[FFmpeg-devel] [PATCH 2/3] Do loop filter per-row rather than per-frame

Måns Rullgård mans
Wed Feb 10 04:31:42 CET 2010

Jason Garrett-Glaser <darkshikari at gmail.com> writes:

> On Tue, Feb 9, 2010 at 6:33 PM, Michael Niedermayer <michaelni at gmx.at> wrote:
>> On Tue, Feb 09, 2010 at 08:54:03PM -0500, David Conrad wrote:
>>> 3% faster on Elephants_Dream_HD-q7-aq7.ogg on my penryn
>> great
>> next would be supprting doing it in a seperae thread (optionally
>> as not everyone has the hardware)
>> and after that you can do the same for h264
>> and then profit&fame ;)
>> hey h264 should be ~30% faster if the loop filter where on a thread of
>> its own ...
> Frame-based multithreading is more important.  Zero-latency decoding
> is a niche use-case.

This type of parallelising is necessary on hardware with specialised
units for e.g. deblocking.

M?ns Rullg?rd
mans at mansr.com

More information about the ffmpeg-devel mailing list