CN105430474A - Channel previewing method and device - Google Patents
Channel previewing method and device Download PDFInfo
- Publication number
- CN105430474A CN105430474A CN201510869501.8A CN201510869501A CN105430474A CN 105430474 A CN105430474 A CN 105430474A CN 201510869501 A CN201510869501 A CN 201510869501A CN 105430474 A CN105430474 A CN 105430474A
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- program
- region
- key frame
- picture
- channel
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000000007 visual effect Effects 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
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
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
- H04N21/4316—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
-
- 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
-
- 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440263—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA
-
- 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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/854—Content authoring
- H04N21/8549—Creating video summaries, e.g. movie trailer
Abstract
The invention provides a method and a device for channel preview, wherein the method comprises the following steps: dividing a display picture area into a main picture area, a program information area and a sub-picture area in advance; playing a picture of a first program in the main picture area; acquiring a channel preview signal, and displaying program introduction information of a first program played by the main picture in the program information area; acquiring a channel switching signal, determining a second program corresponding to the channel switching signal, and displaying program introduction information of the second program in the program information area; and judging whether the first program is the same as the second program or not, and if so, playing the picture of the second program in the sub-picture area. The invention can realize the simultaneous preview of the program information and the picture information of the channel, thereby enabling the channel preview to be more visual.
Description
Technical field
The present invention relates to TV technology, particularly a kind of method and apparatus of band prebrowsing.
Background technology
Along with the development of TV tech, TV programme gets more and more, and understands the content of each channel in previewing program menu when viewing.
By providing channel designation in program guide, time and channel is current just carries out band prebrowsing at the programme information such as title of broadcast program.Visible, user can only carry out association by Word message, cannot get information about the content that channel is being play.
Summary of the invention
The invention provides a kind of method and apparatus of band prebrowsing, can the simultaneously word of preview channel and image information.
First aspect, embodiments provides a kind of method of band prebrowsing, is key frame region, programme information region and sprite region in advance by display frame Region dividing; Comprise the following steps:
First segment object picture is play in described key frame region;
Obtain band prebrowsing signal, in described programme information region, show the first segment object program description information that described key frame is play;
Obtain channel switch signal, determine the second program corresponding with described channel switch signal, in described programme information region, show the program description information of second program;
Judge that whether described first program is identical with described second program, if different, play the picture of second program in described sprite region.
Preferably,
Before the picture of described sprite region display second program, comprise further:
Obtain the multi-path video stream corresponding to the first program and second program, by multipath decoding, the video flowing of the channel of the first program and second program is decoded respectively.
Preferably,
Before the picture of described sprite region display second program, comprise further:
Extract each key frame of the video stream data of the channel of second program, the pixel extracting in key frame the joint of the capable and integral multiple row of the integral multiple being positioned at N generates the downscaled images of N*N/mono-of new original size, and wherein Integer N is that key frame and sprite ratio round up gained.
Second aspect, the invention provides a kind of device of band prebrowsing, comprising:
Division unit, for being key frame region, programme information region and sprite region in advance by display frame Region dividing;
Signal input unit, for obtaining band prebrowsing signal, sends to picture output control unit by the band prebrowsing signal of acquisition; And, obtain channel switch signal, the channel switch signal of acquisition is sent to picture output control unit;
Picture output control unit, plays first segment object picture for controlling in described key frame region; After receiving the band prebrowsing signal that described signal input unit sends, in described programme information region, show the first segment object program description information that described key frame is play; After receiving the channel switch signal that described signal input unit sends, determine the second program corresponding with described channel switch signal, in described programme information region, show the program description information of second program; Judge that whether described first program is identical with described second program, if different, play the picture of second program in described sprite region.
Preferably, comprise further:
Decoding unit, for obtaining the multi-path video stream corresponding to the first program and second program, by multipath decoding, decodes respectively to the video flowing of the channel of the first program and second program; The first program decoded and second program are exported to described picture output control unit.
Preferably, comprise further:
Unit for scaling, for extracting each key frame of the video stream data of the channel of second program, the pixel extracting in key frame the joint of the capable and integral multiple row of the integral multiple being positioned at N generates the downscaled images of N*N/mono-of new original size, wherein Integer N is that key frame and sprite ratio round up gained, and the described downscaled images of described second program is exported to described picture output control unit.
Visible, due to the method for the band prebrowsing that the embodiment of the present invention proposes, in programme information region, first segment object program description information is shown after obtaining band prebrowsing signal, in programme information region, the program description information of second program is shown after obtaining channel switch signal, and judge that whether the first program is identical with second program, if different, the picture of second program is play in sprite region, thus can the simultaneously programme information of preview channel and image information, thus make band prebrowsing more directly perceived.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of the band prebrowsing that the embodiment of the present invention provides;
Fig. 2 is the method flow diagram of the band prebrowsing that another embodiment of the present invention provides;
Fig. 3 is the apparatus structure schematic diagram of the band prebrowsing that the embodiment of the present invention provides;
Fig. 4 is the apparatus structure schematic diagram of the band prebrowsing that another embodiment of the present invention provides;
Fig. 5 is the apparatus structure schematic diagram of the band prebrowsing that further embodiment of this invention provides.
