CN106534961A - Method for channel switching of network television and terminal - Google Patents
Method for channel switching of network television and terminal Download PDFInfo
- Publication number
- CN106534961A CN106534961A CN201611053275.7A CN201611053275A CN106534961A CN 106534961 A CN106534961 A CN 106534961A CN 201611053275 A CN201611053275 A CN 201611053275A CN 106534961 A CN106534961 A CN 106534961A
- Authority
- CN
- China
- Prior art keywords
- channel
- audio
- video information
- target channel
- target
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 45
- 230000032683 aging Effects 0.000 claims description 36
- 239000000284 extract Substances 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 description 24
- 238000012545 processing Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4383—Accessing a communication channel
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
- H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
- H04N21/42206—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor characterized by hardware details
- H04N21/4221—Dedicated function buttons, e.g. for the control of an EPG, subtitles, aspect ratio, picture-in-picture or teletext
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/44204—Monitoring of content usage, e.g. the number of times a movie has been viewed, copied or the amount which has been watched
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/482—End-user interface for program selection
- H04N21/4823—End-user interface for program selection using a channel name
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6125—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via Internet
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Databases & Information Systems (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The embodiment of the invention discloses a method for channel switching of a network television and a terminal. The method comprises the steps of determining a to-be-switched target channel based on a received channel switching instruction; judging whether video-audio information of the target channel exists in a preset channel information statistical table; when the video-audio information of the target channel exists in the video information statistical table, extracting the video-audio information of the target channel form the video information statistical table; and setting a decoding parameter of a decoder based on the video-audio information of the target channel. By adoption of the technical scheme provided by the invention, as the channel information statistical table is preset, and the decoding parameter of the decoder is set directly based on the video-audio information of the target channel stored in the channel information statistical table when the video-audio information of the target channel exists in the channel information statistical table, time taken for searching and analyzing a PAT table and a PMT table of the target channel is left out, and time delay of channel switching of the network television is accordingly reduced.
Description
Technical field
The present invention relates to IPTV (Internet Protocol Television, Web TV) technical field, particularly
It is related to the channel switching method and terminal of a kind of Web TV.
Background technology
With the popularization of broadband services, IPTV has obtained rapid development as a kind of new broadband interactive video traffic
And popularization.IPTV allows traditional telecom operators to be no longer limited to provide voice service and network broadband, and traditional wide
Its a large amount of idle program resource can also be sold using IPTV by electric operator, therefore the development for radio and television is provided by IPTV
New opportunity.While IPTV service high speed development, how to improve Consumer's Experience becomes Ge great operators focus of attention.
Required time when channel change delay refers to that IPTV is switched between different channel, if channel change delay
It is long, stand-by period of the user in switching channels will be increased, and then affect Consumer's Experience.In prior art, IPTV channels are cut
The method of changing is mainly included the following steps that：Downloaded according to the broadcast address of target channel and cache code stream；The root in the code stream of caching
PID (Packet ID, package identification) according to pat table (Program Association Table, Program Association Table) is real-time
Detect whether to get pat table；After pat table is got, pat table is parsed, obtain the pmt table of target channel
The PID of (Program Map Table, Program Map Table)；Whether pmt table is got according to the PID real-time detections of pmt table；
After getting pmt table, pmt table is parsed, obtain the audio/video information of target channel, the audio/video information includes video class
Type, video PID, PCR (program clock reference, reference clock) data PID, audio types and Audio PID etc. are believed
Breath, plays out so as to arrange decoder according to audio/video information.
In summary it can be seen, pat table and PMT when carrying out channel switch in prior art every time, will be searched in code stream
Table, and the pat table and pmt table to finding parse, wherein, the lookup and resolving to pat table and pmt table is required to
The regular hour is taken, causes channel change delay long, affect Consumer's Experience.
The content of the invention
The channel switching method and terminal of a kind of Web TV are provided in the embodiment of the present invention, to solve in prior art
Channel change delay is long, affects the problem of Consumer's Experience.
In a first aspect, embodiments providing a kind of channel switching method of Web TV, methods described includes：Root
According to the channel switching instruction for receiving, it is determined that the target channel that will switch；Judge in default channel information statistical form be
The no audio/video information that there is the target channel；When the audio frequency and video that there is the target channel in the channel information statistical form
During information, the audio/video information of the target channel is extracted in the channel information statistical form；According to the target channel
Audio/video information the decoding parametric of decoder is set, play the audio-video code stream of the target channel.
Second aspect, embodiments provides a kind of terminal, and the terminal includes：Processor；Process for storage
The memory of device executable instruction, wherein, the processor is configured to perform the method described in above-mentioned first aspect.
