[FFmpeg-user] wav concat woes

Sean Darcy seandarcy2 at gmail.com
Sun May 4 17:20:04 CEST 2014

On 05/04/2014 06:03 AM, Nicolas George wrote:
> L'octidi 8 floréal, an CCXXII, Sean Darcy a écrit :
>>    Duration: 00:05:00.13, bitrate: 1411 kb/s
> Looking carefully, you can see the origin of the problem here: it is lacking
> the "start: 0.000000" indication.
> I do not understand yet why WAVE and a few other formats do not detect
> start_time=0, but the concat demuxer relies on it and can not work without
> it. I do not know which of the concat or WAVE demuxer is wrong.

So just to clarify, is the problem simply a mass of warnings even though 
the output is correct? or is there a problem with the output?

I ended up piping to ffmpeg from sox, so I never used the ffmpeg concat 


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