[FFmpeg-cvslog] r16514 - in trunk/libavcodec: Makefile options.c utils.c

stefano subversion
Sat Jan 10 10:53:21 CET 2009


Author: stefano
Date: Sat Jan 10 10:53:21 2009
New Revision: 16514

Log:
Move the AVCodecContext options definition to a dedicated file, reduce
the utils.c clutter.

Added:
   trunk/libavcodec/options.c   (contents, props changed)
      - copied, changed from r16492, trunk/libavcodec/utils.c
Modified:
   trunk/libavcodec/Makefile
   trunk/libavcodec/utils.c

Modified: trunk/libavcodec/Makefile
==============================================================================
--- trunk/libavcodec/Makefile	Sat Jan 10 03:45:07 2009	(r16513)
+++ trunk/libavcodec/Makefile	Sat Jan 10 10:53:21 2009	(r16514)
@@ -15,6 +15,7 @@ OBJS = allcodecs.o                      
        imgconvert.o                                                     \
        jrevdct.o                                                        \
        opt.o                                                            \
+       options.o                                                        \
        parser.o                                                         \
        raw.o                                                            \
        resample.o                                                       \

Copied and modified: trunk/libavcodec/options.c (from r16492, trunk/libavcodec/utils.c)
==============================================================================
--- trunk/libavcodec/utils.c	Thu Jan  8 00:48:32 2009	(r16492, copy source)
+++ trunk/libavcodec/options.c	Sat Jan 10 10:53:21 2009	(r16514)
@@ -1,5 +1,4 @@
 /*
- * utils for libavcodec
  * Copyright (c) 2001 Fabrice Bellard.
  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni at gmx.at>
  *
@@ -21,367 +20,13 @@
  */
 
 /**
- * @file utils.c
- * utils.
+ * @file options.c
+ * Options definition for AVCodecContext.
  */
 
-/* needed for mkstemp() */
-#define _XOPEN_SOURCE 600
-
-#include "libavutil/avstring.h"
-#include "libavutil/integer.h"
-#include "libavutil/crc.h"
 #include "avcodec.h"
-#include "dsputil.h"
 #include "opt.h"
-#include "imgconvert.h"
-#include "audioconvert.h"
-#include <stdlib.h>
-#include <stdarg.h>
-#include <limits.h>
-#include <float.h>
-#if !defined(HAVE_MKSTEMP)
-#include <fcntl.h>
-#endif
-
-const uint8_t ff_reverse[256]={
-0x00,0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0,
-0x08,0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8,
-0x04,0x84,0x44,0xC4,0x24,0xA4,0x64,0xE4,0x14,0x94,0x54,0xD4,0x34,0xB4,0x74,0xF4,
-0x0C,0x8C,0x4C,0xCC,0x2C,0xAC,0x6C,0xEC,0x1C,0x9C,0x5C,0xDC,0x3C,0xBC,0x7C,0xFC,
-0x02,0x82,0x42,0xC2,0x22,0xA2,0x62,0xE2,0x12,0x92,0x52,0xD2,0x32,0xB2,0x72,0xF2,
-0x0A,0x8A,0x4A,0xCA,0x2A,0xAA,0x6A,0xEA,0x1A,0x9A,0x5A,0xDA,0x3A,0xBA,0x7A,0xFA,
-0x06,0x86,0x46,0xC6,0x26,0xA6,0x66,0xE6,0x16,0x96,0x56,0xD6,0x36,0xB6,0x76,0xF6,
-0x0E,0x8E,0x4E,0xCE,0x2E,0xAE,0x6E,0xEE,0x1E,0x9E,0x5E,0xDE,0x3E,0xBE,0x7E,0xFE,
-0x01,0x81,0x41,0xC1,0x21,0xA1,0x61,0xE1,0x11,0x91,0x51,0xD1,0x31,0xB1,0x71,0xF1,
-0x09,0x89,0x49,0xC9,0x29,0xA9,0x69,0xE9,0x19,0x99,0x59,0xD9,0x39,0xB9,0x79,0xF9,
-0x05,0x85,0x45,0xC5,0x25,0xA5,0x65,0xE5,0x15,0x95,0x55,0xD5,0x35,0xB5,0x75,0xF5,
-0x0D,0x8D,0x4D,0xCD,0x2D,0xAD,0x6D,0xED,0x1D,0x9D,0x5D,0xDD,0x3D,0xBD,0x7D,0xFD,
-0x03,0x83,0x43,0xC3,0x23,0xA3,0x63,0xE3,0x13,0x93,0x53,0xD3,0x33,0xB3,0x73,0xF3,
-0x0B,0x8B,0x4B,0xCB,0x2B,0xAB,0x6B,0xEB,0x1B,0x9B,0x5B,0xDB,0x3B,0xBB,0x7B,0xFB,
-0x07,0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7,
-0x0F,0x8F,0x4F,0xCF,0x2F,0xAF,0x6F,0xEF,0x1F,0x9F,0x5F,0xDF,0x3F,0xBF,0x7F,0xFF,
-};
-
-static int volatile entangled_thread_counter=0;
-
-void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size)
-{
-    if(min_size < *size)
-        return ptr;
-
-    *size= FFMAX(17*min_size/16 + 32, min_size);
-
-    ptr= av_realloc(ptr, *size);
-    if(!ptr) //we could set this to the unmodified min_size but this is safer if the user lost the ptr and uses NULL now
-        *size= 0;
-
-    return ptr;
-}
-
-/* encoder management */
-static AVCodec *first_avcodec = NULL;
-
-AVCodec *av_codec_next(AVCodec *c){
-    if(c) return c->next;
-    else  return first_avcodec;
-}
-
-void register_avcodec(AVCodec *codec)
-{
-    AVCodec **p;
-    avcodec_init();
-    p = &first_avcodec;
-    while (*p != NULL) p = &(*p)->next;
-    *p = codec;
-    codec->next = NULL;
-}
-
-void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
-    s->coded_width = width;
-    s->coded_height= height;
-    s->width = -((-width )>>s->lowres);
-    s->height= -((-height)>>s->lowres);
-}
-
-typedef struct InternalBuffer{
-    int last_pic_num;
-    uint8_t *base[4];
-    uint8_t *data[4];
-    int linesize[4];
-    int width, height;
-    enum PixelFormat pix_fmt;
-}InternalBuffer;
-
-#define INTERNAL_BUFFER_SIZE 32
-
-#define ALIGN(x, a) (((x)+(a)-1)&~((a)-1))
-
-void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
-    int w_align= 1;
-    int h_align= 1;
-
-    switch(s->pix_fmt){
-    case PIX_FMT_YUV420P:
-    case PIX_FMT_YUYV422:
-    case PIX_FMT_UYVY422:
-    case PIX_FMT_YUV422P:
-    case PIX_FMT_YUV444P:
-    case PIX_FMT_GRAY8:
-    case PIX_FMT_GRAY16BE:
-    case PIX_FMT_GRAY16LE:
-    case PIX_FMT_YUVJ420P:
-    case PIX_FMT_YUVJ422P:
-    case PIX_FMT_YUVJ444P:
-    case PIX_FMT_YUVA420P:
-        w_align= 16; //FIXME check for non mpeg style codecs and use less alignment
-        h_align= 16;
-        break;
-    case PIX_FMT_YUV411P:
-    case PIX_FMT_UYYVYY411:
-        w_align=32;
-        h_align=8;
-        break;
-    case PIX_FMT_YUV410P:
-        if(s->codec_id == CODEC_ID_SVQ1){
-            w_align=64;
-            h_align=64;
-        }
-    case PIX_FMT_RGB555:
-        if(s->codec_id == CODEC_ID_RPZA){
-            w_align=4;
-            h_align=4;
-        }
-    case PIX_FMT_PAL8:
-        if(s->codec_id == CODEC_ID_SMC){
-            w_align=4;
-            h_align=4;
-        }
-        break;
-    case PIX_FMT_BGR24:
-        if((s->codec_id == CODEC_ID_MSZH) || (s->codec_id == CODEC_ID_ZLIB)){
-            w_align=4;
-            h_align=4;
-        }
-        break;
-    default:
-        w_align= 1;
-        h_align= 1;
-        break;
-    }
-
-    *width = ALIGN(*width , w_align);
-    *height= ALIGN(*height, h_align);
-    if(s->codec_id == CODEC_ID_H264)
-        *height+=2; // some of the optimized chroma MC reads one line too much
-}
-
-int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h){
-    if((int)w>0 && (int)h>0 && (w+128)*(uint64_t)(h+128) < INT_MAX/4)
-        return 0;
-
-    av_log(av_log_ctx, AV_LOG_ERROR, "picture size invalid (%ux%u)\n", w, h);
-    return -1;
-}
-
-int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
-    int i;
-    int w= s->width;
-    int h= s->height;
-    InternalBuffer *buf;
-    int *picture_number;
-
-    if(pic->data[0]!=NULL) {
-        av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n");
-        return -1;
-    }
-    if(s->internal_buffer_count >= INTERNAL_BUFFER_SIZE) {
-        av_log(s, AV_LOG_ERROR, "internal_buffer_count overflow (missing release_buffer?)\n");
-        return -1;
-    }
-
-    if(avcodec_check_dimensions(s,w,h))
-        return -1;
-
-    if(s->internal_buffer==NULL){
-        s->internal_buffer= av_mallocz((INTERNAL_BUFFER_SIZE+1)*sizeof(InternalBuffer));
-    }
-#if 0
-    s->internal_buffer= av_fast_realloc(
-        s->internal_buffer,
-        &s->internal_buffer_size,
-        sizeof(InternalBuffer)*FFMAX(99,  s->internal_buffer_count+1)/*FIXME*/
-        );
-#endif
-
-    buf= &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
-    picture_number= &(((InternalBuffer*)s->internal_buffer)[INTERNAL_BUFFER_SIZE]).last_pic_num; //FIXME ugly hack
-    (*picture_number)++;
-
-    if(buf->base[0] && (buf->width != w || buf->height != h || buf->pix_fmt != s->pix_fmt)){
-        for(i=0; i<4; i++){
-            av_freep(&buf->base[i]);
-            buf->data[i]= NULL;
-        }
-    }
-
-    if(buf->base[0]){
-        pic->age= *picture_number - buf->last_pic_num;
-        buf->last_pic_num= *picture_number;
-    }else{
-        int h_chroma_shift, v_chroma_shift;
-        int size[4] = {0};
-        int tmpsize;
-        AVPicture picture;
-        int stride_align[4];
-
-        avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
-
-        avcodec_align_dimensions(s, &w, &h);
-
-        if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
-            w+= EDGE_WIDTH*2;
-            h+= EDGE_WIDTH*2;
-        }
-
-        ff_fill_linesize(&picture, s->pix_fmt, w);
-
-        for (i=0; i<4; i++){
-//STRIDE_ALIGN is 8 for SSE* but this does not work for SVQ1 chroma planes
-//we could change STRIDE_ALIGN to 16 for x86/sse but it would increase the
-//picture size unneccessarily in some cases. The solution here is not
-//pretty and better ideas are welcome!
