Matthew Griffin c0d29a957c Multi channel support for Opus ...

Implemented CookSurround function for AudioFormatOpus, refactoring as much common code from the standard Cook into re-usable functions.
Changed OpusAudioInfo class to use a multistream decoder for all sounds, as 1 and 2 channel sounds can still be decoded by it. Just had to create an array of mappings that would take the internal Opus format and give back PCM data in the order that Unreal expects.
Also made the OpusDecoderWrapper a true wrapper so that you don't have to use any opus functions outside of it and it will not function if WITH_OPUS is not defined.
Added a virtual function to the CompressedAudioInfo interface, to check whether its uncompressed data will be in the Vorbis format. This is to make sure that code currently just checking whether there is a DecompressionState can now be sure that the Vorbis format is being used before routing sound to different speakers.
Made sure that you can't cause any problems by adding or removing a SoundWave from the Audio Streaming Manager more than once. Also rearranged where sounds are added to the manager so that it is only done in one place and it's safe when changing quality triggers recompression/splitting.
Added a global multidimensional array to store all the Vorbis channel orderings as they needed to be used in multiple places.
Added Logging and Memory tracking for the streaming process.

[CL 2217839 by Matthew Griffin in Main branch]

2014-07-15 06:09:13 -04:00

..

Private

Multi channel support for Opus

2014-07-15 06:09:13 -04:00

AudioFormatOpus.Build.cs

[Github] PR 242 (safe changes).

2014-07-08 00:06:17 -04:00