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PcmConvert.hxx
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1 /*
2 * Copyright 2003-2017 The Music Player Daemon Project
3 * http://www.musicpd.org
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 */
19
20 #ifndef PCM_CONVERT_HXX
21 #define PCM_CONVERT_HXX
22
23 #include "check.h"
24 #include "FormatConverter.hxx"
25 #include "ChannelsConverter.hxx"
26 #include "GlueResampler.hxx"
27 #include "AudioFormat.hxx"
28
29 #ifdef ENABLE_DSD
30 #include "PcmDsd.hxx"
31 #endif
32
33 template<typename T> struct ConstBuffer;
34
40 class PcmConvert {
41 #ifdef ENABLE_DSD
42 PcmDsd dsd;
43 #endif
44
45 GluePcmResampler resampler;
46 PcmFormatConverter format_converter;
47 PcmChannelsConverter channels_converter;
48
49 AudioFormat src_format, dest_format;
50
51 bool enable_resampler, enable_format, enable_channels;
52
53 public:
54 PcmConvert();
55 ~PcmConvert();
56
62 void Open(AudioFormat _src_format, AudioFormat _dest_format);
63
68 void Close();
69
73 void Reset();
74
83 ConstBuffer<void> Convert(ConstBuffer<void> src);
84 };
85
86 void
87 pcm_convert_global_init();
88
89 #endif
check.h
AudioFormat
This structure describes the format of a raw PCM stream.
Definition: AudioFormat.hxx:37
PcmConvert::Open
void Open(AudioFormat _src_format, AudioFormat _dest_format)
Prepare the object.
ConstBuffer< void >
Definition: ConstBuffer.hxx:45
AudioFormat.hxx
PcmConvert::Close
void Close()
Close the object after it was prepared with Open().
PcmConvert::~PcmConvert
~PcmConvert()
ChannelsConverter.hxx
PcmConvert::Convert
ConstBuffer< void > Convert(ConstBuffer< void > src)
Converts PCM data between two audio formats.
PcmFormatConverter
A class that converts samples from one format to another.
Definition: FormatConverter.hxx:37
PcmConvert::PcmConvert
PcmConvert()
GlueResampler.hxx
PcmDsd.hxx
PcmConvert::Reset
void Reset()
Reset the filter's state, e.g.
FormatConverter.hxx
pcm_convert_global_init
void pcm_convert_global_init()
PcmDsd
Wrapper for the dsd2pcm library.
Definition: PcmDsd.hxx:36
ConstBuffer
A reference to a memory area that is read-only.
Definition: FlacPcm.hxx:29
GluePcmResampler
A glue class that integrates a PcmResampler and automatically converts source data to the sample form...
Definition: GlueResampler.hxx:35
PcmConvert
This object is statically allocated (within another struct), and holds buffer allocations and the sta...
Definition: PcmConvert.hxx:40
PcmChannelsConverter
A class that converts samples from one format to another.
Definition: ChannelsConverter.hxx:36