From 4f05038d7b71ec03ada011107122faffefaccf86 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20Mangano?= <fmang@mg0.fr>
Date: Tue, 1 Jan 2013 20:59:30 +0100
Subject: [PATCH] short-circuit when in read-only mode

---
 opustags.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/opustags.c b/opustags.c
index cb61ac0..b2a9707 100644
--- a/opustags.c
+++ b/opustags.c
@@ -365,7 +365,7 @@ int main(int argc, char **argv){
                 free_tags(&tags);
                 if(raw_tags)
                     free(raw_tags);
-                if(error)
+                if(error || !out)
                     break;
                 else
                     continue;
@@ -389,6 +389,8 @@ int main(int argc, char **argv){
             else if(ogg_stream_check(&enc) != 0)
                 error = "ogg_stream_check: internal error (encoder)";
         }
+        else if(packet_count >= 2) // Read-only mode
+            break;
     }
     if(packet_count >= 0){
         ogg_stream_clear(&os);