CN106792132A - A kind of audio and video playing changing method and device - Google Patents
A kind of audio and video playing changing method and device Download PDFInfo
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- CN106792132A CN106792132A CN201611246467.XA CN201611246467A CN106792132A CN 106792132 A CN106792132 A CN 106792132A CN 201611246467 A CN201611246467 A CN 201611246467A CN 106792132 A CN106792132 A CN 106792132A
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- 238000000034 method Methods 0.000 title claims abstract description 70
- 238000001514 detection method Methods 0.000 claims description 20
- 230000006854 communication Effects 0.000 claims description 18
- 238000004891 communication Methods 0.000 claims description 17
- 230000004044 response Effects 0.000 abstract description 6
- 235000013399 edible fruits Nutrition 0.000 description 31
- 230000006870 function Effects 0.000 description 15
- 230000008569 process Effects 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 7
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- 230000006872 improvement Effects 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—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
- H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
-
- 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
- H04N21/4367—Establishing a secure communication between the client and a peripheral device or smart card
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Abstract
A kind of audio-video switching method and device are the embodiment of the invention provides, method is that first terminal receives the handover request that user sends for target audio frequency and video；And detect in the overlay area of its NFC with the presence or absence of second terminal；If it does, the data message of the target audio frequency and video is sent to above-mentioned second terminal, to cause that second terminal is played out according to the data message of the target audio frequency and video for receiving to target audio frequency and video.Using the embodiment of the present invention, first terminal and second terminal need not be attached by way of external connection, save equipment cost, simultaneously, because the data message of target audio frequency and video is directly sent to second terminal by first terminal, the handoff procedure that the response of second terminal just can be realized to target audio frequency and video need not be obtained, and whole audio frequency and video handoff procedure step is simple, improves the experience of user.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of audio and video playing changing method and device.
Background technology
With the progress and the development of electronic equipment of science and technology, the function also increasingly variation of electronic equipment is diversified
Electronic equipment can bring different experience to user.Meanwhile, with the raising of the quality of life level of user, user is in application
It is total to wish to realize preferable function in the case of operation as the few as possible electronic equipment during electronic equipment.For example, user exists
On terminal A playing audio-video (i.e. audio or video) to a certain playing progress rate when, for some reason, such as terminal A electricity it is too low,
Terminal A needs to do other things etc., and user needs to switch to the audio frequency and video to be played out on terminal B.
At present, audio and video playing is switched over generally：To need to play out the two of switching by data switch line
Individual terminal (terminal A, terminal B) is attached, and then terminal A sends one for sound currently playing in terminal A to terminal B
Video plays out the request of switching, and after the terminal B responses instructions, terminal A sends currently playing audio/video information
Terminal B is given, and then realizes the broadcasting switching to audio frequency and video, but said process is needed by outside data switch line to above-mentioned
Terminal is attached, and increased equipment cost, be simultaneously emitted by request terminal need obtain receive request terminal response it
After could complete audio and video playing switching, it is seen then that above-mentioned during switching to audio and video playing, dependence ratio between terminal
It is larger, and the above-mentioned process operation complex steps to audio and video playing switching, the experience in turn resulting in user is low.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of audio and video playing changing method and device, is broadcast with reducing audio frequency and video
The dependence between terminal during switching is put, simplifies the operating procedure of audio and video playing switching, and then improve the body of user
Test.
To reach above-mentioned purpose, the embodiment of the invention discloses a kind of audio and video playing changing method, it is applied to near
Apart from the first terminal of wireless telecommunications NFC function, the first terminal is used to play target audio frequency and video, and methods described includes：
Receive the handover request that user sends for the target audio frequency and video；
Detect that the second terminal is with NFC function and energy with the presence or absence of second terminal in the overlay area of the NFC
Enough play the terminal of the target audio frequency and video；
If it does, the data message of the target audio frequency and video is sent to the second terminal, to cause described second
Terminal is played out according to the data message of the target audio frequency and video for receiving to the target audio frequency and video.
Preferably, in the case of there is second terminal described at least two in the overlay area for detecting the NFC, institute
Stating method also includes：
By in the second terminal any one be defined as target terminal；
The data message by the target audio frequency and video is sent to the second terminal, to cause the second terminal root
The target audio frequency and video are played out according to the data message of the target audio frequency and video for receiving, including：
The data message of the target audio frequency and video is sent to the target terminal, to cause the target terminal according to connecing
The data message of the target audio frequency and video for receiving is played out to the target audio frequency and video.
Preferably, in the case of there is second terminal in the overlay area for detecting the NFC, methods described is also wrapped
Include：
Judge the second terminal whether in idle condition；
If it is, the step of execution data message by the target audio frequency and video is sent to the second terminal.
Preferably, in the case of there is second terminal in the overlay area for detecting the NFC, in the handover request
Identification information comprising default terminal type, methods described also includes：
Judge whether the corresponding identification information of the second terminal is consistent with the identification information of the default terminal type；
If consistent, the step of performing the data message by the target audio frequency and video and be sent to the second terminal.
Preferably, the data message by the target audio frequency and video is sent to the second terminal, to cause described the
Two terminals are played out according to the data message of the target audio frequency and video for receiving to the target audio frequency and video, including：
The target audio frequency and video corresponding data source address is sent to the second terminal, to cause that the second terminal exists
After receiving the data source address, the target audio frequency and video are played out by way of accessing the data source address.
Preferably, the data message by the target audio frequency and video is sent to the second terminal, to cause described the
Two terminals are played out according to the data message of the target audio frequency and video for receiving to the target audio frequency and video, including：
The target audio frequency and video corresponding data source address and the target audio frequency and video are played in the first terminal
Time point is sent to the second terminal, to cause the second terminal according to the data source address for receiving and described
Time point, by the target audio and video playing to the time point by way of accessing the data source address.
