[x264-devel] x264 encoding corruption bug w/ AltiVec enabled

[Luca Barbato]

On 30/01/2019 12:10, Timothy Pearson wrote:
> When attempting to use the latest libx264 with the latest ffmpeg sources
> on Talos II (ppc64le), a color / blocking artifact is introduced in the
> source video.  These artifacts disappear entirely when libx264 is
> rebuilt with asm support (AltiVec) disabled, but the machine is then no
> longer able to maintain 60fps framerate on the sample live stream.

Please test with the x264 cli and, if possible, provide me the sample 
triggering it.

All the altivec code is tested on checkasm so sounds quite strange there 
is a problem there.

lu