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 namespace caspar { namespace image {\r
  42 \r
  43 struct image_producer : public core::frame_producer\r
  44 {       \r
  45         const std::string filename_;\r
  46         safe_ptr<core::basic_frame> frame_;\r
  47         \r
  48         explicit image_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::string& filename) \r
  49                 : filename_(filename)\r
  50                 , frame_(core::basic_frame::empty())    \r
  51         {\r
  52                 auto bitmap = load_image(filename_);\r
  53                 FreeImage_FlipVertical(bitmap.get());\r
  54                 \r
  55                 core::pixel_format_desc desc;\r
  56                 desc.pix_fmt = core::pixel_format::bgra;\r
  57                 desc.planes.push_back(core::pixel_format_desc::plane(FreeImage_GetWidth(bitmap.get()), FreeImage_GetHeight(bitmap.get()), 4));\r
  58                 auto frame = frame_factory->create_frame(this, desc);\r
  59 \r
  60                 std::copy_n(FreeImage_GetBits(bitmap.get()), frame->image_data().size(), frame->image_data().begin());\r
  61                 frame->commit();\r
  62                 frame_ = std::move(frame);\r
  63 \r
  64                 CASPAR_LOG(info) << print() << " Initialized";\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 std::string print() const override\r
  80         {\r
  81                 return "image_producer[" + filename_ + "]";\r
  82         }\r
  83 \r
  84         virtual boost::property_tree::ptree info() const override\r
  85         {\r
  86                 boost::property_tree::ptree info;\r
  87                 info.add("type", "image-producer");\r
  88                 info.add("filename", filename_);\r
  89                 return info;\r
  90         }\r
  91 };\r
  92 \r
  93 safe_ptr<core::frame_producer> create_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::vector<std::string>& params)\r
  94 {\r
  95         static const std::vector<std::string> extensions = boost::assign::list_of("png")("tga")("bmp")("jpg")("jpeg")("gif")("tiff")("tif")("jp2")("jpx")("j2k")("j2c");\r
  96         std::string filename = env::media_folder() + "\\" + params[0];\r
  97         \r
  98         auto ext = std::find_if(extensions.begin(), extensions.end(), [&](const std::string& ex) -> bool\r
  99                 {                                       \r
 100                         return boost::filesystem::is_regular_file(boost::filesystem::path(filename).replace_extension(ex));\r
 101                 });\r
 102 \r
 103         if(ext == extensions.end())\r
 104                 return core::frame_producer::empty();\r
 105 \r
 106         return make_safe<image_producer>(frame_factory, filename + "." + *ext);\r
 107 }\r
 108 \r
 109 \r
 110 }}