From ad2d597292f41fa2255ffba907fbf3d1c27b8d0d Mon Sep 17 00:00:00 2001
From: Carl Eugen Hoyos <cehoyos@ag.or.at>
Date: Fri, 28 Oct 2011 18:21:40 +0200
Subject: [PATCH] Be less verbose about dca channel number changes.

Only inform the user that the number of channels changed if it was set
before.
---
 libavcodec/dca.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/dca.c b/libavcodec/dca.c
index 4c37438f44..ddd2be9fb8 100644
--- a/libavcodec/dca.c
+++ b/libavcodec/dca.c
@@ -1815,7 +1815,7 @@ static int dca_decode_frame(AVCodecContext * avctx,
         return -1;
     }
 
-    if (avctx->channels != channels) {
+    if (avctx->channels && avctx->channels != channels) {
         av_log(avctx, AV_LOG_INFO, "Number of channels changed in DCA decoder (%d -> %d)\n", avctx->channels, channels);
         avctx->channels = channels;
     }