Multimedia data transmission system suitable for field cooperation

Abstract

The invention discloses a multimedia data transmission system suitable for field cooperation. The system comprises a slice processing module; the slice processing module is used for analyzing data frame structures of a transmission task to perform a slice operation; if all data frame structures of the transmission task are the internal pictures, the slicing is directly performed according to fixed time length; if each data frame structure of the transmission task contains a picture group, the slice processing module performs the following processing: judging whether the length of the picture group achieves a set value, if the length achieves the set value, directly performing the slicing operation according to the picture group; if the length does not achieve the set value, orderly overlapping the number of the picture group until to achieve the set value, and performing the slicing operation according to the picture group with the set value. By combining the respective advantages of the file transmission and the stream transmission, the immediate delivery requirement of using the video content in transmitting can be satisfied without being limited by the frequency double real-time design; the video content can be used both in high broadband and low broadband environment, and the transmission efficiency is improved.

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 protocol...

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