CN109788342A

CN109788342A - A kind of device and method of digital television devices quick search program

Info

Publication number: CN109788342A
Application number: CN201910093009.4A
Authority: CN
Inventors: 曾祥根
Original assignee: Sichuan Changhong Electric Co Ltd
Current assignee: Sichuan Changhong Electric Co Ltd
Priority date: 2019-01-30
Filing date: 2019-01-30
Publication date: 2019-05-21

Abstract

The invention discloses a kind of methods of digital television devices quick search program, and the method includes the steps 1: multiple tuner are designed in hardware design, and using the chip and tuner equipment for supporting multichannel ts input；Step 2: determining that a search dominant frequency point scans for, and parse NIT and SDT table；Step 3: while opening search and parsing that multiple tuner threads carry out PAT and pmt table lattice.This method carries out the search and parsing of PAT and pmt table lattice by multiple tuner equipment simultaneously, compared to existing single tuner parsing or double tuner a tuner parse the idle working condition of another tuner for, multiple tuner equipment multithreadings are parsed simultaneously, the time that speed is faster spent is less, improve user experience, it can be good at final result in the prior art since digital TV channel is excessive, the problem of tuning needs the telephone expenses plenty of time.

Description

A kind of device and method of digital television devices quick search program

Technical field

The present invention relates to digital TV technologies, are a kind of digital television devices quick search programs specifically Device and method.

Background technique

Program search feature is the common and important function of digital television devices, and tuning speed directly affects user experience effect Fruit, for a long time due to the difference of the limitation of hardware and different operators front end data, the promotion of program searching performance is deposited always In certain limitation, on the terminal device, worked at the same time to realize live streaming with multichannel is recorded, it will usually configure dual tuner Tuner, also referred to as tuner.But during tuning, since the rendition list is being written over, without live streaming With recording, so another way tuner is generally in idle state using tuner tuning all the way.And tuning process time-consuming usually compared with It is long, it is based especially on the tuning process of digital video broadcast stream etc., since there are many program, the time that tuning is spent can be more, time-consuming Up to more than ten minutes even dozens of minutes.

Summary of the invention

The purpose of the present invention is to provide a kind of device and method of digital television devices quick search program, for solving In the prior art DTV tuning when due to program too pair and time-consuming problem.

The present invention is solved the above problems by following technical proposals:

A kind of method of digital television devices quick search program, described method includes following steps:

Step 1: designing multiple tuner in hardware design, and set using the chip and tuner for supporting multichannel ts input It is standby；

Step 2: determining that a search dominant frequency point scans for, and parse NIT and SDT table；

Step 3: while opening search and parsing that multiple tuner threads carry out PAT and pmt table lattice, the frequency that will be parsed Road information is stored in program database.

This method carries out the search and parsing of PAT and pmt table lattice by multiple tuner equipment simultaneously, compares existing list For a tuner of a tuner parsing or double tuner parse the idle working condition of another tuner, multiple tuner Equipment multithreading is parsed simultaneously, and the time that speed is faster spent is less, improves user experience, it is existing to can be good at final result Since digital TV channel is excessive in technology, the problem of tuning needs the telephone expenses plenty of time.

Preferably, the step 2 includes the following steps: the search and parsing of NIT and SDT table

Step 2.1: after starting search, being locked in dominant frequency point using a tuner equipment；

Step 2.2: search NIT table and parsing NIT table obtain all frequency point information data；

Step 2.3: searching for current SDT and other SDT, parse all programm names, the programme informations such as type.

A dominant frequency point is determined first, is that multiple tuner equipment are same then disposably by the information search of channel and parsing When the process that is parsed of multithreading get out resource and data, effectively improve parsing rate.

