Support bit-perfect PCM playback.
This is part of USB audio improvement. Bit-perfect PCM playback
indicates that the PCM data will be sent as is down to the audio HAL.
When the track is bit-perfect, there will not be volume control
applied in the audio mixer. Only effects without processing or hw
accelerated effects will be allowed to attach to bit-perfect tracks.
Bug: 239435816
Test: manually
Test: atest audiopolicy_tests
Change-Id: I0bad4d7d78d4eaf741754d01bc5422ba15374782
diff --git a/services/audiopolicy/AudioPolicyInterface.h b/services/audiopolicy/AudioPolicyInterface.h
index 9c4ab80..a5fa78b 100644
--- a/services/audiopolicy/AudioPolicyInterface.h
+++ b/services/audiopolicy/AudioPolicyInterface.h
@@ -144,7 +144,8 @@
audio_port_handle_t *portId,
std::vector<audio_io_handle_t> *secondaryOutputs,
output_type_t *outputType,
- bool *isSpatialized) = 0;
+ bool *isSpatialized,
+ bool *isBitPerfect) = 0;
// indicates to the audio policy manager that the output starts being used by corresponding
// stream.
virtual status_t startOutput(audio_port_handle_t portId) = 0;