SDRAngel
4.11.5
Developer docs for <a href="https://github.com/f4exb/sdrangel">SDRangel<\a>, an Open Source Qt5 / OpenGL 3.0+ SDR and signal analyzer frontend to various hardware.
sdrbase
audio
audiocompressor.h
Go to the documentation of this file.
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// Copyright (C) 2018 F4EXB //
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// written by Edouard Griffiths //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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#ifndef SDRBASE_AUDIO_AUDIOCOMPRESSOR_H_
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#define SDRBASE_AUDIO_AUDIOCOMPRESSOR_H_
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#include <stdint.h>
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#include "
export.h
"
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class
SDRBASE_API
AudioCompressor
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{
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public
:
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AudioCompressor
();
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~
AudioCompressor
();
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void
fillLUT();
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void
fillLUT2();
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void
fillALaw();
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void
fillULaw();
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int16_t
compress(
int16_t
sample);
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int8_t
compress8(
int16_t
sample);
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private
:
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int8_t
ALaw_Encode(
int16_t
number);
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int8_t
MuLaw_Encode(
int16_t
number);
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int16_t
m_lut[32768];
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static
const
uint16_t
ALAW_MAX
;
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static
const
uint16_t
MULAW_MAX
;
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static
const
uint16_t
MULAW_BIAS
;
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};
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#endif
/* SDRBASE_AUDIO_AUDIOCOMPRESSOR_H_ */
int16_t
short int16_t
Definition:
rtptypes_win.h:43
export.h
AudioCompressor::MULAW_MAX
static const uint16_t MULAW_MAX
Definition:
audiocompressor.h:43
AudioCompressor::MULAW_BIAS
static const uint16_t MULAW_BIAS
Definition:
audiocompressor.h:44
uint16_t
unsigned short uint16_t
Definition:
rtptypes_win.h:44
int8_t
char int8_t
Definition:
rtptypes_win.h:41
SDRBASE_API
#define SDRBASE_API
Definition:
export.h:40
AudioCompressor::ALAW_MAX
static const uint16_t ALAW_MAX
Definition:
audiocompressor.h:42
AudioCompressor
Definition:
audiocompressor.h:25
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