Alexandre Lision | 7c6f4a6 | 2013-09-05 13:27:01 -0400 | [diff] [blame] | 1 | /* |
| 2 | ** Copyright (C) 2007-2011 Erik de Castro Lopo <erikd@mega-nerd.com> |
| 3 | ** |
| 4 | ** This program is free software; you can redistribute it and/or modify |
| 5 | ** it under the terms of the GNU General Public License as published by |
| 6 | ** the Free Software Foundation; either version 2 of the License, or |
| 7 | ** (at your option) any later version. |
| 8 | ** |
| 9 | ** This program is distributed in the hope that it will be useful, |
| 10 | ** but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | ** GNU General Public License for more details. |
| 13 | ** |
| 14 | ** You should have received a copy of the GNU General Public License |
| 15 | ** along with this program; if not, write to the Free Software |
| 16 | ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 17 | */ |
| 18 | |
| 19 | #include "sfconfig.h" |
| 20 | |
| 21 | #include <stdio.h> |
| 22 | #include <stdlib.h> |
| 23 | #include <string.h> |
| 24 | #include <unistd.h> |
| 25 | |
| 26 | #include <math.h> |
| 27 | |
| 28 | #include <sndfile.h> |
| 29 | |
| 30 | #include "utils.h" |
| 31 | #include "dft_cmp.h" |
| 32 | |
| 33 | #define SAMPLE_RATE 16000 |
| 34 | #define DATA_LENGTH (SAMPLE_RATE / 8) |
| 35 | |
| 36 | static float data_out [DATA_LENGTH] ; |
| 37 | |
| 38 | static inline float |
| 39 | max_float (float a, float b) |
| 40 | { return a > b ? a : b ; |
| 41 | } /* max_float */ |
| 42 | |
| 43 | static void |
| 44 | vorbis_test (void) |
| 45 | { static float float_data [DFT_DATA_LENGTH] ; |
| 46 | const char * filename = "vorbis_test.oga" ; |
| 47 | SNDFILE * file ; |
| 48 | SF_INFO sfinfo ; |
| 49 | float max_abs = 0.0 ; |
| 50 | unsigned k ; |
| 51 | |
| 52 | print_test_name ("vorbis_test", filename) ; |
| 53 | |
| 54 | /* Generate float data. */ |
| 55 | gen_windowed_sine_float (float_data, ARRAY_LEN (float_data), 1.0) ; |
| 56 | |
| 57 | /* Set up output file type. */ |
| 58 | memset (&sfinfo, 0, sizeof (sfinfo)) ; |
| 59 | sfinfo.format = SF_FORMAT_OGG | SF_FORMAT_VORBIS ; |
| 60 | sfinfo.channels = 1 ; |
| 61 | sfinfo.samplerate = SAMPLE_RATE ; |
| 62 | |
| 63 | /* Write the output file. */ |
| 64 | |
| 65 | /* The Vorbis encoder has a bug on PowerPC and X86-64 with sample rates |
| 66 | ** <= 22050. Increasing the sample rate to 32000 avoids triggering it. |
| 67 | ** See https://trac.xiph.org/ticket/1229 |
| 68 | */ |
| 69 | if ((file = sf_open (filename, SFM_WRITE, &sfinfo)) == NULL) |
| 70 | { const char * errstr ; |
| 71 | |
| 72 | errstr = sf_strerror (NULL) ; |
| 73 | if (strstr (errstr, "Sample rate chosen is known to trigger a Vorbis") == NULL) |
| 74 | { printf ("Line %d: sf_open (SFM_WRITE) failed : %s\n", __LINE__, errstr) ; |
| 75 | dump_log_buffer (NULL) ; |
| 76 | exit (1) ; |
| 77 | } ; |
| 78 | |
| 79 | printf ("\n Sample rate -> 32kHz ") ; |
| 80 | sfinfo.samplerate = 32000 ; |
| 81 | |
| 82 | file = test_open_file_or_die (filename, SFM_WRITE, &sfinfo, SF_TRUE, __LINE__) ; |
| 83 | } ; |
| 84 | |
| 85 | test_write_float_or_die (file, 0, float_data, ARRAY_LEN (float_data), __LINE__) ; |
| 86 | sf_close (file) ; |
| 87 | |
