2 Copyright (C) 2012-2016 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic 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 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic 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 DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
21 /** @file src/lib/audio_decoder.h
22 * @brief Parent class for audio decoders.
25 #ifndef DCPOMATIC_AUDIO_DECODER_H
26 #define DCPOMATIC_AUDIO_DECODER_H
29 #include "content_audio.h"
30 #include "audio_stream.h"
31 #include <boost/enable_shared_from_this.hpp>
35 class AudioDecoderStream;
38 /** @class AudioDecoder.
39 * @brief Parent class for audio decoders.
41 class AudioDecoder : public boost::enable_shared_from_this<AudioDecoder>
44 AudioDecoder (Decoder* parent, boost::shared_ptr<const AudioContent>, boost::shared_ptr<Log> log);
46 /** Try to fetch some audio from a specific place in this content.
47 * @param frame Frame to start from (after resampling, if applicable)
48 * @param length Frames to get (after resampling, if applicable)
49 * @param accurate true to try hard to return frames from exactly `frame', false if we don't mind nearby frames.
50 * @return Time-stamped audio data which may or may not be from the location (and of the length) requested.
52 ContentAudio get (AudioStreamPtr stream, Frame time, Frame length, bool accurate);
57 void give (AudioStreamPtr stream, boost::shared_ptr<const AudioBuffers>, ContentTime);
59 void seek (ContentTime t, bool accurate);
62 /** An AudioDecoderStream object to manage each stream in _audio_content */
63 std::map<AudioStreamPtr, boost::shared_ptr<AudioDecoderStream> > _streams;