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Audio and video real-time transmission method and device and audio and video real-time playing method and device

A technology of real-time transmission and real-time playback, applied in the field of audio and video, can solve the problem of large amount of encryption and decryption operations, and achieve the effect of reducing the amount of encryption and decryption operations.

Inactive Publication Date: 2016-08-31
LE SHI ZHI XIN ELECTRONICS TECH TIANJIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a method and device for real-time audio and video transmission, and a method and device for real-time playback of audio and video to solve the technical problem of excessive computational complexity in encryption and decryption in the prior art

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  • Audio and video real-time transmission method and device and audio and video real-time playing method and device
  • Audio and video real-time transmission method and device and audio and video real-time playing method and device
  • Audio and video real-time transmission method and device and audio and video real-time playing method and device

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Embodiment Construction

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0048] In order to better illustrate the technical solutions of the embodiments of the present invention and the beneficial effects produced by them, the present invention will first introduce the format of slices of transport streams in the prior art.

[0049] figure 1 It is a schematic diagram of the format of the slice of the transport stream ...

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Abstract

The embodiment of the invention provides an audio and video real-time transmission method comprising the steps that grouped original video stream and grouped original audio stream are multiplexed and then stored as program slices; program specific information is encrypted and stored as program specific information slices; and the program specific information and program slices are transmitted. The embodiment of the invention also provides the audio and video real-time transmission method and an audio and video real-time playing method and device. The computation burden of encryption and decryption in the prior art can be reduced by the audio and video real-time transmission method and device and the audio and video real-time playing method and device.

Description

technical field [0001] Embodiments of the present invention relate to the field of audio and video technologies, and in particular, to a method and device for real-time transmission of audio and video, and a method and device for real-time playback of audio and video. Background technique [0002] The HLS (HTTP Live Streaming) protocol is an extended HTTP protocol developed by Apple and used in webcast and on-demand scenarios. The protocol uses Transport Stream (TS) to encapsulate data. Each transport stream carries data information such as video (Video), audio (Audio), and stream index information such as program association table (Program Association Table, PAT) and program mapping table (Program Map Table, PMT). [0003] The HLS protocol supports the encryption of the slices of the transport stream. The encryption scheme in the prior art is to encrypt each slice. Therefore, the calculation amount of this encryption method is relatively large, and the calculation amount of...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04N21/2347H04N21/2368
CPCH04L63/0435H04N21/23476H04N21/2368H04L65/762H04L65/65H04L9/40
Inventor 郑吉剑
Owner LE SHI ZHI XIN ELECTRONICS TECH TIANJIN