1 /*
2  * libjingle
3  * Copyright 2011 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_MEDIA_WEBRTCMEDIAENGINE_H_
29 #define TALK_MEDIA_WEBRTCMEDIAENGINE_H_
30 
31 #include <string>
32 #include <vector>
33 
34 #include "talk/media/base/mediaengine.h"
35 #include "webrtc/config.h"
36 
37 namespace webrtc {
38 class AudioDeviceModule;
39 }
40 namespace cricket {
41 class WebRtcVideoDecoderFactory;
42 class WebRtcVideoEncoderFactory;
43 }
44 
45 namespace cricket {
46 
47 class WebRtcMediaEngineFactory {
48  public:
49   static MediaEngineInterface* Create(
50       webrtc::AudioDeviceModule* adm,
51       WebRtcVideoEncoderFactory* encoder_factory,
52       WebRtcVideoDecoderFactory* decoder_factory);
53 };
54 
55 // Verify that extension IDs are within 1-byte extension range and are not
56 // overlapping.
57 bool ValidateRtpExtensions(const std::vector<RtpHeaderExtension>& extensions);
58 
59 // Convert cricket::RtpHeaderExtension:s to webrtc::RtpExtension:s, discarding
60 // any extensions not validated by the 'supported' predicate. Duplicate
61 // extensions are removed if 'filter_redundant_extensions' is set, and also any
62 // mutually exclusive extensions (see implementation for details).
63 std::vector<webrtc::RtpExtension> FilterRtpExtensions(
64     const std::vector<RtpHeaderExtension>& extensions,
65     bool (*supported)(const std::string&),
66     bool filter_redundant_extensions);
67 
68 }  // namespace cricket
69 
70 #endif  // TALK_MEDIA_WEBRTCMEDIAENGINE_H_
71