jit.avc
Description
Communicates with FireWire VTR devices, such as digital cameras and DV decks, using the 1394 AV/C protocol. Use it to control the transport of these devices with messages.
Examples

Attributes
Common Box Attributes
Messages
close
Closes the AV/C connection. The connection is closed automatically if the object is deleted, or the patch containing the object is closed.
custom
Arguments
sequence
[list]
Sends a custom string of data to the DV device. Messages are usually sent as a sequence of hexadecimal numbers. Accepted messages are documented by the
1394 Trade Association
. The relevant specification is the "AV/C Tape Recorder/Player Subunit".
fastwind
Fast rewinds the transport.
ff
Fast forwards the transport.
getdevice
Sends the name of the currently active device out the right outlet of the object in the form
active-device . gettime
Sends the name of the currently active device out the right outlet of the object in the form
DVdevicemedia-time . gettransport
The jit.avc object.
message will report the precise state of the transport of the VTR device to which it is connected out the right outlet of the open
Opens an AV/C connection to a compatible device if one can be found.
pause
Pauses the transport playback.
play
Arguments
command
[symbol]
Sets playback at normal speed. The following optional arguments are permitted:
: Pause in playback.
: Playback at normal speed in reverse.
: Pause in reverse playback.
: Playback the next sequential frame or field.
: Playback the previous sequential frame or field.
: Playback at the slowest forward special effect speed (sf = slowest, sf6 = slow, sf1 = fastest)
: Playback at slow forward special effect speed
: Playback at slow forward special effect speed
: Playback at slow forward special effect speed
: Playback at slow forward special effect speed
: Playback at slow forward special effect speed
: Playback at fastest slow forward special effect speed
: Playback at the slowest reverse special effect speed (sr = slowest, sr6 = slow, sr1 = fastest)
: Playback at slow reverse special effect speed
: Playback at slow reverse special effect speed
: Playback at slow reverse special effect speed
: Playback at slow reverse special effect speed
: Playback at slow reverse special effect speed
: Playback at fastest slow reverse special effect speed
: Playback at the fastest fast forward special effect speed (ff = fastest, ff6 = fast, ff1 = slowest)
: Playback at fast forward special effect speed
: Playback at fast forward special effect speed
: Playback at fast forward special effect speed
: Playback at fast forward special effect speed
: Playback at fast forward special effect speed
: Playback at slowest fast forward special effect speed
: Playback at the fastest fast reverse special effect speed. (fr = fastest, fr6 = fast, fr1 = slowest)
: Playback at fast reverse special effect speed
: Playback at fast reverse special effect speed
: Playback at fast reverse special effect speed
: Playback at fast reverse special effect speed
: Playback at fast reverse special effect speed
: Playback at slowest fast reverse special effect speed
: Pause in playback.
: Playback at normal speed in reverse.
: Pause in reverse playback.
: Playback the next sequential frame or field.
: Playback the previous sequential frame or field.
: Playback at the slowest forward special effect speed (sf = slowest, sf6 = slow, sf1 = fastest)
: Playback at slow forward special effect speed
: Playback at slow forward special effect speed
: Playback at slow forward special effect speed
: Playback at slow forward special effect speed
: Playback at slow forward special effect speed
: Playback at fastest slow forward special effect speed
: Playback at the slowest reverse special effect speed (sr = slowest, sr6 = slow, sr1 = fastest)
: Playback at slow reverse special effect speed
: Playback at slow reverse special effect speed
: Playback at slow reverse special effect speed
: Playback at slow reverse special effect speed
: Playback at slow reverse special effect speed
: Playback at fastest slow reverse special effect speed
: Playback at the fastest fast forward special effect speed (ff = fastest, ff6 = fast, ff1 = slowest)
: Playback at fast forward special effect speed
: Playback at fast forward special effect speed
: Playback at fast forward special effect speed
: Playback at fast forward special effect speed
: Playback at fast forward special effect speed
: Playback at slowest fast forward special effect speed
: Playback at the fastest fast reverse special effect speed. (fr = fastest, fr6 = fast, fr1 = slowest)
: Playback at fast reverse special effect speed
: Playback at fast reverse special effect speed
: Playback at fast reverse special effect speed
: Playback at fast reverse special effect speed
: Playback at fast reverse special effect speed
: Playback at slowest fast reverse special effect speed
record
Arguments
command
[symbol]
Sets the DV device to record. The following optional arguments are permitted:
: Pause while recording all signal(s)
: Replace the video signal with a new signal, but leave any other signals on the medium intact
: Replace the audio signal with a new signal, but leave any other signals on the medium intact
: Replace the audio and video signals with new signals, but leave any other signals on the medium intact
: Replace the subcode signal with a new signal, but leave any other signals on the medium intact
: Pause recording signals, and set the recording mode
: Pause recording signals, and set the recording mode
: Pause recording signals, and establish the recording mode
: Pause recording signals, and set the recording mode
: Pause while recording all signal(s)
: Replace the video signal with a new signal, but leave any other signals on the medium intact
: Replace the audio signal with a new signal, but leave any other signals on the medium intact
: Replace the audio and video signals with new signals, but leave any other signals on the medium intact
: Replace the subcode signal with a new signal, but leave any other signals on the medium intact
: Pause recording signals, and set the recording mode
: Pause recording signals, and set the recording mode
: Pause recording signals, and establish the recording mode
: Pause recording signals, and set the recording mode
recpause
Pauses while recording all signal(s).
rewind
Rewinds the transport.
stop
Halts the transport.
time
Causes the attached DV device to seek for the specified time on any loaded media. Time is specified by four integer arguments that specify hours, minutes, seconds and frames. Many devices do not support this function.
See Also
Name | Description |
---|---|
Working with Video in Jitter | Working with Video in Jitter |
jit.qt.grab | |
jit.qt.videoout | |
Tutorial 23: Controlling Your FireWire Camera | Tutorial 23: Controlling Your FireWire Camera |