CN103561281A - Multimedia data sharing method and device - Google Patents
Multimedia data sharing method and device Download PDFInfo
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- CN103561281A CN103561281A CN201310512446.8A CN201310512446A CN103561281A CN 103561281 A CN103561281 A CN 103561281A CN 201310512446 A CN201310512446 A CN 201310512446A CN 103561281 A CN103561281 A CN 103561281A
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Abstract
The invention is applicable to the technical field of communication, and provides a multimedia data sharing method and device. A terminal is provided with a wifi module which supports a direct connection protocol. The method comprises the following steps: a detection request message is sent; a detection reply message and a connection request message are received; whether a connection reply message is sent to a second terminal is decided according to the received detection reply message and the connection request message; when the connection reply message is sent, master-slave connection is established with the second terminal for operational capacity negotiation, and point-to-point session connection is established for multimedia data transmission. According to the multimedia data sharing method and device, the wifi module which supports the direct connection protocol is used, by means of extending the detection request message and the other messages in a P2P extension package, the master-slave connection is established with the second terminal for operational capacity negotiation, the point-to-point session connection is established for multimedia data transmission, and therefore transmission and sharing of multimedia files can be realized with no need for support from a router and too much cost.
Description
Technical field
The invention belongs to communication technical field, relate in particular to a kind of shared method of multi-medium data and device.
Background technology
Along with smart mobile phone, intelligent television and intelligent watch popular, file and multimedia file are shared has become trend, in prior art, sharing of multi-medium data must be supported by router, cannot directly realize multimedia shares, the patent that the publication number of take is CN103259861A is example, this patent discloses a kind of method and system of recording and watching Internet video, the network video file being provided by network video server is downloaded and preserved to this patent utilization router, the LAN side network terminal utilizes the file in router storage to watch and foradownloaded video, then for network terminal user, watching the idle computational resource of router to carry out Internet video records, do not take the computational resource of the network terminal, the network terminal is freed, router can, at idle download network video frequency program, take full advantage of time resource simultaneously, in addition, can utilize various video to share mode, be convenient to the network terminal and obtain video file, share to a plurality of terminals.
Visible, in prior art, terminal can only realize sharing of multi-medium data by router, cannot directly realize sharing of multi-medium data between terminal.
Summary of the invention
A kind of method that provides multi-medium data shared is provided the object of the embodiment of the present invention, being intended to solve in prior art terminal in prior art can only realize sharing of multi-medium data by router, cannot directly realize the shared problem of multi-medium data between terminal.
The embodiment of the present invention is achieved in that a kind of method that multi-medium data is shared, and described method is applied to terminal, and described terminal has the wifi module of supporting direct-connected agreement, and described method comprises:
Send a probe request message, the facility information that described probe request message has comprised first terminal and the service type information of first terminal;
Receive detection reply message and connection request message that the second terminal sends, the facility information that described detection reply message has comprised the second terminal and the service type information of the second terminal;
According to received detection, reply message and determine that with connection request message whether the second terminal being sent to one is connected reply message;
When the second terminal being sent to a connection reply message, set up principal and subordinate link with the second terminal, carry out operational capacity negotiation, set up peer to peer session and connect, to carry out Multimedia Data Transmission.
The embodiment of the present invention also provides a kind of multi-medium data shared device, and described application of installation is in terminal, and described terminal has the wifi module of supporting direct-connected agreement, and described device comprises:
Transmitting element, for sending a probe request message, the facility information that described probe request message has comprised first terminal and the service type information of first terminal;
Receiving element, the detection reply message and the connection request message that for receiving the second terminal, send, the facility information that described detection reply message has comprised the second terminal and the service type information of the second terminal;
Authentication ' unit, determines that for reply message and connection request message according to received detection whether the second terminal being sent to one is connected reply message;
Linkage unit, for when authentication is passed through, sends one to the second terminal and connects reply message, sets up principal and subordinate link with the second terminal, then carries out operational capacity negotiation, sets up peer to peer session and connects, to carry out Multimedia Data Transmission.
The embodiment of the present invention compared with prior art, beneficial effect is: utilized terminal to have the wifi module of supporting direct-connected agreement, by expanding the message such as probe request message in the P2P expanding packet in wifi module, set up principal and subordinate link with the second terminal, carry out operational capacity negotiation, set up peer to peer session and connect, to carry out Multimedia Data Transmission, thereby without router support, without too many cost, can realize the transmission of multimedia file and share.
