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ffmpeg.c: implement -debug_ts option

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Mostly useful for debugging purposes.
This commit is contained in:
Stefano Sabatini 2012-01-20 17:06:26 +01:00
parent 186923758d
commit 5d12b83ff1
2 changed files with 35 additions and 4 deletions
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8
doc/ffmpeg.texi
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@ -230,6 +230,14 @@ Specify the preset for matching stream(s).
@item -stats (@emph{global})
Print encoding progress/statistics. On by default.
@item -debug_ts (@emph{global})
Print timestamp information. It is off by default. This option is
mostly useful for testing and debugging purposes, and the output
format may change from one version to another, so it should not be
employed by portable scripts.
See also the option @code{-fdebug ts}.
@item -attach @var{filename} (@emph{output})
Add an attachment to the output file. This is supported by a few formats
like Matroska for e.g. fonts used in rendering subtitles. Attachments

31
ffmpeg.c
View File

@ -49,6 +49,7 @@
#include "libavutil/avstring.h"
#include "libavutil/libm.h"
#include "libavutil/imgutils.h"
#include "libavutil/timestamp.h"
#include "libavformat/os_support.h"
#include "libswresample/swresample.h"
@ -174,6 +175,7 @@ static float dts_delta_threshold = 10;
static float dts_error_threshold = 3600*30;
static int print_stats = 1;
static int debug_ts = 0;
static uint8_t *audio_buf;
static unsigned int allocated_audio_buf_size;
@ -1107,6 +1109,13 @@ static int encode_audio_frame(AVFormatContext *s, OutputStream *ost,
av_free_packet(&pkt);
}
if (debug_ts) {
av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
"pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
}
return ret;
}
@ -1611,6 +1620,13 @@ static void do_video_out(AVFormatContext *s, OutputStream *ost,
if (pkt.dts != AV_NOPTS_VALUE)
pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
if (debug_ts) {
av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
"pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
}
if (format_video_sync == VSYNC_DROP)
pkt.pts = pkt.dts = AV_NOPTS_VALUE;
@ -3003,10 +3019,16 @@ static int transcode(OutputFile *output_files, int nb_output_files,
if (pkt.dts != AV_NOPTS_VALUE)
pkt.dts *= ist->ts_scale;
//fprintf(stderr, "next:%"PRId64" dts:%"PRId64"/%"PRId64" off:%"PRId64" %d\n",
// ist->next_dts,
// ist->dts, av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q), input_files[ist->file_index].ts_offset,
// ist->st->codec->codec_type);
if (debug_ts) {
av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
"next_pts:%s next_pts_time:%s pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s off:%"PRId64"\n",
ist_index, av_get_media_type_string(ist->st->codec->codec_type),
av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &ist->st->time_base),
av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
input_files[ist->file_index].ts_offset);
}
if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE && !copy_ts) {
int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
int64_t delta = pkt_dts - ist->next_dts;
@ -4979,6 +5001,7 @@ static const OptionDef options[] = {
{ "stats", OPT_BOOL, {&print_stats}, "print progress report during encoding", },
{ "attach", HAS_ARG | OPT_FUNC2, {(void*)opt_attach}, "add an attachment to the output file", "filename" },
{ "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(dump_attachment)}, "extract an attachment into a file", "filename" },
{ "debug_ts", OPT_BOOL | OPT_EXPERT, {&debug_ts}, "print timestamp debugging info" },
/* video options */
{ "vframes", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_frames}, "set the number of video frames to record", "number" },