[FFmpeg-user] Large negative pts / dts from IP cameras

Rhodri James rhodri at kynesim.co.uk
Fri Sep 2 12:58:49 CEST 2011


On Thu, 01 Sep 2011 22:10:26 +0100, Narf! <narffy at gmail.com> wrote:
> On Thu, Sep 1, 2011 at 1:24 PM, Roger Pack <rogerdpack2 at gmail.com> wrote:
>>> "Application provided invalid, non monotonically increasing dts to
>>> muxer in stream 0: 36000 >= -102295557451260"
>>
>> integer overflow?
>
> That's what I keep thinking too. However, the next timestamp value in
> Wireshark is small (like 45000) and I believe the pts is a 64 bit
> integer.

PTS is a 33-bit integer in H.222.  (Yes, I mean 33.  It's weird.)
Possibly something sign-extended that shouldn't have?

-- 
Rhodri James
Kynesim Ltd


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