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The Method of Audio Mixing in STB mp3 Streaming Media

A streaming media and set-top box technology, applied in the direction of using detectable carrier information, carrier index/addressing/timing/synchronization, digital recording/reproduction, etc., can solve problems such as complex environment and large background music files, and improve efficiency , reduce data copy, reduce the effect of occupation

Active Publication Date: 2014-10-08
四川九洲投资控股集团有限公司
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The background music file used for mixing is relatively large and cannot be downloaded to the set-top box for decoding.
Downloading data from the network is more complicated than playing local files. It is necessary to ensure smooth playback and be limited by the resources of the set-top box. At the same time, it must be compatible with general mp3 music playback. The original MP3 playback method of the set-top box obviously cannot meet the requirements.

Method used

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  • The Method of Audio Mixing in STB mp3 Streaming Media
  • The Method of Audio Mixing in STB mp3 Streaming Media

Examples

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Embodiment Construction

[0015] The present invention will be further described below in combination with specific embodiments and accompanying drawings.

[0016] figure 1 The process of mixing audio for mp3 streaming. Such as figure 1 As shown, more than two pcm streams are output by one pcm, and the source of pcm is the data decoded from the mp3 stream provided by the http server.

[0017] figure 2 For the method for set-top box mp3 streaming media mixing of the present invention, it may further comprise the steps:

[0018] Step 1 data download process: establish a network connection, send an http request and analyze the response returned by the http server, obtain the available mp3 data buffer, the mp3 data buffer receives data and fills it, after the mp3 data buffer is full, the mp3 Assign the right to use the data buffer to the data decoding process, and apply for the next usable mp3 data buffer;

[0019] Step 2 data decoding process: obtain the decodable mp3 data buffer, and obtain the usa...

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Abstract

The invention relates to the field of set top boxes and discloses an MP3 streaming media sound mixing method of a set top box. The method comprises the following step of: 1) a data downloading process; 2) a data decoding process: obtaining a decodable MP3 data buffer zone, obtaining an available pulse code modulation (PCM) data buffer zone and decoding MP3 data in the PCM data buffer zone; and assigning the decoded MP3 data buffer zone to the data downloading process, assigning the PCM data buffer zone to a PCM injection process and applying for a next decodable MP3 data buffer zone; and 3) the PCM injection process. The method has the advantages that since multiple processes share an internal memory to realize data caching and the MP3 data is downloaded segment by segment, the occupation rate of the internal memory is reduced; since the access and the protection of the shared internal memory adopt an assigning method, the data copies are reduced and the efficiency is improved.

Description

technical field [0001] The invention relates to the field of set-top boxes, in particular to a method for mixing mp3 streaming media in a set-top box. Background technique [0002] IPTV is Interactive Network Television, which is a brand-new technology that utilizes broadband cable television network and integrates Internet, multimedia, communication and other technologies to provide home users with various interactive services including digital television. Users can enjoy IPTV services in two ways at home: (1) computer, (2) network set-top box + ordinary TV. It can well adapt to the rapid development trend of today's network and make full and effective use of network resources. With the growth of the IPTV industry, users have higher and higher requirements for the application of IPTV network set-top boxes. MP3 playback and games have become necessary functions, and audio mixing is an indispensable part in the realization of functions such as web browsing and games. The ba...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B27/32G11B20/10
Inventor 袁娟申及唐勇
Owner 四川九洲投资控股集团有限公司
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