diff options
Diffstat (limited to 'libs/libsndfile/src/au.c')
| -rw-r--r-- | libs/libsndfile/src/au.c | 453 |
1 files changed, 0 insertions, 453 deletions
diff --git a/libs/libsndfile/src/au.c b/libs/libsndfile/src/au.c deleted file mode 100644 index 3a5f93bd90..0000000000 --- a/libs/libsndfile/src/au.c +++ /dev/null @@ -1,453 +0,0 @@ -/* -** Copyright (C) 1999-2004 Erik de Castro Lopo <erikd@mega-nerd.com> -** -** This program is free software; you can redistribute it and/or modify -** it under the terms of the GNU Lesser General Public License as published by -** the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details. -** -** You should have received a copy of the GNU Lesser 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. -*/ - -#include "sfconfig.h" - -#include <stdio.h> -#include <fcntl.h> -#include <string.h> -#include <ctype.h> - -#include "sndfile.h" -#include "sfendian.h" -#include "common.h" - -/*------------------------------------------------------------------------------ -** Macros to handle big/little endian issues. -*/ - -#define DOTSND_MARKER (MAKE_MARKER ('.', 's', 'n', 'd')) -#define DNSDOT_MARKER (MAKE_MARKER ('d', 'n', 's', '.')) - -#define AU_DATA_OFFSET 24 - -/*------------------------------------------------------------------------------ -** Known AU file encoding types. -*/ - -enum -{ AU_ENCODING_ULAW_8 = 1, /* 8-bit u-law samples */ - AU_ENCODING_PCM_8 = 2, /* 8-bit linear samples */ - AU_ENCODING_PCM_16 = 3, /* 16-bit linear samples */ - AU_ENCODING_PCM_24 = 4, /* 24-bit linear samples */ - AU_ENCODING_PCM_32 = 5, /* 32-bit linear samples */ - - AU_ENCODING_FLOAT = 6, /* floating-point samples */ - AU_ENCODING_DOUBLE = 7, /* double-precision float samples */ - AU_ENCODING_INDIRECT = 8, /* fragmented sampled data */ - AU_ENCODING_NESTED = 9, /* ? */ - AU_ENCODING_DSP_CORE = 10, /* DSP program */ - AU_ENCODING_DSP_DATA_8 = 11, /* 8-bit fixed-point samples */ - AU_ENCODING_DSP_DATA_16 = 12, /* 16-bit fixed-point samples */ - AU_ENCODING_DSP_DATA_24 = 13, /* 24-bit fixed-point samples */ - AU_ENCODING_DSP_DATA_32 = 14, /* 32-bit fixed-point samples */ - - AU_ENCODING_DISPLAY = 16, /* non-audio display data */ - AU_ENCODING_MULAW_SQUELCH = 17, /* ? */ - AU_ENCODING_EMPHASIZED = 18, /* 16-bit linear with emphasis */ - AU_ENCODING_NEXT = 19, /* 16-bit linear with compression (NEXT) */ - AU_ENCODING_COMPRESSED_EMPHASIZED = 20, /* A combination of the two above */ - AU_ENCODING_DSP_COMMANDS = 21, /* Music Kit DSP commands */ - AU_ENCODING_DSP_COMMANDS_SAMPLES = 22, /* ? */ - - AU_ENCODING_ADPCM_G721_32 = 23, /* G721 32 kbs ADPCM - 4 bits per sample. */ - AU_ENCODING_ADPCM_G722 = 24, /* G722 64 kbs ADPCM */ - AU_ENCODING_ADPCM_G723_24 = 25, /* G723 24 kbs ADPCM - 3 bits per sample. */ - AU_ENCODING_ADPCM_G723_40 = 26, /* G723 40 kbs ADPCM - 5 bits per sample. */ - - AU_ENCODING_ALAW_8 = 27 -} ; - -/*------------------------------------------------------------------------------ -** Typedefs. -*/ - -typedef struct -{ int dataoffset ; - int datasize ; - int encoding ; - int samplerate ; - int channels ; -} AU_FMT ; - - -/*------------------------------------------------------------------------------ -** Private static functions. -*/ - -static int au_close (SF_PRIVATE *psf) ; - -static int au_format_to_encoding (int format) ; - -static int au_write_header (SF_PRIVATE *psf, int