CN106341713A - Multimedia synchronous play method, apparatus and system, and terminal - Google Patents
Multimedia synchronous play method, apparatus and system, and terminal Download PDFInfo
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- CN106341713A CN106341713A CN201610882817.5A CN201610882817A CN106341713A CN 106341713 A CN106341713 A CN 106341713A CN 201610882817 A CN201610882817 A CN 201610882817A CN 106341713 A CN106341713 A CN 106341713A
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- media data
- system clock
- data packet
- playback equipment
- play
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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
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4305—Synchronising client clock from received content stream, e.g. locking decoder clock with encoder clock, extraction of the PCR packets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/44004—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video buffer management, e.g. video decoder buffer or video display buffer
-
- 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
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47217—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for controlling playback functions for recorded or on-demand content, e.g. using progress bars, mode or play-point indicators or bookmarks
Abstract
The embodiments of the invention provide a multimedia synchronous play method, apparatus and system, and a terminal. According to the embodiments of the invention, a cached media data packet is played, then whether a system clock synchronizes with a system clock of a reference play device is detected, if not, current play progress information of the reference play device is obtained, according to the play progress information, a target media data packet currently needing to be played is determined from the cached media data packet, and the target media data packet is played. According to the scheme, multimedia play synchronization between multimedia play devices can be improved.
Description
Technical field
The present invention relates to synchronous play-back technology field and in particular to a kind of multimedia synchronous play method, device, system and
Terminal.
Background technology
With growth in the living standard, home audio-visual devices play important role in the life of people.Currently, will
Multiple multimedia play equipments (for example, audio amplifier, player etc.) and control device are interconnected by wired or wireless network,
One multimedia play system of composition, synchronous broadcasting identical multimedia such as music, it has been widely used.
In above-mentioned multimedia play system, each multimedia play equipment has independent clock system.Each is play
Equipment plays multimedia according to the clock system of its own.However, each multimedia play equipment and reference device are (general
For control device) clock system not always synchronous.Each multimedia play equipment and reference device each other may be used
Can there is the trickle time difference.When multiple multimedia play equipments play identical music, the above-mentioned trickle time difference leads to each
The playing progress rate of multimedia play equipment is inconsistent, thereby results in and plays multimedia synchronicity ratio between multimedia play equipment
Relatively low.
Content of the invention
The embodiment of the present invention provides a kind of multimedia synchronous to play method, device, system and terminal, can improve multimedia
Multimedia synchronicity is play between playback equipment.
The embodiment of the present invention provides a kind of multimedia synchronous to play method, comprising:
Play the media data packet of caching；
Whether detecting system clock is synchronous with the system clock with reference to playback equipment；
If it is not, then obtaining the described playback progress information current with reference to playback equipment；
According to described playback progress information from the media data packet of caching, determine the target medium number being currently needed for playing
According to bag, and play described targeted media data bag.
Accordingly, the embodiment of the present invention also provides a kind of multimedia synchronous to play device, comprising:
Broadcast unit, for playing the media data packet of caching；
Detector unit, whether synchronous with the system clock with reference to playback equipment for detecting system clock；
Acquiring unit, for detector unit detecting system clock with reference to playback equipment system clock asynchronous when,
Obtain the described playback progress information current with reference to playback equipment；
Lock unit, from the media data packet of caching, determines and is currently needed for broadcasting for according to described playback progress information
The targeted media data bag put, and play described targeted media data bag.
Accordingly, the embodiment of the present invention also provides a kind of terminal, comprising:
Be stored with the memorizer of executable program code；
The processor coupling with described memorizer；
Described processor calls the described executable program code of storage in described memorizer, and the execution embodiment of the present invention carries
For arbitrary multimedia synchronous play method.
Accordingly, the embodiment of the present invention additionally provides a kind of multimedia synchronous Play System, comprising: control device and at least
One playback equipment；Described control device is connected with described playback equipment；Described playback equipment is used for executing the embodiment of the present invention
The arbitrary multimedia synchronous providing play method.
The embodiment of the present invention is using the media data packet playing caching, it is then detected that system clock and reference playback equipment
System clock whether synchronous, if it is not, then obtaining the described playback progress information current with reference to playback equipment, according to described broadcasting
Progress msg, from the media data packet of caching, determines the targeted media data bag being currently needed for playing, and plays described target
Media data packet.The program can be when asynchronous with the system clock of reference playback equipment, according to current the broadcasting of reference device
Put progress msg and play media data packet, thus realizing synchronously playing multi-medium data with reference to playback equipment, accordingly, with respect to
For prior art, can improve and between multimedia play equipment, play multimedia synchronicity.
