package org.ffmpeg.android.filters; import java.util.ArrayList; import java.util.Iterator; public abstract class VideoFilter { public abstract String getFilterString (); public static String format (ArrayList<VideoFilter> listFilters) { StringBuffer result = new StringBuffer(); Iterator<VideoFilter> it = listFilters.iterator(); VideoFilter vf; while (it.hasNext()) { vf = it.next(); result.append(vf.getFilterString()); if (it.hasNext()) result.append(","); } return result.toString(); } }