CN103533437A - Method and device for switching channels of smart television - Google Patents
Method and device for switching channels of smart television Download PDFInfo
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- CN103533437A CN103533437A CN201310530966.1A CN201310530966A CN103533437A CN 103533437 A CN103533437 A CN 103533437A CN 201310530966 A CN201310530966 A CN 201310530966A CN 103533437 A CN103533437 A CN 103533437A
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Abstract
The invention discloses a method and a device for switching channels of a smart television. The method comprises the following steps: responding to a channel switching command used to switch a currently played first channel to a pre-played second channel, preprocessing stream media data of the second channel, when preprocessing the stream media data of the second channel, continuously playing the stream media data of the first channel, after preprocessing, when the stream media data of the second channel meet the initial playing conditions, stopping playing the stream media data of the first channel, and beginning to play the stream media data of the second channel. In this way, when a user switches the television channels, the smart television can preprocess the stream media data of the second channel while continuously playing the stream media data of the first channel, stop playing the stream media data of the first channel when the preprocessed stream media data of the second channel meet the initial playing conditions, and begin to play the stream media data of the second channel. Therefore, the method can avoid the situation that the television is paused and in black screen state, and can promote the user experience.
Description
Technical field
The application relates to intelligent television field, particularly a kind of channel switching method of intelligent television and device.
Background technology
Along with the raising of people's living standard, intelligent television popularity rate is in the family increasingly extensive, and the trend that substitutes traditional tv is more and more stronger, and intelligent television plays more and more important effect in people's daily leisure and entertainment life.
At present, intelligent television is mostly with online playing network video or receive the function of web channel, and user can be by network program request Internet video or watch online web channel (" online web channel " is also referred to as " carousel channel ") of intelligent television.When user wishes the carousel channel of selection oneself hobby from numerous carousel channels, the same with traditional television channel selection mode, if intelligent television is being play the video content of some carousel channels, and user is while wanting to watch the video content of other carousel channel, user by press on remote controller up and down or left and right press key, by the control of remote controller, intelligent television can be switched to another carousel channel from a carousel channel.
But, in realizing process of the present invention, the present inventor finds that in prior art, at least there are the following problems: existing intelligent television can not be realized the quick switching of carousel channel, this problem shows conventionally: when user presses after remote keying, intelligent television longer a period of time of can pausing just can be switched to another carousel channel, and pause during this period of time in, intelligent television is in blank screen state.That is to say, user need to wait for that the very long one blank screen period just can watch the video content of next carousel channel, and this certainly will cause user's experience not good.
Summary of the invention
For the problems referred to above, the invention provides a kind of channel switching method and device of intelligent television, so that user when switching TV channel, avoids pause and the blank screen state of TV, promote user and experience.
Based on above-mentioned purpose, the technical scheme that the application provides is as follows:
A channel switching method for intelligent television, comprising:
In response to the first channel from current broadcasting, be switched to the channel switching instruction of the second channel of pre-broadcasting, the stream medium data of the second channel described in preliminary treatment;
In the stream medium data of the second channel described in preliminary treatment, continue to play the stream medium data of described the first channel;
When after preliminary treatment, when the stream medium data of described the second channel meets initial play condition, stop playing the stream medium data of described the first channel, and start to play the stream medium data of described the second channel.
Preferably, the described channel switching instruction that is switched to the second channel of pre-broadcasting in response to the first channel from current broadcasting, the stream medium data of the second channel described in preliminary treatment, specifically comprises:
In the process that reads the stream medium data of the first channel after demodulation and play from the first buffer area, in response to the first channel from current broadcasting, be switched to the channel switching instruction of the second channel of pre-broadcasting, the stream medium data of the second channel described in demodulation;
By the streaming media data cache of described the second channel after demodulation to the second buffer area.
Preferably, the stream medium data of described the first channel is play in described continuation, specifically comprises:
Buffer memory rate according to described the second buffer area, calculating makes the data volume of stream medium data of described second channel of described the second buffer area buffer memory meet the pretreatment time of initial play condition, and, the playback rate of the stream medium data of described the first channel of foundation, calculating is when receiving described channel switching instruction, and in described the first buffer area, the stream medium data of remaining described the first channel can reproduction time;
Judge described pretreatment time whether be greater than described can reproduction time;
When described pretreatment time is greater than described can reproduction time time, the stream medium data of the first channel described in continuation demodulation, the streaming media data cache of described the first channel after demodulation, to described the first buffer area, is read to the stream medium data of described the first channel after demodulation and plays from described the first buffer area;
When described pretreatment time is less than or equal to describedly can reproduction time time, stop the stream medium data of the first channel described in demodulation, only from described the first buffer area, read the stream medium data of remaining described the first channel and play.
Preferably, described when after preliminary treatment, when the stream medium data of described the second channel meets initial play condition, stop playing the stream medium data of described the first channel, and start to play the stream medium data of described the second channel, specifically comprise:
Judgement is after preliminary treatment, and whether the data volume that is buffered in the stream medium data of described the second channel after the demodulation in described the second buffer area meets initial play condition;
When the data volume of the stream medium data of described the second channel after the demodulation in being buffered in described the second buffer area meets initial play condition, stop reading the stream medium data of described the first channel after demodulation and the stream medium data that stops playing described the first channel from described the first buffer area, and start to read the stream medium data of described the second channel after demodulation and the stream medium data that starts to play described the second channel from described the second buffer area.
Preferably, at the described stream medium data that stops playing described the first channel, and after starting to play the stream medium data of described the second channel, the method also comprises:
To being buffered in the stream medium data of described the first channel after the demodulation in described the first buffer area, discharge.
