - s->mspel*3){
- uint8_t *uvbuf= s->edge_emu_buffer + 19 * s->linesize;
-
- srcY -= s->mspel * (1 + s->linesize);
- ff_emulated_edge_mc(s->edge_emu_buffer, srcY, s->linesize, 17+s->mspel*2, 17+s->mspel*2,
- src_x - s->mspel, src_y - s->mspel, s->h_edge_pos, s->v_edge_pos);
- srcY = s->edge_emu_buffer;
- ff_emulated_edge_mc(uvbuf , srcU, s->uvlinesize, 8+1, 8+1,
- uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
- ff_emulated_edge_mc(uvbuf + 16, srcV, s->uvlinesize, 8+1, 8+1,
- uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1);
- srcU = uvbuf;
- srcV = uvbuf + 16;
- /* if we deal with range reduction we need to scale source blocks */
- if(v->rangeredfrm) {
- int i, j;
- uint8_t *src, *src2;
-
- src = srcY;
- for(j = 0; j < 17 + s->mspel*2; j++) {
- for(i = 0; i < 17 + s->mspel*2; i++) src[i] = ((src[i] - 128) >> 1) + 128;
- src += s->linesize;
- }
- src = srcU; src2 = srcV;
- for(j = 0; j < 9; j++) {
- for(i = 0; i < 9; i++) {
- src[i] = ((src[i] - 128) >> 1) + 128;
- src2[i] = ((src2[i] - 128) >> 1) + 128;
- }
- src += s->uvlinesize;
- src2 += s->uvlinesize;
- }
- }
- srcY += s->mspel * (1 + s->linesize);
- }
-
- if(s->mspel) {
- dxy = ((my & 3) << 2) | (mx & 3);
- dsp->avg_vc1_mspel_pixels_tab[dxy](s->dest[0] , srcY , s->linesize, v->rnd);
- dsp->avg_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8, srcY + 8, s->linesize, v->rnd);
- srcY += s->linesize * 8;
- dsp->avg_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8 * s->linesize , srcY , s->linesize, v->rnd);
- dsp->avg_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8 * s->linesize + 8, srcY + 8, s->linesize, v->rnd);
- } else { // hpel mc
- dxy = (my & 2) | ((mx & 2) >> 1);
-
- if(!v->rnd)
- dsp->avg_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16);
- else
- dsp->avg_no_rnd_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16);
- }
-
- if(s->flags & CODEC_FLAG_GRAY) return;
- /* Chroma MC always uses qpel blilinear */
- uvmx = (uvmx&3)<<1;
- uvmy = (uvmy&3)<<1;
- if(!v->rnd){
- dsp->avg_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
- dsp->avg_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
- }else{
- dsp->avg_no_rnd_vc1_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
- dsp->avg_no_rnd_vc1_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
- }
-}
-
-static av_always_inline int scale_mv(int value, int bfrac, int inv, int qs)
-{
- int n = bfrac;
-
-#if B_FRACTION_DEN==256
- if(inv)
- n -= 256;
- if(!qs)
- return 2 * ((value * n + 255) >> 9);
- return (value * n + 128) >> 8;
-#else
- if(inv)
- n -= B_FRACTION_DEN;
- if(!qs)
- return 2 * ((value * n + B_FRACTION_DEN - 1) / (2 * B_FRACTION_DEN));
- return (value * n + B_FRACTION_DEN/2) / B_FRACTION_DEN;
-#endif
-}
-
-/** Reconstruct motion vector for B-frame and do motion compensation
- */
-static inline void vc1_b_mc(VC1Context *v, int dmv_x[2], int dmv_y[2], int direct, int mode)
-{
- if(v->use_ic) {
- v->mv_mode2 = v->mv_mode;
- v->mv_mode = MV_PMODE_INTENSITY_COMP;
- }
- if(direct) {
- vc1_mc_1mv(v, 0);
- vc1_interp_mc(v);
- if(v->use_ic) v->mv_mode = v->mv_mode2;
- return;
- }
- if(mode == BMV_TYPE_INTERPOLATED) {
- vc1_mc_1mv(v, 0);
- vc1_interp_mc(v);
- if(v->use_ic) v->mv_mode = v->mv_mode2;
- return;
- }
-
- if(v->use_ic && (mode == BMV_TYPE_BACKWARD)) v->mv_mode = v->mv_mode2;
- vc1_mc_1mv(v, (mode == BMV_TYPE_BACKWARD));
- if(v->use_ic) v->mv_mode = v->mv_mode2;
-}
-
-static inline void vc1_pred_b_mv(VC1Context *v, int dmv_x[2], int dmv_y[2], int direct, int mvtype)
-{
- MpegEncContext *s = &v->s;
- int xy, wrap, off = 0;
- int16_t *A, *B, *C;
- int px, py;
- int sum;
- int r_x, r_y;
- const uint8_t *is_intra = v->mb_type[0];
-
- r_x = v->range_x;
- r_y = v->range_y;
- /* scale MV difference to be quad-pel */
- dmv_x[0] <<= 1 - s->quarter_sample;
- dmv_y[0] <<= 1 - s->quarter_sample;
- dmv_x[1] <<= 1 - s->quarter_sample;
- dmv_y[1] <<= 1 - s->quarter_sample;
-
- wrap = s->b8_stride;
- xy = s->block_index[0];
-
- if(s->mb_intra) {
- s->current_picture.motion_val[0][xy][0] =
- s->current_picture.motion_val[0][xy][1] =
- s->current_picture.motion_val[1][xy][0] =
- s->current_picture.motion_val[1][xy][1] = 0;
- return;
- }
- s->mv[0][0][0] = scale_mv(s->next_picture.motion_val[1][xy][0], v->bfraction, 0, s->quarter_sample);
- s->mv[0][0][1] = scale_mv(s->next_picture.motion_val[1][xy][1], v->bfraction, 0, s->quarter_sample);
- s->mv[1][0][0] = scale_mv(s->next_picture.motion_val[1][xy][0], v->bfraction, 1, s->quarter_sample);
- s->mv[1][0][1] = scale_mv(s->next_picture.motion_val[1][xy][1], v->bfraction, 1, s->quarter_sample);
-
- /* Pullback predicted motion vectors as specified in 8.4.5.4 */
- s->mv[0][0][0] = av_clip(s->mv[0][0][0], -60 - (s->mb_x << 6), (s->mb_width << 6) - 4 - (s->mb_x << 6));
- s->mv[0][0][1] = av_clip(s->mv[0][0][1], -60 - (s->mb_y << 6), (s->mb_height << 6) - 4 - (s->mb_y << 6));
- s->mv[1][0][0] = av_clip(s->mv[1][0][0], -60 - (s->mb_x << 6), (s->mb_width << 6) - 4 - (s->mb_x << 6));
- s->mv[1][0][1] = av_clip(s->mv[1][0][1], -60 - (s->mb_y << 6), (s->mb_height << 6) - 4 - (s->mb_y << 6));
- if(direct) {
- s->current_picture.motion_val[0][xy][0] = s->mv[0][0][0];
- s->current_picture.motion_val[0][xy][1] = s->mv[0][0][1];
- s->current_picture.motion_val[1][xy][0] = s->mv[1][0][0];
- s->current_picture.motion_val[1][xy][1] = s->mv[1][0][1];
- return;
- }
-
- if((mvtype == BMV_TYPE_FORWARD) || (mvtype == BMV_TYPE_INTERPOLATED)) {
- C = s->current_picture.motion_val[0][xy - 2];
- A = s->current_picture.motion_val[0][xy - wrap*2];
- off = (s->mb_x == (s->mb_width - 1)) ? -2 : 2;
- B = s->current_picture.motion_val[0][xy - wrap*2 + off];
-
- if(!s->mb_x) C[0] = C[1] = 0;
- if(!s->first_slice_line) { // predictor A is not out of bounds
- if(s->mb_width == 1) {
- px = A[0];
- py = A[1];
- } else {
- px = mid_pred(A[0], B[0], C[0]);
- py = mid_pred(A[1], B[1], C[1]);
- }
- } else if(s->mb_x) { // predictor C is not out of bounds
- px = C[0];
- py = C[1];
- } else {
- px = py = 0;
- }
- /* Pullback MV as specified in 8.3.5.3.4 */
- {
- int qx, qy, X, Y;
- if(v->profile < PROFILE_ADVANCED) {
- qx = (s->mb_x << 5);
- qy = (s->mb_y << 5);
- X = (s->mb_width << 5) - 4;
- Y = (s->mb_height << 5) - 4;
- if(qx + px < -28) px = -28 - qx;
- if(qy + py < -28) py = -28 - qy;
- if(qx + px > X) px = X - qx;
- if(qy + py > Y) py = Y - qy;
- } else {
- qx = (s->mb_x << 6);
- qy = (s->mb_y << 6);
- X = (s->mb_width << 6) - 4;
- Y = (s->mb_height << 6) - 4;
- if(qx + px < -60) px = -60 - qx;
- if(qy + py < -60) py = -60 - qy;
- if(qx + px > X) px = X - qx;
- if(qy + py > Y) py = Y - qy;
- }
- }
- /* Calculate hybrid prediction as specified in 8.3.5.3.5 */
- if(0 && !s->first_slice_line && s->mb_x) {
- if(is_intra[xy - wrap])
- sum = FFABS(px) + FFABS(py);
- else
- sum = FFABS(px - A[0]) + FFABS(py - A[1]);
- if(sum > 32) {
- if(get_bits1(&s->gb)) {
- px = A[0];
- py = A[1];
- } else {
- px = C[0];
- py = C[1];
- }
- } else {
- if(is_intra[xy - 2])
- sum = FFABS(px) + FFABS(py);
- else
- sum = FFABS(px - C[0]) + FFABS(py - C[1]);
- if(sum > 32) {
- if(get_bits1(&s->gb)) {
- px = A[0];
- py = A[1];
- } else {
- px = C[0];
- py = C[1];
- }
- }
- }
- }
- /* store MV using signed modulus of MV range defined in 4.11 */
- s->mv[0][0][0] = ((px + dmv_x[0] + r_x) & ((r_x << 1) - 1)) - r_x;
- s->mv[0][0][1] = ((py + dmv_y[0] + r_y) & ((r_y << 1) - 1)) - r_y;
- }
- if((mvtype == BMV_TYPE_BACKWARD) || (mvtype == BMV_TYPE_INTERPOLATED)) {
- C = s->current_picture.motion_val[1][xy - 2];
- A = s->current_picture.motion_val[1][xy - wrap*2];
- off = (s->mb_x == (s->mb_width - 1)) ? -2 : 2;
- B = s->current_picture.motion_val[1][xy - wrap*2 + off];
-
- if(!s->mb_x) C[0] = C[1] = 0;
- if(!s->first_slice_line) { // predictor A is not out of bounds
- if(s->mb_width == 1) {
- px = A[0];
- py = A[1];
- } else {
- px = mid_pred(A[0], B[0], C[0]);
- py = mid_pred(A[1], B[1], C[1]);
- }
- } else if(s->mb_x) { // predictor C is not out of bounds
- px = C[0];
- py = C[1];
- } else {
- px = py = 0;
- }
- /* Pullback MV as specified in 8.3.5.3.4 */
- {
- int qx, qy, X, Y;
- if(v->profile < PROFILE_ADVANCED) {
- qx = (s->mb_x << 5);
- qy = (s->mb_y << 5);
- X = (s->mb_width << 5) - 4;
- Y = (s->mb_height << 5) - 4;
- if(qx + px < -28) px = -28 - qx;
- if(qy + py < -28) py = -28 - qy;
- if(qx + px > X) px = X - qx;
- if(qy + py > Y) py = Y - qy;
- } else {
- qx = (s->mb_x << 6);
- qy = (s->mb_y << 6);
- X = (s->mb_width << 6) - 4;
- Y = (s->mb_height << 6) - 4;
- if(qx + px < -60) px = -60 - qx;
- if(qy + py < -60) py = -60 - qy;
- if(qx + px > X) px = X - qx;
- if(qy + py > Y) py = Y - qy;
- }
- }
- /* Calculate hybrid prediction as specified in 8.3.5.3.5 */
- if(0 && !s->first_slice_line && s->mb_x) {
- if(is_intra[xy - wrap])
- sum = FFABS(px) + FFABS(py);
- else
- sum = FFABS(px - A[0]) + FFABS(py - A[1]);
- if(sum > 32) {
- if(get_bits1(&s->gb)) {
- px = A[0];
- py = A[1];
- } else {
- px = C[0];
- py = C[1];
- }
- } else {
- if(is_intra[xy - 2])
- sum = FFABS(px) + FFABS(py);
- else
- sum = FFABS(px - C[0]) + FFABS(py - C[1]);
- if(sum > 32) {
- if(get_bits1(&s->gb)) {
- px = A[0];
- py = A[1];
- } else {
- px = C[0];
- py = C[1];
- }
- }
- }
- }
- /* store MV using signed modulus of MV range defined in 4.11 */
-
- s->mv[1][0][0] = ((px + dmv_x[1] + r_x) & ((r_x << 1) - 1)) - r_x;
- s->mv[1][0][1] = ((py + dmv_y[1] + r_y) & ((r_y << 1) - 1)) - r_y;
- }
- s->current_picture.motion_val[0][xy][0] = s->mv[0][0][0];
- s->current_picture.motion_val[0][xy][1] = s->mv[0][0][1];
- s->current_picture.motion_val[1][xy][0] = s->mv[1][0][0];
- s->current_picture.motion_val[1][xy][1] = s->mv[1][0][1];
-}
-
-/** Get predicted DC value for I-frames only
- * prediction dir: left=0, top=1
- * @param s MpegEncContext
- * @param overlap flag indicating that overlap filtering is used
- * @param pq integer part of picture quantizer
- * @param[in] n block index in the current MB
- * @param dc_val_ptr Pointer to DC predictor
- * @param dir_ptr Prediction direction for use in AC prediction
- */
-static inline int vc1_i_pred_dc(MpegEncContext *s, int overlap, int pq, int n,
- int16_t **dc_val_ptr, int *dir_ptr)
-{
- int a, b, c, wrap, pred, scale;
- int16_t *dc_val;
- static const uint16_t dcpred[32] = {
- -1, 1024, 512, 341, 256, 205, 171, 146, 128,
- 114, 102, 93, 85, 79, 73, 68, 64,
- 60, 57, 54, 51, 49, 47, 45, 43,
- 41, 39, 38, 37, 35, 34, 33
- };
-
- /* find prediction - wmv3_dc_scale always used here in fact */
- if (n < 4) scale = s->y_dc_scale;
- else scale = s->c_dc_scale;
-
- wrap = s->block_wrap[n];
- dc_val= s->dc_val[0] + s->block_index[n];
-
- /* B A
- * C X
- */
- c = dc_val[ - 1];
- b = dc_val[ - 1 - wrap];
- a = dc_val[ - wrap];
-
- if (pq < 9 || !overlap)
- {
- /* Set outer values */
- if (s->first_slice_line && (n!=2 && n!=3)) b=a=dcpred[scale];
- if (s->mb_x == 0 && (n!=1 && n!=3)) b=c=dcpred[scale];
- }
- else
- {
- /* Set outer values */
- if (s->first_slice_line && (n!=2 && n!=3)) b=a=0;
- if (s->mb_x == 0 && (n!=1 && n!=3)) b=c=0;
- }
-
- if (abs(a - b) <= abs(b - c)) {
- pred = c;
- *dir_ptr = 1;//left
- } else {
- pred = a;
- *dir_ptr = 0;//top
- }
-
- /* update predictor */
- *dc_val_ptr = &dc_val[0];
- return pred;
-}
-
-
-/** Get predicted DC value
- * prediction dir: left=0, top=1
- * @param s MpegEncContext
- * @param overlap flag indicating that overlap filtering is used
- * @param pq integer part of picture quantizer
- * @param[in] n block index in the current MB
- * @param a_avail flag indicating top block availability
- * @param c_avail flag indicating left block availability
- * @param dc_val_ptr Pointer to DC predictor
- * @param dir_ptr Prediction direction for use in AC prediction
- */
-static inline int vc1_pred_dc(MpegEncContext *s, int overlap, int pq, int n,
- int a_avail, int c_avail,
- int16_t **dc_val_ptr, int *dir_ptr)
-{
- int a, b, c, wrap, pred;
- int16_t *dc_val;
- int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
- int q1, q2 = 0;
-
- wrap = s->block_wrap[n];
- dc_val= s->dc_val[0] + s->block_index[n];
-
- /* B A
- * C X
- */
- c = dc_val[ - 1];
- b = dc_val[ - 1 - wrap];
- a = dc_val[ - wrap];
- /* scale predictors if needed */
