[Ffmpeg-devel] Differences between mencoder and ffmpeg whenencoding using x264

Erik Slagter erik
Sun Feb 19 19:22:52 CET 2006

On Sun, 2006-02-19 at 17:33 +0000, Robert Swain wrote:

> Yet again someone has noted that the x264 defaults in FFmpeg are lacking. This 
> is giving a bad impression of x264. :/
> My recommendation for anyone using x264 in FFmpeg would be to check the x264 
> command line defaults and explicitly specify all parameters to FFmpeg using 
> the defaults from the x264 CLI and whatever alterations one may want to make.
> Just setting the output codec to x264 and setting a bit rate or other 
> mechanism is insufficient and yet so many people do it. People expect the 
> defaults to yield good quality such that they can specify a bit rate to 
> evaluate the capability of a codec and it's just not the case.
> *sighs*
> I really should look into this. Maybe we should start a discussion on how to 
> tackle this or continue the presets discussion such that this may be resolved 
> for all codecs used in FFmpeg? Or at least the ones that require it.

Good to know I am not completely mad ;-)

I will have a shallow look at this shortly. It shouldn't be too
difficult to see which x264 parameters are set by ffmpeg vs. mencoder.
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