X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-core%2Ftags%2Fsynfig_0_61_03%2Fsynfig-core%2Fsrc%2Fmodules%2Fmod_libavcodec%2Flibavcodec%2Fh263dec.c;fp=synfig-core%2Ftags%2Fsynfig_0_61_03%2Fsynfig-core%2Fsrc%2Fmodules%2Fmod_libavcodec%2Flibavcodec%2Fh263dec.c;h=0000000000000000000000000000000000000000;hb=3a6643238c67c043fc3592837a05d6d2861967f1;hp=4778851267171354acb3d5184814f488beaaed32;hpb=47fce282611fbba1044921d22ca887f9b53ad91a;p=synfig.git diff --git a/synfig-core/tags/synfig_0_61_03/synfig-core/src/modules/mod_libavcodec/libavcodec/h263dec.c b/synfig-core/tags/synfig_0_61_03/synfig-core/src/modules/mod_libavcodec/libavcodec/h263dec.c deleted file mode 100644 index 4778851..0000000 --- a/synfig-core/tags/synfig_0_61_03/synfig-core/src/modules/mod_libavcodec/libavcodec/h263dec.c +++ /dev/null @@ -1,842 +0,0 @@ -/* - * H.263 decoder - * Copyright (c) 2001 Fabrice Bellard. - * - * This library 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 of the License, or (at your option) any later version. - * - * This library 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 this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -/** - * @file h263dec.c - * H.263 decoder. - */ - -#include "avcodec.h" -#include "dsputil.h" -#include "mpegvideo.h" - -//#define DEBUG -//#define PRINT_FRAME_TIME -#ifdef PRINT_FRAME_TIME -static inline long long rdtsc() -{ - long long l; - asm volatile( "rdtsc\n\t" - : "=A" (l) - ); -// printf("%d\n", int(l/1000)); - return l; -} -#endif - -int ff_h263_decode_init(AVCodecContext *avctx) -{ - MpegEncContext *s = avctx->priv_data; - - s->avctx = avctx; - s->out_format = FMT_H263; - - s->width = avctx->width; - s->height = avctx->height; - s->workaround_bugs= avctx->workaround_bugs; - - // set defaults - s->quant_precision=5; - s->progressive_sequence=1; - s->decode_mb= ff_h263_decode_mb; - s->low_delay= 1; - avctx->pix_fmt= PIX_FMT_YUV420P; - - /* select sub codec */ - switch(avctx->codec->id) { - case CODEC_ID_H263: - s->gob_number = 0; - break; - case CODEC_ID_MPEG4: - 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_H263I: - s->h263_intel = 1; - 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; -} - -/** - * retunrs 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; - 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; - - s->y_dc_scale= s->y_dc_scale_table[ s->qscale ]; - s->c_dc_scale= s->c_dc_scale_table[ 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; - s->qscale= qscale; - s->y_dc_scale= s->y_dc_scale_table[ s->qscale ]; - s->c_dc_scale= s->c_dc_scale_table[ 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->dsp.clear_blocks(s->block[0]); - - s->mv_dir = MV_DIR_FORWARD; - s->mv_type = MV_TYPE_16X16; -// s->mb_skiped = 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); - -//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*16, 16); - s->mb_y++; - } - return 0; - }else if(ret==SLICE_NOEND){ - fprintf(stderr,"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; - } - fprintf(stderr,"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); - } - - ff_draw_horiz_band(s, s->mb_y*16, 16); - - 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>8){ - s->padding_bug_score++; - } else if(bits_left != 1){ - int v= show_bits(&s->gb, 8); - v|= 0x7F >> (7-(bits_count&7)); - - if(v==0x7F) - s->padding_bug_score--; - else - s->padding_bug_score++; - } - } - - // handle formats which dont 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){ - fprintf(stderr, "discarding %d junk bits at end, next would be %X\n", left, show_bits(&s->gb, 24)); - } - else if(left<0){ - fprintf(stderr, "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; - } - - fprintf(stderr, "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 - */ -static int mpeg4_find_frame_end(MpegEncContext *s, uint8_t *buf, int buf_size){ - ParseContext *pc= &s->parse_context; - int vop_found, i; - uint32_t state; - - vop_found= pc->frame_start_found; - state= pc->state; - - i=0; - if(!vop_found){ - for(i=0; iframe_start_found=0; - pc->state=-1; - return i-3; - } - } - } - pc->frame_start_found= vop_found; - pc->state= state; - return END_NOT_FOUND; -} - -static int h263_find_frame_end(MpegEncContext *s, uint8_t *buf, int buf_size){ - ParseContext *pc= &s->parse_context; - 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>(32-22) == 0x20){ - i++; - vop_found=1; - break; - } - } - } - - if(vop_found){ - for(; i>(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; -} - -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; - float new_aspect; - -#ifdef PRINT_FRAME_TIME -uint64_t time= rdtsc(); -#endif -#ifdef DEBUG - printf("*****frame %d size=%d\n", avctx->frame_number, buf_size); - printf("bytes=%x %x %x %x\n", buf[0], buf[1], buf[2], buf[3]); -#endif - s->flags= avctx->flags; - - *data_size = 0; - - /* 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= mpeg4_find_frame_end(s, buf, buf_size); - }else if(s->codec_id==CODEC_ID_H263){ - next= h263_find_frame_end(s, buf, buf_size); - }else{ - fprintf(stderr, "this codec doesnt support truncated bitstreams\n"); - return -1; - } - - if( ff_combine_frame(s, next, &buf, &buf_size) < 0 ) - return buf_size; - } - -retry: - - if(s->bitstream_buffer_size && buf_size<20){ //divx 5.01+ 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; - } - - /* 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->h263_intel) { - 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_SKIPED) return get_consumed_bytes(s, buf_size); - - /* skip if the header was thrashed */ - if (ret < 0){ - fprintf(stderr, "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->avctx->stream_codec_tag == ff_get_fourcc("XVID") || - s->avctx->codec_tag == ff_get_fourcc("XVID") || s->avctx->codec_tag == ff_get_fourcc("XVIX")) - s->xvid_build= -1; -#if 0 - if(s->avctx->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->avctx->codec_tag == ff_get_fourcc("DIVX") && s->vo_type==0 && s->vol_control_parameters==0) - s->divx_version= 400; //divx 4 - } - - if(s->workaround_bugs&FF_BUG_AUTODETECT){ - s->workaround_bugs &= ~FF_BUG_NO_PADDING; - - if(s->padding_bug_score > -2 && !s->data_partitioning && (s->divx_version || !s->resync_marker)) - s->workaround_bugs |= FF_BUG_NO_PADDING; - - if(s->avctx->codec_tag == ff_get_fourcc("XVIX")) - s->workaround_bugs|= FF_BUG_XVID_ILACE; - - if(s->avctx->codec_tag == ff_get_fourcc("UMP4")){ - s->workaround_bugs|= FF_BUG_UMP4; - s->workaround_bugs|= FF_BUG_AC_VLC; - } - - 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; - -#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<4618){ - s->workaround_bugs|= FF_BUG_EDGE; - } - - 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 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) - printf("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 - - /* 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->aspected_height) - new_aspect= s->aspected_width*s->width / (float)(s->height*s->aspected_height); - else - new_aspect=0; - - if ( s->width != avctx->width || s->height != avctx->height - || ABS(new_aspect - avctx->aspect_ratio) > 0.001) { - /* H.263 could change picture size any time */ - MPV_common_end(s); - } - if (!s->context_initialized) { - avctx->width = s->width; - avctx->height = s->height; - avctx->aspect_ratio= new_aspect; - - 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 dont have reference frames */ - if(s->last_picture_ptr==NULL && s->pict_type==B_TYPE) 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); - /* 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(MPV_frame_start(s, avctx) < 0) - return -1; - -#ifdef DEBUG - printf("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_ymb_height){ - if(s->msmpeg4_version){ - if(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; - - if( buf_size - current_pos > 5 - && buf_size - current_pos < BITSTREAM_BUFFER_SIZE){ - int i; - int startcode_found=0; - for(i=current_pos; ibitstream_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; - ff_print_debug_info(s, s->current_picture_ptr); - } else { - *pict= *(AVFrame*)&s->last_picture; - ff_print_debug_info(s, s->last_picture_ptr); - } - - /* 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; - - /* dont output the last pic after seeking */ - if(s->last_picture_ptr || s->low_delay) - *data_size = sizeof(AVFrame); -#ifdef PRINT_FRAME_TIME -printf("%Ld\n", rdtsc()-time); -#endif - - return get_consumed_bytes(s, buf_size); -} - -static const AVOption mpeg4_decoptions[] = -{ - AVOPTION_SUB(avoptions_workaround_bug), - AVOPTION_END() -}; - -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, - .options = mpeg4_decoptions, - .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, - .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, - mpeg4_decoptions, -}; - -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, - mpeg4_decoptions, -}; - -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, - .options = mpeg4_decoptions, -}; - -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, - mpeg4_decoptions, -}; - -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, - mpeg4_decoptions, -}; - -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 -};