Lua iTAG Script

itagID.lua

local ansi = {
    reset  = "\27[0;0m" ,
    black  = "\27[0;30m",
    red    = "\27[0;31m",
    green  = "\27[0;32m",
    yellow = "\27[0;33m",
    blue   = "\27[0;34m",
    purple = "\27[0;35m",
    cyan   = "\27[0;36m",
    white  = "\27[0;37m",
    bold   = "\27[1m",
}

if not arg[1] then print(ansi.red.."No itag passed"..ansi.reset); return 0 end

local newArg = {}
local seen = {}

-- Argument deduplicator-inator 3000
for _, value in ipairs(arg) do
    if not seen[value] then
        newArg[#newArg + 1] = value  -- Add to output table if not seen before
        seen[value] = true           -- Mark as seen
    end
end

-- Remove non-number arguments
for i=#newArg, 1, -1 do
    if tonumber(newArg[i]) == nil then
        table.remove(newArg,i)
    end 
end

-- Sort the table for showing tags in ascending order
table.sort(newArg, function(a, b)
    return tonumber(a) < tonumber(b)
end)

seen = nil -- De-reference table

local vidFormats = {
--  [id ] = {resolution,codec,container,HFR,High (bitrate),HDR}
    [702] = {4320,"AV1","MP4",true,true,true},
    [701] = {2160,"AV1","MP4",true,true,true},
    [700] = {1440,"AV1","MP4",true,true,true},
    [699] = {1080,"AV1","MP4",true,true,true},
    [698] = {720 ,"AV1","MP4",true,true,true},
    [697] = {480 ,"AV1","MP4",true,true,true},
    [696] = {360 ,"AV1","MP4",true,true,true},
    [695] = {240 ,"AV1","MP4",true,true,true},
    [694] = {144 ,"AV1","MP4",true,true,true},
    [402] = {4320,"AV1","MP4",true,false,"High Dynamic Range possible"},
    [571] = {4320,"AV1","MP4",true,false,"High Dynamic Range possible"},
    [401] = {2160,"AV1","MP4",true,false,"High Dynamic Range possible"},
    [400] = {1440,"AV1","MP4",true,false,"High Dynamic Range possible"},
    [721] = {1080,"AV1","MP4",true,false,"High Dynamic Range possible"},
    [399] = {1080,"AV1","MP4",true,false,"High Dynamic Range possible"},
    [398] = {720 ,"AV1","MP4",true,false,"High Dynamic Range possible"},
    [397] = {480 ,"AV1","MP4",false,false,"High Dynamic Range possible"},
    [396] = {360 ,"AV1","MP4",false,false,"High Dynamic Range possible"},
    [395] = {240 ,"AV1","MP4",false,false,"High Dynamic Range possible"},
    [394] = {144 ,"AV1","MP4",false,false,"High Dynamic Range possible"},
    [337] = {2160,"VP9.2","WebM",true,false,true},
    [336] = {1440,"VP9.2","WebM",true,false,true},
    [335] = {1080,"VP9.2","WebM",true,false,true},
    [334] = {720 ,"VP9.2","WebM",true,false,true},
    [333] = {480 ,"VP9.2","WebM",true,false,true},
    [332] = {360 ,"VP9.2","WebM",true,false,true},
    [331] = {240 ,"VP9.2","WebM",true,false,true},
    [330] = {144 ,"VP9.2","WebM",true,false,true},
    [272] = {4320,"VP9","WebM",true,false,false},
    [315] = {2160,"VP9","WebM",true,false,false},
    [308] = {1440,"VP9","WebM",true,false,false},
    [303] = {1080,"VP9","WebM",true,false,false},
    [302] = {720 ,"VP9","WebM",true,false,false},
    [612] = {720 ,"VP9","WebM",true,false,false},
    [313] = {2160,"VP9","WebM",false,false,false},
    [271] = {1440,"VP9","WebM",false,false,false},
    [248] = {1080,"VP9","WebM",false,false,false},
    [356] = {1080,"VP9","WebM",false,false,false},
    [247] = {720 ,"VP9","WebM",false,false,false},
    [244] = {480 ,"VP9","WebM",false,false,false},
    [243] = {360 ,"VP9","WebM",false,false,false},
    [242] = {240 ,"VP9","WebM",false,false,false},
    [278] = {144 ,"VP9","WebM",false,false,false},
    [598] = {144 ,"VP9","WebM",false,false,false},
    [305] = {2160,"H.264","MP4",true,false,false},
    [304] = {1440,"H.264","MP4",true,false,false},
    [299] = {1080,"H.264","MP4",true,false,false},
    [298] = {720 ,"H.264","MP4",true,false,false},
    [138] = {4320,"H.264","MP4",false,false,false},
    [266] = {2160,"H.264","MP4",false,false,false},
    [264] = {1440,"H.264","MP4",false,false,false},
    [137] = {1080,"H.264","MP4",false,false,false},
    [136] = {720 ,"H.264","MP4",false,false,false},
    [214] = {720 ,"H.264","MP4",false,false,false},
    [135] = {480 ,"H.264","MP4",false,false,false},
    [134] = {360 ,"H.264","MP4",false,false,false},
    [133] = {240 ,"H.264","MP4",false,false,false},
    [160] = {144 ,"H.264","MP4",false,false,false},
    [597] = {144 ,"H.264","MP4",false,false,false},
    [170] = {1080,"VP8","WebM",false,false,false},
    [169] = {720 ,"VP8","WebM",false,false,false},
    [168] = {480 ,"VP8","WebM",false,false,false},
    [167] = {360 ,"VP8","WebM",false,false,false},
    [787] = {608 ,"AV1","WebM",false,false,false},
    [788] = {608 ,"AV1","MP4",false,false,false},
    [780] = {608 ,"VP9","WebM",false,false,false},
    [779] = {608 ,"VP9","WebM",false,false,false},
    [228] = {72,"AVC","MP4",ansi.red.."VERY Low Framerate (6fps)"..ansi.reset,false,false},
}

