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标题: 通过opencv是否可以调取1126的摄像头 [打印本页]

作者: yaqi825 时间: 2021-9-28 10:47
标题: 通过opencv是否可以调取1126的摄像头
通过opencv官方提供的opencv_python-4.0.1.24-cp37-cp37m-linux_armv7l.whl是否可以调取1126D的摄像头的mipi摄像头，cv2.VideoCapture(0)返回空，很奇怪，是这个cv2不支持v4l2的框架，怎么才能读上摄像头的图像数据？

作者: jefferyzhang 时间: 2021-9-28 12:16
要自己写代码的，怎么可能opencv能直接用，那3A控制、对焦难道cv还能自动处理了不成？
你想通过cv来获取，就要自己改cv代码，把rk的mipi摄像头控制写进去

作者: yaqi825 时间: 2021-9-28 12:50

jefferyzhang 发表于 2021-9-28 12:16
要自己写代码的，怎么可能opencv能直接用，那3A控制、对焦难道cv还能自动处理了不成？
你想通过cv来获取， ...

还有个问题，我按照 TB-RV1126Ds开发板rknn教程来一步步来，最后到
7 测试demo：
python demo：
python3 /vendor/etc/model/test.py

C demo:
run_rv1109_rv1126.sh

执行这两个后得到的数据是：

toybrick@debian10:/vendor/etc/model$ python3 /vendor/etc/model/test.py
--> list devices:
*************************
None devices connected.
*************************
done
--> query support target platform
**************************************************
Target platforms filled in RKNN model:       ['RV1109']
Target platforms supported by this RKNN model: ['RV1109', 'RK1109', 'RV1126', 'RK1126']
**************************************************
done
--> Load RKNN model
done
--> Init runtime environment
librknn_runtime version 1.7.0 (0bef7b3 build: 2021-08-18 19:55:01 base: 1131)
[    1] Failed to open device: No such file or directory, Try again...
[    2] Failed to open device: No such file or directory, Try again...
[    3] Failed to open device: No such file or directory, Try again...
[    4] Failed to open device: No such file or directory, Try again...
[    5] _OpenDevice(1091): FATAL: Failed to open device, errno=No such file or directory.
toybrick@debian10:/vendor/etc/model$ run_rv1109_rv1126.sh
librknn_runtime version 1.7.0 (0bef7b3 build: 2021-08-18 19:55:01 base: 1131)
[    1] Failed to open device: No such file or directory, Try again...
[    2] Failed to open device: No such file or directory, Try again...
[    3] Failed to open device: No such file or directory, Try again...
[    4] Failed to open device: No such file or directory, Try again...
[    5] _OpenDevice(1091): FATAL: Failed to open device, errno=No such file or directory.
toybrick@debian10:/vendor/etc/model$ sudo run_rv1109_rv1126.sh
librknn_runtime version 1.7.0 (0bef7b3 build: 2021-08-18 19:55:01 base: 1131)
[    1] Failed to open device: No such file or directory, Try again...
[    2] Failed to open device: No such file or directory, Try again...
[    3] Failed to open device: No such file or directory, Try again...
[    4] Failed to open device: No such file or directory, Try again...
[    5] _OpenDevice(1091): FATAL: Failed to open device, errno=No such file or directory.

这个是怎么回事？是我什么地方配置不对？为此我专门刷了一下最近的固件，还是这样，该从那里解决这个问题

作者: ws666 时间: 2021-9-28 18:03

jefferyzhang 发表于 2021-9-28 12:16
要自己写代码的，怎么可能opencv能直接用，那3A控制、对焦难道cv还能自动处理了不成？
你想通过cv来获取， ...

元老你好，我想问一下，用c写的rkmedia_vi_vo_test.c代码，是要用SDK/buildroot目录下的工具编译吗？有没有Ｃ编译的教程啊，我想在ubuntu上编译，在rv1126上跑，谢谢。

作者: jefferyzhang 时间: 2021-9-29 10:30

yaqi825 发表于 2021-9-28 12:50
还有个问题，我按照 TB-RV1126Ds开发板rknn教程来一步步来，最后到
7 测试demo：
python demo：

target检查下，看下文档，本机运行target跟被动模式写法是不一样的

作者: jefferyzhang 时间: 2021-9-29 10:31

ws666 发表于 2021-9-28 18:03
元老你好，我想问一下，用c写的rkmedia_vi_vo_test.c代码，是要用SDK/buildroot目录下的工具编译吗？有没 ...

不会折腾交叉编译环境你就直接在1126上编译啊，我们Toybrick提供的就是debian10系统，直接就可以当pc用

作者: 傲氣雄鷹 时间: 2021-11-2 17:25

ws666 发表于 2021-9-28 18:03
元老你好，我想问一下，用c写的rkmedia_vi_vo_test.c代码，是要用SDK/buildroot目录下的工具编译吗？有没 ...

要用sdk 自帶的編譯器

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