git.sesse.net Git - casparcg/blob - modules/image/consumer/image_consumer.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_consumer.h"\r
  23 \r
  24 #include <common/exception/win32_exception.h>\r
  25 #include <common/exception/exceptions.h>\r
  26 #include <common/env.h>\r
  27 #include <common/log/log.h>\r
  28 #include <common/utility/string.h>\r
  29 #include <common/concurrency/future_util.h>\r
  30 \r
  31 #include <core/parameters/parameters.h>\r
  32 #include <core/consumer/frame_consumer.h>\r
  33 #include <core/video_format.h>\r
  34 #include <core/mixer/read_frame.h>\r
  35 \r
  36 #include <boost/date_time/posix_time/posix_time.hpp>\r
  37 #include <boost/thread.hpp>\r
  38 \r
  39 #include <FreeImage.h>\r
  40 #include <vector>\r
  41 #include <algorithm>\r
  42 \r
  43 #include "../util/image_view.h"\r
  44 \r
  45 namespace caspar { namespace image {\r
  46 \r
  47 void write_cropped_png(\r
  48                 const safe_ptr<core::read_frame>& frame,\r
  49                 const core::video_format_desc& format_desc,\r
  50                 const boost::filesystem::wpath& output_file,\r
  51                 int width,\r
  52                 int height)\r
  53 {\r
  54         auto bitmap = std::shared_ptr<FIBITMAP>(FreeImage_Allocate(width, height, 32), FreeImage_Unload);\r
  55         image_view<bgra_pixel> destination_view(FreeImage_GetBits(bitmap.get()), width, height);\r
  56         image_view<bgra_pixel> complete_frame(const_cast<uint8_t*>(frame->image_data().begin()), format_desc.width, format_desc.height);\r
  57         auto thumbnail_view = complete_frame.subview(0, 0, width, height);\r
  58 \r
  59         std::copy(thumbnail_view.begin(), thumbnail_view.end(), destination_view.begin());\r
  60         FreeImage_FlipVertical(bitmap.get());\r
  61         FreeImage_SaveU(FIF_PNG, bitmap.get(), output_file.string().c_str(), 0);\r
  62 }\r
  63 \r
  64 struct image_consumer : public core::frame_consumer\r
  65 {\r
  66         core::video_format_desc format_desc_;\r
  67         std::wstring                    filename_;\r
  68 public:\r
  69 \r
  70         // frame_consumer\r
  71 \r
  72         image_consumer(const std::wstring& filename)\r
  73                 : filename_(filename)\r
  74         {\r
  75         }\r
  76 \r
  77         virtual void initialize(const core::video_format_desc& format_desc, int) override\r
  78         {\r
  79                 format_desc_ = format_desc;\r
  80         }\r
  81 \r
  82         virtual int64_t presentation_frame_age_millis() const override\r
  83         {\r
  84                 return 0;\r
  85         }\r
  86         \r
  87         virtual boost::unique_future<bool> send(const safe_ptr<core::read_frame>& frame) override\r
  88         {                               \r
  89                 auto format_desc = format_desc_;\r
  90                 auto filename = filename_;\r
  91 \r
  92                 boost::thread async([format_desc, frame, filename]\r
  93                 {\r
  94                         win32_exception::ensure_handler_installed_for_thread("image-consumer-thread");\r
  95 \r
  96                         try\r
  97                         {\r
  98                                 auto filename2 = filename;\r
  99 \r
 100                                 if (filename2.empty())\r
 101                                         filename2 = env::media_folder() + widen(boost::posix_time::to_iso_string(boost::posix_time::second_clock::local_time())) + L".png";\r
 102                                 else\r
 103                                         filename2 = env::media_folder() + filename2 + L".png";\r
 104 \r
 105                                 auto bitmap = std::shared_ptr<FIBITMAP>(FreeImage_Allocate(format_desc.width, format_desc.height, 32), FreeImage_Unload);\r
 106                                 memcpy(FreeImage_GetBits(bitmap.get()), frame->image_data().begin(), frame->image_size());\r
 107                                 FreeImage_FlipVertical(bitmap.get());\r
 108                                 FreeImage_SaveU(FIF_PNG, bitmap.get(), filename2.c_str(), 0);\r
 109                         }\r
 110                         catch(...)\r
 111                         {\r
 112                                 CASPAR_LOG_CURRENT_EXCEPTION();\r
 113                         }\r
 114                 });\r
 115                 async.detach();\r
 116 \r
 117                 return wrap_as_future(false);\r
 118         }\r
 119 \r
 120         virtual std::wstring print() const override\r
 121         {\r
 122                 return L"image[]";\r
 123         }\r
 124 \r
 125         virtual boost::property_tree::wptree info() const override\r
 126         {\r
 127                 boost::property_tree::wptree info;\r
 128                 info.add(L"type", L"image-consumer");\r
 129                 return info;\r
 130         }\r
 131 \r
 132         virtual size_t buffer_depth() const override\r
 133         {\r
 134                 return 0;\r
 135         }\r
 136 \r
 137         virtual int index() const override\r
 138         {\r
 139                 return 100;\r
 140         }\r
 141 };\r
 142 \r
 143 safe_ptr<core::frame_consumer> create_consumer(const core::parameters& params)\r
 144 {\r
 145         if(params.size() < 1 || params.at(0) != L"IMAGE")\r
 146                 return core::frame_consumer::empty();\r
 147 \r
 148         std::wstring filename;\r
 149 \r
 150         if (params.size() > 1)\r
 151                 filename = params.at(1);\r
 152 \r
 153         return make_safe<image_consumer>(filename);\r
 154 }\r
 155 \r
 156 }}\r