I have been trying to get my New Rock Pi working with ffmpeg now for a week without success. I first tried Armbian. After compiling ffmpeg and running it, ffmpeg didn’t find the Alsa library and with libpulse installed and enabled, It didn’t find the Rock’s hardware, CARD=rockchipes8316c or CARD=0,DEV=0. In further checking, I find that audio is not working at all, HDMI or on the audio jack, in or out of Armbian. I finally got tired messing with Armbian deficiencies and installed Ubuntu Server on a new microSD card.
I booted the Rock Pi4 with Ubuntu Server and found the same problem, No audio on any input or output devices. I started searching through Ubuntu’s configuration and found almost no setup or configuration files for the audio system. The few I did find were empty files.
Right now, I am beginning to think that the audio chip inside my Rock Pi4 is bad and therefor the OS nstall cicn’t install the necessary audio driver but that cannot be because aplay -L does find the device listed and I don’t think that a defective rock audio chip would keep the HDMI driver from working.
Could I just have a bad Rock Pi4b board or Is it because there is no driver available for this Rock chip?
Right now, I am loading in the gnu desktop to try to get audio working with the graphic config tools. It is of little use to Google for answers for command line solutions since most all posted solutions start with clicking on the desktop.
Any pointing in the right direction would be very helpful.