mirror of https://git.ffmpeg.org/ffmpeg.git
AVBitStreamFilter (some thingy which can modify the bitstream like add or remove global headers or change the headers or ...)
Originally committed as revision 5643 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
parent
06fcf56c50
commit
748c2fca7e
85
ffmpeg.c
85
ffmpeg.c
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@ -250,6 +250,9 @@ const char **opt_names=NULL;
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int opt_name_count=0;
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int opt_name_count=0;
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AVCodecContext *avctx_opts;
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AVCodecContext *avctx_opts;
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static AVBitStreamFilterContext *video_bitstream_filters=NULL;
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static AVBitStreamFilterContext *audio_bitstream_filters=NULL;
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static AVBitStreamFilterContext *bitstream_filters[MAX_FILES][MAX_STREAMS];
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#define DEFAULT_PASS_LOGFILENAME "ffmpeg2pass"
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#define DEFAULT_PASS_LOGFILENAME "ffmpeg2pass"
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@ -445,6 +448,25 @@ get_sync_ipts(const AVOutputStream *ost)
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return (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/AV_TIME_BASE;
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return (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/AV_TIME_BASE;
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}
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}
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static void write_frame(AVFormatContext *s, AVPacket *pkt, AVCodecContext *avctx, AVBitStreamFilterContext *bsfc){
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while(bsfc){
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AVPacket new_pkt= *pkt;
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int a= av_bitstream_filter_filter(bsfc, avctx, NULL,
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&new_pkt.data, &new_pkt.size,
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pkt->data, pkt->size,
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pkt->flags & PKT_FLAG_KEY);
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if(a){
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av_free_packet(pkt);
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new_pkt.destruct= av_destruct_packet;
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}
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*pkt= new_pkt;
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bsfc= bsfc->next;
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}
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av_interleaved_write_frame(s, pkt);
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}
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#define MAX_AUDIO_PACKET_SIZE (128 * 1024)
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#define MAX_AUDIO_PACKET_SIZE (128 * 1024)
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static void do_audio_out(AVFormatContext *s,
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static void do_audio_out(AVFormatContext *s,
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@ -548,7 +570,7 @@ static void do_audio_out(AVFormatContext *s,
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if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
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if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
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pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
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pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
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pkt.flags |= PKT_FLAG_KEY;
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pkt.flags |= PKT_FLAG_KEY;
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av_interleaved_write_frame(s, &pkt);
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write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
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ost->sync_opts += enc->frame_size;
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ost->sync_opts += enc->frame_size;
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}
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}
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@ -592,7 +614,7 @@ static void do_audio_out(AVFormatContext *s,
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if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
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if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
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pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
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pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
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pkt.flags |= PKT_FLAG_KEY;
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pkt.flags |= PKT_FLAG_KEY;
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av_interleaved_write_frame(s, &pkt);
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write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
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}
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}
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}
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}
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@ -691,7 +713,7 @@ static void do_subtitle_out(AVFormatContext *s,
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else
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else
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pkt.pts += 90 * sub->end_display_time;
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pkt.pts += 90 * sub->end_display_time;
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}
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}
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av_interleaved_write_frame(s, &pkt);
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write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
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}
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}
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}
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}
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@ -853,7 +875,7 @@ static void do_video_out(AVFormatContext *s,
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if(dec->coded_frame && dec->coded_frame->key_frame)
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if(dec->coded_frame && dec->coded_frame->key_frame)
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pkt.flags |= PKT_FLAG_KEY;
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pkt.flags |= PKT_FLAG_KEY;
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av_interleaved_write_frame(s, &pkt);
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write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
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enc->coded_frame = old_frame;
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enc->coded_frame = old_frame;
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} else {
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} else {