calc_length) ; -static int au_read_header (SF_PRIVATE *psf) ; - -/*------------------------------------------------------------------------------ -** Public function. -*/ - -int -au_open (SF_PRIVATE *psf) -{ int subformat ; - int error = 0 ; - - if (psf->mode == SFM_READ || (psf->mode == SFM_RDWR && psf->filelength > 0)) - { if ((error = au_read_header (psf))) - return error ; - } ; - - if ((psf->sf.format & SF_FORMAT_TYPEMASK) != SF_FORMAT_AU) - return SFE_BAD_OPEN_FORMAT ; - - subformat = psf->sf.format & SF_FORMAT_SUBMASK ; - - if (psf->mode == SFM_WRITE || psf->mode == SFM_RDWR) - { psf->endian = psf->sf.format & SF_FORMAT_ENDMASK ; - if (CPU_IS_LITTLE_ENDIAN && psf->endian == SF_ENDIAN_CPU) - psf->endian = SF_ENDIAN_LITTLE ; - else if (psf->endian != SF_ENDIAN_LITTLE) - psf->endian = SF_ENDIAN_BIG ; - - if (au_write_header (psf, SF_FALSE)) - return psf->error ; - - psf->write_header = au_write_header ; - } ; - - psf->container_close = au_close ; - - psf->blockwidth = psf->bytewidth * psf->sf.channels ; - - switch (subformat) - { case SF_FORMAT_ULAW : /* 8-bit Ulaw encoding. */ - ulaw_init (psf) ; - break ; - - case SF_FORMAT_PCM_S8 : /* 8-bit linear PCM. */ - error = pcm_init (psf) ; - break ; - - case SF_FORMAT_PCM_16 : /* 16-bit linear PCM. */ - case SF_FORMAT_PCM_24 : /* 24-bit linear PCM */ - case SF_FORMAT_PCM_32 : /* 32-bit linear PCM. */ - error = pcm_init (psf) ; - break ; - - case SF_FORMAT_ALAW : /* 8-bit Alaw encoding. */ - alaw_init (psf) ; - break ; - - /* Lite remove start */ - case SF_FORMAT_FLOAT : /* 32-bit floats. */ - error = float32_init (psf) ; - break ; - - case SF_FORMAT_DOUBLE : /* 64-bit double precision floats. */ - error = double64_init (psf) ; - break ; - - case SF_FORMAT_G721_32 : - error = g72x_init (psf) ; - psf->sf.seekable = SF_FALSE ; - break ; - - case SF_FORMAT_G723_24 : - error = g72x_init (psf) ; - psf->sf.seekable = SF_FALSE ; - break ; - - case SF_FORMAT_G723_40 : - error = g72x_init (psf) ; - psf->sf.seekable = SF_FALSE ; - break ; - /* Lite remove end */ - - default : break ; - } ; - - return error ; -} /* au_open */ - -/*------------------------------------------------------------------------------ -*/ - -static int -au_close (SF_PRIVATE *psf) -{ - if (psf->mode == SFM_WRITE || psf->mode == SFM_RDWR) - au_write_header (psf, SF_TRUE) ; - - return 0 ; -} /* au_close */ - -static int -au_write_header (SF_PRIVATE *psf, int calc_length) -{ sf_count_t current ; - int encoding, datalength ; - - if (psf->pipeoffset > 0) - return 0 ; - - current = psf_ftell (psf) ; - - if (calc_length) - { psf->filelength = psf_get_filelen (psf) ; - - psf->datalength = psf->filelength - psf->dataoffset ; - if (psf->dataend) - psf->datalength -= psf->filelength - psf->dataend ; - - psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ; - } ; - - encoding = au_format_to_encoding (psf->sf.format & SF_FORMAT_SUBMASK) ; - if (! encoding) - return (psf->error = SFE_BAD_OPEN_FORMAT) ; - - /* Reset the current header length to zero. */ - psf->header [0] = 0 ; - psf->headindex = 0 ; - - /* - ** Only attempt to seek if we are not writng to a pipe. If we are - ** writing to a pipe we shouldn't be here anyway. - */ - if (psf->is_pipe == SF_FALSE) - psf_fseek (psf, 0, SEEK_SET) ; - - /* - ** AU format files allow a datalength value of -1 if the datalength - ** is not know at the time the header