git.sesse.net Git - casparcg/blob - modules/image/producer/image_producer.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_producer.h"
  23
  24 #include "../util/image_loader.h"
  25
  26 #include <core/video_format.h>
  27
  28 #include <core/producer/frame_producer.h>
  29 #include <core/producer/scene/const_producer.h>
  30 #include <core/frame/frame.h>
  31 #include <core/frame/draw_frame.h>
  32 #include <core/frame/frame_factory.h>
  33 #include <core/frame/pixel_format.h>
  34 #include <core/monitor/monitor.h>
  35
  36 #include <common/env.h>
  37 #include <common/log.h>
  38 #include <common/array.h>
  39 #include <common/base64.h>
  40
  41 #include <boost/filesystem.hpp>
  42 #include <boost/property_tree/ptree.hpp>
  43 #include <boost/algorithm/string.hpp>
  44
  45 #include <algorithm>
  46 #include <set>
  47
  48 namespace caspar { namespace image {
  49
  50 std::pair<core::draw_frame, core::constraints> load_image(
  51                 const spl::shared_ptr<core::frame_factory>& frame_factory,
  52                 const std::wstring& filename)
  53 {
  54         auto bitmap = load_image(filename);
  55         FreeImage_FlipVertical(bitmap.get());
  56
  57         core::pixel_format_desc desc = core::pixel_format::bgra;
  58         auto width = FreeImage_GetWidth(bitmap.get());
  59         auto height = FreeImage_GetHeight(bitmap.get());
  60         desc.planes.push_back(core::pixel_format_desc::plane(width, height, 4));
  61         auto frame = frame_factory->create_frame(bitmap.get(), desc);
  62
  63         std::copy_n(
  64                         FreeImage_GetBits(bitmap.get()),
  65                         frame.image_data(0).size(),
  66                         frame.image_data(0).begin());
  67
  68         return std::make_pair(
  69                         core::draw_frame(std::move(frame)),
  70                         core::constraints(width, height));
  71 }
  72
  73 struct image_producer : public core::frame_producer_base
  74 {
  75         core::monitor::subject                                          monitor_subject_;
  76         const std::wstring                                                      description_;
  77         const spl::shared_ptr<core::frame_factory>      frame_factory_;
  78         core::draw_frame                                                        frame_;
  79         core::constraints                                                       constraints_;
  80
  81         image_producer(const spl::shared_ptr<core::frame_factory>& frame_factory, const std::wstring& description)
  82                 : description_(description)
  83                 , frame_factory_(frame_factory)
  84                 , frame_(core::draw_frame::empty())
  85         {
  86                 load(load_image(description_));
  87
  88                 CASPAR_LOG(info) << print() << L" Initialized";
  89         }
  90
  91         image_producer(const spl::shared_ptr<core::frame_factory>& frame_factory, const void* png_data, size_t size)
  92                 : description_(L"png from memory")
  93                 , frame_factory_(frame_factory)
  94                 , frame_(core::draw_frame::empty())
  95         {
  96                 load(load_png_from_memory(png_data, size));
  97
  98                 CASPAR_LOG(info) << print() << L" Initialized";
  99         }
 100
 101         void load(const std::shared_ptr<FIBITMAP>& bitmap)
 102         {
 103                 FreeImage_FlipVertical(bitmap.get());
 104                 core::pixel_format_desc desc;
 105                 desc.format = core::pixel_format::bgra;
 106                 desc.planes.push_back(core::pixel_format_desc::plane(FreeImage_GetWidth(bitmap.get()), FreeImage_GetHeight(bitmap.get()), 4));
 107                 auto frame = frame_factory_->create_frame(this, desc);
 108
 109                 std::copy_n(FreeImage_GetBits(bitmap.get()), frame.image_data().size(), frame.image_data().begin());
 110                 frame_ = core::draw_frame(std::move(frame));
 111                 constraints_.width.set(FreeImage_GetWidth(bitmap.get()));
 112                 constraints_.height.set(FreeImage_GetHeight(bitmap.get()));
 113         }
 114
 115         // frame_producer
 116
 117         core::draw_frame receive_impl() override
 118         {
 119                 monitor_subject_ << core::monitor::message("/file/path") % description_;
 120
 121                 return frame_;
 122         }
 123
 124         core::draw_frame create_thumbnail_frame() override
 125         {
 126                 return frame_;
 127         }
 128
 129         core::constraints& pixel_constraints() override
 130         {
 131                 return constraints_;
 132         }
 133
 134         std::wstring print() const override
 135         {
 136                 return L"image_producer[" + description_ + L"]";
 137         }
 138
 139         std::wstring name() const override
