I tried VAAPI with a RADEON 580 on Linux. It was intermittent at best. I wound up using Vulkan with success.
This is the hwaccel command I was using for transcoding. time ffmpeg -hide_banner -stats -hwaccel vulkan -init_hw_device vulkan:0 -threads 16 -i input.mp4 -vf scale=854:480 -c:v libopenh264 -c:a copy -quality quality -b:v 2M -crf 23 -maxrate 2M -bufsize 6M -slice_mode dyn -max_nal_size 65535 -allow_skip_frames 1 output_gpu_3.mp4 -y I started writing an article on RADEON based transcoding: Here is a draft link. It is far from done. But I will finishing it this week https://medium.com/@cbitterfield/radeon-gpu-transcoding-with-ubuntu-18-04-lts-2e5143d0d1cd On Apr 8, 2020, 12:39 PM -0700, Tobias Kilb <tobiask...@gmail.com>, wrote: > Uh, indeed. Good to know. I thought the development is going towards vaapi > from amd/intel. > > Regards > Tobias > > Ostap Batug <ostik0bl...@gmail.com> schrieb am Mi., 8. Apr. 2020, 21:25: > > > https://wiki.archlinux.org/index.php/Hardware_video_acceleration#ATI/AMD > > > > On Wed, 8 Apr 2020 at 22:17, Tobias Kilb <tobiask...@gmail.com> wrote: > > > > > Hi, > > > > > > AI am wondering why it shows vdpau because you have an amd graphics > > > adapter. > > > > > > Regards > > > Tobias > > > > > > Ostap Batug <ostik0bl...@gmail.com> schrieb am Mi., 8. Apr. 2020, 21:08: > > > > > > > Hello, > > > > Yes this is the same machine > > > > i havent figured out a command to run with -init_hw_device , but > > > -hwaccels > > > > reports: > > > > Hardware acceleration methods: > > > > vdpau > > > > so seems that i don't have vaapi? although i am not certain, yes my gpu > > > is > > > > primarily supporting vdpau, but i have a sort of vaapi emulation with > > > > vdpau, or something? > > > > Regards, > > > > Repu > > > > > > > > On Wed, 8 Apr 2020 at 21:03, Ted Park <kumowoon1...@gmail.com> wrote: > > > > > > > > > Hello, > > > > > > > > > > > Okay, i've used latest static build from git of amd64 arch, it > > can't > > > > find > > > > > > option -vaapi_device, > > > > > > and this is the output (ran from the extracted archive path): > > > > > > $ ./ffmpeg -vaapi_device /dev/dri/renderD128 -f x11grab -video_size > > > > > > 1920x1080 -i :0 -vf 'format=nv12,hwupload' -c:v h264_vaapi -b:v 7M > > > > > > -profile:v main -bf 0 output.mp4 > > > > > > ffmpeg version N-52056-ge5d25d1147-static > > > > > https://johnvansickle.com/ffmpeg/ > > > > > > Copyright (c) 2000-2020 the FFmpeg developers > > > > > > built with gcc 8 (Debian 8.3.0-6) > > > > > > configuration: --enable-gpl --enable-version3 --enable-static > > > > > > --disable-debug --disable-ffplay --disable-indev=sndio > > > > > > --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r > > > > > > --enable-gnutls --enable-gmp --enable-libgme --enable-gray > > > > > --enable-libaom > > > > > > --enable-libfribidi --enable-libass --enable-libvmaf > > > > --enable-libfreetype > > > > > > --enable-libmp3lame --enable-libopencore-amrnb > > > > --enable-libopencore-amrwb > > > > > > --enable-libopenjpeg --enable-librubberband --enable-libsoxr > > > > > > --enable-libspeex --enable-libsrt --enable-libvorbis > > --enable-libopus > > > > > > --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc > > > > > > --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 > > > > > > --enable-libxml2 --enable-libdav1d --enable-libxvid > > --enable-libzvbi > > > > > > --enable-libzimg > > > > > > libavutil 56. 42.101 / 56. 42.101 > > > > > > libavcodec 58. 76.100 / 58. 76.100 > > > > > > libavformat 58. 42.100 / 58. 42.100 > > > > > > libavdevice 58. 9.103 / 58. 9.103 > > > > > > libavfilter 7. 77.100 / 7. 77.100 > > > > > > libswscale 5. 6.101 / 5. 6.101 > > > > > > libswresample 3. 6.100 / 3. 6.100 > > > > > > libpostproc 55. 6.100 / 55. 6.100 > > > > > > Unrecognized option 'vaapi_device'. > > > > > > Error splitting the argument list: Option not found > > > > > > > > > > > > > > > The option might not be there any more, try using -init_hw_device > > > > instead, > > > > > and use -hwaccels to list additional hardware support? > > > > > Also confirm this is the same machine (or at least with similar > > > hardware) > > > > > that ran the earlier command? > > > > > > > > > > Regards, > > > > > Ted Park > > > > > > > > > > _______________________________________________ > > > > > ffmpeg-user mailing list > > > > > ffmpeg-user@ffmpeg.org > > > > > https://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 > > > > https://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 > > > https://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 > > https://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 > https://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 https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".