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 #include <common/os/filesystem.h>
  41
  42 #include <boost/filesystem.hpp>
  43 #include <boost/property_tree/ptree.hpp>
  44 #include <boost/algorithm/string.hpp>
  45
  46 #include <algorithm>
  47 #include <set>
  48
  49 namespace caspar { namespace image {
  50
  51 std::pair<core::draw_frame, core::constraints> load_image(
  52                 const spl::shared_ptr<core::frame_factory>& frame_factory,
  53                 const std::wstring& filename)
  54 {
  55         auto bitmap = load_image(filename);
  56         FreeImage_FlipVertical(bitmap.get());
  57
  58         core::pixel_format_desc desc = core::pixel_format::bgra;
  59         auto width = FreeImage_GetWidth(bitmap.get());
  60         auto height = FreeImage_GetHeight(bitmap.get());
  61         desc.planes.push_back(core::pixel_format_desc::plane(width, height, 4));
  62         auto frame = frame_factory->create_frame(bitmap.get(), desc);
  63
  64         std::copy_n(
  65                         FreeImage_GetBits(bitmap.get()),
  66                         frame.image_data(0).size(),
  67                         frame.image_data(0).begin());
  68
  69         return std::make_pair(
  70                         core::draw_frame(std::move(frame)),
  71                         core::constraints(width, height));
  72 }
  73
  74 struct image_producer : public core::frame_producer_base
  75 {
  76         core::monitor::subject                                          monitor_subject_;
  77         const std::wstring                                                      description_;
  78         const spl::shared_ptr<core::frame_factory>      frame_factory_;
  79         core::draw_frame                                                        frame_                          = core::draw_frame::empty();
  80         core::constraints                                                       constraints_;
  81
  82         image_producer(const spl::shared_ptr<core::frame_factory>& frame_factory, const std::wstring& description)
  83                 : description_(description)
  84                 , frame_factory_(frame_factory)
  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         {
  95                 load(load_png_from_memory(png_data, size));
  96
  97                 CASPAR_LOG(info) << print() << L" Initialized";
  98         }
  99
 100         void load(const std::shared_ptr<FIBITMAP>& bitmap)
 101         {
 102                 FreeImage_FlipVertical(bitmap.get());
 103                 core::pixel_format_desc desc;
 104                 desc.format = core::pixel_format::bgra;
 105                 desc.planes.push_back(core::pixel_format_desc::plane(FreeImage_GetWidth(bitmap.get()), FreeImage_GetHeight(bitmap.get()), 4));
 106                 auto frame = frame_factory_->create_frame(this, desc);
 107
 108                 std::copy_n(FreeImage_GetBits(bitmap.get()), frame.image_data().size(), frame.image_data().begin());
 109                 frame_ = core::draw_frame(std::move(frame));
 110                 constraints_.width.set(FreeImage_GetWidth(bitmap.get()));
 111                 constraints_.height.set(FreeImage_GetHeight(bitmap.get()));
 112         }
 113
 114         // frame_producer
 115
 116         core::draw_frame receive_impl() override
 117         {
 118                 monitor_subject_ << core::monitor::message("/file/path") % description_;
 119
 120                 return frame_;
 121         }
 122
 123         core::draw_frame create_thumbnail_frame() override
 124         {
 125                 return frame_;
 126         }
 127
 128         core::constraints& pixel_constraints() override
 129         {
 130                 return constraints_;
 131         }
 132
 133         std::wstring print() const override
 134         {
 135                 return L"image_producer[" + description_ + L"]";
 136         }
 137
 138         std::wstring name() const override
 139         {
 140                 return L"image";
 141         }
 142
 143         boost::property_tree::wptree info() const override
 144         {
 145                 boost::property_tree::wptree info;
 146                 info.add(L"type", L"image");
 147                 info.add(L"location", description_);
 148                 return info;
 149         }
 150
 151         core::monitor::subject& monitor_output()
 152         {
 153                 return monitor_subject_;
