[FFmpeg-user] what are the ffmpeg default options for media conversion?
atish.kathpal at gmail.com
Mon Feb 27 05:15:02 CET 2012
Thanks for the reply.
On Sat, Feb 25, 2012 at 2:39 AM, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
> Atish Kathpal <atish.kathpal <at> gmail.com> writes:
> > When I say "ffmpeg -r 25 -s 1920x1080 -i Source.yuv -sameq Dest.avi", I
> > a bigger Dest.avi as compared to when I just say, ffmpeg -r 25 -s
> > -i Source.yuv Dest.avi". What was teh default quality taken as in the
> > case?
> The -sameq has a meaning that you may find counter-intuitive, it does not
> "same quality" (but same quantizer) and probably does not make sense for
> rawvideo input.
> > I know that there is an option "-q" ranging from 1 to 31 (with 1 being
> > quality). So what is the default quality taken as for the destination
> > when -q or -sameq not specified explicitly?
> The default is not to use constant quality (as implied by -q) but CBR
> (which btw
> does not mean fixed frame size) at 200kb/s iirc.
> Carl Eugen
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
More information about the ffmpeg-user