The application also provides a kind of channel switching mechanism of intelligent television, comprising:
Pretreatment module, is switched to the channel switching instruction of the second channel of pre-broadcasting for the first channel in response to from current broadcasting, the stream medium data of the second channel described in preliminary treatment;
The first channel playing module, in the stream medium data at the second channel described in preliminary treatment, continues to play the stream medium data of described the first channel;
The second channel playing module, for when after preliminary treatment, when the stream medium data of described the second channel meets initial play condition, stops playing the stream medium data of described the first channel, and starts to play the stream medium data of described the second channel.
Preferably, described pretreatment module comprises:
The first demodulation submodule, for the stream medium data of the first channel of the current broadcasting of demodulation;
The first cache sub-module, for by the streaming media data cache of described the first channel after demodulation to the first buffer area, for the first channel playing module, read and play;
The second demodulation submodule, in the process that reads the stream medium data of described the first channel demodulation at described the first channel playing module from described the first buffer area and play, in response to the first channel from current broadcasting, be switched to the channel switching instruction of the second channel of pre-broadcasting, the stream medium data of the second channel described in demodulation;
The second cache sub-module, for by the streaming media data cache of described the second channel after demodulation to the second buffer area, for the second channel playing module, read and play.
Preferably, described the first channel playing module comprises:
Calculating sub module, for the buffer memory rate according to described the second buffer area, calculating makes the data volume of stream medium data of described second channel of described the second buffer area buffer memory meet the pretreatment time of initial play condition, and, the playback rate of the stream medium data of described the first channel of foundation, calculating is when receiving described channel switching instruction, and in described the first buffer area, the stream medium data of remaining described the first channel can reproduction time;
Time judgement submodule, for judge described pretreatment time whether be greater than described can reproduction time;
The first implementation sub-module, for when can reproduction time described in described pretreatment time is greater than, the stream medium data of the first channel described in continuation demodulation, the streaming media data cache of described the first channel after demodulation, to described the first buffer area, is read to the stream medium data of described the first channel after demodulation and plays from described the first buffer area;
The second implementation sub-module, for when can reproduction time described in described pretreatment time is less than or equal to, stop the stream medium data of the first channel described in demodulation, only from described the first buffer area, read the stream medium data of remaining described the first channel and play.
Preferably, described the second channel playing module comprises:
Condition judgment submodule, for judgement, after preliminary treatment, whether the data volume that is buffered in the stream medium data of described the second channel after the demodulation in described the second buffer area meets initial play condition;
Control submodule, while meeting initial play condition for the data volume of the stream medium data of described the second channel after the demodulation that is buffered in described the second buffer area, stop reading the stream medium data of described the first channel after demodulation and the stream medium data that stops playing described the first channel from described the first buffer area, and start to read the stream medium data of described the second channel after demodulation and the stream medium data that starts to play described the second channel from described the second buffer area.
Preferably, described device also comprises:
Release module, for stop playing the stream medium data of described the first channel at described the second channel playing module, and after starting to play the stream medium data of described the second channel, to being buffered in the stream medium data of described the first channel after the demodulation in described the first buffer area, discharge.
Application technique scheme, the channel switching method of the intelligent television that the application provides and device, when user presses remote keying, when transmission is switched to the channel switching instruction of the second channel of pre-broadcasting from the first channel of current broadcasting, in response to this channel switching instruction, the stream medium data of the second channel described in preliminary treatment; And in the stream medium data of the second channel described in preliminary treatment, continue to play the stream medium data of described the first channel; When after preliminary treatment, when the stream medium data of described the second channel meets initial play condition, stop playing the stream medium data of described the first channel, and start to play the stream medium data of described the second channel.Can make like this user when switching TV channel, the stream medium data of intelligent television preliminary treatment on one side the second channel, continue to play the stream medium data of the first channel on one side, when the stream medium data of pretreated the second channel meets initial play condition, stop again playing the stream medium data of the first channel, start to play the stream medium data of the second channel, can avoid like this TV to seize up and blank screen state, promote user and experience.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The schematic flow sheet of the channel switching method of a kind of intelligent television that Fig. 1 provides for the application;
A kind of channel switching instruction that is switched to the second channel of pre-broadcasting in response to the first channel from current broadcasting that Fig. 2 provides for the application, the schematic flow sheet of the method for the stream medium data of the second channel described in preliminary treatment;
Fig. 3 for the application provide a kind of in the stream medium data of the second channel described in preliminary treatment, continue to play the schematic flow sheet of method of the stream medium data of described the first channel;
Fig. 4 for the application provide a kind of when after preliminary treatment, when the stream medium data of described the second channel meets initial play condition, stop playing the stream medium data of described the first channel, and start to play the schematic flow sheet of method of the stream medium data of described the second channel;
The schematic flow sheet of the method that the channel of the another kind of intelligent television that Fig. 5 provides for the application switches;
The structural representation of the channel switching mechanism of a kind of intelligent television that Fig. 6 provides for the application;
The structural representation of a kind of pretreatment module that Fig. 7 provides for the application;
The structural representation of a kind of the first channel playing module that Fig. 8 provides for the application;
The structural representation of a kind of the second channel playing module that Fig. 9 provides for the application;
The structural representation of the another kind of channel switching mechanism that Figure 10 provides for the application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
In the prior art, when user presses remote keying, send after channel switching instruction, intelligent television longer a period of time of can pausing just can be switched to another channel, and pause during this period of time in, intelligent television is in blank screen state.That is to say, intelligent television can not be realized the quick switching of channel, and user need to wait for that the very long one blank screen period just can watch the video content of next channel, and this certainly will cause user's experience not good.
