Free niche video software for linux

Download Youtube video is a Konqueror service menu to download and encode youtube videos.
This is a hack of another service menu that stoped working (at least for me): http://www.kde-apps.org/content/show.php?content=37509
Main features:
- Download videos with the KDE file copy dialog instead of using KGet
- Automatically encode videos with mencoder, or just download
You can use ffmpeg too, just comment out the right lines in the python file, Im unable to encode some videos with ffmpeg, so mencoder is the default

mpeg2videotools is a C library and set of tools for encoding, decoding, verification and analysis of MPEG-2 video. It supports 422 Profile and High Profile bitstreams. A PSNR tool is included for comparing uncompressed video to encoded MPEG-2 video.
The library will provide a C API and be implemented in C. Platforms supported will be popular Unices and Linux, MS Windows and MacOSX. autoconf and automake will be used to achieve portability for most platforms. Decoded bitstreams will be displayed using X11 server for Unix and native Windows API for MS Windows.
Included is an encoder and decoder application which are useful for creating compliant bitstreams and decoding and verifying MPEG-ES, MPEG-PS, MPEG-PES and MPEG-TS bitstreams.
A number of important improvements over the original SSG code have already been made:
display on TrueColor visuals (16, 24, 32 bit displays)
decoding of MPEG-TS streams
decoding of broken streams which do not start with a required start code
autoconf build
MS Windows display
a library API to enable its use in other projects (ImageMagick and the AAF SDK come to mind)
MIAMI is an MPEG-2 video codec library which aims to be a complete implementation of the ISO/IEC 13812-2:2000 standard. The priority is completeness and correctness rather than speed. Included is an encoder and a decoder for MPEG-ES,PS,PES,TS bitstreams.
Enhancements:
- changed function decs to ANSI style
- added const qualifier to suitable function args

Linux Video Maker is useful for DVD/(S)VCD structure generating, ready for record on CD/DVD. Its in fact graphics interface (GUI) for transcode, mplex, DVDAuthor and few other programs...

Using of these programs for this purpose is uncomfortable and sometimes difficult especially for beginners because it involves a lot of knowledge about DVD/(S)VCD technology and video converting.

Linux Video Maker binds funcionality of 8 exterior programs and prevents from making many mistakes mainly in conversion process which can take a lot of time as AVI files uses complicated video algorithms (DIVX).

Program doesnt contain yet too many advanced options but it allow generate a standard DVD/(S)VCD structure without any problems.

Program in 2 GUI languages: english and polish !

Many users prefer Gnome Window Manager but cant go without Amarok. Gnome Play Video in Totem allows Gnome Users to view video or audio externally in Totem.

This is very useful for Video Podcasts.

iPod Video Encoder is a command line tool for convenient encoding of video files for use on iPod video. iPod Video Encoder project uses the ffmpeg tool for the actual encoding.
It features recursive encoding of all files in a directory, and generating a podcast.xml file for convenient use in iTunes.
It can be used in a cron job that periodically checks directories for new files and encodes them without user intervention.
Main features:
- Encoding of single files
- Optional specification of a/v bitrates
- Recursively encode all files in a directory
- Generating a podcast.xml for convenient use in iTunes
Options:
--version show programs version number and exit
-h, --help show this help message and exit
-R, --recursive Process directories recusively
-f, --force Force re-encode existing iPod videos
-t, --test Only encode first 10 seconds, to produce test videos
-e EXTENSIONS, --extensions=EXTENSIONS
Comma separated list of input extensions. Default: avi
-i IPODEXT, --ipodext=IPODEXT
iPod extension. Default: .ipod.mp4
-b VIDEO_RATE, --video-rate=VIDEO_RATE
Video bit rate, in kbps (default: 1024)
-a AUDIO_RATE, --audio-rate=AUDIO_RATE
Audio bit rate, in kbps (128)
-W WIDTH, --width=WIDTH
Video width, in pixels (default: 320)
-H HEIGHT, --height=HEIGHT
Video height, in pixels (default: 240)
-P, --pretend Do not really encode, just print out the ffmpeg
commands which would be executed
-v, --verbose Enable verbose output
Podcast options:
-p, --podcast Generate a podcast.xml file for each directory.
--podcast-documentroot=PODCAST_DOCUMENTROOT
Podcast document root; eg. /var/data/Movies/
--podcast-baseurl=PODCAST_BASEURL
Podcast base URL; eg. http://localhost/
Enhancements:
- Only uses the -e option for processing directories.
- The default ipod extension is now _ipod.mp4 for Windows compatibility.
- The README file has been extended with information on the .ipod-encoder settings file.
- The program no longer crashes when HOME is not set on Windows.
- --width and --height parameters have been added.

Kvm is a Konqueror service menu which allows to manage your videos without to use a graphical application.
Kvm (Kde Video Menu) service menu can be considered as a frontend of ffmpeg.
Enhancements:
- fix some bugs!