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https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
support fixing missing pts by parsing future frames
Originally committed as revision 4526 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
parent
af9da83b0e
commit
30bc6613fe
5
ffmpeg.c
5
ffmpeg.c
@ -211,6 +211,7 @@ static int frame_skip_cmp= FF_CMP_DCTMAX;
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extern int loop_input; /* currently a hack */
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static int loop_output = AVFMT_NOOUTPUTLOOP;
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static int gray_only = 0;
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static int genpts = 0;
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static int gop_size = 12;
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static int intra_only = 0;
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@ -3031,6 +3032,9 @@ static void opt_input_file(const char *filename)
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print_error(filename, err);
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exit(1);
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}
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if(genpts)
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ic->flags|= AVFMT_FLAG_GENPTS;
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/* If not enough info to get the stream parameters, we decode the
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first frames to get it. (used in mpeg case for example) */
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@ -4340,6 +4344,7 @@ const OptionDef options[] = {
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{ "skip_cmp", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&frame_skip_cmp}, "frame skip compare function", "compare function" },
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{ "gray", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, { (void *)&gray_only }, "encode/decode grayscale" },
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{ "newvideo", OPT_VIDEO, {(void*)opt_new_video_stream}, "add a new video stream to the current output stream" },
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{ "genpts", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, { (void *)&genpts }, "generate pts" },
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/* audio options */
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{ "ab", HAS_ARG | OPT_AUDIO, {(void*)opt_audio_bitrate}, "set audio bitrate (in kbit/s)", "bitrate", },
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6
ffplay.c
6
ffplay.c
@ -210,6 +210,7 @@ static int step = 0;
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static int thread_count = 1;
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static int workaround_bugs = 1;
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static int fast = 0;
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static int genpts = 0;
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static int lowres = 0;
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static int idct = FF_IDCT_AUTO;
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static enum AVDiscard skip_frame= AVDISCARD_DEFAULT;
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@ -1802,6 +1803,10 @@ static int decode_thread(void *arg)
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#else
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use_play = 0;
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#endif
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if(genpts)
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ic->flags |= AVFMT_FLAG_GENPTS;
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if (!use_play) {
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err = av_find_stream_info(ic);
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if (err < 0) {
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@ -2356,6 +2361,7 @@ const OptionDef options[] = {
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{ "bug", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&workaround_bugs}, "workaround bugs", "" },
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{ "vismv", HAS_ARG | OPT_EXPERT, {(void*)opt_vismv}, "visualize motion vectors", "" },
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{ "fast", OPT_BOOL | OPT_EXPERT, {(void*)&fast}, "non spec compliant optimizations", "" },
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{ "genpts", OPT_BOOL | OPT_EXPERT, {(void*)&genpts}, "generate pts", "" },
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{ "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&lowres}, "", "" },
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{ "skiploop", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_loop_filter}, "", "" },
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{ "skipframe", OPT_INT | HAS_ARG | OPT_EXPERT, {(void*)&skip_frame}, "", "" },
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@ -5,8 +5,8 @@
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extern "C" {
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#endif
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#define LIBAVFORMAT_VERSION_INT ((49<<16)+(0<<8)+0)
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#define LIBAVFORMAT_VERSION 49.0.0
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#define LIBAVFORMAT_VERSION_INT ((49<<16)+(1<<8)+0)
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#define LIBAVFORMAT_VERSION 49.1.0
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#define LIBAVFORMAT_BUILD LIBAVFORMAT_VERSION_INT
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#define LIBAVFORMAT_IDENT "Lavf" AV_STRINGIFY(LIBAVFORMAT_VERSION)
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@ -332,6 +332,8 @@ typedef struct AVFormatContext {
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/* number of times to loop output in formats that support it */
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int loop_output;
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int flags;
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#define AVFMT_FLAG_GENPTS 0x0001 ///< generate pts if missing even if it requires parsing future frames
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} AVFormatContext;
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typedef struct AVPacketList {
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@ -955,16 +955,66 @@ static int av_read_frame_internal(AVFormatContext *s, AVPacket *pkt)
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int av_read_frame(AVFormatContext *s, AVPacket *pkt)
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{
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AVPacketList *pktl;
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int eof=0;
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const int genpts= s->flags & AVFMT_FLAG_GENPTS;
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pktl = s->packet_buffer;
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if (pktl) {
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/* read packet from packet buffer, if there is data */
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*pkt = pktl->pkt;
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s->packet_buffer = pktl->next;
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av_free(pktl);
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return 0;
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} else {
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return av_read_frame_internal(s, pkt);
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for(;;){
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pktl = s->packet_buffer;
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if (pktl) {
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AVPacket *next_pkt= &pktl->pkt;
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AVStream *st= s->streams[ next_pkt->stream_index ];
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if(genpts && next_pkt->dts != AV_NOPTS_VALUE){
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while(pktl && next_pkt->pts == AV_NOPTS_VALUE){
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if( pktl->pkt.stream_index == next_pkt->stream_index
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&& next_pkt->dts < pktl->pkt.dts
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&& pktl->pkt.pts != pktl->pkt.dts //not b frame
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/*&& pktl->pkt.dts != AV_NOPTS_VALUE*/){
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next_pkt->pts= pktl->pkt.dts;
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}
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pktl= pktl->next;
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}
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pktl = s->packet_buffer;
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}
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if( next_pkt->pts != AV_NOPTS_VALUE
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|| next_pkt->dts == AV_NOPTS_VALUE
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|| !genpts || eof){
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/* read packet from packet buffer, if there is data */
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*pkt = *next_pkt;
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s->packet_buffer = pktl->next;
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av_free(pktl);
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return 0;
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}
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}
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if(genpts){
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AVPacketList **plast_pktl= &s->packet_buffer;
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int ret= av_read_frame_internal(s, pkt);
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if(ret<0){
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if(pktl && ret != -EAGAIN){
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eof=1;
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continue;
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}else
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return ret;
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}
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/* duplicate the packet */
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if (av_dup_packet(pkt) < 0)
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return AVERROR_NOMEM;
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while(*plast_pktl) plast_pktl= &(*plast_pktl)->next; //FIXME maybe maintain pointer to the last?
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pktl = av_mallocz(sizeof(AVPacketList));
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if (!pktl)
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return AVERROR_NOMEM;
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/* add the packet in the buffered packet list */
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*plast_pktl = pktl;
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pktl->pkt= *pkt;
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}else{
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assert(!s->packet_buffer);
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return av_read_frame_internal(s, pkt);
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}
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}
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}
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