Function waitForPlaybackToEnd

plugins/base/macro-action-play-audio.cpp:33–80

}

static void waitForPlaybackToEnd(Macro *macro, obs_source_t *source,
				 int64_t maxMs = 0)
{
	using namespace std::chrono_literals;

	std::unique_lock<std::mutex> lock(*GetMutex());
	SetMacroAbortWait(false);

	// The media source needs time to open and decode before reaching
	// PLAYING state. Poll until it starts (or the macro is stopped).
	while (!MacroWaitShouldAbort() && !MacroIsStopped(macro)) {
		if (obs_source_media_get_state(source) ==
		    OBS_MEDIA_STATE_PLAYING) {
			break;
		}
		GetMacroWaitCV().wait_for(lock, 10ms);
	}

	// Now wait for playback to end. Require two consecutive non-playing
	// samples to avoid false positives on brief state transitions.
	// If maxMs > 0, also stop once that many milliseconds have elapsed.
	const auto playbackStart = std::chrono::steady_clock::now();
	static const int kStopThreshold = 2;
	int stoppedCount = 0;
	while (!MacroWaitShouldAbort() && !MacroIsStopped(macro)) {
		if (maxMs > 0) {
			const auto elapsed =
				std::chrono::duration_cast<
					std::chrono::milliseconds>(
					std::chrono::steady_clock::now() -
					playbackStart)
					.count();
			if (elapsed >= maxMs) {
				obs_source_media_stop(source);
				break;
			}
		}
		if (obs_source_media_get_state(source) !=
		    OBS_MEDIA_STATE_PLAYING) {
			if (++stoppedCount >= kStopThreshold) {
				break;
			}
		} else {
			stoppedCount = 0;
		}
		GetMacroWaitCV().wait_for(lock, 10ms);
	}
}

bool MacroActionPlayAudio::PerformAction()
{