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Veejay HOWTO

Matthijs van Henten ( cola(AT)cb3rob(dot)net )
Niels Elburg ( nielselburg(AT)yahoo(dot)de )
v1.0, 30 March 2003
v1.1, 22 June 2003
v1.2, 26 August 2003
v1.3, 9 November 2003
v1.4, 24 May 2004
v2.0, 25 July 2004
v2.1 27 January 2005
v2.2 22 April 2005
v3.0 8 March 2008

This document describes how to use veejay, a visual 'music' instrument for Linux/GNU

1. Introduction

1.1 Disclaimer

No liability for the contents of this documents can be accepted. Use the concepts, examples and other content at your own risk. As this is a new edition of this document, there may be errors and inaccuracies, that may of course be damaging to your system. Proceed with caution, and although this is highly unlikely, the authors do not take any responsibility for that.
All copyrights are held by their respective owners, unless specifically noted otherwise. Use of a term in this document should not be regarded as affecting the validity of any trademark or service mark.
Naming of particular products or brands should not be seen as endorsements.
You are strongly recommended to take a backup of your system before major installation and backups at regular intervals.

1.2 Acknowledgements

The following peope have been helpful in getting this HOWTO done:

Matthijs van Henten ( <cola(AT)cb3rob(dot)net> )

1.3 Audience and Intent

This document is targeted at the Linux user interested in learning a bit about veejay and trying it out.

1.4 Revision History

Version 1.0 First version for public release
Version 1.1 Updated Howto to match version 0.4.0. Revised chapters 2.2,4.4, 5.3 and 6
Version 1.2 Updated Howto to match version 0.4.6. Revised chapter 2.1,2.2,3.3
Version 1.3 Updated Howto to match version 0.5.3.
Version 1.4 Updated Howto to match version 0.5.9
Version 2.0 Partial re-write to match version 0.6
Version 2.1 Updated Howto to match version 0.7.2
Version 2.2 Updated Howto to match version 0.8
Version 3.0 Large rewrite to match version 1.1

1.5 New versions of this document

You will find the most recent version of this document at actual code repository :
github -> veejay -> doc -> veejay-HOWTO.md

If you make a translation of this document into another langauge, let us know and we'll include a reference to it here.

1.6 Feedback

We rely on you, the reader, to make this HOWTO usefull. If you have any suggestions, corrections, or comments, translations, please send them to us ( veejay-users@lists.sourceforge.net ), and we will try to incorporate them in the next revision. Please add 'HOWTO veejay' to the Subject-line of the mail.

Before sending bug reports or questions, please read all of the information in this HOWTO, and send detailed information about the problem.

If you publish this document on a CD-ROM or in hardcopy form, a complimentary copy would be appreciated. Mail us for our postal address. Also consider making a donation to the Veejay Project to help support free video editing software in the future.

1.7 Distribution Policy

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts , and with no Back-Cover Texts. A copy of this license is included in the section entitled "GNU Free Documentation License".

2. About Veejay

Veejay is a visual instrument and realtime video sampler. It allows you to 'play' the video like you would play a Piano and it allows you to record the resulting video directly to disk for immediate playback (video sampling).

Veejay consists out of several packages:

veejay-server
veejay-client
veejay-utils
sendVIMS
veejay-themes

veejay-server	This is veejay
veejay-client	This is reloaded, the graphical user interface to veejay
veejay-utils	Commandline utilities to interface with veejay
sendVIMS	Simple VeeJay client for Pure Data
veejay-themes	Themepack for reloaded

2.1 Features

General

Free Software (GNU GPL)
Servent architecture
Soft realtime
Frame accurate
Loop based editing
Native YUV processing
Crash recovery

Media

Codecs: MJPEG, MPNG, DV, YUV (raw)
Containers: AVI, Quicktime, rawDV
Devices: USB webcams, DV1394, TV capture cards, etc.
Support for unlimited capture devices
Support for Image files (PNG ,JPEG, TIFF, etc)

FX processing

161 built-in FX, many unique and original FX filters
60 Livido filters
FX chain (20 slots) with Alpha Channels
All FX parameters can be animated.
Mix up to two layers per FX slot

