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24 "sourcesContent": [ 25 "(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require==\"function\"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error(\"Cannot find module '\"+o+\"'\")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.exports,e,t,n,r)}return n[o].exports}var i=typeof require==\"function\"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})", 26 "exports.MP3Demuxer = require('./src/demuxer');\nexports.MP3Decoder = require('./src/decoder');\n", 27 "var AV = (window.AV);\nvar MP3FrameHeader = require('./header');\nvar MP3Stream = require('./stream');\nvar MP3Frame = require('./frame');\nvar MP3Synth = require('./synth');\nvar Layer1 = require('./layer1');\nvar Layer2 = require('./layer2');\nvar Layer3 = require('./layer3');\n\nvar MP3Decoder = AV.Decoder.extend(function() {\n AV.Decoder.register('mp3', this);\n \n this.prototype.init = function() {\n this.mp3_stream = new MP3Stream(this.bitstream);\n this.frame = new MP3Frame();\n this.synth = new MP3Synth();\n this.seeking = false;\n };\n \n this.prototype.readChunk = function() {\n var stream = this.mp3_stream;\n var frame = this.frame;\n var synth = this.synth;\n\n // if we just seeked, we may start getting errors involving the frame reservoir,\n // so keep going until we successfully decode a frame\n if (this.seeking) {\n while (true) {\n try {\n frame.decode(stream);\n break;\n } catch (err) {\n if (err instanceof AV.UnderflowError)\n throw err;\n }\n }\n \n this.seeking = false;\n } else {\n frame.decode(stream);\n }\n \n synth.frame(frame);\n \n // interleave samples\n var data = synth.pcm.samples,\n channels = synth.pcm.channels,\n len = synth.pcm.length,\n output = new Float32Array(len * channels),\n j = 0;\n \n for (var k = 0; k < len; k++) {\n for (var i = 0; i < channels; i++) {\n output[j++] = data[i][k];\n }\n }\n \n return output;\n };\n \n this.prototype.seek = function(timestamp) {\n var offset;\n \n // if there was a Xing or VBRI tag with a seek table, use that\n // otherwise guesstimate based on CBR bitrate\n if (this.demuxer.seekPoints.length > 0) {\n timestamp = this._super(timestamp);\n offset = this.stream.offset;\n } else {\n offset = timestamp * this.format.bitrate / 8 / this.format.sampleRate;\n }\n \n this.mp3_stream.reset(offset);\n \n // try to find 3 consecutive valid frame headers in a row\n for (var i = 0; i < 4096; i++) {\n var pos = offset + i;\n for (var j = 0; j < 3; j++) {\n this.mp3_stream.reset(pos);\n \n try {\n var header = MP3FrameHeader.decode(this.mp3_stream);\n } catch (e) {\n break;\n }\n \n // skip the rest of the frame\n var size = header.framesize();\n if (size == null)\n break;\n \n pos += size;\n }\n \n // check if we're done\n if (j === 3)\n break;\n }\n \n // if we didn't find 3 frames, just try the first one and hope for the best\n if (j !== 3)\n i = 0;\n \n this.mp3_stream.reset(offset + i);\n \n // if we guesstimated, update the timestamp to another estimate of where we actually seeked to\n if (this.demuxer.seekPoints.length === 0)\n timestamp = this.stream.offset / (this.format.bitrate / 8) * this.format.sampleRate;\n \n this.seeking = true;\n return timestamp;\n };\n});\n\nmodule.exports = MP3Decoder;\n", 28 "var AV = (window.AV);\nvar ID3v23Stream = require('./id3').ID3v23Stream;\nvar ID3v22Stream = require('./id3').ID3v22Stream;\nvar MP3FrameHeader = require('./header');\nvar MP3Stream = require('./stream');\n\nvar MP3Demuxer = AV.Demuxer.extend(function() {\n AV.Demuxer.register(this);\n \n this.probe = function(stream) {\n var off = stream.offset;\n \n // skip id3 metadata if it exists\n var id3header = MP3Demuxer.getID3v2Header(stream);\n if (id3header)\n stream.advance(10 + id3header.length);\n \n // attempt to read the header of the first audio frame\n var s = new MP3Stream(new AV.Bitstream(stream));\n var header = null;\n \n try {\n header = MP3FrameHeader.decode(s);\n } catch (e) {};\n \n // go back to the beginning, for other probes\n stream.seek(off);\n \n return !!header;\n };\n \n this.getID3v2Header = function(stream) {\n if (stream.peekString(0, 3) == 'ID3') {\n stream = AV.Stream.fromBuffer(stream.peekBuffer(0, 10));\n stream.advance(3); // 'ID3'\n\n var major = stream.readUInt8();\n var minor = stream.readUInt8();\n var flags = stream.readUInt8();\n var bytes = stream.readBuffer(4).data;\n var length = (bytes[0] << 21) | (bytes[1] << 14) | (bytes[2] << 7) | bytes[3];\n\n return { \n version: '2.' + major + '.' + minor, \n major: major, \n minor: minor, \n flags: flags, \n length: length \n };\n }\n \n return null;\n };\n \n const XING_OFFSETS = [[32, 17], [17, 9]];\n this.prototype.parseDuration = function(header) {\n var stream = this.stream;\n var frames;\n \n var offset = stream.offset;\n if (!header || header.layer !== 3)\n return false;\n \n // Check for Xing/Info tag\n stream.advance(XING_OFFSETS[header.flags & MP3FrameHeader.FLAGS.LSF_EXT ? 1 : 0][header.nchannels() === 1 ? 1 : 0]);\n var tag = stream.readString(4);\n if (tag === 'Xing' || tag === 'Info') {\n var flags = stream.readUInt32();\n if (flags & 1) \n frames = stream.readUInt32();\n \n if (flags & 2)\n var size = stream.readUInt32();\n \n if (flags & 4 && frames && size) {\n for (var i = 0; i < 100; i++) {\n var b = stream.readUInt8();\n var pos = b / 256 * size | 0;\n var time = i / 100 * (frames * header.nbsamples() * 32) | 0;\n this.addSeekPoint(pos, time);\n }\n }\n \n if (flags & 8)\n stream.advance(4);\n \n } else {\n // Check for VBRI tag (always 32 bytes after end of mpegaudio header)\n stream.seek(offset + 4 + 32);\n tag = stream.readString(4);\n if (tag == 'VBRI' && stream.readUInt16() === 1) { // Check tag version\n stream.advance(4); // skip delay and quality\n stream.advance(4); // skip size\n frames = stream.readUInt32();\n \n var entries = stream.readUInt16();\n var scale = stream.readUInt16();\n var bytesPerEntry = stream.readUInt16();\n var framesPerEntry = stream.readUInt16();\n var fn = 'readUInt' + (bytesPerEntry * 8);\n \n var pos = 0;\n for (var i = 0; i < entries; i++) {\n this.addSeekPoint(pos, framesPerEntry * i);\n pos += stream[fn]();\n }\n }\n }\n \n if (!frames)\n return false;\n \n this.emit('duration', (frames * header.nbsamples() * 32) / header.samplerate * 1000 | 0);\n return true;\n };\n \n this.prototype.readChunk = function() {\n var stream = this.stream;\n \n if (!this.sentInfo) {\n // read id3 metadata if it exists\n var id3header = MP3Demuxer.getID3v2Header(stream);\n if (id3header) {\n stream.advance(10);\n \n if (id3header.major > 2) {\n var id3 = new ID3v23Stream(id3header, stream);\n } else {\n var id3 = new ID3v22Stream(id3header, stream);\n }\n \n this.emit('metadata', id3.read());\n }\n \n // read the header of the first audio frame\n var off = stream.offset;\n var s = new MP3Stream(new AV.Bitstream(stream));\n \n var header = MP3FrameHeader.decode(s);\n if (!header)\n return this.emit('error', 'Could not find first frame.');\n \n this.emit('format', {\n formatID: 'mp3',\n sampleRate: header.samplerate,\n channelsPerFrame: header.nchannels(),\n bitrate: header.bitrate,\n floatingPoint: true\n });\n \n var sentDuration = this.parseDuration(header);\n stream.advance(off - stream.offset);\n \n // if there were no Xing/VBRI tags, guesstimate the duration based on data size and bitrate\n this.dataSize = 0;\n if (!sentDuration) {\n this.on('end', function() {\n this.emit('duration', this.dataSize * 8 / header.bitrate * 1000 | 0);\n });\n }\n \n this.sentInfo = true;\n }\n \n while (stream.available(1)) {\n var buffer = stream.readSingleBuffer(stream.remainingBytes());\n this.dataSize += buffer.length;\n this.emit('data', buffer);\n }\n };\n});\n\nmodule.exports = MP3Demuxer;\n", 29 "var MP3FrameHeader = require('./header');\nvar utils = require('./utils');\n\nfunction MP3Frame() {\n this.header = null; // MPEG audio header\n this.options = 0; // decoding options (from stream)\n this.sbsample = utils.makeArray([2, 36, 32]); // synthesis subband filter samples\n this.overlap = utils.makeArray([2, 32, 18]); // Layer III block overlap data\n this.decoders = [];\n}\n\n// included layer decoders are registered here\nMP3Frame.layers = [];\n\nMP3Frame.prototype.decode = function(stream) {\n if (!this.header || !(this.header.flags & MP3FrameHeader.FLAGS.INCOMPLETE))\n this.header = MP3FrameHeader.decode(stream);\n\n this.header.flags &= ~MP3FrameHeader.FLAGS.INCOMPLETE;\n \n // make an instance of the decoder for this layer if needed\n var decoder = this.decoders[this.header.layer - 1];\n if (!decoder) {\n var Layer = MP3Frame.layers[this.header.layer];\n if (!Layer)\n throw new Error(\"Layer \" + this.header.layer + \" is not supported.\");\n \n decoder = this.decoders[this.header.layer - 1] = new Layer();\n }\n \n decoder.decode(stream, this);\n};\n\nmodule.exports = MP3Frame;\n", 30 "var AV = (window.AV);\n\nfunction MP3FrameHeader() {\n this.layer = 0; // audio layer (1, 2, or 3)\n this.mode = 0; // channel mode (see above)\n this.mode_extension = 0; // additional mode info\n this.emphasis = 0; // de-emphasis to use (see above)\n\n this.bitrate = 0; // stream bitrate (bps)\n this.samplerate = 0; // sampling frequency (Hz)\n\n this.crc_check = 0; // frame CRC accumulator\n this.crc_target = 0; // final target CRC checksum\n\n this.flags = 0; // flags (see above)\n this.private_bits = 0; // private bits\n}\n\nconst BITRATES = [\n // MPEG-1\n [ 0, 32000, 64000, 96000, 128000, 160000, 192000, 224000, // Layer I\n 256000, 288000, 320000, 352000, 384000, 416000, 448000 ],\n [ 0, 32000, 48000, 56000, 64000, 80000, 96000, 112000, // Layer II\n 128000, 160000, 192000, 224000, 256000, 320000, 384000 ],\n [ 0, 32000, 40000, 48000, 56000, 64000, 80000, 96000, // Layer III\n 112000, 128000, 160000, 192000, 224000, 256000, 320000 ],\n\n // MPEG-2 LSF\n [ 0, 32000, 48000, 56000, 64000, 80000, 96000, 112000, // Layer I\n 128000, 144000, 160000, 176000, 192000, 224000, 256000 ],\n [ 0, 8000, 16000, 24000, 32000, 40000, 48000, 56000, // Layers\n 64000, 80000, 96000, 112000, 128000, 144000, 160000 ] // II & III\n];\n\nconst SAMPLERATES = [ \n 44100, 48000, 32000 \n];\n\nMP3FrameHeader.FLAGS = {\n NPRIVATE_III: 0x0007, // number of Layer III private bits\n INCOMPLETE : 0x0008, // header but not data is decoded\n\n PROTECTION : 0x0010, // frame has CRC protection\n COPYRIGHT : 0x0020, // frame is copyright\n ORIGINAL : 0x0040, // frame is original (else copy)\n PADDING : 0x0080, // frame has additional slot\n\n I_STEREO : 0x0100, // uses intensity joint stereo\n MS_STEREO : 0x0200, // uses middle/side joint stereo\n FREEFORMAT : 0x0400, // uses free format bitrate\n\n LSF_EXT : 0x1000, // lower sampling freq. extension\n MC_EXT : 0x2000, // multichannel audio extension\n MPEG_2_5_EXT: 0x4000 // MPEG 2.5 (unofficial) extension\n};\n\nconst PRIVATE = {\n HEADER : 0x0100, // header private bit\n III : 0x001f // Layer III private bits (up to 5)\n};\n\nMP3FrameHeader.MODE = {\n SINGLE_CHANNEL: 0, // single channel\n DUAL_CHANNEL : 1, // dual channel\n JOINT_STEREO : 2, // joint (MS/intensity) stereo\n STEREO : 3 // normal LR stereo\n};\n\nconst EMPHASIS = {\n NONE : 0, // no emphasis\n _50_15_US : 1, // 50/15 microseconds emphasis\n CCITT_J_17: 3, // CCITT J.17 emphasis\n RESERVED : 2 // unknown emphasis\n};\n\nMP3FrameHeader.BUFFER_GUARD = 8;\nMP3FrameHeader.BUFFER_MDLEN = (511 + 2048 + MP3FrameHeader.BUFFER_GUARD);\n\nMP3FrameHeader.prototype.copy = function() {\n var clone = new MP3FrameHeader();\n var keys = Object.keys(this);\n \n for (var key in keys) {\n clone[key] = this[key];\n }\n \n return clone;\n}\n\nMP3FrameHeader.prototype.nchannels = function () {\n return this.mode === 0 ? 1 : 2;\n};\n\nMP3FrameHeader.prototype.nbsamples = function() {\n return (this.layer === 1 ? 12 : ((this.layer === 3 && (this.flags & MP3FrameHeader.FLAGS.LSF_EXT)) ? 18 : 36));\n};\n\nMP3FrameHeader.prototype.framesize = function() {\n if (this.bitrate === 0)\n return null;\n \n var padding = (this.flags & MP3FrameHeader.FLAGS.PADDING ? 1 : 0);\n switch (this.layer) {\n case 1:\n var size = (this.bitrate * 12) / this.samplerate | 0;\n return (size + padding) * 4;\n \n case 2:\n var size = (this.bitrate * 144) / this.samplerate | 0;\n return size + padding;\n \n case 3:\n default:\n var lsf = this.flags & MP3FrameHeader.FLAGS.LSF_EXT ? 1 : 0;\n var size = (this.bitrate * 144) / (this.samplerate << lsf) | 0;\n return size + padding;\n }\n};\n\nMP3FrameHeader.prototype.decode = function(stream) {\n this.flags = 0;\n this.private_bits = 0;\n \n // syncword \n stream.advance(11);\n\n // MPEG 2.5 indicator (really part of syncword) \n if (stream.read(1) === 0)\n this.flags |= MP3FrameHeader.FLAGS.MPEG_2_5_EXT;\n\n // ID \n if (stream.read(1) === 0) {\n this.flags |= MP3FrameHeader.FLAGS.LSF_EXT;\n } else if (this.flags & MP3FrameHeader.FLAGS.MPEG_2_5_EXT) {\n throw new AV.UnderflowError(); // LOSTSYNC\n }\n\n // layer \n this.layer = 4 - stream.read(2);\n\n if (this.layer === 4)\n throw new Error('Invalid layer');\n\n // protection_bit \n if (stream.read(1) === 0)\n this.flags |= MP3FrameHeader.FLAGS.PROTECTION;\n\n // bitrate_index \n var index = stream.read(4);\n if (index === 15)\n throw new Error('Invalid bitrate');\n\n if (this.flags & MP3FrameHeader.FLAGS.LSF_EXT) {\n this.bitrate = BITRATES[3 + (this.layer >> 1)][index];\n } else {\n this.bitrate = BITRATES[this.layer - 1][index];\n }\n\n // sampling_frequency \n index = stream.read(2);\n if (index === 3)\n throw new Error('Invalid sampling frequency');\n\n this.samplerate = SAMPLERATES[index];\n\n if (this.flags & MP3FrameHeader.FLAGS.LSF_EXT) {\n this.samplerate /= 2;\n\n if (this.flags & MP3FrameHeader.FLAGS.MPEG_2_5_EXT)\n this.samplerate /= 2;\n }\n\n // padding_bit \n if (stream.read(1))\n this.flags |= MP3FrameHeader.FLAGS.PADDING;\n\n // private_bit \n if (stream.read(1))\n this.private_bits |= PRIVATE.HEADER;\n\n // mode \n this.mode = 3 - stream.read(2);\n\n // mode_extension \n this.mode_extension = stream.read(2);\n\n // copyright \n if (stream.read(1))\n this.flags |= MP3FrameHeader.FLAGS.COPYRIGHT;\n\n // original/copy \n if (stream.read(1))\n this.flags |= MP3FrameHeader.FLAGS.ORIGINAL;\n\n // emphasis \n this.emphasis = stream.read(2);\n\n // crc_check \n if (this.flags & MP3FrameHeader.FLAGS.PROTECTION)\n this.crc_target = stream.read(16);\n};\n\nMP3FrameHeader.decode = function(stream) {\n // synchronize\n var ptr = stream.next_frame;\n var syncing = true;\n var header = null;\n \n while (syncing) {\n syncing = false;\n \n if (stream.sync) {\n if (!stream.available(MP3FrameHeader.BUFFER_GUARD)) {\n stream.next_frame = ptr;\n throw new AV.UnderflowError();\n } else if (!(stream.getU8(ptr) === 0xff && (stream.getU8(ptr + 1) & 0xe0) === 0xe0)) {\n // mark point where frame sync word was expected\n stream.this_frame = ptr;\n stream.next_frame = ptr + 1;\n throw new AV.UnderflowError(); // LOSTSYNC\n }\n } else {\n stream.seek(ptr * 8);\n if (!stream.doSync())\n throw new AV.UnderflowError();\n \n ptr = stream.nextByte();\n }\n \n // begin processing\n stream.this_frame = ptr;\n stream.next_frame = ptr + 1; // possibly bogus sync word\n \n stream.seek(stream.this_frame * 8);\n \n header = new MP3FrameHeader();\n header.decode(stream);\n \n if (header.bitrate === 0) {\n if (stream.freerate === 0 || !stream.sync || (header.layer === 3 && stream.freerate > 640000))\n MP3FrameHeader.free_bitrate(stream, header);\n \n header.bitrate = stream.freerate;\n header.flags |= MP3FrameHeader.FLAGS.FREEFORMAT;\n }\n \n // calculate beginning of next frame\n var pad_slot = (header.flags & MP3FrameHeader.FLAGS.PADDING) ? 1 : 0;\n \n if (header.layer === 1) {\n var N = (((12 * header.bitrate / header.samplerate) << 0) + pad_slot) * 4;\n } else {\n var slots_per_frame = (header.layer === 3 && (header.flags & MP3FrameHeader.FLAGS.LSF_EXT)) ? 72 : 144;\n var N = ((slots_per_frame * header.bitrate / header.samplerate) << 0) + pad_slot;\n }\n \n // verify there is enough data left in buffer to decode this frame\n if (!stream.available(N + MP3FrameHeader.BUFFER_GUARD)) {\n stream.next_frame = stream.this_frame;\n throw new AV.UnderflowError();\n }\n \n stream.next_frame = stream.this_frame + N;\n \n if (!stream.sync) {\n // check that a valid frame header follows this frame\n ptr = stream.next_frame;\n \n if (!(stream.getU8(ptr) === 0xff && (stream.getU8(ptr + 1) & 0xe0) === 0xe0)) {\n ptr = stream.next_frame = stream.this_frame + 1;\n\n // emulating 'goto sync'\n syncing = true;\n continue;\n }\n \n stream.sync = true;\n }\n }\n \n header.flags |= MP3FrameHeader.FLAGS.INCOMPLETE;\n return header;\n};\n\nMP3FrameHeader.free_bitrate = function(stream, header) {\n var pad_slot = header.flags & MP3FrameHeader.FLAGS.PADDING ? 1 : 0,\n slots_per_frame = header.layer === 3 && header.flags & MP3FrameHeader.FLAGS.LSF_EXT ? 72 : 144;\n \n var start = stream.offset();\n var rate = 0;\n \n while (stream.doSync()) {\n var peek_header = header.copy();\n var peek_stream = stream.copy();\n \n if (peek_header.decode(peek_stream) && peek_header.layer === header.layer && peek_header.samplerate === header.samplerate) {\n var N = stream.nextByte() - stream.this_frame;\n \n if (header.layer === 1) {\n rate = header.samplerate * (N - 4 * pad_slot + 4) / 48 / 1000 | 0;\n } else {\n rate = header.samplerate * (N - pad_slot + 1) / slots_per_frame / 1000 | 0;\n }\n \n if (rate >= 8)\n break;\n }\n \n stream.advance(8);\n }\n \n stream.seek(start);\n \n if (rate < 8 || (header.layer === 3 && rate > 640))\n throw new AV.UnderflowError(); // LOSTSYNC\n \n stream.freerate = rate * 1000;\n};\n\nmodule.exports = MP3FrameHeader;\n", 31 "/*\n * These are the Huffman code words for Layer III.\n * The data for these tables are derived from Table B.7 of ISO/IEC 11172-3.\n *\n * These tables support decoding up to 4 Huffman code bits at a time.\n */\n\nvar PTR = function(offs, bits) {\n return {\n final: 0,\n ptr: {\n bits: bits,\n offset: offs\n }\n };\n};\n\nvar huffquad_V = function (v, w, x, y, hlen) {\n return {\n final: 1,\n value: {\n v: v,\n w: w,\n x: x,\n y: y,\n hlen: hlen\n }\n };\n};\n\nconst hufftabA = [\n /* 0000 */ PTR(16, 2),\n /* 0001 */ PTR(20, 2),\n /* 0010 */ PTR(24, 1),\n /* 0011 */ PTR(26, 1),\n /* 0100 */ huffquad_V(0, 0, 1, 0, 4),\n /* 0101 */ huffquad_V(0, 0, 0, 1, 4),\n /* 0110 */ huffquad_V(0, 1, 0, 0, 4),\n /* 0111 */ huffquad_V(1, 0, 0, 0, 4),\n /* 1000 */ huffquad_V(0, 0, 0, 0, 1),\n /* 1001 */ huffquad_V(0, 0, 0, 0, 1),\n /* 1010 */ huffquad_V(0, 0, 0, 0, 1),\n /* 1011 */ huffquad_V(0, 0, 0, 0, 1),\n /* 1100 */ huffquad_V(0, 0, 0, 0, 1),\n /* 1101 */ huffquad_V(0, 0, 0, 0, 1),\n /* 1110 */ huffquad_V(0, 0, 0, 0, 1),\n /* 1111 */ huffquad_V(0, 0, 0, 0, 1),\n\n /* 0000 ... */\n /* 00 */ huffquad_V(1, 0, 1, 1, 2),\t/* 16 */\n /* 01 */ huffquad_V(1, 1, 1, 1, 2),\n /* 10 */ huffquad_V(1, 1, 0, 1, 2),\n /* 11 */ huffquad_V(1, 1, 1, 0, 2),\n\n /* 0001 ... */\n /* 00 */ huffquad_V(0, 1, 1, 1, 2),\t/* 20 */\n /* 01 */ huffquad_V(0, 1, 0, 1, 2),\n /* 10 */ huffquad_V(1, 0, 0, 1, 1),\n /* 11 */ huffquad_V(1, 0, 0, 1, 1),\n\n /* 0010 ... */\n /* 0 */ huffquad_V(0, 1, 1, 0, 1),\t/* 24 */\n /* 1 */ huffquad_V(0, 0, 1, 1, 1),\n\n /* 0011 ... */\n /* 0 */ huffquad_V(1, 0, 1, 0, 1),\t/* 26 */\n /* 1 */ huffquad_V(1, 1, 0, 0, 1)\n];\n\nconst hufftabB = [\n /* 0000 */ huffquad_V(1, 1, 1, 1, 4),\n /* 0001 */ huffquad_V(1, 1, 1, 0, 4),\n /* 0010 */ huffquad_V(1, 1, 0, 1, 4),\n /* 0011 */ huffquad_V(1, 1, 0, 0, 4),\n /* 0100 */ huffquad_V(1, 0, 1, 1, 4),\n /* 0101 */ huffquad_V(1, 0, 1, 0, 4),\n /* 0110 */ huffquad_V(1, 0, 0, 1, 4),\n /* 0111 */ huffquad_V(1, 0, 0, 0, 4),\n /* 1000 */ huffquad_V(0, 1, 1, 1, 4),\n /* 1001 */ huffquad_V(0, 1, 1, 0, 4),\n /* 1010 */ huffquad_V(0, 1, 0, 1, 4),\n /* 1011 */ huffquad_V(0, 1, 0, 0, 4),\n /* 1100 */ huffquad_V(0, 0, 1, 1, 4),\n /* 1101 */ huffquad_V(0, 0, 1, 0, 4),\n /* 1110 */ huffquad_V(0, 0, 0, 1, 4),\n /* 1111 */ huffquad_V(0, 0, 0, 0, 4)\n];\n\nvar V = function (x, y, hlen) {\n return {\n final: 1,\n value: {\n x: x,\n y: y,\n hlen: hlen\n }\n };\n};\n\nconst hufftab0 = [\n /* */ V(0, 0, 0)\n];\n\nconst hufftab1 = [\n /* 000 */ V(1, 1, 3),\n /* 001 */ V(0, 1, 3),\n /* 010 */ V(1, 0, 2),\n /* 011 */ V(1, 0, 2),\n /* 100 */ V(0, 0, 1),\n /* 101 */ V(0, 0, 1),\n /* 110 */ V(0, 0, 1),\n /* 111 */ V(0, 0, 1)\n];\n\nconst hufftab2 = [\n /* 000 */ PTR(8, 3),\n /* 001 */ V(1, 1, 3),\n /* 010 */ V(0, 1, 3),\n /* 011 */ V(1, 0, 3),\n /* 100 */ V(0, 0, 1),\n /* 101 */ V(0, 0, 1),\n /* 110 */ V(0, 0, 1),\n /* 111 */ V(0, 0, 1),\n\n /* 000 ... */\n /* 000 */ V(2, 2, 3),\t/* 8 */\n /* 001 */ V(0, 2, 3),\n /* 010 */ V(1, 2, 2),\n /* 011 */ V(1, 2, 2),\n /* 100 */ V(2, 1, 2),\n /* 101 */ V(2, 1, 2),\n /* 110 */ V(2, 0, 2),\n /* 111 */ V(2, 0, 2)\n];\n\nconst hufftab3 = [\n /* 000 */ PTR(8, 3),\n /* 001 */ V(1, 0, 3),\n /* 010 */ V(1, 1, 2),\n /* 011 */ V(1, 1, 2),\n /* 100 */ V(0, 1, 2),\n /* 101 */ V(0, 1, 2),\n /* 110 */ V(0, 0, 2),\n /* 111 */ V(0, 0, 2),\n\n /* 000 ... */\n /* 000 */ V(2, 2, 3),\t/* 8 */\n /* 001 */ V(0, 2, 3),\n /* 010 */ V(1, 2, 2),\n /* 011 */ V(1, 2, 2),\n /* 100 */ V(2, 1, 2),\n /* 101 */ V(2, 1, 2),\n /* 110 */ V(2, 0, 2),\n /* 111 */ V(2, 0, 2)\n];\n\nconst hufftab5 = [\n /* 000 */ PTR(8, 4),\n /* 001 */ V(1, 1, 3),\n /* 010 */ V(0, 1, 3),\n /* 011 */ V(1, 0, 3),\n /* 100 */ V(0, 0, 1),\n /* 101 */ V(0, 0, 1),\n /* 110 */ V(0, 0, 1),\n /* 111 */ V(0, 0, 1),\n\n /* 000 ... */\n /* 0000 */ PTR(24, 1),\t/* 8 */\n /* 0001 */ V(3, 2, 4),\n /* 0010 */ V(3, 1, 3),\n /* 0011 */ V(3, 1, 3),\n /* 0100 */ V(1, 3, 4),\n /* 0101 */ V(0, 3, 4),\n /* 0110 */ V(3, 0, 4),\n /* 0111 */ V(2, 2, 4),\n /* 1000 */ V(1, 2, 3),\n /* 1001 */ V(1, 2, 3),\n /* 1010 */ V(2, 1, 3),\n /* 1011 */ V(2, 1, 3),\n /* 1100 */ V(0, 2, 3),\n /* 1101 */ V(0, 2, 3),\n /* 1110 */ V(2, 0, 3),\n /* 1111 */ V(2, 0, 3),\n\n /* 000 0000 ... */\n /* 0 */ V(3, 3, 1),\t/* 24 */\n /* 1 */ V(2, 3, 1)\n];\n\nconst hufftab6 = [\n /* 0000 */ PTR(16, 3),\n /* 0001 */ PTR(24, 1),\n /* 0010 */ PTR(26, 1),\n /* 0011 */ V(1, 2, 4),\n /* 0100 */ V(2, 1, 4),\n /* 0101 */ V(2, 0, 4),\n /* 0110 */ V(0, 1, 3),\n /* 0111 */ V(0, 1, 3),\n /* 1000 */ V(1, 1, 2),\n /* 1001 */ V(1, 1, 2),\n /* 1010 */ V(1, 1, 2),\n /* 1011 */ V(1, 1, 2),\n /* 1100 */ V(1, 0, 3),\n /* 1101 */ V(1, 0, 3),\n /* 1110 */ V(0, 0, 3),\n /* 1111 */ V(0, 0, 3),\n\n /* 0000 ... */\n /* 000 */ V(3, 3, 3),\t/* 16 */\n /* 001 */ V(0, 3, 3),\n /* 010 */ V(2, 3, 2),\n /* 011 */ V(2, 3, 2),\n /* 100 */ V(3, 2, 2),\n /* 101 */ V(3, 2, 2),\n /* 110 */ V(3, 0, 2),\n /* 111 */ V(3, 0, 2),\n\n /* 0001 ... */\n /* 0 */ V(1, 3, 1),\t/* 24 */\n /* 1 */ V(3, 1, 1),\n\n /* 0010 ... */\n /* 0 */ V(2, 2, 1),\t/* 26 */\n /* 1 */ V(0, 2, 1)\n];\n\nconst hufftab7 = [\n /* 0000 */ PTR(16, 4),\n /* 0001 */ PTR(32, 4),\n /* 0010 */ PTR(48, 2),\n /* 0011 */ V(1, 1, 4),\n /* 0100 */ V(0, 1, 3),\n /* 0101 */ V(0, 1, 3),\n /* 0110 */ V(1, 0, 3),\n /* 0111 */ V(1, 0, 3),\n /* 1000 */ V(0, 0, 1),\n /* 1001 */ V(0, 0, 1),\n /* 1010 */ V(0, 0, 1),\n /* 1011 */ V(0, 0, 1),\n /* 1100 */ V(0, 0, 1),\n /* 1101 */ V(0, 0, 1),\n /* 1110 */ V(0, 0, 1),\n /* 1111 */ V(0, 0, 1),\n\n /* 0000 ... */\n /* 0000 */ PTR(52, 2),\t/* 16 */\n /* 0001 */ PTR(56, 1),\n /* 0010 */ PTR(58, 1),\n /* 0011 */ V(1, 5, 4),\n /* 0100 */ V(5, 1, 4),\n /* 0101 */ PTR(60, 1),\n /* 0110 */ V(5, 0, 4),\n /* 0111 */ PTR(62, 1),\n /* 1000 */ V(2, 4, 4),\n /* 1001 */ V(4, 2, 4),\n /* 1010 */ V(1, 4, 3),\n /* 1011 */ V(1, 4, 3),\n /* 1100 */ V(4, 1, 3),\n /* 1101 */ V(4, 1, 3),\n /* 1110 */ V(4, 0, 3),\n /* 1111 */ V(4, 0, 3),\n\n /* 0001 ... */\n /* 0000 */ V(0, 4, 4),\t/* 32 */\n /* 0001 */ V(2, 3, 4),\n /* 0010 */ V(3, 2, 4),\n /* 0011 */ V(0, 3, 4),\n /* 0100 */ V(1, 3, 3),\n /* 0101 */ V(1, 3, 3),\n /* 0110 */ V(3, 1, 3),\n /* 0111 */ V(3, 1, 3),\n /* 1000 */ V(3, 0, 3),\n /* 1001 */ V(3, 0, 3),\n /* 1010 */ V(2, 2, 3),\n /* 1011 */ V(2, 2, 3),\n /* 1100 */ V(1, 2, 2),\n /* 1101 */ V(1, 2, 2),\n /* 1110 */ V(1, 2, 2),\n /* 1111 */ V(1, 2, 2),\n\n /* 0010 ... */\n /* 00 */ V(2, 1, 1),\t/* 48 */\n /* 01 */ V(2, 1, 1),\n /* 10 */ V(0, 2, 2),\n /* 11 */ V(2, 0, 2),\n\n /* 0000 0000 ... */\n /* 00 */ V(5, 5, 2),\t/* 52 */\n /* 01 */ V(4, 5, 2),\n /* 10 */ V(5, 4, 2),\n /* 11 */ V(5, 3, 2),\n\n /* 0000 0001 ... */\n /* 0 */ V(3, 5, 1),\t/* 56 */\n /* 1 */ V(4, 4, 1),\n\n /* 0000 0010 ... */\n /* 0 */ V(2, 5, 1),\t/* 58 */\n /* 1 */ V(5, 2, 1),\n\n /* 0000 0101 ... */\n /* 0 */ V(0, 5, 1),\t/* 60 */\n /* 1 */ V(3, 4, 1),\n\n /* 0000 0111 ... */\n /* 0 */ V(4, 3, 1),\t/* 62 */\n /* 1 */ V(3, 3, 1)\n];\n\nconst hufftab8 = [\n /* 0000 */ PTR(16, 4),\n /* 0001 */ PTR(32, 4),\n /* 0010 */ V(1, 2, 4),\n /* 0011 */ V(2, 1, 4),\n /* 0100 */ V(1, 1, 2),\n /* 0101 */ V(1, 1, 2),\n /* 0110 */ V(1, 1, 2),\n /* 0111 */ V(1, 1, 2),\n /* 1000 */ V(0, 1, 3),\n /* 1001 */ V(0, 1, 3),\n /* 1010 */ V(1, 0, 3),\n /* 1011 */ V(1, 0, 3),\n /* 1100 */ V(0, 0, 2),\n /* 1101 */ V(0, 0, 2),\n /* 1110 */ V(0, 0, 2),\n /* 1111 */ V(0, 0, 2),\n\n /* 0000 ... */\n /* 0000 */ PTR(48, 3),\t/* 16 */\n /* 0001 */ PTR(56, 2),\n /* 0010 */ PTR(60, 1),\n /* 0011 */ V(1, 5, 4),\n /* 0100 */ V(5, 1, 4),\n /* 0101 */ PTR(62, 1),\n /* 0110 */ PTR(64, 1),\n /* 0111 */ V(2, 4, 4),\n /* 1000 */ V(4, 2, 4),\n /* 1001 */ V(1, 4, 4),\n /* 1010 */ V(4, 1, 3),\n /* 1011 */ V(4, 1, 3),\n /* 1100 */ V(0, 4, 4),\n /* 1101 */ V(4, 0, 4),\n /* 1110 */ V(2, 3, 4),\n /* 1111 */ V(3, 2, 4),\n\n /* 0001 ... */\n /* 0000 */ V(1, 3, 4),\t/* 32 */\n /* 0001 */ V(3, 1, 4),\n /* 0010 */ V(0, 3, 4),\n /* 0011 */ V(3, 0, 4),\n /* 0100 */ V(2, 2, 2),\n /* 0101 */ V(2, 2, 2),\n /* 0110 */ V(2, 2, 2),\n /* 0111 */ V(2, 2, 2),\n /* 1000 */ V(0, 2, 2),\n /* 1001 */ V(0, 2, 2),\n /* 1010 */ V(0, 2, 2),\n /* 1011 */ V(0, 2, 2),\n /* 1100 */ V(2, 0, 2),\n /* 1101 */ V(2, 0, 2),\n /* 1110 */ V(2, 0, 2),\n /* 1111 */ V(2, 0, 2),\n\n /* 0000 0000 ... */\n /* 000 */ V(5, 5, 3),\t/* 48 */\n /* 001 */ V(5, 4, 3),\n /* 010 */ V(4, 5, 2),\n /* 011 */ V(4, 5, 2),\n /* 100 */ V(5, 3, 1),\n /* 101 */ V(5, 3, 1),\n /* 110 */ V(5, 3, 1),\n /* 111 */ V(5, 3, 1),\n\n /* 0000 0001 ... */\n /* 00 */ V(3, 5, 2),\t/* 56 */\n /* 01 */ V(4, 4, 2),\n /* 10 */ V(2, 5, 1),\n /* 11 */ V(2, 5, 1),\n\n /* 0000 0010 ... */\n /* 0 */ V(5, 2, 1),\t/* 60 */\n /* 1 */ V(0, 5, 1),\n\n /* 0000 0101 ... */\n /* 0 */ V(3, 4, 1),\t/* 62 */\n /* 1 */ V(4, 3, 1),\n\n /* 0000 0110 ... */\n /* 0 */ V(5, 0, 1),\t/* 64 */\n /* 1 */ V(3, 3, 1)\n];\n\nconst hufftab9 = [\n /* 0000 */ PTR(16, 4),\n /* 0001 */ PTR(32, 3),\n /* 0010 */ PTR(40, 2),\n /* 0011 */ PTR(44, 2),\n /* 0100 */ PTR(48, 1),\n /* 0101 */ V(1, 2, 4),\n /* 0110 */ V(2, 1, 4),\n /* 0111 */ V(2, 0, 4),\n /* 1000 */ V(1, 1, 3),\n /* 1001 */ V(1, 1, 3),\n /* 1010 */ V(0, 1, 3),\n /* 1011 */ V(0, 1, 3),\n /* 1100 */ V(1, 0, 3),\n /* 1101 */ V(1, 0, 3),\n /* 1110 */ V(0, 0, 3),\n /* 1111 */ V(0, 0, 3),\n\n /* 0000 ... */\n /* 0000 */ PTR(50, 1),\t/* 16 */\n /* 0001 */ V(3, 5, 4),\n /* 0010 */ V(5, 3, 4),\n /* 0011 */ PTR(52, 1),\n /* 0100 */ V(4, 4, 4),\n /* 0101 */ V(2, 5, 4),\n /* 0110 */ V(5, 2, 4),\n /* 0111 */ V(1, 5, 4),\n /* 1000 */ V(5, 1, 3),\n /* 1001 */ V(5, 1, 3),\n /* 1010 */ V(3, 4, 3),\n /* 1011 */ V(3, 4, 3),\n /* 1100 */ V(4, 3, 3),\n /* 1101 */ V(4, 3, 3),\n /* 1110 */ V(5, 0, 4),\n /* 1111 */ V(0, 4, 4),\n\n /* 0001 ... */\n /* 000 */ V(2, 4, 3),\t/* 32 */\n /* 001 */ V(4, 2, 3),\n /* 010 */ V(3, 3, 3),\n /* 011 */ V(4, 0, 3),\n /* 100 */ V(1, 4, 2),\n /* 101 */ V(1, 4, 2),\n /* 110 */ V(4, 1, 2),\n /* 111 */ V(4, 1, 2),\n\n /* 0010 ... */\n /* 00 */ V(2, 3, 2),\t/* 40 */\n /* 01 */ V(3, 2, 2),\n /* 10 */ V(1, 3, 1),\n /* 11 */ V(1, 3, 1),\n\n /* 0011 ... */\n /* 00 */ V(3, 1, 1),\t/* 44 */\n /* 01 */ V(3, 1, 1),\n /* 10 */ V(0, 3, 2),\n /* 11 */ V(3, 0, 2),\n\n /* 0100 ... */\n /* 0 */ V(2, 2, 1),\t/* 48 */\n /* 1 */ V(0, 2, 1),\n\n /* 0000 0000 ... */\n /* 0 */ V(5, 5, 1),\t/* 50 */\n /* 1 */ V(4, 5, 1),\n\n /* 0000 0011 ... */\n /* 0 */ V(5, 4, 1),\t/* 52 */\n /* 1 */ V(0, 5, 1)\n];\n\nconst hufftab10 = [\n /* 0000 */ PTR(16, 4),\n /* 0001 */ PTR(32, 4),\n /* 0010 */ PTR(48, 2),\n /* 0011 */ V(1, 1, 4),\n /* 0100 */ V(0, 1, 3),\n /* 0101 */ V(0, 1, 3),\n /* 0110 */ V(1, 0, 3),\n /* 0111 */ V(1, 0, 3),\n /* 1000 */ V(0, 0, 1),\n /* 1001 */ V(0, 0, 1),\n /* 1010 */ V(0, 0, 1),\n /* 1011 */ V(0, 0, 1),\n /* 1100 */ V(0, 0, 1),\n /* 1101 */ V(0, 0, 1),\n /* 1110 */ V(0, 0, 1),\n /* 1111 */ V(0, 0, 1),\n\n /* 0000 ... */\n /* 0000 */ PTR(52, 3),\t/* 16 */\n /* 0001 */ PTR(60, 2),\n /* 0010 */ PTR(64, 3),\n /* 0011 */ PTR(72, 1),\n /* 0100 */ PTR(74, 2),\n /* 0101 */ PTR(78, 2),\n /* 0110 */ PTR(82, 2),\n /* 0111 */ V(1, 7, 4),\n /* 1000 */ V(7, 1, 4),\n /* 1001 */ PTR(86, 1),\n /* 1010 */ PTR(88, 2),\n /* 1011 */ PTR(92, 2),\n /* 1100 */ V(1, 6, 4),\n /* 1101 */ V(6, 1, 4),\n /* 1110 */ V(6, 0, 4),\n /* 1111 */ PTR(96, 1),\n\n /* 0001 ... */\n /* 0000 */ PTR(98, 1),\t/* 32 */\n /* 0001 */ PTR(100, 1),\n /* 0010 */ V(1, 4, 4),\n /* 0011 */ V(4, 1, 4),\n /* 0100 */ V(4, 0, 4),\n /* 0101 */ V(2, 3, 4),\n /* 0110 */ V(3, 2, 4),\n /* 0111 */ V(0, 3, 4),\n /* 1000 */ V(1, 3, 3),\n /* 1001 */ V(1, 3, 3),\n /* 1010 */ V(3, 1, 3),\n /* 1011 */ V(3, 1, 3),\n /* 1100 */ V(3, 0, 3),\n /* 1101 */ V(3, 0, 3),\n /* 1110 */ V(2, 2, 3),\n /* 1111 */ V(2, 2, 3),\n\n /* 0010 ... */\n /* 00 */ V(1, 2, 2),\t/* 48 */\n /* 01 */ V(2, 1, 2),\n /* 10 */ V(0, 2, 2),\n /* 11 */ V(2, 0, 2),\n\n /* 0000 0000 ... */\n /* 000 */ V(7, 7, 3),\t/* 52 */\n /* 001 */ V(6, 7, 3),\n /* 010 */ V(7, 6, 3),\n /* 011 */ V(5, 7, 3),\n /* 100 */ V(7, 5, 3),\n /* 101 */ V(6, 6, 3),\n /* 110 */ V(4, 7, 2),\n /* 111 */ V(4, 7, 2),\n\n /* 0000 0001 ... */\n /* 00 */ V(7, 4, 2),\t/* 60 */\n /* 01 */ V(5, 6, 2),\n /* 10 */ V(6, 5, 2),\n /* 11 */ V(3, 7, 2),\n\n /* 0000 0010 ... */\n /* 000 */ V(7, 3, 2),\t/* 64 */\n /* 001 */ V(7, 3, 2),\n /* 010 */ V(4, 6, 2),\n /* 011 */ V(4, 6, 2),\n /* 100 */ V(5, 5, 3),\n /* 101 */ V(5, 4, 3),\n /* 110 */ V(6, 3, 2),\n /* 111 */ V(6, 3, 2),\n\n /* 0000 0011 ... */\n /* 0 */ V(2, 7, 1),\t/* 72 */\n /* 1 */ V(7, 2, 1),\n\n /* 0000 0100 ... */\n /* 00 */ V(6, 4, 2),\t/* 74 */\n /* 01 */ V(0, 7, 2),\n /* 10 */ V(7, 0, 1),\n /* 11 */ V(7, 0, 1),\n\n /* 0000 0101 ... */\n /* 00 */ V(6, 2, 1),\t/* 78 */\n /* 01 */ V(6, 2, 1),\n /* 10 */ V(4, 5, 2),\n /* 11 */ V(3, 5, 2),\n\n /* 0000 0110 ... */\n /* 00 */ V(0, 6, 1),\t/* 82 */\n /* 01 */ V(0, 6, 1),\n /* 10 */ V(5, 3, 2),\n /* 11 */ V(4, 4, 2),\n\n /* 0000 1001 ... */\n /* 0 */ V(3, 6, 1),\t/* 86 */\n /* 1 */ V(2, 6, 1),\n\n /* 0000 1010 ... */\n /* 00 */ V(2, 5, 2),\t/* 88 */\n /* 01 */ V(5, 2, 2),\n /* 10 */ V(1, 5, 1),\n /* 11 */ V(1, 5, 1),\n\n /* 0000 1011 ... */\n /* 00 */ V(5, 1, 1),\t/* 92 */\n /* 01 */ V(5, 1, 1),\n /* 10 */ V(3, 4, 2),\n /* 11 */ V(4, 3, 2),\n\n /* 0000 1111 ... */\n /* 0 */ V(0, 5, 1),\t/* 96 */\n /* 1 */ V(5, 0, 1),\n\n /* 0001 0000 ... */\n /* 0 */ V(2, 4, 1),\t/* 98 */\n /* 1 */ V(4, 2, 1),\n\n /* 0001 0001 ... */\n /* 0 */ V(3, 3, 1),\t/* 100 */\n /* 1 */ V(0, 4, 1)\n];\n\nconst hufftab11 = [\n /* 0000 */ PTR(16, 4),\n /* 0001 */ PTR(32, 4),\n /* 0010 */ PTR(48, 4),\n /* 0011 */ PTR(64, 3),\n /* 0100 */ V(1, 2, 4),\n /* 0101 */ PTR(72, 1),\n /* 0110 */ V(1, 1, 3),\n /* 0111 */ V(1, 1, 3),\n /* 1000 */ V(0, 1, 3),\n /* 1001 */ V(0, 1, 3),\n /* 1010 */ V(1, 0, 3),\n /* 1011 */ V(1, 0, 3),\n /* 1100 */ V(0, 0, 2),\n /* 1101 */ V(0, 0, 2),\n /* 1110 */ V(0, 0, 2),\n /* 1111 */ V(0, 0, 2),\n\n /* 0000 ... */\n /* 0000 */ PTR(74, 2),\t/* 16 */\n /* 0001 */ PTR(78, 3),\n /* 0010 */ PTR(86, 2),\n /* 0011 */ PTR(90, 1),\n /* 0100 */ PTR(92, 2),\n /* 0101 */ V(2, 7, 4),\n /* 0110 */ V(7, 2, 4),\n /* 0111 */ PTR(96, 1),\n /* 1000 */ V(7, 1, 3),\n /* 1001 */ V(7, 1, 3),\n /* 1010 */ V(1, 7, 4),\n /* 1011 */ V(7, 0, 4),\n /* 1100 */ V(3, 6, 4),\n /* 1101 */ V(6, 3, 4),\n /* 1110 */ V(6, 0, 4),\n /* 1111 */ PTR(98, 1),\n\n /* 0001 ... */\n /* 0000 */ PTR(100, 1),\t/* 32 */\n /* 0001 */ V(1, 5, 4),\n /* 0010 */ V(6, 2, 3),\n /* 0011 */ V(6, 2, 3),\n /* 0100 */ V(2, 6, 4),\n /* 0101 */ V(0, 6, 4),\n /* 0110 */ V(1, 6, 3),\n /* 0111 */ V(1, 6, 3),\n /* 1000 */ V(6, 1, 3),\n /* 1001 */ V(6, 1, 3),\n /* 1010 */ V(5, 1, 4),\n /* 1011 */ V(3, 4, 4),\n /* 1100 */ V(5, 0, 4),\n /* 1101 */ PTR(102, 1),\n /* 1110 */ V(2, 4, 4),\n /* 1111 */ V(4, 2, 4),\n\n /* 0010 ... */\n /* 0000 */ V(1, 4, 4),\t/* 48 */\n /* 0001 */ V(4, 1, 4),\n /* 0010 */ V(0, 4, 4),\n /* 0011 */ V(4, 0, 4),\n /* 0100 */ V(2, 3, 3),\n /* 0101 */ V(2, 3, 3),\n /* 0110 */ V(3, 2, 3),\n /* 0111 */ V(3, 2, 3),\n /* 1000 */ V(1, 3, 2),\n /* 1001 */ V(1, 3, 2),\n /* 1010 */ V(1, 3, 2),\n /* 1011 */ V(1, 3, 2),\n /* 1100 */ V(3, 1, 2),\n /* 1101 */ V(3, 1, 2),\n /* 1110 */ V(3, 1, 2),\n /* 1111 */ V(3, 1, 2),\n\n /* 0011 ... */\n /* 000 */ V(0, 3, 3),\t/* 64 */\n /* 001 */ V(3, 0, 3),\n /* 010 */ V(2, 2, 2),\n /* 011 */ V(2, 2, 2),\n /* 100 */ V(2, 1, 1),\n /* 101 */ V(2, 1, 1),\n /* 110 */ V(2, 1, 1),\n /* 111 */ V(2, 1, 1),\n\n /* 0101 ... */\n /* 0 */ V(0, 2, 1),\t/* 72 */\n /* 1 */ V(2, 0, 1),\n\n /* 0000 0000 ... */\n /* 00 */ V(7, 7, 2),\t/* 74 */\n /* 01 */ V(6, 7, 2),\n /* 10 */ V(7, 6, 2),\n /* 11 */ V(7, 5, 2),\n\n /* 0000 0001 ... */\n /* 000 */ V(6, 6, 2),\t/* 78 */\n /* 001 */ V(6, 6, 2),\n /* 010 */ V(4, 7, 2),\n /* 011 */ V(4, 7, 2),\n /* 100 */ V(7, 4, 2),\n /* 101 */ V(7, 4, 2),\n /* 110 */ V(5, 7, 3),\n /* 111 */ V(5, 5, 3),\n\n /* 0000 0010 ... */\n /* 00 */ V(5, 6, 2),\t/* 86 */\n /* 01 */ V(6, 5, 2),\n /* 10 */ V(3, 7, 1),\n /* 11 */ V(3, 7, 1),\n\n /* 0000 0011 ... */\n /* 0 */ V(7, 3, 1),\t/* 90 */\n /* 1 */ V(4, 6, 1),\n\n /* 0000 0100 ... */\n /* 00 */ V(4, 5, 2),\t/* 92 */\n /* 01 */ V(5, 4, 2),\n /* 10 */ V(3, 5, 2),\n /* 11 */ V(5, 3, 2),\n\n /* 0000 0111 ... */\n /* 0 */ V(6, 4, 1),\t/* 96 */\n /* 1 */ V(0, 7, 1),\n\n /* 0000 1111 ... */\n /* 0 */ V(4, 4, 1),\t/* 98 */\n /* 1 */ V(2, 5, 1),\n\n /* 0001 0000 ... */\n /* 0 */ V(5, 2, 1),\t/* 100 */\n /* 1 */ V(0, 5, 1),\n\n /* 0001 1101 ... */\n /* 0 */ V(4, 3, 1),\t/* 102 */\n /* 1 */ V(3, 3, 1)\n];\n\nconst hufftab12 = [\n /* 0000 */ PTR(16, 4),\n /* 0001 */ PTR(32, 4),\n /* 0010 */ PTR(48, 4),\n /* 0011 */ PTR(64, 2),\n /* 0100 */ PTR(68, 3),\n /* 0101 */ PTR(76, 1),\n /* 0110 */ V(1, 2, 4),\n /* 0111 */ V(2, 1, 4),\n /* 1000 */ PTR(78, 1),\n /* 1001 */ V(0, 0, 4),\n /* 1010 */ V(1, 1, 3),\n /* 1011 */ V(1, 1, 3),\n /* 1100 */ V(0, 1, 3),\n /* 1101 */ V(0, 1, 3),\n /* 1110 */ V(1, 0, 3),\n /* 1111 */ V(1, 0, 3),\n\n /* 0000 ... */\n /* 0000 */ PTR(80, 2),\t/* 16 */\n /* 0001 */ PTR(84, 1),\n /* 0010 */ PTR(86, 1),\n /* 0011 */ PTR(88, 1),\n /* 0100 */ V(5, 6, 4),\n /* 0101 */ V(3, 7, 4),\n /* 0110 */ PTR(90, 1),\n /* 0111 */ V(2, 7, 4),\n /* 1000 */ V(7, 2, 4),\n /* 1001 */ V(4, 6, 4),\n /* 1010 */ V(6, 4, 4),\n /* 1011 */ V(1, 7, 4),\n /* 1100 */ V(7, 1, 4),\n /* 1101 */ PTR(92, 1),\n /* 1110 */ V(3, 6, 4),\n /* 1111 */ V(6, 3, 4),\n\n /* 0001 ... */\n /* 0000 */ V(4, 5, 4),\t/* 32 */\n /* 0001 */ V(5, 4, 4),\n /* 0010 */ V(4, 4, 4),\n /* 0011 */ PTR(94, 1),\n /* 0100 */ V(2, 6, 3),\n /* 0101 */ V(2, 6, 3),\n /* 0110 */ V(6, 2, 3),\n /* 0111 */ V(6, 2, 3),\n /* 1000 */ V(6, 1, 3),\n /* 1001 */ V(6, 1, 3),\n /* 1010 */ V(1, 6, 4),\n /* 1011 */ V(6, 0, 4),\n /* 1100 */ V(3, 5, 4),\n /* 1101 */ V(5, 3, 4),\n /* 1110 */ V(2, 5, 4),\n /* 1111 */ V(5, 2, 4),\n\n /* 0010 ... */\n /* 0000 */ V(1, 5, 3),\t/* 48 */\n /* 0001 */ V(1, 5, 3),\n /* 0010 */ V(5, 1, 3),\n /* 0011 */ V(5, 1, 3),\n /* 0100 */ V(3, 4, 3),\n /* 0101 */ V(3, 4, 3),\n /* 0110 */ V(4, 3, 3),\n /* 0111 */ V(4, 3, 3),\n /* 1000 */ V(5, 0, 4),\n /* 1001 */ V(0, 4, 4),\n /* 1010 */ V(2, 4, 3),\n /* 1011 */ V(2, 4, 3),\n /* 1100 */ V(4, 2, 3),\n /* 1101 */ V(4, 2, 3),\n /* 1110 */ V(1, 4, 3),\n /* 1111 */ V(1, 4, 3),\n\n /* 0011 ... */\n /* 00 */ V(3, 3, 2),\t/* 64 */\n /* 01 */ V(4, 1, 2),\n /* 10 */ V(2, 3, 2),\n /* 11 */ V(3, 2, 2),\n\n /* 0100 ... */\n /* 000 */ V(4, 0, 3),\t/* 68 */\n /* 001 */ V(0, 3, 3),\n /* 010 */ V(3, 0, 2),\n /* 011 */ V(3, 0, 2),\n /* 100 */ V(1, 3, 1),\n /* 101 */ V(1, 3, 1),\n /* 110 */ V(1, 3, 1),\n /* 111 */ V(1, 3, 1),\n\n /* 0101 ... */\n /* 0 */ V(3, 1, 1),\t/* 76 */\n /* 1 */ V(2, 2, 1),\n\n /* 1000 ... */\n /* 0 */ V(0, 2, 1),\t/* 78 */\n /* 1 */ V(2, 0, 1),\n\n /* 0000 0000 ... */\n /* 00 */ V(7, 7, 2),\t/* 80 */\n /* 01 */ V(6, 7, 2),\n /* 10 */ V(7, 6, 1),\n /* 11 */ V(7, 6, 1),\n\n /* 0000 0001 ... */\n /* 0 */ V(5, 7, 1),\t/* 84 */\n /* 1 */ V(7, 5, 1),\n\n /* 0000 0010 ... */\n /* 0 */ V(6, 6, 1),\t/* 86 */\n /* 1 */ V(4, 7, 1),\n\n /* 0000 0011 ... */\n /* 0 */ V(7, 4, 1),\t/* 88 */\n /* 1 */ V(6, 5, 1),\n\n /* 0000 0110 ... */\n /* 0 */ V(7, 3, 1),\t/* 90 */\n /* 1 */ V(5, 5, 1),\n\n /* 0000 1101 ... */\n /* 0 */ V(0, 7, 1),\t/* 92 */\n /* 1 */ V(7, 0, 1),\n\n /* 0001 0011 ... */\n /* 0 */ V(0, 6, 1),\t/* 94 */\n /* 1 */ V(0, 5, 1)\n];\n\nconst hufftab13 = [\n /* 0000 */ PTR(16, 4),\n /* 0001 */ PTR(32, 4),\n /* 0010 */ PTR(48, 4),\n /* 0011 */ PTR(64, 2),\n /* 0100 */ V(1, 1, 4),\n /* 0101 */ V(0, 1, 4),\n /* 0110 */ V(1, 0, 3),\n /* 0111 */ V(1, 0, 3),\n /* 1000 */ V(0, 0, 1),\n /* 1001 */ V(0, 0, 1),\n /* 1010 */ V(0, 0, 1),\n /* 1011 */ V(0, 0, 1),\n /* 1100 */ V(0, 0, 1),\n /* 1101 */ V(0, 0, 1),\n /* 1110 */ V(0, 0, 1),\n /* 1111 */ V(0, 0, 1),\n\n /* 0000 ... */\n /* 0000 */ PTR(68, 4),\t/* 16 */\n /* 0001 */ PTR(84, 4),\n /* 0010 */ PTR(100, 4),\n /* 0011 */ PTR(116, 4),\n /* 0100 */ PTR(132, 4),\n /* 0101 */ PTR(148, 4),\n /* 0110 */ PTR(164, 3),\n /* 0111 */ PTR(172, 3),\n /* 1000 */ PTR(180, 3),\n /* 1001 */ PTR(188, 3),\n /* 1010 */ PTR(196, 3),\n /* 1011 */ PTR(204, 3),\n /* 1100 */ PTR(212, 1),\n /* 1101 */ PTR(214, 2),\n /* 1110 */ PTR(218, 3),\n /* 1111 */ PTR(226, 1),\n\n /* 0001 ... */\n /* 0000 */ PTR(228, 2),\t/* 32 */\n /* 0001 */ PTR(232, 2),\n /* 0010 */ PTR(236, 2),\n /* 0011 */ PTR(240, 2),\n /* 0100 */ V(8, 1, 4),\n /* 0101 */ PTR(244, 1),\n /* 0110 */ PTR(246, 1),\n /* 0111 */ PTR(248, 1),\n /* 1000 */ PTR(250, 2),\n /* 1001 */ PTR(254, 1),\n /* 1010 */ V(1, 5, 4),\n /* 1011 */ V(5, 1, 4),\n /* 1100 */ PTR(256, 1),\n /* 1101 */ PTR(258, 1),\n /* 1110 */ PTR(260, 1),\n /* 1111 */ V(1, 4, 4),\n\n /* 0010 ... */\n /* 0000 */ V(4, 1, 3),\t/* 48 */\n /* 0001 */ V(4, 1, 3),\n /* 0010 */ V(0, 4, 4),\n /* 0011 */ V(4, 0, 4),\n /* 0100 */ V(2, 3, 4),\n /* 0101 */ V(3, 2, 4),\n /* 0110 */ V(1, 3, 3),\n /* 0111 */ V(1, 3, 3),\n /* 1000 */ V(3, 1, 3),\n /* 1001 */ V(3, 1, 3),\n /* 1010 */ V(0, 3, 3),\n /* 1011 */ V(0, 3, 3),\n /* 1100 */ V(3, 0, 3),\n /* 1101 */ V(3, 0, 3),\n /* 1110 */ V(2, 2, 3),\n /* 1111 */ V(2, 2, 3),\n\n /* 0011 ... */\n /* 00 */ V(1, 2, 2),\t/* 64 */\n /* 01 */ V(2, 1, 2),\n /* 10 */ V(0, 2, 2),\n /* 11 */ V(2, 0, 2),\n\n /* 0000 0000 ... */\n /* 0000 */ PTR(262, 4),\t/* 68 */\n /* 0001 */ PTR(278, 4),\n /* 0010 */ PTR(294, 4),\n /* 0011 */ PTR(310, 3),\n /* 0100 */ PTR(318, 2),\n /* 0101 */ PTR(322, 2),\n /* 0110 */ PTR(326, 3),\n /* 0111 */ PTR(334, 2),\n /* 1000 */ PTR(338, 1),\n /* 1001 */ PTR(340, 2),\n /* 1010 */ PTR(344, 2),\n /* 1011 */ PTR(348, 2),\n /* 1100 */ PTR(352, 2),\n /* 1101 */ PTR(356, 2),\n /* 1110 */ V(1, 15, 4),\n /* 1111 */ V(15, 1, 4),\n\n /* 0000 0001 ... */\n /* 0000 */ V(15, 0, 4),\t/* 84 */\n /* 0001 */ PTR(360, 1),\n /* 0010 */ PTR(362, 1),\n /* 0011 */ PTR(364, 1),\n /* 0100 */ V(14, 2, 4),\n /* 0101 */ PTR(366, 1),\n /* 0110 */ V(1, 14, 4),\n /* 0111 */ V(14, 1, 4),\n /* 1000 */ PTR(368, 1),\n /* 1001 */ PTR(370, 1),\n /* 1010 */ PTR(372, 1),\n /* 1011 */ PTR(374, 1),\n /* 1100 */ PTR(376, 1),\n /* 1101 */ PTR(378, 1),\n /* 1110 */ V(12, 6, 4),\n /* 1111 */ V(3, 13, 4),\n\n /* 0000 0010 ... */\n /* 0000 */ PTR(380, 1),\t/* 100 */\n /* 0001 */ V(2, 13, 4),\n /* 0010 */ V(13, 2, 4),\n /* 0011 */ V(1, 13, 4),\n /* 0100 */ V(11, 7, 4),\n /* 0101 */ PTR(382, 1),\n /* 0110 */ PTR(384, 1),\n /* 0111 */ V(12, 3, 4),\n /* 1000 */ PTR(386, 1),\n /* 1001 */ V(4, 11, 4),\n /* 1010 */ V(13, 1, 3),\n /* 1011 */ V(13, 1, 3),\n /* 1100 */ V(0, 13, 4),\n /* 1101 */ V(13, 0, 4),\n /* 1110 */ V(8, 10, 4),\n /* 1111 */ V(10, 8, 4),\n\n /* 0000 0011 ... */\n /* 0000 */ V(4, 12, 4),\t/* 116 */\n /* 0001 */ V(12, 4, 4),\n /* 0010 */ V(6, 11, 4),\n /* 0011 */ V(11, 6, 4),\n /* 0100 */ V(3, 12, 3),\n /* 0101 */ V(3, 12, 3),\n /* 0110 */ V(2, 12, 3),\n /* 0111 */ V(2, 12, 3),\n /* 1000 */ V(12, 2, 3),\n /* 1001 */ V(12, 2, 3),\n /* 1010 */ V(5, 11, 3),\n /* 1011 */ V(5, 11, 3),\n /* 1100 */ V(11, 5, 4),\n /* 1101 */ V(8, 9, 4),\n /* 1110 */ V(1, 12, 3),\n /* 1111 */ V(1, 12, 3),\n\n /* 0000 0100 ... */\n /* 0000 */ V(12, 1, 3),\t/* 132 */\n /* 0001 */ V(12, 1, 3),\n /* 0010 */ V(9, 8, 4),\n /* 0011 */ V(0, 12, 4),\n /* 0100 */ V(12, 0, 3),\n /* 0101 */ V(12, 0, 3),\n /* 0110 */ V(11, 4, 4),\n /* 0111 */ V(6, 10, 4),\n /* 1000 */ V(10, 6, 4),\n /* 1001 */ V(7, 9, 4),\n /* 1010 */ V(3, 11, 3),\n /* 1011 */ V(3, 11, 3),\n /* 1100 */ V(11, 3, 3),\n /* 1101 */ V(11, 3, 3),\n /* 1110 */ V(8, 8, 4),\n /* 1111 */ V(5, 10, 4),\n\n /* 0000 0101 ... */\n /* 0000 */ V(2, 11, 3),\t/* 148 */\n /* 0001 */ V(2, 11, 3),\n /* 0010 */ V(10, 5, 4),\n /* 0011 */ V(6, 9, 4),\n /* 0100 */ V(10, 4, 3),\n /* 0101 */ V(10, 4, 3),\n /* 0110 */ V(7, 8, 4),\n /* 0111 */ V(8, 7, 4),\n /* 1000 */ V(9, 4, 3),\n /* 1001 */ V(9, 4, 3),\n /* 1010 */ V(7, 7, 4),\n /* 1011 */ V(7, 6, 4),\n /* 1100 */ V(11, 2, 2),\n /* 1101 */ V(11, 2, 2),\n /* 1110 */ V(11, 2, 2),\n /* 1111 */ V(11, 2, 2),\n\n /* 0000 0110 ... */\n /* 000 */ V(1, 11, 2),\t/* 164 */\n /* 001 */ V(1, 11, 2),\n /* 010 */ V(11, 1, 2),\n /* 011 */ V(11, 1, 2),\n /* 100 */ V(0, 11, 3),\n /* 101 */ V(11, 0, 3),\n /* 110 */ V(9, 6, 3),\n /* 111 */ V(4, 10, 3),\n\n /* 0000 0111 ... */\n /* 000 */ V(3, 10, 3),\t/* 172 */\n /* 001 */ V(10, 3, 3),\n /* 010 */ V(5, 9, 3),\n /* 011 */ V(9, 5, 3),\n /* 100 */ V(2, 10, 2),\n /* 101 */ V(2, 10, 2),\n /* 110 */ V(10, 2, 2),\n /* 111 */ V(10, 2, 2),\n\n /* 0000 1000 ... */\n /* 000 */ V(1, 10, 2),\t/* 180 */\n /* 001 */ V(1, 10, 2),\n /* 010 */ V(10, 1, 2),\n /* 011 */ V(10, 1, 2),\n /* 100 */ V(0, 10, 3),\n /* 101 */ V(6, 8, 3),\n /* 110 */ V(10, 0, 2),\n /* 111 */ V(10, 0, 2),\n\n /* 0000 1001 ... */\n /* 000 */ V(8, 6, 3),\t/* 188 */\n /* 001 */ V(4, 9, 3),\n /* 010 */ V(9, 3, 2),\n /* 011 */ V(9, 3, 2),\n /* 100 */ V(3, 9, 3),\n /* 101 */ V(5, 8, 3),\n /* 110 */ V(8, 5, 3),\n /* 111 */ V(6, 7, 3),\n\n /* 0000 1010 ... */\n /* 000 */ V(2, 9, 2),\t/* 196 */\n /* 001 */ V(2, 9, 2),\n /* 010 */ V(9, 2, 2),\n /* 011 */ V(9, 2, 2),\n /* 100 */ V(5, 7, 3),\n /* 101 */ V(7, 5, 3),\n /* 110 */ V(3, 8, 2),\n /* 111 */ V(3, 8, 2),\n\n /* 0000 1011 ... */\n /* 000 */ V(8, 3, 2),\t/* 204 */\n /* 001 */ V(8, 3, 2),\n /* 010 */ V(6, 6, 3),\n /* 011 */ V(4, 7, 3),\n /* 100 */ V(7, 4, 3),\n /* 101 */ V(5, 6, 3),\n /* 110 */ V(6, 5, 3),\n /* 111 */ V(7, 3, 3),\n\n /* 0000 1100 ... */\n /* 0 */ V(1, 9, 1),\t/* 212 */\n /* 1 */ V(9, 1, 1),\n\n /* 0000 1101 ... */\n /* 00 */ V(0, 9, 2),\t/* 214 */\n /* 01 */ V(9, 0, 2),\n /* 10 */ V(4, 8, 2),\n /* 11 */ V(8, 4, 2),\n\n /* 0000 1110 ... */\n /* 000 */ V(7, 2, 2),\t/* 218 */\n /* 001 */ V(7, 2, 2),\n /* 010 */ V(4, 6, 3),\n /* 011 */ V(6, 4, 3),\n /* 100 */ V(2, 8, 1),\n /* 101 */ V(2, 8, 1),\n /* 110 */ V(2, 8, 1),\n /* 111 */ V(2, 8, 1),\n\n /* 0000 1111 ... */\n /* 0 */ V(8, 2, 1),\t/* 226 */\n /* 1 */ V(1, 8, 1),\n\n /* 0001 0000 ... */\n /* 00 */ V(3, 7, 2),\t/* 228 */\n /* 01 */ V(2, 7, 2),\n /* 10 */ V(1, 7, 1),\n /* 11 */ V(1, 7, 1),\n\n /* 0001 0001 ... */\n /* 00 */ V(7, 1, 1),\t/* 232 */\n /* 01 */ V(7, 1, 1),\n /* 10 */ V(5, 5, 2),\n /* 11 */ V(0, 7, 2),\n\n /* 0001 0010 ... */\n /* 00 */ V(7, 0, 2),\t/* 236 */\n /* 01 */ V(3, 6, 2),\n /* 10 */ V(6, 3, 2),\n /* 11 */ V(4, 5, 2),\n\n /* 0001 0011 ... */\n /* 00 */ V(5, 4, 2),\t/* 240 */\n /* 01 */ V(2, 6, 2),\n /* 10 */ V(6, 2, 2),\n /* 11 */ V(3, 5, 2),\n\n /* 0001 0101 ... */\n /* 0 */ V(0, 8, 1),\t/* 244 */\n /* 1 */ V(8, 0, 1),\n\n /* 0001 0110 ... */\n /* 0 */ V(1, 6, 1),\t/* 246 */\n /* 1 */ V(6, 1, 1),\n\n /* 0001 0111 ... */\n /* 0 */ V(0, 6, 1),\t/* 248 */\n /* 1 */ V(6, 0, 1),\n\n /* 0001 1000 ... */\n /* 00 */ V(5, 3, 2),\t/* 250 */\n /* 01 */ V(4, 4, 2),\n /* 10 */ V(2, 5, 1),\n /* 11 */ V(2, 5, 1),\n\n /* 0001 1001 ... */\n /* 0 */ V(5, 2, 1),\t/* 254 */\n /* 1 */ V(0, 5, 1),\n\n /* 0001 1100 ... */\n /* 0 */ V(3, 4, 1),\t/* 256 */\n /* 1 */ V(4, 3, 1),\n\n /* 0001 1101 ... */\n /* 0 */ V(5, 0, 1),\t/* 258 */\n /* 1 */ V(2, 4, 1),\n\n /* 0001 1110 ... */\n /* 0 */ V(4, 2, 1),\t/* 260 */\n /* 1 */ V(3, 3, 1),\n\n /* 0000 0000 0000 ... */\n /* 0000 */ PTR(388, 3),\t/* 262 */\n /* 0001 */ V(15, 15, 4),\n /* 0010 */ V(14, 15, 4),\n /* 0011 */ V(13, 15, 4),\n /* 0100 */ V(14, 14, 4),\n /* 0101 */ V(12, 15, 4),\n /* 0110 */ V(13, 14, 4),\n /* 0111 */ V(11, 15, 4),\n /* 1000 */ V(15, 11, 4),\n /* 1001 */ V(12, 14, 4),\n /* 1010 */ V(13, 12, 4),\n /* 1011 */ PTR(396, 1),\n /* 1100 */ V(14, 12, 3),\n /* 1101 */ V(14, 12, 3),\n /* 1110 */ V(13, 13, 3),\n /* 1111 */ V(13, 13, 3),\n\n /* 0000 