VdecConfig

Function

Defines video stream decoding.

Structure Definition

struct VdecConfig {
    uint32_t width = 0;
    uint32_t height = 0;
    MxbaseStreamFormat inputVideoFormat = MXBASE_STREAM_FORMAT_H264_MAIN_LEVEL;
    MxbasePixelFormat outputImageFormat = MXBASE_PIXEL_FORMAT_YUV_SEMIPLANAR_420;
    uint32_t channelId = 0;
    uint32_t deviceId  = 0;
    pthread_t threadId  = 0; 
    DecodeCallBackFunction callbackFunc = nullptr; 
    uint32_t outMode = 0;
    uint32_t videoChannel = 0;
    uint32_t skipInterval = 0;
    void* userData = nullptr;
};

Parameter Description

Parameter	Input/Output	Description
width	Input	Image width.
height	Input	Image height.
inputVideoFormat	Input	Format of the input image.
outputImageFormat	Input	Format of the output image.
channelId	Input	ID of a decoding channel.
deviceId	Input	Device ID.
threadId	Input	ID of a callback thread.
callbackFunc	Input	Callback. The structure is as follows: APP_ERROR (DecodeCallBackFunction)(std::shared_ptr<void> buffer, DvppDataInfo& dvppDataInfo, void userData) buffer: output data after decoding. dvppDataInfo: output data information after decoding. userData: user-defined data pointer.
outMode	Input	Frame output mode. The value can be 0 or 1. The default value is 0. 0: delayed frame output mode. The VDEC starts to output the decoding result only after receiving multiple frames in the stream. 1: real-time frame output mode. VDEC starts to output the decoding result in real time after receiving one frame in the stream. Only H.264/H.265 standard streams with simple reference relationships are supported (no long-term reference frames or B-frames).
videoChannel	Input	Reserved.
skipInterval	Input	Frame skipping parameter.
userData	Input	Customized data.

Parent topic: Data Structure