使用HTML 5和Javascript,是否可以仅播放来自YouTube视频的音频?
使用HTML 5和Javascript,是否可以仅播放来自YouTube视频的音频?
更新2022
为演示添加了Webm格式。 您可以始终检查控制台日志并添加所需的所有格式。
更新2021
您可以解析YouTube HTML页面以获取特定视频的所有流,并提取仅包含音频的流。
以下是一个使用公共Google图像代理(但您可以使用任何免费或自己的CORS代理)的示例:
var vid = "3r_Z5AYJJd4",
audio_streams = {},
audio_tag = document.getElementById('youtube');
fetch("https://images" + ~~(Math.random() * 33) + "-focus-opensocial.googleusercontent.com/gadgets/proxy?container=none&url=" + encodeURIComponent("https://www.youtube.com/watch?hl=en&v=" + vid)).then(response => {
if (response.ok) {
response.text().then(data => {
var regex = /(?:ytplayer\.config\s*=\s*|ytInitialPlayerResponse\s?=\s?)(.+?)(?:;var|;\(function|\)?;\s*if|;\s*if|;\s*ytplayer\.|;\s*<\/script)/gmsu;
data = data.split('window.getPageData')[0];
data = data.replace('ytInitialPlayerResponse = null', '');
data = data.replace('ytInitialPlayerResponse=window.ytInitialPlayerResponse', '');
data = data.replace('ytplayer.config={args:{raw_player_response:ytInitialPlayerResponse}};', '');
var matches = regex.exec(data);
var data = matches && matches.length > 1 ? JSON.parse(matches[1]) : false;
console.log(data);
var streams = [],
result = {};
if (data.streamingData) {
if (data.streamingData.adaptiveFormats) {
streams = streams.concat(data.streamingData.adaptiveFormats);
}
if (data.streamingData.formats) {
streams = streams.concat(data.streamingData.formats);
}
} else {
return false;
}
streams.forEach(function(stream, n) {
var itag = stream.itag * 1,
quality = false;
console.log(stream);
switch (itag) {
case 139:
quality = "48kbps";
break;
case 140:
quality = "128kbps";
break;
case 141:
quality = "256kbps";
break;
case 249:
quality = "webm_l";
break;
case 250:
quality = "webm_m";
break;
case 251:
quality = "webm_h";
break;
}
if (quality) audio_streams[quality] = stream.url;
});
console.log(audio_streams);
audio_tag.src = audio_streams['256kbps'] || audio_streams['128kbps'] || audio_streams['48kbps'];
audio_tag.play();
})
}
});
<audio id="youtube" autoplay controls loop></audio>
并不适用于所有的视频,非常依赖于货币化设置或类似的东西。
url_encoded_fmt_stream_map
和adaptive_fmts
。请见下面的我的文章......我稍作修改让你的解决方案工作起来了。 - Josh Stovall嵌入视频播放器并使用CSS隐藏视频。如果您做得当,甚至可以只隐藏视频而不隐藏下面的控件。
但是,我建议不要这样做,因为这将违反YouTube服务条款。如果您真的只想播放音频,请改用自己的服务器。
[禁止] 通过 YouTube API 获取的任何 YouTube 音视频内容的音频或视频组件,不能被分离、隔离或修改。
http://code.google.com/apis/youtube/terms.html - keyboardP似乎在2019年9月,YouTube更新了由get_video_info
返回的值。
现在我们要找的是data.formats
和data.adaptiveFormats
,而不是以前的data.url_encoded_fmt_stream_map
和data.adaptive_fmts
(用于其他旧示例)。
无论如何,以下是您想要的一些代码,将YouTube视频加载到<audio>
元素中。在CodePen上尝试
// YouTube video ID
var videoID = "CMNry4PE93Y";
// Fetch video info (using a proxy to avoid CORS errors)
fetch('https://cors-anywhere.herokuapp.com/' + "https://www.youtube.com/get_video_info?video_id=" + videoID).then(response => {
if (response.ok) {
response.text().then(ytData => {
// parse response to find audio info
var ytData = parse_str(ytData);
var getAdaptiveFormats = JSON.parse(ytData.player_response).streamingData.adaptiveFormats;
var findAudioInfo = getAdaptiveFormats.findIndex(obj => obj.audioQuality);
// get the URL for the audio file
var audioURL = getAdaptiveFormats[findAudioInfo].url;
// update the <audio> element src
