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Method and device for converting media streams

A conversion method and conversion device technology, applied in the field of communication, can solve problems such as complex network structure and complex network implementation, and achieve the effects of simplifying network structure, improving processing efficiency, and saving resources

Inactive Publication Date: 2011-07-27
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to provide a media stream conversion method and device to solve the problem that the existing media stream conversion in the CS domain and PS domain in the related art is relatively complicated, and different equipment is required for PSTN and wireless network signals To deal with the problem of complex network structure

Method used

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  • Method and device for converting media streams
  • Method and device for converting media streams
  • Method and device for converting media streams

Examples

Experimental program
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Effect test

Embodiment 1

[0060] Embodiment 1: For the conversion process from the media stream carried by the E1 signal of the CRBT service to the RTP data stream, see Figure 6

[0061] Step S601, the signaling processing part of the media server receives the control message of playing audio ringback / video ringtone from the application server;

[0062] Step S602, the media server reads the audio ring back tone / video ring back tone data through the file system;

[0063] Step S603, the media server is streamed into RTP packets (local track files), transcoded into the G.711 (audio color ring) format in the media server, and the audio and video are multiplexed into the H.223 (video color ring) format and sent to E1 DSP of the processing unit;

[0064] Step S604, the DSP takes out the G.711 and H.223 data from the RTP packet under the control of the application server, removes the RTP header and the IP header, and puts the load content into the designated E1 time slot and sends it to the CS domain;

[...

Embodiment 2

[0067] Embodiment 2: For the media stream conversion process from the RBT data stream of the CRBT service to the E1 signal bearer, see Figure 7

[0068] Step S701, the signaling processing part of the media server receives the recorded audio CRBT / video CRBT control message from the application server;

[0069] Step S702, the media server opens the recording file;

[0070] Step S703, the DSP of the media server reads the corresponding E1 time slot data from the E1 interface;

[0071] Step S704, after the DSP buffers the read data to a specified size, add the RTP header and the IP header and send it to the media forwarding storage part (i.e. the PS domain) of the media server;

[0072] Step S705, the media forwarding and storing part stores the audio ring / video ring as required, and the RTP media stream includes G.711 (color) format and H.223 (video ring) format;

[0073] Step S706, the application server determines whether to issue a stop recording command, if yes, execute ...

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Abstract

The invention provides a method and device for converting media streams. The method comprises the steps as follows: a media server receives the media streams borne by E1 signals; the media server acquires data information in a slot time of each path of E1 signals in the media streams borne by the E1 signals; and the media server encapsulates the data information into real-time transport protocol (RTP) packets, and the media steams borne by the E1 signals are converted into RTP data streams. According to the invention, the unified processing for a public switched telephone network (PSTN) and polyphonic ringtone / video polyphonic ringtone signals of wireless networks can be realized, and the mutual conversion of medial signals in a circuit switching domain and a packet switching domain on the media server can be achieved, thus simplifying a network structure, and eliminating the gateways on media parts; and the conversion results are configured in accordance with the demands of the media server, thus improving the processing efficiency and saving considerable resources.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a media stream conversion method and device. Background technique [0002] The playback and recording services of fixed-line and mobile ring tones (including audio and video ring tones and video tones) are read and stored on the media server. This part of the function is usually in the PS (Packet Switched, packet switching) domain Realized, that is, the media content is carried by the RTP (Real-time Transport Protocol, Real-time Transport Protocol) packet, and transmitted to the media storage and forwarding unit of the media server via the IP (Internet Protocol, Internet Protocol) network, or the media storage and forwarding unit is transmitted via the media storage and forwarding unit. IP network transmission out. The PSTN (Public Switched Telephone Network, Public Switched Telephone Network) where the fixed telephone is located and the wireless network where the mobile phone...

Claims

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Application Information

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IPC IPC(8): H04L29/06
Inventor 田路黄升旗丁向军
Owner ZTE CORP
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