Detecting if flash player is currently playing? - Chrome extension - javascript

I'm trying to make a chrome extension that involves detecting whether or not an adobe flash player video is current playing or is paused. I'm fairly sure this can be done quite easily with HTML5, but any ideas about other video players?
Thanks!

I highly doubt there is a universal method.
Flash video players are opaque "programs" that differ from site to site, they don't have a universal play/paused state for the video in them exposed anyhow.
Your question is therefore like "can I detect whether there is a video player currently playing or paused in Windows", and you can guess that there is little chance for a universal solution.
There is a play/pause state of the flash object itself, I suppose, but this is not connected to the video playback. It's whether the flash object is completely frozen or not. At most you can detect if a flash object is present.

Related

Audio element play promise rejection even while audio context is in running state

I am attaching a screenshot for reference to get more elaborated idea about the problem am facing.. Kind of hell.
I am well aware about autoplay policy and have gone through possible approches which involves user interaction. Also, am not a fond of displaying any screen or button to user to make him click, never, i do not want that.
I am developing a wordpress plugin and having microphone feature which can attach to textbpx on any wordpress website, user clicks on it (user interaction) comes in.
I have also read that i need to resume suspended audio context, which am doing and as you can see in screenshot the state of audio context "running" before and after audio elements play mathod.
I am using audio element created using Audio() constructor.
Note: screenshot is a photo of mac system, I am debugging iphone xr using usb cable.
Can somebody help me out or enlighten me on what am doing wrong or there is any technical limitation.
Sigh! after a week lasted hell finally I managed to make things works.
To give an overview of solution let me first describe high level rough idea of work flow which has problem on iOS Sfari.
Problematic workflow
clickHandler --> AudioContext creation --> Playing audio using audio element.
All the audios followed by this workflow miserably failed in 'play' promise.
Solution which worked for me
clickHandler --> Play audio using audio element -> AudioContext creation --> Playing audio using audio element.
The point of interest in a solution which worked for me is you have to play audio using audio element as first line of code in 'clickHandler'. No doubt the promise still fails but subsequent audios does play.
Also, I was creating new audio element for each new audio source to be played, Which was wrong as auto-play policy imposed on 'per-element' basis. So instead of creating new audio element for each source I just create it once on page load (or whatever suits for you as one time creation) and whenever I want to play different audio file I just change the '.src' property/attribute.
So this is how It worked for me. I must mention throughout the week lasted hell, previously answered questions here and their problem specific solutions have been guiding light which gave me new perspective in a hunt for solution. Also the articles on internet, webkit , chrome, apple's documentation on Auto play policy helped a lot.

how "streamus" chrome extension is streaming only audio of youtube video?

I am creating all in one music app using multiple APIs. I want to stream only audio of youtube song. As i searched a lot but could not find actual solution. many of them says it will be against Youtube TOS. If it is so than how "StreamUs" chrome extension is working. I am not creating something this but i want to stream a song audio only as it is in above extension.
Thanks in advance.
author of Streamus here. Just dropping in to give a definitive answer.
Chrome extensions can utilize both an invisible, permanent background page as well as a visible, temporary foreground page. When the foreground page loses focus - it is destroyed and all content is unloaded from memory.
Streamus hosts the YouTube video player on the background page which gives the illusion that the video is not loaded. It pipes all commands from the foreground UI to the background page.
However, it's worth noting that this is a violation of YouTube's Terms of Service. I've been working with YouTube to figure out a good solution to the problem and am almost there with a clever way to present video in the foreground without losing the audio. :)
Unfortunately it does pull the video as well for bandwidth, but good question.
as quoted by the author in
https://www.reddit.com/r/streamus/comments/1w64wj/question/ .

Detect if the UIWebView can play video inline on iPhone ( allowsInlineMediaPlayback )

I am trying to tell if my video is going to play inline once the user starts the video (as apposed to fullscreen/in the native video player) on an iPhone in a UIWebView before the video has started. I have no way of knowing if the UIWebView has the setting allowsInlineMediaPlayback = YES as i do not know in what app or on what page my video is being displayed.
My goal is to only show the video if it can be played inline.
Is there any way to read the allowsInlineMediaPlayback setting from javascript, or detect if my video will play inline or not?
Everything I have read on the apple developers website seems to suggest that it will automatically play in full screen mode in safari. Now if they are using another app, as far as I know you do not have access to that apps UIWebViews properties. However, in an attempt to not be totally useless, here is a link to all of the methods you can query and you might find some useful information in there.
https://developer.apple.com/library/safari/documentation/AudioVideo/Reference/HTMLMediaElementClassReference/HTMLMediaElement/HTMLMediaElement.html#//apple_ref/doc/uid/TP40009355-CH18-SW27
Some more information that may be useful to you.
https://developer.apple.com/library/safari/documentation/AudioVideo/Conceptual/Using_HTML5_Audio_Video/AudioandVideoTagBasics/AudioandVideoTagBasics.html#//apple_ref/doc/uid/TP40009523-CH2-SW1

Is there a way to detect when a Flash video has finished playing?

I work on a website that embeds videos from many different websites, the number of sources run into the thousands. For YouTube, their JavaScript API allows a way to detect when the video ends and one can execute any function he wants at that time. But this will only work for the youtube videos. What about all the others?
So is there a global all applicable way to detect when the Flash video on a page has stopped playing using either javascript or action script? And by "stopped playing" I mean stopped playing when it reached the end and not just been paused half way.
P.S. There will always be one embedded video inside a <div> with the id video on the page.
Just like YouTube provides an API, those players from those external websites have to provide their own APIs as well. There isn't an easy one-size-fits-all solution that you can implement in JavaScript.

Show controls while HTML5 video is playing

Is there a way to show the controls after a video has started playing. Basically, I'm playing a video with play(), and I want the controls to stay up for a few seconds. Currently (at least on my Android device), the controls fade once the video starts.
Toggling the controls attribute doesn't work, unfortunately.
HTML5 video on Android (iOS too) is not opened inline but in the native player (i.e. outside the browser), so the <video>-tag attributes have no control over what is going to happen in the player.
I don't know if it's possible to "hack" / set-up the native player so I guess you'll have to do research on that. I don't know of any way to remotely influence the behavior of the Android application unfortunately. In case you find out something it would be nice if you could let me know btw.
Also see a recent question of mine (which is rather discouraging unfortunately).

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