2 * copyright (c) 2010 Sveriges Television AB <info@casparcg.com>
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4 * This file is part of CasparCG.
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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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22 #include "frame_visitor.h"
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24 #include <core/video_format.h>
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26 #include <common/memory/safe_ptr.h>
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28 #include <boost/range/iterator_range.hpp>
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32 namespace caspar { namespace core {
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34 class image_transform;
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35 class audio_transform;
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39 basic_frame(std::vector<safe_ptr<basic_frame>>&& frames);
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42 basic_frame(const safe_ptr<basic_frame>& frame);
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43 basic_frame(safe_ptr<basic_frame>&& frame);
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45 void swap(basic_frame& other);
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47 basic_frame(const basic_frame& other);
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48 basic_frame(basic_frame&& other);
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50 basic_frame& operator=(const basic_frame& other);
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51 basic_frame& operator=(basic_frame&& other);
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53 const image_transform& get_image_transform() const;
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54 image_transform& get_image_transform();
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56 const audio_transform& get_audio_transform() const;
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57 audio_transform& get_audio_transform();
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59 static safe_ptr<basic_frame> interlace(const safe_ptr<basic_frame>& frame1, const safe_ptr<basic_frame>& frame2, video_mode::type mode);
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60 static safe_ptr<basic_frame> combine(const safe_ptr<basic_frame>& frame1, const safe_ptr<basic_frame>& frame2);
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61 static safe_ptr<basic_frame> fill_and_key(const safe_ptr<basic_frame>& fill, const safe_ptr<basic_frame>& key);
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63 static const safe_ptr<basic_frame>& eof()
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65 static safe_ptr<basic_frame> frame = make_safe<basic_frame>();
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69 static const safe_ptr<basic_frame>& empty()
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71 static safe_ptr<basic_frame> frame = make_safe<basic_frame>();
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75 static const safe_ptr<basic_frame>& late()
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77 static safe_ptr<basic_frame> frame = make_safe<basic_frame>();
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81 virtual void accept(frame_visitor& visitor);
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83 struct implementation;
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84 safe_ptr<implementation> impl_;
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87 inline bool is_concrete_frame(const safe_ptr<basic_frame>& frame)
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89 return frame != basic_frame::empty() && frame != basic_frame::eof() && frame != basic_frame::late();
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92 inline bool is_concrete_frame(const std::shared_ptr<basic_frame>& frame)
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94 return frame != nullptr && frame.get() != basic_frame::empty().get() && frame.get() != basic_frame::eof().get() && frame.get() != basic_frame::late().get();
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