CN109889922A - Retransmission method, device, equipment and the storage medium of stream medium data - Google Patents
Retransmission method, device, equipment and the storage medium of stream medium data Download PDFInfo
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Abstract
The embodiment of the invention discloses a kind of retransmission method of stream medium data, device, equipment and storage mediums, wherein this method comprises: by the currently transmitted information of received current stream medium data with prestore send information compared with pair, obtain comparison result；Based on comparison result, the corresponding object time stamp of current stream medium data is determined；Current stream medium data and stamp of corresponding object time are forwarded to receiving end, so that receiving end is based on object time stamp and plays current stream medium data.The embodiment of the present invention resets timestamp according to same benchmark to the stream medium data of different transmitting terminals, it is ensured that receiving end receives the timestamp monotonic increase of stream medium data and do not repeat, and improves the broadcasting accuracy rate of stream medium data.
Description
Technical field
The present embodiments relate to technical field of computer multimedia more particularly to a kind of forwarding sides of stream medium data
Method, device, equipment and storage medium.
Background technique
With the continuous development of the communication technology, in order to improve communication efficiency, remotely linked up by network implementations multi-party users
Grow up with the mode of interaction, this interactive mode make multi-party users do not need it is on the spot in person can realize it is identical mutually
It is dynamic.
Currently, side's client would generally receive the video data of multi-party client in the scene of Multi-Party Conference.Example
Property referring to Fig. 1, Fig. 1 is the schematic diagram for the video data that a side receiving end receives six side's transmitting terminals, and wherein receiving end G is to receive
End, transmitting terminal A- transmitting terminal F are transmitting terminal, send seven road video datas to selective forwarding unit (Selective
Forwarding Unit, SFU), SFU is transmitted to receiving end G by four forwarding accesses.In order to reduce delay, four forwardings are logical
Road is all to establish in advance, then forwards the SFU four road video datas selected by this four forwarding accesses.
The problem of above scheme, is that transmitting terminal A- transmitting terminal F has the timestamp of oneself, and timestamp may be not
It is identical and incoherent.At this point, if first by the video data of transmitting terminal A by forwarding access 1 to be sent to receiving end G, later
Again by the video data of transmitting terminal B by forwarding access 1 to be sent to receiving end G, since timestamp is inconsistent, it is more likely that rear to turn
The timestamp of the video data of the transmitting terminal B of hair is less than the timestamp of the video data of the transmitting terminal A first forwarded, and then causes to connect
The post-processing of receiving end G reception malfunctions.
Summary of the invention
The present invention provides retransmission method, device, equipment and the storage medium of a kind of stream medium data, can solve existing skill
Because handling mistake caused by timestamp difference in art.
In a first aspect, the embodiment of the invention provides a kind of retransmission methods of stream medium data, comprising:
By the currently transmitted information of received current stream medium data with prestore send information compared to pair, obtain compare tie
Fruit；
Based on the comparison result, the corresponding object time stamp of the current stream medium data is determined；
The current stream medium data and stamp of corresponding object time are forwarded to receiving end, so that receiving end is based on described
Object time stamp plays the current stream medium data.
Second aspect, the embodiment of the invention also provides a kind of retransmission unit of stream medium data, which includes:
Comparison module, for by the currently transmitted information of received current stream medium data with prestore send information compared with
It is right, obtain comparison result；
Timestamp determining module determines the corresponding target of the current stream medium data for being based on the comparison result
Timestamp；
Forwarding module, for the current stream medium data and stamp of corresponding object time to be forwarded to receiving end, so that
Receiving end is based on object time stamp and plays the current stream medium data.
Further, the timestamp determining module includes:
Stamp determination unit at the first time, if prestoring hair with described for the currently transmitted information for the comparison result
The transmitting terminal mark for including in breath of delivering letters is different, then determines the corresponding target of the current stream medium data according to current clock value
Timestamp；
Second timestamp determination unit, if prestoring hair with described for the currently transmitted information for the comparison result
The transmitting terminal mark for including in breath of delivering letters is identical, then according to the currently transmitted information and prestores transmission information, determine described in work as
The corresponding object time stamp of preceding stream medium data.
