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-rw-r--r--libs/libsndfile/src/vox_adpcm.c537
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diff --git a/libs/libsndfile/src/vox_adpcm.c b/libs/libsndfile/src/vox_adpcm.c
deleted file mode 100644
index f743a72911..0000000000
--- a/libs/libsndfile/src/vox_adpcm.c
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@@ -1,537 +0,0 @@
-/*
-** Copyright (C) 2002-2005 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.
-*/
-
-/*
-** This is the OKI / Dialogic ADPCM encoder/decoder. It converts from
-** 12 bit linear sample data to a 4 bit ADPCM.
-**
-** Implemented from the description found here:
-**
-** http://www.comptek.ru:8100/telephony/tnotes/tt1-13.html
-**
-** and compared against the encoder/decoder found here:
-**
-** http://ibiblio.org/pub/linux/apps/sound/convert/vox.tar.gz
-*/
-
-#include "sfconfig.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "sndfile.h"
-#include "sfendian.h"
-#include "float_cast.h"
-#include "common.h"
-
-#define VOX_DATA_LEN 2048
-#define PCM_DATA_LEN (VOX_DATA_LEN *2)
-
-typedef struct
-{ short last ;
- short step_index ;
-
- int vox_bytes, pcm_samples ;
-
- unsigned char vox_data [VOX_DATA_LEN] ;
- short pcm_data [PCM_DATA_LEN] ;
-} VOX_ADPCM_PRIVATE ;
-
-static int vox_adpcm_encode_block (VOX_ADPCM_PRIVATE *pvox) ;
-static int vox_adpcm_decode_block (VOX_ADPCM_PRIVATE *pvox) ;
-
-static short vox_adpcm_decode (char code, VOX_ADPCM_PRIVATE *pvox) ;
-static char vox_adpcm_encode (short samp, VOX_ADPCM_PRIVATE *pvox) ;
-
-static sf_count_t vox_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ;
-static sf_count_t vox_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ;
-static sf_count_t vox_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ;
-static sf_count_t vox_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ;
-
-static sf_count_t vox_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ;
-static sf_count_t vox_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ;
-static sf_count_t vox_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ;
-static sf_count_t vox_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ;
-
-static int vox_read_block (SF_PRIVATE *psf, VOX_ADPCM_PRIVATE *pvox, short *ptr, int len) ;
-
-/*============================================================================================
-** Predefined OKI ADPCM encoder/decoder tables.
-*/
-
-static short step_size_table [49] =
-{ 16, 17, 19, 21, 23, 25, 28, 31, 34, 37, 41, 45, 50, 55, 60,
- 66, 73, 80, 88, 97, 107, 118, 130, 143, 157, 173, 190, 209,
- 230, 253, 279, 307, 337, 371, 408, 449, 494, 544, 598, 658,
- 724, 796, 876, 963, 1060, 1166, 1282, 1408, 1552
-} ; /* step_size_table */
-
-static short step_adjust_table [8] =
-{ -1, -1, -1, -1, 2, 4, 6, 8
-} ; /* step_adjust_table */
-
-/*------------------------------------------------------------------------------
-*/
-
-int
-vox_adpcm_init (SF_PRIVATE *psf)
-{ VOX_ADPCM_PRIVATE *pvox = NULL ;
-
- if (psf->mode == SFM_RDWR)
- return SFE_BAD_MODE_RW ;
-
- if (psf->mode == SFM_WRITE && psf->sf.channels != 1)
- return SFE_CHANNEL_COUNT ;
-
- if ((pvox = malloc (sizeof (VOX_ADPCM_PRIVATE))) == NULL)
- return SFE_MALLOC_FAILED ;
-
- psf->fdata = (void*) pvox ;
- memset (pvox, 0, sizeof (VOX_ADPCM_PRIVATE)) ;
-
- if (psf->mode == SFM_WRITE)
- { psf->write_short = vox_write_s ;
- psf->write_int = vox_write_i ;
- psf->write_float = vox_write_f ;
- psf->write_double = vox_write_d ;
- }
- else
- { psf_log_printf (psf, "Header-less OKI Dialogic ADPCM encoded file.\n") ;
- psf_log_printf (psf, "Setting up for 8kHz, mono, Vox ADPCM.\n") ;
-
- psf->read_short = vox_read_s ;
- psf->read_int = vox_read_i ;
- psf->read_float = vox_read_f ;
- psf->read_double = vox_read_d ;
- } ;
-
- /* Standard sample rate chennels etc. */
- if (psf->sf.samplerate < 1)
- psf->sf.samplerate = 8000 ;
- psf->sf.channels = 1 ;
-
- psf->sf.frames = psf->filelength * 2 ;
-
- psf->sf.seekable = SF_FALSE ;
-
- /* Seek back to start of data. */
- if (psf_fseek (psf, 0 , SEEK_SET) == -1)
- return SFE_BAD_SEEK ;
-
- return 0 ;
-} /* vox_adpcm_init */
-
-/*------------------------------------------------------------------------------
-*/
-
-static char
-vox_adpcm_encode (short samp, VOX_ADPCM_PRIVATE *pvox)
-{ short code ;
- short diff, error, stepsize ;
-
- stepsize = step_size_table [pvox->step_index] ;
- code = 0 ;
-
- diff = samp - pvox->last ;
- if (diff < 0)
- { code = 0x08 ;
- error = -diff ;
- }
- else
- error = diff ;
-
- if (error >= stepsize)
- { code = code | 0x04 ;
- error -= stepsize ;
- } ;
-
- if (error >= stepsize / 2)
- { code = code | 0x02 ;
- error -= stepsize / 2 ;
- } ;
-
- if (error >= stepsize / 4)
- code = code | 0x01 ;
-
- /*
- ** To close the feedback loop, the deocder is used to set the
- ** estimate of last sample and in doing so, also set the step_index.
- */
- pvox->last = vox_adpcm_decode (code, pvox) ;
-
- return code ;
-} /* vox_adpcm_encode */
-
-static short
-vox_adpcm_decode (char code, VOX_ADPCM_PRIVATE *pvox)
-{ short diff, error, stepsize, samp ;
-
- stepsize = step_size_table [pvox->step_index] ;
-
- error = stepsize / 8 ;
-
- if (code & 0x01)
- error += stepsize / 4 ;
-
- if (code & 0x02)
- error += stepsize / 2 ;
-
- if (code & 0x04)
- error += stepsize ;
-
- diff = (code & 0x08) ? -error : error ;
- samp = pvox->last + diff ;
-
- /*
- ** Apply clipping.
- */
- if (samp > 2048)
- samp = 2048 ;
- if (samp < -2048)
- samp = -2048 ;
-
- pvox->last = samp ;
- pvox->step_index += step_adjust_table [code & 0x7] ;
-
- if (pvox->step_index < 0)
- pvox->step_index = 0 ;
- if (pvox->step_index > 48)
- pvox->step_index = 48 ;
-
- return samp ;
-} /* vox_adpcm_decode */
-
-static int
-vox_adpcm_encode_block (VOX_ADPCM_PRIVATE *pvox)
-{ unsigned char code ;
- int j, k ;
-
- /* If data_count is odd, add an extra zero valued sample. */
- if (pvox->pcm_samples & 1)
- pvox->pcm_data [pvox->pcm_samples++] = 0 ;
-
- for (j = k = 0 ; k < pvox->pcm_samples ; j++)
- { code = vox_adpcm_encode (pvox->pcm_data [k++] / 16, pvox) << 4 ;
- code |= vox_adpcm_encode (pvox->pcm_data [k++] / 16, pvox) ;
- pvox->vox_data [j] = code ;
- } ;
-
- pvox->vox_bytes = j ;
-
- return 0 ;
-} /* vox_adpcm_encode_block */
-
-static int
-vox_adpcm_decode_block (VOX_ADPCM_PRIVATE *pvox)
-{ unsigned char code ;
- int j, k ;
-
- for (j = k = 0 ; j < pvox->vox_bytes ; j++)
- { code = pvox->vox_data [j] ;
- pvox->pcm_data [k++] = 16 * vox_adpcm_decode ((code >> 4) & 0x0f, pvox) ;
- pvox->pcm_data [k++] = 16 * vox_adpcm_decode (code & 0x0f, pvox) ;
- } ;
-
- pvox->pcm_samples = k ;
-
- return 0 ;
-} /* vox_adpcm_decode_block */
-
-/*==============================================================================
-*/
-
-static int
-vox_read_block (SF_PRIVATE *psf, VOX_ADPCM_PRIVATE *pvox, short *ptr, int len)
-{ int indx = 0, k ;
-
- while (indx < len)
- { pvox->vox_bytes = (len - indx > PCM_DATA_LEN) ? VOX_DATA_LEN : (len - indx + 1) / 2 ;
-
- if ((k = psf_fread (pvox->vox_data, 1, pvox->vox_bytes, psf)) != pvox->vox_bytes)
- { if (psf_ftell (psf) + k != psf->filelength)
- psf_log_printf (psf, "*** Warning : short read (%d != %d).\n", k, pvox->vox_bytes) ;
- if (k == 0)
- break ;
- } ;
-
- pvox->vox_bytes = k ;
-
- vox_adpcm_decode_block (pvox) ;
-
- memcpy (&(ptr [indx]), pvox->pcm_data, pvox->pcm_samples * sizeof (short)) ;
- indx += pvox->pcm_samples ;
- } ;
-
- return indx ;
-} /* vox_read_block */
-
-
-static sf_count_t
-vox_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len)
-{ VOX_ADPCM_PRIVATE *pvox ;
- int readcount, count ;
- sf_count_t total = 0 ;
-
- if (! psf->fdata)
- return 0 ;
- pvox = (VOX_ADPCM_PRIVATE*) psf->fdata ;
-
- while (len > 0)
- { readcount = (len > 0x10000000) ? 0x10000000 : (int) len ;
-
- count = vox_read_block (psf, pvox, ptr, readcount) ;
