diff options
Diffstat (limited to 'media/libstagefright/codecs/amrwbenc/inc/isp_isf.tab')
-rw-r--r-- | media/libstagefright/codecs/amrwbenc/inc/isp_isf.tab | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/amrwbenc/inc/isp_isf.tab b/media/libstagefright/codecs/amrwbenc/inc/isp_isf.tab new file mode 100644 index 0000000..865eea0 --- /dev/null +++ b/media/libstagefright/codecs/amrwbenc/inc/isp_isf.tab @@ -0,0 +1,62 @@ +/* + ** Copyright 2003-2010, VisualOn, Inc. + ** + ** Licensed under the Apache License, Version 2.0 (the "License"); + ** you may not use this file except in compliance with the License. + ** You may obtain a copy of the License at + ** + ** http://www.apache.org/licenses/LICENSE-2.0 + ** + ** Unless required by applicable law or agreed to in writing, software + ** distributed under the License is distributed on an "AS IS" BASIS, + ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + ** See the License for the specific language governing permissions and + ** limitations under the License. + */ + + +/*-----------------------------------------------------* + | Tables for function Isf_isp() and Isp_isf() | + *-----------------------------------------------------*/ + +/* table of cos(x) in Q15 */ + +static const Word16 table[129] = { + 32767, + 32758, 32729, 32679, 32610, 32522, 32413, 32286, 32138, + 31972, 31786, 31581, 31357, 31114, 30853, 30572, 30274, + 29957, 29622, 29269, 28899, 28511, 28106, 27684, 27246, + 26791, 26320, 25833, 25330, 24812, 24279, 23732, 23170, + 22595, 22006, 21403, 20788, 20160, 19520, 18868, 18205, + 17531, 16846, 16151, 15447, 14733, 14010, 13279, 12540, + 11793, 11039, 10279, 9512, 8740, 7962, 7180, 6393, + 5602, 4808, 4011, 3212, 2411, 1608, 804, 0, + -804, -1608, -2411, -3212, -4011, -4808, -5602, -6393, + -7180, -7962, -8740, -9512, -10279, -11039, -11793, -12540, + -13279, -14010, -14733, -15447, -16151, -16846, -17531, -18205, + -18868, -19520, -20160, -20788, -21403, -22006, -22595, -23170, + -23732, -24279, -24812, -25330, -25833, -26320, -26791, -27246, + -27684, -28106, -28511, -28899, -29269, -29622, -29957, -30274, + -30572, -30853, -31114, -31357, -31581, -31786, -31972, -32138, + -32286, -32413, -32522, -32610, -32679, -32729, -32758, -32768}; + +/* slope in Q11 used to compute y = acos(x) */ + +static const Word16 slope[128] = { + -26214, -9039, -5243, -3799, -2979, -2405, -2064, -1771, + -1579, -1409, -1279, -1170, -1079, -1004, -933, -880, + -827, -783, -743, -708, -676, -647, -621, -599, + -576, -557, -538, -521, -506, -492, -479, -466, + -456, -445, -435, -426, -417, -410, -402, -395, + -389, -383, -377, -372, -367, -363, -359, -355, + -351, -348, -345, -342, -340, -337, -335, -333, + -331, -330, -329, -328, -327, -326, -326, -326, + -326, -326, -326, -327, -328, -329, -330, -331, + -333, -335, -337, -340, -342, -345, -348, -351, + -355, -359, -363, -367, -372, -377, -383, -389, + -395, -402, -410, -417, -426, -435, -445, -456, + -466, -479, -492, -506, -521, -538, -557, -576, + -599, -621, -647, -676, -708, -743, -783, -827, + -880, -933, -1004, -1079, -1170, -1279, -1409, -1579, + -1771, -2064, -2405, -2979, -3799, -5243, -9039, -26214}; + |