> -----Original Message----- > From: ffmpeg-devel <ffmpeg-devel-boun...@ffmpeg.org> On Behalf Of > Soft Works > Sent: Thursday, February 25, 2021 8:50 PM > To: FFmpeg development discussions and patches <ffmpeg- > de...@ffmpeg.org> > Cc: Artem Galin <artem.ga...@intel.com> > Subject: Re: [FFmpeg-devel] [PATCH v7 3/8] libavutil/hwcontext_qsv: > enabling d3d11va usage by default, add usage child_device_type argument > > > > > -----Original Message----- > > From: ffmpeg-devel <ffmpeg-devel-boun...@ffmpeg.org> On Behalf Of > > Artem Galin > > Sent: Tuesday, November 3, 2020 7:46 PM > > To: ffmpeg-devel@ffmpeg.org > > Cc: Artem Galin <artem.ga...@intel.com> > > Subject: [FFmpeg-devel] [PATCH v7 3/8] libavutil/hwcontext_qsv: > > enabling d3d11va usage by default, add usage child_device_type > > argument > > > > Makes selection of d3d11va device type by default and over DirectX 9, > > which might break users with older drivers/systems. > > DCH driver with Gen6th support should be still fine. > > > > Decode, encode, transcode have been validated. > > > > child_device_type option is responsible for d3d11va/dxva2 device > > selection > > > > Usage examples: > > > > DirectX 11 > > -init_hw_device qsv:hw,child_device_type=d3d11va > > > > DirectX 9 is still supported but requires explicit selection > > -init_hw_device > > qsv:hw,child_device_type=dxva2 > > > > Hi Artem, > > Could you please show a complete command line, demonstrating how to use > a D3D9/DXVA2 hardware context with your patch? > > Something like qsv decoder, scale_qsv and qsv encoder... > > Thanks, > Softworkz
Hello Artem, I don't know whether you read my message above, but in case you did, I suppose that you have realized that this would be no longer possible with your patch. The QSV decoders do not allow setting a hardware device, and that means that the command snippet in your commit message (-init_hw_device qsv:hw,child_device_type=dxva2) doesn't affect decoders, but only filters and encoders at best. That's why I had that global parameter (qsv_use_dx11) in my original patch (that follows the existing implementation of the qsc_device parameter, which is global as well). As long as the patch breaks usage of D3D9 (for QSV decoding), I don't think it will ever get merged. (not insisting to change the default to DX11 might help as well) Kind regards, Softworkz _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
