diff options
| author | Tim Walker <tdskywalker@gmail.com> | 2013-11-22 20:25:57 +0100 |
|---|---|---|
| committer | Anton Khirnov <anton@khirnov.net> | 2013-11-28 22:02:50 +0100 |
| commit | 27245b4e1bbb7a863341db321b5bdc5792e427d9 (patch) | |
| tree | 33409b9b03c95c2fdce003979037cb5763978ed6 /libavcodec/dcadata.h | |
| parent | b6d5e6aa10a2f09351f287e876f7ed4504e1f75d (diff) | |
dca: remove embedded downmix coefficient extraction.
It was based on an old, seemingly incorrect specification, so default
coefficients were always used anyway.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Diffstat (limited to 'libavcodec/dcadata.h')
| -rw-r--r-- | libavcodec/dcadata.h | 17 |
1 files changed, 0 insertions, 17 deletions
diff --git a/libavcodec/dcadata.h b/libavcodec/dcadata.h index e8f07e8beb..c4841fbac8 100644 --- a/libavcodec/dcadata.h +++ b/libavcodec/dcadata.h @@ -7505,23 +7505,6 @@ DECLARE_ALIGNED(16, static const float, lfe_fir_128)[] = 0.01724460535, 0.47964480519, 0.48503074050, 0.01805862412, }; -/* 10^-(dB/20), with dB being a list of dB values ranging from 0 to -72 */ -/* do a 20*log10(dca_downmix_coeffs) to reconvert the values */ - -static const float dca_downmix_coeffs[65] = { - 1.000000000000000, 0.988553094656939, 0.971627951577106, 0.944060876285923, 0.917275935389780, 0.891250938133746, - 0.865964323360065, 0.841395141645195, 0.817523037943650, 0.794328234724281, 0.771791515585012, 0.749894209332456, - 0.728618174513228, 0.707945784384138, 0.687859912308808, 0.668343917568615, 0.649381631576211, 0.630957344480193, - 0.613055792149821, 0.595662143529010, 0.578761988349121, 0.562341325190349, 0.546386549881854, 0.530884444230988, - 0.515822165072306, 0.501187233627272, 0.446683592150963, 0.398107170553497, 0.354813389233575, 0.316227766016838, - 0.281838293126445, 0.251188643150958, 0.223872113856834, 0.199526231496888, 0.177827941003892, 0.158489319246111, - 0.141253754462275, 0.125892541179417, 0.112201845430196, 0.100000000000000, 0.089125093813374, 0.079432823472428, - 0.070794578438414, 0.063095734448019, 0.053088444423099, 0.044668359215096, 0.037583740428844, 0.031622776601684, - 0.026607250597988, 0.022387211385683, 0.018836490894898, 0.015848931924611, 0.013335214321633, 0.011220184543020, - 0.009440608762859, 0.007943282347243, 0.005623413251903, 0.003981071705535, 0.002818382931264, 0.001995262314969, - 0.001412537544623, 0.001000000000000, 0.000501187233627, 0.000251188643151, 0.000000000000000, -}; - static const float dca_default_coeffs[10][5][2] = { { { 0.707946, 0.707946 }, }, // A { { 1.000000, 0.000000 }, { 0.000000, 1.000000 }, }, // A + B (dual mono) |