var youtubeAudio = document.getElementById('youtube');
youtubeAudio.src = audioURL;
});
}
});
function parse_str(str) {
return str.split('&').reduce(function(params, param) {
var paramSplit = param.split('=').map(function(value) {
return decodeURIComponent(value.replace('+', ' '));
});
params[paramSplit[0]] = paramSplit[1];
return params;
}, {});
}
<audio id="youtube" controls></audio>
你可以通过Youtube Iframe API制作假音频播放器来切换Youtube iframe, 并使用该API获取想要在音频播放器上显示的信息。 下面是我的示例。
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link rel="stylesheet" href="player.css">
<script src="https://www.youtube.com/iframe_api"></script>
<script src="player.js"></script>
<script>
function onYouTubeIframeAPIReady() {
player = new YT.Player('player', {
height: '360',
width: '640',
videoId: 'M7lc1UVf-VE',
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
}
</script>
</head>
<body>
<!--Youtube-->
<div id="player" style="display: none; visibility: hidden;"></div>
<!--Player-->
<div class="audio-player">
<div class="player-controls">
<div id="radioIcon"></div>
<button id="playAudio"></button>
<div id="seekObjContainer">
<div id="seekObj">
<div id="percentage"></div>
</div>
</div>
<p><small id="currentTime">00:00</small></p>
</div>
</div>
</body>
</html>
var player;
function onPlayerReady(event) {
document.getElementById(ui.play).addEventListener('click', togglePlay);
timeupdater = setInterval(initProgressBar, 100);
}
function onPlayerStateChange(event) {
if (event.data == YT.PlayerState.ENDED) {
document.getElementById(ui.play).classList.remove('pause');
document.getElementById(ui.percentage).style.width = 0;
document.getElementById(ui.currentTime).innerHTML = '00:00';
player.seekTo(0, true);
}
}
let ui = {
play: 'playAudio',
audio: 'audio',
percentage: 'percentage',
seekObj: 'seekObj',
currentTime: 'currentTime'
};
function togglePlay() {
if (player.getPlayerState() === 1) {
player.pauseVideo();
document.getElementById(ui.play).classList.remove('pause');
} else {
player.playVideo();
document.getElementById(ui.play).classList.add('pause');
}
}
function calculatePercentPlayed() {
let percentage = (player.getCurrentTime() / player.getDuration()).toFixed(2) * 100;
document.getElementById(ui.percentage).style.width = `${percentage}%`;
}
function calculateCurrentValue(currentTime) {
const currentMinute = parseInt(currentTime / 60) % 60;
const currentSecondsLong = currentTime % 60;
const currentSeconds = currentSecondsLong.toFixed();
const currentTimeFormatted = `${currentMinute < 10 ? `0${currentMinute}` : currentMinute}:${
currentSeconds < 10 ? `0${currentSeconds}` : currentSeconds
}`;
return currentTimeFormatted;
}
function initProgressBar() {
const currentTime = calculateCurrentValue(player.getCurrentTime());
document.getElementById(ui.currentTime).innerHTML = currentTime;
document.getElementById(ui.seekObj).addEventListener('click', seek);
function seek(e) {
const percent = e.offsetX / this.offsetWidth;
player.seekTo(percent * player.getDuration());
}
calculatePercentPlayed();
}
* {
box-sizing: border-box;
}
body {
background-size: 6px 6px !important;
background-image: linear-gradient(-45deg, rgba(0, 0, 0, 0) 46%, coral 49%, coral 51%, rgba(0, 0, 0, 0) 55%);
background-color: white;
padding-top: 60px;
}
