[FFmpeg-cvslog] r8934 - in trunk: configure libavcodec/Makefile libavcodec/h263_parser.c libavcodec/h263_parser.h libavcodec/h263dec.c

diego subversion
Tue May 8 10:52:38 CEST 2007


Author: diego
Date: Tue May  8 10:52:38 2007
New Revision: 8934

Log:
Move H.263 parser to its own file.


Added:
   trunk/libavcodec/h263_parser.c
      - copied, changed from r8909, /trunk/libavcodec/h263dec.c
   trunk/libavcodec/h263_parser.h
Modified:
   trunk/configure
   trunk/libavcodec/Makefile
   trunk/libavcodec/h263dec.c

Modified: trunk/configure
==============================================================================
--- trunk/configure	(original)
+++ trunk/configure	Tue May  8 10:52:38 2007
@@ -676,6 +676,7 @@ CMDLINE_SELECT="
 dxa_decoder_deps="zlib"
 flashsv_decoder_deps="zlib"
 flashsv_encoder_deps="zlib"
+h263_decoder_deps="h263_parser"
 mpeg_xvmc_decoder_deps="xvmc"
 png_decoder_deps="zlib"
 png_encoder_deps="zlib"

Modified: trunk/libavcodec/Makefile
==============================================================================
--- trunk/libavcodec/Makefile	(original)
+++ trunk/libavcodec/Makefile	Tue May  8 10:52:38 2007
@@ -282,7 +282,7 @@ OBJS-$(CONFIG_DCA_PARSER)              +
 OBJS-$(CONFIG_DVBSUB_PARSER)           += dvbsub_parser.o
 OBJS-$(CONFIG_DVDSUB_PARSER)           += dvdsub_parser.o
 OBJS-$(CONFIG_H261_PARSER)             += h261_parser.o
-OBJS-$(CONFIG_H263_PARSER)             += h263dec.o
+OBJS-$(CONFIG_H263_PARSER)             += h263_parser.o
 OBJS-$(CONFIG_H264_PARSER)             += h264.o
 OBJS-$(CONFIG_MJPEG_PARSER)            += mjpeg.o
 OBJS-$(CONFIG_MPEG4VIDEO_PARSER)       += mpeg4video_parser.o

Copied: trunk/libavcodec/h263_parser.c (from r8909, /trunk/libavcodec/h263dec.c)
==============================================================================
--- /trunk/libavcodec/h263dec.c	(original)
+++ trunk/libavcodec/h263_parser.c	Tue May  8 10:52:38 2007
@@ -1,6 +1,5 @@
 /*
- * H.263 decoder
- * Copyright (c) 2001 Fabrice Bellard.
+ * H.263 parser
  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni at gmx.at>
  *
  * This file is part of FFmpeg.
@@ -21,344 +20,13 @@
  */
 
