+++ /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 <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-#include "sndfile.h"
-#include "sfendian.h"
-#include "common.h"
-#include "wav_w64.h"
-#include "GSM610/gsm.h"
-
-#define GSM610_BLOCKSIZE 33
-#define GSM610_SAMPLES 160
-
-typedef struct gsm610_tag
-{ int blocks ;
- int blockcount, samplecount ;
- int samplesperblock, blocksize ;
-
- int (*decode_block) (SF_PRIVATE *psf, struct gsm610_tag *pgsm610) ;
- int (*encode_block) (SF_PRIVATE *psf, struct gsm610_tag *pgsm610) ;
-
- short samples [WAV_W64_GSM610_SAMPLES] ;
- unsigned char block [WAV_W64_GSM610_BLOCKSIZE] ;
-
- /* Damn I hate typedef-ed pointers; yes, gsm is a pointer type. */
- gsm gsm_data ;
-} GSM610_PRIVATE ;
-
-static sf_count_t gsm610_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ;
-static sf_count_t gsm610_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ;
-static sf_count_t gsm610_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ;
-static sf_count_t gsm610_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ;
-
-static sf_count_t gsm610_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ;
-static sf_count_t gsm610_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ;
-static sf_count_t gsm610_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ;
-static sf_count_t gsm610_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ;
-
-static int gsm610_read_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610, short *ptr, int len) ;
-static int gsm610_write_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610, const short *ptr, int len) ;
-
-static int gsm610_decode_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610) ;
-static int gsm610_encode_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610) ;
-
-static int gsm610_wav_decode_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610) ;
-static int gsm610_wav_encode_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610) ;
-
-static sf_count_t gsm610_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) ;
-
-static int gsm610_close (SF_PRIVATE *psf) ;
-
-/*============================================================================================
-** WAV GSM610 initialisation function.
-*/
-
-int
-gsm610_init (SF_PRIVATE *psf)
-{ GSM610_PRIVATE *pgsm610 ;
- int true_flag = 1 ;
-
- if (psf->codec_data != NULL)
- { psf_log_printf (psf, "*** psf->codec_data is not NULL.\n") ;
- return SFE_INTERNAL ;
- } ;
-
- if (psf->file.mode == SFM_RDWR)
- return SFE_BAD_MODE_RW ;
-
- psf->sf.seekable = SF_FALSE ;
-
- if ((pgsm610 = calloc (1, sizeof (GSM610_PRIVATE))) == NULL)
- return SFE_MALLOC_FAILED ;
-
- psf->codec_data = pgsm610 ;
-
- memset (pgsm610, 0, sizeof (GSM610_PRIVATE)) ;
-
-/*============================================================
-
-Need separate gsm_data structs for encode and decode.
-
-============================================================*/
-
- if ((pgsm610->gsm_data = gsm_create ()) == NULL)
- return SFE_MALLOC_FAILED ;
-
- switch (SF_CONTAINER (psf->sf.format))
- { case SF_FORMAT_WAV :
- case SF_FORMAT_WAVEX :
- case SF_FORMAT_W64 :
- gsm_option (pgsm610->gsm_data, GSM_OPT_WAV49, &true_flag) ;
-
- pgsm610->encode_block = gsm610_wav_encode_block ;
- pgsm610->decode_block = gsm610_wav_decode_block ;
-
- pgsm610->samplesperblock = WAV_W64_GSM610_SAMPLES ;
- pgsm610->blocksize = WAV_W64_GSM610_BLOCKSIZE ;
- break ;
-
- case SF_FORMAT_AIFF :
- case SF_FORMAT_RAW :
- pgsm610->encode_block = gsm610_encode_block ;
- pgsm610->decode_block = gsm610_decode_block ;
-
- pgsm610->samplesperblock = GSM610_SAMPLES ;
- pgsm610->blocksize = GSM610_BLOCKSIZE ;
- break ;
-
- default :
- return SFE_INTERNAL ;
- break ;
- } ;
-
- if (psf->file.mode == SFM_READ)
- { if (psf->datalength % pgsm610->blocksize == 0)
- pgsm610->blocks = psf->datalength / pgsm610->blocksize ;
- else if (psf->datalength % pgsm610->blocksize == 1 && pgsm610->blocksize == GSM610_BLOCKSIZE)
- { /*
- ** Weird AIFF specific case.
