[FFmpeg-devel] [PATCH] avformat: increase first_frames threshold for mp3, ac3
michael at niedermayer.cc
Sat Jul 18 05:06:25 CEST 2015
On Fri, Jul 17, 2015 at 10:23:11PM -0400, Ganesh Ajjanagadde wrote:
> Attached patch is a quick fix for Ticket4723.
> I have a couple of issues with this though:
> 1. It seems like probe thresholds are essentially tweaked based on
> what files are encountered, and that these can't be set precisely
> according to a spec.
> Is this correct?
> 2. Comment in the file mentions keeping probing in sync across ac3/mp3.
> I kept this in mind for the patch, but don't know the rationale for this.
> 2. I tested the patch with fate and against the ticket.
> However, ideally this should be tested against a variety of mp3/ac3 files,
> to make sure the probing still works even with this stricter threshold
> for detection.
> Where can I find comprehensive sample files for this purpose,
> and more generally audio/video files for ffmpeg development?
i tested it a bit and it seems fine
you can find samples at http://samples.ffmpeg.org/
Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
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