To make it absolutely clear; I think that the gstreamer developers are doing a great job! I also absolutely think that they also appreciate "user input" (in this case, mine and Luis') on what features we'd like to see in gstreamer. Therefore, I like to take the opportunity to bring up this suggestion again. I think that every time this question is brought up here on the mailinglist is strengthens the point that a "snapshot element" in gstreamer is a good idea and that it would increase the attractiveness of the entire gstreamer framework. /Fredrik Persson <div>On 8/2/07, Luis de Bethencourt <<a href="mailto:bethencourt@gmail.com">bethencourt@gmail.com</a>> wrote:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Fredrik, I agree. Unfortunately this won't be done in time for my need for it, so I will have to dive in and do it the hard way. But it would be nice to make the path for future newbies easier. Thumbs are something most video programs need and have in common Luis de Bethencourt On 8/2/07, Fredrik Persson <<a href="mailto:fredrik.p.persson@gmail.com">fredrik.p.persson@gmail.com</a>> wrote: > As a gstreamer newbie I started writing a small python/gstreamer app about a > year ago. Fetching a snapshot out of a running videostream took me months. I > almost abandoned gstreamer altogether because of this. This feat, currently, > requires an unproportionally huge knowledge of gstreamer inner workings to > accomplish. > > I also see this question appear from time to time on the mailing list. > Therefore, in all humbleness, I suggest to the gstream core developers to > incorporate into gstreamer a snapshot element that hides this mess from a > regular programmer. > > Best regards, > > Fredrik Persson > > On 8/2/07, Luis de Bethencourt < <a href="mailto:bethencourt@gmail.com">bethencourt@gmail.com</a>> wrote: > > I'll give it a try this afternoon. > > > > Thanks a lot, > > Luis de Bethencourt > > > > On 8/2/07, Tim Müller <<a href="mailto:t.i.m@zen.co.uk">t.i.m@zen.co.uk </a>> wrote: > > > On Tue, 2007-07-31 at 20:32 +0100, Luis de Bethencourt wrote: > > > > > > > ... I would need to get a pixbuf from the frame at the middle > > > > of the video. First frame is not as representative because of > > > > fade ins. How can I do this in gstreamer? > > > > > > You might want to have a look at totem's video-thumbnailer for > > > inspiration. It's a bit clunky, but fairly straight-forward (basically > > > it just uses playbin, sets it to PAUSED state, seeks, gets the last > > > frame via playbin's "frame" property and shoves that into a conversion > > > pipeline to get a GdkPixbuf). > > > > > > You can probably achieve the same thing with a pipeline like: > > > > > >  filesrc location=video.file ! decodebin ! ffmpegcolorspace ! > > > videoscale ! > > > > video/x-raw-rgb,width=64,height=64,bpp=24,depth=24,red_mask=... > ! > > > fakesink > > > > > > and then get a RGB24 buffer via fakesink's preroll-handoff signal (which > > > is emitted in PAUSED state), which in turn is easily convertible into a > > > GdkPixbuf or whatever you need. > > > > > > Cheers > > >  -Tim > > > > > > > > > > > > > ------------------------------------------------------------------------- > > > This SF.net email is sponsored by: Splunk Inc. > > > Still grepping through log files to find problems?  Stop. > > > Now Search log events and configuration files using AJAX and a browser. > > > Download your FREE copy of Splunk now >>   <a href="http://get.splunk.com/">http://get.splunk.com/</a> > > > _______________________________________________ > > > gstreamer-devel mailing list > > > <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> > > > > <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> > > > > > > > > > -- > > Luis de Bethencourt Guimerá > > luisbg > > < <a href="mailto:bethencourt@gmail.com">bethencourt@gmail.com</a>> > > GPG: B0ED1326 > > > > > ------------------------------------------------------------------------- > > This SF.net email is sponsored by: Splunk Inc. > > Still grepping through log files to find problems?  Stop. > > Now Search log events and configuration files using AJAX and a browser. > > Download your FREE copy of Splunk now >>   <a href="http://get.splunk.com/">http://get.splunk.com/</a> > > _______________________________________________ > > gstreamer-devel mailing list > > <a href="mailto:gstreamer-devel@lists.sourceforge.net"> gstreamer-devel@lists.sourceforge.net</a> > > > <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> > > > > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Splunk Inc. > Still grepping through log files to find problems?  Stop. > Now Search log events and configuration files using AJAX and a browser. > Download your FREE copy of Splunk now >>  <a href="http://get.splunk.com/">http://get.splunk.com/</a> > _______________________________________________ > gstreamer-devel mailing list > <a href="mailto:gstreamer-devel@lists.sourceforge.net"> gstreamer-devel@lists.sourceforge.net</a> > <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> > > -- Luis de Bethencourt Guimerá luisbg <<a href="mailto:bethencourt@gmail.com">bethencourt@gmail.com</a>> GPG: B0ED1326 </blockquote></div>