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atrac9dec: relax gradient value requirements

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Unlike the range, the gradient start value does not have to be lower
than the end value.
Does allow more files to be correctly decoded without errors.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
This commit is contained in:
Rostislav Pehlivanov 2018-08-27 23:12:36 +01:00
parent e13e52fd0d
commit 6213cf7394
1 changed files with 1 additions and 1 deletions
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libavcodec/atrac9dec.c
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@ -123,7 +123,7 @@ static inline int parse_gradient(ATRAC9Context *s, ATRAC9BlockData *b,
if (grad_range[0] >= grad_range[1] || grad_range[1] > 47)
return AVERROR_INVALIDDATA;
if (grad_value[0] >= grad_value[1] || grad_value[1] >= 32)
if (grad_value[0] > 31 || grad_value[1] > 31)
return AVERROR_INVALIDDATA;
if (b->grad_boundary > b->q_unit_cnt)