One of main thought of the present invention can comprise: when user presses remote keying, when transmission is switched to the channel switching instruction of the second channel of pre-broadcasting from the first channel of current broadcasting, in response to this channel switching instruction, the stream medium data of intelligent television preliminary treatment on one side the second channel, continue to play the stream medium data of the first channel on one side, when the stream medium data of pretreated the second channel meets initial play condition, stop again playing the stream medium data of the first channel, start to play the stream medium data of the second channel, can avoid like this TV to seize up and blank screen state, promoting user experiences.
Below, will the application's scheme be done to concrete elaboration by specific embodiment:
Embodiment mono-:
The schematic flow sheet of the channel switching method of a kind of intelligent television that Fig. 1 provides for the application.
Please refer to shown in Fig. 1, the channel switching method of a kind of intelligent television that the embodiment of the present application provides, comprising:
S100: be switched to the channel switching instruction of the second channel of pre-broadcasting in response to the first channel from current broadcasting, the stream medium data of the second channel described in preliminary treatment;
When user presses remote keying, when transmission is switched to the channel switching instruction of the second channel of pre-broadcasting from the first channel of current broadcasting, in response to this channel switching instruction, intelligent television can be prepared for playing the stream medium data of the second channel at once, namely starts the stream medium data of preliminary treatment the second channel.
S200: in the stream medium data of the second channel described in preliminary treatment, continue to play the stream medium data of described the first channel;
In the prior art, when intelligent television receives channel switching instruction, can first stop playing the stream medium data of the first channel, then just can prepare for playing the stream medium data of the second channel, namely start the stream medium data of preliminary treatment the second channel, the preliminary treatment here comprises: the signal that receives the second channel, the stream medium data the buffer memory that from the signal of the second channel, demodulate the second channel get off, while only having the data volume of buffer memory to meet certain requirement, just mean pretreated completing, just can start to play the stream medium data of the second channel, and start until play this section of pretreatment time between the second channel from stopping playing the first channel, TV seizes up and blank screen state.
In the embodiment of the present application, when user presses remote keying, when transmission is switched to the channel switching instruction of the second channel of pre-broadcasting from the first channel of current broadcasting, in response to this channel switching instruction, the stream medium data of intelligent television preliminary treatment on one side the second channel, continue to play the stream medium data of the first channel on one side, TV can not pause and blank screen like this, also can not affect the preprocessing process to the stream medium data of the second channel.
S300: when after preliminary treatment, when the stream medium data of described the second channel meets initial play condition, stop playing the stream medium data of described the first channel, and start to play the stream medium data of described the second channel.
Here, initial play condition refers to that the data volume of buffer memory can meet the Minimum requirements amount that starts broadcasting, or the data volume of buffer memory can meet the shortest time requirement that starts broadcasting for the time of playing, such as the data volume of buffer memory can be for the time of playing 5～30 seconds, to can continue to cushion the follow-up data that will play when playing these 5～30 seconds, avoid just starting to play just having soon Ka Dun or the situation appearance of buffered data again.
In the embodiment of the present application, when after preliminary treatment, when the stream medium data of described the second channel meets initial play condition, stop playing the stream medium data of described the first channel, and start to play the stream medium data of described the second channel, can guarantee like this this section of pretreatment time at the stream medium data of preliminary treatment the second channel, TV continues to play the stream medium data of the first channel, after pretreatment time completes, TV switches the stream medium data of playing the second channel at once, can effectively eliminate or shorten pause and the blank screen state of TV when switching channels.
The technical scheme that application the embodiment of the present application provides, when user presses remote keying, when transmission is switched to the channel switching instruction of the second channel of pre-broadcasting from the first channel of current broadcasting, in response to this channel switching instruction, the stream medium data of the second channel described in preliminary treatment; And in the stream medium data of the second channel described in preliminary treatment, continue to play the stream medium data of described the first channel; When after preliminary treatment, when the stream medium data of described the second channel meets initial play condition, stop playing the stream medium data of described the first channel, and start to play the stream medium data of described the second channel.Can make like this user when switching TV channel, the stream medium data of intelligent television preliminary treatment on one side the second channel, continue to play the stream medium data of the first channel on one side, when the stream medium data of pretreated the second channel meets initial play condition, stop again playing the stream medium data of the first channel, start to play the stream medium data of the second channel, can avoid like this TV to seize up and blank screen state, promote user and experience.
Embodiment bis-:
A kind of channel switching instruction that is switched to the second channel of pre-broadcasting in response to the first channel from current broadcasting that Fig. 2 provides for the application, the schematic flow sheet of the method for the stream medium data of the second channel described in preliminary treatment.
Please refer to shown in Fig. 2, on the basis of the channel switching method providing at embodiment mono-, the method that the embodiment of the present application provides, specifically comprises:
S101: in the process that reads the stream medium data of the first channel after demodulation and play from the first buffer area, in response to the first channel from current broadcasting, be switched to the channel switching instruction of the second channel of pre-broadcasting, the stream medium data of the second channel described in demodulation;
S102: by the streaming media data cache of described the second channel after demodulation to the second buffer area.
In the embodiment of the present application, the preliminary treatment here similarly to the prior art, comprising: receive the signal of the second channel, demodulate the stream medium data of the second channel and be cached in corresponding buffer area from the signal of the second channel.Different is, in the embodiment of the present application, be to the first buffer area by the streaming media data cache of in progress the first channel, by the streaming media data cache of the second channel of playing in advance to the second buffer area, and in other embodiment based on the application, the first buffer area and the second buffer area can be also the zones of different for buffer memory different pieces of information in same buffer area, and the embodiment of the present application is not done any restriction to this.
