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Initial checkin of veejay 1.4
git-svn-id: svn://code.dyne.org/veejay/trunk@1172 eb8d1916-c9e9-0310-b8de-cf0c9472ead5
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Niels Elburg
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veejay-current/veejay-server/README
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veejay-current/veejay-server/README
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version 1.3
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November 2008
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=========================================
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:: Veejay, a visual instrument for GNU ::
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http://veejayhq.net
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http://veejay.dyne.org
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Veejay - a 'visual' instrument and realtime video sampler
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Veejay is a visual instrument and real-time video sampler.
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It allows you to "play" the video like you would play a piano.
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While playing, you can record the resulting video directly to disk (video sampling).
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FEATURE OVERVIEW
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General
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-------
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# Free Software (GNU GPL) (1)
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# Servent architecture (2)
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# Soft realtime (3)
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# Frame accurate (4)
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# Loop based editing (5)
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# Native YUV processing
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# Crash recovery
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Media
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-----
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# Codecs: MJPEG,MPNG, DV, YUV (raw)
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# Containers: AVI , Quicktime, rawDV
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# Devices: USB webcams, DV1394, TV capture cards, etc.
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# Support for unlimited capture devices
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# Support for Image files (PNG ,JPEG,TIFF,etc)
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Editing
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-------
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# 132 built-in FX , many unique and original FX filters
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# FX chain (20 slots)
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# All FX parameters can be animated.
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# Mix up to two layers per FX slot
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# Non destructive edit decision lists (cut/copy/paste/crop video)
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# Simple text editor
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# Sample editor
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# Sequence editor
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# Live disk recorder (sampling)
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# Full deck save/restore
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# Live clip loading
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# Live sample sequencing
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Trickplay
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---------
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# VIMS event recording/playback (6)
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# Various looping modes including bounce looping
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# Playback speed and direction
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# Video scratching
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# Change in-and out points of a sample (marker)
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# Slow motion audio / video (7)
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# Fast motion audio / video
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# Dynamic framerate
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# Random frame play
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# Random sample play
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# Access up to 4096 video samples instantly
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Output
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------
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# Audio trough Jack (low latency audio server) (8)
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# SDL and OpenGL video
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# Headless
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# YUV4MPEG streaming
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# Network streaming (unicast and multicast)
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# Preview rendering
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Interaction
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-----------
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# Programmable keyboard interface
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# VIMS (tcp/ip)
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# OSC (udp)
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# PureData trough sendVIMS external
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Viewing
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-------
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# Full screen or windowed mode
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# Perspective and foward projection (9)
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Additional
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----------
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# Support for FreeFrame plugins
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# Support for Frei0r plugins
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(1) Free Software
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A matter of liberty, not price. You should think of “free” as in free speech.
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Free software is the matter of the users freedom to run, copy, distribute, study, change and improve the software.
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(2) A servent architecture is a peer-to-peer network mode with both functionalities of a
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server and a client. The setup is designed so that each veejay-node can send and receive video,
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allowing for the creation and maintenance of ad-hoc veejay-networks.
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Reloaded , veejay's graphical interface, is a thin client and can be run from another computer
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to track one or more veejay servers.
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(3) Soft realtime: A system is realtime if the correctness of the application not only depends on
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the logical correctness but also upon the time at which it was performed.
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Veejay tolerates such lateness and responds by dropping video frames.
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You can instruct veejay to ignore the time aspect of the video and render all frames, effectivly
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turning the server into a frame producer.
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(4) VIMS: Veejay Internal Message System. Control data is distributed via this message system,
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each message consists of an 'event selector' with a list of arguments. VIMS is the lowest
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level control interface available. The keyboard interface and OSC server are built on top of it.
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Also all veejay clients communicate usings VIMS.
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(5) Loop based editing: Loops are (short) sections of video (up to any length) that are repeated
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continuously. While playing, you can change the properties of the video sample, add filters to it
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and record it on the fly to a new sample (which can be used instantly).
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(6) Frame accurate: In veejay, every frame is a key-frame (a whole image).
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As a consequence, veejay has no support for video codecs that make use of difference frames.
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(7) In trickplay mode, veejay will always resample the audio analogous to varying the speed
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of an analogue tape recorder . Halve the speed results in the pitch going down an octave.
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Slow motion video is produced by linearly interpolating in-between frames and
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faster motion is accomplished by skipping video frames or, if playing without audio,
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by changing the framerate dynamically.
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(8) JACK: A low latency audio server that can connect a number of different applications to an audio device,
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allowing them to share audio between themselves.
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(9) Perspective Viewing: You can define a quadrilateral to which the rendered image will be mapped.
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This is usefull for setups where the image borders fall outside the projection screen area, or where
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the projector/camera has a (wide) angle to the projection.
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Last but not least, it can be used for on-body projection performances.
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Install
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=======
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See file 'INSTALL'
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See doc/Howto_Compile.html
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See doc/Howto_Compile_on_Ubuntu.html
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Documentation
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=============
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See the directory 'doc' in this package, it contains usefull documentation.
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Running
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=======
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Start 1 or more Veejay servers:
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$ veejay my-movie-A.avi
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$ veejay -p 4490 my-movie-B.avi
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CONTACT / FEEDBACK & HELP
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=========================
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http://veejayhq.net
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BUG REPORTS / BLEEDING EDGE SOURCE CODE
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=======================================
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Please use the ticket system !
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http://veejay.dyne.org
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http://veejayhq.net
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ENJOY! And let us know about your performances/installations with veejay!
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