From d00c9761afe7808ed742741c95bd536e0a648676 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Thu, 9 Apr 2020 18:29:45 +0200 Subject: [PATCH] media: imx.rst: Provide streaming examples for imx6q-sabresd 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 Reviewed-by: Steve Longerbeam Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- Documentation/admin-guide/media/imx.rst | 45 +++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) diff --git a/Documentation/admin-guide/media/imx.rst b/Documentation/admin-guide/media/imx.rst index 64f5b55..b8fa70f 100644 --- a/Documentation/admin-guide/media/imx.rst +++ b/Documentation/admin-guide/media/imx.rst @@ -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 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 from the OV5640, transmitting on MIPI CSI-2 virtual channel 0. It also 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. +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 ------------ -- 2.7.4