CN111526389B - Video playing method, television and storage medium for broadcast broadband hybrid application - Google Patents
Video playing method, television and storage medium for broadcast broadband hybrid application Download PDFInfo
- Publication number
- CN111526389B CN111526389B CN202010360129.9A CN202010360129A CN111526389B CN 111526389 B CN111526389 B CN 111526389B CN 202010360129 A CN202010360129 A CN 202010360129A CN 111526389 B CN111526389 B CN 111526389B
- Authority
- CN
- China
- Prior art keywords
- video signal
- hybrid application
- video
- signal
- coding
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 55
- 238000001228 spectrum Methods 0.000 claims description 12
- 230000011218 segmentation Effects 0.000 claims description 10
- 230000008054 signal transmission Effects 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 39
- 230000004044 response Effects 0.000 abstract description 12
- 230000003111 delayed effect Effects 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 13
- 230000006854 communication Effects 0.000 description 10
- 238000004891 communication Methods 0.000 description 9
- 230000006870 function Effects 0.000 description 7
- 238000013478 data encryption standard Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000003993 interaction Effects 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 208000003028 Stuttering Diseases 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000007476 Maximum Likelihood Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000003709 image segmentation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Images
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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234309—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 or from Quicktime to Realvideo
-
- 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
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption
-
- 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
-
- 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 or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
-
- 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 or rendering scenes according to encoded video stream scene graphs
- H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a video playing method for broadcast broadband mixed application, which comprises the following steps: receiving a high frequency video signal transmitted by a service provider broadcasting a broadband hybrid application through a 5G network when video source input is detected; carrying out source coding, encryption, channel coding and signal modulation on the high-frequency video signal to obtain a modulated video signal; and performing video playing on the modulated video signal by using the broadcast broadband hybrid application. The invention also discloses a television and a computer readable storage medium. When the broadcast broadband hybrid application is used for video playing, data transmission is carried out through the 5G network, the phenomenon that the video source playing is jammed and response is delayed due to the fact that the transmission rate is low when data transmission modes such as broadcasting or broadband are adopted is avoided, the data transmission rate is improved, and the smoothness and the response sensitivity of video playing are improved.
Description
Technical Field
The present invention relates to the field of television technologies, and in particular, to a video playing method for broadcast broadband hybrid applications, a television, and a computer-readable storage medium.
Background
With the continuous development of media digitization and high-definition technology, ultra-high-definition televisions are increasingly popularized. The higher the definition of the content of the television broadcasting program is, the larger the data volume is, and the higher the transmission rate of the required network bandwidth is.
HBBTV, as a broadcast independent application, downloads over broadband and accesses all data (e.g., video, audio, teletext, etc.) associated with it over a broadband channel and provides corresponding interaction. The existing HBBTV applications all perform interactive response under a common broadband, and due to the fact that the transmission rate and the bandwidth are low, the problems of picture stutter and delayed response often occur. The highest transmission rate of the current Ethernet is only 1000Mbps, and the transmission and playing requirements of an ultra-high definition film source in HBBTV cannot be met.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a video playing method of a broadcast broadband hybrid application, a television and a computer readable storage medium, and aims to solve the problems of stutter in playing a film source and delayed response caused by data transmission of the broadcast broadband hybrid application in a broadcast broadband mode in the prior art.
To achieve the above object, the present invention provides a video playing method for broadcasting broadband hybrid applications, the method comprising the steps of:
receiving a high frequency video signal transmitted by a service provider broadcasting a broadband hybrid application through a 5G network when video source input is detected;
carrying out source coding, encryption, channel coding and signal modulation on the high-frequency video signal to obtain a modulated video signal;
and performing video playing on the modulated video signal by using the broadcast broadband hybrid application.
Optionally, the step of playing the modulated video signal using the broadcast broadband hybrid application includes:
transmitting the modulated video signal to a server to which a service provider of the broadcast broadband hybrid application is connected;
receiving a decoded video signal obtained by a server performing signal demodulation, channel decoding, decryption and source decoding on the modulated video signal;
and performing video playing on the decoded video signal by using the broadcast broadband hybrid application.
Optionally, the step of performing source coding, encryption, channel coding, and signal modulation on the high-frequency video signal to obtain a modulated video signal includes:
performing source coding on the high-frequency video signal by using a variable image region segmentation algorithm to obtain a coded video signal;
and encrypting, channel coding and signal modulating the coded signal source to obtain a modulated video signal.
Optionally, the source coding the high-frequency video signal by using a variable image region segmentation algorithm to obtain a coded video signal includes:
performing recursive segmentation on an image area of the video source of the broadcast broadband hybrid application according to a quadtree data structure to obtain segmented image blocks;
and coding the divided image blocks to divide each image into tree coding block groups with different coding image blocks to obtain a coded video signal.