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AVFrame big_picture;
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AVFrame big_picture;
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@ -896,7 +918,7 @@ static void do_video_out(AVFormatContext *s,
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if(enc->coded_frame && enc->coded_frame->key_frame)
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if(enc->coded_frame && enc->coded_frame->key_frame)
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pkt.flags |= PKT_FLAG_KEY;
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pkt.flags |= PKT_FLAG_KEY;
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av_interleaved_write_frame(s, &pkt);
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write_frame(s, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
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*frame_size = ret;
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*frame_size = ret;
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//fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
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//fprintf(stderr,"\nFrame: %3d %3d size: %5d type: %d",
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// enc->frame_number-1, enc->real_pict_num, ret,
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// enc->frame_number-1, enc->real_pict_num, ret,
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@ -1317,9 +1339,12 @@ static int output_packet(AVInputStream *ist, int ist_index,
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opkt.dts= av_rescale_q(dts + input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ost->st->time_base);
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opkt.dts= av_rescale_q(dts + input_files_ts_offset[ist->file_index], AV_TIME_BASE_Q, ost->st->time_base);
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}
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}
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opkt.flags= pkt->flags;
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opkt.flags= pkt->flags;
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//FIXME remove the following 2 lines they shall be replaced by the bitstream filters
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if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
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if(av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, data_buf, data_size, pkt->flags & PKT_FLAG_KEY))
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opkt.destruct= av_destruct_packet;
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opkt.destruct= av_destruct_packet;
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av_interleaved_write_frame(os, &opkt);
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write_frame(os, &opkt, ost->st->codec, bitstream_filters[ost->file_index][pkt->stream_index]);
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ost->st->codec->frame_number++;
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ost->st->codec->frame_number++;
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ost->frame_number++;
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ost->frame_number++;
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av_free_packet(&opkt);
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av_free_packet(&opkt);
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@ -1401,7 +1426,7 @@ static int output_packet(AVInputStream *ist, int ist_index,
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pkt.size= ret;
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pkt.size= ret;
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if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
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if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
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pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
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pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
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av_interleaved_write_frame(os, &pkt);
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write_frame(os, &pkt, ost->st->codec, bitstream_filters[ost->file_index][pkt.stream_index]);
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}
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}
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}
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}
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}
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}
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@ -2980,6 +3005,9 @@ static void new_video_stream(AVFormatContext *oc)
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fprintf(stderr, "Could not alloc stream\n");
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fprintf(stderr, "Could not alloc stream\n");
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exit(1);
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exit(1);
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}
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}
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bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
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video_bitstream_filters= NULL;
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#if defined(HAVE_THREADS)
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#if defined(HAVE_THREADS)
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if(thread_count>1)
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if(thread_count>1)
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avcodec_thread_init(st->codec, thread_count);
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avcodec_thread_init(st->codec, thread_count);
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@ -3179,6 +3207,10 @@ static void new_audio_stream(AVFormatContext *oc)
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fprintf(stderr, "Could not alloc stream\n");
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fprintf(stderr, "Could not alloc stream\n");
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exit(1);
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exit(1);
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}
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}
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bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
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audio_bitstream_filters= NULL;
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#if defined(HAVE_THREADS)
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#if defined(HAVE_THREADS)
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if(thread_count>1)
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if(thread_count>1)
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avcodec_thread_init(st->codec, thread_count);
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avcodec_thread_init(st->codec, thread_count);
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@ -3885,6 +3917,41 @@ static void opt_target(const char *arg)
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}
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}
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}
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}
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static void opt_video_bsf(const char *arg)
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{
