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make help message go to standard output instead of standard error

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patch by Nicolas George \ nicolas george normalesup org /

Originally committed as revision 8947 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Nicolas George
2007-05-09 08:17:35 +00:00
committed by Benoit Fouet
parent 5adf43e47e
commit 3688f93aed
1 changed files with 10 additions and 0 deletions
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ffmpeg.c
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@ -3718,8 +3718,18 @@ static void show_license(void)
exit(1); 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) static void show_help(void)
{ {
av_log_set_callback(log_callback_help);
show_banner(); show_banner();
printf("usage: ffmpeg [[infile options] -i infile]... {[outfile options] outfile}...\n" printf("usage: ffmpeg [[infile options] -i infile]... {[outfile options] outfile}...\n"
"Hyper fast Audio and Video encoder\n"); "Hyper fast Audio and Video encoder\n");