[FFmpeg-devel] [PATCH] lavfi/scale: add scale opencl filter

Michael Niedermayer michaelni at gmx.at
Sat Jun 8 03:12:35 CEST 2013


On Wed, May 29, 2013 at 04:55:47PM +0800, Wei Gao wrote:
> 

>  libavfilter/opencl_allkernels.c  |    2 
>  libavfilter/vf_scale.c           |   30 +-
>  libswscale/Makefile              |    2 
>  libswscale/scale_opencl_kernel.h |  531 +++++++++++++++++++++++++++++++++++++++
>  libswscale/swscale_internal.h    |   32 ++
>  libswscale/swscale_opencl.c      |  328 ++++++++++++++++++++++++
>  libswscale/swscale_opencl.h      |   43 +++
>  7 files changed, 964 insertions(+), 4 deletions(-)
> bf60e224a4cfa8167ce952f940670013c025d4ee  0001-lavfi-scale-add-scale-opencl-filter.patch
> From cbe06e650a42b3e4bf9abe2226b9c61602d12617 Mon Sep 17 00:00:00 2001
> From: highgod0401 <highgod0401 at gmail.com>
> Date: Wed, 29 May 2013 16:53:32 +0800
> Subject: [PATCH] lavfi/scale: add scale opencl filter

why does adding opencl support to swscale need changes to
libavfilter ?

Also can you post benchmark results?
how much speed is gained by this and is there a quality difference
to the software based swscale

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Avoid a single point of failure, be that a person or equipment.
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