audio HAL: Minimal example implementation
Implements basic functionality for enumerating
capabilities of an audio module, audio patches
creation, and opening of I/O streams.
Bug: 205884982
Test: atest VtsHalAudioCoreTargetTest
Merged-In: Ie5d67e9192a598260e762ae9368f99592c8ad97e
Change-Id: Ie5d67e9192a598260e762ae9368f99592c8ad97e
(cherry picked from commit ecdc6ca8e872a0478fae7d76b1ad4d805b024eed)
diff --git a/audio/aidl/default/Stream.cpp b/audio/aidl/default/Stream.cpp
new file mode 100644
index 0000000..e16b2c6
--- /dev/null
+++ b/audio/aidl/default/Stream.cpp
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AHAL_Stream"
+#define LOG_NDEBUG 0
+#include <android-base/logging.h>
+
+#include "core-impl/Stream.h"
+
+using aidl::android::hardware::audio::common::SinkMetadata;
+using aidl::android::hardware::audio::common::SourceMetadata;
+using aidl::android::media::audio::common::AudioOffloadInfo;
+
+namespace aidl::android::hardware::audio::core {
+
+StreamIn::StreamIn(const SinkMetadata& sinkMetadata) : mMetadata(sinkMetadata) {}
+
+ndk::ScopedAStatus StreamIn::close() {
+ LOG(DEBUG) << __func__;
+ if (!mIsClosed) {
+ mIsClosed = true;
+ return ndk::ScopedAStatus::ok();
+ } else {
+ LOG(ERROR) << __func__ << ": stream was already closed";
+ return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_STATE);
+ }
+}
+
+ndk::ScopedAStatus StreamIn::updateMetadata(const SinkMetadata& in_sinkMetadata) {
+ LOG(DEBUG) << __func__;
+ if (!mIsClosed) {
+ mMetadata = in_sinkMetadata;
+ return ndk::ScopedAStatus::ok();
+ }
+ LOG(ERROR) << __func__ << ": stream was closed";
+ return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_STATE);
+}
+
+StreamOut::StreamOut(const SourceMetadata& sourceMetadata,
+ const std::optional<AudioOffloadInfo>& offloadInfo)
+ : mMetadata(sourceMetadata), mOffloadInfo(offloadInfo) {}
+
+ndk::ScopedAStatus StreamOut::close() {
+ LOG(DEBUG) << __func__;
+ if (!mIsClosed) {
+ mIsClosed = true;
+ return ndk::ScopedAStatus::ok();
+ }
+ LOG(ERROR) << __func__ << ": stream was already closed";
+ return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_STATE);
+}
+
+ndk::ScopedAStatus StreamOut::updateMetadata(const SourceMetadata& in_sourceMetadata) {
+ LOG(DEBUG) << __func__;
+ if (!mIsClosed) {
+ mMetadata = in_sourceMetadata;
+ return ndk::ScopedAStatus::ok();
+ }
+ LOG(ERROR) << __func__ << ": stream was closed";
+ return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_STATE);
+}
+
+} // namespace aidl::android::hardware::audio::core