 /**
- * @file h263dec.c
- * H.263 decoder.
- */
-
-#include "avcodec.h"
-#include "dsputil.h"
-#include "mpegvideo.h"
-
-//#define DEBUG
-//#define PRINT_FRAME_TIME
-
-int ff_h263_decode_init(AVCodecContext *avctx)
-{
-    MpegEncContext *s = avctx->priv_data;
-
-    s->avctx = avctx;
-    s->out_format = FMT_H263;
-
-    s->width  = avctx->coded_width;
-    s->height = avctx->coded_height;
-    s->workaround_bugs= avctx->workaround_bugs;
-
-    // set defaults
-    MPV_decode_defaults(s);
-    s->quant_precision=5;
-    s->decode_mb= ff_h263_decode_mb;
-    s->low_delay= 1;
-    avctx->pix_fmt= PIX_FMT_YUV420P;
-    s->unrestricted_mv= 1;
-
-    /* select sub codec */
-    switch(avctx->codec->id) {
-    case CODEC_ID_H263:
-        s->unrestricted_mv= 0;
-        break;
-    case CODEC_ID_MPEG4:
-        s->decode_mb= ff_mpeg4_decode_mb;
-        s->time_increment_bits = 4; /* default value for broken headers */
-        s->h263_pred = 1;
-        s->low_delay = 0; //default, might be overriden in the vol header during header parsing
-        break;
-    case CODEC_ID_MSMPEG4V1:
-        s->h263_msmpeg4 = 1;
-        s->h263_pred = 1;
-        s->msmpeg4_version=1;
-        break;
-    case CODEC_ID_MSMPEG4V2:
-        s->h263_msmpeg4 = 1;
-        s->h263_pred = 1;
-        s->msmpeg4_version=2;
-        break;
-    case CODEC_ID_MSMPEG4V3:
-        s->h263_msmpeg4 = 1;
-        s->h263_pred = 1;
-        s->msmpeg4_version=3;
-        break;
-    case CODEC_ID_WMV1:
-        s->h263_msmpeg4 = 1;
-        s->h263_pred = 1;
-        s->msmpeg4_version=4;
-        break;
-    case CODEC_ID_WMV2:
-        s->h263_msmpeg4 = 1;
-        s->h263_pred = 1;
-        s->msmpeg4_version=5;
-        break;
-    case CODEC_ID_VC1:
-    case CODEC_ID_WMV3:
-        s->h263_msmpeg4 = 1;
-        s->h263_pred = 1;
-        s->msmpeg4_version=6;
-        break;
-    case CODEC_ID_H263I:
-        break;
-    case CODEC_ID_FLV1:
-        s->h263_flv = 1;
-        break;
-    default:
-        return -1;
-    }
-    s->codec_id= avctx->codec->id;
-
-    /* for h263, we allocate the images after having read the header */
-    if (avctx->codec->id != CODEC_ID_H263 && avctx->codec->id != CODEC_ID_MPEG4)
-        if (MPV_common_init(s) < 0)
-            return -1;
-
-    if (s->h263_msmpeg4)
-        ff_msmpeg4_decode_init(s);
-    else
-        h263_decode_init_vlc(s);
-
-    return 0;
-}
-
-int ff_h263_decode_end(AVCodecContext *avctx)
-{
-    MpegEncContext *s = avctx->priv_data;
-
-    MPV_common_end(s);
-    return 0;
-}
-
-/**
- * returns the number of bytes consumed for building the current frame
- */
-static int get_consumed_bytes(MpegEncContext *s, int buf_size){
-    int pos= (get_bits_count(&s->gb)+7)>>3;
-
-    if(s->divx_packed){
-        //we would have to scan through the whole buf to handle the weird reordering ...
-        return buf_size;
-    }else if(s->flags&CODEC_FLAG_TRUNCATED){
-        pos -= s->parse_context.last_index;
-        if(pos<0) pos=0; // padding is not really read so this might be -1
-        return pos;
-    }else{
-        if(pos==0) pos=1; //avoid infinite loops (i doubt thats needed but ...)
-        if(pos+10>buf_size) pos=buf_size; // oops ;)
-
-        return pos;
-    }
-}
-
-static int decode_slice(MpegEncContext *s){
-    const int part_mask= s->partitioned_frame ? (AC_END|AC_ERROR) : 0x7F;
-    const int mb_size= 16>>s->avctx->lowres;
-    s->last_resync_gb= s->gb;
-    s->first_slice_line= 1;
-
-    s->resync_mb_x= s->mb_x;
-    s->resync_mb_y= s->mb_y;
-
-    ff_set_qscale(s, s->qscale);
-
-    if(s->partitioned_frame){
-        const int qscale= s->qscale;
-
-        if(s->codec_id==CODEC_ID_MPEG4){
-            if(ff_mpeg4_decode_partitions(s) < 0)
-                return -1;
-        }
-
-        /* restore variables which were modified */
-        s->first_slice_line=1;
-        s->mb_x= s->resync_mb_x;
-        s->mb_y= s->resync_mb_y;
-        ff_set_qscale(s, qscale);
-    }
-
-    for(; s->mb_y < s->mb_height; s->mb_y++) {
-        /* per-row end of slice checks */
-        if(s->msmpeg4_version){
-            if(s->resync_mb_y + s->slice_height == s->mb_y){
-                ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, AC_END|DC_END|MV_END);
-
-                return 0;
-            }
-        }
-
-        if(s->msmpeg4_version==1){
-            s->last_dc[0]=
-            s->last_dc[1]=
-            s->last_dc[2]= 128;
-        }
-
-        ff_init_block_index(s);
-        for(; s->mb_x < s->mb_width; s->mb_x++) {
-            int ret;
-
-            ff_update_block_index(s);
-
-            if(s->resync_mb_x == s->mb_x && s->resync_mb_y+1 == s->mb_y){
-                s->first_slice_line=0;
-            }
-
-            /* DCT & quantize */
