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lavf/utils: support duration estimate method dump

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add new function duration_estimate_name to dump duration estimate
method, it's will help to debug some duration issue.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Jun Zhao <barryjzhao@tencent.com>
This commit is contained in:
Jun Zhao
2019-09-29 11:58:43 +08:00
parent f5e867570e
commit 6ca3d34ff8
1 changed files with 14 additions and 1 deletions
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15
libavformat/utils.c
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@@ -2934,6 +2934,18 @@ skip_duration_calc:
} }
} }
/* 1:1 map to AVDurationEstimationMethod */
static const char *duration_name[] = {
[AVFMT_DURATION_FROM_PTS] = "pts",
[AVFMT_DURATION_FROM_STREAM] = "stream",
[AVFMT_DURATION_FROM_BITRATE] = "bit rate",
};
static const char *duration_estimate_name(enum AVDurationEstimationMethod method)
{
return duration_name[method];
}
static void estimate_timings(AVFormatContext *ic, int64_t old_offset) static void estimate_timings(AVFormatContext *ic, int64_t old_offset)
{ {
int64_t file_size; int64_t file_size;
@@ -2979,9 +2991,10 @@ static void estimate_timings(AVFormatContext *ic, int64_t old_offset)
(double) st->duration * av_q2d(st->time_base)); (double) st->duration * av_q2d(st->time_base));
} }
av_log(ic, AV_LOG_TRACE, av_log(ic, AV_LOG_TRACE,
"format: start_time: %0.3f duration: %0.3f bitrate=%"PRId64" kb/s\n", "format: start_time: %0.3f duration: %0.3f (estimate from %s) bitrate=%"PRId64" kb/s\n",
(double) ic->start_time / AV_TIME_BASE, (double) ic->start_time / AV_TIME_BASE,
(double) ic->duration / AV_TIME_BASE, (double) ic->duration / AV_TIME_BASE,
duration_estimate_name(ic->duration_estimation_method),
(int64_t)ic->bit_rate / 1000); (int64_t)ic->bit_rate / 1000);
} }
} }