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How to make a video minimized automatically when it ends

I use a button that calls the function "play()" that make the video play on fullscreen
<div style="text-align:center">
<form>
<input type="button" name="something" value="start_experiment" onclick="play(this,vid)">
</form>
</div>
<video id="vid" width="320" height="240" class="rounded-circle" >
<source src="assets/vid/video.mp4" type="video/mp4" >
</video>
<script>
function play(button,vidid) {
button.style.visibility = "hidden";
var myVideo = vidid;
if (myVideo.requestFullscreen) {
myVideo.requestFullscreen();
}
else if (myVideo.msRequestFullscreen) {
myVideo.msRequestFullscreen();
}
else if (myVideo.mozRequestFullScreen) {
myVideo.mozRequestFullScreen();
}
else if (myVideo.webkitRequestFullScreen) {
myVideo.webkitRequestFullScreen();
}
myVideo.play();
}
</script>
How could I make the video auto-minimized when it stops playing?

.onended() this function use in end video.
The ended event occurs when the audio/video has reached the end.
This event is useful for messages like "thanks for listening", "thanks for watching", etc.
example:-
var vid = document.getElementById("vid");
vid.onended = function() {
alert("The video has ended");
this.exitFullscreen();
/*any this you add this function*/
};

You can add an event listener to your video which fires when it ends.
myvideo.addEventListener('ended', () => {
document.exitFullscreen();
});

How to create a toggle sound button on video

I recently just asked a question on how to execute a working togglePlay button and I left out the sound part bc I thought it could be done the exact same way. I'm now realizing that it's a bit more complicated than I thought.
So far I've been able to get the sound icon to change, but I can't figure out how to get the actual audio to mute and unmute. Here's my code:
const video = document.querySelector('.dvid');
const togglePause = document.querySelector('.toggle-pause');
const toggleSound = document.querySelector('.toggle-sound');
function togglePlay() {
const isPlaying = video.paused ? 'play' : 'pause';
video[isPlaying]();
}
function togglePlyBtn() {
if (this.paused) {
togglePause.innerHTML = '<img src="play.png">';
} else {
togglePause.innerHTML = '<img src="pause.png">';
}
}
function toggleSnd () {
}
function toggleSndBtn() {
if (this.muted === true) {
toggleSound.innerHTML = '<img src="mute.png">' ;
} else {
toggleSound.innerHTML = '<img src="sound.png">';
}
}
video.addEventListener('click', toggleSnd);
video.addEventListener('click', togglePlay);
video.addEventListener('pause', togglePlyBtn);
video.addEventListener('play', togglePlyBtn);
video.addEventListener('muted', toggleSndBtn);
toggleSound.addEventListener('click', toggleSndBtn);
togglePause.addEventListener('click', togglePlay);
<video class="dvid" autoplay loop muted>
<source src="2amfreestyle.mp4" type="video/mp4"/>
<p>This browser does not support this video</p>
</video>
<footer class="indexfooter">
<div class="video-controls">
<button class="toggle-pause"> <img src="pause.png"> </button>
<button class="toggle-sound">
<img src="mute.png">
</button>

You can use volume property to set or return current volume of the video.
So the toggleSnd would look something like this:
function toggleSnd () {
video.volume = video.volume > 0 ? 0 : 1;
}

Make same button play/pause html5 video

So i had this working at one point eventually i broke it and now i need to get it working again.
I want for when you press the PLAY button the video will start playing. and the PLAY button will change it text to say PAUSE. Then when you click it again the video will pause.
HTML:
<video id="myVideo" width="1024" height="576">
<source src="myaddiction.mp4" type="video/mp4">
<source src="myaddiction.mp4.ogg" type="video/ogg">
Your browser does not support HTML5 video.
</video>
<button id="button" onclick="playPause(); ">PLAY</button>
SCRIPT:
var vid = document.getElementById("myVideo");
function playPause() {
vid.play();
}
function playPause() {
vid.pause();
}
function playPause() {
var change = document.getElementById("button");
if (change.innerHTML == "PLAY") {
change.innerHTML = "PAUSE";
} else {
change.innerHTML = "PLAY";
}
}
Here is also a fiddle with everything in it. If you know how to get a video working in it that'd be cool if you'd add it. Thanks!
https://jsfiddle.net/wb83hydn/
**EDIT: currently the problem is the video wont play when the button is pressed. The button changes text but the video does nothing.

