Grass Valley iTX Desktop v.2.6 - Manual (Page 314)

Preparing media items for playout
Select a poster frame
For any asset, you can select a poster frame to represent the content of the asset in search
results. For video clips, you normally select a keyframe for this purpose. For other types of
asset, you may select any image file (in one of the supported formats).
To select a poster frame for a video clip, you use the Poster Frame Picker:
The Poster Frame Picker displays a sample set of keyframes from a selected video clip. Below
the keyframes is a timeline that represents the duration of the clip. The timeline has a yellow
indicator bar; this shows the segment of the video clip from where the sample keyframes are
taken. The interval between the displayed keyframes depends on the length of this segment.
By using the Zoom In button to zoom into the timeline about a selected keyframe, you can view
keyframes at closer intervals from a smaller segment. As you do this, the yellow indicator bar
gets shorter. You can slide the indicator bar along the timeline to view keyframes at similar
intervals from different clip segments.
The Zoom Out button enables you to zoom out from the timeline, to view sample keyframes
from longer clip segments.
You may use an image that is not a keyframe as a poster frame. Instead of selecting a displayed
keyframe, you find the image after clicking Select File to open the Windows Open dialog.
For other types of asset apart from video clips, you use the Windows Open dialog to select an
image.
Select a keyframe as a poster frame for a video clip
1.
Click Set Poster Frame.
iTX displays the Poster Frame Picker. A red outline appears around a selected keyframe.
2. Do any of the following, as necessary, to display the keyframe you want to use as the
poster frame.
•
Click a sample keyframe about which to zoom in our out.
• Use the Zoom In and Zoom Out buttons to view a set of keyframes from a narrower or
wider range about the selected keyframe.
• Drag the yellow indicator bar along the timeline toe view keyframes from different
segments.
3. Click a keyframe to select it.
4. Click OK to close the Poster Frame Picker.
The Property Editor displays the poster frame.
March 2015 iTX Desktop: Operator Manual 294