From 3688f93aede7e2f37519ddbed19e4a0f57331ef5 Mon Sep 17 00:00:00 2001
From: Nicolas George <nicola.george@normalesup.org>
Date: Wed, 9 May 2007 08:17:35 +0000
Subject: [PATCH] make help message go to standard output instead of standard
 error patch by Nicolas George \ nicolas george normalesup org /

Originally committed as revision 8947 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 ffmpeg.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/ffmpeg.c b/ffmpeg.c
index 105e113428..c596c0058a 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -3718,8 +3718,18 @@ static void show_license(void)
     exit(1);
 }
 
+/**
+ * Trivial log callback.
+ * Only suitable for show_help and similar since it lacks prefix handling.
+ */
+static void log_callback_help(void* ptr, int level, const char* fmt, va_list vl)
+{
+    vfprintf(stdout, fmt, vl);
+}
+
 static void show_help(void)
 {
+    av_log_set_callback(log_callback_help);
     show_banner();
     printf("usage: ffmpeg [[infile options] -i infile]... {[outfile options] outfile}...\n"
            "Hyper fast Audio and Video encoder\n");