Code changes for audio offload support

- Share existing offload output if compatible instead of
  creating a new one. Hardware has limited number of
  offload channels (possible only 1) so we must use as
  few as possible

- Changes to routing handling for offloaded outputs

Change-Id: I11111d8f504828595bd8dbf66444cbd1202e7192
Signed-off-by: Eric Laurent <elaurent@google.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/audio/AudioHardwareStub.cpp b/audio/AudioHardwareStub.cpp
index 70a8309..1083889 100644
--- a/audio/AudioHardwareStub.cpp
+++ b/audio/AudioHardwareStub.cpp
@@ -204,6 +204,10 @@ String8 AudioStreamInStub::getParameters(const String8& keys)
     return param.toString();
 }
 
+AudioHardwareInterface* createAudioHardware(void) {
+    return new AudioHardwareStub();
+}
+
 // ----------------------------------------------------------------------------
 
 }; // namespace android