Brief description
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, will make to required in embodiment description below
Accompanying drawing is briefly described.It should be evident that drawings in the following description are only some embodiments of the present invention, for
For those skilled in the art, on the premise of not paying creative work, can also be obtained other attached according to these accompanying drawings
Figure.
Fig. 1 is the schematic flow sheet that the multimedia synchronous that the embodiment of the present invention one provides play method.
Fig. 2 is the schematic diagram of a scenario of the multimedia synchronous Play System that the embodiment of the present invention two provides.
Fig. 3 is the schematic flow sheet that the multimedia synchronous that the embodiment of the present invention two provides play method.
Fig. 4 is the structural representation that the first multimedia synchronous that the embodiment of the present invention three provides play device.
Fig. 5 is the structural representation that the second multimedia synchronous that the embodiment of the present invention three provides play device.
Fig. 6 is the structural representation that the third multimedia synchronous that the embodiment of the present invention three provides play device.
Fig. 7 is the structural representation that the 4th kind of multimedia synchronous that the embodiment of the present invention three provides play device.
Fig. 8 is the structural representation of the terminal that the embodiment of the present invention four provides.
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 describes.Obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, the every other enforcement that those skilled in the art are obtained under the premise of not making creative work
Example, broadly falls into the scope of protection of the invention.
Term " first " in description and claims of this specification and above-mentioned accompanying drawing, " second ", " the 3rd " etc.
(if present) is for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that this
The object of sample description can exchange in the appropriate case.Additionally, term " comprising " and " having " and their any deformation, meaning
Figure is to cover non-exclusive comprising.For example, contain the process of series of steps, method or contain a series of modules or list
The device of unit, terminal, system are not necessarily limited to those steps or module or the unit clearly listed, and can also include unclear
The step listed or module or unit it is also possible to include for these processes, method, device, terminal or intrinsic its of system
Its step or module or unit.
The embodiment of the present invention provides a kind of multimedia synchronous to play method, device, system and terminal, is carried out respectively below
Describe in detail.
Embodiment one
The angle playing device from multimedia synchronous is described by the present embodiment, and it is concrete that this multimedia synchronous plays device
Can be so that, in integrated playback equipment, this playback equipment can be the playback equipment such as terminal (smart mobile phone, panel computer etc.), audio amplifier.
A kind of multimedia synchronous play method, comprising: play the media data packet of caching, it is then detected that system clock with
Whether synchronous with reference to the system clock of playback equipment, if it is not, then obtaining the current playback progress information of this reference playback equipment, root
According to this playback progress information from the media data packet of caching, determine the targeted media data bag being currently needed for playing, and play
This targeted media data bag.
As shown in figure 1, this multimedia synchronous plays method, idiographic flow may include that
101st, play the media data packet of caching.
Specifically, the media number that can be sent with receiving control apparatus (as control terminal etc.) or source device (server etc.)
According to bag, and buffered media data bag, then, play the media data packet of caching.
Wherein, media data packet may include that package identification (sequence number or numbering), the reproduction time information of packet
(timestamp) and segment of media data；Now, step " playing the media data packet of caching " may include that
According to package identification in media data packet (sequence number or numbering), initial reproduction time information (timestamp) and
System clock, plays segment of media data.
In the present embodiment, media data packet can be generated using uniform packing rule.
This segment of media data can be a fragment or a part for original media data.
Wherein, the form of segment of media data can be multiple, such as, mp3 (moving picture experts group
Audio layer iii), the form such as wma (windows media audio).
102nd, whether detecting system clock is synchronous with the system clock with reference to playback equipment, if it is not, then execution step 103.
Wherein, can be selected by control device with reference to playback equipment, such as, reference can be chosen from multiple playback equipments
Playback equipment it shall be noted that: if when control device is also received from the media data that status is sent out in addition to distributing media data
During broadcasting, this control device is also playback equipment, and now, with reference to playback equipment can be playback equipment or control sets
Standby.
Specifically, the system clock of reference device first can be obtained from parameter playback equipment, it is then detected that the system of itself
Whether clock is synchronous with the system clock with reference to playback equipment.
In the present embodiment, the detecting system clock mode whether synchronous with the system clock with reference to playback equipment can have many
Kind, such as, can first obtain the time difference between two systems clock, then, synchronization be determined whether based on time difference；
Namely step " whether detecting system clock is synchronous with the system clock with reference to playback equipment " may include that
Obtain system clock and with reference to the time error between the system clock of playback equipment；
Judge whether this time error is more than predetermined threshold value；
If more than predetermined threshold value it is determined that system clock is asynchronous with the system clock with reference to playback equipment；
If no more than predetermined threshold value is it is determined that system clock is synchronous with the system clock with reference to playback equipment.