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, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiments providing a kind of method of band prebrowsing, as shown in Figure 1, is key frame region, programme information region and sprite region by display frame Region dividing in advance; Comprise the following steps:
Step 101: play first segment object picture in key frame region;
Step 102: obtain band prebrowsing signal, shows the first segment object program description information that key frame is play in programme information region;
Step 103: obtain channel switch signal, determine the second program corresponding with channel switch signal, show the program description information of second program in programme information region;
Step 104: judge that whether the first program is identical with described second program, if different, plays the picture of second program in sprite region.
Visible, due to the method for the band prebrowsing that the embodiment of the present invention proposes, in programme information region, first segment object program description information is shown after obtaining band prebrowsing signal, in programme information region, the program description information of second program is shown after obtaining channel switch signal, and judge that whether the first program is identical with second program, if different, the picture of second program is play in sprite region, thus can the simultaneously programme information of preview channel and image information, thus make band prebrowsing more directly perceived.
In a preferred embodiment of the invention, in order to obtain the video information of channel, before the picture of sprite region display second program, comprise further: obtain the multi-path video stream corresponding to the first program and second program, pass through multipath decoding, the video flowing of the channel of the first program and second program is decoded respectively, thus realizes the acquisition to the video information of channel.
In a preferred embodiment of the invention, in order to compress the video of second program, before the picture of sprite region display second program, comprise further: each key frame extracting the video stream data of the channel of second program, the pixel extracting in key frame the joint of the capable and integral multiple row of the integral multiple being positioned at N generates the downscaled images of N*N/mono-of new original size, wherein Integer N is that key frame and sprite ratio round up gained, thus realizes the compression to the video of second program.
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Embodiments provide a kind of method of band prebrowsing, be key frame region, programme information region and sprite region by display frame Region dividing in advance, as shown in Figure 2, the method can comprise the following steps:
Step 201: play first segment object picture in key frame region.
Step 202: obtain band prebrowsing signal, shows the first segment object program description information that key frame is play in programme information region.
In the present embodiment, band prebrowsing signal can be produced by specified button by remote controller.Such as, specified button name is called " preview ", and after pressing this button, remote controller sends band prebrowsing signal.
Wherein, program description information can comprise channel name, the relevant informations such as the program names of the program play and Pgmtime.Such as, programme information is: CCTV5, sports express, 12:00-12:30.
Step 203: obtain channel switch signal, determine the second program corresponding with channel switch signal, show the program description information of second program in programme information region.
In the present embodiment, channel switch signal can be sent by remote controller.Such as, press remote controller " on ", D score key or numerical key send channel switch signal.
Step 204: judge that whether the first program is identical with second program, if different, performs step 205, if identical, terminates current process.
In the present embodiment, can judge that whether the first program is identical with second program by program description information.
Step 205: obtain the multi-path video stream corresponding to the first program and second program, by multipath decoding, decodes respectively to the video flowing of the channel of the first program and second program.
In the present embodiment, in order to reduce video stream file shared bandwidth in actual transmissions, and the space shared by storing, video stream file can be play on picture by decoding according to after the compression of certain compression algorithm again.
Step 206: each key frame extracting the video stream data of the channel of second program, the pixel extracting in key frame the joint of the capable and integral multiple row of the integral multiple being positioned at N generates the downscaled images of N*N/mono-of new original size, and wherein Integer N is that key frame and sprite ratio round up gained.
Step 207: the picture playing second program at sprite.
The embodiment of the present invention also proposed a kind of band prebrowsing device, and as shown in Figure 3, this band prebrowsing device comprises:
Division unit 301, for being key frame region, programme information region and sprite region in advance by display frame Region dividing;
Signal input unit 302, for obtaining band prebrowsing signal, sends to picture output control unit by the band prebrowsing signal of acquisition; And, obtain channel switch signal, the channel switch signal of acquisition is sent to picture output control unit;
Picture output control unit 303, plays first segment object picture for controlling in described key frame region; After receiving the band prebrowsing signal that described signal input unit sends, in described programme information region, show the first segment object program description information that described key frame is play; After receiving the channel switch signal that described signal input unit sends, determine the second program corresponding with described channel switch signal, in described programme information region, show the program description information of second program; Judge that whether described first program is identical with described second program, if different, play the picture of second program in described sprite region.
In embodiments of the present invention, in order to obtain the video information of channel, as shown in Figure 4, this device also comprises:
Decoding unit 401, for obtaining the multi-path video stream corresponding to the first program and second program, by multipath decoding, decodes respectively to the video flowing of the channel of the first program and second program; The first program decoded and second program are exported to described picture output control unit.
In embodiments of the present invention, in order to compress the video of second program, as shown in Figure 5, this device also comprises:
Unit for scaling 501, for extracting each key frame of the video stream data of the channel of second program, the pixel extracting in key frame the joint of the capable and integral multiple row of the integral multiple being positioned at N generates the downscaled images of N*N/mono-of new original size, wherein Integer N is that key frame and sprite ratio round up gained, and the described downscaled images of described second program is exported to described picture output control unit.
