xfMat2AXIvideo - 2023.2 English

Vitis Libraries

Release Date
2023.2 English

The Mat2AXI video function receives an xf::cv::Mat representation of a sequence of images and encodes it correctly using the AXI4 Streaming video protocol.

API Syntax

template<int W, int T, int ROWS, int COLS,int NPC,int XFCVDEPTH = _XFCVDEPTH_DEFAULT>
int xfMat2AXIvideo(xf::cv::Mat<T,ROWS, COLS,NPC, XFCVDEPTH>& img,hls::stream<ap_axiu<W,1,1,1> >& AXI_video_strm)

Parameter Descriptions

The following table describes the template and the function parameters.

Table 209 Table. xfMat2AXIvideo Function Parameter Description
Parameter Description
W Data width of AXI4-Stream. Recommended value is pixel depth.
T Pixel type of the image. 1 channel (XF_8UC1). Data width of pixel must be no greater than W.
ROWS Maximum height of input image.
COLS Maximum width of input image.
NPC Number of pixels to be processed per cycle. Possible options are XF_NPPC1 and XF_NPPC8 for 1-pixel and 8-pixel operations respectively.
XFCVDEPTH Depth of the Output image.
AXI_video_strm HLS stream of ap_axiu (axi protocol) type.
img Output image.

This function returns the value 0.

Note: The NPC values across all the functions in a data flow must follow the same value. If there is mismatch it throws a compilation error in HLS.