The standard gstreamer plugins (base, good, bad, ugly) should support this. I don't know why none of them work in impish for H264 + AAC. Although this plugins package does work:
sudo apt install gstreamer1.0-libav
The standard gstreamer plugins (base, good, bad, ugly) should support this. I don't know why none of them work in impish for H264 + AAC. Although this plugins package does work:
sudo apt install gstreamer1.0-libav