Method Thread

lib/advanced-scene-switcher.cpp:220–323

* Main switcher thread ******************************************************************************/

 * Main switcher thread
 ******************************************************************************/
void SwitcherData::Thread()
{
	blog(LOG_INFO, "started");
	int sleep = 0;
	int linger = 0;
	std::chrono::milliseconds duration;
	auto startTime = std::chrono::high_resolution_clock::now();
	auto endTime = std::chrono::high_resolution_clock::now();
	switcher->firstIntervalAfterStop = true;

	while (true) {
		std::unique_lock<std::mutex> lock(m);
		mainLoopLock = &lock;

		bool match = false;
		OBSWeakSource scene;
		OBSWeakSource transition;
		// The previous scene might have changed during the linger duration,
		// if a longer transition is used than the configured check interval
		bool setPrevSceneAfterLinger = false;
		bool macroMatch = false;
		endTime = std::chrono::high_resolution_clock::now();
		auto runTime =
			std::chrono::duration_cast<std::chrono::milliseconds>(
				endTime - startTime);

		if (sleep) {
			duration = std::chrono::milliseconds(sleep);
		} else {
			duration = std::chrono::milliseconds(interval) +
				   std::chrono::milliseconds(linger) - runTime;
			if (duration.count() < 1) {
				vblog(LOG_INFO,
				      "detected busy loop - refusing to sleep less than 1ms");
				duration = std::chrono::milliseconds(10);
			}
		}

		vblog(LOG_INFO, "try to sleep for %ld",
		      (long int)duration.count());
		SetWaitScene();
		cv.wait_for(lock, duration);

		startTime = std::chrono::high_resolution_clock::now();
		sleep = 0;
		linger = 0;

		Prune();
		if (stop) {
			break;
		}
		if (checkPause()) {
			continue;
		}
		SetPreconditions();
		match = CheckForMatch(scene, transition, linger,
				      setPrevSceneAfterLinger, macroMatch);
		if (stop) {