According to Google, as of Chrome 55, Flash is disabled for sites unless they "only support flash." But, I don't see any explanation of what that means exactly.
We have a lot of legacy flash content. And, for the most part, we can host that content in a pretty thin wrapper. But, the DOM clearly doesn't consist only of an embed or object tag. It has a title, a div container for positioning, perhaps some analytics, etc..
At what point, from a technical perspective, does it transition from/to being "only" flash with respect to Chrome 55 and 56+?
Our current situation is that our new, thin wrapper "works for me." But, "works for me" is not an acceptable response to customer complaints. Until our very lengthy flash conversion project is done (1 to 2 years from now), we need to know where the technical line in the sand is.
If there's something official from Google or line in the Chromium source that makes it clear, that would be ideal.
after chrome version 55+, chrome prefer html5 over flash by default.
Before 55 version, client easily deactive/ active flash plugin by chrome://plugins. Unfortunately this removed. Also chrome changes the plugin list api. Before 55 version, we can check flash is in plugin list or not , now we can not check the plugin exist . About one year, chrome keeps supporting flash, but it will perefer html5 if your player support html5 too ( ie : rtmp for flash, hls or mpegdash for html5 )
chrome://flags/#prefer-html-over-flash
here it shows that html over flash is default ( default is active ).
Also chrome generate a module that
chrome://site-engagement/
Here is a rank about website, you can update the value, if 100% , flash automatically chosen. Otherwise flash is blocked.
For more details
read this presentation.
https://docs.google.com/presentation/d/106_KLNJfwb9L-1hVVa4i29aw1YXUy9qFX-Ye4kvJj-4/edit#slide=id.p
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I have two questions. If you can, please answer...
Could you show an example, where used plugin by object element in HTML?
Previously we could add video for flash player by using object, but now that doesn't used. Can you show an example, where used any resource for any plugin?
The simple answer is that browser plugins are a dead technology.
The term generally refers to applications implementing NPAPI (the "Netscape Plugin Application Programming Interface"), originally implemented by the Netscape browser (predecessor of today's Firefox) and then copied by other browsers. It essentially gives complete control over part of the web page to an external program, which makes it very flexible, but very hard to make secure and stable.
In 2015, Google Chrome removed support for NPAPI, using a new API to support Adobe Flash; Firefox blocked any plugin other than Flash in 2017. In 2021, Adobe ended support for Flash, and pushed out an update automatically uninstalling it from user's computers, so these exceptions are no longer needed.
How does chrome know which tabs are playing some sound? Alternatively, how does chrome know which tabs to put the speaker sign on?
This article may be useful:
From ghacks.net:
"Google Chrome uses an internal version of Adobe Flash which Google can use to determine when Flash is being used for audio playback.
Mozilla does not have that luxury. While it is working on a patch to display indicators when HTML5 is being used for audio playback, it cannot do anything about plug-in contents on its own."
Assuming that's correct, then from there it's not hard to imagine that if they know of every single instance of flash being used for audio playback, that they probably have an associated property indicating which tab it is on.
I have a jQuery Mobile website I created for a friend/client of mine. It only has 6 pages or so (2 of them are dialog windows). The site has HTML5 video with fallback for flash support via the videojs library. All videos are encoded properly in mp4, ogv (theora), and webm and so far play on every device I have used.
My problem lies bandwidth, the purpose of the program really needs to be an application because these are informational videos that may need to be viewed at any time, even with no web access (web access is required for first login to verify credentials).
I was left with 3 solutions, try writing native apps for all the platforms myself in their native languages, use Sencha Touch (which I am comfortable enough with extJS to do), or taking my existing jquery mobile app that is 100% functional including log-in and some backend package management to assign users a package of videos (there are multiple packages each with between 8-20 videos), and follow the jQuery Mobile tutorial for getting your app ready for PhoneGap, I believe its only enabling two settings, and both are to enable "cross-domain" requests, since my current web app would be running as localhost, it would see the scripts as external pages.
My main question/problem is for one, I have never used PhoneGap; aside from their Hello World android tutorial, and I know there are other all-in-one frameworks out there now: PhoneGap, Titanium, Corona, Adobe Flex (which I am installing while writing this tutorial, to see what it has to offer. If it has features like encoding videos automatically for the target device (video resolution changing), or even has local video playback features at all that may work.
Does anyone know which of the current frameworks have the ability to install a set of videos to the sdcard, (totaling around 6mb per install), and play them natively (by that i mean, in the devices native player, not inline inside of a webview). Which on android phones anyways, my current videojs based player plays the files natively in everything I have tried it on.
