elpatron
975c7a2e40
Record short E2E-encrypted audio attachments from the live log, link them to events via __live:voice markers, and play them back in the stream and chronological event table. Co-authored-by: Cursor <cursoragent@cursor.com>
40 lines
1.1 KiB
TypeScript
40 lines
1.1 KiB
TypeScript
export const VOICE_MEMO_MAX_DURATION_SEC = 60
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export const VOICE_MEMO_MAX_BLOB_BYTES = 800_000
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const MIME_CANDIDATES = [
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'audio/webm;codecs=opus',
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'audio/webm',
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'audio/mp4',
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'audio/ogg;codecs=opus'
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]
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export function pickMediaRecorderMimeType(): string | undefined {
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if (typeof MediaRecorder === 'undefined') return undefined
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for (const mime of MIME_CANDIDATES) {
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if (MediaRecorder.isTypeSupported(mime)) return mime
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}
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return undefined
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}
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export function blobToAudioDataUrl(blob: Blob): Promise<string> {
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return new Promise((resolve, reject) => {
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const reader = new FileReader()
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reader.onload = () => resolve(String(reader.result))
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reader.onerror = () => reject(new Error('audio_read_failed'))
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reader.readAsDataURL(blob)
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})
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}
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export function formatVoiceDuration(seconds: number): string {
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const s = Math.max(0, Math.floor(seconds))
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const m = Math.floor(s / 60)
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const r = s % 60
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return `${m}:${String(r).padStart(2, '0')}`
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}
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export function assertVoiceMemoBlobSize(blob: Blob): void {
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if (blob.size > VOICE_MEMO_MAX_BLOB_BYTES) {
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throw new Error('VOICE_MEMO_TOO_LARGE')
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}
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}
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