Further, the first time stamp determination unit is specifically used for:
Forwarding time stamp is calculated according to the current clock value and network time offset value, the forwarding time stamp is single
It adjusts and is incremented by；
Object time stamp is determined as the forwarding time stamp.
Further, the second timestamp determination unit is specifically used for:
The object time stamp is determined according to original time stamp difference, and the original time stamp difference is described currently transmitted
Original time stamp and the difference for prestoring the original time stamp in transmission information in information.
Further, the second timestamp determination unit includes:
First difference subelement will be described if being less than or equal to preset difference value threshold value for original time stamp difference
Object time stamp is determined as the original time stamp difference and the sum of the object time stamp prestored in transmission information.
Further, the second timestamp determination unit further include:
Second difference subelement, if being greater than preset difference value threshold value for the original time stamp difference, by the mesh
Mark timestamp is determined as forwarding time stamp.
Further, described device further include: update module, the update module are used for:
The currently transmitted information of the current stream medium data is determined as new to prestore transmission information.
The third aspect, the embodiment of the invention also provides a kind of equipment, the equipment includes:
One or more processors；
Storage device, for storing one or more programs；
When one or more of programs are executed by one or more of processors, so that one or more of processing
Device realizes the retransmission method of stream medium data as described above.
Fourth aspect, the embodiment of the invention also provides a kind of computer readable storage mediums, are stored thereon with computer
Program, the program realize the retransmission method of stream medium data as described above when being executed by processor.
The embodiment of the present invention by by the currently transmitted information of received current stream medium data with prestore send information phase
It compares, obtains comparison result, be based on comparison result, determine the corresponding object time stamp of current stream medium data, and will currently flow
Media data and stamp of corresponding object time are forwarded to receiving end, so that receiving end is based on object time stamp and plays current Streaming Media
Data.The embodiment of the present invention resets timestamp according to same benchmark to the stream medium data of different transmitting terminals, avoids multiple
The stream medium data of transmitting terminal may be because handling mistake when being forwarded to a receiving end caused by timestamp difference, it is ensured that receives termination
It receives the timestamp monotonic increase of stream medium data and does not repeat, improve the broadcasting accuracy rate of stream medium data.
Detailed description of the invention
Fig. 1 is the schematic diagram for the video data that a side receiving end receives six side's transmitting terminals；
Fig. 2 is the flow chart of the retransmission method of the stream medium data in the embodiment of the present invention one；
Fig. 3 is the flow chart of the retransmission method of the stream medium data in the embodiment of the present invention two；
Fig. 4 is the structural schematic diagram of the retransmission unit of the stream medium data in the embodiment of the present invention three；
Fig. 5 is the structural schematic diagram of the equipment in the embodiment of the present invention four.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Embodiment one
Fig. 2 is the flow chart of the retransmission method of the stream medium data in the embodiment of the present invention one, and the present embodiment is applicable to
Realize the case where stream medium data of multiple transmitting terminals is forwarded to a receiving end, this method can be by the forwarding of stream medium data
Device executes, which can realize that the device is configured in equipment by the way of software and/or hardware, such as this sets
Standby can be computer, tablet computer and smart phone etc..The retransmission unit of stream medium data in the present embodiment is turned with selectivity
It is illustrated for bill member (Selective Forwarding Unit, SFU), as shown in Fig. 2, this method specifically can wrap
It includes:
S110, by the currently transmitted information of received current stream medium data with prestore send information compared with pair, compared
To result.
