On 3/26/16, Martin Vignali <martin.vign...@gmail.com> wrote: > 2016-03-26 21:24 GMT+01:00 Paul B Mahol <one...@gmail.com>: > >> On 3/26/16, Martin Vignali <martin.vign...@gmail.com> wrote: >> > Hello, >> > >> > In attach a patch for fate test of B44/B44A compression inside openexr >> > file. >> > samples can be download here : http://we.tl/QwJcxVn9CV >> > need to be put inside : ./fate-suite/exr/ >> > >> > Detail of tests : >> > >> > rgba_scanline_float_b44.exr : test scanline B44 float file >> > (uncompress data) >> > >> > rgba_multiscanline_half_b44.exr : b44 file with alpha. have multiple >> > scanlines >> > >> > rgba_scanline_half_b44_12x8.exr : have b44 and b44A block, all pixels >> > inside b44 block are used in the final picture >> > >> > rgba_scanline_half_b44_13x9.exr : have b44 and b44A block, some pixels >> > in >> > B44 block are not used in the final picture >> >> Do you have by any chance INT32 format exr files? >> > > In attach a sample (it's a 4 point gradient), but most software display it > in white (for thoses who interpret it in float, you need to reduce a lot > the exposure (-30. in after effects), to have something close to the > original render.) > > Like UINT32 of exr is mostly for 3D data pass (like object id), i don't > know how to interpret it (in a general way) as rgba image. > > > >> Do you gonna add other missing features, mostly tile and subsampling >> support? >> >> Yes (both are in progress) > - tile support (because it's the default render mode of several 3D > software). > - subsampling (mostly for YCbCr 420 mode , because it's the "more common" > mode with subsampling (can be output by RgbaOutputFile class of the > official library (like in Adobe After Effects using Luma/Chroma mode). > > The French National Cinematography Center (http://www.cnc.fr/web/en) > support us (Jokyo Images) for this work, in order to have a better use of > ffmpeg inside post-production companies (who use openexr), avoiding lot of > intermediate conversion (like what is suggest in ffmpeg wiki)
Awesome! looking for patches. > > > Best Regards > > Martin > Jokyo Images > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
