void ManualImageStreamer::producerStream() {
uint i = mStartNumber;
int replays = 0;
uint64_t previousTimestamp = 0;
auto previousTimestampTime = std::chrono::high_resolution_clock::time_point::min();
int currentSequence = 0;
while(true) {
{
std::unique_lock<std::mutex> lock(mStopMutex);
if(mStop) {
mStreamIsStarted = false;
mFirstFrameIsInserted = false;
mHasReachedEnd = false;
break;
}
}
try {
Image::pointer image = mImages[currentSequence].at(i);
addOutputData(0, image);
if(image->getCreationTimestamp() != 0) {
uint64_t timestamp = image->getCreationTimestamp();
// Wait as long as necessary before adding image
// Time passed since last frame
auto timePassed = std::chrono::duration_cast<std::chrono::milliseconds>(
std::chrono::high_resolution_clock::now() - previousTimestampTime);
while (timestamp > previousTimestamp + timePassed.count()) {
// Wait
int64_t left = (timestamp - previousTimestamp) - timePassed.count();
reportInfo() << "Sleeping for " << left << " ms" << reportEnd();
std::this_thread::sleep_for(std::chrono::milliseconds(left));
timePassed = std::chrono::duration_cast<std::chrono::milliseconds>(
std::chrono::high_resolution_clock::now() - previousTimestampTime);
}
previousTimestamp = timestamp;
previousTimestampTime = std::chrono::high_resolution_clock::now();
}
if(mSleepTime > 0)
std::this_thread::sleep_for(std::chrono::milliseconds(mSleepTime));
if(!mFirstFrameIsInserted) {
{
std::lock_guard<std::mutex> lock(mFirstFrameMutex);
mFirstFrameIsInserted = true;
}
mFirstFrameCondition.notify_one();
}
mNrOfFrames++;
i += mStepSize;
} catch(std::out_of_range &e) {
if(i > 0) {
reportInfo() << "Reached end of stream" << Reporter::end();
// If there where no files found at all, we need to release the execute method
if(!mFirstFrameIsInserted) {
{
std::lock_guard<std::mutex> lock(mFirstFrameMutex);
mFirstFrameIsInserted = true;
}
mFirstFrameCondition.notify_one();
}
if(mLoop || (mNrOfReplays > 0 && replays != mNrOfReplays || (currentSequence < mImages.size()-1))) {
// Restart stream
previousTimestamp = 0;
previousTimestampTime = std::chrono::high_resolution_clock::time_point::min();
replays++;
i = mStartNumber;
currentSequence++;
// Go to first sequence if looping is enabled
if(mLoop && currentSequence == mImages.size()) {
currentSequence = 0;
}
continue;
}
mHasReachedEnd = true;
// Reached end of stream
break;
} else {
throw e;
}
}
}
}
