I have the raspi collecting images every 5 seconds, then shipping them off to a local box i'm dedicating to render the videos using ffmpeg (ffmpeg -r 30 -i "images_*.jpg" [+ x264 and crf at 23]). Then I ship them off to S3 for storage/serving. The UI was custom built and is still very bare right now. Simply includes HTML5-video object with 2 video options (ogv and mp4). The quality of the rendered video, as well as capture settings (controlling exposure instead of auto, etc.) still needs a lot of work, and this is an ongoing project for me.