-#ifdef HAVE_MMX
-            if(s->codec_id == CODEC_ID_SVQ1)
-                stride_align[i]= 16;
-            else
-#endif
-            stride_align[i] = STRIDE_ALIGN;
-            picture.linesize[i] = ALIGN(picture.linesize[i], stride_align[i]);
-        }
-
-        tmpsize = ff_fill_pointer(&picture, NULL, s->pix_fmt, h);
-
-        for (i=0; i<3 && picture.data[i+1]; i++)
-            size[i] = picture.data[i+1] - picture.data[i];
-        size[i] = tmpsize - (picture.data[i] - picture.data[0]);
-
-        buf->last_pic_num= -256*256*256*64;
-        memset(buf->base, 0, sizeof(buf->base));
-        memset(buf->data, 0, sizeof(buf->data));
-
-        for(i=0; i<4 && size[i]; i++){
-            const int h_shift= i==0 ? 0 : h_chroma_shift;
-            const int v_shift= i==0 ? 0 : v_chroma_shift;
-
-            buf->linesize[i]= picture.linesize[i];
-
-            buf->base[i]= av_malloc(size[i]+16); //FIXME 16
-            if(buf->base[i]==NULL) return -1;
-            memset(buf->base[i], 128, size[i]);
-
-            // no edge if EDEG EMU or not planar YUV, we check for PAL8 redundantly to protect against a exploitable bug regression ...
-            if((s->flags&CODEC_FLAG_EMU_EDGE) || (s->pix_fmt == PIX_FMT_PAL8) || !size[2])
-                buf->data[i] = buf->base[i];
-            else
-                buf->data[i] = buf->base[i] + ALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift), stride_align[i]);
-        }
-        buf->width  = s->width;
-        buf->height = s->height;
-        buf->pix_fmt= s->pix_fmt;
-        pic->age= 256*256*256*64;
-    }
-    pic->type= FF_BUFFER_TYPE_INTERNAL;
-
-    for(i=0; i<4; i++){
-        pic->base[i]= buf->base[i];
-        pic->data[i]= buf->data[i];
-        pic->linesize[i]= buf->linesize[i];
-    }
-    s->internal_buffer_count++;
-
-    pic->reordered_opaque= s->reordered_opaque;
-
-    if(s->debug&FF_DEBUG_BUFFERS)
-        av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
-
-    return 0;
-}
-
-void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
-    int i;
-    InternalBuffer *buf, *last;
-
-    assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
-    assert(s->internal_buffer_count);
-
-    buf = NULL; /* avoids warning */
-    for(i=0; i<s->internal_buffer_count; i++){ //just 3-5 checks so is not worth to optimize
-        buf= &((InternalBuffer*)s->internal_buffer)[i];
-        if(buf->data[0] == pic->data[0])
-            break;
-    }
-    assert(i < s->internal_buffer_count);
-    s->internal_buffer_count--;
-    last = &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
-
-    FFSWAP(InternalBuffer, *buf, *last);
-
-    for(i=0; i<4; i++){
-        pic->data[i]=NULL;
-//        pic->base[i]=NULL;
-    }
-//printf("R%X\n", pic->opaque);
-
-    if(s->debug&FF_DEBUG_BUFFERS)
-        av_log(s, AV_LOG_DEBUG, "default_release_buffer called on pic %p, %d buffers used\n", pic, s->internal_buffer_count);
-}
-
-int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
-    AVFrame temp_pic;
-    int i;
-
-    /* If no picture return a new buffer */
-    if(pic->data[0] == NULL) {
-        /* We will copy from buffer, so must be readable */
-        pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
-        return s->get_buffer(s, pic);
-    }
-
-    /* If internal buffer type return the same buffer */
-    if(pic->type == FF_BUFFER_TYPE_INTERNAL)
-        return 0;
-
-    /*
-     * Not internal type and reget_buffer not overridden, emulate cr buffer
-     */
-    temp_pic = *pic;
-    for(i = 0; i < 4; i++)
-        pic->data[i] = pic->base[i] = NULL;
-    pic->opaque = NULL;
-    /* Allocate new frame */
-    if (s->get_buffer(s, pic))
-        return -1;
-    /* Copy image data from old buffer to new buffer */
-    av_picture_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width,
-             s->height);
-    s->release_buffer(s, &temp_pic); // Release old frame
-    return 0;
-}
-
-int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size){
-    int i;
-
-    for(i=0; i<count; i++){
-        int r= func(c, (char*)arg + i*size);
-        if(ret) ret[i]= r;
-    }
-    return 0;
-}
-
-enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt){
-    return fmt[0];
-}
+#include <float.h>              /* FLT_MIN, FLT_MAX */
 
 static const char* context_to_name(void* ptr) {
     AVCodecContext *avc= ptr;
@@ -805,720 +450,3 @@ AVCodecContext *avcodec_alloc_context(vo
     return avcodec_alloc_context2(CODEC_TYPE_UNKNOWN);
 }
 
-void avcodec_get_frame_defaults(AVFrame *pic){
-    memset(pic, 0, sizeof(AVFrame));
-
-    pic->pts= AV_NOPTS_VALUE;
-    pic->key_frame= 1;
-}
-
-AVFrame *avcodec_alloc_frame(void){
-    AVFrame *pic= av_malloc(sizeof(AVFrame));
-
-    if(pic==NULL) return NULL;
-
-    avcodec_get_frame_defaults(pic);
-
-    return pic;
-}
-
-int attribute_align_arg avcodec_open(AVCodecContext *avctx, AVCodec *codec)
-{
-    int ret= -1;
-
-    entangled_thread_counter++;
-    if(entangled_thread_counter != 1){
-        av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
-        goto end;
-    }
-
-    if(avctx->codec || !codec)
-        goto end;
-
-    if (codec->priv_data_size > 0) {
-        avctx->priv_data = av_mallocz(codec->priv_data_size);
-        if (!avctx->priv_data) {
-            ret = AVERROR(ENOMEM);
-            goto end;
-        }
-    } else {
-        avctx->priv_data = NULL;
-    }
-
-    if(avctx->coded_width && avctx->coded_height)
-        avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
-    else if(avctx->width && avctx->height)
-        avcodec_set_dimensions(avctx, avctx->width, avctx->height);
-
-    if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height)){
-        av_freep(&avctx->priv_data);
-        ret = AVERROR(EINVAL);
-        goto end;
-    }
-
-    avctx->codec = codec;
-    avctx->codec_id = codec->id;
-    avctx->frame_number = 0;
-    if(avctx->codec->init){
-        ret = avctx->codec->init(avctx);
-        if (ret < 0) {
-            av_freep(&avctx->priv_data);
-            avctx->codec= NULL;
-            goto end;
-        }
-    }
-    ret=0;
-end:
-    entangled_thread_counter--;
-    return ret;
-}
-
-int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
-                         const short *samples)
-{
-    if(buf_size < FF_MIN_BUFFER_SIZE && 0){
-        av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
-        return -1;
-    }
-    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){
-        int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)samples);
-        avctx->frame_number++;
-        return ret;
-    }else
-        return 0;
-}
-
-int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
-                         const AVFrame *pict)
-{
-    if(buf_size < FF_MIN_BUFFER_SIZE){
-        av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n");
-        return -1;
-    }
-    if(avcodec_check_dimensions(avctx,avctx->width,avctx->height))
-        return -1;
-    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){
-        int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)pict);
-        avctx->frame_number++;
-        emms_c(); //needed to avoid an emms_c() call before every return;
-
-        return ret;
-    }else
-        return 0;
-}
-
-int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
-                            const AVSubtitle *sub)
-{
-    int ret;
-    ret = avctx->codec->encode(avctx, buf, buf_size, (void *)sub);
-    avctx->frame_number++;
-    return ret;
-}
-
-int attribute_align_arg avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
-                         int *got_picture_ptr,
-                         const uint8_t *buf, int buf_size)
-{
-    int ret;
-
-    *got_picture_ptr= 0;
-    if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height))
-        return -1;
-    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
-        ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
-                                buf, buf_size);
-
-        emms_c(); //needed to avoid an emms_c() call before every return;
-
-        if (*got_picture_ptr)
-            avctx->frame_number++;
-    }else
-        ret= 0;
-
-    return ret;
-}
-
-int attribute_align_arg avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples,
-                         int *frame_size_ptr,
-                         const uint8_t *buf, int buf_size)
-{
-    int ret;
-
-    if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
-        //FIXME remove the check below _after_ ensuring that all audio check that the available space is enough
-        if(*frame_size_ptr < AVCODEC_MAX_AUDIO_FRAME_SIZE){
-            av_log(avctx, AV_LOG_ERROR, "buffer smaller than AVCODEC_MAX_AUDIO_FRAME_SIZE\n");
-            return -1;
-        }
-        if(*frame_size_ptr < FF_MIN_BUFFER_SIZE ||
-        *frame_size_ptr < avctx->channels * avctx->frame_size * sizeof(int16_t)){
-            av_log(avctx, AV_LOG_ERROR, "buffer %d too small\n", *frame_size_ptr);
-            return -1;
-        }
-
-        ret = avctx->codec->decode(avctx, samples, frame_size_ptr,
-                                buf, buf_size);
-        avctx->frame_number++;
-    }else{
-        ret= 0;
-        *frame_size_ptr=0;
-    }
-    return ret;
-}
-
-int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
-                            int *got_sub_ptr,
-                            const uint8_t *buf, int buf_size)
-{
-    int ret;
-
-    *got_sub_ptr = 0;
-    ret = avctx->codec->decode(avctx, sub, got_sub_ptr,
-                               buf, buf_size);
-    if (*got_sub_ptr)
-        avctx->frame_number++;
-    return ret;
-}
-
-int avcodec_close(AVCodecContext *avctx)
-{
-    entangled_thread_counter++;
-    if(entangled_thread_counter != 1){
-        av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
-        entangled_thread_counter--;
-        return -1;
-    }
-
-    if (ENABLE_THREADS && avctx->thread_opaque)
-        avcodec_thread_free(avctx);
-    if (avctx->codec->close)
-        avctx->codec->close(avctx);
-    avcodec_default_free_buffers(avctx);
