1 /*
2  * libjingle
3  * Copyright 2012 Google Inc. and Robin Seggelmann
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_MEDIA_SCTP_HYBRIDDATAENGINE_H_
29 #define TALK_MEDIA_SCTP_HYBRIDDATAENGINE_H_
30 
31 #include <string>
32 #include <vector>
33 
34 #include "talk/media/base/codec.h"
35 #include "talk/media/base/mediachannel.h"
36 #include "talk/media/base/mediaengine.h"
37 #include "webrtc/base/scoped_ptr.h"
38 
39 namespace cricket {
40 
41 class HybridDataEngine : public DataEngineInterface {
42  public:
43   // Takes ownership.
HybridDataEngine(DataEngineInterface * first,DataEngineInterface * second)44   HybridDataEngine(DataEngineInterface* first,
45                    DataEngineInterface* second)
46       : first_(first),
47         second_(second) {
48     codecs_ = first_->data_codecs();
49     codecs_.insert(
50         codecs_.end(),
51         second_->data_codecs().begin(),
52         second_->data_codecs().end());
53   }
54 
CreateChannel(DataChannelType data_channel_type)55   virtual DataMediaChannel* CreateChannel(DataChannelType data_channel_type) {
56     DataMediaChannel* channel = NULL;
57     if (first_) {
58       channel = first_->CreateChannel(data_channel_type);
59     }
60     if (!channel && second_) {
61       channel = second_->CreateChannel(data_channel_type);
62     }
63     return channel;
64   }
65 
data_codecs()66   virtual const std::vector<DataCodec>& data_codecs() { return codecs_; }
67 
68  private:
69   rtc::scoped_ptr<DataEngineInterface> first_;
70   rtc::scoped_ptr<DataEngineInterface> second_;
71   std::vector<DataCodec> codecs_;
72 };
73 
74 }  // namespace cricket
75 
76 #endif  // TALK_MEDIA_SCTP_HYBRIDDATAENGINE_H_
77