diff -r 537ddd8aa407 -r 2036ebfaccda src/org/sipdroid/media/codecs/G711.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/org/sipdroid/media/codecs/G711.java Fri Nov 20 19:29:42 2009 +0100 @@ -0,0 +1,393 @@ +package org.sipdroid.media.codecs; + +/** + * G.711 codec. This class provides methods for u-law, A-law and linear PCM + * conversions. + */ +public class G711 extends Codec { + /* + * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische + * Universitaet Berlin. See the accompanying file "COPYRIGHT" for + * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. + */ + public static final CodecInfo mCodecInfo = new CodecInfo(); + + static { + mCodecInfo.displayName = "aLaw"; + mCodecInfo.rtpPayloadName = "PCMA"; + mCodecInfo.description = "G711 aLaw codec"; + mCodecInfo.rtpPayloadCode = 8; + mCodecInfo.samplingRate = 8000; + mCodecInfo.rtpSampleDivider = 1; + mCodecInfo.minFrameTimeMsecs = 20; + mCodecInfo.codecFrameSize = 160; + CodecManager.registerAudioCodec(new G711()); + } + + private static final int[] _a2s = { + + 60032, 60288, 59520, 59776, 61056, 61312, 60544, 60800, + 57984, 58240, 57472, 57728, 59008, 59264, 58496, 58752, + 62784, 62912, 62528, 62656, 63296, 63424, 63040, 63168, + 61760, 61888, 61504, 61632, 62272, 62400, 62016, 62144, + 43520, 44544, 41472, 42496, 47616, 48640, 45568, 46592, + 35328, 36352, 33280, 34304, 39424, 40448, 37376, 38400, + 54528, 55040, 53504, 54016, 56576, 57088, 55552, 56064, + 50432, 50944, 49408, 49920, 52480, 52992, 51456, 51968, + 65192, 65208, 65160, 65176, 65256, 65272, 65224, 65240, + 65064, 65080, 65032, 65048, 65128, 65144, 65096, 65112, + 65448, 65464, 65416, 65432, 65512, 65528, 65480, 65496, + 65320, 65336, 65288, 65304, 65384, 65400, 65352, 65368, + 64160, 64224, 64032, 64096, 64416, 64480, 64288, 64352, + 63648, 63712, 63520, 63584, 63904, 63968, 63776, 63840, + 64848, 64880, 64784, 64816, 64976, 65008, 64912, 64944, + 64592, 64624, 64528, 64560, 64720, 64752, 64656, 64688, + 5504, 5248, 6016, 5760, 4480, 4224, 4992, 4736, + 7552, 7296, 8064, 7808, 6528, 6272, 7040, 6784, + 2752, 2624, 3008, 2880, 2240, 2112, 2496, 2368, + 3776, 3648, 4032, 3904, 3264, 3136, 3520, 3392, + 22016, 20992, 24064, 23040, 17920, 16896, 19968, 18944, + 30208, 29184, 32256, 31232, 26112, 25088, 28160, 27136, + 11008, 10496, 12032, 11520, 8960, 8448, 9984, 9472, + 15104, 14592, 16128, 15616, 13056, 12544, 14080, 13568, + 344, 328, 376, 360, 280, 264, 312, 296, + 472, 456, 504, 488, 408, 392, 440, 424, + 88, 72, 120, 104, 24, 8, 56, 40, + 216, 200, 248, 232, 152, 136, 184, 168, + 1376, 1312, 1504, 1440, 1120, 1056, 1248, 1184, + 1888, 1824, 2016, 1952, 1632, 1568, 1760, 1696, + 688, 656, 752, 720, 560, 528, 624, 592, + 944, 912, 1008, 976, 816, 784, 880, 848 + + }; + + private static final int[] _s2a = { + + 213,212,215,214,209,208,211,210,221,220,223,222,217,216,219,218, + 197,196,199,198,193,192,195,194,205,204,207,206,201,200,203,202, + 245,245,244,244,247,247,246,246,241,241,240,240,243,243,242,242, + 253,253,252,252,255,255,254,254,249,249,248,248,251,251,250,250, + 229,229,229,229,228,228,228,228,231,231,231,231,230,230,230,230, + 225,225,225,225,224,224,224,224,227,227,227,227,226,226,226,226, + 237,237,237,237,236,236,236,236,239,239,239,239,238,238,238,238, + 233,233,233,233,232,232,232,232,235,235,235,235,234,234,234,234, + 149,149,149,149,149,149,149,149,148,148,148,148,148,148,148,148, + 151,151,151,151,151,151,151,151,150,150,150,150,150,150,150,150, + 145,145,145,145,145,145,145,145,144,144,144,144,144,144,144,144, + 147,147,147,147,147,147,147,147,146,146,146,146,146,146,146,146, + 157,157,157,157,157,157,157,157,156,156,156,156,156,156,156,156, + 159,159,159,159,159,159,159,159,158,158,158,158,158,158,158,158, + 153,153,153,153,153,153,153,153,152,152,152,152,152,152,152,152, + 155,155,155,155,155,155,155,155,154,154,154,154,154,154,154,154, + 133,133,133,133,133,133,133,133,133,133,133,133,133,133,133,133, + 132,132,132,132,132,132,132,132,132,132,132,132,132,132,132,132, + 135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135, + 134,134,134,134,134,134,134,134,134,134,134,134,134,134,134,134, + 129,129,129,129,129,129,129,129,129,129,129,129,129,129,129,129, + 128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128, + 131,131,131,131,131,131,131,131,131,131,131,131,131,131,131,131, + 130,130,130,130,130,130,130,130,130,130,130,130,130,130,130,130, + 141,141,141,141,141,141,141,141,141,141,141,141,141,141,141,141, + 