is written. - ** Also use this value of -1 if the datalength > 2 gigabytes. - */ - if (psf->datalength < 0 || psf->datalength > 0x7FFFFFFF) - datalength = -1 ; - else - datalength = (int) (psf->datalength & 0x7FFFFFFF) ; - - if (psf->endian == SF_ENDIAN_BIG) - { psf_binheader_writef (psf, "Em4", DOTSND_MARKER, AU_DATA_OFFSET) ; - psf_binheader_writef (psf, "E4444", datalength, encoding, psf->sf.samplerate, psf->sf.channels) ; - } - else if (psf->endian == SF_ENDIAN_LITTLE) - { psf_binheader_writef (psf, "em4", DNSDOT_MARKER, AU_DATA_OFFSET) ; - psf_binheader_writef (psf, "e4444", datalength, encoding, psf->sf.samplerate, psf->sf.channels) ; - } - else - return (psf->error = SFE_BAD_OPEN_FORMAT) ; - - /* Header construction complete so write it out. */ - psf_fwrite (psf->header, psf->headindex, 1, psf) ; - - if (psf->error) - return psf->error ; - - psf->dataoffset = psf->headindex ; - - if (current > 0) - psf_fseek (psf, current, SEEK_SET) ; - - return psf->error ; -} /* au_write_header */ - -static int -au_format_to_encoding (int format) -{ - switch (format) - { case SF_FORMAT_PCM_S8 : return AU_ENCODING_PCM_8 ; - case SF_FORMAT_PCM_16 : return AU_ENCODING_PCM_16 ; - case SF_FORMAT_PCM_24 : return AU_ENCODING_PCM_24 ; - case SF_FORMAT_PCM_32 : return AU_ENCODING_PCM_32 ; - - case SF_FORMAT_FLOAT : return AU_ENCODING_FLOAT ; - case SF_FORMAT_DOUBLE : return AU_ENCODING_DOUBLE ; - - case SF_FORMAT_ULAW : return AU_ENCODING_ULAW_8 ; - case SF_FORMAT_ALAW : return AU_ENCODING_ALAW_8 ; - - case SF_FORMAT_G721_32 : return AU_ENCODING_ADPCM_G721_32 ; - case SF_FORMAT_G723_24 : return AU_ENCODING_ADPCM_G723_24 ; - case SF_FORMAT_G723_40 : return AU_ENCODING_ADPCM_G723_40 ; - - default : break ; - } ; - return 0 ; -} /* au_format_to_encoding */ - -static int -au_read_header (SF_PRIVATE *psf) -{ AU_FMT au_fmt ; - int marker, dword ; - - memset (&au_fmt, 0, sizeof (au_fmt)) ; - psf_binheader_readf (psf, "pm", 0, &marker) ; - psf_log_printf (psf, "%M\n", marker) ; - - if (marker == DOTSND_MARKER) - { psf->endian = SF_ENDIAN_BIG ; - - psf_binheader_readf (psf, "E44444", &(au_fmt.dataoffset), &(au_fmt.datasize), - &(au_fmt.encoding), &(au_fmt.samplerate), &(au_fmt.channels)) ; - } - else if (marker == DNSDOT_MARKER) - { psf->endian = SF_ENDIAN_LITTLE ; - psf_binheader_readf (psf, "e44444", &(au_fmt.dataoffset), &(au_fmt.datasize), - &(au_fmt.encoding), &(au_fmt.samplerate), &(au_fmt.channels)) ; - } - else - return SFE_AU_NO_DOTSND ; - - psf_log_printf (psf, " Data Offset : %d\n", au_fmt.dataoffset) ; - - if (psf->fileoffset > 0 && au_fmt.datasize == -1) - { psf_log_printf (psf, " Data Size : -1\n") ; - return SFE_AU_EMBED_BAD_LEN ; - } ; - - if (psf->fileoffset > 0) - { psf->filelength = au_fmt.dataoffset + au_fmt.datasize ; - psf_log_printf (psf, " Data Size : %d\n", au_fmt.datasize) ; - } - else if (au_fmt.datasize == -1 || au_fmt.dataoffset + au_fmt.datasize == psf->filelength) - psf_log_printf (psf, " Data Size : %d\n", au_fmt.datasize) ; - else if (au_fmt.dataoffset + au_fmt.datasize < psf->filelength) - { psf->filelength = au_fmt.dataoffset + au_fmt.datasize ; - psf_log_printf (psf, " Data Size : %d\n", au_fmt.datasize) ; - } - else - { dword = psf->filelength - au_fmt.dataoffset ; - psf_log_printf (psf, " Data Size : %d (should be %d)\n", au_fmt.datasize, dword) ; - au_fmt.datasize = dword ; - } ; - - psf->dataoffset = au_fmt.dataoffset ; - psf->datalength = psf->filelength - psf->dataoffset ; - - if (psf_ftell (psf) < psf->dataoffset) - psf_binheader_readf (psf, "j", psf->dataoffset - psf_ftell (psf)) ; - - psf->sf.samplerate = au_fmt.samplerate ; - psf->sf.channels = au_fmt.channels ; - - /* Only fill in type major. */ - if (psf->endian == SF_ENDIAN_BIG) - psf->sf.format = SF_FORMAT_AU ; - else if (psf->endian == SF_ENDIAN_LITTLE) - psf->sf.format = SF_ENDIAN_LITTLE | SF_FORMAT_AU ; - - psf_log_printf (psf, " Encoding : %d => ", au_fmt.encoding) ; - - psf->sf.format = psf->sf.format & SF_FORMAT_ENDMASK ; - - switch (au_fmt.encoding) - { case AU_ENCODING_ULAW_8 : - psf->sf.format |= SF_FORMAT_AU | SF_FORMAT_ULAW ; - psf->bytewidth = 1 ; /* Before decoding */ - psf_log_printf (psf, "8-bit ISDN u-law\n") ; - break ; - - case AU_ENCODING_PCM_8 : - psf->sf.format |= SF_FORMAT_AU | SF_FORMAT_PCM_S8 ; - psf->bytewidth = 1 ; - psf_log_printf (psf, "8-bit linear PCM\n") ; - break ; - - case AU_ENCODING_PCM_16 : - psf->sf.format |= SF_FORMAT_AU | SF_FORMAT_PCM_16 ; - psf->bytewidth = 2 ; - psf_log_printf (psf, "16-bit linear PCM\n") ; - break ; - - case AU_ENCODING_PCM_24 : - psf->sf.format |= SF_FORMAT_AU | SF_FORMAT_PCM_24 ; - psf->bytewidth = 3 ; - psf_log_printf (psf, "24-bit linear PCM\n") ; - break ; - - case AU_ENCODING_PCM_32 : - psf->sf.format |= SF_FORMAT_AU | SF_FORMAT_PCM_32 ; - psf->bytewidth = 4 ; - psf_log_printf (psf, "32-bit linear PCM\n") ; - break ; - - case AU_ENCODING_FLOAT : - psf->sf.format |= SF_FORMAT_AU | SF_FORMAT_FLOAT ; - psf->bytewidth = 4 ; - psf_log_printf (psf, "32-bit float\n") ; - break ; - - case AU_ENCODING_DOUBLE : - psf->sf.format |= SF_FORMAT_AU | SF_FORMAT_DOUBLE ; - psf->bytewidth = 8 ; - psf_log_printf (psf, "64-bit double precision float\n") ; - break ; - - case AU_ENCODING_ALAW_8 : - psf->sf.format |= SF_FORMAT_AU | SF_FORMAT_ALAW ; - psf->bytewidth = 1 ; /* Before decoding */ - psf_log_printf (psf, "8-bit ISDN A-law\n") ; - break ; - - case AU_ENCODING_ADPCM_G721_32 : - psf->sf.format |= SF_FORMAT_AU | SF_FORMAT_G721_32 ; - psf->bytewidth = 0 ; - psf_log_printf (psf, "G721 32kbs ADPCM\n") ; - break ; - - case AU_ENCODING_ADPCM_G723_24 : - psf->sf.format |= SF_FORMAT_AU | SF_FORMAT_G723_24 ; - psf->bytewidth = 0 ; - psf_log_printf (psf, "G723 24kbs ADPCM\n") ; - break ; - - case AU_ENCODING_ADPCM_G723_40 : - psf->sf.format |= SF_FORMAT_AU | SF_FORMAT_G723_40 ; - psf->bytewidth = 0 ; - psf_log_printf (psf, "G723 40kbs ADPCM\n") ; - break ; - - case AU_ENCODING_ADPCM_G722 : - psf_log_printf (psf, "G722 64 kbs ADPCM (unsupported)\n") ; - break ; - - case AU_ENCODING_NEXT : - psf_log_printf (psf, "Weird NeXT encoding format (unsupported)\n") ; - break ; - - default : - psf_log_printf (psf, "Unknown!!\n") ; - break ; - } ; - - psf_log_printf (psf, " Sample Rate : %d\n", au_fmt.samplerate) ; - psf_log_printf (psf, " Channels : %d\n", au_fmt.channels) ; - - psf->blockwidth = psf->sf.channels * psf->bytewidth ; - - if (! psf->sf.frames && psf->blockwidth) - psf->sf.frames = (psf->filelength - psf->dataoffset) / psf->blockwidth ; - - return 0 ; -} /* au_read_header */ -/* -** Do not edit or modify anything in this comment block. -** The arch-tag line is a file identity tag for the GNU Arch -** revision control system. -** -** arch-tag: 31f691b1-cde9-4ed2-9469-6bca60fb9cd0 -*/ |