In technical scheme provided in an embodiment of the present invention, channel predetermined Information Statistics table refers to channel switch is received
After order, in first looking for channel information statistical form, whether there is the audio/video information of target channel, if it is present directly basis
The audio/video information of the target channel stored in channel information statistical form arranges the decoding parametric of decoder, and completing channel switches,
The time that the pat table to target channel and pmt table make a look up and parse is eliminated, and then when reducing channels of network TV switching
Prolong, improve Consumer's Experience.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, on the premise of not paying creative work, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is a kind of schematic diagram of a scenario provided in an embodiment of the present invention；
Channel switching method schematic flow sheets of the Fig. 2 for one Web TV of the embodiment of the present invention；
Channel switching method schematic flow sheets of the Fig. 3 for two Web TV of the embodiment of the present invention；
Channel switching method schematic flow sheets of the Fig. 4 for three Web TV of the embodiment of the present invention；
Channel switching method schematic flow sheets of the Fig. 5 for four Web TV of the embodiment of the present invention；
Fig. 6 is a kind of structural representation of terminal provided in an embodiment of the present invention.
Specific embodiment
In order that those skilled in the art more fully understand the technical scheme in the present invention, below in conjunction with of the invention real
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described enforcement
Example is only a part of embodiment of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, this area is common
The every other embodiment obtained under the premise of creative work is not made by technical staff, should all belong to protection of the present invention
Scope.
Fig. 1 is a kind of schematic diagram of a scenario provided in an embodiment of the present invention, and Fig. 1 includes television set 101 and network machine top box
102, television set 101 and network machine top box 102 can be connected by wired or wireless mode, and network machine top box 102 is used for will
Network resource transmission allows user to browse webpage by television set 101 or watch Web TV etc. to television set 101.Wherein,
Be only a kind of schematic diagram of a scenario of the present invention shown in Fig. 1, in figure the particular type of network machine top box 102 and television set 101 and
Corresponding relation is not limited to the concrete form disclosed in Fig. 1.For example, network machine top box 102 and television set 101 can be arranged on one
Rise, formation is provided with the television set 101 of Web TV module, the present invention is not specifically limited to this.
User is when Web TV is watched, it will usually according to the hobby switching TV channel of oneself.In correlation technique, in order to
Ensure the accuracy played, after channel switching instruction is received every time, channel information will be carried out according to the code stream of caching
Parsing, but the actually channel information change of Web TV infrequently, therefore this processing mode uneconomical.And by
It is longer in the time that the process parsed to channel information takes, cause channel change delay longer, affect Consumer's Experience.
For the problems referred to above, a kind of frequency of the Web TV that can reduce channel change delay is embodiments provided
Channel switching method.Channel switching method schematic flow sheets of the Fig. 2 for one Web TV of the embodiment of the present invention, as shown in Fig. 2 its master
Comprise the following steps.
Step S201：According to the channel switching instruction for receiving, it is determined that the target channel that will switch.
User can trigger channel switching instruction by the remote control of network machine top box, it is also possible to by network machine top box
Button triggering channel switching instruction.For example, the currently playing channel of television set is CCTV1, in the channel column of television set storage
In table, the succeeding channel of CCTV1 is CCTV2, then, when user clicks on " channel+" button of remote control, determine that user will cut
The target channel changed is CCTV2.
Step S202：Judge that the audio frequency and video with the presence or absence of the target channel in default channel information statistical form are believed
Breath.
In embodiments of the present invention, it is provided with for storing the channel information statistical form of channel information, the channel information is counted
Channel Basic Information Table and channel audio information table can be included in table.Wherein, channel can be included in channel Basic Information Table
Mark and the channel designation being associated with channel identication, video type, video PID, PCR (program clock
Reference, reference clock) information such as data PID；In channel audio information table can include channel identication and with channel mark
The information such as the channel designation of sensible association, audio types, Audio PID.
Wherein, channel identication is channel unique identity in systems, then " it is determined that the target channel that will switch "
Can be understood as determining the channel identication of the target channel that will switch.United in channel information according to the channel identication of target channel
The audio/video information that there is target channel is searched whether in meter table.
In a kind of alternative embodiment of the invention, channel Basic Information Table and channel audio information table are respectively such as table one and table
Shown in two.
Table one：
| Channel identication | Channel designation | Video type | Video PID | PCRPID |
| 001 | CCTV1 | Ox1b | Ox200 | Ox200 |
| 002 | CCTV2 | Ox1b | Ox201 | Ox201 |
Table two：
| Channel identication | Channel designation | Audio types | Audio PID |
| 001 | CCTV1 | Ox03 | Ox28a |
| 002 | CCTV2 | Ox03 | Ox28b |
As shown in table one and table two, there is the audio/video information of CCTV1 and CCTV2 in channel information statistical form.When true
Set the goal after channel, whether can determine that in channel information statistical form according to the channel identication look-up table one and table two of target channel
There is the audio frequency and video pid information of target channel.
For example, when user switches to CCTV2 by CCTV1, then search and the channel identication of CCTV2 in table one and table two
002 associated audio/video information, after it is determined that there is the audio/video information of CCTV2 in channel information statistical form, into step
S203。
Step S203：The audio/video information of the target channel is extracted in the channel information statistical form.
