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avcodec/snowenc: Set mb_num to avoid ratecontrol floating point divisions by 0.0 

Fixes: Ticket7990

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 55279d699f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2019-10-14 23:03:50 +02:00
parent f348a0bc3c
commit 1c1b94aaae
1 changed files with 1 additions and 0 deletions
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libavcodec/snowenc.c
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@ -81,6 +81,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
s->m.bit_rate= avctx->bit_rate;
s->m.lmin = avctx->mb_lmin;
s->m.lmax = avctx->mb_lmax;
s->m.mb_num = (avctx->width * avctx->height + 255) / 256; // For ratecontrol
s->m.me.temp =
s->m.me.scratchpad= av_mallocz_array((avctx->width+64), 2*16*2*sizeof(uint8_t));