Accompanying drawing explanation
Fig. 1 is the flow chart of the shared method of the terminal room multi-medium data that provides of the embodiment of the present invention;
Fig. 2 is the sub-process figure of Fig. 1;
Fig. 3 is the module frame chart of the shared device of the terminal room multi-medium data that provides of the embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Below in conjunction with specific embodiment, realization of the present invention is described in detail:
Refer to Fig. 1, the embodiment of the present invention provides a kind of multi-medium data shared method, described method is applied to terminal, described terminal has the wifi module of supporting direct-connected agreement, and described wifi module need to be supported 802.11n agreement, support WIFI P2P agreement (being WIFI direct-connecting technology).
Described method comprises:
S101: first terminal sends a probe request message, the facility information that described probe request message has comprised first terminal and the service type information of first terminal, probe requests thereby is to send to carry out the probe requests thereby that Streaming Media is shared with described first terminal;
In an embodiment of the present invention, can directly utilize the wifi module of the direct-connected agreement of support of first terminal, in its P2P expanding packet, expand relevant information.This probe request message also can comprise the two from machine information of first terminal, for illustrating that first terminal has the two slaves of support, can realize the shared ability of three machine datas; The slave of first terminal connects extended method information, other modes that connect for describing the slave of first terminal.
In embodiments of the present invention, further comprising the steps of before step S101: first terminal sends a broadcast, the facility information that this broadcast has comprised first terminal and the service type information of first terminal.Certainly, can also comprise the two from machine information of first terminal.Broadcast message is the packets of information periodically sending to, and major function is to tell in local area network (LAN), the existence of main equipment first terminal and apparatus characteristic information.
S102: receive detection reply message and connection request message that the second terminal sends, the facility information that described detection reply message has comprised the second terminal and the service type information of the second terminal;
In embodiments of the present invention, the two connection of the slaves from machine information, the second terminal extended method information, the slave session information of the second terminal, the mac address information that message also can comprise the second terminal replied in this detection.
S103: reply message according to received detection and determine that with connection request message whether the second terminal being sent to one is connected reply message;
In embodiments of the present invention, first terminal can be replied message according to the detection receiving and be determined that with connection request message whether the second terminal being sent to one is connected reply message, thus the safety certification of realization.
This connection request message has comprised the facility information of the second terminal, the service type information of the second terminal.Also can comprise the two from machine information of the second terminal.This connection is replied message and has been comprised the facility information of first terminal, the service type information of first terminal, can also comprise that two slaves from machine information and first terminal of first terminal connect extended method information.
S104: when the second terminal being sent to a connection reply message, set up principal and subordinate link with the second terminal, carry out operational capacity negotiation, set up peer to peer session and connect, to carry out Multimedia Data Transmission.
In embodiments of the present invention, first terminal and the second terminal realize and controlling and operational capacity negotiation based on RTSP agreement.
In an embodiment of the present invention, the step that described operational capacity is consulted comprises:
With the second terminal switch transport-type and code capacity; Transfer files type for example, form, frame per second, size etc.
Refer to Fig. 2, the described step of setting up peer to peer session connection comprises:
Step S201: send an encoding and decoding message, described encoding and decoding message comprises the coding/decoding capability information to files in stream media of first terminal;
Step S202: receive the second terminal and according to described encoding and decoding message, the encoding and decoding of returning after the coding/decoding capability of the second terminal and described first terminal are consistent are set and reply message;
Step S203: receive the session establishment request message that the second terminal sends, send a session establishment and reply message, confirm session establishment;
Step S204: receive broadcasting, shared Streaming Media request message that the second terminal sends, send a broadcasting, share Streaming Media reply message;
Step S205: start playing function, transport stream media file.
In one embodiment of the invention, described method also comprises:
Sending one stops, closing streaming media request message or receive one that the second terminal sends and stop, closing streaming media request message;
Stop, closing the transmission of files in stream media.Thereby can make slave stop, closing service each other, carry out dormancy.
In one embodiment of the invention, the step of described transport stream media file comprises:
H.264, files in stream media is compressed, split into PES bag, then PES bag is split into TS stream;
According to Streaming Media, control mutual signalling TS stream.
In concrete application, can use hardware-compressed unit that H.264 files in stream media is compressed, hardware-compressed effect uses Software Compression effective.
In one embodiment of the invention, before the step of described transport stream media file, also comprise:
First terminal and the second terminal are used synchronised clock; By using synchronised clock, guarantee that the timestamp sending with accepting is identical.
The step of described transport stream media file comprises: the broadcasting clock that obtains each frame, the clock information obtaining is filled in the voice data of files in stream media and the field of video data, for the second terminal, when receiving each frame data, judge that whether current video time information and audio frequency time is consistent, to match voice data according to the video data time.