The technical scheme that application the embodiment of the present application provides, when user presses remote keying, when transmission is switched to the channel switching instruction of the second channel of pre-broadcasting from the first channel of current broadcasting, in response to this channel switching instruction, the stream medium data of the second channel described in preliminary treatment; And in the stream medium data of the second channel described in preliminary treatment, continue to play the stream medium data of described the first channel; When after preliminary treatment, when the stream medium data of described the second channel meets initial play condition, stop playing the stream medium data of described the first channel, and start to play the stream medium data of described the second channel.Can make like this user when switching TV channel, the stream medium data of intelligent television preliminary treatment on one side the second channel, continue to play the stream medium data of the first channel on one side, when the stream medium data of pretreated the second channel meets initial play condition, stop again playing the stream medium data of the first channel, start to play the stream medium data of the second channel, can avoid like this TV to seize up and blank screen state, promote user and experience.
Embodiment tri-:
Fig. 3 for the application provide a kind of in the stream medium data of the second channel described in preliminary treatment, continue to play the schematic flow sheet of method of the stream medium data of described the first channel.
Please refer to shown in Fig. 3, on the basis of above-described embodiment, the method that the embodiment of the present application provides, specifically comprises:
S201: according to the buffer memory rate of described the second buffer area, calculating makes the data volume of stream medium data of described second channel of described the second buffer area buffer memory meet the pretreatment time of initial play condition, and, the playback rate of the stream medium data of described the first channel of foundation, calculating is when receiving described channel switching instruction, and in described the first buffer area, the stream medium data of remaining described the first channel can reproduction time;
In preprocessing process, by the streaming media data cache of the second channel in the second buffer area, have corresponding buffer memory rate, according to the buffer memory rate of the second buffer area, just can obtain making data volume in the second buffer area to be not less than the cache-time of the data volume of initial play conditional request, namely pretreatment time.
In the process of stream medium data of playing the first channel, can be according to the playback rate of the stream medium data of the first channel, the reading rate of the data in the first buffer area namely, calculating is when receiving described channel switching instruction, and in the first buffer area, the stream medium data of remaining described the first channel can reproduction time.
S202: judge described pretreatment time whether be greater than described can reproduction time;
S203: when described pretreatment time is greater than described can reproduction time time, the stream medium data of the first channel described in continuation demodulation, the streaming media data cache of described the first channel after demodulation, to described the first buffer area, is read to the stream medium data of described the first channel after demodulation and plays from described the first buffer area;
Be understandable that, when the pretreatment time of the stream medium data of the second channel be greater than the first channel stream medium data can reproduction time time, mean when preliminary treatment does not also complete, in the first buffer area, the data volume of the stream medium data of remaining the first channel will play, need in this case to continue to wait for that preliminary treatment completes, TV also there will be pause and blank screen phenomenon, generation for fear of this phenomenon, in pretreated process, continue the stream medium data of buffer memory the first channel to the first buffer area, for maintaining the lasting broadcasting of the stream medium data of the first channel.
S204: when described pretreatment time is less than or equal to describedly can reproduction time time, stop the stream medium data of the first channel described in demodulation, only read the stream medium data of remaining described the first channel and play from described the first buffer area.
Be understandable that, when the pretreatment time of the stream medium data of the second channel be less than or equal to the first channel stream medium data can reproduction time time, mean when preliminary treatment completes, in the first buffer area, the data volume of the stream medium data of remaining the first channel does not also play, in this case if wait for that the data volume of the stream medium data of remaining the first channel in the first buffer area finishes playing, also need to continue to play the stream medium data of the first channel, and for fear of the permanent wait that allows user after carrying out channel handover operation, in this case, once pretreatment time completes, just make TV stop playing the stream medium data of the first channel at once, start to play the stream medium data of the second channel.
The technical scheme that application the embodiment of the present application provides, the pretreatment time of stream medium data that can be by the second channel and the stream medium data of the first channel can reproduction time comparison, judgement is in the process of the stream medium data of preliminary treatment the second channel, also need to continue the stream medium data of buffer memory the first channel, so both can when the stream medium data without continuing buffer memory the first channel, save the resource of System and Network bandwidth, can in the time need to continuing the stream medium data of buffer memory the first channel, avoid again TV to seize up and blank screen state, promoting user experiences.
Embodiment tetra-:
Fig. 4 for the application provide a kind of when after preliminary treatment, when the stream medium data of described the second channel meets initial play condition, stop playing the stream medium data of described the first channel, and start to play the schematic flow sheet of method of the stream medium data of described the second channel.
Please refer to shown in Fig. 4, on the basis of above-described embodiment, the method that the embodiment of the present application provides, specifically comprises:
S301: judgement is after preliminary treatment, and whether the data volume that is buffered in the stream medium data of described the second channel after the demodulation in described the second buffer area meets initial play condition;
S302: when the data volume of the stream medium data of described the second channel after the demodulation in being buffered in described the second buffer area meets initial play condition, stop reading the stream medium data of described the first channel after demodulation and the stream medium data that stops playing described the first channel from described the first buffer area, and start to read the stream medium data of described the second channel after demodulation and the stream medium data that starts to play described the second channel from described the second buffer area.
Here, initial play condition refers to that the data volume of buffer memory can meet the Minimum requirements amount that starts broadcasting, or the data volume of buffer memory can meet the shortest time requirement that starts broadcasting for the time of playing, such as the data volume of buffer memory can be for the time of playing 5～30 seconds, to can continue to cushion the follow-up data that will play when playing these 5～30 seconds, avoid just starting to play just having soon Ka Dun or the situation appearance of buffered data again.
