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authorFabio Estevam <festevam@gmail.com>2020-04-09 18:29:45 +0200
committerMauro Carvalho Chehab <mchehab+huawei@kernel.org>2020-04-21 13:30:32 +0200
commitd00c9761afe7808ed742741c95bd536e0a648676 (patch)
tree2e38b1dd46a26dbcf20a60fc6aed22515a9e7431 /Documentation/admin-guide/media/imx.rst
parent8a4676d6e627ed3c7a48c827e23f71e3e91dd3dd (diff)
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 <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>
Diffstat (limited to 'Documentation/admin-guide/media/imx.rst')
-rw-r--r--Documentation/admin-guide/media/imx.rst45
1 files changed, 45 insertions, 0 deletions
diff --git a/Documentation/admin-guide/media/imx.rst b/Documentation/admin-guide/media/imx.rst
index 64f5b550d0e1..b8fa70f854fd 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
------------