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Audio-video stripping method and system for TS media

A technology for transmitting streams, audio and video, applied in the field of set-top boxes, which can solve the problem of high cost of set-top boxes, achieve the effect of reducing data copying and high processing efficiency

Active Publication Date: 2013-03-20
四川九洲投资控股集团有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for stripping audio and video of TS transmission streaming media in view of the technical problem of high cost of set-top boxes caused by the use of hardware circuits in the prior art, and the invention also discloses a method for stripping audio and video of TS transmission streaming media system

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  • Audio-video stripping method and system for TS media

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Embodiment Construction

[0016] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0017] Such as figure 1 The flowchart of the method for stripping the audio and video of the TS transmission streaming media shown. The invention discloses a method for stripping audio and video from TS transmission stream media, which specifically includes the following steps: 1. After the set-top box receives the TS transmission stream, it demultiplexes to obtain the demultiplexed digital TV elementary code stream PES. The digital television elementary code stream PES includes audio data and video data; 2. According to the packet identifier PID obtained in the demultiplexing process ...

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Abstract

The invention relates to the field of set top boxes and discloses an audio-video stripping method and a system for TS (transport stream) media. The method comprises the steps that 1, a set top box receives and demultiplexes a TS; 2, a basic code stream of a digital television is identified according to PIDs (packet identifiers) of audio data and video data acquired during a demultiplexing course; and 3, If a node of a buffer queue has the audio data, then the node is added to a audio data queue; if the node of the buffer queue has the video data, then the node is added to a video data queue; and if the node of the buffer queue has the audio data and the video data, then the node is added to both the audio data queue and the video data queue. TS data after demultiplexing is subjected to attribute marking, and the audio data and the video data of a single program are stripped and reconstituted according to attributes. The function is completely accomplished by CPU (central processing unit) software and does not require a hardware support. Meanwhile, a shared memory buffer method is adopted, so that data copy is reduced and the processing efficiency is high.

Description

technical field [0001] The invention relates to the field of set-top boxes, in particular to a method and system for stripping audio and video from TS transmission streaming media. Background technique [0002] MPEG-2 is an image compression standard formulated by ISO / IEC / JTC1 / SC29 / WG11. It was developed to meet the comprehensive requirements of digital TV program generation, editing, storage, transmission and reality. It is widely used in digital TV broadcasting and DVD. Digital TV basically uses the MPEG-2 standard for compression and packet transmission, while IPTV also uses the MPEG-2 standard for audio and video in order to be compatible with digital TV broadcast programs. In order to improve bandwidth utilization, the sender generally multiplexes multiple programs to form a program transport stream (Multip program transport stream), referred to as TS transport stream, and the IPTV set-top box needs to process the received transport stream or TS files for demultiplexi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/434H04N21/435
Inventor 李东旭申及
Owner 四川九洲投资控股集团有限公司
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