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/frame_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::field_mode::type in_mode, double in_fps, const core::field_mode::type out_mode, double out_fps)
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87 static const auto epsilon = 2.0;
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89 if(in_fps < 20.0 || in_fps > 80.0)
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91 //if(out_mode != core::field_mode::progressive && in_mode == core::field_mode::progressive)
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92 // return display_mode::interlace;
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94 if(out_mode == core::field_mode::progressive && in_mode != core::field_mode::progressive)
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97 return display_mode::deinterlace;
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99 return display_mode::deinterlace_bob;
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103 if(std::abs(in_fps - out_fps) < epsilon)
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105 if(in_mode != core::field_mode::progressive && out_mode == core::field_mode::progressive)
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106 return display_mode::deinterlace;
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107 //else if(in_mode == core::field_mode::progressive && out_mode != core::field_mode::progressive)
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108 // simple(); // interlace_duplicate();
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110 return display_mode::simple;
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112 else if(std::abs(in_fps/2.0 - out_fps) < epsilon)
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114 if(in_mode != core::field_mode::progressive)
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115 return display_mode::invalid;
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117 if(out_mode != core::field_mode::progressive)
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118 return display_mode::interlace;
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120 return display_mode::half;
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122 else if(std::abs(in_fps - out_fps/2.0) < epsilon)
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124 if(out_mode != core::field_mode::progressive)
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125 return display_mode::invalid;
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127 if(in_mode != core::field_mode::progressive)
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128 return display_mode::deinterlace_bob;
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130 return display_mode::duplicate;
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133 return display_mode::invalid;
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136 struct frame_muxer::implementation : boost::noncopyable
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138 std::deque<std::queue<safe_ptr<write_frame>>> video_streams_;
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139 std::deque<std::vector<int16_t>> audio_streams_;
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140 std::deque<safe_ptr<basic_frame>> frame_buffer_;
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141 display_mode::type display_mode_;
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142 const double in_fps_;
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143 const video_format_desc format_desc_;
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144 bool auto_transcode_;
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146 size_t audio_sample_count_;
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147 size_t video_frame_count_;
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149 size_t processed_audio_sample_count_;
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150 size_t processed_video_frame_count_;
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153 safe_ptr<core::frame_factory> frame_factory_;
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155 implementation(double in_fps, const safe_ptr<core::frame_factory>& frame_factory)
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156 : video_streams_(1)
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157 , audio_streams_(1)
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158 , display_mode_(display_mode::invalid)
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160 , format_desc_(frame_factory->get_video_format_desc())
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161 , auto_transcode_(env::properties().get("configuration.producers.auto-transcode", false))
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162 , audio_sample_count_(0)
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163 , video_frame_count_(0)
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164 , frame_factory_(frame_factory)
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168 void push(const std::shared_ptr<AVFrame>& video_frame, int hints)
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172 CASPAR_LOG(debug) << L"video-frame-count: " << static_cast<float>(video_frame_count_);
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173 video_frame_count_ = 0;
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174 video_streams_.push_back(std::queue<safe_ptr<write_frame>>());
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178 if(video_frame->data[0] == nullptr)
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180 video_streams_.back().push(make_safe<core::write_frame>(this));
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181 ++video_frame_count_;
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182 display_mode_ = display_mode::simple;
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186 if(display_mode_ == display_mode::invalid)
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188 if(auto_transcode_)
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190 auto in_mode = get_mode(*video_frame);
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191 display_mode_ = get_display_mode(in_mode, in_fps_, format_desc_.field_mode, format_desc_.fps);
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193 if(display_mode_ == display_mode::simple && in_mode != core::field_mode::progressive && format_desc_.field_mode != core::field_mode::progressive && video_frame->height != static_cast<int>(format_desc_.height))
