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avcodec/huffyuv: simplify allocation of temporaries

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This also fixes a null pointer dereference with rgb and plane prediction

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-02-19 20:19:38 +01:00
parent a88dee8eea
commit 4332b01c30
1 changed files with 4 additions and 10 deletions
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14
libavcodec/huffyuv.c
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@ -58,17 +58,11 @@ av_cold int ff_huffyuv_alloc_temp(HYuvContext *s)
{
int i;
if (s->bitstream_bpp<24 || s->version > 2) {
for (i=0; i<3; i++) {
s->temp[i]= av_malloc(2*s->width + 16);
if (!s->temp[i])
return AVERROR(ENOMEM);
s->temp16[i] = (uint16_t*)s->temp[i];
}
} else {
s->temp[0]= av_mallocz(4*s->width + 16);
if (!s->temp[0])
for (i=0; i<3; i++) {
s->temp[i]= av_malloc(4*s->width + 16);
if (!s->temp[i])
return AVERROR(ENOMEM);
s->temp16[i] = (uint16_t*)s->temp[i];
}
return 0;
}