2 * Copyright 2013 Sveriges Television AB http://casparcg.com/
4 * This file is part of CasparCG (www.casparcg.com).
6 * CasparCG is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * CasparCG is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
19 * Author: Robert Nagy, ronag89@gmail.com
24 #include <common/memory.h>
26 #include <boost/rational.hpp>
27 #include <boost/noncopyable.hpp>
33 #pragma warning (push)
34 #pragma warning (disable : 4244)
38 #include <libavutil/samplefmt.h>
46 namespace caspar { namespace ffmpeg {
48 class audio_filter : boost::noncopyable
52 boost::rational<int> in_time_base,
54 AVSampleFormat in_sample_fmt,
55 std::int64_t in_audio_channel_layout,
56 std::vector<int> out_sample_rates,
57 std::vector<AVSampleFormat> out_sample_fmts,
58 std::vector<std::int64_t> out_audio_channel_layouts,
59 const std::string& filtergraph);
60 audio_filter(audio_filter&& other);
61 audio_filter& operator=(audio_filter&& other);
63 void push(const std::shared_ptr<AVFrame>& frame);
64 std::shared_ptr<AVFrame> poll();
65 std::vector<spl::shared_ptr<AVFrame>> poll_all();
67 std::wstring filter_str() const;
69 struct implementation;
70 spl::shared_ptr<implementation> impl_;