AudioFlinger: add audio session for device effects
Add specific audio session ID for effects applied to a
particular audio device.
Device specific effects will be attached to a particular audio sink or
source device identified by its unique audio port ID and will all use
this same session ID.
Only one session of this type exists on a given playback or record
thread.
All effects in this session apply to the same device ID and are created/released
when the routing (audio patch) of this thread output or input stream is updated.
Bug: 136294538
Test: make
Change-Id: I4e3a55ed1244b918429dd9e217b6efecc1ec6449
diff --git a/media/libaudioclient/AudioEffect.cpp b/media/libaudioclient/AudioEffect.cpp
index 1cc5fe6..b3862be 100644
--- a/media/libaudioclient/AudioEffect.cpp
+++ b/media/libaudioclient/AudioEffect.cpp
@@ -171,7 +171,7 @@
ALOGV("set() %p OK effect: %s id: %d status %d enabled %d pid %d", this, mDescriptor.name, mId,
mStatus, mEnabled, mClientPid);
- if (mSessionId > AUDIO_SESSION_OUTPUT_MIX) {
+ if (!audio_is_global_session(mSessionId)) {
AudioSystem::acquireAudioSessionId(mSessionId, mClientPid);
}
@@ -184,7 +184,7 @@
ALOGV("Destructor %p", this);
if (mStatus == NO_ERROR || mStatus == ALREADY_EXISTS) {
- if (mSessionId > AUDIO_SESSION_OUTPUT_MIX) {
+ if (!audio_is_global_session(mSessionId)) {
AudioSystem::releaseAudioSessionId(mSessionId, mClientPid);
}
if (mIEffect != NULL) {