When target channel is CCTV2, due to the audio/video information that there is CCTV2 in table one and table two, therefore can be with
In table one and table two, the audio/video information of extracting directly CCTV2, eliminates the time parsed by the code stream to CCTV2.With
As a example by 4M high definitions code stream inserts a pat table and pmt table per 100ms, the 200-300ms times can be saved, for 1S-1.5S's
20% efficiency can be improved for average zapping speed.
Step S204：The decoding parametric of decoder is arranged according to the audio/video information of the target channel, the mesh is played
The audio-video code stream of mark channel.
The channel predetermined Information Statistics table in above-mentioned technical proposal, after channel switching instruction is received, first looks for frequency
Whether there is the audio/video information of target channel in road Information Statistics table, if it is present directly according to channel information statistical form
The audio/video information of the target channel of middle storage arranges the decoding parametric of decoder, and completing channel switching is eliminated to target frequency
The time that the pat table and pmt table in road makes a look up and parse, and then time delay of switching channels of network TV is reduced, improve user's body
Test.
Channel switching method schematic flow sheets of the Fig. 3 for two Web TV of the embodiment of the present invention, as shown in figure 3, the method
Mainly include the following steps that.
Step S301：According to the channel switching instruction for receiving, it is determined that the target channel that will switch.
Step S302：Judge that the audio frequency and video with the presence or absence of the target channel in default channel information statistical form are believed
Breath.
When there is the audio/video information of the target channel in default channel information statistical form, into step
S303；Step S304 is entered otherwise.
Step S303：The audio/video information of the target channel is extracted in the channel information statistical form, is extracted
The audio/video information of the target channel, afterwards into step S306.
Step S304：The code stream of the target channel is parsed, institute is extracted in the code stream of the target channel
State the audio/video information of target channel.
For example, the target channel that user will switch is CCTV3, due to the sound that there is no CCTV3 in table one and table two
Video information, it is therefore desirable to which the code stream of CCTV3 is cached and parsed, extracts its audio frequency and video in the code stream of CCTV3 and believes
Breath.
Step S305：The audio/video information of the target channel for extracting is added to into the channel information statistical form
In.
After the audio/video information for extracting CCTV3, the audio/video information of CCTV3 is added to into channel information statistical form
In, complete the renewal to channel information statistical form, then when user is switched to CCTV3 next time, can be in channel information statistical form
Middle extracting directly goes out the audio/video information of CCTV3, it is to avoid the code stream of CCTV3 is parsed again.
Step S306：The decoding parametric of decoder is arranged according to the audio/video information of the target channel, the mesh is played
The audio-video code stream of mark channel.
In embodiments of the present invention, when there is the audio/video information of target channel in channel information statistical form, preferably exist
The audio/video information of target channel is extracted in channel information statistical form, to reduce this channel change delay；Work as channel information
When there is no the audio/video information of target channel in statistical form, the code stream of target channel is parsed, in the code of target channel
The audio/video information of target channel is extracted in stream, and the audio/video information of target channel is added to into channel information statistical form
In, to reduce next channel change delay.
It is easily understood that for the channel of first switching, its audio frequency and video being there is usually no in channel information statistical form and being believed
Breath, needs to parse the code stream of the channel, and the audio/video information of the channel is added in channel information statistical form.With
The use of user, the channel of Web TV is added gradually in channel information statistical form, will be channel information statistical form perfect.When
So, system gradually can also be parsed to the code stream of each channel on backstage in network idle, by each frequency after parsing
The audio/video information in road is added gradually in channel information statistical form, is realized perfect to the active of channel information statistical form.
Channel switching method schematic flow sheets of the Fig. 4 for three Web TV of the embodiment of the present invention, as shown in figure 4, the method
Mainly include the following steps that.
Step S401：According to the channel switching instruction for receiving, it is determined that the target channel that will switch.
Step S402：Judge that the audio frequency and video with the presence or absence of the target channel in default channel information statistical form are believed
Breath.
When there is the audio/video information of the target channel in default channel information statistical form, into step
S403；Otherwise, into step S408.
Step S403：When there is the audio/video information of the target channel in default channel information statistical form, sentence
When described in the disconnected channel information statistical form, whether the storage time of the audio/video information of target channel is less than default aging
Between threshold value.
The audio/video information of channel is not unalterable, and operator may be according to the business development demand of oneself to frequency
The audio/video information in road is changed.If after the audio/video information of target channel changes, still using channel information
The audio/video information of the target channel stored in statistical form arranges decoder, it is clear that can cause decoding error.Therefore, in the present invention
The concept of ageing time is introduced in embodiment, wherein, ageing time refers to what the audio/video information of channel may change
Whether time interval, its audio/video information for being used for predictive channel change.
