rkmpp. Rockchip VPU. How to configure hardware acceleration?

[vukitoso]

Hi.

Radxa Rock 3a (RK3568).

I build FFMPEG with RKMPP support according to the instructions https://github.com/nyanmisaka/ffMpeg-rockchip/wiki/compilation.
I tested FFMPEG on H264 Decode + Encode. Everything works successfully.

The audit team looks like this:
ffmpeg -hwaccel rkmpp -hwaccel_output_format drm_prime -afbc rga -i h264_1080p_30fps_1.mp4 -c:v h264_rkmpp -c:a copy output.h264_1080p_30fps_1.mp4

Moreover, it is important not only to indicate only the h264_rkmpp codec, but also "-hwaccel rkmpp -hwaccel_output_format drm_prime -afbc rga". The test of two commands shows this.

ffmpeg -hwaccel rkmpp -i h264_1080p_30fps_1.mp4 -c:v h264_rkmpp -c:a copy output.h264_1080p_30fps_1.mp4 CPU governor settings: performance
speed=1.59x
cpu=11-13%
real 0m50,478s
user 0m11,311s
sys 0m11,394s

ffmpeg -hwaccel rkmpp -hwaccel_output_format drm_prime -afbc rga -i h264_1080p_30fps_1.mp4 -c:v h264_rkmpp -c:a copy output.h264_1080p_30fps_1.mp4
CPU governor settings: performance
speed=2.38x
cpu=4-7%
real 0m33,651s
user 0m3,311s
sys 0m2,894s

My available codecs for RKMPP:

# ffmpeg -decoders | grep rkmpp
ffmpeg version 0983084 Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 12 (Debian 12.2.0-14+deb12u1)
  configuration: --prefix=/usr --enable-gpl --enable-version3 --enable-libdrm --enable-rkmpp --enable-rkrga
  libavutil      58. 29.100 / 58. 29.100
  libavcodec     60. 31.102 / 60. 31.102
  libavformat    60. 16.100 / 60. 16.100
  libavdevice    60.  3.100 / 60.  3.100
  libavfilter     9. 12.100 /  9. 12.100
  libswscale      7.  5.100 /  7.  5.100
  libswresample   4. 12.100 /  4. 12.100
  libpostproc    57.  3.100 / 57.  3.100
 V..... av1_rkmpp            Rockchip MPP (Media Process Platform) AV1 decoder (codec av1)
 V..... h263_rkmpp           Rockchip MPP (Media Process Platform) H263 decoder (codec h263)
 V..... h264_rkmpp           Rockchip MPP (Media Process Platform) H264 decoder (codec h264)
 V..... hevc_rkmpp           Rockchip MPP (Media Process Platform) HEVC decoder (codec hevc)
 V..... mjpeg_rkmpp          Rockchip MPP (Media Process Platform) MJPEG decoder (codec mjpeg)
 V..... mpeg1_rkmpp          Rockchip MPP (Media Process Platform) MPEG1VIDEO decoder (codec mpeg1video)
 V..... mpeg2_rkmpp          Rockchip MPP (Media Process Platform) MPEG2VIDEO decoder (codec mpeg2video)
 V..... mpeg4_rkmpp          Rockchip MPP (Media Process Platform) MPEG4 decoder (codec mpeg4)
 V..... vp8_rkmpp            Rockchip MPP (Media Process Platform) VP8 decoder (codec vp8)
 V..... vp9_rkmpp            Rockchip MPP (Media Process Platform) VP9 decoder (codec vp9)

# ffmpeg -encoders | grep rkmpp
ffmpeg version 0983084 Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 12 (Debian 12.2.0-14+deb12u1)
  configuration: --prefix=/usr --enable-gpl --enable-version3 --enable-libdrm --enable-rkmpp --enable-rkrga
  libavutil      58. 29.100 / 58. 29.100
  libavcodec     60. 31.102 / 60. 31.102
  libavformat    60. 16.100 / 60. 16.100
  libavdevice    60.  3.100 / 60.  3.100
  libavfilter     9. 12.100 /  9. 12.100
  libswscale      7.  5.100 /  7.  5.100
  libswresample   4. 12.100 /  4. 12.100
  libpostproc    57.  3.100 / 57.  3.100
 V..... h264_rkmpp           Rockchip MPP (Media Process Platform) H264 encoder (codec h264)
 V..... hevc_rkmpp           Rockchip MPP (Media Process Platform) HEVC encoder (codec hevc)
 V..... mjpeg_rkmpp          Rockchip MPP (Media Process Platform) MJPEG encoder (codec mjpeg)

It turns out that I need to specify 3 parameters for FFMPEG for correct hardware acceleration somewhere:
ffmpeg -hwaccel rkmpp -hwaccel_output_format drm_prime -afbc rga

The question arose: how to correctly configure Motion to apply the Rockchip Rkmpp hardware acceleration?