Hello All,
We have a delay in capturing when we use YUV mode in CSI Video Port!!
We dont latency (NVMM) with Raw10-Bayer!!
The description is given in this link

Based on the TX2 TRM,Page 2789

ISP Buffer can set RGB888,
and based
NVIDIA Jetson Linux Driver Package Software Features
Camera Software Development Solution !!

nvarguscamerasrc—NVIDIA camera GStreamer plugin that provides options to control ISP properties using the ARGUS API.

So,we set video port to RGB888!!
We want capture frame As NVMM and RGB24bit

We made the necessary changes in CSI Video Driver and
Video port is ok ,no problem!!

` nvidia@nvidia-desktop:~$ v4l2-ctl --list-formats-ext

        Index       : 0
        Type        : Video Capture
        Pixel Format: 'AR24'
        Name        : 32-bit BGRA 8-8-8-8
                Size: Discrete 1920x1080
                        Interval: Discrete 0.033s (30.000 fps)


` nvidia@nvidia-desktop:~$ v4l2-ctl -V

Format Video Capture:
        Width/Height      : 1920/1080
        Pixel Format      : 'AR24'
        Field             : None
        Bytes per Line    : 7680
        Size Image        : 8294400
        Colorspace        : sRGB
        Transfer Function : Default (maps to sRGB)
        YCbCr/HSV Encoding: Default (maps to ITU-R 601)
        Quantization      : Default (maps to Full Range)


but when capture frame ,gst pipeline encounters an error!!

gst-launch-1.0 nvarguscamerasrc ! 'video/x-raw(memory:NVMM), width=1920, height=1080, format=BGRA , framerate=30/1' ! nvvidconv ! 'video/x-raw(memory:NVMM), width=1920, height=1080, format=I420, framerate=30/1' ! omxh264enc bitrate=14000000 ! 'video/x-h264, stream-format=(string)byte-stream' ! rtph264pay ! udpsink host= port=5000 sync=false

but using this pipeline, video stream is OK!!

gst-launch-1.0 v4l2src device="/dev/video0" ! "video/x-raw, format=BGRA, width=1920, height=1080, framerate=30/1" ! videoconvert ! omxh264enc bitrate=8000000 ! "video/x-h264, stream-format=(string)byte-stream" ! rtph264pay ! udpsink host= port=5000 sync=false

How should we capture the frame same bayer-RAW10 using nvarguscamerasrc As NVMM?

gst-launch-1.0 nvarguscamerasrc ! 'video/x-raw(memory:NVMM), width=(int)1920, height=(int)1080, format=(string)NV12, framerate=(fraction)30/1' ! omxh264enc control-rate=1 bitrate=14000000 ! 'video/x-h264, stream-format=(string)byte-stream' ! h264parse ! rtph264pay mtu=1400 ! udpsink host= port=5000 sync=false async=false

I don’t want to use v4lsrc, Because when converting video/x-raw buffer to video/x-raw(memory:NVMM) using nvdiconv ,it delays the frame,

What other formats can Argus accept in addition to Raw 10?

Please guide me!!

Sorry to tell current ISP software pipeline only support RAW data format.
You have to use vl42src for the RGB888.