/usr/include/mediastreamer2/waveheader.h is in libmediastreamer-dev 3.3.2-4.1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 | /*
mediastreamer2 library - modular sound and video processing and streaming
Copyright (C) 2006 Simon MORLAT (simon.morlat@linphone.org)
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* the following code was taken from a free software utility that I don't remember the name. */
/* sorry */
#ifdef HAVE_CONFIG_H
#include "mediastreamer-config.h"
#endif
#ifndef waveheader_h
#define waveheader_h
#ifdef swap16
#else
/* all integer in wav header must be read in least endian order */
static inline uint16_t swap16(uint16_t a)
{
return ((a & 0xFF) << 8) | ((a & 0xFF00) >> 8);
}
#endif
#ifdef swap32
#else
static inline uint32_t swap32(uint32_t a)
{
return ((a & 0xFF) << 24) | ((a & 0xFF00) << 8) |
((a & 0xFF0000) >> 8) | ((a & 0xFF000000) >> 24);
}
#endif
#ifdef WORDS_BIGENDIAN
#define le_uint32(a) (swap32((a)))
#define le_uint16(a) (swap16((a)))
#define le_int16(a) ( (int16_t) swap16((uint16_t)((a))) )
#else
#define le_uint32(a) (a)
#define le_uint16(a) (a)
#define le_int16(a) (a)
#endif
typedef struct _riff_t {
char riff[4] ; /* "RIFF" (ASCII characters) */
uint32_t len ; /* Length of package (binary, little endian) */
char wave[4] ; /* "WAVE" (ASCII characters) */
} riff_t;
/* The FORMAT chunk */
typedef struct _format_t {
char fmt[4] ; /* "fmt_" (ASCII characters) */
uint32_t len ; /* length of FORMAT chunk (always 0x10) */
uint16_t type; /* codec type*/
uint16_t channel ; /* Channel numbers (0x01 = mono, 0x02 = stereo) */
uint32_t rate ; /* Sample rate (binary, in Hz) */
uint32_t bps ; /* Average Bytes Per Second */
uint16_t blockalign ; /*number of bytes per sample */
uint16_t bitpspl ; /* bits per sample */
} format_t;
/* The DATA chunk */
typedef struct _data_t {
char data[4] ; /* "data" (ASCII characters) */
int len ; /* length of data */
} data_t;
typedef struct _wave_header_t
{
riff_t riff_chunk;
format_t format_chunk;
data_t data_chunk;
} wave_header_t;
#define wave_header_get_rate(header) le_uint32((header)->format_chunk.rate)
#define wave_header_get_channel(header) le_uint16((header)->format_chunk.channel)
#define wave_header_get_bpsmpl(header) \
le_uint16((header)->format_chunk.blockalign)
#endif
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