Update of /usr/cvsroot/asterisk
In directory mongoose.digium.com:/tmp/cvs-serv2657
Modified Files:
frame.c
Log Message:
add API call to properly sum two frames of SLINEAR data
Index: frame.c
===================================================================
RCS file: /usr/cvsroot/asterisk/frame.c,v
retrieving revision 1.67
retrieving revision 1.68
diff -u -d -r1.67 -r1.68
--- frame.c 28 Oct 2005 21:35:55 -0000 1.67
+++ frame.c 28 Oct 2005 21:49:27 -0000 1.68
@@ -1271,3 +1271,25 @@
return 0;
}
+
+int ast_frame_slinear_sum(struct ast_frame *f1, struct ast_frame *f2)
+{
+ int count;
+ short *data1, *data2;
+
+ if ((f1->frametype != AST_FRAME_VOICE) || (f1->subclass !=
AST_FORMAT_SLINEAR))
+ return -1;
+
+ if ((f2->frametype != AST_FRAME_VOICE) || (f2->subclass !=
AST_FORMAT_SLINEAR))
+ return -1;
+
+ if (f1->samples != f2->samples)
+ return -1;
+
+ for (count = 0, data1 = f1->data, data2 = f2->data;
+ count < f1->samples;
+ count++, data1++, data2++)
+ ast_slinear_saturated_add(data1, *data2);
+
+ return 0;
+}
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