In embodiments of the present invention, the storage time of the audio/video information of channel is also recorded in channel information statistical form,
Storage time is compared with ageing time threshold value, it is whether aging with the audio/video information for determining stored.For example, preset
The ageing time threshold value of CCTV1 is 720h, if the storage time of the audio/video information of CCTV1 is less than in channel information statistical form
720h, illustrates that the audio/video information of CCTV1 is likely to unaged；If the audio/video information of CCTV1 in channel information statistical form
Storage time more than or equal to 720h illustrate CCTV1 audio/video information be likely to weathered.
When the storage time of the audio/video information of target channel is less than default ageing time threshold value, target channel is predicted
Audio/video information do not occur change, then into step S404；When the storage time of the audio/video information of target channel is more than
Or when being equal to default ageing time threshold value, predict that the audio/video information of target channel there occurs change, then into step S405.
Step S404：When the storage time of the audio/video information of target channel is less than default ageing time threshold value,
The audio/video information of the target channel is extracted in the channel information statistical form, afterwards into step S410.
Step S405：When the storage time of the audio/video information of target channel is more than or equal to default ageing time threshold value
When, the code stream of the target channel is parsed, the sound of the target channel is extracted in the code stream of the target channel
Video information.
When the storage time of the audio/video information of target channel is more than or equal to default ageing time threshold value, mesh is illustrated
The audio/video information of mark channel may have occurred and that change, then again the code stream of target channel is parsed, in target channel
Code stream in extract the audio/video information of the target channel.
Step S406：By the audio/video information of the target channel extracted in the code stream of the target channel and institute
The audio/video information of the target channel stored in stating channel information statistical form is contrasted, and judges the sound of the target channel
Video information is with the presence or absence of renewal.
The storage time of the audio/video information of target channel and ageing time are compared in step S403, simply in advance
There is the possibility of change in the audio/video information for estimating target channel, even if the storage time of the audio/video information of target channel is more than
Or be equal to default ageing time threshold value, the audio/video information of target channel is likely to not change, now need by
It is right that the audio/video information stored in the audio/video information extracted in the code stream of target channel and channel information statistical form is carried out
Than to determine the audio/video information of target channel with the presence or absence of renewal.
It is easily understood that the audio/video information extracted in the code stream of target channel is the newest sound of target channel regarding
Frequency information, on this basis, when depositing in the audio/video information extracted in the code stream of target channel with channel information statistical form
When the audio/video information of the target channel of storage is identical, illustrate that the audio/video information of target channel does not have renewal；Otherwise, say
The audio/video information storage of bright target channel updates.Wherein, when the audio/video information of target channel is present to be updated, into step
S407；When the audio/video information of target channel does not have renewal, into step S410.
Step S407：When the audio/video information of target channel is present to be updated, to target in the channel information statistical form
The audio/video information of channel is updated, subsequently into step S410.
The audio/video information of target channel in channel information statistical form is updated to be switched next time for the ease of user
During to the target channel, directly decoded using the audio/video information in channel information statistical form.Wherein, the channel is believed
In breath statistical form, the audio/video information of target channel is updated and can be understood as：The mesh that will be stored in channel information statistical form
The audio/video information of mark channel is updated to the audio/video information extracted in the code stream of target channel.
Step S408：When there is no the audio/video information of the target channel in default channel information statistical form,
The code stream of the target channel is parsed, the audio frequency and video of the target channel are extracted in the code stream of the target channel
Information.
Step S409：The audio/video information of the target channel for extracting is added to into the channel information statistical form
In.
Step S410：The decoding parametric of decoder is arranged according to the audio/video information of the target channel, the mesh is played
The audio-video code stream of mark channel.
Wherein, when following conditions are met for the moment, the audio/video information for arranging decoder is channel information statistical form
The audio/video information of middle storage：There is the audio/video information of the target channel, and the target in a, channel information statistical form
The audio/video information of channel is not aging；There is the audio/video information of the target channel in b, channel information statistical form, it is described
The audio/video information of target channel is weathered, but the audio/video information of the target channel does not have renewal.
When following conditions are met for the moment, the audio/video information for arranging decoder is to carry in the code stream of target channel
The audio/video information of taking-up：There is no the audio/video information of the target channel in a, channel information statistical form；B, channel information
There is the audio/video information of the target channel in statistical form, the audio/video information of the target channel is weathered and described
There is renewal in the audio/video information of target channel.
In embodiments of the present invention, the aging mechanism of audio/video information is introduced, to what is stored in channel information statistical form
The degree of accuracy of audio/video information is predicted, and while channel change delay is reduced, reduces the probability that decoder misreads code.
If it is pointed out that by the long of the ageing time threshold value setting of channel, decoder can be caused to misread code
Probability is improved；If by the too short of the ageing time threshold value setting of channel, the parsing to code stream can be caused excessively frequent, frequency is increased
Road handover delay.Therefore, it is that channel arranges Consumer's Experience when rational ageing time threshold value can improve channel switch.
