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/algorithm/string/case_conv.hpp>
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35 namespace caspar { namespace ffmpeg {
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37 static std::wstring append_filter(const std::wstring& filters, const std::wstring& filter)
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39 return filters + (filters.empty() ? L"" : L",") + filter;
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42 class filter : boost::noncopyable
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45 filter(const std::wstring& filters = L"", const std::vector<PixelFormat>& pix_fmts = std::vector<PixelFormat>());
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46 filter(filter&& other);
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47 filter& operator=(filter&& other);
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49 void push(const std::shared_ptr<AVFrame>& frame);
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50 std::shared_ptr<AVFrame> poll();
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51 std::vector<safe_ptr<AVFrame>> poll_all();
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53 std::wstring filter_str() const;
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55 static bool is_double_rate(const std::wstring& filters)
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57 if(boost::to_upper_copy(filters).find(L"YADIF=1") != std::string::npos)
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60 if(boost::to_upper_copy(filters).find(L"YADIF=3") != std::string::npos)
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66 static bool is_deinterlacing(const std::wstring& filters)
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68 if(boost::to_upper_copy(filters).find(L"YADIF") != std::string::npos)
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73 static int delay(const std::wstring& filters)
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75 return is_double_rate(filters) ? 1 : 1;
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80 return delay(filter_str());
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83 bool is_double_rate() const
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85 return is_double_rate(filter_str());
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88 bool is_deinterlacing() const
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90 return is_deinterlacing(filter_str());
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93 struct implementation;
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94 safe_ptr<implementation> impl_;
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