mace: check channel count, fixes FPE

Fixes ticket1391

Found-by: Piotr Bandurski <ami_stuff@o2.pl>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6df1cfa7e4d488051d7b5033c0c69df970db9f82)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-06-03 14:53:43 +02:00
parent bbc4d287c9
commit be1d65031f

View File

@ -231,7 +231,7 @@ static av_cold int mace_decode_init(AVCodecContext * avctx)
{
MACEContext *ctx = avctx->priv_data;
if (avctx->channels > 2)
if (avctx->channels > 2 || avctx->channels <= 0)
return -1;
avctx->sample_fmt = AV_SAMPLE_FMT_S16;