Wherein, using the continuous time-base media of streaming technology, such as audio number when stream medium data can be to transmit
According to, video data or multi-medium data etc., it is not construed as limiting in concrete type the present embodiment of stream medium data, is forwarded in Fig. 1
Video data is only an example.Currently transmitted information indicates the relevant information of current stream medium data, in currently transmitted information
It may include the original time stamp and transmitting terminal mark of current stream medium data.Prestoring and sending information is to be stored in local expression
The relevant information of a upper stream medium data, prestore send information in may include a upper stream medium data original time stamp, mesh
Mark timestamp and transmitting terminal mark.Wherein transmitting terminal mark can use the SSRC (Synchronization of 32 bit values
Source) identifier is identified.The object time of a upper stream medium data stabs newly-installed new timestamp of attaching most importance to.This implementation
If current stream medium data is first data of the retransmission unit of stream medium data in example, it is empty for prestoring in transmission information.
The transmitting terminal of stream medium data in the present embodiment is that transmitting terminal quantity is 6 merely illustrative at least two, Fig. 1.
Specifically, the retransmission unit of stream medium data receives current stream medium data to be forwarded, and work as institute is received
Transmitting terminal mark in the currently transmitted information of preceding stream medium data is carried out with the local transmitting terminal mark sent in information that prestores
It compares, it is whether identical as the transmitting terminal of a upper stream medium data with the transmitting terminal of the current stream medium data of determination, it obtains comparing knot
Fruit.
S120, it is based on comparison result, determines the corresponding object time stamp of current stream medium data.
Wherein, to include currently transmitted information different from the transmitting terminal mark that sends and include in information is prestored and work as comparison result
It is preceding send information with prestore transmission information in include transmitting terminal mark it is two kinds identical.Object time stamp is turning for stream medium data
Transmitting apparatus is the new timestamp of current stream medium data setting.
Specifically, being based on comparison result, the corresponding object time stamp of current stream medium data is determined, comprising: if compared
As a result different from the transmitting terminal mark for sending and including in information is prestored for currently transmitted information, then worked as according to current clock value determination
The corresponding object time stamp of preceding stream medium data；If the currently transmitted information of comparison result with prestore send information in include
Transmitting terminal mark is identical, then according to currently transmitted information and prestores transmission information, determine the corresponding target of current stream medium data
Timestamp.
If comparison result is different from the transmitting terminal mark for sending and including in information is prestored for currently transmitted information, i.e., currently
When the transmitting terminal difference of the transmitting terminal of stream medium data and a upper stream medium data, then current stream matchmaker is determined according to current clock value
The corresponding object time stamp of volume data, comprising: forwarding time stamp is calculated according to current clock value and network time offset value,
Forwarding time stabs monotonic increase；It will stab object time and be determined as forwarding time stamp.Wherein, forwarding time stamp by preset formula into
Row calculates, and preset formula can be expressed as T=90* (t+N), and wherein T indicates that forwarding time stamp, t indicate current clock value, N table
Show that network time offset value, network time offset value are current clock value and Network Time Protocol (Network Time
Protoco, NTP) time offset value.Since forwarding time stamp is related to current clock value, forwarding time stamp dullness is passed
Increase.When the transmitting terminal difference of the transmitting terminal and a upper stream medium data of current stream medium data, by the mesh of current stream medium data
Time stamp setting is marked as forwarding time stamp.
If comparison result is identical as the transmitting terminal mark for sending and including in information is prestored for currently transmitted information, i.e., currently
When the transmitting terminal of stream medium data is identical as the transmitting terminal of a upper stream medium data, then the object time of current stream medium data stabs
It can be configured according to the original time stamp of a upper stream medium data.
Further, according to currently transmitted information and transmission information is prestored, determines the corresponding target of current stream medium data
Timestamp, comprising: determine that the object time stabs according to original time stamp difference, original time stamp difference is in currently transmitted information
Original time stamp sends the difference of the original time stamp in information with prestoring.It will stab object time and be determined as original time stamp difference
With the sum of the object time stamp prestored in transmission information, i.e. object time stamp is equal to original time stamp difference and upper Streaming Media number
According to object time stamp the sum of.
