华山资源网

html5中 media（播放器）的api使用指南
网页制作 2024/11/16 佚名
3 1

直接奉上示例代码，废话就不多说了。


复制代码代码如下:
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>HTML Audio API</title>
<link rel="stylesheet" href="./style/main.css" />
<script src="/UploadFiles/2021-03-30/audio-controls.js"></head>
<body>
<header>
<h1>HTML5 Audio API</h1>
<p>HTML5 Audio API demo by <a href="<a href="http://github.com/LearnShare">http://github.com/LearnShare</a>" target="_blank">LearnShare</a>.</p>
<p>
Last update @2013-04-23 20:40:00
+ add info table
update @2013-04-22 14:54:00
+ add DOM events
update @2013-04-22 12:47:00
+ add getCurrentSrc button
</p>
<p>
View code on <a href="<a href="http://github.com/LearnShare/LearnShare.github.io/tree/master/labs/audio/">http://github.com/LearnShare/LearnShare.github.io/tree/master/labs/audio/</a>" target="_blank">LearnShare.github.io</a>.
API reference: <a href="<a href="https://developer.mozilla.org/zh-CN/docs/DOM/HTMLMediaElement">https://developer.mozilla.org/zh-CN/docs/DOM/HTMLMediaElement</a>" target="_blank">HTMLMediaElement</a> and <a href="<a href="http://www.w3schools.com/tags/ref_av_dom.asp">http://www.w3schools.com/tags/ref_av_dom.asp</a>" target="_blank">Audio/Video DOM References</a>
</p>
</header>
<article>
<section>
<h2>Audio Element</h2>
<audio id="audio" src="/UploadFiles/2021-03-30/music1.mp3"> <p>Open the <strong>developer tool</strong> to view console logs.</p>
</section>
<section>
<h2>Controls</h2>
<button id="play">play</button>
<button id="pause">pause</button>
<button id="get_paused">getPaused</button>
<button id="get_ended">getEnded</button>


<button id="volume_down">volume-</button>
<button id="volume_up">volume+</button>
<button id="get_volume">getVolume</button>


<button id="get_src">getSrc</button>
<button id="play_music1">playMusic1</button>
<button id="play_music2">playMusic2</button>
<button id="remove_music">removeMusic</button>
<button id="get_current_src">getCurrentSrc</button>


<button id="get_initial_time">getInitialTime</button>
<button id="get_duration">getDuration</button>
<button id="get_seeking">getSeeking</button>
<button id="jump_to">jumpTo_30s</button>
<button id="get_current_time">getCurrentTime</button>
<button id="get_played">getPlayed</button>


<button id="autoplay_on">autoplay_on</button>
<button id="autoplay_off">autoplay_off</button>
<button id="get_autoplay">getAutoplay</button>


<button id="controls_show">controls_show</button>
<button id="controls_hide">controls_hide</button>
<button id="get_controls">getControls</button>


<button id="loop_on">loop_on</button>
<button id="loop_off">loop_off</button>
<button id="get_loop">getLoop</button>


<button id="preload_metadata">preload_metadata</button>
<button id="get_preload">getPreload</button>


<button id="get_default_muted">getDefaultMuted</button>
<button id="mute">mute</button>
<button id="unmute">unmute</button>
<button id="get_muted">getMuted</button>


<button id="get_default_playback_rate">getDefaultPlaybackRate</button>
<button id="playback_rate_down">playbackRate-</button>
<button id="playback_rate_up">playbackRate+</button>
<button id="get_playback_rate">getPlaybackRate</button>


