What does RTCP do?

RTCP stands for Real-time Transport Control Protocol. It works in conjunction with the Real-time Transport Protocol (RTP) to monitor data delivery and provide feedback on the quality of service (QoS) for real-time data transmission, such as audio and video streams.

Explanation:

• Monitoring Data Delivery: RTCP packets are sent periodically to provide information about the session, including the number of packets sent, lost, and jitter.
• Quality of Service (QoS): It helps in assessing the quality of the transmission, including latency and packet loss, which is crucial for applications like video conferencing and live streaming.
• Feedback Mechanism: RTCP provides feedback to the senders about the network conditions, allowing them to adjust the transmission parameters accordingly.

Example:

In a video conferencing application, RTP is used to transmit the video and audio streams, while RTCP is used to send reports on the quality of the connection. If the RTCP report indicates high packet loss, the application can reduce the video quality to improve the overall experience.

Cloud Service Recommendation:

For applications requiring robust real-time data transmission and monitoring, Tencent Cloud's Real-Time Communication (RTC) service offers comprehensive solutions that leverage RTCP and RTP to ensure high-quality video and audio communications.