dmedia_tools Release Notes
1 Introduction
2 Installation Information
3 Sound Tools
4 Movie Tools
5 Capture Tool
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1. Introduction
The Digital Media Tools (dmedia_tools) are a set of end-user
tools that give you access to the digital media capabilities
of your workstation. The tools fall into two categories:
sound tools and movie tools.
The sound tools in Digital Media Tools include:
Sound Filer/Sound File Utilities
Sound Editor
CD Manager
DAT Manager
Prosonus Sound Library
The movie tools in Digital Media Tools include:
Movie Player
Movie Maker
Capture Tool
Note: Packaged with these release notes is a separate sheet
that contains the Software License Agreement. This
software is provided to you solely under the terms
and conditions of the Software License Agreement.
Please take a few moments to review the Agreement.
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This document contains the following chapters:
1. Introduction
2. Installation Information
3. Sound Tools
4. Movie Tools
5. Capture Tool
1.1 Release_Identification_Information
Following is the release identification information for the
Digital Media Tools:
Software Product dmedia_tools
Version 5.2
System Software Requirements IRIX 5.2
1.2 Hardware_Requirements
Sound tools such as Sound Editor and Sound Filer which
require audio I/O hardware for recording or playback will
run on IRIS Indigo2, Indy, Indigo, 4D/35, and 4D/30 (with
audio card) workstations. These tools include Sound Editor
and Sound Filer. Some of the sound tools which perform audio
file conversion such as aifcresample and aifccompress
require no audio I/O hardware and will run on any IRIS
system.
CD Manager requires IRIS audio I/O hardware and a SCSI CD-
ROM option drive. DAT Manager requires IRIS audio I/O
hardware and a SCSI DAT option drive.
The movie tools will run on any Silicon Graphicsr platform.
On systems without audio support, movies are played back
silently. Capture Tool will record audio input on any IRIS
workstation which runs the other audio tools. Capture Tool
will record video input on Indy workstations or Indigo2
workstations with a video option board.
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1.3 On-Line_Release_Notes
After you install the on-line documentation for a product
(the relnotes subsystem), you can view the release notes on
your screen.
If you have a graphics system, select ``Release Notes'' from
the Tools submenu of the Toolchest. This displays the
grelnotes(1) graphical browser for the on-line release
notes.
Refer to the grelnotes(1) man page for information on
options to this command.
If you do not have a graphics system, you can use the
relnotes command. Refer to the relnotes(1) man page for
accessing the on-line release notes.
1.4 Product_Support
Silicon Graphics, Inc., provides a comprehensive product
support maintenance program for its products.
If you are in North America and would like support for your
Silicon Graphics-supported products, contact the Technical
Assistance Center at
1-800-800-4SGI.
If you are outside North America, contact the Silicon
Graphics subsidiary or authorized distributor in your
country.
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2. Installation_Information
This chapter lists product-specific information supplemental
to the IRIS Software Installation Guide. Use it with the
Installation Guide to install this product.
2.1 Digital_Media_Tools_(dmedia_tools)_Subsystems
The Digital Media Tools can be found in the dmedia_tools
software images.
The following subsystems are included in dmedia_tools:
dmedia_tools.sw.soundtools Tools for sound recording,
playback, and conversion.
Includes Sound Editor, Sound
Filer, and several command-line
utility programs: aiff2aifc,
aifc2aiff, aifccompress,
aifcdecompress, aifcinfo,
aifcresample, and others.
dmedia_tools.man.soundtools Manual pages for the sound
tools.
dmedia_tools.sw.cddat CD Manager (audio CD playback)
and DAT Manager (audio DAT
playback/recording).
dmedia_tools.man.cddat Manual pages which describe CD
Manager, DAT Manager, and the CD
and DAT audio data formats.
dmedia_tools.data.prosonus Collection of digitally-sampled
audio sound files provided by
Prosonus. The library includes
ambient sounds, instrument
samples, music tags, and sound
effects. This subsystem is the
same as that first provided in
IRIX 4.0.1. It is included in
Digital Media Tools as a
convenience for those who haven't
already installed it.
dmedia_tools.man.prosonus Manual page describing the
Prosonus sound sample library.
dmedia_tools.sw.movietools Tools for movie capture,
playback, and conversion.