-
-            s->mv_dir = MV_DIR_FORWARD;
-            s->mv_type = MV_TYPE_16X16;
-//            s->mb_skipped = 0;
-//printf("%d %d %06X\n", ret, get_bits_count(&s->gb), show_bits(&s->gb, 24));
-            ret= s->decode_mb(s, s->block);
-
-            if (s->pict_type!=B_TYPE)
-                ff_h263_update_motion_val(s);
-
-            if(ret<0){
-                const int xy= s->mb_x + s->mb_y*s->mb_stride;
-                if(ret==SLICE_END){
-                    MPV_decode_mb(s, s->block);
-                    if(s->loop_filter)
-                        ff_h263_loop_filter(s);
-
-//printf("%d %d %d %06X\n", s->mb_x, s->mb_y, s->gb.size*8 - get_bits_count(&s->gb), show_bits(&s->gb, 24));
-                    ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
-
-                    s->padding_bug_score--;
-
-                    if(++s->mb_x >= s->mb_width){
-                        s->mb_x=0;
-                        ff_draw_horiz_band(s, s->mb_y*mb_size, mb_size);
-                        s->mb_y++;
-                    }
-                    return 0;
-                }else if(ret==SLICE_NOEND){
-                    av_log(s->avctx, AV_LOG_ERROR, "Slice mismatch at MB: %d\n", xy);
-                    ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x+1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
-                    return -1;
-                }
-                av_log(s->avctx, AV_LOG_ERROR, "Error at MB: %d\n", xy);
-                ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
-
-                return -1;
-            }
-
-            MPV_decode_mb(s, s->block);
-            if(s->loop_filter)
-                ff_h263_loop_filter(s);
-        }
-
-        ff_draw_horiz_band(s, s->mb_y*mb_size, mb_size);
-
-        s->mb_x= 0;
-    }
-
-    assert(s->mb_x==0 && s->mb_y==s->mb_height);
-
-    /* try to detect the padding bug */
-    if(      s->codec_id==CODEC_ID_MPEG4
-       &&   (s->workaround_bugs&FF_BUG_AUTODETECT)
-       &&    s->gb.size_in_bits - get_bits_count(&s->gb) >=0
-       &&    s->gb.size_in_bits - get_bits_count(&s->gb) < 48
-//       &&   !s->resync_marker
-       &&   !s->data_partitioning){
-
-        const int bits_count= get_bits_count(&s->gb);
-        const int bits_left = s->gb.size_in_bits - bits_count;
-
-        if(bits_left==0){
-            s->padding_bug_score+=16;
-        } else if(bits_left != 1){
-            int v= show_bits(&s->gb, 8);
-            v|= 0x7F >> (7-(bits_count&7));
-
-            if(v==0x7F && bits_left<=8)
-                s->padding_bug_score--;
-            else if(v==0x7F && ((get_bits_count(&s->gb)+8)&8) && bits_left<=16)
-                s->padding_bug_score+= 4;
-            else
-                s->padding_bug_score++;
-        }
-    }
-
-    if(s->workaround_bugs&FF_BUG_AUTODETECT){
-        if(s->padding_bug_score > -2 && !s->data_partitioning /*&& (s->divx_version || !s->resync_marker)*/)
-            s->workaround_bugs |=  FF_BUG_NO_PADDING;
-        else
-            s->workaround_bugs &= ~FF_BUG_NO_PADDING;
-    }
-
-    // handle formats which don't have unique end markers
-    if(s->msmpeg4_version || (s->workaround_bugs&FF_BUG_NO_PADDING)){ //FIXME perhaps solve this more cleanly
-        int left= s->gb.size_in_bits - get_bits_count(&s->gb);
-        int max_extra=7;
-
-        /* no markers in M$ crap */
-        if(s->msmpeg4_version && s->pict_type==I_TYPE)
-            max_extra+= 17;
-
-        /* buggy padding but the frame should still end approximately at the bitstream end */
-        if((s->workaround_bugs&FF_BUG_NO_PADDING) && s->error_resilience>=3)
-            max_extra+= 48;
-        else if((s->workaround_bugs&FF_BUG_NO_PADDING))
-            max_extra+= 256*256*256*64;
-
-        if(left>max_extra){
-            av_log(s->avctx, AV_LOG_ERROR, "discarding %d junk bits at end, next would be %X\n", left, show_bits(&s->gb, 24));
-        }
-        else if(left<0){
-            av_log(s->avctx, AV_LOG_ERROR, "overreading %d bits\n", -left);
-        }else
-            ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, AC_END|DC_END|MV_END);
-
-        return 0;
-    }
-
-    av_log(s->avctx, AV_LOG_ERROR, "slice end not reached but screenspace end (%d left %06X, score= %d)\n",
-            s->gb.size_in_bits - get_bits_count(&s->gb),
-            show_bits(&s->gb, 24), s->padding_bug_score);
-
-    ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
-
-    return -1;
-}
-
-/**
- * finds the end of the current frame in the bitstream.
- * @return the position of the first byte of the next frame, or -1
+ * @file h263_parser.c
+ * H.263 parser
  */
-int ff_mpeg4_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size){
-    int vop_found, i;
-    uint32_t state;
 
