[FFmpeg-devel] [PATCH] -h message to stdout

[Nicolas George]

Le nonidi 19 flor?al, an CCXV, Michael Niedermayer a ?crit?:
> comment is not doxygen compatible, except that patch ok

Sorry, I did not think such a function needed documentation. New try.

Regards,

-- 
  Nicolas George


Index: ffmpeg.c
===================================================================
--- ffmpeg.c	(revision 8929)
+++ ffmpeg.c	(working copy)
@@ -3718,6 +3718,15 @@
     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)
 {
     show_banner();
@@ -3747,6 +3756,7 @@
     show_help_options(options, "\nAdvanced options:\n",
                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
                       OPT_EXPERT);
+    av_log_set_callback(log_callback_help);
     av_opt_show(avctx_opts[0], NULL);
     av_opt_show(avformat_opts, NULL);
 
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