AOM-DB3500 Video In(MIPI CSI0/CSI1)——Camera - Revision history

Xingxing.li at 00:48, 5 January 2026

2026-01-05T00:48:42Z

Xingxing.li: /* Camera */

2026-01-05T00:45:22Z

‎Camera

Xingxing.li at 08:12, 4 January 2026

2026-01-04T08:12:20Z

Xingxing.li: Created page with " === '''Camera''' === AOM-3821 has two MIPI-CSI camera ports. {| border="1" cellpadding="1" cellspacing="1" style="width: 500px;" |- | colspan="4" | '''MIPI-CSI camera ports..."

2026-01-04T07:58:41Z

Created page with " === '''Camera''' === AOM-3821 has two MIPI-CSI camera ports. {| border="1" cellpadding="1" cellspacing="1" style="width: 500px;" |- | colspan="4" | '''MIPI-CSI camera ports..."

New page

=== '''Camera''' ===

AOM-3821 has two MIPI-CSI camera ports.

{| border="1" cellpadding="1" cellspacing="1" style="width: 500px;"
|-
| colspan="4" | '''MIPI-CSI camera ports'''
|-
| '''Camera Number'''
| '''Video Port'''
| '''Note'''
| '''AOM-DB3500 Number'''
|-
| Camera1
| 22
| （I2C 4）4 Lane
| CSI0_FPC
|-
| Camera2
| 31
| （I2C 8）4 Lane
| CSI1_FPC
|}

=== '''View Resolution''' ===

Taking port 22 as an example, you can enter the following instructions to view information such as the resolution, pixel format, Field, Number of planes, Flags, Colorspace, Transfer Function, YCbCr/HSV Encoding, Quantization, Bytes per Line and<br/> Size Image.
<pre># v4l2-ctl -d /dev/video22 --get-fmt-video
Format Video Capture Multiplanar:
 Width/Height : 3840/2160
 Pixel Format : 'NV12' (Y/UV 4:2:0)
 Field : None
 Number of planes : 1
 Flags :
 Colorspace : sRGB
 Transfer Function : Rec. 709
 YCbCr/HSV Encoding: Rec. 709
 Quantization : Full Range
 Plane 0 :
 Bytes per Line : 3840
 Size Image : 12441600 </pre>

=== '''Set Resolution''' ===

Taking port 22 as an example, you can enter the following commands to set the resolution to 1920*1080.
<pre># v4l2-ctl -d /dev/video22 --set-fmt-video=width=1920,height=1080,\pixel�format='NV12'</pre>

=== '''Preview Camera''' ===

Taking port 22 as an example, you can set the preview of the camera video by using the following command.
<pre># export DISPLAY=:0.0
# export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib/aarch64-linux-gnu/
gstreamer-1.0
#gst-launch-1.0 v4l2src device=/dev/video22 \! video/x-raw,for�mat=NV12,width=1920,height=1080,framerate=30/1 \! xvimagesink</pre>

=== '''Camera Photography''' ===

Taking port 22 as an example, the following command can be used to take a camera photo, and the save address is picture.jpg in the current directory.
<pre># gst-launch-1.0 v4l2src device=/dev/video22 num-buffers=1 \
! video/x-raw,format=NV12,width=1920,height=1080 ! jpegenc ! filesink loca�tion= picture.jpg</pre>

=== '''Camera Screen Recording''' ===

Taking port 22 as an example, the following command can be used to record videos with the camera, and the save address is video.mp4 in the current directory.
<pre># gst-launch-1.0 -e \
v4l2src device=/dev/video22 \
! video/x-raw,format=NV12,width=1920,height=1080,framerate=25/1 \
! videoconvert \
! x264enc bitrate=5000 speed-preset=ultrafast tune=zerolatency \
! h264parse \
! mp4mux \
! filesink location= video.mp4</pre>

@@ Line 1: / Line 1: @@
 === '''Camera''' ===
@@ Line 26: / Line 25: @@
 | CSI1_FPC
 |}
 === '''View Resolution''' ===

@@ Line 29: / Line 29: @@
 <pre># v4l2-ctl -d /dev/video22 --get-fmt-video
 Format Video Capture Multiplanar:
-&nbsp;Width/Height : 3840/2160
+&nbsp;Width/Height&nbsp;: 3840/2160
-&nbsp;Pixel Format : 'NV12' (Y/UV 4:2:0)
+&nbsp;Pixel Format&nbsp;: 'NV12' (Y/UV 4:2:0)
-&nbsp;Field : None
+&nbsp;Field&nbsp;: None
-&nbsp;Number of planes : 1
+&nbsp;Number of planes&nbsp;: 1
-&nbsp;Flags :
+&nbsp;Flags&nbsp;:
-&nbsp;Colorspace : sRGB
+&nbsp;Colorspace&nbsp;: sRGB
-&nbsp;Transfer Function : Rec. 709
+&nbsp;Transfer Function&nbsp;: Rec. 709
 &nbsp;YCbCr/HSV Encoding: Rec. 709
-&nbsp;Quantization : Full Range
+&nbsp;Quantization&nbsp;: Full Range
-&nbsp;Plane 0 :
+&nbsp;Plane 0&nbsp;:
-&nbsp;Bytes per Line : 3840
+&nbsp;Bytes per Line&nbsp;: 3840
-&nbsp;Size Image : 12441600&nbsp;</pre>
+&nbsp;Size Image&nbsp;: 12441600&nbsp;</pre>
 === '''Set Resolution''' ===
 Taking port 22 as an example, you can enter the following commands to set the resolution to 1920*1080.
-<pre># v4l2-ctl -d /dev/video22 --set-fmt-video=width=1920,height=1080,\pixel�format='NV12'</pre>
+<pre># v4l2-ctl -d /dev/video22 --set-fmt-video=width=1920,height=1080,\pixelformat='NV12'</pre>
 === '''Preview Camera''' ===
@@ Line 53: / Line 53: @@
 # export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib/aarch64-linux-gnu/
 gstreamer-1.0
-#gst-launch-1.0 v4l2src device=/dev/video22 \! video/x-raw,for�mat=NV12,width=1920,height=1080,framerate=30/1 \! xvimagesink</pre>
+#gst-launch-1.0 v4l2src device=/dev/video22 \! video/x-raw,format=NV12,width=1920,height=1080,framerate=30/1 \! xvimagesink</pre>
 === '''Camera Photography''' ===
@@ Line 59: / Line 59: @@
 Taking port 22 as an example, the following command can be used to take a camera&nbsp;photo, and the save address is picture.jpg in the current directory.
 <pre># gst-launch-1.0 v4l2src device=/dev/video22 num-buffers=1 \
-! video/x-raw,format=NV12,width=1920,height=1080 ! jpegenc ! filesink loca�tion= picture.jpg</pre>
+! video/x-raw,format=NV12,width=1920,height=1080&nbsp;! jpegenc&nbsp;! filesink location= picture.jpg</pre>
 === '''Camera Screen Recording''' ===