We a have jboss server running and have a basic web setup using Spring but now I would like to stream video into the browser. I am trying to use xuggle but then I read on their website that you can't put it into an Applet or use it with java webstart, so I'm assuming that means I can stream to a browser, is this assumption correct? If so does anyone else know any libraries or how I should go about doing this? If you need any more info or have questions I'll be happy to answer although I'm very new to streaming video and relatively knew to Spring.
UPDATE: So I'm able to generate a video using xuggle, and then I can embed that video in my html code... but I can't generate and stream at the same time. Does anyone have any ideas how to make xuggle push date out to my tomcat server?
You may want to look at Red5 media server.
Since you are doing jsp, just have your code write out the HTML 5 video element. That will provide basic video functionality. This will work in all HTML 5 compliant browsers as well as all mobile devices.
First of all - My English is very bad! so I hope you will understand what i'm asking...
I'm having difficulties in understanding how to use red5 to record stream from the client webcam onto the server side. I have red5 installed on a remote unix server, and i want to enable the users in my website to record stream from their webcam and store it on the server.
I have knowledge in javascript/php/java, and I know that I need to RTFM. I did try to search for some helpful information but i couldn't find any leads regarding my question.
Could you please help me with the first steps like how to connect to the remote server (I'm using Eclipse IDE for Java EE Developers).
Thank you
I advice you to take a look to openmeeting ,it's open source and use RED5 as media streaming server, and provides recording feature from client, and many other interesting features related to webcam.
I am developing a new report engine for my company, our main web application is writing by PHP 5 and running on an Apache server. The new report server which I designed to use Apache FOP 1.0 ruing on Tomcat7,so far I created My own XSLT stylesheets and I can manage to generate a PDF report from the URL and let it display in my web browser.My goal on this project is to generate dynamic report from xml file which export from the PHP application.
Could anyone explain to me the logic behind How I can give those two talk to each others. I understand I could POST the XML and XSLT as string to the report server and POST it back the result I want(like PDF).
I know this will need Java involved,and as a PHP dev. I really don't have much background about Java,if you could show me some examples or links, it would be much appreciate.
I am using Saxon-B with Fop 1.0 on Tomcat 7 for the report server.
if you need more info from me,please also leave a comment. I will add it soon.
Thanks
There are two things your going to need to study.
http://www.w3schools.com/php/php_ajax_intro.asp This is a tutorial on using the XHR object from php. You should go through that. Also, if you aren't familiar with the XHR object, I would read this as well: http://www.w3schools.com/XML/xml_http.asp
You're going to have to create a servlet capable of responding to these requests. There are various tutorials on how to create a servlet.
Here is a link to a youtube video I fall back on when I forget how to do servlets: http://www.youtube.com/watch?v=EOkN5IPoJVs
In the video, he just uses straight up javascript; so you're php code is going to be doing what the javascript did in the video (item 1 on my list).
The video uses an older version of eclipse (I think ganymede), but it is pretty close to the same process in the newest version of eclipse.
Just to be blunt, this isn't something you're going to be able to figure out and make work properly. You've probably got at least a day to a weeks worth of learning here depending on your experience and aptitude; and this will only get you something basic. The servlet you make won't be secure, it won't have user authentication...my point is don't take anything for granted.
**I need to buid distributed computing system that use java technology to access mp3 files stored in seperate servers.
In the user interface layer users can play audio files.
In the information processing layer application client implementing with database servers.(where audio and user data stored)
In the information processing I need to be able to manage audio files.
My questions are,
What is the best framework to get started?
Am I able to use different technologies like SmartGWT, SmartGWT EE, mySQL, JSF together?
What is the best mp3 player that work with java?**
(Assuming your client is a browser)
The easiest way:
On the client side use a Flash player that plays mp3 downloaded via HTTP. You can write your own or pick one on the web (there are plenty available): example.
Serve your mp3 files as static files via a web server, or write Java Servlet that serves this files. In second case you could have more control and implement progressive HTTP download.
I'll only answer question about streaming:
There's the locality-icecast project that implements an icecast streaming server in java, but it was abandoned, so you can pick up the development. You can also take a look at JRoar, it's an icecast server for ogg, but it's generally same thing and you can get some ideas from it too.
This way any player that supports shoutcast/icecast protocol will work with your server.
If you want to write your own player, you can decode mp3 using JavaLayer library.
I'm working on a web application. There is one place where the user can upload files with the HTTP protocol. There is a choice between the classic HTML file upload control and a Java applet to upload the files.
The classic HTML file upload isn't great because you can only select one file at a time, and it's quite hard to get any progress indication during the actual upload (I finally got it using a timer refreshing a progress indicator with data fetched from the server via an AJAX call). The advantage: it's always working.
