cannam@85: /* cannam@85: ** Copyright (C) 1999-2011 Erik de Castro Lopo cannam@85: ** cannam@85: ** This program is free software; you can redistribute it and/or modify cannam@85: ** it under the terms of the GNU General Public License as published by cannam@85: ** the Free Software Foundation; either version 2 of the License, or cannam@85: ** (at your option) any later version. cannam@85: ** cannam@85: ** This program is distributed in the hope that it will be useful, cannam@85: ** but WITHOUT ANY WARRANTY; without even the implied warranty of cannam@85: ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the cannam@85: ** GNU General Public License for more details. cannam@85: ** cannam@85: ** You should have received a copy of the GNU General Public License cannam@85: ** along with this program; if not, write to the Free Software cannam@85: ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. cannam@85: */ cannam@85: cannam@85: #include "sfconfig.h" cannam@85: cannam@85: #include cannam@85: #include cannam@85: cannam@85: #include cannam@85: #include cannam@85: #include cannam@85: #include cannam@85: #include cannam@85: cannam@85: #include cannam@85: cannam@85: #include "utils.h" cannam@85: cannam@85: static void vio_test (const char *fname, int format) ; cannam@85: cannam@85: int cannam@85: main (void) cannam@85: { cannam@85: vio_test ("vio_pcm16.wav", SF_FORMAT_WAV | SF_FORMAT_PCM_16) ; cannam@85: vio_test ("vio_pcm24.aiff", SF_FORMAT_AIFF | SF_FORMAT_PCM_24) ; cannam@85: vio_test ("vio_float.au", SF_FORMAT_AU | SF_FORMAT_FLOAT) ; cannam@85: vio_test ("vio_pcm24.paf", SF_FORMAT_PAF | SF_FORMAT_PCM_24) ; cannam@85: cannam@85: return 0 ; cannam@85: } /* main */ cannam@85: cannam@85: /*============================================================================== cannam@85: */ cannam@85: cannam@85: typedef struct cannam@85: { sf_count_t offset, length ; cannam@85: unsigned char data [16 * 1024] ; cannam@85: } VIO_DATA ; cannam@85: cannam@85: static sf_count_t cannam@85: vfget_filelen (void *user_data) cannam@85: { VIO_DATA *vf = (VIO_DATA *) user_data ; cannam@85: cannam@85: return vf->length ; cannam@85: } /* vfget_filelen */ cannam@85: cannam@85: static sf_count_t cannam@85: vfseek (sf_count_t offset, int whence, void *user_data) cannam@85: { VIO_DATA *vf = (VIO_DATA *) user_data ; cannam@85: cannam@85: switch (whence) cannam@85: { case SEEK_SET : cannam@85: vf->offset = offset ; cannam@85: break ; cannam@85: cannam@85: case SEEK_CUR : cannam@85: vf->offset = vf->offset + offset ; cannam@85: break ; cannam@85: cannam@85: case SEEK_END : cannam@85: vf->offset = vf->length + offset ; cannam@85: break ; cannam@85: default : cannam@85: break ; cannam@85: } ; cannam@85: cannam@85: return vf->offset ; cannam@85: } /* vfseek */ cannam@85: cannam@85: static sf_count_t cannam@85: vfread (void *ptr, sf_count_t count, void *user_data) cannam@85: { VIO_DATA *vf = (VIO_DATA *) user_data ; cannam@85: cannam@85: /* cannam@85: ** This will brack badly for files over 2Gig in length, but cannam@85: ** is sufficient for testing. cannam@85: */ cannam@85: if (vf->offset + count > vf->length) cannam@85: count = vf->length - vf->offset ; cannam@85: cannam@85: memcpy (ptr, vf->data + vf->offset, count) ; cannam@85: vf->offset += count ; cannam@85: cannam@85: return count ; cannam@85: } /* vfread */ cannam@85: cannam@85: static sf_count_t cannam@85: vfwrite (const void *ptr, sf_count_t count, void *user_data) cannam@85: { VIO_DATA *vf = (VIO_DATA *) user_data ; cannam@85: cannam@85: /* cannam@85: ** This will break badly for files over 2Gig in length, but cannam@85: ** is sufficient for testing. cannam@85: */ cannam@85: if (vf->offset >= SIGNED_SIZEOF (vf->data)) cannam@85: return 0 ; cannam@85: cannam@85: if (vf->offset + count > SIGNED_SIZEOF (vf->data)) cannam@85: count = sizeof (vf->data) - vf->offset ; cannam@85: cannam@85: memcpy (vf->data + vf->offset, ptr, (size_t) count) ; cannam@85: vf->offset += count ; cannam@85: cannam@85: if (vf->offset > vf->length) cannam@85: vf->length = vf->offset ; cannam@85: cannam@85: return count ; cannam@85: } /* vfwrite */ cannam@85: cannam@85: static sf_count_t cannam@85: vftell (void *user_data) cannam@85: { VIO_DATA *vf = (VIO_DATA *) user_data ; cannam@85: cannam@85: return vf->offset ; cannam@85: } /* vftell */ cannam@85: cannam@85: cannam@85: /*============================================================================== cannam@85: */ cannam@85: cannam@85: static void cannam@85: gen_short_data (short * data, int len, int start) cannam@85: { int k ; cannam@85: cannam@85: for (k = 0 ; k < len ; k++) cannam@85: data [k] = start + k ; cannam@85: } /* gen_short_data */ cannam@85: cannam@85: cannam@85: static void cannam@85: check_short_data (short * data, int len, int start, int line) cannam@85: { int k ; cannam@85: cannam@85: for (k = 0 ; k < len ; k++) cannam@85: if (data [k] != start + k) cannam@85: { printf ("\n\nLine %d : data [%d] = %d (should be %d).\n\n", line, k, data [k], start + k) ; cannam@85: exit (1) ; cannam@85: } ; cannam@85: } /* gen_short_data */ cannam@85: cannam@85: /*------------------------------------------------------------------------------ cannam@85: */ cannam@85: cannam@85: static void cannam@85: vio_test (const char *fname, int format) cannam@85: { static VIO_DATA vio_data ; cannam@85: static short data [256] ; cannam@85: cannam@85: SF_VIRTUAL_IO vio ; cannam@85: SNDFILE * file ; cannam@85: SF_INFO sfinfo ; cannam@85: cannam@85: print_test_name ("virtual i/o test", fname) ; cannam@85: cannam@85: /* Set up pointers to the locally defined functions. */ cannam@85: vio.get_filelen = vfget_filelen ; cannam@85: vio.seek = vfseek ; cannam@85: vio.read = vfread ; cannam@85: vio.write = vfwrite ; cannam@85: vio.tell = vftell ; cannam@85: cannam@85: /* Set virtual file offset and length to zero. */ cannam@85: vio_data.offset = 0 ; cannam@85: vio_data.length = 0 ; cannam@85: cannam@85: memset (&sfinfo, 0, sizeof (sfinfo)) ; cannam@85: sfinfo.format = format ; cannam@85: sfinfo.channels = 2 ; cannam@85: sfinfo.samplerate = 44100 ; cannam@85: cannam@85: if ((file = sf_open_virtual (&vio, SFM_WRITE, &sfinfo, &vio_data)) == NULL) cannam@85: { printf ("\n\nLine %d : sf_open_write failed with error : ", __LINE__) ; cannam@85: fflush (stdout) ; cannam@85: puts (sf_strerror (NULL)) ; cannam@85: exit (1) ; cannam@85: } ; cannam@85: cannam@85: if (vfget_filelen (&vio_data) < 0) cannam@85: { printf ("\n\nLine %d : vfget_filelen returned negative length.\n\n", __LINE__) ; cannam@85: exit (1) ; cannam@85: } ; cannam@85: cannam@85: gen_short_data (data, ARRAY_LEN (data), 0) ; cannam@85: sf_write_short (file, data, ARRAY_LEN (data)) ; cannam@85: cannam@85: gen_short_data (data, ARRAY_LEN (data), 1) ; cannam@85: sf_write_short (file, data, ARRAY_LEN (data)) ; cannam@85: cannam@85: gen_short_data (data, ARRAY_LEN (data), 2) ; cannam@85: sf_write_short (file, data, ARRAY_LEN (data)) ; cannam@85: cannam@85: sf_close (file) ; cannam@85: cannam@85: /* Now test read. */ cannam@85: memset (&sfinfo, 0, sizeof (sfinfo)) ; cannam@85: cannam@85: vio_data.offset = 0 ; cannam@85: cannam@85: if ((file = sf_open_virtual (&vio, SFM_READ, &sfinfo, &vio_data)) == NULL) cannam@85: { printf ("\n\nLine %d : sf_open_write failed with error : ", __LINE__) ; cannam@85: fflush (stdout) ; cannam@85: puts (sf_strerror (NULL)) ; cannam@85: cannam@85: dump_data_to_file (fname, vio_data.data, vio_data.length) ; cannam@85: exit (1) ; cannam@85: } ; cannam@85: cannam@85: cannam@85: sf_read_short (file, data, ARRAY_LEN (data)) ; cannam@85: check_short_data (data, ARRAY_LEN (data), 0, __LINE__) ; cannam@85: cannam@85: sf_read_short (file, data, ARRAY_LEN (data)) ; cannam@85: check_short_data (data, ARRAY_LEN (data), 1, __LINE__) ; cannam@85: cannam@85: sf_read_short (file, data, ARRAY_LEN (data)) ; cannam@85: check_short_data (data, ARRAY_LEN (data), 2, __LINE__) ; cannam@85: cannam@85: sf_close (file) ; cannam@85: cannam@85: puts ("ok") ; cannam@85: } /* vio_test */ cannam@85: