2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
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4 * This file is part of CasparCG (www.casparcg.com).
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6 * CasparCG is free software: you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation, either version 3 of the License, or
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9 * (at your option) any later version.
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11 * CasparCG is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU General Public License for more details.
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16 * You should have received a copy of the GNU General Public License
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17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
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19 * Author: Robert Nagy, ronag89@gmail.com
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22 #include "image_scroll_producer.h"
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24 #include "../util/image_loader.h"
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26 #include <core/video_format.h>
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28 #include <core/frame/draw_frame.h>
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29 #include <core/frame/frame_factory.h>
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30 #include <core/frame/frame_transform.h>
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31 #include <core/frame/pixel_format.h>
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32 #include <core/frame/write_frame.h>
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34 #include <common/env.h>
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35 #include <common/log.h>
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36 #include <common/except.h>
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38 #include <boost/assign.hpp>
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39 #include <boost/filesystem.hpp>
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40 #include <boost/foreach.hpp>
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41 #include <boost/lexical_cast.hpp>
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42 #include <boost/property_tree/ptree.hpp>
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44 #include <algorithm>
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47 using namespace boost::assign;
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49 namespace caspar { namespace image {
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51 struct image_scroll_producer : public core::frame_producer
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53 const std::wstring filename_;
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54 std::vector<spl::shared_ptr<core::draw_frame>> frames_;
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55 core::video_format_desc format_desc_;
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62 std::array<double, 2> start_offset_;
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64 spl::shared_ptr<core::draw_frame> last_frame_;
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66 explicit image_scroll_producer(const spl::shared_ptr<core::frame_factory>& frame_factory, const std::wstring& filename, int speed)
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67 : filename_(filename)
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69 , format_desc_(frame_factory->video_format_desc())
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71 , last_frame_(core::draw_frame::empty())
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73 start_offset_.assign(0.0);
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75 auto bitmap = load_image(filename_);
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76 FreeImage_FlipVertical(bitmap.get());
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78 width_ = FreeImage_GetWidth(bitmap.get());
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79 height_ = FreeImage_GetHeight(bitmap.get());
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81 auto bytes = FreeImage_GetBits(bitmap.get());
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82 int count = width_*height_*4;
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84 if(height_ > format_desc_.height)
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88 core::pixel_format_desc desc = core::pixel_format::bgra;
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89 desc.planes.push_back(core::pixel_format_desc::plane(width_, format_desc_.height, 4));
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90 auto frame = frame_factory->create_frame(reinterpret_cast<void*>(rand()), desc);
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92 if(count >= frame->image_data(0).size())
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94 std::copy_n(bytes + count - frame->image_data(0).size(), frame->image_data(0).size(), frame->image_data(0).begin());
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95 count -= static_cast<int>(frame->image_data(0).size());
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99 memset(frame->image_data(0).begin(), 0, frame->image_data(0).size());
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100 std::copy_n(bytes, count, frame->image_data(0).begin() + format_desc_.size - count);
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104 frames_.push_back(frame);
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109 auto offset = format_desc_.height - (height_ % format_desc_.height);
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110 auto offset2 = offset * 0.5/static_cast<double>(format_desc_.height);
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111 start_offset_[1] = (std::ceil(static_cast<double>(height_) / static_cast<double>(format_desc_.height)) + 1.0) * 0.5 - offset2;// - 1.5;
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119 core::pixel_format_desc desc = core::pixel_format::bgra;
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120 desc.planes.push_back(core::pixel_format_desc::plane(format_desc_.width, height_, 4));
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121 auto frame = frame_factory->create_frame(reinterpret_cast<void*>(rand()), desc);
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122 if(count >= frame->image_data(0).size())
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124 for(int y = 0; y < height_; ++y)
