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cmdutils: show options in show_help_children only if the context has options

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Avoid to print a pointless name of the context followed by an empty list.
This commit is contained in:
Stefano Sabatini 2012-08-09 14:44:18 +02:00
parent a6d6b8a200
commit ad5043e285
1 changed files with 4 additions and 2 deletions
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6
cmdutils.c
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@ -168,8 +168,10 @@ void show_help_options(const OptionDef *options, const char *msg, int mask,
void show_help_children(const AVClass *class, int flags) void show_help_children(const AVClass *class, int flags)
{ {
const AVClass *child = NULL; const AVClass *child = NULL;
av_opt_show2(&class, NULL, flags, 0); if (class->option) {
printf("\n"); av_opt_show2(&class, NULL, flags, 0);
printf("\n");
}
while (child = av_opt_child_class_next(class, child)) while (child = av_opt_child_class_next(class, child))
show_help_children(child, flags); show_help_children(child, flags);