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      1 /*
      2  * libjingle
      3  * Copyright 2012, Google Inc.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are met:
      7  *
      8  *  1. Redistributions of source code must retain the above copyright notice,
      9  *     this list of conditions and the following disclaimer.
     10  *  2. Redistributions in binary form must reproduce the above copyright notice,
     11  *     this list of conditions and the following disclaimer in the documentation
     12  *     and/or other materials provided with the distribution.
     13  *  3. The name of the author may not be used to endorse or promote products
     14  *     derived from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
     17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
     19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #ifndef TALK_APP_WEBRTC_MEDIASTREAMPROVIDER_H_
     29 #define TALK_APP_WEBRTC_MEDIASTREAMPROVIDER_H_
     30 
     31 namespace cricket {
     32 
     33 class AudioRenderer;
     34 class VideoCapturer;
     35 class VideoRenderer;
     36 struct AudioOptions;
     37 struct VideoOptions;
     38 
     39 }  // namespace cricket
     40 
     41 namespace webrtc {
     42 
     43 // This interface is called by AudioTrackHandler classes in mediastreamhandler.h
     44 // to change the settings of an audio track connected to certain PeerConnection.
     45 class AudioProviderInterface {
     46  public:
     47   // Enable/disable the audio playout of a remote audio track with |ssrc|.
     48   virtual void SetAudioPlayout(uint32 ssrc, bool enable,
     49                                cricket::AudioRenderer* renderer) = 0;
     50   // Enable/disable sending audio on the local audio track with |ssrc|.
     51   // When |enable| is true |options| should be applied to the audio track.
     52   virtual void SetAudioSend(uint32 ssrc, bool enable,
     53                             const cricket::AudioOptions& options,
     54                             cricket::AudioRenderer* renderer) = 0;
     55 
     56   // Sets the audio playout volume of a remote audio track with |ssrc|.
     57   // |volume| is in the range of [0, 10].
     58   virtual void SetAudioPlayoutVolume(uint32 ssrc, double volume) = 0;
     59 
     60  protected:
     61   virtual ~AudioProviderInterface() {}
     62 };
     63 
     64 // This interface is called by VideoTrackHandler classes in mediastreamhandler.h
     65 // to change the settings of a video track connected to a certain
     66 // PeerConnection.
     67 class VideoProviderInterface {
     68  public:
     69   virtual bool SetCaptureDevice(uint32 ssrc,
     70                                 cricket::VideoCapturer* camera) = 0;
     71   // Enable/disable the video playout of a remote video track with |ssrc|.
     72   virtual void SetVideoPlayout(uint32 ssrc, bool enable,
     73                                cricket::VideoRenderer* renderer) = 0;
     74   // Enable sending video on the local video track with |ssrc|.
     75   virtual void SetVideoSend(uint32 ssrc, bool enable,
     76                             const cricket::VideoOptions* options) = 0;
     77 
     78  protected:
     79   virtual ~VideoProviderInterface() {}
     80 };
     81 
     82 }  // namespace webrtc
     83 
     84 #endif  // TALK_APP_WEBRTC_MEDIASTREAMPROVIDER_H_
     85