tree 40bdfcf0363cb67299df6da3712b5aa9c492a665
parent 13c0c1fab3f40f4aecaefac9f7664f71cf887d55
author Eric Laurent <elaurent@google.com> 1542313471 -0800
committer Gerrit - the friendly Code Review server <code-review@localhost> 1560187336 -0700

audio HAL: support multiple active input streams

Implement support for more than one active input streams.
New implementation is limited to one active stream per capture use
case as there is one PCM ALSA device per front end and use case.
Note that the number of active sound trigger sessions is limited by the
soundtrigger implementation, not the number of PCM ALSA devices.
We do not enforce a max number of open streams per use case as this is
done by the audio_polcy_configuration file.

Bug: 111438757
Test: manual audio smoke tests for capture.
Change-Id: I1a372bca154d1ee034526f2b6b3ddeeae93a71f2
(cherry picked from commit d1b7a9b6b516e3313d65560a4b8004cfa3ae9a19)
Signed-off-by: Aniket Kumar Lata <alata@codeaurora.org>