thank you UncleCheese
you are a genius,i am new in this work so have created lots of mistake,but you helped me a lot,thank you once again,
Now my flv videos are working fine .
I have one more problem though it is not related to any module but hope you can help me in finding a solution,
In my server ffmpeg is working fine and even i can convert and take thumbnail using ffmpeg but in core php code not in silverstripe.
I tried to find the path of ffmpeg using linux command
which ffmpeg (which gives the location )
it gives me this path
/usr/bin/ffmpeg

so i have written
FLV::set_ffmpeg_root('/usr/bin/'); in my _config.php file
but it is neither converting the avi file into flv nor creating thumbnail.
i have also tried
FLV::set_ffmpeg_root('/usr/bin/ffmpeg'); in my _config.php file

but no success,

i have created the log file for ffmpeg and when I open it ,i got this written there
[2010-01-26 10:29:03] /usr/bin/ffmpeg -i /home/equestri/public_html/silverstripe/assets/Uploads/2.avi -ar 22050 -ab 32 -f flv /home/equestri/public_html/silverstripe/assets/Uploads/2.flv
[2010-01-26 10:29:03] sh: /ffmpeg: No such file or directory

[2010-01-26 10:29:03] /usr/bin/ffmpeg -y -i /home/equestri/public_html/silverstripe/assets/Uploads/2.flv -an -s 640x480 -ss 10 -an -r 1 -vframes 1 -y -vcodec mjpeg -f mjpeg /home/equestri/public_html/silverstripe/assets/video_thumbnails/2.jpg
[2010-01-26 10:29:03] sh: /ffmpeg: No such file or directory

[2010-01-26 10:29:03] /usr/bin/ffmpeg -i /home/equestri/public_html/silverstripe/assets/Uploads/2.avi -ar 22050 -ab 32 -f flv /home/equestri/public_html/silverstripe/assets/Uploads/2.flv
[2010-01-26 10:29:03] sh: /ffmpeg: No such file or directory

[2010-01-26 10:29:03] /usr/bin/ffmpeg -y -i /home/equestri/public_html/silverstripe/assets/Uploads/2.flv -an -s 640x480 -ss 10 -an -r 1 -vframes 1 -y -vcodec mjpeg -f mjpeg /home/equestri/public_html/silverstripe/assets/video_thumbnails/2.jpg
[2010-01-26 10:29:03] sh: /ffmpeg: No such file or directory

any idea of how to solve this problem...

One more small help,
I am uploading a avi file with name as 123.avi but when it is converting it is taking as 2.avi and also trying to create 2.flv,is that the normal procedure or i am again doing some silly mistake?

Thank you once again for your valuable time and help.

Hi!
I need something like your work..so I tried your solution but nothing heppen..I have this error when I try to create Video page:

Fatal error: Class 'FileDataObjectManager' not found in E:\silverstripe\mysite\code\VideoPage.php on line 12

So I try rewrite tour class in this way..but nothing

class VideoPage extends Page
{
static $has_many = array (
'Videos' => 'Video'
);

public function getCMSFields()
{
$fields = parent::getCMSFields();
$manager = new FileDataObjectManager(
$this,
'Videos',
'Video',
'Video',
array('Title' => 'Title', 'Description' => 'Description'),
new FieldSet(
new TextField('Title'),
new TextareaField('Description')
)
);
$fields->addFieldToTab("Root.Content.Videos",$manager);
return $fields;
}
}

class VideoPage_Controller extends Page_Controller
{

}

Hello bebabeba
I am giving you the step i have followed to make video working for my site.Its working on cento(LINUX) server where i have ffmpeg working as well as a linux server which do not have ffmpeg,in the second server only flv video are working(it does not convert video).

First step:
install swfupload and dataobject_manager
Second step:
create the below two pages inside mysite/code
Video.php
<?php

class Video extends DataObject
{
   static $db = array (
      'Title' => 'Varchar(100)',
      'Description' => 'Text'
   );
   
   static $has_one = array (
      // Make sure this comes first
      'VideoPage' => 'VideoPage',
/**
* This relationship could be as simple as 'Video' => 'File' provided
* FileDataObjectManager::$upgrade_video is true (defaults to true).
* However, if we know the page will only contain videos, we can simplify things by
* using a direct relationship to FLV. This will give us the benefit of not having
* to worry about the allowed_file_types setting.
*
* To make this an audio resource, set the relationship to the MP3 class, e.g.
* 'AudioFile' => 'MP3'. Audio files are also subject to automatic upgrades, however,
* based on FileDataObjectManager::$upgrade_audio. (true by default).
*
*/
      'Video' => 'FLV'
   );
   
}
?>

VideoPage.php

<?php
/**
* Before getting started, be sure to test your FFMPEG installtion by adding:
* FLV::echo_ffmpeg_test();
* to your _config.php!
*
*/

class VideoPage extends Page
{
   static $has_many = array (
      'Videos' => 'Video'
   );
   
   public function getCMSFields()
   {
      $fields = parent::getCMSFields();
      $fields->addFieldToTab("Root.Content.Videos", new FileDataObjectManager(
         $this,
         'Videos',
         'Video',
         'Video',
         array('Title' => 'Title', 'Description' => 'Description'),
         new FieldSet(
            new TextField('Title'),
            new TextareaField('Description')
         )
      ));
      return $fields;
   }
}

class VideoPage_Controller extends Page_Controller
{

}

?>

now make dev/build

create a template page named as VideoPage.ss and place the page inside your theme/Layout

   <% control Videos %>
      <div class="link">
         <div class="description">
            <h3>$Title</h3>
            <p>$Description</p>
         </div>
         <div class="resource">
          <% control Video %>
         
             $VideoPopup(200x200 , 400x400)
            
<% end_control %>            
         </div>
      </div>
   <% end_control %>

to set the width and length of video you can add the below code in _config.php inside mysite
FLV::$video_width = 300;
FLV::$video_height=200;

this code works fine for me,hope this help you

UC what ever i i know about silverstripe is because of you.you have helped me a lot.i feel glad if i can help fellow user of silverstripe