@neurosity/sdk/dist/esm/api/bluetooth/utils/csvBufferToEpoch.js

Neurosity SDK

import { pipe, from } from "rxjs";
import { mergeMap, map } from "rxjs/operators";
import { epoch, addInfo } from "../../../utils/pipes";
const EPOCH_BUFFER_SIZE = 16;
const SAMPLING_RATE_FALLBACK = 256; // Crown's sampling rate
/**
 * @hidden
 */
export function csvBufferToEpoch(deviceInfo) {
    var _a;
    if (!(deviceInfo === null || deviceInfo === void 0 ? void 0 : deviceInfo.samplingRate)) {
        console.warn(`Didn't receive a sampling rate, defaulting to ${SAMPLING_RATE_FALLBACK}`);
    }
    return pipe(csvBufferToSamples(), epoch({
        duration: EPOCH_BUFFER_SIZE,
        interval: EPOCH_BUFFER_SIZE,
        samplingRate: (_a = deviceInfo === null || deviceInfo === void 0 ? void 0 : deviceInfo.samplingRate) !== null && _a !== void 0 ? _a : SAMPLING_RATE_FALLBACK
    }), addInfo({
        channelNames: deviceInfo.channelNames,
        samplingRate: deviceInfo.samplingRate
    }));
}
/**
 * @hidden
 */
export function csvBufferToSamples() {
    return pipe(mergeMap((samples) => from(samples)), map(([timestamp, marker, ...data]) => ({
        timestamp,
        data
    })));
}