Implemented mono->stereo, stereo->mono channel conversion in submix HAL.
The AudioFlinger service currently will only open stereo streams from
mono AudioTracks since all mixing is performed in stereo and then sent
to the HAL stream. In order to allow a process to record a mono stream
from the submix HAL, this change implements channel conversion in
the submix HAL so that it's possible to open the output stream in stereo
and the input stream in mono.
Bug: 11273000
Change-Id: I840ce0be3cf7e5bc8a4c6de63a70d5408d60b716
1 file changed