--- /dev/null
+/*
+** Copyright (C) 1999-2011 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 <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#include "g72x.h"
+#include "g72x_priv.h"
+
+#ifndef M_PI
+#define M_PI 3.14159265358979323846264338
+#endif
+
+#define BUFFER_SIZE (1<<14) /* Should be (1<<14) */
+#define SAMPLE_RATE 11025
+
+
+static void g721_test (void) ;
+static void g723_test (double margin) ;
+
+static void gen_signal_double (double *data, double scale, int datalen) ;
+static int error_function (double data, double orig, double margin) ;
+
+static int oct_save_short (short *a, short *b, int len) ;
+
+int
+main (int argc, char *argv [])
+{ int bDoAll = 0 ;
+ int nTests = 0 ;
+
+ if (argc != 2)
+ { printf ("Usage : %s <test>\n", argv [0]) ;
+ printf (" Where <test> is one of the following:\n") ;
+ printf (" g721 - test G721 encoder and decoder\n") ;
+ printf (" g723 - test G721 encoder and decoder\n") ;
+ printf (" all - perform all tests\n") ;
+ exit (1) ;
+ } ;
+
+ bDoAll=!strcmp (argv [1], "all");
+
+ if (bDoAll || ! strcmp (argv [1], "g721"))
+ { g721_test () ;
+ nTests++ ;
+ } ;
+
+ if (bDoAll || ! strcmp (argv [1], "g723"))
+ { g723_test (0.53) ;
+ nTests++ ;
+ } ;
+
+ if (nTests == 0)
+ { printf ("Mono : ************************************\n") ;
+ printf ("Mono : * No '%s' test defined.\n", argv [1]) ;
+ printf ("Mono : ************************************\n") ;
+ return 1 ;
+ } ;
+
+ return 0 ;
+} /* main */
+
+static void
+g721_test (void)
+{
+ return ;
+} /* g721_test */
+
+static void
+g723_test (double margin)
+{ static double orig_buffer [BUFFER_SIZE] ;
+ static short orig [BUFFER_SIZE] ;
+ static short data [BUFFER_SIZE] ;
+
+ G72x_STATE encoder_state, decoder_state ;
+
+ long k ;
+ int code, position, max_err ;
+
+ private_init_state (&encoder_state) ;
+ encoder_state.encoder = g723_24_encoder ;
+ encoder_state.codec_bits = 3 ;
+
+ private_init_state (&decoder_state) ;
+ decoder_state.decoder = g723_24_decoder ;
+ decoder_state.codec_bits = 3 ;
+
+ memset (data, 0, BUFFER_SIZE * sizeof (short)) ;
+ memset (orig, 0, BUFFER_SIZE * sizeof (short)) ;
+
+ printf (" g723_test : ") ;
+ fflush (stdout) ;
+
+ gen_signal_double (orig_buffer, 32000.0, BUFFER_SIZE) ;
+ for (k = 0 ; k < BUFFER_SIZE ; k++)
+ orig [k] = (short) orig_buffer [k] ;
+
+ /* Write and read data here. */
+ position = 0 ;
+ max_err = 0 ;
+ for (k = 0 ; k < BUFFER_SIZE ; k++)
+ { code = encoder_state.encoder (orig [k], &encoder_state) ;
+ data [k] = decoder_state.decoder (code, &decoder_state) ;
+ if (abs (orig [k] - data [k]) > max_err)
+ { position = k ;
+ max_err = abs (orig [k] - data [k]) ;
+ } ;
+ } ;
+
+ printf ("\n\nMax error of %d at postion %d.\n", max_err, position) ;
+
+ for (k = 0 ; k < BUFFER_SIZE ; k++)
+ { if (error_function (data [k], orig [k], margin))
+ { printf ("Line %d: Incorrect sample A (#%ld : %d should be %d).\n", __LINE__, k, data [k], orig [k]) ;
+ oct_save_short (orig, data, BUFFER_SIZE) ;
+ exit (1) ;
+ } ;
+ } ;
+
+
+ printf ("ok\n") ;
+
+ return ;
+} /* g723_test */
+
+
+#define SIGNAL_MAXVAL 30000.0
+#define DECAY_COUNT 1000
+
+static void
+gen_signal_double (double *gendata, double scale, int gendatalen)
+{ int k, ramplen ;
+ double amp = 0.0 ;
+
+ ramplen = DECAY_COUNT ;
+
+ for (k = 0 ; k < gendatalen ; k++)
+ { if (k <= ramplen)
+ amp = scale * k / ((double) ramplen) ;
+ else if (k > gendatalen - ramplen)
+ amp = scale * (gendatalen - k) / ((double) ramplen) ;
+
+ gendata [k] = amp * (0.4 * sin (33.3 * 2.0 * M_PI * ((double) (k+1)) / ((double) SAMPLE_RATE))
+ + 0.3 * cos (201.1 * 2.0 * M_PI * ((double) (k+1)) / ((double) SAMPLE_RATE))) ;
+ } ;
+
+ return ;
+} /* gen_signal_double */
+
+static int
+error_function (double data, double orig, double margin)
+{ double error ;
+
+ if (fabs (orig) <= 500.0)
+ error = fabs (fabs (data) - fabs(orig)) / 2000.0 ;
+ else if (fabs (orig) <= 1000.0)
+ error = fabs (data - orig) / 3000.0 ;
+ else
+ error = fabs (data - orig) / fabs (orig) ;
+
+ if (error > margin)
+ { printf ("\n\n*******************\nError : %f\n", error) ;
+ return 1 ;
+ } ;
+ return 0 ;
+} /* error_function */
+
+static int
+oct_save_short (short *a, short *b, int len)
+{ FILE *file ;
+ int k ;
+
+ if (! (file = fopen ("error.dat", "w")))
+ return 1 ;
+
+ fprintf (file, "# Not created by Octave\n") ;
+
+ fprintf (file, "# name: a\n") ;
+ fprintf (file, "# type: matrix\n") ;
+ fprintf (file, "# rows: %d\n", len) ;
+ fprintf (file, "# columns: 1\n") ;
+
+ for (k = 0 ; k < len ; k++)
+ fprintf (file, "% d\n", a [k]) ;
+
+ fprintf (file, "# name: b\n") ;
+ fprintf (file, "# type: matrix\n") ;
+ fprintf (file, "# rows: %d\n", len) ;
+ fprintf (file, "# columns: 1\n") ;
+
+ for (k = 0 ; k < len ; k++)
+ fprintf (file, "% d\n", b [k]) ;
+
+ fclose (file) ;
+ return 0 ;
+} /* oct_save_short */
+
projects / Faustine.git / blobdiff