J784S4XEVM: How to get the h264 hw encoder working with gstreamer

Joseph Dobesh

Part Number: J784S4XEVM

We are trying to get gstreamer to use the HW h264 video codec to do encoding. Right now it seams to only do SW encoding. We are only getting a FPS of about 18. I enabled the vpu0 andv vpu1 in my device tree. Yes we are running TI Linux. The gstreamer scrpt is as follows:

gst-launch-1.0 v4l2src device=/dev/video-isx031-cam0 ! "video/x-raw,width=1920,height=1536,format=UYVY" ! videoconvert ! v4l2h264enc ! h264parse ! rtph264pay ! udpsink host=192.168.0.112 port=50000 sync=false

The v4l2 and wave5 drivers are building and loading. I see the video-codec@421000 in the device tree driectory with status = okay, but when I do a dmesg | grep video I do not see anything loading.

I feel we are close. It must be someting simple.

3 days ago

0 Sarabesh Srinivasan 3 days ago

TI__Mastermind 18420 points

Hello,

Which SDK version are you using?

Thanks,
Sarabesh S.

0 Joseph Dobesh 3 days ago

Prodigy 170 points

09.02.00.05

0 Joseph Dobesh 2 days ago

Prodigy 170 points

Update, It appears the the h264 may be working. No 100% sure. We were able to some statistical analysis of each step of the gstreamer script. It appears that the bottle neck is in videoconvert. The thing is we see an increase in FPS if we just throw data into fakesink after videoconvert. When we add the encoder back into the script, videoconvert slows way down.

0 Sarabesh Srinivasan 6 hours ago in reply to Joseph Dobesh

TI__Mastermind 18420 points

Hi Joseph,

What is the result if you take out the videoconvert element? Also, could you add GST_DEBUG=caps:6,autovideoconvert:6 gst-launch-1.0... to your pipeline and share the logs.

Thanks,
Sarabesh S.

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J784S4XEVM: How to get the h264 hw encoder working with gstreamer