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8bps: Make the bound-checks consistent

This commit is contained in:
Luca Barbato 2013-07-23 14:19:09 +02:00
parent bd7b4da0f4
commit 6fd221e5f8
1 changed files with 2 additions and 2 deletions
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4
libavcodec/8bps.c
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@ -105,7 +105,7 @@ static int decode_frame(AVCodecContext *avctx, void *data,
if ((count = *dp++) <= 127) {
count++;
dlen -= count + 1;
if (pixptr + count * px_inc > pixptr_end)
if (pixptr_end - pixptr < count * px_inc)
break;
if (ep - dp < count)
return AVERROR_INVALIDDATA;
@ -115,7 +115,7 @@ static int decode_frame(AVCodecContext *avctx, void *data,
}
} else {
count = 257 - count;
if (pixptr + count * px_inc > pixptr_end)
if (pixptr_end - pixptr < count * px_inc)
break;
while (count--) {
*pixptr = *dp;