Optionally, the step of performing source coding, encryption, channel coding, and signal modulation on the high-frequency video signal to obtain a modulated video signal includes:
carrying out source coding on the high-frequency video signal to obtain a video signal subjected to source coding;
encrypting the video signal after the information source coding by using a symmetric encryption algorithm to obtain an encrypted video signal;
and carrying out channel coding and signal modulation on the encrypted video signal to obtain a modulated video signal.
Optionally, the step of playing the modulated video signal using the broadcast broadband hybrid application includes:
transmitting the modulated video signal to a server through a 5G network, so that the server can demodulate the modulated video signal and decode a channel, and decrypting the video signal after channel decoding based on a cipher text and a key generated when the symmetric encryption algorithm is used for encrypting;
receiving a decoded video signal obtained by performing information source decoding on the decrypted video signal by a server;
and carrying out video playing on the decoded video signal by using the broadcast broadband hybrid application.
Optionally, the step of performing source coding, encryption, channel coding, and signal modulation on the high-frequency video signal to obtain a modulated video signal includes:
determining a target frequency spectrum of signal transmission based on a 5G chip embedded in a television;
carrying out source coding, encryption and channel coding on the high-frequency video signal to obtain a video signal subjected to channel coding;
and modulating the video signal after the channel coding to the determined target frequency spectrum to obtain a modulated video signal.
Optionally, after the step of performing source coding, encryption, channel coding, and signal modulation on the high-frequency video signal to obtain a modulated video signal, the method includes:
and transmitting the modulated video signal to a base station through a 5G network, and transmitting the modulated video signal to a network machine room by the base station so that the network machine room transmits the received modulated video signal to a server connected with a service provider for broadcasting broadband hybrid application through the base station.
In addition, to achieve the above object, the present invention further provides a television set, which includes a memory, a processor and a video playing program of a broadcast broadband hybrid application stored on the processor and operable on the processor, wherein the processor implements the steps of the video playing method of the broadcast broadband hybrid application as described above when executing the video playing program of the broadcast broadband hybrid application.
Further, to achieve the above object, the present invention also provides a computer readable storage medium having stored thereon a video playback program of a broadcast broadband hybrid application, which when executed by a processor, implements the steps of the video playback method of the broadcast broadband hybrid application as described above.
In the embodiment of the invention, when video source input is detected, a high-frequency video signal transmitted by a service provider of the broadcast broadband hybrid application through a 5G network is received, the high-frequency video signal is subjected to source coding, encryption, channel coding and signal modulation to obtain a modulated video signal, and then the modulated video signal is subjected to video playing by using the broadcast broadband hybrid application. The 5G network is adopted to transmit data between the television and the broadcast broadband hybrid application to realize video playing, the phenomenon of pause or delay in data transmission of the broadcast broadband hybrid application through a broadcast or broadband wired network is avoided, the data transmission rate of the broadcast broadband hybrid application in video playing is improved, and the fluency and the response sensitivity in the video playing process are improved.
Drawings
Fig. 1 is a schematic structural diagram of a television in a hardware operating environment according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a first embodiment of a video playing method for broadcasting broadband hybrid applications according to the present invention;
fig. 3 is a schematic diagram illustrating interaction between a tv and a server according to an embodiment of the method for playing a video of a broadcast broadband hybrid application;
FIG. 4 is a flowchart illustrating a second embodiment of a video playing method for broadcasting broadband hybrid applications according to the present invention;
fig. 5 is a schematic diagram of a division of a variable image area according to an embodiment of a video playing method for a broadcast broadband hybrid application of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Receiving a high frequency video signal transmitted by a service provider broadcasting broadband hybrid application through a 5G network when detecting that a video source is input; carrying out source coding, encryption, channel coding and signal modulation on the high-frequency video signal to obtain a modulated video signal; and performing video playing on the modulated video signal by using the broadcast broadband hybrid application.
