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ffmpeg.c: implement -debug_ts option
Mostly useful for debugging purposes.
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@ -230,6 +230,14 @@ Specify the preset for matching stream(s).
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@item -stats (@emph{global})
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Print encoding progress/statistics. On by default.
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@item -debug_ts (@emph{global})
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Print timestamp information. It is off by default. This option is
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mostly useful for testing and debugging purposes, and the output
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format may change from one version to another, so it should not be
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employed by portable scripts.
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See also the option @code{-fdebug ts}.
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@item -attach @var{filename} (@emph{output})
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Add an attachment to the output file. This is supported by a few formats
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like Matroska for e.g. fonts used in rendering subtitles. Attachments
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31
ffmpeg.c
31
ffmpeg.c
@ -49,6 +49,7 @@
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#include "libavutil/avstring.h"
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#include "libavutil/libm.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/timestamp.h"
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#include "libavformat/os_support.h"
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#include "libswresample/swresample.h"
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@ -174,6 +175,7 @@ static float dts_delta_threshold = 10;
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static float dts_error_threshold = 3600*30;
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static int print_stats = 1;
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static int debug_ts = 0;
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static uint8_t *audio_buf;
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static unsigned int allocated_audio_buf_size;
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@ -1107,6 +1109,13 @@ static int encode_audio_frame(AVFormatContext *s, OutputStream *ost,
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av_free_packet(&pkt);
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}
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if (debug_ts) {
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av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
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"pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
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av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
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av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
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}
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return ret;
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}
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@ -1611,6 +1620,13 @@ static void do_video_out(AVFormatContext *s, OutputStream *ost,
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if (pkt.dts != AV_NOPTS_VALUE)
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pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
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if (debug_ts) {
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av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
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"pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
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av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
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av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
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}
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if (format_video_sync == VSYNC_DROP)
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pkt.pts = pkt.dts = AV_NOPTS_VALUE;
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@ -3003,10 +3019,16 @@ static int transcode(OutputFile *output_files, int nb_output_files,
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if (pkt.dts != AV_NOPTS_VALUE)
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pkt.dts *= ist->ts_scale;
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//fprintf(stderr, "next:%"PRId64" dts:%"PRId64"/%"PRId64" off:%"PRId64" %d\n",
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// ist->next_dts,
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// ist->dts, av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q), input_files[ist->file_index].ts_offset,
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// ist->st->codec->codec_type);
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if (debug_ts) {
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av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
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"next_pts:%s next_pts_time:%s pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s off:%"PRId64"\n",
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ist_index, av_get_media_type_string(ist->st->codec->codec_type),
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av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &ist->st->time_base),
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av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
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av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
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input_files[ist->file_index].ts_offset);
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}
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if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE && !copy_ts) {
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int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
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int64_t delta = pkt_dts - ist->next_dts;
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@ -4979,6 +5001,7 @@ static const OptionDef options[] = {
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{ "stats", OPT_BOOL, {&print_stats}, "print progress report during encoding", },
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{ "attach", HAS_ARG | OPT_FUNC2, {(void*)opt_attach}, "add an attachment to the output file", "filename" },
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{ "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(dump_attachment)}, "extract an attachment into a file", "filename" },
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{ "debug_ts", OPT_BOOL | OPT_EXPERT, {&debug_ts}, "print timestamp debugging info" },
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/* video options */
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{ "vframes", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_frames}, "set the number of video frames to record", "number" },
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