4-74
Section 4— Switcher Operations
Freeze Mode
Freeze selects between “live” and “frozen” pictures. A frozen
picture is like a snapshot you take with a still camera. The
freeze/
unfreeze function toggles between the two states. Press the
FRZE
button once to freeze (it high tallies) , press a second time to
unfreeze. When enabled, freeze stops data from being written to
the frame store, resulting in a frozen image.
Frame Store Field Modes
There are a number of video store parameters that may be used
when manipulating frozen images. While a full frame is always
frozen, you can choose to view the image by field instead. The
choices are described below.
Field 1 / Field 2
The
FIELD 1
and
FIELD 2
buttons
determine which field will be
displayed. Either field may be selected, or both may be selected at
the same time. (When unfrozen, the Field buttons have no effect.)
A full frame is always frozen, regardless of the state of these
buttons. This method of storage allows the operator to decide
between fields and frames after the image is frozen.
2 Field / 4 Field
A two-field sequence is the normal default image frozen in the
frame store. However, the memory architecture also allows
storage of a complete four-field color frame. A
FRAME TYPE
button located in the Frame Store/Video Store Menu allows you
to switch between two-field storage mode and four-field storage
mode. 4-field mode stores 2 images. 2-field mode stores 4 images.
Not all of the Frame Store functions are available in four-field
mode, but this mode produces the highest quality video, since
there is no decode/encode processing.
Summary of Contents for Grass Valley 3000
Page 16: ...xvi Preface ...
Page 108: ...2 72 Section 2 Startup Configuration ...
Page 115: ...3 7 Transitions Figure 3 1 A Mix Transition Starting Video Midway Transition Ending Video ...
Page 141: ...4 3 Starting Conditions Figure 4 1 Source 1 Figure 4 2 Source 2 ...
Page 222: ...4 84 Section 4 Switcher Operations ...
Page 240: ...Appendix A Shaped and Unshaped Video A 18 ...
Page 256: ...B 16 Appendix B Keyframe Facts ...
Page 262: ...Appendix C Super Black C 6 ...
Page 276: ...G 14 Glossary ...