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Bug 355210 - Sample pipeline from the documentation doesn't work properly
Sample pipeline from the documentation doesn't work properly
Product: GStreamer
Classification: Platform
Component: gst-plugins-good
Other All
: Normal normal
: 0.10.5
Assigned To: GStreamer Maintainers
GStreamer Maintainers
Depends on:
Reported: 2006-09-10 00:00 UTC by Zbigniew Chyla
Modified: 2006-09-15 16:02 UTC
See Also:
GNOME target: ---
GNOME version: 2.15/2.16

Description Zbigniew Chyla 2006-09-10 00:00:55 UTC
Please describe the problem:
When executing sample pipeline from multipartdemux documentation (,
the ximagesink element doesn't display enything.

Steps to reproduce:
Create /tmp/test.multipart file using the following command (sample pipeline from multipartmux documentation with "num-buffers=500" added):
$ gst-launch videotestsrc num-buffers=500 ! video/x-raw-yuv, framerate=\(fraction\)5/1 ! jpegenc ! multipartmux ! filesink location=/tmp/test.multipart

Execute the following command (from multipartdemux documentation):
$ gst-launch filesrc location=/tmp/test.multipart ! multipartdemux ! jpegdec ! video/x-raw-yuv, framerate=\(fraction\)5/1 ! ffmpegcolorspace ! ximagesink

There's no error reported, but the commad doesn't open any window with ximagesink output.

Execute the same command without setting framerate:
$ gst-launch filesrc location=/tmp/test.multipart ! multipartdemux ! jpegdec ! ffmpegcolorspace ! ximagesink

This time ximagesink works as expected.

Actual results:

Expected results:

Does this happen every time?

Other information:
This is GStreamer 0.10.9 from Garnome:
$ gst-launch --version
gst-launch-0.10 version 0.10.9
GStreamer 0.10.9
Unknown package origin
Comment 1 Wim Taymans 2006-09-15 16:02:39 UTC
        * gst/multipart/multipartdemux.c: (gst_multipart_demux_chain):
        Fix documentation, it is not possible to control the framerate of jpegdec
        using filtered caps yet. Fixes #355210.
        Return the downstream GstFlowReturn instead of GST_FLOW_OK so that we
        stop when there is an error.