At present, the broadcast broadband hybrid application mainly realizes data transmission in a broadcast or bandwidth wired network manner, and cannot meet the data transmission and playing requirements when playing an ultra-high-definition film source in the broadcast broadband hybrid application. Therefore, the invention provides a video playing method, a television and a computer readable storage medium for broadcasting broadband hybrid application, wherein a service provider and a television of the broadcasting broadband hybrid application are connected to a 5G network through a 5G chip, when video source input is detected, a high-frequency video signal transmitted by the service provider of the broadcasting broadband hybrid application through the 5G network is received, the high-frequency video signal is subjected to source coding, encryption, channel coding and signal modulation to obtain a modulated video signal, and then the modulated video signal is subjected to video playing by using the broadcasting broadband hybrid application, so that the phenomena of playing card pause and delay caused when the broadcasting broadband hybrid application is connected in a wired mode such as broadcasting or broadband are avoided, and the data transmission rate of the broadcasting broadband hybrid application in the process of the broadcasting hybrid application is improved, and the fluency and the response sensitivity during video playing are improved.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a television set in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the television set may include: a communication bus 1002, a processor 1001, such as a CPU, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Optionally, the television may further include a camera, RF (Radio Frequency) circuitry, sensors, audio circuitry, a WiFi module, and so on. Such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that may adjust the brightness of the display screen according to the brightness of ambient light, and a proximity sensor that may turn off the display screen and/or the backlight when the mobile terminal is moved to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), detect the magnitude and direction of gravity when the mobile terminal is stationary, and can be used for applications (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer and tapping) and the like for recognizing the attitude of the mobile terminal; of course, the mobile terminal may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, and a temperature sensor, which are not described herein again.
Those skilled in the art will appreciate that the terminal architecture shown in fig. 1 is not intended to be limiting of a television set and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and a video playing program of a broadcast broadband hybrid application.
In the television shown in fig. 1, the network interface 1004 is mainly used for connecting to a background server and performing data communication with the background server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to invoke a video playback program of the broadcast broadband hybrid application stored in the memory 1005 and perform the following operations:
receiving a high frequency video signal transmitted by a service provider broadcasting a broadband hybrid application through a 5G network when video source input is detected;
carrying out source coding, encryption, channel coding and signal modulation on the high-frequency video signal to obtain a modulated video signal;
and performing video playing on the modulated video signal by using the broadcast broadband hybrid application.
Alternatively, the processor 1001 may call a video playback program of the broadcast broadband hybrid application stored in the memory 1005, and further perform the following operations:
transmitting the modulated video signal to a server to which a service provider of the broadcast broadband hybrid application is connected;
receiving a decoded video signal obtained by a server performing signal demodulation, channel decoding, decryption and source decoding on the modulated video signal;
and performing video playing on the decoded video signal by using the broadcast broadband hybrid application.
Alternatively, the processor 1001 may call a video playback program of the broadcast broadband hybrid application stored in the memory 1005, and further perform the following operations:
performing source coding on the high-frequency video signal by using a variable image region segmentation algorithm to obtain a coded video signal;
and encrypting, channel coding and signal modulating the coded signal source to obtain a modulated video signal.
Alternatively, the processor 1001 calls a video playback program of the broadcast broadband hybrid application stored in the memory 1005 and performs the following operations:
performing recursive segmentation on an image area of the video source of the broadcast broadband hybrid application according to a quadtree data structure to obtain segmented image blocks;
and coding the divided image blocks to divide each image into tree coding block groups with different coding image blocks to obtain a coded video signal.
Alternatively, the processor 1001 may call a video playback program of the broadcast broadband hybrid application stored in the memory 1005, and further perform the following operations:
carrying out source coding on the high-frequency video signal to obtain a video signal subjected to source coding;
encrypting the video signal after the information source coding by using a symmetric encryption algorithm to obtain an encrypted video signal;
and carrying out channel coding and signal modulation on the encrypted video signal to obtain a modulated video signal.
Alternatively, the processor 1001 may call a video playback program of the broadcast broadband hybrid application stored in the memory 1005, and further perform the following operations:
transmitting the modulated video signal to a server through a 5G network, so that the server can demodulate the modulated video signal and decode a channel, and decrypting the video signal after channel decoding based on a cipher text and a key generated when the symmetric encryption algorithm is used for encrypting;
receiving a decoded video signal obtained by performing information source decoding on the decrypted video signal by a server;
and carrying out video playing on the decoded video signal by using the broadcast broadband hybrid application.
Alternatively, the processor 1001 may call a video playback program of the broadcast broadband hybrid application stored in the memory 1005, and further perform the following operations:
determining a target frequency spectrum of signal transmission based on a 5G chip embedded in a television;
carrying out source coding, encryption and channel coding on the high-frequency video signal to obtain a video signal subjected to channel coding;
and modulating the video signal after the channel coding to the determined target frequency spectrum to obtain a modulated video signal.
Optionally, after the step of performing source coding, encryption, channel coding and signal modulation on the high-frequency video signal to obtain a modulated video signal, the processor 1001 may call a video playing program of the broadcast broadband hybrid application stored in the memory 1005, and further perform the following operations:
and transmitting the modulated video signal to a base station through a 5G network, and transmitting the modulated video signal to a network machine room by the base station so that the network machine room transmits the received modulated video signal to a server connected with a service provider for broadcasting broadband hybrid application through the base station.