-    vop_found= pc->frame_start_found;
-    state= pc->state;
-
-    i=0;
-    if(!vop_found){
-        for(i=0; i<buf_size; i++){
-            state= (state<<8) | buf[i];
-            if(state == 0x1B6){
-                i++;
-                vop_found=1;
-                break;
-            }
-        }
-    }
-
-    if(vop_found){
-        /* EOF considered as end of frame */
-        if (buf_size == 0)
-            return 0;
-        for(; i<buf_size; i++){
-            state= (state<<8) | buf[i];
-            if((state&0xFFFFFF00) == 0x100){
-                pc->frame_start_found=0;
-                pc->state=-1;
-                return i-3;
-            }
-        }
-    }
-    pc->frame_start_found= vop_found;
-    pc->state= state;
-    return END_NOT_FOUND;
-}
+#include "parser.h"
 
-static int h263_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size){
+int ff_h263_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size){
     int vop_found, i;
     uint32_t state;
 
@@ -393,7 +61,6 @@ static int h263_find_frame_end(ParseCont
     return END_NOT_FOUND;
 }
 
-#ifdef CONFIG_H263_PARSER
 static int h263_parse(AVCodecParserContext *s,
                            AVCodecContext *avctx,
                            uint8_t **poutbuf, int *poutbuf_size,
@@ -402,7 +69,7 @@ static int h263_parse(AVCodecParserConte
     ParseContext *pc = s->priv_data;
     int next;
 
-    next= h263_find_frame_end(pc, buf, buf_size);
+    next= ff_h263_find_frame_end(pc, buf, buf_size);
 
     if (ff_combine_frame(pc, next, (uint8_t **)&buf, &buf_size) < 0) {
         *poutbuf = NULL;
@@ -414,496 +81,7 @@ static int h263_parse(AVCodecParserConte
     *poutbuf_size = buf_size;
     return next;
 }
-#endif
-
-int ff_h263_decode_frame(AVCodecContext *avctx,
-                             void *data, int *data_size,
-                             uint8_t *buf, int buf_size)
-{
-    MpegEncContext *s = avctx->priv_data;
-    int ret;
-    AVFrame *pict = data;
-
-#ifdef PRINT_FRAME_TIME
-uint64_t time= rdtsc();
-#endif
-#ifdef DEBUG
-    av_log(avctx, AV_LOG_DEBUG, "*****frame %d size=%d\n", avctx->frame_number, buf_size);
-    if(buf_size>0)
-        av_log(avctx, AV_LOG_DEBUG, "bytes=%x %x %x %x\n", buf[0], buf[1], buf[2], buf[3]);
-#endif
-    s->flags= avctx->flags;
-    s->flags2= avctx->flags2;
-
-    /* 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;
-    }
-
-    if(s->flags&CODEC_FLAG_TRUNCATED){
-        int next;
-
-        if(s->codec_id==CODEC_ID_MPEG4){
-            next= ff_mpeg4_find_frame_end(&s->parse_context, buf, buf_size);
-        }else if(s->codec_id==CODEC_ID_H263){
-            next= h263_find_frame_end(&s->parse_context, buf, buf_size);
-        }else{
-            av_log(s->avctx, AV_LOG_ERROR, "this codec does not support truncated bitstreams\n");
-            return -1;
-        }
-
-        if( ff_combine_frame(&s->parse_context, next, &buf, &buf_size) < 0 )
-            return buf_size;
-    }
-
-
-retry:
-
-    if(s->bitstream_buffer_size && (s->divx_packed || buf_size<20)){ //divx 5.01+/xvid frame reorder
-        init_get_bits(&s->gb, s->bitstream_buffer, s->bitstream_buffer_size*8);
-    }else
-        init_get_bits(&s->gb, buf, buf_size*8);
-    s->bitstream_buffer_size=0;
-
-    if (!s->context_initialized) {
-        if (MPV_common_init(s) < 0) //we need the idct permutaton for reading a custom matrix
-            return -1;
-    }
 