Preferably, it is described by the target audio frequency and video corresponding data source address and the target audio frequency and video described first
The time point of terminal plays is sent to the second terminal, to cause the second terminal according to the data source ground for receiving
Location and the time point, by the target audio and video playing to the time by way of accessing the data source address
Point, including：
According to default encryption rule, the target audio frequency and video corresponding data source address and the target audio frequency and video are existed
The time point that the first terminal is played is encrypted, generation encryption file；
The encryption file is sent to the second terminal, to cause that the second terminal is advised according to the decryption for matching
Operation is then decrypted to received encryption file, the data source address and time point is obtained, and according to acquisition
The data source address and the time point, by the target audio and video playing by way of accessing the data source address
To the time point.
To reach above-mentioned purpose, the embodiment of the invention also discloses a kind of audio and video playing switching device, it is applied to have
The first terminal of close range wireless communication NFC function, the first terminal is used to play target audio frequency and video, and described device includes：
Receiver module, for receiving the handover request that user sends for the target audio frequency and video；
Detection module, for whether there is second terminal in the overlay area for detecting the NFC, the second terminal is tool
There is NFC function and the terminal of the target audio frequency and video can be played；
Sending module, for the feelings that there is second terminal in the overlay area that the NFC is detected in the detection module
Under condition, the data message of the target audio frequency and video is sent to the second terminal, to cause the second terminal according to reception
To the data message of the target audio frequency and video target audio frequency and video are played out.
Preferably, described device also includes：
Determining module, for existing described at least two in the overlay area that the NFC is detected in the detection module
In the case of second terminal, by the second terminal any one be defined as target terminal；
The sending module, specifically for：
The data message of the target audio frequency and video is sent to the target terminal, to cause the target terminal according to connecing
The data message of the target audio frequency and video for receiving is played out to the target audio frequency and video.
Preferably, described device also includes：
First judge module, for having described second in the overlay area that the NFC is detected in the detection module
In the case of terminal, judge the second terminal whether in idle condition；
First trigger module, for being in the case of being, to trigger the transmission in the first judge module result of determination
Module.
Preferably, comprising the identification information of default terminal type in the handover request, described device also includes：
Second judge module, for having described second in the overlay area that the NFC is detected in the detection module
In the case of terminal, judge the corresponding identification information of the second terminal and the default terminal type identification information whether one
Cause；
Second trigger module, for being in the case of being, to trigger the transmission in the second judge module result of determination
Module.
Preferably, the sending module, specifically for：
The target audio frequency and video corresponding data source address is sent to the second terminal, to cause that the second terminal exists
After receiving the data source address, the target audio frequency and video are played out by way of accessing the data source address.
Preferably, the sending module, specifically for：
The target audio frequency and video corresponding data source address and the target audio frequency and video are played in the first terminal
Time point is sent to the second terminal, to cause the second terminal according to the data source address for receiving and described
Time point, by the target audio and video playing to the time point by way of accessing the data source address.
Preferably, the sending module, specifically for：
According to default encryption rule, the target audio frequency and video corresponding data source address and the target audio frequency and video are existed
The time point that the first terminal is played is encrypted, generation encryption file；
The encryption file is sent to the second terminal, to cause that the second terminal is advised according to the decryption for matching
Operation is then decrypted to received encryption file, the data source address and time point is obtained, and according to acquisition
The data source address and the time point, by the target audio and video playing by way of accessing the data source address
To the time point.
As fully visible, in scheme provided in an embodiment of the present invention, first terminal receives user and is sent out for target audio frequency and video
The handover request sent；And detect in the overlay area of its NFC with the presence or absence of second terminal；If it does, by the target audio frequency and video
Data message be sent to above-mentioned second terminal, to cause second terminal according to the data message pair of the target audio frequency and video for receiving
Target audio frequency and video are played out.Using the embodiment of the present invention, it is not necessary to by first terminal and second by way of external connection
Terminal is attached, and saves equipment cost, simultaneously as directly be sent to for the data message of target audio frequency and video by first terminal
Second terminal, it is not necessary to obtain the handoff procedure that the response of second terminal just can be realized to target audio frequency and video, and whole sound is regarded
Frequency handoff procedure step is simple, improves the experience of user.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
The schematic flow sheet of the audio-video switching method that Fig. 1 is provided for one embodiment of the invention；
The schematic flow sheet of the audio-video switching method that Fig. 2 is provided for another embodiment of the present invention；
The schematic flow sheet of the audio-video switching method that Fig. 3 is provided for yet another embodiment of the invention；
The schematic flow sheet of the audio-video switching method that Fig. 4 is provided for a further embodiment of the present invention；
The structural representation of the audio frequency and video switching device that Fig. 5 is provided for one embodiment of the invention；
The structural representation of the audio frequency and video switching device that Fig. 6 is provided for another embodiment of the present invention；
The structural representation of the audio frequency and video switching device that Fig. 7 is provided for yet another embodiment of the invention；
The structural representation of the audio frequency and video switching device that Fig. 8 is provided for a further embodiment of the present invention.
Specific 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 carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Below by specific embodiment, the present invention will be described in detail.
The schematic flow sheet of the audio-video switching method that Fig. 1 is provided for one embodiment of the invention；The method is applied to be had
The first terminal of close range wireless communication NFC function, the first terminal is used to play target audio frequency and video, and the method includes step
Suddenly：
S101：Receive the handover request that user sends for the target audio frequency and video.
Close range wireless communication (Near Field Communication, abbreviation NFC), NFC is also known as near-field communication, NFC
It is a kind of radiotechnics of short distance high frequency, is typically run in 20 cm distances under the frequency of 13.56MHz.NFC is by non-
Contact radio frequency identification (Radio Frequency Identification, abbreviation RFID) technology and the Technology Integration that interconnects
Develop, combining induction card reader, icah wavw and point-to-point function, can realize in short distance on one chip
It is identified with compatible terminal and data exchange from interior.
