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--- products:sbc:vim4:add-ons:new-vim4-mipi-camera [2023/09/10 01:41]
hyphop [Enable Overlays]
+++ products:sbc:vim4:add-ons:new-vim4-mipi-camera [2024/05/18 03:13] (current)
nick [Record video via gstreamer]
@@ Line 3: / Line 3: @@
 {{indexmenu_n>52}}
-====== New VIM4 MIPI Camera Usage ======
+====== New VIM4 MIPI camera usage ======
+<WRAP important >
+There are two [[../configurations/identify-version#vim4-versions-differences-reference-table| different VIM4 versions ]]: VIM4 and New VIM4. Both versions have different [[/tag/isp|ISP IP core]], so the usage of MIPI camera is also different.
+</WRAP>
 ===== Linux =====
-==== Upgrade System ====
+==== Upgrade system ====
 Please follow the [[products:sbc:vim4:configurations:upgrade-system|documentation ]]to upgrade your system to latest version.
-==== Enable Overlays ====
+==== Enable overlays ====
-If you want to use the MIPI camera, you need to enable it in [[products:sbc:vim4:configurations:device-tree-overlay|overlays]].
+If you want to use the MIPI camera, you need to enable it in [[products:sbc:vim4:configurations:device-tree-overlay|overlays]].\\
+[[gh>khadas/khadas-linux-kernel-dt-overlays/tree/main/overlays/vim4/5.4]]
   * Add ''vim4n-os08a10'' to ''fdt_overlays'' in ''/boot/dtb/amlogic/kvim4.dtb.overlay.env'' to enable ''OS08A10''
@@ Line 26: / Line 31: @@
 ```
-Enable ''IMX415'': [[gh>/khadas/khadas-linux-kernel-dt-overlays/blob/main/overlays/vim4/5.4/vim4n-os08a10.dts]]
+Enable ''IMX415'': [[gh>/khadas/khadas-linux-kernel-dt-overlays/blob/main/overlays/vim4/5.4/vim4n-imx415.dts]]
 ```
 $ cat /boot/dtb/amlogic/kvim4.dtb.overlay.env
@@ Line 34: / Line 39: @@
 And then reboot to take effect.
-==== Video Node ====
+==== Video node ====
 The video node is ''/dev/media0''.
-==== Get Frames via Mediactl API ====
+==== Record video via gstreamer ====
-Test source code: [[gh>numbqq/v4l2_media_test]]
+<WRAP important >
+Only for 5.15 kernel.
+</WRAP>
+Record video and perform ''H264'' encoding:
+```shell
+gst-launch-1.0 -e v4l2src device=/dev/media0  io-mode=mmap num-buffers=300 ! video/x-raw,format=NV21,width=1920,height=1080,framerate=30/1 ! amlvenc bitrate=8000 ! h264parse ! qtmux ! filesink location=test-h264.mp4
+```
+Record video and perform ''H265'' encoding:
+```shell
+gst-launch-1.0 -e v4l2src device=/dev/media0  io-mode=mmap num-buffers=300 ! video/x-raw,format=NV21,width=1920,height=1080,framerate=30/1 ! amlvenc bitrate=8000 ! h265parse ! qtmux ! filesink location=test-h265.mp4
+```
+==== Get Frames via Mediactl API ====
-Download and build the test source code:
+Download and build the test source code: [[gh>numbqq/v4l2_media_test]]
 <tabbox 5.4 kernel>
@@ Line 78: / Line 103: @@
 Preview the file:
-```shell
+<WRAP important >
-$ ffplay -f rawvideo -pixel_format nv21 -video_size 3840x2160 /tmp/dst_mif_0.yuv
+It doesn't work on VIM4, you need to copy the file and execute the command on your host PC.
+</WRAP>
+```shell
+$ ffplay -f rawvideo -pixel_format nv12 -video_size 3840x2160 /tmp/dst_mif_0.yuv
 ```
 ===== Android =====
 WIP:

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