Video Setup.
The video setup tab of the run manager allows the user:
- To load in video files to be associated with a particular run file
- In the case of video from 3rd party systems, manually or automatically synchronise them.
The analysis program checks the selected run file, if it contains synchronisation information then it expects a video file from a VIDEO4 and does not allow the user to manually synchronise the data and video. If the run file contains no video synchronisation information, then it assumes that it is from a data logger and that the video if therefore from a 3rd party video recorder that will require manual or automatic synchronisation.
Loading in a video file from a VIDEO4.
When the analysis program detects that the run files includes video synchronisation information, then it assumes that the video file is going to be from the VIDEO4 and so no additional synchronisation is required. In this case the video tab of the run manager will look similar to this:
Loading in a video file from a 3rd party video recorder.
When the analysis program detects that the run files doesn’t contain any video synchronisation information, then it assumes that the video file is going to be from a 3rd party video recorder and will require manual synchronisation. In this case the video tab of the run manager will look similar to this:
At the top we specify the video file to be loaded. Note that this must be a VD4 format, no other video format will work. To convert the source video file from the 3rd party recorder into VD4 format, the user must use the “media to VD4 convertor”.
Once the video is loaded, then we must synchronise the video and the data so that the analysis program “understands” what video frame matches which data sample.
Manual synchronization
The video and the data can be “locked” together at 1 or 2 different points. Typically for shorter runs (15 minutes or less) then only a single synchronisation point is required. In this case the user selects a point in the video and the data that match and then clicks the “lock” button. In the case that the users needs to synchronise the data and video at 2 points, then tick the box to display the additional options:
Note that there is no “right” way to know what point of video and data match to enable them to be locked or synchronised. When using a single point it is typically simplest to pick a point in the data and video when just leaving the pits, or pulling away from the start line. When using 2 points, it’s normally desirable to pick a point towards the end of the data, perhaps putting back into the pits, or maybe identifying the last braking point.
Once the data has been synchronised with the video then it can be used in the software for data and video analysis, or export of the video.
Automatic synchronization of 3rd party videos
To manually synchronise data and video the user selects a point (or 2 points) in the data and video that match, and these points are “locked together”. However, in practice locating suitable points in the data can be quite difficult. To simplify this process Race Technology sell the optional [Hardware/VideoSynchroniser]“video synchroniser” adapter. This is a simple way to synchronise data from a Race Technology data logger and almost any video recording system.
The "Auto Sync" button in the "Sync control" section is used to automatically synchronise data and video from a 3rd party recorder together.
To auto synch a 3rd party video:
- The software searches and finds the start and end point of the data automatically:
- Once this process is completed the synchronisation time is automatically added:
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