1 #include "../stdafx.h"
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3 #include "ffmpeg_producer.h"
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6 #include "audio/audio_decoder.h"
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7 #include "video/video_decoder.h"
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9 #include <common/utility/timer.h>
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10 #include <common/diagnostics/graph.h>
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12 #include <core/producer/frame/basic_frame.h>
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13 #include <core/producer/frame/write_frame.h>
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14 #include <core/producer/frame/audio_transform.h>
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15 #include <core/video_format.h>
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17 #include <common/env.h>
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18 #include <common/utility/timer.h>
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20 #include <tbb/parallel_invoke.h>
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23 #include <functional>
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27 struct ffmpeg_producer : public core::frame_producer
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29 const std::wstring filename_;
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31 printer parent_printer_;
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33 std::shared_ptr<diagnostics::graph> graph_;
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36 std::unique_ptr<audio_decoder> audio_decoder_;
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37 std::unique_ptr<video_decoder> video_decoder_;
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39 std::deque<safe_ptr<core::write_frame>> video_frame_channel_;
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40 std::deque<std::vector<short>> audio_chunk_channel_;
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42 std::queue<safe_ptr<core::basic_frame>> ouput_channel_;
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44 safe_ptr<core::basic_frame> last_frame_;
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45 std::shared_ptr<core::frame_factory> frame_factory_;
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47 std::unique_ptr<input> input_;
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49 explicit ffmpeg_producer(const std::wstring& filename, bool loop)
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50 : filename_(filename)
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52 , last_frame_(core::basic_frame(core::basic_frame::empty()))
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55 graph_ = diagnostics::create_graph(boost::bind(&ffmpeg_producer::print, this));
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56 graph_->add_guide("frame-time", 0.5);
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57 graph_->set_color("frame-time", diagnostics::color(1.0f, 0.0f, 0.0f));
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60 virtual void initialize(const safe_ptr<core::frame_factory>& frame_factory)
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62 frame_factory_ = frame_factory;
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63 input_.reset(new input(safe_ptr<diagnostics::graph>(graph_), filename_, loop_, std::bind(&ffmpeg_producer::print, this)));
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64 video_decoder_.reset(input_->get_video_codec_context().get() ? new video_decoder(input_->get_video_codec_context().get(), frame_factory) : nullptr);
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65 audio_decoder_.reset(input_->get_audio_codec_context().get() ? new audio_decoder(input_->get_audio_codec_context().get(), frame_factory->get_video_format_desc().fps) : nullptr);
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67 double frame_time = 1.0f/input_->fps();
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68 double format_frame_time = 1.0/frame_factory->get_video_format_desc().fps;
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69 if(abs(frame_time - format_frame_time) > 0.0001)
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70 CASPAR_LOG(warning) << print() << L" Invalid framerate detected. This may cause distorted audio during playback.";
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74 virtual void set_parent_printer(const printer& parent_printer)
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76 parent_printer_ = parent_printer;
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79 virtual safe_ptr<core::basic_frame> receive()
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81 perf_timer_.reset();
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83 while(ouput_channel_.empty() && !input_->is_eof())
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85 aligned_buffer video_packet;
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86 if(video_frame_channel_.size() < 3 && video_decoder_)
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87 video_packet = input_->get_video_packet();
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89 aligned_buffer audio_packet;
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90 if(audio_chunk_channel_.size() < 3 && audio_decoder_)
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91 audio_packet = input_->get_audio_packet();
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93 tbb::parallel_invoke(
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95 { // Video Decoding and Scaling
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96 if(!video_packet.empty() && video_decoder_)
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100 auto frame = video_decoder_->execute(video_packet);
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101 frame->tag(reinterpret_cast<int>(this));
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102 video_frame_channel_.push_back(std::move(frame));
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106 CASPAR_LOG_CURRENT_EXCEPTION();
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107 video_decoder_.reset();
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108 CASPAR_LOG(warning) << print() << " removed video-stream.";
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113 { // Audio Decoding
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114 if(!audio_packet.empty() && audio_decoder_)
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118 auto chunks = audio_decoder_->execute(audio_packet);
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119 audio_chunk_channel_.insert(audio_chunk_channel_.end(), chunks.begin(), chunks.end());
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123 CASPAR_LOG_CURRENT_EXCEPTION();
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124 audio_decoder_.reset();
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125 CASPAR_LOG(warning) << print() << " removed audio-stream.";
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130 while((!video_frame_channel_.empty() || !video_decoder_) && (!audio_chunk_channel_.empty() || !audio_decoder_))
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132 std::shared_ptr<core::write_frame> frame;
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136 frame = video_frame_channel_.front();
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137 video_frame_channel_.pop_front();
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140 if(audio_decoder_)
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144 frame = frame_factory_->create_frame(1, 1);
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145 std::fill(frame->image_data().begin(), frame->image_data().end(), 0);
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148 frame->audio_data() = std::move(audio_chunk_channel_.front());
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149 audio_chunk_channel_.pop_front();
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152 ouput_channel_.push(safe_ptr<core::write_frame>(frame));
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155 if(ouput_channel_.empty() && video_packet.empty() && audio_packet.empty())
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156 return last_frame_;
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159 graph_->update_value("frame-time", static_cast<float>(perf_timer_.elapsed()/frame_factory_->get_video_format_desc().interval*0.5));
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161 auto result = last_frame_;
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162 if(!ouput_channel_.empty())
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164 result = std::move(ouput_channel_.front());
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165 last_frame_ = core::basic_frame(result);
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166 last_frame_->get_audio_transform().set_gain(0.0); // last_frame should not have audio
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167 ouput_channel_.pop();
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169 else if(input_->is_eof())
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170 return core::basic_frame::eof();
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175 virtual std::wstring print() const
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177 return (parent_printer_ ? parent_printer_() + L"/" : L"") + L"ffmpeg[" + boost::filesystem::wpath(filename_).filename() + L"]";
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181 safe_ptr<core::frame_producer> create_ffmpeg_producer(const std::vector<std::wstring>& params)
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183 static const std::vector<std::wstring> extensions = boost::assign::list_of
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184 (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"wmw")(L"wma")(L"ogg")(L"divx")(L"wav")(L"mp3");
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185 std::wstring filename = env::media_folder() + L"\\" + params[0];
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187 auto ext = std::find_if(extensions.begin(), extensions.end(), [&](const std::wstring& ex) -> bool
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189 return boost::filesystem::is_regular_file(boost::filesystem::wpath(filename).replace_extension(ex));
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192 if(ext == extensions.end())
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193 return core::frame_producer::empty();
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195 std::wstring path = filename + L"." + *ext;
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196 bool loop = std::find(params.begin(), params.end(), L"LOOP") != params.end();
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198 return make_safe<ffmpeg_producer>(path, loop);
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