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A set-top box-based data receiving and processing method and device

A technology of a processing device and a processing method, which is applied in the directions of image communication, selective content distribution, electrical components, etc., and can solve the problems of taking up a lot of CPU time and receiving low efficiency of PSI/SI segment data, etc.

Inactive Publication Date: 2015-12-16
SHENZHEN JIUZHOU ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the embodiments of the present invention is to provide a data receiving and processing method and device based on a set-top box, aiming at solving the problem that the PSI / SI segment data is copied twice during the process of the set-top box receiving and parsing the PSI / SI segment data, and the data Copying will take up more CPU time, resulting in the problem of low efficiency of receiving PSI / SI segment data

Method used

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  • A set-top box-based data receiving and processing method and device
  • A set-top box-based data receiving and processing method and device

Examples

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Embodiment 1

[0028] like figure 1 Shown is a method flowchart of a preferred embodiment of a method for receiving and processing data based on a set-top box provided by the present invention. For ease of description, only the parts related to the embodiment of the present invention are shown.

[0029] In step S101, the received data of several PSI / SI segments are stored in a hardware multiplexing buffer.

[0030] In the embodiment of the present invention, after receiving the several PSI / SI segment data, the set-top box directly stores the received several PSI / SI segment data in the hardware multiplexing buffer. Among them, the hardware multiplexing buffer is divided into multiple blocks, and each block is used to store a PSI / SI segment data. The maximum length of the PSI / SI segment data is 4KB, so a hardware multiplexing buffer is at most 4KB. Generally speaking, the size of the hardware multiplexing buffer is 4nKB, and n is an integer greater than 1.

[0031] In step S102, copy the PSI...

Embodiment 2

[0039] figure 2 It is a schematic structural diagram of a preferred embodiment of a data receiving and processing device based on a set-top box in the present invention. For convenience of description, only the parts related to the embodiment of the present invention are shown. The device may be a software unit, a hardware unit or a combination of software and hardware built in the set-top box, or integrated into the set-top box or the application system of the set-top box as an independent pendant. in:

[0040] The data receiving unit 21 is configured to store the received data of several PSI / SI segments into a hardware multiplexing buffer.

[0041] The data copying unit 22 is configured to copy the PSI / SI segment data one by one into several dynamically allocated demultiplexing task buffers.

[0042] The data parsing unit 23 is configured to parse the PSI / SI segment data in several demultiplexing task buffers.

[0043] In the embodiment of the present invention, the data...

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Abstract

The invention is applicable to the field of computer application and provides a set top box-based method and a device for receiving and processing data. The method comprises the steps of storing a plurality of received program specific information / service information (PSI / SI) section data into a hardware multiplexing buffer zone; copying the PSI / SI section data one by one into a plurality of dynamically allocated demultiplexing task buffer zones; and analyzing the PSI / SI section data in the plurality of demultiplexing task buffer zones. In an embodiment of the method and the device, after the PSI / SI section data are received, the PSI / SI section data can be analyzed after being copied once, so that the receiving and processing efficiency of the PSI / SI section data is greatly improved, and even if the PSI / SI section data are transmitted in a high data transmission rate, all section data of the same PSI / SI form can be received in a short time.

Description

technical field [0001] The invention belongs to the field of computer applications, in particular to a method and device for receiving and processing data based on a set-top box. Background technique [0002] The PSI / SI segment is a syntax structure used to map service information into transport stream packets of GB / T17975.1-2000 (a broadcast standard). A PSI / SI table is a collection of a series of PSI / SI segments with the same table identifier. In order to quickly switch programs in the set-top box, quickly descramble the scrambled audio and video streams, quickly display program guide information, quickly search for programs, and reproduce audio and video programs in real time, the set-top box needs to receive and quickly analyze the PSI / SI table when it is running. . In the prior art, the method for the set-top box to receive the PSI / SI data stream is: after the hardware demultiplexing module receives the PSI / SI segment data, the PSI / SI segment data is stored in buffer ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/433H04N21/435
Inventor 陈恒
Owner SHENZHEN JIUZHOU ELECTRIC
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