[FFmpeg-user] LLossless (10 Bit RGB 444) and (10 Bit YUV 422) Compression

Carl Eugen Hoyos cehoyos at ag.or.at
Sun Dec 28 00:51:45 CET 2014

Jason Freets <jasonslife <at> hotmail.com> writes:

> I'd like to point out that I never had success 
> even converting from r10k to FFV1. 

Works fine here.

> What I mean by this, is that after converting my 
> original r10k to FFV1 I was never able to play 
> the FFV1 file with, for example, VLC.

Apart from "wrong mailing list":
Didn't you test FFplay? Or MPlayer?
Or ffmpeg -i outffv1.avi out.mov?

> My conclusion at the time, just a day or two, 
> was FFMpeg just didn't deal with r10k.

This makes no sense, sorry.

> Yet, I realize you've made improvements since too.

As said, the only difference the two changes will 
make is that they allow to prove the losslessness 
with -f framecrc (and similar). They do not change 
the archive copies you could have made before.
(But I admit it was difficult to test if the archive 
copies are really lossless, this is what I usually 
request from the so-called "professional" archive 
solutions that apparently are never lossless but 
nobody requested this so far. In any case, the 
fixes were trivial.)

Carl Eugen

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