summaryrefslogtreecommitdiffstats
path: root/sbc
diff options
context:
space:
mode:
Diffstat (limited to 'sbc')
-rw-r--r--sbc/sbctester.c112
1 files changed, 55 insertions, 57 deletions
diff --git a/sbc/sbctester.c b/sbc/sbctester.c
index 55ab28c0..0b35a335 100644
--- a/sbc/sbctester.c
+++ b/sbc/sbctester.c
@@ -1,30 +1,26 @@
-/* *
- * Copyright (C) 2007 by Frederic Dalleau *
- * fdalleau@free.fr *
- * *
- * 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. *
- ***************************************************************************/
-
/*
-
-A2DP Test Specification Chapter 4.6 (p 25)
-namely SBC codec conformance test
-This is a test procedure for SBC
-
-*/
+ *
+ * Bluetooth low-complexity, subband codec (SBC) library
+ *
+ * Copyright (C) 2007 Marcel Holtmann <marcel@holtmann.org>
+ * Copyright (C) 2007 Frederic Dalleau <fdalleau@free.fr>
+ *
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
#ifdef HAVE_CONFIG_H
#include <config.h>
@@ -41,18 +37,11 @@ This is a test procedure for SBC
#define TSTSAMPLEFACTOR(x) (x)
#define DEFACCURACY 7
-/* temporary */
-#ifndef VERSION
-#define VERSION "1"
-#endif
-
-void usage()
+static void usage()
{
- printf("SBC codec conformance test (see Chapter 4.6, p. 25) ver %s\n", VERSION);
+ printf("SBC conformance test ver %s\n", VERSION);
printf("Copyright (c) 2007 Frederic Dalleau\n\n");
- //printf("This is a mandatory test case, but alternative methods exists.\n\n");
-
printf("Usage:\n"
"\tsbctester reference.wav checkfile.wav\n"
"\tsbctester integer\n"
@@ -67,7 +56,7 @@ void usage()
printf("\n\tA file called out.csv is generated to use the data in a spreadsheet application or database.\n\n");
}
-double sampletobits(short sample16, int verbose)
+static double sampletobits(short sample16, int verbose)
{
double bits = 0;
int i;
@@ -98,10 +87,13 @@ double sampletobits(short sample16, int verbose)
if (verbose)
printf("\n");
+
return bits;
}
-int calculate_rms_level(SNDFILE * sndref, SF_INFO * infosref, SNDFILE * sndtst, SF_INFO * infostst, int accuracy, char *csvname)
+static int calculate_rms_level(SNDFILE * sndref, SF_INFO * infosref,
+ SNDFILE * sndtst, SF_INFO * infostst,
+ int accuracy, char *csvname)
{
int i, j, err = 0, verdict = 0;
short refsample[MAXCHANNELS], tstsample[MAXCHANNELS];
@@ -134,14 +126,16 @@ int calculate_rms_level(SNDFILE * sndref, SF_INFO * infosref, SNDFILE * sndtst,
r1 = sf_read_short(sndref, refsample, infostst->channels);
if (r1 != infostst->channels) {
- printf("Failed to read reference data:%s (r1=%d, channels=%d)", sf_strerror(sndref), r1, infostst->channels);
+ printf("Failed to read reference data: %s (r1=%d, channels=%d)",
+ sf_strerror(sndref), r1, infostst->channels);
err = -1;
goto error;
}
r2 = sf_read_short(sndtst, tstsample, infostst->channels);
if (r2 != infostst->channels) {
- printf("Failed to read test data:%s (r2=%d, channels=%d)\n", sf_strerror(sndtst), r2, infostst->channels);
+ printf("Failed to read test data: %s (r2=%d, channels=%d)\n",
+ sf_strerror(sndtst), r2, infostst->channels);
err = -1;
goto error;
}
@@ -168,7 +162,8 @@ int calculate_rms_level(SNDFILE * sndref, SF_INFO * infosref, SNDFILE * sndtst,
rms_accu[j] /= (double) infostst->frames;
printf("Accumulated / %f = %f\n", (double) infostst->frames, rms_accu[j]);
rms_level[j] = sqrt(rms_accu[j]);
- printf("Level = %f (%f x %f = %f)\n", rms_level[j], rms_level[j], rms_level[j], rms_level[j] * rms_level[j]);
+ printf("Level = %f (%f x %f = %f)\n",
+ rms_level[j], rms_level[j], rms_level[j], rms_level[j] * rms_level[j]);
}
verdict = 1;