140,140,140,140,140,140,140,140,140,140,140,140,140,140,140,140, + 143,143,143,143,143,143,143,143,143,143,143,143,143,143,143,143, + 142,142,142,142,142,142,142,142,142,142,142,142,142,142,142,142, + 137,137,137,137,137,137,137,137,137,137,137,137,137,137,137,137, + 136,136,136,136,136,136,136,136,136,136,136,136,136,136,136,136, + 139,139,139,139,139,139,139,139,139,139,139,139,139,139,139,139, + 138,138,138,138,138,138,138,138,138,138,138,138,138,138,138,138, + 181,181,181,181,181,181,181,181,181,181,181,181,181,181,181,181, + 181,181,181,181,181,181,181,181,181,181,181,181,181,181,181,181, + 180,180,180,180,180,180,180,180,180,180,180,180,180,180,180,180, + 180,180,180,180,180,180,180,180,180,180,180,180,180,180,180,180, + 183,183,183,183,183,183,183,183,183,183,183,183,183,183,183,183, + 183,183,183,183,183,183,183,183,183,183,183,183,183,183,183,183, + 182,182,182,182,182,182,182,182,182,182,182,182,182,182,182,182, + 182,182,182,182,182,182,182,182,182,182,182,182,182,182,182,182, + 177,177,177,177,177,177,177,177,177,177,177,177,177,177,177,177, + 177,177,177,177,177,177,177,177,177,177,177,177,177,177,177,177, + 176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176, + 176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176, + 179,179,179,179,179,179,179,179,179,179,179,179,179,179,179,179, + 179,179,179,179,179,179,179,179,179,179,179,179,179,179,179,179, + 178,178,178,178,178,178,178,178,178,178,178,178,178,178,178,178, + 178,178,178,178,178,178,178,178,178,178,178,178,178,178,178,178, + 189,189,189,189,189,189,189,189,189,189,189,189,189,189,189,189, + 189,189,189,189,189,189,189,189,189,189,189,189,189,189,189,189, + 188,188,188,188,188,188,188,188,188,188,188,188,188,188,188,188, + 188,188,188,188,188,188,188,188,188,188,188,188,188,188,188,188, + 191,191,191,191,191,191,191,191,191,191,191,191,191,191,191,191, + 191,191,191,191,191,191,191,191,191,191,191,191,191,191,191,191, + 190,190,190,190,190,190,190,190,190,190,190,190,190,190,190,190, + 190,190,190,190,190,190,190,190,190,190,190,190,190,190,190,190, + 185,185,185,185,185,185,185,185,185,185,185,185,185,185,185,185, + 185,185,185,185,185,185,185,185,185,185,185,185,185,185,185,185, + 184,184,184,184,184,184,184,184,184,184,184,184,184,184,184,184, + 184,184,184,184,184,184,184,184,184,184,184,184,184,184,184,184, + 187,187,187,187,187,187,187,187,187,187,187,187,187,187,187,187, + 187,187,187,187,187,187,187,187,187,187,187,187,187,187,187,187, + 186,186,186,186,186,186,186,186,186,186,186,186,186,186,186,186, + 186,186,186,186,186,186,186,186,186,186,186,186,186,186,186,186, + 165,165,165,165,165,165,165,165,165,165,165,165,165,165,165,165, + 165,165,165,165,165,165,165,165,165,165,165,165,165,165,165,165, + 165,165,165,165,165,165,165,165,165,165,165,165,165,165,165,165, + 165,165,165,165,165,165,165,165,165,165,165,165,165,165,165,165, + 164,164,164,164,164,164,164,164,164,164,164,164,164,164,164,164, + 164,164,164,164,164,164,164,164,164,164,164,164,164,164,164,164, + 164,164,164,164,164,164,164,164,164,164,164,164,164,164,164,164, + 164,164,164,164,164,164,164,164,164,164,164,164,164,164,164,164, + 167,167,167,167,167,167,167,167,167,167,167,167,167,167,167,167, + 167,167,167,167,167,167,167,167,167,167,167,167,167,167,167,167, + 167,167,167,167,167,167,167,167,167,167,167,167,167,167,167,167, + 167,167,167,167,167,167,167,167,167,167,167,167,167,167,167,167, + 166,166,166,166,166,166,166,166,166,166,166,166,166,166,166,166, + 166,166,166,166,166,166,166,166,166,166,166,166,166,166,166,166, + 166,166,166,166,166,166,166,166,166,166,166,166,166,166,166,166, + 166,166,166,166,166,166,166,166,166,166,166,166,166,166,166,166, + 161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161, + 161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161, + 161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161, + 161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161, + 160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160, + 160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160, + 160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160, + 160,160,160,160,160,160,160,160,160,160,160,160,160,160,160,160, + 163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163, + 163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163, + 163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163, + 163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163, + 162,162,162,162,162,162,162,162,162,162,162,162,162,162,162,162, + 