-    av_freep(&avctx->priv_data);
-    avctx->codec = NULL;
-    entangled_thread_counter--;
-    return 0;
-}
-
-AVCodec *avcodec_find_encoder(enum CodecID id)
-{
-    AVCodec *p;
-    p = first_avcodec;
-    while (p) {
-        if (p->encode != NULL && p->id == id)
-            return p;
-        p = p->next;
-    }
-    return NULL;
-}
-
-AVCodec *avcodec_find_encoder_by_name(const char *name)
-{
-    AVCodec *p;
-    if (!name)
-        return NULL;
-    p = first_avcodec;
-    while (p) {
-        if (p->encode != NULL && strcmp(name,p->name) == 0)
-            return p;
-        p = p->next;
-    }
-    return NULL;
-}
-
-AVCodec *avcodec_find_decoder(enum CodecID id)
-{
-    AVCodec *p;
-    p = first_avcodec;
-    while (p) {
-        if (p->decode != NULL && p->id == id)
-            return p;
-        p = p->next;
-    }
-    return NULL;
-}
-
-AVCodec *avcodec_find_decoder_by_name(const char *name)
-{
-    AVCodec *p;
-    if (!name)
-        return NULL;
-    p = first_avcodec;
-    while (p) {
-        if (p->decode != NULL && strcmp(name,p->name) == 0)
-            return p;
-        p = p->next;
-    }
-    return NULL;
-}
-
-void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
-{
-    const char *codec_name;
-    AVCodec *p;
-    char buf1[32];
-    int bitrate;
-    AVRational display_aspect_ratio;
-
-    if (encode)
-        p = avcodec_find_encoder(enc->codec_id);
-    else
-        p = avcodec_find_decoder(enc->codec_id);
-
-    if (p) {
-        codec_name = p->name;
-        if (!encode && enc->codec_id == CODEC_ID_MP3) {
-            if (enc->sub_id == 2)
-                codec_name = "mp2";
-            else if (enc->sub_id == 1)
-                codec_name = "mp1";
-        }
-    } else if (enc->codec_id == CODEC_ID_MPEG2TS) {
-        /* fake mpeg2 transport stream codec (currently not
-           registered) */
-        codec_name = "mpeg2ts";
-    } else if (enc->codec_name[0] != '\0') {
-        codec_name = enc->codec_name;
-    } else {
-        /* output avi tags */
-        if(   isprint(enc->codec_tag&0xFF) && isprint((enc->codec_tag>>8)&0xFF)
-           && isprint((enc->codec_tag>>16)&0xFF) && isprint((enc->codec_tag>>24)&0xFF)){
-            snprintf(buf1, sizeof(buf1), "%c%c%c%c / 0x%04X",
-                     enc->codec_tag & 0xff,
-                     (enc->codec_tag >> 8) & 0xff,
-                     (enc->codec_tag >> 16) & 0xff,
-                     (enc->codec_tag >> 24) & 0xff,
-                      enc->codec_tag);
-        } else {
-            snprintf(buf1, sizeof(buf1), "0x%04x", enc->codec_tag);
-        }
-        codec_name = buf1;
-    }
-
-    switch(enc->codec_type) {
-    case CODEC_TYPE_VIDEO:
-        snprintf(buf, buf_size,
-                 "Video: %s%s",
-                 codec_name, enc->mb_decision ? " (hq)" : "");
-        if (enc->pix_fmt != PIX_FMT_NONE) {
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     ", %s",
-                     avcodec_get_pix_fmt_name(enc->pix_fmt));
-        }
-        if (enc->width) {
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     ", %dx%d",
-                     enc->width, enc->height);
-            if (enc->sample_aspect_ratio.num) {
-                av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
-                          enc->width*enc->sample_aspect_ratio.num,
-                          enc->height*enc->sample_aspect_ratio.den,
-                          1024*1024);
-                snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                         " [PAR %d:%d DAR %d:%d]",
-                         enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den,
-                         display_aspect_ratio.num, display_aspect_ratio.den);
-            }
-            if(av_log_get_level() >= AV_LOG_DEBUG){
-                int g= ff_gcd(enc->time_base.num, enc->time_base.den);
-                snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     ", %d/%d",
-                     enc->time_base.num/g, enc->time_base.den/g);
-            }
-        }
-        if (encode) {
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     ", q=%d-%d", enc->qmin, enc->qmax);
-        }
-        bitrate = enc->bit_rate;
-        break;
-    case CODEC_TYPE_AUDIO:
-        snprintf(buf, buf_size,
-                 "Audio: %s",
-                 codec_name);
-        if (enc->sample_rate) {
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     ", %d Hz", enc->sample_rate);
-        }
-        av_strlcat(buf, ", ", buf_size);
-        avcodec_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout);
-        if (enc->sample_fmt != SAMPLE_FMT_NONE) {
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     ", %s", avcodec_get_sample_fmt_name(enc->sample_fmt));
-        }
-
-        /* for PCM codecs, compute bitrate directly */
-        switch(enc->codec_id) {
-        case CODEC_ID_PCM_F64BE:
-        case CODEC_ID_PCM_F64LE:
-            bitrate = enc->sample_rate * enc->channels * 64;
-            break;
-        case CODEC_ID_PCM_S32LE:
-        case CODEC_ID_PCM_S32BE:
-        case CODEC_ID_PCM_U32LE:
-        case CODEC_ID_PCM_U32BE:
-        case CODEC_ID_PCM_F32BE:
-        case CODEC_ID_PCM_F32LE:
-            bitrate = enc->sample_rate * enc->channels * 32;
-            break;
-        case CODEC_ID_PCM_S24LE:
-        case CODEC_ID_PCM_S24BE:
-        case CODEC_ID_PCM_U24LE:
-        case CODEC_ID_PCM_U24BE:
-        case CODEC_ID_PCM_S24DAUD:
-            bitrate = enc->sample_rate * enc->channels * 24;
-            break;
-        case CODEC_ID_PCM_S16LE:
-        case CODEC_ID_PCM_S16BE:
-        case CODEC_ID_PCM_S16LE_PLANAR:
-        case CODEC_ID_PCM_U16LE:
-        case CODEC_ID_PCM_U16BE:
-            bitrate = enc->sample_rate * enc->channels * 16;
-            break;
-        case CODEC_ID_PCM_S8:
-        case CODEC_ID_PCM_U8:
-        case CODEC_ID_PCM_ALAW:
-        case CODEC_ID_PCM_MULAW:
-        case CODEC_ID_PCM_ZORK:
-            bitrate = enc->sample_rate * enc->channels * 8;
-            break;
-        default:
-            bitrate = enc->bit_rate;
-            break;
-        }
-        break;
-    case CODEC_TYPE_DATA:
-        snprintf(buf, buf_size, "Data: %s", codec_name);
-        bitrate = enc->bit_rate;
-        break;
-    case CODEC_TYPE_SUBTITLE:
-        snprintf(buf, buf_size, "Subtitle: %s", codec_name);
-        bitrate = enc->bit_rate;
-        break;
-    case CODEC_TYPE_ATTACHMENT:
-        snprintf(buf, buf_size, "Attachment: %s", codec_name);
-        bitrate = enc->bit_rate;
-        break;
-    default:
-        snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
-        return;
-    }
-    if (encode) {
-        if (enc->flags & CODEC_FLAG_PASS1)
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     ", pass 1");
-        if (enc->flags & CODEC_FLAG_PASS2)
-            snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                     ", pass 2");
-    }
-    if (bitrate != 0) {
-        snprintf(buf + strlen(buf), buf_size - strlen(buf),
-                 ", %d kb/s", bitrate / 1000);
-    }
-}
-
-unsigned avcodec_version( void )
-{
-  return LIBAVCODEC_VERSION_INT;
-}
-
-void avcodec_init(void)
-{
-    static int initialized = 0;
-
-    if (initialized != 0)
-        return;
-    initialized = 1;
-
-    dsputil_static_init();
-}
-
-void avcodec_flush_buffers(AVCodecContext *avctx)
-{
-    if(avctx->codec->flush)
-        avctx->codec->flush(avctx);
-}
-
-void avcodec_default_free_buffers(AVCodecContext *s){
-    int i, j;
-
-    if(s->internal_buffer==NULL) return;
-
-    for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
-        InternalBuffer *buf= &((InternalBuffer*)s->internal_buffer)[i];
-        for(j=0; j<4; j++){
-            av_freep(&buf->base[j]);
-            buf->data[j]= NULL;
-        }
-    }
-    av_freep(&s->internal_buffer);
-
-    s->internal_buffer_count=0;
-}
-
-char av_get_pict_type_char(int pict_type){
-    switch(pict_type){
-    case FF_I_TYPE: return 'I';
-    case FF_P_TYPE: return 'P';
-    case FF_B_TYPE: return 'B';
-    case FF_S_TYPE: return 'S';
-    case FF_SI_TYPE:return 'i';
-    case FF_SP_TYPE:return 'p';
-    case FF_BI_TYPE:return 'b';
-    default:        return '?';
-    }
-}
-
-int av_get_bits_per_sample(enum CodecID codec_id){
-    switch(codec_id){
-    case CODEC_ID_ADPCM_SBPRO_2:
-        return 2;
-    case CODEC_ID_ADPCM_SBPRO_3:
-        return 3;
-    case CODEC_ID_ADPCM_SBPRO_4:
-    case CODEC_ID_ADPCM_CT:
-        return 4;
-    case CODEC_ID_PCM_ALAW:
-    case CODEC_ID_PCM_MULAW:
-    case CODEC_ID_PCM_S8:
-    case CODEC_ID_PCM_U8:
-    case CODEC_ID_PCM_ZORK:
-        return 8;
-    case CODEC_ID_PCM_S16BE:
-    case CODEC_ID_PCM_S16LE:
-    case CODEC_ID_PCM_S16LE_PLANAR:
-    case CODEC_ID_PCM_U16BE:
-    case CODEC_ID_PCM_U16LE:
-        return 16;
-    case CODEC_ID_PCM_S24DAUD:
-    case CODEC_ID_PCM_S24BE:
-    case CODEC_ID_PCM_S24LE:
-    case CODEC_ID_PCM_U24BE:
-    case CODEC_ID_PCM_U24LE:
-        return 24;
-    case CODEC_ID_PCM_S32BE:
-    case CODEC_ID_PCM_S32LE:
-    case CODEC_ID_PCM_U32BE:
-    case CODEC_ID_PCM_U32LE:
-    case CODEC_ID_PCM_F32BE:
-    case CODEC_ID_PCM_F32LE:
-        return 32;
-    case CODEC_ID_PCM_F64BE:
-    case CODEC_ID_PCM_F64LE:
-        return 64;
-    default:
-        return 0;
-    }
-}
-
-int av_get_bits_per_sample_format(enum SampleFormat sample_fmt) {
-    switch (sample_fmt) {
-    case SAMPLE_FMT_U8:
-        return 8;
-    case SAMPLE_FMT_S16:
-        return 16;
-    case SAMPLE_FMT_S32:
-    case SAMPLE_FMT_FLT:
-        return 32;
-    case SAMPLE_FMT_DBL:
-        return 64;
-    default:
-        return 0;
-    }
-}
-
-#if !defined(HAVE_THREADS)
-int avcodec_thread_init(AVCodecContext *s, int thread_count){
-    return -1;
-}
-#endif
-
-unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
-{
-    unsigned int n = 0;
-
-    while(v >= 0xff) {
-        *s++ = 0xff;
-        v -= 0xff;
-        n++;
-    }
-    *s = v;
-    n++;
-    return n;
-}
-
-/* Wrapper to work around the lack of mkstemp() on mingw/cygin.