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194 display_mode_ = display_mode::deinterlace_bob_reinterlace; // The frame will most likely be scaled, we need to deinterlace->reinterlace
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196 if(display_mode_ == display_mode::deinterlace)
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197 filter_ = filter(L"YADIF=0:-1");
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198 else if(display_mode_ == display_mode::deinterlace_bob || display_mode_ == display_mode::deinterlace_bob_reinterlace)
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199 filter_ = filter(L"YADIF=1:-1");
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202 display_mode_ = display_mode::simple;
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204 if(display_mode_ == display_mode::invalid)
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206 CASPAR_LOG(warning) << L"[frame_muxer] Failed to detect display-mode.";
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207 display_mode_ = display_mode::simple;
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210 CASPAR_LOG(info) << "[frame_muxer] " << display_mode::print(display_mode_);
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214 if(hints & core::frame_producer::ALPHA_HINT)
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215 video_frame->format = make_alpha_format(video_frame->format);
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217 auto format = video_frame->format;
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218 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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219 video_frame->format = PIX_FMT_GRAY8;
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221 BOOST_FOREACH(auto& av_frame, filter_.execute(video_frame))
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223 av_frame->format = format;
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225 auto frame = make_write_frame(this, av_frame, frame_factory_, hints);
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227 // Fix field-order if needed
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228 if(frame->get_type() == core::field_mode::lower && format_desc_.field_mode == core::field_mode::upper)
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229 frame->get_frame_transform().fill_translation[1] += 1.0/static_cast<double>(format_desc_.height);
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230 else if(frame->get_type() == core::field_mode::upper && format_desc_.field_mode == core::field_mode::lower)
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231 frame->get_frame_transform().fill_translation[1] -= 1.0/static_cast<double>(format_desc_.height);
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233 video_streams_.back().push(frame);
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234 ++video_frame_count_;
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237 if(video_streams_.back().size() > 8)
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238 BOOST_THROW_EXCEPTION(invalid_operation() << source_info("frame_muxer") << msg_info("video-stream overflow. This can be caused by incorrect frame-rate. Check clip meta-data."));
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241 void push(const std::shared_ptr<std::vector<int16_t>>& audio_samples)
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243 if(!audio_samples)
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245 CASPAR_LOG(debug) << L"audio-chunk-count: " << audio_sample_count_/format_desc_.audio_samples_per_frame;
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246 audio_streams_.push_back(std::vector<int16_t>());
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247 audio_sample_count_ = 0;
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251 audio_sample_count_ += audio_samples->size();
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253 boost::range::push_back(audio_streams_.back(), *audio_samples);
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255 if(audio_streams_.back().size() > 8*format_desc_.audio_samples_per_frame)
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256 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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259 safe_ptr<basic_frame> pop()
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261 auto frame = frame_buffer_.front();
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262 frame_buffer_.pop_front();
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266 size_t size() const
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268 return frame_buffer_.size();
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271 safe_ptr<core::write_frame> pop_video()
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273 auto frame = video_streams_.front().front();
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274 video_streams_.front().pop();
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279 std::vector<int16_t> pop_audio()
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281 CASPAR_VERIFY(audio_streams_.front().size() >= format_desc_.audio_samples_per_frame);
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283 auto begin = audio_streams_.front().begin();
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284 auto end = begin + format_desc_.audio_samples_per_frame;
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286 auto samples = std::vector<int16_t>(begin, end);
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287 audio_streams_.front().erase(begin, end);
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292 bool video_ready() const
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294 return video_streams_.size() > 1 || (video_streams_.size() >= audio_streams_.size() && video_ready2());
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297 bool audio_ready() const
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299 return audio_streams_.size() > 1 || (audio_streams_.size() >= video_streams_.size() && audio_ready2());
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302 bool video_ready2() const
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304 switch(display_mode_)
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306 case display_mode::deinterlace_bob_reinterlace:
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307 case display_mode::interlace:
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308 return video_streams_.front().size() >= 2;
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310 return !video_streams_.front().empty();
