DvppPngDecode

Function Usage

Decodes PNG formats. Before calling this API, call Init() or Init(MxbaseDvppChannelMode dvppChannelMode) to initialize this function.

Prototype

APP_ERROR DvppPngDecode(  
    DvppDataInfo& inputDataInfo,  
    DvppDataInfo& outputDataInfo  
);

APP_ERROR DvppPngDecode(
    const std::string& inputPicPath, 
    DvppDataInfo& outputDataInfo
);

Parameter Description

Parameter	Input/Output	Description
inputDataInfo	Input	Decoded data
inputPicPath	Input	Path of the image to be decoded
outputDataInfo	Output	Output data after decoding The value range of outputDataInfo.dataSize is [1, 1073741824].

Parameter

Input/Output

Description

inputDataInfo

Input

Decoded data

inputPicPath

Input

Path of the image to be decoded

outputDataInfo

Output

Output data after decoding

The value range of outputDataInfo.dataSize is [1, 1073741824].

Return Parameter Description

Data Structure	Description
APP_ERROR	Error code returned during program execution. For details, see the MxBase/ErrorCode/ErrorCode.h file.

Parent topic: DvppWrapper