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libavcodec
msgsmdec.c
Go to the documentation of this file.
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/*
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* gsm 06.10 decoder, Microsoft variant
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* Copyright (c) 2010 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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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#define BITSTREAM_READER_LE
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#include "
avcodec.h
"
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#include "
msgsmdec.h
"
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#include "
gsm.h
"
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#include "
gsmdec_template.c
"
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int
ff_msgsm_decode_block
(
AVCodecContext
*avctx, int16_t *samples,
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const
uint8_t
*
buf
,
int
mode
)
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{
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int
res;
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GetBitContext
gb;
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init_get_bits
(&gb, buf,
GSM_MS_BLOCK_SIZE
* 8);
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res =
gsm_decode_block
(avctx, samples, &gb, mode);
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if
(res < 0)
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return
res;
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return
gsm_decode_block
(avctx, samples +
GSM_FRAME_SIZE
, &gb, mode);
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}
GSM_FRAME_SIZE
#define GSM_FRAME_SIZE
Definition:
gsm.h:30
uint8_t
uint8_t
Definition:
audio_convert.c:194
mode
mode
Definition:
f_perms.c:27
GSM_MS_BLOCK_SIZE
#define GSM_MS_BLOCK_SIZE
Definition:
gsm.h:26
gsm_decode_block
static int gsm_decode_block(AVCodecContext *avctx, int16_t *samples, GetBitContext *gb, int mode)
Definition:
gsmdec_template.c:129
ff_msgsm_decode_block
int ff_msgsm_decode_block(AVCodecContext *avctx, int16_t *samples, const uint8_t *buf, int mode)
Definition:
msgsmdec.c:28
gsmdec_template.c
GSM decoder.
gsm.h
avcodec.h
Libavcodec external API header.
msgsmdec.h
AVCodecContext
main external API structure.
Definition:
avcodec.h:1241
buf
void * buf
Definition:
avisynth_c.h:553
init_get_bits
static int init_get_bits(GetBitContext *s, const uint8_t *buffer, int bit_size)
Initialize GetBitContext.
Definition:
get_bits.h:410
GetBitContext
Definition:
get_bits.h:54
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