Prevent a voice channel from sending data before a renderer is set.

webrtc/api/mediastreamprovider.h

 /*
  *  Copyright 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #ifndef WEBRTC_API_MEDIASTREAMPROVIDER_H_
 #define WEBRTC_API_MEDIASTREAMPROVIDER_H_
 
 #include "webrtc/base/basictypes.h"
 #include "webrtc/base/scoped_ptr.h"
 #include "webrtc/media/base/videosinkinterface.h"
 
 namespace cricket {
 
-class AudioRenderer;
+class AudioSource;
 class VideoCapturer;
 class VideoFrame;
 class VideoRenderer;
 struct AudioOptions;
 struct VideoOptions;
 
 }  // namespace cricket
 
 namespace webrtc {
 
@@ skipping 11 matching lines @@
 // of an audio track connected to certain PeerConnection.
 class AudioProviderInterface {
  public:
   // Enable/disable the audio playout of a remote audio track with |ssrc|.
   virtual void SetAudioPlayout(uint32_t ssrc, bool enable) = 0;
   // Enable/disable sending audio on the local audio track with |ssrc|.
   // When |enable| is true |options| should be applied to the audio track.
   virtual void SetAudioSend(uint32_t ssrc,
                             bool enable,
                             const cricket::AudioOptions& options,
-                            cricket::AudioRenderer* renderer) = 0;
+                            cricket::AudioSource* source) = 0;
 
   // Sets the audio playout volume of a remote audio track with |ssrc|.
   // |volume| is in the range of [0, 10].
   virtual void SetAudioPlayoutVolume(uint32_t ssrc, double volume) = 0;
 
   // Allows for setting a direct audio sink for an incoming audio source.
   // Only one audio sink is supported per ssrc and ownership of the sink is
   // passed to the provider.
   virtual void SetRawAudioSink(
       uint32_t ssrc,
@@ skipping 19 matching lines @@
                             bool enable,
                             const cricket::VideoOptions* options) = 0;
 
  protected:
   virtual ~VideoProviderInterface() {}
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_API_MEDIASTREAMPROVIDER_H_