CN111277855A - Multi-screen simultaneous watching implementation method based on digital broadcast television - Google Patents
Multi-screen simultaneous watching implementation method based on digital broadcast television Download PDFInfo
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- CN111277855A CN111277855A CN202010145612.5A CN202010145612A CN111277855A CN 111277855 A CN111277855 A CN 111277855A CN 202010145612 A CN202010145612 A CN 202010145612A CN 111277855 A CN111277855 A CN 111277855A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000010276 construction Methods 0.000 abstract description 4
- 238000012790 confirmation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 101150014691 PPARA gene Proteins 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2187—Live feed
-
- 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
-
- 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
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
-
- 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
-
- 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
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
- H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
- H04N21/43635—HDMI
-
- 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
- H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
-
- 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
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
- H04N21/4438—Window management, e.g. event handling following interaction with the user interface
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Software Systems (AREA)
- Computer Networks & Wireless Communication (AREA)
- Databases & Information Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a multi-screen simultaneous watching implementation method based on digital broadcast television, which comprises the following steps: the set-top box terminal downloads a multi-screen co-watching configuration file corresponding to the region from the front-end management platform, analyzes the multi-screen co-watching configuration file, and sets multi-screen co-watching live broadcast channel information at the set-top box terminal; a user opens a multi-screen simultaneous-watching interface, and a set-top box terminal reads information of multi-screen simultaneous-watching live channels; according to the information of the multi-screen simultaneous-watching live broadcast channels, the set-top box terminal selects the frequency points of the channels corresponding to the broadcast program streams for demodulation; sending the demodulated TS video stream to a decoder of a corresponding player in the set top box terminal for decoding; and the set-top box terminal HDMI interface is connected with the television and displays the multi-channel video for the user. The multi-screen simultaneous watching implementation method based on the digital broadcast television enables the cable television set top box to watch multi-channel live channels simultaneously, and reduces the complexity and cost of front-end platform construction.
Description
Technical Field
The invention relates to the technical field of live video, in particular to a multi-screen simultaneous watching implementation method based on digital broadcast television.
Background
At present, cable television set top box users based on digital broadcast television in the market can only watch one path of live video and cannot watch multiple paths of live video simultaneously. Some terminals are internally provided with multi-channel video clients, multi-channel integrated video streams are requested to an IPTV set-top box, so that multi-channel live broadcast channels can be watched on the terminals at the same time, the multi-channel video clients and a live broadcast server need to be customized, the live broadcast server needs an additional multi-channel video integration module, a plurality of single-channel video streams are integrated into one multi-channel video stream, and the whole live broadcast system (comprising the live broadcast server, the terminals and the set-top box) is based on a bidirectional IP network. The current digital broadcast television system receives videos in a single direction through a satellite or an optical cable and sends the videos to users through wired coaxial single-direction broadcasting, and multi-channel live broadcast videos cannot be watched at the same time through the scheme.
Disclosure of Invention
The invention aims to provide a multi-screen simultaneous watching implementation method based on digital broadcast television aiming at the defects in the prior art, so that a cable television set top box can watch multiple live channels simultaneously, and the complexity and cost of front-end platform construction are reduced.
In order to achieve the purpose of the invention, the invention adopts the following technical scheme:
a multi-screen simultaneous watching implementation method based on digital broadcast television comprises the following steps:
s1: the set-top box terminal 100 downloads a multi-screen co-watching configuration file corresponding to the region from the front-end management platform 200, analyzes the multi-screen co-watching configuration file, and sets multi-screen co-watching live channel information on the set-top box terminal 100;
s2: a user opens a multi-screen simultaneous-watching interface, and the set-top box terminal 100 reads the multi-screen simultaneous-watching live channel information;
s3: according to the multi-screen live broadcast channel information, the set-top box terminal 100 selects the frequency point of the channel corresponding to the broadcast program stream for demodulation;
s4: sending the demodulated TS video stream to a decoder of a corresponding player in the set-top box terminal 100 for decoding;
s5: the set-top terminal 100 is connected to the television 300 via an HDMI interface, and displays multiple channels of video for the user.
In addition, the invention also comprises the following auxiliary technical scheme:
the number of the players is more than or equal to the number of the screens for simultaneously watching multiple screens.
The player comprises a base player and a plurality of pip players, video pictures are arranged in the base player and cannot be superposed, and the pip players play independently.
The multi-screen simultaneous-watching interface comprises a large playing window and a plurality of small playing windows, wherein the video of the large playing window is set to be played normally, and the video of the small playing windows is forcibly set to be played line by line.
The video of the small playing window and the video of the large playing window can be interchanged by modifying the position, the size, the sequence and the transparency of the videos.
The multi-screen co-watching configuration file comprises a version number, a region code identifier, a channel classification identifier and a plurality of window position identifiers.
The user can operate and modify the plurality of channels in the channel classification in the set-top terminal 100, set the multi-screen picture and store the multi-screen picture locally in the set-top terminal 100.
The set-top terminal 100 is configured with a full-band high-frequency header and a main chip that can process multiple TS video streams simultaneously.