0000 0001 ... */\n /* 0000 */ V(15, 10, 4),\t/* 278 */\n /* 0001 */ V(12, 13, 4),\n /* 0010 */ V(11, 14, 3),\n /* 0011 */ V(11, 14, 3),\n /* 0100 */ V(14, 11, 3),\n /* 0101 */ V(14, 11, 3),\n /* 0110 */ V(9, 15, 3),\n /* 0111 */ V(9, 15, 3),\n /* 1000 */ V(15, 9, 3),\n /* 1001 */ V(15, 9, 3),\n /* 1010 */ V(14, 10, 3),\n /* 1011 */ V(14, 10, 3),\n /* 1100 */ V(11, 13, 3),\n /* 1101 */ V(11, 13, 3),\n /* 1110 */ V(13, 11, 3),\n /* 1111 */ V(13, 11, 3),\n\n /* 0000 0000 0010 ... */\n /* 0000 */ V(8, 15, 3),\t/* 294 */\n /* 0001 */ V(8, 15, 3),\n /* 0010 */ V(15, 8, 3),\n /* 0011 */ V(15, 8, 3),\n /* 0100 */ V(12, 12, 3),\n /* 0101 */ V(12, 12, 3),\n /* 0110 */ V(10, 14, 4),\n /* 0111 */ V(9, 14, 4),\n /* 1000 */ V(8, 14, 3),\n /* 1001 */ V(8, 14, 3),\n /* 1010 */ V(7, 15, 4),\n /* 1011 */ V(7, 14, 4),\n /* 1100 */ V(15, 7, 2),\n /* 1101 */ V(15, 7, 2),\n /* 1110 */ V(15, 7, 2),\n /* 1111 */ V(15, 7, 2),\n\n /* 0000 0000 0011 ... */\n /* 000 */ V(13, 10, 2),\t/* 310 */\n /* 001 */ V(13, 10, 2),\n /* 010 */ V(10, 13, 3),\n /* 011 */ V(11, 12, 3),\n /* 100 */ V(12, 11, 3),\n /* 101 */ V(15, 6, 3),\n /* 110 */ V(6, 15, 2),\n /* 111 */ V(6, 15, 2),\n\n /* 0000 0000 0100 ... */\n /* 00 */ V(14, 8, 2),\t/* 318 */\n /* 01 */ V(5, 15, 2),\n /* 10 */ V(9, 13, 2),\n /* 11 */ V(13, 9, 2),\n\n /* 0000 0000 0101 ... */\n /* 00 */ V(15, 5, 2),\t/* 322 */\n /* 01 */ V(14, 7, 2),\n /* 10 */ V(10, 12, 2),\n /* 11 */ V(11, 11, 2),\n\n /* 0000 0000 0110 ... */\n /* 000 */ V(4, 15, 2),\t/* 326 */\n /* 001 */ V(4, 15, 2),\n /* 010 */ V(15, 4, 2),\n /* 011 */ V(15, 4, 2),\n /* 100 */ V(12, 10, 3),\n /* 101 */ V(14, 6, 3),\n /* 110 */ V(15, 3, 2),\n /* 111 */ V(15, 3, 2),\n\n /* 0000 0000 0111 ... */\n /* 00 */ V(3, 15, 1),\t/* 334 */\n /* 01 */ V(3, 15, 1),\n /* 10 */ V(8, 13, 2),\n /* 11 */ V(13, 8, 2),\n\n /* 0000 0000 1000 ... */\n /* 0 */ V(2, 15, 1),\t/* 338 */\n /* 1 */ V(15, 2, 1),\n\n /* 0000 0000 1001 ... */\n /* 00 */ V(6, 14, 2),\t/* 340 */\n /* 01 */ V(9, 12, 2),\n /* 10 */ V(0, 15, 1),\n /* 11 */ V(0, 15, 1),\n\n /* 0000 0000 1010 ... */\n /* 00 */ V(12, 9, 2),\t/* 344 */\n /* 01 */ V(5, 14, 2),\n /* 10 */ V(10, 11, 1),\n /* 11 */ V(10, 11, 1),\n\n /* 0000 0000 1011 ... */\n /* 00 */ V(7, 13, 2),\t/* 348 */\n /* 01 */ V(13, 7, 2),\n /* 10 */ V(4, 14, 1),\n /* 11 */ V(4, 14, 1),\n\n /* 0000 0000 1100 ... */\n /* 00 */ V(12, 8, 2),\t/* 352 */\n /* 01 */ V(13, 6, 2),\n /* 10 */ V(3, 14, 1),\n /* 11 */ V(3, 14, 1),\n\n /* 0000 0000 1101 ... */\n /* 00 */ V(11, 9, 1),\t/* 356 */\n /* 01 */ V(11, 9, 1),\n /* 10 */ V(9, 11, 2),\n /* 11 */ V(10, 10, 2),\n\n /* 0000 0001 0001 ... */\n /* 0 */ V(11, 10, 1),\t/* 360 */\n /* 1 */ V(14, 5, 1),\n\n /* 0000 0001 0010 ... */\n /* 0 */ V(14, 4, 1),\t/* 362 */\n /* 1 */ V(8, 12, 1),\n\n /* 0000 0001 0011 ... */\n /* 0 */ V(6, 13, 1),\t/* 364 */\n /* 1 */ V(14, 3, 1),\n\n /* 0000 0001 0101 ... */\n /* 0 */ V(2, 14, 1),\t/* 366 */\n /* 1 */ V(0, 14, 1),\n\n /* 0000 0001 1000 ... */\n /* 0 */ V(14, 0, 1),\t/* 368 */\n /* 1 */ V(5, 13, 1),\n\n /* 0000 0001 1001 ... */\n /* 0 */ V(13, 5, 1),\t/* 370 */\n /* 1 */ V(7, 12, 1),\n\n /* 0000 0001 1010 ... */\n /* 0 */ V(12, 7, 1),\t/* 372 */\n /* 1 */ V(4, 13, 1),\n\n /* 0000 0001 1011 ... */\n /* 0 */ V(8, 11, 1),\t/* 374 */\n /* 1 */ V(11, 8, 1),\n\n /* 0000 0001 1100 ... */\n /* 0 */ V(13, 4, 1),\t/* 376 */\n /* 1 */ V(9, 10, 1),\n\n /* 0000 0001 1101 ... */\n /* 0 */ V(10, 9, 1),\t/* 378 */\n /* 1 */ V(6, 12, 1),\n\n /* 0000 0010 0000 ... */\n /* 0 */ V(13, 3, 1),\t/* 380 */\n /* 1 */ V(7, 11, 1),\n\n /* 0000 0010 0101 ... */\n /* 0 */ V(5, 12, 1),\t/* 382 */\n /* 1 */ V(12, 5, 1),\n\n /* 0000 0010 0110 ... */\n /* 0 */ V(9, 9, 1),\t/* 384 */\n /* 1 */ V(7, 10, 1),\n\n /* 0000 0010 1000 ... */\n /* 0 */ V(10, 7, 1),\t/* 386 */\n /* 1 */ V(9, 7, 1),\n\n /* 0000 0000 0000 0000 ... */\n /* 000 */ V(15, 14, 3),\t/* 388 */\n /* 001 */ V(15, 12, 3),\n /* 010 */ V(15, 13, 2),\n /* 011 */ V(15, 13, 2),\n /* 100 */ V(14, 13, 1),\n /* 101 */ V(14, 13, 1),\n /* 110 */ V(14, 13, 1),\n /* 111 */ V(14, 13, 1),\n\n /* 0000 0000 0000 1011 ... */\n /* 0 */ V(10, 15, 1),\t/* 396 */\n /* 1 */ V(14, 9, 1)\n];\n\nconst hufftab15 = [\n /* 0000 */ PTR(16, 4),\n /* 0001 */ PTR(32, 4),\n /* 0010 */ PTR(48, 4),\n /* 0011 */ PTR(64, 4),\n /* 0100 */ PTR(80, 4),\n /* 0101 */ PTR(96, 3),\n /* 0110 */ PTR(104, 3),\n /* 0111 */ PTR(112, 2),\n /* 1000 */ PTR(116, 1),\n /* 1001 */ PTR(118, 1),\n /* 1010 */ V(1, 1, 3),\n /* 1011 */ V(1, 1, 3),\n /* 1100 */ V(0, 1, 4),\n /* 1101 */ V(1, 0, 4),\n /* 1110 */ V(0, 0, 3),\n /* 1111 */ V(0, 0, 3),\n\n /* 0000 ... */\n /* 0000 */ PTR(120, 4),\t/* 16 */\n /* 0001 */ PTR(136, 4),\n /* 0010 */ PTR(152, 4),\n /* 0011 */ PTR(168, 4),\n /* 0100 */ PTR(184, 4),\n /* 0101 */ PTR(200, 3),\n /* 0110 */ PTR(208, 3),\n /* 0111 */ PTR(216, 4),\n /* 1000 */ PTR(232, 3),\n /* 1001 */ PTR(240, 3),\n /* 1010 */ PTR(248, 3),\n /* 1011 */ PTR(256, 3),\n /* 1100 */ PTR(264, 2),\n /* 1101 */ PTR(268, 3),\n /* 1110 */ PTR(276, 3),\n /* 1111 */ PTR(284, 2),\n\n /* 0001 ... */\n /* 0000 */ PTR(288, 2),\t/* 32 */\n /* 0001 */ PTR(292, 2),\n /* 0010 */ PTR(296, 2),\n /* 0011 */ PTR(300, 2),\n /* 0100 */ PTR(304, 2),\n /* 0101 */ PTR(308, 2),\n /* 0110 */ PTR(312, 2),\n /* 0111 */ PTR(316, 2),\n /* 1000 */ PTR(320, 1),\n /* 1001 */ PTR(322, 1),\n /* 1010 */ PTR(324, 1),\n /* 1011 */ PTR(326, 2),\n /* 1100 */ PTR(330, 1),\n /* 1101 */ PTR(332, 1),\n /* 1110 */ PTR(334, 2),\n /* 1111 */ PTR(338, 1),\n\n /* 0010 ... */\n /* 0000 */ PTR(340, 1),\t/* 48 */\n /* 0001 */ PTR(342, 1),\n /* 0010 */ V(9, 1, 4),\n /* 0011 */ PTR(344, 1),\n /* 0100 */ PTR(346, 1),\n /* 0101 */ PTR(348, 1),\n /* 0110 */ PTR(350, 1),\n /* 0111 */ PTR(352, 1),\n /* 1000 */ V(2, 8, 4),\n /* 1001 */ V(8, 2, 4),\n /* 1010 */ V(1, 8, 4),\n /* 1011 */ V(8, 1, 4),\n /* 1100 */ PTR(354, 1),\n /* 1101 */ PTR(356, 1),\n /* 1110 */ PTR(358, 1),\n /* 1111 */ PTR(360, 1),\n\n /* 0011 ... */\n /* 0000 */ V(2, 7, 4),\t/* 64 */\n /* 0001 */ V(7, 2, 4),\n /* 0010 */ V(6, 4, 4),\n /* 0011 */ V(1, 7, 4),\n /* 0100 */ V(5, 5, 4),\n /* 0101 */ V(7, 1, 4),\n /* 0110 */ PTR(362, 1),\n /* 0111 */ V(3, 6, 4),\n /* 1000 */ V(6, 3, 4),\n /* 1001 */ V(4, 5, 4),\n /* 1010 */ V(5, 4, 4),\n /* 1011 */ V(2, 6, 4),\n /* 1100 */ V(6, 2, 4),\n /* 1101 */ V(1, 6, 4),\n /* 1110 */ PTR(364, 1),\n /* 1111 */ V(3, 5, 4),\n\n /* 0100 ... */\n /* 0000 */ V(6, 1, 3),\t/* 80 */\n /* 0001 */ V(6, 1, 3),\n /* 0010 */ V(5, 3, 4),\n /* 0011 */ V(4, 4, 4),\n /* 0100 */ V(2, 5, 3),\n /* 0101 */ V(2, 5, 3),\n /* 0110 */ V(5, 2, 3),\n /* 0111 */ V(5, 2, 3),\n /* 1000 */ V(1, 5, 3),\n /* 1001 */ V(1, 5, 3),\n /* 1010 */ V(5, 1, 3),\n /* 1011 */ V(5, 1, 3),\n /* 1100 */ V(0, 5, 4),\n /* 1101 */ V(5, 0, 4),\n /* 1110 */ V(3, 4, 3),\n /* 1111 */ V(3, 4, 3),\n\n /* 0101 ... */\n /* 000 */ V(4, 3, 3),\t/* 96 */\n /* 001 */ V(2, 4, 3),\n /* 010 */ V(4, 2, 3),\n /* 011 */ V(3, 3, 3),\n /* 100 */ V(4, 1, 2),\n /* 101 */ V(4, 1, 2),\n /* 110 */ V(1, 4, 3),\n /* 111 */ V(0, 4, 3),\n\n /* 0110 ... */\n /* 000 */ V(2, 3, 2),\t/* 104 */\n /* 001 */ V(2, 3, 2),\n /* 010 */ V(3, 2, 2),\n /* 011 */ V(3, 2, 2),\n /* 100 */ V(4, 0, 3),\n /* 101 */ V(0, 3, 3),\n /* 110 */ V(1, 3, 2),\n /* 111 */ V(1, 3, 2),\n\n /* 0111 ... */\n /* 00 */ V(3, 1, 2),\t/* 112 */\n /* 01 */ V(3, 0, 2),\n /* 10 */ V(2, 2, 1),\n /* 11 */ V(2, 2, 1),\n\n /* 1000 ... */\n /* 0 */ V(1, 2, 1),\t/* 116 */\n /* 1 */ V(2, 1, 1),\n\n /* 1001 ... */\n /* 0 */ V(0, 2, 1),\t/* 118 */\n /* 1 */ V(2, 0, 1),\n\n /* 0000 0000 ... */\n /* 0000 */ PTR(366, 1),\t/* 120 */\n /* 0001 */ PTR(368, 1),\n /* 0010 */ V(14, 14, 4),\n /* 0011 */ PTR(370, 1),\n /* 0100 */ PTR(372, 1),\n /* 0101 */ PTR(374, 1),\n /* 0110 */ V(15, 11, 4),\n /* 0111 */ PTR(376, 1),\n /* 1000 */ V(13, 13, 4),\n /* 1001 */ V(10, 15, 4),\n /* 1010 */ V(15, 10, 4),\n /* 1011 */ V(11, 14, 4),\n /* 1100 */ V(14, 11, 4),\n /* 1101 */ V(12, 13, 4),\n /* 1110 */ V(13, 12, 4),\n /* 1111 */ V(9, 15, 4),\n\n /* 0000 0001 ... */\n /* 0000 */ V(15, 9, 4),\t/* 136 */\n /* 0001 */ V(14, 10, 4),\n /* 0010 */ V(11, 13, 4),\n /* 0011 */ V(13, 11, 4),\n /* 0100 */ V(8, 15, 4),\n /* 0101 */ V(15, 8, 4),\n /* 0110 */ V(12, 12, 4),\n /* 0111 */ V(9, 14, 4),\n /* 1000 */ V(14, 9, 4),\n /* 1001 */ V(7, 15, 4),\n /* 1010 */ V(15, 7, 4),\n /* 1011 */ V(10, 13, 4),\n /* 1100 */ V(13, 10, 4),\n /* 1101 */ V(11, 12, 4),\n /* 1110 */ V(6, 15, 4),\n /* 1111 */ PTR(378, 1),\n\n /* 0000 0010 ... */\n /* 0000 */ V(12, 11, 3),\t/* 152 */\n /* 0001 */ V(12, 11, 3),\n /* 0010 */ V(15, 6, 3),\n /* 0011 */ V(15, 6, 3),\n /* 0100 */ V(8, 14, 4),\n /* 0101 */ V(14, 8, 4),\n /* 0110 */ V(5, 15, 4),\n /* 0111 */ V(9, 13, 4),\n /* 1000 */ V(15, 5, 3),\n /* 1001 */ V(15, 5, 3),\n /* 1010 */ V(7, 14, 3),\n /* 1011 */ V(7, 14, 3),\n /* 1100 */ V(14, 7, 3),\n /* 1101 */ V(14, 7, 3),\n /* 1110 */ V(10, 12, 3),\n /* 1111 */ V(10, 12, 3),\n\n /* 0000 0011 ... */\n /* 0000 */ V(12, 10, 3),\t/* 168 */\n /* 0001 */ V(12, 10, 3),\n /* 0010 */ V(11, 11, 3),\n /* 0011 */ V(11, 11, 3),\n /* 0100 */ V(13, 9, 4),\n /* 0101 */ V(8, 13, 4),\n /* 0110 */ V(4, 15, 3),\n /* 0111 */ V(4, 15, 3),\n /* 1000 */ V(15, 4, 3),\n /* 1001 */ V(15, 4, 3),\n /* 1010 */ V(3, 15, 3),\n /* 1011 */ V(3, 15, 3),\n /* 1100 */ V(15, 3, 3),\n /* 1101 */ V(15, 3, 3),\n /* 1110 */ V(13, 8, 3),\n /* 1111 */ V(13, 8, 3),\n\n /* 0000 0100 ... */\n /* 0000 */ V(14, 6, 3),\t/* 184 */\n /* 0001 */ V(14, 6, 3),\n /* 0010 */ V(2, 15, 3),\n /* 0011 */ V(2, 15, 3),\n /* 0100 */ V(15, 2, 3),\n /* 0101 */ V(15, 2, 3),\n /* 0110 */ V(6, 14, 4),\n /* 0111 */ V(15, 0, 4),\n /* 1000 */ V(1, 15, 3),\n /* 1001 */ V(1, 15, 3),\n /* 1010 */ V(15, 1, 3),\n /* 1011 */ V(15, 1, 3),\n /* 1100 */ V(9, 12, 3),\n /* 1101 */ V(9, 12, 3),\n /* 1110 */ V(12, 9, 3),\n /* 1111 */ V(12, 9, 3),\n\n /* 0000 0101 ... */\n /* 000 */ V(5, 14, 3),\t/* 200 */\n /* 001 */ V(10, 11, 3),\n /* 010 */ V(11, 10, 3),\n /* 011 */ V(14, 5, 3),\n /* 100 */ V(7, 13, 3),\n /* 101 */ V(13, 7, 3),\n /* 110 */ V(4, 14, 3),\n /* 111 */ V(14, 4, 3),\n\n /* 0000 0110 ... */\n /* 000 */ V(8, 12, 3),\t/* 208 */\n /* 001 */ V(12, 8, 3),\n /* 010 */ V(3, 14, 3),\n /* 011 */ V(6, 13, 3),\n /* 100 */ V(13, 6, 3),\n /* 101 */ V(14, 3, 3),\n /* 110 */ V(9, 11, 3),\n /* 111 */ V(11, 9, 3),\n\n /* 0000 0111 ... */\n /* 0000 */ V(2, 14, 3),\t/* 216 */\n /* 0001 */ V(2, 14, 3),\n /* 0010 */ V(10, 10, 3),\n /* 0011 */ V(10, 10, 3),\n /* 0100 */ V(14, 2, 3),\n /* 0101 */ V(14, 2, 3),\n /* 0110 */ V(1, 14, 3),\n /* 0111 */ V(1, 14, 3),\n /* 1000 */ V(14, 1, 3),\n /* 1001 */ V(14, 1, 3),\n /* 1010 */ V(0, 14, 4),\n /* 1011 */ V(14, 0, 4),\n /* 1100 */ V(5, 13, 3),\n /* 1101 */ V(5, 13, 3),\n /* 1110 */ V(13, 5, 3),\n /* 1111 */ V(13, 5, 3),\n\n /* 0000 1000 ... */\n /* 000 */ V(7, 12, 3),\t/* 232 */\n /* 001 */ V(12, 7, 3),\n /* 010 */ V(4, 13, 3),\n /* 011 */ V(8, 11, 3),\n /* 100 */ V(13, 4, 2),\n /* 101 */ V(13, 4, 2),\n /* 110 */ V(11, 8, 3),\n /* 111 */ V(9, 10, 3),\n\n /* 0000 1001 ... */\n /* 000 */ V(10, 9, 3),\t/* 240 */\n /* 001 */ V(6, 12, 3),\n /* 010 */ V(12, 6, 3),\n /* 011 */ V(3, 13, 3),\n /* 100 */ V(13, 3, 2),\n /* 101 */ V(13, 3, 2),\n /* 110 */ V(13, 2, 2),\n /* 111 */ V(13, 2, 2),\n\n /* 0000 1010 ... */\n /* 000 */ V(2, 13, 3),\t/* 248 */\n /* 001 */ V(0, 13, 3),\n /* 010 */ V(1, 13, 2),\n /* 011 */ V(1, 13, 2),\n /* 100 */ V(7, 11, 2),\n /* 101 */ V(7, 11, 2),\n /* 110 */ V(11, 7, 2),\n /* 111 */ V(11, 7, 2),\n\n /* 0000 1011 ... */\n /* 000 */ V(13, 1, 2),\t/* 256 */\n /* 001 */ V(13, 1, 2),\n /* 010 */ V(5, 12, 3),\n /* 011 */ V(13, 0, 3),\n /* 100 */ V(12, 5, 2),\n /* 101 */ V(12, 5, 2),\n /* 110 */ V(8, 10, 2),\n /* 111 */ V(8, 10, 2),\n\n /* 0000 1100 ... */\n /* 00 */ V(10, 8, 2),\t/* 264 */\n /* 01 */ V(4, 12, 2),\n /* 10 */ V(12, 4, 2),\n /* 11 */ V(6, 11, 2),\n\n /* 0000 1101 ... */\n /* 000 */ V(11, 6, 2),\t/* 268 */\n /* 001 */ V(11, 6, 2),\n /* 010 */ V(9, 9, 3),\n /* 011 */ V(0, 12, 3),\n /* 100 */ V(3, 12, 2),\n /* 101 */ V(3, 12, 2),\n /* 110 */ V(12, 3, 2),\n /* 111 */ V(12, 3, 2),\n\n /* 0000 1110 ... */\n /* 000 */ V(7, 10, 2),\t/* 276 */\n /* 001 */ V(7, 10, 2),\n /* 010 */ V(10, 7, 2),\n /* 011 */ V(10, 7, 2),\n /* 100 */ V(10, 6, 2),\n /* 101 */ V(10, 6, 2),\n /* 110 */ V(12, 0, 3),\n /* 111 */ V(0, 11, 3),\n\n /* 0000 1111 ... */\n /* 00 */ V(12, 2, 1),\t/* 284 */\n /* 01 */ V(12, 2, 1),\n /* 10 */ V(2, 12, 2),\n /* 11 */ V(5, 11, 2),\n\n /* 0001 0000 ... */\n /* 00 */ V(11, 5, 2),\t/* 288 */\n /* 01 */ V(1, 12, 2),\n /* 10 */ V(8, 9, 2),\n /* 11 */ V(9, 8, 2),\n\n /* 0001 0001 ... */\n /* 00 */ V(12, 1, 2),\t/* 292 */\n /* 01 */ V(4, 11, 2),\n /* 10 */ V(11, 4, 2),\n /* 11 */ V(6, 10, 2),\n\n /* 0001 0010 ... */\n /* 00 */ V(3, 11, 2),\t/* 296 */\n /* 01 */ V(7, 9, 2),\n /* 10 */ V(11, 3, 1),\n /* 11 */ V(11, 3, 1),\n\n /* 0001 0011 ... */\n /* 00 */ V(9, 7, 2),\t/* 300 */\n /* 01 */ V(8, 8, 2),\n /* 10 */ V(2, 11, 2),\n /* 11 */ V(5, 10, 2),\n\n /* 0001 0100 ... */\n /* 00 */ V(11, 2, 1),\t/* 304 */\n /* 01 */ V(11, 2, 1),\n /* 10 */ V(10, 5, 2),\n /* 11 */ V(1, 11, 2),\n\n /* 0001 0101 ... */\n /* 00 */ V(11, 1, 1),\t/* 308 */\n /* 01 */ V(11, 1, 1),\n /* 10 */ V(11, 0, 2),\n /* 11 */ V(6, 9, 2),\n\n /* 0001 0110 ... */\n /* 00 */ V(9, 6, 2),\t/* 312 */\n /* 01 */ V(4, 10, 2),\n /* 10 */ V(10, 4, 2),\n /* 11 */ V(7, 8, 2),\n\n /* 0001 0111 ... */\n /* 00 */ V(8, 7, 2),\t/* 316 */\n /* 01 */ V(3, 10, 2),\n /* 10 */ V(10, 3, 1),\n /* 11 */ V(10, 3, 1),\n\n /* 0001 1000 ... */\n /* 0 */ V(5, 9, 1),\t/* 320 */\n /* 1 */ V(9, 5, 1),\n\n /* 0001 1001 ... */\n /* 0 */ V(2, 10, 1),\t/* 322 */\n /* 1 */ V(10, 2, 1),\n\n /* 0001 1010 ... */\n /* 0 */ V(1, 10, 1),\t/* 324 */\n /* 1 */ V(10, 1, 1),\n\n /* 0001 1011 ... */\n /* 00 */ V(0, 10, 2),\t/* 326 */\n /* 01 */ V(10, 0, 2),\n /* 10 */ V(6, 8, 1),\n /* 11 */ V(6, 8, 1),\n\n /* 0001 1100 ... */\n /* 0 */ V(8, 6, 1),\t/* 330 */\n /* 1 */ V(4, 9, 1),\n\n /* 0001 1101 ... */\n /* 0 */ V(9, 4, 1),\t/* 332 */\n /* 1 */ V(3, 9, 1),\n\n /* 0001 1110 ... */\n /* 00 */ V(9, 3, 1),\t/* 334 */\n /* 01 */ V(9, 3, 1),\n /* 10 */ V(7, 7, 2),\n /* 11 */ V(0, 9, 2),\n\n /* 0001 1111 ... */\n /* 0 */ V(5, 8, 1),\t/* 338 */\n /* 1 */ V(8, 5, 1),\n\n /* 0010 0000 ... */\n /* 0 */ V(2, 9, 1),\t/* 340 */\n /* 1 */ V(6, 7, 1),\n\n /* 0010 0001 ... */\n /* 0 */ V(7, 6, 1),\t/* 342 */\n /* 1 */ V(9, 2, 1),\n\n /* 0010 0011 ... */\n /* 0 */ V(1, 9, 1),\t/* 344 */\n /* 1 */ V(9, 0, 1),\n\n /* 0010 0100 ... */\n /* 0 */ V(4, 8, 1),\t/* 346 */\n /* 1 */ V(8, 4, 1),\n\n /* 0010 0101 ... */\n /* 0 */ V(5, 7, 1),\t/* 348 */\n /* 1 */ V(7, 5, 1),\n\n /* 0010 0110 ... */\n /* 0 */ V(3, 8, 1),\t/* 350 */\n /* 1 */ V(8, 3, 1),\n\n /* 0010 0111 ... */\n /* 0 */ V(6, 6, 1),\t/* 352 */\n /* 1 */ V(4, 7, 1),\n\n /* 0010 1100 ... */\n /* 0 */ V(7, 4, 1),\t/* 354 */\n /* 1 */ V(0, 8, 1),\n\n /* 0010 1101 ... */\n /* 0 */ V(8, 0, 1),\t/* 356 */\n /* 1 */ V(5, 6, 1),\n\n /* 0010 1110 ... */\n /* 0 */ V(6, 5, 1),\t/* 358 */\n /* 1 */ V(3, 7, 1),\n\n /* 0010 1111 ... */\n /* 0 */ V(7, 3, 1),\t/* 360 */\n /* 1 */ V(4, 6, 1),\n\n /* 0011 0110 ... */\n /* 0 */ V(0, 7, 1),\t/* 362 */\n /* 1 */ V(7, 0, 1),\n\n /* 0011 1110 ... */\n /* 0 */ V(0, 6, 1),\t/* 364 */\n /* 1 */ V(6, 0, 1),\n\n /* 0000 0000 0000 ... */\n /* 0 */ V(15, 15, 1),\t/* 366 */\n /* 1 */ V(14, 15, 1),\n\n /* 0000 0000 0001 ... */\n /* 0 */ V(15, 14, 1),\t/* 368 */\n /* 1 */ V(13, 15, 1),\n\n /* 0000 0000 0011 ... */\n /* 0 */ V(15, 13, 1),\t/* 370 */\n /* 1 */ V(12, 15, 1),\n\n /* 0000 0000 0100 ... */\n /* 0 */ V(15, 12, 1),\t/* 372 */\n /* 1 */ V(13, 14, 1),\n\n /* 0000 0000 0101 ... */\n /* 0 */ V(14, 13, 1),\t/* 374 */\n /* 1 */ V(11, 15, 1),\n\n /* 0000 0000 0111 ... */\n /* 0 */ V(12, 14, 1),\t/* 376 */\n /* 1 */ V(14, 12, 1),\n\n /* 0000 0001 1111 ... */\n /* 0 */ V(10, 14, 1),\t/* 378 */\n /* 1 */ V(0, 15, 1)\n];\n\nconst hufftab16 = [\n /* 0000 */ PTR(16, 4),\n /* 0001 */ PTR(32, 4),\n /* 0010 */ PTR(48, 4),\n /* 0011 */ PTR(64, 2),\n /* 0100 */ V(1, 1, 4),\n /* 0101 */ V(0, 1, 4),\n /* 0110 */ V(1, 0, 3),\n /* 0111 */ V(1, 0, 3),\n /* 1000 */ V(0, 0, 1),\n /* 1001 */ V(0, 0, 1),\n /* 1010 */ V(0, 0, 1),\n /* 1011 */ V(0, 0, 1),\n /* 1100 */ V(0, 0, 1),\n /* 1101 */ V(0, 0, 1),\n /* 1110 */ V(0, 0, 1),\n /* 1111 */ V(0, 0, 1),\n\n /* 0000 ... */\n /* 0000 */ PTR(68, 3),\t/* 16 */\n /* 0001 */ PTR(76, 3),\n /* 0010 */ PTR(84, 2),\n /* 0011 */ V(15, 15, 4),\n /* 0100 */ PTR(88, 2),\n /* 0101 */ PTR(92, 1),\n /* 0110 */ PTR(94, 4),\n /* 0111 */ V(15, 2, 4),\n /* 1000 */ PTR(110, 1),\n /* 1001 */ V(1, 15, 4),\n /* 1010 */ V(15, 1, 4),\n /* 1011 */ PTR(112, 4),\n /* 1100 */ PTR(128, 4),\n /* 1101 */ PTR(144, 4),\n /* 1110 */ PTR(160, 4),\n /* 1111 */ PTR(176, 4),\n\n /* 0001 ... */\n /* 0000 */ PTR(192, 4),\t/* 32 */\n /* 0001 */ PTR(208, 3),\n /* 0010 */ PTR(216, 3),\n /* 0011 */ PTR(224, 3),\n /* 0100 */ PTR(232, 3),\n /* 0101 */ PTR(240, 3),\n /* 0110 */ PTR(248, 3),\n /* 0111 */ PTR(256, 3),\n /* 1000 */ PTR(264, 2),\n /* 1001 */ PTR(268, 2),\n /* 1010 */ PTR(272, 1),\n /* 1011 */ PTR(274, 2),\n /* 1100 */ PTR(278, 2),\n /* 1101 */ PTR(282, 1),\n /* 1110 */ V(5, 1, 4),\n /* 1111 */ PTR(284, 1),\n\n /* 0010 ... */\n /* 0000 */ PTR(286, 1),\t/* 48 */\n /* 0001 */ PTR(288, 1),\n /* 0010 */ PTR(290, 1),\n /* 0011 */ V(1, 4, 4),\n /* 0100 */ V(4, 1, 4),\n /* 0101 */ PTR(292, 1),\n /* 0110 */ V(2, 3, 4),\n /* 0111 */ V(3, 2, 4),\n /* 1000 */ V(1, 3, 3),\n /* 1001 */ V(1, 3, 3),\n /* 1010 */ V(3, 1, 3),\n /* 1011 */ V(3, 1, 3),\n /* 1100 */ V(0, 3, 4),\n /* 1101 */ V(3, 0, 4),\n /* 1110 */ V(2, 2, 3),\n /* 1111 */ V(2, 2, 3),\n\n /* 0011 ... */\n /* 00 */ V(1, 2, 2),\t/* 64 */\n /* 01 */ V(2, 1, 2),\n /* 10 */ V(0, 2, 2),\n /* 11 */ V(2, 0, 2),\n\n /* 0000 0000 ... */\n /* 000 */ V(14, 15, 3),\t/* 68 */\n /* 001 */ V(15, 14, 3),\n /* 010 */ V(13, 15, 3),\n /* 011 */ V(15, 13, 3),\n /* 100 */ V(12, 15, 3),\n /* 101 */ V(15, 12, 3),\n /* 110 */ V(11, 15, 3),\n /* 111 */ V(15, 11, 3),\n\n /* 0000 0001 ... */\n /* 000 */ V(10, 15, 2),\t/* 76 */\n /* 001 */ V(10, 15, 2),\n /* 010 */ V(15, 10, 3),\n /* 011 */ V(9, 15, 3),\n /* 100 */ V(15, 9, 3),\n /* 101 */ V(15, 8, 3),\n /* 110 */ V(8, 15, 2),\n /* 111 */ V(8, 15, 2),\n\n /* 0000 0010 ... */\n /* 00 */ V(7, 15, 2),\t/* 84 */\n /* 01 */ V(15, 7, 2),\n /* 10 */ V(6, 15, 2),\n /* 11 */ V(15, 6, 2),\n\n /* 0000 0100 ... */\n /* 00 */ V(5, 15, 2),\t/* 88 */\n /* 01 */ V(15, 5, 2),\n /* 10 */ V(4, 15, 1),\n /* 11 */ V(4, 15, 1),\n\n /* 0000 0101 ... */\n /* 0 */ V(15, 4, 1),\t/* 92 */\n /* 1 */ V(15, 3, 1),\n\n /* 0000 0110 ... */\n /* 0000 */ V(15, 0, 1),\t/* 94 */\n /* 0001 */ V(15, 0, 1),\n /* 0010 */ V(15, 0, 1),\n /* 0011 */ V(15, 0, 1),\n /* 0100 */ V(15, 0, 1),\n /* 0101 */ V(15, 0, 1),\n /* 0110 */ V(15, 0, 1),\n /* 0111 */ V(15, 0, 1),\n /* 1000 */ V(3, 15, 2),\n /* 1001 */ V(3, 15, 2),\n /* 1010 */ V(3, 15, 2),\n /* 1011 */ V(3, 15, 2),\n /* 1100 */ PTR(294, 4),\n /* 1101 */ PTR(310, 3),\n /* 1110 */ PTR(318, 3),\n /* 1111 */ PTR(326, 3),\n\n /* 0000 1000 ... */\n /* 0 */ V(2, 15, 1),\t/* 110 */\n /* 1 */ V(0, 15, 1),\n\n /* 0000 1011 ... */\n /* 0000 */ PTR(334, 2),\t/* 112 */\n /* 0001 */ PTR(338, 2),\n /* 0010 */ PTR(342, 2),\n /* 0011 */ PTR(346, 1),\n /* 0100 */ PTR(348, 2),\n /* 0101 */ PTR(352, 2),\n /* 0110 */ PTR(356, 1),\n /* 0111 */ PTR(358, 2),\n /* 1000 */ PTR(362, 2),\n /* 1001 */ PTR(366, 2),\n /* 1010 */ PTR(370, 2),\n /* 1011 */ V(14, 3, 4),\n /* 1100 */ PTR(374, 1),\n /* 1101 */ PTR(376, 1),\n /* 1110 */ PTR(378, 1),\n /* 1111 */ PTR(380, 1),\n\n /* 0000 1100 ... */\n /* 0000 */ PTR(382, 1),\t/* 128 */\n /* 0001 */ PTR(384, 1),\n /* 0010 */ PTR(386, 1),\n /* 0011 */ V(0, 13, 4),\n /* 0100 */ PTR(388, 1),\n /* 0101 */ PTR(390, 1),\n /* 0110 */ PTR(392, 1),\n /* 0111 */ V(3, 12, 4),\n /* 1000 */ PTR(394, 1),\n /* 1001 */ V(1, 12, 4),\n /* 1010 */ V(12, 0, 4),\n /* 1011 */ PTR(396, 1),\n /* 1100 */ V(14, 2, 3),\n /* 1101 */ V(14, 2, 3),\n /* 1110 */ V(2, 14, 4),\n /* 1111 */ V(1, 14, 4),\n\n /* 0000 1101 ... */\n /* 0000 */ V(13, 3, 4),\t/* 144 */\n /* 0001 */ V(2, 13, 4),\n /* 0010 */ V(13, 2, 4),\n /* 0011 */ V(13, 1, 4),\n /* 0100 */ V(3, 11, 4),\n /* 0101 */ PTR(398, 1),\n /* 0110 */ V(1, 13, 3),\n /* 0111 */ V(1, 13, 3),\n /* 1000 */ V(12, 4, 4),\n /* 1001 */ V(6, 11, 4),\n /* 1010 */ V(12, 3, 4),\n /* 1011 */ V(10, 7, 4),\n /* 1100 */ V(2, 12, 3),\n /* 1101 */ V(2, 12, 3),\n /* 1110 */ V(12, 2, 4),\n /* 1111 */ V(11, 5, 4),\n\n /* 0000 1110 ... */\n /* 0000 */ V(12, 1, 4),\t/* 160 */\n /* 0001 */ V(0, 12, 4),\n /* 0010 */ V(4, 11, 4),\n /* 0011 */ V(11, 4, 4),\n /* 0100 */ V(6, 10, 4),\n /* 0101 */ V(10, 6, 4),\n /* 0110 */ V(11, 3, 3),\n /* 0111 */ V(11, 3, 3),\n /* 1000 */ V(5, 10, 4),\n /* 1001 */ V(10, 5, 4),\n /* 1010 */ V(2, 11, 3),\n /* 1011 */ V(2, 11, 3),\n /* 1100 */ V(11, 2, 3),\n /* 1101 */ V(11, 2, 3),\n /* 1110 */ V(1, 11, 3),\n /* 1111 */ V(1, 11, 3),\n\n /* 0000 1111 ... */\n /* 0000 */ V(11, 1, 3),\t/* 176 */\n /* 0001 */ V(11, 1, 3),\n /* 0010 */ V(0, 11, 4),\n /* 0011 */ V(11, 0, 4),\n /* 0100 */ V(6, 9, 4),\n /* 0101 */ V(9, 6, 4),\n /* 0110 */ V(4, 10, 4),\n /* 0111 */ V(10, 4, 4),\n /* 1000 */ V(7, 8, 4),\n /* 1001 */ V(8, 7, 4),\n /* 1010 */ V(10, 3, 3),\n /* 1011 */ V(10, 3, 3),\n /* 1100 */ V(3, 10, 4),\n /* 1101 */ V(5, 9, 4),\n /* 1110 */ V(2, 10, 3),\n /* 1111 */ V(2, 10, 3),\n\n /* 0001 0000 ... */\n /* 0000 */ V(9, 5, 4),\t/* 192 */\n /* 0001 */ V(6, 8, 4),\n /* 0010 */ V(10, 1, 3),\n /* 0011 */ V(10, 1, 3),\n /* 0100 */ V(8, 6, 4),\n /* 0101 */ V(7, 7, 4),\n /* 0110 */ V(9, 4, 3),\n /* 0111 */ V(9, 4, 3),\n /* 1000 */ V(4, 9, 4),\n /* 1001 */ V(5, 7, 4),\n /* 1010 */ V(6, 7, 3),\n /* 1011 */ V(6, 7, 3),\n /* 1100 */ V(10, 2, 2),\n /* 1101 */ V(10, 2, 2),\n /* 1110 */ V(10, 2, 2),\n /* 1111 */ V(10, 2, 2),\n\n /* 0001 0001 ... */\n /* 000 */ V(1, 10, 2),\t/* 208 */\n /* 001 */ V(1, 10, 2),\n /* 010 */ V(0, 10, 3),\n /* 011 */ V(10, 0, 3),\n /* 100 */ V(3, 9, 3),\n /* 101 */ V(9, 3, 3),\n /* 110 */ V(5, 8, 3),\n /* 111 */ V(8, 5, 3),\n\n /* 0001 0010 ... */\n /* 000 */ V(2, 9, 2),\t/* 216 */\n /* 001 */ V(2, 9, 2),\n /* 010 */ V(9, 2, 2),\n /* 011 */ V(9, 2, 2),\n /* 100 */ V(7, 6, 3),\n /* 101 */ V(0, 9, 3),\n /* 110 */ V(1, 9, 2),\n /* 111 */ V(1, 9, 2),\n\n /* 0001 0011 ... */\n /* 000 */ V(9, 1, 2),\t/* 224 */\n /* 001 */ V(9, 1, 2),\n /* 010 */ V(9, 0, 3),\n /* 011 */ V(4, 8, 3),\n /* 100 */ V(8, 4, 3),\n /* 101 */ V(7, 5, 3),\n /* 110 */ V(3, 8, 3),\n /* 111 */ V(8, 3, 3),\n\n /* 0001 0100 ... */\n /* 000 */ V(6, 6, 3),\t/* 232 */\n /* 001 */ V(2, 8, 3),\n /* 010 */ V(8, 2, 