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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23 #include "frame_producer.h"
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25 #include <common/memory/safe_ptr.h>
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27 #include <boost/noncopyable.hpp>
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28 #include <boost/signals2.hpp>
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29 #include <boost/thread/future.hpp>
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31 namespace caspar { namespace core {
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33 struct video_format_desc;
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35 ////////////////////////////////////////////////////////////////////////////////////////////////////
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36 /// \class frame_producer_device
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40 /// |**********| <- empty frame <- |***********| <- frame format <- |**********|
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41 /// PROTOCOL -> | PRODUCER | | MIXER | | CONSUMER | -> DISPLAY DEVICE
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42 /// |**********| -> rendered frames -> |***********| -> formatted frame -> |**********|
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44 ////////////////////////////////////////////////////////////////////////////////////////////////////
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46 class frame_producer_device : boost::noncopyable
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49 typedef boost::signals2::signal<void(const std::map<int, safe_ptr<basic_frame>>&)> output_t;
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51 explicit frame_producer_device(const video_format_desc& format_desc);
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52 frame_producer_device(frame_producer_device&& other);
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54 boost::signals2::connection connect(const output_t::slot_type& subscriber);
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56 void swap(frame_producer_device& other);
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58 void load(int index, const safe_ptr<frame_producer>& producer, bool preview = false);
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59 void pause(int index);
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60 void play(int index);
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61 void stop(int index);
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62 void clear(int index);
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64 void swap_layer(int index, size_t other_index);
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65 void swap_layer(int index, size_t other_index, frame_producer_device& other);
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66 boost::unique_future<safe_ptr<frame_producer>> foreground(size_t index);
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67 boost::unique_future<safe_ptr<frame_producer>> background(size_t index);
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70 struct implementation;
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71 safe_ptr<implementation> impl_;
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