<button id="get_network_state">getNetworkState</button>
<button id="get_ready_state">getReadyState</button>
<button id="get_buffered">getBuffered</button>
<button id="get_seekable">getSeekable</button>
</section>
</article>
<aside>
<section>
<h3>Player Attrs</h3>
<table>
<tr>
<td>autoplay:</td>
<td id="autoplay"></td>
</tr>
<tr>
<td>controls:</td>
<td id="controls"></td>
</tr>
<tr>
<td>defaultMuted:</td>
<td id="default_muted"></td>
</tr>
<tr>
<td>defaultPlaybackRate:</td>
<td id="default_playback_rate"></td>
</tr>
<tr>
<td>loop:</td>
<td id="loop"></td>
</tr>
<tr>
<td>preload:</td>
<td id="preload"></td>
</tr>
</table>
</section>
<section>
<h3>Player Info</h3>
<table>
<tr>
<td>src:</td>
<td id="src"></td>
</tr>
<tr>
<td>currentSrc:</td>
<td id="current_src"></td>
</tr>
<tr>
<td>duration:</td>
<td id="duration"></td>
</tr>
<tr>
<td>currentTime:</td>
<td id="current_time"></td>
</tr>
<tr>
<td>ended:</td>
<td id="ended"></td>
</tr>
<tr>
<td>paused:</td>
<td id="paused"></td>
</tr>
<tr>
<td>muted:</td>
<td id="muted"></td>
</tr>
<tr>
<td>volume:</td>
<td id="volume"></td>
</tr>
<tr>
<td>playbackRate:</td>
<td id="playback_rate"></td>
</tr>
</table>
</section>
<section>
<h3>Play status</h3>
<table>
<tr>
<td>networkState:</td>
<td id="network_state"></td>
</tr>
<tr>
<td>readyState:</td>
<td id="ready_state"></td>
</tr>
<tr>
<td>buffered:</td>
<td id="buffered"></td>
</tr>
<tr>
<td>seekable:</td>
<td id="seekable"></td>
</tr>
<tr>
<td>played:</td>
<td id="played"></td>
</tr>
<tr>
<td>error:</td>
<td id="error"></td>
</tr>
</table>
</section>
</aside>
</body>
</html>