- ** AIFF chunks must be at an even offset from the start of file and
- ** GSM610_BLOCKSIZE is odd which can result in an odd length SSND
- ** chunk. The SSND chunk then gets padded on write which means that
- ** when it is read the datalength is too big by 1.
- */
- pgsm610->blocks = psf->datalength / pgsm610->blocksize ;
- }
- else
- { psf_log_printf (psf, "*** Warning : data chunk seems to be truncated.\n") ;
- pgsm610->blocks = psf->datalength / pgsm610->blocksize + 1 ;
- } ;
-
- psf->sf.frames = pgsm610->samplesperblock * pgsm610->blocks ;
-
- psf_fseek (psf, psf->dataoffset, SEEK_SET) ;
-
- pgsm610->decode_block (psf, pgsm610) ; /* Read first block. */
-
- psf->read_short = gsm610_read_s ;
- psf->read_int = gsm610_read_i ;
- psf->read_float = gsm610_read_f ;
- psf->read_double = gsm610_read_d ;
- } ;
-
- if (psf->file.mode == SFM_WRITE)
- { pgsm610->blockcount = 0 ;
- pgsm610->samplecount = 0 ;
-
- psf->write_short = gsm610_write_s ;
- psf->write_int = gsm610_write_i ;
- psf->write_float = gsm610_write_f ;
- psf->write_double = gsm610_write_d ;
- } ;
-
- psf->codec_close = gsm610_close ;
-
- psf->seek = gsm610_seek ;
-
- psf->filelength = psf_get_filelen (psf) ;
- psf->datalength = psf->filelength - psf->dataoffset ;
-
- return 0 ;
-} /* gsm610_init */
-
-/*============================================================================================
-** GSM 6.10 Read Functions.
-*/
-
-static int
-gsm610_wav_decode_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610)
-{ int k ;
-
- pgsm610->blockcount ++ ;
- pgsm610->samplecount = 0 ;
-
- if (pgsm610->blockcount > pgsm610->blocks)
- { memset (pgsm610->samples, 0, WAV_W64_GSM610_SAMPLES * sizeof (short)) ;
- return 1 ;
- } ;
-
- if ((k = psf_fread (pgsm610->block, 1, WAV_W64_GSM610_BLOCKSIZE, psf)) != WAV_W64_GSM610_BLOCKSIZE)
- psf_log_printf (psf, "*** Warning : short read (%d != %d).\n", k, WAV_W64_GSM610_BLOCKSIZE) ;
-
- if (gsm_decode (pgsm610->gsm_data, pgsm610->block, pgsm610->samples) < 0)
- { psf_log_printf (psf, "Error from WAV gsm_decode() on frame : %d\n", pgsm610->blockcount) ;
- return 0 ;
- } ;
-
- if (gsm_decode (pgsm610->gsm_data, pgsm610->block + (WAV_W64_GSM610_BLOCKSIZE + 1) / 2, pgsm610->samples + WAV_W64_GSM610_SAMPLES / 2) < 0)
- { psf_log_printf (psf, "Error from WAV gsm_decode() on frame : %d.5\n", pgsm610->blockcount) ;
- return 0 ;
- } ;
-
- return 1 ;
-} /* gsm610_wav_decode_block */
-
-static int
-gsm610_decode_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610)
-{ int k ;
-
- pgsm610->blockcount ++ ;
- pgsm610->samplecount = 0 ;
-
- if (pgsm610->blockcount > pgsm610->blocks)
- { memset (pgsm610->samples, 0, GSM610_SAMPLES * sizeof (short)) ;
- return 1 ;
- } ;
-
- if ((k = psf_fread (pgsm610->block, 1, GSM610_BLOCKSIZE, psf)) != GSM610_BLOCKSIZE)
- psf_log_printf (psf, "*** Warning : short read (%d != %d).\n", k, GSM610_BLOCKSIZE) ;
-
- if (gsm_decode (pgsm610->gsm_data, pgsm610->block, pgsm610->samples) < 0)
- { psf_log_printf (psf, "Error from standard gsm_decode() on frame : %d\n", pgsm610->blockcount) ;
- return 0 ;
- } ;
-
- return 1 ;
-} /* gsm610_decode_block */
-
-static int
-gsm610_read_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610, short *ptr, int len)
-{ int count, total = 0, indx = 0 ;
-