In the embodiment of the present application, when process is carried out demodulation to the stream medium data of the second channel, after the preliminary treatment such as buffer memory, when the data volume that is buffered in the stream medium data of described the second channel after the demodulation in described the second buffer area meets initial play condition, stop reading the stream medium data of described the first channel after demodulation and the stream medium data that stops playing described the first channel from described the first buffer area, and the stream medium data of described the second channel after demodulation and the stream medium data that starts to play described the second channel are read in beginning from described the second buffer area, can guarantee like this this section of pretreatment time at the stream medium data of preliminary treatment the second channel, TV continues to play the stream medium data of the first channel, after pretreatment time completes, TV switches the stream medium data of playing the second channel at once, can effectively eliminate or shorten pause and the blank screen state of TV when switching channels.
The technical scheme that application the embodiment of the present application provides, when user presses remote keying, when transmission is switched to the channel switching instruction of the second channel of pre-broadcasting from the first channel of current broadcasting, in response to this channel switching instruction, the stream medium data of the second channel described in preliminary treatment; And in the stream medium data of the second channel described in preliminary treatment, continue to play the stream medium data of described the first channel; When after preliminary treatment, when the stream medium data of described the second channel meets initial play condition, stop playing the stream medium data of described the first channel, and start to play the stream medium data of described the second channel.Can make like this user when switching TV channel, the stream medium data of intelligent television preliminary treatment on one side the second channel, continue to play the stream medium data of the first channel on one side, when the stream medium data of pretreated the second channel meets initial play condition, stop again playing the stream medium data of the first channel, start to play the stream medium data of the second channel, can avoid like this TV to seize up and blank screen state, promote user and experience.
Embodiment five:
The schematic flow sheet of the method that the channel of the another kind of intelligent television that Fig. 5 provides for the application switches.
Please refer to shown in Fig. 5, on the basis of above-mentioned all embodiment, the channel switching method that the application provides, at the described stream medium data that stops playing described the first channel, and after starting to play the stream medium data of described the second channel, can also comprise:
S400: discharge being buffered in the stream medium data of described the first channel after the demodulation in described the first buffer area.
In the embodiment of the present application, in process, the stream medium data of the second channel is carried out to demodulation, after the preliminary treatment such as buffer memory, when the data volume that is buffered in the stream medium data of described the second channel after the demodulation in described the second buffer area meets initial play condition, stop reading the stream medium data of described the first channel after demodulation and the stream medium data that stops playing described the first channel from described the first buffer area, and after starting to read the stream medium data of described the second channel after demodulation and start to play the stream medium data of described the second channel from described the second buffer area, need to discharge the stream medium data that is buffered in described the first channel after the demodulation in described the first buffer area of playing before.Can save system resource like this, and be convenient to without expending time in again, empty the first buffer area with resource when upper once switching channels, the stream medium data of other channel of preliminary treatment can will begin in a minute, mitigation system burden, accelerate system response time, reduce the stand-by period after user's switching channels, further promote user and experience.
Embodiment six:
The structural representation of the channel switching mechanism of a kind of intelligent television that Fig. 6 provides for the application.
Please refer to shown in Fig. 6, the channel switching mechanism that the embodiment of the present application provides, comprising:
Pretreatment module 1, is switched to the channel switching instruction of the second channel of pre-broadcasting for the first channel in response to from current broadcasting, the stream medium data of the second channel described in preliminary treatment;
When user presses remote keying, remote controller sends while being switched to the channel switching instruction of the second channel of pre-broadcasting from the first channel of current broadcasting, pretreatment module 1 is in response to this channel switching instruction, intelligent television can be prepared for playing the stream medium data of the second channel at once, namely starts the stream medium data of preliminary treatment the second channel.
The first channel playing module 2, in the stream medium data at the second channel described in preliminary treatment, continues to play the stream medium data of described the first channel;
In the prior art, when intelligent television receives channel switching instruction, can first stop playing the stream medium data of the first channel, then just can prepare for playing the stream medium data of the second channel, namely start the stream medium data of preliminary treatment the second channel, the preliminary treatment here comprises: the signal that receives the second channel, the stream medium data the buffer memory that from the signal of the second channel, demodulate the second channel get off, while only having the data volume of buffer memory to meet certain requirement, just mean pretreated completing, just can start to play the stream medium data of the second channel, and start until play this section of pretreatment time between the second channel from stopping playing the first channel, TV seizes up and blank screen state.
In the embodiment of the present application, when user presses remote keying, remote controller sends while being switched to the channel switching instruction of the second channel of pre-broadcasting from the first channel of current broadcasting, in response to this channel switching instruction, the stream medium data of intelligent television preliminary treatment on one side the second channel, continue to play the stream medium data of the first channel on one side, TV can not pause and blank screen like this, also can not affect the preprocessing process to the stream medium data of the second channel.
The second channel playing module 3, for when after preliminary treatment, when the stream medium data of described the second channel meets initial play condition, stops playing the stream medium data of described the first channel, and starts to play the stream medium data of described the second channel.
Here, initial play condition refers to that the data volume of buffer memory can meet the Minimum requirements amount that starts broadcasting, or the data volume of buffer memory can meet the shortest time requirement that starts broadcasting for the time of playing, such as the data volume of buffer memory can be for the time of playing 5～30 seconds, to can continue to cushion the follow-up data that will play when playing these 5～30 seconds, avoid just starting to play just having soon Ka Dun or the situation appearance of buffered data again.
In the embodiment of the present application, when after preliminary treatment, when the stream medium data of described the second channel meets initial play condition, the second channel playing module 3 stops playing the stream medium data of described the first channel, and start to play the stream medium data of described the second channel, can guarantee like this this section of pretreatment time at the stream medium data of preliminary treatment the second channel, TV continues to play the stream medium data of the first channel, after pretreatment time completes, TV switches the stream medium data of playing the second channel at once, can effectively eliminate or shorten pause and the blank screen state of TV when switching channels.