- * Also, tries to create file in /tmp first, if possible.
- * *prefix can be a character constant; *filename will be allocated internally.
- * Returns file descriptor of opened file (or -1 on error)
- * and opened file name in **filename. */
-int av_tempfile(char *prefix, char **filename) {
-    int fd=-1;
-#if !defined(HAVE_MKSTEMP)
-    *filename = tempnam(".", prefix);
-#else
-    size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
-    *filename = av_malloc(len);
-#endif
-    /* -----common section-----*/
-    if (*filename == NULL) {
-        av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n");
-        return -1;
-    }
-#if !defined(HAVE_MKSTEMP)
-    fd = open(*filename, O_RDWR | O_BINARY | O_CREAT, 0444);
-#else
-    snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
-    fd = mkstemp(*filename);
-    if (fd < 0) {
-        snprintf(*filename, len, "./%sXXXXXX", prefix);
-        fd = mkstemp(*filename);
-    }
-#endif
-    /* -----common section-----*/
-    if (fd < 0) {
-        av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename);
-        return -1;
-    }
-    return fd; /* success */
-}
-
-typedef struct {
-    const char *abbr;
-    int width, height;
-} VideoFrameSizeAbbr;
-
-typedef struct {
-    const char *abbr;
-    int rate_num, rate_den;
-} VideoFrameRateAbbr;
-
-static const VideoFrameSizeAbbr video_frame_size_abbrs[] = {
-    { "ntsc",      720, 480 },
-    { "pal",       720, 576 },
-    { "qntsc",     352, 240 }, /* VCD compliant NTSC */
-    { "qpal",      352, 288 }, /* VCD compliant PAL */
-    { "sntsc",     640, 480 }, /* square pixel NTSC */
-    { "spal",      768, 576 }, /* square pixel PAL */
-    { "film",      352, 240 },
-    { "ntsc-film", 352, 240 },
-    { "sqcif",     128,  96 },
-    { "qcif",      176, 144 },
-    { "cif",       352, 288 },
-    { "4cif",      704, 576 },
-    { "qqvga",     160, 120 },
-    { "qvga",      320, 240 },
-    { "vga",       640, 480 },
-    { "svga",      800, 600 },
-    { "xga",      1024, 768 },
-    { "uxga",     1600,1200 },
-    { "qxga",     2048,1536 },
-    { "sxga",     1280,1024 },
-    { "qsxga",    2560,2048 },
-    { "hsxga",    5120,4096 },
-    { "wvga",      852, 480 },
-    { "wxga",     1366, 768 },
-    { "wsxga",    1600,1024 },
-    { "wuxga",    1920,1200 },
-    { "woxga",    2560,1600 },
-    { "wqsxga",   3200,2048 },
-    { "wquxga",   3840,2400 },
-    { "whsxga",   6400,4096 },
-    { "whuxga",   7680,4800 },
-    { "cga",       320, 200 },
-    { "ega",       640, 350 },
-    { "hd480",     852, 480 },
-    { "hd720",    1280, 720 },
-    { "hd1080",   1920,1080 },
-};
-
-static const VideoFrameRateAbbr video_frame_rate_abbrs[]= {
-    { "ntsc",      30000, 1001 },
-    { "pal",          25,    1 },
-    { "qntsc",     30000, 1001 }, /* VCD compliant NTSC */
-    { "qpal",         25,    1 }, /* VCD compliant PAL */
-    { "sntsc",     30000, 1001 }, /* square pixel NTSC */
-    { "spal",         25,    1 }, /* square pixel PAL */
-    { "film",         24,    1 },
-    { "ntsc-film", 24000, 1001 },
-};
-
-int av_parse_video_frame_size(int *width_ptr, int *height_ptr, const char *str)
-{
-    int i;
-    int n = FF_ARRAY_ELEMS(video_frame_size_abbrs);
-    const char *p;
-    int frame_width = 0, frame_height = 0;
-
-    for(i=0;i<n;i++) {
-        if (!strcmp(video_frame_size_abbrs[i].abbr, str)) {
-            frame_width = video_frame_size_abbrs[i].width;
-            frame_height = video_frame_size_abbrs[i].height;
-            break;
-        }
-    }
-    if (i == n) {
-        p = str;
-        frame_width = strtol(p, (char **)&p, 10);
-        if (*p)
-            p++;
-        frame_height = strtol(p, (char **)&p, 10);
-    }
-    if (frame_width <= 0 || frame_height <= 0)
-        return -1;
-    *width_ptr = frame_width;
-    *height_ptr = frame_height;
-    return 0;
-}
-
-int av_parse_video_frame_rate(AVRational *frame_rate, const char *arg)
-{
-    int i;
-    int n = FF_ARRAY_ELEMS(video_frame_rate_abbrs);
-    char* cp;
-
-    /* First, we check our abbreviation table */
-    for (i = 0; i < n; ++i)
-         if (!strcmp(video_frame_rate_abbrs[i].abbr, arg)) {
-             frame_rate->num = video_frame_rate_abbrs[i].rate_num;
-             frame_rate->den = video_frame_rate_abbrs[i].rate_den;
-             return 0;
-         }
-
-    /* Then, we try to parse it as fraction */
-    cp = strchr(arg, '/');
-    if (!cp)
-        cp = strchr(arg, ':');
-    if (cp) {
-        char* cpp;
-        frame_rate->num = strtol(arg, &cpp, 10);
-        if (cpp != arg || cpp == cp)
-            frame_rate->den = strtol(cp+1, &cpp, 10);
-        else
-           frame_rate->num = 0;
-    }
-    else {
-        /* Finally we give up and parse it as double */
-        AVRational time_base = av_d2q(strtod(arg, 0), 1001000);
-        frame_rate->den = time_base.den;
-        frame_rate->num = time_base.num;
-    }
-    if (!frame_rate->num || !frame_rate->den)
-        return -1;
-    else
-        return 0;
-}
-
-void ff_log_missing_feature(void *avc, const char *feature, int want_sample)
-{
-    av_log(avc, AV_LOG_WARNING, "%s not implemented. Update your FFmpeg "
-            "version to the newest one from SVN. If the problem still "
-            "occurs, it means that your file has a feature which has not "
-            "been implemented.", feature);
-    if(want_sample)
-        av_log(avc, AV_LOG_WARNING, " If you want to help, upload a sample "
-                "of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ "
-                "and contact the ffmpeg-devel mailing list.");
-    av_log(avc, AV_LOG_WARNING, "\n");
-}

Modified: trunk/libavcodec/utils.c
==============================================================================
--- trunk/libavcodec/utils.c	Sat Jan 10 03:45:07 2009	(r16513)
+++ trunk/libavcodec/utils.c	Sat Jan 10 10:53:21 2009	(r16514)
@@ -383,428 +383,6 @@ enum PixelFormat avcodec_default_get_for
     return fmt[0];
 }
 
-static const char* context_to_name(void* ptr) {
-    AVCodecContext *avc= ptr;
-
-    if(avc && avc->codec && avc->codec->name)
-        return avc->codec->name;
-    else
-        return "NULL";
-}
-
-#define OFFSET(x) offsetof(AVCodecContext,x)
-#define DEFAULT 0 //should be NAN but it does not work as it is not a constant in glibc as required by ANSI/ISO C
-//these names are too long to be readable
-#define V AV_OPT_FLAG_VIDEO_PARAM
-#define A AV_OPT_FLAG_AUDIO_PARAM
-#define S AV_OPT_FLAG_SUBTITLE_PARAM
-#define E AV_OPT_FLAG_ENCODING_PARAM
-#define D AV_OPT_FLAG_DECODING_PARAM
-
-#define AV_CODEC_DEFAULT_BITRATE 200*1000
-
-static const AVOption options[]={
-{"b", "set bitrate (in bits/s)", OFFSET(bit_rate), FF_OPT_TYPE_INT, AV_CODEC_DEFAULT_BITRATE, INT_MIN, INT_MAX, V|E},
-{"ab", "set bitrate (in bits/s)", OFFSET(bit_rate), FF_OPT_TYPE_INT, 64*1000, INT_MIN, INT_MAX, A|E},
-{"bt", "set video bitrate tolerance (in bits/s)", OFFSET(bit_rate_tolerance), FF_OPT_TYPE_INT, AV_CODEC_DEFAULT_BITRATE*20, 1, INT_MAX, V|E},
-{"flags", NULL, OFFSET(flags), FF_OPT_TYPE_FLAGS, DEFAULT, 0, UINT_MAX, V|A|E|D, "flags"},
-{"mv4", "use four motion vector by macroblock (mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_4MV, INT_MIN, INT_MAX, V|E, "flags"},
-{"obmc", "use overlapped block motion compensation (h263+)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_OBMC, INT_MIN, INT_MAX, V|E, "flags"},
-{"qpel", "use 1/4 pel motion compensation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QPEL, INT_MIN, INT_MAX, V|E, "flags"},
-{"loop", "use loop filter", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOOP_FILTER, INT_MIN, INT_MAX, V|E, "flags"},
-{"qscale", "use fixed qscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QSCALE, INT_MIN, INT_MAX, 0, "flags"},
-{"gmc", "use gmc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GMC, INT_MIN, INT_MAX, V|E, "flags"},
-{"mv0", "always try a mb with mv=<0,0>", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_MV0, INT_MIN, INT_MAX, V|E, "flags"},
-{"part", "use data partitioning", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PART, INT_MIN, INT_MAX, V|E, "flags"},
-{"input_preserved", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INPUT_PRESERVED, INT_MIN, INT_MAX, 0, "flags"},
-{"pass1", "use internal 2pass ratecontrol in first  pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS1, INT_MIN, INT_MAX, 0, "flags"},
-{"pass2", "use internal 2pass ratecontrol in second pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS2, INT_MIN, INT_MAX, 0, "flags"},
-{"extern_huff", "use external huffman table (for mjpeg)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EXTERN_HUFF, INT_MIN, INT_MAX, 0, "flags"},
-{"gray", "only decode/encode grayscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GRAY, INT_MIN, INT_MAX, V|E|D, "flags"},
-{"emu_edge", "don't draw edges", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EMU_EDGE, INT_MIN, INT_MAX, 0, "flags"},
-{"psnr", "error[?] variables will be set during encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PSNR, INT_MIN, INT_MAX, V|E, "flags"},
-{"truncated", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_TRUNCATED, INT_MIN, INT_MAX, 0, "flags"},
-{"naq", "normalize adaptive quantization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_NORMALIZE_AQP, INT_MIN, INT_MAX, V|E, "flags"},
-{"ildct", "use interlaced dct", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_DCT, INT_MIN, INT_MAX, V|E, "flags"},
-{"low_delay", "force low delay", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOW_DELAY, INT_MIN, INT_MAX, V|D|E, "flags"},
-{"alt", "enable alternate scantable (mpeg2/mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_ALT_SCAN, INT_MIN, INT_MAX, V|E, "flags"},