Compared with the prior art, the invention has the advantages that:
(1) the method comprises the steps that a multi-screen simultaneous watching configuration file corresponding to a local area is downloaded from a front-end management platform through a set top box terminal, when a multi-screen simultaneous watching function is used, the set top box terminal firstly reads channel information in a playing program, demodulates channels corresponding to the set top box terminal according to the channel information, sends demodulated TS streams to a decoder corresponding to a player for decoding, shows multi-channel videos for a user through an HDMI (high definition multimedia interface) of the set top box terminal, and achieves the purpose that a cable television set top box can watch multi-channel live channel copies at the same time. The front-end platform is only used for configuration management of preset multi-channel channels in each channel classification, and is not used for related processing of live channel video streams, so that complexity and cost of front-end platform construction are reduced.
(2) The multiple channels set in each channel classification can be set by a user according to personal preference, so that the experience of the user in watching live television is improved, and the user viscosity of the cable television is improved.
Drawings
Fig. 1 is a flow chart of a multi-screen co-watching implementation method based on digital broadcast television of the present invention.
Fig. 2 is a schematic block diagram of a method for implementing multi-screen simultaneous watching based on digital broadcast television according to the present invention.
FIG. 3 is a schematic diagram of a four-screen co-viewing interface in accordance with the present invention.
Detailed Description
The present invention will be described in further non-limiting detail with reference to the following preferred embodiments and accompanying drawings.
As shown in fig. 1 and 2, a method for implementing digital broadcast television-based multi-screen co-viewing according to a preferred embodiment of the present invention includes the following steps:
s1: the set-top box terminal 100 downloads a multi-screen co-watching configuration file corresponding to the region from the front-end management platform 200, analyzes the multi-screen co-watching configuration file, and sets multi-screen co-watching live broadcast channel information at the set-top box terminal 100;
specifically, when the set-top box terminal 100 is started for the first time, the multi-screen co-viewing configuration file corresponding to the local area needs to be downloaded from the front-end management platform 200, the multi-screen co-viewing configuration file is stored in the local storage area of the set-top box terminal 100, the multi-screen co-viewing configuration is analyzed, and the multi-screen co-viewing live channel information is set in the set-top box terminal 100.
The front-end management platform 200 presets a plurality of channel classifications for multi-screen co-viewing applications of a full-network cable television set-top box. The set-top box terminal 100 with multiple screens and the same view accesses the interface of the front-end management platform 200, and adopts the interface specification of the standard HTTP web service. The multi-screen co-viewing configuration file comprises a version number, a region code identifier, a channel classification identifier and a plurality of window position identifiers, return data of an interface adopts a standard JSON data structure, and the following format is as follows by taking four-screen co-viewing as an example:
s2: in the digital broadcast television system, videos are received in a single direction through a satellite or an optical cable and are sent to a user through wired coaxial single-direction broadcasting, and when the user opens a multi-screen co-viewing interface, the set-top box terminal 100 reads information of multi-screen co-viewing live broadcast channels.
S3: according to the information of the multi-screen simultaneous-watching live broadcast channels, the set-top box terminal 100 selects the frequency points of the channels corresponding to the broadcast program streams for demodulation;
the set-top terminal 100 is configured with a full-band high-frequency header and a master chip that can process multiple TS video streams simultaneously.
S4: sending the demodulated TS video stream to a decoder of a corresponding player in the set-top box terminal 100 for decoding;
the number of the players is more than or equal to the number of the screens for simultaneously watching multiple screens, the players specifically comprise a base player and a plurality of pip players, the video pictures are arranged in the base player and cannot be overlapped, and the pip players play independently.
S5: the set-top terminal 100 is connected to the television 300 via an HDMI interface, and displays multiple channels of video for the user.
The multi-screen simultaneous-watching interface comprises a large playing window and a plurality of small playing windows, wherein the video of the large playing window is set to be played normally, and the video of the small playing windows is forcibly set to be played line by line.
The forced progressive code is set as follows:
HI_CODEC_VIDEO_CMD_S stVdecCmd;
HI_BOOL bIsProgressive=HI_TRUE;
stVdecCmd.u32CmdID=HI_UNF_AVPLAY_SET_PROGRESSIVE_CMD;
stVdecCmd.pPara=&bIsProgressive;
if(HI_SUCCESS!=HI_UNF_AVPLAY_Invoke(hAvplay,HI_UNF_AVPLAY_INVOKE_VCODEC,&stVdecCmd))
meanwhile, the video of the small playing window and the video of the large playing window can be interchanged by modifying the position, the size, the sequence and the transparency of the videos, and not by switching channels.
In the actual use process, the user can operate and modify a plurality of channels in the channel classification in the set-top box terminal 100 according to the preference of the user, set a multi-screen picture and store the multi-screen picture locally in the set-top box terminal 100.
