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

aviad rozenhek aviadr1 at gmail.com
Tue Aug 23 12:55:47 CEST 2011

On Tue, Aug 23, 2011 at 13:33, Howard Chu <hyc at highlandsun.com> wrote:

> 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>
>> <http://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 <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?

I'm sorry but I don't know. its a live stream, not a VOD, and I'm not the
one running the server.
RTMPDump and ffmpeg/libav are the tools I know to analyze the stream

Aviad Rozenhek
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