Referring to fig. 2, fig. 2 is a flowchart of a video playing method for broadcasting a broadband hybrid application according to a first embodiment of the present invention, in this embodiment, the video playing method for broadcasting a broadband hybrid application includes the following steps:
step S10: receiving a high frequency video signal transmitted by a service provider broadcasting a broadband hybrid application through a 5G network when video source input is detected;
in this embodiment, the Broadcast Broadband Hybrid application is, in particular, an HBBTV (Hybrid Broadcast/Broadcast band TV) application, and the HBBTV application is a Broadcast-independent application program, is not associated with any Broadcast service, can download and access data such as video, audio, and graphics and text related to the Broadcast service through a Broadband, and supports interactive response. The conventional HBBTV application carries out interactive response under a common bandwidth, and due to the fact that the transmission rate and the bandwidth of the common bandwidth are low, a picture is blocked frequently when a high-definition or ultra-high-definition film source is played. Therefore, in this embodiment, the HBBTV application is applied to a television set embedded with a 5G chip, and a service provider broadcasting a broadband hybrid application and the television set can be simultaneously accessed to a 5G network through the 5G chip, so as to perform data transmission through the 5G network, where the data transmission may include uploading and downloading of data.
When a television detects that a video source is input, if a high-frequency video signal transmitted by a service provider for broadcasting broadband hybrid application through a 5G network is to be received, firstly, whether the 5G chip can normally work is detected, and whether the 5G chip can normally communicate through a base station is tested. When the 5G chip can work normally or the 5G chip and a base station can communicate normally, data transmission is preferably carried out through the 5G network. If data transmission is carried out through the 5G network, the service provider of the broadcast broadband hybrid application can transmit the video information to the network room through the base station for transfer, and then the video information is transmitted to the television through the base station by the network room, so that the television can receive the high-frequency video signal transmitted by the service provider of the broadcast broadband hybrid application through the 5G network when video source input is detected. And when the 5G chip can not work normally or the 5G chip and the base station can not communicate normally, data transmission can be carried out in a wired mode such as broadcasting or broadband, so that even if the 5G network can not communicate normally, the normal playing of the video can be ensured.
Step S20: carrying out source coding, encryption, channel coding and signal modulation on the high-frequency video signal to obtain a modulated video signal;
after the tv receives the high frequency video signal transmitted by the service provider of the broadcast broadband hybrid application through the 5G network, the received high frequency video signal needs to be signal processed to improve the effectiveness, reliability, security, transmission rate, etc. of data transmission. Specifically, the method may include performing source coding on a received high-frequency video signal to improve data communication effectiveness, then encrypting the video signal subjected to the source coding to improve information transmission security, then performing channel coding on the encrypted video signal to improve information transmission reliability, and then performing signal modulation on the video signal subjected to the channel coding to modulate the video signal subjected to the channel coding to a proper frequency spectrum for data transmission.
The source coding is used for transforming the signal source symbols to reduce or eliminate the redundancy of the signal source for the purpose of improving the communication effectiveness, and specifically, algorithms such as Huffman coding, LZ coding, arithmetic coding and the like can be used for source coding, the applicable scenes of different algorithms are different, the algorithms can be selected according to specific application scenes and application requirements, and the selection is not limited herein; the encryption is to improve the security of information transmission, specifically, a standard encryption method (such as DES) can be used to encrypt the whole video stream, or selective encryption can be performed based on a video IPB frame structure or only header information is encrypted by organizing image data according to a certain structure, and the like, and the encryption can be selected according to specific application requirements; in addition, since the wireless signal is susceptible to interference, weak coverage, and the like, the transmitted data and the received data may sometimes be inconsistent, and therefore, the reliability of information transmission needs to be improved by a channel coding manner, where the channel coding manner may be convolutional coding, turbo coding, parity code, interleaving technique, repetition coding, cyclic redundancy check code, and the like, and the present embodiment is not particularly limited; in addition, because the original electrical signal at the transmitting end in the communication system usually has a very low frequency spectrum component, and is generally not suitable for being directly transmitted in a channel, the original signal usually needs to be converted into a high-frequency signal whose frequency band is suitable for channel transmission through signal modulation, and the modulation mode may be amplitude modulation, frequency modulation, or phase modulation, and may be determined according to factors such as frequency band utilization rate, power efficiency, and whether demodulation is easy, and the present disclosure is not limited herein.
In addition, the four steps of source coding, encryption, channel coding and signal modulation can be selected according to specific application requirements to perform signal processing, and not all steps need to be performed, but the sequence of the source coding, encryption, channel coding and signal modulation processing cannot be changed.
