decoder error

[ywangwxd]

I followed the instructions,
1, compiled and installed mpp from git
2, compiled and installed libyuv from git
3, compiled and installed ffmpeg
but when I try to transcode a video, it showed error message :

[h264_rkmpp_decoder @ 0x55d029d760] Picture format is nv12. [h264_rkmpp_decoder @ 0x55d029d760] Failed to initialize MPP context (code = -1). [h264_rkmpp_decoder @ 0x55d029d760] Failed to initialize RKMPP Codec.

I tried mpp_info_test binary compiled from MPP source, it shows nothing. What is the problem?

[great9]

What kernel and linux distribution are you using?
uname -a

[ywangwxd]

5.10.110 #39 SMP Tue Nov 8 11:08:57 CST 2022 aarch64 GNU/Linux

I am using ubuntu, I did the compliation on the aarch64 system directly, not cross-compiling.

[hbiyik]

could ypu try decoding with sudo, if it works you need to enable access to mppservice, rga, heaps to the logged in user, you can check udev rules below.

https://github.com/7Ji-PKGBUILDs/mpp-git/blob/master/60-mpp.rules
https://github.com/7Ji-PKGBUILDs/mpp-git/blob/master/install

[ywangwxd]

Yes, it is working if I change the input to a rtsp stream or a h265 file, but not on a mp4 file.