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| author | Justin Ruggles <justin.ruggles@gmail.com> | 2011-11-20 14:03:21 -0500 |
|---|---|---|
| committer | Justin Ruggles <justin.ruggles@gmail.com> | 2011-11-26 16:25:06 -0500 |
| commit | 954d94dd5e13ba7a5e9e049d0f980bddced9644c (patch) | |
| tree | 87451e73dada8b00012e03e27c0e5c1aa6f8a53d /libavcodec/adxdec.c | |
| parent | c52ddc60241229af198ac03c8d86d219e7d5942a (diff) | |
| download | ffmpeg-954d94dd5e13ba7a5e9e049d0f980bddced9644c.tar.gz | |
adx: use 12-bit coefficients instead of 14-bit to avoid integer overflow
Diffstat (limited to 'libavcodec/adxdec.c')
| -rw-r--r-- | libavcodec/adxdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/adxdec.c b/libavcodec/adxdec.c index 39223c2e4f..93bbc6b51b 100644 --- a/libavcodec/adxdec.c +++ b/libavcodec/adxdec.c @@ -59,7 +59,7 @@ static void adx_decode(ADXContext *c, int16_t *out, const uint8_t *in, int ch) s2 = prev->s2; for (i = 0; i < 32; i++) { d = get_sbits(&gb, 4); - s0 = (BASEVOL * d * scale + SCALE1 * s1 - SCALE2 * s2) >> 14; + s0 = ((d << COEFF_BITS) * scale + COEFF1 * s1 - COEFF2 * s2) >> COEFF_BITS; s2 = s1; s1 = av_clip_int16(s0); *out = s1; |