ATS-812: PoC FFmpeg (experimental) - add frame width & height

- eg. to demo transcoding of video resolution (or even resize of frame if output to an image)

alfresco-transformer-base/src/main/java/org/alfresco/transformer/util/RequestParamMap.java

@@ -73,8 +73,10 @@ public interface RequestParamMap
     String NOT_EXTRACT_BOOKMARKS_TEXT = "notExtractBookmarksText";
     String PAGE_LIMIT              = "pageLimit";
 
-    // TODO PoC for FFmpeg
+    // TODO PoC for FFmpeg - effectively target options (note: if we need specific source options, may need extra set)
     String TIME_OFFSET             = "timeOffset";
     String DURATION                = "duration";
     String FRAMES_NUM              = "framesNum";
+    String FRAME_WIDTH             = "frameWidth";
+    String FRAME_HEIGHT            = "frameHeight";
 }