That is, less in time error, do not affect during synchronous play quality it is believed that the system clock of playback equipment and ginseng
Examine the clock near-synchronous of playback equipment, now need not synchronize broadcasting and adjust；If otherwise time error is larger, impact is synchronous
It is believed that the system clock of playback equipment is asynchronous with reference clock during play quality, now need to synchronize broadcasting tune
Section.
Wherein, predetermined threshold value can set according to the actual requirements, such as can be arranged according to the patience of user's synchronization discrepancy.
Alternatively, response speed and the shortening multimedia time that finishes playing are play in order to improve, the present embodiment is permissible
Detection is synchronized after being cached to some；Namely before step 102, the present embodiment method can also include:
Obtain the quantity of the media data packet of current cache；
Judge whether this quantity is more than predetermined number；
If so, the then perform detection system clock step whether synchronous with the system clock with reference to playback equipment.
Wherein, obtain current cache the quantity of media data packet mode can have multiple, such as, can by count
Mode obtaining, that is, step " obtaining the quantity of the media data packet of current cache " may include that
The media data packet of current cache is counted, obtains count value；
Obtain the quantity of the media data packet of current cache according to this count value.
103rd, obtain the current playback progress information of this reference playback equipment.
Specifically, request can be obtained to sending playing progress rate with reference to playback equipment, then, receive with reference to playback equipment root
Obtain the playback progress information that request returns according to this playing progress rate；Current broadcasting can also actively be sent by with reference to playback equipment
Progress msg, now, multimedia synchronous are play device and this playback progress information can be received.
Wherein, playback progress information may include that with reference to the current initial reproduction time information of playback equipment (as media number
Reproduction time stamp according to bag), the currently playing mark of media data packet etc..
104th, according to this playback progress information from the media data packet of caching, determine the target medium being currently needed for playing
Packet, and play this targeted media data bag.
Specifically, when this playback progress information includes: this reference playback equipment is currently playing (to be play or will broadcast
Put) the mark of media data packet when, step " according to this playback progress information from the media data packet of caching, determines current
Need the targeted media data bag play " may include that
Determine media data packet corresponding with this mark from the media data packet of caching, and will matchmaker corresponding with this mark
Volume data bag is as the targeted media data bag being currently needed for broadcasting.
For example, the system clock in reference device is 1 minute, now will play media data packet 6 with reference to playback equipment, and broadcast
The system clock putting equipment is 1 point of 1s, and now playback equipment will play media data packet 7；Playback equipment detects two systems
Time error between clock is more than predetermined threshold value 10ms for 1s, and then, playback equipment obtains currently playing with reference to playback equipment
Media data packet numbering, that is, 6, now, playback equipment can redefine, according to this numbering, the target medium needing to play
Packet is media data packet 6 (originally needing to play media data packet 7, now change and broadcast media data packet 6), that is, knock-on to broadcasting
Media data packet 6；So playback equipment and reference device can realize synchronous broadcasting.
Again such as, the system clock in reference device is 1 point of 2s, now will play media data packet 8 with reference to playback equipment,
The system clock of playback equipment is 1 point of 1s, and now playback equipment will play media data packet 7；Playback equipment detects two
Time error between system clock is more than predetermined threshold value 10ms for 1s, and then, playback equipment obtains currently to be broadcast with reference to playback equipment
The numbering of the media data packet put, that is, 8, now, playback equipment can redefine, according to this numbering, the target matchmaker needing to play
Volume data bag is media data packet 8 (originally needing to play media data packet 7, now change and broadcast media data packet 8), that is, skip media
Packet 7 directly plays media data packet 8；So playback equipment and reference device can realize synchronous broadcasting.
Specifically, when this playback progress information includes: this reference playback equipment is currently playing (to be play or will broadcast
Put) media data packet initial reproduction time information (reproduction time stamp)；Now step " is postponed according to this playback progress information
In the media data packet deposited, determine the targeted media data bag being currently needed for playing " may include that
Media data packet corresponding with this initial reproduction time information is determined from the media data packet of caching, and will be with this
The corresponding media data packet of initial reproduction time information is as being currently needed for the targeted media data bag play.
In the present embodiment, each media data packet all includes the initial reproduction time information of media data packet, such as timestamp,
Therefore, it can the media number from caching for the initial reproduction time information according to the media data packet currently playing with reference to playback equipment
Find corresponding packet according in bag, play out.
For example, the currently playing media data packet of playback equipment 4, with reference to the currently playing media data packet 5 of playback equipment
Timestamp is 0:06, playback equipment detect with reference to playback equipment system clock asynchronous when, obtain this timestamp 0:
06, then, caching media data packet in search media data packet corresponding with this timestamp 0:06, now can find and
The corresponding media data packet of this timestamp 0:06 is media data packet 5；At this point it is possible to skip media data packet 4 to play media number
According to bag 5.
