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1 /* | |
2 * libjingle | |
3 * Copyright 2014 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_WEBRTC_SIMULCAST_H_ | |
29 #define TALK_MEDIA_WEBRTC_SIMULCAST_H_ | |
30 | |
31 #include <vector> | |
32 | |
33 #include "webrtc/base/basictypes.h" | |
34 #include "webrtc/config.h" | |
35 | |
36 namespace cricket { | |
37 struct StreamParams; | |
38 | |
39 // Config for use with screen cast when temporal layers are enabled. | |
40 struct ScreenshareLayerConfig { | |
41 public: | |
42 ScreenshareLayerConfig(int tl0_bitrate, int tl1_bitrate); | |
43 | |
44 // Bitrates, for temporal layers 0 and 1. | |
45 int tl0_bitrate_kbps; | |
46 int tl1_bitrate_kbps; | |
47 | |
48 static ScreenshareLayerConfig GetDefault(); | |
49 | |
50 // Parse bitrate from group name on format "(tl0_bitrate)-(tl1_bitrate)", | |
51 // eg. "100-1000" for the default rates. | |
52 static bool FromFieldTrialGroup(const std::string& group, | |
53 ScreenshareLayerConfig* config); | |
54 }; | |
55 | |
56 // TODO(pthatcher): Write unit tests just for these functions, | |
57 // independent of WebrtcVideoEngine. | |
58 | |
59 int GetTotalMaxBitrateBps(const std::vector<webrtc::VideoStream>& streams); | |
60 | |
61 // Get the ssrcs of the SIM group from the stream params. | |
62 void GetSimulcastSsrcs(const StreamParams& sp, std::vector<uint32_t>* ssrcs); | |
63 | |
64 // Get simulcast settings. | |
65 std::vector<webrtc::VideoStream> GetSimulcastConfig(size_t max_streams, | |
66 int width, | |
67 int height, | |
68 int max_bitrate_bps, | |
69 int max_qp, | |
70 int max_framerate); | |
71 | |
72 } // namespace cricket | |
73 | |
74 #endif // TALK_MEDIA_WEBRTC_SIMULCAST_H_ | |
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