[FFmpeg-cvslog] avformat/dump: Print stream start offsets for input streams

[softworkz]

ffmpeg | branch: master | softworkz <softworkz at hotmail.com> | Sat Feb 23 04:59:10 2019 +0100| [02d7384ed5eec0152056c081b536c16cb86e6361] | committer: softworkz

avformat/dump: Print stream start offsets for input streams

Seeing the offset of video and audio streams to each other is often
a useful metric in diagnosing and understanding issues with playback
or transcoding.
This commit adds those offsets to the stream info print.

Signed-off-by: softworkz <softworkz at hotmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=02d7384ed5eec0152056c081b536c16cb86e6361
---

 libavformat/dump.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libavformat/dump.c b/libavformat/dump.c
index 3d37623a41..8c7db7b275 100644
--- a/libavformat/dump.c
+++ b/libavformat/dump.c
@@ -678,6 +678,11 @@ FF_ENABLE_DEPRECATION_WARNINGS
             print_fps(1 / av_q2d(st->time_base), "tbn", log_level);
     }
 
+    if (st->start_time != AV_NOPTS_VALUE && st->start_time != 0 && st->time_base.den && st->time_base.num) {
+        const double stream_start = av_q2d(st->time_base) * st->start_time;
+        av_log(NULL, AV_LOG_INFO, ", Start-Time %.3fs", stream_start);
+    }
+
     dump_disposition(st->disposition, log_level);
     av_log(NULL, log_level, "\n");