Editing

Non destructive edit decision lists (cut/copy/paste/crop video)
Sample editor
Sequence editor
Live disk recorder (sampling)
Full deck save/restore
Live clip loading
Live sample sequencing
VIMS event recording/playback
Various looping modes including bounce and random
Playback speed and direction
Video scratching
Change in-and out points of a sample (marker)
Slow motion audio / video
Fast motion audio / video
Dynamic framerate
Random frame play
Random sample play
Access up to 4096 video samples instantly
Full screen or windowed mode
Perspective and foward projection

Output

Audio trough Jack (low latency audio server)
SDL video
Headless (no video output)
YUV4MPEG streaming
V4L2 loopback devices
Network streaming (unicast and multicast)
Preview rendering
Image grabbing

Interaction

Programmable keyboard interface
VIMS (tcp/ip)
OSC (udp)
PureData trough sendVIMS external
MIDI

Viewing

Full screen or windowed mode
Perspective and foward projection
Twinview/BigDesktop
Split-screen video wall

Plugins and more...

Support for Frei0r plugins
Support for LiVIDO plugins
Support for FreeFrame plugins (only for 32 bit systems!)
Android server!

2.2 Hardware configuration

Veejay requires at least a linux kernel 2.4.x, 2.6.x or later, a lot of diskspace and a fast CPU. Depending on the speed of your machine, your milage may vary. See the list below for a few systems veejay was reported to work on :

An Intel Pentium 4 3.0 Ghz HT/512 MB DDR RAM with a ATI Radeon 9600 XT
A dual celeron 400 Mhz/512 MB RAM with a voodoo3 and second pci card.
An Athlon 750 Mhz with voodoo3 and second pci card.
An Athlon 750 Mhz with Matrox G400 Dualhead(TVout using X11/SDL or DirectFB)
An Athlon 850 Mhz and Matrox G550 Dualhead( TVout support through DirectFB)
An Athlon XP 1600 Mhz and Matrox G550 Dualhead( TVout support through DirectFB)
A Pentium 4 2.2 Ghz and Matrox G550 Dualhead( TVout support through DirectFB)
A Pentium 4 3.0 Ghz and ATI Radeon 9600 XT/ (no TVout yet)
Sony Playstation 2 (MIPS, little endian) (but runs very slow +/- 20 fps)

Video Editing requires a lot of diskspace, make sure you you have enough diskspace available for your project. Real Time video editing require even more, the video file codecs used must be full frame (only I‑frames). If you are going to use the recording functions, make sure you have sufficient free disk space available. Otherwise you are quite safe, veejay does not change your original video or fill your harddisk with needless temporary files. Neither does it waste your resources (unless you fill the effect chain with a lot of effects)

3. Installation

3.1 Dependencies

Before you install Veejay, you should install the following software packages. Although none of them is required, Veejay will be much less usable without them.

(required) mjpegtools >= 1.9.0
(required) The XML C library 2 for gnome >= 2.5.4
(required) ffmpeg (libavcodec, etc) >= 0.50.0
(optional) libdv >= 1.02
(optional) The SDL library >= 1.2.3
(optional) JACK low latency audio server >= 0.98.1
(optional) DirectFB >= 0.9.17
(optional) FreeType >= 2.1.9
(optional) GTK >= 2.6.0

On newer distributions, some of the listed software is already installed but you may be missing the -devel- packages! (especially on redhat, suse and debdian systems!!)

You can find the websites of these projects in Other Resources.

3.1.0 From source

You can compile the following packages from source if your distribution does not include them :

libavcodec, libavutil, libswscale and libavformat from the FFmpeg project
mjpegtools

FFmpeg

You can download the ffmpeg sources from the repository via https://git.ffmpeg.org/ffmpeg.git After downloading, run the configure script with the following options:

$ ./configure --enable-swscaler --enable-shared --enable-gpl
...
$ make
# make install

MjpegTools

You can download the MjpegTools from http://mjpeg.sourceforge.net

Compilation of both packages is straightforward, in general the following will do it:

$ ./configure && make
# make install

3.2 Installing from archive

From archive, you install a published version. Installing the last published version insure you to get last stable veejay. Ideal for partying !