Step S30: the modulated video signal is played by applying the broadcast broadband hybrid application;
after carrying out source coding, encryption, channel coding and signal modulation on a received high-frequency signal video, transmitting the modulated video signal to a server connected with a broadcast broadband hybrid application service provider through a 5G network, then carrying out corresponding signal demodulation, channel decoding, decryption and source decoding by the server to obtain a decoded video signal, then transmitting the decoded video signal to a television, and enabling the television to play the video signal by using the broadcast broadband hybrid application through calling a corresponding data interface.
After the modulated video signal is transmitted to a server, the server receives a video signal obtained through a series of signal processing operations of signal source coding, encryption, channel coding and signal modulation, the server needs to perform reverse operation on the received modulated video signal, namely, the received modulated video signal is subjected to signal demodulation, channel decoding, decryption and signal source decoding to obtain a decoded video signal, and then the decoded video signal is transmitted to a television, so that the broadcast broadband hybrid application is applied to the television for video playing. Specifically, the signal demodulation refers to taking out an original modulated signal from a modulated high-frequency signal, and may be performed by adopting techniques such as sine wave amplitude demodulation, sine wave angle demodulation, resonance demodulation, and the like, and specifically may be determined based on a modulation condition during signal modulation; the channel decoding specifically can be based on the coding condition during channel coding and carries out channel decoding according to a minimum error probability criterion or a maximum likelihood decoding criterion and the like; the decryption process needs to be performed according to an encryption algorithm adopted during encryption, and the source decoding process needs to be performed based on an algorithm adopted by source coding, which is not specifically limited herein.
In a specific application scenario, as shown in fig. 3, the network room and the base station may be connected by cable, optical fiber, or network cable, and the base station and the tv set and the server of the service provider of the HBBTV application may be connected by electromagnetic radio wave over the air, so that the HBBTV application and the tv set may respond interactively through the 5G network. The data transmission process between the television and the server may specifically include: after carrying out source coding, encryption, channel coding and signal modulation on a received high-frequency video signal at a television node, transmitting the modulated video signal to a base station through a 5G network, transmitting the modulated video signal to a network machine room by the base station, carrying out signal transfer by the network machine room, and transmitting the received modulated video signal to the server through the base station. Further, after the server receives the modulated video signal, the received video signal is subjected to signal demodulation, channel decoding, decryption and information source decoding to obtain a decoded video signal, the decoded video signal is transmitted to the base station through a 5G network, the received decoded video signal is transmitted to a network machine room by the base station, after information interaction is carried out between the network machine room and the network machine room, the received modulated video signal is transmitted to the television through the base station, therefore, video playing is realized on the television by using the broadcast broadband hybrid application, and data transmission is carried out between the television and a server of a service provider of the broadcast broadband hybrid application through the 5G network.
In this embodiment, the service provider of the broadcast broadband hybrid application and the television are accessed to the 5G network through the 5G chip, so that when video source input is detected, a high-frequency video signal transmitted by the service provider of the broadcast broadband hybrid application through the 5G network is received, and the high-frequency video signal is subjected to source coding, encryption, channel coding and signal modulation to obtain a modulated video signal, and then the modulated video signal is subjected to video playing by using the broadcast broadband hybrid application. By using the broadcast broadband hybrid application to carry out data transmission through the 5G network in the process of video playing, the phenomenon that the video source playing is blocked and the response is delayed due to the fact that the transmission rate is low when the broadcast broadband hybrid application carries out data transmission in the modes of broadcast broadband and the like is avoided, the data transmission rate is improved, and therefore the fluency and the response sensitivity of video playing are improved.
Referring to fig. 4, fig. 4 is a flowchart illustrating a video playing method for broadcasting a broadband hybrid application according to a second embodiment of the present invention, where in this embodiment, the video playing method for broadcasting a broadband hybrid application includes the following steps:
step S11: receiving a high frequency video signal transmitted by a service provider broadcasting a broadband hybrid application through a 5G network when video source input is detected;
step S12: performing source coding on the high-frequency video signal by using a variable image region segmentation algorithm to obtain a coded video signal;
step S13: encrypting, channel coding and signal modulating the coded signal source to obtain a modulated video signal;
step S14: and performing video playing on the modulated video signal by using the broadcast broadband hybrid application.
In this embodiment, the above rangesAfter a service provider playing broadband mixed application and the television are accessed to a 5G network through the 5G chip, as audio and video required to be transmitted in a communication process are usually large, especially some ultra-high-definition video resources, in order to reduce the burden of data transmission and accelerate the data transmission efficiency, a high-efficiency video coding mode is adopted to compress video source data, on one hand, the image quality can be improved, meanwhile, high-efficiency compression can be realized, and 4K resolution is supported. The high-efficiency video coding method is to perform source coding on the high-frequency video signal by using a variable image region segmentation algorithm (an algorithm for performing image segmentation based on a variable region, such as a region growing algorithm) to obtain a coded video signal. In a specific embodiment, the image region of the video source for the broadcast broadband hybrid application may be recursively divided according to a quadtree data structure to obtain divided image blocks, and then the divided image blocks are encoded to divide each image into tree coding block groups having different coding image blocks, thereby obtaining the source-encoded video signal. The quadtree data structure is a compression coding method for raster data, and the main idea is to recursively divide a space region into n times according to four quadrants, wherein each division forms 2n×2nAnd sub-quadrant, which is not divided until the attribute values in the sub-quadrant are all the same. All sub-quadrants with the same attribute value, regardless of size, are used as the final memory cell. Specifically, with the region division example of a 64 × 64 coding block, recursive division is usually selected, and by using a quadtree structure, the division is performed into 32 × 32, 16 × 16, and 8 × 8 sub-regions, and each image is further divided into a special group of tree coding blocks, as shown in fig. 5. Typically, smaller code regions are used in detail regions (e.g., borders, etc.), while larger code regions are used in planar regions that are less predictable to change.
In another embodiment, in order to ensure that the high definition video resources of the HBBTV operator are not stolen during the data transmission process and protect the copyright information, the video signal after the signal source coding needs to be encrypted, and specifically, a symmetric encryption algorithm can be used to encrypt the video signal after the signal source coding to obtain the encrypted video signal. The symmetric Encryption Algorithm is an Encryption method based on a single-key cryptosystem, and the same key can be used for Encryption and decryption of information at the same time, and can comprise Data Encryption Standard (DES), Triple Data Encryption Algorithm (3 DES), Advanced Encryption Standard (AES), and the like. In this embodiment, the symmetric encryption algorithm is particularly AES. The process of encrypting data by using AES is specifically as follows: if the encryption function of the AES is E, C is E (K, P), where P is plaintext, K is a key, and C is ciphertext, that is, the plaintext P and the key K are input as parameters of the encryption function, the encryption function E outputs the ciphertext C, and then the video signal after source encoding is encrypted based on the output ciphertext C. Correspondingly, if a symmetric encryption algorithm is used for encryption in the processes of source coding, encryption, channel coding and signal modulation, decryption is also performed based on the algorithm used for encryption in the processes of signal demodulation, channel decoding, decryption and source decoding. Because the AES symmetric encryption algorithm is adopted during encryption, the server can firstly demodulate and decode a channel of a received modulated video signal after the television transmits the modulated video signal to the server through a 5G network, then decrypt the channel-decoded video signal based on a cipher text and a secret key generated during encryption to obtain a decrypted video signal, then perform source decoding on the decrypted video signal to obtain a decoded video signal, and finally transmit the decoded video signal to the television through the 5G network so as to play the decoded video signal by applying the broadcast broadband hybrid application. Specifically, if the AES decryption function at the receiving end is D, P is D (K, C), where C is the ciphertext, K is the key, and P is the plaintext, that is, the ciphertext C and the key K are input as parameters of the decryption function, the decryption function outputs the plaintext P, which is the source HBBTV video data, so as to obtain the decrypted video signal.
In yet another embodiment, since the frequency spectrums of 5G signal transmissions of different operators are different, in order to avoid mutual crossing, it is necessary to determine, based on the 5G network operator corresponding to the 5G chip embedded in the television, a frequency spectrum corresponding to the current operator and having no crossing with other operators, and determine it as a target frequency spectrum (e.g., 2515 MHz-2675 MHz) of the signal transmission. Then, when receiving a high-frequency video signal transmitted by a service provider of the broadcast broadband hybrid application through a 5G network, performing source coding, encryption and channel coding on the video source to obtain a channel-coded video signal, modulating the channel-coded video signal to a determined target frequency spectrum to obtain a modulated video signal, transmitting the modulated video signal to a server corresponding to the broadcast broadband hybrid application through the 5G network, so that the server performs signal demodulation, channel decoding, decryption and source decoding on the received modulated video signal, and transmits the decoded video signal to a television through the 5G network to perform video playing on the modulated video signal by using the broadcast broadband hybrid application.
