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add libsndifle 1.0.17 to in tree libs
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@3761 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Michael Jerris
238
libs/libsndfile/tests/virtual_io_test.c
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238
libs/libsndfile/tests/virtual_io_test.c
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/*
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** Copyright (C) 1999-2005 Erik de Castro Lopo <erikd@mega-nerd.com>
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "sfconfig.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <math.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/stat.h>
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#include <sndfile.h>
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#include "utils.h"
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static void vio_test (const char *fname, int format) ;
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int
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main (void)
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{
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vio_test ("vio_pcm16.wav", SF_FORMAT_WAV | SF_FORMAT_PCM_16) ;
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vio_test ("vio_pcm24.aiff", SF_FORMAT_AIFF | SF_FORMAT_PCM_24) ;
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vio_test ("vio_float.au", SF_FORMAT_AU | SF_FORMAT_FLOAT) ;
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return 0 ;
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} /* main */
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/*==============================================================================
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*/
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typedef struct
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{ sf_count_t offset, length ;
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unsigned char data [16 * 1024] ;
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} VIO_DATA ;
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static sf_count_t
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vfget_filelen (void *user_data)
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{ VIO_DATA *vf = (VIO_DATA *) user_data ;
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return vf->length ;
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} /* vfget_filelen */
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static sf_count_t
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vfseek (sf_count_t offset, int whence, void *user_data)
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{ VIO_DATA *vf = (VIO_DATA *) user_data ;
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switch (whence)
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{ case SEEK_SET :
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vf->offset = offset ;
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break ;
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case SEEK_CUR :
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vf->offset = vf->offset + offset ;
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break ;
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case SEEK_END :
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vf->offset = vf->length + offset ;
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break ;
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default :
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break ;
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} ;
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return vf->offset ;
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} /* vfseek */
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static sf_count_t
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vfread (void *ptr, sf_count_t count, void *user_data)
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{ VIO_DATA *vf = (VIO_DATA *) user_data ;
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/*
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** This will brack badly for files over 2Gig in length, but
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** is sufficient for testing.
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*/
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if (vf->offset + count > vf->length)
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count = vf->length - vf->offset ;
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memcpy (ptr, vf->data + vf->offset, count) ;
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vf->offset += count ;
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return count ;
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} /* vfread */
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static sf_count_t
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vfwrite (const void *ptr, sf_count_t count, void *user_data)
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{ VIO_DATA *vf = (VIO_DATA *) user_data ;
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/*
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** This will break badly for files over 2Gig in length, but
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** is sufficient for testing.
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*/
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if (vf->offset >= SIGNED_SIZEOF (vf->data))
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return 0 ;
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if (vf->offset + count > SIGNED_SIZEOF (vf->data))
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count = sizeof (vf->data) - vf->offset ;
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memcpy (vf->data + vf->offset, ptr, (size_t) count) ;
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vf->offset += count ;
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if (vf->offset > vf->length)
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vf->length = vf->offset ;
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return count ;
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} /* vfwrite */
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static sf_count_t
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vftell (void *user_data)
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{ VIO_DATA *vf = (VIO_DATA *) user_data ;
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return vf->offset ;
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} /* vftell */
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/*==============================================================================
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*/
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static void
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gen_short_data (short * data, int len, int start)
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{ int k ;
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for (k = 0 ; k < len ; k++)
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data [k] = start + k ;
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} /* gen_short_data */
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static void
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check_short_data (short * data, int len, int start, int line)
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{ int k ;
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for (k = 0 ; k < len ; k++)
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if (data [k] != start + k)
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{ printf ("\n\nLine %d : data [%d] = %d (should be %d).\n\n", line, k, data [k], start + k) ;
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exit (1) ;
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} ;
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} /* gen_short_data */
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/*------------------------------------------------------------------------------
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*/
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static void
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vio_test (const char *fname, int format)
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{ static VIO_DATA vio_data ;
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static short data [256] ;
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SF_VIRTUAL_IO vio ;
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SNDFILE * file ;
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SF_INFO sfinfo ;
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print_test_name ("virtual i/o test", fname) ;
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/* Set up pointers to the locally defined functions. */
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vio.get_filelen = vfget_filelen ;
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vio.seek = vfseek ;
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vio.read = vfread ;
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vio.write = vfwrite ;
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vio.tell = vftell ;
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/* Set virtual file offset and length to zero. */
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vio_data.offset = 0 ;
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vio_data.length = 0 ;
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memset (&sfinfo, 0, sizeof (sfinfo)) ;
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sfinfo.format = format ;
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sfinfo.channels = 2 ;
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sfinfo.samplerate = 44100 ;
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if ((file = sf_open_virtual (&vio, SFM_WRITE, &sfinfo, &vio_data)) == NULL)
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{ printf ("\n\nLine %d : sf_open_write failed with error : ", __LINE__) ;
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fflush (stdout) ;
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puts (sf_strerror (NULL)) ;
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exit (1) ;
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} ;
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gen_short_data (data, ARRAY_LEN (data), 0) ;
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sf_write_short (file, data, ARRAY_LEN (data)) ;
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gen_short_data (data, ARRAY_LEN (data), 1) ;
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sf_write_short (file, data, ARRAY_LEN (data)) ;
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gen_short_data (data, ARRAY_LEN (data), 2) ;
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sf_write_short (file, data, ARRAY_LEN (data)) ;
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sf_close (file) ;
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/* Now test read. */
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memset (&sfinfo, 0, sizeof (sfinfo)) ;
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vio_data.offset = 0 ;
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if ((file = sf_open_virtual (&vio, SFM_READ, &sfinfo, &vio_data)) == NULL)
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{ printf ("\n\nLine %d : sf_open_write failed with error : ", __LINE__) ;
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fflush (stdout) ;
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puts (sf_strerror (NULL)) ;
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dump_data_to_file (fname, vio_data.data, vio_data.length) ;
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exit (1) ;
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} ;
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sf_read_short (file, data, ARRAY_LEN (data)) ;
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check_short_data (data, ARRAY_LEN (data), 0, __LINE__) ;
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sf_read_short (file, data, ARRAY_LEN (data)) ;
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check_short_data (data, ARRAY_LEN (data), 1, __LINE__) ;
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sf_read_short (file, data, ARRAY_LEN (data)) ;
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check_short_data (data, ARRAY_LEN (data), 2, __LINE__) ;
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sf_close (file) ;
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puts ("ok") ;
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} /* vio_test */
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/*
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** Do not edit or modify anything in this comment block.
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** The arch-tag line is a file identity tag for the GNU Arch
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** revision control system.
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**
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** arch-tag: 5569fa52-15dd-496f-ab47-1fd42d76195d
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*/
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