Questions:
- Does anyone use the Radeon GPU for FFMPEG rendering?
- Is there a way to tell how loaded the GPU(s) are?
- Is anyone getting better than 1.9x performance?
- Is anyone able to get more than one stream working at a time?
- Has anyone solved the AMDGPU context error issue?
My System:
Ubuntu 18.04 LTS
Radeon Pro Drivers
FFMPEG (latest) compiled: ffmpeg version N-96728-ge007059
Hardware acceleration methods:
vdpau
vaapi
Encoders:
V..... libx264 libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (codec h264)
V..... libx264rgb libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 RGB (codec h264)
V..... h264_v4l2m2m V4L2 mem2mem H.264 encoder wrapper (codec h264)
V..... h264_vaapi H.264/AVC (VAAPI) (codec h264)
Decoders:
VFS..D h264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
V..... h264_v4l2m2m V4L2 mem2mem H.264 decoder wrapper (codec h264)
Random Failures with this error:
amdgpu: The CS has been cancelled because the context is lost.
Example FFMPEG Command:
~/bin/ffmpeg -hwaccel vaapi -threads 16 -vcodec h264_v4l2m2m -i input.mp4 -vaapi_device /dev/dri/renderD128 -vcodec h264_vaapi -vf format='nv12|vaapi,hwupload','deinterlace_vaapi=rate=field:auto=1,scale_vaapi=w=-1:h=480,hwupload' -b:v 2M output.mp4 -y
Performance is pretty bad: Ont 1.9 to 2.2x and you can only run one stream at a time.
There is no way to find out how utilized the GPU is.
Performance Results with "Time"
frame=100852 fps=122 q=-0.0 Lsize= 438812kB time=00:28:02.63 bitrate=2136.4kbits/s dup=4 drop=0 speed=2.03x
video:410551kB audio:26348kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.437883%
[aac @ 0x56160c682a40] Qavg: 333.827
real 13m50.061s
user 2m25.641s
sys 1m20.288s
On an NVIDIA 1060 this takes about 3 minutes.
