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_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/producer/frame_producer.h>
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29 #include <core/frame/frame.h>
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30 #include <core/frame/draw_frame.h>
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31 #include <core/frame/frame_factory.h>
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32 #include <core/frame/pixel_format.h>
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33 #include <core/monitor/monitor.h>
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35 #include <common/env.h>
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36 #include <common/log.h>
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37 #include <common/memory/array.h>
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39 #include <boost/assign.hpp>
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40 #include <boost/filesystem.hpp>
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41 #include <boost/property_tree/ptree.hpp>
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43 #include <algorithm>
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45 using namespace boost::assign;
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47 namespace caspar { namespace image {
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49 struct image_producer : public core::frame_producer
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51 monitor::basic_subject event_subject_;
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52 const std::wstring filename_;
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53 core::draw_frame frame_;
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55 explicit image_producer(const spl::shared_ptr<core::frame_factory>& frame_factory, const std::wstring& filename)
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56 : filename_(filename)
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57 , frame_(core::draw_frame::empty())
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59 auto bitmap = load_image(filename_);
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60 FreeImage_FlipVertical(bitmap.get());
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62 core::pixel_format_desc desc = core::pixel_format::bgra;
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63 desc.planes.push_back(core::pixel_format_desc::plane(FreeImage_GetWidth(bitmap.get()), FreeImage_GetHeight(bitmap.get()), 4));
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64 auto frame = frame_factory->create_frame(this, desc);
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66 std::copy_n(FreeImage_GetBits(bitmap.get()), frame.image_data(0).size(), frame.image_data(0).begin());
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67 frame_ = core::draw_frame(std::move(frame));
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69 CASPAR_LOG(info) << print() << L" Initialized";
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74 virtual core::draw_frame receive(int) override
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76 event_subject_ << monitor::event("file/path") % filename_;
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81 virtual core::draw_frame last_frame() const override
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86 virtual std::wstring print() const override
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88 return L"image_producer[" + filename_ + L"]";
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91 virtual std::wstring name() const override
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96 virtual boost::property_tree::wptree info() const override
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98 boost::property_tree::wptree info;
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99 info.add(L"type", L"image");
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100 info.add(L"filename", filename_);
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104 virtual void subscribe(const monitor::observable::observer_ptr& o) override
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106 return event_subject_.subscribe(o);
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109 virtual void unsubscribe(const monitor::observable::observer_ptr& o) override
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111 return event_subject_.unsubscribe(o);
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115 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)
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117 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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118 std::wstring filename = env::media_folder() + L"\\" + params[0];
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120 auto ext = std::find_if(extensions.begin(), extensions.end(), [&](const std::wstring& ex) -> bool
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122 return boost::filesystem::is_regular_file(boost::filesystem::path(filename).replace_extension(ex));
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125 if(ext == extensions.end())
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126 return core::frame_producer::empty();
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128 return spl::make_shared<image_producer>(frame_factory, filename + *ext);
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