Due to the change frequency difference of the audio/video information of different channel, therefore phase can be respectively provided with for different channels
The ageing time threshold value answered.In addition, the change frequency of the audio/video information of channel is likely to change, in order to reach more preferably
Prediction effect, need to carry out data correction to the ageing time threshold value of channel.
In a kind of alternative embodiment of the invention, when the audio/video information of certain channel is present to be updated, the channel is recorded
Update date and renewal time, according to the update date and renewal time of the channel, adjust its ageing time threshold value.Therefore, frequency
Also include in road Information Statistics table that channel information changes table, referring to table three.
Table three：
| Channel identication | Channel designation | Update date | The renewal time |
| 001 | CCTV1 | 10/05/2016 | 10:30:00 |
| 002 | CCTV2 | 20/05/2016 | 5:25:20 |
| 001 | CCTV1 | 12/06/2016 | 20:30:00 |
| 002 | CCTV2 | 25/06/2016 | 8:15:12 |
The audio/video information of CCTV1 and CCTV2 twice nearest update date and renewal time are shown in table three, with
As a example by CCTV1, difference operation is carried out according to its update date and renewal time twice recently, calculate which and update time interval
For 33*24h+10h=802h, therefore it is 802h by the ageing time adjusting thresholds of CCTV1.It is pointed out that above-mentioned enforcement
Example is succinct in order to describe, and is illustrated as a example by once updating time interval, those skilled in the art in order to improve to it is aging when
Between the accuracy that updates of threshold value, it is also possible to take and update recently repeatedly the average of time interval ageing time threshold value is updated,
Which should fall under the scope of the present invention.
Another kind of alternative embodiment of the present invention, the audio/video information for counting channel at a certain time interval occur more
New number of times, and the viewing number of times of channel, according to the update times and viewing number of times of channel, adjust the ageing time threshold of channel
Value.
For example, in one month, channel CCTV1 have viewed 20 times, and its audio/video information there occurs 2 changes, CCTV1
Standard ageing time be 720h, then the ageing time threshold value for calculating CCTV1 according to formula Ag=AT* (1-CT/WT) is
648h, will CCTV1 ageing time adjusting thresholds be 648h, AT be standard ageing time, CT for audio/video information change
Number of times, viewing number of times of the WT for channel.Wherein, when the viewing number of times WT of channel is 0, then ageing time threshold value is not adjusted
It is whole.
Channel switching method schematic flow sheets of the Fig. 5 for four Web TV of the embodiment of the present invention, as shown in figure 5, the method
Mainly include the following steps that.
Step S501：According to the channel switching instruction for receiving, it is determined that the target channel that will switch.
Step S502：Judge that the audio frequency and video with the presence or absence of the target channel in default channel information statistical form are believed
Breath.
When there is the audio/video information of the target channel in default channel information statistical form, into step
S503；Step S504 is entered otherwise
Step S503：The audio/video information of the target channel is extracted in the channel information statistical form, is extracted
The audio/video information of the target channel, afterwards into step S506
Step S504：The code stream of the target channel is parsed, institute is extracted in the code stream of the target channel
State the audio/video information of target channel.
Step S505：The audio/video information of the target channel for extracting is added to into the channel information statistical form
In.
Step S506：The decoding parametric of decoder is arranged according to the audio/video information of the target channel, the mesh is played
The audio-video code stream of mark channel.
Due in the playing process of channel, the audio/video information of channel it can also happen that change, therefore, using existing
Audio/video information when playing out, need to start information monitoring flow process simultaneously on backstage, the audio/video information of monitor channel is
No to change, its monitoring process is as shown in step S507-S509.
Step S507：According to the default first monitoring time interval, the code stream of the target channel is parsed, in institute
The audio/video information of the target channel is extracted in the code stream for stating target channel.
Step S508：By the audio/video information of the target channel extracted in the code stream of the target channel and institute
The audio/video information for stating the target channel of decoder current application is contrasted, and judges the audio frequency and video letter of the target channel
Breath whether there is renewal, when the audio/video information of target channel is present to be updated, into step S509；Otherwise, return to step
S507, when next first detection time interval is reached, is parsed to the code stream of target channel again.
Step S509：When the audio/video information of the target channel is present to be updated, according to the code in the target channel
The audio/video information of the target channel extracted in stream resets the decoding parametric of the decoder.
In embodiments of the present invention, when there is playback action, the audio/video information of current play channel is monitored,
When finding that audio/video information occurs change, decoder is reset according to new audio/video information, the time lost is
The time of decoder of restarting, it is unaware for user, will not Consumer's Experience is caused to significantly affect.
In addition, when there is no playback action, system does not have the pressure of flow and data processing, monitoring stream can be started
Journey, detects to the audio/video information of all channels.Specially：According to default second time interval respectively to each channel
Code stream parsed, the audio/video information of each channel is extracted in the code stream of each channel, wherein, it is described
The part or all of channel that each channel is stored in including the channel information statistical form；Respectively by the code in each channel
Each channel described in storing in the audio/video information of each channel extracted in stream and the channel information statistical form
Audio/video information contrasted, judge described in each channel audio/video information with the presence or absence of update；When the sound of the first channel
When video information has renewal, according to the audio/video information of first channel extracted in the code stream of first channel
The audio/video information of first channel stored in updating the channel information statistical form, first channel for it is described each
Any one in channel.
