VideoDecoder

Function Usage

Constructor of the VideoDecoder class. If the construction fails due to insufficient memory or an unidentified processor, the "std::runtime_error" exception occurs.

Prototype

VideoDecoder(const VideoDecodeConfig& vDecodeConfig, const int32_t deviceId = 0,
             const uint32_t channelId = 0);

Parameter Description

Parameter	Input/Output	Description
vDecodeConfig	Input	Parameters for video decoding (transferred in a structure)
deviceId	Input	Processor where the video decoder is deployed. The default ID is 0. Value range: [0, Number of identified processors - 1].
channelId	Input	Video stream index of the video decoder For the Atlas 200/300/500 inference product, the value ranges from 0 to 31. If the same channel ID is constructed repeatedly, the construction fails. For the Atlas inference products, the value ranges from 0 to 255. If the same channel ID is constructed repeatedly, the channel ID is automatically adjusted.

Parameter

Input/Output

Description

vDecodeConfig

Input

Parameters for video decoding (transferred in a structure)

deviceId

Input

Processor where the video decoder is deployed. The default ID is 0.

Value range: [0, Number of identified processors - 1].

channelId

Input

Video stream index of the video decoder

For the Atlas 200/300/500 inference product, the value ranges from 0 to 31.
If the same channel ID is constructed repeatedly, the construction fails.
For the Atlas inference products, the value ranges from 0 to 255.
If the same channel ID is constructed repeatedly, the channel ID is automatically adjusted.

Parent topic: VideoDecoder