[FFmpeg-user] Recommended x.264 preset for live x.264 encoding

Christian Ebert blacktrash at gmx.net
Wed Feb 15 07:40:09 CET 2012

* Stas Oskin on Tuesday, February 14, 2012 at 20:12:48 +0200
> Hi.
> Yes, except using the correct syntax that I had in my email, rather
>> than the gobbledegook you had. Eg '-c:v libx264', not '-c:libx264',
>> '-profile:v baseline', not '-profile:baseline' etc. See the example
>> below again.
> Thanks for clarification, I guess it's the new format ffmpeg accepts? As
> all previous versions haven't required the v param.
> BTW when I encode for iphone/ipad I use a higher level than that, Main at L3.0
> I chose this according to planned bit-rate (500 Kbps), but will try this
> one as well.

I used to be able to specify:

-c:v libx264 -preset:v <whatever> -pre:v ipod640

but now get:
File for preset 'ipod640' not found
even though libx264-ipod640.ffpreset and libx264-ipod320.ffpreset
(classic) are still distributed and installed at

$ cat /usr/local/share/ffmpeg/libx264-ipod640.ffpreset

A pity that ffmpeg so often breaks existing scripts.

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