Commit e4637d6a authored by Michael Niedermayer's avatar Michael Niedermayer
Browse files

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
parent 0dae3e13
......@@ -3985,6 +3985,9 @@ int main(int argc, char **argv)
/* parse options */
parse_options(argc, argv, options, opt_output_file);
if(nb_output_files <= 0 && nb_input_files == 0)
show_help();
/* file converter / grab */
if (nb_output_files <= 0) {
fprintf(stderr, "At least one output file must be specified\n");
......
......@@ -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);
}
......
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