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mp_image: make image writeable before overwriting palette

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This is an obscure but theoretically possible bug.
This commit is contained in:
wm4 2015-07-05 23:55:47 +02:00
parent 95424517a2
commit 34b223d730
1 changed files with 4 additions and 2 deletions
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6
video/mp_image.c
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@ -364,8 +364,10 @@ void mp_image_copy_attributes(struct mp_image *dst, struct mp_image *src)
}
mp_image_params_guess_csp(&dst->params); // ensure colorspace consistency
if ((dst->fmt.flags & MP_IMGFLAG_PAL) && (src->fmt.flags & MP_IMGFLAG_PAL)) {
if (dst->planes[1] && src->planes[1])
memcpy(dst->planes[1], src->planes[1], MP_PALETTE_SIZE);
if (dst->planes[1] && src->planes[1]) {
if (mp_image_make_writeable(dst))
memcpy(dst->planes[1], src->planes[1], MP_PALETTE_SIZE);
}
}
}