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# Annotator
This is a simple tool for annotating (short) videos. It is designed to facilitate frame-level annotations, at the expense of having to load the entire video into memory. Future versions may relax this requirement.
## Building
Requirements are:
* libconfuse (for parsing config file)
* opencv (for video playback)
Compile by running:
```console
./configure
make
```
## Usage
Available labels are configured in `annotator.conf`. Controls are as follows:
* Number keys: Make annotation
* Escape: Quit (doesn't save)
* Space: Pause
* Left arrow: Go backward 1 frame
* Right arrow: Go forward 1 frame
* Up arrow: Seek backard 1 second
* Down arrow: Seek forward 1 second
* u: Undo
* r: Redo
* Delete: Remove closest annotation to current frame
* s: Save (there is no autosave)
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