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AVBitStreamFilterContext *bsfc= av_bitstream_filter_init(arg); //FIXME split name and args for filter at '='
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AVBitStreamFilterContext **bsfp;
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if(!bsfc){
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fprintf(stderr, "Unkown bitstream filter %s\n", arg);
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exit(1);
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}
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bsfp= &video_bitstream_filters;
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while(*bsfp)
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bsfp= &(*bsfp)->next;
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*bsfp= bsfc;
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}
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//FIXME avoid audio - video code duplication
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static void opt_audio_bsf(const char *arg)
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{
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AVBitStreamFilterContext *bsfc= av_bitstream_filter_init(arg); //FIXME split name and args for filter at '='
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AVBitStreamFilterContext **bsfp;
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if(!bsfc){
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fprintf(stderr, "Unkown bitstream filter %s\n", arg);
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exit(1);
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}
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bsfp= &audio_bitstream_filters;
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while(*bsfp)
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bsfp= &(*bsfp)->next;
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*bsfp= bsfc;
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}
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static void show_version(void)
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static void show_version(void)
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{
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{
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/* TODO: add function interface to avutil and avformat */
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/* TODO: add function interface to avutil and avformat */
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@ -4069,6 +4136,10 @@ const OptionDef options[] = {
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{ "packetsize", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&mux_packet_size}, "set packet size", "size" },
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{ "packetsize", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&mux_packet_size}, "set packet size", "size" },
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{ "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT, {(void*)&mux_max_delay}, "set the maximum demux-decode delay", "seconds" },
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{ "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT, {(void*)&mux_max_delay}, "set the maximum demux-decode delay", "seconds" },
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{ "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT, {(void*)&mux_preload}, "set the initial demux-decode delay", "seconds" },
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{ "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT, {(void*)&mux_preload}, "set the initial demux-decode delay", "seconds" },
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{ "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT, {(void*)opt_audio_bsf}, "", "bitstream filter" },
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{ "vbsf", HAS_ARG | OPT_VIDEO | OPT_EXPERT, {(void*)opt_video_bsf}, "", "bitstream filter" },
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{ "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
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{ "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
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{ NULL, },
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{ NULL, },
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};
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};
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@ -17,7 +17,9 @@ OBJS= bitstream.o utils.o mem.o allcodecs.o \
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fft.o mdct.o raw.o golomb.o cabac.o\
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fft.o mdct.o raw.o golomb.o cabac.o\
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dpcm.o adx.o faandct.o parser.o g726.o \
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dpcm.o adx.o faandct.o parser.o g726.o \
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vp3dsp.o h264idct.o rangecoder.o pnm.o h263.o msmpeg4.o h263dec.o \
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vp3dsp.o h264idct.o rangecoder.o pnm.o h263.o msmpeg4.o h263dec.o \
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opt.o
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opt.o \
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bitstream_filter.o \
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HEADERS = avcodec.h
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HEADERS = avcodec.h
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@ -661,5 +661,8 @@ PCM_CODEC(CODEC_ID_ADPCM_SBPRO_2, adpcm_sbpro_2);
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av_register_codec_parser(&dvbsub_parser);
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av_register_codec_parser(&dvbsub_parser);
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#endif
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#endif
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av_register_codec_parser(&aac_parser);
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av_register_codec_parser(&aac_parser);
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av_register_bitstream_filter(&dump_extradata_bsf);
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av_register_bitstream_filter(&remove_extradata_bsf);
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}
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}
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@ -2571,6 +2571,37 @@ extern AVCodecParser dvdsub_parser;
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extern AVCodecParser dvbsub_parser;
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extern AVCodecParser dvbsub_parser;
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extern AVCodecParser aac_parser;
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extern AVCodecParser aac_parser;
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typedef struct AVBitStreamFilterContext {
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struct AVBitStreamFilter *filter;
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AVCodecParserContext *parser;
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struct AVBitStreamFilterContext *next;
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} AVBitStreamFilterContext;
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typedef struct AVBitStreamFilter {
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const char *name;
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int (*filter)(AVBitStreamFilterContext *bsfc,
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AVCodecContext *avctx, const char *args,
