[FFmpeg-user] mjpeg "quality"

Lou lou at lrcd.com
Sun Mar 3 20:18:02 CET 2013

On Sun, 03 Mar 2013 19:41:15 +0100
Erik Slagter <erik at slagter.name> wrote:

> Hi,
> I am probably overlooking something or plain stupid, this is the thing, 
> whatever "-q" value ("-q 1", "-q 30") I supply to the ffmpeg command, 
> with the mjpeg encoder, the output remains the same size and ffmpeg 
> reports "q=0.0" during recording. When I change "-vcodec mjpeg" to 
> "-vcodec mpeg2video", it works like expected, but I don't want 
> mpeg2video, I want mjpeg ;-)
> Also in the past (at least before july 2012) this used to work, afaik...
> TIA!

Please include your full ffmpeg command(s) and the complete ffmpeg
console output(s).

Note that plain "-q" is ambiguous, and should be specified with the
appropriate stream type, such as "-q:v".

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