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 <common/memory/safe_ptr.h>
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24 #include <core/video_format.h>
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25 #include <core/producer/frame/frame_visitor.h>
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26 #include <core/producer/frame/pixel_format.h>
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28 #include <boost/noncopyable.hpp>
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30 namespace caspar { namespace core {
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35 class video_channel_context;;
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37 class image_mixer : public core::frame_visitor, boost::noncopyable
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40 image_mixer(video_channel_context& context);
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42 virtual void begin(const core::basic_frame& frame);
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43 virtual void visit(core::write_frame& frame);
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49 image_mixer& operator=(image_mixer&& other);
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51 safe_ptr<host_buffer> render();
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53 safe_ptr<write_frame> create_frame(void* tag, const core::pixel_format_desc& format);
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56 struct implementation;
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57 safe_ptr<implementation> impl_;
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