Decompress and untar the file by typing:

$ tar -jxvf veejay-1.5.x.tar.bz2

Change to the directory containing veejay's source's and configure the build:

$ cd veejay-1.5.x/veejay-current/veejay-server

$ ./configure

On completion it will summarize the results of the ./configure script.
You can run ./configure --help to view all configure options and tweak your installation.

Now, you can start building veejay (using all cores)

$ make -j$(nproc)

Followed by

# make install && ldconfig

For full installation instruction please refer to this documentation

3.3 Installing from repository

From sources, you will install last veejay version, could be in no stable situation, ideal for coding !

The last Veejay's source code could be found here github / veejay.
Download the last source code by typing :

$ git clone https://github.com/c0ntrol/veejay.git

Enter the directory containing veejay's source's :

$ cd veejay/veejay-current/veejay-server

You need to prepare and configure the build:

$ ./autogen.sh
$ ./configure

On completion it will summarize the results of the ./configure script.
You can run ./configure --help to view all configure options and tweak your installation.

Now, you can start building veejay (using all cores)

$ make -j$(nproc)

Followed by

# make install && ldconfig

For full installation instruction please refer to this documentation

3.4 Setting up multicast

Multicast is a technology that reduces network traffic by simultaneously delivering a single stream of information to any interested recipient.

To enable multicast in Veejay, you must have enabled IP multicast in your kernel configuration.

Finally you need to add a multicast route :

for 1 ethernet device:
# route add -net 224.0.0.0 netmask 255.255.255.0 dev eth0

for > 1 
# route add -net 224.0.0.0 netmask 255.255.255.0 gw 192.168.100.1 dev eth1

Next, Veejay can be started with the commandline flags -M/--multicast-osc and/or -V/--multicast-vims

4. Using Veejay

Veejay uses by default a SDL window to play the video. All the keybinding in veejay depend on SDL; if you move your mouse over to the SDL windows to focus it, you can press the keys explained in 4.3 The keyboard interface.
To use veejay in commandline style interface mode, see sayVIMS.

You don't even need a video file to use with veejay; you can run it in dummy mode by using the -d commandline parameter:

$ veejay -d

To use the graphical client with veejay (-a for auto-connection):

$ reloaded -a

4.1 Terminology and limitations

Note that veejay runs in only 1 resolution at a time (depending on the video dimensions of the first loaded movie). All movies loaded must have identical properties when streaming video from veejay to another veejay.

Veejay has a number of playback modes, each playback mode is unique and defines more or less a different functionality.

**Playback modes in veejay**
Mode	Description	Navigation	Looping	Speed	Effect Chain
Plain	Default mode, playback of video	Yes	No	Yes	No
Sample	Sample mode, playback of video samples.	Yes	Yes	Yes	Yes
Tag	Tag mode, playback of video streams	No	No	No	Yes

4.2 VIMS

Use the command

    $ veejay -u -n |less

to see documentation generated by veejay on VIMS, using Effects and OSC.

If there is an error in the documentation, you have found a bug in veejay
and should report it :)

1.1 Message Format
==================

A message is described as:

    <Action Identifer> : <Argument List> ;

Example:

    080:;
    099:0 0;

<Action Identifier>
The action identifier is a 3 digit number describing a Network Event  
The colon is used to indicate the start of the Argument List and must be given. 

<Argument List>
The Argument List is described by a printf() style formatted template 
which describes the number and type of arguments to be used. 

The semicolon must be given to indicate the end of this message

1.2 Bundled Messages
====================

A message bundle is a special message that contains an ordered list of at least 1 or more messages. Each message is executed from left to right (first in, first out) while parsing the bundle.   

