Method and device for live video streaming

A technology for live video and live video, which is applied in the field of live video and can solve the problems of live delay, network transmission instability, and inability to meet the real-time requirements of live broadcast.

CN106358077BActive Publication Date: 2019-05-10BEIJING QIYI CENTURY SCI & TECH CO LTD

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: BEIJING QIYI CENTURY SCI & TECH CO LTD
Publication Date: 2019-05-10

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Abstract

The embodiment of the invention discloses a video live broadcasting method and a device thereof. A queue aiming at received PES (Packetized Elementary Streams) packets is preset. The method comprises the following steps: determining whether the total time of the received live broadcast video PES packets is not greater than a preset optimal broadcasting time duration; decoding and broadcasting the live broadcast video PES packets if the total time of the received live broadcast video PES packets is not greater than the preset optimal broadcasting time duration; successively adding the live broadcast video PES packets in the queue if the total time of the received live broadcast video PES packets is greater than the preset optimal broadcasting time duration; determining the number of PES packets to be modified according to the total time of the live broadcast video PES packets in the queue, the preset optimal broadcasting time and the broadcasting time occupied by single live broadcast video PES packet when the condition is met; modifying DTS (Decode Time Stamp) of the PES packets to be modified to be same and modifying PTS (Presentation Time Stamp) of the PES packets to be modified to be same; decoding the PES packets in the queue according to the DTS, and returning to the determining step and continuing to perform after finishing decoding the PES packets; and then broadcasting the decoded PES packets according to the PTS. Through the adoption of the video live broadcasting method and the device thereof, the broadcast delay time of the live broadcast video is reduced.

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Description

technical field

[0001] The present invention relates to the technical field of video live broadcast, in particular to a video live broadcast method and device. Background technique

[0002] Live video broadcasting is a way for the client to keep broadcasting simultaneously with the performance scene. The live broadcasting process includes: video encoding and compression, transmission, and receiving and playing on the client side.

[0003] Due to the instability of network transmission, there is data accumulation on the transport layer at a certain time, resulting in live broadcast delay, that is, it cannot meet the real-time requirements of live broadcast. In order to meet the real-time requirements of the live broadcast and reduce the delay of the live broadcast, it is necessary to lose some data or speed up the playback within a certain period of time. The existing method is to discard in the unit of Group Of Picture (GOP) at the transport layer. When the data accumulatio...

Claims

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