With the development and the update of terminal electronic product of electronic communication, NFC is applied to by substantial amounts of
It is exemplary, it is assumed that user possesses the mobile phone with NFC function in the terminals such as mobile phone, panel computer, Web TV fruit, TV
A, and user in the mobile phone A when playing " talk on the journey to west " video, feels that the screen of mobile phone A is smaller, thinks to be broadcast in mobile phone A
" talk on the journey to west " video put is switched on the panel computer B of user, in scheme provided in an embodiment of the present invention, is claimed currently just
It is target audio frequency and video in the audio frequency and video played, the terminal of the currently playing target audio frequency and video is called first terminal, the present invention is implemented
In the scheme that example is provided, first terminal is mobile phone A, and target audio frequency and video are " talk on the journey to west " video, then, user can be to mobile phone
A sends the handover request for " talk on the journey to west " video, therefore, the mobile phone A can receive the handover request of user's transmission.
S102：Detect that the second terminal is with NFC work(with the presence or absence of second terminal in the overlay area of the NFC
And can play the terminal of the target audio frequency and video.
As widely known bluetooth (Bluetooth) technology, NFC is also a kind of radiotechnics of short distance high frequency,
Short-range data exchange can be realized.Usual NFC can run in 20 cm distances under the frequency of 13.56MHz.
It will be appreciated to those of skill in the art that can be carried out by Passive Mode between the terminal with NFC function
Data exchange.In the passive mode, the terminal of startup NFC communication, the also referred to as initiating terminal of NFC, i.e. first terminal, whole
In communication process, first terminal provides radiofrequency field (RF-field)；Another station terminal is referred to as the purpose terminal of NFC, i.e., second eventually
End, the second terminal need not produce radiofrequency field, and use load modulation (load modulation) technology, you can with identical
Speed passes data back first terminal.Therefore, first terminal in the passive mode, can be connected and initialization procedure with identical
Detect with the presence or absence of above-mentioned second terminal in its overlay area, and can therewith set up communication.After communication is set up, first eventually
End can select 106kbps, 212kbps or 424kbps one of which transmission speed, and data exchange is carried out with second terminal.Need
It is noted that in scheme provided in an embodiment of the present invention, second terminal is with NFC function and is also equipped with playing above-mentioned
The terminal of target audio frequency and video.
After the handover request for " talk on the journey to west " video that above-mentioned mobile phone A receives user's transmission, mobile phone A detects it
With the presence or absence of the second terminal that can play " talk on the journey to west " in the coverage of the radiofrequency field that correspondence NFC is provided, it is assumed that in hand
The coverage memory storage of the radiofrequency field that machine A correspondences NFC is provided can play " talk on the journey to west " and possess the flat board of NFC function
Computer B, then, mobile phone A is able to detect that there is second terminal in the overlay area of its NFC, and second terminal is panel computer
B。
It should be noted that above-mentioned target audio frequency and video are only that the embodiment of the present invention is provided for " talk on the journey to west " video type
A specific example, target audio frequency and video can also be music type, also, the particular content of target audio frequency and video can also be it
His form, therefore the embodiment of the present invention does not do further limit to the particular content of target sound video type and target audio frequency and video
It is fixed；Meanwhile, it is above-mentioned to be only illustrated so that first terminal is as mobile phone A as an example, due to being in form right between each terminal
Deng, therefore, concrete form of the embodiment of the present invention not to first terminal and second terminal is clearly limited.
S103：In the case of there is the second terminal in the overlay area that step S102 detects the NFC, by institute
The data message for stating target audio frequency and video is sent to the second terminal, to cause the second terminal according to the mesh for receiving
The data message of mark with phonetic symbols video is played out to target audio frequency and video.
Assuming that above-mentioned mobile phone A is detected in the overlay area of its correspondence NFC has panel computer B (second terminal), then,
Mobile phone A can be set up with panel computer B and communicate, and set up after communication, and mobile phone A can believe the data of " talk on the journey to west " video
Breath is sent to panel computer B, and the data message of " talk on the journey to west " video can be the video file of " talk on the journey to west ", i.e. mobile phone A
The video file of " talk on the journey to west " is directly sent to panel computer B, then, panel computer B is received after the video file,
The video file of " talk on the journey to west " that receives can be opened in panel computer B, " talk on the journey to west " video is commenced play out.To sum up
It can be seen that, by scheme provided in an embodiment of the present invention, " talk on the journey to west " video that will can be being played in mobile phone A switches to flat
Played out on plate computer B, realize the switching to target audio frequency and video.
It is understood that with the popularization and the popularization of wireless network of movable signal, what user was played in mobile phone A
" talk on the journey to west " video is likely to be online viewing, if user be by online mode on above-mentioned mobile phone A is
Play " talk on the journey to west ", and " talk on the journey to west " video in network service end to that should have a network address, user can pass through
The network address finds the source file of " talk on the journey to west " video in network service end, and will be upper by movable signal or wireless network
State " talk on the journey to west " video for finding source file be loaded into mobile phone A in play out.
It is above-mentioned by the target sound in a kind of specific implementation provided in an embodiment of the present invention based on above-mentioned situation
The data message of video is sent to the second terminal, to cause the second terminal according to the target audio frequency and video for receiving
Data message target audio frequency and video are played out, can include：
The target audio frequency and video corresponding data source address is sent to the second terminal, to cause that the second terminal exists
After receiving the data source address, the target audio frequency and video are played out by way of accessing the data source address.
If user is if playing " talk on the journey to west " in mobile phone A by online mode, it is assumed that above-mentioned mobile phone A detection
Expire in NFC overlay areas and there is Web TV fruit C, and user is want " talk on the journey to west " video played in mobile phone A
Switch to and played out on Web TV fruit C, after handover request is sent, mobile phone A is by " talk on the journey to west " video in net for user
The corresponding network address of network service end is sent to Web TV fruit C, and now understandable to be, second terminal is：Web TV
Fruit C, data source address is：The corresponding network address of " talk on the journey to west " video.
It will be appreciated to those of skill in the art that in above-mentioned mobile phone A by the corresponding network address of " talk on the journey to west " video
It is sent to after Web TV fruit C, Web TV fruit C be able to can be looked for according to the network address for receiving in network service end
To " talk on the journey to west " video (data source), then should " talk on the journey to west " video be loaded onto Web TV fruit C in play out, i.e.,
" talk on the journey to west " video is loaded onto net by Web TV fruit C by way of accessing " talk on the journey to west " video map network address
Played out in network TV fruit, realize the handoff procedure to " talk on the journey to west " video.
