2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
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4 * This file is part of CasparCG (www.casparcg.com).
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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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19 * Author: Robert Nagy, ronag89@gmail.com
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22 #include "../stdafx.h"
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24 #include "ffmpeg_producer.h"
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26 #include "../ffmpeg_error.h"
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28 #include "muxer/frame_muxer.h"
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29 #include "input/input.h"
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30 #include "util/util.h"
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31 #include "audio/audio_decoder.h"
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32 #include "video/video_decoder.h"
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34 #include <common/env.h>
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35 #include <common/utility/assert.h>
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36 #include <common/utility/param.h>
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37 #include <common/diagnostics/graph.h>
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39 #include <core/video_format.h>
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40 #include <core/producer/frame_producer.h>
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41 #include <core/producer/frame/frame_factory.h>
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42 #include <core/producer/frame/basic_frame.h>
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43 #include <core/producer/frame/frame_transform.h>
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45 #include <boost/algorithm/string.hpp>
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46 #include <boost/assign.hpp>
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47 #include <boost/timer.hpp>
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48 #include <boost/foreach.hpp>
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49 #include <boost/filesystem.hpp>
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50 #include <boost/range/algorithm/find_if.hpp>
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51 #include <boost/range/algorithm/find.hpp>
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52 #include <boost/regex.hpp>
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54 #include <tbb/parallel_invoke.h>
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60 namespace caspar { namespace ffmpeg {
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62 struct ffmpeg_producer : public core::frame_producer
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64 const std::wstring filename_;
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66 const safe_ptr<diagnostics::graph> graph_;
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67 boost::timer frame_timer_;
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69 const safe_ptr<core::frame_factory> frame_factory_;
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70 const core::video_format_desc format_desc_;
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73 std::unique_ptr<video_decoder> video_decoder_;
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74 std::unique_ptr<audio_decoder> audio_decoder_;
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75 std::unique_ptr<frame_muxer> muxer_;
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78 const uint32_t start_;
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79 const uint32_t length_;
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81 safe_ptr<core::basic_frame> last_frame_;
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83 std::queue<std::pair<safe_ptr<core::basic_frame>, size_t>> frame_buffer_;
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85 int64_t frame_number_;
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86 uint32_t file_frame_number_;
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89 explicit ffmpeg_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::wstring& filename, const std::wstring& filter, bool loop, uint32_t start, uint32_t length)
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90 : filename_(filename)
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91 , frame_factory_(frame_factory)
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92 , format_desc_(frame_factory->get_video_format_desc())
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93 , input_(graph_, filename_, loop, start, length)
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94 , fps_(read_fps(*input_.context(), format_desc_.fps))
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97 , last_frame_(core::basic_frame::empty())
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100 graph_->add_guide("frame-time", 0.5);
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101 graph_->set_color("frame-time", diagnostics::color(0.1f, 1.0f, 0.1f));
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102 graph_->set_color("underflow", diagnostics::color(0.6f, 0.3f, 0.9f));
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103 diagnostics::register_graph(graph_);
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107 video_decoder_.reset(new video_decoder(input_.context()));
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109 catch(averror_stream_not_found&)
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111 CASPAR_LOG(warning) << "No video-stream found. Running without video.";
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115 CASPAR_LOG_CURRENT_EXCEPTION();
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116 CASPAR_LOG(warning) << "Failed to open video-stream. Running without video.";
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121 audio_decoder_.reset(new audio_decoder(input_.context(), frame_factory->get_video_format_desc()));
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123 catch(averror_stream_not_found&)
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125 CASPAR_LOG(warning) << "No audio-stream found. Running without audio.";
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129 CASPAR_LOG_CURRENT_EXCEPTION();
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130 CASPAR_LOG(warning) << "Failed to open audio-stream. Running without audio.";
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133 if(!video_decoder_ && !audio_decoder_)
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134 BOOST_THROW_EXCEPTION(averror_stream_not_found() << msg_info("No streams found"));
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136 muxer_.reset(new frame_muxer(fps_, frame_factory, filter));
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141 virtual safe_ptr<core::basic_frame> receive(int hints) override
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143 frame_timer_.restart();
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145 // TODO: buffered frame is not deinterlaced.