-{"global_header", "place global headers in extradata instead of every keyframe", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GLOBAL_HEADER, INT_MIN, INT_MAX, V|A|E, "flags"},
-{"bitexact", "use only bitexact stuff (except (i)dct)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_BITEXACT, INT_MIN, INT_MAX, A|V|S|D|E, "flags"},
-{"aic", "h263 advanced intra coding / mpeg4 ac prediction", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_AC_PRED, INT_MIN, INT_MAX, V|E, "flags"},
-{"umv", "use unlimited motion vectors", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_UMV, INT_MIN, INT_MAX, V|E, "flags"},
-{"cbp", "use rate distortion optimization for cbp", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CBP_RD, INT_MIN, INT_MAX, V|E, "flags"},
-{"qprd", "use rate distortion optimization for qp selection", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QP_RD, INT_MIN, INT_MAX, V|E, "flags"},
-{"aiv", "h263 alternative inter vlc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_AIV, INT_MIN, INT_MAX, V|E, "flags"},
-{"slice", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_SLICE_STRUCT, INT_MIN, INT_MAX, V|E, "flags"},
-{"ilme", "interlaced motion estimation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_ME, INT_MIN, INT_MAX, V|E, "flags"},
-{"scan_offset", "will reserve space for svcd scan offset user data", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_SVCD_SCAN_OFFSET, INT_MIN, INT_MAX, V|E, "flags"},
-{"cgop", "closed gop", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CLOSED_GOP, INT_MIN, INT_MAX, V|E, "flags"},
-{"fast", "allow non spec compliant speedup tricks", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FAST, INT_MIN, INT_MAX, V|E, "flags2"},
-{"sgop", "strictly enforce gop size", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_STRICT_GOP, INT_MIN, INT_MAX, V|E, "flags2"},
-{"noout", "skip bitstream encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_NO_OUTPUT, INT_MIN, INT_MAX, V|E, "flags2"},
-{"local_header", "place global headers at every keyframe instead of in extradata", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_LOCAL_HEADER, INT_MIN, INT_MAX, V|E, "flags2"},
-{"sub_id", NULL, OFFSET(sub_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"me_method", "set motion estimation method", OFFSET(me_method), FF_OPT_TYPE_INT, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method"},
-{"zero", "zero motion estimation (fastest)", 0, FF_OPT_TYPE_CONST, ME_ZERO, INT_MIN, INT_MAX, V|E, "me_method" },
-{"full", "full motion estimation (slowest)", 0, FF_OPT_TYPE_CONST, ME_FULL, INT_MIN, INT_MAX, V|E, "me_method" },
-{"epzs", "EPZS motion estimation (default)", 0, FF_OPT_TYPE_CONST, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method" },
-{"esa", "esa motion estimation (alias for full)", 0, FF_OPT_TYPE_CONST, ME_FULL, INT_MIN, INT_MAX, V|E, "me_method" },
-{"tesa", "tesa motion estimation", 0, FF_OPT_TYPE_CONST, ME_TESA, INT_MIN, INT_MAX, V|E, "me_method" },
-{"dia", "dia motion estimation (alias for epzs)", 0, FF_OPT_TYPE_CONST, ME_EPZS, INT_MIN, INT_MAX, V|E, "me_method" },
-{"log", "log motion estimation", 0, FF_OPT_TYPE_CONST, ME_LOG, INT_MIN, INT_MAX, V|E, "me_method" },
-{"phods", "phods motion estimation", 0, FF_OPT_TYPE_CONST, ME_PHODS, INT_MIN, INT_MAX, V|E, "me_method" },
-{"x1", "X1 motion estimation", 0, FF_OPT_TYPE_CONST, ME_X1, INT_MIN, INT_MAX, V|E, "me_method" },
-{"hex", "hex motion estimation", 0, FF_OPT_TYPE_CONST, ME_HEX, INT_MIN, INT_MAX, V|E, "me_method" },
-{"umh", "umh motion estimation", 0, FF_OPT_TYPE_CONST, ME_UMH, INT_MIN, INT_MAX, V|E, "me_method" },
-{"iter", "iter motion estimation", 0, FF_OPT_TYPE_CONST, ME_ITER, INT_MIN, INT_MAX, V|E, "me_method" },
-{"extradata_size", NULL, OFFSET(extradata_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"time_base", NULL, OFFSET(time_base), FF_OPT_TYPE_RATIONAL, DEFAULT, INT_MIN, INT_MAX},
-{"g", "set the group of picture size", OFFSET(gop_size), FF_OPT_TYPE_INT, 12, INT_MIN, INT_MAX, V|E},
-{"rate_emu", "frame rate emulation", OFFSET(rate_emu), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"ar", "set audio sampling rate (in Hz)", OFFSET(sample_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"ac", "set number of audio channels", OFFSET(channels), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"cutoff", "set cutoff bandwidth", OFFSET(cutoff), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|E},
-{"frame_size", NULL, OFFSET(frame_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|E},
-{"frame_number", NULL, OFFSET(frame_number), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"real_pict_num", NULL, OFFSET(real_pict_num), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"delay", NULL, OFFSET(delay), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"qcomp", "video quantizer scale compression (VBR)", OFFSET(qcompress), FF_OPT_TYPE_FLOAT, 0.5, -FLT_MAX, FLT_MAX, V|E},
-{"qblur", "video quantizer scale blur (VBR)", OFFSET(qblur), FF_OPT_TYPE_FLOAT, 0.5, 0, FLT_MAX, V|E},
-{"qmin", "min video quantizer scale (VBR)", OFFSET(qmin), FF_OPT_TYPE_INT, 2, 1, 51, V|E},
-{"qmax", "max video quantizer scale (VBR)", OFFSET(qmax), FF_OPT_TYPE_INT, 31, 1, 51, V|E},
-{"qdiff", "max difference between the quantizer scale (VBR)", OFFSET(max_qdiff), FF_OPT_TYPE_INT, 3, INT_MIN, INT_MAX, V|E},
-{"bf", "use 'frames' B frames", OFFSET(max_b_frames), FF_OPT_TYPE_INT, DEFAULT, 0, FF_MAX_B_FRAMES, V|E},
-{"b_qfactor", "qp factor between p and b frames", OFFSET(b_quant_factor), FF_OPT_TYPE_FLOAT, 1.25, -FLT_MAX, FLT_MAX, V|E},
-{"rc_strategy", "ratecontrol method", OFFSET(rc_strategy), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"b_strategy", "strategy to choose between I/P/B-frames", OFFSET(b_frame_strategy), FF_OPT_TYPE_INT, 0, INT_MIN, INT_MAX, V|E},
-{"hurry_up", NULL, OFFSET(hurry_up), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
-{"ps", "rtp payload size in bits", OFFSET(rtp_payload_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"mv_bits", NULL, OFFSET(mv_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"header_bits", NULL, OFFSET(header_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"i_tex_bits", NULL, OFFSET(i_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"p_tex_bits", NULL, OFFSET(p_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"i_count", NULL, OFFSET(i_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"p_count", NULL, OFFSET(p_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"skip_count", NULL, OFFSET(skip_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"misc_bits", NULL, OFFSET(misc_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"frame_bits", NULL, OFFSET(frame_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"codec_tag", NULL, OFFSET(codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"bug", "workaround not auto detected encoder bugs", OFFSET(workaround_bugs), FF_OPT_TYPE_FLAGS, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"},
-{"autodetect", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"},
-{"old_msmpeg4", "some old lavc generated msmpeg4v3 files (no autodetection)", 0, FF_OPT_TYPE_CONST, FF_BUG_OLD_MSMPEG4, INT_MIN, INT_MAX, V|D, "bug"},
-{"xvid_ilace", "Xvid interlacing bug (autodetected if fourcc==XVIX)", 0, FF_OPT_TYPE_CONST, FF_BUG_XVID_ILACE, INT_MIN, INT_MAX, V|D, "bug"},
-{"ump4", "(autodetected if fourcc==UMP4)", 0, FF_OPT_TYPE_CONST, FF_BUG_UMP4, INT_MIN, INT_MAX, V|D, "bug"},
-{"no_padding", "padding bug (autodetected)", 0, FF_OPT_TYPE_CONST, FF_BUG_NO_PADDING, INT_MIN, INT_MAX, V|D, "bug"},
-{"amv", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AMV, INT_MIN, INT_MAX, V|D, "bug"},
-{"ac_vlc", "illegal vlc bug (autodetected per fourcc)", 0, FF_OPT_TYPE_CONST, FF_BUG_AC_VLC, INT_MIN, INT_MAX, V|D, "bug"},
-{"qpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
-{"std_qpel", "old standard qpel (autodetected per fourcc/version)", 0, FF_OPT_TYPE_CONST, FF_BUG_STD_QPEL, INT_MIN, INT_MAX, V|D, "bug"},
-{"qpel_chroma2", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA2, INT_MIN, INT_MAX, V|D, "bug"},
-{"direct_blocksize", "direct-qpel-blocksize bug (autodetected per fourcc/version)", 0, FF_OPT_TYPE_CONST, FF_BUG_DIRECT_BLOCKSIZE, INT_MIN, INT_MAX, V|D, "bug"},
-{"edge", "edge padding bug (autodetected per fourcc/version)", 0, FF_OPT_TYPE_CONST, FF_BUG_EDGE, INT_MIN, INT_MAX, V|D, "bug"},
-{"hpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_HPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
-{"dc_clip", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_DC_CLIP, INT_MIN, INT_MAX, V|D, "bug"},
-{"ms", "workaround various bugs in microsofts broken decoders", 0, FF_OPT_TYPE_CONST, FF_BUG_MS, INT_MIN, INT_MAX, V|D, "bug"},
-{"lelim", "single coefficient elimination threshold for luminance (negative values also consider dc coefficient)", OFFSET(luma_elim_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"celim", "single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)", OFFSET(chroma_elim_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"strict", "how strictly to follow the standards", OFFSET(strict_std_compliance), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|V|D|E, "strict"},
-{"very", "strictly conform to a older more strict version of the spec or reference software", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_VERY_STRICT, INT_MIN, INT_MAX, V|D|E, "strict"},
-{"strict", "strictly conform to all the things in the spec no matter what consequences", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_STRICT, INT_MIN, INT_MAX, V|D|E, "strict"},
-{"normal", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_NORMAL, INT_MIN, INT_MAX, V|D|E, "strict"},
