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Method for debouncing stream media

A streaming media and de-jitter technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve the problems of wasting memory space, single fixed buffer delay depth, increasing de-jitter sorting overhead, etc., to reduce overhead and improve quality , to avoid the effect of wasting

Active Publication Date: 2007-05-09
KONKA GROUP
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Problems solved by technology

[0004] In order to solve the technical problem that the physical memory is discontinuous and a single fixed buffer delay depth is used in the prior art streaming media de-jittering method, thereby wasting memory space and increasing the de-jittering sorting overhead, the present invention provides a method that adopts seamless data storage and Streaming Media Dejitter Method Using Dual Delay Depth for Jitter Sorting

Method used

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  • Method for debouncing stream media

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] As shown in FIG. 1 , FIG. 1 is a schematic flow chart of the streaming media de-jittering method of the present invention. In the present invention, the de-jittering method of streaming media is passed through the following steps:

[0019] Step 1: Apply for a fixed-length memory as a buffer according to the code rate of the media stream;

[0020] Step 2: Receive the data packets of the media stream, and extract the serial number, time stamp, media type, flag bit and data packet length of each data packet and other related information, add the corresponding data packet information header and put it into the physical memory space, and at the same time Establish a doubly linked list, and insert the media data in the data packet into the corresponding nodes of the doubly linked list in the order of timestamp and / or sequence number;

[0021] Step 3:...

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Abstract

The method comprises: applying a memory area having a fixed length as a buffer area; receiving packet and extracting the relevant information of the packet; ordering the packet in the buffer area according to relevant information; if passing through a minimal time delay value, then checking the packets in the buffer area to decide if it confirms with the referring condition; if yes, then referring the packets in the buffer area to the application program; if not, then continuing to receive the packets, until the packets in buffer area being accordance with the refereeing condition, the packet in the buffer area just be referred out; if passing through a maximal time delay value, then packets in the buffer area are forced to be referred out.

Description

【Technical field】 [0001] The invention relates to a method for de-jittering streaming media, in particular to a method for de-jittering streaming media such as audio or video data transmitted in real time on the Internet. 【Background technique】 [0002] With the continuous development of science and technology, IP networks are increasingly widely used. Many streaming media data (for example, audio and / or video data) can be transmitted in real time through the IP network. However, due to the different transmission paths of the data packets carrying the above-mentioned streaming media data in the IP network, the time experienced by each data packet from the sending end to the receiving end is different, so that the sequence and interval of each data packet arriving at the receiving end are different from those at the sending end. The order and spacing of emissions, a phenomenon known as latency jitter. If the data with delay and jitter is directly decoded for audio or video,...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L49/9023
Inventor 易立
Owner KONKA GROUP
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