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

   1 #include "image_producer.h"\r
   2 \r
   3 #include "../util/image_loader.h"\r
   4 \r
   5 #include <core/video_format.h>\r
   6 \r
   7 #include <core/producer/frame/basic_frame.h>\r
   8 #include <core/producer/frame/write_frame.h>\r
   9 \r
  10 #include <common/env.h>\r
  11 \r
  12 #include <boost/assign.hpp>\r
  13 #include <boost/filesystem.hpp>\r
  14 \r
  15 #include <algorithm>\r
  16 \r
  17 using namespace boost::assign;\r
  18 \r
  19 namespace caspar {\r
  20 \r
  21 struct image_producer : public core::frame_producer\r
  22 {       \r
  23         std::shared_ptr<core::frame_factory> frame_factory_;\r
  24         std::wstring filename_;\r
  25         safe_ptr<core::basic_frame> frame_;\r
  26         decltype(load_image(L"")) bitmap_;\r
  27         \r
  28         explicit image_producer(const std::wstring& filename) \r
  29                 : filename_(filename)\r
  30                 , frame_(core::basic_frame::empty())    \r
  31                 , bitmap_(load_image(filename_))\r
  32         {\r
  33                 FreeImage_FlipVertical(bitmap_.get());\r
  34         }\r
  35         \r
  36         virtual safe_ptr<core::basic_frame> receive(){return frame_;}\r
  37 \r
  38         virtual void set_frame_factory(const safe_ptr<core::frame_factory>& frame_factory)\r
  39         {\r
  40                 frame_factory_ = frame_factory;\r
  41                 auto frame = frame_factory->create_frame(FreeImage_GetWidth(bitmap_.get()), FreeImage_GetHeight(bitmap_.get()));\r
  42                 std::copy_n(FreeImage_GetBits(bitmap_.get()), frame->image_data().size(), frame->image_data().begin());\r
  43                 bitmap_.reset();\r
  44                 frame_ = std::move(frame);\r
  45         }\r
  46         \r
  47         virtual std::wstring print() const\r
  48         {\r
  49                 return L"image_producer[" + filename_ + L"]";\r
  50         }\r
  51 };\r
  52 \r
  53 safe_ptr<core::frame_producer> create_image_producer(const std::vector<std::wstring>& params)\r
  54 {\r
  55         static const std::vector<std::wstring> extensions = list_of(L"png")(L"tga")(L"bmp")(L"jpg")(L"jpeg");\r
  56         std::wstring filename = env::media_folder() + L"\\" + params[0];\r
  57         \r
  58         auto ext = std::find_if(extensions.begin(), extensions.end(), [&](const std::wstring& ex) -> bool\r
  59                 {                                       \r
  60                         return boost::filesystem::is_regular_file(boost::filesystem::wpath(filename).replace_extension(ex));\r
  61                 });\r
  62 \r
  63         if(ext == extensions.end())\r
  64                 return core::frame_producer::empty();\r
  65 \r
  66         return make_safe<image_producer>(filename + L"." + *ext);\r
  67 }\r
  68 \r
  69 \r
  70 }