previewautocacher: better function structure

app/render/previewautocacher.cpp

@@ -132,10 +132,7 @@ void PreviewAutoCacher::VideoInvalidated(const TimeRange &range)
 
   // If auto-cache is enabled and a slider is not being dragged, queue up to hash these frames
   if (viewer_node_->GetVideoAutoCacheEnabled() && !NodeInputDragger::IsInputBeingDragged()) {
-    invalidated_video_.insert(range);
+    StartCachingVideoRange(range);
-    video_job_tracker_.insert(range, graph_changed_time_);
-
-    TryRender();
   }
 }
 
@@ -147,12 +144,7 @@ void PreviewAutoCacher::AudioInvalidated(const TimeRange &range)
 
   // If we're auto-caching audio or require realtime waveforms, we'll have to render this
   if (viewer_node_->GetAudioAutoCacheEnabled() || kRealTimeWaveformsEnabled) {
-    audio_job_tracker_.insert(range, graph_changed_time_);
+    StartCachingAudioRange(range);
-
-    // Start jobs to re-render the audio at this range, split into 2 second chunks
-    invalidated_audio_.insert(range);
-
-    TryRender();
   }
 }
 
@@ -472,6 +464,24 @@ void PreviewAutoCacher::AudioInvalidatedList(const TimeRangeList &list)
   }
 }
 
+void PreviewAutoCacher::StartCachingRange(const TimeRange &range, TimeRangeList *range_list, RenderJobTracker *tracker)
+{
+  range_list->insert(range);
+  tracker->insert(range, graph_changed_time_);
+
+  TryRender();
+}
+
+void PreviewAutoCacher::StartCachingVideoRange(const TimeRange &range)
+{
+  StartCachingRange(range, &invalidated_video_, &video_job_tracker_);
+}
+
+void PreviewAutoCacher::StartCachingAudioRange(const TimeRange &range)
+{
+  StartCachingRange(range, &invalidated_audio_, &audio_job_tracker_);
+}
+
 void PreviewAutoCacher::SetPlayhead(const rational &playhead)
 {
   cache_range_ = TimeRange(playhead - Config::Current()[QStringLiteral("DiskCacheBehind")].value<rational>(),

app/render/previewautocacher.h

@@ -125,6 +125,10 @@ private:
   void VideoInvalidatedList(const TimeRangeList &list);
   void AudioInvalidatedList(const TimeRangeList &list);
 
+  void StartCachingRange(const TimeRange &range, TimeRangeList *range_list, RenderJobTracker *tracker);
+  void StartCachingVideoRange(const TimeRange &range);
+  void StartCachingAudioRange(const TimeRange &range);
+
   struct HashData {
     rational time;
     QByteArray hash;