162,162,162,162,162,162,162,162,162,162,162,162,162,162,162,162, + 162,162,162,162,162,162,162,162,162,162,162,162,162,162,162,162, + 162,162,162,162,162,162,162,162,162,162,162,162,162,162,162,162, + 173,173,173,173,173,173,173,173,173,173,173,173,173,173,173,173, + 173,173,173,173,173,173,173,173,173,173,173,173,173,173,173,173, + 173,173,173,173,173,173,173,173,173,173,173,173,173,173,173,173, + 173,173,173,173,173,173,173,173,173,173,173,173,173,173,173,173, + 172,172,172,172,172,172,172,172,172,172,172,172,172,172,172,172, + 172,172,172,172,172,172,172,172,172,172,172,172,172,172,172,172, + 172,172,172,172,172,172,172,172,172,172,172,172,172,172,172,172, + 172,172,172,172,172,172,172,172,172,172,172,172,172,172,172,172, + 175,175,175,175,175,175,175,175,175,175,175,175,175,175,175,175, + 175,175,175,175,175,175,175,175,175,175,175,175,175,175,175,175, + 175,175,175,175,175,175,175,175,175,175,175,175,175,175,175,175, + 175,175,175,175,175,175,175,175,175,175,175,175,175,175,175,175, + 174,174,174,174,174,174,174,174,174,174,174,174,174,174,174,174, + 174,174,174,174,174,174,174,174,174,174,174,174,174,174,174,174, + 174,174,174,174,174,174,174,174,174,174,174,174,174,174,174,174, + 174,174,174,174,174,174,174,174,174,174,174,174,174,174,174,174, + 169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169, + 169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169, + 169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169, + 169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169, + 168,168,168,168,168,168,168,168,168,168,168,168,168,168,168,168, + 168,168,168,168,168,168,168,168,168,168,168,168,168,168,168,168, + 168,168,168,168,168,168,168,168,168,168,168,168,168,168,168,168, + 168,168,168,168,168,168,168,168,168,168,168,168,168,168,168,168, + 171,171,171,171,171,171,171,171,171,171,171,171,171,171,171,171, + 171,171,171,171,171,171,171,171,171,171,171,171,171,171,171,171, + 171,171,171,171,171,171,171,171,171,171,171,171,171,171,171,171, + 171,171,171,171,171,171,171,171,171,171,171,171,171,171,171,171, + 170,170,170,170,170,170,170,170,170,170,170,170,170,170,170,170, + 170,170,170,170,170,170,170,170,170,170,170,170,170,170,170,170, + 170,170,170,170,170,170,170,170,170,170,170,170,170,170,170,170, + 170,170,170,170,170,170,170,170,170,170,170,170,170,170,170,170, + 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, + 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, + 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, + 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, + 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, + 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, + 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, + 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, + 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, + 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, + 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, + 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, + 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, + 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, + 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, + 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, + 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, + 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, + 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, + 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, + 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, + 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, + 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, + 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, + 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, + 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, + 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, + 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, + 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, + 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, + 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, + 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, + 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, + 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, + 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, + 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, + 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, + 