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products:sbc:vim4:add-ons:os08a10-mipi-camera [2023/06/25 22:36]
nick 		products:sbc:vim4:add-ons:os08a10-mipi-camera [2023/09/10 01:10] (current)
hyphop
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 +~~tag> VIM4 MIPI Camera ISP IP~~
 +
 +{{indexmenu_n>30}}
 +
 ====== VIM4 OS08A10 MIPI Camera ====== ====== VIM4 OS08A10 MIPI Camera ======
  
 ===== Introduction ===== ===== Introduction =====
  
-This document mainly introduces [[https://www.khadas.com/product-page/os08a10-8mp-camera | OS08A10 MIPI Camera]]. The document is divided into two parts,The first part of the document describes how to connect. The second part introduces How to record video via Gstreamer and test your camera under Ubuntu.+This document mainly introduces the usage of [[https://www.khadas.com/product-page/os08a10-8mp-camera | OS08A10 MIPI Camera]]. 
  
 ===== Hardware Connection ===== ===== Hardware Connection =====
Line 28: Line 32:
 Please follow the [[products:sbc:vim4:configurations:upgrade-system|documentation ]]to upgrade your system to latest version. Please follow the [[products:sbc:vim4:configurations:upgrade-system|documentation ]]to upgrade your system to latest version.
  