 140         {
 141                 return L"image";
 142         }
 143
 144         boost::property_tree::wptree info() const override
 145         {
 146                 boost::property_tree::wptree info;
 147                 info.add(L"type", L"image");
 148                 info.add(L"location", description_);
 149                 return info;
 150         }
 151
 152         core::monitor::subject& monitor_output()
 153         {
 154                 return monitor_subject_;
 155         }
 156 };
 157
 158 class ieq
 159 {
 160         std::wstring test_;
 161 public:
 162         ieq(const std::wstring& test)
 163                 : test_(test)
 164         {
 165         }
 166
 167         bool operator()(const std::wstring& elem) const
 168         {
 169                 return boost::iequals(elem, test_);
 170         }
 171 };
 172
 173 spl::shared_ptr<core::frame_producer> create_producer(const spl::shared_ptr<core::frame_factory>& frame_factory, const core::video_format_desc& format_desc, const std::vector<std::wstring>& params)
 174 {
 175         static const auto extensions = {
 176                 L".png",
 177                 L".tga",
 178                 L".bmp",
 179                 L".jpg",
 180                 L".jpeg",
 181                 L".gif",
 182                 L".tiff",
 183                 L".tif",
 184                 L".jp2",
 185                 L".jpx",
 186                 L".j2k",
 187                 L".j2c"
 188         };
 189
 190         if (boost::iequals(params[0], L"[IMG_SEQUENCE]"))
 191         {
 192                 if (params.size() != 2)
 193                         return core::frame_producer::empty();
 194
 195                 auto dir = boost::filesystem::path(env::media_folder() + params[1]).parent_path();
 196                 auto basename = boost::filesystem::basename(params[1]);
 197                 std::set<std::wstring> files;
 198                 boost::filesystem::directory_iterator end;
 199
 200                 for (boost::filesystem::directory_iterator it(dir); it != end; ++it)
 201                 {
 202                         auto name = it->path().filename().wstring();
 203
 204                         if (!boost::algorithm::istarts_with(name, basename))
 205                                 continue;
 206
 207                         auto extension = it->path().extension().wstring();
 208
 209                         if (std::find_if(extensions.begin(), extensions.end(), ieq(extension)) == extensions.end())
 210                                 continue;
 211
 212                         files.insert(it->path().wstring());
 213                 }
 214
 215                 if (files.empty())
 216                         return core::frame_producer::empty();
 217
 218                 int width = -1;
 219                 int height = -1;
 220                 std::vector<core::draw_frame> frames;
 221                 frames.reserve(files.size());
 222
 223                 for (auto& file : files)
 224                 {
 225                         auto frame = load_image(frame_factory, file);
 226
 227                         if (width == -1)
 228                         {
 229                                 width = static_cast<int>(frame.second.width.get());
 230                                 height = static_cast<int>(frame.second.height.get());
 231                         }
 232
 233                         frames.push_back(std::move(frame.first));
 234                 }
 235
 236                 return core::create_const_producer(std::move(frames), width, height);
 237         }
 238         else if(boost::iequals(params[0], L"[PNG_BASE64]"))
 239         {
 240                 if (params.size() < 2)
 241                         return core::frame_producer::empty();
 242
 243                 auto png_data = from_base64(std::string(params[1].begin(), params[1].end()));
 244
 245                 return spl::make_shared<image_producer>(frame_factory, png_data.data(), png_data.size());
 246         }
 247
 248         std::wstring filename = env::media_folder() + params[0];
 249
 250         auto ext = std::find_if(extensions.begin(), extensions.end(), [&](const std::wstring& ex) -> bool
 251                 {
 252                         return boost::filesystem::is_regular_file(boost::filesystem::path(filename).replace_extension(ex));
 253                 });
 254
 255         if(ext == extensions.end())
 256                 return core::frame_producer::empty();
 257
 258         return spl::make_shared<image_producer>(frame_factory, filename + *ext);
 259 }
 260
 261
 262 spl::shared_ptr<core::frame_producer> create_thumbnail_producer(const spl::shared_ptr<core::frame_factory>& frame_factory, const core::video_format_desc& format_desc, const std::vector<std::wstring>& params)
 263 {
 264         return caspar::image::create_producer(frame_factory, format_desc, params);
 265 }
 266 }}