Alternatively, when system clock system clock and reference playback equipment is detected is synchronous, can be delayed with normal play
The media data packet deposited, and above-mentioned count value can be reset.Afterwards, the media data that can continue to start from scratch to caching
Counted, to obtain the quantity of the media data packet of current cache, circulated execution step 102-104.
Alternatively, execution step 102 can be returned in this targeted media data bag of broadcasting, to ensure follow-up media play
Can preserve synchronous always with parameter playback equipment.
From the foregoing, it will be observed that the embodiment of the present invention is using the media data packet playing caching, it is then detected that system clock and reference
Whether the system clock of playback equipment is synchronous, if it is not, then obtaining the current playback progress information of this reference playback equipment, according to this
Playback progress information, from the media data packet of caching, determines the targeted media data bag being currently needed for playing, and plays this mesh
Mark media data packet.The program can be current according to reference device when asynchronous with the system clock of reference playback equipment
Playback progress information plays media data packet, thus realizing synchronously playing multi-medium data with reference to playback equipment, therefore, relatively
For prior art, can improve and between multimedia play equipment, play multimedia synchronicity.
Additionally, the embodiment of the present invention can also be selected with reference to playback equipment so that playback equipment and ginseng in playback equipment
Examine and play synchronization between playback equipment, between playback equipment, synchronize coordination, the load of control device can be mitigated；And
And embodiment of the present invention playback equipment can be constantly in broadcast state, play output normally, reduce to broadcasting output module
Or the impact of rear class equipment.
Embodiment two
Multimedia synchronous according to described by embodiment one play method, are described in further detail citing below.
In the present embodiment, it is integrated in playing device with the multimedia synchronous described by embodiment one in slave and is
Example is described in detail.
With reference to Fig. 2, present embodiments provide a kind of multimedia synchronous Play System, comprising: source device 10, main control device
20th, at least one slave 30；Can be interconnected by network phase between this source device 10, main control device 20, slave 30
Connect.
Wherein, main control device 20 is used for controlling slave, and it can be terminal, such as mobile phone, panel computer etc., this master control
Equipment can also be playback equipment, such as, the playback equipment such as audio amplifier；The present embodiment will so that main control device 20 is as terminal as a example be carried out
Explanation.
This slave 30 can be the playback equipment being controlled by main control device 20, and this slave can be audio amplifier, tool
There are the playback equipments such as the terminal of playing function.
Wherein, source device 10 is used for providing multi-medium data to be played, and it can be with network equipments such as servers.
Below the multimedia synchronous introducing present invention offer based on said system are play method.
Before synchronous broadcasting multimedia, the present embodiment can choose an equipment as same from multiple slaves 30
The reference device that step is play, in synchronous playing process, when the clock of all slaves is all by system with this reference device
Clock preserves synchronous.Such as, a slave can be chosen from multiple slaves 30 by main control device 20 to broadcast as synchronous
The reference device put, then, the mark of reference device is sent to each slave.
If it is to be noted that when main control device 20 is also received from the media data that status is sent out in addition to distributing media data
During broadcasting, this main control device 20 is also slave.At this point it is possible to choosing main control device 20 is that equipment is broadcast in reference.
As shown in figure 3, this multimedia synchronous plays method, idiographic flow can be such that
301st, source device 10 sends multi-medium data to main control device 20.
Such as, source device 10 receive main control device send data acquisition request, then, according to this data acquisition request to
Main control device 20 sends the multi-medium data of response.
Wherein, this multi-medium data can be voice data, audio, video data etc..This voice data includes but is not limited to
cd、wav、mp3(moving picture experts group audio layer iii)、wma(windows media
The voice data of form such as audio).
In other embodiment, main control device 20 can be from locally stored middle acquisition multi-medium data.
302nd, main control device 20 is packed to multi-medium data, obtains multiple media data packet.
Main control device 20 can be carried out to media data according to certain unit (using size of data, media frame etc. as unit)
Packing, to obtain multiple media data packet.Such as, media data can be packaged into the equal media data of multiple size of data
Bag or the equal media data packet of playing duration.For example, it is possible to this voice data is packaged into audio frequency length is 200ms's
Multiple packets.
Wherein, media data packet may include that the initial reproduction time information (as timestamp) of package identification, packet
And segment of media data.
303rd, main control device 20 sends media data packet to each slave 30.
Main control device 20 can send media data packet according to the mark of media data packet to each slave 30；Than
As media data packet is sent to slave 30 by numbering according to packet successively.
304th, slave 30 buffered media data bag counting.
305th, slave 30 judges that whether current count value is more than predetermined threshold value, if so, execution step 306, if it is not, then
Return execution step 305.
This predetermined threshold value can set according to the actual requirements, can be such as 7,8,9 etc..