You can dynamically assign keybindings to trigger a bundle in reloaded ( View -> Bundles )

There is an example Action File that a number of bundles with keybindings:

    $ veejay -v /path/to/video.avi -F test/livecinema/action-file.xml

The bundles can be triggered by the keys SHIFT + [ q,w,e,r,t,y,u,i,o,p,a,s,d,f,g,h,j,k,l,z,x,c,v,b,n,m ] 

Structure of bundled message
============================

Example:

    5032|BUN:002{361:0 3 56 230 93 0;361:0 4 1 7;}|
    5033|BUN:003{361:0 3 56 230 93 0;361:0 4 1 7;361:0 5 1 7;}|
    5034|BUN:003{361:0 3 56 230 93 0;361:0 4 1 7;361:0 5 1 8;}|


A message bundle is described as:

  BUN: <Number of Messages> {
      <Action Idenfifier> : <Argument List> ;
      <Action Identifier> : <Argument List> ;
      ...
      }
    ;


The token 'BUN:' indicates the start of a messaage bundle, the first 3 digit numeric
value represents the total number of messages in the bundle. The '{' symbol indicates
the start of a message block and is ended with '};' or just '}'.

1.3 Format of an Action File/Attaching Keys to Bundles
======================================================

    <501 - 599> | <message bundle> |

The contents of some action file can be :

    516|BUN:001{355:;}|

The message bundle BUN sends '355' for clear effect chain.
This message bundle is attached to action identifier 516.

A key is attached to this function trough using the GUI (GVeejay)
or by using:

DYNAMIC KEYMAPPING:
==================

    "083:516 <sdl symbol> <modifier> <optional arguments>;"

The message bundle can be attached to a key , for example 'SHIFT + A' by sending

    083:516 97 3;

Which attaches bundle '516' to SDL key '97' using a modifier '3', which is SHIFT.

Modifiers: 0 = none, 1 = alt , 2 = ctrl,  3 = shift
Keys     : see SDLkeysym.h somewhere in include/SDL/

If the number 0 is used for an event number, a given key combination can be
unset (wiped) :

    083:0 97 3;

Alternativly, you can bind keys to any action identifier. The complete
list can be viewd by typing veejay -u |less or with Gveejay.

    083:20 97 0 4;

The example above sets key 'a' to 'change video speed to 4'

General  description of VIMS messages
=====================================


Some reserved numbers:

    clip id     0   :   select currently playing clip
    clip id     -1  :   select highest clip number
    chain entry -1  :   select current chain entry
    stream id   0   :   select currently playing stream
    stream id   -1  :   select highest stream number
    key modifier    :   0 = normal, 1= alt , 2 = ctrl, 3 = shift
    frame       -1  :   use highest possible frame number (usually num video frames)
    playback mode   :   0 = clip, 1 = stream, 2 = plain
    data format     :   yv16 (yuv 4:2:2 raw) , mpeg4, divx, msmpeg4v3,
                        div3, dvvideo, dvsd, mjpeg, i420 and yv12 (yuv 4:2:0 raw)
    loop type       :   0 = no looping, 1 = normal loop, 2 = pingpong (bounce) loop

sayVIMS

sayVIMS is a commandline utility distributed with the veejay package, it allows you to send to a veejay server short commands in interactive mode, single VIMS message or files containing VIMS messages.

In the following examples, lets say a veejay instance is running on host localhost using port 3490 (its default values).

Interactive Mode

$ sayVIMS -i -h localhost -p 3490

In interactive mode, after a connection is establish with a veejay server, a prompt wait you to enter VIMS commands. Press ENTER to send it.
The connection remain open until you exit by typing quit.

Typing '?' followed by pressing ENTER gives the list of command below:

vi [file]           Open video4linux device
fi [file]           Open Y4M stream for input
fo [file]           Open Y4M stream for output
av [file]           Open (almost any) video file using FFmpeg
mc [address] [port] Open a multicast UDP video stream
pr [hostname][port] Open a unicast TCP video stream
cl [file]           Load cliplist from file
cn [n1] [n2]        New clip from frames n1 to n2
cd [n]              Delete clip n1
sd [n]              Delete Stream n1
cs [file]           Save cliplist to file
es [file]           Save editlist to file
ec [n1] [n2]        Cut frames n1 - n2 to buffer
ed [n1] [n2]        Del franes n1 - n2
ep [n]              Paste from buffer at frame n1
ex [n1] [n2]        Copy frames n1 - n2 to buffer
er [n1] [n2]        Crop frames n1 - n2
al [file]           Action file Load
as [file]           Action file save
de                  Toggle debug level (default off)
be                  Toggle bezerk mode (default on)

Single VIMS message

Also, you can send single VIMS format message.