By way of sending data source address to second terminal, can facilitate accurately will be in first terminal for said process
The target audio frequency and video of upper broadcasting switched to and played out in second terminal, but when generally being played out in second terminal often all
Be restart play, i.e., accent play, then, user if played on first terminal a period of time if, accent
Broadcasting will cause user to watch the video pictures played again, lose time, if user is not desired to viewing and has played
The picture crossed needs that user is manual to be adjusted, and Consumer's Experience is not good；On the other hand, because loaded targets audio frequency and video need consumption
With certain network bandwidth resources, if all accent is played after switching every time, network congestion will be caused, cause broadcasting
The phenomenons such as target sound video cardton.
It is above-mentioned to regard the target sound in another implementation provided in an embodiment of the present invention in view of above-mentioned situation
The data message of frequency is sent to the second terminal, to cause the second terminal according to the target audio frequency and video for receiving
Data message is played out to target audio frequency and video, can be included：
The target audio frequency and video corresponding data source address and the target audio frequency and video are played in the first terminal
Time point is sent to the second terminal, to cause the second terminal according to the data source address for receiving and described
Time point, by the target audio and video playing to the time point by way of accessing the data source address.
By above-described embodiment it is appreciated that the corresponding network address of " talk on the journey to west " video can be sent to net by mobile phone A
Network TV fruit C, such Web TV fruit C can play " talk on the journey to west " video by way of accessing the above-mentioned network address,
On the basis of above-mentioned, mobile phone A may be used also while the network address corresponding to Web TV fruit C transmission " talk on the journey to west " videos
Web TV fruit C is sent jointly to the time schedule (i.e. time point) that " talk on the journey to west " video is played in mobile phone A, this
Sample, Web TV fruit C receiving the above-mentioned network address and after time point, can directly access the network address,
Network service end finds " talk on the journey to west " video, and according to time point, above-mentioned " talk on the journey to west " video playback to the time point.
Exemplary, it is assumed that the corresponding network address of " talk on the journey to west " video played in mobile phone A is：“http://
v.baidu.com/movie/14235.htm＆q=talk on the journey to wests ", it is assumed that when user sends handover request to mobile phone A, mobile phone A
" talk on the journey to west " video playback of middle broadcasting is to " 56:12 ", then, after above-mentioned handover request is received, mobile phone A can for mobile phone A
With by the corresponding network address " http of " talk on the journey to west " video://v.baidu.com/movie/14235.htm＆q=talks about
The time point " 56 that Journey to the West " and " talk on the journey to west " video are played in mobile phone A:12 " together, Web TV fruit C is sent to, is not difficult
Understand, Web TV fruit C is receiving the network address " http://v.baidu.com/movie/14235.htm＆q=is big
Words Journey to the West " and time point " 56:12 ", according to the network address " http for confiscating://v.baidu.com/movie/
14235.htm＆q=talk on the journey to wests " are able to access that in network service end " talk on the journey to west " video, and should " big talk west
Trip " video is loaded onto in Web TV fruit C, while according to time point " 56:12 " " talk on the journey to west " video was adjusted to time point
“56:12 " corresponding position.
Therefore, it is by first terminal that target audio frequency and video corresponding data source address and target audio frequency and video is whole first
The time point played is held to be sent to second terminal, the target audio frequency and video that will can be played in first terminal are switched in second terminal
Play out, and can accurately play target audio frequency and video in second terminal after handover extremely with target audio frequency and video first
Terminal identical time point, target audio frequency and video will not be interrupted, and Consumer's Experience is preferable；And Netowrk tape is saved to a certain extent
Resource burden wide, alleviates the phenomenons such as network congestion.
With the improvement of people ' s living standards, the data safety consciousness of people is also gradually lifted, in order to prevent above-mentioned right
Target audio frequency and video switch over the data leak during playing, in a specific implementation provided in an embodiment of the present invention
In, it is above-mentioned by the target audio frequency and video corresponding data source address and the target audio frequency and video when the first terminal is played
Between point be sent to the second terminal, with cause the second terminal according to the data source address for receiving and it is described when
Between point, the target audio and video playing can be included to the time point by way of accessing the data source address：
According to default encryption rule, the target audio frequency and video corresponding data source address and the target audio frequency and video are existed
The time point that the first terminal is played is encrypted, generation encryption file；
The encryption file is sent to the second terminal, to cause that the second terminal is advised according to the decryption for matching
Operation is then decrypted to received encryption file, the data source address and time point is obtained, and according to acquisition
The data source address and the time point, by the target audio and video playing by way of accessing the data source address
To the time point.
Mobile phone A by above-mentioned target audio frequency and video corresponding data source address and target audio frequency and video when first terminal is played
Between point be sent to second terminal before, mobile phone A is carried out according to default encryption rule to above-mentioned data source address and time point
Encryption, is encrypted file accordingly.
It will be appreciated to those of skill in the art that encryption rule has various, for example：AES(Advanced
Encryption Standard, also known as Rijndael enciphered methods), (Data Encryption Algorithm, data add DES
Close algorithm), 3DES (Triple DES) etc., encryption is a kind of technology limited to the access right of transmission over networks data.It is original
The encoded data that data (also referred to as in plain text, plaintext) encrypted rule and key is encrypted and produced are referred to as ciphertext
(ciphertext).It is so corresponding, the process that ciphertext is reduced to original plaintext is referred to as decryption, it is the reverse of encryption to decrypt it
Treatment, but decryption must utilize the encryption rule and key of same type to be decrypted ciphertext.
