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https://gitee.com/openharmony/third_party_libsnd
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113 lines
2.9 KiB
C
113 lines
2.9 KiB
C
/*
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** Copyright (C) 2002-2009 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 <math.h>
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <sndfile.h>
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#include "utils.h"
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#define BUFFER_SIZE (10000)
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#ifndef M_PI
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#define M_PI 3.14159265358979323846264338
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#endif
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static void dwvw_test (const char *filename, int format, int bit_width) ;
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int
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main (void)
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{
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dwvw_test ("dwvw12.raw", SF_FORMAT_RAW | SF_FORMAT_DWVW_12, 12) ;
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dwvw_test ("dwvw16.raw", SF_FORMAT_RAW | SF_FORMAT_DWVW_16, 16) ;
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dwvw_test ("dwvw24.raw", SF_FORMAT_RAW | SF_FORMAT_DWVW_24, 24) ;
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return 0 ;
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} /* main */
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static void
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dwvw_test (const char *filename, int format, int bit_width)
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{ static int write_buf [BUFFER_SIZE] ;
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static int read_buf [BUFFER_SIZE] ;
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SNDFILE *file ;
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SF_INFO sfinfo ;
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double value ;
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int k, bit_mask ;
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srand (123456) ;
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/* Only want to grab the top bit_width bits. */
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bit_mask = (-1 << (32 - bit_width)) ;
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print_test_name ("dwvw_test", filename) ;
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sfinfo.format = format ;
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sfinfo.samplerate = 44100 ;
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sfinfo.frames = -1 ; /* Unknown! */
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sfinfo.channels = 1 ;
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file = test_open_file_or_die (filename, SFM_WRITE, &sfinfo, SF_TRUE, __LINE__) ;
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/* Generate random.frames. */
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k = 0 ;
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for (k = 0 ; k < BUFFER_SIZE / 2 ; k++)
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{ value = 0x7FFFFFFF * sin (123.0 / sfinfo.samplerate * 2 * k * M_PI) ;
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write_buf [k] = bit_mask & lrint (value) ;
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} ;
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for ( ; k < BUFFER_SIZE ; k++)
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write_buf [k] = bit_mask & ((rand () << 11) ^ (rand () >> 11)) ;
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sf_write_int (file, write_buf, BUFFER_SIZE) ;
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sf_close (file) ;
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file = test_open_file_or_die (filename, SFM_READ, &sfinfo, SF_TRUE, __LINE__) ;
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if ((k = sf_read_int (file, read_buf, BUFFER_SIZE)) != BUFFER_SIZE)
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{ printf ("Error (line %d) : Only read %d/%d.frames.\n", __LINE__, k, BUFFER_SIZE) ;
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exit (1) ;
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}
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for (k = 0 ; k < BUFFER_SIZE ; k++)
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{ if (read_buf [k] != write_buf [k])
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{ printf ("Error (line %d) : %d != %d at position %d/%d\n", __LINE__,
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write_buf [k] >> (32 - bit_width), read_buf [k] >> (32 - bit_width),
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k, BUFFER_SIZE) ;
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oct_save_int (write_buf, read_buf, BUFFER_SIZE) ;
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exit (1) ;
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} ;
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} ;
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sf_close (file) ;
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unlink (filename) ;
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printf ("ok\n") ;
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return ;
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} /* dwvw_test */
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