-    //we need to set current_picture_ptr before reading the header, otherwise we cant store anyting im 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];
-    }
-
-    /* let's go :-) */
-    if (s->msmpeg4_version==5) {
-        ret= ff_wmv2_decode_picture_header(s);
-    } else if (s->msmpeg4_version) {
-        ret = msmpeg4_decode_picture_header(s);
-    } else if (s->h263_pred) {
-        if(s->avctx->extradata_size && s->picture_number==0){
-            GetBitContext gb;
-
-            init_get_bits(&gb, s->avctx->extradata, s->avctx->extradata_size*8);
-            ret = ff_mpeg4_decode_picture_header(s, &gb);
-        }
-        ret = ff_mpeg4_decode_picture_header(s, &s->gb);
-
-        if(s->flags& CODEC_FLAG_LOW_DELAY)
-            s->low_delay=1;
-    } else if (s->codec_id == CODEC_ID_H263I) {
-        ret = intel_h263_decode_picture_header(s);
-    } else if (s->h263_flv) {
-        ret = flv_h263_decode_picture_header(s);
-    } else {
-        ret = h263_decode_picture_header(s);
-    }
-
-    if(ret==FRAME_SKIPPED) return get_consumed_bytes(s, buf_size);
-
-    /* skip if the header was thrashed */
-    if (ret < 0){
-        av_log(s->avctx, AV_LOG_ERROR, "header damaged\n");
-        return -1;
-    }
-
-    avctx->has_b_frames= !s->low_delay;
-
-    if(s->xvid_build==0 && s->divx_version==0 && s->lavc_build==0){
-        if(s->stream_codec_tag == ff_get_fourcc("XVID") ||
-           s->codec_tag == ff_get_fourcc("XVID") || s->codec_tag == ff_get_fourcc("XVIX") ||
-           s->codec_tag == ff_get_fourcc("RMP4"))
-            s->xvid_build= -1;
-#if 0
-        if(s->codec_tag == ff_get_fourcc("DIVX") && s->vo_type==0 && s->vol_control_parameters==1
-           && s->padding_bug_score > 0 && s->low_delay) // XVID with modified fourcc
-            s->xvid_build= -1;
-#endif
-    }
-
-    if(s->xvid_build==0 && s->divx_version==0 && s->lavc_build==0){
-        if(s->codec_tag == ff_get_fourcc("DIVX") && s->vo_type==0 && s->vol_control_parameters==0)
-            s->divx_version= 400; //divx 4
-    }
-
-    if(s->xvid_build && s->divx_version){
-        s->divx_version=
-        s->divx_build= 0;
-    }
-
-    if(s->workaround_bugs&FF_BUG_AUTODETECT){
-        if(s->codec_tag == ff_get_fourcc("XVIX"))
-            s->workaround_bugs|= FF_BUG_XVID_ILACE;
-
-        if(s->codec_tag == ff_get_fourcc("UMP4")){
-            s->workaround_bugs|= FF_BUG_UMP4;
-        }
-
-        if(s->divx_version>=500){
-            s->workaround_bugs|= FF_BUG_QPEL_CHROMA;
-        }
-
-        if(s->divx_version>502){
-            s->workaround_bugs|= FF_BUG_QPEL_CHROMA2;
-        }
-
-        if(s->xvid_build && s->xvid_build<=3)
-            s->padding_bug_score= 256*256*256*64;
-
-        if(s->xvid_build && s->xvid_build<=1)
-            s->workaround_bugs|= FF_BUG_QPEL_CHROMA;
-
-        if(s->xvid_build && s->xvid_build<=12)
-            s->workaround_bugs|= FF_BUG_EDGE;
-
-        if(s->xvid_build && s->xvid_build<=32)
-            s->workaround_bugs|= FF_BUG_DC_CLIP;
-
-#define SET_QPEL_FUNC(postfix1, postfix2) \
-    s->dsp.put_ ## postfix1 = ff_put_ ## postfix2;\
-    s->dsp.put_no_rnd_ ## postfix1 = ff_put_no_rnd_ ## postfix2;\
-    s->dsp.avg_ ## postfix1 = ff_avg_ ## postfix2;
-
-        if(s->lavc_build && s->lavc_build<4653)
-            s->workaround_bugs|= FF_BUG_STD_QPEL;
-
-        if(s->lavc_build && s->lavc_build<4655)
-            s->workaround_bugs|= FF_BUG_DIRECT_BLOCKSIZE;
-
-        if(s->lavc_build && s->lavc_build<4670){
-            s->workaround_bugs|= FF_BUG_EDGE;
-        }
-
-        if(s->lavc_build && s->lavc_build<=4712)
-            s->workaround_bugs|= FF_BUG_DC_CLIP;
-
-        if(s->divx_version)
-            s->workaround_bugs|= FF_BUG_DIRECT_BLOCKSIZE;
-//printf("padding_bug_score: %d\n", s->padding_bug_score);
-        if(s->divx_version==501 && s->divx_build==20020416)
-            s->padding_bug_score= 256*256*256*64;
-
-        if(s->divx_version && s->divx_version<500){
-            s->workaround_bugs|= FF_BUG_EDGE;
-        }
-
-        if(s->divx_version)
-            s->workaround_bugs|= FF_BUG_HPEL_CHROMA;
-#if 0
-        if(s->divx_version==500)
-            s->padding_bug_score= 256*256*256*64;
-
-        /* very ugly XVID padding bug detection FIXME/XXX solve this differently
-         * lets hope this at least works
-         */
-        if(   s->resync_marker==0 && s->data_partitioning==0 && s->divx_version==0
-           && s->codec_id==CODEC_ID_MPEG4 && s->vo_type==0)
-            s->workaround_bugs|= FF_BUG_NO_PADDING;
-
-        if(s->lavc_build && s->lavc_build<4609) //FIXME not sure about the version num but a 4609 file seems ok
