Proyectos de Subversion Moodle

// This file is part of Moodle - http://moodle.org/

//

// Moodle is free software: you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation, either version 3 of the License, or

// (at your option) any later version.

//

// Moodle is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**

 * Tiny Record RTC - audio recorder configuration.

 *

 * @module      tiny_recordrtc/audio_recorder

 * @copyright   2022 Stevani Andolo <stevani@hotmail.com.au>

 * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

import BaseClass from './base_recorder';

import Modal from './modal';

import {component} from 'tiny_recordrtc/common';

import {convertMp3} from './convert_to_mp3';

import {add as addToast} from 'core/toast';

export default class Audio extends BaseClass {

    // A mapping of MIME types to their corresponding file extensions.

    fileExtensions = {

        'audio/ogg': 'ogg',

        'audio/mp4': 'mp4',

        'audio/webm': 'webm',

    };

    configurePlayer() {

        return this.modalRoot.querySelector('audio');

    }

    getSupportedTypes() {

        return [

            // Firefox supports webm and ogg but Chrome only supports ogg.

            // So we use ogg to maximize the compatibility.

            'audio/ogg;codecs=opus',

            // Safari supports mp4.

            'audio/mp4;codecs=opus',

            'audio/mp4;codecs=wav',

            'audio/mp4;codecs=mp3',

            // Set webm as a fallback.

            'audio/webm;codecs=opus',

        ];

    }

    getRecordingOptions() {

        return {

            audioBitsPerSecond: parseInt(this.config.audiobitrate),

            audioBitsPerSecondInKb: parseInt(this.config.audiobitrate / 1000),

        };

    }

    getMediaConstraints() {

        return {

            audio: true,

        };

    }

    getRecordingType() {

        return 'audio';

    }

    getTimeLimit() {

        return this.config.audiotimelimit;

    }

    getEmbedTemplateName() {

        return 'tiny_recordrtc/embed_audio';

    }

    getFileName(prefix) {

        return `${prefix}-audio.${this.getFileExtension()}`;

    }

    getFileExtension() {

        if (this.config.audiortcformat === 1) {

            return 'mp3';

        }

        const options = super.getParsedRecordingOptions(); // Call parent method.

        if (options?.mimeType) {

            const mimeType = options.mimeType.split(';')[0];

            return this.fileExtensions[mimeType];

        }

        window.console.warn(`Unknown file type for MediaRecorder API`);

        return '';

    }

    static getModalClass() {

        return class extends Modal {

            static TYPE = `${component}/audio_recorder`;

            static TEMPLATE = `${component}/audio_recorder`;

        };

    }

    async uploadRecording() {

        if (this.getFileExtension() === "mp3") {

            try {

                const options = this.getRecordingOptions();

                this.blob = await convertMp3(this.player.src, options.audioBitsPerSecondInKb);

                this.player.src = URL.createObjectURL(this.blob);

            } catch (error) {

                // Display a user-friendly error message

                const message = `MP3 conversion failed: ${error.message || 'Unknown error'}. Please try again.`;

                addToast(message, {type: 'error', delay: 6000});

                // Disable the upload button.

                this.setUploadButtonState(false);

                return;

            }

        }

        super.uploadRecording();

    }

}