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/* $Id: glue-audio_format.h,v 1.6 2009-01-27 17:44:18 potyra Exp $
*
* Copyright (C) 2007-2009 FAUmachine Team <info@faumachine.org>.
* This program is free software. You can redistribute it and/or modify it
* under the terms of the GNU General Public License, either version 2 of
* the License, or (at your option) any later version. See COPYING.
*/
#ifndef __GLUE_AUDIO_FORMAT_H
#define __GLUE_AUDIO_FORMAT_H
/* defines some constants to identify sample characteristics */
#include "config.h" /* for native endianness */
#ifdef HAVE_SYS_SOUNDCARD_H
#include <sys/soundcard.h> /* For AFMT_* on linux */
#else
#ifdef HAVE_SOUNDCARD_H
#include <soundcard.h> /* OpenBSD have this instead of <sys/soundcard> */
#endif
#endif
/* standard, old OSS audio formats */
#ifndef AFMT_MU_LAW
# define AFMT_MU_LAW 0x00000001
# define AFMT_A_LAW 0x00000002
# define AFMT_IMA_ADPCM 0x00000004
# define AFMT_U8 0x00000008
# define AFMT_S16_LE 0x00000010 /* Little endian signed 16*/
# define AFMT_S16_BE 0x00000020 /* Big endian signed 16 */
# define AFMT_S8 0x00000040
# define AFMT_U16_LE 0x00000080 /* Little endian U16 */
# define AFMT_U16_BE 0x00000100 /* Big endian U16 */
#endif
#ifndef AFMT_MPEG
# define AFMT_MPEG 0x00000200 /* MPEG (2) audio */
#endif
#ifndef AFMT_AC3
# define AFMT_AC3 0x00000400 /* Dolby Digital AC3 */
#endif
/* 32 bit formats (MSB aligned) formats */
#ifndef AFMT_S32_LE
# define AFMT_S32_LE 0x00001000
# define AFMT_S32_BE 0x00002000
#endif
/* native endian formats */
#ifndef AFMT_S16_NE
# ifdef WORDS_BIGENDIAN
# define AFMT_S16_NE AFMT_S16_BE
# define AFMT_S32_NE AFMT_S32_BE
# else
# define AFMT_S16_NE AFMT_S16_LE
# define AFMT_S32_NE AFMT_S32_LE
# endif
#endif
#define OBTAIN_BITRATE(a) (((a != AFMT_U8) && (a != AFMT_S8)) ? 16 : 8)
#define sizeof_format(x) (((x) == AFMT_U8) ? \
1 : ((x) == AFMT_S16_NE) ? \
2 : -1)
#ifndef AFMT_FLOAT
# define AFMT_FLOAT 0x00004000
#endif
#endif /* __GLUE_AUDIO_FORMAT_H */
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