User Manual

DVI2USB 3.0 User Guide QuickTime video adjustments (Mac)
QuickTime video adjustments (Mac)
In addition to fine tuning specific capture attributes, on a Mac you can also configure how the grabber works
with third party QuickTime applications. The Epiphan System Preferences utility lets you configure how
items like the resolution presented to the application and whether or not the image is rotated and more. See
the table below for an explanation of each option.
The adjustments made here are stored in the device driver and are used until you change them again. Be
aware that third party QuickTime compatible applications can also have settings that may make it appear your
settings are not being honored. If you're having difficulty seeing your changes, check the third party
application's advanced settings.
After changing QuickTime settings you may need to quit and restart your QuickTime compatible
application to force it to read the updated settings.
Item Description
Video Resolution
Choose from Actual, Default or Fixed.
With Actual, the captured source resolution is sent to QuickTime. If at
any time during a recording session no signal is detected, an error will
occur that could interrupt the recording session.
With Default, the specified resolution is sent only when there is no signal
on the video grabber. If the reported resolution doesn't match the actual
frame size, frames are resized.
With Fixed, you can choose the resolution you want to send to
QuickTime, regardless of what is coming in through the video grabber.
The video will be scaled (up or down) to match the specified resolution.
23