2 Copyright (C) 2012 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 #ifndef LIBDCP_SOUND_ASSET_H
21 #define LIBDCP_SOUND_ASSET_H
23 /** @file src/sound_asset.h
24 * @brief An asset made up of PCM audio data files
27 #include "mxf_asset.h"
37 class SoundAssetWriter
40 void write (float const * const *, int);
44 friend class SoundAsset;
46 SoundAssetWriter (SoundAsset *);
48 /* no copy construction */
49 SoundAssetWriter (SoundAssetWriter const &);
50 SoundAssetWriter& operator= (SoundAssetWriter const &);
52 void write_current_frame ();
54 /* do this with an opaque pointer so we don't have to include
59 boost::shared_ptr<ASDCPState> _state;
64 int _frame_buffer_offset;
67 /** @brief An asset made up of WAV files */
68 class SoundAsset : public MXFAsset
71 SoundAsset (boost::filesystem::path directory, boost::filesystem::path mxf_name);
75 /** The following parameters must be set up (if required) before calling this:
76 * Interop mode (set_interop)
77 * Edit rate (set_edit_rate)
78 * MXF Metadata (set_metadata)
79 * Channels (set_channels)
80 * Intrinsic duration (set_intrinsic_duration)
82 void create (std::vector<boost::filesystem::path> const & files);
84 /** The following parameters must be set up (if required) before calling this:
85 * Interop mode (set_interop)
86 * Edit rate (set_edit_rate)
87 * MXF Metadata (set_metadata)
88 * Channels (set_channels)
89 * Intrinsic duration (set_intrinsic_duration)
91 void create (boost::function<boost::filesystem::path (Channel)> get_path);
93 boost::shared_ptr<SoundAssetWriter> start_write ();
95 bool equals (boost::shared_ptr<const Asset> other, EqualityOptions opt, boost::function<void (NoteType, std::string)> note) const;
97 boost::shared_ptr<const SoundFrame> get_frame (int n) const;
99 void set_channels (int c) {
103 int channels () const {
107 void set_sampling_rate (int s) {
111 int sampling_rate () const {
112 return _sampling_rate;
116 std::string key_type () const;
117 void construct (boost::function<boost::filesystem::path (Channel)> get_path);
118 boost::filesystem::path path_from_channel (Channel channel, std::vector<boost::filesystem::path> const & files);
119 std::string cpl_node_name () const;
121 /** Number of channels in the asset */