tag:blogger.com,1999:blog-3573870775606428240.post5295790179155950478..comments2010-04-06T17:09:42.852-05:00Jonathan Thomashttp://www.blogger.com/profile/16385261268721516168noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-3573870775606428240.post-52221344716893500722009-01-04T15:33:00.000-06:002009-01-04T15:33:00.000-06:00The strategy I'm using in pitivi right now is similar to the thumbnailer which edward mentioned. Except it produces a cairo surface instead of a pixbuf, it caches multiple thumbnails by timestamp, and it can draw a sequence of thumbnails into a cairo context when asked to do so. The goal is to separate the fetching/caching of thumbnails from the display code, so that the two can happen asynchronously, and also to make sure that drawing a long strip of thumbnails doesn't slow down updates.brandon lewishttp://www.blogger.com/profile/17046865031973847470noreply@blogger.comtag:blogger.com,1999:blog-3573870775606428240.post-87261363194988847592008-12-08T03:19:00.000-06:002008-12-08T03:19:00.000-06:00You can also have a look at the code I have written for Advene, which exports the playbin _frame property to png, using a gstreamer pipeline. See snapshot() method in http://svn.gna.org/viewcvs/advene/trunk/lib/advene/player/gstreamer.py?view=markupOlivier Aubertnoreply@blogger.comtag:blogger.com,1999:blog-3573870775606428240.post-84516629164579574182008-11-16T02:02:00.000-06:002008-11-16T02:02:00.000-06:00you should also listen for gst.MESSAGE_ERROR on the bus !<BR/><BR/>Else, if you use a file that produces an error in the pipeline... you'll never see that and your script will be waiting there forever.<BR/><BR/>Otherwise, you can have a look at the generic thumbnailer we use in PiTiVi (pitivi/thumbnailer.py and pitivi/elements/thumbnailsink.py).bilboedhttp://www.blogger.com/profile/00440155533873481574noreply@blogger.com