306th, slave 30 detects the time error between its own system clock and the system clock of reference device.
Such as, slave 30 can to main control device 20 ask reference device system clock (also referred to as reference when
Clock), then, the system clock of itself and this reference clock are carried out part by slave 30, obtain between 2 two clocks
Time error, i.e. time error.
307th, whether slave 30 judges this time error less than default error, if it is not, execution step 308, if so, then
Execution step 310.
Such as, time error is 2ms, if default error is for 1ms, now may determine that this time error is more than default poor
Value, now, clocking error is larger, needs, therefore execution step 308 synchronous into row clock.
Again such as, time error is 0.5ms, if default error is for 1ms, now may determine that this time error is less than pre-
If difference, now, clocking error is less, can not enter row clock synchronization, therefore, can go to execution step 310 and reset to counting,
Wait synchronous detecting next time.
308th, slave 30 obtains the current playback progress information of reference device, and according to playback progress information in caching
Media data packet in determine be currently needed for play targeted media data bag.
Wherein, playback progress information may include that with reference to the current initial reproduction time information of playback equipment (as media number
Reproduction time stamp according to bag), the currently playing mark of media data packet etc..
Such as, this playback progress information includes: this reference playback equipment currently playing (playing or will play)
Media data packet mark；Now, slave 30 can from caching media data packet determine corresponding with this mark
Media data packet, and using media data packet corresponding with this mark as the targeted media data bag being currently needed for broadcasting.
For example, the system clock in reference device is 1:05, the now start time information 1:05 according to media data packet,
Reference device will play media data packet 10, and the system clock of slave is 1 minute, now, will be play according to playback equipment
Media data packet 9；The time error that slave detects between two systems clock is more than predetermined threshold value 20ms for 5s, so
Afterwards, slave obtains the numbering of the currently playing media data packet of reference device, and that is, 10, now, slave can basis
This numbering redefine need the targeted media data bag play be media data packet 10 (originally need to play media data packet 9,
Now change and broadcast media data packet 10), that is, knock-on to broadcasting media data packet 10；So slave and reference device can be realized
Synchronous broadcasting.
Specifically, when this playback progress information includes: this reference playback equipment is currently playing (to be play or will broadcast
Put) media data packet initial reproduction time information (reproduction time stamp)；Now, slave can be from the media number of caching
According to determining media data packet corresponding with this initial reproduction time information in bag, and will be corresponding with this initial reproduction time information
Media data packet is as the targeted media data bag being currently needed for broadcasting.
For example, the currently playing media data packet of slave 7, with reference to the currently playing media data packet 8 of playback equipment
Timestamp is 0:09, and slave, when detecting asynchronous with the system clock of reference device, obtains this timestamp 0:09, so
Afterwards, search media data packet corresponding with this timestamp 0:09 in the media data packet of caching, when now can find with this
Between stamp the corresponding media data packet of 0:09 be media data packet 8；At this point it is possible to skip media data packet 7 to play media data packet
8.
309th, slave 30 plays targeted media data bag, returns execution step 306.
Such as, slave 30 script needs to play media data packet 8, now can jump to broadcasting reference device and currently broadcast
The media data packet 9 put, or media data packet 7 etc..
310th, current counting is reset by slave 30, return to step 304.
When being embodied as, the present invention is not limited by the execution sequence of each described step, is not producing conflict
In the case of, some steps can also be carried out or be carried out simultaneously using other orders.
From the foregoing, it will be observed that the embodiment of the present invention adopts slave 30 to play the media data packet of caching, then, slave
Whether 30 detecting system clocks are synchronous with the system clock of reference device, if it is not, then obtain the current broadcasting of this reference device entering
Degree information, according to this playback progress information from the media data packet of caching, determines the targeted media data being currently needed for playing
Bag, and play this targeted media data bag.The program can be when asynchronous with the system clock of reference playback equipment, according to ginseng
The current playback progress information of equipment of examining plays media data packet, thus realizing synchronously playing multimedia number with reference to playback equipment
According to, for prior art, can improving and play multimedia synchronicity between multimedia play equipment.
Additionally, the embodiment of the present invention can also select reference device in playback equipment so that playback equipment is broadcast with reference
Put and play synchronization between equipment, between playback equipment, synchronize coordination, the load of main control device can be mitigated；And this
Inventive embodiments playback equipment can be constantly in broadcast state, and it is normal to play output, reduce to play output module or
The impact of rear class equipment.
Embodiment three
In order to preferably implement above method, the embodiment of the present invention also provides a kind of multimedia synchronous to play device, and this is many
Media sync playing device can be integrated in playback equipment, and this playback equipment can be smart mobile phone, panel computer, audio amplifier etc.
Equipment.