Exemplary, it is assumed that mobile phone A is encrypted according to 3DES encryption algorithm to above-mentioned data source address and time point
Treatment, 3DES (i.e. Triple DES) is that to the AES of AES transition, (1999,3-DES was appointed as transition to DES by NIST
Encryption standard), the ciphering process of 3DES is：
C=Ek3 (Dk2 (Ek1 (M)))；
And the 3DES decrypting processes matched with 3DES encryption process are：M=Dk1 (EK2 (Dk3 (C)))；
Above-mentioned Ek () represents the ciphering process of 3DES algorithms, and Dk () represents the decrypting process of 3DES algorithms, and K is represented
The key that 3DES algorithms are used, M is represented in plain text, and C represents ciphertext；
Above-mentioned plaintext M is target audio frequency and video corresponding data source address and target audio frequency and video play in first terminal
At time point, key K can be the random number that mobile phone A is produced, the random number can with but be not limited to the binary system of 16 bytes
Number, and above-mentioned ciphertext C can be understood as：Above-mentioned data source address and time are clicked through by above-mentioned 3DES encryption rule
The encryption file obtained after row encryption.
After mobile phone A is encrypted according to above-mentioned 3DES encryption rule to above-mentioned data source address and time point,
The encryption file that will be obtained is sent to Web TV fruit C, and understandable to be, Web TV fruit C is according to above-mentioned 3DES encryption mistake
The 3DES decrypting processes that journey matches, can be decrypted treatment to the encryption file for receiving, and obtain data source address with timely
Between point, and according to obtain data source address and time point, target audio frequency and video are broadcast by way of accessing data source address
Put to time point.Due to by way of accessing data source address by target audio and video playing to time point and foregoing corresponding process
It is the same, therefore, just repeat no more herein.
It should be noted that above-mentioned be encrypted place according to 3DES encryption rule to above-mentioned data source address and time point
Reason is only a kind of citing of the embodiment of the present invention, and specific encryption rule can also be AES, DES etc., and the embodiment of the present invention is not
The concrete form of encryption rule is done and is clearly limited.
As fully visible, in scheme provided in an embodiment of the present invention, first terminal receives user and is sent out for target audio frequency and video
The handover request sent；And detect in the overlay area of its NFC with the presence or absence of second terminal；If it does, by the target audio frequency and video
Data message be sent to above-mentioned second terminal, to cause second terminal according to the data message pair of the target audio frequency and video for receiving
Target audio frequency and video are played out.Using the embodiment of the present invention, it is not necessary to by first terminal and second by way of external connection
Terminal is attached, and saves equipment cost, simultaneously as directly be sent to for the data message of target audio frequency and video by first terminal
Second terminal, it is not necessary to obtain the handoff procedure that the response of second terminal just can be realized to target audio frequency and video, and whole sound is regarded
Frequency handoff procedure step is simple, improves the experience of user, and this also will be so that use the terminal of above-mentioned audio-video switching method more
Consumer can be attracted, with stronger generalization.
As shown in Fig. 2 the schematic flow sheet of the audio-video switching method provided for another embodiment of the present invention, except including figure
In 1 offer embodiment outside step S101-S103, exist second described at least two in the overlay area for detecting the NFC
In the case of terminal, the method also includes step：
S104：By in the second terminal any one be defined as target terminal；
It should be noted that in the case of including above-mentioned steps S104, the foregoing data by the target audio frequency and video
Information is sent to the second terminal, can include：
The data message of the target audio frequency and video is sent to the target terminal.
, it is understood that there is NFC function and can broadcast in the presence of multiple simultaneously in the overlay area of NFC in the mobile phone A
The terminal (second terminal) of the target audio frequency and video is put, in this case, in order to not cause mobile phone A to send the number of target audio frequency and video
It is believed that ceasing the phenomenon malfunctioned during to above-mentioned multiple second terminals, in scheme provided in an embodiment of the present invention, can send
Before the data message of target audio frequency and video, mobile phone A is first arbitrary from multiple second terminals to select one as target terminal.
Determine after target terminal, mobile phone A is only done the best with the target terminal and communicated, establish after communication, mobile phone A regards target sound
The data message of frequency is sent to the above-mentioned target terminal having determined that, and then realizes the switching to target audio frequency and video, due to switching
Process duplicates with preceding sections, therefore is repeated no more at this.
Application drawing 2 provides embodiment, there is second terminal described at least two in the overlay area for detecting the NFC
In the case of, by multiple second terminals any one be defined as target terminal, then first terminal only built with the target terminal
Vertical communication, is sent to the target terminal, it is therefore prevented that first terminal is sent out to multiple second terminals by the data message of target audio frequency and video
The phenomenon for sending data message to malfunction.
As shown in figure 3, the schematic flow sheet of the audio-video switching method provided for yet another embodiment of the invention, except including figure
In 1 offer embodiment outside step S101-S103, exist second described at least two in the overlay area for detecting the NFC
In the case of terminal, the method also includes step：
S105：Judge the second terminal whether in idle condition；
If it is, the step of above-mentioned data message by the target audio frequency and video of execution is sent to the second terminal.
In view of mobile phone A (first terminal) when the data message of above-mentioned target audio frequency and video is sent into second terminal, the
Two terminals may play the situation of other audio frequency and video tasks, and in scheme provided in an embodiment of the present invention, mobile phone A is to second
Before terminal sends the data message of target audio frequency and video, whether second terminal can be first judged in idle condition, it is whole second
In the case that end is in idle condition, the data message of target audio frequency and video is just sent to second terminal by mobile phone A, because the
If two terminals are playing other audio frequency and video, the data message of target audio frequency and video is directly sent to second terminal by mobile phone A,
The audio frequency and video that second terminal is being played can be interrupted, and the target sound that now user is likely to be not intended to be played in mobile phone A is regarded
Frequency is switched in the second terminal and plays out, and this will cause the Consumer's Experience to reduce, therefore, sent to second terminal in mobile phone A
Before the data message of target audio frequency and video, whether second terminal can be first judged in idle condition, if second terminal is in
Idle condition, then the data message of target audio frequency and video is now just sent to the second terminal by mobile phone A, and then is realized to target sound
The switching of video, because handoff procedure and preceding sections duplicate, therefore repeats no more at this.
