Mercurial > hg > audiostuff
comparison spandsp-0.0.3/spandsp-0.0.3/src/spandsp/bitstream.h @ 5:f762bf195c4b
import spandsp-0.0.3
| author | Peter Meerwald <pmeerw@cosy.sbg.ac.at> |
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| date | Fri, 25 Jun 2010 16:00:21 +0200 |
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| 4:26cd8f1ef0b1 | 5:f762bf195c4b |
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| 1 /* | |
| 2 * SpanDSP - a series of DSP components for telephony | |
| 3 * | |
| 4 * bitstream.h - Bitstream composition and decomposition routines. | |
| 5 * | |
| 6 * Written by Steve Underwood <steveu@coppice.org> | |
| 7 * | |
| 8 * Copyright (C) 2006 Steve Underwood | |
| 9 * | |
| 10 * All rights reserved. | |
| 11 * | |
| 12 * This program is free software; you can redistribute it and/or modify | |
| 13 * it under the terms of the GNU General Public License version 2, as | |
| 14 * published by the Free Software Foundation. | |
| 15 * | |
| 16 * This program is distributed in the hope that it will be useful, | |
| 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 19 * GNU General Public License for more details. | |
| 20 * | |
| 21 * You should have received a copy of the GNU General Public License | |
| 22 * along with this program; if not, write to the Free Software | |
| 23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
| 24 * | |
| 25 * $Id: bitstream.h,v 1.3 2006/10/24 13:45:28 steveu Exp $ | |
| 26 */ | |
| 27 | |
| 28 /*! \file */ | |
| 29 | |
| 30 #if !defined(_BITSTREAM_H_) | |
| 31 #define _BITSTREAM_H_ | |
| 32 | |
| 33 /*! \page bitstream_page Bitstream composition and decomposition | |
| 34 \section bitstream_page_sec_1 What does it do? | |
| 35 | |
| 36 \section bitstream_page_sec_2 How does it work? | |
| 37 */ | |
| 38 | |
| 39 typedef struct | |
| 40 { | |
| 41 unsigned int bitstream; | |
| 42 unsigned int residue; | |
| 43 } bitstream_state_t; | |
| 44 | |
| 45 | |
| 46 #ifdef __cplusplus | |
| 47 extern "C" { | |
| 48 #endif | |
| 49 | |
| 50 bitstream_state_t *bitstream_init(bitstream_state_t *s); | |
| 51 | |
| 52 void bitstream_put(bitstream_state_t *s, uint8_t **c, unsigned int value, int bits); | |
| 53 | |
| 54 void bitstream_flush(bitstream_state_t *s, uint8_t **c); | |
| 55 | |
| 56 void bitstream_put2(bitstream_state_t *s, uint8_t **c, unsigned int value, int bits); | |
| 57 | |
| 58 void bitstream_flush2(bitstream_state_t *s, uint8_t **c); | |
| 59 | |
| 60 unsigned int bitstream_get(bitstream_state_t *s, const uint8_t **c, int bits); | |
| 61 | |
| 62 unsigned int bitstream_get2(bitstream_state_t *s, const uint8_t **c, int bits); | |
| 63 | |
| 64 #ifdef __cplusplus | |
| 65 } | |
| 66 #endif | |
| 67 | |
| 68 #endif | |
| 69 /*- End of file ------------------------------------------------------------*/ |