Anti clockwise rotated image with imx219 (nv_imx219.c) while streaming

[sau]

Hello,
I am jetpack 35.1 and using the imx219 sensor and driver file: nv_imx219.c
I am able to stream (I am checking the stream through HDMI connected to a monitor) the imx219 using below command:

$ export DISPLAY=:0
$ DISPLAY=:0 gst-launch-1.0 nvarguscamerasrc sensor-id=0 ! 'video/x-raw(memory:NVMM), width=(int)3280, height=(int)2464, format=(string)NV12, framerate=(fraction)21/1' ! nvvidconv ! queue ! xvimagesink

With above command, the stream is rotated by 90 degree anti-clockwise.

I can see that I am able to rotate the image with adding element "nvvidconv flip-method=2" but still i loose kind of resolution.

Bydefault, I have readout_orientation = "90"; in modes definition for imx219 and I tried to change it to various values e.g. 270 or 0 but there is no effect of that in streaming.

So could you please think of the reason why I am getting a rotated image in output.

Many thanks in advance.

[ShaneCCC]

It’s could be the sensor scan line have 90 degree with display scan line.
For the flip-method could be the sensor output ratio different with display cause crop. You try some 1080p or 720p sensor mode to confirm it.

[sau]

Hello ShaneCCC,
Thank you for your response. Could you please elaborate the below statement or provide some some steps. I am sorry, I could not understand what you said and what should be my next steps.

“For the flip-method could be the sensor output ratio different with display cause crop. You try some 1080p or 720p sensor mode to confirm it.”

[ShaneCCC]

Try below command.

export DISPLAY=:0
$ DISPLAY=:0 gst-launch-1.0 nvarguscamerasrc sensor-id=0 ! 'video/x-raw(memory:NVMM), width=(int)1920, height=(int)1080, format=(string)NV12, framerate=(fraction)21/1' ! nvvidconv ! queue ! xvimagesink