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avcodec/vp3: Fix "runtime error: left shift of negative value"
Fixes: 5c6129154b356b80bcab86f9e3ee5d29/signal_sigabrt_7ffff6ae7cc9_7322_d26ac6d7cb6567db1b8be0159b387d0b.ogg
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 18268f761b
)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -206,8 +206,8 @@ typedef struct Vp3DecodeContext {
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int16_t *dct_tokens[3][64];
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int16_t *dct_tokens_base;
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#define TOKEN_EOB(eob_run) ((eob_run) << 2)
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#define TOKEN_ZERO_RUN(coeff, zero_run) (((coeff) << 9) + ((zero_run) << 2) + 1)
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#define TOKEN_COEFF(coeff) (((coeff) << 2) + 2)
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#define TOKEN_ZERO_RUN(coeff, zero_run) (((coeff) * 512) + ((zero_run) << 2) + 1)
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#define TOKEN_COEFF(coeff) (((coeff) * 4) + 2)
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/**
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* number of blocks that contain DCT coefficients at
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