- q1 = s->current_picture.qscale_table[mb_pos];
- if(c_avail && (n!= 1 && n!=3)) {
- q2 = s->current_picture.qscale_table[mb_pos - 1];
- if(q2 && q2 != q1)
- c = (c * s->y_dc_scale_table[q2] * ff_vc1_dqscale[s->y_dc_scale_table[q1] - 1] + 0x20000) >> 18;
- }
- if(a_avail && (n!= 2 && n!=3)) {
- q2 = s->current_picture.qscale_table[mb_pos - s->mb_stride];
- if(q2 && q2 != q1)
- a = (a * s->y_dc_scale_table[q2] * ff_vc1_dqscale[s->y_dc_scale_table[q1] - 1] + 0x20000) >> 18;
- }
- if(a_avail && c_avail && (n!=3)) {
- int off = mb_pos;
- if(n != 1) off--;
- if(n != 2) off -= s->mb_stride;
- q2 = s->current_picture.qscale_table[off];
- if(q2 && q2 != q1)
- b = (b * s->y_dc_scale_table[q2] * ff_vc1_dqscale[s->y_dc_scale_table[q1] - 1] + 0x20000) >> 18;
- }
-
- if(a_avail && c_avail) {
- if(abs(a - b) <= abs(b - c)) {
- pred = c;
- *dir_ptr = 1;//left
- } else {
- pred = a;
- *dir_ptr = 0;//top
- }
- } else if(a_avail) {
- pred = a;
- *dir_ptr = 0;//top
- } else if(c_avail) {
- pred = c;
- *dir_ptr = 1;//left
- } else {
- pred = 0;
- *dir_ptr = 1;//left
- }
-
- /* update predictor */
- *dc_val_ptr = &dc_val[0];
- return pred;
-}
-
-/** @} */ // Block group
-
-/**
- * @defgroup vc1_std_mb VC1 Macroblock-level functions in Simple/Main Profiles
- * @see 7.1.4, p91 and 8.1.1.7, p(1)04
- * @{
- */
-
-static inline int vc1_coded_block_pred(MpegEncContext * s, int n, uint8_t **coded_block_ptr)
-{
- int xy, wrap, pred, a, b, c;
-
- xy = s->block_index[n];
- wrap = s->b8_stride;
-
- /* B C
- * A X
- */
- a = s->coded_block[xy - 1 ];
- b = s->coded_block[xy - 1 - wrap];
- c = s->coded_block[xy - wrap];
-
- if (b == c) {
- pred = a;
- } else {
- pred = c;
- }
-
- /* store value */
- *coded_block_ptr = &s->coded_block[xy];
-
- return pred;
-}
-
-/**
- * Decode one AC coefficient
- * @param v The VC1 context
- * @param last Last coefficient
- * @param skip How much zero coefficients to skip
- * @param value Decoded AC coefficient value
- * @param codingset set of VLC to decode data
- * @see 8.1.3.4
- */
-static void vc1_decode_ac_coeff(VC1Context *v, int *last, int *skip, int *value, int codingset)
-{
- GetBitContext *gb = &v->s.gb;
- int index, escape, run = 0, level = 0, lst = 0;
-
- index = get_vlc2(gb, ff_vc1_ac_coeff_table[codingset].table, AC_VLC_BITS, 3);
- if (index != vc1_ac_sizes[codingset] - 1) {
- run = vc1_index_decode_table[codingset][index][0];
- level = vc1_index_decode_table[codingset][index][1];
- lst = index >= vc1_last_decode_table[codingset];
- if(get_bits1(gb))
- level = -level;
- } else {
- escape = decode210(gb);
- if (escape != 2) {
- index = get_vlc2(gb, ff_vc1_ac_coeff_table[codingset].table, AC_VLC_BITS, 3);
- run = vc1_index_decode_table[codingset][index][0];
- level = vc1_index_decode_table[codingset][index][1];
- lst = index >= vc1_last_decode_table[codingset];
- if(escape == 0) {
- if(lst)
- level += vc1_last_delta_level_table[codingset][run];
- else
- level += vc1_delta_level_table[codingset][run];
- } else {
- if(lst)
- run += vc1_last_delta_run_table[codingset][level] + 1;
- else
- run += vc1_delta_run_table[codingset][level] + 1;
- }
- if(get_bits1(gb))
- level = -level;
- } else {
- int sign;
- lst = get_bits1(gb);
- if(v->s.esc3_level_length == 0) {
- if(v->pq < 8 || v->dquantfrm) { // table 59
- v->s.esc3_level_length = get_bits(gb, 3);
- if(!v->s.esc3_level_length)
- v->s.esc3_level_length = get_bits(gb, 2) + 8;
- } else { //table 60
- v->s.esc3_level_length = get_unary(gb, 1, 6) + 2;
- }
- v->s.esc3_run_length = 3 + get_bits(gb, 2);
- }
- run = get_bits(gb, v->s.esc3_run_length);
- sign = get_bits1(gb);
- level = get_bits(gb, v->s.esc3_level_length);
- if(sign)
- level = -level;
- }
- }
-
- *last = lst;
- *skip = run;
- *value = level;
-}
-
-/** Decode intra block in intra frames - should be faster than decode_intra_block
- * @param v VC1Context
- * @param block block to decode
- * @param[in] n subblock index
- * @param coded are AC coeffs present or not
- * @param codingset set of VLC to decode data
- */
-static int vc1_decode_i_block(VC1Context *v, DCTELEM block[64], int n, int coded, int codingset)
-{
- GetBitContext *gb = &v->s.gb;
- MpegEncContext *s = &v->s;
- int dc_pred_dir = 0; /* Direction of the DC prediction used */
- int i;
- int16_t *dc_val;
- int16_t *ac_val, *ac_val2;
- int dcdiff;
-
- /* Get DC differential */
- if (n < 4) {
- dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_luma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
- } else {
- dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_chroma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
- }
- if (dcdiff < 0){
- av_log(s->avctx, AV_LOG_ERROR, "Illegal DC VLC\n");
- return -1;
- }
- if (dcdiff)
- {
- if (dcdiff == 119 /* ESC index value */)
- {
- /* TODO: Optimize */
- if (v->pq == 1) dcdiff = get_bits(gb, 10);
- else if (v->pq == 2) dcdiff = get_bits(gb, 9);
- else dcdiff = get_bits(gb, 8);
- }
- else
- {
- if (v->pq == 1)
- dcdiff = (dcdiff<<2) + get_bits(gb, 2) - 3;
- else if (v->pq == 2)
- dcdiff = (dcdiff<<1) + get_bits1(gb) - 1;
- }
- if (get_bits1(gb))
- dcdiff = -dcdiff;
- }
-
- /* Prediction */
- dcdiff += vc1_i_pred_dc(&v->s, v->overlap, v->pq, n, &dc_val, &dc_pred_dir);
- *dc_val = dcdiff;
-
- /* Store the quantized DC coeff, used for prediction */
- if (n < 4) {
- block[0] = dcdiff * s->y_dc_scale;
- } else {
- block[0] = dcdiff * s->c_dc_scale;
- }
- /* Skip ? */
- if (!coded) {
- goto not_coded;
- }
-
- //AC Decoding
- i = 1;
-
- {
- int last = 0, skip, value;
- const int8_t *zz_table;
- int scale;
- int k;
-
- scale = v->pq * 2 + v->halfpq;
-
- if(v->s.ac_pred) {
- if(!dc_pred_dir)
- zz_table = wmv1_scantable[2];
- else
- zz_table = wmv1_scantable[3];
- } else
- zz_table = wmv1_scantable[1];
-
- ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
- ac_val2 = ac_val;
- if(dc_pred_dir) //left
- ac_val -= 16;
- else //top
- ac_val -= 16 * s->block_wrap[n];
-
- while (!last) {
- vc1_decode_ac_coeff(v, &last, &skip, &value, codingset);
- i += skip;
- if(i > 63)
- break;
- block[zz_table[i++]] = value;
- }
-
- /* apply AC prediction if needed */
- if(s->ac_pred) {
- if(dc_pred_dir) { //left
- for(k = 1; k < 8; k++)
- block[k << 3] += ac_val[k];
- } else { //top
- for(k = 1; k < 8; k++)
- block[k] += ac_val[k + 8];
- }
- }
- /* save AC coeffs for further prediction */
- for(k = 1; k < 8; k++) {
- ac_val2[k] = block[k << 3];
- ac_val2[k + 8] = block[k];
- }
-
- /* scale AC coeffs */
- for(k = 1; k < 64; k++)
- if(block[k]) {
- block[k] *= scale;
- if(!v->pquantizer)
- block[k] += (block[k] < 0) ? -v->pq : v->pq;
- }
-
- if(s->ac_pred) i = 63;
- }
-
-not_coded:
- if(!coded) {
- int k, scale;
- ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
- ac_val2 = ac_val;
-
- i = 0;
- scale = v->pq * 2 + v->halfpq;
- memset(ac_val2, 0, 16 * 2);
- if(dc_pred_dir) {//left
- ac_val -= 16;
- if(s->ac_pred)
- memcpy(ac_val2, ac_val, 8 * 2);
- } else {//top
- ac_val -= 16 * s->block_wrap[n];
- if(s->ac_pred)
- memcpy(ac_val2 + 8, ac_val + 8, 8 * 2);
- }
-
- /* apply AC prediction if needed */
- if(s->ac_pred) {
- if(dc_pred_dir) { //left
- for(k = 1; k < 8; k++) {
- block[k << 3] = ac_val[k] * scale;
- if(!v->pquantizer && block[k << 3])
- block[k << 3] += (block[k << 3] < 0) ? -v->pq : v->pq;
- }
- } else { //top
- for(k = 1; k < 8; k++) {
- block[k] = ac_val[k + 8] * scale;
- if(!v->pquantizer && block[k])
- block[k] += (block[k] < 0) ? -v->pq : v->pq;
- }
- }
- i = 63;
- }
- }
- s->block_last_index[n] = i;
-
- return 0;
-}
-
-/** Decode intra block in intra frames - should be faster than decode_intra_block
- * @param v VC1Context
- * @param block block to decode
- * @param[in] n subblock number
- * @param coded are AC coeffs present or not
- * @param codingset set of VLC to decode data
- * @param mquant quantizer value for this macroblock
- */
-static int vc1_decode_i_block_adv(VC1Context *v, DCTELEM block[64], int n, int coded, int codingset, int mquant)
-{
- GetBitContext *gb = &v->s.gb;
- MpegEncContext *s = &v->s;
- int dc_pred_dir = 0; /* Direction of the DC prediction used */
- int i;
- int16_t *dc_val;
- int16_t *ac_val, *ac_val2;
- int dcdiff;
- int a_avail = v->a_avail, c_avail = v->c_avail;
- int use_pred = s->ac_pred;
- int scale;
- int q1, q2 = 0;
- int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
-
- /* Get DC differential */
- if (n < 4) {
- dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_luma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
- } else {
- dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_chroma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
- }
- if (dcdiff < 0){
- av_log(s->avctx, AV_LOG_ERROR, "Illegal DC VLC\n");
- return -1;
- }
- if (dcdiff)
- {
- if (dcdiff == 119 /* ESC index value */)
- {
- /* TODO: Optimize */
- if (mquant == 1) dcdiff = get_bits(gb, 10);
- else if (mquant == 2) dcdiff = get_bits(gb, 9);
- else dcdiff = get_bits(gb, 8);
- }
- else
- {
- if (mquant == 1)
- dcdiff = (dcdiff<<2) + get_bits(gb, 2) - 3;
- else if (mquant == 2)
- dcdiff = (dcdiff<<1) + get_bits1(gb) - 1;
- }
- if (get_bits1(gb))
- dcdiff = -dcdiff;
- }
-
- /* Prediction */
- dcdiff += vc1_pred_dc(&v->s, v->overlap, mquant, n, v->a_avail, v->c_avail, &dc_val, &dc_pred_dir);
- *dc_val = dcdiff;
-
- /* Store the quantized DC coeff, used for prediction */
- if (n < 4) {
- block[0] = dcdiff * s->y_dc_scale;
- } else {
- block[0] = dcdiff * s->c_dc_scale;
- }
-
- //AC Decoding
- i = 1;
-
- /* check if AC is needed at all */
- if(!a_avail && !c_avail) use_pred = 0;
- ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
- ac_val2 = ac_val;
-
- scale = mquant * 2 + ((mquant == v->pq) ? v->halfpq : 0);
-
- if(dc_pred_dir) //left
- ac_val -= 16;
- else //top
- ac_val -= 16 * s->block_wrap[n];
-
- q1 = s->current_picture.qscale_table[mb_pos];
- if(dc_pred_dir && c_avail && mb_pos) q2 = s->current_picture.qscale_table[mb_pos - 1];
- if(!dc_pred_dir && a_avail && mb_pos >= s->mb_stride) q2 = s->current_picture.qscale_table[mb_pos - s->mb_stride];
- if(dc_pred_dir && n==1) q2 = q1;
- if(!dc_pred_dir && n==2) q2 = q1;
- if(n==3) q2 = q1;
-
- if(coded) {
- int last = 0, skip, value;
- const int8_t *zz_table;
- int k;
-
- if(v->s.ac_pred) {
- if(!dc_pred_dir)
- zz_table = wmv1_scantable[2];
- else
- zz_table = wmv1_scantable[3];
- } else
- zz_table = wmv1_scantable[1];
-
- while (!last) {
- vc1_decode_ac_coeff(v, &last, &skip, &value, codingset);
- i += skip;
- if(i > 63)
- break;
- block[zz_table[i++]] = value;
- }
-
- /* apply AC prediction if needed */
- if(use_pred) {
- /* scale predictors if needed*/
- if(q2 && q1!=q2) {
- q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1;
- q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
-
- if(dc_pred_dir) { //left
- for(k = 1; k < 8; k++)
- block[k << 3] += (ac_val[k] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
- } else { //top
- for(k = 1; k < 8; k++)
- block[k] += (ac_val[k + 8] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
- }
- } else {
- if(dc_pred_dir) { //left
- for(k = 1; k < 8; k++)
- block[k << 3] += ac_val[k];
- } else { //top
- for(k = 1; k < 8; k++)
- block[k] += ac_val[k + 8];
- }
- }
- }
- /* save AC coeffs for further prediction */
- for(k = 1; k < 8; k++) {
- ac_val2[k] = block[k << 3];
- ac_val2[k + 8] = block[k];
- }
-
- /* scale AC coeffs */
- for(k = 1; k < 64; k++)
- if(block[k]) {
- block[k] *= scale;
- if(!v->pquantizer)
- block[k] += (block[k] < 0) ? -mquant : mquant;
- }
-
- if(use_pred) i = 63;
- } else { // no AC coeffs
- int k;
-
- memset(ac_val2, 0, 16 * 2);
- if(dc_pred_dir) {//left
- if(use_pred) {
- memcpy(ac_val2, ac_val, 8 * 2);
- if(q2 && q1!=q2) {
- q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1;
- q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
- for(k = 1; k < 8; k++)
- ac_val2[k] = (ac_val2[k] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
- }
- }
- } else {//top
- if(use_pred) {
- memcpy(ac_val2 + 8, ac_val + 8, 8 * 2);
- if(q2 && q1!=q2) {
- q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1;
- q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
- for(k = 1; k < 8; k++)
- ac_val2[k + 8] = (ac_val2[k + 8] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
