We have a video (13 minutes long) which we would like to control using HTML5. We want to be able to let our users control and select the parts of the video they want to play. Preferably this control would be through 2 input fields. They would input start time (in seconds) in first box and input duration to play (in seconds) in second box. For example, they might want to start the video 10 seconds in and play for 15 seconds. Any suggestions or guidance on the Javascript needed to do this?
Note: I have found the following:
Start HTML5 video at a particular position when loading?
But it addresses only starting at a particular time, and nothing with playing the video for a specified length of time.
You could use the timeupdate event listener.
Save the start time and duration time to variable after loadedmetadata event.
// Set video element to variable
var video = document.getElementById('player1');
var videoStartTime = 0;
var durationTime = 0;
video.addEventListener('loadedmetadata', function() {
videoStartTime = 2;
durationTime = 4;
this.currentTime = videoStartTime;
}, false);
If current time is greater than start time plus duration, pauses the video.
video.addEventListener('timeupdate', function() {
if(this.currentTime > videoStartTime + durationTime){
this.pause();
}
});
If you are able to set start time and end time of video while setting the video url.
you can specify the start and end time in the url itself like
src="future technology_n.mp4#t=20,50"
it will play from 20th second to 50th second.
There are a lot of nuances to using the javascript solution proposed by Paul Sham. A much easier course of action is to use the Media Fragment URI Spec. It will allow you to specify a small segment of a larger audio or video file to play. To use it simply alter the source for the file you are streaming and add #t=start,end where start is the start time in seconds and end is the end time in seconds.
For example:
var start = document.getElementById('startInput').value;
var end = document.getElementById('endInput').value;
document.getElementById('videoPlayer').src = 'http://www.example.com/example.ogv#t='+start+','+end;
This will update the player to start the source video at the specified time and end at the specified time. Browser support for media fragments is also pretty good so it should work in any browser that supports HTML5.
Extend to michael hanon comments:
IE returns buffered.length = 0 and seekable.length = 0. Video doesn't play. So solution:
src="video.mp4#t=10,30"
will not works in IE. If you would like to support IE only way is to use javascript to seek video just after start from 0 second.
Related
I can set the video player to play a video start at a specific point using
player.ready(function() {
player.currentTime(20);
});
I would like to be able to set and end time as I please. Let's say after 30 seconds.
Any pointers?
All that comes to mind is
setTimeout(function(){player.tech_.src(null)}, 30000)
This will roughly remove the current stream src.
I have a HTML page with an image in it.
When I roll-over the image with my mouse it plays an audio file.
I have 4 different audio files, and each time I roll-over the image I need it to play the next audio-file in the sequence.
I've got it playing one audio-file back ok, but how do I get it calling the next audio-file in the queue?
Its likely you just need to make a javascript function on the webpage to handle this. Without seeing your codes I can't really give you a good example. Here is what I would do. Within a a script tag or head javascript:
var current = 0;
var musicList = ["file1.wav", "file2.wav" , ...];
function playSound()
{
// Code to play audio file
// you don't need to bother with <audio> elements.
// HTML 5 lets you access audio API directly
// buffers automatically when created
var snd = new Audio(musicList[current]);
snd.play();
// code to increment and current counter (depending on musicList size)
current++;
current = current % musicList.length;
}
Within your HTML, you can just rely on javascript to do the work by using the onmouseover or onmouseout tag.
<img onmouseover="playSound();" src="smiley.gif" alt="Smiley">
Is there a way to use the Youtube API to play a video until a certain point in the video and then pause it?
I've modified the code from the YouTube Player API Reference for iframe Embeds to pause play after a certain number of seconds.
Demo
The code works by waiting for the onPlayerStateChange event. When the event fires, it checks the event to see if it's a PLAYING event. If it is, it calculates the remaining time from the current time (getCurrentTime() method) to the desired pause point (hardcoded as the stopPlayAt variable). It sets a Javascript timer to wait that difference and then pass the API a command to pause the video.
You can use the command cueVideoById in Object syntax to achieve this.
See here: https://developers.google.com/youtube/iframe_api_reference#cueVideoById
This is the way it should look like to start a video like this.
//Minimal Example
player.cueVideoById({videoId:String, endSeconds:Number});
player.playVideo();
EDIT: The above sample stops the video. If you want to pause it, a little more action is required by the JavaScript code.
In detail, you have to poll for the right time.
function checkTime() {
if ( player.getCurrentTime() == finishTime )
player.pauseVideo()
else
setInterval(checkTime, 500);
}
checkTime();
Or keep track of the time in JS:
var duration = finishTime - player.getCurrentTime();
player.playVideo()
setInterval("player.pauseVideo();", duration*1000);
I'm making a HTML5 video player. I want it so that when the movie stops the play these executes
video.pause();
video.currentTime=0;
document.getElementById('message').innerHTML="Finished";
I tried this but it didn't work
function rewsi() {
var video = document.getElementsByTagName('video')[0];
if (video.currentTime==video.duration) {
video.pause();
video.currentTime=0;
document.getElementById('message').innerHTML="Finished";
}
}
Anyone got a solution for this problem?
Problem = My lack of knowledge in JavaScript
Looking at the following question and asnwer:
HTML5 <video> callbacks?
I would assign a callback to be executed when the video has actually ended like so:
var Media = document.getElementsByTagName('video')[0];
var Message = document.getElementById('message');
Media.bind('ended',function(){
Message.innerHTML = "The media file has completed";
});
You also stated that when the media 'stops' you want to pause the video, can you describe your motives for doing that ?
The next on the agenda is the video resetting as such, looks like you want to set the position of the media to the start if the media stops, you must first make sure that your determining that the video has not been paused, as you do not want to reset the position if the user has gone to make a cup of coffee.
If you only want to set the media position when the movie has actually ended then this would be pointless (unless you have a valid reason to do so), the reason it would be pointless is that when the user clicks play after it has ended, the default action html5 media player takes is to set the position to 0.
The above solution should work out exactly right for you.
i will recommend using Kaltura HTML5 Video Library to help you manage the media player.
First, you can check if the video has ended by simply putting a condition on video.ended. Then you can set the time with this.currentTime(0);
I'm able to get two videos to play sequentially, (and without pause!) with this code from Apple, (see section 2-4)...
https://developer.apple.com/library/content/documentation/AudioVideo/Conceptual/Using_HTML5_Audio_Video/ControllingMediaWithJavaScript/ControllingMediaWithJavaScript.html
...Yet completely lost as to how to play a 3rd or 5th video. Trouble is I'm a Javascript noob :-(, so if you figure this out please share as much of your code as possible.
The first video's ended => Start second video
The second video's ended => Start third video
The third video's ended => Start fourth video
The fourth video's ended => Start first video
It's just redefining the ended event handler nonstop...
You could also use a variable starting at 0. increment it each time and set SRC to i%video_count
var i = 0;
var sources = ["http://www.a.com/blargh.m4v", "http://www.b.com/blargh.m4v"];
videoElement.addEventListener('ended', function(){
videoElement.src = sources[(++i)%sources.length];
videoElement.load();
videoElement.play();
}, false);
...The above code assumes the video is already playing onload, like your example