2 * Copyright (c) 2011 Sveriges Television AB <info@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 "frame_producer.h"
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26 #include <common/memory/safe_ptr.h>
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27 #include <common/concurrency/target.h>
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28 #include <common/diagnostics/graph.h>
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30 #include <boost/noncopyable.hpp>
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31 #include <boost/property_tree/ptree_fwd.hpp>
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32 #include <boost/thread/future.hpp>
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34 #include <functional>
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36 namespace caspar { namespace core {
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38 struct video_format_desc;
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39 struct frame_transform;
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41 class stage : boost::noncopyable
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44 typedef std::function<struct frame_transform(struct frame_transform)> transform_func_t;
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45 typedef std::tuple<int, transform_func_t, unsigned int, std::wstring> transform_tuple_t;
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46 typedef target<std::pair<std::map<int, safe_ptr<basic_frame>>, std::shared_ptr<void>>> target_t;
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48 explicit stage(const safe_ptr<diagnostics::graph>& graph, const safe_ptr<target_t>& target, const video_format_desc& format_desc);
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52 void apply_transforms(const std::vector<transform_tuple_t>& transforms);
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53 void apply_transform(int index, const transform_func_t& transform, unsigned int mix_duration = 0, const std::wstring& tween = L"linear");
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54 void clear_transforms(int index);
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55 void clear_transforms();
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59 void load(int index, const safe_ptr<frame_producer>& producer, bool preview = false, int auto_play_delta = -1);
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60 void pause(int index);
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61 void play(int index);
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62 void stop(int index);
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63 void clear(int index);
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65 void swap_layers(const safe_ptr<stage>& other);
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66 void swap_layer(int index, size_t other_index);
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67 void swap_layer(int index, size_t other_index, const safe_ptr<stage>& other);
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69 boost::unique_future<std::wstring> call(int index, bool foreground, const std::wstring& param);
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70 boost::unique_future<safe_ptr<frame_producer>> foreground(int index);
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71 boost::unique_future<safe_ptr<frame_producer>> background(int index);
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73 boost::unique_future<boost::property_tree::wptree> info() const;
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74 boost::unique_future<boost::property_tree::wptree> info(int layer) const;
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76 void set_video_format_desc(const video_format_desc& format_desc);
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79 struct implementation;
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80 safe_ptr<implementation> impl_;
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