# The function/feature is not implemented (The called functionality is disabled for current build or platform) in throw\_no\_cuda

**URL:** <https://forum.opencv.org/t/the-function-feature-is-not-implemented-the-called-functionality-is-disabled-for-current-build-or-platform-in-throw-no-cuda/20279>\
**Category:** Uncategorized\
**Tags:** build, cuda, videoio\
**Created:** [February 19, 2025, 1:12pm UTC](https://forum.opencv.org/t/the-function-feature-is-not-implemented-the-called-functionality-is-disabled-for-current-build-or-platform-in-throw-no-cuda/20279 "2025-02-19T13:12:11Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![ask](https://avatars.discourse-cdn.com/v4/letter/a/df705f/32.png) [@ask](https://forum.opencv.org/u/ask)\
**Post date:** [February 19, 2025, 1:12pm UTC](https://forum.opencv.org/t/the-function-feature-is-not-implemented-the-called-functionality-is-disabled-for-current-build-or-platform-in-throw-no-cuda/20279/1 "2025-02-19T13:12:11Z")

</div>

Hi Technical Team,  
Environment used for my task:

- Windows 10
- CUDA toolkits: 12.8
- GPU Name : NVIDIA Geforce RTX 3070
- OpenCV 4.10.0
- CMake version:3.18.6

I have build OpenCV with CUDA support using CMake GUI for C++.

When I build OpenCV with CUDA support in CMake, the output is as follows:

```auto
NVIDIA CUDA: YES (ver 12.8, CUFFT CUBLAS NVCUVID NVCUVENC)

```

But when I write my C++ project in Visual Studio 2019, the output I get from calling the `getBuildInformation` function in the main function is the following situation:

```auto
NVIDIA CUDA: YES (ver 12.8, CUFFT CUBLAS FAST_MATH)

```

And in the main function, I wrote the following code:

```cpp
cv::Ptr<cv::cudacodec::VideoReader> reader = cv::cudacodec::createVideoReader("video.mp4");  
if (!reader) {  
    std::cerr << "无法创建 VideoReader" << std::endl;  
    return -1;  
} 

```

When debugging, it reports an error. The specific error messages are as follows:

`OpenCV(4.10.0) Error: The function/feature is not implemented (The called functionality is disabled for current build or platform) in throw_no_cuda, file E:\OpenCV\opencv-4.10.0\opencv\sources\modules\core\include\opencv2/core/private.cuda.hpp, line 112`

May I ask what causes this?

---

<div class="post-metadata">

**Author:** ![cudawarped](https://avatars.discourse-cdn.com/v4/letter/c/9dc877/32.png) [@cudawarped](https://forum.opencv.org/u/cudawarped)\
**Post date:** [February 19, 2025, 1:52pm UTC](https://forum.opencv.org/t/the-function-feature-is-not-implemented-the-called-functionality-is-disabled-for-current-build-or-platform-in-throw-no-cuda/20279/2 "2025-02-19T13:52:18Z")

</div>

> [@ask](#):
>
> May I ask what causes this?

Either you have two builds one with and one without `NVCUVID` and `NVCUVENC` and you are linking to the one without or you didn’t build with these options and only configured CMake with them.

Either way the output from `getBuildInformation` confirms that you are linking against a version of OpenCV that was not built against the `NVCUVID` and `NVCUVENC` libraries.