ClipBucket is an Open Source and free script that will let you start your own Video Sharing(Youtube Clone) website in matter of minutes, ClipBucket is the fastest growing script with most video sharing Portal system websites and social networking features.

Requirements:
- PHP Configuration
- safe_mode = off
- max_execution_time = 1000 (recommended to prevent timeouts during video upload/conversion)
- session.gc_maxlifetime = 14000 (recommended to prevent session expires during video upload)
- open_basedir = (no value)
- output_buffering = on
- upload_max_filesize = 100M (recommended maximum video upload size in MB)
- post_max_size = 100M (recommended maximum video upload size in MB)
- GD Library 2 or higher
- FFMPEG Make Sure FFMPEG is Fully Updated because script will give errors with old versions of FFMPEG
- Mplayer + Mencoder
- Flv2tool
- Libogg + Libvorbis
- LAME MP3 Encoder
- CGI-BIN Access
- Apache mod_rewrite Enabled
- PHP Configuration (php.ini): register_argc_argv = On
- Must be able to run PHP from the command line (CLI) with exec()
- Allowed execution of background processes with exec("binary > /dev/null &")