[gstreamer-bugs] [Bug 551509] ERROR:(gstbasetransform.c:1144):gst_base_transform_prepare_output_buffer: assertion failed: (*out_buf != NULL)

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gstreamer (core) | Ver: HEAD CVS




------- Comment #1 from Stefan Kost (gstreamer, gtkdoc dev)  2008-09-09 13:49 UTC -------
This is because of jpegdec having width and heigh on its sink-caps. If I
determine sizes and use full caps, I don't get the gstbasetransform-assertion,
but 
0:00:00.121062159 27204  0x81cbfd0 WARN               jpegdec
gstjpegdec.c:1042:gst_jpeg_dec_chain:<jpegdec0> error: Failed to decode JPEG
image
0:00:00.121425424 27204  0x81cbfd0 WARN               jpegdec
gstjpegdec.c:1042:gst_jpeg_dec_chain:<jpegdec0> error: Error #69: Unsupported
marker type 0x%02x
0:00:00.121537736 27204  0x81cbfd0 WARN               basesrc
gstbasesrc.c:2234:gst_base_src_loop:<filesrc0> error: Internal data flow error.
0:00:00.121604089 27204  0x81cbfd0 WARN               basesrc
gstbasesrc.c:2234:gst_base_src_loop:<filesrc0> error: streaming task paused,
reason error (-5)
ERROR: from element /GstPipeline:pipeline0/GstJpegDec:jpegdec0: Failed to
decode JPEG image

setting the framerate via capsfilter is the method we document for
pngdec/jpegdec to not eos after first picture. This is needed to produce a
stream with freeze to e.g. overlay an image on a video with videomixer.


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