The method of spot during a kind of set-top box blank screen
Technical field
The present invention relates to digital TV set-top box, the method for spot when relating in particular to a kind of set-top box blank screen.
Background technology
Along with the development of Digital Television, the application of digital TV set-top box constantly enlarges, and not only for digital cable customers brings unprecedented digitlization seeing and hearing enjoyment, has also brought limitless business opportunity and fine development prospect for the radio and TV operator of various places simultaneously.Then, some nontechnical reasons may cause the set-top box can't broadcast program, for example, user's digital television signal is too weak and even no signal, set-top box do not have that smart card, set-top box are not corresponding with smart card, smart card is regional does not make some program not have authority to watch or the like to, operator for the development of self.When nontechnical reason occurring and cause set-top box users to watch digital program, existing technical scheme is, closes audio frequency and video, ejects the message box that shows the inartful reason and is prompted to the user, and whole television image is in the state of blank screen simultaneously.This processing mode is not only wasted playing resource, even has caused the user to be unwilling to use set-top box to watch the situation of Digital Television because of disagreeableness interface produces.
Therefore, how when the inartful reason causes set-top box users to watch digital program, intercut other programs, providing friendly interface to the user is the technical problem that needs to be resolved hurrily of personnel in the industry.
Summary of the invention
The objective of the invention is to overcome above-mentioned problems of the prior art, the method for spot when proposing a kind of set-top box blank screen.
The technical scheme that the present invention takes is, the method for spot when proposing a kind of set-top box blank screen, and this method comprises the following steps:
S1, in the process of normal play program, set-top box is monitored any one incident that may influence the program normal play;
S2, when set-top box listens to this incident, judge that it whether can the normal play program, if then continue to play; If not, then change step S3 over to, intercut the appointment material;
S3, at first close the Voice ﹠ Video of current program, eject and describe the information indicating frame that causes this incident reason, judge again whether this incident is the incident that CA or operator initiate, in this way, then play the message box prompting that CA producer authenticates, or the content of operator's appointment; As denying the then intelligent appointment material of playing;
S4, play to specify in the process of material in intelligence, whether set-top box keeps monitoring the incident that influence the program normal play eliminates, and as not, then continues to play the appointment material; In this way otherwise change step S5 over to;
S5, stop play to specify material, open audio frequency and video, switch to normal play program on the program channel of original broadcast.
Compared with prior art, the method that the present invention proposes, can improve the utilance and the benefit of set-top box playing resource on the one hand to a great extent, can avoid set-top box users because of not watching current scrambled program on the other hand, can only see the blank screen prompting and the mood of being unwilling to continue to use set-top box broadcast Digital Television of generation.
Description of drawings
Below in conjunction with drawings and Examples to further instruction of the present invention, wherein:
Fig. 1 is the flow chart of the method for the present invention's proposition.
Embodiment
As shown in Figure 1, the present invention propose the set-top box blank screen time spot method comprise the following steps:
S1, in the process of normal play program, set-top box is monitored any one incident that may influence the program normal play;
S2, when set-top box listens to this incident, judge that it whether can the normal play program, if then continue to play; If not, then change step S3 over to, intercut the appointment material;
S3, at first close the Voice ﹠ Video of current program, eject and describe the information indicating frame that causes this incident reason, judge again whether this incident is the incident that CA (condition reception) or operator initiate, in this way, then play the message box prompting that CA producer authenticates, or the content of operator's appointment; As not, be the inartful incident that the set-top box external factor is initiated, as problems such as signals, then intelligence is play and is specified material;
Described appointment material can be the set-top box friendly television interfaces of making itself, also can show the information that some pre-establish, the picture of good visual effect is provided to the user, for example, useful knowledge in the usual life such as small key of life, healthy general knowledge, recipe, and the page turning of can constantly rolling.Can also comprise financial knowledge, or the public good short-movie.Can play easily joyful light music of a bit of people of allowing when picture is play simultaneously, the user is a kind of temporarily can't to watch digital television program even give, and also can obtain perfect audio frequency and video and enjoy.
S4, play to specify in the process of material in intelligence, whether set-top box keeps monitoring the incident that influence the program normal play eliminates, and as not, then continues to play the appointment material; In this way otherwise change step S5 over to;
S5, stop play to specify material, open audio frequency and video, switch to normal play program on the program channel of original broadcast.
The incident of CA initiation except making the same effect of intercutting with no signal of material, can also be play the programme information of operator's appointment according to the requirement of operator in this way.Can be that operator's front end regulation is changed station information, as frequency (frequency), symbol rate (rate), modulation system (modulate), audio frequency PID (audio pid), video PID (vedio pid), PID (pcr pid) waits the information of this 6 six aspect synchronously, when occurring can't the normal play program time, can require set-top box to force to change the program of platform to operator's appointment according to these information, comprise the broadcast public service ads, government notice, the content of operator's appointments such as existence general knowledge, thereby can continue to the digitized audio frequency and video effect of set-top box users, can also avoid the waste of playing resource, bring extra business opportunity to operator simultaneously.Certainly operator also can specify a playing programs according to information such as original network ID, TS stream ID and program numbers.
When set-top box owing to nontechnical reason causes can not the normal play program time, set-top box must have information to see to the user, so when smart inserting is specified material, should be noted that the information indicating frame can not cover by appointed material.Can handle like this during smart inserting: if specify material is the interface that set-top box itself is made, and then information indicating can be used as the title demonstration at interface; As to specify material be that Carrier Requirements is play, and the information indicating frame can be placed on a television image top position, so neither influences the effect that set-top box users continues enjoyment digitized video, also can satisfy the requirement of operator and CA producer.
The present invention when set-top box because of non-technical reason can not the normal play program time, can play the appointment material automatically, reduce or remove the blank screen state fully, do not influence the enjoyment of set-top box users digitlization audiovisual in the neutral time of being disturbed.