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ac3dec: Show usage if no parameter is passed

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When ac3dec is called without any argument the application hangs forever.

Instead of hanging, print the usage and exit.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Fabio Estevam 2012-11-13 10:08:14 -02:00 • committed by Takashi Iwai
parent e875fa883d
commit 848e26d10e
1 changed files with 5 additions and 0 deletions
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5
ac3dec/ac3dec.c
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@ -130,6 +130,11 @@ int main(int argc,char *argv[])
out_config.spdif = SPDIF_NONE; out_config.spdif = SPDIF_NONE;
out_config.hdmi = 0; out_config.hdmi = 0;
if (isatty(fileno(stdin)) && (argc == 1)) {
help();
return 1;
}
morehelp = 0; morehelp = 0;
while (1) { while (1) {
int c; int c;