Preferably, the step 3 includes the following steps: the search and parsing of PAT and pmt table lattice

Step 3.1: while starting multiple separate threads；

Step 3.2: per thread obtains a different tuner resource, starts acquisition one one by one and does not search for frequency point letter Breath, while updating the frequency point is to have begun search condition；

Step 3.3: each thread independence search thread locks frequency point to be searched；

Step 3.4: each thread independence search thread search PAT and the PMT information for parsing PAT；

Step 3.5: each thread independence search thread searches for audio-video PID letter in all pmt table lattice and parsing pmt table lattice Breath updates into corresponding program database, the search thread is exited when all frequency points, which are all searched for, to be finished.

Per thread independently carries out the parsing of PAT and PMT and updates into program database, and multiple threads work at the same time, Parsing effect is significantly promoted.

Compared with prior art, the present invention have the following advantages that and the utility model has the advantages that

(1) present invention carries out the search and parsing of PAT and pmt table lattice by multiple tuner equipment simultaneously, compared to existing It is multiple for a tuner of single tuner parsing or double tuner parse the idle working condition of another tuner Tuner equipment multithreading is parsed simultaneously, and the time that speed is faster spent is less, is improved user experience, be can be good at tying Office is in the prior art since digital TV channel is excessive, the problem of tuning needs the telephone expenses plenty of time.

(2) present invention determines a dominant frequency point first, is multiple then disposably by the information search of channel and parsing The process that tuner equipment simultaneous multi-threading is parsed gets out resource and data, can effectively improve parsing rate.

Detailed description of the invention

Fig. 1 is the flow diagram of each thread parallel search and parsing PAT and PMT in the present invention.

Specific embodiment

The present invention is described in further detail below with reference to embodiment, embodiments of the present invention are not limited thereto.

Embodiment 1:

In conjunction with shown in attached drawing 1, a kind of method of digital television devices quick search program, the method includes walking as follows It is rapid:

Step 1: in hardware design design 4 tuner, using support multichannel ts input SW4608F chip and Tuner equipment；SW4608F chip supports the road 1-8 E1 route to realize that TS flows to point-to-point transmission, meets ASI interface standard；

Step 2: determining that a search dominant frequency point scans for, and parse NIT and SDT table, process includes the following steps:

Step 3: while opening search and parsing that 4 tuner threads carry out PAT and pmt table lattice, the channel that will be parsed Information is stored in program database, and process includes the following steps:

Step 3.1: while starting 4 separate threads；

Compared with the television equipment of single tuner, although the rate of the present embodiment dominant frequency point search is the same, the present embodiment is logical PAT the and PMT information that 4 tuner equipment simultaneously scan for parsing other frequency points is crossed, is then loaded in program database, speed It is 4 times of the prior art；

Although reference be made herein to invention has been described for explanatory embodiment of the invention, and above-described embodiment is only this hair Bright preferable embodiment, embodiment of the present invention are not limited by the above embodiments, it should be appreciated that those skilled in the art Member can be designed that a lot of other modification and implementations, these modifications and implementations will fall in principle disclosed in the present application Within scope and spirit.

Claims

1. a kind of method of digital television devices quick search program, which is characterized in that described method includes following steps:

Step 1: multiple tuner are designed in hardware design, using the chip and tuner equipment for supporting multichannel ts input；

Step 3: while search and parsing that multiple tuner threads carry out PAT and pmt table lattice are opened, the channel parsed is believed Breath deposit program database.

2. the method for digital television devices quick search program according to claim 1, which is characterized in that the step 2 The search and parsing of NIT and SDT table are included the following steps:

3. the method for digital television devices quick search program according to claim 1, which is characterized in that the step 3 The search and parsing of PAT and pmt table lattice are included the following steps:

Step 3.1: while starting multiple separate threads；

Step 3.2: per thread obtains a different tuner resource, starts acquisition one one by one and does not search for frequency point information, together The Shi Gengxin frequency point is to have begun search condition；

Step 3.5: each thread independence search thread searches for audio-video pid information in all pmt table lattice and parsing pmt table lattice, It updates in corresponding program database, the search thread is exited when all frequency points, which are all searched for, to be finished.