The technical scheme that application the embodiment of the present application provides, when user presses remote keying, when transmission is switched to the channel switching instruction of the second channel of pre-broadcasting from the first channel of current broadcasting, in response to this channel switching instruction, the stream medium data of the second channel described in preliminary treatment; And in the stream medium data of the second channel described in preliminary treatment, continue to play the stream medium data of described the first channel; When after preliminary treatment, when the stream medium data of described the second channel meets initial play condition, stop playing the stream medium data of described the first channel, and start to play the stream medium data of described the second channel.Can make like this user when switching TV channel, the stream medium data of intelligent television preliminary treatment on one side the second channel, continue to play the stream medium data of the first channel on one side, when the stream medium data of pretreated the second channel meets initial play condition, stop again playing the stream medium data of the first channel, start to play the stream medium data of the second channel, can avoid like this TV to seize up and blank screen state, promote user and experience.
Embodiment seven:
The structural representation of a kind of pretreatment module that Fig. 7 provides for the application.
Please refer to shown in Fig. 7, the pretreatment module that the embodiment of the present application provides, specifically comprises:
The first demodulation submodule 11, for the stream medium data of the first channel of the current broadcasting of demodulation;
The first cache sub-module 12, for by the streaming media data cache of described the first channel after demodulation to the first buffer area, for the first channel playing module, read and play;
The second demodulation submodule 13, in the process that reads the stream medium data of described the first channel demodulation at described the first channel playing module from described the first buffer area and play, in response to the first channel from current broadcasting, be switched to the channel switching instruction of the second channel of pre-broadcasting, the stream medium data of the second channel described in demodulation;
The second cache sub-module 14, for by the streaming media data cache of described the second channel after demodulation to the second buffer area, for the second channel playing module, read and play.
In the embodiment of the present application, the preliminary treatment of the pretreatment module here similarly to the prior art, comprising: receive the signal of the second channel, demodulate the stream medium data of the second channel and be cached in corresponding buffer area from the signal of the second channel.Different is, in the embodiment of the present application, be to the first buffer area by the streaming media data cache of in progress the first channel, by the streaming media data cache of the second channel of playing in advance to the second buffer area, and in other embodiment based on the application, the first buffer area and the second buffer area can be also the zones of different for buffer memory different pieces of information in same buffer area, and the embodiment of the present application is not done any restriction to this.
The technical scheme that application the embodiment of the present application provides, when user presses remote keying, when transmission is switched to the channel switching instruction of the second channel of pre-broadcasting from the first channel of current broadcasting, in response to this channel switching instruction, the stream medium data of the second channel described in preliminary treatment; And in the stream medium data of the second channel described in preliminary treatment, continue to play the stream medium data of described the first channel; When after preliminary treatment, when the stream medium data of described the second channel meets initial play condition, stop playing the stream medium data of described the first channel, and start to play the stream medium data of described the second channel.Can make like this user when switching TV channel, the stream medium data of intelligent television preliminary treatment on one side the second channel, continue to play the stream medium data of the first channel on one side, when the stream medium data of pretreated the second channel meets initial play condition, stop again playing the stream medium data of the first channel, start to play the stream medium data of the second channel, can avoid like this TV to seize up and blank screen state, promote user and experience.
Embodiment eight:
The structural representation of a kind of the first channel playing module that Fig. 8 provides for the application.
Please refer to shown in Fig. 8, the first channel playing module that the embodiment of the present application provides, specifically comprises:
Calculating sub module 21, for the buffer memory rate according to described the second buffer area, calculating makes the data volume of stream medium data of described second channel of described the second buffer area buffer memory meet the pretreatment time of initial play condition, and, the playback rate of the stream medium data of described the first channel of foundation, calculating is when receiving described channel switching instruction, and in described the first buffer area, the stream medium data of remaining described the first channel can reproduction time;
In preprocessing process, by the streaming media data cache of the second channel in the second buffer area, have corresponding buffer memory rate, according to the buffer memory rate of the second buffer area, just can obtain making data volume in the second buffer area to be not less than the cache-time of the data volume of initial play conditional request, namely pretreatment time.
In the process of stream medium data of playing the first channel, can be according to the playback rate of the stream medium data of the first channel, the reading rate of the data in the first buffer area namely, calculating is when receiving described channel switching instruction, and in the first buffer area, the stream medium data of remaining described the first channel can reproduction time.
The first implementation sub-module 23, for when can reproduction time described in described pretreatment time is greater than, the stream medium data of the first channel described in continuation demodulation, the streaming media data cache of described the first channel after demodulation, to described the first buffer area, is read to the stream medium data of described the first channel after demodulation and plays from described the first buffer area;
Be understandable that, when the pretreatment time of the stream medium data of the second channel be greater than the first channel stream medium data can reproduction time time, mean when preliminary treatment does not also complete, in the first buffer area, the data volume of the stream medium data of remaining the first channel will play, need in this case to continue to wait for that preliminary treatment completes, TV also there will be pause and blank screen phenomenon, generation for fear of this phenomenon, in pretreated process, continue the stream medium data of buffer memory the first channel to the first buffer area, for maintaining the lasting broadcasting of the stream medium data of the first channel.
The second implementation sub-module 24, for when can reproduction time described in described pretreatment time is less than or equal to, stop the stream medium data of the first channel described in demodulation, only from described the first buffer area, read the stream medium data of remaining described the first channel and play.
