[FFmpeg-user] The Magic Microsecond

Roger Pack rogerdpack2 at gmail.com
Mon Jul 9 20:03:25 CEST 2012

> The 22 fps was completely unacceptable and we moved to MEncoder, which
> did not have the problem. By pure chance, I discovered a few weeks ago
> how to speed up ffmpeg-r32754 dramatically: skip the first microsecond!
> -ss 0.000001.
> Result:
> frame= 6010 fps=330 q=23.8 Lsize=   12809kB time=00:04:00.48 \
>         bitrate= 436.3kbits/s
> Fps: 330. Now we are talking! 15 times as fast.
> ffmpeg-20120706 (Zeranoe build) does not behave as badly:
> frame= 6012 fps=310 q=24.4 Lsize=   12813kB time=00:04:00.48 \
>         bitrate= 436.5kbits/s

Maybe these are different speed-wise because of different "q" levels
reported?  Now why, that may be different...

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