- }
- }
- }
-
- /* apply AC prediction if needed */
- if(use_pred) {
- if(dc_pred_dir) { //left
- for(k = 1; k < 8; k++) {
- block[k << 3] = ac_val2[k] * scale;
- if(!v->pquantizer && block[k << 3])
- block[k << 3] += (block[k << 3] < 0) ? -mquant : mquant;
- }
- } else { //top
- for(k = 1; k < 8; k++) {
- block[k] = ac_val2[k + 8] * scale;
- if(!v->pquantizer && block[k])
- block[k] += (block[k] < 0) ? -mquant : mquant;
- }
- }
- i = 63;
- }
- }
- s->block_last_index[n] = i;
-
- return 0;
-}
-
-/** Decode intra block in inter frames - more generic version than vc1_decode_i_block
- * @param v VC1Context
- * @param block block to decode
- * @param[in] n subblock index
- * @param coded are AC coeffs present or not
- * @param mquant block quantizer
- * @param codingset set of VLC to decode data
- */
-static int vc1_decode_intra_block(VC1Context *v, DCTELEM block[64], int n, int coded, int mquant, int codingset)
-{
- GetBitContext *gb = &v->s.gb;
- MpegEncContext *s = &v->s;
- int dc_pred_dir = 0; /* Direction of the DC prediction used */
- int i;
- int16_t *dc_val;
- int16_t *ac_val, *ac_val2;
- int dcdiff;
- int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
- int a_avail = v->a_avail, c_avail = v->c_avail;
- int use_pred = s->ac_pred;
- int scale;
- int q1, q2 = 0;
-
- /* XXX: Guard against dumb values of mquant */
- mquant = (mquant < 1) ? 0 : ( (mquant>31) ? 31 : mquant );
-
- /* Set DC scale - y and c use the same */
- s->y_dc_scale = s->y_dc_scale_table[mquant];
- s->c_dc_scale = s->c_dc_scale_table[mquant];
-
- /* Get DC differential */
- if (n < 4) {
- dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_luma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
- } else {
- dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_chroma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3);
- }
- if (dcdiff < 0){
- av_log(s->avctx, AV_LOG_ERROR, "Illegal DC VLC\n");
- return -1;
- }
- if (dcdiff)
- {
- if (dcdiff == 119 /* ESC index value */)
- {
- /* TODO: Optimize */
- if (mquant == 1) dcdiff = get_bits(gb, 10);
- else if (mquant == 2) dcdiff = get_bits(gb, 9);
- else dcdiff = get_bits(gb, 8);
- }
- else
- {
- if (mquant == 1)
- dcdiff = (dcdiff<<2) + get_bits(gb, 2) - 3;
- else if (mquant == 2)
- dcdiff = (dcdiff<<1) + get_bits1(gb) - 1;
- }
- if (get_bits1(gb))
- dcdiff = -dcdiff;
- }
-
- /* Prediction */
- dcdiff += vc1_pred_dc(&v->s, v->overlap, mquant, n, a_avail, c_avail, &dc_val, &dc_pred_dir);
- *dc_val = dcdiff;
-
- /* Store the quantized DC coeff, used for prediction */
-
- if (n < 4) {
- block[0] = dcdiff * s->y_dc_scale;
- } else {
- block[0] = dcdiff * s->c_dc_scale;
- }
-
- //AC Decoding
- i = 1;
-
- /* check if AC is needed at all and adjust direction if needed */
- if(!a_avail) dc_pred_dir = 1;
- if(!c_avail) dc_pred_dir = 0;
- if(!a_avail && !c_avail) use_pred = 0;
- ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
- ac_val2 = ac_val;
-
- scale = mquant * 2 + v->halfpq;
-
- if(dc_pred_dir) //left
- ac_val -= 16;
- else //top
- ac_val -= 16 * s->block_wrap[n];
-
- q1 = s->current_picture.qscale_table[mb_pos];
- if(dc_pred_dir && c_avail && mb_pos) q2 = s->current_picture.qscale_table[mb_pos - 1];
- if(!dc_pred_dir && a_avail && mb_pos >= s->mb_stride) q2 = s->current_picture.qscale_table[mb_pos - s->mb_stride];
- if(dc_pred_dir && n==1) q2 = q1;
- if(!dc_pred_dir && n==2) q2 = q1;
- if(n==3) q2 = q1;
-
- if(coded) {
- int last = 0, skip, value;
- const int8_t *zz_table;
- int k;
-
- zz_table = wmv1_scantable[0];
-
- while (!last) {
- vc1_decode_ac_coeff(v, &last, &skip, &value, codingset);
- i += skip;
- if(i > 63)
- break;
- block[zz_table[i++]] = value;
- }
-
- /* apply AC prediction if needed */
- if(use_pred) {
- /* scale predictors if needed*/
- if(q2 && q1!=q2) {
- q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1;
- q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
-
- if(dc_pred_dir) { //left
- for(k = 1; k < 8; k++)
- block[k << 3] += (ac_val[k] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
- } else { //top
- for(k = 1; k < 8; k++)
- block[k] += (ac_val[k + 8] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
- }
- } else {
- if(dc_pred_dir) { //left
- for(k = 1; k < 8; k++)
- block[k << 3] += ac_val[k];
- } else { //top
- for(k = 1; k < 8; k++)
- block[k] += ac_val[k + 8];
- }
- }
- }
- /* save AC coeffs for further prediction */
- for(k = 1; k < 8; k++) {
- ac_val2[k] = block[k << 3];
- ac_val2[k + 8] = block[k];
- }
-
- /* scale AC coeffs */
- for(k = 1; k < 64; k++)
- if(block[k]) {
- block[k] *= scale;
- if(!v->pquantizer)
- block[k] += (block[k] < 0) ? -mquant : mquant;
- }
-
- if(use_pred) i = 63;
- } else { // no AC coeffs
- int k;
-
- memset(ac_val2, 0, 16 * 2);
- if(dc_pred_dir) {//left
- if(use_pred) {
- memcpy(ac_val2, ac_val, 8 * 2);
- if(q2 && q1!=q2) {
- q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1;
- q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
- for(k = 1; k < 8; k++)
- ac_val2[k] = (ac_val2[k] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
- }
- }
- } else {//top
- if(use_pred) {
- memcpy(ac_val2 + 8, ac_val + 8, 8 * 2);
- if(q2 && q1!=q2) {
- q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1;
- q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
- for(k = 1; k < 8; k++)
- ac_val2[k + 8] = (ac_val2[k + 8] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
- }
- }
- }
-
- /* apply AC prediction if needed */
- if(use_pred) {
- if(dc_pred_dir) { //left
- for(k = 1; k < 8; k++) {
- block[k << 3] = ac_val2[k] * scale;
- if(!v->pquantizer && block[k << 3])
- block[k << 3] += (block[k << 3] < 0) ? -mquant : mquant;
- }
- } else { //top
- for(k = 1; k < 8; k++) {
- block[k] = ac_val2[k + 8] * scale;
- if(!v->pquantizer && block[k])
- block[k] += (block[k] < 0) ? -mquant : mquant;
- }
- }
- i = 63;
- }
- }
- s->block_last_index[n] = i;
-
- return 0;
-}
-
-/** Decode P block
- */
-static int vc1_decode_p_block(VC1Context *v, DCTELEM block[64], int n, int mquant, int ttmb, int first_block,
- uint8_t *dst, int linesize, int skip_block, int apply_filter, int cbp_top, int cbp_left)
-{
- MpegEncContext *s = &v->s;
- GetBitContext *gb = &s->gb;
- int i, j;
- int subblkpat = 0;
- int scale, off, idx, last, skip, value;
- int ttblk = ttmb & 7;
- int pat = 0;
-
- if(ttmb == -1) {
- ttblk = ff_vc1_ttblk_to_tt[v->tt_index][get_vlc2(gb, ff_vc1_ttblk_vlc[v->tt_index].table, VC1_TTBLK_VLC_BITS, 1)];
- }
- if(ttblk == TT_4X4) {
- subblkpat = ~(get_vlc2(gb, ff_vc1_subblkpat_vlc[v->tt_index].table, VC1_SUBBLKPAT_VLC_BITS, 1) + 1);
- }
- if((ttblk != TT_8X8 && ttblk != TT_4X4) && (v->ttmbf || (ttmb != -1 && (ttmb & 8) && !first_block))) {
- subblkpat = decode012(gb);
- if(subblkpat) subblkpat ^= 3; //swap decoded pattern bits
- if(ttblk == TT_8X4_TOP || ttblk == TT_8X4_BOTTOM) ttblk = TT_8X4;
- if(ttblk == TT_4X8_RIGHT || ttblk == TT_4X8_LEFT) ttblk = TT_4X8;
- }
- scale = 2 * mquant + ((v->pq == mquant) ? v->halfpq : 0);
-
- // convert transforms like 8X4_TOP to generic TT and SUBBLKPAT
- if(ttblk == TT_8X4_TOP || ttblk == TT_8X4_BOTTOM) {
- subblkpat = 2 - (ttblk == TT_8X4_TOP);
- ttblk = TT_8X4;
- }
- if(ttblk == TT_4X8_RIGHT || ttblk == TT_4X8_LEFT) {
- subblkpat = 2 - (ttblk == TT_4X8_LEFT);
- ttblk = TT_4X8;
- }
- switch(ttblk) {
- case TT_8X8:
- pat = 0xF;
- i = 0;
- last = 0;
- while (!last) {
- vc1_decode_ac_coeff(v, &last, &skip, &value, v->codingset2);
- i += skip;
- if(i > 63)
- break;
- idx = wmv1_scantable[0][i++];
- block[idx] = value * scale;
- if(!v->pquantizer)
- block[idx] += (block[idx] < 0) ? -mquant : mquant;
- }
- if(!skip_block){
- s->dsp.vc1_inv_trans_8x8(block);
- s->dsp.add_pixels_clamped(block, dst, linesize);
- if(apply_filter && cbp_top & 0xC)
- s->dsp.vc1_v_loop_filter8(dst, linesize, v->pq);
- if(apply_filter && cbp_left & 0xA)
- s->dsp.vc1_h_loop_filter8(dst, linesize, v->pq);
- }
- break;
- case TT_4X4:
- pat = ~subblkpat & 0xF;
- for(j = 0; j < 4; j++) {
- last = subblkpat & (1 << (3 - j));
- i = 0;
- off = (j & 1) * 4 + (j & 2) * 16;
- while (!last) {
- vc1_decode_ac_coeff(v, &last, &skip, &value, v->codingset2);
- i += skip;
- if(i > 15)
- break;
- idx = ff_vc1_simple_progressive_4x4_zz[i++];
- block[idx + off] = value * scale;
- if(!v->pquantizer)
- block[idx + off] += (block[idx + off] < 0) ? -mquant : mquant;
- }
- if(!(subblkpat & (1 << (3 - j))) && !skip_block){
- s->dsp.vc1_inv_trans_4x4(dst + (j&1)*4 + (j&2)*2*linesize, linesize, block + off);
- if(apply_filter && (j&2 ? pat & (1<<(j-2)) : (cbp_top & (1 << (j + 2)))))
- s->dsp.vc1_v_loop_filter4(dst + (j&1)*4 + (j&2)*2*linesize, linesize, v->pq);
- if(apply_filter && (j&1 ? pat & (1<<(j-1)) : (cbp_left & (1 << (j + 1)))))
- s->dsp.vc1_h_loop_filter4(dst + (j&1)*4 + (j&2)*2*linesize, linesize, v->pq);
- }
- }
- break;
- case TT_8X4:
- pat = ~((subblkpat & 2)*6 + (subblkpat & 1)*3) & 0xF;
- for(j = 0; j < 2; j++) {
- last = subblkpat & (1 << (1 - j));
- i = 0;
- off = j * 32;
- while (!last) {
- vc1_decode_ac_coeff(v, &last, &skip, &value, v->codingset2);
- i += skip;
- if(i > 31)
- break;
- idx = v->zz_8x4[i++]+off;
- block[idx] = value * scale;
- if(!v->pquantizer)
- block[idx] += (block[idx] < 0) ? -mquant : mquant;
- }
- if(!(subblkpat & (1 << (1 - j))) && !skip_block){
- s->dsp.vc1_inv_trans_8x4(dst + j*4*linesize, linesize, block + off);
- if(apply_filter && j ? pat & 0x3 : (cbp_top & 0xC))
- s->dsp.vc1_v_loop_filter8(dst + j*4*linesize, linesize, v->pq);
- if(apply_filter && cbp_left & (2 << j))
- s->dsp.vc1_h_loop_filter4(dst + j*4*linesize, linesize, v->pq);
- }
- }
- break;
- case TT_4X8:
- pat = ~(subblkpat*5) & 0xF;
- for(j = 0; j < 2; j++) {
- last = subblkpat & (1 << (1 - j));
- i = 0;
- off = j * 4;
- while (!last) {
- vc1_decode_ac_coeff(v, &last, &skip, &value, v->codingset2);
- i += skip;
- if(i > 31)
- break;
- idx = v->zz_4x8[i++]+off;
- block[idx] = value * scale;
- if(!v->pquantizer)
- block[idx] += (block[idx] < 0) ? -mquant : mquant;
- }
- if(!(subblkpat & (1 << (1 - j))) && !skip_block){
- s->dsp.vc1_inv_trans_4x8(dst + j*4, linesize, block + off);
- if(apply_filter && cbp_top & (2 << j))
- s->dsp.vc1_v_loop_filter4(dst + j*4, linesize, v->pq);
- if(apply_filter && j ? pat & 0x5 : (cbp_left & 0xA))
- s->dsp.vc1_h_loop_filter8(dst + j*4, linesize, v->pq);
- }
- }
- break;
- }
- return pat;
-}
-
-/** @} */ // Macroblock group
-
-static const int size_table [6] = { 0, 2, 3, 4, 5, 8 };
-static const int offset_table[6] = { 0, 1, 3, 7, 15, 31 };
-
-/** Decode one P-frame MB (in Simple/Main profile)
- */
-static int vc1_decode_p_mb(VC1Context *v)
-{
- MpegEncContext *s = &v->s;
- GetBitContext *gb = &s->gb;
- int i, j;
- int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
- int cbp; /* cbp decoding stuff */
- int mqdiff, mquant; /* MB quantization */
- int ttmb = v->ttfrm; /* MB Transform type */
-
- int mb_has_coeffs = 1; /* last_flag */
- int dmv_x, dmv_y; /* Differential MV components */
- int index, index1; /* LUT indexes */
- int val, sign; /* temp values */
- int first_block = 1;
- int dst_idx, off;
- int skipped, fourmv;
- int block_cbp = 0, pat;
- int apply_loop_filter;
-
- mquant = v->pq; /* Loosy initialization */
-
- if (v->mv_type_is_raw)
- fourmv = get_bits1(gb);
- else
- fourmv = v->mv_type_mb_plane[mb_pos];
- if (v->skip_is_raw)
- skipped = get_bits1(gb);
- else
- skipped = v->s.mbskip_table[mb_pos];
-
- s->dsp.clear_blocks(s->block[0]);
-
- apply_loop_filter = s->loop_filter && !(s->avctx->skip_loop_filter >= AVDISCARD_NONKEY);
- if (!fourmv) /* 1MV mode */
- {
- if (!skipped)
- {
- GET_MVDATA(dmv_x, dmv_y);
-
- if (s->mb_intra) {
- s->current_picture.motion_val[1][s->block_index[0]][0] = 0;
- s->current_picture.motion_val[1][s->block_index[0]][1] = 0;
- }
- s->current_picture.mb_type[mb_pos] = s->mb_intra ? MB_TYPE_INTRA : MB_TYPE_16x16;
- vc1_pred_mv(s, 0, dmv_x, dmv_y, 1, v->range_x, v->range_y, v->mb_type[0]);
-
- /* FIXME Set DC val for inter block ? */
- if (s->mb_intra && !mb_has_coeffs)
- {
- GET_MQUANT();
- s->ac_pred = get_bits1(gb);
- cbp = 0;
- }
- else if (mb_has_coeffs)
- {
- if (s->mb_intra) s->ac_pred = get_bits1(gb);
- cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2);