.audio-player {
width: 470px;
padding: 35px 20px;
margin: auto;
background-color: white;
border: 1px solid black;
}
.audio-player .player-controls {
position: relative;
display: flex;
justify-content: space-between;
align-items: center;
}
.audio-player #radioIcon {
width: 30px;
height: 30px;
background: url("https://img.icons8.com/ios/50/000000/microphone.png") no-repeat center;
background-size: contain;
}
.audio-player #playAudio {
-webkit-appearance: none;
outline: none;
cursor: pointer;
border: none;
width: 30px;
height: 30px;
background: url("https://img.icons8.com/play") no-repeat center;
background-size: contain;
}
.audio-player #playAudio.pause {
background: url("https://img.icons8.com/pause") no-repeat center;
background-size: contain;
}
.audio-player p {
margin: 0 0 0 5px;
line-height: 1;
display: inline-flex;
}
.audio-player p small {
font-size: 10px;
}
.audio-player #seekObjContainer {
position: relative;
width: 300px;
margin: 0 5px;
height: 5px;
}
.audio-player #seekObjContainer #seekObj {
position: relative;
width: 100%;
height: 100%;
background-color: #e3e3e3;
border: 1px solid black;
}
.audio-player #seekObjContainer #seekObj #percentage {
position: absolute;
left: 0;
top: 0;
height: 100%;
background-color: coral;
}
这可能是一篇旧帖子,但仍然有人可能在搜索相关内容,所以在这里提供给大家:
<div style="position:relative;width:267px;height:25px;overflow:hidden;">
<div style="position:absolute;top:-276px;left:-5px">
<iframe width="300" height="300"
src="https://www.youtube.com/embed/youtubeID?rel=0">
</iframe>
</div>
</div>
VIDEO_ID是你的YouTube视频的实际ID。
<div data-video="VIDEO_ID"
data-autoplay="0"
data-loop="1"
id="youtube-audio">
</div>
<script src="https://www.youtube.com/iframe_api"></script>
<script src="https://cdn.rawgit.com/labnol/files/master/yt.js"></script>
start=00:30&end=03:20
。 - uraniumrezavar vid = "bpt84ceWAY0",
audio_streams = {},
audio_tag = document.getElementById('youtube');
fetch("https://"+vid+"-focus-opensocial.googleusercontent.com/gadgets/proxy?container=none&url=https%3A%2F%2Fwww.youtube.com%2Fget_video_info%3Fvideo_id%3D" + vid).then(response => {
if (response.ok) {
response.text().then(data => {
var data = parse_str(data),
streams = (data.url_encoded_fmt_stream_map + ',' + data.adaptive_fmts).split(',');
streams.forEach(function(s, n) {
var stream = parse_str(s),
itag = stream.itag * 1,
quality = false;
console.log(stream);
switch (itag) {
case 139:
quality = "48kbps";
break;
case 140:
quality = "128kbps";
break;
case 141:
quality = "256kbps";
break;
}
if (quality) audio_streams[quality] = stream.url;
});
console.log(audio_streams);
audio_tag.src = audio_streams['128kbps'];
audio_tag.play();
})
}
});
function parse_str(str) {
return str.split('&').reduce(function(params, param) {
var paramSplit = param.split('=').map(function(value) {
return decodeURIComponent(value.replace('+', ' '));
});
params[paramSplit[0]] = paramSplit[1];
return params;
}, {});
}
<audio id="youtube" autoplay controls loop></audio>
除了提到jwplayer和可能的TOS违规外,我想链接到github上的以下存储库:YouTube音频播放器生成库,它允许生成以下输出:
该库支持播放列表和PHP自动渲染,可通过视频URL和配置选项实现。
我同意Tom van der Woerdt的观点。你可以使用CSS来隐藏视频(在高度限制的div包装器中使用visibility:hidden或overflow:hidden),但这可能会违反Youtube的政策。此外,你如何控制音频(暂停、停止、音量等)?
相反,你可以利用http://www.houndbite.com/等资源来管理音频。