{"header":{"message":"delete dead code","description":null,"timestamp":"2023-03-10T02:36:19Z","authors":[{"email":"vc@akkartik.com","name":"Kartik K. Agaram"}]},"hash":"H3VZFEW4P3GU2TFCMNLGARZCVPGZHHJ6C3O7Z3HEFK3MNGZRXOVQC","authors":[],"deps":{"hashes":[["H3VZFEW4P3GU2TFCMNLGARZCVPGZHHJ6C3O7Z3HEFK3MNGZRXOVQC","delete dead code"],["AA",null],["5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC","I can now save and load .wav files"]],"deps":["5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC"],"known":[]},"hunks":[{"Replacement":{"inode":{"change":2,"pos":1},"path":"wav.lua","line":11,"ins":{"up_context":[{"change":2,"pos":1157}],"down_context":[{"change":2,"pos":1227}],"flag":"BLOCK","start":1,"end":62,"inode":{"change":2,"pos":1}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":1157},"to":{"change":2,"start":1157,"end":1227},"introduced_by":2}],"inode":{"change":2,"pos":1}},"ins_contents":[{"Add":{"text":"\t\tWrites audio file in WAVE format with PCM integer samples.","pos":"H3VZFEW4P3GU2TFCMNLGARZCVPGZHHJ6C3O7Z3HEFK3MNGZRXOVQC:61"}}],"del_contents":[{"Del":{"text":"\t\tReads or writes audio file in WAVE format with PCM integer samples.","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1226"}}]}},{"Replacement":{"inode":{"change":2,"pos":1},"path":"wav.lua","line":13,"ins":{"up_context":[{"change":2,"pos":1230}],"down_context":[{"change":2,"pos":1913}],"flag":"BLOCK","start":63,"end":165,"inode":{"change":2,"pos":1}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":1230},"to":{"change":2,"start":1230,"end":1913},"introduced_by":2}],"inode":{"change":2,"pos":1}},"ins_contents":[{"Add":{"text":" Function 'create_context' requires a filename and returns a table with the","pos":"H3VZFEW4P3GU2TFCMNLGARZCVPGZHHJ6C3O7Z3HEFK3MNGZRXOVQC:141"}},{"Add":{"text":" following methods:","pos":"H3VZFEW4P3GU2TFCMNLGARZCVPGZHHJ6C3O7Z3HEFK3MNGZRXOVQC:164"}}],"del_contents":[{"Del":{"text":"\t\tFunction 'create_context' requires 2 arguments: a filename and a mode, which can be \"r\" (read) or \"w\" (write).","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1342"}},{"Del":{"text":"\t\tA call returns one table with methods depending on the used mode.","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1410"}},{"Del":{"text":"\t\tOn reading, following methods are callable:","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1456"}},{"Del":{"text":"\t\t- get_filename()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1475"}},{"Del":{"text":"\t\t- get_mode()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1490"}},{"Del":{"text":"\t\t- get_file_size()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1510"}},{"Del":{"text":"\t\t- get_channels_number()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1536"}},{"Del":{"text":"\t\t- get_sample_rate()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1558"}},{"Del":{"text":"\t\t- get_byte_rate()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1578"}},{"Del":{"text":"\t\t- get_block_align()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1600"}},{"Del":{"text":"\t\t- get_bits_per_sample()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1626"}},{"Del":{"text":"\t\t- get_samples_per_channel()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1656"}},{"Del":{"text":"\t\t- get_sample_from_ms(ms)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1683"}},{"Del":{"text":"\t\t- get_ms_from_sample(sample)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1714"}},{"Del":{"text":"\t\t- get_min_max_amplitude()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1742"}},{"Del":{"text":"\t\t- get_position()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1761"}},{"Del":{"text":"\t\t- set_position(pos)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1783"}},{"Del":{"text":"\t\t- get_samples_interlaced(n)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1813"}},{"Del":{"text":"\t\t- get_samples(n)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1832"}},{"Del":{"text":"\t\tOn writing, following methods are callable:","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1878"}},{"Del":{"text":"\t\t- get_filename()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1897"}},{"Del":{"text":"\t\t- get_mode()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:1912"}}]}},{"Replacement":{"inode":{"change":2,"pos":1},"path":"wav.lua","line":21,"ins":{"up_context":[{"change":2,"pos":2104}],"down_context":[{"change":2,"pos":2147}],"flag":"BLOCK","start":166,"end":203,"inode":{"change":2,"pos":1}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":2104},"to":{"change":2,"start":2104,"end":2147},"introduced_by":2}],"inode":{"change":2,"pos":1}},"ins_contents":[{"Add":{"text":"\tcreate_context = function(filename)","pos":"H3VZFEW4P3GU2TFCMNLGARZCVPGZHHJ6C3O7Z3HEFK3MNGZRXOVQC:202"}}],"del_contents":[{"Del":{"text":"\tcreate_context = function(filename, mode)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:2146"}}]}},{"Replacement":{"inode":{"change":2,"pos":1},"path":"wav.lua","line":23,"ins":{"up_context":[{"change":2,"pos":2178}],"down_context":[{"change":2,"pos":2337}],"flag":"BLOCK","start":204,"end":309,"inode":{"change":2,"pos":1}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":2178},"to":{"change":2,"start":2178,"end":2337},"introduced_by":2}],"inode":{"change":2,"pos":1}},"ins_contents":[{"Add":{"text":"\t\tif type(filename) ~= \"string\" then","pos":"H3VZFEW4P3GU2TFCMNLGARZCVPGZHHJ6C3O7Z3HEFK3MNGZRXOVQC:240"}},{"Add":{"text":"\t\t\terror(\"invalid function parameter, expected string filename\", 2)","pos":"H3VZFEW4P3GU2TFCMNLGARZCVPGZHHJ6C3O7Z3HEFK3MNGZRXOVQC:308"}}],"del_contents":[{"Del":{"text":"\t\tif type(filename) ~= \"string\" or not (mode == \"r\" or mode == \"w\") then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:2250"}},{"Del":{"text":"\t\t\terror(\"invalid function parameters, expected filename and mode \\\"r\\\" or \\\"w\\\"\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:2336"}}]}},{"Replacement":{"inode":{"change":2,"pos":1},"path":"wav.lua","line":27,"ins":{"up_context":[{"change":2,"pos":2366}],"down_context":[{"change":2,"pos":2429}],"flag":"BLOCK","start":310,"end":349,"inode":{"change":2,"pos":1}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":2366},"to":{"change":2,"start":2366,"end":2429},"introduced_by":2}],"inode":{"change":2,"pos":1}},"ins_contents":[{"Add":{"text":"\t\tlocal file = io.open(filename, \"wb\")","pos":"H3VZFEW4P3GU2TFCMNLGARZCVPGZHHJ6C3O7Z3HEFK3MNGZRXOVQC:348"}}],"del_contents":[{"Del":{"text":"\t\tlocal file = io.open(filename, mode == \"r\" and \"rb\" or \"wb\")","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:2428"}}]}},{"Replacement":{"inode":{"change":2,"pos":1},"path":"wav.lua","line":31,"ins":{"up_context":[{"change":2,"pos":2516}],"down_context":[{"change":2,"pos":2836}],"flag":"BLOCK","start":350,"end":421,"inode":{"change":2,"pos":1}},"del":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":2516},"to":{"change":2,"start":2516,"end":2836},"introduced_by":2}],"inode":{"change":2,"pos":1}},"ins_contents":[{"Add":{"text":"\t\t-- Byte-string(unsigned