| 88 | memset (float_data, 0, sizeof (float_data)) ; |
| 89 | |
| 90 | /* Read the file back in again. */ |
| 91 | memset (&sfinfo, 0, sizeof (sfinfo)) ; |
| 92 | file = test_open_file_or_die (filename, SFM_READ, &sfinfo, SF_FALSE, __LINE__) ; |
| 93 | test_read_float_or_die (file, 0, float_data, ARRAY_LEN (float_data), __LINE__) ; |
| 94 | sf_close (file) ; |
| 95 | |
| 96 | for (k = 0 ; k < ARRAY_LEN (float_data) ; k ++) |
| 97 | max_abs = max_float (max_abs, fabs (float_data [k])) ; |
| 98 | |
| 99 | if (max_abs > 1.021) |
| 100 | { printf ("\n\n Error : max_abs %f should be < 1.021.\n\n", max_abs) ; |
| 101 | exit (1) ; |
| 102 | } ; |
| 103 | |
| 104 | puts ("ok") ; |
| 105 | unlink (filename) ; |
| 106 | } /* vorbis_test */ |
| 107 | |
| 108 | static void |
| 109 | vorbis_quality_test (void) |
| 110 | { /* |
| 111 | ** Encode two files, one at quality 0.3 and one at quality 0.5 and then |
| 112 | ** make sure that the quality 0.3 files is the smaller of the two. |
| 113 | */ |
| 114 | const char * q3_fname = "q3_vorbis.oga" ; |
| 115 | const char * q5_fname = "q5_vorbis.oga" ; |
| 116 | |
| 117 | SNDFILE *q3_file, *q5_file ; |
| 118 | SF_INFO sfinfo ; |
| 119 | int q3_size, q5_size ; |
| 120 | double quality ; |
| 121 | int k ; |
| 122 | |
| 123 | print_test_name (__func__, "q[35]_vorbis.oga") ; |
| 124 | |
| 125 | memset (&sfinfo, 0, sizeof (sfinfo)) ; |
| 126 | |
| 127 | /* Set up output file type. */ |
| 128 | sfinfo.format = SF_FORMAT_OGG | SF_FORMAT_VORBIS ; |
| 129 | sfinfo.channels = 1 ; |
| 130 | sfinfo.samplerate = SAMPLE_RATE ; |
| 131 | |
| 132 | /* Write the output file. */ |
| 133 | q3_file = test_open_file_or_die (q3_fname, SFM_WRITE, &sfinfo, SF_FALSE, __LINE__) ; |
| 134 | q5_file = test_open_file_or_die (q5_fname, SFM_WRITE, &sfinfo, SF_FALSE, __LINE__) ; |
| 135 | |
| 136 | quality = 0.3 ; |
| 137 | sf_command (q3_file, SFC_SET_VBR_ENCODING_QUALITY, &quality, sizeof (quality)) ; |
| 138 | quality = 0.5 ; |
| 139 | sf_command (q5_file, SFC_SET_VBR_ENCODING_QUALITY, &quality, sizeof (quality)) ; |
| 140 | |
| 141 | for (k = 0 ; k < 5 ; k++) |
| 142 | { gen_lowpass_noise_float (data_out, ARRAY_LEN (data_out)) ; |
| 143 | test_write_float_or_die (q3_file, 0, data_out, ARRAY_LEN (data_out), __LINE__) ; |
| 144 | test_write_float_or_die (q5_file, 0, data_out, ARRAY_LEN (data_out), __LINE__) ; |
| 145 | } ; |
| 146 | |
| 147 | sf_close (q3_file) ; |
| 148 | sf_close (q5_file) ; |
| 149 | |
| 150 | q3_size = file_length (q3_fname) ; |
| 151 | q5_size = file_length (q5_fname) ; |
| 152 | |
| 153 | if (q3_size >= q5_size) |
| 154 | { printf ("\n\nLine %d : q3 size (%d) >= q5 size (%d)\n\n", __LINE__, q3_size, q5_size) ; |
| 155 | exit (1) ; |
| 156 | } ; |
| 157 | |
| 158 | puts ("ok") ; |
| 159 | unlink (q3_fname) ; |
| 160 | unlink (q5_fname) ; |
| 161 | } /* vorbis_quality_test */ |
| 162 | |
| 163 | |
| 164 | |
| 165 | int |
| 166 | main (void) |
| 167 | { |
| 168 | if (HAVE_EXTERNAL_LIBS) |
| 169 | { vorbis_test () ; |
| 170 | vorbis_quality_test () ; |
| 171 | } |
| 172 | else |
| 173 | puts (" No Ogg/Vorbis tests because Ogg/Vorbis support was not compiled in.") ; |
| 174 | |
| 175 | return 0 ; |
| 176 | } /* main */ |