- while (indx < len)
- { if (pgsm610->blockcount >= pgsm610->blocks && pgsm610->samplecount >= pgsm610->samplesperblock)
- { memset (&(ptr [indx]), 0, (len - indx) * sizeof (short)) ;
- return total ;
- } ;
-
- if (pgsm610->samplecount >= pgsm610->samplesperblock)
- pgsm610->decode_block (psf, pgsm610) ;
-
- count = pgsm610->samplesperblock - pgsm610->samplecount ;
- count = (len - indx > count) ? count : len - indx ;
-
- memcpy (&(ptr [indx]), &(pgsm610->samples [pgsm610->samplecount]), count * sizeof (short)) ;
- indx += count ;
- pgsm610->samplecount += count ;
- total = indx ;
- } ;
-
- return total ;
-} /* gsm610_read_block */
-
-static sf_count_t
-gsm610_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len)
-{ GSM610_PRIVATE *pgsm610 ;
- int readcount, count ;
- sf_count_t total = 0 ;
-
- if (psf->codec_data == NULL)
- return 0 ;
- pgsm610 = (GSM610_PRIVATE*) psf->codec_data ;
-
- while (len > 0)
- { readcount = (len > 0x10000000) ? 0x1000000 : (int) len ;
-
- count = gsm610_read_block (psf, pgsm610, ptr, readcount) ;
-
- total += count ;
- len -= count ;
-
- if (count != readcount)
- break ;
- } ;
-
- return total ;
-} /* gsm610_read_s */
-
-static sf_count_t
-gsm610_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len)
-{ GSM610_PRIVATE *pgsm610 ;
- short *sptr ;
- int k, bufferlen, readcount = 0, count ;
- sf_count_t total = 0 ;
-
- if (psf->codec_data == NULL)
- return 0 ;
- pgsm610 = (GSM610_PRIVATE*) psf->codec_data ;
-
- sptr = psf->u.sbuf ;
- bufferlen = ARRAY_LEN (psf->u.sbuf) ;
- while (len > 0)
- { readcount = (len >= bufferlen) ? bufferlen : len ;
- count = gsm610_read_block (psf, pgsm610, sptr, readcount) ;
- for (k = 0 ; k < readcount ; k++)
- ptr [total + k] = sptr [k] << 16 ;
-
- total += count ;
- len -= readcount ;
- } ;
- return total ;
-} /* gsm610_read_i */
-
-static sf_count_t
-gsm610_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len)
-{ GSM610_PRIVATE *pgsm610 ;
- short *sptr ;
- int k, bufferlen, readcount = 0, count ;
- sf_count_t total = 0 ;
- float normfact ;
-
- if (psf->codec_data == NULL)
- return 0 ;
- pgsm610 = (GSM610_PRIVATE*) psf->codec_data ;
-
- 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 : len ;
- count = gsm610_read_block (psf, pgsm610, sptr, readcount) ;
- for (k = 0 ; k < readcount ; k++)
- ptr [total + k] = normfact * sptr [k] ;
-
- total += count ;
- len -= readcount ;
- } ;
- return total ;
-} /* gsm610_read_f */
-
-static sf_count_t
-gsm610_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len)
-{ GSM610_PRIVATE *pgsm610 ;
- short *sptr ;
- int k, bufferlen, readcount = 0, count ;
- sf_count_t total = 0 ;
- double normfact ;
-
- normfact = (psf->norm_double == SF_TRUE) ? 1.0 / ((double) 0x8000) : 1.0 ;
-
- if (psf->codec_data == NULL)
- return 0 ;
- pgsm610 = (GSM610_PRIVATE*) psf->codec_data ;
-
- sptr = psf->u.sbuf ;
- bufferlen = ARRAY_LEN (psf->u.sbuf) ;
- while (len > 0)
- { readcount = (len >= bufferlen) ? bufferlen : len ;
- count = gsm610_read_block (psf, pgsm610, sptr, readcount) ;
- for (k = 0 ; k < readcount ; k++)
- ptr [total + k] = normfact * sptr [k] ;
-
- total += count ;
- len -= readcount ;
- } ;
- return total ;
-} /* gsm610_read_d */
-
-static sf_count_t
-gsm610_seek (SF_PRIVATE *psf, int UNUSED (mode), sf_count_t offset)
