Allwinner H618 Hardware-Accelerated Video Decoding & Encoding

DK1991 · January 19

Hello dear comminuty,

I have spent the last few days trying to get Hardware-Accelerated Video Decoding Encoding to work on the H618.

I have tried everything but it does not work.

ffmpeg -input_format mjpeg -video_size 1920x1080 -i /dev/video1 -c:v cedrus264 -f rtsp rtsp://localhost:$RTSP_PORT/$MTX_PATH

my goal is to output a rtsp stream from a camera.

But I get this ERROR:

[cedrus264 @ 0xaaaae53e5170] VE Open error.

Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

sudo ffmpeg -f v4l2 -video_size 1280x720 -i /dev/video1 -c:v cedrus264 -pix_fmt nv12 test1.mp4

ffmpeg version git-2021-10-01-afd516b Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 12 (Debian 12.2.0-14)
  configuration: --prefix=/usr --enable-nonfree --enable-gpl --enable-version3 --enable-vdpau --enable-libx264 --enable-libmp3lame --enable-libpulse --enable-libv4l2
  libavutil      57.  7.100 / 57.  7.100
  libavcodec     59.  9.101 / 59.  9.101
  libavformat    59.  5.100 / 59.  5.100
  libavdevice    59.  0.101 / 59.  0.101
  libavfilter     8. 10.100 /  8. 10.100
  libswscale      6.  1.100 /  6.  1.100
  libswresample   4.  0.100 /  4.  0.100
  libpostproc    56.  0.100 / 56.  0.100
Input #0, video4linux2,v4l2, from '/dev/video1':
  Duration: N/A, start: 2315.045127, bitrate: 147456 kb/s
  Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 1280x720, 147456 kb/s, 10 fps, 10 tbr, 1000k tbn
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (cedrus264))
Press [q] to stop, [?] for help
[cedrus264 @ 0xaaaae53e5170] VE Open error.
Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
Conversion failed!

It was a hard way for me to get compile FFmpeg with Cedrus

I have to say that I am new to Linux. Therefore I hope that someone can give me a detailed instruction on how to finally get it running.

lsmod | grep cedrus
sunxi_cedrus           45056  0
videobuf2_dma_contig    24576  1 sunxi_cedrus
v4l2_mem2mem           36864  1 sunxi_cedrus
videobuf2_v4l2         24576  3 sunxi_cedrus,uvcvideo,v4l2_mem2mem
videobuf2_common       49152  7 sunxi_cedrus,videobuf2_vmalloc,videobuf2_dma_contig,videobuf2_v4l2,uvcvideo,v4l2_mem2mem,videobuf2_memops
videodev              204800  5 sunxi_cedrus,videobuf2_v4l2,uvcvideo,videobuf2_common,v4l2_mem2mem
mc                     53248  6 sunxi_cedrus,videodev,videobuf2_v4l2,uvcvideo,videobuf2_common,v4l2_mem2mem

otherwise I despair of this project