2),\n /* 011 */ V(8, 2, 2),\n /* 100 */ V(4, 7, 3),\n /* 101 */ V(7, 4, 3),\n /* 110 */ V(1, 8, 2),\n /* 111 */ V(1, 8, 2),\n\n /* 0001 0101 ... */\n /* 000 */ V(8, 1, 2),\t/* 240 */\n /* 001 */ V(8, 1, 2),\n /* 010 */ V(8, 0, 2),\n /* 011 */ V(8, 0, 2),\n /* 100 */ V(0, 8, 3),\n /* 101 */ V(5, 6, 3),\n /* 110 */ V(3, 7, 2),\n /* 111 */ V(3, 7, 2),\n\n /* 0001 0110 ... */\n /* 000 */ V(7, 3, 2),\t/* 248 */\n /* 001 */ V(7, 3, 2),\n /* 010 */ V(6, 5, 3),\n /* 011 */ V(4, 6, 3),\n /* 100 */ V(2, 7, 2),\n /* 101 */ V(2, 7, 2),\n /* 110 */ V(7, 2, 2),\n /* 111 */ V(7, 2, 2),\n\n /* 0001 0111 ... */\n /* 000 */ V(6, 4, 3),\t/* 256 */\n /* 001 */ V(5, 5, 3),\n /* 010 */ V(0, 7, 2),\n /* 011 */ V(0, 7, 2),\n /* 100 */ V(1, 7, 1),\n /* 101 */ V(1, 7, 1),\n /* 110 */ V(1, 7, 1),\n /* 111 */ V(1, 7, 1),\n\n /* 0001 1000 ... */\n /* 00 */ V(7, 1, 1),\t/* 264 */\n /* 01 */ V(7, 1, 1),\n /* 10 */ V(7, 0, 2),\n /* 11 */ V(3, 6, 2),\n\n /* 0001 1001 ... */\n /* 00 */ V(6, 3, 2),\t/* 268 */\n /* 01 */ V(4, 5, 2),\n /* 10 */ V(5, 4, 2),\n /* 11 */ V(2, 6, 2),\n\n /* 0001 1010 ... */\n /* 0 */ V(6, 2, 1),\t/* 272 */\n /* 1 */ V(1, 6, 1),\n\n /* 0001 1011 ... */\n /* 00 */ V(6, 1, 1),\t/* 274 */\n /* 01 */ V(6, 1, 1),\n /* 10 */ V(0, 6, 2),\n /* 11 */ V(6, 0, 2),\n\n /* 0001 1100 ... */\n /* 00 */ V(5, 3, 1),\t/* 278 */\n /* 01 */ V(5, 3, 1),\n /* 10 */ V(3, 5, 2),\n /* 11 */ V(4, 4, 2),\n\n /* 0001 1101 ... */\n /* 0 */ V(2, 5, 1),\t/* 282 */\n /* 1 */ V(5, 2, 1),\n\n /* 0001 1111 ... */\n /* 0 */ V(1, 5, 1),\t/* 284 */\n /* 1 */ V(0, 5, 1),\n\n /* 0010 0000 ... */\n /* 0 */ V(3, 4, 1),\t/* 286 */\n /* 1 */ V(4, 3, 1),\n\n /* 0010 0001 ... */\n /* 0 */ V(5, 0, 1),\t/* 288 */\n /* 1 */ V(2, 4, 1),\n\n /* 0010 0010 ... */\n /* 0 */ V(4, 2, 1),\t/* 290 */\n /* 1 */ V(3, 3, 1),\n\n /* 0010 0101 ... */\n /* 0 */ V(0, 4, 1),\t/* 292 */\n /* 1 */ V(4, 0, 1),\n\n /* 0000 0110 1100 ... */\n /* 0000 */ V(12, 14, 4),\t/* 294 */\n /* 0001 */ PTR(400, 1),\n /* 0010 */ V(13, 14, 3),\n /* 0011 */ V(13, 14, 3),\n /* 0100 */ V(14, 9, 3),\n /* 0101 */ V(14, 9, 3),\n /* 0110 */ V(14, 10, 4),\n /* 0111 */ V(13, 9, 4),\n /* 1000 */ V(14, 14, 2),\n /* 1001 */ V(14, 14, 2),\n /* 1010 */ V(14, 14, 2),\n /* 1011 */ V(14, 14, 2),\n /* 1100 */ V(14, 13, 3),\n /* 1101 */ V(14, 13, 3),\n /* 1110 */ V(14, 11, 3),\n /* 1111 */ V(14, 11, 3),\n\n /* 0000 0110 1101 ... */\n /* 000 */ V(11, 14, 2),\t/* 310 */\n /* 001 */ V(11, 14, 2),\n /* 010 */ V(12, 13, 2),\n /* 011 */ V(12, 13, 2),\n /* 100 */ V(13, 12, 3),\n /* 101 */ V(13, 11, 3),\n /* 110 */ V(10, 14, 2),\n /* 111 */ V(10, 14, 2),\n\n /* 0000 0110 1110 ... */\n /* 000 */ V(12, 12, 2),\t/* 318 */\n /* 001 */ V(12, 12, 2),\n /* 010 */ V(10, 13, 3),\n /* 011 */ V(13, 10, 3),\n /* 100 */ V(7, 14, 3),\n /* 101 */ V(10, 12, 3),\n /* 110 */ V(12, 10, 2),\n /* 111 */ V(12, 10, 2),\n\n /* 0000 0110 1111 ... */\n /* 000 */ V(12, 9, 3),\t/* 326 */\n /* 001 */ V(7, 13, 3),\n /* 010 */ V(5, 14, 2),\n /* 011 */ V(5, 14, 2),\n /* 100 */ V(11, 13, 1),\n /* 101 */ V(11, 13, 1),\n /* 110 */ V(11, 13, 1),\n /* 111 */ V(11, 13, 1),\n\n /* 0000 1011 0000 ... */\n /* 00 */ V(9, 14, 1),\t/* 334 */\n /* 01 */ V(9, 14, 1),\n /* 10 */ V(11, 12, 2),\n /* 11 */ V(12, 11, 2),\n\n /* 0000 1011 0001 ... */\n /* 00 */ V(8, 14, 2),\t/* 338 */\n /* 01 */ V(14, 8, 2),\n /* 10 */ V(9, 13, 2),\n /* 11 */ V(14, 7, 2),\n\n /* 0000 1011 0010 ... */\n /* 00 */ V(11, 11, 2),\t/* 342 */\n /* 01 */ V(8, 13, 2),\n /* 10 */ V(13, 8, 2),\n /* 11 */ V(6, 14, 2),\n\n /* 0000 1011 0011 ... */\n /* 0 */ V(14, 6, 1),\t/* 346 */\n /* 1 */ V(9, 12, 1),\n\n /* 0000 1011 0100 ... */\n /* 00 */ V(10, 11, 2),\t/* 348 */\n /* 01 */ V(11, 10, 2),\n /* 10 */ V(14, 5, 2),\n /* 11 */ V(13, 7, 2),\n\n /* 0000 1011 0101 ... */\n /* 00 */ V(4, 14, 1),\t/* 352 */\n /* 01 */ V(4, 14, 1),\n /* 10 */ V(14, 4, 2),\n /* 11 */ V(8, 12, 2),\n\n /* 0000 1011 0110 ... */\n /* 0 */ V(12, 8, 1),\t/* 356 */\n /* 1 */ V(3, 14, 1),\n\n /* 0000 1011 0111 ... */\n /* 00 */ V(6, 13, 1),\t/* 358 */\n /* 01 */ V(6, 13, 1),\n /* 10 */ V(13, 6, 2),\n /* 11 */ V(9, 11, 2),\n\n /* 0000 1011 1000 ... */\n /* 00 */ V(11, 9, 2),\t/* 362 */\n /* 01 */ V(10, 10, 2),\n /* 10 */ V(14, 1, 1),\n /* 11 */ V(14, 1, 1),\n\n /* 0000 1011 1001 ... */\n /* 00 */ V(13, 4, 1),\t/* 366 */\n /* 01 */ V(13, 4, 1),\n /* 10 */ V(11, 8, 2),\n /* 11 */ V(10, 9, 2),\n\n /* 0000 1011 1010 ... */\n /* 00 */ V(7, 11, 1),\t/* 370 */\n /* 01 */ V(7, 11, 1),\n /* 10 */ V(11, 7, 2),\n /* 11 */ V(13, 0, 2),\n\n /* 0000 1011 1100 ... */\n /* 0 */ V(0, 14, 1),\t/* 374 */\n /* 1 */ V(14, 0, 1),\n\n /* 0000 1011 1101 ... */\n /* 0 */ V(5, 13, 1),\t/* 376 */\n /* 1 */ V(13, 5, 1),\n\n /* 0000 1011 1110 ... */\n /* 0 */ V(7, 12, 1),\t/* 378 */\n /* 1 */ V(12, 7, 1),\n\n /* 0000 1011 1111 ... */\n /* 0 */ V(4, 13, 1),\t/* 380 */\n /* 1 */ V(8, 11, 1),\n\n /* 0000 1100 0000 ... */\n /* 0 */ V(9, 10, 1),\t/* 382 */\n /* 1 */ V(6, 12, 1),\n\n /* 0000 1100 0001 ... */\n /* 0 */ V(12, 6, 1),\t/* 384 */\n /* 1 */ V(3, 13, 1),\n\n /* 0000 1100 0010 ... */\n /* 0 */ V(5, 12, 1),\t/* 386 */\n /* 1 */ V(12, 5, 1),\n\n /* 0000 1100 0100 ... */\n /* 0 */ V(8, 10, 1),\t/* 388 */\n /* 1 */ V(10, 8, 1),\n\n /* 0000 1100 0101 ... */\n /* 0 */ V(9, 9, 1),\t/* 390 */\n /* 1 */ V(4, 12, 1),\n\n /* 0000 1100 0110 ... */\n /* 0 */ V(11, 6, 1),\t/* 392 */\n /* 1 */ V(7, 10, 1),\n\n /* 0000 1100 1000 ... */\n /* 0 */ V(5, 11, 1),\t/* 394 */\n /* 1 */ V(8, 9, 1),\n\n /* 0000 1100 1011 ... */\n /* 0 */ V(9, 8, 1),\t/* 396 */\n /* 1 */ V(7, 9, 1),\n\n /* 0000 1101 0101 ... */\n /* 0 */ V(9, 7, 1),\t/* 398 */\n /* 1 */ V(8, 8, 1),\n\n /* 0000 0110 1100 0001 ... */\n /* 0 */ V(14, 12, 1),\t/* 400 */\n /* 1 */ V(13, 13, 1)\n];\n\nconst hufftab24 = [\n /* 0000 */ PTR(16, 4),\n /* 0001 */ PTR(32, 4),\n /* 0010 */ PTR(48, 4),\n /* 0011 */ V(15, 15, 4),\n /* 0100 */ PTR(64, 4),\n /* 0101 */ PTR(80, 4),\n /* 0110 */ PTR(96, 4),\n /* 0111 */ PTR(112, 4),\n /* 1000 */ PTR(128, 4),\n /* 1001 */ PTR(144, 4),\n /* 1010 */ PTR(160, 3),\n /* 1011 */ PTR(168, 2),\n /* 1100 */ V(1, 1, 4),\n /* 1101 */ V(0, 1, 4),\n /* 1110 */ V(1, 0, 4),\n /* 1111 */ V(0, 0, 4),\n\n /* 0000 ... */\n /* 0000 */ V(14, 15, 4),\t/* 16 */\n /* 0001 */ V(15, 14, 4),\n /* 0010 */ V(13, 15, 4),\n /* 0011 */ V(15, 13, 4),\n /* 0100 */ V(12, 15, 4),\n /* 0101 */ V(15, 12, 4),\n /* 0110 */ V(11, 15, 4),\n /* 0111 */ V(15, 11, 4),\n /* 1000 */ V(15, 10, 3),\n /* 1001 */ V(15, 10, 3),\n /* 1010 */ V(10, 15, 4),\n /* 1011 */ V(9, 15, 4),\n /* 1100 */ V(15, 9, 3),\n /* 1101 */ V(15, 9, 3),\n /* 1110 */ V(15, 8, 3),\n /* 1111 */ V(15, 8, 3),\n\n /* 0001 ... */\n /* 0000 */ V(8, 15, 4),\t/* 32 */\n /* 0001 */ V(7, 15, 4),\n /* 0010 */ V(15, 7, 3),\n /* 0011 */ V(15, 7, 3),\n /* 0100 */ V(6, 15, 3),\n /* 0101 */ V(6, 15, 3),\n /* 0110 */ V(15, 6, 3),\n /* 0111 */ V(15, 6, 3),\n /* 1000 */ V(5, 15, 3),\n /* 1001 */ V(5, 15, 3),\n /* 1010 */ V(15, 5, 3),\n /* 1011 */ V(15, 5, 3),\n /* 1100 */ V(4, 15, 3),\n /* 1101 */ V(4, 15, 3),\n /* 1110 */ V(15, 4, 3),\n /* 1111 */ V(15, 4, 3),\n\n /* 0010 ... */\n /* 0000 */ V(3, 15, 3),\t/* 48 */\n /* 0001 */ V(3, 15, 3),\n /* 0010 */ V(15, 3, 3),\n /* 0011 */ V(15, 3, 3),\n /* 0100 */ V(2, 15, 3),\n /* 0101 */ V(2, 15, 3),\n /* 0110 */ V(15, 2, 3),\n /* 0111 */ V(15, 2, 3),\n /* 1000 */ V(15, 1, 3),\n /* 1001 */ V(15, 1, 3),\n /* 1010 */ V(1, 15, 4),\n /* 1011 */ V(15, 0, 4),\n /* 1100 */ PTR(172, 3),\n /* 1101 */ PTR(180, 3),\n /* 1110 */ PTR(188, 3),\n /* 1111 */ PTR(196, 3),\n\n /* 0100 ... */\n /* 0000 */ PTR(204, 4),\t/* 64 */\n /* 0001 */ PTR(220, 3),\n /* 0010 */ PTR(228, 3),\n /* 0011 */ PTR(236, 3),\n /* 0100 */ PTR(244, 2),\n /* 0101 */ PTR(248, 2),\n /* 0110 */ PTR(252, 2),\n /* 0111 */ PTR(256, 2),\n /* 1000 */ PTR(260, 2),\n /* 1001 */ PTR(264, 2),\n /* 1010 */ PTR(268, 2),\n /* 1011 */ PTR(272, 2),\n /* 1100 */ PTR(276, 2),\n /* 1101 */ PTR(280, 3),\n /* 1110 */ PTR(288, 2),\n /* 1111 */ PTR(292, 2),\n\n /* 0101 ... */\n /* 0000 */ PTR(296, 2),\t/* 80 */\n /* 0001 */ PTR(300, 3),\n /* 0010 */ PTR(308, 2),\n /* 0011 */ PTR(312, 3),\n /* 0100 */ PTR(320, 1),\n /* 0101 */ PTR(322, 2),\n /* 0110 */ PTR(326, 2),\n /* 0111 */ PTR(330, 1),\n /* 1000 */ PTR(332, 2),\n /* 1001 */ PTR(336, 1),\n /* 1010 */ PTR(338, 1),\n /* 1011 */ PTR(340, 1),\n /* 1100 */ PTR(342, 1),\n /* 1101 */ PTR(344, 1),\n /* 1110 */ PTR(346, 1),\n /* 1111 */ PTR(348, 1),\n\n /* 0110 ... */\n /* 0000 */ PTR(350, 1),\t/* 96 */\n /* 0001 */ PTR(352, 1),\n /* 0010 */ PTR(354, 1),\n /* 0011 */ PTR(356, 1),\n /* 0100 */ PTR(358, 1),\n /* 0101 */ PTR(360, 1),\n /* 0110 */ PTR(362, 1),\n /* 0111 */ PTR(364, 1),\n /* 1000 */ PTR(366, 1),\n /* 1001 */ PTR(368, 1),\n /* 1010 */ PTR(370, 2),\n /* 1011 */ PTR(374, 1),\n /* 1100 */ PTR(376, 2),\n /* 1101 */ V(7, 3, 4),\n /* 1110 */ PTR(380, 1),\n /* 1111 */ V(7, 2, 4),\n\n /* 0111 ... */\n /* 0000 */ V(4, 6, 4),\t/* 112 */\n /* 0001 */ V(6, 4, 4),\n /* 0010 */ V(5, 5, 4),\n /* 0011 */ V(7, 1, 4),\n /* 0100 */ V(3, 6, 4),\n /* 0101 */ V(6, 3, 4),\n /* 0110 */ V(4, 5, 4),\n /* 0111 */ V(5, 4, 4),\n /* 1000 */ V(2, 6, 4),\n /* 1001 */ V(6, 2, 4),\n /* 1010 */ V(1, 6, 4),\n /* 1011 */ V(6, 1, 4),\n /* 1100 */ PTR(382, 1),\n /* 1101 */ V(3, 5, 4),\n /* 1110 */ V(5, 3, 4),\n /* 1111 */ V(4, 4, 4),\n\n /* 1000 ... */\n /* 0000 */ V(2, 5, 4),\t/* 128 */\n /* 0001 */ V(5, 2, 4),\n /* 0010 */ V(1, 5, 4),\n /* 0011 */ PTR(384, 1),\n /* 0100 */ V(5, 1, 3),\n /* 0101 */ V(5, 1, 3),\n /* 0110 */ V(3, 4, 4),\n /* 0111 */ V(4, 3, 4),\n /* 1000 */ V(2, 4, 3),\n /* 1001 */ V(2, 4, 3),\n /* 1010 */ V(4, 2, 3),\n /* 1011 */ V(4, 2, 3),\n /* 1100 */ V(3, 3, 3),\n /* 1101 */ V(3, 3, 3),\n /* 1110 */ V(1, 4, 3),\n /* 1111 */ V(1, 4, 3),\n\n /* 1001 ... */\n /* 0000 */ V(4, 1, 3),\t/* 144 */\n /* 0001 */ V(4, 1, 3),\n /* 0010 */ V(0, 4, 4),\n /* 0011 */ V(4, 0, 4),\n /* 0100 */ V(2, 3, 3),\n /* 0101 */ V(2, 3, 3),\n /* 0110 */ V(3, 2, 3),\n /* 0111 */ V(3, 2, 3),\n /* 1000 */ V(1, 3, 2),\n /* 1001 */ V(1, 3, 2),\n /* 1010 */ V(1, 3, 2),\n /* 1011 */ V(1, 3, 2),\n /* 1100 */ V(3, 1, 2),\n /* 1101 */ V(3, 1, 2),\n /* 1110 */ V(3, 1, 2),\n /* 1111 */ V(3, 1, 2),\n\n /* 1010 ... */\n /* 000 */ V(0, 3, 3),\t/* 160 */\n /* 001 */ V(3, 0, 3),\n /* 010 */ V(2, 2, 2),\n /* 011 */ V(2, 2, 2),\n /* 100 */ V(1, 2, 1),\n /* 101 */ V(1, 2, 1),\n /* 110 */ V(1, 2, 1),\n /* 111 */ V(1, 2, 1),\n\n /* 1011 ... */\n /* 00 */ V(2, 1, 1),\t/* 168 */\n /* 01 */ V(2, 1, 1),\n /* 10 */ V(0, 2, 2),\n /* 11 */ V(2, 0, 2),\n\n /* 0010 1100 ... */\n /* 000 */ V(0, 15, 1),\t/* 172 */\n /* 001 */ V(0, 15, 1),\n /* 010 */ V(0, 15, 1),\n /* 011 */ V(0, 15, 1),\n /* 100 */ V(14, 14, 3),\n /* 101 */ V(13, 14, 3),\n /* 110 */ V(14, 13, 3),\n /* 111 */ V(12, 14, 3),\n\n /* 0010 1101 ... */\n /* 000 */ V(14, 12, 3),\t/* 180 */\n /* 001 */ V(13, 13, 3),\n /* 010 */ V(11, 14, 3),\n /* 011 */ V(14, 11, 3),\n /* 100 */ V(12, 13, 3),\n /* 101 */ V(13, 12, 3),\n /* 110 */ V(10, 14, 3),\n /* 111 */ V(14, 10, 3),\n\n /* 0010 1110 ... */\n /* 000 */ V(11, 13, 3),\t/* 188 */\n /* 001 */ V(13, 11, 3),\n /* 010 */ V(12, 12, 3),\n /* 011 */ V(9, 14, 3),\n /* 100 */ V(14, 9, 3),\n /* 101 */ V(10, 13, 3),\n /* 110 */ V(13, 10, 3),\n /* 111 */ V(11, 12, 3),\n\n /* 0010 1111 ... */\n /* 000 */ V(12, 11, 3),\t/* 196 */\n /* 001 */ V(8, 14, 3),\n /* 010 */ V(14, 8, 3),\n /* 011 */ V(9, 13, 3),\n /* 100 */ V(13, 9, 3),\n /* 101 */ V(7, 14, 3),\n /* 110 */ V(14, 7, 3),\n /* 111 */ V(10, 12, 3),\n\n /* 0100 0000 ... */\n /* 0000 */ V(12, 10, 3),\t/* 204 */\n /* 0001 */ V(12, 10, 3),\n /* 0010 */ V(11, 11, 3),\n /* 0011 */ V(11, 11, 3),\n /* 0100 */ V(8, 13, 3),\n /* 0101 */ V(8, 13, 3),\n /* 0110 */ V(13, 8, 3),\n /* 0111 */ V(13, 8, 3),\n /* 1000 */ V(0, 14, 4),\n /* 1001 */ V(14, 0, 4),\n /* 1010 */ V(0, 13, 3),\n /* 1011 */ V(0, 13, 3),\n /* 1100 */ V(14, 6, 2),\n /* 1101 */ V(14, 6, 2),\n /* 1110 */ V(14, 6, 2),\n /* 1111 */ V(14, 6, 2),\n\n /* 0100 0001 ... */\n /* 000 */ V(6, 14, 3),\t/* 220 */\n /* 001 */ V(9, 12, 3),\n /* 010 */ V(12, 9, 2),\n /* 011 */ V(12, 9, 2),\n /* 100 */ V(5, 14, 2),\n /* 101 */ V(5, 14, 2),\n /* 110 */ V(11, 10, 2),\n /* 111 */ V(11, 10, 2),\n\n /* 0100 0010 ... */\n /* 000 */ V(14, 5, 2),\t/* 228 */\n /* 001 */ V(14, 5, 2),\n /* 010 */ V(10, 11, 3),\n /* 011 */ V(7, 13, 3),\n /* 100 */ V(13, 7, 2),\n /* 101 */ V(13, 7, 2),\n /* 110 */ V(14, 4, 2),\n /* 111 */ V(14, 4, 2),\n\n /* 0100 0011 ... */\n /* 000 */ V(8, 12, 2),\t/* 236 */\n /* 001 */ V(8, 12, 2),\n /* 010 */ V(12, 8, 2),\n /* 011 */ V(12, 8, 2),\n /* 100 */ V(4, 14, 3),\n /* 101 */ V(2, 14, 3),\n /* 110 */ V(3, 14, 2),\n /* 111 */ V(3, 14, 2),\n\n /* 0100 0100 ... */\n /* 00 */ V(6, 13, 2),\t/* 244 */\n /* 01 */ V(13, 6, 2),\n /* 10 */ V(14, 3, 2),\n /* 11 */ V(9, 11, 2),\n\n /* 0100 0101 ... */\n /* 00 */ V(11, 9, 2),\t/* 248 */\n /* 01 */ V(10, 10, 2),\n /* 10 */ V(14, 2, 2),\n /* 11 */ V(1, 14, 2),\n\n /* 0100 0110 ... */\n /* 00 */ V(14, 1, 2),\t/* 252 */\n /* 01 */ V(5, 13, 2),\n /* 10 */ V(13, 5, 2),\n /* 11 */ V(7, 12, 2),\n\n /* 0100 0111 ... */\n /* 00 */ V(12, 7, 2),\t/* 256 */\n /* 01 */ V(4, 13, 2),\n /* 10 */ V(8, 11, 2),\n /* 11 */ V(11, 8, 2),\n\n /* 0100 1000 ... */\n /* 00 */ V(13, 4, 2),\t/* 260 */\n /* 01 */ V(9, 10, 2),\n /* 10 */ V(10, 9, 2),\n /* 11 */ V(6, 12, 2),\n\n /* 0100 1001 ... */\n /* 00 */ V(12, 6, 2),\t/* 264 */\n /* 01 */ V(3, 13, 2),\n /* 10 */ V(13, 3, 2),\n /* 11 */ V(2, 13, 2),\n\n /* 0100 1010 ... */\n /* 00 */ V(13, 2, 2),\t/* 268 */\n /* 01 */ V(1, 13, 2),\n /* 10 */ V(7, 11, 2),\n /* 11 */ V(11, 7, 2),\n\n /* 0100 1011 ... */\n /* 00 */ V(13, 1, 2),\t/* 272 */\n /* 01 */ V(5, 12, 2),\n /* 10 */ V(12, 5, 2),\n /* 11 */ V(8, 10, 2),\n\n /* 0100 1100 ... */\n /* 00 */ V(10, 8, 2),\t/* 276 */\n /* 01 */ V(9, 9, 2),\n /* 10 */ V(4, 12, 2),\n /* 11 */ V(12, 4, 2),\n\n /* 0100 1101 ... */\n /* 000 */ V(6, 11, 2),\t/* 280 */\n /* 001 */ V(6, 11, 2),\n /* 010 */ V(11, 6, 2),\n /* 011 */ V(11, 6, 2),\n /* 100 */ V(13, 0, 3),\n /* 101 */ V(0, 12, 3),\n /* 110 */ V(3, 12, 2),\n /* 111 */ V(3, 12, 2),\n\n /* 0100 1110 ... */\n /* 00 */ V(12, 3, 2),\t/* 288 */\n /* 01 */ V(7, 10, 2),\n /* 10 */ V(10, 7, 2),\n /* 11 */ V(2, 12, 2),\n\n /* 0100 1111 ... */\n /* 00 */ V(12, 2, 2),\t/* 292 */\n /* 01 */ V(5, 11, 2),\n /* 10 */ V(11, 5, 2),\n /* 11 */ V(1, 12, 2),\n\n /* 0101 0000 ... */\n /* 00 */ V(8, 9, 2),\t/* 296 */\n /* 01 */ V(9, 8, 2),\n /* 10 */ V(12, 1, 2),\n /* 11 */ V(4, 11, 2),\n\n /* 0101 0001 ... */\n /* 000 */ V(12, 0, 3),\t/* 300 */\n /* 001 */ V(0, 11, 3),\n /* 010 */ V(3, 11, 2),\n /* 011 */ V(3, 11, 2),\n /* 100 */ V(11, 0, 3),\n /* 101 */ V(0, 10, 3),\n /* 110 */ V(1, 10, 2),\n /* 111 */ V(1, 10, 2),\n\n /* 0101 0010 ... */\n /* 00 */ V(11, 4, 1),\t/* 308 */\n /* 01 */ V(11, 4, 1),\n /* 10 */ V(6, 10, 2),\n /* 11 */ V(10, 6, 2),\n\n /* 0101 0011 ... */\n /* 000 */ V(7, 9, 2),\t/* 312 */\n /* 001 */ V(7, 9, 2),\n /* 010 */ V(9, 7, 2),\n /* 011 */ V(9, 7, 2),\n /* 100 */ V(10, 0, 3),\n /* 101 */ V(0, 9, 3),\n /* 110 */ V(9, 0, 2),\n /* 111 */ V(9, 0, 2),\n\n /* 0101 0100 ... */\n /* 0 */ V(11, 3, 1),\t/* 320 */\n /* 1 */ V(8, 8, 1),\n\n /* 0101 0101 ... */\n /* 00 */ V(2, 11, 2),\t/* 322 */\n /* 01 */ V(5, 10, 2),\n /* 10 */ V(11, 2, 1),\n /* 11 */ V(11, 2, 1),\n\n /* 0101 0110 ... */\n /* 00 */ V(10, 5, 2),\t/* 326 */\n /* 01 */ V(1, 11, 2),\n /* 10 */ V(11, 1, 2),\n /* 11 */ V(6, 9, 2),\n\n /* 0101 0111 ... */\n /* 0 */ V(9, 6, 1),\t/* 330 */\n /* 1 */ V(10, 4, 1),\n\n /* 0101 1000 ... */\n /* 00 */ V(4, 10, 2),\t/* 332 */\n /* 01 */ V(7, 8, 2),\n /* 10 */ V(8, 7, 1),\n /* 11 */ V(8, 7, 1),\n\n /* 0101 1001 ... */\n /* 0 */ V(3, 10, 1),\t/* 336 */\n /* 1 */ V(10, 3, 1),\n\n /* 0101 1010 ... */\n /* 0 */ V(5, 9, 1),\t/* 338 */\n /* 1 */ V(9, 5, 1),\n\n /* 0101 1011 ... */\n /* 0 */ V(2, 10, 1),\t/* 340 */\n /* 1 */ V(10, 2, 1),\n\n /* 0101 1100 ... */\n /* 0 */ V(10, 1, 1),\t/* 342 */\n /* 1 */ V(6, 8, 1),\n\n /* 0101 1101 ... */\n /* 0 */ V(8, 6, 1),\t/* 344 */\n /* 1 */ V(7, 7, 1),\n\n /* 0101 1110 ... */\n /* 0 */ V(4, 9, 1),\t/* 346 */\n /* 1 */ V(9, 4, 1),\n\n /* 0101 1111 ... */\n /* 0 */ V(3, 9, 1),\t/* 348 */\n /* 1 */ V(9, 3, 1),\n\n /* 0110 0000 ... */\n /* 0 */ V(5, 8, 1),\t/* 350 */\n /* 1 */ V(8, 5, 1),\n\n /* 0110 0001 ... */\n /* 0 */ V(2, 9, 1),\t/* 352 */\n /* 1 */ V(6, 7, 1),\n\n /* 0110 0010 ... */\n /* 0 */ V(7, 6, 1),\t/* 354 */\n /* 1 */ V(9, 2, 1),\n\n /* 0110 0011 ... */\n /* 0 */ V(1, 9, 1),\t/* 356 */\n /* 1 */ V(9, 1, 1),\n\n /* 0110 0100 ... */\n /* 0 */ V(4, 8, 1),\t/* 358 */\n /* 1 */ V(8, 4, 1),\n\n /* 0110 0101 ... */\n /* 0 */ V(5, 7, 1),\t/* 360 */\n /* 1 */ V(7, 5, 1),\n\n /* 0110 0110 ... */\n /* 0 */ V(3, 8, 1),\t/* 362 */\n /* 1 */ V(8, 3, 1),\n\n /* 0110 0111 ... */\n /* 0 */ V(6, 6, 1),\t/* 364 */\n /* 1 */ V(2, 8, 1),\n\n /* 0110 1000 ... */\n /* 0 */ V(8, 2, 1),\t/* 366 */\n /* 1 */ V(1, 8, 1),\n\n /* 0110 1001 ... */\n /* 0 */ V(4, 7, 1),\t/* 368 */\n /* 1 */ V(7, 4, 1),\n\n /* 0110 1010 ... */\n /* 00 */ V(8, 1, 1),\t/* 370 */\n /* 01 */ V(8, 1, 1),\n /* 10 */ V(0, 8, 2),\n /* 11 */ V(8, 0, 2),\n\n /* 0110 1011 ... */\n /* 0 */ V(5, 6, 1),\t/* 374 */\n /* 1 */ V(6, 5, 1),\n\n /* 0110 1100 ... */\n /* 00 */ V(1, 7, 1),\t/* 376 */\n /* 01 */ V(1, 7, 1),\n /* 10 */ V(0, 7, 2),\n /* 11 */ V(7, 0, 2),\n\n /* 0110 1110 ... */\n /* 0 */ V(3, 7, 1),\t/* 380 */\n /* 1 */ V(2, 7, 1),\n\n /* 0111 1100 ... */\n /* 0 */ V(0, 6, 1),\t/* 382 */\n /* 1 */ V(6, 0, 1),\n\n /* 1000 0011 ... */\n /* 0 */ V(0, 5, 1),\t/* 384 */\n /* 1 */ V(5, 0, 1)\n];\n\n/* hufftable constructor */\nfunction MP3Hufftable(table, linbits, startbits) {\n this.table = table;\n this.linbits = linbits;\n this.startbits = startbits;\n};\n\n/* external tables */\nexports.huff_quad_table = [ hufftabA, hufftabB ];\nexports.huff_pair_table = [\n /* 0 */ new MP3Hufftable(hufftab0, 0, 0),\n /* 1 */ new MP3Hufftable(hufftab1, 0, 3),\n /* 2 */ new MP3Hufftable(hufftab2, 0, 3),\n /* 3 */ new MP3Hufftable(hufftab3, 0, 3),\n /* 4 */ null, //new MP3Hufftable(0 /* not used */),\n /* 5 */ new MP3Hufftable(hufftab5, 0, 3),\n /* 6 */ new MP3Hufftable(hufftab6, 0, 4),\n /* 7 */ new MP3Hufftable(hufftab7, 0, 4),\n /* 8 */ new MP3Hufftable(hufftab8, 0, 4),\n /* 9 */ new MP3Hufftable(hufftab9, 0, 4),\n /* 10 */ new MP3Hufftable(hufftab10, 0, 4),\n /* 11 */ new MP3Hufftable(hufftab11, 0, 4),\n /* 12 */ new MP3Hufftable(hufftab12, 0, 4),\n /* 13 */ new MP3Hufftable(hufftab13, 0, 4),\n /* 14 */ null, //new MP3Hufftable(0 /* not used */),\n /* 15 */ new MP3Hufftable(hufftab15, 0, 4),\n /* 16 */ new MP3Hufftable(hufftab16, 1, 4),\n /* 17 */ new MP3Hufftable(hufftab16, 2, 4),\n /* 18 */ new MP3Hufftable(hufftab16, 3, 4),\n /* 19 */ new MP3Hufftable(hufftab16, 4, 4),\n /* 20 */ new MP3Hufftable(hufftab16, 6, 4),\n /* 21 */ new MP3Hufftable(hufftab16, 8, 4),\n /* 22 */ new MP3Hufftable(hufftab16, 10, 4),\n /* 23 */ new MP3Hufftable(hufftab16, 13, 4),\n /* 24 */ new MP3Hufftable(hufftab24, 4, 4),\n /* 25 */ new MP3Hufftable(hufftab24, 5, 4),\n /* 26 */ new MP3Hufftable(hufftab24, 6, 4),\n /* 27 */ new MP3Hufftable(hufftab24, 7, 4),\n /* 28 */ new MP3Hufftable(hufftab24, 8, 4),\n /* 29 */ new MP3Hufftable(hufftab24, 9, 4),\n /* 30 */ new MP3Hufftable(hufftab24, 11, 4),\n /* 31 */ new MP3Hufftable(hufftab24, 13, 4)\n];\n", 32 "var AV = (window.AV);\n\nconst ENCODINGS = ['latin1', 'utf16-bom', 'utf16-be', 'utf8'];\n\nvar ID3Stream = AV.Base.extend({\n constructor: function(header, stream) {\n this.header = header;\n this.stream = stream;\n this.offset = 0;\n },\n \n read: function() {\n if (!this.data) {\n this.data = {};\n \n // read all frames\n var frame;\n while (frame = this.readFrame()) {\n // if we already have an instance of this key, add it to an array\n if (frame.key in this.data) {\n if (!Array.isArray(this.data[frame.key]))\n this.data[frame.key] = [this.data[frame.key]];\n \n this.data[frame.key].push(frame.value);\n } else {\n this.data[frame.key] = frame.value;\n }\n }\n }\n\n return this.data;\n },\n \n readFrame: function() {\n if (this.offset >= this.header.length)\n return null;\n \n // get the header \n var header = this.readHeader();\n var decoder = header.identifier;\n \n if (header.identifier.charCodeAt(0) === 0) {\n this.offset += this.header.length + 1;\n return null;\n }\n \n // map common frame names to a single type\n if (!this.frameTypes[decoder]) {\n for (var key in this.map) {\n if (this.map[key].indexOf(decoder) !== -1) {\n decoder = key;\n break;\n }\n }\n }\n\n if (this.frameTypes[decoder]) {\n // decode the frame\n var frame = this.decodeFrame(header, this.frameTypes[decoder]),\n keys = Object.keys(frame);\n \n // if it only returned one key, use that as the value \n if (keys.length === 1)\n frame = frame[keys[0]];\n \n var result = {\n value: frame\n };\n \n } else {\n // No frame type found, treat it as binary\n var result = {\n value: this.stream.readBuffer(Math.min(header.length, this.header.length - this.offset))\n };\n }\n\n result.key = this.names[header.identifier] ? this.names[header.identifier] : header.identifier;\n \n // special sauce for cover art, which should just be a buffer\n if (result.key === 'coverArt')\n result.value = result.value.data;\n\n this.offset += 10 + header.length;\n return result;\n },\n\n decodeFrame: function(header, fields) {\n var stream = this.stream,\n start = stream.offset;\n \n var encoding = 0, ret = {};\n var len = Object.keys(fields).length, i = 0;\n \n for (var key in fields) {\n var type = fields[key];\n var rest = header.length - (stream.offset - start);\n i++;\n \n // check for special field names\n switch (key) {\n case 'encoding':\n encoding = stream.readUInt8();\n continue;\n \n case 'language':\n ret.language = stream.readString(3);\n continue;\n }\n \n // check types\n switch (type) { \n case 'latin1':\n ret[key] = stream.readString(i === len ? rest : null, 'latin1');\n break;\n \n case 'string':\n ret[key] = stream.readString(i === len ? rest : null, ENCODINGS[encoding]);\n break;\n \n case 'binary':\n ret[key] = stream.readBuffer(rest)\n break;\n \n case 'int16':\n ret[key] = stream.readInt16();\n break;\n \n case 'int8':\n ret[key] = stream.readInt8();\n break;\n \n case 'int24':\n ret[key] = stream.readInt24();\n break;\n \n case 'int32':\n ret[key] = stream.readInt32();\n break;\n \n case 'int32+':\n ret[key] = stream.readInt32();\n if (rest > 4)\n throw new Error('Seriously dude? Stop playing this song and get a life!');\n \n break;\n \n case 'date':\n var val = stream.readString(8);\n ret[key] = new Date(val.slice(0, 4), val.slice(4, 6) - 1, val.slice(6, 8));\n break;\n \n case 'frame_id':\n ret[key] = stream.readString(4);\n break;\n \n default:\n throw new Error('Unknown key type ' + type);\n }\n }\n \n // Just in case something went wrong...