In this embodiment, the service provider of the broadcast broadband hybrid application and the television are accessed to the 5G network through the 5G chip, so as to receive the high-frequency video signal transmitted by the service provider of the broadcast broadband hybrid application through the 5G network when video source input is detected, then perform source coding, encryption, channel coding and signal modulation on the high-frequency video signal to obtain a modulated video signal, and then perform video playing on the modulated video signal by using the broadcast broadband hybrid application, so that during the process of performing video playing by using the broadcast broadband hybrid application, video data transmission is performed through the 5G network and the source coding is performed through a variable image region segmentation algorithm on the video source, video playing stuck response delay caused by broadcast broadband and other modes is avoided, and data transmission efficiency is improved, and the fluency and the responsivity of video playing are improved.
In addition, an embodiment of the present invention further provides a television, where the television includes a memory, a processor, and a video playing program of a broadcast broadband hybrid application stored on the processor and executable on the processor, and the processor implements the steps of the video playing method of the broadcast broadband hybrid application when executing the video playing program of the broadcast broadband hybrid application.
Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, on which a video playing program of a broadcast broadband hybrid application is stored, and when being executed by a processor, the method for playing a video of a broadcast broadband hybrid application as described above is implemented.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, a television, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A video playing method of a broadcast broadband hybrid application is characterized in that the broadcast broadband hybrid application is applied to a television, a 5G chip is embedded in the television, and the video playing of the broadcast broadband hybrid application comprises the following steps:
when the television detects that a video source is input, the television receives a high-frequency video signal transmitted by a service provider for broadcasting broadband hybrid application through a 5G network;
the television carries out information source coding, encryption, channel coding and signal modulation on the high-frequency video signal to obtain a modulated video signal;
the modulated video signal is played by applying the broadcast broadband hybrid application;
wherein the step of playing the modulated video signal using the broadcast broadband hybrid application comprises:
transmitting the modulated video signal to a server to which a service provider of the broadcast broadband hybrid application is connected;
receiving a decoded video signal obtained by a server performing signal demodulation, channel decoding, decryption and source decoding on the modulated video signal;
and performing video playing on the decoded video signal by using the broadcast broadband hybrid application.
2. The method for playing video of a broadcast broadband hybrid application according to claim 1, wherein the step of source coding, encrypting, channel coding and signal modulating the high frequency video signal to obtain a modulated video signal comprises:
performing source coding on the high-frequency video signal by using a variable image region segmentation algorithm to obtain a coded video signal;
and encrypting, channel coding and signal modulating the coded signal source to obtain a modulated video signal.
3. The method of claim 2, wherein the source coding the high frequency video signal using a variable picture area partition algorithm to obtain a coded video signal comprises:
performing recursive segmentation on an image area of the video source of the broadcast broadband hybrid application according to a quadtree data structure to obtain segmented image blocks;
and coding the divided image blocks to divide each image into tree coding block groups with different coding image blocks to obtain a coded video signal.
4. The method for playing video of a broadcast broadband hybrid application according to claim 1, wherein the step of source coding, encrypting, channel coding and signal modulating the high frequency video signal to obtain a modulated video signal comprises:
carrying out source coding on the high-frequency video signal to obtain a video signal subjected to source coding;
encrypting the video signal after the information source coding by using a symmetric encryption algorithm to obtain an encrypted video signal;
and carrying out channel coding and signal modulation on the encrypted video signal to obtain a modulated video signal.
5. The method of claim 4, wherein the step of playing the modulated video signal using the broadcast broadband hybrid application comprises:
transmitting the modulated video signal to a server through a 5G network, so that the server can demodulate the modulated video signal and decode a channel, and decrypting the video signal after channel decoding based on a cipher text and a key generated when the symmetric encryption algorithm is used for encrypting;
receiving a decoded video signal obtained by performing information source decoding on the decrypted video signal by a server;
and carrying out video playing on the decoded video signal by using the broadcast broadband hybrid application.
6. The method for playing video of a broadcast broadband hybrid application according to claim 1, wherein the step of source coding, encrypting, channel coding and signal modulating the high frequency video signal to obtain a modulated video signal comprises:
determining a target frequency spectrum of signal transmission based on a 5G chip embedded in a television;
carrying out source coding, encryption and channel coding on the high-frequency video signal to obtain a video signal subjected to channel coding;
and modulating the video signal after the channel coding to the determined target frequency spectrum to obtain a modulated video signal.
7. The method of claim 1, wherein said step of source coding, encrypting, channel coding, and signal modulating said high frequency video signal to obtain a modulated video signal is followed by:
and transmitting the modulated video signal to a base station through a 5G network, and transmitting the modulated video signal to a network machine room by the base station so that the network machine room transmits the received modulated video signal to a server connected with a service provider for broadcasting broadband hybrid application through the base station.
8. A television set comprising a memory, a processor and a video playback program of a broadcast broadband hybrid application stored on the memory and executable on the processor, the processor implementing the steps of the video playback method of a broadcast broadband hybrid application as claimed in any one of claims 1 to 7 when executing the video playback program of the broadcast broadband hybrid application.
