This is the relevant code for receiving and unpacking events using the libcaer C API:

while (true)
{
	caerEventPacketContainer packet_container = caerDeviceDataGet(device);

	if (packet_container == NULL)
	{
		continue; // Skip if empty
	}

	// Do preparations here before processing packet container
	// xxx
	//

	int32_t max_num_packets = caerEventPacketContainerGetEventPacketsNumber(packet_container);

	for (int32_t packet_index = 0; packet_index < max_num_packets; ++packet_index)
	{
		caerEventPacketHeader packet_header =
			caerEventPacketContainerGetEventPacket(packet_container, packet_index);

		if (packet_header == NULL)
		{
			continue; // Skip if empty
		}

		auto packet_type = caerEventPacketHeaderGetEventType(packet_header);

		if (packet_type == POLARITY_EVENT)
		{
			caerPolarityEventPacket event_packet = (caerPolarityEventPacket) packet_header;

			auto num_events = caerEventPacketHeaderGetEventNumber(packet_header);
			
			for (int32_t event_index = 0; event_index < num_events; ++event_index)
			{
				caerPolarityEvent event = event_packet + event_index;

				auto x = caerPolarityEventGetX(event);
				auto y = caerPolarityEventGetY(event);
				auto polarity = caerPolarityEventGetPolarity(event);
				
				// Process the decoded event here
				// xxx
				//
			
			}
		}
	}

	// Do finishing work here after processing packet container
	// xxx
	//

	caerEventPacketContainerFree(packet_container);
}

Benchmark and use C-API for Inivation cameras #93

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