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avfilter/vf_fspp: check count before calling row_idct() 

Fixes crash with odd widths

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-01-28 16:26:00 +01:00
parent 622936424c
commit 375a0273ce
1 changed files with 2 additions and 1 deletions
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3
libavfilter/vf_fspp.c
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@ -221,7 +221,8 @@ static void filter(FSPPContext *p, uint8_t *dst, uint8_t *src,
p->row_fdct(block + 8 * 8, p->src + y * stride + 8 + x0 + 2 - (y & 1), stride, (es - 4) >> 2);
p->column_fidct((int16_t *)(&p->threshold_mtx[0]), block, block3, es&(~1));
p->row_idct(block3 + 0 * 8, p->temp + (y & 15) * stride + x0 + 2 - (y & 1), stride, es >> 2);
if (es > 3)
p->row_idct(block3 + 0 * 8, p->temp + (y & 15) * stride + x0 + 2 - (y & 1), stride, es >> 2);
if (!(y1 & 7) && y1) {
if (y1 & 8)