[FFmpeg-devel] [PATCH] webp: fix transforms after a palette with pixel packing.

2021-08-30 Thread Maryla
When a color indexing transform with 16 or fewer colors is used, WebP uses "pixel packing", i.e. storing several pixels in one byte, which virtually reduces the width of the image (see WebPContext's reduced_width field). This reduced_width should always be used when reading and applying subsequent

Re: [FFmpeg-devel] [PATCH] webp: fix transforms after a palette with pixel packing.

2021-08-26 Thread Maryla Ustarroz
d the file to fate, and then I can add a fate test to the patch? On Fri, Aug 20, 2021 at 7:07 PM James Zern wrote: > On Thu, Aug 19, 2021 at 12:56 AM Maryla > wrote: > > > > When a color indexing transform with 16 or fewer colors is used, > > WebP uses "pixel packin

[FFmpeg-devel] [PATCH] webp: fix transforms after a palette with pixel packing.

2021-08-19 Thread Maryla
When a color indexing transform with 16 or fewer colors is used, WebP uses "pixel packing", i.e. storing several pixels in one byte, which virtually reduces the width of the image (see WebPContext's reduced_width field). This reduced_width should always be used when reading and applying subsequent