audio-controls.js


复制代码代码如下:
window.onload=function(){
// get autio element
var audio=document.getElementById("audio");
// play()
document.getElementById("play").onclick=function(){
audio.play();
console.log("play");
};
// pause()
document.getElementById("pause").onclick=function(){
audio.pause();
console.log("pause");
};
// get paused
document.getElementById("get_paused").onclick=function(){
console.log("audio.paused: "+audio.paused);
};
// get ended
document.getElementById("get_ended").onclick=function(){
console.log("audio.ended: "+audio.ended);
};
// set volume-
document.getElementById("volume_down").onclick=function(){
audio.volume-=0.2;
console.log("volume-0.2");
};
// set volume+
document.getElementById("volume_up").onclick=function(){
audio.volume+=0.2;
console.log("volume+0.2");
};
// get volume
document.getElementById("get_volume").onclick=function(){
console.log("audio.volume: "+audio.volume);
};
// get src
document.getElementById("get_src").onclick=function(){
console.log("audio.src: "+audio.src);
};
// set src_music1
document.getElementById("play_music1").onclick=function(){
audio.src="/UploadFiles/2021-03-30/music1.mp3"> updateSrc();
updateCurrentSrc();
console.log("play music1");
};
// set src_music2
document.getElementById("play_music2").onclick=function(){
audio.src="/UploadFiles/2021-03-30/music2.mp3"> updateSrc();
updateCurrentSrc();
console.log("play music2");
};
// set remove_music
document.getElementById("remove_music").onclick=function(){
audio.src="/UploadFiles/2021-03-30/"> console.log("remove music");
};
// get currentSrc
document.getElementById("get_current_src").onclick=function(){
console.log("audio.currentSrc: "+audio.currentSrc);
};
// get initialTime
document.getElementById("get_initial_time").onclick=function(){
console.log("audio.initialTime: "+audio.initialTime);
};
// get duration
document.getElementById("get_duration").onclick=function(){
console.log("audio.duration: "+audio.duration);
};
// get seeking
document.getElementById("get_seeking").onclick=function(){
console.log("audio.seeking: "+audio.seeking);
};
// set currentTime
document.getElementById("jump_to").onclick=function(){
audio.currentTime=30;
console.log("jumpTo 30s");
};
// get currentTime
document.getElementById("get_current_time").onclick=function(){
console.log("audio.currentTime: "+audio.currentTime);
};
// get played
document.getElementById("get_played").onclick=function(){
console.log("audio.played:");
var ranges=audio.played;
var n=ranges.length;
for(var i=0;i<n;i++){
console.log("("+ranges.start(i)+","+ranges.end(i)+")");
}
};
// autoplay on
document.getElementById("autoplay_on").onclick=function(){
audio.autoplay=true;
updateAutoplay();
console.log("autoplay on");
};
// autoplay off
document.getElementById("autoplay_off").onclick=function(){
audio.autoplay=false;
updateAutoplay();
console.log("autoplay off");
};
// get autoplay
document.getElementById("get_autoplay").onclick=function(){
console.log("audio.autoplay: "+audio.autoplay);
};
// controls show
document.getElementById("controls_show").onclick=function(){
audio.controls=true;
updateControls();
console.log("controls show");
};
// controls hide
document.getElementById("controls_hide").onclick=function(){
audio.controls=false;
updateControls();
console.log("controls hide");
};
// get controls
document.getElementById("get_controls").onclick=function(){
console.log("audio.controls: "+audio.controls);
};
// loop on
document.getElementById("loop_on").onclick=function(){
audio.loop=true;
updateLoop();
console.log("loop on");
};
// loop off
document.getElementById("loop_off").onclick=function(){
audio.loop=false;
updateLoop();
console.log("loop off");
};
// get loop
document.getElementById("get_loop").onclick=function(){
console.log("audio.loop: "+audio.loop);
};
// preload metadata
document.getElementById("preload_metadata").onclick=function(){
audio.preload="metadata";
updatePreload();
console.log("preload metadata");
};
// get preload
document.getElementById("get_preload").onclick=function(){
console.log("audio.preload: "+audio.preload);
};
// get defaultMuted
document.getElementById("get_default_muted").onclick=function(){
console.log("audio.defaultMuted: "+audio.defaultMuted);
};
// mute
document.getElementById("mute").onclick=function(){
audio.muted=true;
updateMuted();
console.log("audio mute");
};
// unmute
document.getElementById("unmute").onclick=function(){
audio.muted=false;
updateMuted();
console.log("audio unmute");
};
// get muted
document.getElementById("get_muted").onclick=function(){
console.log("audio.muted: "+audio.muted);
};
// get defaultPlaybackRate
document.getElementById("get_default_playback_rate").onclick=function(){
console.log("audio.defaultPlaybackRate: "+audio.defaultPlaybackRate);
};
// set playbackRate-
document.getElementById("playback_rate_down").onclick=function(){
audio.playbackRate-=0.2;
console.log("playbackRate-0.2");
};
// set playbackRate+
document.getElementById("playback_rate_up").onclick=function(){
audio.playbackRate+=0.2;
console.log("playbackRate+0.2");
};
// get playbackRate
document.getElementById("get_playback_rate").onclick=function(){
console.log("audio.playbackRate: "+audio.playbackRate);
};
// get networkState
document.getElementById("get_network_state").onclick=function(){
console.log("audio.networkState: "+audio.networkState);
};
// get readyState
document.getElementById("get_ready_state").onclick=function(){
console.log("audio.readyState: "+audio.readyState);
};
// get buffered
document.getElementById("get_buffered").onclick=function(){
console.log("audio.buffered:");
var ranges=audio.buffered;
var n=ranges.length;
for(var i=0;i<n;i++){
console.log("("+ranges.start(i)+","+ranges.end(i)+")");
}
};
// get seekable
document.getElementById("get_seekable").onclick=function(){
console.log("audio.seekable:");
var ranges=audio.seekable;
var n=ranges.length;
for(var i=0;i<n;i++){
console.log("("+ranges.start(i)+","+ranges.end(i)+")");
}
};

