AudioParams with automations must process timelines

third_party/WebKit/Source/modules/webaudio/AudioNode.h

 /*
  * Copyright (C) 2010, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 123 matching lines @@
   // Can be called from main thread or context's audio thread.  It must be
   // called while the context's graph lock is held.
   void breakConnectionWithLock();
 
   // The AudioNodeInput(s) (if any) will already have their input data available
   // when process() is called.  Subclasses will take this input data and put the
   // results in the AudioBus(s) of its AudioNodeOutput(s) (if any).
   // Called from context's audio thread.
   virtual void process(size_t framesToProcess) = 0;
 
+  // Like process(), but only causes the automations to process; the
+  // normal processing of the node is bypassed.  By default, we assume
+  // no AudioParams need to be updated.
+  virtual void processAudioParams(size_t framesToProcess){};

[hongchan, 2016/11/07 22:17:26]

Can we rename this to |processAudioParamsOnly|?

[Raymond Toy, 2016/11/07 23:49:24]

Ok. But grammatically, I think that should be |processOnlyAudioParams|.

+
   // No significant resources should be allocated until initialize() is called.
   // Processing may not occur until a node is initialized.
   virtual void initialize();
   virtual void uninitialize();
 
   // Clear internal state when the node is disabled. When a node is disabled,
   // it is no longer pulled so any internal state is never updated. But some
   // nodes (DynamicsCompressorNode) have internal state that is still
   // accessible by the user. Update the internal state as if the node were
   // still connected but processing all zeroes. This gives a consistent view
@@ skipping 211 matching lines @@
   HeapVector<Member<HeapHashSet<Member<AudioNode>>>> m_connectedNodes;
   // Represents audio node graph with Oilpan references. N-th HeapHashSet
   // represents a set of AudioParam objects connected to this AudioNode's N-th
   // output.
   HeapVector<Member<HeapHashSet<Member<AudioParam>>>> m_connectedParams;
 };
 
 }  // namespace blink
 
 #endif  // AudioNode_h