-{"inofficial", "allow inofficial extensions", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_INOFFICIAL, INT_MIN, INT_MAX, V|D|E, "strict"},
-{"experimental", "allow non standardized experimental things", 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_EXPERIMENTAL, INT_MIN, INT_MAX, V|D|E, "strict"},
-{"b_qoffset", "qp offset between P and B frames", OFFSET(b_quant_offset), FF_OPT_TYPE_FLOAT, 1.25, -FLT_MAX, FLT_MAX, V|E},
-{"er", "set error detection aggressivity", OFFSET(error_recognition), FF_OPT_TYPE_INT, FF_ER_CAREFUL, INT_MIN, INT_MAX, A|V|D, "er"},
-{"careful", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_CAREFUL, INT_MIN, INT_MAX, V|D, "er"},
-{"compliant", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_COMPLIANT, INT_MIN, INT_MAX, V|D, "er"},
-{"aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
-{"very_aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_VERY_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
-{"has_b_frames", NULL, OFFSET(has_b_frames), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"block_align", NULL, OFFSET(block_align), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"parse_only", NULL, OFFSET(parse_only), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"mpeg_quant", "use MPEG quantizers instead of H.263", OFFSET(mpeg_quant), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"stats_out", NULL, OFFSET(stats_out), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
-{"stats_in", NULL, OFFSET(stats_in), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
-{"qsquish", "how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function)", OFFSET(rc_qsquish), FF_OPT_TYPE_FLOAT, DEFAULT, 0, 99, V|E},
-{"rc_qmod_amp", "experimental quantizer modulation", OFFSET(rc_qmod_amp), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
-{"rc_qmod_freq", "experimental quantizer modulation", OFFSET(rc_qmod_freq), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"rc_override_count", NULL, OFFSET(rc_override_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"rc_eq", "set rate control equation", OFFSET(rc_eq), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX, V|E},
-{"maxrate", "set max video bitrate tolerance (in bits/s)", OFFSET(rc_max_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"minrate", "set min video bitrate tolerance (in bits/s)", OFFSET(rc_min_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"bufsize", "set ratecontrol buffer size (in bits)", OFFSET(rc_buffer_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|V|E},
-{"rc_buf_aggressivity", "currently useless", OFFSET(rc_buffer_aggressivity), FF_OPT_TYPE_FLOAT, 1.0, -FLT_MAX, FLT_MAX, V|E},
-{"i_qfactor", "qp factor between P and I frames", OFFSET(i_quant_factor), FF_OPT_TYPE_FLOAT, -0.8, -FLT_MAX, FLT_MAX, V|E},
-{"i_qoffset", "qp offset between P and I frames", OFFSET(i_quant_offset), FF_OPT_TYPE_FLOAT, 0.0, -FLT_MAX, FLT_MAX, V|E},
-{"rc_init_cplx", "initial complexity for 1-pass encoding", OFFSET(rc_initial_cplx), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
-{"dct", "DCT algorithm", OFFSET(dct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E, "dct"},
-{"auto", "autoselect a good one (default)", 0, FF_OPT_TYPE_CONST, FF_DCT_AUTO, INT_MIN, INT_MAX, V|E, "dct"},
-{"fastint", "fast integer", 0, FF_OPT_TYPE_CONST, FF_DCT_FASTINT, INT_MIN, INT_MAX, V|E, "dct"},
-{"int", "accurate integer", 0, FF_OPT_TYPE_CONST, FF_DCT_INT, INT_MIN, INT_MAX, V|E, "dct"},
-{"mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MMX, INT_MIN, INT_MAX, V|E, "dct"},
-{"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MLIB, INT_MIN, INT_MAX, V|E, "dct"},
-{"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_ALTIVEC, INT_MIN, INT_MAX, V|E, "dct"},
-{"faan", "floating point AAN DCT", 0, FF_OPT_TYPE_CONST, FF_DCT_FAAN, INT_MIN, INT_MAX, V|E, "dct"},
-{"lumi_mask", "compresses bright areas stronger than medium ones", OFFSET(lumi_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
-{"tcplx_mask", "temporal complexity masking", OFFSET(temporal_cplx_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
-{"scplx_mask", "spatial complexity masking", OFFSET(spatial_cplx_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
-{"p_mask", "inter masking", OFFSET(p_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
-{"dark_mask", "compresses dark areas stronger than medium ones", OFFSET(dark_masking), FF_OPT_TYPE_FLOAT, 0, -FLT_MAX, FLT_MAX, V|E},
-{"idct", "select IDCT implementation", OFFSET(idct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E|D, "idct"},
-{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_AUTO, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_INT, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"simple", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLE, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"simplemmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"libmpeg2mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_LIBMPEG2MMX, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"ps2", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_PS2, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_MLIB, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"arm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ARM, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ALTIVEC, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"sh4", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SH4, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"simplearm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARM, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"simplearmv5te", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARMV5TE, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"simplearmv6", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARMV6, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"simpleneon", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLENEON, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"h264", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_H264, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"vp3", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_VP3, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"ipp", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_IPP, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"xvidmmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_XVIDMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
-{"faani", "floating point AAN IDCT", 0, FF_OPT_TYPE_CONST, FF_IDCT_FAAN, INT_MIN, INT_MAX, V|D|E, "idct"},
-{"slice_count", NULL, OFFSET(slice_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"ec", "set error concealment strategy", OFFSET(error_concealment), FF_OPT_TYPE_FLAGS, 3, INT_MIN, INT_MAX, V|D, "ec"},
-{"guess_mvs", "iterative motion vector (MV) search (slow)", 0, FF_OPT_TYPE_CONST, FF_EC_GUESS_MVS, INT_MIN, INT_MAX, V|D, "ec"},
-{"deblock", "use strong deblock filter for damaged MBs", 0, FF_OPT_TYPE_CONST, FF_EC_DEBLOCK, INT_MIN, INT_MAX, V|D, "ec"},
-{"bits_per_coded_sample", NULL, OFFSET(bits_per_coded_sample), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"pred", "prediction method", OFFSET(prediction_method), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "pred"},
-{"left", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_LEFT, INT_MIN, INT_MAX, V|E, "pred"},
-{"plane", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_PLANE, INT_MIN, INT_MAX, V|E, "pred"},
-{"median", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_MEDIAN, INT_MIN, INT_MAX, V|E, "pred"},
-{"aspect", "sample aspect ratio", OFFSET(sample_aspect_ratio), FF_OPT_TYPE_RATIONAL, DEFAULT, 0, 10, V|E},
-{"debug", "print specific debug info", OFFSET(debug), FF_OPT_TYPE_FLAGS, DEFAULT, 0, INT_MAX, V|A|S|E|D, "debug"},
-{"pict", "picture info", 0, FF_OPT_TYPE_CONST, FF_DEBUG_PICT_INFO, INT_MIN, INT_MAX, V|D, "debug"},
-{"rc", "rate control", 0, FF_OPT_TYPE_CONST, FF_DEBUG_RC, INT_MIN, INT_MAX, V|E, "debug"},
-{"bitstream", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BITSTREAM, INT_MIN, INT_MAX, V|D, "debug"},
-{"mb_type", "macroblock (MB) type", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
-{"qp", "per-block quantization parameter (QP)", 0, FF_OPT_TYPE_CONST, FF_DEBUG_QP, INT_MIN, INT_MAX, V|D, "debug"},
-{"mv", "motion vector", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MV, INT_MIN, INT_MAX, V|D, "debug"},
-{"dct_coeff", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_DCT_COEFF, INT_MIN, INT_MAX, V|D, "debug"},
-{"skip", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_SKIP, INT_MIN, INT_MAX, V|D, "debug"},
-{"startcode", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_STARTCODE, INT_MIN, INT_MAX, V|D, "debug"},
-{"pts", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_PTS, INT_MIN, INT_MAX, V|D, "debug"},
-{"er", "error recognition", 0, FF_OPT_TYPE_CONST, FF_DEBUG_ER, INT_MIN, INT_MAX, V|D, "debug"},
-{"mmco", "memory management control operations (H.264)", 0, FF_OPT_TYPE_CONST, FF_DEBUG_MMCO, INT_MIN, INT_MAX, V|D, "debug"},
-{"bugs", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BUGS, INT_MIN, INT_MAX, V|D, "debug"},
-{"vis_qp", "visualize quantization parameter (QP), lower QP are tinted greener", 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_QP, INT_MIN, INT_MAX, V|D, "debug"},
-{"vis_mb_type", "visualize block types", 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
-{"buffers", "picture buffer allocations", 0, FF_OPT_TYPE_CONST, FF_DEBUG_BUFFERS, INT_MIN, INT_MAX, V|D, "debug"},
-{"vismv", "visualize motion vectors (MVs)", OFFSET(debug_mv), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|D, "debug_mv"},
