[Ffmpeg-devel] [PATCH] AVOption defaults sync

Baptiste Coudurier baptiste.coudurier
Thu Sep 14 15:13:58 CEST 2006

Panagiotis Issaris wrote:
> [...]
> Well, the MPEG-4 codec is used by default, so I would assume it would
> be most interesting to give it a "good" value for MPEG-4 encoding, and
> ignore f.e. the DVD specs. If one wants DVD compliance, one will most
> likely use the -target (pal|ntsc)-dvd anyway. Remains to be seen what
> a "good" GOP size for MPEG-4 would be... :)
> I vaguely recall someone doing tests altering various libavcodec encoding 
> parameters and comparing the resulting visual quality and/or PSNR. I could
> search and have a look at that, but I'm not sure if it is still relevant. 
> I think I saw this webpage some years ago, and FFmpeg's MPEG-4 encoding might 
> have changed considerably. Would it be a good idea to look at it, or would
> it not be relevant anymore?

I also recall of an idea to have defaults for each codec. That would 
definitely be a great solution.

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