-
- total += count ;
- len -= count ;
- if (count != readcount)
- break ;
- } ;
-
- return total ;
-} /* vox_read_s */
-
-static sf_count_t
-vox_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len)
-{ VOX_ADPCM_PRIVATE *pvox ;
- short *sptr ;
- int k, bufferlen, readcount, count ;
- sf_count_t total = 0 ;
-
- if (! psf->fdata)
- return 0 ;
- pvox = (VOX_ADPCM_PRIVATE*) psf->fdata ;
-
- sptr = psf->u.sbuf ;
- bufferlen = ARRAY_LEN (psf->u.sbuf) ;
- while (len > 0)
- { readcount = (len >= bufferlen) ? bufferlen : (int) len ;
- count = vox_read_block (psf, pvox, sptr, readcount) ;
- for (k = 0 ; k < readcount ; k++)
- ptr [total + k] = ((int) sptr [k]) << 16 ;
- total += count ;
- len -= readcount ;
- if (count != readcount)
- break ;
- } ;
-
- return total ;
-} /* vox_read_i */
-
-static sf_count_t
-vox_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len)
-{ VOX_ADPCM_PRIVATE *pvox ;
- short *sptr ;
- int k, bufferlen, readcount, count ;
- sf_count_t total = 0 ;
- float normfact ;
-
- if (! psf->fdata)
- return 0 ;
- pvox = (VOX_ADPCM_PRIVATE*) psf->fdata ;
-
- normfact = (psf->norm_float == SF_TRUE) ? 1.0 / ((float) 0x8000) : 1.0 ;
-
- sptr = psf->u.sbuf ;
- bufferlen = ARRAY_LEN (psf->u.sbuf) ;
- while (len > 0)
- { readcount = (len >= bufferlen) ? bufferlen : (int) len ;
- count = vox_read_block (psf, pvox, sptr, readcount) ;
- for (k = 0 ; k < readcount ; k++)
- ptr [total + k] = normfact * (float) (sptr [k]) ;
- total += count ;
- len -= readcount ;
- if (count != readcount)
- break ;
- } ;
-
- return total ;
-} /* vox_read_f */
-
-static sf_count_t
-vox_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len)
-{ VOX_ADPCM_PRIVATE *pvox ;
- short *sptr ;
- int k, bufferlen, readcount, count ;
- sf_count_t total = 0 ;
- double normfact ;
-
- if (! psf->fdata)
- return 0 ;
- pvox = (VOX_ADPCM_PRIVATE*) psf->fdata ;
-
- normfact = (psf->norm_double == SF_TRUE) ? 1.0 / ((double) 0x8000) : 1.0 ;
-
- sptr = psf->u.sbuf ;
- bufferlen = ARRAY_LEN (psf->u.sbuf) ;
- while (len > 0)
- { readcount = (len >= bufferlen) ? bufferlen : (int) len ;
- count = vox_read_block (psf, pvox, sptr, readcount) ;
- for (k = 0 ; k < readcount ; k++)
- ptr [total + k] = normfact * (double) (sptr [k]) ;
- total += count ;
- len -= readcount ;
- if (count != readcount)
- break ;
- } ;
-
- return total ;
-} /* vox_read_d */
-
-/*------------------------------------------------------------------------------
-*/
-
-static int
-vox_write_block (SF_PRIVATE *psf, VOX_ADPCM_PRIVATE *pvox, const short *ptr, int len)
-{ int indx = 0, k ;
-
- while (indx < len)
- { pvox->pcm_samples = (len - indx > PCM_DATA_LEN) ? PCM_DATA_LEN : len - indx ;
-
- memcpy (pvox->pcm_data, &(ptr [indx]), pvox->pcm_samples * sizeof (short)) ;
-
- vox_adpcm_encode_block (pvox) ;
-
- if ((k = psf_fwrite (pvox->vox_data, 1, pvox->vox_bytes, psf)) != pvox->vox_bytes)
- psf_log_printf (psf, "*** Warning : short read (%d != %d).\n", k, pvox->vox_bytes) ;
