Simplify this code with a suggestion from Luigi on the asterisk-dev list.

Instead of using is16kHz(), implement a format_rate() function.


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@98025 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/translate.c

@@ -294,12 +294,12 @@ struct ast_trans_pvt *ast_translator_build_path(int dest, int source)
 	return head;
 }
 
-static inline int is16kHz(int format)
+static inline int format_rate(int format)
 {
 	if (format == AST_FORMAT_G722)
-		return 1;
+		return 16000;
 
-	return 0;
+	return 8000;
 }
 
 /*! \brief do the actual translation */
@@ -320,11 +320,6 @@ struct ast_frame *ast_translate(struct ast_trans_pvt *path, struct ast_frame *f,
 
 	/* XXX hmmm... check this below */
 	if (!ast_tvzero(f->delivery)) {
-		int in_rate = 8000;
-
-		if (is16kHz(f->subclass))
-			in_rate = 16000;
-		
 		if (!ast_tvzero(path->nextin)) {
 			/* Make sure this is in line with what we were expecting */
 			if (!ast_tveq(path->nextin, f->delivery)) {
@@ -343,7 +338,7 @@ struct ast_frame *ast_translate(struct ast_trans_pvt *path, struct ast_frame *f,
 			path->nextout = f->delivery;
 		}
 		/* Predict next incoming sample */
-		path->nextin = ast_tvadd(path->nextin, ast_samp2tv(f->samples, in_rate));
+		path->nextin = ast_tvadd(path->nextin, ast_samp2tv(f->samples, format_rate(f->subclass)));
 	}
 	delivery = f->delivery;
 	for ( ; out && p ; p = p->next) {
@@ -356,11 +351,6 @@ struct ast_frame *ast_translate(struct ast_trans_pvt *path, struct ast_frame *f,
 		return NULL;
 	/* we have a frame, play with times */
 	if (!ast_tvzero(delivery)) {
-		int out_rate = 8000;
-
-		if (is16kHz(out->subclass))
-			out_rate = 16000;
-
 		/* Regenerate prediction after a discontinuity */
 		if (ast_tvzero(path->nextout))
 			path->nextout = ast_tvnow();
@@ -370,7 +360,7 @@ struct ast_frame *ast_translate(struct ast_trans_pvt *path, struct ast_frame *f,
 		
 		/* Predict next outgoing timestamp from samples in this
 		   frame. */
-		path->nextout = ast_tvadd(path->nextout, ast_samp2tv(out->samples, out_rate));
+		path->nextout = ast_tvadd(path->nextout, ast_samp2tv(out->samples, format_rate(out->subclass)));
 	} else {
 		out->delivery = ast_tv(0, 0);
 		out->has_timing_info = has_timing_info;
@@ -393,10 +383,7 @@ static void calc_cost(struct ast_translator *t, int seconds)
 	struct ast_trans_pvt *pvt;
 	struct timeval start;
 	int cost;
-	int out_rate = 8000;
-
-	if (is16kHz(t->dstfmt))
-		out_rate = 16000;
+	int out_rate = format_rate(t->dstfmt);
 
 	if (!seconds)
 		seconds = 1;