Includes Movie Player, Movie
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Maker, Capture Tool, and
makemovie.
dmedia_tools.data.movies Two sample movie files:
"somersault.mv" and
"sampleQT.mv".
dmedia_tools.man.movietools Manual pages for the movie
tools.
dmedia_tools.man.relnotes Release notes for the digital
media tools.
dmedia_tools.books.MediaTls_UG On-line Insight Digital Media
Tools User's Guide and Insight-
based SGI Help information for
the digital media tools.
2.2 Digital_Media_Tools_Subsystem_Disk_Space_Requirements
This section lists the subsystems (and their sizes) of the
Digital Media Tools.
If you are installing this option for the first time, the
subsystems marked ``default'' are those that are installed
if you use the ``go'' menu item. To install a different set
of subsystems, use the ``install,'' ``remove,'' ``keep,''
and ``step'' commands in inst to customize the list of
subsystems to be installed, then select the ``go'' menu
item.
Note: The listed subsystem sizes are approximate. Refer to
the IRIS Software Installation Guide for information
on finding exact sizes.
Subsystem Name Subsystem Size
(512-byte blocks)
dmedia_tools.sw.soundtools(default) 2708
dmedia_tools.man.soundtools(default) 41
dmedia_tools.sw.cddat (default) 2075
dmedia_tools.man.cddat (default) 80
dmedia_tools.sw.movietools (default) 10520
dmedia_tools.man.movietools (default) 23
dmedia_tools.data.prosonus (default) 21929
dmedia_tools.man.prosonus (default) 10
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dmedia_tools.data.movies (default) 1204
dmedia_tools.man.relnotes (default) 46
dmedia_tools.books.MediaTls_UG (default) XXXX
2.3 Installation_Method
The Digital Media Tools can be installed from IRIX. Refer
to the IRIS Software Installation Guide for complete
installation instructions.
IRIX 5.2 system software must be installed to run the
Digital Media Tools subsystems.
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3. Sound_Tools
This chapter lists information about the sound tools in the
Digital Media Tools set, including changes and additions
since the last release, bug fixes, known problems, and
documentation errors. The following audio tools are included
in the Digital Media Tools set:
o Sound Filer/Sound File Utility Programs
o Sound Editor
o CD Manager/DAT Manager
o AIFF-C File Utility Programs
o Prosonus Sound Sample Library
3.1 Sound_Filer/Sound_File_Utility_Programs
Sound Filer is a graphical, easy-to-use utility for browsing
and auditioning sound files, and for converting among sound
file formats, data formats, and sampling rates. Currently
supported sound formats are:
o aifc AIFF-C file format
o aiff AIFF file format
o next NeXT/Sunr Format
o wave Microsoftr RIFF WAVE Format
The supported data formats are raw signed or unsigned pulse
code modulation, mu-law, and floating point.
You can invoke Sound Filer from the command-line with the
command soundfiler. See the man page soundfiler(1) or Sound
Filer's on-line help for more information.
There are also three utility programs that provide similar
functionality from the command line:
o sfinfo displays information about the contents of a
sound file. Refer to the man page sfinfo(1) for more
details.
o sfplay plays audio files in any of the above standard
formats. Refer to the man page sfplay(1) for more
details.
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o sfconvert supports the file conversions described
above. Refer to the man page sfconvert(1) for more
details.
3.1.1 Changes_and_Additions This section lists
changes/additions to Sound Filer since the last release.
o None.
3.1.2 Known_Problems_and_Workarounds This section lists
known problems in Sound Filer and ways to work around them.
o When Sound Filer converts between AIFF-C and AIFF
files, it deletes many of the auxiliary header fields,
such as author string, sampler parameters, and
application-specific data. To convert between AIFF-C
and AIFF files, use the programs aiff2aifc and
aifc2aiff described in Section 3.5.1.
o Sound Filer does not yet support the standard audio
compression algorithms registered by Silicon Graphics
for use with AIFF-C files. To compress or decompress
AIFF-C audio data, use aifccompress and aifcdecompress
described in Section XXXXX. To directly play or record
files that contain compressed audio data, use playaifc
and recordaifc, which are installed from
dmedia_eoe.sw.audio.
o sfconvert now writes little-endian integer sample
files, but it does not yet write little-endian
floating-point output files. Currently, the only file
format that requires little-endian support is WAVE, and
it does not support floating point samples, so this is
an issue only when transferring raw floating point data
files between an SGI platform and a little-endian
machine.
