The command use a little gpu resource which show in my last picture as following:
ffmpeg -hwaccel_device 1 -hwaccel cuvid -y -i a.mkv -b:v 768k -r 25 -acodec libfdk_acc -ac 2 -b:a 96k -ar 44100 -vf ‘format=nv12,scale=854:480:force_original_aspect_ratio=decrease,pad=w=854:h=480’ -c:v h264_nvenc -gpu 1 b.mp4 Thanks a lot for your reply. > 在 2018年12月26日，01:21，unicor <[email protected]> 写道： > > > The command is: > ffmpeg -hwaccel_device 1 -hwaccel cuvid -c:v h264_cuvid -y -i a.mkv -b:v 768k > -r 25 -acodec libfdk_acc -ac 2 -b:a 96k -ar 44100 -vf > ‘scale_npp=854:480,hwdownload,format=nv12’ -c:v h264_nvenc b.mp4 > > The error is: > Bit depth 10 is not supported. > The video probe information: > bits_per_raw_sample=10 > >> 在 2018年12月26日，00:36，Carl Zwanzig <[email protected]> 写道： >> >> Hello, >> >>> On 12/25/2018 8:09 AM, dd wrote: >>> We replace cpu with gpu to ffmpeg recently, met a performance problem. >>> As the following problem Code: >>> ffmpeg -hwaccel_device 2 -hwaccel cuvid -i a.mp4 -vf >>> “scale=1080:720,overlay=()” -gpu 2 -c:v h264_nvenc out.mp4 >>> it use much more cpu resource, but a little gpu, it is not we want. see the >>> attachment picture. >> >> You need to make sure you're using a current, or at least recent, version of >> ffmpeg and also to post the entire command output from the command you use. >> >> Later, >> >> z! >> _______________________________________________ >> ffmpeg-user mailing list >> [email protected] >> http://ffmpeg.org/mailman/listinfo/ffmpeg-user >> >> To unsubscribe, visit link above, or email >> [email protected] with subject "unsubscribe". > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
