Zazama / node-id3

import { FrameOptions, FRAME_OPTIONS } from './definitions/FrameOptions'

import { isKeyOf } from './util'

export function getFrameOptions(frameIdentifier: string): FrameOptions {

    if (isKeyOf(frameIdentifier, FRAME_OPTIONS)) {

        return FRAME_OPTIONS[frameIdentifier]

    }

    return {

        multiple: false

    }

}

export function processUnsynchronisedBuffer(buffer: Buffer) {

    const newDataArr = []

    if (buffer.length > 0) {

        newDataArr.push(buffer[0])

    }

    for(let i = 1; i < buffer.length; i++) {

        if (buffer[i - 1] === 0xFF && buffer[i] === 0x00) {

            continue

        }

        newDataArr.push(buffer[i])

    }

    return Buffer.from(newDataArr)

}