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

   1 /*\r
   2 * Copyright 2013 Sveriges Television AB http://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/parameters/parameters.h>\r
  29 #include <core/monitor/monitor.h>\r
  30 #include <core/producer/frame/basic_frame.h>\r
  31 #include <core/producer/frame/frame_factory.h>\r
  32 #include <core/mixer/write_frame.h>\r
  33 \r
  34 #include <common/env.h>\r
  35 #include <common/log/log.h>\r
  36 #include <common/utility/base64.h>\r
  37 #include <common/utility/string.h>\r
  38 \r
  39 #include <boost/assign.hpp>\r
  40 #include <boost/filesystem.hpp>\r
  41 #include <boost/property_tree/ptree.hpp>\r
  42 \r
  43 #include <algorithm>\r
  44 \r
  45 using namespace boost::assign;\r
  46 \r
  47 namespace caspar { namespace image {\r
  48 \r
  49 struct image_producer : public core::frame_producer\r
  50 {       \r
  51         const std::wstring description_;\r
  52         core::monitor::subject          monitor_subject_;\r
  53         const safe_ptr<core::frame_factory> frame_factory_;     safe_ptr<core::basic_frame> frame_;\r
  54         \r
  55         explicit image_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::wstring& filename) \r
  56                 : description_(filename)\r
  57                 , frame_factory_(frame_factory)\r
  58                 , frame_(core::basic_frame::empty())    \r
  59         {\r
  60                 load(load_image(filename));\r
  61         }\r
  62 \r
  63         explicit image_producer(const safe_ptr<core::frame_factory>& frame_factory, const void* png_data, size_t size)\r
  64                 : description_(L"png from memory")\r
  65                 , frame_factory_(frame_factory)\r
  66                 , frame_(core::basic_frame::empty())\r
  67         {\r
  68                 load(load_png_from_memory(png_data, size));\r
  69         }\r
  70 \r
  71         void load(const std::shared_ptr<FIBITMAP>& bitmap)\r
  72         {\r
  73                 FreeImage_FlipVertical(bitmap.get());\r
  74 \r
  75                 core::pixel_format_desc desc;\r
  76                 desc.pix_fmt = core::pixel_format::bgra;\r
  77                 desc.planes.push_back(core::pixel_format_desc::plane(FreeImage_GetWidth(bitmap.get()), FreeImage_GetHeight(bitmap.get()), 4));\r
  78                 auto frame = frame_factory_->create_frame(this, desc);\r
  79 \r
  80                 std::copy_n(FreeImage_GetBits(bitmap.get()), frame->image_data().size(), frame->image_data().begin());\r
  81                 frame->commit();\r
  82                 frame_ = std::move(frame);\r
  83         }\r
  84 \r
  85         // frame_producer\r
  86 \r
  87         virtual safe_ptr<core::basic_frame> receive(int) override\r
  88         {\r
  89                 monitor_subject_ << core::monitor::message("/file/path") % description_;\r
  90 \r
  91                 return frame_;\r
  92         }\r
  93                 \r
  94         virtual safe_ptr<core::basic_frame> last_frame() const override\r
  95         {\r
  96                 return frame_;\r
  97         }\r
  98 \r
  99         virtual safe_ptr<core::basic_frame> create_thumbnail_frame() override\r
 100         {\r
 101                 return frame_;\r
 102         }\r
 103                 \r
 104         virtual std::wstring print() const override\r
 105         {\r
 106                 return L"image_producer[" + description_ + L"]";\r
 107         }\r
 108 \r
 109         virtual boost::property_tree::wptree info() const override\r
 110         {\r
 111                 boost::property_tree::wptree info;\r
 112                 info.add(L"type", L"image-producer");\r
 113                 info.add(L"location", description_);\r
 114                 return info;\r
 115         }\r
 116 \r
 117         core::monitor::subject& monitor_output()\r
 118         {\r
 119                 return monitor_subject_;\r
 120         }\r
 121 };\r
 122 \r
 123 safe_ptr<core::frame_producer> create_raw_producer(\r
 124         const safe_ptr<core::frame_factory>& frame_factory,\r
 125         const core::parameters& params)\r
 126 {\r
 127         if (params[0] == L"[PNG_BASE64]")\r
 128         {\r
 129                 if (params.size() < 2)\r
 130                         return core::frame_producer::empty();\r
 131 \r
 132                 auto png_data = from_base64(narrow(params.at_original(1)));\r
 133 \r
 134                 return make_safe<image_producer>(frame_factory, png_data.data(), png_data.size());\r
 135         }\r
 136 \r
 137         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
 138         std::wstring filename = env::media_folder() + params.at_original(0);\r
 139         \r
 140         auto ext = std::find_if(extensions.begin(), extensions.end(), [&](const std::wstring& ex) -> bool\r
 141                 {                                       \r
 142                         return boost::filesystem::is_regular_file(boost::filesystem::wpath(filename).replace_extension(ex));\r
 143                 });\r
 144 \r
 145         if(ext == extensions.end())\r
 146                 return core::frame_producer::empty();\r
 147 \r
 148         return make_safe<image_producer>(frame_factory, filename + L"." + *ext);\r
 149 }\r
 150 \r
 151 safe_ptr<core::frame_producer> create_producer(\r
 152                 const safe_ptr<core::frame_factory>& frame_factory,\r
 153                 const core::parameters& params)\r
 154 {\r
 155         auto raw_producer = create_raw_producer(frame_factory, params);\r
 156 \r
 157         if (raw_producer == core::frame_producer::empty())\r
 158                 return raw_producer;\r
 159 \r
 160         return create_producer_print_proxy(raw_producer);\r
 161 }\r
 162 \r
 163 safe_ptr<core::frame_producer> create_thumbnail_producer(\r
 164                 const safe_ptr<core::frame_factory>& frame_factory,\r
 165                 const core::parameters& params)\r
 166 {\r
 167         return create_raw_producer(frame_factory, params);\r
 168 }\r
 169 \r
 170 }}