S130, current stream medium data and stamp of corresponding object time are forwarded to receiving end, so that receiving end is based on mesh
It marks timestamp and plays current stream medium data.
Wherein, receiving end is unique.After determining the corresponding object time stamp of current stream medium data, will currently it flow
Media data and stamp of corresponding object time are forwarded to receiving end, so that receiving end is based on object time stamp and plays current Streaming Media
Data.
The technical solution of the present embodiment, by the way that the currently transmitted information of received current stream medium data and transmission will be prestored
Information obtains comparison result compared to, is based on comparison result, determines the corresponding object time stamp of current stream medium data, and will
Current stream medium data and stamp of corresponding object time are forwarded to receiving end, so that receiving end is current based on object time stamp broadcasting
Stream medium data.The present embodiment resets timestamp according to same benchmark to the stream medium data of different transmitting terminals, avoids more
The stream medium data of a transmitting terminal may be because handling mistake when being forwarded to a receiving end caused by timestamp difference, it is ensured that receiving end
It receives the timestamp monotonic increase of stream medium data and does not repeat, improve the broadcasting accuracy rate of stream medium data.
Embodiment two
Fig. 3 is the flow chart of the retransmission method of the stream medium data in the embodiment of the present invention two.The present embodiment is in above-mentioned reality
On the basis of applying example, further the retransmission method of above-mentioned stream medium data is embodied.Correspondingly, as shown in figure 3, originally
The method of embodiment specifically includes:
S210, by the currently transmitted information of received current stream medium data with prestore send information compared with pair, compared
To result.
Specifically, the retransmission unit of stream medium data receives current stream medium data to be forwarded, and work as institute is received
Transmitting terminal mark in the currently transmitted information of preceding stream medium data is carried out with the local transmitting terminal mark sent in information that prestores
It compares, it is whether identical as the transmitting terminal of a upper stream medium data with the transmitting terminal of the current stream medium data of determination, it obtains comparing knot
Fruit.
It is identical as the transmitting terminal mark that sends and include in information is prestored whether S220, comparison result are currently transmitted information.
If comparison result is identical as the transmitting terminal mark for sending and including in information is prestored for currently transmitted information, execute
S232 is executed if comparison result is different from the transmitting terminal mark for sending and including in information is prestored for currently transmitted information
S231。
S231, the corresponding object time stamp of current stream medium data is determined according to current clock value.
Specifically, determining that the current stream medium data corresponding object time stabs according to current clock value, comprising: according to current
Forwarding time stamp is calculated in clock value and network time offset value, and forwarding time stabs monotonic increase；Object time it will stab determination
For forwarding time stamp.
S232, according to currently transmitted information and transmission information is prestored, determines the current stream medium data corresponding object time
Stamp.
Specifically, determining that the object time stabs according to original time stamp difference, original time stamp difference is currently transmitted information
In original time stamp with prestore send information in original time stamp difference.
Further, judge whether original time stamp difference is greater than preset difference value threshold value, if original time stamp difference is small
In or equal to preset difference value threshold value, then object time stamp is determined as original time stamp difference and prestores the target sent in information
The sum of timestamp.If original time stamp difference is greater than preset difference value threshold value, it will stab the object time and be determined as forwarding time stamp.
Wherein, preset difference value threshold value can be set according to the actual situation, such as preset difference value threshold value can be set to
500ms.If original time stamp difference is greater than preset difference value threshold value, illustrates that transmitting terminal does not send data, can be considered as and work as
The transmitting terminal of preceding stream medium data is different from the transmitting terminal of a upper stream medium data, then will stab the object time and be determined as forwarding time
Stamp.
