AudioFlinger: implement device specific audio effects
Add management of audio effects applied to a specific input
or output audio device.
A new class DeviceEffectProxy derived from Effectbase is added
to represent an effect attached to a particular audio device type and
address. This proxy manages one or more actual EffectModule instances
automatically added to a playback or capture thread or directly to the
audio HAL when the targeted audio device is used by an audio patch.
A new DeviceEffectManager class is added to manage creation and release
of DeviceEffectProxy instances and monitor creation and release of audio
patches and create or release actual effect instances accordingly.
Bug: 136294538
Test: make
Change-Id: I23b9f9db4459136039c5ee327cf3b1aefa7db5af
diff --git a/media/libaudiohal/impl/DeviceHalHidl.cpp b/media/libaudiohal/impl/DeviceHalHidl.cpp
index 342ceb6..7d0d83d 100644
--- a/media/libaudiohal/impl/DeviceHalHidl.cpp
+++ b/media/libaudiohal/impl/DeviceHalHidl.cpp
@@ -28,6 +28,7 @@
#include <common/all-versions/VersionUtils.h>
#include "DeviceHalHidl.h"
+#include "EffectHalHidl.h"
#include "HidlUtils.h"
#include "StreamHalHidl.h"
#include "VersionUtils.h"
@@ -43,6 +44,8 @@
using namespace ::android::hardware::audio::common::CPP_VERSION;
using namespace ::android::hardware::audio::CPP_VERSION;
+using EffectHalHidl = ::android::effect::CPP_VERSION::EffectHalHidl;
+
namespace {
status_t deviceAddressFromHal(
@@ -417,6 +420,36 @@
}
#endif
+#if MAJOR_VERSION >= 6
+status_t DeviceHalHidl::addDeviceEffect(
+ audio_port_handle_t device, sp<EffectHalInterface> effect) {
+ if (mDevice == 0) return NO_INIT;
+ return processReturn("addDeviceEffect", mDevice->addDeviceEffect(
+ static_cast<AudioPortHandle>(device),
+ static_cast<EffectHalHidl*>(effect.get())->effectId()));
+}
+#else
+status_t DeviceHalHidl::addDeviceEffect(
+ audio_port_handle_t device __unused, sp<EffectHalInterface> effect __unused) {
+ return INVALID_OPERATION;
+}
+#endif
+
+#if MAJOR_VERSION >= 6
+status_t DeviceHalHidl::removeDeviceEffect(
+ audio_port_handle_t device, sp<EffectHalInterface> effect) {
+ if (mDevice == 0) return NO_INIT;
+ return processReturn("removeDeviceEffect", mDevice->removeDeviceEffect(
+ static_cast<AudioPortHandle>(device),
+ static_cast<EffectHalHidl*>(effect.get())->effectId()));
+}
+#else
+status_t DeviceHalHidl::removeDeviceEffect(
+ audio_port_handle_t device __unused, sp<EffectHalInterface> effect __unused) {
+ return INVALID_OPERATION;
+}
+#endif
+
status_t DeviceHalHidl::dump(int fd) {
if (mDevice == 0) return NO_INIT;
native_handle_t* hidlHandle = native_handle_create(1, 0);
diff --git a/media/libaudiohal/impl/DeviceHalHidl.h b/media/libaudiohal/impl/DeviceHalHidl.h
index f7d465f..d342d4a 100644
--- a/media/libaudiohal/impl/DeviceHalHidl.h
+++ b/media/libaudiohal/impl/DeviceHalHidl.h
@@ -113,6 +113,9 @@
// List microphones
virtual status_t getMicrophones(std::vector<media::MicrophoneInfo> *microphones);
+ status_t addDeviceEffect(audio_port_handle_t device, sp<EffectHalInterface> effect) override;
+ status_t removeDeviceEffect(audio_port_handle_t device, sp<EffectHalInterface> effect) override;
+
virtual status_t dump(int fd);
private:
diff --git a/media/libaudiohal/impl/DeviceHalLocal.cpp b/media/libaudiohal/impl/DeviceHalLocal.cpp
index dfbb6b2..8021d92 100644
--- a/media/libaudiohal/impl/DeviceHalLocal.cpp
+++ b/media/libaudiohal/impl/DeviceHalLocal.cpp
@@ -206,6 +206,17 @@
}
#endif
+// Local HAL implementation does not support effects
+status_t DeviceHalLocal::addDeviceEffect(
+ audio_port_handle_t device __unused, sp<EffectHalInterface> effect __unused) {
+ return INVALID_OPERATION;
+}
+
+status_t DeviceHalLocal::removeDeviceEffect(
+ audio_port_handle_t device __unused, sp<EffectHalInterface> effect __unused) {
+ return INVALID_OPERATION;
+}
+
status_t DeviceHalLocal::dump(int fd) {
return mDev->dump(mDev, fd);
}
diff --git a/media/libaudiohal/impl/DeviceHalLocal.h b/media/libaudiohal/impl/DeviceHalLocal.h
index 36db72e..d85e2a7 100644
--- a/media/libaudiohal/impl/DeviceHalLocal.h
+++ b/media/libaudiohal/impl/DeviceHalLocal.h
@@ -106,6 +106,9 @@
// List microphones
virtual status_t getMicrophones(std::vector<media::MicrophoneInfo> *microphones);
+ status_t addDeviceEffect(audio_port_handle_t device, sp<EffectHalInterface> effect) override;
+ status_t removeDeviceEffect(audio_port_handle_t device, sp<EffectHalInterface> effect) override;
+
virtual status_t dump(int fd);
void closeOutputStream(struct audio_stream_out *stream_out);