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| author | Kostya Shishkov <kostya.shishkov@gmail.com> | 2012-06-08 19:34:46 +0200 |
|---|---|---|
| committer | Kostya Shishkov <kostya.shishkov@gmail.com> | 2012-06-09 08:38:51 +0200 |
| commit | cac4760bf42f1b7ec93860399fbb7b5bff90005f (patch) | |
| tree | e2b7bf261d8edca431a1546067bc07858e0a71af /libavcodec/imcdata.h | |
| parent | e1a3fa5d3ae63058fa2cf6dfcfaad50a8f61a034 (diff) | |
| download | ffmpeg-cac4760bf42f1b7ec93860399fbb7b5bff90005f.tar.gz | |
iac: generate codec tables as they are supposed to be
Unlike its predecessor, Indeo Audio codec generates tables depending on
sampling rate. Previously decoder used pre-generated tables for 22050 Hz
which obviously doesn't work with other frequencies.
Many thanks to Maxim Poliakovsky for providing all needed information
for this.
Diffstat (limited to 'libavcodec/imcdata.h')
| -rw-r--r-- | libavcodec/imcdata.h | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/libavcodec/imcdata.h b/libavcodec/imcdata.h index ea9b3747fc..8e99391d61 100644 --- a/libavcodec/imcdata.h +++ b/libavcodec/imcdata.h @@ -44,25 +44,6 @@ static const int8_t cyclTab2[32] = { 12, 13, 14, 15, 16, 17, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29}; -static const float iac_weights1[31] = { - 0.0538585, 0.0576251, 0.0645592, 0.0494032, 0.0428915, 0.0592188, - 0.0604145, 0.0673549, 0.0797351, 0.0972911, 0.119376, 0.144777, - 0.17181, 0.198625, 0.242918, 0.262113, 0.278434, 0.310752, - 0.319978, 0.328482, 0.354631, 0.380212, 0.388783, 0.400428, - 0.43096, 0.462397, 0.479469, 0.499329, 0.534526, 0.568631, - 0.589218 -}; - -static const float iac_weights2[31] = { - 0.000375307, 0.000450455, 0.000612191, 0.000297262, 0.000202956, - 0.000484887, 0.000511777, 0.000686431, 0.00108256, 0.00185267, - 0.00321869, 0.00541861, 0.00860266, 0.012726, 0.0219151, - 0.0269104, 0.0316774, 0.0426107, 0.046113, 0.0494974, - 0.0608692, 0.0734633, 0.0780208, 0.0844921, 0.103034, - 0.124606, 0.137421, 0.153336, 0.184296, 0.217792, - 0.239742 -}; - static const float imc_weights1[31] = { 0.119595, 0.123124, 0.129192, 9.97377e-2, 8.1923e-2, 9.61153e-2, 8.77885e-2, 8.61174e-2, 9.00882e-2, 9.91658e-2, 0.112991, 0.131126, 0.152886, 0.177292, 0.221782, 0.244917, 0.267386, |