If original time stamp difference is less than or equal to preset difference value threshold value, the transmission of current stream medium data can be considered as
End is identical as the transmitting terminal of a upper stream medium data, then will stab the object time and be determined as original time stamp difference and prestore transmission to believe
The sum of object time stamp in breath, i.e. object time stamp are the object time stamp of original time stamp difference and a upper stream medium data
The sum of.
S240, the currently transmitted information of current stream medium data is determined as new to prestore transmission information.
Specifically, by being locally stored when prestoring the original time stamp for sending the upper stream medium data in information, target
Between stamp and transmitting terminal mark delete, by the original time stamp of current stream medium data, the object time stamp and transmitting terminal mark storage
Transmission information is prestored for new.
S250, current stream medium data and stamp of corresponding object time are forwarded to receiving end, so that receiving end is based on mesh
It marks timestamp and plays current stream medium data.
It should be noted that the retransmission unit of stream medium data can carry out Streaming Media by the forwarding access of preset quantity
The forwarding of data, preset quantity can be set according to the actual situation.Referring to Fig. 1,4 forwarding accesses are set it are only one and show
Example.Forwarding time stamp can be associated with forwarding access, and each forwarding access safeguards an independent forwarding time stamp, above-mentioned step
When the current stream medium data of the setting corresponding object time stabs in rapid, forwarding time stamp therein can turn for stream medium data
Transmitting apparatus stabs for the forwarding time of the forwarding access of its distribution.
Technical solution provided in this embodiment, by by the currently transmitted information of received current stream medium data with prestore
Information is sent compared to pair, obtains comparison result, is based on comparison result, determines the corresponding object time stamp of current stream medium data,
By the currently transmitted information of current stream medium data be determined as it is new prestore transmission information, and by current stream medium data and correspondence
Object time stamp be forwarded to receiving end so that receiving end is based on object time stamp and plays current stream medium data.The present embodiment
Timestamp is reset according to same benchmark to the stream medium data of different transmitting terminals, avoids the stream medium data of multiple transmitting terminals
May be because handling mistake caused by timestamp difference when being forwarded to a receiving end, it is ensured that receiving end receive stream medium data when
Between stab and monotonic increase and do not repeat, improve the broadcasting accuracy rate of stream medium data；And the time of object time stamp and script
The interval of stamp is related, ensure that the object time stamp of stream medium data is distributed according to the time interval of its script.
Embodiment three
Fig. 4 is the structural schematic diagram of the retransmission unit of the stream medium data in the embodiment of the present invention three, and the present embodiment can fit
The case where being forwarded to a receiving end for realizing the stream medium data of multiple transmitting terminals, this method can be by stream medium data
Retransmission unit executes.Streaming Media provided by any embodiment of the invention can be performed in communication device provided by the embodiment of the present invention
The retransmission method of data has the corresponding functional module of execution method and beneficial effect.The device specifically includes comparison module
310, timestamp determining module 320 and forwarding module 330, in which:
Comparison module 310, for by the currently transmitted information of received current stream medium data with prestore send information phase
It compares, obtains comparison result；
Timestamp determining module 320 determines the current stream medium data corresponding object time for being based on comparison result
Stamp；
Forwarding module 330, for current stream medium data and stamp of corresponding object time to be forwarded to receiving end, so as to connect
Receiving end is based on object time stamp and plays current stream medium data.
The embodiment of the present invention by by the currently transmitted information of received current stream medium data with prestore send information phase
It compares, obtains comparison result, be based on comparison result, determine the corresponding object time stamp of current stream medium data, and will currently flow
Media data and stamp of corresponding object time are forwarded to receiving end, so that receiving end is based on object time stamp and plays current Streaming Media
Data.The embodiment of the present invention resets timestamp according to same benchmark to the stream medium data of different transmitting terminals, avoids multiple
The stream medium data of transmitting terminal may be because handling mistake when being forwarded to a receiving end caused by timestamp difference, it is ensured that receives termination
It receives the timestamp monotonic increase of stream medium data and does not repeat, improve the broadcasting accuracy rate of stream medium data.
