Provided by: xjadeo_0.7.6-1build1_amd64 
NAME
xjadeo - display a video-clip in sync with an external time source
SYNOPSIS
xjadeo [-aAbcCDhIkKlLnNPqQRsStvV] [-d <midi-driver>] [-f <fps>] [-F <fps>] [-i <int>]
[-m <midi-port>] [-M <num>] [-o <frames|SMPTE>] [-O <osc-port>] [-W <rpc-id>]
[-x <dpy-mode>] <videofile>
xjadeo -R [options] [<videofile>]
xjadeo -Q [options] [<videofile>]
DESCRIPTION
Xjadeo is a software video player that displays a video-clip in sync with an external time
source (MTC, LTC, JACK-transport).
It has applications in soundtrack composition, video monitoring or any task that requires
synchronizing movie frames with audio events.
Xjadeo supports different video file formats, video output libraries and sync sources.
OPTIONS
-a, --ontop
Start Xjadeo 'always-on-top' of other windows (this option requires support from your
window manager).
-A, --avverbose
Enable verbose ffmpeg messages (format/codec debugging).
-b, --letterbox
Retain aspect ratio and draw a letterbox around the video-frame if necessary.
-c, --no-midiclk
Do not use MIDI quarter-frames for more exact sync.
-c, --midiclk
Use MIDI quarter-frame timing for more exact sync (this is enabled by default since
version 0.4.11).
-d <midi-driver>, --midi-driver <midi-driver>
Choose MIDI back-end to use. <midi-driver> can be either one of "JACK", "ALSA" or
"portmidi" - depending on the operating-System and compile-time configuration.
-D, --debug, --debug
Enable debug mode. Print development related information.
-f <n>, --fps <n>
Desired refresh-rate of the video display in frames per second. Non-integer values are
possible. Default: -1.
If this value is set to zero (or less), Xjadeo will use the FPS of the video-file as
its screen update frequency.
-F <n>, --filefps <n>
Override the (auto-detected) frame-rate of the video-file.
-h, --help
Prints usage help and exits.
-i <n>, --info <n>
Displays information using the OSD (on-screen display.)
0
Off.
1
Frame number.
2
SMPTE time code.
3
Both frame number and SMPTE.
The remote control interface allows more complete control over the OSD.
-I, --ignorefileoffset
This option is only useful for video files with a start-offset, such as split vob
files. Per default Xjadeo will honor offsets specified in the video-file header and
the file's PTS/DTS. -I allows you to override and subtract this offset and makes the
file start at SMPTE position 00:00:00:00 (although you can archive the same result,
this option is not related to -o.)
-k, --keyframes
Instructs the internal algorithm to seek only to key-frames. This option may improve
the performance for certain video encodings.
The default behavior (without -k and -K arguments) is to search any ANY frame.
-K, --continuous
Decode video frame by frame starting from previous key-frame. This particularly useful
for reading files where not every frame is a key-frame at the cost of increased CPU
usage. Note that this option adds some extra latency when seeking. Combine it with -f
-1: it makes sense to set Xjadeo's screen-update frequency to match the frame-rate of
the video file.
-l, --ltc
Use LTC as sync-source instead of JACK-transport.
-L, --nolash
Disable LASH support.
-m <midi-port>, --midi <midi-port>
Get sync from MTC (MIDI Time Code) instead of JACK or LTC.
If using JACK-MIDI driver, <midi-port> is the JACK-MIDI port to use as input - use an
empty value ("") to not auto-connect
If using ALSA MIDI back-end, <midi-port> is the ALSA sequencer-id to be used as the
MTC source. A value of -1 will leave Xjadeo unconnected.
If using portmidi, <port> is the port-number of the MIDI input device to use. The
value -1 will attempt auto-connect. Use -v -m -1 to list MIDI ports during
auto-detection.
-M <n>, --midifps <n>
Conversion between MTC SMPTE and frame number.
0 (default)
Use MTC clock frame rate.
1
Use video-file's frame-rate.
1
Resample video frame rate / MTC.
-n, --nodropframes
Prevent Xjadeo from detecting drop-frame-timecode (usually files with 29.97 fps)
-N, --dropframes
Force Xjadeo to use drop-frame-timecode (drop-frame-timecode is only valid for files
with 29.97 fps but your milage may vary)
-o <n>, --offset <n>
Offset the video playback a certain number of (video) frames relative to the sync
master time base. Admits negative values. <n> can be specified either as integer
frame-number or SMPTE text.
-P, --genpts
This option passed on to ffmpeg and has no effect on older versions of libavformat.
it can be used to generate "presentation time stamps" if they are missing in the file,
even if it requires parsing future frames.
-q, --quiet, --silent
Suppresses normal output messages.
-Q, --mq
Enable POSIX message queues. Set up a communication channel for use with xjremote(1).
See the the section called “Remote Control Interface” in the online documentation for
more information.
-R, --remote
Enable interactive (stdin/stdout) remote control mode. Options --quiet and --verbose
have no effect in remote mode.
