[libav-bugs] [Bug 868] AC3 audio glitch : exponent out-of-range

bugzilla at libav.org bugzilla at libav.org
Sun Jun 12 18:15:06 CEST 2016


https://bugzilla.libav.org/show_bug.cgi?id=868

François Cartegnie <fcvlcdev at free.fr> changed:

           What    |Removed                     |Added
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                 CC|                            |fcvlcdev at free.fr

--- Comment #2 from François Cartegnie <fcvlcdev at free.fr> ---
glitch is after 40s.
When going into

static int decode_exponents(GetBitContext *gbc, int exp_strategy, int ngrps,
                            uint8_t absexp, int8_t *dexps)

absexp is already at 30, which is over 24, the spec limit.
it is first applied a relative +0 in D45 strategy, which then fails the <= 24

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