You are defining your playPause function 3 separate times. You are likely to get some unexpected results. That is, if the interpreter doesn't error out completely. You will be better served with just creating one function, and use a global variable to handle the tracking of the play/pause state. Something like this:
var vid = document.getElementById("myVideo");
var isPlaying = false;
function playPause() {
var change = document.getElementById("button");
if (isPlaying) {
vid.pause();
change.innerHTML = "PLAY";
} else {
vid.play();
change.innerHTML = "PAUSE";
}
isPlaying = !isPlaying;
}

Change your javascript to this to make it work.
You'll need to make sure the DOM is loaded first by using window.onLoad or putting the JS at the end of the HTML file.
I updated the JSFiddle, but you'll need a valid online video file to make it work.
var vid = document.getElementById("myVideo");
function play() {
vid.play();
}
function pause() {
vid.pause();
}
function playPause() {
var change = document.getElementById("button");
if (change.innerHTML == "PLAY") {
change.innerHTML = "PAUSE";
play();
} else {
change.innerHTML = "PLAY";
pause();
}
}
https://jsfiddle.net/wb83hydn/3/

Play and pause video by the same button
document.getElementById("play").onclick = function() {
if(document.getElementById("video").paused){
document.getElementById("video").play();
this.innerHTML ="Pause";
}else{
document.getElementById("video").pause();
this.innerHTML = "Play";
}
}

Audio Player mute button (HTML5 and Javascript)

I am trying to create a mute button to my website's custom audio player. Apparently, this simple thing gives me a real headache.
As you see below, I have tried to ad an IF statement to the button. If the volume is on and I press the button, mute the volume. else, if the volume si muted, unmute it.
<audio id="audio" >
<source src="material/audio/sound.mp3"
type='audio/mpeg;
codecs="mp3"'/>
</audio>
<button ID="mute"
onclick="muteAudio()">
<img src="material/images/mute.png"
ID="mute_img"/>
<script type="text/javascript">
function muteAudio() {
var audio = document.getElementById('audioPlayer');
if (audio.mute = false) {
document.getElementById('audioPlayer').muted = true;
}
else {
audio.mute = true
document.getElementById('audioPlayer').muted = false;
}
}
</script>

You need to use == (comparison) rather than = (assignment):
if (audio.mute == false)
{
document.getElementById('audioPlayer').muted = true;
}
else
{
audio.mute = true
document.getElementById('audioPlayer').muted = false;
}
or probably better would be to use the ! (not) operator:
if (!audio.mute)

How use 2 audio players and stop one when other is playing

So i have one audio player in my page with two play buttons, and i need to stop and play the player works with this two buttons.
I'm using html5 and js/jquery for do this, but i can't finding a way to stop audio-player 1 when i start audio-player 2, someone can help?
My jsfiddle: http://jsfiddle.net/j08691/LqM9D/9/

My 2cents, it will detect with button is clicked, and change the other one's text back to "play"
window.player = $('#player')[0];
$('#playpause, #playpause2').click(function () {
if (player.paused) {
var second_playbutton = ($(this).attr("id") == "playpause")
? "playpause2"
: "playpause"
$("#" + second_playbutton).html("play");
player.play();
this.innerHTML = 'pause';
} else {
player.pause();
this.innerHTML = 'play';
}
})

you can just use one class name for each button and control them at one time
<button class="player-control" id="playpause">play</button>
<audio id="player">
<source src="http://96.47.236.72:8364/;" />
</audio>
<!-- here the other button that needs to start sound too -->
<button class="player-control" id="playpause2">play</button>
<script type="text/javascript">
window.player = $('#player')[0];
$('.player-control').click(function () {
if (player.paused) {
player.play();
$('.player-control').html('pause');
} else {
player.pause();
$('.player-control').html('play');
}
});
</script>