mirror of
https://github.com/Comfy-Org/ComfyUI_frontend.git
synced 2026-02-04 23:20:07 +00:00
5370700b8c
* knip: Don't ignore exports that are only used within a given file * knip: More pruning after rebase * knip: Vite plugin config fix * knip: vitest plugin config * knip: Playwright config, remove unnecessary ignores. * knip: Simplify project file enumeration. * knip: simplify the config file patterns ?(.optional_segment) * knip: tailwind v4 fix * knip: A little more, explain some of the deps. Should be good for this PR. * knip: remove unused disabling of classMembers. It's opt-in, which we should probably do. * knip: floating comments We should probably delete _one_ of these parallell trees, right? * knip: Add additional entrypoints * knip: Restore UserData that's exposed via the types for now. * knip: Add as an entry file even though knip says it's not necessary. * knip: re-export functions used by nodes (h/t @christian-byrne)
84 lines
2.4 KiB
TypeScript
84 lines
2.4 KiB
TypeScript
/** @knipIgnoreUnusedButUsedByCustomNodes */
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export function getFromFlacBuffer(buffer: ArrayBuffer): Record<string, string> {
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const dataView = new DataView(buffer)
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// Verify the FLAC signature
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const signature = String.fromCharCode(...new Uint8Array(buffer, 0, 4))
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if (signature !== 'fLaC') {
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console.error('Not a valid FLAC file')
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// @ts-expect-error fixme ts strict error
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return
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}
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// Parse metadata blocks
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let offset = 4
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let vorbisComment = null
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while (offset < dataView.byteLength) {
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const isLastBlock = dataView.getUint8(offset) & 0x80
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const blockType = dataView.getUint8(offset) & 0x7f
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const blockSize = dataView.getUint32(offset, false) & 0xffffff
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offset += 4
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if (blockType === 4) {
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// Vorbis Comment block type
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vorbisComment = parseVorbisComment(
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new DataView(buffer, offset, blockSize)
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)
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}
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offset += blockSize
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if (isLastBlock) break
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}
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// @ts-expect-error fixme ts strict error
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return vorbisComment
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}
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export function getFromFlacFile(file: File): Promise<Record<string, string>> {
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return new Promise((r) => {
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const reader = new FileReader()
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reader.onload = function (event) {
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// @ts-expect-error fixme ts strict error
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const arrayBuffer = event.target.result as ArrayBuffer
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r(getFromFlacBuffer(arrayBuffer))
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}
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reader.readAsArrayBuffer(file)
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})
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}
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// Function to parse the Vorbis Comment block
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function parseVorbisComment(dataView: DataView): Record<string, string> {
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let offset = 0
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const vendorLength = dataView.getUint32(offset, true)
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offset += 4
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// @ts-expect-error unused variable
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const vendorString = getString(dataView, offset, vendorLength)
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offset += vendorLength
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const userCommentListLength = dataView.getUint32(offset, true)
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offset += 4
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const comments = {}
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for (let i = 0; i < userCommentListLength; i++) {
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const commentLength = dataView.getUint32(offset, true)
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offset += 4
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const comment = getString(dataView, offset, commentLength)
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offset += commentLength
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const ind = comment.indexOf('=')
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const key = comment.substring(0, ind)
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// @ts-expect-error fixme ts strict error
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comments[key] = comment.substring(ind + 1)
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}
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return comments
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}
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function getString(dataView: DataView, offset: number, length: number): string {
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let string = ''
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for (let i = 0; i < length; i++) {
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string += String.fromCharCode(dataView.getUint8(offset + i))
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}
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return string
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}
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