integer,little endian)<-Lua-number converter","pos":"H3VZFEW4P3GU2TFCMNLGARZCVPGZHHJ6C3O7Z3HEFK3MNGZRXOVQC:420"}}],"del_contents":[{"Del":{"text":"\t\t-- Byte-string(unsigend integer,little endian)<->Lua-number converters","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:2588"}},{"Del":{"text":"\t\tlocal function bton(s)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:2613"}},{"Del":{"text":"\t\t\tlocal bytes = {s:byte(1,#s)}","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:2645"}},{"Del":{"text":"\t\t\tlocal n, bytes_n = 0, #bytes","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:2677"}},{"Del":{"text":"\t\t\tfor i = 0, bytes_n-1 do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:2704"}},{"Del":{"text":"\t\t\t\tn = n + bytes[1+i] * 2^(i*8)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:2737"}},{"Del":{"text":"\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:2744"}},{"Del":{"text":"\t\t\treturn n","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:2756"}},{"Del":{"text":"\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:2762"}},{"Del":{"text":"\t\tlocal unpack = table.unpack or unpack\t-- Lua 5.1 or 5.2 table unpacker","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:2835"}}]}},{"Edit":{"inode":{"change":2,"pos":1},"path":"wav.lua","line":44,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":3145},"to":{"change":2,"start":3145,"end":3196},"introduced_by":2}],"inode":{"change":2,"pos":1}}},"contents":[{"Del":{"text":"\t\t-- Initialize read process","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3173"}},{"Del":{"text":"\t\tif mode == \"r\" then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3195"}}]}},{"Edit":{"inode":{"change":2,"pos":1},"path":"wav.lua","line":45,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":3226},"to":{"change":2,"start":3226,"end":9146},"introduced_by":2}],"inode":{"change":2,"pos":1}}},"contents":[{"Del":{"text":"\t\t\tlocal file_size, channels_number, sample_rate, byte_rate, block_align, bits_per_sample, samples_per_channel","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3336"}},{"Del":{"text":"\t\t\t-- Audio samples file area","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3366"}},{"Del":{"text":"\t\t\tlocal data_begin, data_end","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3396"}},{"Del":{"text":"\t\t\t-- Read file type","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3417"}},{"Del":{"text":"\t\t\tif file:read(4) ~= \"RIFF\" then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3451"}},{"Del":{"text":"\t\t\t\terror(\"not a RIFF file\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3483"}},{"Del":{"text":"\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3490"}},{"Del":{"text":"\t\t\tfile_size = file:read(4)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3518"}},{"Del":{"text":"\t\t\tif not file_size then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3543"}},{"Del":{"text":"\t\t\t\terror(\"file header incomplete (file size)\")","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3591"}},{"Del":{"text":"\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3598"}},{"Del":{"text":"\t\t\tfile_size = bton(file_size) + 8","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3633"}},{"Del":{"text":"\t\t\tif file:read(4) ~= \"WAVE\" then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3667"}},{"Del":{"text":"\t\t\t\terror(\"not a WAVE file\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3699"}},{"Del":{"text":"\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3706"}},{"Del":{"text":"\t\t\t-- Read file chunks","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3729"}},{"Del":{"text":"\t\t\tlocal chunk_id, chunk_size","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3759"}},{"Del":{"text":"\t\t\twhile true do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3776"}},{"Del":{"text":"\t\t\t\t-- Read chunk header","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3801"}},{"Del":{"text":"\t\t\t\tchunk_id, chunk_size = file:read(4), file:read(4)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3855"}},{"Del":{"text":"\t\t\t\tif not chunk_size then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3882"}},{"Del":{"text":"\t\t\t\t\tbreak","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3893"}},{"Del":{"text":"\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3901"}},{"Del":{"text":"\t\t\t\tchunk_size = bton(chunk_size)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3935"}},{"Del":{"text":"\t\t\t\t-- Identify chunk type","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3962"}},{"Del":{"text":"\t\t\t\tif chunk_id == \"fmt \" then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:3993"}},{"Del":{"text":"\t\t\t\t\t-- Read format informations","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4026"}},{"Del":{"text":"\t\t\t\t\tlocal bytes = file:read(2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4058"}},{"Del":{"text":"\t\t\t\t\tif not bytes or bton(bytes) ~= 1 then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4101"}},{"Del":{"text":"\t\t\t\t\t\terror(\"data must be in PCM format\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4146"}},{"Del":{"text":"\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4155"}},{"Del":{"text":"\t\t\t\t\tbytes = file:read(2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4181"}},{"Del":{"text":"\t\t\t\t\tif not bytes then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4204"}},{"Del":{"text":"\t\t\t\t\t\terror(\"channels number not found\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4248"}},{"Del":{"text":"\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4257"}},{"Del":{"text":"\t\t\t\t\tchannels_number = bton(bytes)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4292"}},{"Del":{"text":"\t\t\t\t\tbytes = file:read(4)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4318"}},{"Del":{"text":"\t\t\t\t\tif not bytes then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4341"}},{"Del":{"text":"\t\t\t\t\t\terror(\"sample rate not found\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4381"}},{"Del":{"text":"\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4390"}},{"Del":{"text":"\t\t\t\t\tsample_rate = bton(bytes)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4421"}},{"Del":{"text":"\t\t\t\t\tbytes = file:read(4)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4447"}},{"Del":{"text":"\t\t\t\t\tif not bytes then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4470"}},{"Del":{"text":"\t\t\t\t\t\terror(\"byte rate not found\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4508"}},{"Del":{"text":"\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4517"}},{"Del":{"text":"\t\t\t\t\tbyte_rate = bton(bytes)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4546"}},{"Del":{"text":"\t\t\t\t\tbytes = file:read(2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4572"}},{"Del":{"text":"\t\t\t\t\tif not bytes then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4595"}},{"Del":{"text":"\t\t\t\t\t\terror(\"block align not