[x264-devel] Bug (or bugs) in x264 rev 2334 OpenCL and one improvement proposal.

Jason Garrett-Glaser jason at x264.com
Wed Jun 12 00:20:59 CEST 2013


On Tue, Jun 11, 2013 at 10:46 AM, Nihil <nihil at nihil.nu> wrote:
>
> Well problem solved.
>
> It was about memory but not a thing either of us thought about.
>
> From some reason /3GB was removed from my Boot.ini so x264 did hit on 2GB
> barrier. Now I have added /3GB again to my Boot.ini and malloc doesn't fail
> anymore.
>
> Memory usage seen with ProcessHacker after re-adding /3GB.
>
> Peak Working Set 1,54GB
> Peak Virtual Size 2,14GB
> Peak Private Bytes 1,97GB
>
> Sorry about inconvenience.
>
> So which leaves adding OpenCL support on -p 2 and -p 3.

Multi-pass encoding performs the lookahead on the first pass; the
lookahead doesn't run on the second pass, so there would be nothing
for OpenCL to do.

Jason


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