GetPacket
Function Usage
Template function, which requests data from a specified element in a specified service stream. When the memory is insufficient, an exception is thrown in the function. Multi-thread concurrency is not supported.
- If the specified element is the appsink plugin, the received data is Packet<std::shared_ptr<MxstBufferOutput>>.
- If other elements are specified, the corresponding metadata is obtained, including Packet<std::shared_ptr<MxVisionList>>, Packet<std::shared_ptr<MxTensorPackageList>>, Packet<std::shared_ptr<MxObjectList>>, Packet<std::shared_ptr<MxImageMaskList>>, Packet<std::shared_ptr<MxClassList>>, Packet<std::shared_ptr<MxPoseList>>, Packet<std::shared_ptr<MxTextObjectList>>, and Packet<std::shared_ptr<MxTextsInfoList>>.
Prototype
1 2 | template <class T> APP_ERROR MxStreamManager::GetPacket(Packet<T>& packet, const std::string& streamName, const std::string& outElement, const uint32_t& msTimeOut = DELAY_TIME) |
Parameters
Parameter |
Input/Output |
Description |
|---|---|---|
packet |
Output |
Data output by the specified element |
streamName |
Input |
Stream name |
outElement |
Input |
Element name |
msTimeOut |
Input |
Maximum waiting time, in milliseconds. The default value is 3000 ms (3s). |
Response Parameters
Data Structure |
Description |
|---|---|
APP_ERROR |
For details about the returned error codes, see APP_ERROR Description. |
Parent topic: MxStreamManager