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 "talk/media/base/videoframe.h" 31#include "webrtc/base/logging.h" 32 33namespace webrtc { 34 35RemoteVideoCapturer::RemoteVideoCapturer() {} 36 37RemoteVideoCapturer::~RemoteVideoCapturer() {} 38 39cricket::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 52void 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 64bool RemoteVideoCapturer::IsRunning() { 65 return capture_state() == cricket::CS_RUNNING; 66} 67 68bool 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 75bool 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 90bool RemoteVideoCapturer::IsScreencast() const { 91 // TODO(ronghuawu): what about remote screencast stream. 92 return false; 93} 94 95} // namespace webrtc 96