Segmentation Faul Error

  • Hello, the latest version of RKMPI does not support taking frames directly from VPSS, that is, RK_MPI_VPSS_GetChnFrame cannot be used, kernel 5.10.110 in the old version of the VPSS component is supported.
    We do not participate in maintenance RKMPI and there is no related source code, there is a need to take frames from VPSS can only use the old version of SDK
  • I see on the wiki that Luck Fox Pico can take frames up to 23fps. But when I run an example, it is just about 11fps. How can I improve FPS?
  • The main cause of frame rate loss is the use of OpenCV-Mobile for image format conversion, which is intended to make the code more flexible for secondary development. To improve the frame rate, there are two approaches:

    1 Use RKRGA to accelerate the image format conversion process.
    2 Avoid using OpenCV-Mobile and instead use OSD (On-Screen Display) methods to annotate the image. Although this approach is more complex than using OpenCV-Mobile, it is much more efficient and is also the method recommended by Rockchip. Relevant examples can be found in ${SDK}/media.

    The wiki uses an older version of the SDK and implements image format conversion through VPSS. Like the RKRGA library, VPSS also utilizes the 2D acceleration engine of the RV1106 for color format conversion.
  • Can you give document about how to install and how to use RKRGA library please
  • The document refers to the attachment, using a simple routine that I have written https://github.com/luckfox-eng29/luckfox_pico_rga
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  • Thank you so much!!