There is no unique nor "official" software path to have hardware acceleration on linux.
Every chip makers have designed their own framework to do so; none of them compatible with one another.
The only GStreamer plugin allowing hardware acceleration decoding was a VAAPI plugin: it was buggy and extremely unstable nor did it provide any significant speed improvement.
There is no unique nor "official" software path to have hardware acceleration on linux.
Every chip makers have designed their own framework to do so; none of them compatible with one another.
You may want to track bug 1210729 or bug 1210727.
The only GStreamer plugin allowing hardware acceleration decoding was a VAAPI plugin: it was buggy and extremely unstable nor did it provide any significant speed improvement.
You're much better off using ffmpeg