- GET_MQUANT();
- }
- else
- {
- mquant = v->pq;
- cbp = 0;
- }
- s->current_picture.qscale_table[mb_pos] = mquant;
-
- if (!v->ttmbf && !s->mb_intra && mb_has_coeffs)
- ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table,
- VC1_TTMB_VLC_BITS, 2);
- if(!s->mb_intra) vc1_mc_1mv(v, 0);
- dst_idx = 0;
- for (i=0; i<6; i++)
- {
- s->dc_val[0][s->block_index[i]] = 0;
- dst_idx += i >> 2;
- val = ((cbp >> (5 - i)) & 1);
- off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize);
- v->mb_type[0][s->block_index[i]] = s->mb_intra;
- if(s->mb_intra) {
- /* check if prediction blocks A and C are available */
- v->a_avail = v->c_avail = 0;
- if(i == 2 || i == 3 || !s->first_slice_line)
- v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]];
- if(i == 1 || i == 3 || s->mb_x)
- v->c_avail = v->mb_type[0][s->block_index[i] - 1];
-
- vc1_decode_intra_block(v, s->block[i], i, val, mquant, (i&4)?v->codingset2:v->codingset);
- if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
- s->dsp.vc1_inv_trans_8x8(s->block[i]);
- if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
- s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
- if(v->pq >= 9 && v->overlap) {
- if(v->c_avail)
- s->dsp.vc1_h_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
- if(v->a_avail)
- s->dsp.vc1_v_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
- }
- if(apply_loop_filter && s->mb_x && s->mb_x != (s->mb_width - 1) && s->mb_y && s->mb_y != (s->mb_height - 1)){
- int left_cbp, top_cbp;
- if(i & 4){
- left_cbp = v->cbp[s->mb_x - 1] >> (i * 4);
- top_cbp = v->cbp[s->mb_x - s->mb_stride] >> (i * 4);
- }else{
- left_cbp = (i & 1) ? (cbp >> ((i-1)*4)) : (v->cbp[s->mb_x - 1] >> ((i+1)*4));
- top_cbp = (i & 2) ? (cbp >> ((i-2)*4)) : (v->cbp[s->mb_x - s->mb_stride] >> ((i+2)*4));
- }
- if(left_cbp & 0xC)
- s->dsp.vc1_v_loop_filter8(s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize, v->pq);
- if(top_cbp & 0xA)
- s->dsp.vc1_h_loop_filter8(s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize, v->pq);
- }
- block_cbp |= 0xF << (i << 2);
- } else if(val) {
- int left_cbp = 0, top_cbp = 0, filter = 0;
- if(apply_loop_filter && s->mb_x && s->mb_x != (s->mb_width - 1) && s->mb_y && s->mb_y != (s->mb_height - 1)){
- filter = 1;
- if(i & 4){
- left_cbp = v->cbp[s->mb_x - 1] >> (i * 4);
- top_cbp = v->cbp[s->mb_x - s->mb_stride] >> (i * 4);
- }else{
- left_cbp = (i & 1) ? (cbp >> ((i-1)*4)) : (v->cbp[s->mb_x - 1] >> ((i+1)*4));
- top_cbp = (i & 2) ? (cbp >> ((i-2)*4)) : (v->cbp[s->mb_x - s->mb_stride] >> ((i+2)*4));
- }
- if(left_cbp & 0xC)
- s->dsp.vc1_v_loop_filter8(s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize, v->pq);
- if(top_cbp & 0xA)
- s->dsp.vc1_h_loop_filter8(s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize, v->pq);
- }
- pat = vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block, s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize, (i&4) && (s->flags & CODEC_FLAG_GRAY), filter, left_cbp, top_cbp);
- block_cbp |= pat << (i << 2);
- if(!v->ttmbf && ttmb < 8) ttmb = -1;
- first_block = 0;
- }
- }
- }
- else //Skipped
- {
- s->mb_intra = 0;
- for(i = 0; i < 6; i++) {
- v->mb_type[0][s->block_index[i]] = 0;
- s->dc_val[0][s->block_index[i]] = 0;
- }
- s->current_picture.mb_type[mb_pos] = MB_TYPE_SKIP;
- s->current_picture.qscale_table[mb_pos] = 0;
- vc1_pred_mv(s, 0, 0, 0, 1, v->range_x, v->range_y, v->mb_type[0]);
- vc1_mc_1mv(v, 0);
- return 0;
- }
- } //1MV mode
- else //4MV mode
- {
- if (!skipped /* unskipped MB */)
- {
- int intra_count = 0, coded_inter = 0;
- int is_intra[6], is_coded[6];
- /* Get CBPCY */
- cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2);
- for (i=0; i<6; i++)
- {
- val = ((cbp >> (5 - i)) & 1);
- s->dc_val[0][s->block_index[i]] = 0;
- s->mb_intra = 0;
- if(i < 4) {
- dmv_x = dmv_y = 0;
- s->mb_intra = 0;
- mb_has_coeffs = 0;
- if(val) {
- GET_MVDATA(dmv_x, dmv_y);
- }
- vc1_pred_mv(s, i, dmv_x, dmv_y, 0, v->range_x, v->range_y, v->mb_type[0]);
- if(!s->mb_intra) vc1_mc_4mv_luma(v, i);
- intra_count += s->mb_intra;
- is_intra[i] = s->mb_intra;
- is_coded[i] = mb_has_coeffs;
- }
- if(i&4){
- is_intra[i] = (intra_count >= 3);
- is_coded[i] = val;
- }
- if(i == 4) vc1_mc_4mv_chroma(v);
- v->mb_type[0][s->block_index[i]] = is_intra[i];
- if(!coded_inter) coded_inter = !is_intra[i] & is_coded[i];
- }
- // if there are no coded blocks then don't do anything more
- if(!intra_count && !coded_inter) return 0;
- dst_idx = 0;
- GET_MQUANT();
- s->current_picture.qscale_table[mb_pos] = mquant;
- /* test if block is intra and has pred */
- {
- int intrapred = 0;
- for(i=0; i<6; i++)
- if(is_intra[i]) {
- if(((!s->first_slice_line || (i==2 || i==3)) && v->mb_type[0][s->block_index[i] - s->block_wrap[i]])
- || ((s->mb_x || (i==1 || i==3)) && v->mb_type[0][s->block_index[i] - 1])) {
- intrapred = 1;
- break;
- }
- }
- if(intrapred)s->ac_pred = get_bits1(gb);
- else s->ac_pred = 0;
- }
- if (!v->ttmbf && coded_inter)
- ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2);
- for (i=0; i<6; i++)
- {
- dst_idx += i >> 2;
- off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize);
- s->mb_intra = is_intra[i];
- if (is_intra[i]) {
- /* check if prediction blocks A and C are available */
- v->a_avail = v->c_avail = 0;
- if(i == 2 || i == 3 || !s->first_slice_line)
- v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]];
- if(i == 1 || i == 3 || s->mb_x)
- v->c_avail = v->mb_type[0][s->block_index[i] - 1];
-
- vc1_decode_intra_block(v, s->block[i], i, is_coded[i], mquant, (i&4)?v->codingset2:v->codingset);
- if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
- s->dsp.vc1_inv_trans_8x8(s->block[i]);
- if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
- s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize);
- if(v->pq >= 9 && v->overlap) {
- if(v->c_avail)
- s->dsp.vc1_h_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
- if(v->a_avail)
- s->dsp.vc1_v_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
- }
- if(v->s.loop_filter && s->mb_x && s->mb_x != (s->mb_width - 1) && s->mb_y && s->mb_y != (s->mb_height - 1)){
- int left_cbp, top_cbp;
- if(i & 4){
- left_cbp = v->cbp[s->mb_x - 1] >> (i * 4);
- top_cbp = v->cbp[s->mb_x - s->mb_stride] >> (i * 4);
- }else{
- left_cbp = (i & 1) ? (cbp >> ((i-1)*4)) : (v->cbp[s->mb_x - 1] >> ((i+1)*4));
- top_cbp = (i & 2) ? (cbp >> ((i-2)*4)) : (v->cbp[s->mb_x - s->mb_stride] >> ((i+2)*4));
- }
- if(left_cbp & 0xC)
- s->dsp.vc1_v_loop_filter8(s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize, v->pq);
- if(top_cbp & 0xA)
- s->dsp.vc1_h_loop_filter8(s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize, v->pq);
- }
- block_cbp |= 0xF << (i << 2);
- } else if(is_coded[i]) {
- int left_cbp = 0, top_cbp = 0, filter = 0;
- if(v->s.loop_filter && s->mb_x && s->mb_x != (s->mb_width - 1) && s->mb_y && s->mb_y != (s->mb_height - 1)){
- filter = 1;
- if(i & 4){
- left_cbp = v->cbp[s->mb_x - 1] >> (i * 4);
- top_cbp = v->cbp[s->mb_x - s->mb_stride] >> (i * 4);
- }else{
- left_cbp = (i & 1) ? (cbp >> ((i-1)*4)) : (v->cbp[s->mb_x - 1] >> ((i+1)*4));
- top_cbp = (i & 2) ? (cbp >> ((i-2)*4)) : (v->cbp[s->mb_x - s->mb_stride] >> ((i+2)*4));
- }
- if(left_cbp & 0xC)
- s->dsp.vc1_v_loop_filter8(s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize, v->pq);
- if(top_cbp & 0xA)
- s->dsp.vc1_h_loop_filter8(s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize, v->pq);
- }
- pat = vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block, s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize, (i&4) && (s->flags & CODEC_FLAG_GRAY), filter, left_cbp, top_cbp);
- block_cbp |= pat << (i << 2);
- if(!v->ttmbf && ttmb < 8) ttmb = -1;
- first_block = 0;
- }
- }
- return 0;
- }
- else //Skipped MB
- {
- s->mb_intra = 0;
- s->current_picture.qscale_table[mb_pos] = 0;
- for (i=0; i<6; i++) {
- v->mb_type[0][s->block_index[i]] = 0;
- s->dc_val[0][s->block_index[i]] = 0;
- }
- for (i=0; i<4; i++)
- {
- vc1_pred_mv(s, i, 0, 0, 0, v->range_x, v->range_y, v->mb_type[0]);
- vc1_mc_4mv_luma(v, i);
- }
- vc1_mc_4mv_chroma(v);
- s->current_picture.qscale_table[mb_pos] = 0;
- return 0;
- }
- }
- v->cbp[s->mb_x] = block_cbp;
-
- /* Should never happen */
- return -1;
-}
-
-/** Decode one B-frame MB (in Main profile)
- */
-static void vc1_decode_b_mb(VC1Context *v)
-{
- MpegEncContext *s = &v->s;
- GetBitContext *gb = &s->gb;
- int i, j;
- int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
- int cbp = 0; /* cbp decoding stuff */
- int mqdiff, mquant; /* MB quantization */
- int ttmb = v->ttfrm; /* MB Transform type */
- int mb_has_coeffs = 0; /* last_flag */
- int index, index1; /* LUT indexes */
- int val, sign; /* temp values */
- int first_block = 1;
- int dst_idx, off;
- int skipped, direct;
- int dmv_x[2], dmv_y[2];
- int bmvtype = BMV_TYPE_BACKWARD;
-
- mquant = v->pq; /* Loosy initialization */
- s->mb_intra = 0;
-
- if (v->dmb_is_raw)
- direct = get_bits1(gb);
- else
- direct = v->direct_mb_plane[mb_pos];
- if (v->skip_is_raw)
- skipped = get_bits1(gb);
- else
- skipped = v->s.mbskip_table[mb_pos];
-
- s->dsp.clear_blocks(s->block[0]);
- dmv_x[0] = dmv_x[1] = dmv_y[0] = dmv_y[1] = 0;
- for(i = 0; i < 6; i++) {
- v->mb_type[0][s->block_index[i]] = 0;
- s->dc_val[0][s->block_index[i]] = 0;
- }
- s->current_picture.qscale_table[mb_pos] = 0;
-
- if (!direct) {
- if (!skipped) {
- GET_MVDATA(dmv_x[0], dmv_y[0]);
- dmv_x[1] = dmv_x[0];
- dmv_y[1] = dmv_y[0];
- }
- if(skipped || !s->mb_intra) {
- bmvtype = decode012(gb);
- switch(bmvtype) {
- case 0:
- bmvtype = (v->bfraction >= (B_FRACTION_DEN/2)) ? BMV_TYPE_BACKWARD : BMV_TYPE_FORWARD;
- break;
- case 1:
- bmvtype = (v->bfraction >= (B_FRACTION_DEN/2)) ? BMV_TYPE_FORWARD : BMV_TYPE_BACKWARD;
- break;
- case 2:
- bmvtype = BMV_TYPE_INTERPOLATED;
- dmv_x[0] = dmv_y[0] = 0;
- }
- }
- }
- for(i = 0; i < 6; i++)
- v->mb_type[0][s->block_index[i]] = s->mb_intra;
-
- if (skipped) {
- if(direct) bmvtype = BMV_TYPE_INTERPOLATED;
- vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
- vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype);
- return;
- }
- if (direct) {
- cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2);
- GET_MQUANT();
- s->mb_intra = 0;
- s->current_picture.qscale_table[mb_pos] = mquant;
- if(!v->ttmbf)
- ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2);
- dmv_x[0] = dmv_y[0] = dmv_x[1] = dmv_y[1] = 0;
- vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
- vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype);
- } else {
- if(!mb_has_coeffs && !s->mb_intra) {
- /* no coded blocks - effectively skipped */
- vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
- vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype);
- return;
- }
- if(s->mb_intra && !mb_has_coeffs) {
- GET_MQUANT();
- s->current_picture.qscale_table[mb_pos] = mquant;
- s->ac_pred = get_bits1(gb);
- cbp = 0;
- vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
- } else {
- if(bmvtype == BMV_TYPE_INTERPOLATED) {
- GET_MVDATA(dmv_x[0], dmv_y[0]);
- if(!mb_has_coeffs) {
- /* interpolated skipped block */
- vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
- vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype);
- return;
- }
- }
- vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
- if(!s->mb_intra) {
- vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype);
- }
- if(s->mb_intra)
- s->ac_pred = get_bits1(gb);
- cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2);
- GET_MQUANT();
- s->current_picture.qscale_table[mb_pos] = mquant;
- if(!v->ttmbf && !s->mb_intra && mb_has_coeffs)
- ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2);
- }
- }
- dst_idx = 0;
- for (i=0; i<6; i++)
- {
- s->dc_val[0][s->block_index[i]] = 0;
- dst_idx += i >> 2;
- val = ((cbp >> (5 - i)) & 1);
- off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize);
- v->mb_type[0][s->block_index[i]] = s->mb_intra;
- if(s->mb_intra) {
- /* check if prediction blocks A and C are available */
- v->a_avail = v->c_avail = 0;
- if(i == 2 || i == 3 || !s->first_slice_line)
- v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]];
- if(i == 1 || i == 3 || s->mb_x)
