MPEG1 file real-time playing method based on IP STB

An IP set-top box, real-time playback technology, applied in color TV components, TV system components, electrical components, etc., can solve the problem of inability to transmit data decoding and real-time playback through RTP protocol.

Active Publication Date: 2009-02-25
HISENSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, there are few existing hardware decoding chips dedicated to supporting streaming media playback. Generally, hardware decoding chips only support local file playback with a single interface. Therefore, this type of decoder cannot decode and play real-time data transmitted by the RTP protocol.

Method used

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  • MPEG1 file real-time playing method based on IP STB
  • MPEG1 file real-time playing method based on IP STB
  • MPEG1 file real-time playing method based on IP STB

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1, as shown in the accompanying drawing, the method step of the real-time broadcast of the MPEG1 file based on the IP set-top box is as follows:

[0043] In the first step, the SDP information transmitted through the RTSP protocol is analyzed to obtain the file information parameters required by the decoder for real-time playback.

[0044] The information parameters that can be obtained from the SDP information include file type, duration, audio and video encoding format, sampling frequency, maximum rate, etc. The above parameters are used to initialize the hardware decoder.

[0045] Such as figure 1 As shown, the playback support information that can be obtained by the following parameters in SDP is:

[0046] The "m=(media name and transmission address)" field obtains the media type and encoding format;

[0047] The format of the "a=*(0 or more session attribute lines)" field is a=:, where the attributes include duration, sampling frequency, maximum rate,...

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Abstract

This invention relates to one IP top box MPEG2 file real-time play method based on single input interface, which is aimed for single input interface decoder chip through RTSP, RTP / RTCP transmission agreement to isolate audio or visual frequency data to integrate similar MPEG2 PS system form data flow file to realize flow media file download and real time play. This method adopts reverse process in sealing process to restore MPEG flow.

Description

technical field [0001] The invention relates to a method for realizing downloading and real-time playing of MPEG1 streaming media files in a single-input interface IP set-top box. Background technique [0002] At present, due to limitations in network bandwidth, hardware processing capabilities, and protocol specifications, downloading a large amount of audio and video multimedia data from network media has high requirements for download time and storage space. This contradiction is particularly prominent for single-input interface IP set-top boxes with relatively small storage space and high real-time requirements. [0003] The existing streaming media technology has solved this problem well. Streaming is a new concept that has appeared on the Internet in recent years. It mainly refers to the general term for the technology of transmitting multimedia data through the network. [0004] Streaming media includes both broad and narrow meanings: in a broad sense, streaming med...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/26H04N5/00H04L29/06
Inventor 刘琚胥长彬乔建苹李玉军周鹏
Owner HISENSE
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