Certainly, if the data-handling capacity of system is stronger, when there is playback action, it is also possible to according to the regular hour
It is spaced the audio/video information to each channel to be monitored, which should fall under the scope of the present invention.
The channel switching method provided using the embodiment of the present invention, after channel switching instruction is received, is first looked for
Whether there is the audio/video information of target channel in channel information statistical form, if it is present directly counting according to channel information
The audio/video information of the target channel stored in table arranges the decoding parametric of decoder, and completing channel switching is eliminated to target
The time that the pat table and pmt table of channel makes a look up and parse, and then time delay of switching channels of network TV is reduced, improve user
Experience.
On the basis of said method embodiment, present invention also offers a kind of terminal embodiment, the concrete shape of the terminal
Formula can be network machine top box or the television set with Web TV module.
Fig. 6 is a kind of structural representation of terminal provided in an embodiment of the present invention, as shown in fig. 6, the terminal 600 can be with
Including：Processor 601, memory 602 and communication unit 603.These components are communicated by one or more bus, ability
The structure of the server that field technique personnel are illustrated in being appreciated that figure does not constitute the restriction to the application, and it can both be total
Linear structure, or hub-and-spoke configuration, can also include than illustrating more or less of part, or combine some parts,
Or different part arrangements.
Wherein, the communication unit 603, for setting up communication channel, so that the storage device can be set with other
It is standby to be communicated.User data or send user data to other equipment that reception other equipment is.
The processor 601, is the control centre of storage device, using various interfaces and the whole electronic equipment of connection
Various pieces, be stored in software program and/or module in memory 602 by running or performing, and call and be stored in
Data in memory, to perform the various functions and/or processing data of electronic equipment.The processor can be by integrated circuit
(Integrated Circuit, abbreviation IC) is constituted, for example, can be made up of the IC of single encapsulation, it is also possible to by many of connection
The encapsulation IC of identical function or difference in functionality and constitute.For example, processor 601 can only include central processing unit
(Central Processing Unit, abbreviation CPU).In the application embodiment, CPU can be single arithmetic core, also may be used
With including multioperation core.
The memory 602, for storing the execute instruction of processor 601, memory 602 can be by any kind of easy
The property lost or non-volatile memory device or combinations thereof realization, such as static RAM (SRAM), electric erasable
Programmable read only memory (EEPROM), Erasable Programmable Read Only Memory EPROM (EPROM), programmable read only memory
(PROM), read-only storage (ROM), magnetic memory, flash memory, disk or CD.
When the execute instruction in memory 602 is performed by processor 601 so that terminal 600 is able to carry out following above-mentioned
Part or all of step in embodiment of the method.
In implementing, the application also provides a kind of computer-readable storage medium, wherein, the computer-readable storage medium can be stored
There is program, during the program performing, may include the part or all of step in each embodiment of the method for calling that the application is provided.Institute
The storage medium stated can be magnetic disc, CD, read-only memory (English：Read-only memory, referred to as：ROM) or with
Machine storage memory (English：Random access memory, referred to as：RAM) etc..
It is required that those skilled in the art can be understood that the technology in the embodiment of the present application can add by software
General hardware platform mode realizing.Based on such understanding, the technical scheme in the embodiment of the present application substantially or
Say that the part contributed to prior art can be embodied in the form of software product, the computer software product can be deposited
In storage medium, such as ROM/RAM, magnetic disc, CD etc. (can be with so that computer equipment including some instructions use for storage
It is personal computer, server, or network equipment etc.) perform some part institutes of each embodiment of the application or embodiment
The method stated.
In this specification between each embodiment identical similar part mutually referring to.Implement especially for terminal
For example, as which is substantially similar to embodiment of the method, so description is fairly simple, related part is referring in embodiment of the method
Explanation.
Above-described the application embodiment does not constitute the restriction to the application protection domain.
Claims (10)
1. a kind of channel switching method of Web TV, it is characterised in that include：
According to the channel switching instruction for receiving, it is determined that the target channel that will switch；
Judge the audio/video information with the presence or absence of the target channel in default channel information statistical form；
When there is the audio/video information of the target channel in the channel information statistical form, in the channel information statistical form
In extract the audio/video information of the target channel；
The decoding parametric of decoder is arranged according to the audio/video information of the target channel, the audio frequency and video of the target channel are played
Code stream.
2. method according to claim 1, it is characterised in that in default channel information statistical form be in the judgement
After the no audio/video information that there is the target channel, also include：
When there is no the audio/video information of the target channel in the channel information statistical form, the code to the target channel
Stream is parsed, and the audio/video information of the target channel is extracted in the code stream of the target channel；
The audio/video information of the target channel for extracting is added in the channel information statistical form.
