This change ensures that the test uses `assumeTrue` to avoid failures when the `libiamf` library is not pre-built.
#cherrypick
PiperOrigin-RevId: 691333564
Check if the output device supports spatialization for the requested output format. If so, return a stream decoded for 6 channels in a 5.1 layout. Otherwise, return a stream decoded for 2 channels in a binaural layout.
PiperOrigin-RevId: 662546818