\n var rest = header.length - (stream.offset - start);\n if (rest > 0)\n stream.advance(rest);\n \n return ret;\n }\n});\n\n// ID3 v2.3 and v2.4 support\nexports.ID3v23Stream = ID3Stream.extend({\n readHeader: function() {\n var identifier = this.stream.readString(4); \n var length = 0;\n \n if (this.header.major === 4) {\n for (var i = 0; i < 4; i++)\n length = (length << 7) + (this.stream.readUInt8() & 0x7f);\n } else {\n length = this.stream.readUInt32();\n }\n \n return {\n identifier: identifier,\n length: length,\n flags: this.stream.readUInt16()\n };\n },\n \n map: {\n text: [\n // Identification Frames\n 'TIT1', 'TIT2', 'TIT3', 'TALB', 'TOAL', 'TRCK', 'TPOS', 'TSST', 'TSRC',\n\n // Involved Persons Frames\n 'TPE1', 'TPE2', 'TPE3', 'TPE4', 'TOPE', 'TEXT', 'TOLY', 'TCOM', 'TMCL', 'TIPL', 'TENC',\n\n // Derived and Subjective Properties Frames\n 'TBPM', 'TLEN', 'TKEY', 'TLAN', 'TCON', 'TFLT', 'TMED', 'TMOO',\n\n // Rights and Licence Frames\n 'TCOP', 'TPRO', 'TPUB', 'TOWN', 'TRSN', 'TRSO',\n\n // Other Text Frames\n 'TOFN', 'TDLY', 'TDEN', 'TDOR', 'TDRC', 'TDRL', 'TDTG', 'TSSE', 'TSOA', 'TSOP', 'TSOT',\n \n // Deprecated Text Frames\n 'TDAT', 'TIME', 'TORY', 'TRDA', 'TSIZ', 'TYER',\n \n // Non-standard iTunes Frames\n 'TCMP', 'TSO2', 'TSOC'\n ],\n \n url: [\n 'WCOM', 'WCOP', 'WOAF', 'WOAR', 'WOAS', 'WORS', 'WPAY', 'WPUB'\n ]\n },\n \n frameTypes: { \n text: {\n encoding: 1,\n value: 'string'\n },\n \n url: {\n value: 'latin1'\n },\n \n TXXX: {\n encoding: 1,\n description: 'string',\n value: 'string'\n },\n \n WXXX: {\n encoding: 1,\n description: 'string',\n value: 'latin1',\n },\n \n USLT: {\n encoding: 1,\n language: 1,\n description: 'string',\n value: 'string'\n },\n \n COMM: {\n encoding: 1,\n language: 1,\n description: 'string',\n value: 'string'\n },\n \n APIC: {\n encoding: 1,\n mime: 'latin1',\n type: 'int8',\n description: 'string',\n data: 'binary'\n },\n \n UFID: {\n owner: 'latin1',\n identifier: 'binary'\n },\n\n MCDI: {\n value: 'binary'\n },\n \n PRIV: {\n owner: 'latin1',\n value: 'binary'\n },\n \n GEOB: {\n encoding: 1,\n mime: 'latin1',\n filename: 'string',\n description: 'string',\n data: 'binary'\n },\n \n PCNT: {\n value: 'int32+'\n },\n \n POPM: {\n email: 'latin1',\n rating: 'int8',\n counter: 'int32+'\n },\n \n AENC: {\n owner: 'latin1',\n previewStart: 'int16',\n previewLength: 'int16',\n encryptionInfo: 'binary'\n },\n \n ETCO: {\n format: 'int8',\n data: 'binary' // TODO\n },\n \n MLLT: {\n framesBetweenReference: 'int16',\n bytesBetweenReference: 'int24',\n millisecondsBetweenReference: 'int24',\n bitsForBytesDeviation: 'int8',\n bitsForMillisecondsDev: 'int8',\n data: 'binary' // TODO\n },\n \n SYTC: {\n format: 'int8',\n tempoData: 'binary' // TODO\n },\n \n SYLT: {\n encoding: 1,\n language: 1,\n format: 'int8',\n contentType: 'int8',\n description: 'string',\n data: 'binary' // TODO\n },\n \n RVA2: {\n identification: 'latin1',\n data: 'binary' // TODO\n },\n \n EQU2: {\n interpolationMethod: 'int8',\n identification: 'latin1',\n data: 'binary' // TODO\n },\n \n RVRB: {\n left: 'int16',\n right: 'int16',\n bouncesLeft: 'int8',\n bouncesRight: 'int8',\n feedbackLL: 'int8',\n feedbackLR: 'int8',\n feedbackRR: 'int8',\n feedbackRL: 'int8',\n premixLR: 'int8',\n premixRL: 'int8'\n },\n \n RBUF: {\n size: 'int24',\n flag: 'int8',\n offset: 'int32'\n },\n \n LINK: {\n identifier: 'frame_id',\n url: 'latin1',\n data: 'binary' // TODO stringlist?\n },\n \n POSS: {\n format: 'int8',\n position: 'binary' // TODO\n },\n \n USER: {\n encoding: 1,\n language: 1,\n value: 'string'\n },\n \n OWNE: {\n encoding: 1,\n price: 'latin1',\n purchaseDate: 'date',\n seller: 'string'\n },\n \n COMR: {\n encoding: 1,\n price: 'latin1',\n validUntil: 'date',\n contactURL: 'latin1',\n receivedAs: 'int8',\n seller: 'string',\n description: 'string',\n logoMime: 'latin1',\n logo: 'binary'\n },\n \n ENCR: {\n owner: 'latin1',\n methodSymbol: 'int8',\n data: 'binary'\n },\n \n GRID: {\n owner: 'latin1',\n groupSymbol: 'int8',\n data: 'binary'\n },\n \n SIGN: {\n groupSymbol: 'int8',\n signature: 'binary'\n },\n \n SEEK: {\n value: 'int32'\n },\n \n ASPI: {\n dataStart: 'int32',\n dataLength: 'int32',\n numPoints: 'int16',\n bitsPerPoint: 'int8',\n data: 'binary' // TODO\n },\n \n // Deprecated ID3 v2.3 frames\n IPLS: {\n encoding: 1,\n value: 'string' // list?\n },\n \n RVAD: {\n adjustment: 'int8',\n bits: 'int8',\n data: 'binary' // TODO\n },\n \n EQUA: {\n adjustmentBits: 'int8',\n data: 'binary' // TODO\n }\n },\n \n names: {\n // Identification Frames\n 'TIT1': 'grouping',\n 'TIT2': 'title',\n 'TIT3': 'subtitle',\n 'TALB': 'album',\n 'TOAL': 'originalAlbumTitle',\n 'TRCK': 'trackNumber',\n 'TPOS': 'diskNumber',\n 'TSST': 'setSubtitle',\n 'TSRC': 'ISRC',\n\n // Involved Persons Frames\n 'TPE1': 'artist',\n 'TPE2': 'albumArtist',\n 'TPE3': 'conductor',\n 'TPE4': 'modifiedBy',\n 'TOPE': 'originalArtist',\n 'TEXT': 'lyricist',\n 'TOLY': 'originalLyricist',\n 'TCOM': 'composer',\n 'TMCL': 'musicianCreditsList',\n 'TIPL': 'involvedPeopleList',\n 'TENC': 'encodedBy',\n\n // Derived and Subjective Properties Frames\n 'TBPM': 'tempo',\n 'TLEN': 'length',\n 'TKEY': 'initialKey',\n 'TLAN': 'language',\n 'TCON': 'genre',\n 'TFLT': 'fileType',\n 'TMED': 'mediaType',\n 'TMOO': 'mood',\n\n // Rights and Licence Frames\n 'TCOP': 'copyright',\n 'TPRO': 'producedNotice',\n 'TPUB': 'publisher',\n 'TOWN': 'fileOwner',\n 'TRSN': 'internetRadioStationName',\n 'TRSO': 'internetRadioStationOwner',\n\n // Other Text Frames\n 'TOFN': 'originalFilename',\n 'TDLY': 'playlistDelay',\n 'TDEN': 'encodingTime',\n 'TDOR': 'originalReleaseTime',\n 'TDRC': 'recordingTime',\n 'TDRL': 'releaseTime',\n 'TDTG': 'taggingTime',\n 'TSSE': 'encodedWith',\n 'TSOA': 'albumSortOrder',\n 'TSOP': 'performerSortOrder',\n 'TSOT': 'titleSortOrder',\n \n // User defined text information\n 'TXXX': 'userText',\n \n // Unsynchronised lyrics/text transcription\n 'USLT': 'lyrics',\n\n // Attached Picture Frame\n 'APIC': 'coverArt',\n\n // Unique Identifier Frame\n 'UFID': 'uniqueIdentifier',\n\n // Music CD Identifier Frame\n 'MCDI': 'CDIdentifier',\n\n // Comment Frame\n 'COMM': 'comments',\n \n // URL link frames\n 'WCOM': 'commercialInformation',\n 'WCOP': 'copyrightInformation',\n 'WOAF': 'officialAudioFileWebpage',\n 'WOAR': 'officialArtistWebpage',\n 'WOAS': 'officialAudioSourceWebpage',\n 'WORS': 'officialInternetRadioStationHomepage',\n 'WPAY': 'payment',\n 'WPUB': 'officialPublisherWebpage',\n\n // User Defined URL Link Frame\n 'WXXX': 'url',\n\n 'PRIV': 'private',\n 'GEOB': 'generalEncapsulatedObject',\n 'PCNT': 'playCount',\n 'POPM': 'rating',\n 'AENC': 'audioEncryption',\n 'ETCO': 'eventTimingCodes',\n 'MLLT': 'MPEGLocationLookupTable',\n 'SYTC': 'synchronisedTempoCodes',\n 'SYLT': 'synchronisedLyrics',\n 'RVA2': 'volumeAdjustment',\n 'EQU2': 'equalization',\n 'RVRB': 'reverb',\n 'RBUF': 'recommendedBufferSize',\n 'LINK': 'link',\n 'POSS': 'positionSynchronisation',\n 'USER': 'termsOfUse',\n 'OWNE': 'ownership',\n 'COMR': 'commercial',\n 'ENCR': 'encryption',\n 'GRID': 'groupIdentifier',\n 'SIGN': 'signature',\n 'SEEK': 'seek',\n 'ASPI': 'audioSeekPointIndex',\n\n // Deprecated ID3 v2.3 frames\n 'TDAT': 'date',\n 'TIME': 'time',\n 'TORY': 'originalReleaseYear',\n 'TRDA': 'recordingDates',\n 'TSIZ': 'size',\n 'TYER': 'year',\n 'IPLS': 'involvedPeopleList',\n 'RVAD': 'volumeAdjustment',\n 'EQUA': 'equalization',\n \n // Non-standard iTunes frames\n 'TCMP': 'compilation',\n 'TSO2': 'albumArtistSortOrder',\n 'TSOC': 'composerSortOrder'\n }\n});\n\n// ID3 v2.2 support\nexports.ID3v22Stream = exports.ID3v23Stream.extend({ \n readHeader: function() {\n var id = this.stream.readString(3);\n \n if (this.frameReplacements[id] && !this.frameTypes[id])\n this.frameTypes[id] = this.frameReplacements[id];\n \n return {\n identifier: this.replacements[id] || id,\n length: this.stream.readUInt24()\n };\n },\n \n // map 3 char ID3 v2.2 names to 4 char ID3 v2.3/4 names\n replacements: {\n 'UFI': 'UFID',\n 'TT1': 'TIT1',\n 'TT2': 'TIT2',\n 'TT3': 'TIT3',\n 'TP1': 'TPE1',\n 'TP2': 'TPE2',\n 'TP3': 'TPE3',\n 'TP4': 'TPE4',\n 'TCM': 'TCOM',\n 'TXT': 'TEXT',\n 'TLA': 'TLAN',\n 'TCO': 'TCON',\n 'TAL': 'TALB',\n 'TPA': 'TPOS',\n 'TRK': 'TRCK',\n 'TRC': 'TSRC',\n 'TYE': 'TYER',\n 'TDA': 'TDAT',\n 'TIM': 'TIME',\n 'TRD': 'TRDA',\n 'TMT': 'TMED',\n 'TFT': 'TFLT',\n 'TBP': 'TBPM',\n 'TCR': 'TCOP',\n 'TPB': 'TPUB',\n 'TEN': 'TENC',\n 'TSS': 'TSSE',\n 'TOF': 'TOFN',\n 'TLE': 'TLEN',\n 'TSI': 'TSIZ',\n 'TDY': 'TDLY',\n 'TKE': 'TKEY',\n 'TOT': 'TOAL',\n 'TOA': 'TOPE',\n 'TOL': 'TOLY',\n 'TOR': 'TORY',\n 'TXX': 'TXXX',\n \n 'WAF': 'WOAF',\n 'WAR': 'WOAR',\n 'WAS': 'WOAS',\n 'WCM': 'WCOM',\n 'WCP': 'WCOP',\n 'WPB': 'WPUB',\n 'WXX': 'WXXX',\n \n 'IPL': 'IPLS',\n 'MCI': 'MCDI',\n 'ETC': 'ETCO',\n 'MLL': 'MLLT',\n 'STC': 'SYTC',\n 'ULT': 'USLT',\n 'SLT': 'SYLT',\n 'COM': 'COMM',\n 'RVA': 'RVAD',\n 'EQU': 'EQUA',\n 'REV': 'RVRB',\n \n 'GEO': 'GEOB',\n 'CNT': 'PCNT',\n 'POP': 'POPM',\n 'BUF': 'RBUF',\n 'CRA': 'AENC',\n 'LNK': 'LINK',\n \n // iTunes stuff\n 'TST': 'TSOT',\n 'TSP': 'TSOP',\n 'TSA': 'TSOA',\n 'TCP': 'TCMP',\n 'TS2': 'TSO2',\n 'TSC': 'TSOC'\n },\n \n // replacements for ID3 v2.3/4 frames\n frameReplacements: {\n PIC: {\n encoding: 1,\n format: 'int24',\n type: 'int8',\n description: 'string',\n data: 'binary'\n },\n \n CRM: {\n owner: 'latin1',\n description: 'latin1',\n data: 'binary'\n }\n }\n});", 33 "function IMDCT() {\n this.tmp_imdct36 = new Float64Array(18);\n this.tmp_dctIV = new Float64Array(18);\n this.tmp_sdctII = new Float64Array(9);\n}\n\n// perform X[18]->x[36] IMDCT using Szu-Wei Lee's fast algorithm\nIMDCT.prototype.imdct36 = function(x, y) {\n var tmp = this.tmp_imdct36;\n\n /* DCT-IV */\n this.dctIV(x, tmp);\n\n // convert 18-point DCT-IV to 36-point IMDCT\n for (var i = 0; i < 9; ++i) {\n y[i] = tmp[9 + i];\n }\n for (var i = 9; i < 27; ++i) {\n y[i] = -tmp[36 - (9 + i) - 1];\n }\n for (var i = 27; i < 36; ++i) {\n y[i] = -tmp[i - 27];\n }\n};\n\nvar dctIV_scale = [];\nfor(i = 0; i < 18; i++) {\n dctIV_scale[i] = 2 * Math.cos(Math.PI * (2 * i + 1) / (4 * 18));\n}\n\nIMDCT.prototype.dctIV = function(y, X) {\n var tmp = this.tmp_dctIV;\n\n // scaling\n for (var i = 0; i < 18; ++i) {\n tmp[i] = y[i] * dctIV_scale[i];\n }\n\n // SDCT-II\n this.sdctII(tmp, X);\n\n // scale reduction and output accumulation\n X[0] /= 2;\n for (var i = 1; i < 18; ++i) {\n X[i] = X[i] / 2 - X[i - 1];\n }\n};\n\nvar sdctII_scale = [];\nfor (var i = 0; i < 9; ++i) {\n sdctII_scale[i] = 2 * Math.cos(Math.PI * (2 * i + 1) / (2 * 18));\n}\n\nIMDCT.prototype.sdctII = function(x, X) {\n // divide the 18-point SDCT-II into two 9-point SDCT-IIs\n var tmp = this.tmp_sdctII;\n\n // even input butterfly\n for (var i = 0; i < 9; ++i) {\n tmp[i] = x[i] + x[18 - i - 1];\n }\n\n fastsdct(tmp, X, 0);\n\n // odd input butterfly and scaling\n for (var i = 0; i < 9; ++i) {\n tmp[i] = (x[i] - x[18 - i - 1]) * sdctII_scale[i];\n }\n\n fastsdct(tmp, X, 1);\n\n // output accumulation\n for (var i = 3; i < 18; i += 2) {\n X[i] -= X[i - 2];\n }\n};\n\nvar c0 = 2 * Math.cos( 1 * Math.PI / 18);\nvar c1 = 2 * Math.cos( 3 * Math.PI / 18);\nvar c2 = 2 * Math.cos( 4 * Math.PI / 18);\nvar c3 = 2 * Math.cos( 5 * Math.PI / 18);\nvar c4 = 2 * Math.cos( 7 * Math.PI / 18);\nvar c5 = 2 * Math.cos( 8 * Math.PI / 18);\nvar c6 = 2 * Math.cos(16 * Math.PI / 18);\n\nfunction fastsdct(x, y, offset) {\n var a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12;\n var a13, a14, a15, a16, a17, a18, a19, a20, a21, a22, a23, a24, a25;\n var m0, m1, m2, m3, m4, m5, m6, m7;\n\n a0 = x[3] + x[5];\n a1 = x[3] - x[5];\n a2 = x[6] + x[2];\n a3 = x[6] - x[2];\n a4 = x[1] + x[7];\n a5 = x[1] - x[7];\n a6 = x[8] + x[0];\n a7 = x[8] - x[0];\n\n a8 = a0 + a2;\n a9 = a0 - a2;\n a10 = a0 - a6;\n a11 = a2 - a6;\n a12 = a8 + a6;\n a13 = a1 - a3;\n a14 = a13 + a7;\n a15 = a3 + a7;\n a16 = a1 - a7;\n a17 = a1 + a3;\n\n m0 = a17 * -c3;\n m1 = a16 * -c0;\n m2 = a15 * -c4;\n m3 = a14 * -c1;\n m4 = a5 * -c1;\n m5 = a11 * -c6;\n m6 = a10 * -c5;\n m7 = a9 * -c2;\n\n a18 = x[4] + a4;\n a19 = 2 * x[4] - a4;\n a20 = a19 + m5;\n a21 = a19 - m5;\n a22 = a19 + m6;\n a23 = m4 + m2;\n a24 = m4 - m2;\n a25 = m4 + m1;\n\n // output to every other slot for convenience\n y[offset + 0] = a18 + a12;\n y[offset + 2] = m0 - a25;\n y[offset + 4] = m7 - a20;\n y[offset + 6] = m3;\n y[offset + 8] = a21 - m6;\n y[offset + 10] = a24 - m1;\n y[offset + 12] = a12 - 2 * a18;\n y[offset + 14] = a23 + m0;\n y[offset + 16] = a22 + m7;\n}\n\nIMDCT.S = [\n /* 0 */ [ 0.608761429,\n -0.923879533,\n -0.130526192,\n 0.991444861,\n -0.382683432,\n -0.793353340 ],\n\n /* 6 */ [ -0.793353340,\n 0.382683432,\n 0.991444861,\n 0.130526192,\n -0.923879533,\n -0.608761429 ],\n\n /* 1 */ [ 0.382683432,\n -0.923879533,\n 0.923879533,\n -0.382683432,\n -0.382683432,\n 0.923879533 ],\n\n /* 7 */ [ -0.923879533,\n -0.382683432,\n 0.382683432,\n 0.923879533,\n 0.923879533,\n 0.382683432 ],\n\n /* 2 */ [ 0.130526192,\n -0.382683432,\n 0.608761429,\n -0.793353340,\n 0.923879533,\n -0.991444861 ],\n\n /* 8 */ [ -0.991444861,\n -0.923879533,\n -0.793353340,\n -0.608761429,\n -0.382683432,\n -0.130526192 ]\n];\n\nmodule.exports = IMDCT;\n", 34 "var tables = require('./tables');\nvar MP3FrameHeader = require('./header');\nvar MP3Frame = require('./frame');\nvar utils = require('./utils');\n\nfunction Layer1() { \n this.allocation = utils.makeArray([2, 32], Uint8Array);\n this.scalefactor = utils.makeArray([2, 32], Uint8Array);\n}\n\nMP3Frame.layers[1] = Layer1;\n\n// linear scaling table\nconst LINEAR_TABLE = new Float32Array([\n 1.33333333333333, 1.14285714285714, 1.06666666666667,\n 1.03225806451613, 1.01587301587302, 1.00787401574803,\n 1.00392156862745, 1.00195694716243, 1.00097751710655,\n 1.00048851978505, 1.00024420024420, 1.00012208521548,\n 1.00006103888177, 1.00003051850948\n]);\n\nLayer1.prototype.decode = function(stream, frame) {\n var header = frame.header;\n var nch = header.nchannels();\n \n var bound = 32;\n if (header.mode === MP3FrameHeader.MODE.JOINT_STEREO) {\n header.flags |= MP3FrameHeader.FLAGS.I_STEREO;\n bound = 4 + header.mode_extension * 4;\n }\n \n if (header.flags & MP3FrameHeader.FLAGS.PROTECTION) {\n // TODO: crc check\n }\n \n // decode bit allocations\n var allocation = this.allocation;\n for (var sb = 0; sb < bound; sb++) {\n for (var ch = 0; ch < nch; ch++) {\n var nb = stream.read(4);\n if (nb === 15)\n throw new Error(\"forbidden bit allocation value\");\n \n allocation[ch][sb] = nb ? nb + 1 : 0;\n }\n }\n \n for (var sb = bound; sb < 32; sb++) {\n var nb = stream.read(4);\n if (nb === 15)\n throw new Error(\"forbidden bit allocation value\");\n \n allocation[0][sb] =\n allocation[1][sb] = nb ? nb + 1 : 0;\n }\n \n // decode scalefactors\n var scalefactor = this.scalefactor;\n for (var sb = 0; sb < 32; sb++) {\n for (var ch = 0; ch < nch; ch++) {\n if (allocation[ch][sb]) {\n scalefactor[ch][sb] = stream.read(6);\n \n \t/*\n \t * Scalefactor index 63 does not appear in Table B.1 of\n \t * ISO/IEC 11172-3. Nonetheless, other implementations accept it,\n * so we do as well \n */\n }\n }\n }\n \n // decode samples\n for (var s = 0; s < 12; s++) {\n for (var sb = 0; sb < bound; sb++) {\n for (var ch = 0; ch < nch; ch++) {\n var nb = allocation[ch][sb];\n frame.sbsample[ch][s][sb] = nb ? this.sample(stream, nb) * tables.SF_TABLE[scalefactor[ch][sb]] : 0;\n }\n }\n \n for (var sb = bound; sb < 32; sb++) {\n var nb = allocation[0][sb];\n if (nb) {\n var sample = this.sample(stream, nb);\n \n for (var ch = 0; ch < nch; ch++) {\n frame.sbsample[ch][s][sb] = sample * tables.SF_TABLE[scalefactor[ch][sb]];\n }\n } else {\n for (var ch = 0; ch < nch; ch++) {\n frame.sbsample[ch][s][sb] = 0;\n }\n }\n }\n }\n};\n\nLayer1.prototype.sample = function(stream, nb) {\n var sample = stream.read(nb);\n \n // invert most significant bit, and form a 2's complement sample\n sample ^= 1 << (nb - 1);\n sample |= -(sample & (1 << (nb - 1)));\n sample /= (1 << (nb - 1));\n \n // requantize the sample\n // s'' = (2^nb / (2^nb - 1)) * (s''' + 2^(-nb + 1))\n sample += 1 >> (nb - 1);\n return sample * LINEAR_TABLE[nb - 2];\n};\n\nmodule.exports = Layer1;\n", 35 "var tables = require('./tables');\nvar MP3FrameHeader = require('./header');\nvar MP3Frame = require('./frame');\nvar utils = require('./utils');\n\nfunction Layer2() { \n this.samples = new Float64Array(3);\n this.allocation = utils.makeArray([2, 32], Uint8Array);\n this.scfsi = utils.makeArray([2, 32], Uint8Array);\n this.scalefactor = utils.makeArray([2, 32, 3], Uint8Array);\n}\n\nMP3Frame.layers[2] = Layer2;\n\n// possible quantization per subband table\nconst SBQUANT = [\n // ISO/IEC 11172-3 Table B.2a\n { sblimit: 27, offsets:\n [ 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 0, 0, 0 ] },\n \n // ISO/IEC 11172-3 Table B.2b\n { sblimit: 30, offsets:\n [ 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 0, 0, 0, 0, 0, 0 ] },\n \n // ISO/IEC 11172-3 Table B.2c\n { sblimit: 8, offsets:\n [ 5, 5, 2, 2, 2, 2, 2, 2 ] },\n \n // ISO/IEC 11172-3 Table B.2d\n { sblimit: 12, offsets:\n [ 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 ] },\n \n // ISO/IEC 13818-3 Table B.1\n { sblimit: 30, offsets:\n [ 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ] }\n];\n\n// bit allocation table\nconst BITALLOC = [\n { nbal: 2, offset: 0 }, // 0\n { nbal: 2, offset: 3 }, // 1\n { nbal: 3, offset: 3 }, // 2\n { nbal: 3, offset: 1 }, // 3\n { nbal: 4, offset: 2 }, // 4\n { nbal: 4, offset: 3 }, // 5\n { nbal: 4, offset: 4 }, // 6\n { nbal: 4, offset: 5 } // 7\n];\n\n// offsets into quantization class table\nconst OFFSETS = [\n [ 0, 1, 16 ], // 0\n [ 0, 1, 2, 3, 4, 5, 16 ], // 1\n [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 ], // 2\n [ 0, 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 ], // 3\n [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 16 ], // 4\n [ 0, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 ] // 5\n];\n\n\n\n/*\n * These are the Layer II classes of quantization.\n * The table is derived from Table B.4 of ISO/IEC 11172-3.\n */\nconst QC_TABLE = [\n { nlevels: 3, group: 2, bits: 5, C: 1.33333333333, D: 0.50000000000 },\n { nlevels: 5, group: 3, bits: 7, C: 1.60000000000, D: 0.50000000000 },\n { nlevels: 7, group: 0, bits: 3, C: 1.14285714286, D: 0.25000000000 },\n { nlevels: 9, group: 4, bits: 10, C: 1.77777777777, D: 0.50000000000 },\n { nlevels: 15, group: 0, bits: 4, C: 1.06666666666, D: 0.12500000000 },\n { nlevels: 31, group: 0, bits: 5, C: 1.03225806452, D: 0.06250000000 },\n { nlevels: 63, group: 0, bits: 6, C: 1.01587301587, D: 0.03125000000 },\n { nlevels: 127, group: 0, bits: 7, C: 1.00787401575, D: 0.01562500000 },\n { nlevels: 255, group: 0, bits: 8, C: 1.00392156863, D: 0.00781250000 },\n { nlevels: 511, group: 0, bits: 9, C: 1.00195694716, D: 0.00390625000 },\n { nlevels: 1023, group: 0, bits: 10, C: 1.00097751711, D: 0.00195312500 },\n { nlevels: 2047, group: 0, bits: 11, C: 1.00048851979, D: 0.00097656250 },\n { nlevels: 4095, group: 0, bits: 12, C: 1.00024420024, D: 0.00048828125 },\n { nlevels: 8191, group: 0, bits: 13, C: 1.00012208522, D: 0.00024414063 },\n { nlevels: 16383, group: 0, bits: 14, C: 1.00006103888, D: 0.00012207031 },\n { nlevels: 32767, group: 0, bits: 15, C: 1.00003051851, D: 0.00006103516 },\n { nlevels: 65535, group: 0, bits: 16, C: 1.00001525902, D: 0.00003051758 }\n];\n\nLayer2.prototype.decode = function(stream, frame) {\n var header = frame.header;\n var nch = header.nchannels();\n var index;\n \n if (header.flags & MP3FrameHeader.FLAGS.LSF_EXT) {\n index = 4;\n } else if (header.flags & MP3FrameHeader.FLAGS.FREEFORMAT) {\n index = header.samplerate === 48000 ? 0 : 1;\n } else {\n var bitrate_per_channel = header.bitrate;\n \n if (nch === 2) {\n bitrate_per_channel /= 2;\n \n /*\n * ISO/IEC 11172-3 allows only single channel mode for 32, 48, 56, and\n * 80 kbps bitrates in Layer II, but some encoders ignore this\n * restriction, so we ignore it as well.\n */\n } else {\n /*\n \t * ISO/IEC 11172-3 does not allow single channel mode for 224, 256,\n \t * 320, or 384 kbps bitrates in Layer II.\n \t */\n if (bitrate_per_channel > 192000)\n throw new Error('bad bitrate/mode combination');\n }\n \n if (bitrate_per_channel <= 48000)\n index = header.samplerate === 32000 ? 3 : 2;\n else if (bitrate_per_channel <= 80000)\n index = 0;\n else\n index = header.samplerate === 48000 ? 0 : 1;\n }\n \n var sblimit = SBQUANT[index].sblimit;\n var offsets = SBQUANT[index].offsets;\n \n var bound = 32;\n if (header.mode === MP3FrameHeader.MODE.JOINT_STEREO) {\n header.flags |= MP3FrameHeader.FLAGS.I_STEREO;\n bound = 4 + header.mode_extension * 4;\n }\n \n if (bound > sblimit)\n bound = sblimit;\n \n // decode bit allocations\n var allocation = this.allocation;\n for (var sb = 0; sb < bound; sb++) {\n var nbal = BITALLOC[offsets[sb]].nbal;\n \n for (var ch = 0; ch < nch; ch++)\n allocation[ch][sb] = stream.read(nbal);\n }\n \n for (var sb = bound; sb < sblimit; sb++) {\n var nbal = BITALLOC[offsets[sb]].nbal;\n \n allocation[0][sb] =\n allocation[1][sb] = stream.read(nbal);\n }\n \n // decode scalefactor selection info\n var scfsi = this.scfsi;\n for (var sb = 0; sb < sblimit; sb++) {\n for (var ch = 0; ch < nch; ch++) {\n if (allocation[ch][sb])\n scfsi[ch][sb] = stream.read(2);\n }\n }\n \n if (header.flags & MP3FrameHeader.FLAGS.PROTECTION) {\n // TODO: crc check\n }\n \n // decode scalefactors\n var scalefactor = this.scalefactor;\n for (var sb = 0; sb < sblimit; sb++) {\n for (var ch = 0; ch < nch; ch++) {\n if (allocation[ch][sb]) {\n scalefactor[ch][sb][0] = stream.read(6);\n \n switch (scfsi[ch][sb]) {\n \t case 2:\n \t scalefactor[ch][sb][2] =\n scalefactor[ch][sb][1] = scalefactor[ch][sb][0];\n break;\n \n case 0:\n scalefactor[ch][sb][1] = stream.read(6);\n \t// fall through\n \t\n case 1:\n case 3:\n scalefactor[ch][sb][2] = stream.read(6);\n }\n \n if (scfsi[ch][sb] & 1)\n scalefactor[ch][sb][1] = scalefactor[ch][sb][scfsi[ch][sb] - 1];\n \n /*\n \t * Scalefactor index 63 does not appear in Table B.1 of\n \t * ISO/IEC 11172-3. Nonetheless, other implementations accept it,\n \t * so we do as well.