MPD  0.20.18
LibsamplerateResampler.hxx
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1 /*
2  * Copyright 2003-2017 The Music Player Daemon Project
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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
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19 
20 #ifndef MPD_PCM_LIBSAMPLERATE_RESAMPLER_HXX
21 #define MPD_PCM_LIBSAMPLERATE_RESAMPLER_HXX
22 
23 #include "Resampler.hxx"
24 #include "PcmBuffer.hxx"
25 #include "AudioFormat.hxx"
26 #include "Compiler.h"
27 
28 #include <samplerate.h>
29 
30 struct ConfigBlock;
31 
36  unsigned src_rate, dest_rate;
37  unsigned channels;
38 
39  SRC_STATE *state;
40  SRC_DATA data;
41 
42  PcmBuffer buffer;
43 
44 public:
45  AudioFormat Open(AudioFormat &af, unsigned new_sample_rate) override;
46  void Close() override;
47  void Reset() override;
49 
50 private:
52 };
53 
54 void
56 
57 #endif
This structure describes the format of a raw PCM stream.
Definition: AudioFormat.hxx:37
void Reset() override
Reset the filter&#39;s state, e.g.
void pcm_resample_lsr_global_init(const ConfigBlock &block)
void Close() override
Closes the resampler.
A resampler using libsamplerate.
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
A reference to a memory area that is read-only.
Definition: FlacPcm.hxx:29
ConstBuffer< void > Resample(ConstBuffer< void > src) override
Resamples a block of PCM data.
AudioFormat Open(AudioFormat &af, unsigned new_sample_rate) override
Opens the resampler, preparing it for Resample().