-{"pf", "forward predicted MVs of P-frames", 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MV_P_FOR, INT_MIN, INT_MAX, V|D, "debug_mv"},
-{"bf", "forward predicted MVs of B-frames", 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MV_B_FOR, INT_MIN, INT_MAX, V|D, "debug_mv"},
-{"bb", "backward predicted MVs of B-frames", 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MV_B_BACK, INT_MIN, INT_MAX, V|D, "debug_mv"},
-{"mb_qmin", "obsolete, use qmin", OFFSET(mb_qmin), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"mb_qmax", "obsolete, use qmax", OFFSET(mb_qmax), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"cmp", "full pel me compare function", OFFSET(me_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"subcmp", "sub pel me compare function", OFFSET(me_sub_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"mbcmp", "macroblock compare function", OFFSET(mb_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"ildctcmp", "interlaced dct compare function", OFFSET(ildct_cmp), FF_OPT_TYPE_INT, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"dia_size", "diamond type & size for motion estimation", OFFSET(dia_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"last_pred", "amount of motion predictors from the previous frame", OFFSET(last_predictor_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"preme", "pre motion estimation", OFFSET(pre_me), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"precmp", "pre motion estimation compare function", OFFSET(me_pre_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"sad", "sum of absolute differences, fast (default)", 0, FF_OPT_TYPE_CONST, FF_CMP_SAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"sse", "sum of squared errors", 0, FF_OPT_TYPE_CONST, FF_CMP_SSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"satd", "sum of absolute Hadamard transformed differences", 0, FF_OPT_TYPE_CONST, FF_CMP_SATD, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"dct", "sum of absolute DCT transformed differences", 0, FF_OPT_TYPE_CONST, FF_CMP_DCT, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"psnr", "sum of squared quantization errors (avoid, low quality)", 0, FF_OPT_TYPE_CONST, FF_CMP_PSNR, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"bit", "number of bits needed for the block", 0, FF_OPT_TYPE_CONST, FF_CMP_BIT, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"rd", "rate distortion optimal, slow", 0, FF_OPT_TYPE_CONST, FF_CMP_RD, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"zero", "0", 0, FF_OPT_TYPE_CONST, FF_CMP_ZERO, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"vsad", "sum of absolute vertical differences", 0, FF_OPT_TYPE_CONST, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"vsse","sum of squared vertical differences", 0, FF_OPT_TYPE_CONST, FF_CMP_VSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"nsse", "noise preserving sum of squared differences", 0, FF_OPT_TYPE_CONST, FF_CMP_NSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
-#ifdef CONFIG_SNOW_ENCODER
-{"w53", "5/3 wavelet, only used in snow", 0, FF_OPT_TYPE_CONST, FF_CMP_W53, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"w97", "9/7 wavelet, only used in snow", 0, FF_OPT_TYPE_CONST, FF_CMP_W97, INT_MIN, INT_MAX, V|E, "cmp_func"},
-#endif
-{"dctmax", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_CHROMA, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"pre_dia_size", "diamond type & size for motion estimation pre-pass", OFFSET(pre_dia_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"subq", "sub pel motion estimation quality", OFFSET(me_subpel_quality), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
-{"dtg_active_format", NULL, OFFSET(dtg_active_format), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"me_range", "limit motion vectors range (1023 for DivX player)", OFFSET(me_range), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"ibias", "intra quant bias", OFFSET(intra_quant_bias), FF_OPT_TYPE_INT, FF_DEFAULT_QUANT_BIAS, INT_MIN, INT_MAX, V|E},
-{"pbias", "inter quant bias", OFFSET(inter_quant_bias), FF_OPT_TYPE_INT, FF_DEFAULT_QUANT_BIAS, INT_MIN, INT_MAX, V|E},
-{"color_table_id", NULL, OFFSET(color_table_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"internal_buffer_count", NULL, OFFSET(internal_buffer_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"global_quality", NULL, OFFSET(global_quality), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"coder", NULL, OFFSET(coder_type), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "coder"},
-{"vlc", "variable length coder / huffman coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_VLC, INT_MIN, INT_MAX, V|E, "coder"},
-{"ac", "arithmetic coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_AC, INT_MIN, INT_MAX, V|E, "coder"},
-{"raw", "raw (no encoding)", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_RAW, INT_MIN, INT_MAX, V|E, "coder"},
-{"rle", "run-length coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_RLE, INT_MIN, INT_MAX, V|E, "coder"},
-{"deflate", "deflate-based coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_DEFLATE, INT_MIN, INT_MAX, V|E, "coder"},
-{"context", "context model", OFFSET(context_model), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"slice_flags", NULL, OFFSET(slice_flags), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"xvmc_acceleration", NULL, OFFSET(xvmc_acceleration), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"mbd", "macroblock decision algorithm (high quality mode)", OFFSET(mb_decision), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "mbd"},
-{"simple", "use mbcmp (default)", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_SIMPLE, INT_MIN, INT_MAX, V|E, "mbd"},
-{"bits", "use fewest bits", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_BITS, INT_MIN, INT_MAX, V|E, "mbd"},
-{"rd", "use best rate distortion", 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_RD, INT_MIN, INT_MAX, V|E, "mbd"},
-{"stream_codec_tag", NULL, OFFSET(stream_codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"sc_threshold", "scene change threshold", OFFSET(scenechange_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"lmin", "min lagrange factor (VBR)", OFFSET(lmin), FF_OPT_TYPE_INT,  2*FF_QP2LAMBDA, 0, INT_MAX, V|E},
-{"lmax", "max lagrange factor (VBR)", OFFSET(lmax), FF_OPT_TYPE_INT, 31*FF_QP2LAMBDA, 0, INT_MAX, V|E},
-{"nr", "noise reduction", OFFSET(noise_reduction), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"rc_init_occupancy", "number of bits which should be loaded into the rc buffer before decoding starts", OFFSET(rc_initial_buffer_occupancy), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"inter_threshold", NULL, OFFSET(inter_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"flags2", NULL, OFFSET(flags2), FF_OPT_TYPE_FLAGS, CODEC_FLAG2_FASTPSKIP|CODEC_FLAG2_BIT_RESERVOIR, 0, UINT_MAX, V|A|E|D, "flags2"},
-{"error", NULL, OFFSET(error_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"antialias", "MP3 antialias algorithm", OFFSET(antialias_algo), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D, "aa"},
-{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_AUTO, INT_MIN, INT_MAX, V|D, "aa"},
-{"fastint", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FASTINT, INT_MIN, INT_MAX, V|D, "aa"},
-{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_INT, INT_MIN, INT_MAX, V|D, "aa"},
-{"float", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FLOAT, INT_MIN, INT_MAX, V|D, "aa"},
-{"qns", "quantizer noise shaping", OFFSET(quantizer_noise_shaping), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"threads", NULL, OFFSET(thread_count), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX, V|E|D},
-{"me_threshold", "motion estimaton threshold", OFFSET(me_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"mb_threshold", "macroblock threshold", OFFSET(mb_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"dc", "intra_dc_precision", OFFSET(intra_dc_precision), FF_OPT_TYPE_INT, 0, INT_MIN, INT_MAX, V|E},
-{"nssew", "nsse weight", OFFSET(nsse_weight), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
-{"skip_top", "number of macroblock rows at the top which are skipped", OFFSET(skip_top), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
-{"skip_bottom", "number of macroblock rows at the bottom which are skipped", OFFSET(skip_bottom), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
-{"profile", NULL, OFFSET(profile), FF_OPT_TYPE_INT, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
-{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
-{"aac_main", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_MAIN, INT_MIN, INT_MAX, A|E, "profile"},
-{"aac_low", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_LOW, INT_MIN, INT_MAX, A|E, "profile"},
-{"aac_ssr", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_SSR, INT_MIN, INT_MAX, A|E, "profile"},
-{"aac_ltp", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_AAC_LTP, INT_MIN, INT_MAX, A|E, "profile"},
-{"level", NULL, OFFSET(level), FF_OPT_TYPE_INT, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
-{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
-{"lowres", "decode at 1= 1/2, 2=1/4, 3=1/8 resolutions", OFFSET(lowres), FF_OPT_TYPE_INT, 0, 0, INT_MAX, V|D},
-{"skip_threshold", "frame skip threshold", OFFSET(frame_skip_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"skip_factor", "frame skip factor", OFFSET(frame_skip_factor), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"skip_exp", "frame skip exponent", OFFSET(frame_skip_exp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"skipcmp", "frame skip compare function", OFFSET(frame_skip_cmp), FF_OPT_TYPE_INT, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
