Free audio and video software for linux

MPEG Audio/Video Player is a simple MPEG and AC3 player for Linux, BSD, and Windows systems.
It plays MPEG transport, program, and elementary stream files. It also has basic DVD support (using libdvdnav on Linux/BSD sytems only).
Main features:
- Runs on Windows, Linux, and BSD systems.
- Plays MPEG Transport Stream, Program Stream, and Elementary Stream files.
- Basic DVD support (with libdvdnav on Linux/BSD systems only).
- Decodes MPEG 1&2 Video, MPEG Layer 2 Audio, and AC3 audio.
- All decoders use only integer operations, for faster performance.
- Flexible, and easy to use decoders, that can decode streams in chunks as small as 1 byte (buffering is not necessary).

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

Rainbyte Video Converter is a Kommander script which helps you convert video and audio in an easy way.

Its based on Kommander, mencoder and ffmpeg and you can convert from/to any format supported by those programs.

Well, I hope that it will be usefull for you, thanks for all.

Perl Audio Converter (PAC) is a tool for converting multiple audio types from one format to another. It supports MP2, MP3, Ogg Vorbis, FLAC, Shorten, Monkey Audio, FAAC (AAC/M4A/MP4), Musepack (MPC), Wavpack (WV), OptimFrog (OFR/OFS), TTA, LPAC, Kexis (KXS), AIFF, AC3, Lossless Audio (LA), AU, SND, RAW, VOC, SMP, RealAudio (RA/RAM), WAV, and WMA.
It can also convert audio from the following video formats/extensions: RM, RV, ASF, DivX, MPG, MKV, MPEG, AVI, MOV, OGM, QT, VCD, VOB, and WMV. A CD ripping function with CDDB support, batch and playlist conversion, tag preservation for most supported formats, independent tag reading/writing, and extensions for Konqueror and amaroK is also provided.
Enhancements:
- Added: MP4::Info dependency IO::String to pacpl-install
- Updated: License GPLv3
- Bug Fix: Directory conversions. pacpl was claiming the directory was empty and prompting to use the --recursive option...Thanks to John Meyer for the report.

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.

RMovie is a Ruby extension for accessing and retrieving information from video and audio files.

RMovie can access many video formats (.mov, .avi, .mpg, .wmv, etc.) and can output movie frames to RMagick as images.

Installation:

# build the quadrupel objects
cd quadrupel
make
cd ..

# build the rmovie extension
ruby extconf.rb
make

# install extension
[ become root ]
make install

NewVideoRecorder is a high quality video capture toolkit for Linux. At the moment it supports v4l1 and v4l2 devices as video sources, oss and alsa as an audio source. It can output to quicktime (in RTjpeg, YUV2, or RAW format, and most ffmpeg formats), AVI (in DivX format), NuppelVideo format, MPEG-1, and streaming multicast/unsicast.
nvrec includes deep buffering to minimise frame drops, in high load situations, and a smooth framedropping algorithm to keep the video as smooth as possible if you do have to drop frames.
It also has a audio "stretcher" to write the exact amount of audio to the output file (this compensates for lack of clock synch between video and audio cards). nvrec is written in an extremely modular way, to make it easy to integrate with existing applications, or add your own output formats.
This engine makes use of deep buffers (2 seconds+) for audio and video. The video is buffered in the driver to avoid too many costly userspace copies. The audio is buffered in a userspace ring buffer. This is expensive, but neccessary, as OSS drivers are often limited to very short buffers.
All buffers are accurately timestamped as they are received: video buffers by the kernel, and audio buffers by gettimeofday() (offset by the current depth of the kernel buffer). At the start, audio or video is dropped until both are in sync, and from then on, only audio and video timestamped for the same period is processed.
Since there will be clock drift between the audio capture and video capture cards, the audio stream is dynamically warped so that exactly the right amount of audio is placed in the output file for each video frame written to the file (NOTE: At the moment the warping is done by a simple line algorithm - could do a lot better here). A simple P-I controller adjusts the warping factor to keep sync.
The code tries to keep the internal buffers between 10% (to make sure we never run out of data) and 40% (to make sure we don;t have uncontrolled dropping) full. When the buffer is less than 10% full, it simply sleeps 1 frame period. When the buffer is more than 40% full, it gradually drops more frames per sencond, until a stable point is reached.
The code is designed to be very modular, so there should be no problem adding an alsa core.
There are currently five output cores: qtfile_core, which produces RTjpeg, YUV2 or RAW encoded quicktime files; divxfile_core, which produces DivX encoded avi files; nuvfile_core, which produces NuppelVideo0.4 files; rtefile_core, which produces mpeg-1 program streams; and ffmpegfile_core, which produces a lot of types of files, like mpeg4, mpeg2, mpeg1, wmv, dv, h263... (see documentation in ffmpeg.sf.net).
Enhancements:
- Added support for recording radio (in devices with support for that
- Fixed ffmpegrec support, updating the code to use the new libavcodec api and new libavformat api (ffmpeg cvs release 2004-07-09 checked)
- Fixed some bugs in the calls to v4l2 api (kernel 2.6.4).
- Added support for split files on the fly, by specify the size of each chunk and the basename used for each file.
- Fixed some compile warnings. The code compiles without problems in gcc 2.95 and gcc 3.3.

Cortado Streaming applet is a Java applet which supports decoding of Ogg Vorbis, Ogg Theora, MJPEG and Smoke codecs directly in a browser window. Both audio and video are supported.
It contains:
- JST, a port of the GStreamer 0.10 design to Java
- jcraft, a copy of the JCraft JOgg/Jorbis code
- jheora, an implementation of Theora in Java
- codecs (currently only containing the Smoke codec, a variant on Jpeg)
- JST plugins for:
- HTTP source element
- Ogg and Multipart demuxers
- Theora, JPEG and Smoke video decoders
- Vorbis and MuLaw audio decoders
- Java 1.1 sun.audio API audio sink
- Java 1.4 javax.sound.sampled API audio sink
- examples
- applets
This release has support for:
- seeking in on-demand files
- the above-mentioned plugins
- basic HTTP authentication
- buffering