\n \t */\n }\n }\n }\n \n // decode samples\n for (var gr = 0; gr < 12; gr++) {\n // normal\n for (var sb = 0; sb < bound; sb++) {\n for (var ch = 0; ch < nch; ch++) { \n if (index = allocation[ch][sb]) {\n index = OFFSETS[BITALLOC[offsets[sb]].offset][index - 1];\n this.decodeSamples(stream, QC_TABLE[index]);\n \n var scale = tables.SF_TABLE[scalefactor[ch][sb][gr >> 2]];\n for (var s = 0; s < 3; s++) {\n frame.sbsample[ch][3 * gr + s][sb] = this.samples[s] * scale;\n }\n } else {\n for (var s = 0; s < 3; s++) {\n frame.sbsample[ch][3 * gr + s][sb] = 0;\n }\n }\n }\n }\n \n // joint stereo\n for (var sb = bound; sb < sblimit; sb++) {\n if (index = allocation[0][sb]) {\n index = OFFSETS[BITALLOC[offsets[sb]].offset][index - 1];\n this.decodeSamples(stream, QC_TABLE[index]);\n \n for (var ch = 0; ch < nch; ch++) {\n var scale = tables.SF_TABLE[scalefactor[ch][sb][gr >> 2]];\n for (var s = 0; s < 3; s++) {\n frame.sbsample[ch][3 * gr + s][sb] = this.samples[s] * scale;\n }\n }\n } else {\n for (var ch = 0; ch < nch; ch++) {\n for (var s = 0; s < 3; s++) {\n frame.sbsample[ch][3 * gr + s][sb] = 0;\n }\n }\n }\n }\n \n // the rest\n for (var ch = 0; ch < nch; ch++) {\n for (var s = 0; s < 3; s++) {\n for (var sb = sblimit; sb < 32; sb++) {\n frame.sbsample[ch][3 * gr + s][sb] = 0;\n }\n }\n }\n }\n};\n\nLayer2.prototype.decodeSamples = function(stream, quantclass) {\n var sample = this.samples;\n var nb = quantclass.group;\n \n if (nb) {\n // degrouping\n var c = stream.read(quantclass.bits);\n var nlevels = quantclass.nlevels;\n \n for (var s = 0; s < 3; s++) {\n sample[s] = c % nlevels;\n c = c / nlevels | 0;\n }\n } else {\n nb = quantclass.bits;\n for (var s = 0; s < 3; s++) {\n sample[s] = stream.read(nb);\n }\n }\n \n for (var s = 0; s < 3; s++) {\n // invert most significant bit, and form a 2's complement sample\n var requantized = sample[s] ^ (1 << (nb - 1));\n requantized |= -(requantized & (1 << (nb - 1)));\n requantized /= (1 << (nb - 1));\n \n // requantize the sample\n sample[s] = (requantized + quantclass.D) * quantclass.C;\n }\n};\n\nmodule.exports = Layer2;\n", 36 "var AV = (window.AV);\nvar tables = require('./tables');\nvar MP3FrameHeader = require('./header');\nvar MP3Frame = require('./frame');\nvar huffman = require('./huffman');\nvar IMDCT = require('./imdct');\nvar utils = require('./utils');\n\nfunction MP3SideInfo() {\n this.main_data_begin = null;\n this.private_bits = null;\n this.gr = [new MP3Granule(), new MP3Granule()];\n this.scfsi = new Uint8Array(2);\n}\n\nfunction MP3Granule() {\n this.ch = [new MP3Channel(), new MP3Channel()];\n}\n\nfunction MP3Channel() {\n // from side info\n this.part2_3_length = null;\n this.big_values = null;\n this.global_gain = null;\n this.scalefac_compress = null;\n \n this.flags = null;\n this.block_type = null;\n this.table_select = new Uint8Array(3);\n this.subblock_gain = new Uint8Array(3);\n this.region0_count = null;\n this.region1_count = null;\n \n // from main_data\n this.scalefac = new Uint8Array(39);\n}\n\nfunction Layer3() {\n this.imdct = new IMDCT();\n this.si = new MP3SideInfo();\n \n // preallocate reusable typed arrays for performance\n this.xr = [new Float64Array(576), new Float64Array(576)];\n this._exponents = new Int32Array(39);\n this.reqcache = new Float64Array(16);\n this.modes = new Int16Array(39);\n this.output = new Float64Array(36);\n \n this.tmp = utils.makeArray([32, 3, 6]);\n this.tmp2 = new Float64Array(32 * 3 * 6);\n}\n\nMP3Frame.layers[3] = Layer3;\n\nLayer3.prototype.decode = function(stream, frame) {\n var header = frame.header;\n var next_md_begin = 0;\n var md_len = 0;\n \n var nch = header.nchannels();\n var si_len = (header.flags & MP3FrameHeader.FLAGS.LSF_EXT) ? (nch === 1 ? 9 : 17) : (nch === 1 ? 17 : 32);\n \n // check frame sanity\n if (stream.next_frame - stream.nextByte() < si_len) {\n stream.md_len = 0;\n throw new Error('Bad frame length');\n }\n \n // check CRC word\n if (header.flags & MP3FrameHeader.FLAGS.PROTECTION) {\n // TODO: crc check\n }\n \n // decode frame side information\n var sideInfo = this.sideInfo(stream, nch, header.flags & MP3FrameHeader.FLAGS.LSF_EXT); \n var si = sideInfo.si;\n var data_bitlen = sideInfo.data_bitlen;\n var priv_bitlen = sideInfo.priv_bitlen;\n \n header.flags |= priv_bitlen;\n header.private_bits |= si.private_bits;\n \n // find main_data of next frame\n var peek = stream.copy();\n peek.seek(stream.next_frame * 8);\n \n var nextHeader = peek.read(16); \n if ((nextHeader & 0xffe6) === 0xffe2) { // syncword | layer\n if ((nextHeader & 1) === 0) // protection bit\n peek.advance(16); // crc check\n \n peek.advance(16); // skip the rest of the header\n next_md_begin = peek.read((nextHeader & 8) ? 9 : 8);\n }\n \n // find main_data of this frame\n var frame_space = stream.next_frame - stream.nextByte();\n \n if (next_md_begin > si.main_data_begin + frame_space)\n next_md_begin = 0;\n \n var md_len = si.main_data_begin + frame_space - next_md_begin;\n var frame_used = 0;\n var ptr;\n \n if (si.main_data_begin === 0) {\n ptr = stream.stream;\n stream.md_len = 0;\n frame_used = md_len;\n } else {\n if (si.main_data_begin > stream.md_len) {\n throw new Error('bad main_data_begin pointer');\n } else {\n var old_md_len = stream.md_len;\n \n if (md_len > si.main_data_begin) {\n if (stream.md_len + md_len - si.main_data_begin > MP3FrameHeader.BUFFER_MDLEN) {\n throw new Error(\"Assertion failed: (stream.md_len + md_len - si.main_data_begin <= MAD_MP3FrameHeader.BUFFER_MDLEN)\");\n }\n \n frame_used = md_len - si.main_data_begin;\n this.memcpy(stream.main_data, stream.md_len, stream.stream.stream, stream.nextByte(), frame_used);\n stream.md_len += frame_used;\n }\n \n ptr = new AV.Bitstream(AV.Stream.fromBuffer(new AV.Buffer(stream.main_data)));\n ptr.advance((old_md_len - si.main_data_begin) * 8);\n }\n }\n \n var frame_free = frame_space - frame_used;\n \n // decode main_data\n this.decodeMainData(ptr, frame, si, nch);\n \n // preload main_data buffer with up to 511 bytes for next frame(s)\n if (frame_free >= next_md_begin) {\n this.memcpy(stream.main_data, 0, stream.stream.stream, stream.next_frame - next_md_begin, next_md_begin);\n stream.md_len = next_md_begin;\n } else {\n if (md_len < si.main_data_begin) {\n var extra = si.main_data_begin - md_len;\n if (extra + frame_free > next_md_begin)\n extra = next_md_begin - frame_free;\n\n if (extra < stream.md_len) {\n this.memcpy(stream.main_data, 0, stream.main_data, stream.md_len - extra, extra);\n stream.md_len = extra;\n }\n } else {\n stream.md_len = 0;\n }\n \n this.memcpy(stream.main_data, stream.md_len, stream.stream.stream, stream.next_frame - frame_free, frame_free);\n stream.md_len += frame_free;\n }\n};\n\nLayer3.prototype.memcpy = function(dst, dstOffset, pSrc, srcOffset, length) {\n var subarr;\n if (pSrc.subarray)\n subarr = pSrc.subarray(srcOffset, srcOffset + length);\n else\n subarr = pSrc.peekBuffer(srcOffset - pSrc.offset, length).data;\n\n // oh my, memcpy actually exists in JavaScript?\n dst.set(subarr, dstOffset);\n return dst;\n};\n\nLayer3.prototype.sideInfo = function(stream, nch, lsf) {\n var si = this.si;\n var data_bitlen = 0;\n var priv_bitlen = lsf ? ((nch === 1) ? 1 : 2) : ((nch === 1) ? 5 : 3);\n \n si.main_data_begin = stream.read(lsf ? 8 : 9);\n si.private_bits = stream.read(priv_bitlen);\n\n var ngr = 1;\n if (!lsf) {\n ngr = 2;\n for (var ch = 0; ch < nch; ++ch)\n si.scfsi[ch] = stream.read(4);\n }\n \n for (var gr = 0; gr < ngr; gr++) {\n var granule = si.gr[gr];\n \n for (var ch = 0; ch < nch; ch++) {\n var channel = granule.ch[ch];\n \n channel.part2_3_length = stream.read(12);\n channel.big_values = stream.read(9);\n channel.global_gain = stream.read(8);\n channel.scalefac_compress = stream.read(lsf ? 9 : 4);\n\n data_bitlen += channel.part2_3_length;\n\n if (channel.big_values > 288)\n throw new Error('bad big_values count');\n\n channel.flags = 0;\n\n // window_switching_flag\n if (stream.read(1)) {\n channel.block_type = stream.read(2);\n\n if (channel.block_type === 0)\n throw new Error('reserved block_type');\n\n if (!lsf && channel.block_type === 2 && si.scfsi[ch])\n throw new Error('bad scalefactor selection info');\n\n channel.region0_count = 7;\n channel.region1_count = 36;\n\n if (stream.read(1))\n channel.flags |= tables.MIXED_BLOCK_FLAG;\n else if (channel.block_type === 2)\n channel.region0_count = 8;\n\n for (var i = 0; i < 2; i++)\n channel.table_select[i] = stream.read(5);\n\n for (var i = 0; i < 3; i++)\n channel.subblock_gain[i] = stream.read(3);\n } else {\n channel.block_type = 0;\n\n for (var i = 0; i < 3; i++)\n channel.table_select[i] = stream.read(5);\n\n channel.region0_count = stream.read(4);\n channel.region1_count = stream.read(3);\n }\n\n // [preflag,] scalefac_scale, count1table_select\n channel.flags |= stream.read(lsf ? 2 : 3);\n }\n }\n \n return {\n si: si,\n data_bitlen: data_bitlen,\n priv_bitlen: priv_bitlen\n };\n};\n\nLayer3.prototype.decodeMainData = function(stream, frame, si, nch) {\n var header = frame.header;\n var sfreq = header.samplerate;\n\n if (header.flags & MP3FrameHeader.FLAGS.MPEG_2_5_EXT)\n sfreq *= 2;\n\n // 48000 => 0, 44100 => 1, 32000 => 2,\n // 24000 => 3, 22050 => 4, 16000 => 5\n var sfreqi = ((sfreq >> 7) & 0x000f) + ((sfreq >> 15) & 0x0001) - 8;\n\n if (header.flags & MP3FrameHeader.FLAGS.MPEG_2_5_EXT)\n sfreqi += 3;\n \n // scalefactors, Huffman decoding, requantization\n var ngr = (header.flags & MP3FrameHeader.FLAGS.LSF_EXT) ? 1 : 2;\n var xr = this.xr;\n \n for (var gr = 0; gr < ngr; ++gr) {\n var granule = si.gr[gr];\n var sfbwidth = [];\n var l = 0;\n \n for (var ch = 0; ch < nch; ++ch) {\n var channel = granule.ch[ch];\n var part2_length;\n \n sfbwidth[ch] = tables.SFBWIDTH_TABLE[sfreqi].l;\n if (channel.block_type === 2) {\n sfbwidth[ch] = (channel.flags & tables.MIXED_BLOCK_FLAG) ? tables.SFBWIDTH_TABLE[sfreqi].m : tables.SFBWIDTH_TABLE[sfreqi].s;\n }\n\n if (header.flags & MP3FrameHeader.FLAGS.LSF_EXT) {\n part2_length = this.scalefactors_lsf(stream, channel, ch === 0 ? 0 : si.gr[1].ch[1], header.mode_extension);\n } else {\n part2_length = this.scalefactors(stream, channel, si.gr[0].ch[ch], gr === 0 ? 0 : si.scfsi[ch]);\n }\n\n this.huffmanDecode(stream, xr[ch], channel, sfbwidth[ch], part2_length);\n }\n \n // joint stereo processing\n if (header.mode === MP3FrameHeader.MODE.JOINT_STEREO && header.mode_extension !== 0)\n this.stereo(xr, si.gr, gr, header, sfbwidth[0]);\n \n // reordering, alias reduction, IMDCT, overlap-add, frequency inversion\n for (var ch = 0; ch < nch; ch++) {\n var channel = granule.ch[ch];\n var sample = frame.sbsample[ch].slice(18 * gr);\n \n var sb, l = 0, i, sblimit;\n var output = this.output;\n \n if (channel.block_type === 2) {\n this.reorder(xr[ch], channel, sfbwidth[ch]);\n\n /*\n * According to ISO/IEC 11172-3, \"Alias reduction is not applied for\n * granules with block_type === 2 (short block).\" However, other\n * sources suggest alias reduction should indeed be performed on the\n * lower two subbands of mixed blocks. Most other implementations do\n * this, so by default we will too.\n */\n if (channel.flags & tables.MIXED_BLOCK_FLAG)\n this.aliasreduce(xr[ch], 36);\n } else {\n this.aliasreduce(xr[ch], 576);\n }\n \n // subbands 0-1\n if (channel.block_type !== 2 || (channel.flags & tables.MIXED_BLOCK_FLAG)) {\n var block_type = channel.block_type;\n if (channel.flags & tables.MIXED_BLOCK_FLAG)\n block_type = 0;\n\n // long blocks\n for (var sb = 0; sb < 2; ++sb, l += 18) {\n this.imdct_l(xr[ch].subarray(l, l + 18), output, block_type);\n this.overlap(output, frame.overlap[ch][sb], sample, sb);\n }\n } else {\n // short blocks\n for (var sb = 0; sb < 2; ++sb, l += 18) {\n this.imdct_s(xr[ch].subarray(l, l + 18), output);\n this.overlap(output, frame.overlap[ch][sb], sample, sb);\n }\n }\n \n this.freqinver(sample, 1);\n\n // (nonzero) subbands 2-31\n var i = 576;\n while (i > 36 && xr[ch][i - 1] === 0) {\n --i;\n }\n \n sblimit = 32 - (((576 - i) / 18) << 0);\n\n if (channel.block_type !== 2) {\n // long blocks\n for (var sb = 2; sb < sblimit; ++sb, l += 18) {\n this.imdct_l(xr[ch].subarray(l, l + 18), output, channel.block_type);\n this.overlap(output, frame.overlap[ch][sb], sample, sb);\n\n if (sb & 1)\n this.freqinver(sample, sb);\n }\n } else {\n // short blocks\n for (var sb = 2; sb < sblimit; ++sb, l += 18) {\n this.imdct_s(xr[ch].subarray(l, l + 18), output);\n this.overlap(output, frame.overlap[ch][sb], sample, sb);\n\n if (sb & 1)\n this.freqinver(sample, sb);\n }\n }\n \n // remaining (zero) subbands\n for (var sb = sblimit; sb < 32; ++sb) {\n this.overlap_z(frame.overlap[ch][sb], sample, sb);\n\n if (sb & 1)\n this.freqinver(sample, sb);\n }\n }\n }\n};\n\nLayer3.prototype.scalefactors = function(stream, channel, gr0ch, scfsi) {\n var start = stream.offset();\n var slen1 = tables.SFLEN_TABLE[channel.scalefac_compress].slen1;\n var slen2 = tables.SFLEN_TABLE[channel.scalefac_compress].slen2;\n var sfbi;\n \n if (channel.block_type === 2) {\n sfbi = 0;\n\n var nsfb = (channel.flags & tables.MIXED_BLOCK_FLAG) ? 8 + 3 * 3 : 6 * 3;\n while (nsfb--)\n channel.scalefac[sfbi++] = stream.read(slen1);\n\n nsfb = 6 * 3;\n while (nsfb--)\n channel.scalefac[sfbi++] = stream.read(slen2);\n\n nsfb = 1 * 3;\n while (nsfb--)\n channel.scalefac[sfbi++] = 0;\n } else {\n if (scfsi & 0x8) {\n for (var sfbi = 0; sfbi < 6; ++sfbi)\n channel.scalefac[sfbi] = gr0ch.scalefac[sfbi];\n } else {\n for (var sfbi = 0; sfbi < 6; ++sfbi)\n channel.scalefac[sfbi] = stream.read(slen1);\n }\n\n if (scfsi & 0x4) {\n for (var sfbi = 6; sfbi < 11; ++sfbi)\n channel.scalefac[sfbi] = gr0ch.scalefac[sfbi];\n } else {\n for (var sfbi = 6; sfbi < 11; ++sfbi)\n channel.scalefac[sfbi] = stream.read(slen1);\n }\n\n if (scfsi & 0x2) {\n for (var sfbi = 11; sfbi < 16; ++sfbi)\n channel.scalefac[sfbi] = gr0ch.scalefac[sfbi];\n } else {\n for (var sfbi = 11; sfbi < 16; ++sfbi)\n channel.scalefac[sfbi] = stream.read(slen2);\n }\n\n if (scfsi & 0x1) {\n for (var sfbi = 16; sfbi < 21; ++sfbi)\n channel.scalefac[sfbi] = gr0ch.scalefac[sfbi];\n } else {\n for (var sfbi = 16; sfbi < 21; ++sfbi)\n channel.scalefac[sfbi] = stream.read(slen2);\n }\n\n channel.scalefac[21] = 0;\n }\n \n return stream.offset() - start;\n};\n\nLayer3.prototype.scalefactors_lsf = function(stream, channel, gr1ch, mode_extension) {\n var start = stream.offset();\n var scalefac_compress = channel.scalefac_compress;\n var index = channel.block_type === 2 ? (channel.flags & tables.MIXED_BLOCK_FLAG ? 2 : 1) : 0;\n var slen = new Int32Array(4);\n var nsfb;\n \n if (!((mode_extension & tables.I_STEREO) && gr1ch)) {\n if (scalefac_compress < 400) {\n slen[0] = (scalefac_compress >>> 4) / 5;\n slen[1] = (scalefac_compress >>> 4) % 5;\n slen[2] = (scalefac_compress % 16) >>> 2;\n slen[3] = scalefac_compress % 4;\n \n nsfb = tables.NSFB_TABLE[0][index];\n } else if (scalefac_compress < 500) {\n scalefac_compress -= 400;\n\n slen[0] = (scalefac_compress >>> 2) / 5;\n slen[1] = (scalefac_compress >>> 2) % 5;\n slen[2] = scalefac_compress % 4;\n slen[3] = 0;\n\n nsfb = tables.NSFB_TABLE[1][index];\n } else {\n scalefac_compress -= 500;\n\n slen[0] = scalefac_compress / 3;\n slen[1] = scalefac_compress % 3;\n slen[2] = 0;\n slen[3] = 0;\n\n channel.flags |= tables.PREFLAG;\n nsfb = tables.NSFB_TABLE[2][index];\n }\n \n var n = 0;\n for (var part = 0; part < 4; part++) {\n for (var i = 0; i < nsfb[part]; i++) {\n channel.scalefac[n++] = stream.read(slen[part]);\n }\n }\n \n while (n < 39) {\n channel.scalefac[n++] = 0;\n }\n } else { // (mode_extension & tables.I_STEREO) && gr1ch (i.e. ch == 1)\n scalefac_compress >>>= 1;\n \n if (scalefac_compress < 180) {\n slen[0] = scalefac_compress / 36;\n slen[1] = (scalefac_compress % 36) / 6;\n slen[2] = (scalefac_compress % 36) % 6;\n slen[3] = 0;\n\n nsfb = tables.NSFB_TABLE[3][index];\n } else if (scalefac_compress < 244) {\n scalefac_compress -= 180;\n\n slen[0] = (scalefac_compress % 64) >>> 4;\n slen[1] = (scalefac_compress % 16) >>> 2;\n slen[2] = scalefac_compress % 4;\n slen[3] = 0;\n\n nsfb = tables.NSFB_TABLE[4][index];\n } else {\n scalefac_compress -= 244;\n\n slen[0] = scalefac_compress / 3;\n slen[1] = scalefac_compress % 3;\n slen[2] = 0;\n slen[3] = 0;\n\n nsfb = tables.NSFB_TABLE[5][index];\n }\n \n var n = 0;\n for (var part = 0; part < 4; ++part) {\n var max = (1 << slen[part]) - 1;\n for (var i = 0; i < nsfb[part]; ++i) {\n var is_pos = stream.read(slen[part]);\n\n channel.scalefac[n] = is_pos;\n gr1ch.scalefac[n++] = is_pos === max ? 1 : 0;\n }\n }\n \n while (n < 39) {\n channel.scalefac[n] = 0;\n gr1ch.scalefac[n++] = 0; // apparently not illegal\n }\n }\n \n return stream.offset() - start;\n};\n\nLayer3.prototype.huffmanDecode = function(stream, xr, channel, sfbwidth, part2_length) {\n var exponents = this._exponents;\n var sfbwidthptr = 0;\n \n var bits_left = channel.part2_3_length - part2_length; \n if (bits_left < 0)\n throw new Error('bad audio data length');\n \n this.exponents(channel, sfbwidth, exponents);\n \n var peek = stream.copy();\n stream.advance(bits_left);\n \n /* align bit reads to byte boundaries */\n var cachesz = 8 - peek.bitPosition;\n cachesz += ((32 - 1 - 24) + (24 - cachesz)) & ~7;\n \n var bitcache = peek.read(cachesz);\n bits_left -= cachesz;\n\n var xrptr = 0;\n \n // big_values\n var region = 0;\n var reqcache = this.reqcache;\n \n var sfbound = xrptr + sfbwidth[sfbwidthptr++];\n var rcount = channel.region0_count + 1;\n \n var entry = huffman.huff_pair_table[channel.table_select[region]];\n var table = entry.table;\n var linbits = entry.linbits;\n var startbits = entry.startbits;\n \n if (typeof table === 'undefined')\n throw new Error('bad Huffman table select');\n \n var expptr = 0;\n var exp = exponents[expptr++];\n var reqhits = 0;\n var big_values = channel.big_values;\n \n while (big_values-- && cachesz + bits_left > 0) {\n if (xrptr === sfbound) {\n sfbound += sfbwidth[sfbwidthptr++];\n\n // change table if region boundary\n if (--rcount === 0) {\n if (region === 0)\n rcount = channel.region1_count + 1;\n else\n rcount = 0; // all remaining\n\n entry = huffman.huff_pair_table[channel.table_select[++region]];\n table = entry.table;\n linbits = entry.linbits;\n startbits = entry.startbits;\n\n if (typeof table === 'undefined')\n throw new Error('bad Huffman table select');\n }\n\n if (exp !== exponents[expptr]) {\n exp = exponents[expptr];\n reqhits = 0;\n }\n\n ++expptr;\n }\n \n if (cachesz < 21) {\n var bits = ((32 - 1 - 21) + (21 - cachesz)) & ~7;\n bitcache = (bitcache << bits) | peek.read(bits);\n cachesz += bits;\n bits_left -= bits;\n }\n \n var clumpsz = startbits;\n var pair = table[ (((bitcache) >> ((cachesz) - (clumpsz))) & ((1 << (clumpsz)) - 1))];\n \n while (!pair.final) {\n cachesz -= clumpsz;\n clumpsz = pair.ptr.bits;\n pair = table[pair.ptr.offset + (((bitcache) >> ((cachesz) - (clumpsz))) & ((1 << (clumpsz)) - 1))];\n }\n \n cachesz -= pair.value.hlen;\n \n if (linbits) {\n var value = pair.value.x;\n var x_final = false;\n \n switch (value) {\n case 0:\n xr[xrptr] = 0;\n break;\n\n case 15:\n if (cachesz < linbits + 2) {\n bitcache = (bitcache << 16) | peek.read(16);\n cachesz += 16;\n bits_left -= 16;\n }\n\n value += (((bitcache) >> ((cachesz) - (linbits))) & ((1 << (linbits)) - 1));\n cachesz -= linbits;\n\n requantized = this.requantize(value, exp);\n x_final = true; // simulating goto, yay\n break;\n\n default:\n if (reqhits & (1 << value)) {\n requantized = reqcache[value];\n } else {\n reqhits |= (1 << value);\n requantized = reqcache[value] = this.requantize(value, exp);\n }\n \n x_final = true;\n }\n \n if(x_final) {\n xr[xrptr] = ((bitcache) & (1 << ((cachesz--) - 1))) ? -requantized : requantized;\n }\n \n value = pair.value.y;\n var y_final = false;\n \n switch (value) {\n case 0:\n xr[xrptr + 1] = 0;\n break;\n\n case 15:\n if (cachesz < linbits + 1) {\n bitcache = (bitcache << 16) | peek.read(16);\n cachesz += 16;\n bits_left -= 16;\n }\n\n value += (((bitcache) >> ((cachesz) - (linbits))) & ((1 << (linbits)) - 1));\n cachesz -= linbits;\n\n requantized = this.requantize(value, exp);\n y_final = true;\n break; // simulating goto, yayzor\n\n default:\n if (reqhits & (1 << value)) {\n requantized = reqcache[value];\n } else {\n reqhits |= (1 << value);\n reqcache[value] = this.requantize(value, exp);\n requantized = reqcache[value];\n }\n \n y_final = true;\n }\n \n if(y_final) {\n xr[xrptr + 1] = ((bitcache) & (1 << ((cachesz--) - 1))) ? -requantized : requantized;\n }\n \n } else {\n var value = pair.value.x;\n\n if (value === 0) {\n xr[xrptr] = 0;\n } else {\n if (reqhits & (1 << value))\n requantized = reqcache[value];\n else {\n reqhits |= (1 << value);\n requantized = reqcache[value] = this.requantize(value, exp);\n }\n\n xr[xrptr] = ((bitcache) & (1 << ((cachesz--) - 1))) ? -requantized : requantized;\n }\n\n value = pair.value.y;\n\n if (value === 0) {\n xr[xrptr + 1] = 0;\n } else {\n if (reqhits & (1 << value))\n requantized = reqcache[value];\n else {\n reqhits |= (1 << value);\n requantized = reqcache[value] = this.requantize(value, exp);\n }\n\n xr[xrptr + 1] = ((bitcache) & (1 << ((cachesz--) - 1))) ? -requantized : requantized;\n }\n }\n\n xrptr += 2;\n }\n \n if (cachesz + bits_left < 0)\n throw new Error('Huffman data overrun');\n \n // count1 \n var table = huffman.huff_quad_table[channel.flags & tables.COUNT1TABLE_SELECT];\n var requantized = this.requantize(1, exp);\n \n while (cachesz + bits_left > 0 && xrptr <= 572) {\n if (cachesz < 10) {\n bitcache = (bitcache << 16) | peek.read(16);\n cachesz += 16;\n bits_left -= 16;\n }\n \n var quad = table[(((bitcache) >> ((cachesz) - (4))) & ((1 << (4)) - 1))];\n \n // quad tables guaranteed to have at most one extra lookup\n if (!quad.final) {\n cachesz -= 4;\n quad = table[quad.ptr.offset + (((bitcache) >> ((cachesz) - (quad.ptr.bits))) & ((1 << (quad.ptr.bits)) - 1))];\n }\n \n cachesz -= quad.value.hlen;\n\n if (xrptr === sfbound) {\n sfbound += sfbwidth[sfbwidthptr++];\n\n if (exp !== exponents[expptr]) {\n exp = exponents[expptr];\n requantized = this.requantize(1, exp);\n }\n\n ++expptr;\n }\n \n // v (0..1)\n xr[xrptr] = quad.value.v ? (((bitcache) & (1 << ((cachesz--) - 1))) ? -requantized : requantized) : 0;\n\n // w (0..1)\n xr[xrptr + 1] = quad.value.w ? (((bitcache) & (1 << ((cachesz--) - 1))) ? -requantized : requantized) : 0;\n\n xrptr += 2;\n if (xrptr === sfbound) {\n sfbound += sfbwidth[sfbwidthptr++];\n\n if (exp !