9. A computer readable storage medium, having stored thereon a video playback program of a broadcast broadband hybrid application, which when executed by a processor implements the steps of the video playback method of a broadcast broadband hybrid application according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010360129.9A CN111526389B (en) | 2020-04-29 | 2020-04-29 | Video playing method, television and storage medium for broadcast broadband hybrid application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010360129.9A CN111526389B (en) | 2020-04-29 | 2020-04-29 | Video playing method, television and storage medium for broadcast broadband hybrid application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111526389A CN111526389A (en) | 2020-08-11 |
| CN111526389B true CN111526389B (en) | 2022-02-15 |
Family
ID=71905507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010360129.9A Active CN111526389B (en) | 2020-04-29 | 2020-04-29 | Video playing method, television and storage medium for broadcast broadband hybrid application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111526389B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299762A (en) * | 2010-06-22 | 2011-12-28 | 中兴通讯股份有限公司 | Wireless NGB (next generation broadcasting network) system and adaptive regulating method of channels |
| CN106851338A (en) * | 2016-12-30 | 2017-06-13 | 中广热点云科技有限公司 | The safe transmission method and system of a kind of multimedia broadcasting video |
| CN107318052A (en) * | 2017-07-12 | 2017-11-03 | 深圳Tcl新技术有限公司 | Player method, television set and the storage medium of television video |
| CN108495179A (en) * | 2018-04-11 | 2018-09-04 | 海信电子科技（深圳）有限公司 | A method of to broadcast and broadband mixing performance recording and playback |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070250900A1 (en) * | 2006-04-07 | 2007-10-25 | Andrew Marcuvitz | Media gateway and server |
-
2020
- 2020-04-29 CN CN202010360129.9A patent/CN111526389B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299762A (en) * | 2010-06-22 | 2011-12-28 | 中兴通讯股份有限公司 | Wireless NGB (next generation broadcasting network) system and adaptive regulating method of channels |
| CN106851338A (en) * | 2016-12-30 | 2017-06-13 | 中广热点云科技有限公司 | The safe transmission method and system of a kind of multimedia broadcasting video |
| CN107318052A (en) * | 2017-07-12 | 2017-11-03 | 深圳Tcl新技术有限公司 | Player method, television set and the storage medium of television video |
| CN108495179A (en) * | 2018-04-11 | 2018-09-04 | 海信电子科技（深圳）有限公司 | A method of to broadcast and broadband mixing performance recording and playback |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111526389A (en) | 2020-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7716662B2 (en) | System and method for generating a set top box code download step sequence | |
| US20200296440A1 (en) | Qr codes for guided service authorization | |
| US20110099591A1 (en) | Secure wireless pairing of digital tv short-range transmitter and receiver | |
| US11936959B2 (en) | Emulated television tuner | |
| KR20080007511A (en) | Method and apparatus for caching access information for faster digital cable tuning | |
| US7487354B2 (en) | Methods and systems for using digital signatures in uniform resource locators | |
| CA3028354C (en) | Systems and methods for communicating user settings in conjunction with execution of an application | |
| US11457254B2 (en) | Systems and methods for secure communications between media devices | |
| US20080229375A1 (en) | Locally stored video content having a video resolution associated with remote devices | |
| US20230328531A1 (en) | Secure pairing of wireless devices | |
| CN113747183A (en) | Live video sharing method and system and readable storage medium | |
| US20090228709A1 (en) | Systems and methods for using transport stream splicing for programming information security | |
| JP2016174340A (en) | Receiver, receiving method, and program | |
| US9363538B2 (en) | Apparatus, systems and methods for remote storage of media content events | |
| CN111526389B (en) | Video playing method, television and storage medium for broadcast broadband hybrid application | |
| KR102529153B1 (en) | Receiving device, sending device and data processing method | |
| US11451854B2 (en) | Dongle to convert formats to ATSC 3.0 low power wireless | |
| US11134307B2 (en) | Image processing apparatus and control method thereof | |
| US10873773B2 (en) | Countermeasure for cryptographic cribs | |
| JP2013150147A (en) | Encryption device, decryption device, encryption program, and decryption program | |
| KR20060088131A (en) | Methods and apparatuses for transmitting data in a television broadcast | |
| CN109640121A (en) | A kind of television system, programme signal processing method, device, equipment and medium | |
| JP6450974B2 (en) | Reception device, reception method, and reception program | |
| US20230252110A1 (en) | Efficient media stream encryption providing full content protection | |
| CN113079149A (en) | Stream media data encryption transmission method, decryption method, sending end and receiving end |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | 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 |