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| author | Michael Niedermayer <michaelni@gmx.at> | 2015-03-15 11:21:50 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2015-03-15 11:21:50 +0100 |
| commit | e3f5b6f16d606b769a82cf4ef1647c4887419374 (patch) | |
| tree | d37b15d37c542f76111e0ad3f56c7fa22a591941 /libavcodec/ac3.c | |
| parent | 94ccbad488d1c315459b8dd22cebed114e72b226 (diff) | |
avcodec/ac3: Fix undefined shift in ff_ac3_bit_alloc_calc_mask()
Found-by: Clang -fsanitize=shift
Reported-by: Thierry Foucu <tfoucu@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/ac3.c')
| -rw-r--r-- | libavcodec/ac3.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/ac3.c b/libavcodec/ac3.c index 29e132f5d1..c4fc77cbdf 100644 --- a/libavcodec/ac3.c +++ b/libavcodec/ac3.c @@ -200,9 +200,9 @@ int ff_ac3_bit_alloc_calc_mask(AC3BitAllocParameters *s, int16_t *band_psd, if (band >= AC3_CRITICAL_BANDS || dba_lengths[seg] > AC3_CRITICAL_BANDS-band) return -1; if (dba_values[seg] >= 4) { - delta = (dba_values[seg] - 3) << 7; + delta = (dba_values[seg] - 3) * 128; } else { - delta = (dba_values[seg] - 4) << 7; + delta = (dba_values[seg] - 4) * 128; } for (i = 0; i < dba_lengths[seg]; i++) { mask[band++] += delta; |