2 * copyright (c) 2010 Sveriges Television AB <info@casparcg.com>
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4 * This file is part of CasparCG.
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6 * CasparCG is free software: you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation, either version 3 of the License, or
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9 * (at your option) any later version.
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11 * CasparCG is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU General Public License for more details.
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16 * You should have received a copy of the GNU General Public License
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17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
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20 #include "../stdafx.h"
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22 #include "ffmpeg_producer.h"
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24 #include "frame_muxer.h"
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27 #include "audio/audio_decoder.h"
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28 #include "video/video_decoder.h"
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30 #include <common/env.h>
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31 #include <common/utility/assert.h>
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32 #include <common/diagnostics/graph.h>
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34 #include <core/video_format.h>
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35 #include <core/producer/frame_producer.h>
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36 #include <core/producer/frame/frame_factory.h>
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37 #include <core/producer/frame/basic_frame.h>
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39 #include <boost/assign.hpp>
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40 #include <boost/timer.hpp>
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41 #include <boost/foreach.hpp>
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42 #include <boost/filesystem.hpp>
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43 #include <boost/range/algorithm/find_if.hpp>
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44 #include <boost/range/algorithm/find.hpp>
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46 #include <tbb/task_group.h>
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50 struct ffmpeg_producer : public core::frame_producer
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52 const std::wstring filename_;
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54 const safe_ptr<diagnostics::graph> graph_;
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55 boost::timer frame_timer_;
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56 boost::timer video_timer_;
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57 boost::timer audio_timer_;
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59 const safe_ptr<core::frame_factory> frame_factory_;
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60 const core::video_format_desc format_desc_;
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63 video_decoder video_decoder_;
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64 audio_decoder audio_decoder_;
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72 safe_ptr<core::basic_frame> last_frame_;
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74 tbb::task_group tasks_;
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77 explicit ffmpeg_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::wstring& filename, const std::wstring& filter, bool loop, int start, int length)
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78 : filename_(filename)
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79 , graph_(diagnostics::create_graph(narrow(print())))
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80 , frame_factory_(frame_factory)
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81 , format_desc_(frame_factory->get_video_format_desc())
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82 , input_(graph_, filename_, loop, start, length)
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83 , video_decoder_(input_.context(), frame_factory, filter)
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84 , audio_decoder_(input_.context(), frame_factory->get_video_format_desc())
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85 , muxer_(video_decoder_.fps(), frame_factory)
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89 , last_frame_(core::basic_frame::empty())
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91 graph_->add_guide("frame-time", 0.5);
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92 graph_->set_color("frame-time", diagnostics::color(1.0f, 0.0f, 0.0f));
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93 graph_->set_color("video-time", diagnostics::color(1.0f, 1.0f, 0.0f));
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94 graph_->set_color("audio-time", diagnostics::color(0.2f, 1.0f, 0.2f));
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95 graph_->set_color("underflow", diagnostics::color(0.6f, 0.3f, 0.9f));
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97 for(int n = 0; n < 128 && muxer_.size() < 2; ++n)
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110 CASPAR_LOG_CURRENT_EXCEPTION();
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114 virtual safe_ptr<core::basic_frame> receive(int hints)
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116 auto frame = core::basic_frame::late();
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118 frame_timer_.restart();
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120 for(int n = 0; n < 8 && muxer_.empty(); ++n)
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121 decode_frame(hints);
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123 if(!muxer_.empty())
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124 frame = last_frame_ = muxer_.pop();
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128 frame = core::basic_frame::eof();
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131 graph_->add_tag("underflow");
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136 graph_->update_value("frame-time", static_cast<float>(frame_timer_.elapsed()*format_desc_.fps*0.5));
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141 virtual safe_ptr<core::basic_frame> last_frame() const
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143 return disable_audio(last_frame_);
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146 void decode_frame(int hints)
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152 for(int n = 0; n < 16 && ((!muxer_.video_ready() && !video_decoder_.ready()) || (!muxer_.audio_ready() && !audio_decoder_.ready())); ++n)
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154 std::shared_ptr<AVPacket> pkt;
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155 if(input_.try_pop(pkt))
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157 video_decoder_.push(pkt);
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158 audio_decoder_.push(pkt);
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162 if(!muxer_.video_ready())
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166 video_timer_.restart();
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168 auto video_frames = video_decoder_.poll();
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169 BOOST_FOREACH(auto& video, video_frames)
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170 muxer_.push(video, hints);
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172 graph_->update_value("video-time", static_cast<float>(video_timer_.elapsed()*format_desc_.fps*0.5));
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176 if(!muxer_.audio_ready())
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180 audio_timer_.restart();
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182 auto audio_samples = audio_decoder_.poll();
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183 BOOST_FOREACH(auto& audio, audio_samples)
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184 muxer_.push(audio);
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186 graph_->update_value("audio-time", static_cast<float>(audio_timer_.elapsed()*format_desc_.fps*0.5));
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191 virtual int64_t nb_frames() const
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193 auto nb_frames = input_.nb_frames() != 0 ? input_.nb_frames() : video_decoder_.nb_frames();
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194 return loop_ ? 0 : (nb_frames + late_frames_ - start_);
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197 virtual std::wstring print() const
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199 return L"ffmpeg[" + boost::filesystem::wpath(filename_).filename() + L"]";
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203 safe_ptr<core::frame_producer> create_ffmpeg_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::vector<std::wstring>& params)
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205 static const std::vector<std::wstring> extensions = boost::assign::list_of
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206 (L"mpg")(L"mpeg")(L"avi")(L"mov")(L"qt")(L"webm")(L"dv")(L"mp4")(L"f4v")(L"flv")(L"mkv")(L"mka")(L"wmv")(L"wma")(L"ogg")(L"divx")(L"xvid")(L"wav")(L"mp3")(L"m2v");
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207 std::wstring filename = env::media_folder() + L"\\" + params[0];
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209 auto ext = boost::find_if(extensions, [&](const std::wstring& ex)
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211 return boost::filesystem::is_regular_file(boost::filesystem::wpath(filename + L"." + ex));
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214 if(ext == extensions.end())
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215 return core::frame_producer::empty();
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217 std::wstring path = filename + L"." + *ext;
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218 bool loop = boost::find(params, L"LOOP") != params.end();
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223 auto seek_it = std::find(params.begin(), params.end(), L"SEEK");
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224 if(seek_it != params.end())
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226 if(++seek_it != params.end())
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227 start = boost::lexical_cast<int>(*seek_it);
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230 std::wstring filter = L"";
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231 auto filter_it = std::find(params.begin(), params.end(), L"FILTER");
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232 if(filter_it != params.end())
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234 if(++filter_it != params.end())
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235 filter = *filter_it;
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238 return make_safe<ffmpeg_producer>(frame_factory, path, filter, loop, start, length);
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