o Sound Filer's convert window does not currently have a
selection for big- or little-endian. AIFF-C, AIFF,
Next/Sun, and raw data files are assumed to contain
big-endian data. WAVE files are assumed to contain
little-endian data. To read or write little-endian raw
data, use sfconvert.
o Use the program aifcinfo, described in Section 3.5.1,
to obtain a more detailed description of the audio data
and auxiliary information stored in an AIFF-C or AIFF
file than the description supplied by sfinfo. Note
that aifcinfo understands only AIFF-C and AIFF files,
while sfinfo understands several additional formats.
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3.2 Sound_Editor
Sound Editor (invoked from the command line as soundeditor)
is a Motif application for recording and editing soundfiles
in AIFF/C format. This program requires a Silicon Graphics
system with digital audio hardware components. A graphic
display of the audio stream data is presented along with
word-processing-style commands for manipulation. Sound
segments can be cut, copied, pasted, or mixed by marking a
region with the mouse and invoking the proper command.
Additional functions are provided to modify levels and to
perform fades and special effects.
You can customize the appearance of Sound Editor by altering
its Motif application defaults file, SoundEditor, in the
directory /usr/lib/X11/app-defaults.
See your Motif/X11 documentation regarding use of the
application defaults file.
3.2.1 Bug_Fixes This section lists the bugs fixed since
the previous release.
o The audio waveform is now displayed right side up
(correct polarity).
o The wave display is correctly cleared after File New
operation.
o Fade-in and out curve changed from linear to more
natural-sounding exponential.
o Clipping of sample overflow values properly
implemented.
o Louder and softer operations are exactly complementary.
o Fixed problem of core dump when dismissing File Browser
window.
o Fixed problem of core dump when screen13 font not
found.
3.2.2 Changes_and_Additions This section lists
changes/additions to Sound Editor since its previous
release.
o Selection of edit regions using mouse click-and-drag
changed to be compatible with standard style used by
word-processing applications.
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o User interface streamlined by removing meter window and
other non-essential buttons.
o Improved zoom functionality with ability to specify
exact timespan for wave view.
o Handles four channel audio files.
3.2.3 Known_Problems_and_Workarounds This section lists
problems in SoundEditor and ways to work around them.
o SoundEditor can edit only AIFF/C format soundfiles with
a sample width of 16-bits. Other types of files must
first be converted using the soundfile utility
programs.
o Selection operations using the mouse occasionally will
leave lines in the wave display that appear to be
unselected.
o At certain zoom levels, the wave display will show
aliasing artifacts.
o It is possible to create a situation where the time
ruler line in the wave display disappears temporarily.
o Under certain conditions, the keyboard accelerators can
become disabled. Bringing up the menu containing the
desired command usually corrects this situation.
o When altering the selected region during repeat play,
it is possible for the play region to lag behind the
user's input or sometimes play material outside the
marked region. This behavior normally corrects itself
after cycling through the marked play region.
See the man page soundeditor(1) and Sound Editor's on-line
help for additional information.
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3.3 CD_Manager_and_DAT_Manager
CD Manager and DAT Manager, invoked from the command line as
cdman and datman, allow you to play audio CDs and DAT tapes
on the IRIS SCSI CD-ROM and DAT drives. The audio is played
through the IRIS audio hardware.
CD Manager and DAT Manager also let you copy data from CD or
tape to a disk file in the computer's file system. Any such
copying is, of course, subject to copyright law.
DAT Manager is a recorder as well as a player. It can
record data coming from the IRIS audio hardware or from a
file in the computer's file system. The tapes recorded and
played by DAT Manager are compatible with commercial DAT
recorders.
CD Manager and DAT Manager are actually the same program.
The name used to invoke the program, or a command-line
option, determines whether the program runs as CD Manager or
as DAT Manager.
