2 Copyright (C) 2012-2016 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 /** @file src/sound_asset.h
21 * @brief SoundAsset class
24 #ifndef LIBDCP_SOUND_ASSET_H
25 #define LIBDCP_SOUND_ASSET_H
35 class SoundAssetWriter;
38 * @brief Representation of a sound asset
40 class SoundAsset : public Asset, public MXF
43 SoundAsset (boost::filesystem::path file);
44 SoundAsset (Fraction edit_rate, int sampling_rate, int channels);
46 boost::shared_ptr<SoundAssetWriter> start_write (boost::filesystem::path file, Standard standard);
49 boost::shared_ptr<const Asset> other,
54 boost::shared_ptr<const SoundFrame> get_frame (int n) const;
56 /** @return number of channels */
57 int channels () const {
61 /** @return sampling rate in Hz */
62 int sampling_rate () const {
63 return _sampling_rate;
66 Fraction edit_rate () const {
70 int64_t intrinsic_duration () const {
71 return _intrinsic_duration;
74 static bool valid_mxf (boost::filesystem::path);
77 friend class SoundAssetWriter;
79 std::string pkl_type (Standard standard) const;
82 /** The total length of this content in video frames. The amount of
83 * content presented may be less than this.
85 int64_t _intrinsic_duration;
86 int _channels; ///< number of channels
87 int _sampling_rate; ///< sampling rate in Hz