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
39namespace cricket {
40
41class HybridDataEngine : public DataEngineInterface {
42 public:
43  // Takes ownership.
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
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
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