<div class="gmail_quote">On Mon, Feb 9, 2009 at 11:05 PM, René Stadler <<a href="mailto:mail@renestadler.de">mail@renestadler.de</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Marc wrote: > Hi, > > I am trying to build an application more or less like Cheese > (<a href="http://projects.gnome.org/cheese/" target="_blank">http://projects.gnome.org/cheese/</a>). However I would like to switch from > just showing the webcam to a recording state "smoothly" when the user > press the record button. > > So far I have tried the following approaches without succes: > >    1. Changing location property of filesink while playing (from >       /dev/null to a real path). This is not possible (filesink tells me >       so). >    2. Open 2 different pipelines both of them pointing to the same >       v4l2src (no success since only one pipeline can access the webcam >       at once). > > Since these approaches were not working I tried to set the pipeline to > STATE_NULL, change the location of the filesink, and then set the > pipeline to STATE_PLAYING again. However, when setting the pipeline to > STATE_NULL, no STATE_CHANGE event is thrown. Is this the expected behavior ? > > Any ideas ? Can the smooth "play-to-record" be accomplished with GStreamer ? > > Thank you > PD. For the record: I am programming in Python and the pipeline I am > trying to manage is the following: > > gst-launch-0.10 v4l2src ! tee name=videoout ! queue ! videorate ! > video/x-raw-yuv,fps=15 ! queue ! theoraenc quality=60 ! queue ! muxout. > pulsesrc ! audio/x-raw-int,rate=22000,channels=1,width=16 ! queue ! > audioconvert ! vorbisenc ! queue ! muxout. oggmux name=muxout ! filesink > location=test.ogg videoout. ! queue ! ffmpegcolorspace ! ximagesink > > -- > Marc S. > I added an element called "camerabin" to gst-plugins-bad today, I think it is exactly what you are looking for.</blockquote></div> can you tell me a little bit more about this bin? any docs or usage? thanks. --  Levente                               "Si vis pacem para bellum!"