/*
* Generates a synthetic stereo sound
- * NOTE: no floats are used to guaranty a bit exact output.
+ * NOTE: No floats are used to guarantee a bit exact output.
+ *
+ * Copyright (c) 2002 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+
#include <stdlib.h>
#include <stdio.h>
"generate a test raw 16 bit stereo audio stream\n", argv[0]);
exit(1);
}
-
+
outfile = fopen(argv[1], "wb");
if (!outfile) {
perror(argv[1]);
f = 100 + (((10000 - 100) * i) / FE);
a += (f * FRAC_ONE) / FE;
}
-
+
/* 0.5 second of low amplitude white noise */
for(i=0;i<FE / 2;i++) {
v = myrnd(&seed, 20000) - 10000;
taba[j] += (f * FRAC_ONE) / FE;
}
}
-
+
/* stereo 500 Hz with varying volume */
a = 0;
ampa = 0;