Free video data software for linux

SDL::Video is a SDL perl extension.

SYNOPSIS

$video = new SDL::Video ( -name => pr0n.mpg );

SDL::Video adds support for MPEG video to your SDL Perl application. Videos are objects bound to surfaces, whose playback is controled through the objects interface.

METHODS

SDL::Video::error() returns any error messages associated with playback
SDL::Video::audio(bool) enables or disables audio playback, (on by default)
SDL::Video::video(bool) enables or disable video playback, (on by default)
SDL::Video::loop(bool) enables or disable playback looping (off by default)
SDL::Video::volume(int) set the volume as per the mixer volume
SDL::Video:display(surface) binds the clip to a display surface
SDL::Video::scale([x,y]|[surface]|int) scales the clip by either x,y factors, scales to the image dimensions, or a single scalar.
SDL::Video::play() plays the video clip, call SDL::Video::display() before playing
SDL::Video::pause() pauses video playback
SDL::Video::stop() stops video playback
SDL::Video::rewind() resets the clip to the beginning
SDL::Video::seek(offset) seeks to a particular byte offset
SDL::Video::skip(time) skips to a particular time
SDL::Video::region(rect) takes a SDL::Rect and defines the display area
SDL::Video::frame(int) renders a specific frame to the screen
SDL::Video::info() returns a new SDL::MPEG object reflecting the current status
SDL::Video::status() returns either SMPEG_PLAYING or SMPEG_STOPPED or SMPEG_ERROR

Video::Info can retrieve video properties such as: height width codec fps.

SYNOPSIS

use Video::Info;

my $info = Video::Info->new(-file=>my.mpg);

$info->fps();
$info->aspect();
## ... see methods below

Video::Info is a factory class for working with video files. When you create a new Video::Info object (see methods), something like this will happen: 1) open file, determine type. See Video::Info::Magic. 2) attempt to create object of appropriate class (ie, MPEG::Info for MPEG files, RIFF::Info for AVI files). 3) Probe the file for various attributes 4) return the created object, or a Video::Info object if the appropriate class is unavailable.

Currently, Video::Info can create objects for the following filetypes:

Module Filetype
-------------------------------------------------
Video::Info::ASF ASF
MP3::Info MPEG Layer 2, MPEG Layer 3
Video::Info::MPEG MPEG1, MPEG2, MPEG 2.5
Video::Info::RIFF AVI, DivX
Video::Info::Quicktime MOV, MOOV, MDAT, QT
And support is planned for:
Module Filetype
-------------------------------------------------
Video::Info::Real RealNetworks formats

video-entropyd is a program to add entropy data from video4linux devices to the kernel random driver.
For security reasons (when doing network traffic or generating secure keys for example) one wants as much entropy-data in the kernel random-driver as possible. The random-driver takes partially care for this. But in situations in where theres a lot of demand for entropy-data, it might not be able to gather enough entropy-data by itself.
Thats where this program is for: adding entropy-data to the kernel-driver. It does that by fetching 2 images from a video4linux-device (with a random delay in between), calculating the difference between those two and then calculating the number of information-bits in that data. After that, the data with the number-of-entropy-bits is submitted to the kernel-random-driver.
After that, the program exits (when run from crontab) or sleeps a random time before redoing the same process.
Enhancements:
- This version checks the quality of the data it feeds to the /dev/random-device to see if the data is really random.
- Extra logging has been added.

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.

Test::Data is a Perl module to test functions for particular variable types.

SYNOPSIS

use Test::Data qw(Scalar Array Hash Function);

Test::Data provides utility functions to check properties and values of data and variables.

Functions

Plug-in modules define functions for each data type. See the appropriate module.

How it works

The Test::Data module simply emports functions from Test::Data::* modules. Each module defines a self-contained function, and puts that function name into @EXPORT. Test::Data defines its own import function, but that does not matter to the plug-in modules.

If you want to write a plug-in module, follow the example of one that already exists. Name the module Test::Data::Foo, where you replace Foo with the right name. Test::Data should automatically find it.

Get YouTube Video is a service menu for KDE.

Usage:
Right-click onto a link to a YouTube video or at the background of the YouTube site showing the video and choose action -> Download YouTube Video -> ...

Install:
cd ~/.kde/share/apps/konqueror/servicemenus/
tar xvzf /path/to/youtube-servicemenu.tar.gz

I made some modifications to the YouTube Service Menu. It didnt work for me, so I looked at the source. I added a differnent method to guess the video_id and I added additional parameters to the query string to download the video.

The query-string trick is:
video_id is a part of the site-url, in which the video is embedded:

video_ids = set(re.findall(www.youtube.com/v/([-A-Za-z0-9_]+), data))

or

m = re.search(video_id=(?P [-A-Za-z0-9_]+), data)

or

m = re.search(v=(?P [-A-Za-z0-9_]+), data)

Then I do:

url = "http://www.youtube.com/watch?v=%s" % video_id

Now url points to a site in which the video will be embedded, so I can apply following regular expression to its contens:

m = re.search(watch_fullscreen?(?P .*?)&fs=1&title=" + "(?P