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--- products:sbc:vim4:add-ons:new-vim4-mipi-camera [2023/09/24 21:26]
nick
+++ products:sbc:vim4:add-ons:new-vim4-mipi-camera [2024/09/24 03:46] (current)
nick [Preview video on ubuntu desktop]
@@ Line 31: / 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 42: / Line 42: @@
 The video node is ''/dev/media0''.
+==== Record video via gstreamer ====
+<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 ====
@@ Line 87: / Line 109: @@
 ```shell
-$ ffplay -f rawvideo -pixel_format nv21 -video_size 3840x2160 /tmp/dst_mif_0.yuv
+$ ffplay -f rawvideo -pixel_format nv12 -video_size 3840x2160 /tmp/dst_mif_0.yuv
 ```
-==== Record video via gstreamer ====
+==== Preview video on ubuntu desktop ====
-Record video and perform H264 encoding:
+<tabbox Ubuntu 24.04>
+You can use gstreamer ''waylandsink'' to preview the video on Ubuntu Wayland desktop:
 ```shell
-gst-launch-1.0 v4l2src device=/dev/media0  io-mode=mmap num-buffers=300 ! video/x-raw,format=NV21 ! amlvenc bitrate=8000 ! h264parse ! qtmux ! filesink location=test-h264.mp4
+gst-launch-1.0 v4l2src device=/dev/media0 io-mode=mmap  ! video/x-raw,format=NV12,width=3840,height=2160,framerate=30/1 ! videoconvert ! waylandsink
+```
+You can use the command below to check display fps:
+```shell
+gst-launch-1.0 -v v4l2src device=/dev/media0 io-mode=mmap ! video/x-raw,format=NV12,width=3840,height=2160,framerate=30/1 ! fpsdisplaysink video-sink=waylandsink sync=false text-overlay=false
 ```
-Record video and perform H265 encoding:
+<tabbox Ubuntu 22.04>
+You can use gstreamer ''clutterautovideosink'' to preview the video on Ubuntu Wayland desktop:
 ```shell
-gst-launch-1.0 v4l2src device=/dev/media0  io-mode=mmap num-buffers=300 ! video/x-raw,format=NV21 ! amlvenc bitrate=8000 ! h265parse ! qtmux ! filesink location=test-h265.mp4
+gst-launch-1.0 v4l2src device=/dev/media0 io-mode=mmap ! video/x-raw,format=NV12,width=3840,height=2160,framerate=30/1 ! clutterautovideosink
+```
+You can use the command below to check display fps:
+```shell
+gst-launch-1.0 -v v4l2src device=/dev/media0 io-mode=mmap ! video/x-raw,format=NV12,width=3840,height=2160,framerate=30/1 ! fpsdisplaysink video-sink=clutterautovideosink sync=false text-overlay=true
 ```
+You press ''Alt + F7'' and then move mouse to move the windown.
+</tabbox>

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