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1 /* | |
2 * libjingle | |
3 * Copyright 2013 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 #include "talk/app/webrtc/remotevideocapturer.h" | |
29 | |
30 #include "webrtc/base/logging.h" | |
31 #include "webrtc/media/base/videoframe.h" | |
32 | |
33 namespace webrtc { | |
34 | |
35 RemoteVideoCapturer::RemoteVideoCapturer() {} | |
36 | |
37 RemoteVideoCapturer::~RemoteVideoCapturer() {} | |
38 | |
39 cricket::CaptureState RemoteVideoCapturer::Start( | |
40 const cricket::VideoFormat& capture_format) { | |
41 if (capture_state() == cricket::CS_RUNNING) { | |
42 LOG(LS_WARNING) | |
43 << "RemoteVideoCapturer::Start called when it's already started."; | |
44 return capture_state(); | |
45 } | |
46 | |
47 LOG(LS_INFO) << "RemoteVideoCapturer::Start"; | |
48 SetCaptureFormat(&capture_format); | |
49 return cricket::CS_RUNNING; | |
50 } | |
51 | |
52 void RemoteVideoCapturer::Stop() { | |
53 if (capture_state() == cricket::CS_STOPPED) { | |
54 LOG(LS_WARNING) | |
55 << "RemoteVideoCapturer::Stop called when it's already stopped."; | |
56 return; | |
57 } | |
58 | |
59 LOG(LS_INFO) << "RemoteVideoCapturer::Stop"; | |
60 SetCaptureFormat(NULL); | |
61 SetCaptureState(cricket::CS_STOPPED); | |
62 } | |
63 | |
64 bool RemoteVideoCapturer::IsRunning() { | |
65 return capture_state() == cricket::CS_RUNNING; | |
66 } | |
67 | |
68 bool RemoteVideoCapturer::GetPreferredFourccs(std::vector<uint32_t>* fourccs) { | |
69 if (!fourccs) | |
70 return false; | |
71 fourccs->push_back(cricket::FOURCC_I420); | |
72 return true; | |
73 } | |
74 | |
75 bool RemoteVideoCapturer::GetBestCaptureFormat( | |
76 const cricket::VideoFormat& desired, cricket::VideoFormat* best_format) { | |
77 if (!best_format) { | |
78 return false; | |
79 } | |
80 | |
81 // RemoteVideoCapturer does not support capability enumeration. | |
82 // Use the desired format as the best format. | |
83 best_format->width = desired.width; | |
84 best_format->height = desired.height; | |
85 best_format->fourcc = cricket::FOURCC_I420; | |
86 best_format->interval = desired.interval; | |
87 return true; | |
88 } | |
89 | |
90 bool RemoteVideoCapturer::IsScreencast() const { | |
91 // TODO(ronghuawu): what about remote screencast stream. | |
92 return false; | |
93 } | |
94 | |
95 } // namespace webrtc | |
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