The second terminal can be synthesized according to timestamp information, has realized asynchronous transmission, but synchronous synthetic mechanism has been guaranteed that Streaming Media has kept consistent on the minimum unit of transmission, thereby made whole files in stream media also keep consistent.And owing to sharing the stream medium data of transmission and comprised the synchronised clock information of audio & video, under the support of corresponding play-back application, the media of sharing can be play in real time.
In embodiments of the present invention, the spendable equipment of first terminal is mouse, keyboard, and camera, microphone etc., what these equipment were exported is all small-scale data.These equipment can be used in the second terminal, the second terminal has a set of equipment management agreement, the second terminal, from first terminal obtains the small-scale data of these equipment, according to device management protocol, can be used these equipment of first terminal as local physical device.
Refer to Fig. 3, the embodiment of the present invention also provides a kind of multi-medium data shared device, and described application of installation is in terminal, and described terminal has the wifi module of supporting direct-connected agreement, and described device comprises:
Transmitting element 301, for sending a probe request message, the facility information that described probe request message has comprised first terminal and the service type information of first terminal;
Receiving element 302, the detection reply message and the connection request message that for receiving the second terminal, send, the facility information that described detection reply message has comprised the second terminal and the service type information of the second terminal;
Authentication ' unit 303, determines that for reply message and connection request message according to received detection whether the second terminal being sent to one is connected reply message;
In an embodiment of the present invention, described linkage unit comprises: operational capacity negotiation module, for the second terminal switch transport-type and code capacity;
Described transmitting element, also, for sending an encoding and decoding message, described encoding and decoding message comprises the coding/decoding capability information to files in stream media of first terminal;
Described receiving element, also arranges according to described encoding and decoding message the encoding and decoding of returning after the coding/decoding capability of the second terminal and described first terminal are consistent and replys message for receiving the second terminal; Receive the session establishment request message that the second terminal sends;
Described transmitting element also sends a session establishment reply message for receive session establishment request message at receiving element after, confirms session establishment;
Described receiving element, the broadcasting, the shared Streaming Media request message that also for receiving the second terminal, send;
Described transmitting element also sends a broadcasting, shared Streaming Media reply message after receiving described broadcasting at receiving element, sharing Streaming Media request message;
Transmission unit, for starting playing function, transport stream media file.
In one embodiment of the invention, described device also comprises:
Stop, closing unit, for send one at transmitting element, stop, closing streaming media request message or receiving element and receive one that the second terminal sends and stop, closing after streaming media request message, stop, closing the transmission of files in stream media.
In one embodiment of the invention, described transmission unit comprises:
Compression packetization module, for H.264 files in stream media is compressed, splits into PES bag, then PES bag is split into TS stream;
Transport module, for controlling mutual signalling TS stream according to Streaming Media.
In one embodiment of the invention, described device also comprises:
Lock unit, for using synchronised clock with the second terminal, when transport stream media file, obtain the broadcasting clock information of each frame, the clock information obtaining is filled in the voice data of files in stream media and the field of video data, for the second terminal, when receiving each frame data, judge that whether current video time information and audio frequency time is consistent, to match voice data according to the video data time.Owing to sharing the stream medium data of transmission and comprised the synchronised clock information of audio & video, under the support of corresponding play-back application, the media of sharing can be play in real time.
The same method of other detailed technology schemes in device, describes in said method, does not repeat them here.
The method that media data of the present invention is shared and device, utilized terminal to there is the wifi module of supporting direct-connected agreement, by expanding the message such as probe request message in the P2P expanding packet in wifi module, set up principal and subordinate link with the second terminal, carry out operational capacity negotiation, setting up peer to peer session connects, to carry out media data transmission and to share in real time between terminal and terminal, thereby without router support, without too many cost, can realize the transmission of multimedia file shares, and reduced the complex operation that media are shared, and the time delay of transfer of data, improved interactive experience.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. the shared method of multi-medium data, is characterized in that, described method is applied to terminal, and described terminal has the wifi module of supporting direct-connected agreement, and described method comprises:
First terminal sends a probe request message, the facility information that described probe request message has comprised first terminal and the service type information of first terminal;
Receive detection reply message and connection request message that the second terminal sends, the facility information that described detection reply message has comprised the second terminal and the service type information of the second terminal;
According to received detection, reply message and determine that with connection request message whether the second terminal being sent to one is connected reply message;
When the second terminal being sent to a connection reply message, set up principal and subordinate link with the second terminal, carry out operational capacity negotiation, set up peer to peer session and connect, to carry out Multimedia Data Transmission.
