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 "frame_producer.h"
  25
  26 #include "../monitor/monitor.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 sealed : public monitor::observable, public frame_observable
  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(spl::shared_ptr<diagnostics::graph> graph);
  61
  62         // Methods
  63
  64         std::map<int, class draw_frame> operator()(const struct video_format_desc& format_desc);
  65
  66         boost::unique_future<void>                      apply_transforms(const std::vector<transform_tuple_t>& transforms);
  67         boost::unique_future<void>                      apply_transform(int index, const transform_func_t& transform, unsigned int mix_duration = 0, const tweener& tween = L"linear");
  68         boost::unique_future<void>                      clear_transforms(int index);
  69         boost::unique_future<void>                      clear_transforms();
  70         boost::unique_future<void>                      load(int index, const spl::shared_ptr<class frame_producer>& producer, bool preview = false, const boost::optional<int32_t>& auto_play_delta = nullptr);
  71         boost::unique_future<void>                      pause(int index);
  72         boost::unique_future<void>                      play(int index);
  73         boost::unique_future<void>                      stop(int index);
  74         boost::unique_future<std::wstring>      call(int index, const std::wstring& params);
  75         boost::unique_future<void>                      clear(int index);
  76         boost::unique_future<void>                      clear();
  77         boost::unique_future<void>                      swap_layers(stage& other);
  78         boost::unique_future<void>                      swap_layer(int index, int other_index);
  79         boost::unique_future<void>                      swap_layer(int index, int other_index, stage& other);
  80
  81         // monitor::observable
  82
  83         void subscribe(const monitor::observable::observer_ptr& o) override;
  84         void unsubscribe(const monitor::observable::observer_ptr& o) override;
  85
  86         // frame_observable
  87
  88         void subscribe(const frame_observable::observer_ptr& o) override;
  89         void unsubscribe(const frame_observable::observer_ptr& o) override;
  90
  91         // Properties
  92
  93         boost::unique_future<spl::shared_ptr<class frame_producer>>     foreground(int index);
  94         boost::unique_future<spl::shared_ptr<class frame_producer>>     background(int index);
  95
  96         boost::unique_future<boost::property_tree::wptree>                      info() const;
  97         boost::unique_future<boost::property_tree::wptree>                      info(int index) const;
  98
  99 private:
 100         struct impl;
 101         spl::shared_ptr<impl> impl_;
 102 };
 103
 104 }}