> -----Original Message----- > From: ffmpeg-devel <ffmpeg-devel-boun...@ffmpeg.org> On Behalf Of > Haihao Xiang > Sent: Wednesday, September 2, 2020 6:01 AM > To: ffmpeg-devel@ffmpeg.org > Cc: Haihao Xiang <haihao.xi...@intel.com> > Subject: [FFmpeg-devel] [PATCH] ffmpeg_qsv: use -hwaccel_device to > specify a device for VAAPI backend > > According to the FFmpeg documentation, -hwaccel_device can be used to > select a device for hardware acceleration > > Example: > ffmpeg -hwaccel qsv -hwaccel_device /dev/dri/renderD129 -c:v h264_qsv \ -i > in.h264 -c:v hevc_qsv out.h265
No. The docs say about hwaccel_device It can either refer to an existing device created with -init_hw_device by name, => /dev/dri/renderD129 is not an existing device name or it can create a new device as if ‘-init_hw_device’ type:hwaccel_device were called immediately before. => /dev/dri/renderD129 is not a valid string for init_hw_device Hence, the patch doesn't make sense. 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".