Further, timestamp determining module 320 includes:
At the first time stamp determination unit, if for comparison result be currently transmitted information and prestore transmission information in include
Transmitting terminal identify different, then determine that the current stream medium data corresponding object time stabs according to current clock value；
Second timestamp determination unit, if for comparison result be currently transmitted information and prestore transmission information in include
Transmitting terminal mark it is identical, then according to currently transmitted information and prestore transmission information, determine the corresponding mesh of current stream medium data
Mark timestamp.
Further, stamp determination unit is specifically used at the first time:
Forwarding time stamp is calculated according to current clock value and network time offset value, forwarding time stabs monotonic increase；
It will stab object time and be determined as forwarding time stamp.
Further, the second timestamp determination unit is specifically used for:
Determine that the object time stabs according to original time stamp difference, original time stamp difference is original in currently transmitted information
Timestamp sends the difference of the original time stamp in information with prestoring.
Further, the second timestamp determination unit includes:
First difference subelement, if being less than or equal to preset difference value threshold value for original time stamp difference, by target
Timestamp is determined as original time stamp difference and prestores the sum of the object time stamp sent in information.
Further, the second timestamp determination unit further include:
Second difference subelement will stab the object time if being greater than preset difference value threshold value for original time stamp difference
It is determined as forwarding time stamp.
Further, device further include: update module, update module are used for:
The currently transmitted information of current stream medium data is determined as new to prestore transmission information.
The retransmission unit of stream medium data provided by the embodiment of the present invention can be performed any embodiment of that present invention and be provided
Stream medium data retransmission method, have the corresponding functional module of execution method and beneficial effect.
Example IV
Fig. 5 is the structural schematic diagram of the equipment in the embodiment of the present invention four.Fig. 5, which is shown, to be suitable for being used to realizing that the present invention is real
Apply the block diagram of the example devices 412 of mode.The equipment 412 that Fig. 5 is shown is only an example, should not be to the embodiment of the present invention
Function and use scope bring any restrictions.
As shown in figure 5, equipment 412 is showed in the form of common apparatus.The component of equipment 412 can include but is not limited to:
One or more processor 416, storage device 428 connect different system components (including storage device 428 and processor
416) bus 418.
Bus 418 indicates one of a few class bus structures or a variety of, including storage device bus or storage device control
Device processed, peripheral bus, graphics acceleration port, processor or total using the local of any bus structures in a variety of bus structures
Line.For example, these architectures include but is not limited to industry standard architecture (Industry Subversive
Alliance, ISA) bus, microchannel architecture (Micro Channel Architecture, MAC) bus is enhanced
Isa bus, Video Electronics Standards Association (Video Electronics Standards Association, VESA) local are total
Line and peripheral component interconnection (Peripheral Component Interconnect, PCI) bus.
Equipment 412 typically comprises a variety of computer system readable media.These media can be it is any can be by equipment
The usable medium of 412 access, including volatile and non-volatile media, moveable and immovable medium.
Storage device 428 may include the computer system readable media of form of volatile memory, such as arbitrary access
Memory (Random Access Memory, RAM) 430 and/or cache memory 432.Equipment 412 can be wrapped further
Include other removable/nonremovable, volatile/non-volatile computer system storage mediums.Only as an example, storage system
434 can be used for reading and writing immovable, non-volatile magnetic media (Fig. 5 do not show, commonly referred to as " hard disk drive ").Although
It is not shown in Fig. 5, the disc driver for reading and writing to removable non-volatile magnetic disk (such as " floppy disk ") can be provided, and
To removable anonvolatile optical disk, such as CD-ROM (Compact Disc Read-Only Memory, CD-ROM), number
Optic disk (Digital Video Disc-Read Only Memory, DVD-ROM) or other optical mediums) read-write CD drive
Dynamic device.In these cases, each driver can be connected by one or more data media interfaces with bus 418.It deposits
Storage device 428 may include at least one program product, which has one group of (for example, at least one) program module, this
A little program modules are configured to perform the function of various embodiments of the present invention.
