[FFmpeg-devel] [PATCH] libutvideo: remove libutvideo wrapper

[Michael Niedermayer]

On Sat, Oct 18, 2014 at 03:30:33AM -0400, Stephen Hutchinson wrote:
> On Thu, Oct 16, 2014 at 11:02 PM, Michael Niedermayer <michaelni at gmx.at> wrote:
> > On Thu, Oct 16, 2014 at 04:29:13PM -0800, Lou Logan wrote:
> >> Native decoder and encoder exists.
> >>
> >> Signed-off-by: Lou Logan <lou at lrcd.com>
> >> ---
> >> I don't know if libutvideo has any advantages over native; maybe Derek
> >> can elaborate (and answer other questions).
> >>
> >> Native seemed faster for decoding and encoding in my lazy, quick tests.
> >>
> >> Mostly a boredom patch/RFC...
> >>
> >> Todo:
> >> =====
> >> * I probably forgot to remove something.
> >> * Update Changelog.
> >> * Version bump.
> >>
> >>  LICENSE.md                   |   3 -
> >>  MAINTAINERS                  |   1 -
> >>  configure                    |   6 --
> >>  libavcodec/Makefile          |   4 -
> >>  libavcodec/allcodecs.c       |   1 -
> >>  libavcodec/libutvideo.h      |  70 ------------
> >>  libavcodec/libutvideodec.cpp | 212 -------------------------------------
> >>  libavcodec/libutvideoenc.cpp | 246 -------------------------------------------
> >
> > this removes the possibility to easily test our decoder against
> > libutvideo.
> > Also iam happy to volunteer to take over maintainership for the
> > libutvideo wraper if that is wanted, as i suspect that would be
> > less work than fixing future issues in utvideo without an easy
> > accessible reference
> >
> > [...]
> >
> 
> From my perspective as the one taking the Ut Video release zips
> and updating libutvideo itself, I don't particularly care whether the
> lib wrapper is removed.  Not that I can provide any insight beyond
> that, since I only make sure the lib still compiles.
> 
> libutvideoenc is locked to only one prediction type, and the speed
> issues in either the encoder or decoder wrapper could (probably are)
> the side-effect of libutvideo not enabling the asm by default (mostly
> because the asm has had some issues with integration, whether
> that's a 'the asm doesn't compile under X, Y, or Z conditions' or
> 'the asm crashes if you look at it funny').  But since I'm not
> typically on a computer that can take advantage of the asm
> that's there, I've never really checked whether enabling it
> makes that much of difference in speed for the wrappers.
> 

> The wrappers also don't support the 10-bit variants of Ut Video's
> 4:2:2 codec, but when I last checked, the native one didn't either.

where can i find a sample utvideo file with 422 10b ?


[...]
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Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Freedom in capitalist society always remains about the same as it was in
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