found\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4635"}},{"Del":{"text":"\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4644"}},{"Del":{"text":"\t\t\t\t\tblock_align = bton(bytes)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4675"}},{"Del":{"text":"\t\t\t\t\tbytes = file:read(2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4701"}},{"Del":{"text":"\t\t\t\t\tif not bytes then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4724"}},{"Del":{"text":"\t\t\t\t\t\terror(\"bits per sample not found\")","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4765"}},{"Del":{"text":"\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4774"}},{"Del":{"text":"\t\t\t\t\tbits_per_sample = bton(bytes)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4809"}},{"Del":{"text":"\t\t\t\t\tif bits_per_sample ~= 8 and bits_per_sample ~= 16 and bits_per_sample ~= 24 and bits_per_sample ~= 32 then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4921"}},{"Del":{"text":"\t\t\t\t\t\terror(\"bits per sample must be 8, 16, 24 or 32\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4979"}},{"Del":{"text":"\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:4988"}},{"Del":{"text":"\t\t\t\t\tfile:seek(\"cur\", chunk_size-16)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5025"}},{"Del":{"text":"\t\t\t\telseif chunk_id == \"data\" then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5060"}},{"Del":{"text":"\t\t\t\t\t-- Read samples","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5081"}},{"Del":{"text":"\t\t\t\t\tif not block_align then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5110"}},{"Del":{"text":"\t\t\t\t\t\terror(\"format informations must be defined before sample data\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5183"}},{"Del":{"text":"\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5192"}},{"Del":{"text":"\t\t\t\t\tsamples_per_channel = chunk_size / block_align","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5244"}},{"Del":{"text":"\t\t\t\t\tdata_begin = file:seek()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5274"}},{"Del":{"text":"\t\t\t\t\tdata_end = data_begin + chunk_size","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5314"}},{"Del":{"text":"\t\t\t\t\tbreak\t-- Stop here for later reading","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5356"}},{"Del":{"text":"\t\t\t\telse","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5365"}},{"Del":{"text":"\t\t\t\t\t-- Skip chunk","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5384"}},{"Del":{"text":"\t\t\t\t\tfile:seek(\"cur\", chunk_size)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5418"}},{"Del":{"text":"\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5426"}},{"Del":{"text":"\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5433"}},{"Del":{"text":"\t\t\t-- Enough informations available?","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5470"}},{"Del":{"text":"\t\t\tif not bits_per_sample then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5501"}},{"Del":{"text":"\t\t\t\terror(\"no format informations found\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5546"}},{"Del":{"text":"\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5553"}},{"Del":{"text":"\t\t\t-- Return audio handler","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5580"}},{"Del":{"text":"\t\t\tlocal obj","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5593"}},{"Del":{"text":"\t\t\tobj = {","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5604"}},{"Del":{"text":"\t\t\t\tget_filename = function()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5634"}},{"Del":{"text":"\t\t\t\t\treturn filename","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5655"}},{"Del":{"text":"\t\t\t\tend,","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5664"}},{"Del":{"text":"\t\t\t\tget_mode = function()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5690"}},{"Del":{"text":"\t\t\t\t\treturn mode","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5707"}},{"Del":{"text":"\t\t\t\tend,","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5716"}},{"Del":{"text":"\t\t\t\tget_file_size = function()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5747"}},{"Del":{"text":"\t\t\t\t\treturn file_size","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5769"}},{"Del":{"text":"\t\t\t\tend,","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5778"}},{"Del":{"text":"\t\t\t\tget_channels_number = function()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5815"}},{"Del":{"text":"\t\t\t\t\treturn channels_number","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5843"}},{"Del":{"text":"\t\t\t\tend,","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5852"}},{"Del":{"text":"\t\t\t\tget_sample_rate = function()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5885"}},{"Del":{"text":"\t\t\t\t\treturn sample_rate","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5909"}},{"Del":{"text":"\t\t\t\tend,","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5918"}},{"Del":{"text":"\t\t\t\tget_byte_rate = function()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5949"}},{"Del":{"text":"\t\t\t\t\treturn byte_rate","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5971"}},{"Del":{"text":"\t\t\t\tend,","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:5980"}},{"Del":{"text":"\t\t\t\tget_block_align = function()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6013"}},{"Del":{"text":"\t\t\t\t\treturn block_align","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6037"}},{"Del":{"text":"\t\t\t\tend,","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6046"}},{"Del":{"text":"\t\t\t\tget_bits_per_sample = function()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6083"}},{"Del":{"text":"\t\t\t\t\treturn bits_per_sample","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6111"}},{"Del":{"text":"\t\t\t\tend,","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6120"}},{"Del":{"text":"\t\t\t\tget_samples_per_channel = function()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6161"}},{"Del":{"text":"\t\t\t\t\treturn samples_per_channel","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6193"}},{"Del":{"text":"\t\t\t\tend,","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6202"}},{"Del":{"text":"\t\t\t\tget_sample_from_ms = function(ms)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6240"}},{"Del":{"text":"\t\t\t\t\tif not isint(ms) or ms < 0 then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6277"}},{"Del":{"text":"\t\t\t\t\t\terror(\"positive integer expected\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6321"}},{"Del":{"text":"\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6330"}},{"Del":{"text":"\t\t\t\t\treturn ms * 0.001 * sample_rate","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6367"}},{"Del":{"text":"\t\t\t\tend,","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6376"}},{"Del":{"text":"\t\t\t\tget_ms_from_sample = function(sample)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6418"}},{"Del":{"text":"\t\t\t\t\tif