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.cpp b/tv/tuner/1.0/default/Dvr.cpp
new file mode 100644
index 0000000..eb38f90
--- /dev/null
+++ b/tv/tuner/1.0/default/Dvr.cpp
@@ -0,0 +1,280 @@
+/*
+ * 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.
+ */
+
+#define LOG_TAG "android.hardware.tv.tuner@1.0-Dvr"
+
+#include "Dvr.h"
+#include <utils/Log.h>
+
+namespace android {
+namespace hardware {
+namespace tv {
+namespace tuner {
+namespace V1_0 {
+namespace implementation {
+
+#define WAIT_TIMEOUT 3000000000
+
+Dvr::Dvr() {}
+
+Dvr::Dvr(DvrType type, uint32_t bufferSize, const sp<IDvrCallback>& cb, sp<Demux> demux) {
+ mType = type;
+ mBufferSize = bufferSize;
+ mCallback = cb;
+ mDemux = demux;
+}
+
+Dvr::~Dvr() {}
+
+Return<void> Dvr::getQueueDesc(getQueueDesc_cb _hidl_cb) {
+ ALOGV("%s", __FUNCTION__);
+
+ _hidl_cb(Result::SUCCESS, *mDvrMQ->getDesc());
+ return Void();
+}
+
+Return<Result> Dvr::configure(const DvrSettings& settings) {
+ ALOGV("%s", __FUNCTION__);
+
+ mDvrSettings = settings;
+ mDvrConfigured = true;
+
+ return Result::SUCCESS;
+}
+
+Return<Result> Dvr::attachFilter(const sp<IFilter>& filter) {
+ ALOGV("%s", __FUNCTION__);
+
+ uint32_t filterId;
+ Result status;
+
+ filter->getId([&](Result result, uint32_t id) {
+ filterId = id;
+ status = result;
+ });
+
+ if (status != Result::SUCCESS) {
+ return status;
+ }
+
+ mFilters[filterId] = filter;
+
+ return Result::SUCCESS;
+}
+
+Return<Result> Dvr::detachFilter(const sp<IFilter>& filter) {
+ ALOGV("%s", __FUNCTION__);
+
+ uint32_t filterId;
+ Result status;
+
+ filter->getId([&](Result result, uint32_t id) {
+ filterId = id;
+ status = result;
+ });
+
+ if (status != Result::SUCCESS) {
+ return status;
+ }
+
+ std::map<uint32_t, sp<IFilter>>::iterator it;
+
+ it = mFilters.find(filterId);
+ if (it != mFilters.end()) {
+ mFilters.erase(filterId);
+ }
+
+ return Result::SUCCESS;
+}
+
+Return<Result> Dvr::start() {
+ ALOGV("%s", __FUNCTION__);
+
+ if (!mCallback) {
+ return Result::NOT_INITIALIZED;
+ }
+
+ if (!mDvrConfigured) {
+ return Result::INVALID_STATE;
+ }
+
+ if (mType == DvrType::PLAYBACK) {
+ pthread_create(&mDvrThread, NULL, __threadLoopPlayback, this);
+ pthread_setname_np(mDvrThread, "playback_waiting_loop");
+ } else if (mType == DvrType::RECORD) {
+ /*pthread_create(&mInputThread, NULL, __threadLoopInput, this);
+ pthread_setname_np(mInputThread, "playback_waiting_loop");*/
+ }
+
+ // TODO start another thread to send filter status callback to the framework
+
+ return Result::SUCCESS;
+}
+
+Return<Result> Dvr::stop() {
+ ALOGV("%s", __FUNCTION__);
+
+ mDvrThreadRunning = false;
+
+ std::lock_guard<std::mutex> lock(mDvrThreadLock);
+
+ return Result::SUCCESS;
+}
+
+Return<Result> Dvr::flush() {
+ ALOGV("%s", __FUNCTION__);
+
+ return Result::SUCCESS;
+}
+
+Return<Result> Dvr::close() {
+ ALOGV("%s", __FUNCTION__);
+
+ return Result::SUCCESS;
+}
+
+bool Dvr::createDvrMQ() {
+ ALOGV("%s", __FUNCTION__);
+
+ // Create a synchronized FMQ that supports blocking read/write
+ std::unique_ptr<DvrMQ> tmpDvrMQ =
+ std::unique_ptr<DvrMQ>(new (std::nothrow) DvrMQ(mBufferSize, true));
+ if (!tmpDvrMQ->isValid()) {
+ ALOGW("Failed to create FMQ of DVR");
+ return false;
+ }
+
+ mDvrMQ = std::move(tmpDvrMQ);
+
+ if (EventFlag::createEventFlag(mDvrMQ->getEventFlagWord(), &mDvrEventFlag) != OK) {
+ return false;
+ }
+
+ return true;
+}
+
+void* Dvr::__threadLoopPlayback(void* user) {