-            s->workaround_bugs|= FF_BUG_NO_PADDING;
-#endif
-    }
-
-    if(s->workaround_bugs& FF_BUG_STD_QPEL){
-        SET_QPEL_FUNC(qpel_pixels_tab[0][ 5], qpel16_mc11_old_c)
-        SET_QPEL_FUNC(qpel_pixels_tab[0][ 7], qpel16_mc31_old_c)
-        SET_QPEL_FUNC(qpel_pixels_tab[0][ 9], qpel16_mc12_old_c)
-        SET_QPEL_FUNC(qpel_pixels_tab[0][11], qpel16_mc32_old_c)
-        SET_QPEL_FUNC(qpel_pixels_tab[0][13], qpel16_mc13_old_c)
-        SET_QPEL_FUNC(qpel_pixels_tab[0][15], qpel16_mc33_old_c)
-
-        SET_QPEL_FUNC(qpel_pixels_tab[1][ 5], qpel8_mc11_old_c)
-        SET_QPEL_FUNC(qpel_pixels_tab[1][ 7], qpel8_mc31_old_c)
-        SET_QPEL_FUNC(qpel_pixels_tab[1][ 9], qpel8_mc12_old_c)
-        SET_QPEL_FUNC(qpel_pixels_tab[1][11], qpel8_mc32_old_c)
-        SET_QPEL_FUNC(qpel_pixels_tab[1][13], qpel8_mc13_old_c)
-        SET_QPEL_FUNC(qpel_pixels_tab[1][15], qpel8_mc33_old_c)
-    }
-
-    if(avctx->debug & FF_DEBUG_BUGS)
-        av_log(s->avctx, AV_LOG_DEBUG, "bugs: %X lavc_build:%d xvid_build:%d divx_version:%d divx_build:%d %s\n",
-               s->workaround_bugs, s->lavc_build, s->xvid_build, s->divx_version, s->divx_build,
-               s->divx_packed ? "p" : "");
-
-#if 0 // dump bits per frame / qp / complexity
-{
-    static FILE *f=NULL;
-    if(!f) f=fopen("rate_qp_cplx.txt", "w");
-    fprintf(f, "%d %d %f\n", buf_size, s->qscale, buf_size*(double)s->qscale);
-}
-#endif
-
-#if defined(HAVE_MMX) && defined(CONFIG_GPL)
-    if(s->codec_id == CODEC_ID_MPEG4 && s->xvid_build && avctx->idct_algo == FF_IDCT_AUTO && (mm_flags & MM_MMX)){
-        avctx->idct_algo= FF_IDCT_XVIDMMX;
-        avctx->coded_width= 0; // force reinit
-//        dsputil_init(&s->dsp, avctx);
-        s->picture_number=0;
-    }
-#endif
-
-        /* After H263 & mpeg4 header decode we have the height, width,*/
-        /* and other parameters. So then we could init the picture   */
-        /* FIXME: By the way H263 decoder is evolving it should have */
-        /* an H263EncContext                                         */
-
-    if (   s->width  != avctx->coded_width
-        || s->height != avctx->coded_height) {
-        /* H.263 could change picture size any time */
-        ParseContext pc= s->parse_context; //FIXME move these demuxng hack to avformat
-        s->parse_context.buffer=0;
-        MPV_common_end(s);
-        s->parse_context= pc;
-    }
-    if (!s->context_initialized) {
-        avcodec_set_dimensions(avctx, s->width, s->height);
-
-        goto retry;
-    }
-
-    if((s->codec_id==CODEC_ID_H263 || s->codec_id==CODEC_ID_H263P))
-        s->gob_index = ff_h263_get_gob_height(s);
-
-    // for hurry_up==5
-    s->current_picture.pict_type= s->pict_type;
-    s->current_picture.key_frame= s->pict_type == I_TYPE;
-
-    /* skip B-frames if we don't have reference frames */
-    if(s->last_picture_ptr==NULL && (s->pict_type==B_TYPE || s->dropable)) return get_consumed_bytes(s, buf_size);
-    /* skip b frames if we are in a hurry */
-    if(avctx->hurry_up && s->pict_type==B_TYPE) return get_consumed_bytes(s, buf_size);
-    if(   (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type==B_TYPE)
-       || (avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=I_TYPE)
-       ||  avctx->skip_frame >= AVDISCARD_ALL)
-        return get_consumed_bytes(s, buf_size);
-    /* skip everything if we are in a hurry>=5 */
-    if(avctx->hurry_up>=5) return get_consumed_bytes(s, buf_size);
-
-    if(s->next_p_frame_damaged){
-        if(s->pict_type==B_TYPE)
-            return get_consumed_bytes(s, buf_size);
-        else
-            s->next_p_frame_damaged=0;
-    }
-
-    if((s->avctx->flags2 & CODEC_FLAG2_FAST) && s->pict_type==B_TYPE){
-        s->me.qpel_put= s->dsp.put_2tap_qpel_pixels_tab;
-        s->me.qpel_avg= s->dsp.avg_2tap_qpel_pixels_tab;
-    }else if((!s->no_rounding) || s->pict_type==B_TYPE){
-        s->me.qpel_put= s->dsp.put_qpel_pixels_tab;
-        s->me.qpel_avg= s->dsp.avg_qpel_pixels_tab;
-    }else{
-        s->me.qpel_put= s->dsp.put_no_rnd_qpel_pixels_tab;
-        s->me.qpel_avg= s->dsp.avg_qpel_pixels_tab;
-    }
-
-    if(MPV_frame_start(s, avctx) < 0)
-        return -1;
-
-#ifdef DEBUG
-    av_log(avctx, AV_LOG_DEBUG, "qscale=%d\n", s->qscale);
-#endif
-
-    ff_er_frame_start(s);
-
-    //the second part of the wmv2 header contains the MB skip bits which are stored in current_picture->mb_type
-    //which isnt available before MPV_frame_start()
-    if (s->msmpeg4_version==5){
-        if(ff_wmv2_decode_secondary_picture_header(s) < 0)
-            return -1;
-    }
-
-    /* decode each macroblock */
-    s->mb_x=0;