Judge whether second terminal can be, but not limited in the following way in idle condition：Mobile phone A can be to second
Terminal sends an inquiry command, and second terminal feeds back the corresponding state of second terminal after receiving the inquiry command to mobile phone A
Information, i.e., in busy condition or idle condition, the status information that then mobile phone A is fed back according to second terminal is capable of determining that
Whether second terminal is in idle condition.
It should be noted that above-mentioned judge whether the process in idle condition is only the offer of this hair embodiment to second terminal
A kind of specific example, do not constitute the embodiment of the present invention is judged second terminal whether in idle condition the side of implementing
The restriction of formula.
As fully visible, application drawing 3 provides embodiment, there are at least two institutes in the overlay area for detecting the NFC
In the case of stating second terminal, by whether judging second terminal in idle condition, when second terminal is in idle condition,
First terminal can just send the data message of target audio frequency and video to the second terminal, therefore, second terminal will not be interrupted and broadcast
Other audio frequency and video put, further lift Consumer's Experience.
As shown in figure 4, the schematic flow sheet of the audio-video switching method provided for a further embodiment of the present invention, except including figure
In 1 offer embodiment outside step S101-S103, exist second described at least two in the overlay area for detecting the NFC
In the case of identification information comprising default terminal type in terminal, and the handover request, the method also includes step：
S106：Judge the corresponding identification information of the second terminal and the default terminal type identification information whether one
Cause；
If consistent, the step of performing the data message by the target audio frequency and video and be sent to the second terminal.
It will be appreciated to those of skill in the art that terminal most at present generally has its corresponding equipment to believe before dispatching from the factory
Breath, the facility information is the identification information of the terminal, for example, the corresponding facility informations of Web TV fruit C are：
" iQiyi201601122301.TVguo ", then the facility information " iQiyi201601122301.TVguo " is Web TV
The identification information of fruit C, wherein the unifying identifier information of " TVguo " for Web TV fruit type；Further for example, TV D is corresponding setting
It is for information：" iQiyi20160000124.TV ", the facility information " iQiyi20160000124.TV " is the mark of TV D
Information, wherein the unifying identifier information of " TV " for television genre.And mobile phone A has second in its NFC overlay area is monitored
During terminal, while the identification information of the facility information of second terminal, i.e. second terminal can be got.
It is compatible different from each terminal type in view of target audio frequency and video, that is to say, that different terminal plays target sounds
The results of broadcast such as fluency, the image quality of video may be different, for example, if target audio frequency and video are video type,
The result of broadcast of panel computer and Web TV fruit is relatively good, in order that the target audio frequency and video played in mobile phone A can more flow
Smooth switches over, and lifts Consumer's Experience, and user just specifies some specific terminal types when handover request is sent to mobile phone A
To realize the switching to target audio frequency and video, these appointed specific terminal types are default terminal type, for example, mobile phone
When the target audio frequency and video that A is played are video type, default terminal type can be：Panel computer and Web TV really, wherein, put down
The identification information of plate computer is " pad ", and the identification information of Web TV fruit is " TVguo ".
It is exemplary based on the above, for example, currently only TV D is in the NFC coverages of mobile phone A, that
, mobile phone A is able to detect that the facility information " iQiyi20160000124.TV " of TV D and TV D, due to pre-setting
Terminal type for panel computer and Web TV really, contrast understands that TV D is inconsistent with the terminal type for pre-setting, because
This, even if mobile phone A has been detected by TV D and the data message of target audio frequency and video will not be also sent to TV D, mobile phone A will continue
Detect and whether there is other-end in its NFC overlay area.Further for example, currently thering is Web TV fruit C and TV D to be in mobile phone
In the NFC overlay areas of A, then, mobile phone A is possible to detect Web TV fruit C and TV D, and can obtain Web TV
Fruit C and the corresponding facility informations of TV D are respectively：" iQiyi201601122301.TVguo " and
“iQiyi20160000124.TV”；Due to default terminal type be panel computer and Web TV really, its corresponding identification information
It is " pad " and " TVguo " that contrast understands, in Web TV fruit C that mobile phone A is detected and TV D the two terminals, only
The identification information of the corresponding identification informations of Web TV fruit C " iQiyi201601122301.TVguo " and Web TV fruit type
" TVguo " is consistent, therefore, it is possible to judge that Web TV fruit C can play target audio frequency and video.So, now mobile phone A can will be upper
The data message for stating target audio frequency and video sends Web TV fruit C, and then realizes the switching to target audio frequency and video, due to handoff procedure
It is identical with preceding sections, therefore repeated no more at this.
It can be seen that, there are the feelings of second terminal in the overlay area for detecting the NFC in the embodiment that application drawing 4 is provided
Under condition, then judge whether the corresponding identification information of second terminal having detected that is consistent with the identification information of default terminal type,
If consistent, the data message of target audio frequency and video can be just sent to above-mentioned second terminal by first terminal, due to above-mentioned default end
End type is the terminal with preferable play quality, therefore, by the first judgement to second terminal, ensure that target sound is regarded
Frequency has preferably play quality after handover, it is thus possible to lift Consumer's Experience.
As shown in figure 5, the structural representation of the audio frequency and video switching device provided for one embodiment of the invention, is that a kind of sound is regarded
Frequency plays switching device, is applied to the first terminal with close range wireless communication NFC function, and the first terminal is used to play
Target audio frequency and video, described device includes：Receiver module 201, detection module 202 and sending module 203.
Receiver module 201, for receiving the handover request that user sends for the target audio frequency and video；
Detection module 202, for whether there is second terminal, the second terminal in the overlay area for detecting the NFC
It is with NFC function and can plays the terminal of the target audio frequency and video；
Sending module 203, for having second in the overlay area that the NFC is detected in the detection module 202 eventually
In the case of end, the data message of the target audio frequency and video is sent to the second terminal, to cause the second terminal root
The target audio frequency and video are played out according to the data message of the target audio frequency and video for receiving.
