Method and device for reducing live broadcasting time delay and standstill as well as live broadcasting system

Abstract

The invention discloses a method for reducing live broadcasting time delay and standstill. An anchor end and a client are provided; and the method comprises the steps of actively discarding partial or all data packets to enable the data packets not to enter a transmitting queue by the anchor end when the number of data packets of the transmitting queue is abnormal; when the client receives a lacked frame and the imperfect frame is B-lacked frame or a P-lacked frame, completing based on front and back frames; and if the lacked frame is I-lacked frame, copying a former group of the normal picture for playing. An existing rtmp live broadcasting protocol may bring in a time delay when aiming at network jitter, and an anchor-end frame discarding mechanism is added to discard a portion of image data reasonably when the playing at the audience end is not affected by the packaged data, so that a tcp retransmission mechanism is not triggered, the time delay in such type can be reduced efficiently, and real-time interactivity of the anchor and the audiences is added. A player completes the discarded frame, and the completion scheme is tolerance calculation of adjacent images. A person cannot have any feeling of incoherence.

Description

technical field [0001] The invention relates to the technical field of real-time video transmission, in particular to a method and device for reducing live broadcast delay and freeze, and a live broadcast system. Background technique [0002] Internet live broadcasting is becoming more and more popular. Video live broadcasting needs to occupy a large amount of upload bandwidth. However, the network upload bandwidth that my country's telecom operators can provide has not changed. The network often has jitters. The mainstream live broadcast protocol is the rtmp protocol. The basis of this protocol is The tcp protocol, according to the tcp protocol, when the network fluctuates, the data packets that have not been successfully sent by the sender will wait until the network becomes stable and continue to send, which will cause data packets to accumulate on the anchor side, so that the live stream watched by the client will change. The stream for a short period of time before becomi...

AI Technical Summary

Problems solved by technology

[0002] Internet live broadcasting is becoming more and more popular. Video live broadcasting needs to occupy a large amount of upload bandwidth. However, the network upload bandwidth that my country's telecom operators can provide has not changed. The network often has jitters. The mainstream live broadcast protocol is the rtmp protocol. The basis of this protocol is The tcp protocol, according to the tcp protocol, when the network fluctuates, the data packets that have not been successfully sent by the sender will wait until the network becomes stable and continue to send, which will cause data packets to accumulate on the anchor side, so that the live stream watched by the client will change. Streaming for a short period of time before becoming the anchor, increasing the delay of the live broadcast

leading to less interactivity,

[0003] The interaction method of the live broadcast platform is mainly that the anchor conducts live broadcast. The audience interacts with the anchor by watching the live video and typing in the text chat room. The small amount of text information transmission is basically real-time transmission. The interaction can be optimized within 3 seconds, and there will be an obvious sense of delay if it is longer than 3 seconds. The things that the anchor did for a long time before, the audience can see it after a long time, which greatly reduces the interactivity, and because of the delay, the screen will also be delayed. Caton, etc.

[0004] My show live broadcast platform currently uses the rtmp protocol for live broadcast, and there is often a phenomenon of viewing delay at the audience end, which greatly affects the interaction between the audience and the host

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