+ Dvr* const self = static_cast<Dvr*>(user);
+ self->playbackThreadLoop();
+ return 0;
+}
+
+void Dvr::playbackThreadLoop() {
+ ALOGD("[Dvr] playback threadLoop start.");
+ std::lock_guard<std::mutex> lock(mDvrThreadLock);
+ mDvrThreadRunning = true;
+
+ while (mDvrThreadRunning) {
+ uint32_t efState = 0;
+ status_t status =
+ mDvrEventFlag->wait(static_cast<uint32_t>(DemuxQueueNotifyBits::DATA_READY),
+ &efState, WAIT_TIMEOUT, true /* retry on spurious wake */);
+ if (status != OK) {
+ ALOGD("[Dvr] wait for data ready on the playback FMQ");
+ continue;
+ }
+ // Our current implementation filter the data and write it into the filter FMQ immediately
+ // after the DATA_READY from the VTS/framework
+ if (!readPlaybackFMQ() || !startFilterDispatcher()) {
+ ALOGD("[Dvr] playback data failed to be filtered. Ending thread");
+ break;
+ }
+
+ maySendPlaybackStatusCallback();
+ }
+
+ mDvrThreadRunning = false;
+ ALOGD("[Dvr] playback thread ended.");
+}
+
+void Dvr::maySendPlaybackStatusCallback() {
+ std::lock_guard<std::mutex> lock(mPlaybackStatusLock);
+ int availableToRead = mDvrMQ->availableToRead();
+ int availableToWrite = mDvrMQ->availableToWrite();
+
+ PlaybackStatus newStatus = checkPlaybackStatusChange(availableToWrite, availableToRead,
+ mDvrSettings.playback().highThreshold,
+ mDvrSettings.playback().lowThreshold);
+ if (mPlaybackStatus != newStatus) {
+ mCallback->onPlaybackStatus(newStatus);
+ mPlaybackStatus = newStatus;
+ }
+}
+
+PlaybackStatus Dvr::checkPlaybackStatusChange(uint32_t availableToWrite, uint32_t availableToRead,
+ uint32_t highThreshold, uint32_t lowThreshold) {
+ if (availableToWrite == 0) {
+ return PlaybackStatus::SPACE_FULL;
+ } else if (availableToRead > highThreshold) {
+ return PlaybackStatus::SPACE_ALMOST_FULL;
+ } else if (availableToRead < lowThreshold) {
+ return PlaybackStatus::SPACE_ALMOST_EMPTY;
+ } else if (availableToRead == 0) {
+ return PlaybackStatus::SPACE_EMPTY;
+ }
+ return mPlaybackStatus;
+}
+
+bool Dvr::readPlaybackFMQ() {
+ // Read playback data from the input FMQ
+ int size = mDvrMQ->availableToRead();
+ int playbackPacketSize = mDvrSettings.playback().packetSize;
+ vector<uint8_t> dataOutputBuffer;
+ dataOutputBuffer.resize(playbackPacketSize);
+
+ // Dispatch the packet to the PID matching filter output buffer
+ for (int i = 0; i < size / playbackPacketSize; i++) {
+ if (!mDvrMQ->read(dataOutputBuffer.data(), playbackPacketSize)) {
+ return false;
+ }
+ startTpidFilter(dataOutputBuffer);
+ }
+
+ return true;
+}
+
+void Dvr::startTpidFilter(vector<uint8_t> data) {
+ std::map<uint32_t, sp<IFilter>>::iterator it;
+ for (it = mFilters.begin(); it != mFilters.end(); it++) {
+ uint16_t pid = ((data[1] & 0x1f) << 8) | ((data[2] & 0xff));
+ if (DEBUG_DVR) {
+ ALOGW("[Dvr] start ts filter pid: %d", pid);
+ }
+ if (pid == mDemux->getFilterTpid(it->first)) {
+ mDemux->updateFilterOutput(it->first, data);
+ }
+ }
+}
+
+bool Dvr::startFilterDispatcher() {
+ std::map<uint32_t, sp<IFilter>>::iterator it;
+
+ // Handle the output data per filter type
+ for (it = mFilters.begin(); it != mFilters.end(); it++) {
+ if (mDemux->startFilterHandler(it->first) != Result::SUCCESS) {
+ return false;
+ }
+ }
+
+ return true;
+}
+
+} // namespace implementation
+} // namespace V1_0
+} // namespace tuner
+} // namespace tv
+} // namespace hardware
+} // namespace android
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