--- /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