local audioFormats = {
--  [id ] = {container,codec,bitrate Kbps,VBR,channels}
    [139] = {"MP4","AAC (HE v1)",48,false,"Stereo (2)"},
    [140] = {"MP4","AAC (LC)",128,false,"Stereo (2)"},
    [141] = {"MP4","AAC (LC)",256,false,"Stereo (2)"},
    [249] = {"WebM","Opus",50,true,"Stereo (2)"},
    [250] = {"WebM","Opus",70,true,"Stereo (2)"},
    [251] = {"WebM","Opus",128,true,"Stereo (2)"},
    [256] = {"MP4","AAC (HE v1)",192,false,"Surround (5.1)"},
    [258] = {"MP4","AAC (LC)",384,false,"Surround (5.1)"},
    [325] = {"MP4","DTSE (DTS Express)",384,false,"Surround (5.1)"},
    [327] = {"MP4","AAC (LC)",256,false,"Surround (5.1)"},
    [328] = {"MP4","EAC3",384,false,"Surround (5.1)"},
    [338] = {"WebM","Opus",480,true,"Ambisonic (4)"},
    [380] = {"MP4","AC3",384,false,"Surround (5.1)"},
    [599] = {"MP4","AAC (HE v1)",30,false,"Stereo (2)"},
    [600] = {"WebM","Opus",35,true,"Stereo (2)"},
    [773] = {"MP4","IAMF (Opus)",900,true,"Binaural (7.1.4)"},
    [774] = {"WebM","Opus",256,true,"Stereo (2)"},
}

