METHOD, SYSTEM AND STREAM MEDIA SERVER FOR SUPPORTING MULTI AUDIO TRACKS

• US 20090172763A1
• Filed: 02/27/2009
• Published: 07/02/2009
• Est. Priority Date: 08/30/2006
• Status: Abandoned Application

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: LIU, Weiyu
• Application Number:
  US12/394,953
• Publication Number:
  US 20090172763A1
• Time in Patent Office: Days
• US Class Current: 725/114
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/612 for unicast
• CPC Class Codes: H04L 65/762 at the source reformatting of additional data in video distribution servers H04N21/2355
• CPC Class Codes: H04N 21/2368 Multiplexing of audio and video streams
• CPC Class Codes: H04N 21/4341 Demultiplexing of audio and video streams
• CPC Class Codes: H04N 21/4344 Remultiplexing of multiplex streams, e.g. by modifying time stamps or remapping the packet identifiers
• CPC Class Codes: H04N 21/4856 for language selection, e.g. for the menu or subtitles
• CPC Class Codes: H04N 21/8106 involving special audio data, e.g. different tracks for different languages

Abstract

A method for supporting multi audio tracks in wireless communication field, which uses multi stream media servers to share the assignment for supporting multi audio tracks. One stream media server receives one video data and multi audio data, but outputs only one determinate audio data; or one stream media server receives one video data and one audio data from multi audio data. User can select the required language by using portal website, and then connect to the stream media server for obtaining one video data and one audio data. The invention also provides a stream media server and a system for supporting multi audio tracks.

Claims

1. A method for supporting multiple audio tracks comprising:

sending one channel of video data and multiple channels of audio data to a stream media server by a live broadcast encoder; and

replicating the one channel of video data and one channel of the multiple channels of audio data and sending the replicated video data and audio data to a user'"'"'s terminal according to the user'"'"'s request by the stream media server.

2. The method of claim 1, wherein, the live broadcast encoder sends an Session Description Protocol (SDP) file containing port numbers for the one channel of video data and the multiple channels of audio data to the stream media server, and the stream media server receives the one channel of video data and the multiple channels of audio data by listening to the ports.

3. The method of claim 2, wherein, the SDP file further contains parameter information for the one channel of video data and the multiple channels of audio data, and the stream media server specifies, in a local configuration file, the one channel of the multiple channels of audio data to be replicated according to the SDP file.

4. The method of claim 1, wherein, the live broadcast encoder sends an SDP file containing port numbers for the one channel of video data and the one channel of the multiple channels of audio data to the stream media server, and the stream media server receives the one channel of video data and the one channel of the multiple channels of audio data by listening to the ports.

5. The method of claim 1, wherein, the one channel of the multiple channels of audio data is specified by an audio track number or tag.

6. The method of claim 5, wherein, the audio track number or tag is specified in the configuration file in the stream media server.

7. The method of claim 5, wherein, a link to a stream media server is established in a portal website, and the link comprises the audio track number or tag.

8. A stream media server comprising:

a receiving unit, adapted to receive one channel of video data and multiple channels of audio data output from a live broadcast encoder;

a replicating unit, adapted to replicate the one channel of video data and one channel of the multiple channels of audio data specified by a local configuration file; and

a sending unit, adapted to send the one channel of video data and the one channel of audio data replicated by the replicating unit to a terminal.

9. A stream media server comprising:

a receiving unit, adapted to receive one channel of video data and one channel of multiple channels of audio data output from a live broadcast encoder;

a replicating unit, adapted to replicate the one channel of video data and the one channel of audio data received by the receiving unit; and

a sending unit, adapted to send the one channel of video data and the one channel of audio data replicated by the replicating unit to the terminal.

10. A system for supporting multiple audio tracks, comprising a live broadcast encoder and multiple stream media servers connected to the live broadcast encoder, wherein

the live broadcast encoder is adapted to send one channel of video data and multiple channels of audio data to the multiple stream media servers;

and

the stream media server is adapted to replicate the one channel of video data and one channel of the multiple channels of audio data and send the replicated video data and audio data to a user'"'"'s terminal according to the user'"'"'s request.

11. The system of claim 10, further comprising:

a portal website, adapted to establish a link to the stream media server, wherein the link comprises of an audio track number or tag that specifies the one channel of the multiple channels of audio data.