Be understandable that, when the pretreatment time of the stream medium data of the second channel be less than or equal to the first channel stream medium data can reproduction time time, mean when preliminary treatment completes, in the first buffer area, the data volume of the stream medium data of remaining the first channel does not also play, in this case if wait for that the data volume of the stream medium data of remaining the first channel in the first buffer area finishes playing, also need to continue to play the stream medium data of the first channel, and for fear of the permanent wait that allows user after carrying out channel handover operation, in this case, once pretreatment time completes, just make TV stop playing the stream medium data of the first channel at once, start to play the stream medium data of the second channel.
The technical scheme that application the embodiment of the present application provides, the pretreatment time of stream medium data that can be by the second channel and the stream medium data of the first channel can reproduction time comparison, judgement is in the process of the stream medium data of preliminary treatment the second channel, also need to continue the stream medium data of buffer memory the first channel, so both can when the stream medium data without continuing buffer memory the first channel, save the resource of System and Network bandwidth, can in the time need to continuing the stream medium data of buffer memory the first channel, avoid again TV to seize up and blank screen state, promoting user experiences.
Embodiment nine:
The structural representation of a kind of the second channel playing module that Fig. 9 provides for the application.
Please refer to shown in Fig. 9, the second channel playing module that the embodiment of the present application provides, specifically comprises:
Here, initial play condition refers to that the data volume of buffer memory can meet the Minimum requirements amount that starts broadcasting, or the data volume of buffer memory can meet the shortest time requirement that starts broadcasting for the time of playing, such as the data volume of buffer memory can be for the time of playing 5～30 seconds, to can continue to cushion the follow-up data that will play when playing these 5～30 seconds, avoid just starting to play just having soon Ka Dun or the situation appearance of buffered data again.
In the embodiment of the present application, when process is carried out demodulation to the stream medium data of the second channel, after the preliminary treatment such as buffer memory, when the data volume that is buffered in the stream medium data of described the second channel after the demodulation in described the second buffer area meets initial play condition, stop reading the stream medium data of described the first channel after demodulation and the stream medium data that stops playing described the first channel from described the first buffer area, and the stream medium data of described the second channel after demodulation and the stream medium data that starts to play described the second channel are read in beginning from described the second buffer area, can guarantee like this this section of pretreatment time at the stream medium data of preliminary treatment the second channel, TV continues to play the stream medium data of the first channel, after pretreatment time completes, TV switches the stream medium data of playing the second channel at once, can effectively eliminate or shorten pause and the blank screen state of TV when switching channels.
The technical scheme that application the embodiment of the present application provides, when user presses remote keying, when transmission is switched to the channel switching instruction of the second channel of pre-broadcasting from the first channel of current broadcasting, in response to this channel switching instruction, the stream medium data of the second channel described in preliminary treatment; And in the stream medium data of the second channel described in preliminary treatment, continue to play the stream medium data of described the first channel; When after preliminary treatment, when the stream medium data of described the second channel meets initial play condition, stop playing the stream medium data of described the first channel, and start to play the stream medium data of described the second channel.Can make like this user when switching TV channel, the stream medium data of intelligent television preliminary treatment on one side the second channel, continue to play the stream medium data of the first channel on one side, when the stream medium data of pretreated the second channel meets initial play condition, stop again playing the stream medium data of the first channel, start to play the stream medium data of the second channel, can avoid like this TV to seize up and blank screen state, promote user and experience.
Embodiment ten:
The structural representation of the another kind of channel switching mechanism that Figure 10 provides for the application.
Please refer to shown in Figure 10, the channel switching mechanism that the embodiment of the present application provides, also comprises:
In the embodiment of the present application, in process, the stream medium data of the second channel is carried out to demodulation, after the preliminary treatment such as buffer memory, when the data volume that is buffered in the stream medium data of described the second channel after the demodulation in described the second buffer area meets initial play condition, stop reading the stream medium data of described the first channel after demodulation and the stream medium data that stops playing described the first channel from described the first buffer area, and after starting to read the stream medium data of described the second channel after demodulation and start to play the stream medium data of described the second channel from described the second buffer area, need to discharge the stream medium data that is buffered in described the first channel after the demodulation in described the first buffer area of playing before.Can save system resource like this, and be convenient to without expending time in again, empty the first buffer area with resource when upper once switching channels, the stream medium data of other channel of preliminary treatment can will begin in a minute, mitigation system burden, accelerate system response time, reduce the stand-by period after user's switching channels, further promote user and experience.
It should be noted that, each embodiment in this specification all adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.For device class embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, relevant part is referring to the part explanation of embodiment of the method.
Finally, also it should be noted that, in this article, relational terms such as the first and second grades is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply and between these entities or operation, have the relation of any this reality or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
Above the channel switching method of a kind of intelligent television provided by the present invention and device are described in detail, applied specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.
Claims (10)
1. a channel switching method for intelligent television, is characterized in that, the method comprises:
In response to the first channel from current broadcasting, be switched to the channel switching instruction of the second channel of pre-broadcasting, the stream medium data of the second channel described in preliminary treatment;
In the stream medium data of the second channel described in preliminary treatment, continue to play the stream medium data of described the first channel;
When after preliminary treatment, when the stream medium data of described the second channel meets initial play condition, stop playing the stream medium data of described the first channel, and start to play the stream medium data of described the second channel.
2. channel switching method according to claim 1, is characterized in that, the described channel switching instruction that is switched to the second channel of pre-broadcasting in response to the first channel from current broadcasting, and the stream medium data of the second channel described in preliminary treatment, specifically comprises:
In the process that reads the stream medium data of the first channel after demodulation and play from the first buffer area, in response to the first channel from current broadcasting, be switched to the channel switching instruction of the second channel of pre-broadcasting, the stream medium data of the second channel described in demodulation;
By the streaming media data cache of described the second channel after demodulation to the second buffer area.
