CN111586460A - Channel switching method - Google Patents
Channel switching method Download PDFInfo
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- CN111586460A CN111586460A CN202010259205.7A CN202010259205A CN111586460A CN 111586460 A CN111586460 A CN 111586460A CN 202010259205 A CN202010259205 A CN 202010259205A CN 111586460 A CN111586460 A CN 111586460A
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- channel
- screened
- adjacent
- switching method
- decoding
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- 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
- H04N21/426—Internal components of the client ; Characteristics thereof
- H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
- H04N21/4263—Internal components of the client ; Characteristics thereof for processing the incoming bitstream involving specific tuning arrangements, e.g. two tuners
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- 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 MPEG packets from an IP network
- H04N21/4383—Accessing a communication channel
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- 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 MPEG packets from an IP network
- H04N21/4383—Accessing a communication channel
- H04N21/4384—Accessing a communication channel involving operations to reduce the access time, e.g. fast-tuning for reducing channel switching latency
Abstract
A method of channel switching, comprising the steps of: step S1, presetting a channel sequence; acquiring a current channel; step S2, determining the adjacent channel adjacent to the current channel according to the preset channel sequence, and processing the adjacent channel by means of advanced frequency locking, descrambling and decoding; step S3, when a command to switch to the adjacent channel is acquired, switches to the adjacent channel based on the effect of processing the adjacent channel. The channel switching method is novel in design and high in practicability.
Description
Technical Field
The invention relates to the technical field of set top boxes, in particular to a channel switching method.
Background
The set-top boxes in the current market comprise a DVB set-top box and an IP set-top box, wherein the DVB set-top box needs to complete playing through processes of frequency locking, demultiplexing and the like in each channel switching process, which results in that the channel switching time is about 2-3 seconds. The IP set-top box needs to wait for the key frame every time when switching channels in the multicast environment, and the channel switching can be completed only after the key frame, which results in about 2-3 seconds for switching channels.
Disclosure of Invention
The present invention provides a channel switching method for solving the above technical problems.
The technical scheme provided by the invention is as follows:
the invention provides a channel switching method, which comprises the following steps:
step S1, presetting a channel sequence; acquiring a current channel;
step S2, determining the adjacent channel adjacent to the current channel according to the preset channel sequence, and processing the adjacent channel by means of advanced frequency locking, descrambling and decoding;
step S3, when a command to switch to the adjacent channel is acquired, switches to the adjacent channel based on the effect of processing the adjacent channel.
In the above-mentioned channel switching method of the present invention, when the channel switching method is implemented by a DVB set-top box, in step S2, the adjacent channel is processed by means of frequency locking, descrambling and decoding in advance.
In the above method for switching channels of the present invention, when the method for switching channels is implemented by a DVB set-top box, step S1 further includes: presetting a play frequency threshold, and acquiring a screened channel of which the channel play frequency reaches the play frequency threshold in a preset historical time period;
step S2 further includes: processing the screened channels in a mode of frequency locking, descrambling and decoding in advance;
step S3 further includes: and when a command for switching to the screened channel is acquired, switching to the screened channel based on the effect of processing the screened channel in a mode of frequency locking, descrambling and decoding in advance.
In the above-mentioned channel switching method of the present invention, when the channel switching method is implemented by an IP set-top box, in step S2, the adjacent channel is processed by decoding in advance.
In the above-mentioned channel switching method of the present invention, when the channel switching method is implemented by an IP set-top box, step S1 further includes: presetting a play frequency threshold, and acquiring a screened channel of which the channel play frequency reaches the play frequency threshold in a preset historical time period;
step S2 further includes: processing the screened channels in a mode of decoding in advance;
step S3 further includes: and when a command for switching to the screened channel is acquired, switching to the screened channel based on the effect of processing the screened channel in a manner of decoding in advance.
The channel switching method can solve the problem of slow channel switching in the use of the set top box, and the channel switching time is optimized to about 1 second. The channel switching method is novel in design and high in practicability.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 shows a first flow chart of a channel switching method according to a first embodiment of the invention;
fig. 2 shows a second flow chart of the channel switching method according to the first embodiment of the invention;
fig. 3 shows a first flowchart of a channel switching method according to a second embodiment of the present invention;
fig. 4 shows a second flow chart of the channel switching method according to the second embodiment of the present invention.
Detailed Description
The technical problem to be solved by the invention is as follows: the DVB set-top box and the IP set-top box take about 2-3 seconds in each channel switching process, which gives users a bad experience. The technical idea of the invention for solving the technical problem is as follows: the channels that may be switched in the future are preprocessed to reduce the time it takes to switch channels. Specifically, the invention provides a channel switching method, which comprises the following steps:
step S1, presetting a channel sequence; acquiring a current channel;
step S2, determining the adjacent channel adjacent to the current channel according to the preset channel sequence, and processing the adjacent channel by means of advanced frequency locking, descrambling and decoding;
step S3, when a command to switch to the adjacent channel is acquired, switches to the adjacent channel based on the effect of processing the adjacent channel.