-    s->mb_y=0;
-
-    decode_slice(s);
-    while(s->mb_y<s->mb_height){
-        if(s->msmpeg4_version){
-            if(s->slice_height==0 || s->mb_x!=0 || (s->mb_y%s->slice_height)!=0 || get_bits_count(&s->gb) > s->gb.size_in_bits)
-                break;
-        }else{
-            if(ff_h263_resync(s)<0)
-                break;
-        }
-
-        if(s->msmpeg4_version<4 && s->h263_pred)
-            ff_mpeg4_clean_buffers(s);
-
-        decode_slice(s);
-    }
-
-    if (s->h263_msmpeg4 && s->msmpeg4_version<4 && s->pict_type==I_TYPE)
-        if(msmpeg4_decode_ext_header(s, buf_size) < 0){
-            s->error_status_table[s->mb_num-1]= AC_ERROR|DC_ERROR|MV_ERROR;
-        }
-
-    /* divx 5.01+ bistream reorder stuff */
-    if(s->codec_id==CODEC_ID_MPEG4 && s->bitstream_buffer_size==0 && s->divx_packed){
-        int current_pos= get_bits_count(&s->gb)>>3;
-        int startcode_found=0;
-
-        if(buf_size - current_pos > 5){
-            int i;
-            for(i=current_pos; i<buf_size-3; i++){
-                if(buf[i]==0 && buf[i+1]==0 && buf[i+2]==1 && buf[i+3]==0xB6){
-                    startcode_found=1;
-                    break;
-                }
-            }
-        }
-        if(s->gb.buffer == s->bitstream_buffer && buf_size>20){ //xvid style
-            startcode_found=1;
-            current_pos=0;
-        }
-
-        if(startcode_found){
-            s->bitstream_buffer= av_fast_realloc(
-                s->bitstream_buffer,
-                &s->allocated_bitstream_buffer_size,
-                buf_size - current_pos + FF_INPUT_BUFFER_PADDING_SIZE);
-            memcpy(s->bitstream_buffer, buf + current_pos, buf_size - current_pos);
-            s->bitstream_buffer_size= buf_size - current_pos;
-        }
-    }
-
-    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 == 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);
-    }
-
-    /* Return the Picture timestamp as the frame number */
-    /* we substract 1 because it is added on utils.c    */
-    avctx->frame_number = s->picture_number - 1;
-
-#ifdef PRINT_FRAME_TIME
-av_log(avctx, AV_LOG_DEBUG, "%"PRId64"\n", rdtsc()-time);
-#endif
-
-    return get_consumed_bytes(s, buf_size);
-}
-
-AVCodec mpeg4_decoder = {
-    "mpeg4",
-    CODEC_TYPE_VIDEO,
-    CODEC_ID_MPEG4,
-    sizeof(MpegEncContext),
-    ff_h263_decode_init,
-    NULL,
-    ff_h263_decode_end,
-    ff_h263_decode_frame,
-    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
-    .flush= ff_mpeg_flush,
-};
-
-AVCodec h263_decoder = {
-    "h263",
-    CODEC_TYPE_VIDEO,
-    CODEC_ID_H263,
-    sizeof(MpegEncContext),
-    ff_h263_decode_init,
-    NULL,
-    ff_h263_decode_end,
-    ff_h263_decode_frame,
-    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
-    .flush= ff_mpeg_flush,
-};
-
-AVCodec msmpeg4v1_decoder = {
-    "msmpeg4v1",
-    CODEC_TYPE_VIDEO,
-    CODEC_ID_MSMPEG4V1,
-    sizeof(MpegEncContext),
-    ff_h263_decode_init,
-    NULL,
-    ff_h263_decode_end,
-    ff_h263_decode_frame,
-    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
-};
-
-AVCodec msmpeg4v2_decoder = {
-    "msmpeg4v2",
-    CODEC_TYPE_VIDEO,
-    CODEC_ID_MSMPEG4V2,
-    sizeof(MpegEncContext),
-    ff_h263_decode_init,
-    NULL,
-    ff_h263_decode_end,
-    ff_h263_decode_frame,
-    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
-};
-
-AVCodec msmpeg4v3_decoder = {
-    "msmpeg4",
-    CODEC_TYPE_VIDEO,
-    CODEC_ID_MSMPEG4V3,
-    sizeof(MpegEncContext),
-    ff_h263_decode_init,
-    NULL,
-    ff_h263_decode_end,
-    ff_h263_decode_frame,
-    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
-};
-
-AVCodec wmv1_decoder = {
-    "wmv1",
-    CODEC_TYPE_VIDEO,
-    CODEC_ID_WMV1,
-    sizeof(MpegEncContext),
-    ff_h263_decode_init,
-    NULL,
-    ff_h263_decode_end,
-    ff_h263_decode_frame,
-    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
-};
-
-AVCodec h263i_decoder = {
-    "h263i",
-    CODEC_TYPE_VIDEO,
-    CODEC_ID_H263I,
-    sizeof(MpegEncContext),
-    ff_h263_decode_init,
-    NULL,
-    ff_h263_decode_end,
-    ff_h263_decode_frame,
-    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
-};
-
-AVCodec flv_decoder = {
-    "flv",
-    CODEC_TYPE_VIDEO,
-    CODEC_ID_FLV1,
-    sizeof(MpegEncContext),
-    ff_h263_decode_init,
-    NULL,
-    ff_h263_decode_end,
-    ff_h263_decode_frame,
-    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1
-};
-
-#ifdef CONFIG_H263_PARSER
 AVCodecParser h263_parser = {
     { CODEC_ID_H263 },
     sizeof(ParseContext),
@@ -911,4 +89,3 @@ AVCodecParser h263_parser = {
     h263_parse,
     ff_parse_close,
 };
-#endif