3. channel switching method according to claim 2, is characterized in that, the stream medium data of described the first channel is play in described continuation, specifically comprises:
Buffer memory rate according to described the second buffer area, calculating makes the data volume of stream medium data of described second channel of described the second buffer area buffer memory meet the pretreatment time of initial play condition, and, the playback rate of the stream medium data of described the first channel of foundation, calculating is when receiving described channel switching instruction, and in described the first buffer area, the stream medium data of remaining described the first channel can reproduction time;
Judge described pretreatment time whether be greater than described can reproduction time;
When described pretreatment time is greater than described can reproduction time time, the stream medium data of the first channel described in continuation demodulation, the streaming media data cache of described the first channel after demodulation, to described the first buffer area, is read to the stream medium data of described the first channel after demodulation and plays from described the first buffer area;
When described pretreatment time is less than or equal to describedly can reproduction time time, stop the stream medium data of the first channel described in demodulation, only from described the first buffer area, read the stream medium data of remaining described the first channel and play.
4. channel switching method according to claim 2, it is characterized in that, described when after preliminary treatment, when the stream medium data of described the second channel meets initial play condition, stop playing the stream medium data of described the first channel, and start to play the stream medium data of described the second channel, specifically comprise:
Judgement is after preliminary treatment, and whether the data volume that is buffered in the stream medium data of described the second channel after the demodulation in described the second buffer area meets initial play condition;
When the data volume of the stream medium data of described the second channel after the demodulation in being buffered in described the second buffer area meets initial play condition, stop reading the stream medium data of described the first channel after demodulation and the stream medium data that stops playing described the first channel from described the first buffer area, and start to read the stream medium data of described the second channel after demodulation and the stream medium data that starts to play described the second channel from described the second buffer area.
5. according to the channel switching method described in any one in claim 2 to 4, it is characterized in that, at the described stream medium data that stops playing described the first channel, and after starting to play the stream medium data of described the second channel, the method also comprises:
To being buffered in the stream medium data of described the first channel after the demodulation in described the first buffer area, discharge.
6. a channel switching mechanism for intelligent television, is characterized in that, this device comprises:
Pretreatment module, is switched to the channel switching instruction of the second channel of pre-broadcasting for the first channel in response to from current broadcasting, the stream medium data of the second channel described in preliminary treatment;
The first channel playing module, in the stream medium data at the second channel described in preliminary treatment, continues to play the stream medium data of described the first channel;
The second channel playing module, for when after preliminary treatment, when the stream medium data of described the second channel meets initial play condition, stops playing the stream medium data of described the first channel, and starts to play the stream medium data of described the second channel.
7. channel switching mechanism according to claim 6, is characterized in that, described pretreatment module comprises:
The first demodulation submodule, for the stream medium data of the first channel of the current broadcasting of demodulation;
The first cache sub-module, for by the streaming media data cache of described the first channel after demodulation to the first buffer area, for the first channel playing module, read and play;
The second demodulation submodule, in the process that reads the stream medium data of described the first channel demodulation at described the first channel playing module from described the first buffer area and play, in response to the first channel from current broadcasting, be switched to the channel switching instruction of the second channel of pre-broadcasting, the stream medium data of the second channel described in demodulation;
The second cache sub-module, for by the streaming media data cache of described the second channel after demodulation to the second buffer area, for the second channel playing module, read and play.
8. channel switching mechanism according to claim 7, is characterized in that, described the first channel playing module comprises:
Calculating sub module, for the buffer memory rate according to described the second buffer area, calculating makes the data volume of stream medium data of described second channel of described the second buffer area buffer memory meet the pretreatment time of initial play condition, and, the playback rate of the stream medium data of described the first channel of foundation, calculating is when receiving described channel switching instruction, and in described the first buffer area, the stream medium data of remaining described the first channel can reproduction time;
Time judgement submodule, for judge described pretreatment time whether be greater than described can reproduction time;
The first implementation sub-module, for when can reproduction time described in described pretreatment time is greater than, the stream medium data of the first channel described in continuation demodulation, the streaming media data cache of described the first channel after demodulation, to described the first buffer area, is read to the stream medium data of described the first channel after demodulation and plays from described the first buffer area;
The second implementation sub-module, for when can reproduction time described in described pretreatment time is less than or equal to, stop the stream medium data of the first channel described in demodulation, only from described the first buffer area, read the stream medium data of remaining described the first channel and play.
9. channel switching mechanism according to claim 7, is characterized in that, described the second channel playing module comprises:
Condition judgment submodule, for judgement, after preliminary treatment, whether the data volume that is buffered in the stream medium data of described the second channel after the demodulation in described the second buffer area meets initial play condition;
Control submodule, while meeting initial play condition for the data volume of the stream medium data of described the second channel after the demodulation that is buffered in described the second buffer area, stop reading the stream medium data of described the first channel after demodulation and the stream medium data that stops playing described the first channel from described the first buffer area, and start to read the stream medium data of described the second channel after demodulation and the stream medium data that starts to play described the second channel from described the second buffer area.
10. according to the channel switching mechanism described in any one in claim 7 to 9, it is characterized in that, described device also comprises:
Release module, for stop playing the stream medium data of described the first channel at described the second channel playing module, and after starting to play the stream medium data of described the second channel, to being buffered in the stream medium data of described the first channel after the demodulation in described the first buffer area, discharge.
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| CN201310530966.1A CN103533437A (en) | 2013-10-30 | 2013-10-30 | Method and device for switching channels of smart television |
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Application publication date: 20140122 |