3. method according to claim 1, it is characterised in that extract the target in the channel information statistical form
The audio/video information of channel, including：
Judge the storage time of the audio/video information of target channel described in the channel information statistical form whether less than default
Ageing time threshold value；
The storage time of the audio/video information of the target channel described in the channel information statistical form less than it is default aging when
Between threshold value when, the audio/video information of the target channel is extracted in the channel information statistical form.
4. method according to claim 3, it is characterised in that judging the frequency of target described in the channel information statistical form
Whether the storage time of the audio/video information in road also includes less than after default ageing time threshold value：
When the storage time of the audio/video information of the target channel is more than or equal to default ageing time threshold value, to described
The code stream of target channel is parsed, and the audio/video information of the target channel is extracted in the code stream of the target channel；
The audio/video information of the target channel extracted in the code stream of the target channel and the channel information are united
The audio/video information of the target channel stored in meter table is contrasted, and whether judges the audio/video information of the target channel
Exist and update；
When the audio/video information of the target channel is present to be updated, is arranged according to the audio/video information of the target channel and decoded
The decoding parametric of device, including：According to the audio/video information of the target channel extracted in the code stream of the target channel
The decoding parametric of decoder is set.
5. method according to claim 1, it is characterised in that solve being arranged according to the audio/video information of the target channel
After the decoding parametric of code device, also include：
According to the default first monitoring time interval, the code stream of the target channel is parsed, in the target channel
The audio/video information of the target channel is extracted in code stream；
Will be the audio/video information of the target channel extracted in the code stream of the target channel current with the decoder
Using the audio/video information of the target channel contrasted, judge the audio/video information of the target channel with the presence or absence of more
Newly；
When the audio/video information of the target channel is present to be updated, according to the institute extracted in the code stream of the target channel
The audio/video information for stating target channel resets the decoding parametric of the decoder.
6. the method according to claim 4 or 5, it is characterised in that also include：
When the audio/video information of the target channel is present to be updated, according to the institute extracted in the code stream of the target channel
The audio/video information of the target channel stored in the audio/video information renewal channel information statistical form for stating target channel.
7. method according to claim 1, it is characterised in that also include：
According to default second time interval, respectively the code stream of each channel is parsed, in the code stream of each channel
In extract the audio/video information of each channel, wherein, described each channel is deposited in including the channel information statistical form
The part or all of channel of storage；
Described in extracting in the code stream of each channel respectively, the audio/video information of each channel is believed with the channel
The audio/video information of each channel stored in breath statistical form is contrasted, and judges the audio/video information of each channel
With the presence or absence of renewal；
When the audio/video information of the first channel is present to be updated, according to described the extracted in the code stream of first channel
The audio/video information of first channel that the audio/video information of one channel is stored in updating the channel information statistical form, it is described
First channel is any one in described each channel.
8. the method according to 4,5 or 7 any one of claim, it is characterised in that also include：
When the audio/video information of the target channel or the first channel is present to be updated, the target channel or the first channel are recorded
Update date and update the time；
According to the update date and renewal time of the target channel or the first channel, the target channel or the first channel are adjusted
Ageing time threshold value.
9. the method according to 4,5 or 7 any one of claim, it is characterised in that also include：
In default 3rd time interval, there is the secondary of renewal in the audio/video information for counting the target channel or the first channel
Number, and the target channel or the first channel viewing number of times；
According to the update times and viewing number of times of the target channel or the first channel, the target channel or the first channel are adjusted
Ageing time threshold value.
