1 #include "../stdafx.h"
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4 #include "frame_producer.h"
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6 #include "../producer/frame/basic_frame.h"
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7 #include "../producer/frame/audio_transform.h"
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9 namespace caspar { namespace core {
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11 struct layer::implementation : boost::noncopyable
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13 safe_ptr<frame_producer> foreground_;
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14 safe_ptr<frame_producer> background_;
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15 safe_ptr<basic_frame> last_frame_;
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19 : foreground_(frame_producer::empty())
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20 , background_(frame_producer::empty())
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21 , last_frame_(basic_frame::empty())
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22 , is_paused_(false){}
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34 void load(const safe_ptr<frame_producer>& producer, bool preview)
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36 background_ = producer;
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48 if(background_ != frame_producer::empty())
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50 background_->set_leading_producer(foreground_);
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51 foreground_ = background_;
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52 background_ = frame_producer::empty();
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60 last_frame_ = basic_frame::empty();
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61 foreground_ = frame_producer::empty();
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64 safe_ptr<basic_frame> receive()
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67 last_frame_->get_audio_transform().set_has_audio(false);
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69 last_frame_ = receive_and_follow(foreground_);
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75 layer::layer() : impl_(new implementation()){}
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76 layer::layer(layer&& other) : impl_(std::move(other.impl_)){}
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77 layer& layer::operator=(layer&& other)
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79 impl_ = std::move(other.impl_);
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82 void layer::swap(layer& other)
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84 impl_.swap(other.impl_);
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86 void layer::load(const safe_ptr<frame_producer>& frame_producer, bool preview){return impl_->load(frame_producer, preview);}
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87 void layer::play(){impl_->play();}
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88 void layer::pause(){impl_->pause();}
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89 void layer::stop(){impl_->stop();}
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90 safe_ptr<basic_frame> layer::receive() {return impl_->receive();}
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91 safe_ptr<frame_producer> layer::foreground() const { return impl_->foreground_;}
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92 safe_ptr<frame_producer> layer::background() const { return impl_->background_;}
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