Show help if no cmd line options are provided at all.

This safes the users time to find out which of -h --help -? works.

Originally committed as revision 20822 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 1 insertions, 0 deletions

diff --git a/ffplay.c b/ffplay.c
index 5eb5a21165..39d960a7e4 100644
--- a/ffplay.c
+++ b/ffplay.c
@@ -2539,6 +2539,7 @@ int main(int argc, char **argv)
     parse_options(argc, argv, options, opt_input_file);
 
     if (!input_filename) {
+        show_help();
         fprintf(stderr, "An input file must be specified\n");
         exit(1);
     }