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314 bool audio_ready2() const
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316 switch(display_mode_)
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318 case display_mode::duplicate:
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319 return audio_streams_.front().size()/2 >= format_desc_.audio_samples_per_frame;
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321 return audio_streams_.front().size() >= format_desc_.audio_samples_per_frame;
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327 if(video_streams_.size() > 1 && audio_streams_.size() > 1 && (!video_ready2() || !audio_ready2()))
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329 if(!video_streams_.front().empty() || !audio_streams_.front().empty())
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330 CASPAR_LOG(debug) << "Truncating: " << video_streams_.front().size() << L" video-frames, " << audio_streams_.front().size() << L" audio-samples.";
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332 video_streams_.pop_front();
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333 audio_streams_.pop_front();
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336 if(!video_ready2() || !audio_ready2())
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339 switch(display_mode_)
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341 case display_mode::simple: return simple(frame_buffer_);
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342 case display_mode::duplicate: return duplicate(frame_buffer_);
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343 case display_mode::half: return half(frame_buffer_);
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344 case display_mode::interlace: return interlace(frame_buffer_);
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345 case display_mode::deinterlace_bob: return simple(frame_buffer_);
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346 case display_mode::deinterlace_bob_reinterlace: return interlace(frame_buffer_);
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347 case display_mode::deinterlace: return simple(frame_buffer_);
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348 default: BOOST_THROW_EXCEPTION(invalid_operation() << msg_info("invalid display-mode"));
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352 void simple(std::deque<safe_ptr<basic_frame>>& dest)
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354 auto frame1 = pop_video();
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355 frame1->audio_data() = pop_audio();
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357 dest.push_back(frame1);
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360 void duplicate(std::deque<safe_ptr<basic_frame>>& dest)
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362 auto frame = pop_video();
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364 auto frame1 = make_safe<core::write_frame>(*frame); // make a copy
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365 frame1->audio_data() = pop_audio();
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367 auto frame2 = frame;
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368 frame2->audio_data() = pop_audio();
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370 dest.push_back(frame1);
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371 dest.push_back(frame2);
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374 void half(std::deque<safe_ptr<basic_frame>>& dest)
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376 auto frame1 = pop_video();
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377 frame1->audio_data() = pop_audio();
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379 video_streams_.front().pop(); // Throw away
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381 dest.push_back(frame1);
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384 void interlace(std::deque<safe_ptr<basic_frame>>& dest)
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386 auto frame1 = pop_video();
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387 frame1->audio_data() = pop_audio();
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389 auto frame2 = pop_video();
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391 dest.push_back(core::basic_frame::interlace(frame1, frame2, format_desc_.field_mode));
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394 int64_t calc_nb_frames(int64_t nb_frames) const
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396 switch(display_mode_)
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398 case display_mode::interlace:
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399 case display_mode::half:
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400 return nb_frames/2;
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401 case display_mode::duplicate:
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402 case display_mode::deinterlace_bob:
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403 return nb_frames*2;
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410 frame_muxer::frame_muxer(double in_fps, const safe_ptr<core::frame_factory>& frame_factory)
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411 : impl_(new implementation(in_fps, frame_factory)){}
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412 void frame_muxer::push(const std::shared_ptr<AVFrame>& video_frame, int hints){impl_->push(video_frame, hints);}
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413 void frame_muxer::push(const std::shared_ptr<std::vector<int16_t>>& audio_samples){return impl_->push(audio_samples);}
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414 void frame_muxer::commit(){impl_->commit();}
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415 safe_ptr<basic_frame> frame_muxer::pop(){return impl_->pop();}
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416 size_t frame_muxer::size() const {return impl_->size();}
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417 bool frame_muxer::empty() const {return impl_->size() == 0;}
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418 bool frame_muxer::video_ready() const{return impl_->video_ready();}
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419 bool frame_muxer::audio_ready() const{return impl_->audio_ready();}
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420 int64_t frame_muxer::calc_nb_frames(int64_t nb_frames) const {return impl_->calc_nb_frames(nb_frames);}
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