git.sesse.net Git - casparcg/blob - core/producer/stage.h

   1 /*
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
   3 *
   4 * This file is part of CasparCG (www.casparcg.com).
   5 *
   6 * CasparCG is free software: you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License as published by
   8 * the Free Software Foundation, either version 3 of the License, or
   9 * (at your option) any later version.
  10 *
  11 * CasparCG is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
  18 *
  19 * Author: Robert Nagy, ronag89@gmail.com
  20 */
  21
  22 #pragma once
  23
  24 #include "../fwd.h"
  25 #include "../monitor/monitor.h"
  26 #include "../interaction/interaction_sink.h"
  27
  28 #include <common/forward.h>
  29 #include <common/future_fwd.h>
  30 #include <common/memory.h>
  31 #include <common/tweener.h>
  32
  33 #include <boost/optional.hpp>
  34 #include <boost/property_tree/ptree_fwd.hpp>
  35
  36 #include <functional>
  37 #include <map>
  38 #include <tuple>
  39 #include <vector>
  40
  41 FORWARD2(caspar, diagnostics, class graph);
  42
  43 namespace caspar { namespace core {
  44
  45 //typedef reactive::observable<std::map<int, class draw_frame>> frame_observable;
  46
  47 class stage final : public interaction_sink
  48 {
  49         stage(const stage&);
  50         stage& operator=(const stage&);
  51 public:
  52
  53         // Static Members
  54
  55         typedef std::function<struct frame_transform(struct frame_transform)> transform_func_t;
  56         typedef std::tuple<int, transform_func_t, unsigned int, tweener> transform_tuple_t;
  57
  58         // Constructors
  59
  60         explicit stage(int channel_index, spl::shared_ptr<caspar::diagnostics::graph> graph);
  61
  62         // Methods
  63
  64         std::map<int, draw_frame>               operator()(const video_format_desc& format_desc);
  65
  66         std::future<void>                               apply_transforms(const std::vector<transform_tuple_t>& transforms);
  67         std::future<void>                               apply_transform(int index, const transform_func_t& transform, unsigned int mix_duration, const tweener& tween);
  68         std::future<void>                               clear_transforms(int index);
  69         std::future<void>                               clear_transforms();
  70         std::future<frame_transform>    get_current_transform(int index);
  71         std::future<void>                               load(int index, const spl::shared_ptr<frame_producer>& producer, bool preview = false, const boost::optional<int32_t>& auto_play_delta = boost::optional<int32_t>());
  72         std::future<void>                               pause(int index);
  73         std::future<void>                               resume(int index);
  74         std::future<void>                               play(int index);
  75         std::future<void>                               stop(int index);
  76         std::future<std::wstring>               call(int index, const std::vector<std::wstring>& params);
  77         std::future<void>                               clear(int index);
  78         std::future<void>                               clear();
  79         std::future<void>                               swap_layers(stage& other, bool swap_transforms);
  80         std::future<void>                               swap_layer(int index, int other_index, bool swap_transforms);
  81         std::future<void>                               swap_layer(int index, int other_index, stage& other, bool swap_transforms);
  82
  83         void                                                    add_layer_consumer(void* token, int layer, const spl::shared_ptr<write_frame_consumer>& layer_consumer);
  84         void                                                    remove_layer_consumer(void* token, int layer);
  85
  86         monitor::subject& monitor_output();
  87
  88         // frame_observable
  89         //void subscribe(const frame_observable::observer_ptr& o) override;
  90         //void unsubscribe(const frame_observable::observer_ptr& o) override;
  91
  92         // interaction_sink
  93
  94         void on_interaction(const interaction_event::ptr& event) override;
  95
  96         // Properties
  97
  98         std::future<std::shared_ptr<frame_producer>>    foreground(int index);
  99         std::future<std::shared_ptr<frame_producer>>    background(int index);
 100
 101         std::future<boost::property_tree::wptree>               info() const;
 102         std::future<boost::property_tree::wptree>               info(int index) const;
 103
 104         std::future<boost::property_tree::wptree>               delay_info() const;
 105         std::future<boost::property_tree::wptree>               delay_info(int layer) const;
 106 private:
 107         struct impl;
 108         spl::shared_ptr<impl> impl_;
 109 };
 110
 111 }}