To synchronise video with data, it is necessary that the synchronisation radios were successfully used during the session.
The procedure to complete the synchronisation on the PC is as follows:
Be aware that AVI files typically use 3 to 4 MBytes of hard disk for each second of video. Although there is no limit on the size of AVI file that the PowerLine software can work with, it is obviously beneficial to be selective about the clips which are downloaded.
Each session can be associated with more than one AVI file, so it is not necessary to download the video in one file.
Once synchronisation is complete, the video can be brought up in the video window using video toolbar button, selecting View->Video Window, or by using the keyboard hotkey CTRL-V. The video window can be displayed as a large or small window, according to the checkbox top left. The camera's timestamp of the video (usually its location on the tape) is printed in the titlebar of the window.
Select a clip from the drop down box, and the Play/Back/Forward controls on the Video Window will progress you through the frames, or you can drag the video marker along.
By default, the names of the clips in the drop-down box are the file names. There is an option to replace these with a caption by clicking on the Clips button:
A drop down box enables the speed of playback to be changed. When playback hits the end of the clip, it goes back to the beginning. Start and end tabs can be created so that the playback shuttles between these two points.
Video stills can be extracted for use in printing.
Press the grab stills button to bring up a dialog box where you can enter the following:
So for example, 8 frames grabbed spaced at 3 frame intervals would span 21 frames in total, which at 25 frames per second would span just under a second.
The location of stills are indicated on Trace Views by vertical grey lines. When you print a Trace View, the view is printed as the first page with numbers against each vertical line. The stills are printed on subsequent pages labelled with the corresponding numbers.
Stills are stored as JPGs within the session's index file. As more stills are taken, the index file will increase in size.
To delete unwanted stills, press the still edit button. A list of stills is shown, indexed by the time since the start of the session measured in milliseconds.
When video has been synchronised to a session, the regions where this has been successful will be marked at the top of Trace and Profile Views by a narrow grey band inside a box. Whenever the cursor is moved to such a region, the Video Window will show the relevant frame. Move the cursor through the data, and the frames will change.
If the cursor is positioned outside of the video region, then the Video Window is blank.
The software provides several options for video file storage. These are contained in the Video tab of the Tools->Options dialog: