[FFmpeg-user] Different behaviour decoding with ffplay or ffmpeg

David Cassany Viladomat david.cassany at i2cat.net
Thu Mar 7 16:40:49 CET 2013


Hi Carl,

Thanks for your answer, it looks like you are right about performace,
reducing de frame rate to 5 or even 15 it gets much much better. Source has
a framerate of 30 so it might be too much for my processor.

I'll check right now the head of the git repository and see what happens.
By the way, what -strict and -2 flags means?

Thanks again!!
David


2013/3/7 Carl Eugen Hoyos <cehoyos at ag.or.at>

> > > Basically while using ffplay everything works as expected
> > > when using ffmpeg to decode and encode to file it doesn't
> > > behave properly, it always suffer a terrible packets loss.
> >
> > Since this could be a performance problem, could you test
> > the following:
> > $ ffmpeg -i rtsp://... -r 5 -strict -2 out.mp4
>
> And please test current git head, some changes were
> committed recently.
>
> Carl Eugen
>
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