Added: trunk/libavcodec/h263_parser.h
==============================================================================
--- (empty file)
+++ trunk/libavcodec/h263_parser.h	Tue May  8 10:52:38 2007
@@ -0,0 +1,22 @@
+/*
+ * H.263 parser
+ * Copyright (c) 2002-2004 Michael Niedermayer <michaelni at gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+int ff_h263_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size);

Modified: trunk/libavcodec/h263dec.c
==============================================================================
--- trunk/libavcodec/h263dec.c	(original)
+++ trunk/libavcodec/h263dec.c	Tue May  8 10:52:38 2007
@@ -28,6 +28,7 @@
 #include "avcodec.h"
 #include "dsputil.h"
 #include "mpegvideo.h"
+#include "h263_parser.h"
 
 //#define DEBUG
 //#define PRINT_FRAME_TIME
@@ -358,64 +359,6 @@ int ff_mpeg4_find_frame_end(ParseContext
     return END_NOT_FOUND;
 }
 
-static int h263_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size){
-    int vop_found, i;
-    uint32_t state;
-
-    vop_found= pc->frame_start_found;
-    state= pc->state;
-
-    i=0;
-    if(!vop_found){
-        for(i=0; i<buf_size; i++){
-            state= (state<<8) | buf[i];
-            if(state>>(32-22) == 0x20){
-                i++;
-                vop_found=1;
-                break;
-            }
-        }
-    }
-
-    if(vop_found){
-      for(; i<buf_size; i++){
-        state= (state<<8) | buf[i];
-        if(state>>(32-22) == 0x20){
-            pc->frame_start_found=0;
-            pc->state=-1;
-            return i-3;
-        }
-      }
-    }
-    pc->frame_start_found= vop_found;
-    pc->state= state;
-
-    return END_NOT_FOUND;
-}
-
-#ifdef CONFIG_H263_PARSER
-static int h263_parse(AVCodecParserContext *s,
-                           AVCodecContext *avctx,
-                           const uint8_t **poutbuf, int *poutbuf_size,
-                           const uint8_t *buf, int buf_size)
-{
-    ParseContext *pc = s->priv_data;
-    int next;
-
-    next= h263_find_frame_end(pc, buf, buf_size);
-
-    if (ff_combine_frame(pc, next, &buf, &buf_size) < 0) {
-        *poutbuf = NULL;
-        *poutbuf_size = 0;
-        return buf_size;
-    }
-
-    *poutbuf = buf;
-    *poutbuf_size = buf_size;
-    return next;
-}
-#endif
-
 int ff_h263_decode_frame(AVCodecContext *avctx,
                              void *data, int *data_size,
                              uint8_t *buf, int buf_size)
@@ -454,7 +397,7 @@ uint64_t time= rdtsc();
         if(s->codec_id==CODEC_ID_MPEG4){
             next= ff_mpeg4_find_frame_end(&s->parse_context, buf, buf_size);
         }else if(s->codec_id==CODEC_ID_H263){
-            next= h263_find_frame_end(&s->parse_context, buf, buf_size);
+            next= ff_h263_find_frame_end(&s->parse_context, buf, buf_size);
         }else{
             av_log(s->avctx, AV_LOG_ERROR, "this codec does not support truncated bitstreams\n");
             return -1;
@@ -902,13 +845,3 @@ AVCodec flv_decoder = {
     ff_h263_decode_frame,
     CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1
 };
-
-#ifdef CONFIG_H263_PARSER
-AVCodecParser h263_parser = {
-    { CODEC_ID_H263 },
-    sizeof(ParseContext),
-    NULL,
-    h263_parse,
-    ff_parse_close,
-};
-#endif




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