[gstreamer-bugs] [Bug 345396] New: Performance degrades with gstreamer0.10

[GStreamer (bugzilla.gnome.org)]

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 GStreamer | gstreamer (core) | Ver: 0.10.5

           Summary: Performance degrades with gstreamer0.10
           Product: GStreamer
           Version: 0.10.5
          Platform: Other
        OS/Version: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: enurkkal at excite.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


Please describe the problem:
The following sequence:

takes a huge amount of CPU load. This happens with every version of
gstreamer0.10.x  (up to 0.10.5).

Using gstreamer-0.8.12, gst-plugins-0.8.12, gst-ffmpeg-0.8.7 everything works
quickly! 

Performance is more than FIVE times greater with gstreamer0.10.x.!!

Steps to reproduce:
1. Install gstreamer0.10-0.10.4, gst-plugins-base0.10-0.10.x,
gst-plugins-good0.10-0.10.x, gst-ffmpeg-0.10.1
2. command line: gst-launch filesrc location=mpeg4.avi ! ffdemux_avi !
ffdec_mpeg4 ! ffmpegcolorpace ! ximagesink
3. top (or similar to watch performance)
4. Install gstreamer-0.8.12, gst-plugins-0.8.12, gst-ffmpeg-0.8.7 
5. command line: gst-launch filesrc location=mpeg4.avi ! ffdemux_avi !
ffdec_mpeg4 ! ffmpegcolorpace ! ximagesink
6. top (or similar) and watch performance be 5 times greater!

Actual results:
Performance may be observed very poor with gstreamer10.

Expected results:
Performance is poor.

Does this happen every time?
Yes

Other information:
Many combinations of ffmpeg and plugins have been tested to comfirm bug is in
gstreamer core.


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