-{"border_mask", "increases the quantizer for macroblocks close to borders", OFFSET(border_masking), FF_OPT_TYPE_FLOAT, DEFAULT, -FLT_MAX, FLT_MAX, V|E},
-{"mblmin", "min macroblock lagrange factor (VBR)", OFFSET(mb_lmin), FF_OPT_TYPE_INT, FF_QP2LAMBDA * 2, 1, FF_LAMBDA_MAX, V|E},
-{"mblmax", "max macroblock lagrange factor (VBR)", OFFSET(mb_lmax), FF_OPT_TYPE_INT, FF_QP2LAMBDA * 31, 1, FF_LAMBDA_MAX, V|E},
-{"mepc", "motion estimation bitrate penalty compensation (1.0 = 256)", OFFSET(me_penalty_compensation), FF_OPT_TYPE_INT, 256, INT_MIN, INT_MAX, V|E},
-{"skip_loop_filter", NULL, OFFSET(skip_loop_filter), FF_OPT_TYPE_INT, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
-{"skip_idct"       , NULL, OFFSET(skip_idct)       , FF_OPT_TYPE_INT, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
-{"skip_frame"      , NULL, OFFSET(skip_frame)      , FF_OPT_TYPE_INT, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
-{"none"            , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_NONE   , INT_MIN, INT_MAX, V|D, "avdiscard"},
-{"default"         , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_DEFAULT, INT_MIN, INT_MAX, V|D, "avdiscard"},
-{"noref"           , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_NONREF , INT_MIN, INT_MAX, V|D, "avdiscard"},
-{"bidir"           , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_BIDIR  , INT_MIN, INT_MAX, V|D, "avdiscard"},
-{"nokey"           , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_NONKEY , INT_MIN, INT_MAX, V|D, "avdiscard"},
-{"all"             , NULL, 0, FF_OPT_TYPE_CONST, AVDISCARD_ALL    , INT_MIN, INT_MAX, V|D, "avdiscard"},
-{"bidir_refine", "refine the two motion vectors used in bidirectional macroblocks", OFFSET(bidir_refine), FF_OPT_TYPE_INT, DEFAULT, 0, 4, V|E},
-{"brd_scale", "downscales frames for dynamic B-frame decision", OFFSET(brd_scale), FF_OPT_TYPE_INT, DEFAULT, 0, 10, V|E},
-{"crf", "enables constant quality mode, and selects the quality (x264)", OFFSET(crf), FF_OPT_TYPE_FLOAT, DEFAULT, 0, 51, V|E},
-{"cqp", "constant quantization parameter rate control method", OFFSET(cqp), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, V|E},
-{"keyint_min", "minimum interval between IDR-frames (x264)", OFFSET(keyint_min), FF_OPT_TYPE_INT, 25, INT_MIN, INT_MAX, V|E},
-{"refs", "reference frames to consider for motion compensation (Snow)", OFFSET(refs), FF_OPT_TYPE_INT, 1, INT_MIN, INT_MAX, V|E},
-{"chromaoffset", "chroma qp offset from luma", OFFSET(chromaoffset), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"bframebias", "influences how often B-frames are used", OFFSET(bframebias), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
-{"trellis", "rate-distortion optimal quantization", OFFSET(trellis), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|A|E},
-{"directpred", "direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal), 3 (auto)", OFFSET(directpred), FF_OPT_TYPE_INT, 2, INT_MIN, INT_MAX, V|E},
-{"bpyramid", "allows B-frames to be used as references for predicting", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BPYRAMID, INT_MIN, INT_MAX, V|E, "flags2"},
-{"wpred", "weighted biprediction for b-frames (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_WPRED, INT_MIN, INT_MAX, V|E, "flags2"},
-{"mixed_refs", "one reference per partition, as opposed to one reference per macroblock", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_MIXED_REFS, INT_MIN, INT_MAX, V|E, "flags2"},
-{"dct8x8", "high profile 8x8 transform (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_8X8DCT, INT_MIN, INT_MAX, V|E, "flags2"},
-{"fastpskip", "fast pskip (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FASTPSKIP, INT_MIN, INT_MAX, V|E, "flags2"},
-{"aud", "access unit delimiters (H.264)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_AUD, INT_MIN, INT_MAX, V|E, "flags2"},
-{"skiprd", "RD optimal MB level residual skipping", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_SKIP_RD, INT_MIN, INT_MAX, V|E, "flags2"},
-{"complexityblur", "reduce fluctuations in qp (before curve compression)", OFFSET(complexityblur), FF_OPT_TYPE_FLOAT, 20.0, FLT_MIN, FLT_MAX, V|E},
-{"deblockalpha", "in-loop deblocking filter alphac0 parameter", OFFSET(deblockalpha), FF_OPT_TYPE_INT, DEFAULT, -6, 6, V|E},
-{"deblockbeta", "in-loop deblocking filter beta parameter", OFFSET(deblockbeta), FF_OPT_TYPE_INT, DEFAULT, -6, 6, V|E},
-{"partitions", "macroblock subpartition sizes to consider", OFFSET(partitions), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|E, "partitions"},
-{"parti4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I4X4, INT_MIN, INT_MAX, V|E, "partitions"},
-{"parti8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I8X8, INT_MIN, INT_MAX, V|E, "partitions"},
-{"partp4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P4X4, INT_MIN, INT_MAX, V|E, "partitions"},
-{"partp8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P8X8, INT_MIN, INT_MAX, V|E, "partitions"},
-{"partb8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_B8X8, INT_MIN, INT_MAX, V|E, "partitions"},
-{"sc_factor", "multiplied by qscale for each frame and added to scene_change_score", OFFSET(scenechange_factor), FF_OPT_TYPE_INT, 6, 0, INT_MAX, V|E},
-{"mv0_threshold", NULL, OFFSET(mv0_threshold), FF_OPT_TYPE_INT, 256, 0, INT_MAX, V|E},
-{"ivlc", "intra vlc table", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_INTRA_VLC, INT_MIN, INT_MAX, V|E, "flags2"},
-{"b_sensitivity", "adjusts sensitivity of b_frame_strategy 1", OFFSET(b_sensitivity), FF_OPT_TYPE_INT, 40, 1, INT_MAX, V|E},
-{"compression_level", NULL, OFFSET(compression_level), FF_OPT_TYPE_INT, FF_COMPRESSION_DEFAULT, INT_MIN, INT_MAX, V|A|E},
-{"use_lpc", "sets whether to use LPC mode (FLAC)", OFFSET(use_lpc), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
-{"lpc_coeff_precision", "LPC coefficient precision (FLAC)", OFFSET(lpc_coeff_precision), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, A|E},
-{"min_prediction_order", NULL, OFFSET(min_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
-{"max_prediction_order", NULL, OFFSET(max_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
-{"prediction_order_method", "search method for selecting prediction order", OFFSET(prediction_order_method), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
-{"min_partition_order", NULL, OFFSET(min_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
-{"max_partition_order", NULL, OFFSET(max_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
-{"timecode_frame_start", "GOP timecode frame start number, in non drop frame format", OFFSET(timecode_frame_start), FF_OPT_TYPE_INT, 0, 0, INT_MAX, V|E},
-{"drop_frame_timecode", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_DROP_FRAME_TIMECODE, INT_MIN, INT_MAX, V|E, "flags2"},
-{"non_linear_q", "use non linear quantizer", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_NON_LINEAR_QUANT, INT_MIN, INT_MAX, V|E, "flags2"},
-{"request_channels", "set desired number of audio channels", OFFSET(request_channels), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, A|D},
-{"drc_scale", "percentage of dynamic range compression to apply", OFFSET(drc_scale), FF_OPT_TYPE_FLOAT, 1.0, 0.0, 1.0, A|D},
-{"reservoir", "use bit reservoir", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BIT_RESERVOIR, INT_MIN, INT_MAX, A|E, "flags2"},
-{"bits_per_raw_sample", NULL, OFFSET(bits_per_raw_sample), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
-{"channel_layout", NULL, OFFSET(channel_layout), FF_OPT_TYPE_INT64, DEFAULT, 0, INT64_MAX, A|E|D, "channel_layout"},
-{"request_channel_layout", NULL, OFFSET(request_channel_layout), FF_OPT_TYPE_INT64, DEFAULT, 0, INT64_MAX, A|D, "request_channel_layout"},
-{"rc_max_vbv_use", NULL, OFFSET(rc_max_available_vbv_use), FF_OPT_TYPE_FLOAT, 1.0/3, 0.0, FLT_MAX, V|E},
-{"rc_min_vbv_use", NULL, OFFSET(rc_min_vbv_overflow_use),  FF_OPT_TYPE_FLOAT, 3,     0.0, FLT_MAX, V|E},
-{NULL},
-};
-
-#undef A
-#undef V
-#undef S
-#undef E
-#undef D
-#undef DEFAULT
-
-static const AVClass av_codec_context_class = { "AVCodecContext", context_to_name, options };
-
-void avcodec_get_context_defaults2(AVCodecContext *s, enum CodecType codec_type){
-    int flags=0;
-    memset(s, 0, sizeof(AVCodecContext));
-
-    s->av_class= &av_codec_context_class;
-
-    s->codec_type = codec_type;
-    if(codec_type == CODEC_TYPE_AUDIO)
-        flags= AV_OPT_FLAG_AUDIO_PARAM;
-    else if(codec_type == CODEC_TYPE_VIDEO)
-        flags= AV_OPT_FLAG_VIDEO_PARAM;
-    else if(codec_type == CODEC_TYPE_SUBTITLE)
-        flags= AV_OPT_FLAG_SUBTITLE_PARAM;
-    av_opt_set_defaults2(s, flags, flags);
-
-    s->time_base= (AVRational){0,1};
-    s->get_buffer= avcodec_default_get_buffer;
-    s->release_buffer= avcodec_default_release_buffer;
-    s->get_format= avcodec_default_get_format;
-    s->execute= avcodec_default_execute;
-    s->sample_aspect_ratio= (AVRational){0,1};
-    s->pix_fmt= PIX_FMT_NONE;
-    s->sample_fmt= SAMPLE_FMT_S16; // FIXME: set to NONE
-
-    s->palctrl = NULL;
-    s->reget_buffer= avcodec_default_reget_buffer;
-}
-
-AVCodecContext *avcodec_alloc_context2(enum CodecType codec_type){
-    AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));
-
-    if(avctx==NULL) return NULL;
-
-    avcodec_get_context_defaults2(avctx, codec_type);
-
-    return avctx;
-}
-
-void avcodec_get_context_defaults(AVCodecContext *s){
-    avcodec_get_context_defaults2(s, CODEC_TYPE_UNKNOWN);
-}
-
-AVCodecContext *avcodec_alloc_context(void){
-    return avcodec_alloc_context2(CODEC_TYPE_UNKNOWN);
-}
-
 void avcodec_get_frame_defaults(AVFrame *pic){
     memset(pic, 0, sizeof(AVFrame));
 




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