mirror of https://git.ffmpeg.org/ffmpeg.git
h261: check the mtype index
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org
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@ -376,6 +376,11 @@ static int h261_decode_mb(H261Context *h)
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// Read mtype
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h->mtype = get_vlc2(&s->gb, h261_mtype_vlc.table, H261_MTYPE_VLC_BITS, 2);
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if (h->mtype < 0 || h->mtype >= FF_ARRAY_ELEMS(ff_h261_mtype_map)) {
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av_log(s->avctx, AV_LOG_ERROR, "Invalid mtype index %d\n",
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h->mtype);
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return SLICE_ERROR;
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}
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h->mtype = ff_h261_mtype_map[h->mtype];
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// Read mquant
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