tree 7fd0653aed530f8753b3a8fc382dc677331e972b
parent 7f5ca11ada11aa0eb3a0b8520724b003234896af
author Vignesh Venkatasubramanian <vigneshv@google.com> 1676677304 -0800
committer Vignesh Venkatasubramanian <vigneshvg@users.noreply.github.com> 1676680452 -0800

Add support for threaded YUV to RGB conversion

Add a new function avifImageYUVToRGBThreaded which takes a
maxThreads parameter and potentially uses up to that many threads
to parallelize the conversion.

If there are n jobs, each job works on a portion of the image in
parallel (each job will work on an image of size
width x (height / 4)).

Microbenchmarking shows that the function scales almost linearly
with the number of threads on larger images (2k or above). For
smaller images, performance is either neutral or slightly better.