I am currently making a static site that makes use of a .mp4 video. I am using Middleman and hosting with Heroku (free plan). On my local server everything works wonderfully, but in the deployed Heroku version the video appears as a black box. In Safari and Firefox there is no container at all. All my other assets seem to be loading nicely. The video is 5.9 mb. Any idea what is going on here? Thank you in advance!!
<video class="vid-home" src="/videos/home.mp4" autoplay loop muted></video>
In theory, if you do not specify a 'poster' image to display before the video starts, the browser should display the first frame of the video:
http://www.w3schools.com/tags/att_video_poster.asp
In practice browsers seem to implement this inconsistently, and I have seen some mobile devices cases where certain videos display the first frame and others a black box, even for the same video types.
To avoid the issue you can specify your own image to be displayed using the mechanism mentioned in the link above - this should work consistently across browsers. The HTML will look something like:
<video class="vid-home" controls poster="yourImage.png" autoplay loop muted>
<source src="/videos/home.mp4" type="video/mp4">
Your browser does not support the video tag or format.
</video>
Related
I have a simple HTML5 video embed that displays a blank (white) frame when loaded on iOS. On desktop browsers (including Safari) and Android the first frame of the video is displayed.
I understand that you can avoid this by setting an explicit poster image, but I'm hoping I can avoid having to set up a transcoding service to extract the first frame of the videos. I understand that Apple has probably chosen this route to limit the bandwidth use for mobile users, but in this instance it's just overkill to set up a transcoding service.
I've played around with the preload attribute, but neither setting it to
auto or metadata works. Is there any other way to display the first frame of the video without interaction from the user?
Here is a link to a pen where I am illustrating the problem.
https://s.codepen.io/webconsult/debug/oRmQva/vWMRwadNoNvr
And here is a screenshot of how the code is rendered on iOS simulator (same on real hardware) and in Chrome respectively.
You can use Media Fragments URI
Just Append #t=0.1 to the end of the video URL
Try following code. This is work for me
<video src="video/video.mp4#t=0.5" playsinline controls preload="metadata">
<source src="video/video.mp4#t=0.5" type="video/mp4">
</video>
Below code is working fine in Mozilla & Chrome. But in Safari the video doesn't play.
<video id="v-control" width="100%" autoplay="autoplay" loop>
<source src="assets/img/web home page banner.mp4" type="video/mp4"
media="all and (max-width: 480px)">
<source src="video-small.webm" type="video/webm" media="all and
(max-width: 480px)">
<source src="assets/img/web home page banner.mp4" type="video/mp4">
<source src="video.webm" type="video/webm">
</video>
I have tried preload for the video tag and If I add controls I should click on Play button. I dont need any controls for the video so I have removed controls.
If the video is not working in Safari, but works in other browsers (Chrome, Firefox, Edge), you may be running into an issue relating to byte-range requests.
Byte-range requests are when a client asks a server for only a specific portion of the requested file. The primary purpose of this is to conserve bandwidth usage by only downloading small sections of the file as needed (a video in your case). If you inspect the Safari video request, you may notice a Range header set to bytes=0-1. This is Safari's way of testing if your HTTP servers accept byte ranges before requesting a larger chunk of data.
To fix your server config, take a look at Apple's recommendations. If you need a quick fix, you could move your videos to a different hosting server that has a proper config (and make sure to update all video source references).
Safari has started (in the last year) preventing videos with audio tracks from auto-playing by default. They never specifically publicised this as far as I'm aware, however I believe it was part of the following changes:
Safari 11 also gives users control over which websites are allowed to auto-play video and audio by opening Safari’s new “Websites” preferences pane
(Source)
The only real workarounds for this are to either remove the audio track from the video, or have it muted by default.
<video id="v-control" width="100%" autoplay="autoplay" loop muted>
If your server can detect the requester's browser, you can apply this to just Safari, leaving other browsers as they were before.
In my case i'm using angular with service-worker and Safari is not loading mp4 files.
The service worker breaks the Byte-range requests, because it is like man in the middle between safari and the server, in the process the SW change the http response code from 206 to 200, this way Safari do not download the mp4.