- v->c_avail = v->mb_type[0][s->block_index[i] - 1];
-
- vc1_decode_intra_block(v, s->block[i], i, val, mquant, (i&4)?v->codingset2:v->codingset);
- if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
- s->dsp.vc1_inv_trans_8x8(s->block[i]);
- if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
- s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
- } else if(val) {
- vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block, s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize, (i&4) && (s->flags & CODEC_FLAG_GRAY), 0, 0, 0);
- if(!v->ttmbf && ttmb < 8) ttmb = -1;
- first_block = 0;
- }
- }
-}
-
-/** Decode blocks of I-frame
- */
-static void vc1_decode_i_blocks(VC1Context *v)
-{
- int k, j;
- MpegEncContext *s = &v->s;
- int cbp, val;
- uint8_t *coded_val;
- int mb_pos;
-
- /* select codingmode used for VLC tables selection */
- switch(v->y_ac_table_index){
- case 0:
- v->codingset = (v->pqindex <= 8) ? CS_HIGH_RATE_INTRA : CS_LOW_MOT_INTRA;
- break;
- case 1:
- v->codingset = CS_HIGH_MOT_INTRA;
- break;
- case 2:
- v->codingset = CS_MID_RATE_INTRA;
- break;
- }
-
- switch(v->c_ac_table_index){
- case 0:
- v->codingset2 = (v->pqindex <= 8) ? CS_HIGH_RATE_INTER : CS_LOW_MOT_INTER;
- break;
- case 1:
- v->codingset2 = CS_HIGH_MOT_INTER;
- break;
- case 2:
- v->codingset2 = CS_MID_RATE_INTER;
- break;
- }
-
- /* Set DC scale - y and c use the same */
- s->y_dc_scale = s->y_dc_scale_table[v->pq];
- s->c_dc_scale = s->c_dc_scale_table[v->pq];
-
- //do frame decode
- s->mb_x = s->mb_y = 0;
- s->mb_intra = 1;
- s->first_slice_line = 1;
- for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) {
- for(s->mb_x = 0; s->mb_x < s->mb_width; s->mb_x++) {
- ff_init_block_index(s);
- ff_update_block_index(s);
- s->dsp.clear_blocks(s->block[0]);
- mb_pos = s->mb_x + s->mb_y * s->mb_width;
- s->current_picture.mb_type[mb_pos] = MB_TYPE_INTRA;
- s->current_picture.qscale_table[mb_pos] = v->pq;
- s->current_picture.motion_val[1][s->block_index[0]][0] = 0;
- s->current_picture.motion_val[1][s->block_index[0]][1] = 0;
-
- // do actual MB decoding and displaying
- cbp = get_vlc2(&v->s.gb, ff_msmp4_mb_i_vlc.table, MB_INTRA_VLC_BITS, 2);
- v->s.ac_pred = get_bits1(&v->s.gb);
-
- for(k = 0; k < 6; k++) {
- val = ((cbp >> (5 - k)) & 1);
-
- if (k < 4) {
- int pred = vc1_coded_block_pred(&v->s, k, &coded_val);
- val = val ^ pred;
- *coded_val = val;
- }
- cbp |= val << (5 - k);
-
- vc1_decode_i_block(v, s->block[k], k, val, (k<4)? v->codingset : v->codingset2);
-
- s->dsp.vc1_inv_trans_8x8(s->block[k]);
- if(v->pq >= 9 && v->overlap) {
- for(j = 0; j < 64; j++) s->block[k][j] += 128;
- }
- }
-
- vc1_put_block(v, s->block);
- if(v->pq >= 9 && v->overlap) {
- if(s->mb_x) {
- s->dsp.vc1_h_overlap(s->dest[0], s->linesize);
- s->dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize, s->linesize);
- if(!(s->flags & CODEC_FLAG_GRAY)) {
- s->dsp.vc1_h_overlap(s->dest[1], s->uvlinesize);
- s->dsp.vc1_h_overlap(s->dest[2], s->uvlinesize);
- }
- }
- s->dsp.vc1_h_overlap(s->dest[0] + 8, s->linesize);
- s->dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize);
- if(!s->first_slice_line) {
- s->dsp.vc1_v_overlap(s->dest[0], s->linesize);
- s->dsp.vc1_v_overlap(s->dest[0] + 8, s->linesize);
- if(!(s->flags & CODEC_FLAG_GRAY)) {
- s->dsp.vc1_v_overlap(s->dest[1], s->uvlinesize);
- s->dsp.vc1_v_overlap(s->dest[2], s->uvlinesize);
- }
- }
- s->dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize, s->linesize);
- s->dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize);
- }
- if(v->s.loop_filter) vc1_loop_filter_iblk(s, v->pq);
-
- if(get_bits_count(&s->gb) > v->bits) {
- ff_er_add_slice(s, 0, 0, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END));
- av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i\n", get_bits_count(&s->gb), v->bits);
- return;
- }
- }
- ff_draw_horiz_band(s, s->mb_y * 16, 16);
- s->first_slice_line = 0;
- }
- ff_er_add_slice(s, 0, 0, s->mb_width - 1, s->mb_height - 1, (AC_END|DC_END|MV_END));
-}
-
-/** Decode blocks of I-frame for advanced profile
- */
-static void vc1_decode_i_blocks_adv(VC1Context *v)
-{
- int k, j;
- MpegEncContext *s = &v->s;
- int cbp, val;
- uint8_t *coded_val;
- int mb_pos;
- int mquant = v->pq;
- int mqdiff;
- int overlap;
- GetBitContext *gb = &s->gb;
-
- /* select codingmode used for VLC tables selection */
- switch(v->y_ac_table_index){
- case 0:
- v->codingset = (v->pqindex <= 8) ? CS_HIGH_RATE_INTRA : CS_LOW_MOT_INTRA;
- break;
- case 1:
- v->codingset = CS_HIGH_MOT_INTRA;
- break;
- case 2:
- v->codingset = CS_MID_RATE_INTRA;
- break;
- }
-
- switch(v->c_ac_table_index){
- case 0:
- v->codingset2 = (v->pqindex <= 8) ? CS_HIGH_RATE_INTER : CS_LOW_MOT_INTER;
- break;
- case 1:
- v->codingset2 = CS_HIGH_MOT_INTER;
- break;
- case 2:
- v->codingset2 = CS_MID_RATE_INTER;
- break;
- }
-
- //do frame decode
- s->mb_x = s->mb_y = 0;
- s->mb_intra = 1;
- s->first_slice_line = 1;
- for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) {
- for(s->mb_x = 0; s->mb_x < s->mb_width; s->mb_x++) {
- ff_init_block_index(s);
- ff_update_block_index(s);
- s->dsp.clear_blocks(s->block[0]);
- mb_pos = s->mb_x + s->mb_y * s->mb_stride;
- s->current_picture.mb_type[mb_pos] = MB_TYPE_INTRA;
- s->current_picture.motion_val[1][s->block_index[0]][0] = 0;
- s->current_picture.motion_val[1][s->block_index[0]][1] = 0;
-
- // do actual MB decoding and displaying
- cbp = get_vlc2(&v->s.gb, ff_msmp4_mb_i_vlc.table, MB_INTRA_VLC_BITS, 2);
- if(v->acpred_is_raw)
- v->s.ac_pred = get_bits1(&v->s.gb);
- else
- v->s.ac_pred = v->acpred_plane[mb_pos];
-
- if(v->condover == CONDOVER_SELECT) {
- if(v->overflg_is_raw)
- overlap = get_bits1(&v->s.gb);
- else
- overlap = v->over_flags_plane[mb_pos];
- } else
- overlap = (v->condover == CONDOVER_ALL);
-
- GET_MQUANT();
-
- s->current_picture.qscale_table[mb_pos] = mquant;
- /* Set DC scale - y and c use the same */
- s->y_dc_scale = s->y_dc_scale_table[mquant];
- s->c_dc_scale = s->c_dc_scale_table[mquant];
-
- for(k = 0; k < 6; k++) {
- val = ((cbp >> (5 - k)) & 1);
-
- if (k < 4) {
- int pred = vc1_coded_block_pred(&v->s, k, &coded_val);
- val = val ^ pred;
- *coded_val = val;
- }
- cbp |= val << (5 - k);
-
- v->a_avail = !s->first_slice_line || (k==2 || k==3);
- v->c_avail = !!s->mb_x || (k==1 || k==3);
-
- vc1_decode_i_block_adv(v, s->block[k], k, val, (k<4)? v->codingset : v->codingset2, mquant);
-
- s->dsp.vc1_inv_trans_8x8(s->block[k]);
- for(j = 0; j < 64; j++) s->block[k][j] += 128;
- }
-
- vc1_put_block(v, s->block);
- if(overlap) {
- if(s->mb_x) {
- s->dsp.vc1_h_overlap(s->dest[0], s->linesize);
- s->dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize, s->linesize);
- if(!(s->flags & CODEC_FLAG_GRAY)) {
- s->dsp.vc1_h_overlap(s->dest[1], s->uvlinesize);
- s->dsp.vc1_h_overlap(s->dest[2], s->uvlinesize);
- }
- }
- s->dsp.vc1_h_overlap(s->dest[0] + 8, s->linesize);
- s->dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize);
- if(!s->first_slice_line) {
- s->dsp.vc1_v_overlap(s->dest[0], s->linesize);
- s->dsp.vc1_v_overlap(s->dest[0] + 8, s->linesize);
- if(!(s->flags & CODEC_FLAG_GRAY)) {
- s->dsp.vc1_v_overlap(s->dest[1], s->uvlinesize);
- s->dsp.vc1_v_overlap(s->dest[2], s->uvlinesize);
- }
- }
- s->dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize, s->linesize);
- s->dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize);
- }
- if(v->s.loop_filter) vc1_loop_filter_iblk(s, v->pq);
-
- if(get_bits_count(&s->gb) > v->bits) {
- ff_er_add_slice(s, 0, 0, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END));
- av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i\n", get_bits_count(&s->gb), v->bits);
- return;
- }
- }
- ff_draw_horiz_band(s, s->mb_y * 16, 16);
- s->first_slice_line = 0;
- }
- ff_er_add_slice(s, 0, 0, s->mb_width - 1, s->mb_height - 1, (AC_END|DC_END|MV_END));
-}
-
-static void vc1_decode_p_blocks(VC1Context *v)
-{
- MpegEncContext *s = &v->s;
-
- /* select codingmode used for VLC tables selection */
- switch(v->c_ac_table_index){
- case 0:
- v->codingset = (v->pqindex <= 8) ? CS_HIGH_RATE_INTRA : CS_LOW_MOT_INTRA;
- break;
- case 1:
- v->codingset = CS_HIGH_MOT_INTRA;
- break;
- case 2:
- v->codingset = CS_MID_RATE_INTRA;
- break;
- }
-
- switch(v->c_ac_table_index){
- case 0:
- v->codingset2 = (v->pqindex <= 8) ? CS_HIGH_RATE_INTER : CS_LOW_MOT_INTER;
- break;
- case 1:
- v->codingset2 = CS_HIGH_MOT_INTER;
- break;
- case 2:
- v->codingset2 = CS_MID_RATE_INTER;
- break;
- }
-
- s->first_slice_line = 1;
- memset(v->cbp_base, 0, sizeof(v->cbp_base[0])*2*s->mb_stride);
- for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) {
- for(s->mb_x = 0; s->mb_x < s->mb_width; s->mb_x++) {
- ff_init_block_index(s);
- ff_update_block_index(s);
- s->dsp.clear_blocks(s->block[0]);
-
- vc1_decode_p_mb(v);
- if(get_bits_count(&s->gb) > v->bits || get_bits_count(&s->gb) < 0) {
- ff_er_add_slice(s, 0, 0, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END));
- av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i at %ix%i\n", get_bits_count(&s->gb), v->bits,s->mb_x,s->mb_y);
- return;
- }
- }
- memmove(v->cbp_base, v->cbp, sizeof(v->cbp_base[0])*s->mb_stride);
- ff_draw_horiz_band(s, s->mb_y * 16, 16);
- s->first_slice_line = 0;
- }
- ff_er_add_slice(s, 0, 0, s->mb_width - 1, s->mb_height - 1, (AC_END|DC_END|MV_END));
-}
-
-static void vc1_decode_b_blocks(VC1Context *v)
-{
- MpegEncContext *s = &v->s;
-
- /* select codingmode used for VLC tables selection */
- switch(v->c_ac_table_index){
- case 0:
- v->codingset = (v->pqindex <= 8) ? CS_HIGH_RATE_INTRA : CS_LOW_MOT_INTRA;
- break;
- case 1:
- v->codingset = CS_HIGH_MOT_INTRA;
- break;
- case 2:
- v->codingset = CS_MID_RATE_INTRA;
- break;
- }
-
- switch(v->c_ac_table_index){
- case 0:
- v->codingset2 = (v->pqindex <= 8) ? CS_HIGH_RATE_INTER : CS_LOW_MOT_INTER;
- break;
- case 1:
- v->codingset2 = CS_HIGH_MOT_INTER;
- break;
- case 2:
- v->codingset2 = CS_MID_RATE_INTER;
- break;
- }
-
- s->first_slice_line = 1;
- for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) {
- for(s->mb_x = 0; s->mb_x < s->mb_width; s->mb_x++) {
- ff_init_block_index(s);
- ff_update_block_index(s);
- s->dsp.clear_blocks(s->block[0]);
-
- vc1_decode_b_mb(v);
- if(get_bits_count(&s->gb) > v->bits || get_bits_count(&s->gb) < 0) {
- ff_er_add_slice(s, 0, 0, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END));
- av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i at %ix%i\n", get_bits_count(&s->gb), v->bits,s->mb_x,s->mb_y);
- return;
- }
- if(v->s.loop_filter) vc1_loop_filter_iblk(s, v->pq);
- }
- ff_draw_horiz_band(s, s->mb_y * 16, 16);
- s->first_slice_line = 0;
- }
- ff_er_add_slice(s, 0, 0, s->mb_width - 1, s->mb_height - 1, (AC_END|DC_END|MV_END));
-}
-
-static void vc1_decode_skip_blocks(VC1Context *v)
-{
- MpegEncContext *s = &v->s;
-
- ff_er_add_slice(s, 0, 0, s->mb_width - 1, s->mb_height - 1, (AC_END|DC_END|MV_END));
- s->first_slice_line = 1;
- for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) {
- s->mb_x = 0;
- ff_init_block_index(s);
- ff_update_block_index(s);
- memcpy(s->dest[0], s->last_picture.data[0] + s->mb_y * 16 * s->linesize, s->linesize * 16);
- memcpy(s->dest[1], s->last_picture.data[1] + s->mb_y * 8 * s->uvlinesize, s->uvlinesize * 8);
- memcpy(s->dest[2], s->last_picture.data[2] + s->mb_y * 8 * s->uvlinesize, s->uvlinesize * 8);
- ff_draw_horiz_band(s, s->mb_y * 16, 16);
- s->first_slice_line = 0;
- }
- s->pict_type = FF_P_TYPE;
-}
-
-static void vc1_decode_blocks(VC1Context *v)
-{
-
- v->s.esc3_level_length = 0;
- if(v->x8_type){
- ff_intrax8_decode_picture(&v->x8, 2*v->pq+v->halfpq, v->pq*(!v->pquantizer) );
- }else{
-
- switch(v->s.pict_type) {
- case FF_I_TYPE:
- if(v->profile == PROFILE_ADVANCED)
- vc1_decode_i_blocks_adv(v);
- else
- vc1_decode_i_blocks(v);
- break;
- case FF_P_TYPE:
- if(v->p_frame_skipped)
- vc1_decode_skip_blocks(v);
- else
- vc1_decode_p_blocks(v);
- break;
- case FF_B_TYPE:
- if(v->bi_type){
- if(v->profile == PROFILE_ADVANCED)
- vc1_decode_i_blocks_adv(v);
- else
- vc1_decode_i_blocks(v);
- }else
- vc1_decode_b_blocks(v);
- break;
- }
- }
-}
-
-/** Initialize a VC1/WMV3 decoder
- * @todo TODO: Handle VC-1 IDUs (Transport level?)
