Non-real-time video and audio file transmission method

Abstract

The invention discloses a non-real-time video and audio file transmission method. The method comprises a slicing operation step S2; the slicing step S2 comprises the following steps: analyzing the data frame structure of a transmission task, and performing a slicing operation; if the data frame structure of the transmission task is entirely internal image, directly slicing according to a fixed time length, and if the data frame structure of the transmission task contains an image group, performing the following processing: judging whether the length of the image group reaches a set value, and if so, directly performing the slicing operation according to the image group with the set value; and if not, sequentially superposing the number of the image groups until reaching the set value, and performing the slicing operation according to the image group with the set value. The non-real-time video and audio file transmission method combines the advantages of file transmission and flow transmission, can satisfy the timely transmission requirements of using while transmitting of video contents, the non-real-time video and audio file transmission method is not limited to the real-time design of doubling speed and can be used in high bandwidth and low bandwidth environments, and thus the transmission efficiency is improved.

Description

technical field [0001] The invention relates to media data transmission technology, in particular to a method for non-real-time video and audio file transmission. 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. First of all,...

AI Technical Summary

Problems solved by technology

First of all, video file transmission is a non-sequential transmission and has a complex structure. Generally, 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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