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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25 #include "audio/audio_decoder.h"
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26 #include "video/video_decoder.h"
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28 #include <common/utility/assert.h>
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29 #include <common/utility/timer.h>
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30 #include <common/diagnostics/graph.h>
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32 #include <core/mixer/write_frame.h>
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33 #include <core/video_format.h>
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34 #include <core/producer/frame/audio_transform.h>
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35 #include <core/producer/frame/basic_frame.h>
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36 #include <core/producer/color/color_producer.h>
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37 #include <core/producer/frame_muxer.h>
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39 #include <common/env.h>
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41 #include <boost/timer.hpp>
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42 #include <boost/range/algorithm.hpp>
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43 #include <boost/range/algorithm_ext.hpp>
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45 #include <tbb/task_group.h>
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52 struct ffmpeg_producer : public core::frame_producer
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54 const std::wstring filename_;
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56 const safe_ptr<diagnostics::graph> graph_;
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57 boost::timer frame_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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66 std::queue<safe_ptr<core::basic_frame>> output_buffer_;
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68 core::frame_muxer muxer_;
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70 tbb::task_group tasks_;
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73 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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74 : filename_(filename)
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75 , graph_(diagnostics::create_graph(narrow(print())))
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76 , frame_factory_(frame_factory)
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77 , format_desc_(frame_factory->get_video_format_desc())
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78 , input_(safe_ptr<diagnostics::graph>(graph_), filename_, loop, start, length)
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79 , video_decoder_(input_.context(), frame_factory, filter)
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80 , audio_decoder_(input_.context(), frame_factory->get_video_format_desc())
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81 , muxer_(video_decoder_.fps(), format_desc_.mode, format_desc_.fps)
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82 //, adapt_(env::properties().get("configuration.ffmpeg.auto-mode", false))
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84 graph_->add_guide("frame-time", 0.5);
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85 graph_->set_color("frame-time", diagnostics::color(1.0f, 0.0f, 0.0f));
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86 graph_->set_color("underflow", diagnostics::color(0.6f, 0.3f, 0.9f));
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88 for(int n = 0; n < 128 && muxer_.size() < 4; ++n)
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98 virtual safe_ptr<core::basic_frame> receive()
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100 if(output_buffer_.empty())
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104 while(muxer_.size() > 0)
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105 output_buffer_.push(muxer_.pop());
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109 frame_timer_.restart();
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111 for(int n = 0; n < 64 && muxer_.empty(); ++n)
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114 graph_->update_value("frame-time", static_cast<float>(frame_timer_.elapsed()*format_desc_.fps*0.5));
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118 auto frame = core::basic_frame::late();
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120 if(output_buffer_.empty())
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123 frame = core::basic_frame::eof();
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125 graph_->add_tag("underflow");
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129 frame = output_buffer_.front();
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130 output_buffer_.pop();
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136 void decode_frame()
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138 for(int n = 0; n < 32 && ((muxer_.video_frames() < 2 && !video_decoder_.ready()) || (muxer_.audio_chunks() < 2 && !audio_decoder_.ready())); ++n)
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140 std::shared_ptr<AVPacket> pkt;
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141 if(input_.try_pop(pkt))
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143 video_decoder_.push(pkt);
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144 audio_decoder_.push(pkt);
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148 tbb::parallel_invoke(
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151 if(muxer_.video_frames() < 2)
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153 BOOST_FOREACH(auto& video_frame, video_decoder_.poll())
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154 muxer_.push(video_frame);
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159 if(muxer_.audio_chunks() < 2)
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161 BOOST_FOREACH(auto& audio_chunk, audio_decoder_.poll())
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162 muxer_.push(audio_chunk);
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167 virtual std::wstring print() const
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169 return L"ffmpeg[" + boost::filesystem::wpath(filename_).filename() + L"]";
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173 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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175 static const std::vector<std::wstring> extensions = boost::assign::list_of
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176 (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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177 std::wstring filename = env::media_folder() + L"\\" + params[0];
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179 auto ext = boost::find_if(extensions, [&](const std::wstring& ex)
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181 return boost::filesystem::is_regular_file(boost::filesystem::wpath(filename + L"." + ex));
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184 if(ext == extensions.end())
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185 return core::frame_producer::empty();
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187 std::wstring path = filename + L"." + *ext;
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188 bool loop = boost::find(params, L"LOOP") != params.end();
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193 auto seek_it = std::find(params.begin(), params.end(), L"SEEK");
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194 if(seek_it != params.end())
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196 if(++seek_it != params.end())
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197 start = boost::lexical_cast<int>(*seek_it);
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200 std::wstring filter = L"";
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201 auto filter_it = std::find(params.begin(), params.end(), L"FILTER");
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202 if(filter_it != params.end())
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204 if(++filter_it != params.end())
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205 filter = *filter_it;
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208 return make_safe<ffmpeg_producer>(frame_factory, path, filter, loop, start, length);
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