3.3.1 Known_Problems_and_Workarounds This section lists
problems in the CD Manager/DAT Manager software and ways to
work around them.
o Neither CD Manager nor DAT Manager lets you cue to an
index on a CD or tape.
o The only nonaudio data DAT Manager currently records is
program number and absolute time code. This means that
DAT Manager does not record program time. There is
currently no way to renumber the programs on a tape or
to erase a program number.
o DAT Manager displays uncorrected frame numbers when
playing back a tape recorded with SMPTE time code in
place of running time.
o When recording to a file from DAT Manager, the sampling
rate stored in the AIFF-C file header is the rate of
the most recently played portion of the DAT. This
means that given a DAT that has programs recorded at
different sampling rates, DAT Manager might create a
file with the wrong sampling rate if you have just
played a program with a different sampling rate from
the program about to be recorded.
Workaround: When recording to disk from a DAT that
contains programs with different sampling rates, use
separate AIFF-C files for the different programs. When
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you are about to record a DAT program to disk that has
a different sampling rate from the last program you
played, first play a portion of the new program. Then,
rewind to the beginning of the program and begin
recording to an AIFF-C file.
o The music catalog function is not currently implemented
for tapes because so few of them have the table of
contents necessary to uniquely identify a tape.
3.4 AIFF-C_Utility_Programs
Beginning with the IRIX 4.0.1 software release, Silicon
Graphics introduced AIFF-C (Audio Interchange File Format
with Compression extensions) as its standard audio
interchange file format. The AIFF-C format is an extended
version of the AIFF format, supported by Silicon Graphics
and Apple digital media applications. AIFF-C files can
store either compressed audio data or standard linear PCM
data, and optionally include header fields that store many
kinds of additional information such as text, sample
parameters, sample frame markers, and application-defined
data.
In the Digital Media Tools package, the digital media tools
that import audio data from disk files are now capable of
reading both AIFF-C and AIFF files. All of the standard
Silicon Graphics digital media tools that save audio data to
files now generate AIFF-C files by default.
Digital Media Tools includes a number of new command-line
utility programs that allow you to record, play back, and
convert files in the AIFF-C format. These programs differ
from the Sound Filer utilities described in Section 3.2 in
that they are designed for working exclusively with AIFF-C
and AIFF files. The AIFF-C conversion utilities described
in Section 3.5.1 preserve the auxiliary nonaudio data (loop
points, author string, application-specific data) stored in
the various optional AIFF-C (AIFF) header fields.
The AIFF-C utility programs are built on top of the Silicon
Graphics Audio File Library, and support the audio
compression algorithms for AIFF-C, which are built into the
library (CCITT G.711 and CCITT G.722). 4DGifts source code
for each of the utilities (except for aifcresample, which
contains proprietary high-quality rate-conversion code) is
included in the IRIS Digital Media Development Option
(DMDEV).
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3.4.1 Changes_and_Additions This section lists
changes/additions to the AIFF-C (and AIFF) utility programs
since their last release.
o None
3.4.2 Bug_Fixes This section lists the bugs fixed since
the last release of the AIFF utility programs.
o aifcresample now outputs a compressed file for
compressed input files.
3.4.3 Known_Problems_and_Workarounds This section lists
known problems in the AIFF-C (AIFF) utility programs and
ways to work around them.
o G.722 compression or decompression is CPU-intensive. To
record or play back an AIFF-C file that contains mono
or stereo audio data compressed using the G.722
algorithm, you might have to run recordaifc or playaifc
with nondegrading high priority. See the man page
npri(1) for information about how to do this. An
alternative is to record and play standard linear PCM
sample data into AIFF-C files, and compress/decompress
the data when necessary using aifccompress and
aifcdecompress.
o None of the AIFF-C conversion programs recognize the
comment-marker chunk described in the AIFF-C
specification. This chunk disappears when a file is
converted using one of the utilities.
o The AIFF-C utility programs are not able to decode the
Apple proprietary audio compression schemes (ACE/MAC
algorithms) described in the AIFF-C specification.
Workaround: Always uncompress AIFF-C files before
transferring them from a Macintosh to an SGI platform.
o aifcresample does not modify the optional AES channel
status information in the AIFF-C file header to reflect
the new sampling rate.
Workaround: If the AES channel status information says
the audio data should be played at one rate, and the
AIFF-C (AIFF) file header says the audio data should be
played at another rate, go with sampling rate in the
file header.
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4. Movie_Tools
This chapter lists information about the Movie Player, Movie
Maker, and Make Movie tools in the Digital Media Tools set,
including known problems. The movie tools are:
o Movie Player
o Movie Maker
o Make Movie
All of these tools can now read QuickTime (TM) movies.
