To protect user's privacy if a UID is in an idle state we allow
recording but report silence (all zeros in the byte array) and once
the process goes in an active state we report the real mic data.
This avoids the race between the app being notified aboout its
lifecycle and the audio system being notified about the state
of a UID.
Test: Added - AudioRecordTest#testRecordNoDataForIdleUids
Passing - cts-tradefed run cts-dev -m CtsMediaTestCases
-t android.media.cts.AudioRecordTest
bug:63938985
Change-Id: I1442a9dda1553e9ea7a4a654c50555ac1ec06aa0
Refactor the mechanism used by audio record tracks to query and
attach to an input mixer/stream in audio flinger. This will:
- reduce the number of binder transactions needed to create a record track
- move sample rate, framecount and flags validations to audio server side
- move audio session allocation to audio server side
- prepare restriction of certain binder transactions to audioserver only
Also:
- renamed openRecord() to createRecord() for consistency with AudioTrack
- make AudioRecord mStatus update consistent when calling default
contructor + set() or constructor with arguments
- make AudioClient, CreateTrackXXX and CreateRecordXXX classes derive
from Parcelable
- restore audio session ID validity check in AudioFlinger::createTrack()
Test: CTS tests: AudioRecordTest, AudioRecordingConfigurationTest, AudioPreProcessingTest
Test: manual test for capture use cases: camcorder, OK Google, VoIP calls
Change-Id: I72edaa7ddef1da11c77df21e88378e3aa9012d58
Refactor the mechanism used by audio tracks to query and attach
to an output mixer/stream in audio flinger. This will:
- reduce the number of binder transactions needed to create a track
- move sample rate, framecount and flags validations to audio server
side
- move audio session allocation to audio server side
- prepare restriction of certain binder transactions to audioserver only
Test: CTS tests for AudioTrack
Change-Id: If4369aad6c080a56c0b42fbfcc97c8ade17a7439
Use AIDL to generate the IAudioRecord interface rather than using
a manually implemented interface.
Bug: 64223827
Test: Ran the AudioNativeTest and CtsMediaTestCases CTS tests.
Change-Id: Iade23c73253a97c358050bbd697ebe592b89a4c0
Make the binder opcode names match the method names
Test: builds OK, this does not change behavior
Change-Id: I7c56ddd1efabc81b5d0ab2d1979ba1001ec76994
This will allow to track activity at the track level instead of
at audio session level as only possible with current implementation.
AudioTracks and AudioRecords will receive a unique audio port ID the
first time they register to audio policy with
getOutputForAttr()/getInputForAttr() and keep this ID for their
lifetime.
This CL is the first partial change and just updates the
audio policy and audio flinger APIs used at track creation time.
Test: basic regression test of audio playback and capture use cases
Change-Id: I8d612e67738e120494f61e3f7c60bfd0b2c6a329
This makes it so audioserver doesn't need to link against the entire libmedia,
which has dependencies on camera, ICU, OpenGL and other things that aren't
needed for audio.
Test: build/boot
Change-Id: I99ba1a3dc3b33ca9b3abd98e7519dbf228ee62af