- * @todo TODO: Decypher remaining bits in extra_data
- */
-static av_cold int vc1_decode_init(AVCodecContext *avctx)
-{
- VC1Context *v = avctx->priv_data;
- MpegEncContext *s = &v->s;
- GetBitContext gb;
-
- if (!avctx->extradata_size || !avctx->extradata) return -1;
- if (!(avctx->flags & CODEC_FLAG_GRAY))
- avctx->pix_fmt = avctx->get_format(avctx, avctx->codec->pix_fmts);
- else
- avctx->pix_fmt = PIX_FMT_GRAY8;
- avctx->hwaccel = ff_find_hwaccel(avctx->codec->id, avctx->pix_fmt);
- v->s.avctx = avctx;
- avctx->flags |= CODEC_FLAG_EMU_EDGE;
- v->s.flags |= CODEC_FLAG_EMU_EDGE;
-
- if(avctx->idct_algo==FF_IDCT_AUTO){
- avctx->idct_algo=FF_IDCT_WMV2;
- }
-
- if(ff_h263_decode_init(avctx) < 0)
- return -1;
- if (vc1_init_common(v) < 0) return -1;
-
- avctx->coded_width = avctx->width;
- avctx->coded_height = avctx->height;
- if (avctx->codec_id == CODEC_ID_WMV3)
- {
- int count = 0;
-
- // looks like WMV3 has a sequence header stored in the extradata
- // advanced sequence header may be before the first frame
- // the last byte of the extradata is a version number, 1 for the
- // samples we can decode
-
- init_get_bits(&gb, avctx->extradata, avctx->extradata_size*8);
-
- if (vc1_decode_sequence_header(avctx, v, &gb) < 0)
- return -1;
-
- count = avctx->extradata_size*8 - get_bits_count(&gb);
- if (count>0)
- {
- av_log(avctx, AV_LOG_INFO, "Extra data: %i bits left, value: %X\n",
- count, get_bits(&gb, count));
- }
- else if (count < 0)
- {
- av_log(avctx, AV_LOG_INFO, "Read %i bits in overflow\n", -count);
- }
- } else { // VC1/WVC1
- const uint8_t *start = avctx->extradata;
- uint8_t *end = avctx->extradata + avctx->extradata_size;
- const uint8_t *next;
- int size, buf2_size;
- uint8_t *buf2 = NULL;
- int seq_initialized = 0, ep_initialized = 0;
-
- if(avctx->extradata_size < 16) {
- av_log(avctx, AV_LOG_ERROR, "Extradata size too small: %i\n", avctx->extradata_size);
- return -1;
- }
-
- buf2 = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
- if(start[0]) start++; // in WVC1 extradata first byte is its size
- next = start;
- for(; next < end; start = next){
- next = find_next_marker(start + 4, end);
- size = next - start - 4;
- if(size <= 0) continue;
- buf2_size = vc1_unescape_buffer(start + 4, size, buf2);
- init_get_bits(&gb, buf2, buf2_size * 8);
- switch(AV_RB32(start)){
- case VC1_CODE_SEQHDR:
- if(vc1_decode_sequence_header(avctx, v, &gb) < 0){
- av_free(buf2);
- return -1;
- }
- seq_initialized = 1;
- break;
- case VC1_CODE_ENTRYPOINT:
- if(vc1_decode_entry_point(avctx, v, &gb) < 0){
- av_free(buf2);
- return -1;
- }
- ep_initialized = 1;
- break;
- }
- }
- av_free(buf2);
- if(!seq_initialized || !ep_initialized){
- av_log(avctx, AV_LOG_ERROR, "Incomplete extradata\n");
- return -1;
- }
- }
- avctx->has_b_frames= !!(avctx->max_b_frames);
- s->low_delay = !avctx->has_b_frames;
-
- s->mb_width = (avctx->coded_width+15)>>4;
- s->mb_height = (avctx->coded_height+15)>>4;
-
- /* Allocate mb bitplanes */
- v->mv_type_mb_plane = av_malloc(s->mb_stride * s->mb_height);
- v->direct_mb_plane = av_malloc(s->mb_stride * s->mb_height);
- v->acpred_plane = av_malloc(s->mb_stride * s->mb_height);
- v->over_flags_plane = av_malloc(s->mb_stride * s->mb_height);
-
- v->cbp_base = av_malloc(sizeof(v->cbp_base[0]) * 2 * s->mb_stride);
- v->cbp = v->cbp_base + s->mb_stride;
-
- /* allocate block type info in that way so it could be used with s->block_index[] */
- v->mb_type_base = av_malloc(s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride * (s->mb_height + 1) * 2);
- v->mb_type[0] = v->mb_type_base + s->b8_stride + 1;
- v->mb_type[1] = v->mb_type_base + s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride + 1;
- v->mb_type[2] = v->mb_type[1] + s->mb_stride * (s->mb_height + 1);
-
- /* Init coded blocks info */
- if (v->profile == PROFILE_ADVANCED)
- {
-// if (alloc_bitplane(&v->over_flags_plane, s->mb_width, s->mb_height) < 0)
-// return -1;
-// if (alloc_bitplane(&v->ac_pred_plane, s->mb_width, s->mb_height) < 0)
-// return -1;
- }
-
- ff_intrax8_common_init(&v->x8,s);
- return 0;
-}
-
-
-/** Decode a VC1/WMV3 frame
- * @todo TODO: Handle VC-1 IDUs (Transport level?)
- */
-static int vc1_decode_frame(AVCodecContext *avctx,
- void *data, int *data_size,
- AVPacket *avpkt)
-{
- const uint8_t *buf = avpkt->data;
- int buf_size = avpkt->size;
- VC1Context *v = avctx->priv_data;
- MpegEncContext *s = &v->s;
- AVFrame *pict = data;
- uint8_t *buf2 = NULL;
- const uint8_t *buf_start = buf;
-
- /* no supplementary picture */
- if (buf_size == 0) {
- /* special case for last picture */
- if (s->low_delay==0 && s->next_picture_ptr) {
- *pict= *(AVFrame*)s->next_picture_ptr;
- s->next_picture_ptr= NULL;
-
- *data_size = sizeof(AVFrame);
- }
-
- return 0;
- }
-
- /* We need to set current_picture_ptr before reading the header,
- * otherwise we cannot store anything in there. */
- if(s->current_picture_ptr==NULL || s->current_picture_ptr->data[0]){
- int i= ff_find_unused_picture(s, 0);
- s->current_picture_ptr= &s->picture[i];
- }
-
- if (s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU){
- if (v->profile < PROFILE_ADVANCED)
- avctx->pix_fmt = PIX_FMT_VDPAU_WMV3;
- else
- avctx->pix_fmt = PIX_FMT_VDPAU_VC1;
- }
-
- //for advanced profile we may need to parse and unescape data
- if (avctx->codec_id == CODEC_ID_VC1) {
- int buf_size2 = 0;
- buf2 = av_mallocz(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
-
- if(IS_MARKER(AV_RB32(buf))){ /* frame starts with marker and needs to be parsed */
- const uint8_t *start, *end, *next;
- int size;
-
- next = buf;
- for(start = buf, end = buf + buf_size; next < end; start = next){
- next = find_next_marker(start + 4, end);
- size = next - start - 4;
- if(size <= 0) continue;
- switch(AV_RB32(start)){
- case VC1_CODE_FRAME:
- if (avctx->hwaccel ||
- s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
- buf_start = start;
- buf_size2 = vc1_unescape_buffer(start + 4, size, buf2);
- break;
- case VC1_CODE_ENTRYPOINT: /* it should be before frame data */
- buf_size2 = vc1_unescape_buffer(start + 4, size, buf2);
- init_get_bits(&s->gb, buf2, buf_size2*8);
- vc1_decode_entry_point(avctx, v, &s->gb);
- break;
- case VC1_CODE_SLICE:
- av_log(avctx, AV_LOG_ERROR, "Sliced decoding is not implemented (yet)\n");
- av_free(buf2);
- return -1;
- }
- }
- }else if(v->interlace && ((buf[0] & 0xC0) == 0xC0)){ /* WVC1 interlaced stores both fields divided by marker */
- const uint8_t *divider;
-
- divider = find_next_marker(buf, buf + buf_size);
- if((divider == (buf + buf_size)) || AV_RB32(divider) != VC1_CODE_FIELD){
- av_log(avctx, AV_LOG_ERROR, "Error in WVC1 interlaced frame\n");
- av_free(buf2);
- return -1;
- }
-
- buf_size2 = vc1_unescape_buffer(buf, divider - buf, buf2);
- // TODO
- av_free(buf2);return -1;
- }else{
- buf_size2 = vc1_unescape_buffer(buf, buf_size, buf2);
- }
- init_get_bits(&s->gb, buf2, buf_size2*8);
- } else
- init_get_bits(&s->gb, buf, buf_size*8);
- // do parse frame header
- if(v->profile < PROFILE_ADVANCED) {
- if(vc1_parse_frame_header(v, &s->gb) == -1) {
- av_free(buf2);
- return -1;
- }
- } else {
- if(vc1_parse_frame_header_adv(v, &s->gb) == -1) {
- av_free(buf2);
- return -1;
- }
- }
-
- if(s->pict_type != FF_I_TYPE && !v->res_rtm_flag){
- av_free(buf2);
- return -1;
- }
-
- // for hurry_up==5
- s->current_picture.pict_type= s->pict_type;
- s->current_picture.key_frame= s->pict_type == FF_I_TYPE;
-
- /* skip B-frames if we don't have reference frames */
- if(s->last_picture_ptr==NULL && (s->pict_type==FF_B_TYPE || s->dropable)){
- av_free(buf2);
- return -1;//buf_size;
- }
- /* skip b frames if we are in a hurry */
- if(avctx->hurry_up && s->pict_type==FF_B_TYPE) return -1;//buf_size;
- if( (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type==FF_B_TYPE)
- || (avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=FF_I_TYPE)
- || avctx->skip_frame >= AVDISCARD_ALL) {
- av_free(buf2);
- return buf_size;
- }
- /* skip everything if we are in a hurry>=5 */
- if(avctx->hurry_up>=5) {
- av_free(buf2);
- return -1;//buf_size;
- }
-
- if(s->next_p_frame_damaged){
- if(s->pict_type==FF_B_TYPE)
- return buf_size;
- else
- s->next_p_frame_damaged=0;
- }
-
- if(MPV_frame_start(s, avctx) < 0) {
- av_free(buf2);
- return -1;
- }
-
- s->me.qpel_put= s->dsp.put_qpel_pixels_tab;
- s->me.qpel_avg= s->dsp.avg_qpel_pixels_tab;
-
- if ((CONFIG_VC1_VDPAU_DECODER || CONFIG_WMV3_VDPAU_DECODER)
- &&s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
- ff_vdpau_vc1_decode_picture(s, buf_start, (buf + buf_size) - buf_start);
- else if (avctx->hwaccel) {
- if (avctx->hwaccel->start_frame(avctx, buf, buf_size) < 0)
- return -1;
- if (avctx->hwaccel->decode_slice(avctx, buf_start, (buf + buf_size) - buf_start) < 0)
- return -1;
- if (avctx->hwaccel->end_frame(avctx) < 0)
- return -1;
- } else {
- ff_er_frame_start(s);
-
- v->bits = buf_size * 8;
- vc1_decode_blocks(v);
-//av_log(s->avctx, AV_LOG_INFO, "Consumed %i/%i bits\n", get_bits_count(&s->gb), buf_size*8);
-// if(get_bits_count(&s->gb) > buf_size * 8)
-// return -1;
- ff_er_frame_end(s);
- }
-
- MPV_frame_end(s);
-
-assert(s->current_picture.pict_type == s->current_picture_ptr->pict_type);
-assert(s->current_picture.pict_type == s->pict_type);
- if (s->pict_type == FF_B_TYPE || s->low_delay) {
- *pict= *(AVFrame*)s->current_picture_ptr;
- } else if (s->last_picture_ptr != NULL) {
- *pict= *(AVFrame*)s->last_picture_ptr;
- }
-
- if(s->last_picture_ptr || s->low_delay){
- *data_size = sizeof(AVFrame);
- ff_print_debug_info(s, pict);
- }
-
- av_free(buf2);
- return buf_size;
-}
-
-
-/** Close a VC1/WMV3 decoder
- * @warning Initial try at using MpegEncContext stuff
- */
-static av_cold int vc1_decode_end(AVCodecContext *avctx)
-{
- VC1Context *v = avctx->priv_data;
-
- av_freep(&v->hrd_rate);
- av_freep(&v->hrd_buffer);
- MPV_common_end(&v->s);
- av_freep(&v->mv_type_mb_plane);
- av_freep(&v->direct_mb_plane);
- av_freep(&v->acpred_plane);
- av_freep(&v->over_flags_plane);
- av_freep(&v->mb_type_base);
- av_freep(&v->cbp_base);
- ff_intrax8_common_end(&v->x8);
- return 0;
-}
-
-
-AVCodec vc1_decoder = {
- "vc1",
- CODEC_TYPE_VIDEO,
- CODEC_ID_VC1,
- sizeof(VC1Context),
- vc1_decode_init,
- NULL,
- vc1_decode_end,
- vc1_decode_frame,
- CODEC_CAP_DR1 | CODEC_CAP_DELAY,
- NULL,
- .long_name = NULL_IF_CONFIG_SMALL("SMPTE VC-1"),
- .pix_fmts = ff_hwaccel_pixfmt_list_420
-};
-
-AVCodec wmv3_decoder = {
- "wmv3",
- CODEC_TYPE_VIDEO,
- CODEC_ID_WMV3,
- sizeof(VC1Context),
- vc1_decode_init,
- NULL,
- vc1_decode_end,
- vc1_decode_frame,
- CODEC_CAP_DR1 | CODEC_CAP_DELAY,
- NULL,
- .long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9"),
- .pix_fmts = ff_hwaccel_pixfmt_list_420
-};
-
-#if CONFIG_WMV3_VDPAU_DECODER
-AVCodec wmv3_vdpau_decoder = {
- "wmv3_vdpau",
- CODEC_TYPE_VIDEO,
- CODEC_ID_WMV3,
- sizeof(VC1Context),
- vc1_decode_init,
- NULL,
- vc1_decode_end,
- vc1_decode_frame,
- CODEC_CAP_DR1 | CODEC_CAP_DELAY | CODEC_CAP_HWACCEL_VDPAU,
- NULL,
- .long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9 VDPAU"),
- .pix_fmts = (enum PixelFormat[]){PIX_FMT_VDPAU_WMV3, PIX_FMT_NONE}
-};
-#endif
-
-#if CONFIG_VC1_VDPAU_DECODER
-AVCodec vc1_vdpau_decoder = {
- "vc1_vdpau",
- CODEC_TYPE_VIDEO,
- CODEC_ID_VC1,
- sizeof(VC1Context),
- vc1_decode_init,
- NULL,
- vc1_decode_end,
- vc1_decode_frame,
- CODEC_CAP_DR1 | CODEC_CAP_DELAY | CODEC_CAP_HWACCEL_VDPAU,
- NULL,
- .long_name = NULL_IF_CONFIG_SMALL("SMPTE VC-1 VDPAU"),
- .pix_fmts = (enum PixelFormat[]){PIX_FMT_VDPAU_VC1, PIX_FMT_NONE}
-};
-#endif
Copied and modified: trunk/libavcodec/vc1dec.c (from r19143, trunk/libavcodec/vc1.c)
==============================================================================
--- trunk/libavcodec/vc1.c Wed Jun 10 17:08:02 2009 (r19143, copy source)
+++ trunk/libavcodec/vc1dec.c Thu Jun 11 11:31:31 2009 (r19152)
@@ -21,7 +21,7 @@
*/
/**
- * @file libavcodec/vc1.c
+ * @file libavcodec/vc1dec.c
* VC-1 and WMV3 decoder
*
*/
@@ -160,176 +160,6 @@ enum Imode {
};
/** @} */ //imode defines
-/** Decode rows by checking if they are skipped
- * @param plane Buffer to store decoded bits
- * @param[in] width Width of this buffer
- * @param[in] height Height of this buffer
- * @param[in] stride of this buffer
- */
-static void decode_rowskip(uint8_t* plane, int width, int height, int stride, GetBitContext *gb){
- int x, y;
-
- for (y=0; y<height; y++){
- if (!get_bits1(gb)) //rowskip
- memset(plane, 0, width);
- else
- for (x=0; x<width; x++)
- plane[x] = get_bits1(gb);
- plane += stride;
- }
-}
-
-/** Decode columns by checking if they are skipped
- * @param plane Buffer to store decoded bits
- * @param[in] width Width of this buffer
- * @param[in] height Height of this buffer
- * @param[in] stride of this buffer
- * @todo FIXME: Optimize
- */
-static void decode_colskip(uint8_t* plane, int width, int height, int stride, GetBitContext *gb){
- int x, y;
-
- for (x=0; x<width; x++){
- if (!get_bits1(gb)) //colskip
- for (y=0; y<height; y++)
- plane[y*stride] = 0;
- else
- for (y=0; y<height; y++)
- plane[y*stride] = get_bits1(gb);
- plane ++;
- }
-}
-
-/** Decode a bitplane's bits
- * @param data bitplane where to store the decode bits
- * @param[out] raw_flag pointer to the flag indicating that this bitplane is not coded explicitly
- * @param v VC-1 context for bit reading and logging
- * @return Status
- * @todo FIXME: Optimize
- */
-static int bitplane_decoding(uint8_t* data, int *raw_flag, VC1Context *v)
-{
- GetBitContext *gb = &v->s.gb;
-
- int imode, x, y, code, offset;
- uint8_t invert, *planep = data;
- int width, height, stride;
-
- width = v->s.mb_width;
- height = v->s.mb_height;
- stride = v->s.mb_stride;
- invert = get_bits1(gb);
- imode = get_vlc2(gb, ff_vc1_imode_vlc.table, VC1_IMODE_VLC_BITS, 1);
-
- *raw_flag = 0;
- switch (imode)
- {
- case IMODE_RAW:
- //Data is actually read in the MB layer (same for all tests == "raw")
- *raw_flag = 1; //invert ignored
- return invert;
- case IMODE_DIFF2:
- case IMODE_NORM2:
- if ((height * width) & 1)
- {
- *planep++ = get_bits1(gb);
- offset = 1;
- }
- else offset = 0;
- // decode bitplane as one long line
- for (y = offset; y < height * width; y += 2) {
- code = get_vlc2(gb, ff_vc1_norm2_vlc.table, VC1_NORM2_VLC_BITS, 1);
- *planep++ = code & 1;
- offset++;
- if(offset == width) {
- offset = 0;
- planep += stride - width;
- }
- *planep++ = code >> 1;
- offset++;
- if(offset == width) {
- offset = 0;
- planep += stride - width;
- }
- }
- break;
- case IMODE_DIFF6:
- case IMODE_NORM6:
- if(!(height % 3) && (width % 3)) { // use 2x3 decoding
- for(y = 0; y < height; y+= 3) {
- for(x = width & 1; x < width; x += 2) {
- code = get_vlc2(gb, ff_vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
- if(code < 0){
- av_log(v->s.avctx, AV_LOG_DEBUG, "invalid NORM-6 VLC\n");
- return -1;
- }
- planep[x + 0] = (code >> 0) & 1;
- planep[x + 1] = (code >> 1) & 1;
- planep[x + 0 + stride] = (code >> 2) & 1;
- planep[x + 1 + stride] = (code >> 3) & 1;
- planep[x + 0 + stride * 2] = (code >> 4) & 1;
- planep[x + 1 + stride * 2] = (code >> 5) & 1;
- }
- planep += stride * 3;
- }
- if(width & 1) decode_colskip(data, 1, height, stride, &v->s.gb);
- } else { // 3x2
- planep += (height & 1) * stride;
- for(y = height & 1; y < height; y += 2) {
- for(x = width % 3; x < width; x += 3) {
- code = get_vlc2(gb, ff_vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
- if(code < 0){
- av_log(v->s.avctx, AV_LOG_DEBUG, "invalid NORM-6 VLC\n");
- return -1;
- }
- planep[x + 0] = (code >> 0) & 1;
- planep[x + 1] = (code >> 1) & 1;
- planep[x + 2] = (code >> 2) & 1;
- planep[x + 0 + stride] = (code >> 3) & 1;
- planep[x + 1 + stride] = (code >> 4) & 1;
- planep[x + 2 + stride] = (code >> 5) & 1;
- }
- planep += stride * 2;
- }
- x = width % 3;
- if(x) decode_colskip(data , x, height , stride, &v->s.gb);
- if(height & 1) decode_rowskip(data+x, width - x, 1, stride, &v->s.gb);
- }
- break;
- case IMODE_ROWSKIP:
- decode_rowskip(data, width, height, stride, &v->s.gb);
- break;
- case IMODE_COLSKIP:
- decode_colskip(data, width, height, stride, &v->s.gb);
- break;
- default: break;
- }
-
- /* Applying diff operator */
- if (imode == IMODE_DIFF2 || imode == IMODE_DIFF6)
- {
- planep = data;
- planep[0] ^= invert;
- for (x=1; x<width; x++)
- planep[x] ^= planep[x-1];
- for (y=1; y<height; y++)
- {
- planep += stride;
- planep[0] ^= planep[-stride];
- for (x=1; x<width; x++)
- {
- if (planep[x-1] != planep[x-stride]) planep[x] ^= invert;
- else planep[x] ^= planep[x-1];
- }
- }
- }
- else if (invert)
- {
- planep = data;
- for (x=0; x<stride*height; x++) planep[x] = !planep[x]; //FIXME stride
- }
- return (imode<<1) + invert;
-}
/** @} */ //Bitplane group
@@ -349,51 +179,6 @@ static void vc1_loop_filter_iblk(MpegEnc
}
}
-/***********************************************************************/
-/** VOP Dquant decoding
- * @param v VC-1 Context
- */
-static int vop_dquant_decoding(VC1Context *v)
-{
- GetBitContext *gb = &v->s.gb;
- int pqdiff;
-
- //variable size
- if (v->dquant == 2)
- {
- pqdiff = get_bits(gb, 3);
- if (pqdiff == 7) v->altpq = get_bits(gb, 5);
- else v->altpq = v->pq + pqdiff + 1;
- }
- else
- {
- v->dquantfrm = get_bits1(gb);
- if ( v->dquantfrm )
- {
- v->dqprofile = get_bits(gb, 2);
- switch (v->dqprofile)
- {
- case DQPROFILE_SINGLE_EDGE:
- case DQPROFILE_DOUBLE_EDGES:
- v->dqsbedge = get_bits(gb, 2);
- break;
- case DQPROFILE_ALL_MBS:
- v->dqbilevel = get_bits1(gb);
- if(!v->dqbilevel)
- v->halfpq = 0;
- default: break; //Forbidden ?
