git.sesse.net Git - casparcg/blob - modules/image/producer/image_producer.cpp

   1 /*\r
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>\r
   3 *\r
   4 * This file is part of CasparCG (www.casparcg.com).\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 * Author: Robert Nagy, ronag89@gmail.com\r
  20 */\r
  21 \r
  22 #include "image_producer.h"\r
  23 \r
  24 #include "../util/image_loader.h"\r
  25 \r
  26 #include <core/video_format.h>\r
  27 \r
  28 #include <core/producer/frame/basic_frame.h>\r
  29 #include <core/producer/frame/frame_factory.h>\r
  30 #include <core/mixer/write_frame.h>\r
  31 \r
  32 #include <common/env.h>\r
  33 #include <common/log/log.h>\r
  34 \r
  35 #include <boost/assign.hpp>\r
  36 #include <boost/filesystem.hpp>\r
  37 #include <boost/property_tree/ptree.hpp>\r
  38 \r
  39 #include <algorithm>\r
  40 \r
  41 using namespace boost::assign;\r
  42 \r
  43 namespace caspar { namespace image {\r
  44 \r
  45 struct image_producer : public core::frame_producer\r
  46 {       \r
  47         const std::wstring filename_;\r
  48         safe_ptr<core::basic_frame> frame_;\r
  49         \r
  50         explicit image_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::wstring& filename) \r
  51                 : filename_(filename)\r
  52                 , frame_(core::basic_frame::empty())    \r
  53         {\r
  54                 auto bitmap = load_image(filename_);\r
  55                 FreeImage_FlipVertical(bitmap.get());\r
  56 \r
  57                 core::pixel_format_desc desc;\r
  58                 desc.pix_fmt = core::pixel_format::bgra;\r
  59                 desc.planes.push_back(core::pixel_format_desc::plane(FreeImage_GetWidth(bitmap.get()), FreeImage_GetHeight(bitmap.get()), 4));\r
  60                 auto frame = frame_factory->create_frame(this, desc);\r
  61 \r
  62                 std::copy_n(FreeImage_GetBits(bitmap.get()), frame->image_data().size(), frame->image_data().begin());\r
  63                 frame->commit();\r
  64                 frame_ = std::move(frame);\r
  65         }\r
  66         \r
  67         // frame_producer\r
  68 \r
  69         virtual safe_ptr<core::basic_frame> receive(int) override\r
  70         {\r
  71                 return frame_;\r
  72         }\r
  73                 \r
  74         virtual safe_ptr<core::basic_frame> last_frame() const override\r
  75         {\r
  76                 return frame_;\r
  77         }\r
  78 \r
  79         virtual safe_ptr<core::basic_frame> create_thumbnail_frame() override\r
  80         {\r
  81                 return frame_;\r
  82         }\r
  83                 \r
  84         virtual std::wstring print() const override\r
  85         {\r
  86                 return L"image_producer[" + filename_ + L"]";\r
  87         }\r
  88 \r
  89         virtual boost::property_tree::wptree info() const override\r
  90         {\r
  91                 boost::property_tree::wptree info;\r
  92                 info.add(L"type", L"image-producer");\r
  93                 info.add(L"filename", filename_);\r
  94                 return info;\r
  95         }\r
  96 };\r
  97 \r
  98 safe_ptr<core::frame_producer> create_raw_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::vector<std::wstring>& params)\r
  99 {\r
 100         static const std::vector<std::wstring> extensions = list_of(L"png")(L"tga")(L"bmp")(L"jpg")(L"jpeg")(L"gif")(L"tiff")(L"tif")(L"jp2")(L"jpx")(L"j2k")(L"j2c");\r
 101         std::wstring filename = env::media_folder() + L"\\" + params[0];\r
 102         \r
 103         auto ext = std::find_if(extensions.begin(), extensions.end(), [&](const std::wstring& ex) -> bool\r
 104                 {                                       \r
 105                         return boost::filesystem::is_regular_file(boost::filesystem::wpath(filename).replace_extension(ex));\r
 106                 });\r
 107 \r
 108         if(ext == extensions.end())\r
 109                 return core::frame_producer::empty();\r
 110 \r
 111         return make_safe<image_producer>(frame_factory, filename + L"." + *ext);\r
 112 }\r
 113 \r
 114 safe_ptr<core::frame_producer> create_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::vector<std::wstring>& params)\r
 115 {\r
 116         auto raw_producer = create_raw_producer(frame_factory, params);\r
 117 \r
 118         if (raw_producer == core::frame_producer::empty())\r
 119                 return raw_producer;\r
 120 \r
 121         return create_producer_print_proxy(raw_producer);\r
 122 }\r
 123 \r
 124 safe_ptr<core::frame_producer> create_thumbnail_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::vector<std::wstring>& params)\r
 125 {\r
 126         return create_raw_producer(frame_factory, params);\r
 127 }\r
 128 \r
 129 }}