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Code Issues Releases Activity

assdec: avoid a possible NULL dereference.

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This commit is contained in:
Nicolas George 2012-02-29 13:46:13 +01:00
parent 1eabd71c2b
commit e5dd4ae728
1 changed files with 4 additions and 1 deletions
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5
libavcodec/assdec.c
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@ -41,8 +41,11 @@ static int ass_decode_frame(AVCodecContext *avctx, void *data, int *got_sub_ptr,
int len, size = avpkt->size;
while (size > 0) {
int duration;
ASSDialog *dialog = ff_ass_split_dialog(avctx->priv_data, ptr, 0, NULL);
int duration = dialog->end - dialog->start;
if (!dialog)
return AVERROR_INVALIDDATA;
duration = dialog->end - dialog->start;
len = ff_ass_add_rect(data, ptr, 0, duration, 1);
if (len < 0)
return len;