Chris@40: /* Chris@40: ** Copyright (C) 2001-2015 Erik de Castro Lopo Chris@40: ** Chris@40: ** This program is free software; you can redistribute it and/or modify Chris@40: ** it under the terms of the GNU General Public License as published by Chris@40: ** the Free Software Foundation; either version 2 of the License, or Chris@40: ** (at your option) any later version. Chris@40: ** Chris@40: ** This program is distributed in the hope that it will be useful, Chris@40: ** but WITHOUT ANY WARRANTY; without even the implied warranty of Chris@40: ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Chris@40: ** GNU General Public License for more details. Chris@40: ** Chris@40: ** You should have received a copy of the GNU General Public License Chris@40: ** along with this program; if not, write to the Free Software Chris@40: ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. Chris@40: */ Chris@40: Chris@40: #include "sfconfig.h" Chris@40: Chris@40: #include Chris@40: #include Chris@40: #include Chris@40: #include Chris@40: #include Chris@40: #include Chris@40: Chris@40: #if HAVE_UNISTD_H Chris@40: #include Chris@40: #endif Chris@40: Chris@40: #include Chris@40: Chris@40: #include Chris@40: Chris@40: #include "utils.h" Chris@40: Chris@40: #define BUFFER_LEN (1 << 10) Chris@40: #define LOG_BUFFER_SIZE 1024 Chris@40: Chris@40: static void channel_test (void) ; Chris@40: static double max_diff (const float *a, const float *b, unsigned int len, unsigned int * position) ; Chris@40: Chris@40: int Chris@40: main (void) // int argc, char *argv []) Chris@40: { channel_test () ; Chris@40: return 0 ; Chris@40: } /* main */ Chris@40: Chris@40: /*============================================================================================ Chris@40: ** Here are the test functions. Chris@40: */ Chris@40: Chris@40: static void Chris@40: channel_test (void) Chris@40: { static float float_data [1024] ; Chris@40: static float read_float [1024] ; Chris@40: static int read_int [1024] ; Chris@40: static short read_short [1024] ; Chris@40: unsigned int ch, k, position = 0 ; Chris@40: Chris@40: gen_windowed_sine_float (float_data, ARRAY_LEN (float_data), 0.9) ; Chris@40: Chris@40: for (ch = 1 ; ch <= 8 ; ch++) Chris@40: { SNDFILE *file ; Chris@40: SF_INFO wsfinfo, rsfinfo ; Chris@40: sf_count_t wframes = ARRAY_LEN (float_data) / ch ; Chris@40: double maxdiff ; Chris@40: char filename [256] ; Chris@40: Chris@40: snprintf (filename, sizeof (filename), "chan_%d.wav", ch) ; Chris@40: print_test_name (__func__, filename) ; Chris@40: Chris@40: sf_info_setup (&wsfinfo, SF_FORMAT_WAV | SF_FORMAT_FLOAT, 48000, ch) ; Chris@40: sf_info_clear (&rsfinfo) ; Chris@40: Chris@40: /* Write the test file. */ Chris@40: file = test_open_file_or_die (filename, SFM_WRITE, &wsfinfo, SF_FALSE, __LINE__) ; Chris@40: test_writef_float_or_die (file, 0, float_data, wframes, __LINE__) ; Chris@40: sf_close (file) ; Chris@40: Chris@40: /* Read it as float and test. */ Chris@40: file = test_open_file_or_die (filename, SFM_READ, &rsfinfo, SF_FALSE, __LINE__) ; Chris@40: exit_if_true (rsfinfo.frames == 0, Chris@40: "\n\nLine %d : Frames in file %" PRId64 ".\n\n", __LINE__, rsfinfo.frames) ; Chris@40: exit_if_true (wframes != rsfinfo.frames, Chris@40: "\n\nLine %d : Wrote %" PRId64 ", read %" PRId64 " frames.\n\n", __LINE__, wframes, rsfinfo.frames) ; Chris@40: Chris@40: sf_command (file, SFC_SET_SCALE_FLOAT_INT_READ, NULL, SF_TRUE) ; Chris@40: Chris@40: test_readf_float_or_die (file, 0, read_float, rsfinfo.frames, __LINE__) ; Chris@40: compare_float_or_die (float_data, read_float, ch * rsfinfo.frames, __LINE__) ; Chris@40: Chris@40: /* Read it as short and test. */ Chris@40: test_seek_or_die (file, 0, SEEK_SET, 0, ch, __LINE__) ; Chris@40: test_readf_short_or_die (file, 0, read_short, rsfinfo.frames, __LINE__) ; Chris@40: Chris@40: for (k = 0 ; k < ARRAY_LEN (read_float) ; k++) Chris@40: read_float [k] = read_short [k] * (0.9 / 0x8000) ; Chris@40: Chris@40: maxdiff = max_diff (float_data, read_float, ch * rsfinfo.frames, &position) ; Chris@40: exit_if_true (maxdiff > 0.5, "\n\nLine %d : Max diff is %f at index %u\n\n", __LINE__, maxdiff, position) ; Chris@40: Chris@40: /* Read it as int and test. */ Chris@40: test_seek_or_die (file, 0, SEEK_SET, 0, ch, __LINE__) ; Chris@40: test_readf_int_or_die (file, 0, read_int, rsfinfo.frames, __LINE__) ; Chris@40: Chris@40: for (k = 0 ; k < ARRAY_LEN (read_float) ; k++) Chris@40: read_float [k] = read_int [k] * (0.9 / 0x80000000) ; Chris@40: Chris@40: maxdiff = max_diff (float_data, read_float, ch * rsfinfo.frames, &position) ; Chris@40: exit_if_true (maxdiff > 0.5, "\n\nLine %d : Max diff is %f at index %u\n\n", __LINE__, maxdiff, position) ; Chris@40: Chris@40: sf_close (file) ; Chris@40: unlink (filename) ; Chris@40: printf ("ok\n") ; Chris@40: } ; Chris@40: Chris@40: return ; Chris@40: } /* channel_test */ Chris@40: Chris@40: static double Chris@40: max_diff (const float *a, const float *b, unsigned int len, unsigned int * position) Chris@40: { double mdiff = 0.0, diff ; Chris@40: unsigned int k ; Chris@40: Chris@40: for (k = 0 ; k < len ; k++) Chris@40: { diff = fabs (a [k] - b [k]) ; Chris@40: if (diff > mdiff) Chris@40: { mdiff = diff ; Chris@40: *position = k ; Chris@40: } ; Chris@40: } ; Chris@40: Chris@40: return mdiff ; Chris@40: } /* max_diff */