move check for n_speakers so that we avoid needless work

1 files changed, 5 insertions, 4 deletions

diff --git a/libs/panners/vbap/vbap_speakers.cc b/libs/panners/vbap/vbap_speakers.cc
index 79f5b230f7..1cf78797b7 100644
--- a/libs/panners/vbap/vbap_speakers.cc
+++ b/libs/panners/vbap/vbap_speakers.cc
@@ -116,6 +116,11 @@ VBAPSpeakers::choose_speaker_triplets(struct ls_triplet_chain **ls_triplets)
 
 	int i,j,k,l,table_size;
 	int n_speakers = _speakers.size ();
+
+	if (n_speakers == 0) {
+		return;
+	}
+
 	/* variable length arrays arrived in C99, became optional in C11, and
 	   are only planned for C++14. Use alloca which is functionally
 	   identical (but uglier to read).
@@ -131,10 +136,6 @@ VBAPSpeakers::choose_speaker_triplets(struct ls_triplet_chain **ls_triplets)
 		connections[i] = 0;
 	}
 
-	if (n_speakers == 0) {
-		return;
-	}
-
 	for (i = 0; i < n_speakers; i++) {
 		for (j = i+1; j < n_speakers; j++) {
 			for(k = j+1; k < n_speakers; k++) {