ffmpeg | branch: master | Mark Thompson <s...@jkqxz.net> | Sun Nov 26 15:35:27 2017 +0000| [37c57df18e7c46436fa791abf40f4c3031ab56f4] | committer: Mark Thompson
doc/ffmpeg: Document opencl for -init_hw_device > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=37c57df18e7c46436fa791abf40f4c3031ab56f4 --- doc/ffmpeg.texi | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi index d767e48c44..ba1e62f06f 100644 --- a/doc/ffmpeg.texi +++ b/doc/ffmpeg.texi @@ -757,6 +757,43 @@ If not specified, @samp{auto_any} is used. platform-appropriate subdevice (@samp{dxva2} or @samp{vaapi}) and then deriving a QSV device from that.) +@item opencl +@var{device} selects the platform and device as @emph{platform_index.device_index}. + +The set of devices can also be filtered using the key-value pairs to find only +devices matching particular platform or device strings. + +The strings usable as filters are: +@table @option +@item platform_profile +@item platform_version +@item platform_name +@item platform_vendor +@item platform_extensions +@item device_name +@item device_vendor +@item driver_version +@item device_version +@item device_profile +@item device_extensions +@item device_type +@end table + +The indices and filters must together uniquely select a device. + +Examples: +@table @emph +@item -init_hw_device opencl:0.1 +Choose the second device on the first platform. + +@item -init_hw_device opencl:,device_name=Foo9000 +Choose the device with a name containing the string @emph{Foo9000}. + +@item -init_hw_device opencl:1,device_type=gpu,device_extensions=cl_khr_fp16 +Choose the GPU device on the second platform supporting the @emph{cl_khr_fp16} +extension. +@end table + @end table @item -init_hw_device @var{type}[=@var{name}]@@@var{source} _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
