[FFmpeg-devel] [Cellar] [PATCH] avcodec/ffv1: Support for RGBA64 and GBRAP16

Michael Niedermayer michael at niedermayer.cc
Sat Feb 3 15:48:24 EET 2018


On Sat, Feb 03, 2018 at 01:58:10PM +0100, Reto Kromer wrote:
> Michael Niedermayer wrote:
> 
> >To clarify my suggestion,
> >the algorithm should be tuned for high bit depth before using
> >it for long term storage. This would be v4 (or later).
> >Personally i would wait for v4 and not use v3 for high bit
> >depth. Which is why i think its not smart to extend the v3
> >implementation with more high depth support.
> 
> The issue is that in the real world we need to use the format
> now. Otherwise the film archives must use MXF/DPX instead of
> Матрёшка/FFV1. That's the point!

Then using the v3 16bit is probably the most realistic option.
And jeromes patch should probably be applied

I hope this will not reduce interrest in working on a improved 
9-16bit mode in v4.


[...]

> Last but not least, since almost two years now it's impossible
> to work on the development of FFV1 v4. It's always the wrong
> time and/or the wrong place every time I am doing something for
> this cause. Why? This is extremely frustrating.

I want to understand this too. IMO v4 development should be more
important than or at least equally to the v3 draft polishing and neither 
should block the other.


-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Republics decline into democracies and democracies degenerate into
despotisms. -- Aristotle
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