[FFmpeg-devel] [PATCH]Allow native jpeg 2000 encoding yuv42x and yuv41x

[Michael Niedermayer]

On Fri, Jul 03, 2015 at 05:18:03PM +0000, Paul B Mahol wrote:
> On 7/3/15, Michael Niedermayer <michaelni at gmx.at> wrote:
> > On Fri, Jul 03, 2015 at 12:34:21PM +0200, Carl Eugen Hoyos wrote:
> >> Hi!
> >>
> >> Attached patch allows lossless encoding of lena.pnm
> >> in yuv420p, yuv422p, yuv410p and yuv411p with the
> >> native jpeg 2000 encoder, fixes tickets #535 and
> >> #4524.
> >> Tested only with FFmpeg, all other decoders also
> >> fail for file3.jp2, the relevant sample from the
> >> reference file suite.
> >>
> >> Please comment, Carl Eugen
> >
> > if it works now after the decder fix the this should be ok
> 
> It kinda works, decoder dumps bunch of yellow warnings but final
> output looks ok.

> Encoder on other hand for yuv420p use bunch of memory ~330MB.

is it worse than with other parameters ?
jpeg2000 is a rather overcomplicated format


> 
> ImageMagick does not like ffmpeg output.

does ImageMagick support this type of jpeg2000 ?

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

I have often repented speaking, but never of holding my tongue.
-- Xenocrates
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