In this embodiment, the multi-screen co-viewing is preferably a four-screen co-viewing, the four-screen co-viewing is implemented by 4 players, wherein one base player and three pip players are provided, the four-screen co-viewing interface includes one large playing window and three small playing windows, and the front-end management platform 200 presets 8 channel classifications for the four-screen co-viewing application of the set-top box terminal 100. When a user opens the four-screen simultaneous watching, the set-top box terminal 100 first reads the four-screen simultaneous watching live channel information stored in the playing program, demodulates the corresponding channel according to the channel information, sends the demodulated TS stream to the decoder of the corresponding player for decoding, and presents four channels of video for the user through the HDMI interface of the set-top box.
When the function is used, a user can finish four screens and see all related operations by confirming 5 keys through the remote controller, and the specific operations are as follows:
when a user watches television live broadcasting in a full-screen state, the user can enter a four-screen simultaneous watching interface (as shown in fig. 3) through a remote controller key, the four-screen simultaneous watching interface comprises a large playing window and three small playing windows, the set-top box terminal 100 simultaneously decodes and plays four paths of videos in real time, and a buffering mode is not required to be adopted for any path of video.
When the focus moves to a certain playing window, outputting the live broadcast audio corresponding to the playing window, and inputting the channel number through a remote controller to switch the live broadcast channel corresponding to the playing window;
when the focus is in the small playing window, pressing a remote controller confirmation key can exchange the live channel corresponding to the small playing window with the live channel corresponding to the large playing window, and when the focus is in the large playing window, pressing the remote controller confirmation key can switch the live channel corresponding to the large playing window to full-screen playing;
the user can preset 4 channels in each category through the four-screen simultaneous watching application of the set-top box terminal 100, and the user can modify the setting and store the setting according to personal preference, so that the user can still see the user-defined channels even if the set-top box terminal 100 is powered off and restarted.
The invention discloses a multi-screen simultaneous watching implementation method based on digital broadcast television, which downloads a multi-screen simultaneous watching configuration file corresponding to a local area from a front-end management platform through a set-top box terminal, when a multi-screen simultaneous watching function is used, the set-top box terminal firstly reads channel information in a playing program, demodulates corresponding channels of the set-top box terminal according to the channel information, sends demodulated TS streams to a decoder of a corresponding player for decoding, and shows multi-channel videos for a user through an HDMI interface of the set-top box terminal, so that the set-top box of the cable television can watch multi-channel live broadcast channels simultaneously. The front-end platform is only used for configuration management of preset multi-channel channels in each channel classification, and is not used for related processing of live channel video streams, so that complexity and cost of front-end platform construction are reduced. The multiple channels set in each channel classification can be set by a user according to personal preference, so that the experience of the user in watching live television is improved, and the user viscosity of the cable television is improved.
It should be noted that the above-mentioned preferred embodiments are merely illustrative of the technical concepts and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (8)
1. A multi-screen simultaneous watching implementation method based on digital broadcast television is characterized by comprising the following steps:
s1: the method comprises the steps that a set top box terminal (100) downloads a multi-screen co-watching configuration file corresponding to a region from a front-end management platform (200), analyzes the multi-screen co-watching configuration file, and sets multi-screen co-watching live channel information on the set top box terminal (100);
s2: a user opens a multi-screen simultaneous watching interface, and the set-top box terminal (100) reads the multi-screen simultaneous watching live channel information;
s3: according to the multi-screen live broadcast channel information, the set-top box terminal (100) selects the frequency point of the channel corresponding to the broadcast program stream for demodulation;
s4: sending the demodulated TS video stream to a decoder of a corresponding player in the set-top box terminal (100) for decoding;
s5: the set-top box terminal (100) is connected with the television (300) through an HDMI interface, and displays multiple paths of videos for a user.
2. A multi-screen co-viewing implementation method based on digital broadcast television according to claim 1, wherein: the number of the players is more than or equal to the number of the screens for simultaneously watching multiple screens.
3. A multi-screen co-viewing implementation method based on digital broadcast television according to claim 2, wherein: the player comprises a base player and a plurality of pip players, video pictures are arranged in the base player and cannot be superposed, and the pip players play independently.
4. A multi-screen co-viewing implementation method based on digital broadcast television according to claim 1, wherein: the multi-screen simultaneous-watching interface comprises a large playing window and a plurality of small playing windows, wherein the video of the large playing window is set to be played normally, and the video of the small playing windows is forcibly set to be played line by line.
5. A multi-screen co-viewing implementation method based on digital broadcast television according to claim 4, wherein: the video of the small playing window and the video of the large playing window can be interchanged by modifying the position, the size, the sequence and the transparency of the videos.
6. A multi-screen co-viewing implementation method based on digital broadcast television according to claim 1, wherein: the multi-screen co-watching configuration file comprises a version number, a region code identifier, a channel classification identifier and a plurality of window position identifiers.
7. A multi-screen co-viewing implementation method based on digital broadcast television according to claim 6, wherein: the user can operate and modify a plurality of channels in the channel classification in the set-top box terminal (100), and a multi-screen picture is set and stored locally in the set-top box terminal (100).
8. A multi-screen co-viewing implementation method based on digital broadcast television according to claim 1, wherein: the set-top box terminal (100) is configured with a full-band high-frequency head and a master chip, which can process multiple TS video streams simultaneously.
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