MPD  0.20.6
SoxrResampler.hxx
Go to the documentation of this file.
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 MPD_PCM_SOXR_RESAMPLER_HXX
21 #define MPD_PCM_SOXR_RESAMPLER_HXX
22 
23 #include "Resampler.hxx"
24 #include "PcmBuffer.hxx"
25 #include "Compiler.h"
26 
27 struct AudioFormat;
28 struct ConfigBlock;
29 
33 class SoxrPcmResampler final : public PcmResampler {
34  struct soxr *soxr;
35 
36  unsigned channels;
37  float ratio;
38 
39  PcmBuffer buffer;
40 
41 public:
42  AudioFormat Open(AudioFormat &af, unsigned new_sample_rate) override;
43  void Close() override;
45 };
46 
47 void
49 
50 #endif
This structure describes the format of a raw PCM stream.
Definition: AudioFormat.hxx:37
void pcm_resample_soxr_global_init(const ConfigBlock &block)
A resampler using soxr.
ConstBuffer< void > Resample(ConstBuffer< void > src) override
Resamples a block of PCM data.
This is an interface for plugins that convert PCM data to a specific sample rate. ...
Definition: Resampler.hxx:32
Manager for a temporary buffer which grows as needed.
Definition: PcmBuffer.hxx:33
AudioFormat Open(AudioFormat &af, unsigned new_sample_rate) override
Opens the resampler, preparing it for Resample().
void Close() override
Closes the resampler.