-
- indx += pvox->pcm_samples ;
- } ;
-
- return indx ;
-} /* vox_write_block */
-
-static sf_count_t
-vox_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len)
-{ VOX_ADPCM_PRIVATE *pvox ;
- int writecount, count ;
- sf_count_t total = 0 ;
-
- if (! psf->fdata)
- return 0 ;
- pvox = (VOX_ADPCM_PRIVATE*) psf->fdata ;
-
- while (len)
- { writecount = (len > 0x10000000) ? 0x10000000 : (int) len ;
-
- count = vox_write_block (psf, pvox, ptr, writecount) ;
-
- total += count ;
- len -= count ;
- if (count != writecount)
- break ;
- } ;
-
- return total ;
-} /* vox_write_s */
-
-static sf_count_t
-vox_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len)
-{ VOX_ADPCM_PRIVATE *pvox ;
- short *sptr ;
- int k, bufferlen, writecount, count ;
- sf_count_t total = 0 ;
-
- if (! psf->fdata)
- return 0 ;
- pvox = (VOX_ADPCM_PRIVATE*) psf->fdata ;
-
- sptr = psf->u.sbuf ;
- bufferlen = ARRAY_LEN (psf->u.sbuf) ;
- while (len > 0)
- { writecount = (len >= bufferlen) ? bufferlen : (int) len ;
- for (k = 0 ; k < writecount ; k++)
- sptr [k] = ptr [total + k] >> 16 ;
- count = vox_write_block (psf, pvox, sptr, writecount) ;
- total += count ;
- len -= writecount ;
- if (count != writecount)
- break ;
- } ;
-
- return total ;
-} /* vox_write_i */
-
-static sf_count_t
-vox_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len)
-{ VOX_ADPCM_PRIVATE *pvox ;
- short *sptr ;
- int k, bufferlen, writecount, count ;
- sf_count_t total = 0 ;
- float normfact ;
-
- if (! psf->fdata)
- return 0 ;
- pvox = (VOX_ADPCM_PRIVATE*) psf->fdata ;
-
- normfact = (psf->norm_float == SF_TRUE) ? (1.0 * 0x7FFF) : 1.0 ;
-
- sptr = psf->u.sbuf ;
- bufferlen = ARRAY_LEN (psf->u.sbuf) ;
- while (len > 0)
- { writecount = (len >= bufferlen) ? bufferlen : (int) len ;
- for (k = 0 ; k < writecount ; k++)
- sptr [k] = lrintf (normfact * ptr [total + k]) ;
- count = vox_write_block (psf, pvox, sptr, writecount) ;
- total += count ;
- len -= writecount ;
- if (count != writecount)
- break ;
- } ;
-
- return total ;
-} /* vox_write_f */
-
-static sf_count_t
-vox_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len)
-{ VOX_ADPCM_PRIVATE *pvox ;
- short *sptr ;
- int k, bufferlen, writecount, count ;
- sf_count_t total = 0 ;
- double normfact ;
-
- if (! psf->fdata)
- return 0 ;
- pvox = (VOX_ADPCM_PRIVATE*) psf->fdata ;
-
- normfact = (psf->norm_double == SF_TRUE) ? (1.0 * 0x7FFF) : 1.0 ;
-
- sptr = psf->u.sbuf ;
- bufferlen = ARRAY_LEN (psf->u.sbuf) ;
- while (len > 0)
- { writecount = (len >= bufferlen) ? bufferlen : (int) len ;
- for (k = 0 ; k < writecount ; k++)
- sptr [k] = lrint (normfact * ptr [total + k]) ;
- count = vox_write_block (psf, pvox, sptr, writecount) ;
- total += count ;
- len -= writecount ;
- if (count != writecount)
- break ;
- } ;
-
- return total ;
-} /* vox_write_d */
-
-
-/*
-** 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: e15e97fe-ff9d-4b46-a489-7059fb2d0b1e
-*/