As shown in figure 4, multimedia synchronous play device 400 and may include that broadcast unit 401, detector unit 402, obtaining
Unit 403 and lock unit 404, as follows:
Broadcast unit 401, for playing the media data packet of caching；
Detector unit 402, whether synchronous with the system clock with reference to playback equipment for detecting system clock；
Acquiring unit 403, for different from the system clock with reference to playback equipment in detector unit 402 detecting system clock
During step, obtain the current playback progress information of this reference playback equipment；
Lock unit 404, from the media data packet of caching, determines and is currently needed for broadcasting for according to this playback progress information
The targeted media data bag put, and play this targeted media data bag.
Wherein, with reference to Fig. 5, this detector unit 402 may include that error obtains subelement 4021 and error judgment subelement
4022；
This error obtain subelement 4021, for obtain system clock and with reference to playback equipment system clock between when
Between error；
This error judgment subelement 4022, for judging whether this time error is more than predetermined threshold value；
If more than predetermined threshold value it is determined that system clock is asynchronous with the system clock with reference to playback equipment；
If no more than predetermined threshold value is it is determined that system clock is synchronous with the system clock with reference to playback equipment.
Wherein, this playback progress information includes: the mark of the currently playing media data packet of this reference playback equipment；This
When, lock unit 404, can specifically for from caching media data packet in determine media data packet corresponding with this mark,
And using media data packet corresponding with this mark as the targeted media data bag being currently needed for broadcasting.
Alternatively, with reference to Fig. 6, the present embodiment multimedia synchronous are play device 400 and can also be included:
Number obtainment unit 405, in detector unit detecting system clock with the system clock with reference to playback equipment being
Before no synchronization, obtain the quantity of the media data packet of current cache；
Quantity judging unit 406, for judging whether this quantity is more than predetermined number；
Now, this detector unit 402, for when quantity judging unit 406 judges that quantity is more than predetermined number, executing inspection
The examining system clock step whether synchronous with the system clock with reference to playback equipment.
Wherein, the present embodiment number obtainment unit 405 can be specifically for: the media data packet of current cache is counted
Number, obtains count value；Obtain the quantity of the media data packet of current cache according to this count value.
Alternatively, with reference to Fig. 7, the present embodiment multimedia synchronous are play device 400 and can also be included: count processing unit
407；This counting processing unit 407, for when detector unit detecting system clock and the system clock synchronization with reference to playback equipment
When, this count value is reset.
When being embodied as, above unit can be realized as independent entity it is also possible to carry out combination in any, makees
To realize for same or several entities, being embodied as of above unit can be found in embodiment of the method above, and here is not
Repeat again.
From the foregoing, it will be observed that the embodiment of the present invention adopts broadcast unit 401 to play the media data packet of caching, then, by detecting
Whether unit 402 detecting system clock is synchronous with the system clock with reference to playback equipment, if it is not, then being obtained by acquiring unit 403
The current playback progress information of this reference playback equipment, by lock unit 404 according to this playback progress information from the media caching
In packet, determine the targeted media data bag being currently needed for playing, and play this targeted media data bag.The program can be
When asynchronous with the system clock of reference playback equipment, media data is play according to the current playback progress information of reference device
Bag, thus realizing synchronously playing multi-medium data with reference to playback equipment, for prior art, can improve
Multimedia synchronicity is play between multimedia play equipment.
Additionally, the embodiment of the present invention can also be selected with reference to playback equipment so that playback equipment and ginseng in playback equipment
Examine and play synchronization between playback equipment, between playback equipment, synchronize coordination, the load of control device can be mitigated；And
And embodiment of the present invention playback equipment can be constantly in broadcast state, play output normally, reduce to broadcasting output module
Or the impact of rear class equipment.
Example IV
The embodiment of the present invention also provides a kind of terminal, as shown in figure 8, this terminal 500 can include radio frequency (rf, radio
Frequency) circuit 501, the memorizer 502 including one or more computer-readable recording mediums, input block
503rd, display unit 504, sensor 505, voicefrequency circuit 506, Wireless Fidelity (wifi, wireless fidelity) module
507th, the parts such as processor 508 and the power supply 509 of or more than one processing core are included.People in the art
Member, it is appreciated that the restriction of the terminal structure not structure paired terminal shown in Fig. 8, can include more more or less of than illustrating
Part, or combine some parts, or different part arrangements.
