In the past, Adobe’s Flash video technology was the main method of delivering video via the internet. So this article is for Laymen.Ī Brief Backgound: You should know this!!! That is we don't know anything about the subject. I am going to treat everyone here as high school students. A live broadcast can help a speaker to reach many people just by visiting your website page. Today, I am sharing how you can use html5 video to do a live broadcast. Hello, Friends and thanks to everyone who followed me. Īlso you are most welcome to join OPEN SOURCE INTELLIGENT SYSTEM (OSINT)if you can help in open source project regarding safeguarding humans from various diseases like CORONA outbreak
You are most welcome to join my team form for joining. SourceBuffer.remove(0, (0) - 1200)Īs an added bonus this automatically gives you DVR functionality for live streams, because you're retaining 20 minutes of video data in your buffer (you can seek by simply using video.currentTime =. Limit the total buffer size to 20 minutes SourceBuffer.appendBuffer(arrayOfBlobs.shift()) Use `SourceBuffer.appendBuffer()` to add all of your chunks to the video SourceBuffer.addEventListener("updateend", appendToSourceBuffer) we want to make sure we only append one blob at a time If we requested any video data prior to setting up the SourceBuffer, SourceBuffer = mediaSource.addSourceBuffer("video/webm codecs=\"opus,vp8\"") Make sure you know which codecs you're using! NOTE: Browsers are VERY picky about the codec being EXACTLY MediaSource.addEventListener("sourceopen", function() On the `sourceopen` event, create a `SourceBuffer` Var video = document.getElementById("video") Var url = URL.createObjectURL(mediaSource) Create an object URL from the `MediaSource` NEW: Try to flush our queue of video data to the video element - generating the files on the fly in JavaScript The implementation of "nextChunk" could be various things: As before, I'm regularly grabbing blobs of video data
#Html5 video player streaming code
If you are able to wait until the SourceBuffer has been created to start grabbing video data, your code will look much nicer. I hit this limit around 1 hour on my laptopĭepending on your setup, some of this may be unnecessary (particularly the part where we build a queue of video data before we have a SourceBuffer then slowly append our queue using updateend). remove() then you'll eventually run out of RAM and the video will stop playing. If you append too much data to the SourceBuffer without calling.You can only append one blob of video data to the SourceBuffer at a time, and you can't append a second blob until the first one has finished (asynchronously) processing.These have to be declared, and must be exact, or it won't work The SourceBuffer object is very picky about codecs.This way you can keep adding new bits of video without changing the object URL. Use SourceBuffer.appendBuffer() to add all of your chunks to the video.On the sourceopen event, create a SourceBuffer.Create an object URL from the MediaSource.How do they do it?Īfter some significant Googling I managed to find the missing piece to the puzzle: MediaSource I'm certain this should be possible because YouTube and many other video streaming services utilize Blob URLs for video playback.
#Html5 video player streaming how to
As Blobs are immutable, I don't know how to keep appending data as it's received. However this will still eventually run out of data. Var concatenatedBlob = new Blob(arrayOfBlobs) I also assume I can trivially concatenate all of the Blobs currently in my array somehow to play more than one second: // Something like this (untested) Of course this only plays the first 1 second of video. Var video = document.getElementsByTagName("video") I know that a Blob URL can be generated and played like so: var src = URL.createObjectURL(arrayOfBlobs) My goal is to stream this audio/video data to an HTML5 element. So the code roughly looks like so: var arrayOfBlobs = Every second a new Blob is generated and appended to my array. Each Blob contains 1 second of audio/video data. I'm using Blobs for now but maybe a Uint8Array or something would be better). I have an array of Blobs (binary data, really - I can express it however is most efficient.
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