I just need a push in the right direction, if there is a PhoneGap plugin that I don't know about that allows videos to be played from the sd card, that would be terrific. Although I am not very happy with the speed of the android and blackberry webview controls. So something that uses 100% native controls would be great. I hope you guys can come up with some ideas, you can see the current app in action at m.yourvideobenefits.com email:abc#tool.com password: demo
You should view it from your phone if you want to see it properly, but if you do not have a smart phone; keep in mind that when viewing this page certain desktop browsers, the videos become their actual size after they are through loading. This is because i have autoload="true" in the video tag (which is ignored on most phones, but believe it or not, setting autoload="true" is what actually allowed the videos to not play inline on certain devices. A bug on the device, I am sure...but without this tag the videos played inline on iPhone 4 with the latest iOS version.
You could do it very easily with phonegap; you already have your web page, so it would be much less work, probably.
You could get the videos from inside your apps bundle in ios, and then it wouldn't be hard to select the one with the best resolution for the device being used. You could also download the videos at the perfect format and resolution the first time your app plays from your server using the file api. That convined with the storage api is nice for actualizations.
There's a plugin I use for android, because video tag is sometimes bugged or doesn't work at all in older versions, https://github.com/phonegap/phonegap-plugins/tree/master/Android/VideoPlayer.
It only plays from web or sdcard, but that's rarely too bad.
I can't help you with black berry, but I'm pretty sure there must be a way of doing it. And, anyway, appcelerator doesn't support it yet, so you would probably had to do it natively. Even if there isn't a plugin for black berry, you'd probably have to chose between native developement and html5 player inside phonegap. I won't give you my opinion about it here, for I'm not the one to give it and Stack Overflow says I shouln'd give it anyway.
I need to capture an image from a webcam (tethered camera, etc.) into a form or html5 canvas so that I can save the image to the server. Also, I would like to be able to preview the image live in the page.
For example, I have a browser running at a registration check in station. I would like to take a picture of the attendee currently standing in front of the table, and submit that image into the database. Then I can use that image to print the attendee's badge with their picture on it.
I'm using rails and paperclip, though I doubt that matters.
Anyone done this before, or have some ideas how to do it?
There is a plugin for jQuery entitled 'jQuery Webcam Plugin' that provides a friendly and easy way to interact with a webcam. It actually relies on a small flash component (unfortunately), but it does a great job of making the interaction easy - as well as providing functionality to copy imagery direct into an HTML5 canvas.
Again, it's unfortunate that it relies on Flash, but I think any reliable solution is going to need flash at this point in time.
The plugin is available here: http://www.xarg.org/project/jquery-webcam-plugin/
At present, if you want to interact with a web cam from a web page you need to look at using a plug in. Flash has a mature interface to web cams, so it would be my first choice of tool.
There used to be a spec for native web cam support in HTML 5, but it has been spun out into its own, independent, specification. Currently there is no browser support for it outside of experimental Opera builds.
Android >=3.0 (on plenty of tablets and one phone soon) is supposed to support this. Searching for "html media capture" and "device api" will get you a lot more information.
On the not-even-alpha bleeding edge side, there are things like webrtc and the mozilla rainbow plugin.
I'm setting up a website which ultimately displays videos. The video files are all .mpg and requirements prevent me from converting these to another format such as flv. So far I have been playing around with Windows Media Player but have found that it doesn't play nice with non IE browsers. The problem which arises is that although the video will play, it doesn't shrink itself to fit in the WMP container and so only the top corner is visible. This problem goes away if I download the np-mswmp plugin for Firefox however it is a manual install and I'd rather not leave it to the user. Once the Firefox plugin is installed, Chrome also plays the files correctly but I doubt that the average user would ever think to do this.
Is there a better way to embed .mpg files into a web page, an alternative player which doesn't require file conversion? I have had a play with Quicktime but it only ever shows a Q with a question mark imposed over it, even when I associate Quicktime with .mpeg files. Any advice would be appreciated!
Thanks,
James
I'm sorry to say there isn't a good way to do cross-browser video without being able to force your users to install something. That is why every video site uses flash, since it's the nearest thing to a standard - but of course flash has some gaps in coverage, the most significant being iPhones.
Windows Media Player has only about 70% penetration and Internet Explorer somewhat less. By going this route you will end up with 1 in 3 users unable to view your videos.
Either bite the bullet and move to Flash as a video player or just give your users a download link. A download link is a very easy way to support almost every user, if you can do that.