Although neither Movie Maker nor Make Movie can write
QuickTime movies yet.
Please read chapter 5 for more detailed information about
the Capture tool.
4.1 Movie_Player
Movie Player (invoked from the command line as movieplayer)
is a graphical tool that allows you to play back movie
files. Movie files can be created using Movie Maker, Make
Movie, or Capture (see below). Movies can be silent or
include a soundtrack.
See the man page movieplayer(1) or Movie Player's on-line
help for more information.
A sample SGI movie file, somersault.mv, can be found in
/usr/share/data/movies. A sample QuickTime movie sampleQT.mv
is there too.
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4.1.1 Known_Problems_and_Workarounds This section lists
problems in the Movie Player software and ways to work
around them.
o The movie format version number has been increased to
3. Movies made or edited with this release of Movie
Maker might not play or might play incorrectly with the
previous version of Movie Player. However, the current
version of Movie Player plays all versions (1, 2 and 3)
of movies correctly.
o Movie Player does not work correctly over the network.
The user interface and images will display on the local
machine, but the audio will play on the remote machine.
o Movie Player does not support the playback of FIT image
sequences in this release. You can work around this
problem by using Movie Maker or Make Movie to convert
your FIT images to SGI Movie format.
o The -D option of Movie Player does not work. It is
supposed to make Movie Player be double buffered.
o MoviePlayer will allow the user to invoke apanel on
machines without audio.
o If you try to play a very large movie, such as one that
is full screen, the image will not display correctly if
it is zoomed at all.
4.1.2 Changes_from_previous_Movie_Player This section
lists the changes in the functionality and interface of
Movie Player from the version shipped with IRIX 4.0.5.
o Movie Player can now play QuickTime movies that use
Apple's "Animation" or "Video" compression.
o Movie Player 2.0 has been reimplemented as an X/Motif
application. To avoid conflicts with the standard X
toolkit options the command line options "-n", "-s" and
"-d" have been renamed to "-N", "-W" and "-D"
respectively.
o The scrollbar for rapidly moving to an arbitrary frame
in the movie has been replaced by a control triangle on
the movie itself. Use the left mouse button (button 1)
to click and drag the triangle to move the movie.
o The accelerator keys for zooming have been changed to
z for zooming up and d for zooming
down.
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o Movie Player can play movies that have been compressed
using MVC2 which is a compression alogirhtm which
allows for faster playback of movies.
o Movie Player can now play black and white movies and
movies with 8 bit RGB data.
4.1.3 Bug_Fixes This section lists the bugs fixed since
the last release of the Movie Player.
o Movie Player did not work on any mulit-processor
machine in the IRIX 5.1 release. It now works on
mulit-processors.
4.2 Movie_Maker
Movie Maker (invoked from the command line as moviemaker) is
a graphical tool for creating and editing movies. Movies
can include images from IRIS ImageVision Library image
files, sound from audio files, and images and sound from
movie files.
Either sound or silent movies can be created. Movie Maker
includes cut, copy, and paste editing capabilities for movie
files.
On-line help is available describing in detail how to go
about creating and editing movies.
4.2.1 Known_Problems_and_Workarounds This section lists
problems in the Movie Maker software and ways to work around
them.
o Optimizing a movie requires copying the movie file,
which can take a significant amout of disk space. If
there is not enough, Movie Maker will report this fact
and leave the movie unoptimized.
o The Undo command is still not supported in this
release.
o When previewing a movie, the commands under the Edit
menu are greyed out. However, the speed key shortcuts
are still active. Avoid using the speed keys when
previewing the movie.
o Movie Maker behaves unintuitively when inserting just
audio or just image frames into an existing movie. You
would expect that it would move the existing audio and
image data together to maintain the syncronization.
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However, only the data in the track that you are
inserting into gets moved. To workaround, you need to
insert an equal amount of the other data.
4.2.2 Changes_from_the_previous_Movie_Maker This section
lists the changes in the interface of Movie Maker from the
4.0.5 version.
o Movie Maker can read, but not edit, QuickTime movies
that use Apple's "Animation" and "Video" compression.
All or part of a QuickTime movie can be exported as an
SGI movie file for editing.
o Movie Maker now edits movies in place. This means that
any changes made to the movie are immediately reflected
in the movie file. The advantage of this change is
that much less disk space is required for editing
movies.
o All of the command-line options for creating movies
have been taken out of Movie Maker. The new
application Make Movie should be used for creating
movies from the command line.
o Movies stored in older SGI movie formats (versions 1
and 2) will be automatically converted to the current
version (3) when they are edited.
