feat(native): decode audio and mp3 encoder (#10490)

packages/frontend/native/index.d.ts

@@ -61,6 +61,11 @@ export declare class DocStoragePool {
   clearClocks(universalId: string): Promise<void>
 }
 
+export declare class Mp3Encoder {
+  constructor(options: EncodeOptions)
+  encode(input: Float32Array): Uint8Array
+}
+
 export declare class RecordingPermissions {
   audio: boolean
   screen: boolean
@@ -113,6 +118,42 @@ export declare class SqliteConnection {
   checkpoint(): Promise<void>
 }
 
+/**Enumeration of valid values for `set_brate` */
+export declare enum Bitrate {
+  /**8_000 */
+  Kbps8 = 8,
+  /**16_000 */
+  Kbps16 = 16,
+  /**24_000 */
+  Kbps24 = 24,
+  /**32_000 */
+  Kbps32 = 32,
+  /**40_000 */
+  Kbps40 = 40,
+  /**48_000 */
+  Kbps48 = 48,
+  /**64_000 */
+  Kbps64 = 64,
+  /**80_000 */
+  Kbps80 = 80,
+  /**96_000 */
+  Kbps96 = 96,
+  /**112_000 */
+  Kbps112 = 112,
+  /**128_000 */
+  Kbps128 = 128,
+  /**160_000 */
+  Kbps160 = 160,
+  /**192_000 */
+  Kbps192 = 192,
+  /**224_000 */
+  Kbps224 = 224,
+  /**256_000 */
+  Kbps256 = 256,
+  /**320_000 */
+  Kbps320 = 320
+}
+
 export interface Blob {
   key: string
   data: Uint8Array
@@ -127,6 +168,11 @@ export interface BlobRow {
   timestamp: Date
 }
 
+export declare function decodeAudio(buf: Uint8Array, destSampleRate?: number | undefined | null, filename?: string | undefined | null, signal?: AbortSignal | undefined | null): Promise<Float32Array>
+
+/** Decode audio file into a Float32Array */
+export declare function decodeAudioSync(buf: Uint8Array, destSampleRate?: number | undefined | null, filename?: string | undefined | null): Float32Array
+
 export interface DocClock {
   docId: string
   timestamp: Date
@@ -149,6 +195,14 @@ export interface DocUpdate {
   bin: Uint8Array
 }
 
+export interface EncodeOptions {
+  channels: number
+  quality?: Quality
+  bitrate?: Bitrate
+  sampleRate?: number
+  mode?: Mode
+}
+
 export interface InsertRow {
   docId?: string
   data: Uint8Array
@@ -163,6 +217,42 @@ export interface ListedBlob {
 
 export declare function mintChallengeResponse(resource: string, bits?: number | undefined | null): Promise<string>
 
+/** MPEG mode */
+export declare enum Mode {
+  Mono = 0,
+  Stereo = 1,
+  JointStereo = 2,
+  DualChannel = 3,
+  NotSet = 4
+}
+
+/**
+ *Possible quality parameter.
+ *From best(0) to worst(9)
+ */
+export declare enum Quality {
+  /**Best possible quality */
+  Best = 0,
+  /**Second best */
+  SecondBest = 1,
+  /**Close to best */
+  NearBest = 2,
+  /**Very nice */
+  VeryNice = 3,
+  /**Nice */
+  Nice = 4,
+  /**Good */
+  Good = 5,
+  /**Decent */
+  Decent = 6,
+  /**Okayish */
+  Ok = 7,
+  /**Almost worst */
+  SecondWorst = 8,
+  /**Worst */
+  Worst = 9
+}
+
 export interface SetBlob {
   key: string
   data: Uint8Array