[rtmpdump] BUG: timestamps on the first few seconds of content are all 0

Howard Chu hyc at highlandsun.com
Tue Aug 23 12:33:59 CEST 2011

aviad rozenhek wrote:
> I'm testing RTMPDump with a live stream
> rtmp://cp102272.live.edgefcs.net/live/tbn_hd_2@29502
> <http://cp102272.live.edgefcs.net/live/tbn_hd_2@29502> --live, and when I look
> at the result file, I see that all the A/V frames received during the first
> few seconds of streaming have dts=0.
> I first saw this problem when using ffmpeg/libav, therefore I opened a bug #12
> for it in libav bugtracker <https://bugzilla.libav.org/show_bug.cgi?id=12>
> for example, I can either use RTMPDump to download the stream to an flv file,
> and then probe it using ffprobe to look at timestamp, or just use ffprobe
> [which is RTMP-enabled] to look directly at the timestamps. in any case I see
> that there is a significant amount of audio and video frames that all have
> non-increasing dts=0 timestamp
> i'm attaching a dump of the packets as packet.txt

What timestamps are in the actual RTMP stream?

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