git.sesse.net Git - casparcg/blob - modules/image/consumer/image_consumer.cpp

   1 /*
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
   3 *
   4 * This file is part of CasparCG (www.casparcg.com).
   5 *
   6 * CasparCG is free software: you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License as published by
   8 * the Free Software Foundation, either version 3 of the License, or
   9 * (at your option) any later version.
  10 *
  11 * CasparCG is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
  18 *
  19 * Author: Robert Nagy, ronag89@gmail.com
  20 */
  21
  22 #include "image_consumer.h"
  23
  24 #include <common/except.h>
  25 #include <common/env.h>
  26 #include <common/log.h>
  27 #include <common/utf.h>
  28 #include <common/array.h>
  29 #include <common/future.h>
  30
  31 #include <core/consumer/frame_consumer.h>
  32 #include <core/video_format.h>
  33 #include <core/frame/frame.h>
  34
  35 #include <boost/date_time/posix_time/posix_time.hpp>
  36 #include <boost/thread.hpp>
  37
  38 #include <tbb/concurrent_queue.h>
  39
  40 #include <asmlib.h>
  41
  42 #include <FreeImage.h>
  43
  44 #include <vector>
  45 #include <algorithm>
  46
  47 #include "../util/image_view.h"
  48
  49 namespace caspar { namespace image {
  50
  51         void write_cropped_png(
  52                 const core::const_frame& frame,
  53                 const core::video_format_desc& format_desc,
  54                 const boost::filesystem::wpath& output_file,
  55                 int width,
  56                 int height)
  57         {
  58                 auto bitmap = std::shared_ptr<FIBITMAP>(FreeImage_Allocate(width, height, 32), FreeImage_Unload);
  59                 image_view<bgra_pixel> destination_view(FreeImage_GetBits(bitmap.get()), width, height);
  60                 image_view<bgra_pixel> complete_frame(const_cast<uint8_t*>(frame.image_data().begin()), format_desc.width, format_desc.height);
  61                 auto thumbnail_view = complete_frame.subview(0, 0, width, height);
  62
  63                 std::copy(thumbnail_view.begin(), thumbnail_view.end(), destination_view.begin());
  64                 FreeImage_FlipVertical(bitmap.get());
  65                 FreeImage_SaveU(FIF_PNG, bitmap.get(), output_file.wstring().c_str(), 0);
  66         }
  67
  68 struct image_consumer : public core::frame_consumer
  69 {
  70         core::monitor::subject  monitor_subject_;
  71         std::wstring                    filename_;
  72 public:
  73
  74         // frame_consumer
  75
  76         image_consumer(const std::wstring& filename)
  77                 : filename_(filename)
  78         {
  79         }
  80
  81         void initialize(const core::video_format_desc&, int) override
  82         {
  83         }
  84
  85         boost::unique_future<bool> send(core::const_frame frame) override
  86         {
  87                 auto filename = filename_;
  88
  89                 boost::thread async([frame, filename]
  90                 {
  91                         try
  92                         {
  93                                 auto filename2 = filename;
  94
  95                                 if (filename2.empty())
  96                                         filename2 = env::media_folder() +  boost::posix_time::to_iso_wstring(boost::posix_time::second_clock::local_time()) + L".png";
  97                                 else
  98                                         filename2 = env::media_folder() + filename2 + L".png";
  99
 100                                 auto bitmap = std::shared_ptr<FIBITMAP>(FreeImage_Allocate(static_cast<int>(frame.width()), static_cast<int>(frame.height()), 32), FreeImage_Unload);
 101                                 A_memcpy(FreeImage_GetBits(bitmap.get()), frame.image_data().begin(), frame.image_data().size());
 102                                 FreeImage_FlipVertical(bitmap.get());
 103                                 FreeImage_SaveU(FIF_PNG, bitmap.get(), filename2.c_str(), 0);
 104                         }
 105                         catch(...)
 106                         {
 107                                 CASPAR_LOG_CURRENT_EXCEPTION();
 108                         }
 109                 });
 110                 async.detach();
 111
 112                 return wrap_as_future(false);
 113         }
 114
 115         std::wstring print() const override
 116         {
 117                 return L"image[]";
 118         }
 119
 120         std::wstring name() const override
 121         {
 122                 return L"image";
 123         }
 124
 125         boost::property_tree::wptree info() const override
 126         {
 127                 boost::property_tree::wptree info;
 128                 info.add(L"type", L"image");
 129                 return info;
 130         }
 131
 132         int buffer_depth() const override
 133         {
 134                 return 0;
 135         }
 136
 137         int index() const override
 138         {
 139                 return 100;
 140         }
 141
 142         core::monitor::subject& monitor_output()
 143         {
 144                 return monitor_subject_;
 145         }
 146 };
 147
 148 spl::shared_ptr<core::frame_consumer> create_consumer(const std::vector<std::wstring>& params)
 149 {
 150         if (params.size() < 1 || params[0] != L"IMAGE")
 151                 return core::frame_consumer::empty();
 152
 153         std::wstring filename;
 154
 155         if (params.size() > 1)
 156                 filename = params[1];
 157
 158         return spl::make_shared<image_consumer>(filename);
 159 }
 160
 161 }}