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It is a common real-time video transmission solution to transmit video to Android APP through UDP on Raspberry Pi. The following are detailed explanations, flowcharts, explanations of usage scenarios, and links to related literature materials.
The principle is explained in detail:
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Raspberry Pi collects video data: Use the camera module on the Raspberry Pi or external camera equipment to collect video data through the corresponding interface (such as the CSI interface).
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Video encoding: The collected video data may be original uncompressed data, which needs to be encoded and compressed to reduce data volume and bandwidth requirements. Commonly used video coding standards include H.264, H.265, and so on.
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UDP transmission: transmit the encoded video data through UDP protocol. UDP is a connectionless transmission protocol suitable for real-time transmission applications. As the sender of UDP, the Raspberry Pi divides the video data into small packets and sends them to the specified target IP address and port through the UDP socket.
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Android APP receives data: The APP on the Android phone acts as the receiver of UDP, creates a UDP socket, and listens to the specified port. When receiving a packet from the Raspberry Pi, parse the packet and process it accordingly.
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Decoding and display: Use the corresponding video decoder on the Android APP to decode the received video data. The decoded video frames can be displayed or further processed on the Android device.
flow chart: