Free uncompressed quicktime software for linux

Audio::M4P::QuickTime is a Perl module for m4p/mp4/m4a Quicktime audio files.

Perl manipulation of Quicktime Audio files, including protected audio M4P files. Allows extraction and modification of meta information in Apple QuickTime AAC/m4a music files.

About QuickTime File Structure and Atoms

M4P is a QuickTime protected audio file format. It is composed of a linear stream of bytes which are segmented into units called atoms. Some atoms may be containers for other atoms. iTunes Music Store M4P music files are Quicktime audio files which are encrypted using a combination of information in the files drms atom and information which is commonly stored on the computer or audio player.

SYNOPSIS

use Audio::M4P::QuickTime;

my $mp4file = "file.m4p";

my $qt = new Audio::M4P::QuickTime(file => $mp4file);

my $tags = $qt->GetMetaInfo;

print "Artist is $tags->{ARTIST}n" if $tags->{ARTIST};

Libquicktime is a library for reading and writing quicktime files.
Note: libquicktime is in no way related to the original quicktime software, which can be found here. You should not expect all quicktime files created by original software to be playable by libquicktime or vice versa. You might, however, be lucky in some cases.
Furthermore, its is no longer a development goal to support as many codecs as possible. Instead we want to keep things simple and provide a library, which can create reasonable compatible Quicktime and AVI files either uncompressed (for high-end or production applications) or with decent compression codecs for end user applications.
On the decoder side, the goal is that libquicktime should at least be able to decode its own files. If other decoders can be added with a reasonable amount of labour, they will be supported as well. If you are looking for a general purpose library, which supports other formats than Quicktime/AVI and many more codecs, try gmerlin_avdecoder or ffmpeg.
Main features:
- Sourcetree upgraded with autoconf/automake/libtool and all the other stuff, people like in "standard" linux libraries.
- All 3rd party libraries (jpeg, OggVorbis) were removed to reduce download size, compilation time and code duplication on users harddisks. Instead, the sytemwide installed libaries are autodetected by the configure script.
- All codecs have been moved into dynamically loadable modules. This makes it possible to distribute closed source codecs (or codecs with an incompatible license) as separate packages.
- Unlike other quicktime libraries, we are source compatible with quicktime4linux.
- The codecs themselves are also source compatible with quicktime4linux, so porting codecs between quicktime4linux and libquicktime requires only little brain load.
- Special API extensions allow access to the codec registry. Applications can get important information about the codecs, their settable parameters etc. at runtime.
- Libquicktime 0.9.4 introduced support for handling QTVR files. QTVR is a technology to store panoramas and interactive "3D pictures" (Object Movies) in Quicktime files. For more information check out this document.
- The current implementation allows developers to write applications that display and/or create QTVR V1.0 object movies and panoramas.
Although its usable there are a few limitations:
- the newer versions of the QTVR format arent supported (yet)
- no multinode support
- no abstraction of the movie structure. That means the application writer has to take care of which frame to decode when (object movies) and how to piece them together (panoramas) (see http://developer.apple.com/technotes/tn/tn1036.html and http://developer.apple.com/technotes/tn/tn1035.html for information about that)
- no documentation
Enhancements:
- Support for text tracks. These can be either Subtitles or Chapters.
- Lots of fixes
- gettext support, German translation.

Quicktime for Linux lets you read and write Quicktime movies using several codecs. There are many Quicktime libraries for Linux; this one emphasizes reliability and accuracy while not stressing economy.
Also included are frontends to several of the codecs which dont require Quicktime encapsulation, header dump, chunk extraction, and recovery tools.
Enhancements:
- Selectively caching GOP frames to speed up reverse playback. Library upgrades for x264 and ffmpeg.

libcomprex library transparently handles automatic compression and decompression of files and archives located locally, online, or even in other compressed archives.

The API is similar to Cs built-in file access functions, which provides a smooth transition to libcomprex.

libcomprex can also open uncompressed files, making it a good replacement for the native file access functions.

libcomprex can currently open ar, bzip2, cpio, gzip, tar, and zip files. It supports basic archive writing in some formats. The API is very volatile, and development should be done against the CVS version.

Ext2 compression extension (E2compr) is a small patch against the ext2 filesystem that allows on-the-fly compression and decompression. It compresses only regular files; the administrative data (superblock, inodes, directory files etc.) are not compressed (mainly for safety reasons).
Access to compressed blocks is provided for read and write operations. The compression algorithm and cluster size (see section Clusters) is specified on a per-file basis. Directories can also be marked for compression, in which case every newly created file in the directory will be automatically compressed with the same cluster size and the same algorithm that was specified for the directory.
E2compr is not a new filesystem. It is only a patch to the ext2 filesystem made to support the EXT2_COMPR_FL flag. It does not require you to make a new partition, and will continue to read or write existing ext2 filesystems. You should consider it is only a way for the read and write routines to access files that could have been created by a simple utility similar to gzip or compress. Compressed and uncompressed files will coexist nicely on your ext2 partitions.
Usage
Basically, a file is compressed with the command `chattr +c filename, and decompressed with the command `chattr -c filename. You can also do `chattr +c (etc.) on a directory. The directory itself wont be compressed, but any new files created in that directory inherit that directorys compress flag and compression algorithm and cluster size.(1)
Use lsattr to see if a file should be compressed or not, and to see what compression algorithm and cluster size will be used.
Use e2ratio to see how much disk space is used by the compressed form compared to the uncompressed form.
You can also try the `-u or `-r options to lsattr. (The difference is that, for directories, e2ratio finds the disk usage of the whole directory tree, like du, whereas `lsattr -u only shows the space taken by the directory file, like `ls -s.)
Enhancements:
- kernel 2.4.26 and 2.6.18.5 patch sets.
- Allows repeated compress/decompress cycles.
- The ability to compile within a compressed directory tree.
- This release corrects small file sizes and fixes all known GPFs.
- It removes compiler warning messages and regularizes debug output.

ScreenKast is a screen capturing program that records your screen-activities, supports commentboxes and exports to all video formats.
ScreenKast also acts as a client for the captorials.com website that enables you to share your captured tutorial with users around the world.
Installation:
Unpack the screenkast source tarball and go into the uncompressed directory.
$ tar xvzf screenkast-0.1.tar.gz
$ cd screenkast-0.1
Build the necessary autotools-files and configure.
$ make -f Makefile.cvs
$ export CXXFLAGS="-I/usr/local/include/libinstrudeo"
NOTE: make sure you copied the libinstrudeo-source files to this directory.
See the INSTALL-file of libinstrudeo for more details on this.
$ ./configure
Compile the library.
$ make
Install the library.
$ make install
Enhancements:
- Fixed focus-order in all dialogs.
- Commentbox end now feature.
- Video properties display.
- Adjustable default commentbox settings.
- Fixed the file-open on error bug
- Improved open/close-state handling.

PCLinuxOS is one of the world�s up and coming providers of a Linux Desktop Solution. With a small but dedicated development team, PClinuxOS delivers Desktop Ready Software that harnesses the power of the Open Source Community.

PCLinuxOS Preview 81a is an English only self-booting live cd that runs entirely from a bootable CD without installing anything on your computer.

Data on the CD is uncompressed on the fly allowing up to 2 GB of programs on one CD including a complete Xserver, KDE 3.3.2 Desktop, Open Office 1.1.4, Thunderbird 1.0, Firefox 1.0, p2p filesharing and much more, all preconfigured and ready to use!

In addition to the livecd mode, you can also install PCLinuxOS to your hard drive using our easy to use livecd installer, assuming you like PCLinuxOS and it runs well on your computer.

PCLinuxOS is currently under heavy development and should be considered beta software. PCLinuxOS should work on most modern hardware and comes with advanced hardware detection. PCLinuxOS runs best on computers with at least 256 megabytes of memory.

PCLinuxOS is FREE and its released under the GPL license.

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