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prevent access to vp8_coeff_band[16]
Originally committed as revision 24656 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -822,11 +822,11 @@ static int decode_block_coeffs(VP56RangeCoder *c, DCTELEM block[16],
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skip_eob:
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if (!vp56_rac_get_prob_branchy(c, token_prob[1])) { // DCT_0
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zero_nhood = 0;
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token_prob = probs[vp8_coeff_band[++i]][0];
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if (i < 16)
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goto skip_eob;
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if (++i == 16)
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return nonzero; // invalid input; blocks should end with EOB
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zero_nhood = 0;
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token_prob = probs[vp8_coeff_band[i]][0];
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goto skip_eob;
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}
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if (!vp56_rac_get_prob_branchy(c, token_prob[2])) { // DCT_1
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