not isint(sample) or sample < 0 then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6463"}},{"Del":{"text":"\t\t\t\t\t\terror(\"positive integer expected\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6507"}},{"Del":{"text":"\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6516"}},{"Del":{"text":"\t\t\t\t\treturn sample / sample_rate * 1000","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6556"}},{"Del":{"text":"\t\t\t\tend,","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6565"}},{"Del":{"text":"\t\t\t\tget_min_max_amplitude = function()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6604"}},{"Del":{"text":"\t\t\t\t\tlocal half_level = 2^bits_per_sample / 2","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6650"}},{"Del":{"text":"\t\t\t\t\treturn -half_level, half_level - 1","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6690"}},{"Del":{"text":"\t\t\t\tend,","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6699"}},{"Del":{"text":"\t\t\t\tget_position = function()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6729"}},{"Del":{"text":"\t\t\t\t\tif not data_begin then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6757"}},{"Del":{"text":"\t\t\t\t\t\terror(\"no samples available\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6796"}},{"Del":{"text":"\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6805"}},{"Del":{"text":"\t\t\t\t\treturn (file:seek() - data_begin) / block_align","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6858"}},{"Del":{"text":"\t\t\t\tend,","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6867"}},{"Del":{"text":"\t\t\t\tset_position = function(pos)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6900"}},{"Del":{"text":"\t\t\t\t\tif not isint(pos) or pos < 0 then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6939"}},{"Del":{"text":"\t\t\t\t\t\terror(\"positive integer expected\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:6983"}},{"Del":{"text":"\t\t\t\t\telseif not data_begin then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7015"}},{"Del":{"text":"\t\t\t\t\t\terror(\"no samples available\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7054"}},{"Del":{"text":"\t\t\t\t\telseif data_begin + pos * block_align > data_end then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7113"}},{"Del":{"text":"\t\t\t\t\t\terror(\"tried to set position behind data end\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7169"}},{"Del":{"text":"\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7178"}},{"Del":{"text":"\t\t\t\t\tfile:seek(\"set\", data_begin + pos * block_align)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7232"}},{"Del":{"text":"\t\t\t\tend,","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7241"}},{"Del":{"text":"\t\t\t\tget_samples_interlaced = function(n)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7282"}},{"Del":{"text":"\t\t\t\t\tif not isint(n) or n <= 0 then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7318"}},{"Del":{"text":"\t\t\t\t\t\terror(\"positive integer greater zero expected\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7375"}},{"Del":{"text":"\t\t\t\t\telseif not data_begin then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7407"}},{"Del":{"text":"\t\t\t\t\t\terror(\"no samples available\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7446"}},{"Del":{"text":"\t\t\t\t\telseif file:seek() + n * block_align > data_end then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7504"}},{"Del":{"text":"\t\t\t\t\t\terror(\"tried to read over data end\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7550"}},{"Del":{"text":"\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7559"}},{"Del":{"text":"\t\t\t\t\tlocal bytes, sample, output = file:read(n * block_align), nil, {n = 0}","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7635"}},{"Del":{"text":"\t\t\t\t\tlocal bytes_n = #bytes","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7663"}},{"Del":{"text":"\t\t\t\t\tif bits_per_sample == 8 then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7697"}},{"Del":{"text":"\t\t\t\t\t\tfor i=1, bytes_n, 1 do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7726"}},{"Del":{"text":"\t\t\t\t\t\t\tsample = bton(bytes:sub(i,i))","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7763"}},{"Del":{"text":"\t\t\t\t\t\t\toutput.n = output.n + 1","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7794"}},{"Del":{"text":"\t\t\t\t\t\t\toutput[output.n] = sample > 127 and sample - 256 or sample","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7860"}},{"Del":{"text":"\t\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7870"}},{"Del":{"text":"\t\t\t\t\telseif bits_per_sample == 16 then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7909"}},{"Del":{"text":"\t\t\t\t\t\tfor i=1, bytes_n, 2 do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7938"}},{"Del":{"text":"\t\t\t\t\t\t\tsample = bton(bytes:sub(i,i+1))","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:7977"}},{"Del":{"text":"\t\t\t\t\t\t\toutput.n = output.n + 1","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8008"}},{"Del":{"text":"\t\t\t\t\t\t\toutput[output.n] = sample > 32767 and sample - 65536 or sample","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8078"}},{"Del":{"text":"\t\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8088"}},{"Del":{"text":"\t\t\t\t\telseif bits_per_sample == 24 then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8127"}},{"Del":{"text":"\t\t\t\t\t\tfor i=1, bytes_n, 3 do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8156"}},{"Del":{"text":"\t\t\t\t\t\t\tsample = bton(bytes:sub(i,i+2))","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8195"}},{"Del":{"text":"\t\t\t\t\t\t\toutput.n = output.n + 1","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8226"}},{"Del":{"text":"\t\t\t\t\t\t\toutput[output.n] = sample > 8388607 and sample - 16777216 or sample","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8301"}},{"Del":{"text":"\t\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8311"}},{"Del":{"text":"\t\t\t\t\telse\t-- if bits_per_sample == 32 then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8354"}},{"Del":{"text":"\t\t\t\t\t\tfor i=1, bytes_n, 4 do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8383"}},{"Del":{"text":"\t\t\t\t\t\t\tsample = bton(bytes:sub(i,i+3))","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8422"}},{"Del":{"text":"\t\t\t\t\t\t\toutput.n = output.n + 1","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8453"}},{"Del":{"text":"\t\t\t\t\t\t\toutput[output.n] = sample > 2147483647 and sample - 4294967296 or sample","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8533"}},{"Del":{"text":"\t\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8543"}},{"Del":{"text":"\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8552"}},{"Del":{"text":"\t\t\t\t\treturn output","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8571"}},{"Del":{"text":"\t\t\t\tend,","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8580"}},{"Del":{"text":"\t\t\t\tget_samples = function(n)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8610"}},{"Del":{"text":"\t\t\t\t\tlocal success, samples = pcall(obj.get_samples_interlaced, n)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8677"}},{"Del":{"text":"\t\t\t\t\tif not success then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8702"}},{"Del":{"text":"\t\t\t\t\t\terror(samples, 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8726"}},{"Del":{"text":"\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8735"}},{"Del":{"text":"\t\t\t\t\tlocal output, channel_samples = {n = channels_number}","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8794"}},{"Del":{"text":"\t\t\t\t\tfor c=1, output.n do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8820"}},{"Del":{"text":"\t\t\t\t\t\tchannel_samples = {n = samples.n / channels_number}","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8878"}},{"Del":{"text":"\t\t\t\t\t\tfor s=1, channel_samples.n do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8914"}},{"Del":{"text":"\t\t\t\t\t\t\tchannel_samples[s] = samples[c + (s-1) * channels_number]","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8979"}},{"Del":{"text":"\t\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:8989"}},{"Del":{"text":"\t\t\t\t\t\toutput[c] = channel_samples","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:9023"}},{"Del":{"text":"\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:9032"}},{"Del":{"text":"\t\t\t\t\treturn output","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:9051"}},{"Del":{"text":"\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:9059"}},{"Del":{"text":"\t\t\t}","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:9064"}},{"Del":{"text":"\t\t\treturn obj","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:9078"}},{"Del":{"text":"\t\t-- Initialize write process","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:9108"}},{"Del":{"text":"\t\telse","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:9115"}},{"Del":{"text":"\t\t\t-- Audio meta informations","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:9145"}}]}},{"Edit":{"inode":{"change":2,"pos":1},"path":"wav.lua","line":48,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":9236},"to":{"change":2,"start":9236,"end":9348},"introduced_by":2}],"inode":{"change":2,"pos":1}}},"contents":[{"Del":{"text":"\t\t\t\tget_filename = function()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:9265"}},{"Del":{"text":"\t\t\t\t\treturn filename","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:9286"}},{"Del":{"text":"\t\t\t\tend,","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:9295"}},{"Del":{"text":"\t\t\t\tget_mode = function()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:9321"}},{"Del":{"text":"\t\t\t\t\treturn mode","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:9338"}},{"Del":{"text":"\t\t\t\tend,","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:9347"}}]}},{"Edit":{"inode":{"change":2,"pos":1},"path":"wav.lua","line":54,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":9756},"to":{"change":2,"start":9756,"end":9943},"introduced_by":2}],"inode":{"change":2,"pos":1}}},"contents":[{"Del":{"text":"\t\t\t\t\t-- Already finished?","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:9781"}},{"Del":{"text":"\t\t\t\t\telseif not file then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:9807"}},{"Del":{"text":"\t\t\t\t\t\terror(\"already finished\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:9842"}},{"Del":{"text":"\t\t\t\t\t-- Already initialized?","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:9871"}},{"Del":{"text":"\t\t\t\t\telseif file:seek() > 0 then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:9904"}},{"Del":{"text":"\t\t\t\t\t\terror(\"already initialized\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:9942"}}]}},{"Edit":{"inode":{"change":2,"pos":1},"path":"wav.lua","line":137,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":12605},"to":{"change":2,"start":12605,"end":12611},"introduced_by":2}],"inode":{"change":2,"pos":1}}},"contents":[{"Del":{"text":"\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:12610"}}]}},{"Edit":{"inode":{"change":2,"pos":1},"path":"wav.lua","line":138,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":12617},"to":{"change":2,"start":12617,"end":17363},"introduced_by":2}],"inode":{"change":2,"pos":1}}},"contents":[{"Del":{"text":"\t--[[","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:12622"}},{"Del":{"text":"\t\tAnalyses frequencies of audio samples.","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:12663"}},{"Del":{"text":"\t\t","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:12666"}},{"Del":{"text":"\t\tFunction 'create_frequency_analyzer' requires 2 arguments: a table with audio samples and the relating sample rate.","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:12784"}},{"Del":{"text":"\t\tA call returns one table with following methods:","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:12835"}},{"Del":{"text":"\t\t- get_frequencies()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:12857"}},{"Del":{"text":"\t\t- get_frequency_weight(freq)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:12888"}},{"Del":{"text":"\t\t- get_frequency_range_weight(freq_min, freq_max)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:12939"}},{"Del":{"text":"\t\t","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:12942"}},{"Del":{"text":"\t\t(FFT: http://www.relisoft.com/science/physics/fft.html)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13000"}},{"Del":{"text":"\t]]","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13004"}},{"Del":{"text":"\tcreate_frequency_analyzer = function(samples, sample_rate)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13064"}},{"Del":{"text":"\t\t-- Check function parameters","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13095"}},{"Del":{"text":"\t\tif type(samples) ~= \"table\" or","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13128"}},{"Del":{"text":"\t\t\ttype(sample_rate) ~= \"number\" or sample_rate ~= math.floor(sample_rate) or sample_rate < 2 then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13227"}},{"Del":{"text":"\t\t\terror(\"samples table and sample rate expected\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13281"}},{"Del":{"text":"\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13287"}},{"Del":{"text":"\t\tlocal samples_n = #samples","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13316"}},{"Del":{"text":"\t\tif samples_n ~= math.ceil_pow2(samples_n) then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13365"}},{"Del":{"text":"\t\t\terror(\"table size has to be a power of two\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13416"}},{"Del":{"text":"\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13422"}},{"Del":{"text":"\t\tfor _, sample in ipairs(samples) do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13460"}},{"Del":{"text":"\t\t\tif