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| author | Mans Rullgard <mans@mansr.com> | 2011-03-27 15:47:10 +0100 |
|---|---|---|
| committer | Mans Rullgard <mans@mansr.com> | 2011-07-06 00:29:59 +0100 |
| commit | 9d4bbf6d4f3a0b78c4ec7a1f366adf5c3cc8ea1a (patch) | |
| tree | 3e001165ef4c79de76849d5269ba577376f88ae1 /libavcodec | |
| parent | 4a28e26ea412a370fb4285f9eb66d8cbbb582420 (diff) | |
| download | ffmpeg-9d4bbf6d4f3a0b78c4ec7a1f366adf5c3cc8ea1a.tar.gz | |
ac3enc: slightly faster quantize_mantissas_blk_ch()
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/ac3enc.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/libavcodec/ac3enc.c b/libavcodec/ac3enc.c index 809a3f5a4f..668cebe400 100644 --- a/libavcodec/ac3enc.c +++ b/libavcodec/ac3enc.c @@ -1074,14 +1074,11 @@ static void quantize_mantissas_blk_ch(AC3Mant *s, int32_t *fixed_coef, int i; for (i = start_freq; i < end_freq; i++) { - int v; int c = fixed_coef[i]; int e = exp[i]; - int b = bap[i]; - switch (b) { - case 0: - v = 0; - break; + int v = bap[i]; + if (v) + switch (v) { case 1: v = sym_quant(c, e, 3); switch (s->mant1_cnt) { @@ -1150,7 +1147,7 @@ static void quantize_mantissas_blk_ch(AC3Mant *s, int32_t *fixed_coef, v = asym_quant(c, e, 16); break; default: - v = asym_quant(c, e, b - 1); + v = asym_quant(c, e, v - 1); break; } qmant[i] = v; |