[FFmpeg-devel] DNxHD and qmax

Joseph Artsimovich joseph at mirriad.com
Wed Feb 1 12:13:46 CET 2012

The default value for qmax in FFMpeg is 31, with FFmpeg's DNxHD encoder 
actually enforcing it. Now, enforcing qmax in a CBR codec makes no 
sence, as no one wants encoding to fail just because the minimum allowed 
quality specified by qmax doesn't fit into the given bitrate. The DNxHD 
specification actually specifies 1024 as the maximum quantization scale 

Should I submit a patch making the DNxHD encoder ignore qmax?

Joseph Artsimovich
Senior C++ Applications Developer
MirriAd Ltd

More information about the ffmpeg-devel mailing list