+++ /dev/null
-/*
-** Copyright (C) 1999-2011 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->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0))
- { if ((error = au_read_header (psf)))
- return error ;
- } ;
-
- if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_AU)
- return SFE_BAD_OPEN_FORMAT ;
-
- subformat = SF_CODEC (psf->sf.format) ;
-
- if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
- { psf->endian = SF_ENDIAN (psf->sf.format) ;
- 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->file.mode == SFM_WRITE || psf->file.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 (SF_CODEC (psf->sf.format)) ;
- 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 = SF_ENDIAN (psf->sf.format) ;
-
- 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) ;
- if (au_fmt.channels < 1)
- { psf_log_printf (psf, " Channels : %d **** should be >= 1\n", au_fmt.channels) ;
- return SFE_CHANNEL_COUNT_ZERO ;
- }
- else
- 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 */
-
projects / Faustine.git / blobdiff