]> git.sesse.net Git - casparcg/blob - core/mixer/read_frame.cpp
2.0.0.2: Improved int type size safety.
[casparcg] / core / mixer / read_frame.cpp
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 #include "../stdafx.h"\r
21 \r
22 #include "read_frame.h"\r
23 \r
24 #include <common/gl/gl_check.h>\r
25 \r
26 namespace caspar { namespace core {\r
27                                                                                                                                                                                                                                                                                                                         \r
28 struct read_frame::implementation : boost::noncopyable\r
29 {\r
30         boost::unique_future<safe_ptr<const host_buffer>> image_data_;\r
31         std::vector<int16_t> audio_data_;\r
32 \r
33 public:\r
34         implementation(boost::unique_future<safe_ptr<const host_buffer>>&& image_data, std::vector<int16_t>&& audio_data) \r
35                 : image_data_(std::move(image_data))\r
36                 , audio_data_(std::move(audio_data)){}  \r
37 };\r
38 \r
39 read_frame::read_frame(boost::unique_future<safe_ptr<const host_buffer>>&& image_data, std::vector<int16_t>&& audio_data) \r
40         : impl_(new implementation(std::move(image_data), std::move(audio_data))){}\r
41 read_frame::read_frame(safe_ptr<const host_buffer>&& image_data, std::vector<int16_t>&& audio_data) \r
42 {\r
43         boost::promise<safe_ptr<const host_buffer>> p;\r
44         p.set_value(std::move(image_data));\r
45         impl_.reset(new implementation(std::move(p.get_future()), std::move(audio_data)));\r
46 }\r
47 \r
48 const boost::iterator_range<const uint8_t*> read_frame::image_data() const\r
49 {\r
50         try\r
51         {\r
52                 if(!impl_->image_data_.get()->data())\r
53                         return boost::iterator_range<const uint8_t*>();\r
54                 auto ptr = static_cast<const uint8_t*>(impl_->image_data_.get()->data());\r
55                 return boost::iterator_range<const uint8_t*>(ptr, ptr + impl_->image_data_.get()->size());\r
56         }\r
57         catch(...) // image_data_ future might store exception.\r
58         {\r
59                 CASPAR_LOG_CURRENT_EXCEPTION();\r
60                 return boost::iterator_range<const uint8_t*>();\r
61         }\r
62 }\r
63 const boost::iterator_range<const int16_t*> read_frame::audio_data() const\r
64 {\r
65         return boost::iterator_range<const int16_t*>(impl_->audio_data_.data(), impl_->audio_data_.data() + impl_->audio_data_.size());\r
66 }\r
67 \r
68 }}