[Ffmpeg-devel] Differences between mencoder and ffmpeg whenencoding using x264 (original) (raw)

Jindrich Makovicka makovick
Sun Feb 19 21:12:41 CET 2006

Erik Slagter wrote:

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.

yes, just dump the x264 parameters using x264_param2string() and see.

-- Jindrich Makovicka

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