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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24 #include "frame_producer.h"
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26 #include "../monitor/monitor.h"
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28 #include <common/forward.h>
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29 #include <common/spl/memory.h>
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31 #include <boost/property_tree/ptree_fwd.hpp>
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35 FORWARD1(boost, template<typename T> class unique_future);
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36 FORWARD1(boost, template<typename T> class optional);
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38 namespace caspar { namespace core {
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40 class layer sealed : public monitor::observable
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43 layer(int index = -1); // nothrow
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44 layer(layer&& other); // nothrow
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45 layer& operator=(layer&& other); // nothrow
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47 void swap(layer& other); // nothrow
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49 void load(spl::shared_ptr<class frame_producer> producer, const boost::optional<int32_t>& auto_play_delta = nullptr); // nothrow
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50 void play(); // nothrow
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51 void pause(); // nothrow
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52 void stop(); // nothrow
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54 spl::shared_ptr<class frame_producer> foreground() const; // nothrow
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55 spl::shared_ptr<class frame_producer> background() const; // nothrow
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57 spl::shared_ptr<class draw_frame> receive(frame_producer::flags flags, const struct video_format_desc& format_desc); // nothrow
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59 boost::property_tree::wptree info() const;
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61 // monitor::observable
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63 virtual void subscribe(const monitor::observable::observer_ptr& o) override;
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64 virtual void unsubscribe(const monitor::observable::observer_ptr& o) override;
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67 spl::shared_ptr<impl> impl_;
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