== exponents[expptr]) {\n exp = exponents[expptr];\n requantized = this.requantize(1, exp);\n }\n\n ++expptr;\n }\n \n // x (0..1)\n xr[xrptr] = quad.value.x ? (((bitcache) & (1 << ((cachesz--) - 1))) ? -requantized : requantized) : 0;\n\n // y (0..1)\n xr[xrptr + 1] = quad.value.y ? (((bitcache) & (1 << ((cachesz--) - 1))) ? -requantized : requantized) : 0;\n\n xrptr += 2;\n \n if (cachesz + bits_left < 0) {\n // technically the bitstream is misformatted, but apparently\n // some encoders are just a bit sloppy with stuffing bits\n xrptr -= 4;\n }\n }\n \n if (-bits_left > MP3FrameHeader.BUFFER_GUARD * 8) {\n throw new Error(\"assertion failed: (-bits_left <= MP3FrameHeader.BUFFER_GUARD * CHAR_BIT)\");\n }\n \n // rzero\n while (xrptr < 576) {\n xr[xrptr] = 0;\n xr[xrptr + 1] = 0;\n xrptr += 2;\n }\n};\n\nLayer3.prototype.requantize = function(value, exp) {\n // usual (x >> 0) tricks to make sure frac and exp stay integers\n var frac = (exp % 4) >> 0; // assumes sign(frac) === sign(exp)\n exp = (exp / 4) >> 0;\n\n var requantized = Math.pow(value, 4.0 / 3.0);\n requantized *= Math.pow(2.0, (exp / 4.0));\n \n if (frac) {\n requantized *= Math.pow(2.0, (frac / 4.0));\n }\n \n if (exp < 0) {\n requantized /= Math.pow(2.0, -exp * (3.0 / 4.0));\n }\n\n return requantized;\n};\n\nLayer3.prototype.exponents = function(channel, sfbwidth, exponents) {\n var gain = channel.global_gain - 210;\n var scalefac_multiplier = (channel.flags & tables.SCALEFAC_SCALE) ? 2 : 1;\n \n if (channel.block_type === 2) {\n var sfbi = 0, l = 0;\n \n if (channel.flags & tables.MIXED_BLOCK_FLAG) {\n var premask = (channel.flags & tables.PREFLAG) ? ~0 : 0;\n \n // long block subbands 0-1\n while (l < 36) {\n exponents[sfbi] = gain - ((channel.scalefac[sfbi] + (tables.PRETAB[sfbi] & premask)) << scalefac_multiplier);\n l += sfbwidth[sfbi++];\n }\n }\n \n // this is probably wrong for 8000 Hz short/mixed blocks\n var gain0 = gain - 8 * channel.subblock_gain[0];\n var gain1 = gain - 8 * channel.subblock_gain[1];\n var gain2 = gain - 8 * channel.subblock_gain[2];\n \n while (l < 576) {\n exponents[sfbi + 0] = gain0 - (channel.scalefac[sfbi + 0] << scalefac_multiplier);\n exponents[sfbi + 1] = gain1 - (channel.scalefac[sfbi + 1] << scalefac_multiplier);\n exponents[sfbi + 2] = gain2 - (channel.scalefac[sfbi + 2] << scalefac_multiplier);\n \n l += 3 * sfbwidth[sfbi];\n sfbi += 3;\n }\n } else {\n if (channel.flags & tables.PREFLAG) {\n for (var sfbi = 0; sfbi < 22; sfbi++) {\n exponents[sfbi] = gain - ((channel.scalefac[sfbi] + tables.PRETAB[sfbi]) << scalefac_multiplier);\n }\n } else {\n for (var sfbi = 0; sfbi < 22; sfbi++) {\n exponents[sfbi] = gain - (channel.scalefac[sfbi] << scalefac_multiplier);\n }\n }\n }\n};\n\nLayer3.prototype.stereo = function(xr, granules, gr, header, sfbwidth) {\n var granule = granules[gr];\n var modes = this.modes;\n var sfbi, l, n, i;\n \n if (granule.ch[0].block_type !== granule.ch[1].block_type || (granule.ch[0].flags & tables.MIXED_BLOCK_FLAG) !== (granule.ch[1].flags & tables.MIXED_BLOCK_FLAG))\n throw new Error('incompatible stereo block_type');\n \n for (var i = 0; i < 39; i++)\n modes[i] = header.mode_extension;\n \n // intensity stereo\n if (header.mode_extension & tables.I_STEREO) {\n var right_ch = granule.ch[1];\n var right_xr = xr[1];\n \n header.flags |= MP3FrameHeader.FLAGS.tables.I_STEREO;\n \n // first determine which scalefactor bands are to be processed\n if (right_ch.block_type === 2) {\n var lower, start, max, bound = new Uint32Array(3), w;\n\n lower = start = max = bound[0] = bound[1] = bound[2] = 0;\n sfbi = l = 0;\n \n if (right_ch.flags & tables.MIXED_BLOCK_FLAG) {\n while (l < 36) {\n n = sfbwidth[sfbi++];\n\n for (var i = 0; i < n; ++i) {\n if (right_xr[i]) {\n lower = sfbi;\n break;\n }\n }\n\n right_xr += n;\n l += n;\n }\n\n start = sfbi;\n }\n \n var w = 0;\n while (l < 576) {\n n = sfbwidth[sfbi++];\n\n for (i = 0; i < n; ++i) {\n if (right_xr[i]) {\n max = bound[w] = sfbi;\n break;\n }\n }\n\n right_xr += n;\n l += n;\n w = (w + 1) % 3;\n }\n \n if (max)\n lower = start;\n\n // long blocks\n for (i = 0; i < lower; ++i)\n modes[i] = header.mode_extension & ~tables.I_STEREO;\n\n // short blocks\n w = 0;\n for (i = start; i < max; ++i) {\n if (i < bound[w])\n modes[i] = header.mode_extension & ~tables.I_STEREO;\n\n w = (w + 1) % 3;\n }\n } else {\n var bound = 0;\n for (sfbi = l = 0; l < 576; l += n) {\n n = sfbwidth[sfbi++];\n\n for (i = 0; i < n; ++i) {\n if (right_xr[i]) {\n bound = sfbi;\n break;\n }\n }\n\n right_xr += n;\n }\n\n for (i = 0; i < bound; ++i)\n modes[i] = header.mode_extension & ~tables.I_STEREO;\n }\n \n // now do the actual processing\n if (header.flags & MP3FrameHeader.FLAGS.LSF_EXT) {\n var illegal_pos = granules[gr + 1].ch[1].scalefac;\n\n // intensity_scale\n var lsf_scale = IS_Ltables.SF_TABLE[right_ch.scalefac_compress & 0x1];\n \n for (sfbi = l = 0; l < 576; ++sfbi, l += n) {\n n = sfbwidth[sfbi];\n\n if (!(modes[sfbi] & tables.I_STEREO))\n continue;\n\n if (illegal_pos[sfbi]) {\n modes[sfbi] &= ~tables.I_STEREO;\n continue;\n }\n\n is_pos = right_ch.scalefac[sfbi];\n \n for (i = 0; i < n; ++i) {\n var left = xr[0][l + i];\n\n if (is_pos === 0) {\n xr[1][l + i] = left;\n } else {\n var opposite = left * lsf_scale[(is_pos - 1) / 2];\n\n if (is_pos & 1) {\n xr[0][l + i] = opposite;\n xr[1][l + i] = left;\n }\n else {\n xr[1][l + i] = opposite;\n }\n }\n }\n }\n } else {\n for (sfbi = l = 0; l < 576; ++sfbi, l += n) {\n n = sfbwidth[sfbi];\n\n if (!(modes[sfbi] & tables.I_STEREO))\n continue;\n\n is_pos = right_ch.scalefac[sfbi];\n\n if (is_pos >= 7) { // illegal intensity position\n modes[sfbi] &= ~tables.I_STEREO;\n continue;\n }\n\n for (i = 0; i < n; ++i) {\n var left = xr[0][l + i];\n xr[0][l + i] = left * tables.IS_TABLE[is_pos];\n xr[1][l + i] = left * tables.IS_TABLE[6 - is_pos];\n }\n }\n }\n }\n \n // middle/side stereo\n if (header.mode_extension & tables.MS_STEREO) {\n header.flags |= tables.MS_STEREO;\n\n var invsqrt2 = tables.ROOT_TABLE[3 + -2];\n\n for (sfbi = l = 0; l < 576; ++sfbi, l += n) {\n n = sfbwidth[sfbi];\n\n if (modes[sfbi] !== tables.MS_STEREO)\n continue;\n\n for (i = 0; i < n; ++i) {\n var m = xr[0][l + i];\n var s = xr[1][l + i];\n\n xr[0][l + i] = (m + s) * invsqrt2; // l = (m + s) / sqrt(2)\n xr[1][l + i] = (m - s) * invsqrt2; // r = (m - s) / sqrt(2)\n }\n }\n }\n};\n\nLayer3.prototype.aliasreduce = function(xr, lines) {\n for (var xrPointer = 18; xrPointer < lines; xrPointer += 18) {\n for (var i = 0; i < 8; ++i) {\n var a = xr[xrPointer - i - 1];\n var b = xr[xrPointer + i];\n\n xr[xrPointer - i - 1] = a * tables.CS[i] - b * tables.CA[i];\n xr[xrPointer + i] = b * tables.CS[i] + a * tables.CA[i];\n }\n }\n};\n\n// perform IMDCT and windowing for long blocks\nLayer3.prototype.imdct_l = function (X, z, block_type) {\n // IMDCT\n this.imdct.imdct36(X, z);\n\n // windowing\n switch (block_type) {\n case 0: // normal window\n for (var i = 0; i < 36; ++i) z[i] = z[i] * tables.WINDOW_L[i];\n break;\n\n case 1: // start block\n for (var i = 0; i < 18; ++i) z[i] = z[i] * tables.WINDOW_L[i];\n for (var i = 24; i < 30; ++i) z[i] = z[i] * tables.WINDOW_S[i - 18];\n for (var i = 30; i < 36; ++i) z[i] = 0;\n break;\n\n case 3: // stop block\n for (var i = 0; i < 6; ++i) z[i] = 0;\n for (var i = 6; i < 12; ++i) z[i] = z[i] * tables.WINDOW_S[i - 6];\n for (var i = 18; i < 36; ++i) z[i] = z[i] * tables.WINDOW_L[i];\n break;\n }\n};\n\n/*\n * perform IMDCT and windowing for short blocks\n */\nLayer3.prototype.imdct_s = function (X, z) {\n var yptr = 0;\n var wptr;\n var Xptr = 0;\n \n var y = new Float64Array(36);\n var hi, lo;\n\n // IMDCT\n for (var w = 0; w < 3; ++w) {\n var sptr = 0;\n\n for (var i = 0; i < 3; ++i) {\n lo = X[Xptr + 0] * IMDCT.S[sptr][0] +\n X[Xptr + 1] * IMDCT.S[sptr][1] +\n X[Xptr + 2] * IMDCT.S[sptr][2] +\n X[Xptr + 3] * IMDCT.S[sptr][3] +\n X[Xptr + 4] * IMDCT.S[sptr][4] +\n X[Xptr + 5] * IMDCT.S[sptr][5];\n\n\n y[yptr + i + 0] = lo;\n y[yptr + 5 - i] = -y[yptr + i + 0];\n\n ++sptr;\n\n lo = X[Xptr + 0] * IMDCT.S[sptr][0] +\n X[Xptr + 1] * IMDCT.S[sptr][1] +\n X[Xptr + 2] * IMDCT.S[sptr][2] +\n X[Xptr + 3] * IMDCT.S[sptr][3] +\n X[Xptr + 4] * IMDCT.S[sptr][4] +\n X[Xptr + 5] * IMDCT.S[sptr][5];\n\n y[yptr + i + 6] = lo;\n y[yptr + 11 - i] = y[yptr + i + 6];\n\n ++sptr;\n }\n\n yptr += 12;\n Xptr += 6;\n }\n\n // windowing, overlapping and concatenation\n yptr = 0;\n var wptr = 0;\n\n for (var i = 0; i < 6; ++i) {\n z[i + 0] = 0;\n z[i + 6] = y[yptr + 0 + 0] * tables.WINDOW_S[wptr + 0];\n\n lo = y[yptr + 0 + 6] * tables.WINDOW_S[wptr + 6] +\n y[yptr + 12 + 0] * tables.WINDOW_S[wptr + 0];\n\n z[i + 12] = lo;\n\n lo = y[yptr + 12 + 6] * tables.WINDOW_S[wptr + 6] +\n y[yptr + 24 + 0] * tables.WINDOW_S[wptr + 0];\n\n z[i + 18] = lo;\n z[i + 24] = y[yptr + 24 + 6] * tables.WINDOW_S[wptr + 6];\n z[i + 30] = 0;\n\n ++yptr;\n ++wptr;\n }\n};\n\nLayer3.prototype.overlap = function (output, overlap, sample, sb) {\n for (var i = 0; i < 18; ++i) {\n sample[i][sb] = output[i] + overlap[i];\n overlap[i] = output[i + 18];\n }\n};\n\nLayer3.prototype.freqinver = function (sample, sb) {\n for (var i = 1; i < 18; i += 2)\n sample[i][sb] = -sample[i][sb];\n};\n\nLayer3.prototype.overlap_z = function (overlap, sample, sb) {\n for (var i = 0; i < 18; ++i) {\n sample[i][sb] = overlap[i];\n overlap[i] = 0;\n }\n};\n\nLayer3.prototype.reorder = function (xr, channel, sfbwidth) {\n var sfbwidthPointer = 0;\n var tmp = this.tmp;\n var sbw = new Uint32Array(3);\n var sw = new Uint32Array(3);\n \n // this is probably wrong for 8000 Hz mixed blocks\n\n var sb = 0;\n if (channel.flags & tables.MIXED_BLOCK_FLAG) {\n var sb = 2;\n\n var l = 0;\n while (l < 36)\n l += sfbwidth[sfbwidthPointer++];\n }\n\n for (var w = 0; w < 3; ++w) {\n sbw[w] = sb;\n sw[w] = 0;\n }\n\n f = sfbwidth[sfbwidthPointer++];\n w = 0;\n\n for (var l = 18 * sb; l < 576; ++l) {\n if (f-- === 0) {\n f = sfbwidth[sfbwidthPointer++] - 1;\n w = (w + 1) % 3;\n }\n \n tmp[sbw[w]][w][sw[w]++] = xr[l];\n\n if (sw[w] === 6) {\n sw[w] = 0;\n ++sbw[w];\n }\n }\n\n var tmp2 = this.tmp2;\n var ptr = 0;\n \n for (var i = 0; i < 32; i++) {\n for (var j = 0; j < 3; j++) {\n for (var k = 0; k < 6; k++) {\n tmp2[ptr++] = tmp[i][j][k];\n }\n }\n }\n \n var len = (576 - 18 * sb); \n for (var i = 0; i < len; i++) {\n xr[18 * sb + i] = tmp2[sb + i];\n }\n};\n\nmodule.exports = Layer3;\n", 37 "var AV = (window.AV);\nvar MP3FrameHeader = require('./header');\n\nfunction MP3Stream(stream) {\n this.stream = stream; // actual bitstream\n this.sync = false; // stream sync found\n this.freerate = 0; // free bitrate (fixed)\n this.this_frame = stream.stream.offset; // start of current frame\n this.next_frame = stream.stream.offset; // start of next frame\n \n this.main_data = new Uint8Array(MP3FrameHeader.BUFFER_MDLEN); // actual audio data\n this.md_len = 0; // length of main data\n \n // copy methods from actual stream\n for (var key in stream) {\n if (typeof stream[key] === 'function')\n this[key] = stream[key].bind(stream);\n }\n}\n\nMP3Stream.prototype.getU8 = function(offset) {\n var stream = this.stream.stream;\n return stream.peekUInt8(offset - stream.offset);\n};\n\nMP3Stream.prototype.nextByte = function() {\n var stream = this.stream;\n return stream.bitPosition === 0 ? stream.stream.offset : stream.stream.offset + 1;\n};\n\nMP3Stream.prototype.doSync = function() {\n var stream = this.stream.stream;\n this.align();\n \n while (this.available(16) && !(stream.peekUInt8(0) === 0xff && (stream.peekUInt8(1) & 0xe0) === 0xe0)) {\n this.advance(8);\n }\n\n if (!this.available(MP3FrameHeader.BUFFER_GUARD))\n return false;\n \n return true;\n};\n\nMP3Stream.prototype.reset = function(byteOffset) {\n this.seek(byteOffset * 8);\n this.next_frame = byteOffset;\n this.sync = true;\n};\n\nmodule.exports = MP3Stream;\n", 38 "var utils = require('./utils');\n\nfunction MP3Synth() {\n this.filter = utils.makeArray([2, 2, 2, 16, 8]); // polyphase filterbank outputs\n this.phase = 0;\n \n this.pcm = {\n samplerate: 0,\n channels: 0,\n length: 0,\n samples: [new Float64Array(1152), new Float64Array(1152)]\n };\n}\n\n/* costab[i] = cos(PI / (2 * 32) * i) */\nconst costab1 = 0.998795456;\nconst costab2 = 0.995184727;\nconst costab3 = 0.989176510;\nconst costab4 = 0.980785280;\nconst costab5 = 0.970031253;\nconst costab6 = 0.956940336;\nconst costab7 = 0.941544065;\nconst costab8 = 0.923879533;\nconst costab9 = 0.903989293;\nconst costab10 = 0.881921264;\nconst costab11 = 0.857728610;\nconst costab12 = 0.831469612;\nconst costab13 = 0.803207531;\nconst costab14 = 0.773010453;\nconst costab15 = 0.740951125;\nconst costab16 = 0.707106781;\nconst costab17 = 0.671558955;\nconst costab18 = 0.634393284;\nconst costab19 = 0.595699304;\nconst costab20 = 0.555570233;\nconst costab21 = 0.514102744;\nconst costab22 = 0.471396737;\nconst costab23 = 0.427555093;\nconst costab24 = 0.382683432;\nconst costab25 = 0.336889853;\nconst costab26 = 0.290284677;\nconst costab27 = 0.242980180;\nconst costab28 = 0.195090322;\nconst costab29 = 0.146730474;\nconst costab30 = 0.098017140;\nconst costab31 = 0.049067674;\n\n/*\n * NAME: dct32()\n * DESCRIPTION: perform fast in[32].out[32] DCT\n */\nMP3Synth.dct32 = function (_in, slot, lo, hi) {\n var t0, t1, t2, t3, t4, t5, t6, t7;\n var t8, t9, t10, t11, t12, t13, t14, t15;\n var t16, t17, t18, t19, t20, t21, t22, t23;\n var t24, t25, t26, t27, t28, t29, t30, t31;\n var t32, t33, t34, t35, t36, t37, t38, t39;\n var t40, t41, t42, t43, t44, t45, t46, t47;\n var t48, t49, t50, t51, t52, t53, t54, t55;\n var t56, t57, t58, t59, t60, t61, t62, t63;\n var t64, t65, t66, t67, t68, t69, t70, t71;\n var t72, t73, t74, t75, t76, t77, t78, t79;\n var t80, t81, t82, t83, t84, t85, t86, t87;\n var t88, t89, t90, t91, t92, t93, t94, t95;\n var t96, t97, t98, t99, t100, t101, t102, t103;\n var t104, t105, t106, t107, t108, t109, t110, t111;\n var t112, t113, t114, t115, t116, t117, t118, t119;\n var t120, t121, t122, t123, t124, t125, t126, t127;\n var t128, t129, t130, t131, t132, t133, t134, t135;\n var t136, t137, t138, t139, t140, t141, t142, t143;\n var t144, t145, t146, t147, t148, t149, t150, t151;\n var t152, t153, t154, t155, t156, t157, t158, t159;\n var t160, t161, t162, t163, t164, t165, t166, t167;\n var t168, t169, t170, t171, t172, t173, t174, t175;\n var t176;\n\n t0 = _in[0] + _in[31]; t16 = ((_in[0] - _in[31]) * (costab1));\n t1 = _in[15] + _in[16]; t17 = ((_in[15] - _in[16]) * (costab31));\n\n t41 = t16 + t17;\n t59 = ((t16 - t17) * (costab2));\n t33 = t0 + t1;\n t50 = ((t0 - t1) * ( costab2));\n\n t2 = _in[7] + _in[24]; t18 = ((_in[7] - _in[24]) * (costab15));\n t3 = _in[8] + _in[23]; t19 = ((_in[8] - _in[23]) * (costab17));\n\n t42 = t18 + t19;\n t60 = ((t18 - t19) * (costab30));\n t34 = t2 + t3;\n t51 = ((t2 - t3) * ( costab30));\n\n t4 = _in[3] + _in[28]; t20 = ((_in[3] - _in[28]) * (costab7));\n t5 = _in[12] + _in[19]; t21 = ((_in[12] - _in[19]) * (costab25));\n\n t43 = t20 + t21;\n t61 = ((t20 - t21) * (costab14));\n t35 = t4 + t5;\n t52 = ((t4 - t5) * ( costab14));\n\n t6 = _in[4] + _in[27]; t22 = ((_in[4] - _in[27]) * (costab9));\n t7 = _in[11] + _in[20]; t23 = ((_in[11] - _in[20]) * (costab23));\n\n t44 = t22 + t23;\n t62 = ((t22 - t23) * (costab18));\n t36 = t6 + t7;\n t53 = ((t6 - t7) * ( costab18));\n\n t8 = _in[1] + _in[30]; t24 = ((_in[1] - _in[30]) * (costab3));\n t9 = _in[14] + _in[17]; t25 = ((_in[14] - _in[17]) * (costab29));\n\n t45 = t24 + t25;\n t63 = ((t24 - t25) * (costab6));\n t37 = t8 + t9;\n t54 = ((t8 - t9) * ( costab6));\n\n t10 = _in[6] + _in[25]; t26 = ((_in[6] - _in[25]) * (costab13));\n t11 = _in[9] + _in[22]; t27 = ((_in[9] - _in[22]) * (costab19));\n\n t46 = t26 + t27;\n t64 = ((t26 - t27) * (costab26));\n t38 = t10 + t11;\n t55 = ((t10 - t11) * (costab26));\n\n t12 = _in[2] + _in[29]; t28 = ((_in[2] - _in[29]) * (costab5));\n t13 = _in[13] + _in[18]; t29 = ((_in[13] - _in[18]) * (costab27));\n\n t47 = t28 + t29;\n t65 = ((t28 - t29) * (costab10));\n t39 = t12 + t13;\n t56 = ((t12 - t13) * (costab10));\n\n t14 = _in[5] + _in[26]; t30 = ((_in[5] - _in[26]) * (costab11));\n t15 = _in[10] + _in[21]; t31 = ((_in[10] - _in[21]) * (costab21));\n\n t48 = t30 + t31;\n t66 = ((t30 - t31) * (costab22));\n t40 = t14 + t15;\n t57 = ((t14 - t15) * (costab22));\n\n t69 = t33 + t34; t89 = ((t33 - t34) * (costab4));\n t70 = t35 + t36; t90 = ((t35 - t36) * (costab28));\n t71 = t37 + t38; t91 = ((t37 - t38) * (costab12));\n t72 = t39 + t40; t92 = ((t39 - t40) * (costab20));\n t73 = t41 + t42; t94 = ((t41 - t42) * (costab4));\n t74 = t43 + t44; t95 = ((t43 - t44) * (costab28));\n t75 = t45 + t46; t96 = ((t45 - t46) * (costab12));\n t76 = t47 + t48; t97 = ((t47 - t48) * (costab20));\n\n t78 = t50 + t51; t100 = ((t50 - t51) * (costab4));\n t79 = t52 + t53; t101 = ((t52 - t53) * (costab28));\n t80 = t54 + t55; t102 = ((t54 - t55) * (costab12));\n t81 = t56 + t57; t103 = ((t56 - t57) * (costab20));\n\n t83 = t59 + t60; t106 = ((t59 - t60) * (costab4));\n t84 = t61 + t62; t107 = ((t61 - t62) * (costab28));\n t85 = t63 + t64; t108 = ((t63 - t64) * (costab12));\n t86 = t65 + t66; t109 = ((t65 - t66) * (costab20));\n\n t113 = t69 + t70;\n t114 = t71 + t72;\n\n /* 0 */ hi[15][slot] = t113 + t114;\n /* 16 */ lo[ 0][slot] = ((t113 - t114) * (costab16));\n\n t115 = t73 + t74;\n t116 = t75 + t76;\n\n t32 = t115 + t116;\n\n /* 1 */ hi[14][slot] = t32;\n\n t118 = t78 + t79;\n t119 = t80 + t81;\n\n t58 = t118 + t119;\n\n /* 2 */ hi[13][slot] = t58;\n\n t121 = t83 + t84;\n t122 = t85 + t86;\n\n t67 = t121 + t122;\n\n t49 = (t67 * 2) - t32;\n\n /* 3 */ hi[12][slot] = t49;\n\n t125 = t89 + t90;\n t126 = t91 + t92;\n\n t93 = t125 + t126;\n\n /* 4 */ hi[11][slot] = t93;\n\n t128 = t94 + t95;\n t129 = t96 + t97;\n\n t98 = t128 + t129;\n\n t68 = (t98 * 2) - t49;\n\n /* 5 */ hi[10][slot] = t68;\n\n t132 = t100 + t101;\n t133 = t102 + t103;\n\n t104 = t132 + t133;\n\n t82 = (t104 * 2) - t58;\n\n /* 6 */ hi[ 9][slot] = t82;\n\n t136 = t106 + t107;\n t137 = t108 + t109;\n\n t110 = t136 + t137;\n\n t87 = (t110 * 2) - t67;\n\n t77 = (t87 * 2) - t68;\n\n /* 7 */ hi[ 8][slot] = t77;\n\n t141 = ((t69 - t70) * (costab8));\n t142 = ((t71 - t72) * (costab24));\n t143 = t141 + t142;\n\n /* 8 */ hi[ 7][slot] = t143;\n /* 24 */ lo[ 8][slot] =\n (((t141 - t142) * (costab16) * 2)) - t143;\n\n t144 = ((t73 - t74) * (costab8));\n t145 = ((t75 - t76) * (costab24));\n t146 = t144 + t145;\n\n t88 = (t146 * 2) - t77;\n\n /* 9 */ hi[ 6][slot] = t88;\n\n t148 = ((t78 - t79) * (costab8));\n t149 = ((t80 - t81) * (costab24));\n t150 = t148 + t149;\n\n t105 = (t150 * 2) - t82;\n\n /* 10 */ hi[ 5][slot] = t105;\n\n t152 = ((t83 - t84) * (costab8));\n t153 = ((t85 - t86) * (costab24));\n t154 = t152 + t153;\n\n t111 = (t154 * 2) - t87;\n\n t99 = (t111 * 2) - t88;\n\n /* 11 */ hi[ 4][slot] = t99;\n\n t157 = ((t89 - t90) * (costab8));\n t158 = ((t91 - t92) * (costab24));\n t159 = t157 + t158;\n\n t127 = (t159 * 2) - t93;\n\n /* 12 */ hi[ 3][slot] = t127;\n\n t160 = (((t125 - t126) * (costab16) * 2)) - t127;\n\n /* 20 */ lo[ 4][slot] = t160;\n /* 28 */ lo[12][slot] =\n (((((t157 - t158) * (costab16) * 2) - t159) * 2)) - t160;\n\n t161 = ((t94 - t95) * (costab8));\n t162 = ((t96 - t97) * (costab24));\n t163 = t161 + t162;\n\n t130 = (t163 * 2) - t98;\n\n t112 = (t130 * 2) - t99;\n\n /* 13 */ hi[ 2][slot] = t112;\n\n t164 = (((t128 - t129) * (costab16) * 2)) - t130;\n\n t166 = ((t100 - t101) * (costab8));\n t167 = ((t102 - t103) * (costab24));\n t168 = t166 + t167;\n\n t134 = (t168 * 2) - t104;\n\n t120 = (t134 * 2) - t105;\n\n /* 14 */ hi[ 1][slot] = t120;\n\n t135 = (((t118 - t119) * (costab16) * 2)) - t120;\n\n /* 18 */ lo[ 2][slot] = t135;\n\n t169 = (((t132 - t133) * (costab16) * 2)) - t134;\n\n t151 = (t169 * 2) - t135;\n\n /* 22 */ lo[ 6][slot] = t151;\n\n t170 = (((((t148 - t149) * (costab16) * 2) - t150) * 2)) - t151;\n\n /* 26 */ lo[10][slot] = t170;\n /* 30 */ lo[14][slot] =\n (((((((t166 - t167) * (costab16)) * 2 -\n t168) * 2) - t169) * 2) - t170);\n\n t171 = ((t106 - t107) * (costab8));\n t172 = ((t108 - t109) * (costab24));\n t173 = t171 + t172;\n\n t138 = (t173 * 2) - t110;\n t123 = (t138 * 2) - t111;\n t139 = (((t121 - t122) * (costab16) * 2)) - t123;\n t117 = (t123 * 2) - t112;\n\n /* 15 */ hi[ 0][slot] = t117;\n\n t124 = (((t115 - t116) * (costab16) * 2)) - t117;\n\n /* 17 */ lo[ 1][slot] = t124;\n\n t131 = (t139 * 2) - t124;\n\n /* 19 */ lo[ 3][slot] = t131;\n\n t140 = (t164 * 2) - t131;\n\n /* 21 */ lo[ 5][slot] = t140;\n\n t174 = (((t136 - t137) * (costab16) * 2)) - t138;\n t155 = (t174 * 2) - t139;\n t147 = (t155 * 2) - t140;\n\n /* 23 */ lo[ 7][slot] = t147;\n\n t156 = (((((t144 - t145) * (costab16) * 2) - t146) * 2)) - t147;\n\n /* 25 */ lo[ 9][slot] = t156;\n\n t175 = (((((t152 - t153) * (costab16) * 2) - t154) * 2)) - t155;\n t165 = (t175 * 2) - t156;\n\n /* 27 */ lo[11][slot] = t165;\n\n t176 = (((((((t161 - t162) * (costab16) * 2)) -\n t163) * 2) - t164) * 2) - t165;\n\n /* 29 */ lo[13][slot] = t176;\n /* 31 */ lo[15][slot] =\n (((((((((t171 - t172) * (costab16)) * 2 -\n t173) * 2) - t174) * 2) - t175) * 2) - t176);\n\n /*\n * Totals:\n * 80 multiplies\n * 80 additions\n * 119 subtractions\n * 49 shifts (not counting SSO)\n */\n};\n\n/*\n * These are the coefficients for the subband synthesis window. This is a\n * reordered version of Table B.3 from ISO/IEC 11172-3.