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uint8_t **poutbuf, int *poutbuf_size,
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const uint8_t *buf, int buf_size, int keyframe);
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struct AVBitStreamFilter *next;
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} AVBitStreamFilter;
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extern AVBitStreamFilter *av_first_bitstream_filter;
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void av_register_bitstream_filter(AVBitStreamFilter *bsf);
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AVBitStreamFilterContext *av_bitstream_filter_init(const char *name);
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int av_bitstream_filter_filter(AVBitStreamFilterContext *bsfc,
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AVCodecContext *avctx, const char *args,
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uint8_t **poutbuf, int *poutbuf_size,
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const uint8_t *buf, int buf_size, int keyframe);
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void av_bitstream_filter_close(AVBitStreamFilterContext *bsf);
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extern AVBitStreamFilter dump_extradata_bsf;
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extern AVBitStreamFilter remove_extradata_bsf;
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/* memory */
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/* memory */
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void *av_malloc(unsigned int size);
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void *av_malloc(unsigned int size);
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void *av_mallocz(unsigned int size);
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void *av_mallocz(unsigned int size);
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@ -0,0 +1,96 @@
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#include "avcodec.h"
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AVBitStreamFilter *first_bitstream_filter= NULL;
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void av_register_bitstream_filter(AVBitStreamFilter *bsf){
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bsf->next = first_bitstream_filter;
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first_bitstream_filter= bsf;
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}
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AVBitStreamFilterContext *av_bitstream_filter_init(const char *name){
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AVBitStreamFilter *bsf= first_bitstream_filter;
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while(bsf){
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if(!strcmp(name, bsf->name)){
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AVBitStreamFilterContext *bsfc= av_mallocz(sizeof(AVBitStreamFilterContext));
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bsfc->filter= bsf;
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return bsfc;
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}
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bsf= bsf->next;
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}
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return NULL;
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}
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void av_bitstream_filter_close(AVBitStreamFilterContext *bsfc){
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av_parser_close(bsfc->parser);
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av_free(bsfc);
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}
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int av_bitstream_filter_filter(AVBitStreamFilterContext *bsfc,
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AVCodecContext *avctx, const char *args,
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uint8_t **poutbuf, int *poutbuf_size,
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const uint8_t *buf, int buf_size, int keyframe){
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return bsfc->filter->filter(bsfc, avctx, args, poutbuf, poutbuf_size, buf, buf_size, keyframe);
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}
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static int dump_extradata(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, const char *args,
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uint8_t **poutbuf, int *poutbuf_size,
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const uint8_t *buf, int buf_size, int keyframe){
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int cmd= args ? *args : 0;
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/* cast to avoid warning about discarding qualifiers */
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*poutbuf= (uint8_t *) buf;
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*poutbuf_size= buf_size;
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if(avctx->extradata){
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if( (keyframe && (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER) && cmd=='a')
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||(keyframe && (cmd=='k' || !cmd))
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||(cmd=='e')
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||||||
|
/*||(? && (s->flags & PARSER_FLAG_DUMP_EXTRADATA_AT_BEGIN)*/){
|
||||||
|
int size= buf_size + avctx->extradata_size;
|
||||||
|
*poutbuf_size= size;
|
||||||
|
*poutbuf= av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
|
||||||
|
|
||||||
|
memcpy(*poutbuf, avctx->extradata, avctx->extradata_size);
|
||||||
|
memcpy((*poutbuf) + avctx->extradata_size, buf, buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int remove_extradata(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, const char *args,
|
||||||
|
uint8_t **poutbuf, int *poutbuf_size,
|
||||||
|
const uint8_t *buf, int buf_size, int keyframe){
|
||||||
|
int cmd= args ? *args : 0;
|
||||||
|
AVCodecParserContext *s;
|
||||||
|
|
||||||
|
if(!bsfc->parser){
|
||||||
|
bsfc->parser= av_parser_init(avctx->codec_id);
|
||||||
|
}
|
||||||
|
s= bsfc->parser;
|
||||||
|
|
||||||
|
if(s && s->parser->split){
|
||||||
|
if( (((avctx->flags & CODEC_FLAG_GLOBAL_HEADER) || (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER)) && cmd=='a')
|
||||||
|
||(!keyframe && cmd=='k')
|
||||||
|
||(cmd=='e' || !cmd)
|
||||||
|
){
|
||||||
|
int i= s->parser->split(avctx, buf, buf_size);
|
||||||
|
buf += i;
|
||||||
|
buf_size -= i;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
*poutbuf= (uint8_t *) buf;
|
||||||
|
*poutbuf_size= buf_size;
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
AVBitStreamFilter dump_extradata_bsf={
|
||||||
|
"dump_extra",
|
||||||
|
dump_extradata,
|
||||||
|
};
|
||||||
|
|
||||||
|
AVBitStreamFilter remove_extradata_bsf={
|
||||||
|
"remove_extra",
|
||||||
|
remove_extradata,
|
||||||
|
};
|
|
@ -145,6 +145,7 @@ int av_parser_parse(AVCodecParserContext *s,
|
||||||
/**
|
/**
|
||||||
*
|
*
|
||||||
* @return 0 if the output buffer is a subset of the input, 1 if it is allocated and must be freed
|
* @return 0 if the output buffer is a subset of the input, 1 if it is allocated and must be freed
|
||||||
|
* @deprecated use AVBitstreamFilter
|
||||||
*/
|
*/
|
||||||
int av_parser_change(AVCodecParserContext *s,
|
int av_parser_change(AVCodecParserContext *s,
|
||||||
AVCodecContext *avctx,
|
AVCodecContext *avctx,
|
||||||
|
|
Loading…
Reference in New Issue