type(sample) ~= \"number\" then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13496"}},{"Del":{"text":"\t\t\t\terror(\"table has only to contain numbers\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13546"}},{"Del":{"text":"\t\t\telseif sample > 1 or sample < -1 then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13587"}},{"Del":{"text":"\t\t\t\terror(\"numbers should be normalized / limited to -1 until 1\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13656"}},{"Del":{"text":"\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13663"}},{"Del":{"text":"\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13669"}},{"Del":{"text":"\t\t-- Complex numbers","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13690"}},{"Del":{"text":"\t\tlocal complex_t","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13708"}},{"Del":{"text":"\t\tdo","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13713"}},{"Del":{"text":"\t\t\tlocal complex = {}","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13735"}},{"Del":{"text":"\t\t\tlocal function tocomplex(a, b)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13769"}},{"Del":{"text":"\t\t\t\tif getmetatable(b) ~= complex then return a, {r = b, i = 0}","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13833"}},{"Del":{"text":"\t\t\t\telseif getmetatable(a) ~= complex then return {r = a, i = 0}, b","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13901"}},{"Del":{"text":"\t\t\t\telse return a, b end","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13926"}},{"Del":{"text":"\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13933"}},{"Del":{"text":"\t\t\tcomplex.__add = function(a, b)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:13967"}},{"Del":{"text":"\t\t\t\tlocal c1, c2 = tocomplex(a, b)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14002"}},{"Del":{"text":"\t\t\t\treturn setmetatable({r = c1.r + c2.r, i = c1.i + c2.i}, complex)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14071"}},{"Del":{"text":"\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14078"}},{"Del":{"text":"\t\t\tcomplex.__sub = function(a, b)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14112"}},{"Del":{"text":"\t\t\t\tlocal c1, c2 = tocomplex(a, b)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14147"}},{"Del":{"text":"\t\t\t\treturn setmetatable({r = c1.r - c2.r, i = c1.i - c2.i}, complex)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14216"}},{"Del":{"text":"\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14223"}},{"Del":{"text":"\t\t\tcomplex.__mul = function(a, b)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14257"}},{"Del":{"text":"\t\t\t\tlocal c1, c2 = tocomplex(a, b)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14292"}},{"Del":{"text":"\t\t\t\treturn setmetatable({r = c1.r * c2.r - c1.i * c2.i, i = c1.r * c2.i + c1.i * c2.r}, complex)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14389"}},{"Del":{"text":"\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14396"}},{"Del":{"text":"\t\t\tcomplex.__index = complex","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14425"}},{"Del":{"text":"\t\t\tcomplex_t = function(r, i)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14455"}},{"Del":{"text":"\t\t\t\treturn setmetatable({r = r, i = i}, complex)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14504"}},{"Del":{"text":"\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14511"}},{"Del":{"text":"\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14517"}},{"Del":{"text":"\t\tlocal function polar(theta)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14547"}},{"Del":{"text":"\t\t\treturn complex_t(math.cos(theta), math.sin(theta))","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14601"}},{"Del":{"text":"\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14607"}},{"Del":{"text":"\t\tlocal function magnitude(c)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14637"}},{"Del":{"text":"\t\t\treturn math.sqrt(c.r^2 + c.i^2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14672"}},{"Del":{"text":"\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14678"}},{"Del":{"text":"\t\t-- Fast Fourier Transform","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14706"}},{"Del":{"text":"\t\tlocal function fft(x)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14730"}},{"Del":{"text":"\t\t\t-- Check recursion break","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14758"}},{"Del":{"text":"\t\t\tlocal N = x.n","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14775"}},{"Del":{"text":"\t\t\tif N > 1 then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14792"}},{"Del":{"text":"\t\t\t\t-- Divide","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14806"}},{"Del":{"text":"\t\t\t\tlocal even, odd = {n = 0}, {n = 0}","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14845"}},{"Del":{"text":"\t\t\t\tfor i=1, N, 2 do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14866"}},{"Del":{"text":"\t\t\t\t\teven.n = even.n + 1","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14891"}},{"Del":{"text":"\t\t\t\t\teven[even.n] = x[i]","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14916"}},{"Del":{"text":"\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14924"}},{"Del":{"text":"\t\t\t\tfor i=2, N, 2 do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14945"}},{"Del":{"text":"\t\t\t\t\todd.n = odd.n + 1","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14968"}},{"Del":{"text":"\t\t\t\t\todd[odd.n] = x[i]","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14991"}},{"Del":{"text":"\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:14999"}},{"Del":{"text":"\t\t\t\t-- Conquer","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15014"}},{"Del":{"text":"\t\t\t\tfft(even)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15028"}},{"Del":{"text":"\t\t\t\tfft(odd)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15041"}},{"Del":{"text":"\t\t\t\t--Combine","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15055"}},{"Del":{"text":"\t\t\t\tlocal t","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15067"}},{"Del":{"text":"\t\t\t\tfor k = 1, N/2 do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15089"}},{"Del":{"text":"\t\t\t\t\tt = polar(-2 * math.pi * (k-1) / N) * odd[k]","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15139"}},{"Del":{"text":"\t\t\t\t\tx[k] = even[k] + t","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15163"}},{"Del":{"text":"\t\t\t\t\tx[k+N/2] = even[k] - t","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15191"}},{"Del":{"text":"\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15199"}},{"Del":{"text":"\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15206"}},{"Del":{"text":"\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15212"}},{"Del":{"text":"\t\t-- Numbers to complex numbers","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15244"}},{"Del":{"text":"\t\tlocal data = {n = samples_n}","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15275"}},{"Del":{"text":"\t\tfor i = 1, data.n