Poor CPU utiization: DM365 and gstreamer

[kartik natarajan]

Hi,

    I have constructed a gstreamer application (for DM365) on the lines of this:

gst-launch -v 'v4l2src always-copy=FALSE num-buffers=800 input-src=composite ! video/x-raw-yuv, format=\(fourcc\)NV12, width=720, height=480 ! TIVidenc1 codecName=h264enc engineName=codecServer ! udpsink port=1234 host=xxx'

Earlier the above gstreamer gst-launch seemed to hog up 80+% of the CPU on the DM365.

So I wrote a gstreamer application and constructed a pipeline v4l2src-> h264enc -> rtph264pay -> udpsink and executed and figured that the CPU utilization is still the same.

video streaming is just about 40% of my application code so 80% is a very high share of utilization.

Am I missing something here?

Can I better this performance of gstreamer ?

Thanks,

N.Kartik

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[simosimo]

you have to configure x264enc, the default configuration is so higher.
try the option speed-preset=ultrafast

[Emile Semmes]

On 9/6/2012 6:31 PM, kartik natarajan wrote:

Hi,

    I have constructed a gstreamer application (for DM365) on the lines of this:

gst-launch -v 'v4l2src always-copy=FALSE num-buffers=800 input-src=composite ! video/x-raw-yuv, format=\(fourcc\)NV12, width=720, height=480 ! TIVidenc1 codecName=h264enc engineName=codecServer ! udpsink port=1234 host=xxx'

Earlier the above gstreamer gst-launch seemed to hog up 80+% of the CPU on the DM365.

So I wrote a gstreamer application and constructed a pipeline v4l2src-> h264enc -> rtph264pay -> udpsink and executed and figured that the CPU utilization is still the same.

video streaming is just about 40% of my application code so 80% is a very high share of utilization.

Am I missing something here?

Can I better this performance of gstreamer ?

Thanks,

N.Kartik

Add contiguousInputFrame=TRUE to your TIVidenc1 element.

Also, since this is a TI related plugin issue, you're better off cross posting there as well. This mailing list is more so for general Gstreamer issues; you're having a TI-related issue.

https://gforge.ti.com/gf/project/gstreamer_ti/forum/?action=ForumBrowse&forum_id=187

I've seen your posts here and it doesn't look like you've looked at the TI provided documentation for Gstreamer at all. A lot of us TI developers have gone through the same issues and have posted solutions as well. You'd be well off (as well as any other TI developer) looking at the forum and looking at the TI Gstreamer wiki.

Important links:
http://processors.wiki.ti.com/index.php/Category:DMAI_GStreamer_Plug-In
http://processors.wiki.ti.com/index.php/GstTIPlugin_Elements
http://processors.wiki.ti.com/index.php/Example_GStreamer_Pipelines


Regards,
Emile

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