2. the method for claim 1, is characterized in that, the step that described operational capacity is consulted comprises:
With the second terminal switch transport-type and code capacity;
The described step of setting up peer to peer session connection comprises:
Send an encoding and decoding message, described encoding and decoding message comprises the coding/decoding capability information to files in stream media of first terminal;
Receiving the second terminal arranges according to described encoding and decoding message the encoding and decoding of returning after the coding/decoding capability of the second terminal and described first terminal are consistent and replys message;
Receive the session establishment request message that the second terminal sends, send a session establishment and reply message, confirm session establishment;
Receive broadcasting, shared Streaming Media request message that the second terminal sends, send a broadcasting, share Streaming Media reply message;
Start playing function, transport stream media file.
3. method as claimed in claim 2, is characterized in that, described method also comprises:
Sending one stops, closing streaming media request message or receive one that the second terminal sends and stop, closing streaming media request message;
Stop, closing the transmission of files in stream media.
4. method as claimed in claim 2 or claim 3, is characterized in that, the step of described transport stream media file comprises:
H.264, files in stream media is compressed, split into PES bag, then PES bag is split into TS stream;
According to Streaming Media, control mutual signalling TS stream.
5. method as claimed in claim 2, is characterized in that, before the step of described transport stream media file, also comprises:
First terminal and the second terminal are used synchronised clock;
The step of described transport stream media file comprises: the broadcasting clock information that obtains each frame, the clock information obtaining is filled in the voice data of files in stream media and the field of video data, for the second terminal, when receiving each frame data, judge that whether current video time information and audio frequency time is consistent, to match voice data according to the video data time.
6. the shared device of multi-medium data, is characterized in that, described application of installation is in terminal, and described terminal has the wifi module of supporting direct-connected agreement, and described device comprises:
Transmitting element, for sending a probe request message, the facility information that described probe request message has comprised first terminal and the service type information of first terminal;
Receiving element, the detection reply message and the connection request message that for receiving the second terminal, send, the facility information that described detection reply message has comprised the second terminal and the service type information of the second terminal;
Authentication ' unit, determines that for reply message and connection request message according to received detection whether the second terminal being sent to one is connected reply message;
Linkage unit, for when authentication is passed through, sends one to the second terminal and connects reply message, sets up principal and subordinate link with the second terminal, then carries out operational capacity negotiation, sets up peer to peer session and connects, to carry out Multimedia Data Transmission.
7. device as claimed in claim 6, is characterized in that, described linkage unit comprises: operational capacity negotiation module, for the second terminal switch transport-type and code capacity;
Described transmitting element, also, for sending an encoding and decoding message, described encoding and decoding message comprises the coding/decoding capability information to files in stream media of first terminal;
Described receiving element, also arranges according to described encoding and decoding message the encoding and decoding of returning after the coding/decoding capability of the second terminal and described first terminal are consistent and replys message for receiving the second terminal; Receive the session establishment request message that the second terminal sends;
Described transmitting element also sends a session establishment reply message for receive session establishment request message at receiving element after, confirms session establishment;
Described receiving element, the broadcasting, the shared Streaming Media request message that also for receiving the second terminal, send;
Described transmitting element also sends a broadcasting, shared Streaming Media reply message after receiving described broadcasting at receiving element, sharing Streaming Media request message;
Transmission unit, for starting playing function, transport stream media file.
8. device as claimed in claim 7, is characterized in that, described device also comprises:
Stop, closing unit, for send one at transmitting element, stop, closing streaming media request message or receiving element and receive one that the second terminal sends and stop, closing after streaming media request message, stop, closing the transmission of files in stream media.
9. install as claimed in claim 7 or 8, it is characterized in that, described transmission unit comprises:
Compression packetization module, for H.264 files in stream media is compressed, splits into PES bag, then PES bag is split into TS stream;
Transport module, for controlling mutual signalling TS stream according to Streaming Media.
10. device as claimed in claim 7, is characterized in that, described device also comprises:
Lock unit, for using synchronised clock with the second terminal, when transport stream media file, obtain the broadcasting clock information of each frame, the clock information obtaining is filled in the voice data of files in stream media and the field of video data, for the second terminal, when receiving each frame data, judge that whether current video time information and audio frequency time is consistent, to match voice data according to the video data time.
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| CN111526319B (en) * | 2020-04-26 | 2022-08-12 | 上海依图网络科技有限公司 | Connection method and device of extended function device |
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