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, + 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, + 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, + 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, + 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, + 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, + 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, + 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, + 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, + 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, + 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, + 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, + 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, + 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, + 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, + 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, + 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, + 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, + 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, + 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, + 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, + 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, + 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, + 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, + 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, + 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, + 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, + 56, 56, 56, 56, 56, 56, 56, 56, 56, 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14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, + 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, + 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, + 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, + 24, 24, 24, 24, 24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, + 30, 30, 30, 30, 30, 30, 30, 30, 31, 31, 31, 31, 31, 31, 31, 31, + 28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29, 29, 29, 29, + 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, + 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 17, + 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23, + 20, 20, 20, 20, 20, 20, 20, 20, 21, 21, 21, 21, 21, 21, 21, 21, + 106,106,106,106,107,107,107,107,104,104,104,104,105,105,105,105, + 110,110,110,110,111,111,111,111,108,108,108,108,109,109,109,109, + 98, 98, 98, 98, 99, 99, 99, 99, 96, 96, 96, 96, 97, 97, 97, 97, + 102,102,102,102,103,103,103,103,100,100,100,100,101,101,101,101, + 122,122,123,123,120,120,121,121,126,126,127,127,124,124,125,125, + 114,114,115,115,112,112,113,113,118,118,119,119,116,116,117,117, + 74, 75, 72, 73, 78, 79, 76, 77, 66, 67, 64, 65, 70, 71, 68, 69, + 90, 91, 88, 89, 94, 95, 92, 93, 82, 83, 80, 81, 86, 87, 84, 85 + }; + + + public class G711Context extends Context { + public final short[] a2s = new short[256]; + public final byte[] s2a = new byte[65536]; + } + + public void init(G711Context ctx) { + int i; + for (i = 0; i < 256; i++) + ctx.a2s[i] = (short)_a2s[i]; + for (i = 0; i < 65536; i++) + ctx.s2a[i] = (byte)_s2a[i >> 4]; + } + + private void alaw2linear(G711Context ctx, byte alaw[], int inoffset, int size, short lin[], int outoffset) { + int i; + for (i = 0; i < size; i++) + lin[i + outoffset] = ctx.a2s[alaw[i + inoffset] & 0xff]; + } + + private void linear2alaw(G711Context ctx, short lin[], int inoffset, byte alaw[], int outoffset, int size) { + int i; + for (i = 0; i < size; i++) + alaw[i + outoffset] = ctx.s2a[lin[i + inoffset] & 0xffff]; + } + + @Override + public Context initDecoder() { + G711Context ctx = new G711Context(); + init(ctx); + return ctx; + } + + @Override + public Context initEncoder() { + G711Context ctx = new G711Context(); + init(ctx); + return ctx; + } + + @Override + public void cleanDecoder(Context ctx) { + } + + @Override + public void cleanEncoder(Context ctx) { + } + + @Override + public int decode(Context ctx, byte[] indata, int inoffset, int size, + short[] outsample, int outoffset) { + alaw2linear((G711Context) ctx, indata, inoffset, size, outsample, outoffset); + return size; + } + + @Override + public int encode(Context ctx, short[] insample, int inoffset, int size, + byte[] outdata, int outoffset) { + linear2alaw((G711Context) ctx, insample, inoffset, outdata, outoffset, size); + return 0; + } + + @Override + public CodecInfo getInfo() { + return mCodecInfo; + } + + static public void load(){ + } +}