Further, above-mentioned sending module 203, can be specifically for：
The target audio frequency and video corresponding data source address is sent to the second terminal, to cause that the second terminal exists
After receiving the data source address, the target audio frequency and video are played out by way of accessing the data source address.
Further, above-mentioned sending module 203, can be specifically for：
The target audio frequency and video corresponding data source address and the target audio frequency and video are played in the first terminal
Time point is sent to the second terminal, to cause the second terminal according to the data source address for receiving and described
Time point, by the target audio and video playing to the time point by way of accessing the data source address.
Further, above-mentioned sending module 203, can be specifically for：
According to default encryption rule, the target audio frequency and video corresponding data source address and the target audio frequency and video are existed
The time point that the first terminal is played is encrypted, generation encryption file；
The encryption file is sent to the second terminal, to cause that the second terminal is advised according to the decryption for matching
Operation is then decrypted to received encryption file, the data source address and time point is obtained, and according to acquisition
The data source address and the time point, by the target audio and video playing by way of accessing the data source address
To the time point.
As fully visible, in scheme provided in an embodiment of the present invention, first terminal receives user and is sent out for target audio frequency and video
The handover request sent；And detect in the overlay area of its NFC with the presence or absence of second terminal；If it does, by the target audio frequency and video
Data message be sent to above-mentioned second terminal, to cause second terminal according to the data message pair of the target audio frequency and video for receiving
Target audio frequency and video are played out.Using the embodiment of the present invention, it is not necessary to by first terminal and second by way of external connection
Terminal is attached, and saves equipment cost, simultaneously as directly be sent to for the data message of target audio frequency and video by first terminal
Second terminal, it is not necessary to obtain the handoff procedure that the response of second terminal just can be realized to target audio frequency and video, and whole sound is regarded
Frequency handoff procedure step is simple, improves the experience of user, and this also will be so that use the terminal of above-mentioned audio-video switching method more
Consumer can be attracted, with stronger generalization.
The structural representation of the audio frequency and video switching device that Fig. 6 is provided for another embodiment of the present invention, except being carried including above-mentioned Fig. 5
Outside for the receiver module 201 in embodiment, detection module 202 and sending module 203, the device also includes：Determining module 204.
Determining module 204, for having at least two in the overlay area that the NFC is detected in the detection module 202
In the case of the individual second terminal, by the second terminal any one be defined as target terminal；
In the case of including determining module 204, above-mentioned sending module 203, specifically for：
The data message of the target audio frequency and video is sent to the target terminal, to cause the target terminal according to connecing
The data message of the target audio frequency and video for receiving is played out to the target audio frequency and video.
Application drawing 6 provides embodiment, there is second terminal described at least two in the overlay area for detecting the NFC
In the case of, by multiple second terminals any one be defined as target terminal, then first terminal only built with the target terminal
Vertical communication, is sent to the target terminal, it is therefore prevented that first terminal is sent out to multiple second terminals by the data message of target audio frequency and video
The phenomenon for sending data message to malfunction.
The structural representation of the audio frequency and video switching device that Fig. 7 is provided for yet another embodiment of the invention, except being carried including above-mentioned Fig. 5
Outside for the receiver module 201 in embodiment, detection module 202 and sending module 203, the device also includes：First judge module
205 and first trigger module 206.
First judge module 205, for there is institute in the overlay area that the NFC is detected in the detection module 203
In the case of stating second terminal, judge the second terminal whether in idle condition；
First trigger module 206, for being in the case of being, to trigger institute in the result of determination of the first judge module 205
State sending module.
Application drawing 7 provides embodiment, there is second terminal described at least two in the overlay area for detecting the NFC
In the case of, whether by judging second terminal in idle condition, when second terminal is in idle condition, first terminal is
The data message of target audio frequency and video can be sent to the second terminal, therefore, other sounds that second terminal is being played will not be interrupted
Video, further lifts Consumer's Experience.
The structural representation of the audio frequency and video switching device that Fig. 8 is provided for a further embodiment of the present invention, except being carried including above-mentioned Fig. 5
Outside for the receiver module 201 in embodiment, detection module 202 and sending module 203, the device also includes：Second judge module
207 and second trigger module 208.
Second judge module 207, for there is institute in the overlay area that the NFC is detected in the detection module 202
In the case of stating second terminal, the identification information of the corresponding identification information of the second terminal and the default terminal type is judged
It is whether consistent；
Second trigger module 208, for being in the case of being, to trigger institute in the result of determination of the second judge module 207
State sending module.
The embodiment that application drawing 8 is provided, in the case of there is second terminal in the overlay area for detecting the NFC,
Judge whether the corresponding identification information of second terminal having detected that is consistent with the identification information of default terminal type again, if one
Cause, the data message of target audio frequency and video can be just sent to above-mentioned second terminal by first terminal, due to above-mentioned default terminal type
It is the terminal with preferable play quality, therefore, by the first judgement to second terminal, ensure that target audio frequency and video are being cut
There is preferably play quality, it is thus possible to lift Consumer's Experience after changing.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.And, term " including ", "comprising" or its any other variant be intended to
Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
Each embodiment in this specification is described by the way of correlation, identical similar portion between each embodiment
Divide mutually referring to what each embodiment was stressed is the difference with other embodiment.Especially for system reality
Apply for example, because it is substantially similar to embodiment of the method, so description is fairly simple, related part is referring to embodiment of the method
Part explanation.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent substitution and improvements made within the spirit and principles in the present invention etc., are all contained in protection scope of the present invention
It is interior.
Claims (14)
1. a kind of audio and video playing changing method, it is characterised in that be applied to close range wireless communication NFC function first
Terminal, the first terminal is used to play target audio frequency and video, and methods described includes：
Receive the handover request that user sends for the target audio frequency and video；
Detect that, with the presence or absence of second terminal in the overlay area of the NFC, the second terminal is with NFC function and can broadcast
Put the terminal of the target audio frequency and video；
If it does, the data message of the target audio frequency and video is sent to the second terminal, to cause the second terminal
Data message according to the target audio frequency and video for receiving is played out to the target audio frequency and video.