In sum, the embodiment of the present invention at least can realize following effect:
1, in the embodiment of the present invention, the method of the band prebrowsing proposed, in programme information region, first segment object program description information is shown after obtaining band prebrowsing signal, in programme information region, the program description information of second program is shown after obtaining channel switch signal, and judge that whether the first program is identical with second program, if different, the picture of second program is play in sprite region, thus can the simultaneously programme information of preview channel and image information, thus make band prebrowsing more directly perceived.
2, in the embodiment of the present invention, in order to obtain the video information of channel, before the picture of sprite region display second program, obtain the multi-path video stream corresponding to the first program and second program, pass through multipath decoding, the video flowing of the channel of the first program and second program is decoded respectively, thus the acquisition of the video information to channel can be realized.
3, in the embodiment of the present invention, in order to compress the video of second program, before the picture of sprite region display second program, comprise further: each key frame extracting the video stream data of the channel of second program, the pixel extracting in key frame the joint of the capable and integral multiple row of the integral multiple being positioned at N generates the downscaled images of N*N/mono-of new original size, wherein Integer N is that key frame and sprite ratio round up gained, thus can realize the compression of the video to second program.
4, in the embodiment of the present invention, in order to reduce video stream file shared bandwidth in actual transmissions, and the space shared by storing, video stream file can be play on picture by decoding according to after the compression of certain compression algorithm again, thus video stream file shared bandwidth in actual transmissions can be reduced, and the space shared by storing.
5, in the embodiment of the present invention, owing to extracting each key frame of the video stream data of the channel of second program, the pixel extracting in key frame the joint of the capable and integral multiple row of the integral multiple being positioned at N generates the downscaled images of N*N/mono-of new original size, wherein Integer N is that key frame and sprite ratio round up gained, thus can carry out convergent-divergent according to the video of the ratio sprite of key frame and sprite.
Finally it should be noted that: the foregoing is only preferred embodiment of the present invention, only for illustration of technical scheme of the present invention, be not intended to limit protection scope of the present invention.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., be all included in protection scope of the present invention.
Claims (6)
1. a method for band prebrowsing, is characterized in that, is key frame region, programme information region and sprite region in advance by display frame Region dividing; Comprise the following steps:
S1: play first segment object picture in described key frame region;
S2: obtain band prebrowsing signal, shows the first segment object program description information that described key frame is play in described programme information region;
S3: obtain channel switch signal, determine the second program corresponding with described channel switch signal, show the program description information of second program in described programme information region;
S4: judge that whether described first program is identical with described second program, if different, plays the picture of second program in described sprite region.
2. method according to claim 1, is characterized in that, described before the picture of described sprite region display second program, comprises further:
Obtain the multi-path video stream corresponding to the first program and second program, by multipath decoding, the video flowing of the channel of the first program and second program is decoded respectively.
3. method according to claim 1, is characterized in that, described before the picture of described sprite region display second program, comprises further:
Extract each key frame of the video stream data of the channel of second program, the pixel extracting in key frame the joint of the capable and integral multiple row of the integral multiple being positioned at N generates the downscaled images of N*N/mono-of new original size, and wherein Integer N is that key frame and sprite ratio round up gained.
4. a device for band prebrowsing, is characterized in that, comprising:
Division unit, for being key frame region, programme information region and sprite region in advance by display frame Region dividing;
Signal input unit, for obtaining band prebrowsing signal, sends to picture output control unit by the band prebrowsing signal of acquisition; And, obtain channel switch signal, the channel switch signal of acquisition is sent to picture output control unit;
Picture output control unit, plays first segment object picture for controlling in described key frame region; After receiving the band prebrowsing signal that described signal input unit sends, in described programme information region, show the first segment object program description information that described key frame is play; After receiving the channel switch signal that described signal input unit sends, determine the second program corresponding with described channel switch signal, in described programme information region, show the program description information of second program; Judge that whether described first program is identical with described second program, if different, play the picture of second program in described sprite region.
5. the device of band prebrowsing according to claim 4, is characterized in that, comprises further:
Decoding unit, for obtaining the multi-path video stream corresponding to the first program and second program, by multipath decoding, decodes respectively to the video flowing of the channel of the first program and second program; The first program decoded and second program are exported to described picture output control unit.
6. the device of band prebrowsing according to claim 4, is characterized in that, comprises further:
Unit for scaling, for extracting each key frame of the video stream data of the channel of second program, the pixel extracting in key frame the joint of the capable and integral multiple row of the integral multiple being positioned at N generates the downscaled images of N*N/mono-of new original size, wherein Integer N is that key frame and sprite ratio round up gained, and the described downscaled images of described second program is exported to described picture output control unit.
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CN201510869501.8A CN105430474A (en) | 2015-12-02 | 2015-12-02 | Channel previewing method and device |
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CN201510869501.8A CN105430474A (en) | 2015-12-02 | 2015-12-02 | Channel previewing method and device |
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Cited By (1)
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CN114125570A (en) * | 2021-11-23 | 2022-03-01 | 西安诺瓦星云科技股份有限公司 | Player program switching method and device, electronic equipment and storage medium |
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