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2.0.2: Refactoring. AMCP commands now executed asynchronously when possible, which...
[casparcg] / core / producer / layer.h
1 /*\r
2 * copyright (c) 2010 Sveriges Television AB <info@casparcg.com>\r
3 *\r
4 *  This file is part of CasparCG.\r
5 *\r
6 *    CasparCG is free software: you can redistribute it and/or modify\r
7 *    it under the terms of the GNU General Public License as published by\r
8 *    the Free Software Foundation, either version 3 of the License, or\r
9 *    (at your option) any later version.\r
10 *\r
11 *    CasparCG is distributed in the hope that it will be useful,\r
12 *    but WITHOUT ANY WARRANTY; without even the implied warranty of\r
13 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
14 *    GNU General Public License for more details.\r
15 \r
16 *    You should have received a copy of the GNU General Public License\r
17 *    along with CasparCG.  If not, see <http://www.gnu.org/licenses/>.\r
18 *\r
19 */\r
20 \r
21 #pragma once\r
22 \r
23 #include <common/memory/safe_ptr.h>\r
24 \r
25 #include <boost/noncopyable.hpp>\r
26 #include <boost/thread/future.hpp>\r
27 \r
28 #include <string>\r
29 \r
30 namespace caspar { namespace core {\r
31 \r
32 struct frame_producer;\r
33 class basic_frame;\r
34 \r
35 struct layer_status\r
36 {\r
37         std::wstring    foreground;\r
38         std::wstring    background;\r
39         bool                    is_paused;\r
40         int64_t                 nb_frames;\r
41         int64_t                 frame_number;\r
42         int64_t                 file_nb_frames;\r
43         int64_t                 file_frame_number;\r
44 };\r
45 \r
46 class layer : boost::noncopyable\r
47 {\r
48 public:\r
49         layer(); // nothrow\r
50         layer(layer&& other); // nothrow\r
51         layer& operator=(layer&& other); // nothrow\r
52         layer(const layer&);\r
53         layer& operator=(const layer&);\r
54 \r
55         void swap(layer& other); // nothrow \r
56                 \r
57         void load(const safe_ptr<frame_producer>& producer, bool preview, int auto_play_delta); // nothrow\r
58         void play(); // nothrow\r
59         void pause(); // nothrow\r
60         void stop(); // nothrow\r
61         boost::unique_future<std::wstring> call(bool foreground, const std::wstring& param);\r
62 \r
63         bool is_paused() const;\r
64         int64_t frame_number() const;\r
65 \r
66         layer_status status() const;\r
67 \r
68         bool empty() const;\r
69 \r
70         safe_ptr<frame_producer> foreground() const; // nothrow\r
71         safe_ptr<frame_producer> background() const; // nothrow\r
72 \r
73         safe_ptr<basic_frame> receive(); // nothrow\r
74 private:\r
75         struct implementation;\r
76         safe_ptr<implementation> impl_;\r
77 };\r
78 \r
79 }}