Video Recording with webcam on a webpage [closed] - ruby-on-rails-3

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I have a requirement of recording video via web cam, on my webpage. What are the available plugins for the same. My website is developed using Ruby on Rails framework
Regards,
Pankaj

If an HTML5 solution could be suitable for you, you can take a look to WebRTC (currently supported in Chrome, Firefox and Opera).
You can find a good tutorial here:
http://www.html5rocks.com/en/tutorials/getusermedia/intro/

The first hit on searching "webcam plugin": http://www.xarg.org/project/jquery-webcam-plugin/
As it is using JavaScript it is easy to include in Rails.
Many others appear in the results ...

Another option is to use the Nimbb widget. There are a lot of tutorials showing how to embed it into a website.

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Using Yowsup or WhatsAPI to send messages to Whatsapp groups [closed]

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I'm trying to send a message to a group from my application/ server. I want to use Yowsup or WhatsAPI. Which is better? How should I go about it?
This is what I've found for Yowsup: http://openwhatsapp.org/develop/ and https://github.com/tgalal/yowsup
This is what I've found for WhatsAPI: https://github.com/venomous0x/WhatsAPI
Also, I'm building a web application, not a native one. Is this a problem?
It will depend on the language of programming you are Good at What API uses PHP. use the update library here https://github.com/mgp25/Chat-API/tree/master
The best way to start is by downloading the examples and reading the wiki before getting started the examples are fully functional.
Yowsup is python based library and I have not had a look at it :( on any-day I would go for What API, and YES you can integrate it with your php web scripts.
Hope this helped

Google SEO: Preview not available [closed]

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The pagerank of My website is 3. But when I search sgyuan in Google, I didn't any summary of my website, and the Preview is not avaible also.
And google translate is not working also.
Anyone can help me ?
Make sure you are not using the meta nosnippet tag that prevents Google from displaying snippets and previews in search results.
Make you do not have this in your Html
<meta name="googlebot" content="nosnippet">
More info here.
http://support.google.com/webmasters/bin/answer.py?hl=en&answer=1062498
Anyway, for some site could take some days for Google to create your preview, consider wait and use Google Web Master Tools.
Please also read this article in case you use AJAX for your site
http://googlewebmastercentral.blogspot.com/2011/11/get-post-and-safely-surfacing-more-of.html

Grooveshark code [closed]

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Does anyone know what Grooveshark.com is coded in? I mean PHP, rails, flash........?
Grooveshark developer here. Grooveshark's backend is PHP 5.6, and the front end is a mixture of a ton of Javascript and a small flash shim that handles playback, https communications and a few other one-off things that were just easier to make work in flash than javascript.
This post might be helpful:
The Tech Behind the New Grooveshark
By digging through the source it looks like PHP (PHP/5.2.14) and a TON of Javascript.
Per WikiPedia:
Grooveshark is a rich Internet
application that was first written in
ActionScript using the Adobe Flex
framework that ran in Adobe Flash. In
December 2010, Grooveshark introduced
a redesign of the site that features
an interface rewritten to use HTML5,
which makes the interface perform
faster.

Is there an updated link to Pyramid[Pylons] documentation? [closed]

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I'm trying to find a link to either the .pdf or epub version of the Pyramid documentation. Both links on the website that I try time out before anything resolves.
Thank you.
Both pdf and epub version of Pyramid docs are actually hosted on repoze.org and the domaine is being migrated to a new server, should be back online soon. By the meantime you can build it yourself as html or pdf if you get dependencies installed.
https://github.com/Pylons/pyramid
You can find the documentation in all formats at http://www.pylonsproject.org/

Wiki solution for APIs documentations? [closed]

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I'm wondering if there is any Wiki solutions that perfectly fit an API documentation and let you nicely list the end points and parameters/responses.
Any recommandations?
Thanks
take a look at MindTouch.
API Documentation is one of the ways the developer site http://developer.mindtouch.com makes use of the product
Not a direct answer to this question but definitely a good starting point to help you get answered:
I had the same questions and initially thought PBWorks since that's who Twitter originally used for their API Wiki and in the past I've used Google Sites (on the Kwwika Wiki) since it's effectively a wiki.
I'm sure that if you want a more automated solution that will allow you to auto create your wiki from a build process then there will be solutions such as Read the Docs.
All this said I think a really good starting point is WikiMatrix and their Wiki Choice Wizard.