4.3 Make_Movie
Make Movie (invoked from the command line as makemovie), is
a simple command that can be used to create movies from the
shell from inside a shell script. It can take IRIS
ImageVision Library image files, audio files, and existing
movies and merge them into one movie file.
Common uses of makemovie are:
o making a movie from a sequence of rendered images,
along with a sound track, and
o translating a QuickTime movie into an SGI movie.
The man page for makemovie lists all of the available
options and includes some examples of how to use it.
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5. Capture_Tool
This chapter lists information about the capture tool in the
Media Tools set.
5.1 Capture_Tool
The Capture Tool (invoked from the command line as capture)
is a graphical tool that allows you to record audio files,
movie files or still images from the camera or other video
source and microphone.
Currently, the still image capture and movie capture modes
of the Capture tool work on either an Indy workstation or
Indigo2 workstation with any SGI video option board.
See the man page capture(1) or the Capture Tool's on-line
help for more information.
5.1.1 Changes_and_Additions This section lists changes and
additions to the Capture tool since the IRIX 5.1 release.
Capture has had a lot of work since its first release. It is
much more stable and has better image quality and
performance.
o An Image Quality button was added to the movie capture
mode so that the user can choose between high and lower
quality images. The high quality images record about
twice the amount of data, so expect a lower frame rate.
Previously, Capture only supported grabbing 8 bit
images.
o The user interface layout and wording has been changed
especially on the Settings panels.
o Error reporting has been greatly enhanced to handle out
of disk space problems as well as frame rate issues.
The user gets a clear message when the specified frame
rate is unattainable.
o The code has been optimized to attain the highest
possible frame rate given the frame size and image
quality settings.
5.1.2 Bug_Fixes Many, many bugs in Capture have been fixed
-- too numerous to list. It's almost like a new tool.
5.1.3 Known_Problems_and_Workarounds This section lists
known problems in the Capture Tool.
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o When in audio mode, it is possible to get the audio
window in a mode where it can not be resized. To fix
this, switch to video mode and back to audio.
o The default cropping in video is supposed to include
the entire image, but sometimes it is one pixel off.
If this is bothersome, you can reset it by bringing up
the Settings panel, picking "Square Frame" from the
crop area option menu, and then choosing "Full Frame"
from the same menu.
o Sometimes, no sound will be recorded, and no waveform
will appear in the audio mode. To fix, bring up the
Audio Control Panel (invoked from the command line as
apanel), and click on and off the Monitor button. You
should also make sure you have the input source set
correctly (to use the microphone, select Mic from the
Input menu).
o Since the system has limited video resources, it is
best to avoid running more than one application that
uses video. In particular, you shouldn't run Live
Video Input (videoin from the command line) at the same
time as running capture. Nor should you attempt to run
two instances of capture.
o It can take up to a second or two for video to start or
stop recording after you press the Record button.
o Don't attempt to record a movie with a Movie Frame Rate
higher than 30 frames per second.
o The Capture Tool creates large temporary directories to
hold the raw data when creating movies. Sometimes these
directories are not removed when capture exits. Since
the directories begin with a period, ".", you must use
"ls -a" to see them. Only remove Capture's temporary
directories when Capture is not running.
o When the video input timing switches between PAL and
NTSC, Capture will not always display the correct crop
area. It might specify that "No Crop" is selected,
however the red crop outline will not be full screen.
To workaround, reset the crop to "No Crop".
o If the frame rate on Capture is set to less than 1
frame per second, sometimes Capture will abort movie
creation after a short period of time. Avoid setting
fractional frame rates.
- 3 -
o It is possible to create movies using Capture, that are
not possible to play back. For example, a full sized,
uncompressed movie, with a high frame rate might be
impossible to play because of disk IO or CPU
limitations. Try to limit the size and image quality to
match the capbilities of the machine on which you want
to play the movie.
o Sometimes when previewing a movie, the cursor stays in
as a "stretch" cursor. It reverts back to the pointer
at the end of the preview.
o Capture doesn't work well when capturing audio data and
the input and/or output sampling rates are set to
Digital.