1 /** 2 * Copyright (c) 2006-2016 LOVE Development Team 3 * 4 * This software is provided 'as-is', without any express or implied 5 * warranty. In no event will the authors be held liable for any damages 6 * arising from the use of this software. 7 * 8 * Permission is granted to anyone to use this software for any purpose, 9 * including commercial applications, and to alter it and redistribute it 10 * freely, subject to the following restrictions: 11 * 12 * 1. The origin of this software must not be misrepresented; you must not 13 * claim that you wrote the original software. If you use this software 14 * in a product, an acknowledgment in the product documentation would be 15 * appreciated but is not required. 16 * 2. Altered source versions must be plainly marked as such, and must not be 17 * misrepresented as being the original software. 18 * 3. This notice may not be removed or altered from any source distribution. 19 **/ 20 21 // STL 22 #include <vector> 23 24 // LOVE 25 #include "Video.h" 26 #include "common/delay.h" 27 #include "timer/Timer.h" 28 29 namespace love 30 { 31 namespace video 32 { 33 namespace theora 34 { 35 Video()36Video::Video() 37 { 38 workerThread = new Worker(); 39 workerThread->start(); 40 } 41 ~Video()42Video::~Video() 43 { 44 delete workerThread; 45 } 46 newVideoStream(love::filesystem::File * file)47VideoStream *Video::newVideoStream(love::filesystem::File *file) 48 { 49 VideoStream *stream = new VideoStream(file); 50 workerThread->addStream(stream); 51 return stream; 52 } 53 getName() const54const char *Video::getName() const 55 { 56 return "love.video.theora"; 57 } 58 Worker()59Worker::Worker() 60 : stopping(false) 61 { 62 threadName = "VideoWorker"; 63 } 64 ~Worker()65Worker::~Worker() 66 { 67 stop(); 68 } 69 addStream(VideoStream * stream)70void Worker::addStream(VideoStream *stream) 71 { 72 love::thread::Lock l(mutex); 73 streams.push_back(stream); 74 cond->broadcast(); 75 } 76 stop()77void Worker::stop() 78 { 79 { 80 love::thread::Lock l(mutex); 81 stopping = true; 82 cond->broadcast(); 83 } 84 85 owner->wait(); 86 } 87 threadFunction()88void Worker::threadFunction() 89 { 90 double lastFrame = love::timer::Timer::getTime(); 91 92 while (true) 93 { 94 love::sleep(2); 95 96 love::thread::Lock l(mutex); 97 98 while (!stopping && streams.empty()) 99 { 100 cond->wait(mutex); 101 lastFrame = love::timer::Timer::getTime(); 102 } 103 104 if (stopping) 105 return; 106 107 double curFrame = love::timer::Timer::getTime(); 108 double dt = curFrame-lastFrame; 109 lastFrame = curFrame; 110 111 for (auto it = streams.begin(); it != streams.end(); ++it) 112 { 113 VideoStream *stream = *it; 114 if (stream->getReferenceCount() == 1) 115 { 116 // We're the only ones left 117 streams.erase(it); 118 break; 119 } 120 121 stream->threadedFillBackBuffer(dt); 122 } 123 } 124 } 125 126 } // theora 127 } // video 128 } // love 129