2. method according to claim 1, it is characterised in that exist at least in the overlay area for detecting the NFC
In the case of two second terminals, methods described also includes：
By in the second terminal any one be defined as target terminal；
The data message by the target audio frequency and video is sent to the second terminal, to cause the second terminal according to connecing
The data message of the target audio frequency and video for receiving is played out to the target audio frequency and video, including：
The data message of the target audio frequency and video is sent to the target terminal, to cause the target terminal according to receiving
The data message of the target audio frequency and video target audio frequency and video are played out.
3. method according to claim 1, it is characterised in that have second in the overlay area for detecting the NFC
In the case of terminal, methods described also includes：
Judge the second terminal whether in idle condition；
If it is, the step of execution data message by the target audio frequency and video is sent to the second terminal.
4. method according to claim 1, it is characterised in that have second in the overlay area for detecting the NFC
In the case of terminal, comprising the identification information of default terminal type in the handover request, methods described also includes：
Judge whether the corresponding identification information of the second terminal is consistent with the identification information of the default terminal type；
If consistent, the step of performing the data message by the target audio frequency and video and be sent to the second terminal.
5. the method according to any one in claim 1-4, it is characterised in that the number by the target audio frequency and video
It is believed that breath is sent to the second terminal, to cause that the second terminal is believed according to the data of the target audio frequency and video for receiving
Breath is played out to the target audio frequency and video, including：
The target audio frequency and video corresponding data source address is sent to the second terminal, to cause that the second terminal is being received
To after the data source address, the target audio frequency and video are played out by way of accessing the data source address.
6. the method according to any one in claim 1-4, it is characterised in that the number by the target audio frequency and video
It is believed that breath is sent to the second terminal, to cause that the second terminal is believed according to the data of the target audio frequency and video for receiving
Breath is played out to the target audio frequency and video, including：
The time that the target audio frequency and video corresponding data source address and the target audio frequency and video are played in the first terminal
Point is sent to the second terminal, to cause the second terminal according to the data source address and the time for receiving
Point, by the target audio and video playing to the time point by way of accessing the data source address.
7. method according to claim 6, it is characterised in that it is described by the target audio frequency and video corresponding data source address with
And the target audio frequency and video are sent to the second terminal at the time point that the first terminal is played, to cause described second eventually
End, will be described by way of accessing the data source address according to the data source address and the time point for receiving
Target audio and video playing to the time point, including：
According to default encryption rule, to the target audio frequency and video corresponding data source address and the target audio frequency and video described
The time point that first terminal is played is encrypted, generation encryption file；
The encryption file is sent to the second terminal, to cause the second terminal right according to the decryption rule for matching
Received encryption file is decrypted operation, obtains the data source address and time point, and according to obtaining
Data source address and the time point, by the target audio and video playing to institute by way of accessing the data source address
State time point.
8. a kind of audio and video playing switching device, it is characterised in that be applied to close range wireless communication NFC function first
Terminal, the first terminal is used to play target audio frequency and video, and described device includes：
Receiver module, for receiving the handover request that user sends for the target audio frequency and video；
Detection module, in the overlay area for detecting the NFC whether there is second terminal, the second terminal be with
NFC function and the terminal of the target audio frequency and video can be played；
Sending module, for it there is second terminal in the overlay area that the NFC is detected in the detection module in the case of,
The data message of the target audio frequency and video is sent to the second terminal, to cause the second terminal according to the institute for receiving
The data message for stating target audio frequency and video is played out to the target audio frequency and video.
9. device according to claim 8, it is characterised in that described device also includes：
Determining module, for existing second described at least two in the overlay area that the NFC is detected in the detection module
In the case of terminal, by the second terminal any one be defined as target terminal；
The sending module, specifically for：
The data message of the target audio frequency and video is sent to the target terminal, to cause the target terminal according to receiving
The data message of the target audio frequency and video target audio frequency and video are played out.
10. device according to claim 8, it is characterised in that described device also includes：
First judge module, for there is the second terminal in the overlay area that the NFC is detected in the detection module
In the case of, judge the second terminal whether in idle condition；
First trigger module, for being in the case of being, to trigger the sending module in the first judge module result of determination.
11. devices according to claim 8, it is characterised in that comprising the mark of default terminal type in the handover request
Knowledge information, described device also includes：
Second judge module, for there is the second terminal in the overlay area that the NFC is detected in the detection module
In the case of, judge whether the corresponding identification information of the second terminal is consistent with the identification information of the default terminal type；
Second trigger module, for being in the case of being, to trigger the sending module in the second judge module result of determination.
12. device according to any one in claim 8-11, it is characterised in that the sending module, specifically for：
The target audio frequency and video corresponding data source address is sent to the second terminal, to cause that the second terminal is being received
To after the data source address, the target audio frequency and video are played out by way of accessing the data source address.
13. device according to any one in claim 8-11, it is characterised in that the sending module, specifically for：
The time that the target audio frequency and video corresponding data source address and the target audio frequency and video are played in the first terminal
Point is sent to the second terminal, to cause the second terminal according to the data source address and the time for receiving
Point, by the target audio and video playing to the time point by way of accessing the data source address.
14. devices according to claim 13, it is characterised in that the sending module, specifically for：
According to default encryption rule, to the target audio frequency and video corresponding data source address and the target audio frequency and video described
The time point that first terminal is played is encrypted, generation encryption file；
The encryption file is sent to the second terminal, to cause the second terminal right according to the decryption rule for matching
Received encryption file is decrypted operation, obtains the data source address and time point, and according to obtaining
Data source address and the time point, by the target audio and video playing to institute by way of accessing the data source address
State time point.
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| CN114363811A (en) * | 2019-12-30 | 2022-04-15 | 联想(北京)有限公司 | Information processing method and device and multimedia equipment |
| CN114363811B (en) * | 2019-12-30 | 2023-01-06 | 联想(北京)有限公司 | Information processing method and device and multimedia equipment |
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