Radio circuit 501 can be used for receiving and sending messages, or the reception of signal and transmission in communication process, especially, by base station
Downlink information receive after, transfer to one or more than one processor 508 processed；In addition, up data is activation will be related to
To base station.Generally, radio circuit 501 includes but is not limited to antenna, at least one amplifier, tuner, one or more vibration
Device, subscriber identity module (sim, subscriber identitymodule) card, transceiver, bonder, low-noise amplifier
(lna, low noise amplifier), duplexer etc..Additionally, radio circuit 501 can also by radio communication and network and
Other equipment communicates.This radio communication can use arbitrary communication standard or agreement, including but not limited to global system for mobile telecommunications system
System (gsm, global system of mobile communication), general packet radio service (gprs, general
Packet radio service), CDMA (cdma, code division multiple access), wideband code division many
Location (wcdma, wideband code division multiple access), Long Term Evolution (lte, long term
Evolution), Email, Short Message Service (sms, short messaging service) etc..
Memorizer 502 can be used for storing application program data.Include and can hold in the application program of memorizer 502 storage
Line program code.Application program can form various functions module.Processor 508 passes through operation and is stored in answering of memorizer 502
With program, thus executing various function application and data processing.Memorizer 502 can mainly include storing program area and storage number
According to area, wherein, storing program area can application program needed for storage program area, at least one function (such as sound plays work(
Energy, image player function etc.) etc.；Storage data field can store according to terminal using created data (such as voice data,
Phone directory etc.) etc..Additionally, memorizer 502 can include high-speed random access memory, non-volatile memories can also be included
Device, for example, at least one disk memory, flush memory device or other volatile solid-state parts.Correspondingly, memorizer
502 can also include Memory Controller, to provide the access to memorizer 502 of processor 508 and input block 503.
Input block 503 can be used for numeral, character information or the user's characteristic information (such as fingerprint) of receives input, and
Produce the keyboard relevant with user setup and function control, mouse, action bars, optics or trace ball signal input.Specifically
Ground, input block 503 can include fingerprint recognition module.In certain embodiments, input block 503 can also include touch-sensitive table
Face.Touch sensitive surface, also referred to as touch display screen or Trackpad, can collect user thereon or neighbouring touch operation (such as
User uses the operation on Touch sensitive surface or near Touch sensitive surface of any suitable object such as finger, stylus or adnexa), and
Corresponding attachment means are driven according to formula set in advance.Optionally, Touch sensitive surface may include touch detecting apparatus and touch
Two parts of controller.Wherein, touch detecting apparatus detect the touch orientation of user, and detect the signal that touch operation brings,
Transmit a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and is converted into touching
Point coordinates, then give processor 508, and can the order sent of receiving processor 508 being executed.Furthermore, it is possible to using electricity
The polytypes such as resistive, condenser type, infrared ray and surface acoustic wave realize Touch sensitive surface.Except Touch sensitive surface, input block 503
Other input equipments can also be included.Specifically, other input equipments can include but is not limited to physical keyboard, function key (ratio
As volume control button, switch key etc.), trace ball, mouse, one or more of action bars etc..
Display unit 504 can be used for display and by the information of user input or is supplied to the information of user and the various of terminal
Graphical user interface, these graphical user interface can be made up of figure, text, icon, video and its combination in any.Display
Unit 504 may include display floater.Optionally, can using liquid crystal display (lcd, liquid crystal display),
The forms such as Organic Light Emitting Diode (oled, organic light-emitting diode) are configuring display floater.Further
, Touch sensitive surface can cover display floater, when Touch sensitive surface detects thereon or after neighbouring touch operation, sends process to
Device 508, to determine the type of touch event, provides accordingly according to the type of touch event on a display panel with preprocessor 508
Visual output.Although in fig. 8, Touch sensitive surface and display floater are to realize inputting as two independent parts and to input
Function, but in some embodiments it is possible to will be integrated to Touch sensitive surface and display floater and realize input and output function.
Terminal may also include at least one sensor 505, such as optical sensor, motion sensor and other sensors.
Specifically, optical sensor may include ambient light sensor and proximity transducer, and wherein, ambient light sensor can be according to ambient light
The brightness to adjust display floater for the light and shade, proximity transducer can cut out display floater and/or the back of the body when terminal moves in one's ear
Light.As one kind of motion sensor, Gravity accelerometer can detect (generally three axles) acceleration in all directions
Size, can detect that size and the direction of gravity when static, can be used for identify mobile phone attitude application (such as horizontal/vertical screen switching,
Dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap) etc.；Can also configure as terminal
Gyroscope, barometer, drimeter, thermometer, the other sensors such as infrared ray sensor, will not be described here.
Voicefrequency circuit 506 can provide the audio interface between user and terminal by speaker, microphone.Voicefrequency circuit
The voice data receiving can be converted into the signal of telecommunication by 506, be transferred to speaker, be converted to acoustical signal output by speaker；
On the other hand, the acoustical signal of collection is converted to the signal of telecommunication by microphone, is converted to audio frequency number by voicefrequency circuit 506 after being received
According to then after processing voice data output processor 508, through radio circuit 501 being sent to such as another terminal, or by sound
Frequency data output is to memorizer 502 to process further.Voicefrequency circuit 506 is also possible that earphone jack, to provide peripheral hardware
Earphone and the communication of terminal.
