| /* |
| ** Copyright (C) 2007-2011 Erik de Castro Lopo <erikd@mega-nerd.com> |
| ** |
| ** This program is free software; you can redistribute it and/or modify |
| ** it under the terms of the GNU General Public License as published by |
| ** the Free Software Foundation; either version 2 of the License, or |
| ** (at your option) any later version. |
| ** |
| ** This program is distributed in the hope that it will be useful, |
| ** but WITHOUT ANY WARRANTY; without even the implied warranty of |
| ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| ** GNU General Public License for more details. |
| ** |
| ** You should have received a copy of the GNU General Public License |
| ** along with this program; if not, write to the Free Software |
| ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| */ |
| |
| #include "sfconfig.h" |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| |
| #include <math.h> |
| |
| #include <sndfile.h> |
| |
| #include "utils.h" |
| #include "dft_cmp.h" |
| |
| #define SAMPLE_RATE 16000 |
| #define DATA_LENGTH (SAMPLE_RATE / 8) |
| |
| static float data_out [DATA_LENGTH] ; |
| |
| static inline float |
| max_float (float a, float b) |
| { return a > b ? a : b ; |
| } /* max_float */ |
| |
| static void |
| vorbis_test (void) |
| { static float float_data [DFT_DATA_LENGTH] ; |
| const char * filename = "vorbis_test.oga" ; |
| SNDFILE * file ; |
| SF_INFO sfinfo ; |
| float max_abs = 0.0 ; |
| unsigned k ; |
| |
| print_test_name ("vorbis_test", filename) ; |
| |
| /* Generate float data. */ |
| gen_windowed_sine_float (float_data, ARRAY_LEN (float_data), 1.0) ; |
| |
| /* Set up output file type. */ |
| memset (&sfinfo, 0, sizeof (sfinfo)) ; |
| sfinfo.format = SF_FORMAT_OGG | SF_FORMAT_VORBIS ; |
| sfinfo.channels = 1 ; |
| sfinfo.samplerate = SAMPLE_RATE ; |
| |
| /* Write the output file. */ |
| |
| /* The Vorbis encoder has a bug on PowerPC and X86-64 with sample rates |
| ** <= 22050. Increasing the sample rate to 32000 avoids triggering it. |
| ** See https://trac.xiph.org/ticket/1229 |
| */ |
| if ((file = sf_open (filename, SFM_WRITE, &sfinfo)) == NULL) |
| { const char * errstr ; |
| |
| errstr = sf_strerror (NULL) ; |
| if (strstr (errstr, "Sample rate chosen is known to trigger a Vorbis") == NULL) |
| { printf ("Line %d: sf_open (SFM_WRITE) failed : %s\n", __LINE__, errstr) ; |
| dump_log_buffer (NULL) ; |
| exit (1) ; |
| } ; |
| |
| printf ("\n Sample rate -> 32kHz ") ; |
| sfinfo.samplerate = 32000 ; |
| |
| file = test_open_file_or_die (filename, SFM_WRITE, &sfinfo, SF_TRUE, __LINE__) ; |
| } ; |
| |
| test_write_float_or_die (file, 0, float_data, ARRAY_LEN (float_data), __LINE__) ; |
| sf_close (file) ; |
| |
| memset (float_data, 0, sizeof (float_data)) ; |
| |
| /* Read the file back in again. */ |
| memset (&sfinfo, 0, sizeof (sfinfo)) ; |
| file = test_open_file_or_die (filename, SFM_READ, &sfinfo, SF_FALSE, __LINE__) ; |
| test_read_float_or_die (file, 0, float_data, ARRAY_LEN (float_data), __LINE__) ; |
| sf_close (file) ; |
| |
| for (k = 0 ; k < ARRAY_LEN (float_data) ; k ++) |
| max_abs = max_float (max_abs, fabs (float_data [k])) ; |
| |
| if (max_abs > 1.021) |
| { printf ("\n\n Error : max_abs %f should be < 1.021.\n\n", max_abs) ; |
| exit (1) ; |
| } ; |
| |
| puts ("ok") ; |
| unlink (filename) ; |
| } /* vorbis_test */ |
| |
| static void |
| vorbis_quality_test (void) |
| { /* |
| ** Encode two files, one at quality 0.3 and one at quality 0.5 and then |
| ** make sure that the quality 0.3 files is the smaller of the two. |
| */ |
| const char * q3_fname = "q3_vorbis.oga" ; |
| const char * q5_fname = "q5_vorbis.oga" ; |
| |
| SNDFILE *q3_file, *q5_file ; |
| SF_INFO sfinfo ; |
| int q3_size, q5_size ; |
| double quality ; |
| int k ; |
| |
| print_test_name (__func__, "q[35]_vorbis.oga") ; |
| |
| memset (&sfinfo, 0, sizeof (sfinfo)) ; |
| |
| /* Set up output file type. */ |
| sfinfo.format = SF_FORMAT_OGG | SF_FORMAT_VORBIS ; |
| sfinfo.channels = 1 ; |
| sfinfo.samplerate = SAMPLE_RATE ; |
| |
| /* Write the output file. */ |
| q3_file = test_open_file_or_die (q3_fname, SFM_WRITE, &sfinfo, SF_FALSE, __LINE__) ; |
| q5_file = test_open_file_or_die (q5_fname, SFM_WRITE, &sfinfo, SF_FALSE, __LINE__) ; |
| |
| quality = 0.3 ; |
| sf_command (q3_file, SFC_SET_VBR_ENCODING_QUALITY, &quality, sizeof (quality)) ; |
| quality = 0.5 ; |
| sf_command (q5_file, SFC_SET_VBR_ENCODING_QUALITY, &quality, sizeof (quality)) ; |
| |
| for (k = 0 ; k < 5 ; k++) |
| { gen_lowpass_noise_float (data_out, ARRAY_LEN (data_out)) ; |
| test_write_float_or_die (q3_file, 0, data_out, ARRAY_LEN (data_out), __LINE__) ; |
| test_write_float_or_die (q5_file, 0, data_out, ARRAY_LEN (data_out), __LINE__) ; |
| } ; |
| |
| sf_close (q3_file) ; |
| sf_close (q5_file) ; |
| |
| q3_size = file_length (q3_fname) ; |
| q5_size = file_length (q5_fname) ; |
| |
| if (q3_size >= q5_size) |
| { printf ("\n\nLine %d : q3 size (%d) >= q5 size (%d)\n\n", __LINE__, q3_size, q5_size) ; |
| exit (1) ; |
| } ; |
| |
| puts ("ok") ; |
| unlink (q3_fname) ; |
| unlink (q5_fname) ; |
| } /* vorbis_quality_test */ |
| |
| |
| |
| int |
| main (void) |
| { |
| if (HAVE_EXTERNAL_LIBS) |
| { vorbis_test () ; |
| vorbis_quality_test () ; |
| } |
| else |
| puts (" No Ogg/Vorbis tests because Ogg/Vorbis support was not compiled in.") ; |
| |
| return 0 ; |
| } /* main */ |