Audaspace 1.5.0
A high level audio library.
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LinearResampleReader.h
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1/*******************************************************************************
2 * Copyright 2009-2016 Jörg Müller
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 ******************************************************************************/
16
17#pragma once
18
26#include "util/Buffer.h"
27
29
34{
35private:
39 Channels m_channels;
40
44 float m_cache_pos;
45
49 Buffer m_buffer;
50
54 Buffer m_cache;
55
59 bool m_cache_ok;
60
61 // delete copy constructor and operator=
63 LinearResampleReader& operator=(const LinearResampleReader&) = delete;
64
65public:
71 LinearResampleReader(std::shared_ptr<IReader> reader, SampleRate rate);
72
73 virtual void seek(int position);
74 virtual int getLength() const;
75 virtual int getPosition() const;
76 virtual Specs getSpecs() const;
77 virtual void read(int& length, bool& eos, sample_t* buffer);
78};
79
#define AUD_NAMESPACE_END
Closes the audaspace namespace aud.
Definition Audaspace.h:119
float sample_t
Sample type.(float samples)
Definition Audaspace.h:126
#define AUD_NAMESPACE_BEGIN
Opens the audaspace namespace aud.
Definition Audaspace.h:116
#define AUD_API
Used for exporting symbols in the shared library.
Definition Audaspace.h:93
The Buffer class.
The ResampleReader class.
double SampleRate
Sample rate type.
Definition Specification.h:115
Channels
The channel count.
Definition Specification.h:59
This class is a simple buffer in RAM which is 32 Byte aligned and provides resize functionality.
Definition Buffer.h:34
This resampling reader does simple first-order hold resampling.
Definition LinearResampleReader.h:34
LinearResampleReader(std::shared_ptr< IReader > reader, SampleRate rate)
Creates a resampling reader.
virtual void read(int &length, bool &eos, sample_t *buffer)
Request to read the next length samples out of the source.
virtual Specs getSpecs() const
Returns the specification of the reader.
virtual void seek(int position)
Seeks to a specific position in the source.
virtual int getPosition() const
Returns the position of the source as a sample count value.
virtual int getLength() const
Returns an approximated length of the source in samples.
This is the base class for all resampling readers.
Definition ResampleReader.h:33
Specification of a sound source.
Definition Specification.h:119