-{ GSM610_PRIVATE *pgsm610 ;
- int newblock, newsample ;
-
- if (psf->codec_data == NULL)
- return 0 ;
- pgsm610 = (GSM610_PRIVATE*) psf->codec_data ;
-
- if (psf->dataoffset < 0)
- { psf->error = SFE_BAD_SEEK ;
- return PSF_SEEK_ERROR ;
- } ;
-
- if (offset == 0)
- { int true_flag = 1 ;
-
- psf_fseek (psf, psf->dataoffset, SEEK_SET) ;
- pgsm610->blockcount = 0 ;
-
- gsm_init (pgsm610->gsm_data) ;
- if ((SF_CONTAINER (psf->sf.format)) == SF_FORMAT_WAV ||
- (SF_CONTAINER (psf->sf.format)) == SF_FORMAT_W64)
- gsm_option (pgsm610->gsm_data, GSM_OPT_WAV49, &true_flag) ;
-
- pgsm610->decode_block (psf, pgsm610) ;
- pgsm610->samplecount = 0 ;
- return 0 ;
- } ;
-
- if (offset < 0 || offset > pgsm610->blocks * pgsm610->samplesperblock)
- { psf->error = SFE_BAD_SEEK ;
- return PSF_SEEK_ERROR ;
- } ;
-
- newblock = offset / pgsm610->samplesperblock ;
- newsample = offset % pgsm610->samplesperblock ;
-
- if (psf->file.mode == SFM_READ)
- { if (psf->read_current != newblock * pgsm610->samplesperblock + newsample)
- { psf_fseek (psf, psf->dataoffset + newblock * pgsm610->samplesperblock, SEEK_SET) ;
- pgsm610->blockcount = newblock ;
- pgsm610->decode_block (psf, pgsm610) ;
- pgsm610->samplecount = newsample ;
- } ;
-
- return newblock * pgsm610->samplesperblock + newsample ;
- } ;
-
- /* What to do about write??? */
- psf->error = SFE_BAD_SEEK ;
- return PSF_SEEK_ERROR ;
-} /* gsm610_seek */
-
-/*==========================================================================================
-** GSM 6.10 Write Functions.
-*/
-
-static int
-gsm610_encode_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610)
-{ int k ;
-
- /* Encode the samples. */
- gsm_encode (pgsm610->gsm_data, pgsm610->samples, pgsm610->block) ;
-
- /* Write the block to disk. */
- if ((k = psf_fwrite (pgsm610->block, 1, GSM610_BLOCKSIZE, psf)) != GSM610_BLOCKSIZE)
- psf_log_printf (psf, "*** Warning : short write (%d != %d).\n", k, GSM610_BLOCKSIZE) ;
-
- pgsm610->samplecount = 0 ;
- pgsm610->blockcount ++ ;
-
- /* Set samples to zero for next block. */
- memset (pgsm610->samples, 0, WAV_W64_GSM610_SAMPLES * sizeof (short)) ;
-
- return 1 ;
-} /* gsm610_encode_block */
-
-static int
-gsm610_wav_encode_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610)
-{ int k ;
-
- /* Encode the samples. */
- gsm_encode (pgsm610->gsm_data, pgsm610->samples, pgsm610->block) ;
- gsm_encode (pgsm610->gsm_data, pgsm610->samples+WAV_W64_GSM610_SAMPLES/2, pgsm610->block+WAV_W64_GSM610_BLOCKSIZE/2) ;
-
- /* Write the block to disk. */
- if ((k = psf_fwrite (pgsm610->block, 1, WAV_W64_GSM610_BLOCKSIZE, psf)) != WAV_W64_GSM610_BLOCKSIZE)
- psf_log_printf (psf, "*** Warning : short write (%d != %d).\n", k, WAV_W64_GSM610_BLOCKSIZE) ;
-
- pgsm610->samplecount = 0 ;
- pgsm610->blockcount ++ ;
-
- /* Set samples to zero for next block. */
- memset (pgsm610->samples, 0, WAV_W64_GSM610_SAMPLES * sizeof (short)) ;
-
- return 1 ;
-} /* gsm610_wav_encode_block */
-
-static int
-gsm610_write_block (SF_PRIVATE *psf, GSM610_PRIVATE *pgsm610, const short *ptr, int len)
-{ int count, total = 0, indx = 0 ;
-
- while (indx < len)
- { count = pgsm610->samplesperblock - pgsm610->samplecount ;
-
- if (count > len - indx)
- count = len - indx ;
-
- memcpy (&(pgsm610->samples [pgsm610->samplecount]), &(ptr [indx]), count * sizeof (short)) ;