 +===== Camera Usage =====
  
-===== VIM4 MIPI Camera Usage ===== +  * [[products:sbc:vim4:add-ons:vim4-mipi-camera|]] 
- +  * [[products:sbc:vim4:add-ons:new-vim4-mipi-camera|]]
-==== Video Node ==== +
- +
-The video node for MIPI camera is ''/dev/video50''. +
- +
-==== Record Video via Gstreamer ==== +
- +
- +
-=== Install Gstreamer Encoder Plugin === +
-```shell +
-sudo apt update +
-sudo apt install gstreamer-aml +
-``` +
- +
-=== Record Video === +
-```shell +
-gst-launch-1.0 v4l2src device=/dev/video50 io-mode=mmap num-buffers=300 ! video/x-raw,format=NV12 ! amlvenc bitrate=8000 ! h264parse ! qtmux ! filesink location=test_50.mp4 +
-``` +
- +
- +
-==== Record Video with OpenCV ==== +
- +
-=== Install OpenCV === +
- +
-```shell +
-sudo apt update +
-sudo apt install libopencv-dev python3-opencv +
-``` +
- +
-=== C++ === +
- +
- +
-== Get Frame via V4l2 == +
- +
-```c++ mipi-camera.cpp +
-#include <opencv2/highgui/highgui.hpp> +
-#include <opencv2/imgproc/imgproc.hpp> +
-#include <opencv2/core/core.hpp> +
-#include <iostream> +
-#include <string> +
-using +
-namespace  cv; +
- +
-using +
-namespace  std; +
- +
-int main(int argc, char** argv) +
-{ +
-    int count=100; +
-    string str = argv[1]; +
-    string res=str.substr(10); +
-    VideoCapture capture(stoi(res), CAP_V4L2); +
-    capture.set(CAP_PROP_FOURCC, VideoWriter::fourcc('U','Y','V','Y')); +
-    capture.set(CAP_PROP_FRAME_WIDTH, 1920); +
-    capture.set(CAP_PROP_FRAME_HEIGHT, 1080); +
-    while (count) +
-    { +
-        Mat frame; +
-        capture >> frame; +
- +
-        if (frame.empty()) { +
-            break; +
-        } +
-        int h = frame.rows; +
-        int w = frame.cols; +
-        const char *name = "video"; +
-        namedWindow(name, 0); +
-        imshow(name, frame); +
-        waitKey(30); +
-        count--; +
-    } +
-    return 0; +
-} +
- +
-``` +
- +
- +
-== Get Frame via Gstreamer == +
- +
-```c++ mipi-camera.cpp +
-#include <opencv2/highgui/highgui.hpp> +
-#include <opencv2/imgproc/imgproc.hpp> +
-#include <opencv2/core/core.hpp> +
-#include <iostream> +
-#include <string> +
-using +
-namespace  cv; +
- +
-using +
-namespace  std; +
- +
-int main(int argc, char** argv) +
-{ +
-    int count=100; +
-    string str = argv[1]; +
-    string gstformat = "NV12"; +
-    string gstfile = "v4l2src device=" + str + " ! video/x-raw,format=" + gstformat + ",width=1920,height=1080,framerate=30/1 ! videoconvert ! appsink"; +
-    VideoCapture capture(gstfile); +
- +
-    while (count) +
-    { +
-        Mat frame; +
-        capture >> frame; +
- +
-        if (frame.empty()) { +
-            break; +
-        } +
-        int h = frame.rows; +
-        int w = frame.cols; +
-        const char *name = "video"; +
-        namedWindow(name, 0); +
-        imshow(name, frame); +
-        waitKey(30); +
-        count--; +
-    } +
-    return 0; +
-} +
- +
-``` +
- +
-Compile: +
- +
-```shell +
-gcc -o mipi mipi-camera.cpp -lopencv_imgproc -lopencv_core -lopencv_videoio -lopencv_imgcodecs -lopencv_highgui -std=c++11 -std=gnu++11 -Wall -std=c++11 -lstdc++ -I/usr/include/opencv4 +
-``` +
- +
-Test: +
- +
-```shell +
-./mipi /dev/video50 +
-``` +
- +
-===== New VIM4 MIPI Camera Usage ===== +
- +
-==== Enable Overlays ==== +
- +
-If you want to use the OS08A10 MIPI camera, you need to enable it in [[products:sbc:vim4:configurations:device-tree-overlay|overlays]], you need to add ''vim4n-os08a10'' to ''fdt_overlays'' in ''/boot/dtb/amlogic/kvim4.dtb.overlay.env''. +
- +
-``` +
-$ cat /boot/dtb/amlogic/kvim4.dtb.overlay.env  +
-fdt_overlays=vim4n-os08a10 +
-``` +
- +
-And then reboot to take effect. +
- +
-==== Video Node ==== +
- +
-The video node is ''/dev/media0''. +
- +
-==== Get Frames via Mediactl API ==== +
- +
-You can get the test source code here: https://github.com/numbqq/v4l2_media_test +
- +
-Download and build the test source code: +
- +
-<tabbox 5.4 kernel> +
- +
- +
-```shell +
-$ git clone https://github.com/numbqq/v4l2_media_test +
-$ cd v4l2_media_test +
-$ git checkout e0482794337c01935593a91b621f9c42123cf175 +
-$ g++ v4l2_test_raw.cpp -o v4l2_test_raw  -Wall -Wno-int-to-pointer-cast -Wno-pointer-to-int-cast -pthread -fPIE -lispaml -ldl -lmediaAPI -ltuning -lm -fPIC -D_FORTIFY_SOURCE=2 -O3 +
-$ ls v4l2_test_raw +
-v4l2_test_raw +
-``` +
- +
-<tabbox 5.15 kernel> +
- +
-```shell +
-$ git clone https://github.com/numbqq/v4l2_media_test +
-$ cd v4l2_media_test +
-$ g++ v4l2_test_raw.cpp -o v4l2_test_raw  -Wall -Wno-int-to-pointer-cast -Wno-pointer-to-int-cast -pthread -fPIE -lispaml -ldl -lmediaAPI -ltuning -llens -lm -fPIC -D_FORTIFY_SOURCE=2 -O3 +
-$ ls v4l2_test_raw +
-v4l2_test_raw +
-``` +
- +
-</tabbox> +
- +
-Test: +
- +
-```shell +
-$ ./v4l2_test_raw -p 0 -n 10 -m /dev/media0 +
-``` +
- +
-It will capture 10 frames to file ''/tmp/dst_mif_0.yuv''. +
- +
-Preview the file: +
- +
-```shell +
-$ ffplay -f rawvideo -pixel_format nv21 -video_size 3840x2160 /tmp/dst_mif_0.yuv +
- +
-```+
  
 ===== See Also ===== ===== See Also =====
Last modified: 2023/06/25 22:36 by nick

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