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Fixed linting

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MCJack123 2024-08-08 00:42:19 -04:00
parent b04914065a
commit 3686d2ddc9
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GPG Key ID: 1D99413F734AA894
2 changed files with 9 additions and 9 deletions
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projects/core/src/main/resources/data/computercraft/lua/rom/modules/main/cc/audio/wav.lua
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@ -14,7 +14,7 @@ This function takes in the binary data from a WAV file, and outputs a more
usable table format with all the metadata and file audio inside. It also has a usable table format with all the metadata and file audio inside. It also has a
[`readWAVFile`] function to simplify reading from a single file. [`readWAVFile`] function to simplify reading from a single file.
@see cc.audio.play To play the chunk decoded by this module. @see speaker.playAudio To play the chunks decoded by this module.
@since 1.113.0 @since 1.113.0
@usage Reads "data/example.wav" into a table, prints its codec, sample rate, @usage Reads "data/example.wav" into a table, prints its codec, sample rate,
and length in seconds, and plays the audio on a speaker. and length in seconds, and plays the audio on a speaker.
@ -53,7 +53,7 @@ local wavExtensible = {
alaw = uuidBytes "06000000-0000-1000-8000-00aa00389b71", alaw = uuidBytes "06000000-0000-1000-8000-00aa00389b71",
ulaw = uuidBytes "07000000-0000-1000-8000-00aa00389b71", ulaw = uuidBytes "07000000-0000-1000-8000-00aa00389b71",
adpcm = uuidBytes "11000000-0000-1000-8000-00aa00389b71", adpcm = uuidBytes "11000000-0000-1000-8000-00aa00389b71",
pcm_float = uuidBytes "03000000-0000-1000-8000-00aa00389b71" pcm_float = uuidBytes "03000000-0000-1000-8000-00aa00389b71",
} }
local wavMetadata = { local wavMetadata = {
@ -77,7 +77,7 @@ local wavMetadata = {
IGNR = "genre", IGNR = "genre",
ICMT = "comment", ICMT = "comment",
ICOP = "copyright", ICOP = "copyright",
ILNG = "language" ILNG = "language",
} }
--[[- Read WAV data into a table. --[[- Read WAV data into a table.
@ -99,13 +99,13 @@ Channel data is in the same format as `speaker.playAudio` takes: 8-bit signed nu
]] ]]
local function readWAV(data) local function readWAV(data)
expect(1, data, "string") expect(1, data, "string")
local bitDepth, length, dataType, blockAlign, coefficients local bitDepth, dataType, blockAlign
local temp, pos = str_unpack("c4", data) local temp, pos = str_unpack("c4", data)
if temp ~= "RIFF" then error("bad argument #1 (not a WAV file)", 2) end if temp ~= "RIFF" then error("bad argument #1 (not a WAV file)", 2) end
pos = pos + 4 pos = pos + 4
temp, pos = str_unpack("c4", data, pos) temp, pos = str_unpack("c4", data, pos)
if temp ~= "WAVE" then error("bad argument #1 (not a WAV file)", 2) end if temp ~= "WAVE" then error("bad argument #1 (not a WAV file)", 2) end
local retval = {metadata = {}} local retval = { metadata = {} }
while pos <= #data do while pos <= #data do
local size local size
temp, pos = str_unpack("c4", data, pos) temp, pos = str_unpack("c4", data, pos)
@ -159,7 +159,7 @@ local function readWAV(data)
return table.unpack(res) return table.unpack(res)
end end
else else
local format = (dataType == "unsigned" and "I" .. (bitDepth / 8) or (dataType == "signed" and "i" .. (bitDepth / 8) or "f")) local format = dataType == "unsigned" and "I" .. (bitDepth / 8) or (dataType == "signed" and "i" .. (bitDepth / 8) or "f")
local transform local transform
if dataType == "unsigned" then if dataType == "unsigned" then
function transform(n) return n - 128 end function transform(n) return n - 128 end
@ -172,7 +172,7 @@ local function readWAV(data)
end end
function retval.read(samples) function retval.read(samples)
if pos > #data then return nil end if pos > #data then return nil end
local chunk = {("<" .. format:rep(math.min(samples * channels, (#data - pos + 1) / (bitDepth / 8)))):unpack(data, pos)} local chunk = { ("<" .. format:rep(math.min(samples * channels, (#data - pos + 1) / (bitDepth / 8)))):unpack(data, pos) }
pos = table.remove(chunk) pos = table.remove(chunk)
local res = {} local res = {}
for i = 1, channels do for i = 1, channels do
@ -221,4 +221,4 @@ local function readWAVFile(path)
return readWAV(data) return readWAV(data)
end end
return {readWAV = readWAV, readWAVFile = readWAVFile} return { readWAV = readWAV, readWAVFile = readWAVFile }