local legacyFormats = {
--  [id] = {container,video codec,video res,audio codec,audio bitrate Kbps,channels}
    [5 ] = {"FLV","H.263 (Sorenson Spark)","240p (4:3)","MP3","64 Kbps","Mono (1)"},
    [6 ] = {"FLV","H.263 (Sorenson Spark)","270p (4:3)","MP3","64 Kbps","Mono (1)"},
    [13] = {"3GP","MPEG-4 (Simple, L0)","144p","AAC (LC)","Unknown","Mono (1)"},
    [17] = {"3GP","MPEG-4 (Simple, L0)","144p","AAC (LC)","24 Kbps","Mono (1)"},
    [18] = {"MP4","H.264 (Main, L3.0)","360p","AAC (LC)","96 Kbps (most) / 128 Kbps (some)","Stereo (2)"},
    [22] = {"MP4","H.264 (High, L3.1)","720p","AAC (LC)","128 Kbps","Stereo (2)"},
    [34] = {"FLV","H.264 (Main, L3.0)","360p","AAC","128 Kbps","Stereo (2)"},
    [35] = {"FLV","H.264 (Main, L3.0)","480p","AAC","128 Kbps","Stereo (2)"},
    [36] = {"3GP","MPEG-4 (Simple, L0)","144p","AAC (LC)","24 Kbps","Mono (1)"},
    [37] = {"MP4","H.264 (High, L4.0)","1080p","AAC (LC)","128 Kbps","Stereo (2)"},
    [38] = {"MP4","H.264","3072p","AAC","192 Kbps","Stereo (2)"},
    [43] = {"WebM","VP8","360p","Vorbis","128 Kbps","Stereo (2)"},
    [44] = {"WebM","VP8","480p","Vorbis","128 Kbps","Stereo (2)"},
    [45] = {"WebM","VP8","720p","Vorbis","192 Kbps","Stereo (2)"},
    [46] = {"WebM","VP8","1080p","Vorbis","192 Kbps","Stereo (2)"},
    [59] = {"MP4","H.264 (Main, L3.1)","480p","AAC (LC)","128 Kbps","Stereo (2)"},
    [78] = {"MP4","H.264","480p","AAC","128 Kbps","Stereo (2)"},
}

local liveFormats = {
--  [id ] = {container,video codec,video res,audio codec,audio bitrate Kbps,HFR}
    [91 ] = {"MPEG-TS (HLS)","H.264 (Baseline, L1.1)",144,"AAC (HE v1)",48,false},
    [92 ] = {"MPEG-TS (HLS)","H.264 (Main, L2.1)",240,"AAC (LC)",48,false},
    [93 ] = {"MPEG-TS (HLS)","H.264 (Main, L3.0)",360,"AAC (LC)",128,false},
    [94 ] = {"MPEG-TS (HLS)","H.264 (Main, L3.1)",480,"AAC (LC)",128,false},
    [95 ] = {"MPEG-TS (HLS)","H.264 (Main, L3.1)",720,"AAC (LC)",128,false},
    [96 ] = {"MPEG-TS (HLS)","H.264 (High, L4.0)",1080,"AAC (LC)",128,false},
    [300] = {"MPEG-TS (HLS)","H.264 (Main, L3.2)",720,"AAC (LC)",128,true},
    [301] = {"MPEG-TS (HLS)","H.264 (High, L4.2)",1080,"AAC (LC)",128,true},
}

function checkItag(itag)
    local argID = tonumber(itag)
    print(ansi.bold.."   --+ "..tostring(itag).." +--"..ansi.reset)
    if not argID then print(ansi.red.."Input is not a valid number"..ansi.reset); return 0 end

    if vidFormats[argID] then
        print("Type:          DASH Video")
        local curr = vidFormats[argID]
        
        print("Resolution:    "..curr[1].."p")
        print("Codec:         "..curr[2])
        print("Container:     "..curr[3])

        if type(curr[4]) == "boolean" then
            if curr[4] then
                print(ansi.green.."High Frame Rate (≤60fps)"..ansi.reset)
            else
                print(ansi.yellow.."Standard Frame Rate (≤30fps)"..ansi.reset)
            end
        else
            print(curr[4])
        end

