[vlc-devel] [patch] sepia: fix missing Y adjustment for SSE2 PlanarI420

jnqnfe at gmail.com jnqnfe at gmail.com
Sun Mar 17 18:57:41 CET 2019

mistakes in the sepia SSE2 asm for PlanarI420 meant that it was not
actually accomplishing anything processing Y, which was thus just
passing through unchanged.

the flaws meant that the output had much higher contrast than the non-
SIMD accelerated version (if that's a correct way to describe it), and
with some videos you'd get a band down the right hand side with
different (correct) colouring from the non-SIMD accelerated portion of
each line.

this has been the case since introduction of SIMD acceleration in
972c39b6e89d51afb4da13e71933ee10ad04d529, and survived the changes of
-------------- next part --------------
A non-text attachment was scrubbed...
Name: sepia_y_adjust.patch
Type: text/x-patch
Size: 4877 bytes
Desc: not available
URL: <http://mailman.videolan.org/pipermail/vlc-devel/attachments/20190317/94153bfa/attachment.bin>

More information about the vlc-devel mailing list