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Multimedia data transmitting method

A multimedia data and transmission method technology, applied in digital transmission systems, transmission systems, data exchange networks, etc., can solve problems such as discontinuous images or sounds, blurred images and sound, and lack of real-time performance, so as to achieve good image quality and sound effect of effect

Inactive Publication Date: 2007-11-07
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One is to use a certain retransmission mechanism to retransmit the lost multimedia data. This method is not real-time and will cause discontinuous images or sounds.
Another method is to send the incomplete data directly to the decoder for decoding, and the decoder will handle these errors. Due to the strong correlation between the current multimedia compressed data, this method may cause image blur or sound noisy

Method used

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  • Multimedia data transmitting method
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Embodiment Construction

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0029] FIG. 1 is a flowchart illustrating a multimedia data transmission method for a set-top box according to the present invention. With reference to Fig. 1, the multimedia data transmission method for set-top box according to the present invention comprises the following steps:

[0030] Step S102, judging whether the playback mode is a normal playback mode or a fast-forward / fast-rewind playback mode, if it is a normal playback mode, then execute step S104, otherwise execute step S112;

[0031] Step S104, comparing the count value in the predetermined field in the header of the transport stream with the count value in the predetermined field in the header of the previous transport stream, and when the obtained difference is not equal to the predetermined value, execute step S108;

[0032] Step S106, comparing the effective length ...

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Abstract

A method for transmitting data of multimedia includes detecting whether data is lost or not by utilizing count value of preset field in transmission stream packet head or count value of preset field in net load packet head and setting error frame mark in multimedia data frame that has lost data if it is.

Description

technical field [0001] The invention relates to a method for transmitting multimedia data, in particular to a method for improving the error-tolerant performance of a decoder in a multimedia terminal product receiving transmission stream. Background technique [0002] In recent years, multimedia technology has been widely used, and various network-based multimedia terminals emerge in an endless stream. In terms of multiplexing and transmission of multimedia streams, transport streams are widely used in the transmission of multimedia streams in IP networks and cable television networks due to their good scalability. Network transmission has the characteristics of long distances, and multimedia code streams need to pass through many network devices, so data loss is inevitable. [0003] There are mainly two ways to deal with multimedia data loss. One is to use a certain retransmission mechanism to retransmit the lost multimedia data. This method does not have real-time perfor...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/06
Inventor 梁宪徐峰刘卫吴忻
Owner ZTE CORP
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