With the Java applet I can do more things: select multiple files at once (even a folder), compress the files, get a real progress bar, drag'n'drop files on the applet, etc...
BUT there are a few drawbacks:
it's a nightmare to get it to work properly on Mac Safari and Mac Firefox (Thanks Liveconnect)
the UI isn't exactly the native UI and some people notice that
the applet isn't as responsive as it should (could be my fault, but everything looks ok to me)
there are bugs in the Java UrlConnection class with HTTPS, so I use the Apache common HTTP client to do the actual HTTP upload. It's quite big a package and slows down the download of the .jar file
the Apache common HTTP client has sometimes trouble going through proxies
the Java runtime is quite big
I've been maintaining this Java applet for a while but now I'm fed up with all the drawbacks, and considering writing/buying a completely new component to upload theses files.
Question
If you had the following requirements:
upload multiple files easily from a browser, through HTTP or HTTPS
compress the files to reduce the upload time
upload should work on any platform, with native UI
must be able to upload huge files, up to 2gb at least
you have carte blanche on the technology
What technology/compontent would you use?
Edit :
Drag'n'Drop of files on the component would be a great plus.
It looks like there are a lot of issues related to bugs with the Flash Player (swfupload known issues). Proper Mac support and upload through proxies with authentication are options I can not do without. This would probably rule out all Flash-based options :-( .
I rule out all HTML/Javascript-only options because you can't select more than one file at a time with the classic HTML control. It's a pain to click n-times the "browse" button when you want to select multiple files in a folder.
I implemented something very recently in Silverlight.
Basically uses HttpWebRequest to send a chunk of data to a GenericHandler.
On the first post, 4KB of data is sent. On the 2nd chunk, I send another 4K chunk.
When the 2nd chunk is received, I calculate the round trip it took between first and 2nd chunk and so now
the 3rd chunk when sent will know to increase speed.
Using this method I can upload files of ANY size and I can resume.
Each post I send along this info:
[PARAMETERS]
[FILEDATA]
Here, parameters contain the following:
[Chunk #]
[Filename]
[Session ID]
After each chunk is received, I send a response back to my Silverlight saying how fast it took so that it can now send a larger
chunk.
Hard to put my explaination without code but that's basically how I did it.
At some point I will put together a quick writeup on how I did this.
I've never used it with files of 2GB in size, but the YUI File Uploader worked pretty well on a previous project. You may also be interested in this jQuery Plugin.
That said, I still think the Java Applet is the way to go. I think you'll end up with less portability and UI issues than you expect and Drag/Drop works great. For the record, Box.net uses a Java Applet for their multi-file quick uploads.
OK this is my take on this
I did some testing with swfupload, and I have my previous experience with Java, and my conclusion is that whatever technology is used there is no perfect solution to do uploads on the browser : you'll always end up with bugs when uploading huge files, going through proxies, with ssl, etc...
BUT :
a flash uploader (a la swfupload) is really lightweight, doesn't need authorization from the user and has a native interface which is REALLY cool, me thinks
a java uploader needs authorization but you can do whatever you want with the files selected by the user (aka compression if needed), and drag and drop works well. Be prepared for some epic bugs debuggin' though.
I didn't get a change to play with Silverlight as long as I'd like maybe that's the real answer, though the technology is still quite young so ... I'll edit this post if I get a chance to fiddle a bit with Silverlight
Thanks for all the answers !!
There are a number of free flash components that exist with nice multiple file upload capability. They make use of ActionScripts FileReference class with a PHP (or whatever) receiver on the server side. Some have recently broken with the launch of FP10 but I know for certain that swfupload will work :)
Hope this helps!
What about these two
Jupload
http://jupload.sourceforge.net/
and
jumploader
http://jumploader.com/
Both are java applets but they are also both really easy to use and implement.
what about google gears?
There are HTTP/HTTPS upload controls that allow multi-file upload. Here is one from Telerik, which I have found to be solid and reliable. The latest version looks to have most if not all of your feature requirements.
You can upload multiple files with HTTP forms as well, as Dave already pointed out, but if you're set on using something beyond what HTTP and Javascript offers I would heavily consider Flash. There are even some pre-existing solutions for it such as MultiPowUpload and it offers many of the features you're looking for. It's also easier to obtain progress information using a Flash client than with AJAX calls from Javascript since you have a little more flexibility.
You may check the Apache Commons FileUpload package. It allows you to upload multiple files, monitor the progress of the upload, and more. You can find more information here:
http://commons.apache.org/fileupload/
http://commons.apache.org/fileupload/using.html
Good luck