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63 lines
1.8 KiB
63 lines
1.8 KiB
4 months ago
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/*
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* Copyright (C) 2020 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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// #define LOG_NDEBUG 0
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#define LOG_TAG "MediaSampleQueue"
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#include <android-base/logging.h>
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#include <media/MediaSampleQueue.h>
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namespace android {
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bool MediaSampleQueue::enqueue(const std::shared_ptr<MediaSample>& sample) {
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std::scoped_lock<std::mutex> lock(mMutex);
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if (!mAborted) {
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mSampleQueue.push(sample);
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mCondition.notify_one();
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}
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return mAborted;
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}
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// Unfortunately std::unique_lock is incompatible with -Wthread-safety
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bool MediaSampleQueue::dequeue(std::shared_ptr<MediaSample>* sample) NO_THREAD_SAFETY_ANALYSIS {
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std::unique_lock<std::mutex> lock(mMutex);
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while (mSampleQueue.empty() && !mAborted) {
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mCondition.wait(lock);
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}
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if (!mAborted) {
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if (sample != nullptr) {
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*sample = mSampleQueue.front();
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}
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mSampleQueue.pop();
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}
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return mAborted;
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}
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bool MediaSampleQueue::isEmpty() {
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std::scoped_lock<std::mutex> lock(mMutex);
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return mSampleQueue.empty();
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}
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void MediaSampleQueue::abort() {
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std::scoped_lock<std::mutex> lock(mMutex);
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// Clear the queue and notify consumers.
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std::queue<std::shared_ptr<MediaSample>> empty = {};
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std::swap(mSampleQueue, empty);
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mAborted = true;
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mCondition.notify_all();
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}
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} // namespace android
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