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Media data error correction transmission and error correction methods and devices, equipment and storage medium

A technology of media data and transmission method, applied in the field of audio and video transmission, can solve the problems of inability to meet real-time multimedia data service transmission requirements, loss of media data packets, inability to guarantee data integrity, etc.

Inactive Publication Date: 2019-03-29
KYLAND TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that the prior art has the following defects: the improvement of UDP performance is at the expense of data integrity, so it cannot provide guarantees for the transmitted data, and it is very easy to be blocked due to network congestion, packet loss, etc. The phenomenon of media data packet loss caused by overtime loss or transmission damage, which cannot meet the transmission requirements of real-time multimedia data services

Method used

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  • Media data error correction transmission and error correction methods and devices, equipment and storage medium
  • Media data error correction transmission and error correction methods and devices, equipment and storage medium
  • Media data error correction transmission and error correction methods and devices, equipment and storage medium

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Embodiment 1

[0049] Figure 1a It is a flowchart of a media data error correction transmission method provided by the first embodiment of the present invention. This embodiment is applicable to the case of packet transmission of media data. The method can be executed by a media data error correction transmission device. It can be implemented in software and / or hardware, and can generally be integrated in a computer device (typically a computer device such as an encoding terminal) and used in conjunction with a media data packet decoding terminal. Correspondingly, such as Figure 1a As shown, the method includes the following operations:

[0050] S110. Group the original media data packets in a sequence of numbers.

[0051] Among them, the original media data packet may be an audio and video media data packet to be sent without encapsulation processing.

[0052] In the embodiment of the present invention, when the media data service is processed, the group may be used as a unit to send in batches, ...

Embodiment 2

[0071] Figure 2a It is a flowchart of a media data error correction method provided in the second embodiment of the present invention. This embodiment is applicable to the case of performing error correction on received packet media data. The method can be executed by the media data error correction device. The device can be implemented by software and / or hardware, and can generally be integrated in a computer device (typically a computer device such as a decoding terminal) and used in conjunction with a media data packet encoding terminal. Correspondingly, such as Figure 2a As shown, the method includes the following operations:

[0072] S210. Receive RTP media data packets and RTP redundant packets of each group sent by the encoding terminal, and perform RTP decapsulation processing to obtain all received original media data packets and redundant packets of each group; wherein, the RTP redundancy The packet is generated by performing RTP encapsulation after encoding all the o...

Embodiment 3

[0088] image 3 It is a schematic diagram of a media data error correction transmission device provided in the third embodiment of the present invention, such as image 3 As shown, the device includes: a data packet grouping module 310, a data packet sending module 320, a redundant packet generating module 330, and a redundant packet sending module 340, wherein:

[0089] The data packet grouping module 310 is used for grouping the original media data packets in order of numbers;

[0090] The data packet sending module 320 is configured to, for each packet, perform RTP encapsulation processing on the original media data packet in the packet to generate the RTP media data packet of the packet and send it to the destination terminal, and divide each of the original media data packets into groups For local storage;

[0091] The redundant packet generating module 330 is configured to perform encoding processing on all the original media data packets in the group to generate the redundant ...

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Abstract

The embodiment of the invention discloses media data error correction transmission and error correction methods and devices, equipment and a storage medium. The media data error correction transmission method includes: grouping original media data packets according to a number order; for all sub-groups, carrying out real-time transport protocol (RTP) encapsulation on the original media data packets in the sub-groups to generate RTP media data packets of the sub-groups, sending the same to a destination terminal, and locally storing all the original media data packets according to the sub-groups; when it is determined that all the original media data packets in the sub-groups are stored, encoding all the original media data packets in the sub-groups, and generating redundancy packets of thesub-groups; and carrying out RTP encapsulation on the redundancy packets to generate RTP redundancy packets of the sub-groups, and sending the same to the destination terminal. The technical solutionof the embodiment of the invention can improve transmission effects of real-time audio-frequency and video data services, and thus satisfy transmission requirements of real-time multimedia data services.

Description

Technical field [0001] The embodiments of the present invention relate to the technical field of audio and video transmission, and in particular to a method, device, device, and storage medium for media data error correction transmission and error correction. Background technique [0002] With the continuous development of network technology and multimedia services, multimedia communication services gradually occupy a dominant position in Internet applications. [0003] The existing transport layer schemes used for real-time audio and video interaction on the Internet include TCP (Transmission Control Protocol) and UDP (User Datagram Protocol). The TCP protocol can provide a relatively reliable guarantee for data transmission between two endpoints. When the data is transmitted to the receiver, the receiver must check the correctness of the data. The sender can send the next data block only after receiving the correctness approval of the receiver. If no confirmation message is re...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L1/00
CPCH04L1/0041H04L1/0045H04L65/80H04L65/764H04L65/762H04L65/65H04L65/70
Inventor 吴雨
Owner KYLAND TECH CO LTD
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