2 * Copyright 2013 Sveriges Television AB http://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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24 #include "image/blend_modes.h"
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26 #include "../producer/frame/frame_factory.h"
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27 #include "../monitor/monitor.h"
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29 #include <common/memory/safe_ptr.h>
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30 #include <common/concurrency/target.h>
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31 #include <common/diagnostics/graph.h>
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33 #include <boost/property_tree/ptree_fwd.hpp>
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34 #include <boost/thread/future.hpp>
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48 struct frame_transform;
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49 struct pixel_format;
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50 struct channel_layout;
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52 class mixer : public target<std::pair<std::map<int, safe_ptr<core::basic_frame>>, std::shared_ptr<void>>>
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53 , public core::frame_factory
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56 typedef target<std::pair<safe_ptr<read_frame>, std::shared_ptr<void>>> target_t;
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58 explicit mixer(const safe_ptr<diagnostics::graph>& graph, const safe_ptr<target_t>& target, const video_format_desc& format_desc, const safe_ptr<ogl_device>& ogl, const channel_layout& audio_channel_layout);
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62 virtual void send(const std::pair<std::map<int, safe_ptr<basic_frame>>, std::shared_ptr<void>>& frames) override;
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66 safe_ptr<core::write_frame> create_frame(const void* tag, const core::pixel_format_desc& desc, const channel_layout& audio_channel_layout);
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68 core::video_format_desc get_video_format_desc() const; // nothrow
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69 void set_video_format_desc(const video_format_desc& format_desc);
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71 blend_mode::type get_blend_mode(int index);
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72 void set_blend_mode(int index, blend_mode::type value);
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73 chroma get_chroma(int index);
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74 void set_chroma(int index, const chroma& value);
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75 void clear_blend_mode(int index);
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76 void clear_blend_modes();
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77 void set_straight_alpha_output(bool value);
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78 bool get_straight_alpha_output();
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80 float get_master_volume();
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81 void set_master_volume(float volume);
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83 boost::unique_future<boost::property_tree::wptree> info() const;
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84 boost::unique_future<boost::property_tree::wptree> delay_info() const;
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86 monitor::subject& monitor_output();
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89 struct implementation;
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90 safe_ptr<implementation> impl_;
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