A Multimedia Data Transmission System Suitable for Remote Collaboration

Abstract

The invention discloses a multimedia data transmission system suitable for remote cooperation. It includes a slicing processing module; the slicing processing module is used to analyze the data frame structure of the transmission task and perform slicing operations; if the data frame structure of the transmission task is all internal pictures, then directly slice according to a fixed time length, if The data frame structure of the transmission task contains a group of pictures, and the following processing is performed: judge whether the length of the group of pictures reaches the set value, if yes, directly perform slice operation according to the group of pictures; The number of screen groups mentioned above is reached until the set value is reached, and the slice operation is performed according to the set value of the screen group. The present invention combines the respective advantages of file transmission and stream transmission, can meet the timely delivery requirements for video content while being transmitted, and is not limited to double-speed real-time design, and can be used in high-bandwidth or low-bandwidth environments, improving the transmission efficiency.

Description

technical field [0001] The invention relates to media data transmission technology, in particular to a multimedia data transmission system suitable for remote cooperation. Background technique [0002] Video file transmission is a non-sequential transmission method, which ensures the binary integrity and consistency of the video file by dividing the file into data blocks. However, it is limited by index reading and data transmission disorder. Generally, the entire video file transmission After completion, the receiving end can be used. Video stream transmission is a sequential transmission, which can be played while transmitting, but is limited in usage (mainly used for playing video content), so the transmission speed is designed to be fixed at double speed. [0003] There are mainly two existing methods for transmitting video content (including corresponding audio): file transmission and video stream transmission. Both transfer methods have significant limitations. Firs...

AI Technical Summary

Problems solved by technology

First of all, the non-sequential transmission of video file transmission has a complex structure, and the file can only be used after the transmission is completed.

The high-code video and audio files in professional media materials are very large, and the transmission time in the network is very long. If they cannot be edited and used during the transmission process, it will waste a lot of time and reduce the timeliness of content delivery, especially for timeliness requirements high news

Secondly, the video streaming transmission protocols used in video streaming transmission, such as RTMP and TS, can transmit the screen content to the destination in the first time, but these protocols are generally oriented to real-time application scenarios and are designed for real-time transmission, so when faced with When the bandwidth is large, it cannot be fully utilized for super real-time transmission, and when faced with a small bandwidth, it cannot be transmitted to the destination normally

[0004] In the remote collaboration of video production, it is often necessary to transmit video materials to remote editing and production. Both the timeliness and high efficiency of media content transmission need to be considered, and the video materials used are often broadcast and professional-level bit-rate encoding. Existing Neither video files nor video streaming methods handle well

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