\n */\nconst D = [\n [ 0.000000000, /* 0 */\n -0.000442505,\n 0.003250122,\n -0.007003784,\n 0.031082153,\n -0.078628540,\n 0.100311279,\n -0.572036743,\n 1.144989014,\n 0.572036743,\n 0.100311279,\n 0.078628540,\n 0.031082153,\n 0.007003784,\n 0.003250122,\n 0.000442505,\n\n 0.000000000,\n -0.000442505,\n 0.003250122,\n -0.007003784,\n 0.031082153,\n -0.078628540,\n 0.100311279,\n -0.572036743,\n 1.144989014,\n 0.572036743,\n 0.100311279,\n 0.078628540,\n 0.031082153,\n 0.007003784,\n 0.003250122,\n 0.000442505 ],\n\n [ -0.000015259, /* 1 */\n -0.000473022,\n 0.003326416,\n -0.007919312,\n 0.030517578,\n -0.084182739,\n 0.090927124,\n -0.600219727,\n 1.144287109,\n 0.543823242,\n 0.108856201,\n 0.073059082,\n 0.031478882,\n 0.006118774,\n 0.003173828,\n 0.000396729,\n\n -0.000015259,\n -0.000473022,\n 0.003326416,\n -0.007919312,\n 0.030517578,\n -0.084182739,\n 0.090927124,\n -0.600219727,\n 1.144287109,\n 0.543823242,\n 0.108856201,\n 0.073059082,\n 0.031478882,\n 0.006118774,\n 0.003173828,\n 0.000396729 ],\n\n [ -0.000015259, /* 2 */\n -0.000534058,\n 0.003387451,\n -0.008865356,\n 0.029785156,\n -0.089706421,\n 0.080688477,\n -0.628295898,\n 1.142211914,\n 0.515609741,\n 0.116577148,\n 0.067520142,\n 0.031738281,\n 0.005294800,\n 0.003082275,\n 0.000366211,\n\n -0.000015259,\n -0.000534058,\n 0.003387451,\n -0.008865356,\n 0.029785156,\n -0.089706421,\n 0.080688477,\n -0.628295898,\n 1.142211914,\n 0.515609741,\n 0.116577148,\n 0.067520142,\n 0.031738281,\n 0.005294800,\n 0.003082275,\n 0.000366211 ],\n\n [ -0.000015259, /* 3 */\n -0.000579834,\n 0.003433228,\n -0.009841919,\n 0.028884888,\n -0.095169067,\n 0.069595337,\n -0.656219482,\n 1.138763428,\n 0.487472534,\n 0.123474121,\n 0.061996460,\n 0.031845093,\n 0.004486084,\n 0.002990723,\n 0.000320435,\n\n -0.000015259,\n -0.000579834,\n 0.003433228,\n -0.009841919,\n 0.028884888,\n -0.095169067,\n 0.069595337,\n -0.656219482,\n 1.138763428,\n 0.487472534,\n 0.123474121,\n 0.061996460,\n 0.031845093,\n 0.004486084,\n 0.002990723,\n 0.000320435 ],\n\n [ -0.000015259, /* 4 */\n -0.000625610,\n 0.003463745,\n -0.010848999,\n 0.027801514,\n -0.100540161,\n 0.057617187,\n -0.683914185,\n 1.133926392,\n 0.459472656,\n 0.129577637,\n 0.056533813,\n 0.031814575,\n 0.003723145,\n 0.002899170,\n 0.000289917,\n\n -0.000015259,\n -0.000625610,\n 0.003463745,\n -0.010848999,\n 0.027801514,\n -0.100540161,\n 0.057617187,\n -0.683914185,\n 1.133926392,\n 0.459472656,\n 0.129577637,\n 0.056533813,\n 0.031814575,\n 0.003723145,\n 0.002899170,\n 0.000289917 ],\n\n [ -0.000015259, /* 5 */\n -0.000686646,\n 0.003479004,\n -0.011886597,\n 0.026535034,\n -0.105819702,\n 0.044784546,\n -0.711318970,\n 1.127746582,\n 0.431655884,\n 0.134887695,\n 0.051132202,\n 0.031661987,\n 0.003005981,\n 0.002792358,\n 0.000259399,\n\n -0.000015259,\n -0.000686646,\n 0.003479004,\n -0.011886597,\n 0.026535034,\n -0.105819702,\n 0.044784546,\n -0.711318970,\n 1.127746582,\n 0.431655884,\n 0.134887695,\n 0.051132202,\n 0.031661987,\n 0.003005981,\n 0.002792358,\n 0.000259399 ],\n\n [ -0.000015259, /* 6 */\n -0.000747681,\n 0.003479004,\n -0.012939453,\n 0.025085449,\n -0.110946655,\n 0.031082153,\n -0.738372803,\n 1.120223999,\n 0.404083252,\n 0.139450073,\n 0.045837402,\n 0.031387329,\n 0.002334595,\n 0.002685547,\n 0.000244141,\n\n -0.000015259,\n -0.000747681,\n 0.003479004,\n -0.012939453,\n 0.025085449,\n -0.110946655,\n 0.031082153,\n -0.738372803,\n 1.120223999,\n 0.404083252,\n 0.139450073,\n 0.045837402,\n 0.031387329,\n 0.002334595,\n 0.002685547,\n 0.000244141 ],\n\n [ -0.000030518, /* 7 */\n -0.000808716,\n 0.003463745,\n -0.014022827,\n 0.023422241,\n -0.115921021,\n 0.016510010,\n -0.765029907,\n 1.111373901,\n 0.376800537,\n 0.143264771,\n 0.040634155,\n 0.031005859,\n 0.001693726,\n 0.002578735,\n 0.000213623,\n\n -0.000030518,\n -0.000808716,\n 0.003463745,\n -0.014022827,\n 0.023422241,\n -0.115921021,\n 0.016510010,\n -0.765029907,\n 1.111373901,\n 0.376800537,\n 0.143264771,\n 0.040634155,\n 0.031005859,\n 0.001693726,\n 0.002578735,\n 0.000213623 ],\n\n [ -0.000030518, /* 8 */\n -0.000885010,\n 0.003417969,\n -0.015121460,\n 0.021575928,\n -0.120697021,\n 0.001068115,\n -0.791213989,\n 1.101211548,\n 0.349868774,\n 0.146362305,\n 0.035552979,\n 0.030532837,\n 0.001098633,\n 0.002456665,\n 0.000198364,\n\n -0.000030518,\n -0.000885010,\n 0.003417969,\n -0.015121460,\n 0.021575928,\n -0.120697021,\n 0.001068115,\n -0.791213989,\n 1.101211548,\n 0.349868774,\n 0.146362305,\n 0.035552979,\n 0.030532837,\n 0.001098633,\n 0.002456665,\n 0.000198364 ],\n\n [ -0.000030518, /* 9 */\n -0.000961304,\n 0.003372192,\n -0.016235352,\n 0.019531250,\n -0.125259399,\n -0.015228271,\n -0.816864014,\n 1.089782715,\n 0.323318481,\n 0.148773193,\n 0.030609131,\n 0.029937744,\n 0.000549316,\n 0.002349854,\n 0.000167847,\n\n -0.000030518,\n -0.000961304,\n 0.003372192,\n -0.016235352,\n 0.019531250,\n -0.125259399,\n -0.015228271,\n -0.816864014,\n 1.089782715,\n 0.323318481,\n 0.148773193,\n 0.030609131,\n 0.029937744,\n 0.000549316,\n 0.002349854,\n 0.000167847 ],\n\n [ -0.000030518, /* 10 */\n -0.001037598,\n 0.003280640,\n -0.017349243,\n 0.017257690,\n -0.129562378,\n -0.032379150,\n -0.841949463,\n 1.077117920,\n 0.297210693,\n 0.150497437,\n 0.025817871,\n 0.029281616,\n 0.000030518,\n 0.002243042,\n 0.000152588,\n\n -0.000030518,\n -0.001037598,\n 0.003280640,\n -0.017349243,\n 0.017257690,\n -0.129562378,\n -0.032379150,\n -0.841949463,\n 1.077117920,\n 0.297210693,\n 0.150497437,\n 0.025817871,\n 0.029281616,\n 0.000030518,\n 0.002243042,\n 0.000152588 ],\n\n [ -0.000045776, /* 11 */\n -0.001113892,\n 0.003173828,\n -0.018463135,\n 0.014801025,\n -0.133590698,\n -0.050354004,\n -0.866363525,\n 1.063217163,\n 0.271591187,\n 0.151596069,\n 0.021179199,\n 0.028533936,\n -0.000442505,\n 0.002120972,\n 0.000137329,\n\n -0.000045776,\n -0.001113892,\n 0.003173828,\n -0.018463135,\n 0.014801025,\n -0.133590698,\n -0.050354004,\n -0.866363525,\n 1.063217163,\n 0.271591187,\n 0.151596069,\n 0.021179199,\n 0.028533936,\n -0.000442505,\n 0.002120972,\n 0.000137329 ],\n\n [ -0.000045776, /* 12 */\n -0.001205444,\n 0.003051758,\n -0.019577026,\n 0.012115479,\n -0.137298584,\n -0.069168091,\n -0.890090942,\n 1.048156738,\n 0.246505737,\n 0.152069092,\n 0.016708374,\n 0.027725220,\n -0.000869751,\n 0.002014160,\n 0.000122070,\n\n -0.000045776,\n -0.001205444,\n 0.003051758,\n -0.019577026,\n 0.012115479,\n -0.137298584,\n -0.069168091,\n -0.890090942,\n 1.048156738,\n 0.246505737,\n 0.152069092,\n 0.016708374,\n 0.027725220,\n -0.000869751,\n 0.002014160,\n 0.000122070 ],\n\n [ -0.000061035, /* 13 */\n -0.001296997,\n 0.002883911,\n -0.020690918,\n 0.009231567,\n -0.140670776,\n -0.088775635,\n -0.913055420,\n 1.031936646,\n 0.221984863,\n 0.151962280,\n 0.012420654,\n 0.026840210,\n -0.001266479,\n 0.001907349,\n 0.000106812,\n\n -0.000061035,\n -0.001296997,\n 0.002883911,\n -0.020690918,\n 0.009231567,\n -0.140670776,\n -0.088775635,\n -0.913055420,\n 1.031936646,\n 0.221984863,\n 0.151962280,\n 0.012420654,\n 0.026840210,\n -0.001266479,\n 0.001907349,\n 0.000106812 ],\n\n [ -0.000061035, /* 14 */\n -0.001388550,\n 0.002700806,\n -0.021789551,\n 0.006134033,\n -0.143676758,\n -0.109161377,\n -0.935195923,\n 1.014617920,\n 0.198059082,\n 0.151306152,\n 0.008316040,\n 0.025909424,\n -0.001617432,\n 0.001785278,\n 0.000106812,\n\n -0.000061035,\n -0.001388550,\n 0.002700806,\n -0.021789551,\n 0.006134033,\n -0.143676758,\n -0.109161377,\n -0.935195923,\n 1.014617920,\n 0.198059082,\n 0.151306152,\n 0.008316040,\n 0.025909424,\n -0.001617432,\n 0.001785278,\n 0.000106812 ],\n\n [ -0.000076294, /* 15 */\n -0.001480103,\n 0.002487183,\n -0.022857666,\n 0.002822876,\n -0.146255493,\n -0.130310059,\n -0.956481934,\n 0.996246338,\n 0.174789429,\n 0.150115967,\n 0.004394531,\n 0.024932861,\n -0.001937866,\n 0.001693726,\n 0.000091553,\n\n -0.000076294,\n -0.001480103,\n 0.002487183,\n -0.022857666,\n 0.002822876,\n -0.146255493,\n -0.130310059,\n -0.956481934,\n 0.996246338,\n 0.174789429,\n 0.150115967,\n 0.004394531,\n 0.024932861,\n -0.001937866,\n 0.001693726,\n 0.000091553 ],\n\n [ -0.000076294, /* 16 */\n -0.001586914,\n 0.002227783,\n -0.023910522,\n -0.000686646,\n -0.148422241,\n -0.152206421,\n -0.976852417,\n 0.976852417,\n 0.152206421,\n 0.148422241,\n 0.000686646,\n 0.023910522,\n -0.002227783,\n 0.001586914,\n 0.000076294,\n\n -0.000076294,\n -0.001586914,\n 0.002227783,\n -0.023910522,\n -0.000686646,\n -0.148422241,\n -0.152206421,\n -0.976852417,\n 0.976852417,\n 0.152206421,\n 0.148422241,\n 0.000686646,\n 0.023910522,\n -0.002227783,\n 0.001586914,\n 0.000076294 ]\n];\n\n/*\n * perform full frequency PCM synthesis\n */\nMP3Synth.prototype.full = function(frame, nch, ns) {\n var Dptr, hi, lo, ptr;\n \n for (var ch = 0; ch < nch; ++ch) {\n var sbsample = frame.sbsample[ch];\n var filter = this.filter[ch];\n var phase = this.phase;\n var pcm = this.pcm.samples[ch];\n var pcm1Ptr = 0;\n var pcm2Ptr = 0;\n\n for (var s = 0; s < ns; ++s) {\n MP3Synth.dct32(sbsample[s], phase >> 1, filter[0][phase & 1], filter[1][phase & 1]);\n\n var pe = phase & ~1;\n var po = ((phase - 1) & 0xf) | 1;\n\n /* calculate 32 samples */\n var fe = filter[0][ phase & 1];\n var fx = filter[0][~phase & 1];\n var fo = filter[1][~phase & 1];\n\n var fePtr = 0;\n var fxPtr = 0;\n var foPtr = 0;\n \n Dptr = 0;\n\n ptr = D[Dptr];\n _fx = fx[fxPtr];\n _fe = fe[fePtr];\n\n lo = _fx[0] * ptr[po + 0];\n lo += _fx[1] * ptr[po + 14];\n lo += _fx[2] * ptr[po + 12];\n lo += _fx[3] * ptr[po + 10];\n lo += _fx[4] * ptr[po + 8];\n lo += _fx[5] * ptr[po + 6];\n lo += _fx[6] * ptr[po + 4];\n lo += _fx[7] * ptr[po + 2];\n lo = -lo; \n \n lo += _fe[0] * ptr[pe + 0];\n lo += _fe[1] * ptr[pe + 14];\n lo += _fe[2] * ptr[pe + 12];\n lo += _fe[3] * ptr[pe + 10];\n lo += _fe[4] * ptr[pe + 8];\n lo += _fe[5] * ptr[pe + 6];\n lo += _fe[6] * ptr[pe + 4];\n lo += _fe[7] * ptr[pe + 2];\n\n pcm[pcm1Ptr++] = lo;\n pcm2Ptr = pcm1Ptr + 30;\n\n for (var sb = 1; sb < 16; ++sb) {\n ++fePtr;\n ++Dptr;\n\n /* D[32 - sb][i] === -D[sb][31 - i] */\n\n ptr = D[Dptr];\n _fo = fo[foPtr];\n _fe = fe[fePtr];\n\n lo = _fo[0] * ptr[po + 0];\n lo += _fo[1] * ptr[po + 14];\n lo += _fo[2] * ptr[po + 12];\n lo += _fo[3] * ptr[po + 10];\n lo += _fo[4] * ptr[po + 8];\n lo += _fo[5] * ptr[po + 6];\n lo += _fo[6] * ptr[po + 4];\n lo += _fo[7] * ptr[po + 2];\n lo = -lo;\n\n lo += _fe[7] * ptr[pe + 2];\n lo += _fe[6] * ptr[pe + 4];\n lo += _fe[5] * ptr[pe + 6];\n lo += _fe[4] * ptr[pe + 8];\n lo += _fe[3] * ptr[pe + 10];\n lo += _fe[2] * ptr[pe + 12];\n lo += _fe[1] * ptr[pe + 14];\n lo += _fe[0] * ptr[pe + 0];\n\n pcm[pcm1Ptr++] = lo;\n\n lo = _fe[0] * ptr[-pe + 31 - 16];\n lo += _fe[1] * ptr[-pe + 31 - 14];\n lo += _fe[2] * ptr[-pe + 31 - 12];\n lo += _fe[3] * ptr[-pe + 31 - 10];\n lo += _fe[4] * ptr[-pe + 31 - 8];\n lo += _fe[5] * ptr[-pe + 31 - 6];\n lo += _fe[6] * ptr[-pe + 31 - 4];\n lo += _fe[7] * ptr[-pe + 31 - 2];\n\n lo += _fo[7] * ptr[-po + 31 - 2];\n lo += _fo[6] * ptr[-po + 31 - 4];\n lo += _fo[5] * ptr[-po + 31 - 6];\n lo += _fo[4] * ptr[-po + 31 - 8];\n lo += _fo[3] * ptr[-po + 31 - 10];\n lo += _fo[2] * ptr[-po + 31 - 12];\n lo += _fo[1] * ptr[-po + 31 - 14];\n lo += _fo[0] * ptr[-po + 31 - 16];\n\n pcm[pcm2Ptr--] = lo;\n ++foPtr;\n }\n\n ++Dptr;\n\n ptr = D[Dptr];\n _fo = fo[foPtr];\n\n lo = _fo[0] * ptr[po + 0];\n lo += _fo[1] * ptr[po + 14];\n lo += _fo[2] * ptr[po + 12];\n lo += _fo[3] * ptr[po + 10];\n lo += _fo[4] * ptr[po + 8];\n lo += _fo[5] * ptr[po + 6];\n lo += _fo[6] * ptr[po + 4];\n lo += _fo[7] * ptr[po + 2];\n\n pcm[pcm1Ptr] = -lo;\n pcm1Ptr += 16;\n phase = (phase + 1) % 16;\n }\n }\n};\n\n// TODO: synth.half()\n\n/*\n * NAME: synth.frame()\n * DESCRIPTION: perform PCM synthesis of frame subband samples\n */\nMP3Synth.prototype.frame = function (frame) {\n var nch = frame.header.nchannels();\n var ns = frame.header.nbsamples();\n\n this.pcm.samplerate = frame.header.samplerate;\n this.pcm.channels = nch;\n this.pcm.length = 32 * ns;\n\n /*\n if (frame.options & Mad.Option.HALFSAMPLERATE) {\n this.pcm.samplerate /= 2;\n this.pcm.length /= 2;\n\n throw new Error(\"HALFSAMPLERATE is not supported. What do you think? As if I have the time for this\");\n }\n */\n\n this.full(frame, nch, ns);\n this.phase = (this.phase + ns) % 16;\n};\n\nmodule.exports = MP3Synth;\n", 39 "/*\n * These are the scalefactor values for Layer I and Layer II.\n * The values are from Table B.1 of ISO/IEC 11172-3.\n *\n * Strictly speaking, Table B.1 has only 63 entries (0-62), thus a strict\n * interpretation of ISO/IEC 11172-3 would suggest that a scalefactor index of\n * 63 is invalid. However, for better compatibility with current practices, we\n * add a 64th entry.\n */\nexports.SF_TABLE = new Float32Array([\n 2.000000000000, 1.587401051968, 1.259921049895, 1.000000000000, \n 0.793700525984, 0.629960524947, 0.500000000000, 0.396850262992,\n 0.314980262474, 0.250000000000, 0.198425131496, 0.157490131237,\n 0.125000000000, 0.099212565748, 0.078745065618, 0.062500000000,\n 0.049606282874, 0.039372532809, 0.031250000000, 0.024803141437,\n 0.019686266405, 0.015625000000, 0.012401570719, 0.009843133202,\n 0.007812500000, 0.006200785359, 0.004921566601, 0.003906250000,\n 0.003100392680, 0.002460783301, 0.001953125000, 0.001550196340,\n 0.001230391650, 0.000976562500, 0.000775098170, 0.000615195825,\n 0.000488281250, 0.000387549085, 0.000307597913, 0.000244140625,\n 0.000193774542, 0.000153798956, 0.000122070313, 0.000096887271,\n 0.000076899478, 0.000061035156, 0.000048443636, 0.000038449739,\n 0.000030517578, 0.000024221818, 0.000019224870, 0.000015258789,\n 0.000012110909, 0.000009612435, 0.000007629395, 0.000006055454,\n 0.000004806217, 0.000003814697, 0.000003027727, 0.000002403109,\n 0.000001907349, 0.000001513864, 0.000001201554, 0.000000000000\n]);\n\n/*\n * MPEG-1 scalefactor band widths\n * derived from Table B.8 of ISO/IEC 11172-3\n */\nconst SFB_48000_LONG = new Uint8Array([\n 4, 4, 4, 4, 4, 4, 6, 6, 6, 8, 10,\n 12, 16, 18, 22, 28, 34, 40, 46, 54, 54, 192\n]);\n\nconst SFB_44100_LONG = new Uint8Array([\n 4, 4, 4, 4, 4, 4, 6, 6, 8, 8, 10,\n 12, 16, 20, 24, 28, 34, 42, 50, 54, 76, 158\n]);\n\nconst SFB_32000_LONG = new Uint8Array([\n 4, 4, 4, 4, 4, 4, 6, 6, 8, 10, 12,\n 16, 20, 24, 30, 38, 46, 56, 68, 84, 102, 26\n]);\n\nconst SFB_48000_SHORT = new Uint8Array([\n 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 6,\n 6, 6, 6, 6, 6, 10, 10, 10, 12, 12, 12, 14, 14,\n 14, 16, 16, 16, 20, 20, 20, 26, 26, 26, 66, 66, 66\n]);\n\nconst SFB_44100_SHORT = new Uint8Array([\n 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 6,\n 6, 6, 8, 8, 8, 10, 10, 10, 12, 12, 12, 14, 14,\n 14, 18, 18, 18, 22, 22, 22, 30, 30, 30, 56, 56, 56\n]);\n\nconst SFB_32000_SHORT = new Uint8Array([\n 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 6,\n 6, 6, 8, 8, 8, 12, 12, 12, 16, 16, 16, 20, 20,\n 20, 26, 26, 26, 34, 34, 34, 42, 42, 42, 12, 12, 12\n]);\n\nconst SFB_48000_MIXED = new Uint8Array([\n /* long */ 4, 4, 4, 4, 4, 4, 6, 6,\n /* short */ 4, 4, 4, 6, 6, 6, 6, 6, 6, 10,\n 10, 10, 12, 12, 12, 14, 14, 14, 16, 16,\n 16, 20, 20, 20, 26, 26, 26, 66, 66, 66\n]);\n\nconst SFB_44100_MIXED = new Uint8Array([\n /* long */ 4, 4, 4, 4, 4, 4, 6, 6,\n /* short */ 4, 4, 4, 6, 6, 6, 8, 8, 8, 10,\n 10, 10, 12, 12, 12, 14, 14, 14, 18, 18,\n 18, 22, 22, 22, 30, 30, 30, 56, 56, 56\n]);\n\nconst SFB_32000_MIXED = new Uint8Array([\n /* long */ 4, 4, 4, 4, 4, 4, 6, 6,\n /* short */ 4, 4, 4, 6, 6, 6, 8, 8, 8, 12,\n 12, 12, 16, 16, 16, 20, 20, 20, 26, 26,\n 26, 34, 34, 34, 42, 42, 42, 12, 12, 12\n]);\n\n/*\n * MPEG-2 scalefactor band widths\n * derived from Table B.2 of ISO/IEC 13818-3\n */\nconst SFB_24000_LONG = new Uint8Array([\n 6, 6, 6, 6, 6, 6, 8, 10, 12, 14, 16,\n 18, 22, 26, 32, 38, 46, 54, 62, 70, 76, 36\n]);\n\nconst SFB_22050_LONG = new Uint8Array([\n 6, 6, 6, 6, 6, 6, 8, 10, 12, 14, 16,\n 20, 24, 28, 32, 38, 46, 52, 60, 68, 58, 54\n]);\n\nconst SFB_16000_LONG = SFB_22050_LONG;\n\nconst SFB_24000_SHORT = new Uint8Array([\n 4, 4, 4, 4, 4, 4, 4, 4, 4, 6, 6, 6, 8,\n 8, 8, 10, 10, 10, 12, 12, 12, 14, 14, 14, 18, 18,\n 18, 24, 24, 24, 32, 32, 32, 44, 44, 44, 12, 12, 12\n]);\n\nconst SFB_22050_SHORT = new Uint8Array([\n 4, 4, 4, 4, 4, 4, 4, 4, 4, 6, 6, 6, 6,\n 6, 6, 8, 8, 8, 10, 10, 10, 14, 14, 14, 18, 18,\n 18, 26, 26, 26, 32, 32, 32, 42, 42, 42, 18, 18, 18\n]);\n\nconst SFB_16000_SHORT = new Uint8Array([\n 4, 4, 4, 4, 4, 4, 4, 4, 4, 6, 6, 6, 8,\n 8, 8, 10, 10, 10, 12, 12, 12, 14, 14, 14, 18, 18,\n 18, 24, 24, 24, 30, 30, 30, 40, 40, 40, 18, 18, 18\n]);\n\nconst SFB_24000_MIXED = new Uint8Array([\n /* long */ 6, 6, 6, 6, 6, 6,\n /* short */ 6, 6, 6, 8, 8, 8, 10, 10, 10, 12,\n 12, 12, 14, 14, 14, 18, 18, 18, 24, 24,\n 24, 32, 32, 32, 44, 44, 44, 12, 12, 12\n]);\n\nconst SFB_22050_MIXED = new Uint8Array([\n /* long */ 6, 6, 6, 6, 6, 6,\n /* short */ 6, 6, 6, 6, 6, 6, 8, 8, 8, 10,\n 10, 10, 14, 14, 14, 18, 18, 18, 26, 26,\n 26, 32, 32, 32, 42, 42, 42, 18, 18, 18\n]);\n\nconst SFB_16000_MIXED = new Uint8Array([\n /* long */ 6, 6, 6, 6, 6, 6,\n /* short */ 6, 6, 6, 8, 8, 8, 10, 10, 10, 12,\n 12, 12, 14, 14, 14, 18, 18, 18, 24, 24,\n 24, 30, 30, 30, 40, 40, 40, 18, 18, 18\n]);\n\n/*\n * MPEG 2.5 scalefactor band widths\n * derived from public sources\n */\nconst SFB_12000_LONG = SFB_16000_LONG;\nconst SFB_11025_LONG = SFB_12000_LONG;\n\nconst SFB_8000_LONG = new Uint8Array([\n 12, 12, 12, 12, 12, 12, 16, 20, 24, 28, 32,\n 40, 48, 56, 64, 76, 90, 2, 2, 2, 2, 2\n]);\n\nconst SFB_12000_SHORT = SFB_16000_SHORT;\nconst SFB_11025_SHORT = SFB_12000_SHORT;\n\nconst SFB_8000_SHORT = new Uint8Array([\n 8, 8, 8, 8, 8, 8, 8, 8, 8, 12, 12, 12, 16,\n 16, 16, 20, 20, 20, 24, 24, 24, 28, 28, 28, 36, 36,\n 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 26, 26, 26\n]);\n\nconst SFB_12000_MIXED = SFB_16000_MIXED;\nconst SFB_11025_MIXED = SFB_12000_MIXED;\n\n/* the 8000 Hz short block scalefactor bands do not break after\n the first 36 frequency lines, so this is probably wrong */\nconst SFB_8000_MIXED = new Uint8Array([\n /* long */ 12, 12, 12,\n /* short */ 4, 4, 4, 8, 8, 8, 12, 12, 12, 16, 16, 16,\n 20, 20, 20, 24, 24, 24, 28, 28, 28, 36, 36, 36,\n 2, 2, 2, 2, 2, 2, 2, 2, 2, 26, 26, 26\n]);\n\nexports.SFBWIDTH_TABLE = [\n { l: SFB_48000_LONG, s: SFB_48000_SHORT, m: SFB_48000_MIXED },\n { l: SFB_44100_LONG, s: SFB_44100_SHORT, m: SFB_44100_MIXED },\n { l: SFB_32000_LONG, s: SFB_32000_SHORT, m: SFB_32000_MIXED },\n { l: SFB_24000_LONG, s: SFB_24000_SHORT, m: SFB_24000_MIXED },\n { l: SFB_22050_LONG, s: SFB_22050_SHORT, m: SFB_22050_MIXED },\n { l: SFB_16000_LONG, s: SFB_16000_SHORT, m: SFB_16000_MIXED },\n { l: SFB_12000_LONG, s: SFB_12000_SHORT, m: SFB_12000_MIXED },\n { l: SFB_11025_LONG, s: SFB_11025_SHORT, m: SFB_11025_MIXED },\n { l: SFB_8000_LONG, s: SFB_8000_SHORT, m: SFB_8000_MIXED }\n];\n\nexports.PRETAB = new Uint8Array([\n 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 3, 2, 0\n]);\n\n/*\n * fractional powers of two\n * used for requantization and joint stereo decoding\n *\n * ROOT_TABLE[3 + x] = 2^(x/4)\n */\nexports.ROOT_TABLE = new Float32Array([\n /* 2^(-3/4) */ 0.59460355750136,\n /* 2^(-2/4) */ 0.70710678118655,\n /* 2^(-1/4) */ 0.84089641525371,\n /* 2^( 0/4) */ 1.00000000000000,\n /* 2^(+1/4) */ 1.18920711500272,\n /* 2^(+2/4) */ 1.41421356237310,\n /* 2^(+3/4) */ 1.68179283050743\n]);\n\nexports.CS = new Float32Array([\n +0.857492926 , +0.881741997,\n +0.949628649 , +0.983314592,\n +0.995517816 , +0.999160558,\n +0.999899195 , +0.999993155\n]);\n\nexports.CA = new Float32Array([\n -0.514495755, -0.471731969,\n -0.313377454, -0.181913200,\n -0.094574193, -0.040965583,\n -0.014198569, -0.003699975\n]);\n\nexports.COUNT1TABLE_SELECT = 0x01;\nexports.SCALEFAC_SCALE = 0x02;\nexports.PREFLAG = 0x04;\nexports.MIXED_BLOCK_FLAG = 0x08;\n\nexports.I_STEREO = 0x1;\nexports.MS_STEREO = 0x2;\n\n/*\n * windowing coefficients for long blocks\n * derived from section 2.4.3.4.10.3 of ISO/IEC 11172-3\n *\n * WINDOW_L[i] = sin((PI / 36) * (i + 1/2))\n */\nexports.WINDOW_L = new Float32Array([\n 0.043619387, 0.130526192,\n 0.216439614, 0.300705800,\n 0.382683432, 0.461748613,\n 0.537299608, 0.608761429,\n 0.675590208, 0.737277337,\n 0.793353340, 0.843391446,\n\n 0.887010833, 0.923879533,\n 0.953716951, 0.976296007,\n 0.991444861, 0.999048222,\n 0.999048222, 0.991444861,\n 0.976296007, 0.953716951,\n 0.923879533, 0.887010833,\n\n 0.843391446, 0.793353340,\n 0.737277337, 0.675590208,\n 0.608761429, 0.537299608,\n 0.461748613, 0.382683432,\n 0.300705800, 0.216439614,\n 0.130526192, 0.043619387\n]);\n\n/*\n * windowing coefficients for short blocks\n * derived from section 2.4.3.4.10.3 of ISO/IEC 11172-3\n *\n * WINDOW_S[i] = sin((PI / 12) * (i + 1/2))\n */\nexports.WINDOW_S = new Float32Array([\n 0.130526192, 0.382683432,\n 0.608761429, 0.793353340,\n 0.923879533, 0.991444861,\n 0.991444861, 0.923879533,\n 0.793353340, 0.608761429,\n 0.382683432, 0.130526192\n]);\n\n/*\n * coefficients for intensity stereo processing\n * derived from section 2.4.3.4.9.3 of ISO/IEC 11172-3\n *\n * is_ratio[i] = tan(i * (PI / 12))\n * IS_TABLE[i] = is_ratio[i] / (1 + is_ratio[i])\n */\nexports.IS_TABLE = new Float32Array([\n 0.000000000,\n 0.211324865,\n 0.366025404,\n 0.500000000,\n 0.633974596,\n 0.788675135,\n 1.000000000\n]);\n\n/*\n * coefficients for LSF intensity stereo processing\n * derived from section 2.4.3.2 of ISO/IEC 13818-3\n *\n * IS_LSF_TABLE[0][i] = (1 / sqrt(sqrt(2)))^(i + 1)\n * IS_LSF_TABLE[1][i] = (1 / sqrt(2)) ^(i + 1)\n */\nexports.IS_LSF_TABLE = [\n new Float32Array([\n 0.840896415,\n 0.707106781,\n 0.594603558,\n 0.500000000,\n 0.420448208,\n 0.353553391,\n 0.297301779,\n 0.250000000,\n 0.210224104,\n 0.176776695,\n 0.148650889,\n 0.125000000,\n 0.105112052,\n 0.088388348,\n 0.074325445\n ]), \n new Float32Array([\n 0.707106781,\n 0.500000000,\n 0.353553391,\n 0.250000000,\n 0.176776695,\n 0.125000000,\n 0.088388348,\n 0.062500000,\n 0.044194174,\n 0.031250000,\n 0.022097087,\n 0.015625000,\n 0.011048543,\n 0.007812500,\n 0.005524272\n ])\n];\n\n/*\n * scalefactor bit lengths\n * derived from section 2.4.2.7 of ISO/IEC 11172-3\n */\nexports.SFLEN_TABLE = [\n { slen1: 0, slen2: 0 }, { slen1: 0, slen2: 1 }, { slen1: 0, slen2: 2 }, { slen1: 0, slen2: 3 },\n { slen1: 3, slen2: 0 }, { slen1: 1, slen2: 1 }, { slen1: 1, slen2: 2 }, { slen1: 1, slen2: 3 },\n { slen1: 2, slen2: 1 }, { slen1: 2, slen2: 2 }, { slen1: 2, slen2: 3 }, { slen1: 3, slen2: 1 },\n { slen1: 3, slen2: 2 }, { slen1: 3, slen2: 3 }, { slen1: 4, slen2: 2 }, { slen1: 4, slen2: 3 } \n];\n\n/*\n * number of LSF scalefactor band values\n * derived from section 2.4.3.2 of ISO/IEC 13818-3\n */\nexports.NSFB_TABLE = [\n [ [ 6, 5, 5, 5 ],\n [ 9, 9, 9, 9 ],\n [ 6, 9, 9, 9 ] ],\n\n [ [ 6, 5, 7, 3 ],\n [ 9, 9, 12, 6 ],\n [ 6, 9, 12, 6 ] ],\n\n [ [ 11, 10, 0, 0 ],\n [ 18, 18, 0, 0 ],\n [ 15, 18, 0, 0 ] ],\n\n [ [ 7, 7, 7, 0 ],\n [ 12, 12, 12, 0 ],\n [ 6, 15, 12, 0 ] ],\n\n [ [ 6, 6, 6, 3 ],\n [ 12, 9, 9, 6 ],\n [ 6, 12, 9, 6 ] ],\n\n [ [ 8, 8, 5, 0 ],\n [ 15, 12, 9, 0 ],\n [ 6, 18, 9, 0 ] ]\n];\n ", 40 "/**\n * Makes a multidimensional array\n */\nexports.makeArray = function(lengths, Type) {\n if (!Type) Type = Float64Array;\n \n if (lengths.length === 1) {\n return new Type(lengths[0]);\n }\n \n var ret = [],\n len = lengths[0];\n \n for (var j = 0; j < len; j++) {\n ret[j] = exports.makeArray(lengths.slice(1), Type);\n }\n \n return ret;\n};\n" 41 ], 42 "sourceRoot": "" 43}