Add a small tweak to the code that checks to see whether destination formats

are translatable based on the source format.  If we have already determined
that there is no translation path in one direction, don't bother checking the
other direction.


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@46554 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/translate.c

@@ -855,13 +855,14 @@ unsigned int ast_translate_available_formats(unsigned int dest, unsigned int src
 
 		/* if we don't have a translation path from the src
 		   to this format, remove it from the result */
-		if (!tr_matrix[src_audio][powerof(x)].step)
+		if (!tr_matrix[src_audio][powerof(x)].step) {
 			res &= ~x;
+			continue;
+		}
 
 		/* now check the opposite direction */
 		if (!tr_matrix[powerof(x)][src_audio].step)
 			res &= ~x;
-
 	}
 
 	/* For a given source video format, traverse the list of
@@ -880,8 +881,10 @@ unsigned int ast_translate_available_formats(unsigned int dest, unsigned int src
 
 		/* if we don't have a translation path from the src
 		   to this format, remove it from the result */
-		if (!tr_matrix[src_video][powerof(x)].step)
+		if (!tr_matrix[src_video][powerof(x)].step) {
 			res &= ~x;
+			continue;
+		}
 
 		/* now check the opposite direction */
 		if (!tr_matrix[powerof(x)][src_video].step)