Refactor Tuner HAL Default Impl for Filter and Dvr separation
Test: manual
Bug: 135709325
Change-Id: I130f555315683fa02272f40d1e6209c5695c884a
diff --git a/tv/tuner/1.0/default/Dvr.h b/tv/tuner/1.0/default/Dvr.h
new file mode 100644
index 0000000..fbb778c
--- /dev/null
+++ b/tv/tuner/1.0/default/Dvr.h
@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2019 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.
+ */
+
+#ifndef ANDROID_HARDWARE_TV_TUNER_V1_0_DVR_H_
+#define ANDROID_HARDWARE_TV_TUNER_V1_0_DVR_H_
+
+#include <android/hardware/tv/tuner/1.0/IDvr.h>
+#include <fmq/MessageQueue.h>
+#include <math.h>
+#include <set>
+#include "Demux.h"
+#include "Frontend.h"
+#include "Tuner.h"
+
+using namespace std;
+
+namespace android {
+namespace hardware {
+namespace tv {
+namespace tuner {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hardware::EventFlag;
+using ::android::hardware::kSynchronizedReadWrite;
+using ::android::hardware::MessageQueue;
+using ::android::hardware::MQDescriptorSync;
+using ::android::hardware::tv::tuner::V1_0::IDemux;
+using ::android::hardware::tv::tuner::V1_0::IDvrCallback;
+using ::android::hardware::tv::tuner::V1_0::Result;
+
+using DvrMQ = MessageQueue<uint8_t, kSynchronizedReadWrite>;
+
+class Demux;
+class Filter;
+class Frontend;
+class Tuner;
+
+class Dvr : public IDvr {
+ public:
+ Dvr();
+
+ Dvr(DvrType type, uint32_t bufferSize, const sp<IDvrCallback>& cb, sp<Demux> demux);
+
+ ~Dvr();
+
+ virtual Return<void> getQueueDesc(getQueueDesc_cb _hidl_cb) override;
+
+ virtual Return<Result> configure(const DvrSettings& settings) override;
+
+ virtual Return<Result> attachFilter(const sp<IFilter>& filter) override;
+
+ virtual Return<Result> detachFilter(const sp<IFilter>& filter) override;
+
+ virtual Return<Result> start() override;
+
+ virtual Return<Result> stop() override;
+
+ virtual Return<Result> flush() override;
+
+ virtual Return<Result> close() override;
+
+ /**
+ * To create a DvrMQ and its Event Flag.
+ *
+ * Return false is any of the above processes fails.
+ */
+ bool createDvrMQ();
+
+ private:
+ // Demux service
+ sp<Demux> mDemux;
+
+ DvrType mType;
+ uint32_t mBufferSize;
+ sp<IDvrCallback> mCallback;
+ std::map<uint32_t, sp<IFilter>> mFilters;
+
+ void deleteEventFlag();
+ bool readDataFromMQ();
+ void maySendPlaybackStatusCallback();
+ void maySendRecordStatusCallback();
+ PlaybackStatus checkPlaybackStatusChange(uint32_t availableToWrite, uint32_t availableToRead,
+ uint32_t highThreshold, uint32_t lowThreshold);
+ /**
+ * A dispatcher to read and dispatch input data to all the started filters.
+ * Each filter handler handles the data filtering/output writing/filterEvent updating.
+ */
+ bool readPlaybackFMQ();
+ void startTpidFilter(vector<uint8_t> data);
+ bool startFilterDispatcher();
+ static void* __threadLoopPlayback(void* user);
+ static void* __threadLoopBroadcast(void* user);
+ void playbackThreadLoop();
+ void broadcastInputThreadLoop();
+
+ unique_ptr<DvrMQ> mDvrMQ;
+ EventFlag* mDvrEventFlag;
+ /**
+ * Demux callbacks used on filter events or IO buffer status
+ */
+ bool mDvrConfigured = false;
+ DvrSettings mDvrSettings;
+
+ // Thread handlers
+ pthread_t mDvrThread;
+ pthread_t mBroadcastInputThread;
+
+ // FMQ status local records
+ PlaybackStatus mPlaybackStatus;
+ /**
+ * If a specific filter's writing loop is still running
+ */
+ bool mDvrThreadRunning;
+ bool mBroadcastInputThreadRunning;
+ bool mKeepFetchingDataFromFrontend;
+ /**
+ * Lock to protect writes to the FMQs
+ */
+ std::mutex mWriteLock;
+ /**
+ * Lock to protect writes to the input status
+ */
+ std::mutex mPlaybackStatusLock;
+ std::mutex mBroadcastInputThreadLock;
+ std::mutex mDvrThreadLock;
+
+ const bool DEBUG_DVR = false;
+};
+
+} // namespace implementation
+} // namespace V1_0
+} // namespace tuner
+} // namespace tv
+} // namespace hardware
+} // namespace android
+
+#endif // ANDROID_HARDWARE_TV_TUNER_V1_0_DVR_H_
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