Free encoders software for linux

smp-encode is a compact utility that encodes groups of audio files in parallel to make use of multiple CPUs with single threaded encoders.
smp-encode project supports supports OggEnc and LAME.
Usage:
smp-encode is invoked with 3 mandatory arguments.
-e < encoder > where encoder is one of the available builtin modules, "lame" or "oggenc" as of now. encoder arguments are hardcoded in encoder.cpp, but in the future these will be defined on smp-encodes commandline.
-p < N > where N refers to any number over over 0. This will cause smp-encode to generate N processes to be used to encode the given files. Given files are evenly distributed.
The last mandatory argument is a choice between a list of files, either given explicitly or via wildcard (eg. ./*.wav) or the -d < directory > argument.
As of now, successful invocations dont display anything during runtime, in the future some progress info will be reported.
Compile:
You should be fine with just running make and then make install. This will generate a program named smp-encode that is stripped. And throw it in /usr/local/bin
If you need to add encoders or edit the argvs of them, encoder.cpp is where all that stuff is done.
Enhancements:
- A complete rewrite using the GTK+2.0 UI.
- Thread control (pause and cancel).
- Many options from LAME and oggenc are implemented in the GUI.
- Progress bars indicate individual thread progress.
- Many other tweaks and bugfixes related to the rewrite.

PHPCoder is a web based front-end to the Turck MMCache encoding functions, which are similar to the Zend Encoder product.

Turck MMCache is a free open source PHP accelerator, optimizer, encoder and dynamic content cache for PHP. It increases performance of PHP scripts by caching them in compiled state, so that the overhead of compiling is almost completely eliminated.

Also it uses some optimizations to speed up execution of PHP scripts. Turck MMCache typically reduces server load and increases the speed of your PHP code by 1-10 times.

PHPCoder enables you to encode your PHP scripts and applications into non reversible byte-code, thus preventing users of your programs from viewing or alterting the source code while having full functionality.

Another excellent use for PHPCoder is to encode your applications PHP configuration files, that way someone viewing your source code does not see your databae login and password information.

In addition to encoding PHP scripts PHPCoder allows you to set restrictions on the encoded scripts, you can lock a script to a particular server IP address, server host name, visitor IP, or even place a time limit on the script so it will expire after x amount of time.

PHP Coder also allows you to specify Text, HTML or PHP code that should be prepended and appended to each file before it is encoded, allowing you to easily and securely implement your own licensing scheme.

To use your encoded scripts your clients simply install the free Turck MMCache or the Turck Loader.

KmPg2 is a very simple to use MPEG2 encoding wizard that allows the user to create high quality DVD compatible MPEG2 streams, without requiring any technical knowledge.
Creating high quality MPEG2 streams involves a lot more than simply feeding the input video to mpeg2enc/transcode/mencoder/etc.
The input video needs to be carefully prepared by pulling it through a chain of stream processing tools like low-pass filters, color correction filters, static and dynamic chroma and luma noise filters, scalers, and so on.
This processing chain needs to be tuned in such a way that all irrelevant data (like noise) is removed before the video enters the encoder. KmPg2 uses the video processing / encoding tools from the MJPEGTools project to achieve this.
KmPg2 features a profiler that enables the user to interactively create custom pre-processing pipelines that are optimised for a specific type of video material. These preprocessing pipelines (profiles) can be stored and used with the actual encoding wizard.
For example, you could create a profile that is designed especially for restoring a single aging VHS tape, or you could create a profile tuned for your digital camcorder and re-use it for every new recording that needs to be encoded.
At this moment KmPg2 accepts only one format of input video: Raw Sony DV video streams. This is the video format that most people use nowadays for high quality video processing and editing. Support for using AVI files for input is expected in future versions.
Main features:
- Produces DVD compliant MPEG2 streams
- Seperate chroma/luma noise filtering
- Low-Pass filtering support
- Contrast/Brightness/Saturation correction
- White balance correction
- Special black-and-white mode
- Crop image to Widescreen (16:9) or Panavision (2.35:1)
- Output conforms to Rec.601 specifications
- Both constant bitrate and variable bitrate encoding
- Unsharp masking
- Supports progressive and interlaced source material
- Support for removing overscan area
- Provides feedback to user about average/peak bitrates
- Show output on screen while encoding
- Generate encoding shell scripts
- Generate quick preview-encodings of parts of source video

