Hello, Sorry to my mistake for your reply ^^;
'device' option for hwupload_cuda is working well. *1. Device option is 0 for hwupload_cuda* > ffmpeg -y -i ./input.mp4 -filter_complex "[0:v]hwupload_cuda=device=0,scale_npp=w=960:h=540[map0]" -map "[map0]" -c:v h264_nvenc -c:a copy ./output.mp4 +-----------------------------------------------------------------------------+ | Processes: GPU Memory | | GPU PID Type Process name Usage | |=============================================================================| | 0 101825 C ffmpeg 147MiB | +-----------------------------------------------------------------------------+ *2. Device option is 1 for hwupload_cuda* > ffmpeg -y -i ./input.mp4 -filter_complex "[0:v]hwupload_cuda=device=1,scale_npp=w=960:h=540[map0]" -map "[map0]" -c:v h264_nvenc -c:a copy ./output.mp4 +-----------------------------------------------------------------------------+ | Processes: GPU Memory | | GPU PID Type Process name Usage | |=============================================================================| | 1 102185 C ffmpeg 147MiB | +-----------------------------------------------------------------------------+ Thanks you for your detailed explanation. Could I ask one things about "-hwaccel cuvid" option for related above commands? 2017-11-06 1:41 GMT+09:00 James Girotti <james.giro...@gmail.com>: > I wonder if Gpu devices can not be selected if hwupload_cuda filter is > present. > > > > > I think it's uploading to GPU 0 by default. There is an option 'device' > for > > hwupload_cuda. Could you try specifying the device for hwupload_cuda? > > > Could you try the 'device' option for hwupload_cuda? > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".