git.sesse.net Git - casparcg/blob - modules/image/producer/image_producer.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 "image_producer.h"\r
  21 \r
  22 #include "../util/image_loader.h"\r
  23 \r
  24 #include <core/video_format.h>\r
  25 \r
  26 #include <core/producer/frame/basic_frame.h>\r
  27 #include <core/producer/frame/frame_factory.h>\r
  28 #include <core/mixer/write_frame.h>\r
  29 \r
  30 #include <common/env.h>\r
  31 \r
  32 #include <boost/assign.hpp>\r
  33 #include <boost/filesystem.hpp>\r
  34 \r
  35 #include <algorithm>\r
  36 \r
  37 using namespace boost::assign;\r
  38 \r
  39 namespace caspar { namespace image {\r
  40 \r
  41 struct image_producer : public core::frame_producer\r
  42 {       \r
  43         const std::wstring filename_;\r
  44         safe_ptr<core::basic_frame> frame_;\r
  45         \r
  46         explicit image_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::wstring& filename) \r
  47                 : filename_(filename)\r
  48                 , frame_(core::basic_frame::empty())    \r
  49         {\r
  50                 auto bitmap = load_image(filename_);\r
  51                 FreeImage_FlipVertical(bitmap.get());\r
  52                 auto frame = frame_factory->create_frame(this, FreeImage_GetWidth(bitmap.get()), FreeImage_GetHeight(bitmap.get()), core::pixel_format::bgra);\r
  53                 std::copy_n(FreeImage_GetBits(bitmap.get()), frame->image_data().size(), frame->image_data().begin());\r
  54                 frame->commit();\r
  55                 frame_ = std::move(frame);\r
  56         }\r
  57         \r
  58         // frame_producer\r
  59 \r
  60         virtual safe_ptr<core::basic_frame> receive(int){return frame_;}\r
  61                 \r
  62         virtual safe_ptr<core::basic_frame> last_frame() const\r
  63         {\r
  64                 return frame_;\r
  65         }\r
  66 \r
  67         virtual std::wstring print() const\r
  68         {\r
  69                 return L"image_producer[" + filename_ + L"]";\r
  70         }\r
  71 };\r
  72 \r
  73 safe_ptr<core::frame_producer> create_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::vector<std::wstring>& params)\r
  74 {\r
  75         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
  76         std::wstring filename = env::media_folder() + L"\\" + params[0];\r
  77         \r
  78         auto ext = std::find_if(extensions.begin(), extensions.end(), [&](const std::wstring& ex) -> bool\r
  79                 {                                       \r
  80                         return boost::filesystem::is_regular_file(boost::filesystem::wpath(filename).replace_extension(ex));\r
  81                 });\r
  82 \r
  83         if(ext == extensions.end())\r
  84                 return core::frame_producer::empty();\r
  85 \r
  86         return make_safe<image_producer>(frame_factory, filename + L"." + *ext);\r
  87 }\r
  88 \r
  89 \r
  90 }}