Fenice is a multimedia streaming server compliant with the IETFs standards for real-time streaming of multimedia contents over Internet. Fenice implements RTSP - Real-Time Streaming Protocol (RFC2326) and RTP/RTCP - Real-Time Transport Protocol/RTP Control Protocol (RFC3550) supporting the RTP Profile for Audio and Video Conferences with Minimal Control (RFC3551).
Fenice supports the following encoding standards:
Audio
- MP3 (MPEG-1 Layer III) (RFC3119)
- OGG/Vorbis (work in progress)
Video
- MPEG-1/2 (RFC2250)
- Preliminary support for MPEG-4 (RFC3016, RFC3640)
- OGG/Theora (work in progress)
The main characteristic of Fenice is that it is adaptable to the state of the network gotten through the technique of the dynamic coding change.
Fenice is also able to manage live streaming sessions using external real-time audio/video encoders such as lame, ffmpeg or mjpeg-tools, even capturing audio and video streams from live-recording remote hosts (with Felice - Fenice Live CEaseless).
Fenice is the worlds first streaming server supporting Creative Commons licensing meta-data for audio/video streaming.
Enhancements:
- Log support via file or sysconfig was added.
- MPEG-4 support was finished, and works best for stored contents.
- The annoying 100% CPU bug was fixed.
- Fenice should now run smoothly and reliably in almost every condition.
- Various bugs were fixed.
- Fenice is GCC4 compatible.

Asunder is a graphical CD ripper and encoder. It supports WAV, MP3, Ogg Vorbis, and FLAC. It has CDDB support and can create M3U playlists.
It uses GTK2 and is desktop environment independent. It is multithreaded, so it can rip and encode at the same time. It aims to make CD ripping as quick and easy as possible.
Main features:
- Support for WAV, MP3, Ogg Vorbis, and FLAC audio files
- Uses CDDB to name and tag each track
- Can encode to multiple formats in one session
- Creates M3U playlists
- Allows for each track to be by a different artist
- Does not require a specific desktop environment

xmms-crossfade is an output plugin for XMMS. Its main feature is automatic crossfading. xmms-crossfade also removes the gaps between tracks, to play whole MP3 albums without any audible interruption.
xmms-crossfade supports OSS via a builtin driver, and any other platform by using existing output plugins. As of version 0.3.9, the Audacious and BMP players are also supported.
Main features:
Crossfading:
- Crossfade between two songs, i.e. fade out the end of the current song while fading in the beginning of the next for a smooth transition. Length and volume of the fadings can be adjusted separately for fading in and out.
Fadein/Fadeout:
- Smoothly fadein/fadeout at the beginning or end of playback.
Continuous output:
- Keeps the audio device opened when switching from one song to the next. When used with the Gap-Killer, this allows for seamless playback of whole albums without any audible interruption between the tracks.
Gap-Killer:
- Removes the short gaps of silence at the beginning and/or end of mp3 files. These gaps are caused by some mp3-encoders.
Automatic detection of live albums:
- Automatically detects live albums and pre-mixed tracks which already are crossfaded. For those tracks, crossfading can be disabled automatically.
High quality:
- XMMS-crossfade can take special care to avoid the clicks some soundcards produce when suddenly being stopped. Also, it can improve quality when seeking within a song.
Secondary effect plugin:
- XMMS-crossfade allows you to select a second effect plugin. This is usefull for example when using the volume normalizing plugin together with the icecast plugin.
Enhancements:
- This release adds support for audacious-1.3.0.
- There was a change in that version that broke compatibility.

cxxtools is a library of unrelated, but useful C++ classes.
It contains an argument-parser, a base-64 encoder/decoder, a C++ interface to iconv, md5-stream for easy MD5 calculation, threading classes, socket classes, a dynamic exception-safe buffer, a wrapper for dlopen/dlsym, a pool template (e.g., for a connection pool in a multi-threaded application), query_params, and a class for easy parsing of CGI parameters (GET and POST) in a CGI program.
Enhancements:
- This release adds a policy-based smart pointer and a parser for property files.
- The parser for INI files was rewritten.