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125 std::copy_n(bytes + i * format_desc_.width*4 + y * width_*4, format_desc_.width*4, frame->image_data(0).begin() + y * format_desc_.width*4);
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128 count -= static_cast<int>(frame->image_data(0).size());
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132 memset(frame->image_data(0).begin(), 0, frame->image_data(0).size());
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133 int width2 = width_ % format_desc_.width;
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134 for(int y = 0; y < height_; ++y)
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135 std::copy_n(bytes + i * format_desc_.width*4 + y * width_*4, width2*4, frame->image_data(0).begin() + y * format_desc_.width*4);
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140 frames_.push_back(frame);
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143 std::reverse(frames_.begin(), frames_.end());
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147 auto offset = format_desc_.width - (width_ % format_desc_.width);
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148 start_offset_[0] = offset * 0.5/static_cast<double>(format_desc_.width);
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152 start_offset_[0] = (std::ceil(static_cast<double>(width_) / static_cast<double>(format_desc_.width)) + 1.0) * 0.5;// - 1.5;
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156 CASPAR_LOG(info) << print() << L" Initialized";
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161 virtual spl::shared_ptr<core::draw_frame> receive(int) override
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165 if(frames_.empty())
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166 return core::draw_frame::eof();
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168 if(height_ > format_desc_.height)
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170 if(static_cast<int>(std::abs(delta_)) >= height_ - format_desc_.height)
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171 return core::draw_frame::eof();
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173 for(int n = 0; n < frames_.size(); ++n)
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175 frames_[n]->get_frame_transform().fill_translation[0] = start_offset_[0];
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176 frames_[n]->get_frame_transform().fill_translation[1] = start_offset_[1] - (n+1) + delta_ * 0.5/static_cast<double>(format_desc_.height);
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181 if(static_cast<int>(std::abs(delta_)) >= width_ - format_desc_.width)
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182 return core::draw_frame::eof();
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184 for(int n = 0; n < frames_.size(); ++n)
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186 frames_[n]->get_frame_transform().fill_translation[0] = start_offset_[0] - (n+1) + delta_ * 0.5/static_cast<double>(format_desc_.width);
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187 frames_[n]->get_frame_transform().fill_translation[1] = start_offset_[1];
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191 return last_frame_ = spl::make_shared<core::draw_frame>(frames_);
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194 virtual spl::shared_ptr<core::draw_frame> last_frame() const override
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196 return last_frame_;
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199 virtual std::wstring print() const override
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201 return L"image_scroll_producer[" + filename_ + L"]";
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204 virtual std::wstring name() const override
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206 return L"image-scroll";
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209 virtual boost::property_tree::wptree info() const override
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211 boost::property_tree::wptree info;
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212 info.add(L"type", L"image-scroll");
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213 info.add(L"filename", filename_);
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217 virtual uint32_t nb_frames() const override
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219 if(height_ > format_desc_.height)
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221 auto length = (height_ - format_desc_.height);
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222 return length/std::abs(speed_);// + length % std::abs(delta_));
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226 auto length = (width_ - format_desc_.width);
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227 auto result = length/std::abs(speed_);// + length % std::abs(delta_));
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233 spl::shared_ptr<core::frame_producer> create_scroll_producer(const spl::shared_ptr<core::frame_factory>& frame_factory, const std::vector<std::wstring>& params)
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235 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");
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236 std::wstring filename = env::media_folder() + L"\\" + params[0];
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238 auto ext = std::find_if(extensions.begin(), extensions.end(), [&](const std::wstring& ex) -> bool
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240 return boost::filesystem::is_regular_file(boost::filesystem::wpath(filename).replace_extension(ex));
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243 if(ext == extensions.end())
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244 return core::frame_producer::empty();
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247 auto speed_it = std::find(params.begin(), params.end(), L"SPEED");
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248 if(speed_it != params.end())
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250 if(++speed_it != params.end())
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251 speed = boost::lexical_cast<int>(*speed_it);
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255 return core::frame_producer::empty();
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257 return core::wrap_producer(spl::make_shared<image_scroll_producer>(frame_factory, filename + L"." + *ext, speed));
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