10. a kind of terminal, it is characterised in that include：
Processor and the memory for storing processor executable；
Wherein, the processor is configured to perform claim and requires the method described in any one of 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611053275.7A CN106534961B (en) | 2016-11-24 | 2016-11-24 | The channel switching method and terminal of Web TV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611053275.7A CN106534961B (en) | 2016-11-24 | 2016-11-24 | The channel switching method and terminal of Web TV |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106534961A true CN106534961A (en) | 2017-03-22 |
| CN106534961B CN106534961B (en) | 2019-09-17 |
Family
ID=58357421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611053275.7A Active CN106534961B (en) | 2016-11-24 | 2016-11-24 | The channel switching method and terminal of Web TV |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106534961B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108521601A (en) * | 2018-02-28 | 2018-09-11 | 青岛海信电器股份有限公司 | A kind of fast playing method and device of non-standard code stream |
| CN114449357A (en) * | 2020-11-02 | 2022-05-06 | 青岛海信宽带多媒体技术有限公司 | Method, device and terminal for optimizing IPTV multicast channel switching |
| US11381871B2 (en) | 2018-12-11 | 2022-07-05 | Samsung Electronics Co., Ltd. | Electronic apparatus and controlling method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101267538A (en) * | 2007-03-15 | 2008-09-17 | 华为技术有限公司 | A method and system for switching network TV channel and buffer entity |
| CN102123323A (en) * | 2010-12-27 | 2011-07-13 | 四川长虹电器股份有限公司 | Method for rapidly updating television program of single-tuner set top box |
| CN102595236A (en) * | 2012-01-31 | 2012-07-18 | 深圳创维数字技术股份有限公司 | Set top box and method thereof for changing channels of digital television |
| CN104602115A (en) * | 2015-01-13 | 2015-05-06 | 青岛海信宽带多媒体技术有限公司 | Method and system for switching of network television channels |
| CN104768033A (en) * | 2015-04-15 | 2015-07-08 | 广州市汉融软件有限公司 | Network television channel quick switching method and system based on preloading |
| CN105187943A (en) * | 2015-09-21 | 2015-12-23 | 三星电子（中国）研发中心 | Television channel supplement method and device |
| US20160173936A1 (en) * | 2014-12-12 | 2016-06-16 | Samsung Electronics Co., Ltd. | Method and apparatus for changing channel of set-top box |
-
2016
- 2016-11-24 CN CN201611053275.7A patent/CN106534961B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101267538A (en) * | 2007-03-15 | 2008-09-17 | 华为技术有限公司 | A method and system for switching network TV channel and buffer entity |
| CN102123323A (en) * | 2010-12-27 | 2011-07-13 | 四川长虹电器股份有限公司 | Method for rapidly updating television program of single-tuner set top box |
| CN102595236A (en) * | 2012-01-31 | 2012-07-18 | 深圳创维数字技术股份有限公司 | Set top box and method thereof for changing channels of digital television |
| US20160173936A1 (en) * | 2014-12-12 | 2016-06-16 | Samsung Electronics Co., Ltd. | Method and apparatus for changing channel of set-top box |
| CN104602115A (en) * | 2015-01-13 | 2015-05-06 | 青岛海信宽带多媒体技术有限公司 | Method and system for switching of network television channels |
| CN104768033A (en) * | 2015-04-15 | 2015-07-08 | 广州市汉融软件有限公司 | Network television channel quick switching method and system based on preloading |
| CN105187943A (en) * | 2015-09-21 | 2015-12-23 | 三星电子（中国）研发中心 | Television channel supplement method and device |
Non-Patent Citations (1)
| Title |
|---|
| 胡云鹏: "面向IPTV的分布式文件系统仿真软件的设计与实现", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108521601A (en) * | 2018-02-28 | 2018-09-11 | 青岛海信电器股份有限公司 | A kind of fast playing method and device of non-standard code stream |
| CN108521601B (en) * | 2018-02-28 | 2022-04-29 | 海信视像科技股份有限公司 | Method and device for rapidly playing non-standard code stream |
| US11381871B2 (en) | 2018-12-11 | 2022-07-05 | Samsung Electronics Co., Ltd. | Electronic apparatus and controlling method thereof |
| CN114449357A (en) * | 2020-11-02 | 2022-05-06 | 青岛海信宽带多媒体技术有限公司 | Method, device and terminal for optimizing IPTV multicast channel switching |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106534961B (en) | 2019-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109168078B (en) | Video definition switching method and device | |
| CN108174280B (en) | Audio and video online playing method and system | |
| CN106534961A (en) | Method for channel switching of network television and terminal | |
| US11563992B2 (en) | Video playback quality detection method and apparatus | |
| CN108462896B (en) | Live data stream processing method and device and electronic equipment | |
| US9231916B1 (en) | Protection against rule map update attacks | |
| CN102006605A (en) | Methods and apparatus to identify wireless carrier performance effects | |
| CN109561300B (en) | Service quality detection method and device | |
| US20190238607A1 (en) | Failure detection manager | |
| CN108540819A (en) | Live data processing method, device, computer equipment and storage medium | |
| CA2931525A1 (en) | Data stream identifying method and device | |
| EP3310093A1 (en) | Traffic control method and apparatus | |
| US10284889B1 (en) | Determining an actual start of program content relative to a scheduled start of the program content | |
| CN105791987B (en) | media data playing method and terminal | |
| CN106303563B (en) | Streaming media online playing method and device, execution terminal and storage medium | |
| US8634310B2 (en) | Methods and apparatus for improved program acquisition for use with MPEG-2 based systems | |
| CN108933697B (en) | Broadband quality detection method | |
| US20210368213A1 (en) | Method and device for quick start of live video streaming | |
| CN108632681A (en) | Play method, server and the terminal of Media Stream | |
| CN103747341B (en) | Television program attribute updating method and television program attribute updating device | |
| CN110198481A (en) | A kind of program updating method, device, electronic equipment and storage medium | |
| CN109218809B (en) | Streaming media playing method and device | |
| CN105657525A (en) | Channel switching method and device | |
| CN115037654A (en) | Flow statistical method and device, electronic equipment and readable storage medium | |
| CN114025184A (en) | Video live broadcast method and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |