getExportFilters method
Returns the list of all the active filters, including the GIF filter
Implementation
@override
List<String> getExportFilters() {
final List<String> filters = super.getExportFilters();
final bool isGif = format.extension == VideoExportFormat.gif.extension;
if (isGif) {
filters.add(
'fps=${format is GifExportFormat ? (format as GifExportFormat).fps : VideoExportFormat.gif.fps}');
}
return filters;
}