audiorenderer: split audio rendering up into chunks for better parallelism

2020-03-14 23:27:41 +11:00
parent 1c4411a4ad
commit 78baf7661f
2 changed files with 14 additions and 0 deletions
@@ -100,6 +100,18 @@ void AudioRenderBackend::ConnectWorkerToThis(RenderWorker *worker)
  connect(arw, &AudioRenderWorker::ConformUnavailable, this, &AudioRenderBackend::ConformUnavailable, Qt::QueuedConnection);
 }

+TimeRange AudioRenderBackend::PopNextFrameFromQueue()
+{
+  TimeRange range = cache_queue_.first();
+
+  // Limit range per worker to 2 seconds (FIXME: arbitrary, should be tweaked, maybe even in config?)
+  range.set_out(qMin(range.out(), range.in() + rational(2)));
+
+  cache_queue_.RemoveTimeRange(range);
+
+  return range;
+}
+
 void AudioRenderBackend::ConformUnavailable(StreamPtr stream, const TimeRange &range, const rational &stream_time, const AudioRenderingParams& params)
 {
  ConformWaitInfo info = {stream, params, range, stream_time};