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media: imx.rst: Provide streaming examples for imx6q-sabresd

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Improve the documentation by providing examples on how to test camera
capture on imx6q-sabresd via v4l2-ctl and Gstreamer.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Steve Longerbeam<slongerbeam@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Fabio Estevam 2020-04-09 18:29:45 +02:00 committed by Mauro Carvalho Chehab
parent 8a4676d6e6
commit d00c9761af
1 changed files with 45 additions and 0 deletions
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Documentation/admin-guide/media/imx.rst
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@ -609,6 +609,28 @@ Streaming can then begin on "ipu1_csi0 capture" node. The v4l2-ctl
tool can be used to select any supported pixelformat on the capture tool can be used to select any supported pixelformat on the capture
device node. device node.
To determine what is the /dev/video node correspondent to
"ipu1_csi0 capture":
.. code-block:: none
media-ctl -e "ipu1_csi0 capture"
/dev/video0
/dev/video0 is the streaming element in this case.
Starting the streaming via v4l2-ctl:
.. code-block:: none
v4l2-ctl --stream-mmap -d /dev/video0
Starting the streaming via Gstreamer and sending the content to the display:
.. code-block:: none
gst-launch-1.0 v4l2src device=/dev/video0 ! kmssink
The following example configures a direct conversion pipeline to capture The following example configures a direct conversion pipeline to capture
from the OV5640, transmitting on MIPI CSI-2 virtual channel 0. It also from the OV5640, transmitting on MIPI CSI-2 virtual channel 0. It also
shows colorspace conversion and scaling at IC output. shows colorspace conversion and scaling at IC output.
@ -634,6 +656,29 @@ shows colorspace conversion and scaling at IC output.
Streaming can then begin on "ipu1_ic_prpenc capture" node. Streaming can then begin on "ipu1_ic_prpenc capture" node.
To determine what is the /dev/video node correspondent to
"ipu1_ic_prpenc capture":
.. code-block:: none
media-ctl -e "ipu1_ic_prpenc capture"
/dev/video1
/dev/video1 is the streaming element in this case.
Starting the streaming via v4l2-ctl:
.. code-block:: none
v4l2-ctl --stream-mmap -d /dev/video1
Starting the streaming via Gstreamer and sending the content to the display:
.. code-block:: none
gst-launch-1.0 v4l2src device=/dev/video1 ! kmssink
Known Issues Known Issues
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