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 <common/memory/safe_ptr.h>
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26 #include <boost/noncopyable.hpp>
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27 #include <boost/property_tree/ptree_fwd.hpp>
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29 #include <functional>
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33 namespace caspar { namespace core {
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36 struct video_format_desc;
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38 struct frame_consumer : boost::noncopyable
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40 virtual ~frame_consumer() {}
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42 virtual bool send(const safe_ptr<read_frame>& frame) = 0;
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43 virtual void initialize(const video_format_desc& format_desc, int channel_index) = 0;
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44 virtual std::wstring print() const = 0;
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45 virtual boost::property_tree::wptree info() const = 0;
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46 virtual bool has_synchronization_clock() const {return true;}
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47 virtual int buffer_depth() const = 0;
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48 virtual int index() const = 0;
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50 static const safe_ptr<frame_consumer>& empty();
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53 safe_ptr<frame_consumer> create_consumer_cadence_guard(const safe_ptr<frame_consumer>& consumer);
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55 typedef std::function<safe_ptr<core::frame_consumer>(const std::vector<std::wstring>&)> consumer_factory_t;
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57 void register_consumer_factory(const consumer_factory_t& factory);
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58 safe_ptr<core::frame_consumer> create_consumer(const std::vector<std::wstring>& params);
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