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Extract timestamp correction code from ffplay.c to cmdutils.c
Originally committed as revision 25241 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
parent
6d19fd5c26
commit
7a8bfa5d67
27
cmdutils.c
27
cmdutils.c
@ -677,3 +677,30 @@ int read_file(const char *filename, char **bufptr, size_t *size)
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fclose(f);
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return 0;
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}
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void init_pts_correction(PtsCorrectionContext *ctx)
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{
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ctx->num_faulty_pts = ctx->num_faulty_dts = 0;
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ctx->last_pts = ctx->last_dts = INT64_MIN;
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}
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int64_t guess_correct_pts(PtsCorrectionContext *ctx, int64_t reordered_pts, int64_t dts)
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{
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int64_t pts = AV_NOPTS_VALUE;
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if (dts != AV_NOPTS_VALUE) {
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ctx->num_faulty_dts += dts <= ctx->last_dts;
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ctx->last_dts = dts;
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}
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if (reordered_pts != AV_NOPTS_VALUE) {
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ctx->num_faulty_pts += reordered_pts <= ctx->last_pts;
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ctx->last_pts = reordered_pts;
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}
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if ((ctx->num_faulty_pts<ctx->num_faulty_dts || dts == AV_NOPTS_VALUE)
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&& reordered_pts != AV_NOPTS_VALUE)
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pts = reordered_pts;
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else
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pts = dts;
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return pts;
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}
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24
cmdutils.h
24
cmdutils.h
@ -226,4 +226,28 @@ int read_yesno(void);
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*/
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int read_file(const char *filename, char **bufptr, size_t *size);
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typedef struct {
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int64_t num_faulty_pts; /// Number of incorrect PTS values so far
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int64_t num_faulty_dts; /// Number of incorrect DTS values so far
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int64_t last_pts; /// PTS of the last frame
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int64_t last_dts; /// DTS of the last frame
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} PtsCorrectionContext;
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/**
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* Resets the state of the PtsCorrectionContext.
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*/
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void init_pts_correction(PtsCorrectionContext *ctx);
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/**
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* Attempts to guess proper monotonic timestamps for decoded video frames
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* which might have incorrect times. Input timestamps may wrap around, in
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* which case the output will as well.
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*
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* @param pts The pts field of the decoded AVPacket, as passed through
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* AVCodecContext.reordered_opaque
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* @param dts The dts field of the decoded AVPacket
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* @return One of the input values. May be AV_NOPTS_VALUE.
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*/
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int64_t guess_correct_pts(PtsCorrectionContext *ctx, int64_t pts, int64_t dts);
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#endif /* FFMPEG_CMDUTILS_H */
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35
ffplay.c
35
ffplay.c
@ -207,10 +207,7 @@ typedef struct VideoState {
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char filename[1024];
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int width, height, xleft, ytop;
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int64_t faulty_pts;
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int64_t faulty_dts;
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int64_t last_dts_for_fault_detection;
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int64_t last_pts_for_fault_detection;
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PtsCorrectionContext pts_ctx;
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#if CONFIG_AVFILTER
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AVFilterContext *out_video_filter; ///<the last filter in the video chain
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@ -1286,7 +1283,7 @@ retry:
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if (is->audio_st && is->video_st)
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av_diff = get_audio_clock(is) - get_video_clock(is);
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printf("%7.2f A-V:%7.3f s:%3.1f aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r",
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get_master_clock(is), av_diff, FFMAX(is->skip_frames-1, 0), aqsize / 1024, vqsize / 1024, sqsize, is->faulty_dts, is->faulty_pts);
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get_master_clock(is), av_diff, FFMAX(is->skip_frames-1, 0), aqsize / 1024, vqsize / 1024, sqsize, is->pts_ctx.num_faulty_dts, is->pts_ctx.num_faulty_pts);
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fflush(stdout);
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last_time = cur_time;
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}
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@ -1565,8 +1562,7 @@ static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacke
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is->video_current_pos= -1;
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SDL_UnlockMutex(is->pictq_mutex);
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is->last_dts_for_fault_detection=
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is->last_pts_for_fault_detection= INT64_MIN;
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init_pts_correction(&is->pts_ctx);
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is->frame_last_pts= AV_NOPTS_VALUE;
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is->frame_last_delay = 0;
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is->frame_timer = (double)av_gettime() / 1000000.0;
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@ -1583,25 +1579,18 @@ static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacke
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pkt);
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if (got_picture) {
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if(pkt->dts != AV_NOPTS_VALUE){
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is->faulty_dts += pkt->dts <= is->last_dts_for_fault_detection;
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is->last_dts_for_fault_detection= pkt->dts;
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}
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if(frame->reordered_opaque != AV_NOPTS_VALUE){
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is->faulty_pts += frame->reordered_opaque <= is->last_pts_for_fault_detection;
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is->last_pts_for_fault_detection= frame->reordered_opaque;
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}
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if (decoder_reorder_pts == -1) {
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*pts = guess_correct_pts(&is->pts_ctx, frame->reordered_opaque, pkt->dts);
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} else if (decoder_reorder_pts) {
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*pts = frame->reordered_opaque;
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} else {
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*pts = pkt->dts;
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}
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if( ( decoder_reorder_pts==1
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|| (decoder_reorder_pts && is->faulty_pts<is->faulty_dts)
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|| pkt->dts == AV_NOPTS_VALUE)
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&& frame->reordered_opaque != AV_NOPTS_VALUE)
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*pts= frame->reordered_opaque;
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else if(pkt->dts != AV_NOPTS_VALUE)
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*pts= pkt->dts;
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else
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if (*pts == AV_NOPTS_VALUE) {
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*pts = 0;
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}
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}
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// if (len1 < 0)
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// break;
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