- }
- if (v->dqbilevel || v->dqprofile != DQPROFILE_ALL_MBS)
- {
- pqdiff = get_bits(gb, 3);
- if (pqdiff == 7) v->altpq = get_bits(gb, 5);
- else v->altpq = v->pq + pqdiff + 1;
- }
- }
- }
- return 0;
-}
-
/** Put block onto picture
*/
static void vc1_put_block(VC1Context *v, DCTELEM block[6][64])
@@ -796,752 +581,6 @@ static void vc1_mc_4mv_chroma(VC1Context
}
}
-static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb);
-
-/**
- * Decode Simple/Main Profiles sequence header
- * @see Figure 7-8, p16-17
- * @param avctx Codec context
- * @param gb GetBit context initialized from Codec context extra_data
- * @return Status
- */
-int vc1_decode_sequence_header(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
-{
- av_log(avctx, AV_LOG_DEBUG, "Header: %0X\n", show_bits(gb, 32));
- v->profile = get_bits(gb, 2);
- if (v->profile == PROFILE_COMPLEX)
- {
- av_log(avctx, AV_LOG_ERROR, "WMV3 Complex Profile is not fully supported\n");
- }
-
- if (v->profile == PROFILE_ADVANCED)
- {
- v->zz_8x4 = ff_vc1_adv_progressive_8x4_zz;
- v->zz_4x8 = ff_vc1_adv_progressive_4x8_zz;
- return decode_sequence_header_adv(v, gb);
- }
- else
- {
- v->zz_8x4 = wmv2_scantableA;
- v->zz_4x8 = wmv2_scantableB;
- v->res_sm = get_bits(gb, 2); //reserved
- if (v->res_sm)
- {
- av_log(avctx, AV_LOG_ERROR,
- "Reserved RES_SM=%i is forbidden\n", v->res_sm);
- return -1;
- }
- }
-
- // (fps-2)/4 (->30)
- v->frmrtq_postproc = get_bits(gb, 3); //common
- // (bitrate-32kbps)/64kbps
- v->bitrtq_postproc = get_bits(gb, 5); //common
- v->s.loop_filter = get_bits1(gb); //common
- if(v->s.loop_filter == 1 && v->profile == PROFILE_SIMPLE)
- {
- av_log(avctx, AV_LOG_ERROR,
- "LOOPFILTER shell not be enabled in simple profile\n");
- }
- if(v->s.avctx->skip_loop_filter >= AVDISCARD_ALL)
- v->s.loop_filter = 0;
-
- v->res_x8 = get_bits1(gb); //reserved
- v->multires = get_bits1(gb);
- v->res_fasttx = get_bits1(gb);
- if (!v->res_fasttx)
- {
- v->s.dsp.vc1_inv_trans_8x8 = ff_simple_idct;
- v->s.dsp.vc1_inv_trans_8x4 = ff_simple_idct84_add;
- v->s.dsp.vc1_inv_trans_4x8 = ff_simple_idct48_add;
- v->s.dsp.vc1_inv_trans_4x4 = ff_simple_idct44_add;
- }
-
- v->fastuvmc = get_bits1(gb); //common
- if (!v->profile && !v->fastuvmc)
- {
- av_log(avctx, AV_LOG_ERROR,
- "FASTUVMC unavailable in Simple Profile\n");
- return -1;
- }
- v->extended_mv = get_bits1(gb); //common
- if (!v->profile && v->extended_mv)
- {
- av_log(avctx, AV_LOG_ERROR,
- "Extended MVs unavailable in Simple Profile\n");
- return -1;
- }
- v->dquant = get_bits(gb, 2); //common
- v->vstransform = get_bits1(gb); //common
-
- v->res_transtab = get_bits1(gb);
- if (v->res_transtab)
- {
- av_log(avctx, AV_LOG_ERROR,
- "1 for reserved RES_TRANSTAB is forbidden\n");
- return -1;
- }
-
- v->overlap = get_bits1(gb); //common
-
- v->s.resync_marker = get_bits1(gb);
- v->rangered = get_bits1(gb);
- if (v->rangered && v->profile == PROFILE_SIMPLE)
- {
- av_log(avctx, AV_LOG_INFO,
- "RANGERED should be set to 0 in simple profile\n");
- }
-
- v->s.max_b_frames = avctx->max_b_frames = get_bits(gb, 3); //common
- v->quantizer_mode = get_bits(gb, 2); //common
-
- v->finterpflag = get_bits1(gb); //common
- v->res_rtm_flag = get_bits1(gb); //reserved
- if (!v->res_rtm_flag)
- {
-// av_log(avctx, AV_LOG_ERROR,
-// "0 for reserved RES_RTM_FLAG is forbidden\n");
- av_log(avctx, AV_LOG_ERROR,
- "Old WMV3 version detected, only I-frames will be decoded\n");
- //return -1;
- }
- //TODO: figure out what they mean (always 0x402F)
- if(!v->res_fasttx) skip_bits(gb, 16);
- av_log(avctx, AV_LOG_DEBUG,
- "Profile %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
- "LoopFilter=%i, MultiRes=%i, FastUVMC=%i, Extended MV=%i\n"
- "Rangered=%i, VSTransform=%i, Overlap=%i, SyncMarker=%i\n"
- "DQuant=%i, Quantizer mode=%i, Max B frames=%i\n",
- v->profile, v->frmrtq_postproc, v->bitrtq_postproc,
- v->s.loop_filter, v->multires, v->fastuvmc, v->extended_mv,
- v->rangered, v->vstransform, v->overlap, v->s.resync_marker,
- v->dquant, v->quantizer_mode, avctx->max_b_frames
- );
- return 0;
-}
-
-static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb)
-{
- v->res_rtm_flag = 1;
- v->level = get_bits(gb, 3);
- if(v->level >= 5)
- {
- av_log(v->s.avctx, AV_LOG_ERROR, "Reserved LEVEL %i\n",v->level);
- }
- v->chromaformat = get_bits(gb, 2);
- if (v->chromaformat != 1)
- {
- av_log(v->s.avctx, AV_LOG_ERROR,
- "Only 4:2:0 chroma format supported\n");
- return -1;
- }
-
- // (fps-2)/4 (->30)
- v->frmrtq_postproc = get_bits(gb, 3); //common
- // (bitrate-32kbps)/64kbps
- v->bitrtq_postproc = get_bits(gb, 5); //common
- v->postprocflag = get_bits1(gb); //common
-
- v->s.avctx->coded_width = (get_bits(gb, 12) + 1) << 1;
- v->s.avctx->coded_height = (get_bits(gb, 12) + 1) << 1;
- v->s.avctx->width = v->s.avctx->coded_width;
- v->s.avctx->height = v->s.avctx->coded_height;
- v->broadcast = get_bits1(gb);
- v->interlace = get_bits1(gb);
- v->tfcntrflag = get_bits1(gb);
- v->finterpflag = get_bits1(gb);
- skip_bits1(gb); // reserved
-
- v->s.h_edge_pos = v->s.avctx->coded_width;
- v->s.v_edge_pos = v->s.avctx->coded_height;
-
- av_log(v->s.avctx, AV_LOG_DEBUG,
- "Advanced Profile level %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
- "LoopFilter=%i, ChromaFormat=%i, Pulldown=%i, Interlace: %i\n"
- "TFCTRflag=%i, FINTERPflag=%i\n",
- v->level, v->frmrtq_postproc, v->bitrtq_postproc,
- v->s.loop_filter, v->chromaformat, v->broadcast, v->interlace,
- v->tfcntrflag, v->finterpflag
- );
-
- v->psf = get_bits1(gb);
- if(v->psf) { //PsF, 6.1.13
- av_log(v->s.avctx, AV_LOG_ERROR, "Progressive Segmented Frame mode: not supported (yet)\n");
- return -1;
- }
- v->s.max_b_frames = v->s.avctx->max_b_frames = 7;
- if(get_bits1(gb)) { //Display Info - decoding is not affected by it
- int w, h, ar = 0;
- av_log(v->s.avctx, AV_LOG_DEBUG, "Display extended info:\n");
- v->s.avctx->width = w = get_bits(gb, 14) + 1;
- v->s.avctx->height = h = get_bits(gb, 14) + 1;
- av_log(v->s.avctx, AV_LOG_DEBUG, "Display dimensions: %ix%i\n", w, h);
- if(get_bits1(gb))
- ar = get_bits(gb, 4);
- if(ar && ar < 14){
- v->s.avctx->sample_aspect_ratio = ff_vc1_pixel_aspect[ar];
- }else if(ar == 15){
- w = get_bits(gb, 8);
- h = get_bits(gb, 8);
- v->s.avctx->sample_aspect_ratio = (AVRational){w, h};
- }
- av_log(v->s.avctx, AV_LOG_DEBUG, "Aspect: %i:%i\n", v->s.avctx->sample_aspect_ratio.num, v->s.avctx->sample_aspect_ratio.den);
-
- if(get_bits1(gb)){ //framerate stuff
- if(get_bits1(gb)) {
- v->s.avctx->time_base.num = 32;
- v->s.avctx->time_base.den = get_bits(gb, 16) + 1;
- } else {
- int nr, dr;
- nr = get_bits(gb, 8);
- dr = get_bits(gb, 4);
- if(nr && nr < 8 && dr && dr < 3){
- v->s.avctx->time_base.num = ff_vc1_fps_dr[dr - 1];
- v->s.avctx->time_base.den = ff_vc1_fps_nr[nr - 1] * 1000;
- }
- }
- }
-
- if(get_bits1(gb)){
- v->color_prim = get_bits(gb, 8);
- v->transfer_char = get_bits(gb, 8);
- v->matrix_coef = get_bits(gb, 8);
- }
- }
-
- v->hrd_param_flag = get_bits1(gb);
- if(v->hrd_param_flag) {
- int i;
- v->hrd_num_leaky_buckets = get_bits(gb, 5);
- skip_bits(gb, 4); //bitrate exponent
- skip_bits(gb, 4); //buffer size exponent
- for(i = 0; i < v->hrd_num_leaky_buckets; i++) {
- skip_bits(gb, 16); //hrd_rate[n]
- skip_bits(gb, 16); //hrd_buffer[n]
- }
- }
- return 0;
-}
-
-int vc1_decode_entry_point(AVCodecContext *avctx, VC1Context *v, GetBitContext *gb)
-{
- int i;
-
- av_log(avctx, AV_LOG_DEBUG, "Entry point: %08X\n", show_bits_long(gb, 32));
- v->broken_link = get_bits1(gb);
- v->closed_entry = get_bits1(gb);
- v->panscanflag = get_bits1(gb);
- v->refdist_flag = get_bits1(gb);
- v->s.loop_filter = get_bits1(gb);
- v->fastuvmc = get_bits1(gb);
- v->extended_mv = get_bits1(gb);
- v->dquant = get_bits(gb, 2);
- v->vstransform = get_bits1(gb);
- v->overlap = get_bits1(gb);
- v->quantizer_mode = get_bits(gb, 2);
-
- if(v->hrd_param_flag){
- for(i = 0; i < v->hrd_num_leaky_buckets; i++) {
- skip_bits(gb, 8); //hrd_full[n]
- }
- }
-
- if(get_bits1(gb)){
- avctx->coded_width = (get_bits(gb, 12)+1)<<1;
- avctx->coded_height = (get_bits(gb, 12)+1)<<1;
- }
- if(v->extended_mv)
- v->extended_dmv = get_bits1(gb);
- if((v->range_mapy_flag = get_bits1(gb))) {
- av_log(avctx, AV_LOG_ERROR, "Luma scaling is not supported, expect wrong picture\n");
- v->range_mapy = get_bits(gb, 3);
- }
- if((v->range_mapuv_flag = get_bits1(gb))) {
- av_log(avctx, AV_LOG_ERROR, "Chroma scaling is not supported, expect wrong picture\n");
- v->range_mapuv = get_bits(gb, 3);
- }
-
- av_log(avctx, AV_LOG_DEBUG, "Entry point info:\n"
- "BrokenLink=%i, ClosedEntry=%i, PanscanFlag=%i\n"
- "RefDist=%i, Postproc=%i, FastUVMC=%i, ExtMV=%i\n"
- "DQuant=%i, VSTransform=%i, Overlap=%i, Qmode=%i\n",
- v->broken_link, v->closed_entry, v->panscanflag, v->refdist_flag, v->s.loop_filter,
- v->fastuvmc, v->extended_mv, v->dquant, v->vstransform, v->overlap, v->quantizer_mode);
-
- return 0;
-}
-
-int vc1_parse_frame_header(VC1Context *v, GetBitContext* gb)
-{
- int pqindex, lowquant, status;
-
- if(v->finterpflag) v->interpfrm = get_bits1(gb);
- skip_bits(gb, 2); //framecnt unused
- v->rangeredfrm = 0;
- if (v->rangered) v->rangeredfrm = get_bits1(gb);
- v->s.pict_type = get_bits1(gb);
- if (v->s.avctx->max_b_frames) {
- if (!v->s.pict_type) {
- if (get_bits1(gb)) v->s.pict_type = FF_I_TYPE;
- else v->s.pict_type = FF_B_TYPE;
- } else v->s.pict_type = FF_P_TYPE;
- } else v->s.pict_type = v->s.pict_type ? FF_P_TYPE : FF_I_TYPE;
-
- v->bi_type = 0;
- if(v->s.pict_type == FF_B_TYPE) {
- v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
- v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
- if(v->bfraction == 0) {
- v->s.pict_type = FF_BI_TYPE;
- }
- }
- if(v->s.pict_type == FF_I_TYPE || v->s.pict_type == FF_BI_TYPE)
- skip_bits(gb, 7); // skip buffer fullness
-
- if(v->parse_only)
- return 0;
-
- /* calculate RND */
- if(v->s.pict_type == FF_I_TYPE || v->s.pict_type == FF_BI_TYPE)
- v->rnd = 1;
- if(v->s.pict_type == FF_P_TYPE)
- v->rnd ^= 1;
-
- /* Quantizer stuff */
- pqindex = get_bits(gb, 5);
- if(!pqindex) return -1;
- if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
- v->pq = ff_vc1_pquant_table[0][pqindex];
- else
- v->pq = ff_vc1_pquant_table[1][pqindex];
-
- v->pquantizer = 1;
- if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
- v->pquantizer = pqindex < 9;
- if (v->quantizer_mode == QUANT_NON_UNIFORM)
- v->pquantizer = 0;
- v->pqindex = pqindex;
- if (pqindex < 9) v->halfpq = get_bits1(gb);
- else v->halfpq = 0;
- if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
- v->pquantizer = get_bits1(gb);
- v->dquantfrm = 0;
- if (v->extended_mv == 1) v->mvrange = get_unary(gb, 0, 3);
- v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
- v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
- v->range_x = 1 << (v->k_x - 1);
- v->range_y = 1 << (v->k_y - 1);
- if (v->multires && v->s.pict_type != FF_B_TYPE) v->respic = get_bits(gb, 2);
-
- if(v->res_x8 && (v->s.pict_type == FF_I_TYPE || v->s.pict_type == FF_BI_TYPE)){
- v->x8_type = get_bits1(gb);
- }else v->x8_type = 0;
-//av_log(v->s.avctx, AV_LOG_INFO, "%c Frame: QP=[%i]%i (+%i/2) %i\n",
-// (v->s.pict_type == FF_P_TYPE) ? 'P' : ((v->s.pict_type == FF_I_TYPE) ? 'I' : 'B'), pqindex, v->pq, v->halfpq, v->rangeredfrm);
-
- if(v->s.pict_type == FF_I_TYPE || v->s.pict_type == FF_P_TYPE) v->use_ic = 0;
-
- switch(v->s.pict_type) {
- case FF_P_TYPE:
- if (v->pq < 5) v->tt_index = 0;
- else if(v->pq < 13) v->tt_index = 1;
- else v->tt_index = 2;
-
