The SRT protocol codec fully meets the needs of customers for transmitting high-definition and standard-definition streams through public network IP, which can greatly save the cost of private network bandwidth. Realizing SRT's safe, stable and fast transmission effect is an open source, free and flexible application specification.
1. What is the SRT protocol?
SRT (Secure Reliable Transport) is an open source, free, and flexible application specification. It is a network transmission technology that can transmit data streams in real time and accurately in a complex network environment. The SRT protocol allows a direct connection between the signal source and the target, which is in sharp contrast to many existing video transmission systems, which require a centralized server to collect the signal from a remote location and redirect it to one or Multiple destinations.
2. Practical application scenarios of SRT
1. Point-to-point unidirectional transmission and video interaction.
During the transmission of audio and video streams from the SRT source device (video encoder in the figure below) to the SRT target device (video decoder in the figure below), SRT will It detects and adapts to the constantly changing network status between two devices in real time, resists bandwidth jitter caused by network congestion, and uses its powerful error recovery mechanism to minimize the possibility of network packet loss. At the same time, SRT can also perform AES encryption to ensure information security during data transmission.
2. Point-to-multipoint transmission
By using a streaming media gateway, the video stream sent by one encoder can be distributed to multiple decoders. With the streaming media gateway as the central node, first receive the video stream sent by the encoder, and then Copy and distribute it to multiple decoders to achieve point-to-multipoint video transmission.
3. Video stream protocol conversion and distribution
With media gateway equipment, the input and output of multiple video stream protocols such as SRT, TS over UDP, RTMP PULL/PUSH, etc. can be realized, and various video streams can be copied, converted, and distributed. This greatly increases the compatibility of the SRT system, enables the local TS over UDP and RTMP streams to be smoothly integrated into the SRT system, and improves the flexibility of video forwarding.
SRT is a very popular open source low-latency video transmission protocol. Using SRT reliable transmission technology, it can successfully realize the safe and reliable high-definition video transmission and distribution under the ordinary Internet environment and between multiple places. SRT technology is widely used in the field of video streaming. Because SRT can reduce latency, eliminate central bottlenecks, and reduce network costs. The safe, stable and fast transmission effect of SRT is the biggest advantage of SRT. All kiloview products support SRT protocol.