[FFmpeg-devel] Libavcodec/exr : add support for tile

[Paul B Mahol]

On 4/3/16, Martin Vignali <martin.vignali at gmail.com> wrote:
> Hello,
>
> In attach a patch in order to add support for exr Tile (One Level)
>
> Some samples can be found here : https://we.tl/IC4XTrEJf4
> Theses samples can also be add to ./fate-suite/exr/
> (i will make a fate test soon).
>
> Details of the sample files :
> rgb_tile_half_raw_12x8.exr : uncompress half float file, in tile (only one
> tile in the file)
> rgb_tile_float_raw_12x8.exr : uncompress float file, in tile (only one tile
> in the file)
> rgb_tile_float_raw_150x130.exr : uncompress float file, in tile (multiple
> tile in the file)
>
> In this patch, compression in tile is not enabled. (i will make new patchs
> for that after making more tests)
>
> I tried to keep the most code common with the scanline mode (reason why,
> scanline code part have had some modifications).
> Tile data are reorganized, to be more like scanline uncompress data.
>
> Pass fate-exr tests.
>
> More information about tile in exr can be found here :
> http://www.openexr.com/TechnicalIntroduction.pdf
>
> Comments welcome.
>
> Martin
> Jokyo Images
>

Pushed. Note that tile with PIZ compression crashes.