[gst-devel] jpegenc only decodes one frame, then stream stops

[John Buckley]

Hello,
Did this ever get resolved?  I'm having the same problem.
My command line looks like this.  It captures the first fram and freezes
with no errors.
gst-launch v4l2src ! image/jpeg,width=320,framerate=30/1,rate=30 ! jpegdec !
ffmpegcolorspace ! ximagesink    

John Buckley


Tim Hilden wrote:
> 
> hi,
> 
> I need gstreamer for the following: The frames of a video stream need to
> be converted to jpeg images. So I connected a
> filesrc-demuxer-decoder-jpegenc-identity-fakesink.
> The identiry's "handoff"-signal is used to read the current frame and
> store it to a file. The storing will be replaced with some more
> processing later which is not part of gstreamer. But the problem is that
> this stream only encodes the first frame. After that the stream is
> "stuck". I did not get any error messages on the bus and the q_main_loop
> is still running. So do I have to tell the jpegenc to encode the next
> frame or anything?
> The lack of doc and sample code is what makes programming gstreamer so
> hard for me. That and the fact that I don't really want to use GLib and
> main_loops, because it's for a QT app. But QT's phonon is way not enough
> for what I need.
> 
> one more (simple) question: does a stream have to have a sink? Would the
> fakesink be neccessary in my case?
> 
> Tim
> 
> 
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