home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Club Amiga de Montreal - CAM
/
CAM_CD_1.iso
/
files
/
011.lha
/
bcs_software
/
TCWindow.doc
< prev
next >
Wrap
Text File
|
1986-11-10
|
4KB
|
86 lines
TCWindow - Time Code Window Program
-----------------------------------
Preliminary Demo Version 0.1 12/3/86
Mike Berro
BCS Software
13432 Lochrin lane
Sylmar, CA 91342
(818) 362-6031
CIS: 73267,3361
Introduction
------------
TCWindow allows you to create a window dub, or video with visible time
code. The time code can be reset or preset, frozen, and moved around.
Both Drop and Non-drop modes allowed. Settings can be saved onto disk.
This is a preliminary demo. Future versions (if there is interest)
will include reading time code through the serial port or reading it
directly through mouse port #2 (already done).
Future versions will also have a nicer font, variable font size and
color, and who knows what all else. I would appreciate any comments.
Menu Commands
-------------
There are three menus: Project, Options and Disk Access. The Project
commands may also be accessed by simply pressing the associated command
key; pressing the right-Amiga key is optional.
Project Menu
------------
> Freeze the Display [F]: This command freezes and unfreezes the display.
Pressing the space bar always unfreezes the
display. Other commands still function when
the display is frozen.
> Set the Time [S]: This command allows you to set the time to any value.
After selecting this command, the "set pointer" will
become visible. Point at the digit to change and press
the left mouse button. Press the right mouse button or
any key to exit this mode. The value you have set will
be stored in the "preset buffer" (see Preset below).
> Preset the Time [P]: This command sets the current time to the value
stored in the "preset buffer".
> Move the Time [M]: This command allows you to move the time code display
to another position on the screen. After selecting
this command, the "move pointer" will become visible.
Point to the desired location of the upper-left
corner of the display and press the left mouse button.
Press the right mouse button or any key to exit
this mode.
> Hide the Pointer [H]: Does just that. Press the left mouse button to
make it visible.
Options Menu
------------
> Drop or Non-drop Frame:
Non-drop frame time code is continuous. Drop frame code skips two
frames every minute, except every ten minutes. Non-drop frame accurately
counts the number of frames, Drop frame code more accurately measures the
duration.
The reason is that video is not running exactly at 30 frames per
second, but at 29.97. Therefore, instead of 1800 frames per minute
you actually have about 1802 frames.
Which code you use depends upon what the code is for. If you are using
it to edit tape, use Non-drop frame code. Many inexpensive editing
systems will choke on drop frame code. If you are using it to simply
measure the duration of events, use drop frame code.
> Interlace or Non-Interlace:
Interlaced video produces better recordings, but is somewhat annoying
to watch. In this instance it does not give you better resolution. The
program does not reset the interlace mode upon startup or exit.
Disk Access Menu
----------------
The parameters stored are the current time, the "preset buffer", the
display position, the drop frame mode and the interlace mode. They are
stored in a file called TCW.data.
Miscellaneous
-------------
Pressing Z zeroes the time code.
Activating the menu will cause a "glitch" in the time code, causing it
to miss several frames. Use the keyboard to avoid this.
Running other programs at the same time could also cause inaccuracies,
unless you set the priority of this program very high.