Pick the best string to hand to Connection.setCallerDisplayName. Preference order: a real human name from FCM, then the bare URI user-part, then "Unk

Precompute the FFT-bin range covered by each of the NUM_BANDS log-spaced bands on a FIXED 1 kHz .. 16 kHz scale. Band edges: f(i) = F_LOW (F_HIGH / F_

Decide whether the device should be treated as "folded closed enough to hide the earpiece". Prefers the continuous hinge sensor when available; falls

Compute one 16-band frame (dB, quantised to bytes) from the samples accumulated in mSpecWin for the current 100 ms bin. Windowed real FFT, per-band

* @param {object} opts * @param {string} opts.server export server base URL (http://ip:port) * @param {string} opts.token auth key * @para

Derive a friendly display name from a SIP URI when the push payload does not carry from_display_name. Mirrors newContact() in app.js: 'john.doe@host'

* Phase 2 of the drain. Deletes the .read file. Safe to call * even if it doesn't exist. */

* Phase 1 of the drain. Atomically renames the current log file * to "<name>.read" and returns its contents. Any prior unacked * .read file

Emit a SylkDeepLink event with the URL so JS can navigate synchronously, bypassing react-native-linking's lifecycle- gated event timing. Mirrors emitS

Emits queued event if possible

Push raw 16-bit PCM bytes into the encoder. We keep dequeuing input buffers until all bytes are queued — MediaCodec input buffer capacity is implement

Iterative radix-2 Cooley–Tukey FFT, in place. Length must be a power of two (SPEC_FFT_N). No external dependency.

JS-friendly mode formatter. Returns the current AudioManager mode in "NAME(int)" form, e.g. "IN_COMMUNICATION(3)".

* Recursively calculates the total size of a folder in bytes.

Returns recent process-exit records newer than {@code sinceTimestampMs}. @param sinceTimestampMs only return exits with a timestamp strictly

* The original system Configuration.fontWeightAdjustment captured by * MainActivity.attachBaseContext BEFORE the activity neutralises it. *

Handle a parsed request, returns Promise<Buffer> (full HTTP response).

Handle deep links (sylk://, https://webrtc.sipthor.net) Forward to React Native via Linking / event emitter. Why we emit a custom event instead of re

Persist an incoming push message directly into sylk.db so the RN app finds it on the next chat open — no in-app payload fetch required. Mirrors the sc

* Install a process-wide uncaught-exception handler that records the * FULL stack trace through this logger (Logcat tag SYLK_APP + on-disk *

Read the in-app DND flag (privacy.dnd in accounts.settings JSON) for the given account. Returns false if the row is missing, the JSON is malformed, th