@@ -181,24 +176,24 @@ int calculate_rms_level(SNDFILE * sndref, SF_INFO * infosref, SNDFILE * sndtst,
printf("%s return %d\n", __FUNCTION__, verdict);
-
- error:
-
+error:
if (csv)
fclose(csv);
return (err < 0) ? err : verdict;
}
-int check_sample()
+static int check_sample()
{
return 0;
}
-int check_absolute_diff(SNDFILE * sndref, SF_INFO * infosref, SNDFILE * sndtst, SF_INFO * infostst, int accuracy)
+static int check_absolute_diff(SNDFILE * sndref, SF_INFO * infosref,
+ SNDFILE * sndtst, SF_INFO * infostst, int accuracy)
{
int i, j, err = 0, verdict = 0;
- short refsample[MAXCHANNELS], tstsample[MAXCHANNELS], refmax[MAXCHANNELS], tstmax[MAXCHANNELS];
+ short refsample[MAXCHANNELS], tstsample[MAXCHANNELS],
+ short refmax[MAXCHANNELS], tstmax[MAXCHANNELS];
double refbits, tstbits;
double rms_absolute = 1.0 / (pow(2, accuracy - 2));
double calc_max[MAXCHANNELS];
@@ -221,14 +216,16 @@ int check_absolute_diff(SNDFILE * sndref, SF_INFO * infosref, SNDFILE * sndtst,
r1 = sf_read_short(sndref, refsample, infostst->channels);
if (r1 != infostst->channels) {
- printf("Failed to read reference data:%s (r1=%d, channels=%d)", sf_strerror(sndref), r1, infostst->channels);
+ printf("Failed to read reference data: %s (r1=%d, channels=%d)",
+ sf_strerror(sndref), r1, infostst->channels);
err = -1;
goto error;
}
r2 = sf_read_short(sndtst, tstsample, infostst->channels);
if (r2 != infostst->channels) {
- printf("Failed to read test data:%s (r2=%d, channels=%d)\n", sf_strerror(sndtst), r2, infostst->channels);
+ printf("Failed to read test data: %s (r2=%d, channels=%d)\n",
+ sf_strerror(sndtst), r2, infostst->channels);
err = -1;
goto error;
}
@@ -253,13 +250,13 @@ int check_absolute_diff(SNDFILE * sndref, SF_INFO * infosref, SNDFILE * sndtst,
}
for (j = 0; j < infostst->channels; j++) {
- printf("Calculated max: %f (%hd-%hd=%hd)\n", calc_max[j], tstmax[j], refmax[j], tstmax[j] - refmax[j]);
+ printf("Calculated max: %f (%hd-%hd=%hd)\n",
+ calc_max[j], tstmax[j], refmax[j], tstmax[j] - refmax[j]);
}
printf("%s return %d\n", __FUNCTION__, verdict);
- error:
-
+error:
return (err < 0) ? err : verdict;
}
@@ -291,7 +288,6 @@ int main(int argc, char *argv[])
ref = argv[1];
tst = argv[2];
- // open both files
printf("opening reference %s\n", ref);
sndref = sf_open(ref, SFM_READ, &infosref);
@@ -309,8 +305,10 @@ int main(int argc, char *argv[])
goto error;
}
- printf("reference:\n\t%d frames,\n\t%d hz,\n\t%d channels\n", (int) infosref.frames, (int) infosref.samplerate, (int) infosref.channels);
- printf("testfile:\n\t%d frames,\n\t%d hz,\n\t%d channels\n", (int) infostst.frames, (int) infostst.samplerate, (int) infostst.channels);
+ printf("reference:\n\t%d frames,\n\t%d hz,\n\t%d channels\n",
+ (int) infosref.frames, (int) infosref.samplerate, (int) infosref.channels);
+ printf("testfile:\n\t%d frames,\n\t%d hz,\n\t%d channels\n",
+ (int) infostst.frames, (int) infostst.samplerate, (int) infostst.channels);
// check number of channels
if (infosref.channels > 2 || infostst.channels > 2) {
@@ -319,7 +317,8 @@ int main(int argc, char *argv[])
goto error;
}
// compare number of samples
- if (infosref.samplerate != infostst.samplerate || infosref.channels != infostst.channels) {
+ if (infosref.samplerate != infostst.samplerate ||
+ infosref.channels != infostst.channels) {
printf("Cannot compare files with different charasteristics\n");
err = -1;
goto error;
@@ -346,8 +345,7 @@ int main(int argc, char *argv[])
pass = pass_rms && pass_absolute;
printf("Verdict: %s\n", pass ? "pass" : "fail");
- error:
-
+error:
if (sndref)
sf_close(sndref);
generated by cgit (git 2.34.1) at 2025-11-04 04:42:01 +0000