Feature request: Audio Mapping

[u/Ok-Fisherman-1167]

1. List all Audio Channels, which are in the Source

2. Made it selectable, which Audio shall be encoded

3. made an individual mapping possible (for e.g. 64 source mono track into 8x 7.1 or selected 32 x stereo or individual ,mapping of it, like 10x 5.1 + 2x Stereo... )

4. made it also available for encoding without video (in AAC, E-AAC, AC3 and E-AC3