mirror of
https://github.com/Evolution-X/hardware_interfaces
synced 2026-02-01 11:36:00 +00:00
459b7331e9
Rename DriverInterface::getPosition -> refinePosition. This reflects the fact that the driver may provide more precise position, however this is an optional operation. Rename StreamIn/Out::mContext -> mContextInstance. This is to emphasize that StreamIn/Out actually own the context and they hold the real context instance, not just a reference/pointer to it, like other classes involved in the inheritance chain. Bug: 286914845 Test: atest VtsHalAudioCoreTargetTest Change-Id: Id7159f9bf3ee020dc7cf594ec35f5d59d23d7e31
130 lines
4.3 KiB
C++
130 lines
4.3 KiB
C++
/*
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* Copyright (C) 2023 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <cmath>
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#define LOG_TAG "AHAL_Stream"
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#include <android-base/logging.h>
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#include <audio_utils/clock.h>
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#include "core-impl/Module.h"
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#include "core-impl/StreamStub.h"
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using aidl::android::hardware::audio::common::SinkMetadata;
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using aidl::android::hardware::audio::common::SourceMetadata;
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using aidl::android::media::audio::common::AudioDevice;
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using aidl::android::media::audio::common::AudioOffloadInfo;
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using aidl::android::media::audio::common::MicrophoneInfo;
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namespace aidl::android::hardware::audio::core {
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StreamStub::StreamStub(StreamContext* context, const Metadata& metadata)
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: StreamCommonImpl(context, metadata),
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mFrameSizeBytes(getContext().getFrameSize()),
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mSampleRate(getContext().getSampleRate()),
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mIsAsynchronous(!!getContext().getAsyncCallback()),
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mIsInput(isInput(metadata)) {}
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::android::status_t StreamStub::init() {
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mIsInitialized = true;
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usleep(500);
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return ::android::OK;
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}
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::android::status_t StreamStub::drain(StreamDescriptor::DrainMode) {
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if (!mIsInitialized) {
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LOG(FATAL) << __func__ << ": must not happen for an uninitialized driver";
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}
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usleep(500);
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return ::android::OK;
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}
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::android::status_t StreamStub::flush() {
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if (!mIsInitialized) {
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LOG(FATAL) << __func__ << ": must not happen for an uninitialized driver";
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}
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usleep(500);
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return ::android::OK;
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}
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::android::status_t StreamStub::pause() {
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if (!mIsInitialized) {
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LOG(FATAL) << __func__ << ": must not happen for an uninitialized driver";
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}
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usleep(500);
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return ::android::OK;
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}
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::android::status_t StreamStub::standby() {
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if (!mIsInitialized) {
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LOG(FATAL) << __func__ << ": must not happen for an uninitialized driver";
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}
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usleep(500);
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mIsStandby = true;
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return ::android::OK;
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}
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::android::status_t StreamStub::start() {
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if (!mIsInitialized) {
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LOG(FATAL) << __func__ << ": must not happen for an uninitialized driver";
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}
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usleep(500);
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mIsStandby = false;
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return ::android::OK;
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}
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::android::status_t StreamStub::transfer(void* buffer, size_t frameCount, size_t* actualFrameCount,
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int32_t* latencyMs) {
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if (!mIsInitialized) {
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LOG(FATAL) << __func__ << ": must not happen for an uninitialized driver";
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}
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if (mIsStandby) {
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LOG(FATAL) << __func__ << ": must not happen while in standby";
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}
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static constexpr float kMicrosPerSecond = MICROS_PER_SECOND;
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static constexpr float kScaleFactor = .8f;
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if (mIsAsynchronous) {
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usleep(500);
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} else {
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const size_t delayUs = static_cast<size_t>(
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std::roundf(kScaleFactor * frameCount * kMicrosPerSecond / mSampleRate));
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usleep(delayUs);
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}
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if (mIsInput) {
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uint8_t* byteBuffer = static_cast<uint8_t*>(buffer);
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for (size_t i = 0; i < frameCount * mFrameSizeBytes; ++i) {
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byteBuffer[i] = std::rand() % 255;
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}
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}
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*actualFrameCount = frameCount;
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*latencyMs = Module::kLatencyMs;
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return ::android::OK;
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}
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void StreamStub::shutdown() {
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mIsInitialized = false;
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}
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StreamInStub::StreamInStub(StreamContext&& context, const SinkMetadata& sinkMetadata,
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const std::vector<MicrophoneInfo>& microphones)
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: StreamIn(std::move(context), microphones), StreamStub(&mContextInstance, sinkMetadata) {}
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StreamOutStub::StreamOutStub(StreamContext&& context, const SourceMetadata& sourceMetadata,
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const std::optional<AudioOffloadInfo>& offloadInfo)
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: StreamOut(std::move(context), offloadInfo), StreamStub(&mContextInstance, sourceMetadata) {}
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} // namespace aidl::android::hardware::audio::core
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