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avcodec/libvpxdec: reject video and alpha dimension mismatches

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Signed-off-by: Marton Balint <cus@passwd.hu>
Signed-off-by: James Zern <jzern@google.com>
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Marton Balint 2019-10-27 18:10:36 +01:00 committed by James Zern
parent 5478e2cc57
commit c54268ce02
1 changed files with 11 additions and 0 deletions
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11
libavcodec/libvpxdec.c
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@ -283,6 +283,17 @@ static int vpx_decode(AVCodecContext *avctx,
return ret;
}
if (ctx->has_alpha_channel &&
(img->d_w != img_alpha->d_w ||
img->d_h != img_alpha->d_h ||
img->bit_depth != img_alpha->bit_depth)) {
av_log(avctx, AV_LOG_ERROR,
"Video dimensions %dx%d@%dbpp differ from alpha dimensions %dx%d@%dbpp\n",
img->d_w, img->d_h, img->bit_depth,
img_alpha->d_w, img_alpha->d_h, img_alpha->bit_depth);
return AVERROR_INVALIDDATA;
}
planes[0] = img->planes[VPX_PLANE_Y];
planes[1] = img->planes[VPX_PLANE_U];
planes[2] = img->planes[VPX_PLANE_V];