1 #include "../StdAfx.h"
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3 #include "frame_muxer.h"
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5 #include "filter/filter.h"
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9 #include <core/producer/frame_producer.h>
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10 #include <core/producer/frame/basic_frame.h>
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11 #include <core/producer/frame/image_transform.h>
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12 #include <core/producer/frame/pixel_format.h>
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13 #include <core/producer/frame/frame_factory.h>
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14 #include <core/mixer/write_frame.h>
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16 #include <common/env.h>
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17 #include <common/exception/exceptions.h>
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18 #include <common/log/log.h>
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20 #if defined(_MSC_VER)
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21 #pragma warning (push)
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22 #pragma warning (disable : 4244)
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26 #define __STDC_CONSTANT_MACROS
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27 #define __STDC_LIMIT_MACROS
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28 #include <libavcodec/avcodec.h>
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29 #include <libavformat/avformat.h>
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31 #if defined(_MSC_VER)
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32 #pragma warning (pop)
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35 #include <boost/foreach.hpp>
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36 #include <boost/range/algorithm_ext/push_back.hpp>
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42 using namespace caspar::core;
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55 deinterlace_bob_reinterlace,
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61 static std::wstring print(display_mode::type value)
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68 return L"duplicate";
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72 return L"interlace";
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73 case deinterlace_bob:
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74 return L"deinterlace_bob";
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75 case deinterlace_bob_reinterlace:
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76 return L"deinterlace_bob_reinterlace";
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78 return L"deinterlace";
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85 display_mode::type get_display_mode(const core::video_mode::type in_mode, double in_fps, const core::video_mode::type out_mode, double out_fps)
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87 static const auto epsilon = 2.0;
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89 if(std::abs(in_fps - out_fps) < epsilon)
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91 if(in_mode != core::video_mode::progressive && out_mode == core::video_mode::progressive)
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92 return display_mode::deinterlace;
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93 //else if(in_mode == core::video_mode::progressive && out_mode != core::video_mode::progressive)
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94 // simple(); // interlace_duplicate();
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96 return display_mode::simple;
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98 else if(std::abs(in_fps/2.0 - out_fps) < epsilon)
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100 if(in_mode != core::video_mode::progressive)
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101 return display_mode::invalid;
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103 if(out_mode != core::video_mode::progressive)
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104 return display_mode::interlace;
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106 return display_mode::half;
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108 else if(std::abs(in_fps - out_fps/2.0) < epsilon)
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110 if(out_mode != core::video_mode::progressive)
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111 return display_mode::invalid;
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113 if(in_mode != core::video_mode::progressive)
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114 return display_mode::deinterlace_bob;
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116 return display_mode::duplicate;
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119 return display_mode::invalid;
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122 struct frame_muxer::implementation : boost::noncopyable
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124 std::deque<std::queue<safe_ptr<write_frame>>> video_streams_;
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125 std::deque<std::vector<int16_t>> audio_streams_;
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126 std::deque<safe_ptr<basic_frame>> frame_buffer_;
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127 display_mode::type display_mode_;
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128 const double in_fps_;
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129 const video_format_desc format_desc_;
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130 bool auto_transcode_;
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132 size_t audio_sample_count_;
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133 size_t video_frame_count_;
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135 size_t processed_audio_sample_count_;
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136 size_t processed_video_frame_count_;
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139 safe_ptr<core::frame_factory> frame_factory_;
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141 implementation(double in_fps, const safe_ptr<core::frame_factory>& frame_factory)
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142 : video_streams_(1)
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143 , audio_streams_(1)
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144 , display_mode_(display_mode::invalid)
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146 , format_desc_(frame_factory->get_video_format_desc())
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147 , auto_transcode_(env::properties().get("configuration.producers.auto-transcode", false))
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148 , audio_sample_count_(0)
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149 , video_frame_count_(0)
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150 , frame_factory_(frame_factory)
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154 void push(const std::shared_ptr<AVFrame>& video_frame, int hints)
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158 CASPAR_LOG(debug) << L"video-frame-count: " << static_cast<float>(video_frame_count_);
