How to use decodeToFd transform NvBuffer* to opencv mat in jpegdecoder?

[896788224]

hi all.
how to use the decodeToFd transform NvBuffer* to opencv mat in jpegdecoder?

[DaneLLL]

Hi,
Please refer to

NVBuffer (FD) to opencv Mat

Hi, We don’t observe the issue by applying following patch to 13_multi_camera: diff --git a/multimedia_api/ll_samples/samples/13_multi_camera/main.cpp b/multimedia_api/ll_samples/samples/13_multi_camera/main.cpp index 49a9ab8..0613f0b 100644 --- a/multimedia_api/ll_samples/samples/13_multi_camera/main.cpp +++ b/multimedia_api/ll_samples/samples/13_multi_camera/main.cpp @@ -39,6 +39,8 @@ #include <stdio.h> #include <stdlib.h> +#include <opencv2/opencv.hpp> + using namespace Argus; using n…

You need to create NvBuffer in NvBufferColorFormat_ABGR32,NvBufferLayout_Pitch, and convert the decoded YUVs to this NvBuffer through NvBufferTransform(). And then call NvBufferMemMap() to get the CPU data pointer.

[896788224]

thanks,I will try.

[896788224]

hi, how to use decodeToFd transform greyscale image to opencv mat in jpegdecoder?