From: Nicolas George <nicola.george@normalesup.org>
Date: Wed, 9 May 2007 08:17:35 +0000 (+0000)
Subject: make help message go to standard output instead of standard error
X-Git-Tag: v0.5~9072
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3688f93aede7e2f37519ddbed19e4a0f57331ef5;p=platform%2Fupstream%2Flibav.git

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
---

diff --git a/ffmpeg.c b/ffmpeg.c
index 105e113..c596c00 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");