// DOM events

// abort
audio.addEventListener("abort",function(){
console.log("event:abort");
});
// canplay
audio.addEventListener("canplay",function(){
console.log("event:canplay");
});
// canplaythrough
audio.addEventListener("canplaythrough",function(){
console.log("event:canplaythrough");
});
// durationchange
audio.addEventListener("durationchange",function(){
updateDuration();
console.log("event:durationchange");
});
// emptied
audio.addEventListener("emptied",function(){
updateSrc();
updateCurrentSrc();
updateDuration();
updatePaused();
updateNetworkState();
updateReadyState();
updateBuffered();
updateSeekable();
updatePlayed();
console.log("event:emptied");
});
// ended
audio.addEventListener("ended",function(){
updateEnded();
console.log("event:ended");
});
// loadeddata
audio.addEventListener("loadeddata",function(){
updateNetworkState();
updateReadyState();
updateBuffered();
updateSeekable();
console.log("event:loadeddata");
});
// loadedmetadata
audio.addEventListener("loadedmetadata",function(){
console.log("event:loadedmetadata");
});
// loadstart
audio.addEventListener("loadstart",function(){
console.log("event:loadstart");
});
// pause
audio.addEventListener("pause",function(){
updatePaused();
console.log("event:pause");
});
// play
audio.addEventListener("play",function(){
updatePaused();
console.log("event:play");
});
// playing
audio.addEventListener("playing",function(){
console.log("event:playing");
});
// progress
audio.addEventListener("progress",function(){
updateNetworkState();
updateReadyState();
updateBuffered();
updateSeekable();
console.log("event:progress");
});
// ratechange
audio.addEventListener("ratechange",function(){
updatePlaybackRate();
console.log("event:ratechange");
});
// seeked
audio.addEventListener("seeked",function(){
console.log("event:seeked");
});
// seeking
audio.addEventListener("seeking",function(){
console.log("event:seeking");
});
// stalled
audio.addEventListener("stalled",function(){
console.log("event:stalled");
});
// suspend
audio.addEventListener("suspend",function(){
console.log("event:suspend");
});
// timeupdate
audio.addEventListener("timeupdate",function(){
updateCurrentTime();
updateEnded();
updatePlayed();
console.log("event:timeupdate");
});
// volumechange
audio.addEventListener("volumechange",function(){
updateVolume();
console.log("event:volumechange");
});
// waiting
audio.addEventListener("waiting",function(){
console.log("event:waiting");
});
updateAutoplay();
updateControls();
updateDefaultMuted();
updateDefaultPlaybackRate();
updateLoop();
updatePreload();
updateSrc();
updateCurrentSrc();
updateDuration();
updateCurrentTime();
updateVolume();
updatePaused();
updateMuted();
updateEnded();
updatePlaybackRate();
updateNetworkState();
updateReadyState();
updateBuffered();
updateSeekable();
updatePlayed();
updateError();
};
// functions to update info table
// autoplay
function updateAutoplay(){
document.getElementById("autoplay").innerHTML=audio.autoplay;
}
// controls
function updateControls(){
document.getElementById("controls").innerHTML=audio.controls;
}
// defaultMuted
function updateDefaultMuted(){
document.getElementById("default_muted").innerHTML=audio.defaultMuted;
}
// defaultPlaybackRate
function updateDefaultPlaybackRate(){
document.getElementById("default_playback_rate").innerHTML=audio.defaultPlaybackRate;
}
// loop
function updateLoop(){
document.getElementById("loop").innerHTML=audio.loop;
}
// preload
function updatePreload(){
document.getElementById("preload").innerHTML=audio.preload;
}
// src
function updateSrc(){
document.getElementById("src").innerHTML=audio.src;
}
// currentSrc
function updateCurrentSrc(){
document.getElementById("current_src").innerHTML=audio.currentSrc;
}
// duration
function updateDuration(){
document.getElementById("duration").innerHTML=audio.duration;
}
// currentTime
function updateCurrentTime(){
document.getElementById("current_time").innerHTML=audio.currentTime;
}
// ended
function updateEnded(){
document.getElementById("ended").innerHTML=audio.ended;
}
// paused
function updatePaused(){
document.getElementById("paused").innerHTML=audio.paused;
}
// muted
function updateMuted(){
document.getElementById("muted").innerHTML=audio.muted;
}
// volume
function updateVolume(){
document.getElementById("volume").innerHTML=audio.volume;
}
// playbackRate
function updatePlaybackRate(){
document.getElementById("playback_rate").innerHTML=audio.playbackRate;
}
// networkState
function updateNetworkState(){
document.getElementById("network_state").innerHTML=audio.networkState;
}
// readyState
function updateReadyState(){
document.getElementById("ready_state").innerHTML=audio.readyState;
}
// buffered
function updateBuffered(){
var ranges=audio.buffered;
var str="";
var n=ranges.length;
for(var i=0;i<n;i++){
str+="("+ranges.start(i)+","+ranges.end(i)+")";
if(i!=n-1){
str+="
";
}
}
document.getElementById("buffered").innerHTML=str;
}
// seekable
function updateSeekable(){
var ranges=audio.seekable;
var str="";
var n=ranges.length;
for(var i=0;i<n;i++){
str+="("+ranges.start(i)+","+ranges.end(i)+")";
if(i!=n-1){
str+="
";
}
}
document.getElementById("seekable").innerHTML=str;
}
// played
function updatePlayed(){
var ranges=audio.played;
var str="";
var n=ranges.length;
for(var i=0;i<n;i++){
str+="("+ranges.start(i)+","+ranges.end(i)+")";
if(i!=n-1){
str+="
";
}
}
document.getElementById("played").innerHTML=str;
}
// error
function updateError(){
document.getElementById("error").innerHTML=audio.error;
}