In order to make the technical purpose, technical solutions and technical effects of the present invention more clear and facilitate those skilled in the art to understand and implement the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
First embodiment
The invention provides a channel switching method, which comprises the following steps:
step S1, presetting a channel sequence; acquiring a current channel;
step S2, determining the adjacent channel adjacent to the current channel according to the preset channel sequence, and processing the adjacent channel by means of advanced frequency locking, descrambling and decoding;
step S3, when a command to switch to the adjacent channel is acquired, the adjacent channel is switched to based on the effect of processing the adjacent channel by frequency locking.
The technical scheme belongs to a scheme for switching channels of a DVB set top box. According to the habit of using the remote controller, the user usually uses the up-down keys of the remote controller to switch the channel, so as to switch the current channel played on the tv screen to the adjacent channel. The DVB set top box uses a tuner to perform frequency locking, descrambling and decoding on two adjacent channels which are adjacent to each other up and down of a current channel in advance in a preset automatic mode. When a user presses an up-down key of the remote controller, the DVB set-top box switches the current channel to the corresponding tuner for playing.
As shown in fig. 1, fig. 1 shows a first flow chart of a channel switching method according to a first embodiment of the present invention. Assuming that the current channel watched by the user is channel 302, tuner 2 and tuner 3 of the DVB set-top box will lock the frequency of channel 303 and channel 301 in advance, and when the user presses the button, the DVB set-top box will switch the channel to tuner 2, thereby playing channel 303.
Further, step S1 further includes: presetting a play frequency threshold, and acquiring a screened channel of which the channel play frequency reaches the play frequency threshold in a preset historical time period;
step S2 further includes: processing the screened channels in a mode of frequency locking, descrambling and decoding in advance;
step S3 further includes: and when a command for switching to the screened channel is acquired, switching to the screened channel based on the effect of processing the screened channel in a mode of frequency locking, descrambling and decoding in advance.
In the technical scheme, the DVB set top box combines the use habit of a user and the channel playing frequency, and uses a tuner to lock frequency of a plurality of channels frequently played by the user in advance. When the user switches to the screened channel through the number keys of the remote controller, the DVB set-top box can be directly switched to the corresponding tuner for playing.
As shown in fig. 2, fig. 2 is a second flow chart of the channel switching method according to the first embodiment of the present invention. Assuming that the current channel viewed by the user is channel 301, the channels frequently switched by the user using the numeric keys are channel 302, channel 303 and channel 304. The DVB set-top box will perform pre-frequency locking, descrambling and decoding on the channel 302, the channel 303 and the channel 304 through the tuner 2, the tuner 3 and the tuner 4, respectively, and when the user presses the channel 302, the DVB set-top box will switch to the tuner 2 to play the channel 302.
The channel switching method of the embodiment can solve the problem that the channel switching is slow in use of the DVB set top box, and the channel switching time is optimized to be about 1 second.
Second embodiment
The invention provides a channel switching method, which comprises the following steps:
step S1, presetting a channel sequence; acquiring a current channel;
step S2, determining the adjacent channel adjacent to the current channel according to the preset channel sequence, and processing the adjacent channel by means of decoding in advance;
step S3, when a command to switch to the adjacent channel is acquired, switches to the adjacent channel based on the effect of processing the adjacent channel by means of the early decoding.
The technical scheme belongs to a scheme for switching channels of an IP set top box. According to the habit of using the remote controller, the user usually uses the up-down keys of the remote controller to switch the channel, so as to switch the current channel played on the tv screen to the adjacent channel. The IP set top box decodes two adjacent channels which are adjacent up and down of the current channel in the background in advance by utilizing the multi-channel video decoding capability of the chip in a preset automatic mode. When the user presses the up-down key of the remote controller in the multicast environment, the IP set-top box switches the current channel to the corresponding channel for playing.
As shown in fig. 3, fig. 3 is a first flowchart of a channel switching method according to a second embodiment of the present invention. Assuming that the current channel watched by the user is channel 302, the IP set-top box will decode channel 303 and channel 301 in advance, and when the user presses the button, the DVB set-top box will render and play channel 303.
Further, step S1 further includes: presetting a play frequency threshold, and acquiring a screened channel of which the channel play frequency reaches the play frequency threshold in a preset historical time period;
step S2 further includes: processing the screened channels in a mode of decoding in advance;
step S3 further includes: and when a command for switching to the screened channel is acquired, switching to the screened channel based on the effect of processing the screened channel in a manner of decoding in advance.
In the technical scheme, the IP set top box can decode a plurality of channels which are frequently played by the user in advance by combining the use habit of the user and the channel playing frequency. When the user switches to the screened channel through the number keys of the remote controller, the DVB set-top box can be directly switched to the corresponding channel for playing.
