[FFmpeg-user] Fastest lossless codec and settings.

Zsolt dqeswn at gmail.com
Thu Jan 1 18:14:15 CET 2015

2015-01-01 1:15 GMT+01:00 Nicolas George <george at nsup.org>:

> In terms of CPU cost, nothing will beat rawvideo, of course. But for some
> reason, I believe this solution will not satisfy you.

Interestingly even rawvideo and the other uncompressed formats I tried
resulted in high max/near-max CPU usage. I would have expected low cpu
usage and I/O issues. Even if it's a lot of data muxing can't be that
expensive, right?

2015-01-01 11:37 GMT+01:00 Nicolas George <george at nsup.org>:

> Le duodi 12 nivôse, an CCXXIII, Marcus Johnson a écrit :
> > No offense, but YUV420 is not at all lossless, only 444 is lossless
> For screen capture, i.e. with a 8 bpp RGB source, 444p8 is not lossless.

Is there a circumstance where YUV can losslessly sotore/restore the
original image? The is issue is rounding errors, right?

Lot of recommendations, which is cool. But isn't there some sort of
agreement which is the fastest lossless codec/setting? (Not counting
uncompressed formats)

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