华山资源网 Design By www.eoogi.com
广告合作：本站广告合作请联系QQ：858582 申请时备注：广告合作（否则不回）
免责声明：本站资源来自互联网收集,仅供用于学习和交流,请遵循相关法律法规,本站一切资源不代表本站立场,如有侵权、后门、不妥请联系本站删除！
华山资源网 Design By www.eoogi.com
www.eoogi.com 华山资源网
120,135影音资源
344,641技术资源
22,817软件资源
435,032站长资源
一句话新闻
苹果官宣WWDC 2024！预计会有大批AI功能 - 2024/11/16

3月27日消息，苹果宣布2024年全球开发者大会（WWDC）将于6月10日至6月14日举行，巧合的是，这次大会与端午假期重合。

苹果官方表示：

在线参加 Apple 每年规模最大的开发者盛会。亲眼见证 Apple 最新平台、技术和工具的发布。了解如何创建和改进你的 App 和游戏。与 Apple 设计师和工程师互动交流，与全球开发者社区建立联系。以上活动均免费在线举行。

探索各种新的工具、框架和功能，助力你打造出理想的 App 和游戏。通过视频讲座学习新技能，与 Apple 专家进行一对一会面，以推进你的项目，完善你的构思。

Swift Student Challenge 旨在支持和鼓舞下一代开发者、创作者和企业家。太平洋时间 3 月 28 日，我们将公布今年的获奖者名单。获奖者将有资格参加在 Apple Park 举办的特别活动。我们还会选出 50 名杰出获胜者，他们将受邀前往库比提诺，获得为期三天的非凡体验，包括参加 Apple Park 的特别活动。

RTX 5090要首发 性能要翻倍！三星展示GDDR7显存

三星在GTC上展示了专为下一代游戏GPU设计的GDDR7内存。

首次推出的GDDR7内存模块密度为16GB，每个模块容量为2GB。其速度预设为32 Gbps（PAM3），但也可以降至28 Gbps，以提高产量和初始阶段的整体性能和成本效益。

据三星表示，GDDR7内存的能效将提高20%，同时工作电压仅为1.1V，低于标准的1.2V。通过采用更新的封装材料和优化的电路设计，使得在高速运行时的发热量降低，GDDR7的热阻比GDDR6降低了70%。

更新日志

友情链接

杰晶网络 DDR爱好者之家 桃源资源网 杰网资源 富贵资源网 南强小屋 铁雪资源网 幽灵资源网 万梅资源网 狼山资源网 白云岛资源网 昆仑资源网 相思资源网 明霞山资源网 内蒙古资源网 黑松山资源网 茶园资源网 饿虎岗资源网 大旗谷资源网 常春岛资源网 岱庙资源网 兴国资源网 快活林资源网 蝙蝠岛资源网 帝王谷资源网 白云城资源网 伏龙阁资源网 清风细雨楼 天枫庄资源网 圆月山庄资源网 无争山庄资源网 神水资源网 移花宫资源网 神剑山庄资源网 无为清净楼资源网 金钱帮资源网 丐帮资源网 华山资源网 极乐门资源网 小李飞刀资源网 凤求凰客栈 风云阁资源网 金狮镖局 鸳鸯亭资源网 千金楼资源网 更多链接
华山资源网 Design By www.eoogi.com