As shown in fig. 4, fig. 4 is a second flow chart of the channel switching method according to the second embodiment of the present invention. Assuming that the current channel viewed by the user is channel 301, the channels frequently switched by the user using the numeric keys are channel 302, channel 303 and channel 304. The IP set-top box decodes the channel 302, the channel 303 and the channel 304 in the background in advance, and when the user presses the channel 302, the IP set-top box renders the channel 302 for playing.
The channel switching method of the embodiment can solve the problem that the channel switching is slow in use of the IP set top box, and the channel switching time is optimized to be about 1 second.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. A method for switching channels, comprising the steps of:
step S1, presetting a channel sequence; acquiring a current channel;
step S2, determining the adjacent channel adjacent to the current channel according to the preset channel sequence, and processing the adjacent channel by means of advanced frequency locking, descrambling and decoding;
step S3, when a command to switch to the adjacent channel is acquired, switches to the adjacent channel based on the effect of processing the adjacent channel.
2. The channel switching method of claim 1, wherein when the channel switching method is implemented by a DVB set-top box, the neighboring channels are processed by means of frequency locking, descrambling and decoding in advance in step S2.
3. The channel switching method according to claim 2, wherein when the channel switching method is implemented by a DVB set-top box, the step S1 further comprises: presetting a play frequency threshold, and acquiring a screened channel of which the channel play frequency reaches the play frequency threshold in a preset historical time period;
step S2 further includes: processing the screened channels in a mode of frequency locking, descrambling and decoding in advance;
step S3 further includes: and when a command for switching to the screened channel is acquired, switching to the screened channel based on the effect of processing the screened channel in a mode of frequency locking, descrambling and decoding in advance.
4. The channel switching method as claimed in claim 1, wherein when the channel switching method is implemented by an IP set-top box, the adjacent channel is processed by decoding in advance in step S2.
5. The channel switching method according to claim 4, wherein when the channel switching method is implemented by an IP set-top box, the step S1 further comprises: presetting a play frequency threshold, and acquiring a screened channel of which the channel play frequency reaches the play frequency threshold in a preset historical time period;
step S2 further includes: processing the screened channels in a mode of decoding in advance;
step S3 further includes: and when a command for switching to the screened channel is acquired, switching to the screened channel based on the effect of processing the screened channel in a manner of decoding in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010259205.7A CN111586460A (en) | 2020-04-03 | 2020-04-03 | Channel switching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010259205.7A CN111586460A (en) | 2020-04-03 | 2020-04-03 | Channel switching method |
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| CN111586460A true CN111586460A (en) | 2020-08-25 |
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| CN202010259205.7A Pending CN111586460A (en) | 2020-04-03 | 2020-04-03 | Channel switching method |
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Citations (7)
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| CN101472154A (en) * | 2007-12-27 | 2009-07-01 | 深圳华为通信技术有限公司 | Method for switching digital channel and device for processing digital video |
| US20110173670A1 (en) * | 2007-06-13 | 2011-07-14 | Postech Academy-Industry Foundation | Method for reducing channel change time of internet protocol television (iptv) and iptv service provision server for implementing the same |
| EP2352289A1 (en) * | 2008-11-17 | 2011-08-03 | Huawei Technologies Co., Ltd. | Method, device and system for channel switching |
| US20120072948A1 (en) * | 2009-06-30 | 2012-03-22 | Huawei Technologies Co., Ltd. | Method, equipment and system for reducing media delay |
| CN102572587A (en) * | 2012-02-22 | 2012-07-11 | 广东九联科技股份有限公司 | Set-top box and method for quickly switching channel |
| CN103139633A (en) * | 2013-02-05 | 2013-06-05 | 深圳创维数字技术股份有限公司 | Digital television receiving terminal and method for switching channel thereof |
| CN103297852A (en) * | 2013-06-07 | 2013-09-11 | 华为终端有限公司 | Channel change speed improving method, device and system |
-
2020
- 2020-04-03 CN CN202010259205.7A patent/CN111586460A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110173670A1 (en) * | 2007-06-13 | 2011-07-14 | Postech Academy-Industry Foundation | Method for reducing channel change time of internet protocol television (iptv) and iptv service provision server for implementing the same |
| CN101472154A (en) * | 2007-12-27 | 2009-07-01 | 深圳华为通信技术有限公司 | Method for switching digital channel and device for processing digital video |
| EP2352289A1 (en) * | 2008-11-17 | 2011-08-03 | Huawei Technologies Co., Ltd. | Method, device and system for channel switching |
| US20120072948A1 (en) * | 2009-06-30 | 2012-03-22 | Huawei Technologies Co., Ltd. | Method, equipment and system for reducing media delay |
| CN102572587A (en) * | 2012-02-22 | 2012-07-11 | 广东九联科技股份有限公司 | Set-top box and method for quickly switching channel |
| CN103139633A (en) * | 2013-02-05 | 2013-06-05 | 深圳创维数字技术股份有限公司 | Digital television receiving terminal and method for switching channel thereof |
| CN103297852A (en) * | 2013-06-07 | 2013-09-11 | 华为终端有限公司 | Channel change speed improving method, device and system |
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Application publication date: 20200825 |