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libavresample
dither.h
Go to the documentation of this file.
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/*
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* Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com>
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVRESAMPLE_DITHER_H
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#define AVRESAMPLE_DITHER_H
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#include "
avresample.h
"
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#include "
audio_data.h
"
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typedef
struct
DitherContext
DitherContext
;
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typedef
struct
DitherDSPContext
{
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void
(*
quantize
)(int16_t *dst,
const
float
*src,
float
*
dither
,
int
len
);
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int
ptr_align
;
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int
samples_align
;
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void
(*
dither_int_to_float
)(
float
*dst,
int
*src0,
int
len
);
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}
DitherDSPContext
;
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DitherContext
*
ff_dither_alloc
(
AVAudioResampleContext
*avr,
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enum
AVSampleFormat
out_fmt,
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enum
AVSampleFormat
in_fmt,
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int
channels,
int
sample_rate);
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void
ff_dither_free
(
DitherContext
**c);
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int
ff_convert_dither
(
DitherContext
*c,
AudioData
*dst,
AudioData
*src);
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#endif
/* AVRESAMPLE_DITHER_H */