[FFmpeg-user] Why isn't "-q:v <value>" mapped to "-x264opts crf=<value>"?

Nicolas George nicolas.george at normalesup.org
Sat Mar 16 11:09:42 CET 2013


Le sextidi 26 ventôse, an CCXXI, Teemu Likonen a écrit :
> It seems that with most codecs we can use "-q <value>" option to define
> constant quality encoding.

That is a common misconception. -q means constant quantizer, not constant
quality; most codec do not have a constant quality encoding, constant
quantizer is one of the best approximation but not the same.

Regards,

-- 
  Nicolas George
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 198 bytes
Desc: Digital signature
URL: <http://ffmpeg.org/pipermail/ffmpeg-user/attachments/20130316/379b434d/attachment.asc>


More information about the ffmpeg-user mailing list