Help Center/ Atlas 300 Application (Model 3000)/ DVPP API Reference/ Appendix/ Sample Usage of the DVPP Executor/ Usage of PNGD
Updated on 2022-03-13 GMT+08:00
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Usage of PNGD

./sample_dvpp_hlt_ddk --in_image_file dvpp_pngd_1920x1080_RGBA.png --out_image_file pngd_out_RGBAtoRGB_1.rgb --test_type 9  --transform 1
./sample_dvpp_hlt_ddk --in_image_file dvpp_pngd_1920x1080_RGBA.png --out_image_file pngd_out_RGBAtoRGB_2.rgb --test_type 10 --transform 1

In the first command (test_type 9), the DVPP allocates memory. In the second command (test_type 10), the user allocates memory. Both commands decode a PNG image into an RGB888 image.

  • Input picture:
    • An image whose width is 1920 pixels, height is 1080 pixels, and file name is dvpp_pngd_1920x1080_RGBA.png.
    • The input image is in the same directory as the executable file.
    • If --transform is set to 1, the RGBA PNG image is converted to the RGB888 format.
  • Output image:
    • Two 1920 x 1080 images. The file name of the first output image (test_type 9) is pngd_out_RGBAtoRGB_1.rgb, and the file name of the second output image (test_type 10) is pngd_out_RGBAtoRGB_2.rgb.
    • The output images are in the same directory as the executable file.
  • You can open the pngd_out_RGBAtoRGB_1.rgb and pngd_out_RGBAtoRGB_2.rgb files by using image display software to verify the correctness.