        if curr[5] then
            print(ansi.green.."High Bitrate (~4x)"..ansi.reset)
        else
            print(ansi.yellow.."Standard Bitrate"..ansi.reset)
        end

        if type(curr[6]) == "boolean" then
            if curr[6] then
                print(ansi.green.."High Dynamic Range"..ansi.reset)
            else
                print(ansi.yellow.."Standard Dynamic Range"..ansi.reset)
            end
        else
            print(ansi.yellow..curr[6]..ansi.reset)
        end

    elseif audioFormats[argID] then
        print("Type:          DASH Audio")
        local curr = audioFormats[argID]
        
        local btrstr = curr[3].." Kbps"
        if curr[4] then btrstr = "(VBR) ~" .. btrstr end
        print("Bitrate:       "..btrstr)
        print("Codec:         "..curr[2])
        print("Container:     "..curr[1])
        print("Channels:      "..curr[5])
    elseif legacyFormats[argID] then
        print("Type:          Legacy (non-DASH)")
        local curr = legacyFormats[argID]
        
        print("Container:     "..curr[1])
        print("Video Codec:   "..curr[2])
        print("Video Res.:    "..curr[3])
        print("Audio Codec:   "..curr[4])
        print("Audio Bitrate: "..curr[5])
        print("Channels:      "..curr[6])
    elseif liveFormats[argID] then
        print("Type:          Livestream (non-DASH)")
        local curr = liveFormats[argID]
        
        print("Container:     "..curr[1])
        print("Video Codec:   "..curr[2])
        print("Video Res.:    "..curr[3].."p")
        print("Audio Codec:   "..curr[4])
        print("Audio Bitrate: "..curr[5].." Kbps")
        
        if curr[6] then
            print(ansi.green.."High Frame Rate (≤60fps)"..ansi.reset)
        else
            print(ansi.yellow.."Standard Frame Rate (≤30fps)"..ansi.reset)
        end
    else
        print(ansi.red.."Invalid or Unsupported itag"..ansi.reset)
        print("You can check "..ansi.blue.."https://gist.github.com/MartinEesmaa/2f4b261cb90a47e9c41ba115a011a4aa"..ansi.reset.." for existing itags")
        return 0
    end
end

for i,tag in ipairs(newArg) do
    checkItag(tag)
    if i < #newArg then print() end
end

return 0

Example output:

$ luajit itagID.lua 169 300 301 399 400 96
   --+ 96 +--
Type:          Livestream (non-DASH)
Container:     MPEG-TS (HLS)
Video Codec:   H.264 (High, L4.0)
Video Res.:    1080p
Audio Codec:   AAC (LC)
Audio Bitrate: 128 Kbps
Standard Frame Rate (≤30fps)

   --+ 169 +--
Type:          DASH Video
Resolution:    720p
Codec:         VP8
Container:     WebM
Standard Frame Rate (≤30fps)
Standard Bitrate
Standard Dynamic Range

   --+ 300 +--
Type:          Livestream (non-DASH)
Container:     MPEG-TS (HLS)
Video Codec:   H.264 (Main, L3.2)
Video Res.:    720p
Audio Codec:   AAC (LC)
Audio Bitrate: 128 Kbps
High Frame Rate (≤60fps)

   --+ 301 +--
Type:          Livestream (non-DASH)
Container:     MPEG-TS (HLS)
Video Codec:   H.264 (High, L4.2)
Video Res.:    1080p
Audio Codec:   AAC (LC)
Audio Bitrate: 128 Kbps
High Frame Rate (≤60fps)

   --+ 399 +--
Type:          DASH Video
Resolution:    1080p
Codec:         AV1
Container:     MP4
High Frame Rate (≤60fps)
Standard Bitrate
High Dynamic Range possible

   --+ 400 +--
Type:          DASH Video
Resolution:    1440p
Codec:         AV1
Container:     MP4
High Frame Rate (≤60fps)
Standard Bitrate
High Dynamic Range possible

On the terminal it's colored it just doesn't show in GitHub markdown