Demux thread reads data after filter start
Demux thread should read socket data only when there are active
filters reading data. When a filter is started, the reading
thread on the demux is notified of the active filter, and it
starts reading data. When the last filter is stoped, the thread
is notified and it stops reading data.
Bug: 288170590
Test: manual
Change-Id: Idd380bc0d86c445ce9faef8e445d636bbe4e91fc
diff --git a/tv/tuner/aidl/default/Demux.cpp b/tv/tuner/aidl/default/Demux.cpp
index 34e3442..de94467 100644
--- a/tv/tuner/aidl/default/Demux.cpp
+++ b/tv/tuner/aidl/default/Demux.cpp
@@ -53,6 +53,9 @@
Demux::~Demux() {
ALOGV("%s", __FUNCTION__);
+ if (mDemuxIptvReadThread.joinable()) {
+ mDemuxIptvReadThread.join();
+ }
close();
}
@@ -114,16 +117,26 @@
}
}
-void Demux::readIptvThreadLoop(dtv_plugin* interface, dtv_streamer* streamer, void* buf,
- size_t buf_size, int timeout_ms, int buffer_timeout) {
+void Demux::setIptvThreadRunning(bool isIptvThreadRunning) {
+ std::unique_lock<std::mutex> lock(mIsIptvThreadRunningMutex);
+ mIsIptvReadThreadRunning = isIptvThreadRunning;
+ mIsIptvThreadRunningCv.notify_all();
+}
+
+void Demux::readIptvThreadLoop(dtv_plugin* interface, dtv_streamer* streamer, size_t buf_size,
+ int timeout_ms, int buffer_timeout) {
Timer *timer, *fullBufferTimer;
- while (mDemuxIptvReadThreadRunning) {
+ while (true) {
+ std::unique_lock<std::mutex> lock(mIsIptvThreadRunningMutex);
+ mIsIptvThreadRunningCv.wait(lock, [this] { return mIsIptvReadThreadRunning; });
if (mIsIptvDvrFMQFull && fullBufferTimer->get_elapsed_time_ms() > buffer_timeout) {
ALOGE("DVR FMQ has not been flushed within timeout of %d ms", buffer_timeout);
delete fullBufferTimer;
break;
}
timer = new Timer();
+ void* buf = malloc(sizeof(char) * IPTV_BUFFER_SIZE);
+ if (buf == nullptr) ALOGI("Buffer allocation failed");
ssize_t bytes_read = interface->read_stream(streamer, buf, buf_size, timeout_ms);
if (bytes_read == 0) {
double elapsed_time = timer->get_elapsed_time_ms();
@@ -157,8 +170,9 @@
default:
ALOGI("Invalid DVR Status");
}
+
+ free(buf);
}
- mDemuxIptvReadThreadRunning = false;
}
::ndk::ScopedAStatus Demux::setFrontendDataSource(int32_t in_frontendId) {
@@ -216,17 +230,8 @@
// while thread is alive, keep reading data
int timeout_ms = 20;
int buffer_timeout = 10000; // 10s
- void* buf = malloc(sizeof(char) * IPTV_BUFFER_SIZE);
- if (buf == nullptr) ALOGI("malloc buf failed");
- ALOGI("[ INFO ] Allocated buffer of size %d", IPTV_BUFFER_SIZE);
- ALOGI("Getting FMQ from DVR instance to write socket data");
- mDemuxIptvReadThreadRunning = true;
mDemuxIptvReadThread = std::thread(&Demux::readIptvThreadLoop, this, interface, streamer,
- buf, IPTV_BUFFER_SIZE, timeout_ms, buffer_timeout);
- if (mDemuxIptvReadThread.joinable()) {
- mDemuxIptvReadThread.join();
- }
- free(buf);
+ IPTV_BUFFER_SIZE, timeout_ms, buffer_timeout);
}
return ::ndk::ScopedAStatus::ok();
}
diff --git a/tv/tuner/aidl/default/Demux.h b/tv/tuner/aidl/default/Demux.h
index a23063f..ad7b7a7 100644
--- a/tv/tuner/aidl/default/Demux.h
+++ b/tv/tuner/aidl/default/Demux.h
@@ -103,7 +103,7 @@
void setIsRecording(bool isRecording);
bool isRecording();
void startFrontendInputLoop();
- void readIptvThreadLoop(dtv_plugin* interface, dtv_streamer* streamer, void* buf, size_t size,
+ void readIptvThreadLoop(dtv_plugin* interface, dtv_streamer* streamer, size_t size,
int timeout_ms, int buffer_timeout);
/**
@@ -124,6 +124,11 @@
void setInUse(bool inUse);
void setTunerService(std::shared_ptr<Tuner> tuner);
+ /**
+ * Setter for IPTV Reading thread
+ */
+ void setIptvThreadRunning(bool isIptvThreadRunning);
+
private:
// Tuner service
std::shared_ptr<Tuner> mTuner;
@@ -196,10 +201,16 @@
* If a specific filter's writing loop is still running
*/
std::atomic<bool> mFrontendInputThreadRunning;
- std::atomic<bool> mDemuxIptvReadThreadRunning;
std::atomic<bool> mKeepFetchingDataFromFrontend;
/**
+ * Controls IPTV reading thread status
+ */
+ bool mIsIptvReadThreadRunning;
+ std::mutex mIsIptvThreadRunningMutex;
+ std::condition_variable mIsIptvThreadRunningCv;
+
+ /**
* If the dvr recording is running.
*/
bool mIsRecording = false;
diff --git a/tv/tuner/aidl/default/Filter.cpp b/tv/tuner/aidl/default/Filter.cpp
index d8f5dd5..212d329 100644
--- a/tv/tuner/aidl/default/Filter.cpp
+++ b/tv/tuner/aidl/default/Filter.cpp
@@ -328,6 +328,8 @@
std::vector<DemuxFilterEvent> events;
mFilterCount += 1;
+ mDemux->setIptvThreadRunning(true);
+
// All the filter event callbacks in start are for testing purpose.
switch (mType.mainType) {
case DemuxFilterMainType::TS:
@@ -365,6 +367,9 @@
ALOGV("%s", __FUNCTION__);
mFilterCount -= 1;
+ if (mFilterCount == 0) {
+ mDemux->setIptvThreadRunning(false);
+ }
mFilterThreadRunning = false;
if (mFilterThread.joinable()) {