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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Well, it depends on several things, but the
encode is generally more expensive than decode. Therefore, I’d move
the queue closer to ffenc_h263 (or add another queue there, if you’ve got
more than 2 hardware threads).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>If you don’t need the generality of
the decodebin, you could try hand-building that part of the pipeline. Certain
decoders might be faster than others.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I’ve never used it, but you might
find the ‘cpureport’ element helpful in determining how much time
is spent in the various segments of your pipeline.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Matt<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Umakant Goyal
[mailto:umakantgoyal1@gmail.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, February 02, 2011
00:39<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">Discussion
of the development of GStreamer</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> [gst-devel] Increase
Performance of Transcoding Pipeline</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Hi All,<br>
<br>
Are there elements that can help to increase the performance of pipeline if i
would insert them into the pipeline.<br>
Actually, i am using gstreamer to transcode video file from one format to
another format. What i found that this process is taking lot of CPU.<br>
Now i want to optimize the pipeline to make it eats less CPU. I am using
following pipeline to transcode data:<br>
<br>
<b><span style='font-weight:bold'>filesrc -> decodebin2 -> queue ->
ffmpegcolorspace -> videoscale -> capsfilter -> ffenc_h263 ->
filesink</span></b><br>
<br>
Any help/pointer/ will be appreciated. Can any one also share which element is
eating lot of CPU in above given pipeline?<br>
<br>
Thanks in Advance<br>
<br>
<o:p></o:p></span></font></p>
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