do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15298"}},{"Del":{"text":"\t\t\tdata[i] = complex_t(samples[i], 0)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15336"}},{"Del":{"text":"\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15342"}},{"Del":{"text":"\t\t-- Process FFT","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15359"}},{"Del":{"text":"\t\tfft(data)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15371"}},{"Del":{"text":"\t\t-- Complex numbers to numbers","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15403"}},{"Del":{"text":"\t\tfor i = 1, data.n do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15426"}},{"Del":{"text":"\t\t\tdata[i] = magnitude(data[i])","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15458"}},{"Del":{"text":"\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15464"}},{"Del":{"text":"\t\t-- Calculate ordered frequencies","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15499"}},{"Del":{"text":"\t\tlocal frequencies, frequency_sum, sample_rate_half = {n = data.n / 2}, 0, sample_rate / 2","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15591"}},{"Del":{"text":"\t\tfor i=1, frequencies.n do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15619"}},{"Del":{"text":"\t\t\tfrequency_sum = frequency_sum + data[i]","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15662"}},{"Del":{"text":"\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15668"}},{"Del":{"text":"\t\tif frequency_sum > 0 then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15696"}},{"Del":{"text":"\t\t\tfor i=1, frequencies.n do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15725"}},{"Del":{"text":"\t\t\t\tfrequencies[i] = {freq = (i-1) / (frequencies.n-1) * sample_rate_half, weight = data[i] / frequency_sum}","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15834"}},{"Del":{"text":"\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15841"}},{"Del":{"text":"\t\telse","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15848"}},{"Del":{"text":"\t\t\tfrequencies[1] = {freq = 0, weight = 1}","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15891"}},{"Del":{"text":"\t\t\tfor i=2, frequencies.n do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:15920"}},{"Del":{"text":"\t\t\t\tfrequencies[i] = {freq = (i-1) / (frequencies.n-1) * sample_rate_half, weight = 0}","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16007"}},{"Del":{"text":"\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16014"}},{"Del":{"text":"\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16020"}},{"Del":{"text":"\t\t-- Return frequencies getter","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16051"}},{"Del":{"text":"\t\treturn {","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16062"}},{"Del":{"text":"\t\t\tget_frequencies = function()","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16094"}},{"Del":{"text":"\t\t\t\tlocal out = {n = frequencies.n}","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16130"}},{"Del":{"text":"\t\t\t\tfor i=1, frequencies.n do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16160"}},{"Del":{"text":"\t\t\t\t\tout[i] = {freq = frequencies[i].freq, weight = frequencies[i].weight}","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16235"}},{"Del":{"text":"\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16243"}},{"Del":{"text":"\t\t\t\treturn out","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16258"}},{"Del":{"text":"\t\t\tend,","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16266"}},{"Del":{"text":"\t\t\tget_frequency_weight = function(freq)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16307"}},{"Del":{"text":"\t\t\t\tif type(freq) ~= \"number\" or freq < 0 or freq > sample_rate_half then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16381"}},{"Del":{"text":"\t\t\t\t\terror(\"valid frequency expected\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16423"}},{"Del":{"text":"\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16431"}},{"Del":{"text":"\t\t\t\tfor i, frequency in ipairs(frequencies) do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16478"}},{"Del":{"text":"\t\t\t\t\tif frequency.freq == freq then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16514"}},{"Del":{"text":"\t\t\t\t\t\treturn frequency.weight","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16544"}},{"Del":{"text":"\t\t\t\t\telseif frequency.freq > freq then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16583"}},{"Del":{"text":"\t\t\t\t\t\tlocal frequency_last = frequencies[i-1]","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16629"}},{"Del":{"text":"\t\t\t\t\t\treturn (freq - frequency_last.freq) / (frequency.freq - frequency_last.freq) * (frequency.weight - frequency_last.weight) + frequency_last.weight","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16781"}},{"Del":{"text":"\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16790"}},{"Del":{"text":"\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16798"}},{"Del":{"text":"\t\t\tend,","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16806"}},{"Del":{"text":"\t\t\tget_frequency_range_weight = function(freq_min, freq_max)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16867"}},{"Del":{"text":"\t\t\t\tif type(freq_min) ~= \"number\" or freq_min < 0 or freq_min > sample_rate_half or","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:16951"}},{"Del":{"text":"\t\t\t\t\ttype(freq_max) ~= \"number\" or freq_max < 0 or freq_max > sample_rate_half or","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17033"}},{"Del":{"text":"\t\t\t\t\tfreq_min > freq_max then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17063"}},{"Del":{"text":"\t\t\t\t\terror(\"valid frequencies expected\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17107"}},{"Del":{"text":"\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17115"}},{"Del":{"text":"\t\t\t\tlocal weight_sum = 0","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17140"}},{"Del":{"text":"\t\t\t\tfor _, frequency in ipairs(frequencies) do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17187"}},{"Del":{"text":"\t\t\t\t\tif frequency.freq >= freq_min and frequency.freq <= freq_max then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17258"}},{"Del":{"text":"\t\t\t\t\t\tweight_sum = weight_sum + frequency.weight","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17307"}},{"Del":{"text":"\t\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17316"}},{"Del":{"text":"\t\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17324"}},{"Del":{"text":"\t\t\t\treturn weight_sum","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17346"}},{"Del":{"text":"\t\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17353"}},{"Del":{"text":"\t\t}","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17357"}},{"Del":{"text":"\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17362"}}]}},{"Edit":{"inode":{"change":2,"pos":1},"path":"wav.lua","line":139,"atom":{"EdgeMap":{"edges":[{"previous":"BLOCK","flag":"BLOCK | DELETED","from":{"change":2,"pos":17365},"to":{"change":2,"start":17365,"end":19162},"introduced_by":2}],"inode":{"change":2,"pos":1}}},"contents":[{"Del":{"text":"","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17365"}},{"Del":{"text":"--[[","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17370"}},{"Del":{"text":"\tRounds up number to power of 2.","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17403"}},{"Del":{"text":"]]","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17406"}},{"Del":{"text":"function math.ceil_pow2(x)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17433"}},{"Del":{"text":"\tif type(x) ~= \"number\" then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17462"}},{"Del":{"text":"\t\terror(\"number expected\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17492"}},{"Del":{"text":"\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17497"}},{"Del":{"text":"\tlocal p = 2","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17510"}},{"Del":{"text":"\twhile p < x do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17526"}},{"Del":{"text":"\t\tp = p * 2","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17538"}},{"Del":{"text":"\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17543"}},{"Del":{"text":"\treturn p","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17553"}},{"Del":{"text":"end","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17557"}},{"Del":{"text":"","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17558"}},{"Del":{"text":"--[[","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17563"}},{"Del":{"text":"\tRounds down number to power of 2.","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17598"}},{"Del":{"text":"]]","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17601"}},{"Del":{"text":"function math.floor_pow2(x)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17629"}},{"Del":{"text":"\tif type(x) ~= \"number\" then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17658"}},{"Del":{"text":"\t\terror(\"number expected\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17688"}},{"Del":{"text":"\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17693"}},{"Del":{"text":"\tlocal y = math.ceil_pow2(x)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17722"}},{"Del":{"text":"\treturn x == y and x or y / 2","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17752"}},{"Del":{"text":"end","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17756"}},{"Del":{"text":"","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17757"}},{"Del":{"text":"--[[","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17762"}},{"Del":{"text":"\tRounds number nearest to power of 2.","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17800"}},{"Del":{"text":"]]","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17803"}},{"Del":{"text":"function math.round_pow2(x)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17831"}},{"Del":{"text":"\tif type(x) ~= \"number\" then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17860"}},{"Del":{"text":"\t\terror(\"number expected\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17890"}},{"Del":{"text":"\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17895"}},{"Del":{"text":"\tlocal min, max = math.floor_pow2(x), math.ceil_pow2(x)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:17951"}},{"Del":{"text":"\treturn (x - min) / (max-min) < 0.5 and min or max","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18002"}},{"Del":{"text":"end","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18006"}},{"Del":{"text":"","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18007"}},{"Del":{"text":"--[[","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18012"}},{"Del":{"text":"\tConverts samples into an ASS (Advanced Substation Alpha) subtitle shape code.","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18091"}},{"Del":{"text":"]]","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18094"}},{"Del":{"text":"function audio_to_ass(samples, wave_width, wave_height_scale, wave_thickness)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18172"}},{"Del":{"text":"\t-- Check function parameters","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18202"}},{"Del":{"text":"\tif type(samples) ~= \"table\" or not samples[1] or","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18252"}},{"Del":{"text":"\t\ttype(wave_width) ~= \"number\" or wave_width <= 0 or","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18305"}},{"Del":{"text":"\t\ttype(wave_height_scale) ~= \"number\" or","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18346"}},{"Del":{"text":"\t\ttype(wave_thickness) ~= \"number\" or wave_thickness <= 0 then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18409"}},{"Del":{"text":"\t\terror(\"samples table, positive wave width, height scale and thickness expected\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18495"}},{"Del":{"text":"\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18500"}},{"Del":{"text":"\tfor _, sample in ipairs(samples) do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18537"}},{"Del":{"text":"\t\tif type(sample) ~= \"number\" then","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18572"}},{"Del":{"text":"\t\t\terror(\"table has only to contain numbers\", 2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18621"}},{"Del":{"text":"\t\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18627"}},{"Del":{"text":"\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18632"}},{"Del":{"text":"\t-- Better fitting forms of known variables for most use","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18689"}},{"Del":{"text":"\tlocal thick2, samples_n = wave_thickness / 2, #samples","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18745"}},{"Del":{"text":"\t-- Build shape","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18761"}},{"Del":{"text":"\tlocal shape = string.format(\"m 0 %d l\", samples[1] * wave_height_scale - thick2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18843"}},{"Del":{"text":"\tfor i=2, samples_n do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18866"}},{"Del":{"text":"\t\tshape = string.format(\"%s %d %d\", shape, (i-1) / (samples_n-1) * wave_width, samples[i] * wave_height_scale - thick2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18986"}},{"Del":{"text":"\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:18991"}},{"Del":{"text":"\tfor i=samples_n, 1, -1 do","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:19018"}},{"Del":{"text":"\t\tshape = string.format(\"%s %d %d\", shape, (i-1) / (samples_n-1) * wave_width, samples[i] * wave_height_scale + thick2)","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:19138"}},{"Del":{"text":"\tend","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:19143"}},{"Del":{"text":"\treturn shape","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:19157"}},{"Del":{"text":"end","pos":"5UCLBIFY4LTDA2EGR2SNK4Z7YPJ5IC3CSBYZ6ZYQQ7KYCRLSIZ4QC:19161"}}]}}],"owner":"akkartik","repo":"spell-cards.love","login":null}

…

Dependencies

Change contents

Review