For example, add the Pixelate effect on the Effect Chain of the current playing stream or clip :

sayVIMS -h localhost -p 3490 -m "361:0 0 100 3;"

Using files

Last but not least, sayVIMS can parse files containing VIMS messages.

See the veejay-server/test/examples directory of the package for a list of perl scripts that output a VIMS script.

sayVIMS -f advocate.vims -h localhost -p 3490

Others examples

Alternativly, you can start a secundary veejay and stream from peer to peer in uncompressed video :

$ veejay -d -p 5000
$ sayVIMS -h localhost -p 5000 -m "245:localhost 3490;"

(press 'F7' in veejay to display the stream, prob. stream 7)

Or for multicast:

$ veejay -V 224.0.0.50 -p 5000 -n -L movie1.avi
$ veejay -d
$ sayVIMS -h localhost -p 3490 -m "246:224.0.0.50 5000;"
$ veejay -d -p 4000
$ sayVIMS -h localhost -p 4000 -m "246:224.0.0.50 5000;"

4.3 The keyboard interface

Here is a quick overview for the most used default keys, if applied in order you will end up with a newly created video sample looping in some way (depending on how many times you press the asterix key)

Some keyboard bindings

Description

SDL key

In plain english

Set the starting position of a new sample

SDLK_LEFTBRACKET

Left bracket

Set ending position and create a new sample

SDLK_RIGHTBRACKET

Right bracket

Select and play sample 1

SDLK_F1

Set playback speed to 3

SDLK_d

Change looptype

SDLK_KP_MULTIPLY

asterix on numeric keypad

Play backward

SDLK_KP_4

Cursor left on numeric keypad

Play forward

SDLK_KP_6

Cursor right on numeric keypad

Skip 1 second

SDLK_KP_8

Cursor up on numeric keypad

Switch playmode to Plain

SDLK_KP_DIVIDE

Divide on numeric keypad

Print information about sample

SDLK_HOME

Home

The function keys F1...F12 can be used to select sample 1 ... 12, use the keys 1...9 to select a sample range 1-12 ... 108-120 and press one of the F-keys to play that sample.

Use ESC to switch between samples and streams. Press ESC again to switch back to the sample playmode
You can create new input streams by using the console interface or by using GVeejay.
All new input streams (and samples) are auto numbered.

4.4 Recording video

You can record video to a new clip , by using the stream- or clip recorder functions.
For example, to record a new clip from a playing clip in MJPG format:

302:mjpg;

Record 100 frames and start playing new clip when ready:

130:100 1;

Record the whole clip and dont start playing new clip when ready:

130:0 0;

If your Effect Chain is very CPU demanding , consider disabling audio and using the commandline parameter -c 0 to disable sync correction.

It is possible to start veejay headless and have it write all video data to a (special) file for further processing.

Refer to chapter 5.3 for some examples.

4.5 Streaming video

You can create an input stream to read video coming from a video4linux device, from a pipe or from a network socket (both unicast and multicast).

4.5.1 video4linux

To open a video4linux device use gveejay or type the command:

$ sayVIMS 240:0 1;

The selector '240' tells veejay to open a video4linux device, the first argument '0' indicates the device number (i.e. /dev/video0) and the last argument '1' indicates the video in port of your capture card (in this case composite).
Veejay will create a new stream see chapter 4.4 for activating the stream.

4.5.2 pipe

Veejay supports reading video data from a pipe (FIFO) by means of an input stream.
The only supported transport format is yuv4mpeg (yuv 4:2:0). When playing YUV 4:2:2 the video stream will be sampled to YUV 4:2:0 and vice versa
You can create the input stream by typing the command

$ sayVIMS 243:/tmp/stream.yuv;

4.5.3 network

To get frames from another running veejay, use the command:

$ sayVIMS 245: ;

For example, sayVIMS 245:localhost 5000;

If you want to send the same video to multiple running veejays accross the network, you can save bandwith by starting the veejay you wish to use as server with the -V option.
You can use the -V option to start an optional multicast frame sender.
First, you need a multicast route in your routing table. See chapter 3.3 for a short introduction or consult a howto that disuccess setting up multicast for your operating system.

$ veejay -V 224.0.0.50 -p 5000

Start another veejay, and use this command:

$ sayVIMS "246:5000 224.0.0.50;"

To create a new input stream. Start more veejays and use sayVIMS with the -p option to give it a port offset number.

4.6 Other utilities

Currently there are 4 extra utilities yuv2rawdv , rawdv2yuv , sayVIMS and any2yuv included in the veejay package for encoding a Y'C_BC_R 4:2:0 stream to raw DV and vice versa.

yuv2rawdv takes input from STDIN and outputs to STDOUT, we illustrate this with a few examples.

When loading yuv2raw dv without parameters you will see:

This program reads a YUV4MPEG stream and puts RAW DV to stdout
Usage:  yuv2rawdv [params]
where possible params are:
    -v num    Verbosity [0..2] (default 1)
    -l num    Clamp Luma (default 0)
    -c num    Clamp Chroma (default 0)

If you use the clamp parameters, it will clip (not scale!) a pixel into a valid range, the resulting video could be for example a bit darker if the input stream has values for Luminance exceeding the maximum of 235.
See the table below for all valid ranges.

Y'C_BC_R

Channel

Range (Clamp)

Byte range (no clamping)

Y (Luminance)

16 - 235

0 - 255

Cb (Chroma Blue)

16 - 240

0 - 255

Cr (Chroma Red)

16 - 240

0 - 255

To convert a yuv4mpeg file to rawdv (the yuv4mpeg file needs to be compatible with the digital video format properties)

$ cat yuv4mpeg-file.yuv | yuv2rawdv | playdv

To convert a yuv4mpeg file to rawdv with luminance and chroma information clipped to a valid range:

$ cat yuv4mpeg-file.yuv | yuv2rawdv -l 1 -c 1 | playdv

rawdv2yuv takes input from STDIN and outputs to STDOUT, we illustrate this with a few examples.

This program reads a raw DV stream from stdin and puts YV12/I420 to stdout
Usage:  rawdv2yuv [params]
where possible params are:
   -v num     Verbosity [0..2] (default 1)
   -x         Swap Cb/Cr channels to produce IV12 (default is I420)
   -n num     Norm to use: 0 = NTSC, 1 = PAL (default 1)
   -q         DV quality to fastest (Monochrome)
   -h         Output Half frame size
   -c num     clip off  rows of frame (for use with -h)
              must be a multiple of 8

If you want to convert a full PAL/NTSC dv frame to half PAL YCbCr (I420 or YV12) you can give the command:

$ cat raw.dv | rawdv2yuv -h | yuvplay

You can use the -c parameter to clip the width of the video frame.

$ cat raw.dv | rawdv2yuv -h -c 8 | yuvplay

The resizer in rawdv2yuv uses a best neighbour interpolation algorithm for downsizing.

any2yuv takes input from STDIN and puts YV12/I420 to stdout:

This program reads anything from stdin and puts YV12/I420 to stdout
Usage:  any2yuv [params]
where possible params are:
   -v num     Verbosity [0..2] (default 1)
   -x         Swap Cb/Cr channels to produce IV12 (default is I420)
   -n num     Norm to use: 0 = NTSC, 1 = PAL (default 1)

sayVIMS can be used to send commands or files to batch-process to veejay

Usage: sayVIMS [options] [messages]
where options are:
 -p             Veejay port (3490)
 -h             Veejay host (localhost)
 -g             Veejay multicast address (224.0.0.50)
 -f   Send contents of this file to veejay
 -c             Colored output (geek feature)

Messages to send to veejay must be wrapped in quotes
You can send multiple messages by seperating them with a whitespace

5 Popular Packages

Usefull software (in no apparant order):

The MJPEG Tools
Transcode
PureData (PD)
PDP for PD

Please refer to Other Resources to find the project's website

5.1 The MJPEG Tools

The Mjpeg tools are a set of tools that can do recording of videos and playback, simple cut-and-paste editing and the MPEG compression of audio and video under Linux. You can use the EditLists from this package in veejay and vice versa
Here are a few examples for processing video data:

Start veejay headless:

$ mkfifo /tmp/special_file $ veejay /video/video.avi -O3 -o /tmp/special_file

Encoding it to DV avi type 2 (if video dimensions match either full PAL or NTSC)

$ cat /tmp/special_file | yuv2rawdv -v 2 > rawdv

Encoding it to MJPEG file 'video-mjpeg.avi'

$ cat /tmp/special_file | yuv2lav -v2 -f 0 -I 0 -q 90 -o video-mjpeg.avi

Encoding veejay output to MJPEG file:

$ veejay movie1.avi -o stdout -O3 | yuv2lav -f 0 -I 0 -q 90 -o movie1-mjpeg.avi

5.2 Transcode

Transcode is a Linux video Stream Processing Tool, it can convert between different types of video formats

Encode a file to mjpeg with no audio and rescale the output video to 352x288:

$ transcode -i input_file.avi -o new_mjpeg_file.avi -y mjpeg,null -Z352x288

6. Other Resources

Here you will find the websites of the packages veejay requires as well as packages you can use in combination with veejay.

6.1 Web Sites

Packages you need

Usefull software

6.2 Mailing Lists

There is a mailing list for veejay which is hosted by Sourceforge. The address is veejay-users@lists.sourceforge.net

6.3 Veejay developer's lounge

Veejay's developer lounge provides a ticket system for you , the user, to report any problem or feature requests. The ticket system allows us to keep track of problems.
Also, the developer lounge hosts a subversion code repository where you can find the 'on the bleeding edge' source codes of veejay.
Many thanks to jaromil (author of FreeJ/Muse) and the Dyne Foundation for providing these tools
.

7. Credits

End of the Veejay HOWTO. (You can stop reading here.)

8. GNU Free Documentation License

GNU Free Documentation License

Version 1.1, March 2000

Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.

PREAMBLE

The purpose of this License is to make a manual, textbook, or other written document "free" in the sense of freedom: to assure everyone the effective freedom to copy and redistribute it, with or without modifying it, either commercially or noncommercially. Secondarily, this License preserves for the author and publisher a way to get credit for their work, while not being considered responsible for modifications made by others.

This License is a kind of "copyleft", which means that derivative works of the document must themselves be free in the same sense. It complements the GNU General Public License, which is a copyleft license designed for free software.

We have designed this License in order to use it for manuals for free software, because free software needs free documentation: a free program should come with manuals providing the same freedoms that the software does. But this License is not limited to software manuals; it can be used for any textual work, regardless of subject matter or whether it is published as a printed book. We recommend this License principally for works whose purpose is instruction or reference.

APPLICABILITY AND DEFINITIONS

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ADDENDUM: How to use this License for your documents

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    Permission is granted to copy, distribute and/or modify this document
    under the terms of the GNU Free Documentation License, Version 1.1
    or any later version published by the Free Software Foundation;
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Veejay HOWTO

1. Introduction

1.1 Disclaimer

1.2 Acknowledgements

1.3 Audience and Intent

1.4 Revision History

1.5 New versions of this document

1.6 Feedback

1.7 Distribution Policy

2. About Veejay

2.1 Features

General

Media

FX processing

Editing

Output

Interaction

Viewing

Plugins and more...

2.2 Hardware configuration

3. Installation

3.1 Dependencies

3.1.0 From source

FFmpeg

MjpegTools

3.2 Installing from archive

3.3 Installing from repository

3.4 Setting up multicast

4. Using Veejay

4.1 Terminology and limitations

4.2 VIMS

sayVIMS

4.3 The keyboard interface

Some keyboard bindings

4.4 Recording video

4.5 Streaming video

4.5.1 video4linux

4.5.2 pipe

4.5.3 network

4.6 Other utilities

Y'CBCR

5 Popular Packages

5.1 The MJPEG Tools

5.2 Transcode

6. Other Resources

6.1 Web Sites

Packages you need

Usefull software

6.2 Mailing Lists

6.3 Veejay developer's lounge

7. Credits

8. GNU Free Documentation License

51 KiB

Raw Blame History

Y'C_BC_R