mxpi_channelselector

Function	Transparently transmits buffers of a specified channel ID, filters out buffers of other channels, and clears the metadata except the frame information.
Synchronous/Asynchronous (Status)	Asynchronous
Constraints	The value of channelIds cannot be empty.
Plugin Base Class (Factory)	mxpi_channelselector
Input/Output	Single input: buffer (data type: MxpiBuffer) Single output: buffer (data type: MxpiBuffer)
Port Format (Caps)	Static input: {"ANY"} Static output: {"ANY"}
Property	For details, see Table 1.

**Table 1** mxpi_channelselector plugin properties
Property Name	Description	Mandatory or Not	Modifiable or Not
channelIds	Input channel IDs, which are separated by commas (,). Each channel ID must be unique. Example: "channelIds":"0,1"	Yes	Yes

Example

Input buffers from multiple channels, and output the buffer of the specified channel while filtering out the buffers and metadata of other channels.

Pipeline sample:

       
            "mxpi_channelselector0":{
    "props":{
                "channelIds":"0,1"
     },
     "factory":"mxpi_channelselector",
     "next":"queue4"
},

Parent topic: On-Screen Display (OSD) Plugins