hi_mpi_png_get_image_info

The Atlas 200/300/500 Inference Product does not support this API.

The Atlas Training Series Product does not support this API.

Description

Obtains the width, height, and source format of the input PNG image, the width stride and height stride of the output image, as well as the required buffer size based on the input stream.

Restrictions

This API is provided to calculate the size of the buffer occupied by the decoded output image. Currently, only PNG images can be parsed. The obtained widthStride and heightStride must be rounded up to the nearest multiples of 128 and 16, respectively.

Prototype

hi_s32 hi_mpi_png_get_image_info(const hi_img_stream *png_stream, hi_img_info *img_info)

Parameters

Parameter	Input/Output	Description
png_stream	Input	Pointer to the input stream information.
img_info	Output	Pointer to the image information.

Returns

0: success
Other values: failure. For details, see PNGD Return Codes.

Parent topic: PNGD