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159 video_frame_count_ = 0;
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160 video_streams_.push_back(std::queue<safe_ptr<write_frame>>());
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164 if(video_frame->data[0] == nullptr)
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166 video_streams_.back().push(make_safe<core::write_frame>(this));
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167 ++video_frame_count_;
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168 display_mode_ = display_mode::simple;
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172 if(display_mode_ == display_mode::invalid)
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174 if(auto_transcode_)
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176 auto in_mode = get_mode(*video_frame);
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177 display_mode_ = get_display_mode(in_mode, in_fps_, format_desc_.mode, format_desc_.fps);
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179 if(display_mode_ == display_mode::simple && in_mode != core::video_mode::progressive && format_desc_.mode != core::video_mode::progressive && video_frame->height != static_cast<int>(format_desc_.height))
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180 display_mode_ = display_mode::deinterlace_bob_reinterlace; // The frame will most likely be scaled, we need to deinterlace->reinterlace
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182 if(display_mode_ == display_mode::deinterlace)
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183 filter_ = filter(L"YADIF=0:-1");
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184 else if(display_mode_ == display_mode::deinterlace_bob || display_mode_ == display_mode::deinterlace_bob_reinterlace)
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185 filter_ = filter(L"YADIF=1:-1");
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188 display_mode_ = display_mode::simple;
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190 if(display_mode_ == display_mode::invalid)
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192 CASPAR_LOG(warning) << L"[frame_muxer] Failed to detect display-mode.";
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193 display_mode_ = display_mode::simple;
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196 CASPAR_LOG(info) << "[frame_muxer] " << display_mode::print(display_mode_);
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200 if(hints & core::frame_producer::ALPHA_HINT)
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201 video_frame->format = make_alpha_format(video_frame->format);
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203 auto format = video_frame->format;
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204 if(video_frame->format == CASPAR_PIX_FMT_LUMA) // CASPAR_PIX_FMT_LUMA is not valid for filter, change it to GRAY8
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205 video_frame->format = PIX_FMT_GRAY8;
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207 BOOST_FOREACH(auto& av_frame, filter_.execute(video_frame))
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209 av_frame->format = format;
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211 auto frame = make_write_frame(this, av_frame, frame_factory_, hints);
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213 // Fix field-order if needed
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214 if(frame->get_type() == core::video_mode::lower && format_desc_.mode == core::video_mode::upper)
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215 frame->get_image_transform().set_fill_translation(0.0f, 0.5/static_cast<double>(frame->get_pixel_format_desc().planes[0].height));
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216 else if(frame->get_type() == core::video_mode::upper && format_desc_.mode == core::video_mode::lower)
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217 frame->get_image_transform().set_fill_translation(0.0f, -0.5/static_cast<double>(frame->get_pixel_format_desc().planes[0].height));
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219 video_streams_.back().push(frame);
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220 ++video_frame_count_;
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223 if(video_streams_.back().size() > 32)
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224 BOOST_THROW_EXCEPTION(invalid_operation() << source_info("frame_muxer") << msg_info("audio-stream overflow. This can be caused by incorrect frame-rate. Check clip meta-data."));
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227 void push(const std::shared_ptr<std::vector<int16_t>>& audio_samples)
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229 if(!audio_samples)
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231 CASPAR_LOG(debug) << L"audio-chunk-count: " << audio_sample_count_/format_desc_.audio_samples_per_frame;
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232 audio_streams_.push_back(std::vector<int16_t>());
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233 audio_sample_count_ = 0;
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237 audio_sample_count_ += audio_samples->size();
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239 boost::range::push_back(audio_streams_.back(), *audio_samples);
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241 if(audio_streams_.back().size() > 32*format_desc_.audio_samples_per_frame)
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242 BOOST_THROW_EXCEPTION(invalid_operation() << source_info("frame_muxer") << msg_info("audio-stream overflow. This can be caused by incorrect frame-rate. Check clip meta-data."));
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245 safe_ptr<basic_frame> pop()
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247 auto frame = frame_buffer_.front();
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248 frame_buffer_.pop_front();
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252 size_t size() const
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254 return frame_buffer_.size();
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257 safe_ptr<core::write_frame> pop_video()
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259 auto frame = video_streams_.front().front();
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260 video_streams_.front().pop();
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265 std::vector<int16_t> pop_audio()
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267 CASPAR_VERIFY(audio_streams_.front().size() >= format_desc_.audio_samples_per_frame);
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269 auto begin = audio_streams_.front().begin();
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270 auto end = begin + format_desc_.audio_samples_per_frame;
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272 auto samples = std::vector<int16_t>(begin, end);
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273 audio_streams_.front().erase(begin, end);
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278 bool video_ready() const
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280 return video_streams_.size() > 1 || (video_streams_.size() >= audio_streams_.size() && video_ready2());
