@euirim/microsoft-cognitiveservices-speech-sdk/distrib/lib/src/sdk/Audio/AudioOutputStream.js

Microsoft Cognitive Services Speech SDK for JavaScript

"use strict";
// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT license.
var __extends = (this && this.__extends) || (function () {
    var extendStatics = function (d, b) {
        extendStatics = Object.setPrototypeOf ||
            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
        return extendStatics(d, b);
    };
    return function (d, b) {
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
var Guid_1 = require("../../../src/common/Guid");
var Exports_1 = require("../../common/Exports");
var AudioStreamFormat_1 = require("./AudioStreamFormat");
exports.bufferSize = 4096;
/**
 * Represents audio input stream used for custom audio input configurations.
 * @class AudioInputStream
 */
var AudioOutputStream = /** @class */ (function () {
    /**
     * Creates and initializes an instance.
     * @constructor
     */
    function AudioOutputStream() {
    }
    /**
     * Creates a memory backed PullAudioOutputStream with the specified audio format.
     * @member AudioInputStream.createPullStream
     * @function
     * @public
     * @param {AudioStreamFormat} format - The audio data format in which audio will be
     *        written to the push audio stream's write() method (currently only support 16 kHz 16bit mono PCM).
     * @returns {PullAudioOutputStream} The audio input stream being created.
     */
    AudioOutputStream.createPullStream = function (format) {
        return PullAudioOutputStream.create(format);
    };
    return AudioOutputStream;
}());
exports.AudioOutputStream = AudioOutputStream;
/**
 * Represents memory backed push audio input stream used for custom audio input configurations.
 * @class PullAudioOutputStream
 */
// tslint:disable-next-line:max-classes-per-file
var PullAudioOutputStream = /** @class */ (function (_super) {
    __extends(PullAudioOutputStream, _super);
    function PullAudioOutputStream() {
        return _super !== null && _super.apply(this, arguments) || this;
    }
    /**
     * Creates a memory backed PullAudioOutputStream with the specified audio format.
     * @member PullAudioOutputStream.create
     * @function
     * @public
     * @param {AudioStreamFormat} format - The audio data format in which audio will be written to the
     *        push audio stream's write() method (currently only support 16 kHz 16bit mono PCM).
     * @returns {PullAudioOutputStream} The push audio input stream being created.
     */
    PullAudioOutputStream.create = function (format) {
        return new PullAudioOutputStreamImpl(exports.bufferSize, format);
    };
    return PullAudioOutputStream;
}(AudioOutputStream));
exports.PullAudioOutputStream = PullAudioOutputStream;
/**
 * Represents memory backed push audio input stream used for custom audio input configurations.
 * @private
 * @class PullAudioOutputStreamImpl
 */
// tslint:disable-next-line:max-classes-per-file
var PullAudioOutputStreamImpl = /** @class */ (function (_super) {
    __extends(PullAudioOutputStreamImpl, _super);
    /**
     * Creates and initalizes an instance with the given values.
     * @constructor
     * @param {AudioStreamFormat} format - The audio stream format.
     */
    function PullAudioOutputStreamImpl(chunkSize, format) {
        var _this = _super.call(this) || this;
        if (format === undefined) {
            _this.privFormat = AudioStreamFormat_1.AudioStreamFormatImpl.getDefaultInputFormat();
        }
        else {
            _this.privFormat = format;
        }
        _this.privId = Guid_1.createNoDashGuid();
        _this.privStream = new Exports_1.ChunkedArrayBufferStream(chunkSize);
        _this.streamReader = _this.privStream.getReader();
        return _this;
    }
    Object.defineProperty(PullAudioOutputStreamImpl.prototype, "format", {
        /**
         * Format information for the audio
         */
        get: function () {
            return this.privFormat;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(PullAudioOutputStreamImpl.prototype, "isClosed", {
        /**
         * Checks if the stream is closed
         * @member PullAudioOutputStreamImpl.prototype.isClosed
         * @property
         * @public
         */
        get: function () {
            return this.privStream.isClosed;
        },
        enumerable: true,
        configurable: true
    });
    Object.defineProperty(PullAudioOutputStreamImpl.prototype, "id", {
        /**
         * Gets the id of the stream
         * @member PullAudioOutputStreamImpl.prototype.id
         * @property
         * @public
         */
        get: function () {
            return this.privId;
        },
        enumerable: true,
        configurable: true
    });
    /**
     * Reads data from the buffer
     * @member PullAudioOutputStreamImpl.prototype.read
     * @function
     * @public
     * @param {ArrayBuffer} dataBuffer - The audio buffer of which this function will make a copy.
     */
    PullAudioOutputStreamImpl.prototype.read = function () {
        return this.streamReader.read()
            .onSuccessContinueWithPromise(function (chunk) {
            return Exports_1.PromiseHelper.fromResult(chunk.buffer);
        });
    };
    /**
     * Writes the audio data specified by making an internal copy of the data.
     * @member PullAudioOutputStreamImpl.prototype.write
     * @function
     * @public
     * @param {ArrayBuffer} dataBuffer - The audio buffer of which this function will make a copy.
     */
    PullAudioOutputStreamImpl.prototype.write = function (dataBuffer) {
        this.privStream.writeStreamChunk({
            buffer: dataBuffer,
            isEnd: false,
            timeReceived: Date.now()
        });
    };
    /**
     * Closes the stream.
     * @member PullAudioOutputStreamImpl.prototype.close
     * @function
     * @public
     */
    PullAudioOutputStreamImpl.prototype.close = function () {
        this.privStream.close();
    };
    return PullAudioOutputStreamImpl;
}(PullAudioOutputStream));
exports.PullAudioOutputStreamImpl = PullAudioOutputStreamImpl;

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