To solve this I bypass the service worker when I need to show an mp4 video, using angular 8 is its simple, just add ngsw-bypass=true as a query string in the mp4 url and in works. ( https://....video.mp4?ngsw-bypass=true )
The Other work around also includes, adding attribute playsInline to the video tag along with muted.
For Example, something like this :
<video id="v-control" width="100%" autoplay="autoplay" loop muted playsInline>
The playsInline allows the browser to play the video right where it is instead of the default starting point.
Keep in mind that the videos you are serving need to contain the metadata required for streaming.
In my case, I was serving dynamic videos encoded in the server using ffmpeg. Using the -movflags faststart in the ffmpeg command made the videos available to be played on Safari
Added an attribute "muted"
--- video muted autoplay---
in Chrome I have everything worked and Safari is also trying
I had a similar problem with videos not playing on Safari. The problem was my web server. I moved the video to another hosting server, loaded it from there and it worked.
e.g.
instead of:
<video src='/assets/myVideo.mp4' controls> </video>
do something like this:
<video src='https://anotherServer.com/assets/myVideo.mp4' controls> </video>
Alright, I have a server that serves a motion-jpeg stream over http. What I would like to be able to do is connect to the server and visualize the stream in a browser, preferibly inside a canvas element. Browser should be Safari Mobile.
Is it possible to take the stream with XMLHttpRequest, take the single JPEG images out and put them within a canvas element? Keep in mind that the stream is live, thus possibly endless.
Sorry to revive an old topic but i was faced with this problem and i didnt want to use an other player just native html5
I found one way to display the video inside html5 with "poster" attribute
<video width="360" height="420" controls poster="/video" autoplay>
<source src="/audio.ogg" type="audio/ogg" />
</video>
Might not be what you expected but it works.
iOs mobile Safari supports MJPEG natively over http. Is there specific reason you need it in Canvas?
see http://bridgecam2.halton.gov.uk/mjpg/video.mjpg?camera=1 on a ipad/iphone
Im in the process of making a webpage, and im trying to insert a video. The video player loads fine, and you can press play, but only the audio plays, not the video. (When previewing in chrome)
When viewing in firefox it works properly
My code is as follows...
<video width="600" height="400" controls>
<source src="ds2.mp4" type="video/mp4">
<source src="ds2.ogv" type="video/ogv">
<source src="ds2.webm" type="video/webm">
Your browser does not support the video tag.
</video>
My Doctype is <!Doctype html>
I checked the MIME type, its Video/mp4. however, one of the mime requests is in red and cancelled (When checking with google dev tools networking)
Im using microsoft expression web 4 (incase it is relevant)
If i've neglected any important information please let me know and ill update the post :) Thanks in advance for your help :)
Your problem is with the file encoding. HTML5 supports very few types and, sadly, every browser can play only part of this narrow list.
If you convert your mp4 file to H.264 encoding it will work on chrome and IE9 and above, but apparently due to patent issues, firefox does not support it but will play it if the OS can play it. This is really annoying and still require the use of players in order to play files in not-supported browsers.
I am trying to play a video in safari 5 but its just showing me a blue question mark button, no video place holder no video controls (like in chrome)
<video poster='your_pic.jpg' controls="">
<source width='480' height='360' src='/videos/my file to play.m4v' />
</video>
For safari to play videos on windows you have to install apple quick time.
http://www.agilepman.com/2010/09/how-to-make-html5-video-tag-work-in-safari-on-windows/
I'm not familiar with the syntax you have used, i.e. a source tag within the video tag. I would expect a video reference to look more like this:
<video controls="true" poster="some-image.png" src="some-video.mp4"></video>
Does the video work as expected in Chrome? Looking at the controls that do get rendered, the difference between Chrome and Safari seems to be down to embedded Quicktime (i.e. Safari uses it if it can, Chrome does not).
One other thing: if the file just doesn't play anywhere, bear in mind that .m4v files are often MPEG4 files with Apple's Fairplay DRM applied to them (although they don't have to be).