Video Editing using HTML, CSS and Javascript Only [closed] - javascript

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I need to edit a video using HTML5 and Javascript only. No flash or ffmpeg. I need to add title boards, background audio, (transitions, bumpers), borders etc.
I have tried popcorn.js but it uses CSS only and does not actually edit the video. I have even experimented with ffmpeg. FFmpeg gets the job done but takes a lot of time.

When using http://www.videojs.com/ as the video player.Some of the functionality already exists in plugins for video.js but not all yet. Here are a few plugins that could add some of the functionality you would need:
https://github.com/nicetip/videojs-speed
https://github.com/danielcebrian/rangeslider-videojs
https://github.com/xbgmsharp/videojs-rotatezoom
Both the video player and plugins are open source. But like I said you might have to do some development on your part for the full range of functionality that you require.

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How to make page load animation like in Youtube [closed]

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How can I make the page load elements before the content is fully loaded? Is there a name for this animation style? Youtube, Binance and many other sites use this kind of content loading, but all the tutorials I could find are related to the usual loading spinners
If you're using Reactjs then you can use the skeleton-loading package from here
If you want to make it with only HTML, CSS and javascript, then you can learn to make it with this video tutorial

gif animation that changes frame on download [closed]

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Is there a way, using HTML, JavaScript and/or CSS, to change each GIF animation frame on download?
For example, if download = 10kb, gif animation frame = 1
JavaScript cannot control GIF animation at all. There are some libraries which do something similar, but in fact they parse the GIF file and render its subimages on a <canvas>. You would be better off using sprites to display a changeable image on your page.
Not sure what you mean by "on download", though. JavaScript cannot interface with downloads - it is between the browser and the server at that point, with no relation to the page that started the download. But you could do a fancy sockety thing that would communicate with the server and ask it how the download is going, then updating the page.

How to synchronize and highlight HTML text to audio [closed]

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I want to highlight the text as audio plays in a web site.
As the audio plays this text will keep on highlighting, just as we see in television.
Please tell me how i can do this using any web technology.
I will be very thankful to all of you.
Thanks in advance.
there is a question similar to this one here that answers your question on how to highlight text:
Simple JavaScript Animation for 1 Second to Highlight Text?
HTML5 is good for audio:
http://www.w3schools.com/html/html5_audio.asp
These resources will hopefully get you on the right track!
You will need to create your own vtt file with the captions (text) you need. Then link it to the audio code like so:
<audio src="sampleaudiofile.ogg">
<track kind="captions" src="sampleaudiofile.en.vtt" srclang="en" label="English">
</audio>
This link from the w3c specs shows an example of vtt format and how to do it.

Best way to make image interactive [closed]

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I want to make "game" played from browser (fullscreen or not), where will be shown only photo with posibility to interact with object on it. Like pickup something, open etc.
What is best way to do it?
Use only html(5), javascript etc or something like Flash?
Thank you very much for answer
Use html5 canvas technology, there is a library called Kineticjs, which allows you to put event listeners to independent objects on canvas screen, such as putting drag&drop support for a circle drawed into canvas.
You can go for a solution that uses canvas but maybe just simple svg is enough. Both solutions involve JavaScript. HTML5 means nothing.
I would not recommend Flash because of compatibility issues.

What slideshow script is 'tumblr.com' using? [closed]

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The url is like below.
http://www.tumblr.com/
On the main page, you can see 3 images keep rotating, which I first thought was a swf, actually is not. They are the images each in <li> tag.
Is there any script out there that can do this? If then, what is it?
Not sure about the Tumblr but you can use jQuery Cycle plugin to create a lot of effects if you want.
In the source they import the file prototype_and_effects.js so they are most likely using the Prototype Framework (a popular alternative to jQuery) and script.aculo.us for the rotating banner effect, which is also included in that file.
Check out their effects demo page for examples and documentation.

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