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author | Justin Ruggles <justin.ruggles@gmail.com> | 2011-06-16 16:55:33 -0400 |
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committer | Justin Ruggles <justin.ruggles@gmail.com> | 2011-07-01 13:02:11 -0400 |
commit | 8b7b2d6aaee8cef0051beb3a4cf3e1c5a87cf40f (patch) | |
tree | c0d0baec39a96c4ee2ec165a706fdb795f355695 /libavcodec/ac3dsp.c | |
parent | 523b7eba19590652b7ba19c5bdd85dd257bfe4f7 (diff) | |
download | ffmpeg-8b7b2d6aaee8cef0051beb3a4cf3e1c5a87cf40f.tar.gz |
ac3dsp: simplify extract_exponents() now that it does not need to do clipping.
Diffstat (limited to 'libavcodec/ac3dsp.c')
-rw-r--r-- | libavcodec/ac3dsp.c | 15 |
1 files changed, 1 insertions, 14 deletions
diff --git a/libavcodec/ac3dsp.c b/libavcodec/ac3dsp.c index 8ce5f8d2c5..98c73573cb 100644 --- a/libavcodec/ac3dsp.c +++ b/libavcodec/ac3dsp.c @@ -164,21 +164,8 @@ static void ac3_extract_exponents_c(uint8_t *exp, int32_t *coef, int nb_coefs) int i; for (i = 0; i < nb_coefs; i++) { - int e; int v = abs(coef[i]); - if (v == 0) - e = 24; - else { - e = 23 - av_log2(v); - if (e >= 24) { - e = 24; - coef[i] = 0; - } else if (e < 0) { - e = 0; - coef[i] = av_clip(coef[i], -16777215, 16777215); - } - } - exp[i] = e; + exp[i] = v ? 23 - av_log2(v) : 24; } } |