- lowquant = (v->pq > 12) ? 0 : 1;
- v->mv_mode = ff_vc1_mv_pmode_table[lowquant][get_unary(gb, 1, 4)];
- if (v->mv_mode == MV_PMODE_INTENSITY_COMP)
- {
- int scale, shift, i;
- v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][get_unary(gb, 1, 3)];
- v->lumscale = get_bits(gb, 6);
- v->lumshift = get_bits(gb, 6);
- v->use_ic = 1;
- /* fill lookup tables for intensity compensation */
- if(!v->lumscale) {
- scale = -64;
- shift = (255 - v->lumshift * 2) << 6;
- if(v->lumshift > 31)
- shift += 128 << 6;
- } else {
- scale = v->lumscale + 32;
- if(v->lumshift > 31)
- shift = (v->lumshift - 64) << 6;
- else
- shift = v->lumshift << 6;
- }
- for(i = 0; i < 256; i++) {
- v->luty[i] = av_clip_uint8((scale * i + shift + 32) >> 6);
- v->lutuv[i] = av_clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6);
- }
- }
- if(v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
- v->s.quarter_sample = 0;
- else if(v->mv_mode == MV_PMODE_INTENSITY_COMP) {
- if(v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)
- v->s.quarter_sample = 0;
- else
- v->s.quarter_sample = 1;
- } else
- v->s.quarter_sample = 1;
- v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN || (v->mv_mode == MV_PMODE_INTENSITY_COMP && v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN));
-
- if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
- v->mv_mode2 == MV_PMODE_MIXED_MV)
- || v->mv_mode == MV_PMODE_MIXED_MV)
- {
- status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);
- if (status < 0) return -1;
- av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "
- "Imode: %i, Invert: %i\n", status>>1, status&1);
- } else {
- v->mv_type_is_raw = 0;
- memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
- }
- status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
- if (status < 0) return -1;
- av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
- "Imode: %i, Invert: %i\n", status>>1, status&1);
-
- /* Hopefully this is correct for P frames */
- v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables
- v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
-
- if (v->dquant)
- {
- av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
- vop_dquant_decoding(v);
- }
-
- v->ttfrm = 0; //FIXME Is that so ?
- if (v->vstransform)
- {
- v->ttmbf = get_bits1(gb);
- if (v->ttmbf)
- {
- v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
- }
- } else {
- v->ttmbf = 1;
- v->ttfrm = TT_8X8;
- }
- break;
- case FF_B_TYPE:
- if (v->pq < 5) v->tt_index = 0;
- else if(v->pq < 13) v->tt_index = 1;
- else v->tt_index = 2;
-
- v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;
- v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);
- v->s.mspel = v->s.quarter_sample;
-
- status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
- if (status < 0) return -1;
- av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
- "Imode: %i, Invert: %i\n", status>>1, status&1);
- status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
- if (status < 0) return -1;
- av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
- "Imode: %i, Invert: %i\n", status>>1, status&1);
-
- v->s.mv_table_index = get_bits(gb, 2);
- v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
-
- if (v->dquant)
- {
- av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
- vop_dquant_decoding(v);
- }
-
- v->ttfrm = 0;
- if (v->vstransform)
- {
- v->ttmbf = get_bits1(gb);
- if (v->ttmbf)
- {
- v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
- }
- } else {
- v->ttmbf = 1;
- v->ttfrm = TT_8X8;
- }
- break;
- }
-
- if(!v->x8_type)
- {
- /* AC Syntax */
- v->c_ac_table_index = decode012(gb);
- if (v->s.pict_type == FF_I_TYPE || v->s.pict_type == FF_BI_TYPE)
- {
- v->y_ac_table_index = decode012(gb);
- }
- /* DC Syntax */
- v->s.dc_table_index = get_bits1(gb);
- }
-
- if(v->s.pict_type == FF_BI_TYPE) {
- v->s.pict_type = FF_B_TYPE;
- v->bi_type = 1;
- }
- return 0;
-}
-
-int vc1_parse_frame_header_adv(VC1Context *v, GetBitContext* gb)
-{
- int pqindex, lowquant;
- int status;
-
- v->p_frame_skipped = 0;
-
- if(v->interlace){
- v->fcm = decode012(gb);
- if(v->fcm) return -1; // interlaced frames/fields are not implemented
- }
- switch(get_unary(gb, 0, 4)) {
- case 0:
- v->s.pict_type = FF_P_TYPE;
- break;
- case 1:
- v->s.pict_type = FF_B_TYPE;
- break;
- case 2:
- v->s.pict_type = FF_I_TYPE;
- break;
- case 3:
- v->s.pict_type = FF_BI_TYPE;
- break;
- case 4:
- v->s.pict_type = FF_P_TYPE; // skipped pic
- v->p_frame_skipped = 1;
- return 0;
- }
- if(v->tfcntrflag)
- skip_bits(gb, 8);
- if(v->broadcast) {
- if(!v->interlace || v->psf) {
- v->rptfrm = get_bits(gb, 2);
- } else {
- v->tff = get_bits1(gb);
- v->rptfrm = get_bits1(gb);
- }
- }
- if(v->panscanflag) {
- //...
- }
- v->rnd = get_bits1(gb);
- if(v->interlace)
- v->uvsamp = get_bits1(gb);
- if(v->finterpflag) v->interpfrm = get_bits1(gb);
- if(v->s.pict_type == FF_B_TYPE) {
- v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1);
- v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
- if(v->bfraction == 0) {
- v->s.pict_type = FF_BI_TYPE; /* XXX: should not happen here */
- }
- }
- pqindex = get_bits(gb, 5);
- if(!pqindex) return -1;
- v->pqindex = pqindex;
- if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
- v->pq = ff_vc1_pquant_table[0][pqindex];
- else
- v->pq = ff_vc1_pquant_table[1][pqindex];
-
- v->pquantizer = 1;
- if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
- v->pquantizer = pqindex < 9;
- if (v->quantizer_mode == QUANT_NON_UNIFORM)
- v->pquantizer = 0;
- v->pqindex = pqindex;
- if (pqindex < 9) v->halfpq = get_bits1(gb);
- else v->halfpq = 0;
- if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
- v->pquantizer = get_bits1(gb);
- if(v->postprocflag)
- v->postproc = get_bits(gb, 2);
-
- if(v->s.pict_type == FF_I_TYPE || v->s.pict_type == FF_P_TYPE) v->use_ic = 0;
-
- if(v->parse_only)
- return 0;
-
- switch(v->s.pict_type) {
- case FF_I_TYPE:
- case FF_BI_TYPE:
- status = bitplane_decoding(v->acpred_plane, &v->acpred_is_raw, v);
- if (status < 0) return -1;
- av_log(v->s.avctx, AV_LOG_DEBUG, "ACPRED plane encoding: "
- "Imode: %i, Invert: %i\n", status>>1, status&1);
- v->condover = CONDOVER_NONE;
- if(v->overlap && v->pq <= 8) {
- v->condover = decode012(gb);
- if(v->condover == CONDOVER_SELECT) {
- status = bitplane_decoding(v->over_flags_plane, &v->overflg_is_raw, v);
- if (status < 0) return -1;
- av_log(v->s.avctx, AV_LOG_DEBUG, "CONDOVER plane encoding: "
- "Imode: %i, Invert: %i\n", status>>1, status&1);
- }
- }
- break;
- case FF_P_TYPE:
- if (v->extended_mv) v->mvrange = get_unary(gb, 0, 3);
- else v->mvrange = 0;
- v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
- v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
- v->range_x = 1 << (v->k_x - 1);
- v->range_y = 1 << (v->k_y - 1);
-
- if (v->pq < 5) v->tt_index = 0;
- else if(v->pq < 13) v->tt_index = 1;
- else v->tt_index = 2;
-
- lowquant = (v->pq > 12) ? 0 : 1;
- v->mv_mode = ff_vc1_mv_pmode_table[lowquant][get_unary(gb, 1, 4)];
- if (v->mv_mode == MV_PMODE_INTENSITY_COMP)
- {
- int scale, shift, i;
- v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][get_unary(gb, 1, 3)];
- v->lumscale = get_bits(gb, 6);
- v->lumshift = get_bits(gb, 6);
- /* fill lookup tables for intensity compensation */
- if(!v->lumscale) {
- scale = -64;
- shift = (255 - v->lumshift * 2) << 6;
- if(v->lumshift > 31)
- shift += 128 << 6;
- } else {
- scale = v->lumscale + 32;
- if(v->lumshift > 31)
- shift = (v->lumshift - 64) << 6;
- else
- shift = v->lumshift << 6;
- }
- for(i = 0; i < 256; i++) {
- v->luty[i] = av_clip_uint8((scale * i + shift + 32) >> 6);
- v->lutuv[i] = av_clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6);
- }
- v->use_ic = 1;
- }
- if(v->mv_mode == MV_PMODE_1MV_HPEL || v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
- v->s.quarter_sample = 0;
- else if(v->mv_mode == MV_PMODE_INTENSITY_COMP) {
- if(v->mv_mode2 == MV_PMODE_1MV_HPEL || v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)
- v->s.quarter_sample = 0;
- else
- v->s.quarter_sample = 1;
- } else
- v->s.quarter_sample = 1;
- v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN || (v->mv_mode == MV_PMODE_INTENSITY_COMP && v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN));
-
- if ((v->mv_mode == MV_PMODE_INTENSITY_COMP &&
- v->mv_mode2 == MV_PMODE_MIXED_MV)
- || v->mv_mode == MV_PMODE_MIXED_MV)
- {
- status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);
- if (status < 0) return -1;
- av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: "
- "Imode: %i, Invert: %i\n", status>>1, status&1);
- } else {
- v->mv_type_is_raw = 0;
- memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
- }
- status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
- if (status < 0) return -1;
- av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
- "Imode: %i, Invert: %i\n", status>>1, status&1);
-
- /* Hopefully this is correct for P frames */
- v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables
- v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
- if (v->dquant)
- {
- av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
- vop_dquant_decoding(v);
- }
-
- v->ttfrm = 0; //FIXME Is that so ?
- if (v->vstransform)
- {
- v->ttmbf = get_bits1(gb);
- if (v->ttmbf)
- {
- v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
- }
- } else {
- v->ttmbf = 1;
- v->ttfrm = TT_8X8;
- }
- break;
- case FF_B_TYPE:
- if (v->extended_mv) v->mvrange = get_unary(gb, 0, 3);
- else v->mvrange = 0;
- v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13
- v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11
- v->range_x = 1 << (v->k_x - 1);
- v->range_y = 1 << (v->k_y - 1);
-
- if (v->pq < 5) v->tt_index = 0;
- else if(v->pq < 13) v->tt_index = 1;
- else v->tt_index = 2;
-
- v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN;
- v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);
- v->s.mspel = v->s.quarter_sample;
-
- status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v);
- if (status < 0) return -1;
- av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: "
- "Imode: %i, Invert: %i\n", status>>1, status&1);
- status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
- if (status < 0) return -1;
- av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: "
- "Imode: %i, Invert: %i\n", status>>1, status&1);
-
- v->s.mv_table_index = get_bits(gb, 2);
- v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
-
- if (v->dquant)
- {
- av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
- vop_dquant_decoding(v);
- }
-
- v->ttfrm = 0;
- if (v->vstransform)
- {
- v->ttmbf = get_bits1(gb);
- if (v->ttmbf)
- {
- v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
- }
- } else {
- v->ttmbf = 1;
- v->ttfrm = TT_8X8;
- }
- break;
- }
-
- /* AC Syntax */
- v->c_ac_table_index = decode012(gb);
- if (v->s.pict_type == FF_I_TYPE || v->s.pict_type == FF_BI_TYPE)
- {
- v->y_ac_table_index = decode012(gb);
- }
- /* DC Syntax */
- v->s.dc_table_index = get_bits1(gb);
- if ((v->s.pict_type == FF_I_TYPE || v->s.pict_type == FF_BI_TYPE) && v->dquant) {
- av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n");
- vop_dquant_decoding(v);
- }
-
- v->bi_type = 0;
- if(v->s.pict_type == FF_BI_TYPE) {
- v->s.pict_type = FF_B_TYPE;
- v->bi_type = 1;
- }
- return 0;
-}
-
/***********************************************************************/
/**
* @defgroup vc1block VC-1 Block-level functions
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