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146 muxer_->force_deinterlacing((hints & core::frame_producer::DEINTERLACE_HINT) != 0);
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148 for(int n = 0; n < 16 && frame_buffer_.size() < 2; ++n)
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149 try_decode_frame(hints);
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151 graph_->update_value("frame-time", frame_timer_.elapsed()*format_desc_.fps*0.5);
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153 if(frame_buffer_.empty() && input_.eof())
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154 return last_frame();
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156 if(frame_buffer_.empty())
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158 graph_->add_tag("underflow");
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159 return core::basic_frame::late();
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162 auto frame = frame_buffer_.front();
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163 frame_buffer_.pop();
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166 file_frame_number_ = frame.second;
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168 graph_->set_text(print());
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170 return last_frame_ = frame.first;
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173 virtual safe_ptr<core::basic_frame> last_frame() const override
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175 return disable_audio(last_frame_);
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178 virtual uint32_t nb_frames() const override
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181 return std::numeric_limits<uint32_t>::max();
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183 uint32_t nb_frames = file_nb_frames();
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185 nb_frames = std::min(length_, nb_frames);
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186 nb_frames = muxer_->calc_nb_frames(nb_frames);
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188 return nb_frames > start_ ? nb_frames - start_ : 0;
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191 uint32_t file_nb_frames() const
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193 uint32_t file_nb_frames = 0;
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194 file_nb_frames = std::max(file_nb_frames, video_decoder_ ? video_decoder_->nb_frames() : 0);
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195 file_nb_frames = std::max(file_nb_frames, audio_decoder_ ? audio_decoder_->nb_frames() : 0);
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196 return file_nb_frames;
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199 virtual boost::unique_future<std::wstring> call(const std::wstring& param) override
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201 boost::promise<std::wstring> promise;
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202 promise.set_value(do_call(param));
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203 return promise.get_future();
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206 virtual std::wstring print() const override
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208 return L"ffmpeg[" + boost::filesystem::wpath(filename_).filename() + L"|"
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209 + print_mode() + L"|"
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210 + boost::lexical_cast<std::wstring>(file_frame_number_) + L"/" + boost::lexical_cast<std::wstring>(file_nb_frames()) + L"]";
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213 boost::property_tree::wptree info() const override
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215 boost::property_tree::wptree info;
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216 info.add(L"type", L"ffmpeg-producer");
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217 info.add(L"filename", filename_);
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218 info.add(L"width", video_decoder_ ? video_decoder_->width() : 0);
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219 info.add(L"height", video_decoder_ ? video_decoder_->height() : 0);
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220 info.add(L"progressive", video_decoder_ ? video_decoder_->is_progressive() : false);
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221 info.add(L"fps", fps_);
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222 info.add(L"loop", input_.loop());
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223 info.add(L"frame-number", frame_number_);
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224 auto nb_frames2 = nb_frames();
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225 info.add(L"nb-frames", nb_frames2 == std::numeric_limits<int64_t>::max() ? -1 : nb_frames2);
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226 info.add(L"file-frame-number", file_frame_number_);
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227 info.add(L"file-nb-frames", file_nb_frames());
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233 std::wstring print_mode() const
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235 return video_decoder_ ? ffmpeg::print_mode(video_decoder_->width(), video_decoder_->height(), fps_, !video_decoder_->is_progressive()) : L"";
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238 std::wstring do_call(const std::wstring& param)
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240 static const boost::wregex loop_exp(L"LOOP\\s*(?<VALUE>\\d?)", boost::regex::icase);
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241 static const boost::wregex seek_exp(L"SEEK\\s+(?<VALUE>\\d+)", boost::regex::icase);
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243 boost::wsmatch what;
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244 if(boost::regex_match(param, what, loop_exp))
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246 if(!what["VALUE"].str().empty())
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247 input_.loop(boost::lexical_cast<bool>(what["VALUE"].str()));
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248 return boost::lexical_cast<std::wstring>(input_.loop());
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250 if(boost::regex_match(param, what, seek_exp))
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252 input_.seek(boost::lexical_cast<uint32_t>(what["VALUE"].str()));
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256 BOOST_THROW_EXCEPTION(invalid_argument());
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259 void try_decode_frame(int hints)
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261 std::shared_ptr<AVPacket> pkt;
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263 for(int n = 0; n < 32 && ((video_decoder_ && !video_decoder_->ready()) || (audio_decoder_ && !audio_decoder_->ready())) && input_.try_pop(pkt); ++n)
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266 video_decoder_->push(pkt);
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268 audio_decoder_->push(pkt);
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271 std::shared_ptr<AVFrame> video;
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272 std::shared_ptr<core::audio_buffer> audio;
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274 tbb::parallel_invoke(
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277 if(!muxer_->video_ready() && video_decoder_)
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278 video = video_decoder_->poll();
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282 if(!muxer_->audio_ready() && audio_decoder_)
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283 audio = audio_decoder_->poll();
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286 muxer_->push(video, hints);
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287 muxer_->push(audio);
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289 if(!audio_decoder_)
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291 if(video == flush_video())
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292 muxer_->push(flush_audio());
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293 else if(!muxer_->audio_ready())
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294 muxer_->push(empty_audio());
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297 if(!video_decoder_)
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299 if(audio == flush_audio())
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300 muxer_->push(flush_video(), 0);
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301 else if(!muxer_->video_ready())
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302 muxer_->push(empty_video(), 0);
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305 size_t file_frame_number = 0;
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306 file_frame_number = std::max(file_frame_number, video_decoder_ ? video_decoder_->file_frame_number() : 0);
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307 //file_frame_number = std::max(file_frame_number, audio_decoder_ ? audio_decoder_->file_frame_number() : 0);
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309 for(auto frame = muxer_->poll(); frame; frame = muxer_->poll())
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310 frame_buffer_.push(std::make_pair(make_safe_ptr(frame), file_frame_number));
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314 safe_ptr<core::frame_producer> create_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::vector<std::wstring>& params)
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316 auto filename = probe_stem(env::media_folder() + L"\\" + params.at(0));
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318 if(filename.empty())
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319 return core::frame_producer::empty();
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321 auto loop = boost::range::find(params, L"LOOP") != params.end();
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322 auto start = get_param(L"SEEK", params, static_cast<uint32_t>(0));
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323 auto length = get_param(L"LENGTH", params, std::numeric_limits<uint32_t>::max());
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324 auto filter_str = get_param(L"FILTER", params, L"");
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326 boost::replace_all(filter_str, L"DEINTERLACE", L"YADIF=0:-1");
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327 boost::replace_all(filter_str, L"DEINTERLACE_BOB", L"YADIF=1:-1");
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329 return create_producer_destroy_proxy(make_safe<ffmpeg_producer>(frame_factory, filename, filter_str, loop, start, length));
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