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283 bool audio_ready() const
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285 return audio_streams_.size() > 1 || (audio_streams_.size() >= video_streams_.size() && audio_ready2());
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288 bool video_ready2() const
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290 switch(display_mode_)
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292 case display_mode::deinterlace_bob_reinterlace:
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293 case display_mode::interlace:
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294 return video_streams_.front().size() >= 2;
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296 return !video_streams_.front().empty();
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300 bool audio_ready2() const
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302 switch(display_mode_)
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304 case display_mode::duplicate:
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305 return audio_streams_.front().size()/2 >= format_desc_.audio_samples_per_frame;
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307 return audio_streams_.front().size() >= format_desc_.audio_samples_per_frame;
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313 if(video_streams_.size() > 1 && audio_streams_.size() > 1 && (!video_ready2() || !audio_ready2()))
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315 if(!video_streams_.front().empty() || !audio_streams_.front().empty())
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316 CASPAR_LOG(debug) << "Truncating: " << video_streams_.front().size() << L" video-frames, " << audio_streams_.front().size() << L" audio-samples.";
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318 video_streams_.pop_front();
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319 audio_streams_.pop_front();
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322 if(!video_ready2() || !audio_ready2())
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325 switch(display_mode_)
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327 case display_mode::simple: return simple(frame_buffer_);
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328 case display_mode::duplicate: return duplicate(frame_buffer_);
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329 case display_mode::half: return half(frame_buffer_);
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330 case display_mode::interlace: return interlace(frame_buffer_);
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331 case display_mode::deinterlace_bob: return simple(frame_buffer_);
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332 case display_mode::deinterlace_bob_reinterlace: return interlace(frame_buffer_);
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333 case display_mode::deinterlace: return simple(frame_buffer_);
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334 default: BOOST_THROW_EXCEPTION(invalid_operation() << msg_info("invalid display-mode"));
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338 void simple(std::deque<safe_ptr<basic_frame>>& dest)
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340 auto frame1 = pop_video();
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341 frame1->audio_data() = pop_audio();
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343 dest.push_back(frame1);
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346 void duplicate(std::deque<safe_ptr<basic_frame>>& dest)
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348 auto frame = pop_video();
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350 auto frame1 = make_safe<core::write_frame>(*frame); // make a copy
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351 frame1->audio_data() = pop_audio();
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353 auto frame2 = frame;
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354 frame2->audio_data() = pop_audio();
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356 dest.push_back(frame1);
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357 dest.push_back(frame2);
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360 void half(std::deque<safe_ptr<basic_frame>>& dest)
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362 auto frame1 = pop_video();
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363 frame1->audio_data() = pop_audio();
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365 video_streams_.front().pop(); // Throw away
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367 dest.push_back(frame1);
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370 void interlace(std::deque<safe_ptr<basic_frame>>& dest)
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372 auto frame1 = pop_video();
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373 frame1->audio_data() = pop_audio();
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375 auto frame2 = pop_video();
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377 dest.push_back(core::basic_frame::interlace(frame1, frame2, format_desc_.mode));
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380 int64_t calc_nb_frames(int64_t nb_frames) const
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382 switch(display_mode_)
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384 case display_mode::interlace:
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385 case display_mode::half:
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386 return nb_frames/2;
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387 case display_mode::duplicate:
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388 case display_mode::deinterlace_bob:
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389 return nb_frames*2;
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396 frame_muxer::frame_muxer(double in_fps, const safe_ptr<core::frame_factory>& frame_factory)
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397 : impl_(new implementation(in_fps, frame_factory)){}
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398 void frame_muxer::push(const std::shared_ptr<AVFrame>& video_frame, int hints){impl_->push(video_frame, hints);}
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399 void frame_muxer::push(const std::shared_ptr<std::vector<int16_t>>& audio_samples){return impl_->push(audio_samples);}
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400 void frame_muxer::commit(){impl_->commit();}
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401 safe_ptr<basic_frame> frame_muxer::pop(){return impl_->pop();}
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402 size_t frame_muxer::size() const {return impl_->size();}
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403 bool frame_muxer::empty() const {return impl_->size() == 0;}
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404 bool frame_muxer::video_ready() const{return impl_->video_ready();}
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405 bool frame_muxer::audio_ready() const{return impl_->audio_ready();}
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406 int64_t frame_muxer::calc_nb_frames(int64_t nb_frames) const {return impl_->calc_nb_frames(nb_frames);}
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