-s, --fullscreen
Start Xjadeo in full-screen mode.
-S, --nosplash
Skip the on-screen-display startup sequence.
-t, --try-codec
Check if the video file is encoded in a format suitable for use with Xjadeo and exit.
If the video format is not supported the exit code is 1.
-v, --verbose
Print additional information.
-V, --version
Display version and compile-time configuration information and exit.
-W <rpc-id>, --ipc <rpc-id>
Set-up IPC message queues for xjremote. <rpc-id> specifies a file-path used to
identify the message-queue.
-x <dpy-mode>, --vo <dpy-mode>, --videomode <dpy-mode>
Selects the video output driver. Defaults to 0 (auto-detect). A value of -1 lists the
available modes and exits.
SYNC SOURCES
xjadeo currently supports the following synchronization sources:
• JACK-transport.
• LTC (Linear/Longitudinal Time Code) - via JACK audio.
• MTC (MIDI Time Code) via JACK-MIDI.
• MTC (MIDI Time Code) via ALSA sequencer.
• MTC (MIDI Time Code) via portmidi.
• remote-ctrl manual seeks (not really a sync source).
VIDEO FORMATS
Xjadeo uses ffmpeg to decode video files, so a wide range of formats and codecs are
supported. Note, however, that not all the formats support seeking. To transcode a
video-file into a suitable format we recommend:
mencoder -idx -ovc lavc -lavcopts keyint=1 -nosound input_file.xxx -o output_file.avi
This creates from your input-file.xxx an AVI mpeg4 encoded video file with no sound, an
index (-idx) and no compression between frames (every frame is a keyframe). The file thus
can become really BIG, so watch your disk space!
You may want also to shrink the size of the file's video frames by scaling down its
geometry. This uses fewer system resources while decoding and displaying it and leaves
more space in the screen for your audio software.
-vf scale=width:height
Important
Also note Xjadeo's -K option which allows one to seek to frames other than key-frames
and enables Xjadeo to play back any file without transcoding it. It comes at the
expense of increased CPU usage and possibly increased seek latency. The latter depends
on the key-frame interval and video-codec.
The same can be achieved by adding seek=continuously to ~/.xjadeorc.
USER INPUT
xjadeo window accepts the following input:
• Pressing mouse button 1 will resize the window to the original movie size.
• Mouse button 2 and 3 resize the window to match the movie aspect ratio.
• Scroll Wheel (buttons 4,5) stepwise decreases/increases the window size maintaining
the original aspect ratio.
• Xjadeo ≥ v0.3.8 supports keyboard events. Pressing Esc and q will end the program. f
toggles full-screen, a togglesalways-on-top. Press m to hide mouse cursor. v, s, o, C
and b control on-screen-display and l toggles the letter-box mode. The time-offset can
be modified with +, -, {, } and window-size with <, >, ,, .. SPACE and BACKSPACE can
be used to control JACK-transport. See the section called “Monitor Window - Key
bindings” in the online documentation for a complete list.
REMOTE MODE
When started in remote mode (option -R or --remote) Xjadeo will interactively accept
commands and issue responses through its standard input/output mechanism.
Use the remote command help to get a quick overview of all available commands. Please
refer to the online documentation for a complete description of the remote commands.
xjadeo -Q enables remote control by message-queues; use xjremote to connect.
FILES
Xjadeo reads the following resource configuration files in this order:
1. /@SYSCONFDIR@/xjadeorc (usually /etc/xjadeorc or /usr/local/etc/xjadeorc, which
depends on your distribution and on the configuration when building xjadeo)
2. $HOME/.xjadeorc
3. ./xjadeorc
Each line in the configuration file must be in in the format:
KEY=VALUE
If the first character on a line is either # or ; the line is ignored. KEYS are not case
sensitive. Some VALUES are case sensitive (e.g. filenames) and are parsed identical to the
corresponding command-line arguments (e.g. -x SDL is equivalent to the config-file option
videomode=SDL). Boolean values are specified as yes or no (e.g. quiet=yes).
currently supported RC-KEYS: fps, fontfile, lash, letterbox, midiclk, mididriver, midiid,
midismpte, mq, nosplash, quiet, seek, verbose and videomode. Which are documented in the
example xjadeorc[1]
ENVIRONMENT
JACK_DEFAULT_SERVER
Set the jack-server-name to connect to (used by JACK-transport, JACK-MIDI and LTC)
SEE ALSO
qjadeo(1)
xjremote(1)
xjinfo(1)
online-manual[2]
AUTHORS
Robin Gareus <robin@gareus.org>
linuxaudio.org
Luis Garrido <luisgarrido@users.sourceforge.net>
luisgarrido.users.sourceforge.net
COPYRIGHT
Copyright © 2005, 2006, 2007, 2009, 2010, 2011 Robin Gareus, Luis Garrido
NOTES
1. xjadeorc
http://xjadeo.git.sourceforge.net/git/gitweb.cgi?p=xjadeo/xjadeo;a=blob_plain;f=doc/xjadeorc
2. online-manual
http://xjadeo.sourceforge.net/