 154         }
 155 };
 156
 157 class ieq
 158 {
 159         std::wstring test_;
 160 public:
 161         ieq(const std::wstring& test)
 162                 : test_(test)
 163         {
 164         }
 165
 166         bool operator()(const std::wstring& elem) const
 167         {
 168                 return boost::iequals(elem, test_);
 169         }
 170 };
 171
 172 spl::shared_ptr<core::frame_producer> create_producer(const core::frame_producer_dependencies& dependencies, const std::vector<std::wstring>& params)
 173 {
 174         static const auto extensions = {
 175                 L".png",
 176                 L".tga",
 177                 L".bmp",
 178                 L".jpg",
 179                 L".jpeg",
 180                 L".gif",
 181                 L".tiff",
 182                 L".tif",
 183                 L".jp2",
 184                 L".jpx",
 185                 L".j2k",
 186                 L".j2c"
 187         };
 188
 189         if (boost::iequals(params.at(0), L"[IMG_SEQUENCE]"))
 190         {
 191                 if (params.size() != 2)
 192                         return core::frame_producer::empty();
 193
 194                 auto dir = boost::filesystem::path(env::media_folder() + params.at(1)).parent_path();
 195                 auto basename = boost::filesystem::basename(params.at(1));
 196                 std::set<std::wstring> files;
 197                 boost::filesystem::directory_iterator end;
 198
 199                 for (boost::filesystem::directory_iterator it(dir); it != end; ++it)
 200                 {
 201                         auto name = it->path().filename().wstring();
 202
 203                         if (!boost::algorithm::istarts_with(name, basename))
 204                                 continue;
 205
 206                         auto extension = it->path().extension().wstring();
 207
 208                         if (std::find_if(extensions.begin(), extensions.end(), ieq(extension)) == extensions.end())
 209                                 continue;
 210
 211                         files.insert(it->path().wstring());
 212                 }
 213
 214                 if (files.empty())
 215                         return core::frame_producer::empty();
 216
 217                 int width = -1;
 218                 int height = -1;
 219                 std::vector<core::draw_frame> frames;
 220                 frames.reserve(files.size());
 221
 222                 for (auto& file : files)
 223                 {
 224                         auto frame = load_image(dependencies.frame_factory, file);
 225
 226                         if (width == -1)
 227                         {
 228                                 width = static_cast<int>(frame.second.width.get());
 229                                 height = static_cast<int>(frame.second.height.get());
 230                         }
 231
 232                         frames.push_back(std::move(frame.first));
 233                 }
 234
 235                 return core::create_const_producer(std::move(frames), width, height);
 236         }
 237         else if(boost::iequals(params.at(0), L"[PNG_BASE64]"))
 238         {
 239                 if (params.size() < 2)
 240                         return core::frame_producer::empty();
 241
 242                 auto png_data = from_base64(std::string(params.at(1).begin(), params.at(1).end()));
 243
 244                 return spl::make_shared<image_producer>(dependencies.frame_factory, png_data.data(), png_data.size());
 245         }
 246
 247         std::wstring filename = env::media_folder() + params.at(0);
 248
 249         auto ext = std::find_if(extensions.begin(), extensions.end(), [&](const std::wstring& ex) -> bool
 250         {
 251                 auto file = caspar::find_case_insensitive(boost::filesystem::path(filename).replace_extension(ex).wstring());
 252
 253                 return static_cast<bool>(file);
 254         });
 255
 256         if(ext == extensions.end())
 257                 return core::frame_producer::empty();
 258
 259         return spl::make_shared<image_producer>(dependencies.frame_factory, *caspar::find_case_insensitive(filename + *ext));
 260 }
 261
 262
 263 spl::shared_ptr<core::frame_producer> create_thumbnail_producer(const core::frame_producer_dependencies& dependencies, const std::vector<std::wstring>& params)
 264 {
 265         return caspar::image::create_producer(dependencies, params);
 266 }
 267 }}