Program/utility 440 with one group of (at least one) program module 442 can store in such as storage dress
It sets in 428, such program module 442 includes but is not limited to operating system, one or more application program, other program moulds
It may include the realization of network environment in block and program data, each of these examples or certain combination.Program module
442 usually execute function and/or method in embodiment described in the invention.
Equipment 412 can also be logical with one or more external equipments 414 (such as keyboard, direction terminal, display 424 etc.)
Letter, can also be enabled a user to one or more terminal interact with the equipment 412 communicate, and/or with make the equipment 412
Any terminal (such as network interface card, modem etc.) communication that can be communicated with one or more of the other computing terminal.This
Kind communication can be carried out by input/output (I/O) interface 422.Also, equipment 412 can also by network adapter 420 with
One or more network (such as local area network (Local Area Network, LAN), wide area network (Wide Area Network,
WAN) and/or public network, for example, internet) communication.As shown in figure 5, network adapter 420 passes through bus 418 and equipment 412
Other modules communication.It should be understood that although not shown in the drawings, other hardware and/or software mould can be used with bonding apparatus 412
Block, including but not limited to: microcode, terminal driver, redundant processor, external disk drive array, disk array
(Redundant Arrays of Independent Disks, RAID) system, tape drive and data backup storage system
System etc..
The program that processor 416 is stored in storage device 428 by operation, thereby executing various function application and number
According to processing, such as realize the retransmission method of stream medium data provided by the embodiment of the present invention, this method comprises:
By the currently transmitted information of received current stream medium data with prestore send information compared to pair, obtain compare tie
Fruit；
Based on comparison result, the corresponding object time stamp of current stream medium data is determined；
Current stream medium data and stamp of corresponding object time are forwarded to receiving end, so that receiving end is based on the object time
Stamp plays current stream medium data.
Embodiment five
The embodiment of the present invention five additionally provides a kind of computer readable storage medium, is stored thereon with computer program, should
The retransmission method of the stream medium data as provided by the embodiment of the present invention is realized when program is executed by processor, this method comprises:
By the currently transmitted information of received current stream medium data with prestore send information compared to pair, obtain compare tie
Fruit；
Based on comparison result, the corresponding object time stamp of current stream medium data is determined；
Current stream medium data and stamp of corresponding object time are forwarded to receiving end, so that receiving end is based on the object time
Stamp plays current stream medium data.
The computer storage medium of the embodiment of the present invention, can be using any of one or more computer-readable media
Combination.Computer-readable medium can be computer-readable signal media or computer readable storage medium.It is computer-readable
Storage medium for example may be-but not limited to-the system of electricity, magnetic, optical, electromagnetic, infrared ray or semiconductor, device or
Device, or any above combination.The more specific example (non exhaustive list) of computer readable storage medium includes: tool
There are electrical connection, the portable computer diskette, hard disk, random access memory (RAM), read-only memory of one or more conducting wires
(ROM), erasable programmable read only memory (EPROM or flash memory), optical fiber, portable compact disc read-only memory (CD-
ROM), light storage device, magnetic memory device or above-mentioned any appropriate combination.In this document, computer-readable storage
Medium can be any tangible medium for including or store program, which can be commanded execution system, device or device
Using or it is in connection.
Computer-readable signal media may include in a base band or as carrier wave a part propagate data-signal,
Wherein carry computer-readable program code.The data-signal of this propagation can take various forms, including but unlimited
In electromagnetic signal, optical signal or above-mentioned any appropriate combination.Computer-readable signal media can also be that computer can
Any computer-readable medium other than storage medium is read, which can send, propagates or transmit and be used for
By the use of instruction execution system, device or device or program in connection.
