mirror of https://bitbucket.org/ausocean/av.git
105 lines
2.6 KiB
JavaScript
105 lines
2.6 KiB
JavaScript
/*
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NAME
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main.js
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AUTHOR
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Trek Hopton <trek@ausocean.org>
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Alan Noble <alan@ausocean.org>
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LICENSE
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This file is Copyright (C) 2018 the Australian Ocean Lab (AusOcean)
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It is free software: you can redistribute it and/or modify them
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under the terms of the GNU General Public License as published by the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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It is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License in gpl.txt.
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If not, see [GNU licenses](http://www.gnu.org/licenses).
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*/
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function processData() {
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const input = event.target.files[0]
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const reader = new FileReader()
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reader.onload = event => {
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bytes = new Uint8Array(event.target.result)
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// decode adpcm to pcm
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var decoded = decode(Array.from(bytes))
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// convert raw pcm to wav
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var wav = pcmToWav(decoded, 48000, 1, 16);
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// play wav data in player
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const blob = new Blob([Uint8Array.from(wav)], {
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type: 'audio/wav'
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});
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const url = URL.createObjectURL(blob);
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const audio = document.getElementById('audio');
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const source = document.getElementById('source');
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source.src = url;
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audio.load();
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audio.play();
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}
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reader.onerror = error => reject(error)
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reader.readAsArrayBuffer(input)
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}
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// getQuery gets everything after the question mark in the URL.
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function getQuery() {
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var regex = new RegExp("\\?(.*)");
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var match = regex.exec(window.location.href);
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if (match == null) {
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return '';
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} else {
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return decodeURIComponent(match[1].replace(/\+/g, " "));
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}
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}
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function load() {
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var url = document.getElementById('url').value;
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if (url == "") {
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url = getQuery()
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document.getElementById('url').value = url;
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}
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if (url[0] == '/') {
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// url = window.location.protocol + '//' + window.location.host + url;
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url = "http://vidgrind.appspot.com" + url
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}
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if (url == "") {
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return;
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}
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var request = new XMLHttpRequest();
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request.responseType = "blob";
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request.onreadystatechange = function () {
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if (request.readyState === XMLHttpRequest.DONE) {
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if (request.status === 200) {
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console.log("request received");
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data = request.response;
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dataURL = URL.createObjectURL(data);
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var link = document.getElementById("link");
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link.href = dataURL;
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link.download = "audio.ts";
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link.innerHTML = "Download MPEG-TS";
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} else {
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console.log('There was a problem with the request.');
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}
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}
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}
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request.open("GET", url, true);
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request.send();
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} |