- indx += count ;
- pgsm610->samplecount += count ;
- total = indx ;
-
- if (pgsm610->samplecount >= pgsm610->samplesperblock)
- pgsm610->encode_block (psf, pgsm610) ;
- } ;
-
- return total ;
-} /* gsm610_write_block */
-
-static sf_count_t
-gsm610_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len)
-{ GSM610_PRIVATE *pgsm610 ;
- int writecount, count ;
- sf_count_t total = 0 ;
-
- if (psf->codec_data == NULL)
- return 0 ;
- pgsm610 = (GSM610_PRIVATE*) psf->codec_data ;
-
- while (len > 0)
- { writecount = (len > 0x10000000) ? 0x10000000 : (int) len ;
-
- count = gsm610_write_block (psf, pgsm610, ptr, writecount) ;
-
- total += count ;
- len -= count ;
-
- if (count != writecount)
- break ;
- } ;
-
- return total ;
-} /* gsm610_write_s */
-
-static sf_count_t
-gsm610_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len)
-{ GSM610_PRIVATE *pgsm610 ;
- short *sptr ;
- int k, bufferlen, writecount = 0, count ;
- sf_count_t total = 0 ;
-
- if (psf->codec_data == NULL)
- return 0 ;
- pgsm610 = (GSM610_PRIVATE*) psf->codec_data ;
-
- sptr = psf->u.sbuf ;
- bufferlen = ARRAY_LEN (psf->u.sbuf) ;
- while (len > 0)
- { writecount = (len >= bufferlen) ? bufferlen : len ;
- for (k = 0 ; k < writecount ; k++)
- sptr [k] = ptr [total + k] >> 16 ;
- count = gsm610_write_block (psf, pgsm610, sptr, writecount) ;
-
- total += count ;
- len -= writecount ;
- } ;
- return total ;
-} /* gsm610_write_i */
-
-static sf_count_t
-gsm610_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len)
-{ GSM610_PRIVATE *pgsm610 ;
- short *sptr ;
- int k, bufferlen, writecount = 0, count ;
- sf_count_t total = 0 ;
- float normfact ;
-
- if (psf->codec_data == NULL)
- return 0 ;
- pgsm610 = (GSM610_PRIVATE*) psf->codec_data ;
-
- 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 : len ;
- for (k = 0 ; k < writecount ; k++)
- sptr [k] = lrintf (normfact * ptr [total + k]) ;
- count = gsm610_write_block (psf, pgsm610, sptr, writecount) ;
-
- total += count ;
- len -= writecount ;
- } ;
- return total ;
-} /* gsm610_write_f */
-
-static sf_count_t
-gsm610_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len)
-{ GSM610_PRIVATE *pgsm610 ;
- short *sptr ;
- int k, bufferlen, writecount = 0, count ;
- sf_count_t total = 0 ;
- double normfact ;
-
- if (psf->codec_data == NULL)
- return 0 ;
- pgsm610 = (GSM610_PRIVATE*) psf->codec_data ;
-
- 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 : len ;
- for (k = 0 ; k < writecount ; k++)
- sptr [k] = lrint (normfact * ptr [total + k]) ;
- count = gsm610_write_block (psf, pgsm610, sptr, writecount) ;
-
- total += count ;
- len -= writecount ;
- } ;
- return total ;
-} /* gsm610_write_d */
-
-static int
-gsm610_close (SF_PRIVATE *psf)
-{ GSM610_PRIVATE *pgsm610 ;
-
- if (psf->codec_data == NULL)
- return 0 ;
-
- pgsm610 = (GSM610_PRIVATE*) psf->codec_data ;
-
- if (psf->file.mode == SFM_WRITE)
- { /* If a block has been partially assembled, write it out
- ** as the final block.
- */
-
- if (pgsm610->samplecount && pgsm610->samplecount < pgsm610->samplesperblock)
- pgsm610->encode_block (psf, pgsm610) ;
- } ;
-
- if (pgsm610->gsm_data)
- gsm_destroy (pgsm610->gsm_data) ;
-
- return 0 ;
-} /* gsm610_close */
-
projects / Faustine.git / blobdiff