The program code for including on computer-readable medium can transmit with any suitable medium, including --- but it is unlimited
In wireless, electric wire, optical cable, RF etc. or above-mentioned any appropriate combination.
The computer for executing operation of the present invention can be write with one or more programming languages or combinations thereof
Program code, described program design language include object oriented program language-such as Java, Smalltalk, C++,
It further include conventional procedural programming language-such as " C " language or similar programming language.Program code can be with
It fully executes, partly execute on the user computer on the user computer, being executed as an independent software package, portion
Divide and partially executes or executed on remote computer or terminal completely on the remote computer on the user computer.It is relating to
And in the situation of remote computer, remote computer can pass through the network of any kind --- including local area network (LAN) or extensively
Domain net (WAN)-be connected to subscriber computer, or, it may be connected to outer computer (such as provided using Internet service
Quotient is connected by internet).
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of retransmission method of stream medium data characterized by comprising
By the currently transmitted information of received current stream medium data with prestore send information compared with pair, obtain comparison result；
Based on the comparison result, the corresponding object time stamp of the current stream medium data is determined；
The current stream medium data and stamp of corresponding object time are forwarded to receiving end, so that receiving end is based on the target
Timestamp plays the current stream medium data.
2. determining the current Streaming Media the method according to claim 1, wherein being based on the comparison result
The corresponding object time stamp of data, comprising:
If the comparison result is identical as the transmitting terminal mark for sending and including in information is prestored for currently transmitted information, basis
Current clock value determines the corresponding object time stamp of the current stream medium data；
If the comparison result is identical as the transmitting terminal mark for sending and including in information is prestored for currently transmitted information, basis
The currently transmitted information and transmission information is prestored, determines the corresponding object time stamp of the current stream medium data.
3. according to the method described in claim 2, it is characterized in that, determining the current stream medium data according to current clock value
Corresponding object time stamp, comprising:
Forwarding time stamp is calculated according to the current clock value and network time offset value, the forwarding time stamp dullness is passed
Increase；
Object time stamp is determined as the forwarding time stamp.
4. according to the method described in claim 2, it is characterized in that, according to the currently transmitted information and prestore transmission information,
Determine the corresponding object time stamp of the current stream medium data, comprising:
The object time stamp is determined according to original time stamp difference, and the original time stamp difference is the currently transmitted information
In original time stamp and it is described prestore send information in original time stamp difference.
5. according to the method described in claim 4, it is characterized in that, determining the object time according to original time stamp difference
Stamp, comprising:
If original time stamp difference is less than or equal to preset difference value threshold value, object time stamp is determined as described original
Time tolerance and the sum of the object time stamp prestored in transmission information.
6. according to the method described in claim 4, it is characterized in that, determining the object time according to original time stamp difference
Stamp, comprising:
If the original time stamp difference is greater than preset difference value threshold value, object time stamp is determined as forwarding time
Stamp.
7. determining the current Streaming Media the method according to claim 1, wherein being based on the comparison result
After the corresponding object time stamp of data, further includes:
The currently transmitted information of the current stream medium data is determined as new to prestore transmission information.
8. a kind of retransmission unit of stream medium data, which is characterized in that including；
Comparison module, for by the currently transmitted information of received current stream medium data with prestore send information compared with pair, obtain
To comparison result；
Timestamp determining module determines the current stream medium data corresponding object time for being based on the comparison result
Stamp；
Forwarding module, for the current stream medium data and stamp of corresponding object time to be forwarded to receiving end, so as to receive
End group plays the current stream medium data in object time stamp.
9. a kind of equipment, which is characterized in that the equipment includes:
One or more processors；
Storage device, for storing one or more programs；
When one or more of programs are executed by one or more of processors, so that one or more of processors are real
The now retransmission method of the stream medium data as described in any in claim 1-7.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
The retransmission method of the stream medium data as described in any in claim 1-7 is realized when execution.
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