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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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