System-side vendor extension for handling vendor parameters
A mechanism for handling vendor parameters of the Core Audio HAL
is introduced. It is realized by means of a system side interface
'IHalAdapterVendorExtension' which can be implemented by the
vendor in order to provide bidirectional translation between raw
key-value pairs and structured VendorParameter parcelables.
If an instance of 'IHalAdapterVendorExtension' is provided
(for example, via a system ext partition), the audio framework
will use it in order to process parameters that do not map
to methods and fields of AOSP Core Audio HAL interfaces,
and call 'IModule|IStreamCommon.get|setVendorParameters'.
Bug: 274433842
Bug: 278976019
Test: atest CoreAudioHalAidlTest
Change-Id: I8e77238d85cfa91bd7b53e20ad42bd195160fb04
diff --git a/media/libaudiohal/impl/StreamHalAidl.cpp b/media/libaudiohal/impl/StreamHalAidl.cpp
index d1044dc..c84f80f 100644
--- a/media/libaudiohal/impl/StreamHalAidl.cpp
+++ b/media/libaudiohal/impl/StreamHalAidl.cpp
@@ -43,6 +43,7 @@
using ::aidl::android::hardware::audio::core::StreamDescriptor;
using ::aidl::android::hardware::audio::core::MmapBufferDescriptor;
using ::aidl::android::media::audio::common::MicrophoneDynamicInfo;
+using ::aidl::android::media::audio::IHalAdapterVendorExtension;
namespace android {
@@ -73,12 +74,14 @@
StreamHalAidl::StreamHalAidl(
std::string_view className, bool isInput, const audio_config& config,
int32_t nominalLatency, StreamContextAidl&& context,
- const std::shared_ptr<IStreamCommon>& stream)
+ const std::shared_ptr<IStreamCommon>& stream,
+ const std::shared_ptr<IHalAdapterVendorExtension>& vext)
: ConversionHelperAidl(className),
mIsInput(isInput),
mConfig(configToBase(config)),
mContext(std::move(context)),
- mStream(stream) {
+ mStream(stream),
+ mVendorExt(vext) {
{
std::lock_guard l(mLock);
mLastReply.latencyMs = nominalLatency;
@@ -125,7 +128,6 @@
status_t StreamHalAidl::setParameters(const String8& kvPairs) {
TIME_CHECK();
if (!mStream) return NO_INIT;
-
AudioParameter parameters(kvPairs);
ALOGD("%s: parameters: %s", __func__, parameters.toString().c_str());
@@ -134,18 +136,18 @@
[&](int hwAvSyncId) {
return statusTFromBinderStatus(mStream->updateHwAvSyncId(hwAvSyncId));
}));
-
- ALOGW_IF(parameters.size() != 0, "%s: unknown parameters, ignored: %s",
- __func__, parameters.toString().c_str());
- return OK;
+ return parseAndSetVendorParameters(mVendorExt, mStream, parameters);
}
status_t StreamHalAidl::getParameters(const String8& keys __unused, String8 *values) {
- ALOGD("%p %s::%s", this, getClassName().c_str(), __func__);
TIME_CHECK();
- values->clear();
- // AIDL HAL doesn't support getParameters API.
- return INVALID_OPERATION;
+ if (!mStream) return NO_INIT;
+ if (values == nullptr) {
+ return BAD_VALUE;
+ }
+ AudioParameter parameterKeys(keys), result;
+ *values = result.toString();
+ return parseAndGetVendorParameters(mVendorExt, mStream, parameterKeys, values);
}
status_t StreamHalAidl::getFrameSize(size_t *size) {
@@ -533,9 +535,11 @@
StreamOutHalAidl::StreamOutHalAidl(
const audio_config& config, StreamContextAidl&& context, int32_t nominalLatency,
- const std::shared_ptr<IStreamOut>& stream, const sp<CallbackBroker>& callbackBroker)
+ const std::shared_ptr<IStreamOut>& stream,
+ const std::shared_ptr<IHalAdapterVendorExtension>& vext,
+ const sp<CallbackBroker>& callbackBroker)
: StreamHalAidl("StreamOutHalAidl", false /*isInput*/, config, nominalLatency,
- std::move(context), getStreamCommon(stream)),
+ std::move(context), getStreamCommon(stream), vext),
mStream(stream), mCallbackBroker(callbackBroker) {
// Initialize the offload metadata
mOffloadMetadata.sampleRate = static_cast<int32_t>(config.sample_rate);
@@ -861,9 +865,11 @@
StreamInHalAidl::StreamInHalAidl(
const audio_config& config, StreamContextAidl&& context, int32_t nominalLatency,
- const std::shared_ptr<IStreamIn>& stream, const sp<MicrophoneInfoProvider>& micInfoProvider)
+ const std::shared_ptr<IStreamIn>& stream,
+ const std::shared_ptr<IHalAdapterVendorExtension>& vext,
+ const sp<MicrophoneInfoProvider>& micInfoProvider)
: StreamHalAidl("StreamInHalAidl", true /*isInput*/, config, nominalLatency,
- std::move(context), getStreamCommon(stream)),
+ std::move(context), getStreamCommon(stream), vext),
mStream(stream), mMicInfoProvider(micInfoProvider) {}
status_t StreamInHalAidl::setGain(float gain) {