Wireless Fidelity (wifi) belongs to short range wireless transmission technology, and terminal can be helped by wireless fidelity module 507
User sends and receive e-mail, browses webpage and access streaming video etc., and it has provided the user wireless broadband internet and has accessed.
Although Fig. 8 shows wireless fidelity module 507, but it is understood that, it is simultaneously not belonging to must be configured into of terminal, completely may be used
To omit in the scope of essence not changing invention as needed.
Processor 508 is the control centre of terminal, using the various pieces of various interfaces and the whole terminal of connection, leads to
Cross and run or execute the application program being stored in memorizer 502, and call the data being stored in memorizer 502, execution
The various functions of terminal and processing data, thus carry out integral monitoring to terminal.Optionally, processor 508 may include one or
Multiple processing cores；Preferably, processor 508 can integrated application processor and modem processor, wherein, application processor
Main process operating system, user interface and application program etc., modem processor mainly processes radio communication.It is appreciated that
, above-mentioned modem processor can not also be integrated in processor 508.
Terminal also includes the power supply 509 (such as battery) powered to all parts.Preferably, power supply can pass through power supply pipe
Reason system is logically contiguous with processor 508, thus realizing management charging, electric discharge and power managed by power-supply management system
Etc. function.Power supply 509 can also include one or more direct current or alternating current power supply, recharging system, power failure inspection
The random component such as slowdown monitoring circuit, power supply changeover device or inverter, power supply status indicator.
Although not shown in Fig. 8, terminal can also include photographic head, bluetooth module etc., will not be described here.
Specifically in the present embodiment, the processor 508 in terminal can be according to following instruction, will be one or more
The corresponding executable program code of process of application program is loaded in memorizer 502, and to be run by processor 508 and be stored in
Application program in memorizer 502, thus realizing various functions:
Play the media data packet of caching, it is then detected that whether system clock is same with the system clock with reference to playback equipment
Step, if it is not, then obtain the described playback progress information current with reference to playback equipment, according to described playback progress information from caching
In media data packet, determine the targeted media data bag being currently needed for playing, and play described targeted media data bag.
Preferably, whether described detecting system clock is synchronous with the system clock with reference to playback equipment, comprising:
Obtain system clock and with reference to the time error between the system clock of playback equipment；
Judge whether described time error is more than predetermined threshold value；
If more than predetermined threshold value it is determined that system clock is asynchronous with the system clock with reference to playback equipment；
If no more than predetermined threshold value is it is determined that system clock is synchronous with the system clock with reference to playback equipment.
Preferably, described playback progress information includes: the mark of the described media data packet currently playing with reference to playback equipment
Know；
Described according to described playback progress information from caching media data packet, determine be currently needed for play target matchmaker
Volume data bag, comprising:
Determine from the media data packet of caching and the corresponding media data packet of described mark, and will be corresponding with described mark
Media data packet as be currently needed for play targeted media data bag.
Preferably, the also achievable following functions of this processor 508:
Before detecting system clock with the system clock with reference to playback equipment whether synchronization, obtain the media of current cache
The quantity of packet；Judge whether described quantity is more than predetermined number, if so, then perform detection system clock sets with reference to broadcasting
The whether synchronous step of standby system clock.
Wherein, obtain the quantity of the media data packet of current cache, comprising:
The media data packet of current cache is counted, obtains count value；
Obtain the quantity of the media data packet of current cache according to described count value；
Now, processor 508 can also realize following functions:
When system clock is synchronous with the system clock of reference playback equipment, described count value is reset.
Aforesaid operations specifically can be found in embodiment of the method above, will not be described here.
From the foregoing, it will be observed that embodiments providing a kind of terminal, the media data packet that this terminal is cached using broadcasting, so
Afterwards, whether detecting system clock is synchronous with the system clock with reference to playback equipment, if it is not, then obtain described reference playback equipment working as
Front playback progress information, according to described playback progress information from the media data packet of caching, determines and is currently needed for broadcasting
Targeted media data bag, and play described targeted media data bag.The program can be in the system clock with reference playback equipment
When asynchronous, media data packet is play according to the current playback progress information of reference device, thus realizing and reference playback equipment
Synchronous broadcasting multi-medium data, for prior art, can improve and play many matchmakers between multimedia play equipment
The synchronicity of body.
It should be noted that one of ordinary skill in the art will appreciate that whole in the various methods of above-described embodiment or
Part steps can be by program to complete come the hardware to instruct correlation, and this program can be stored in computer-readable storage medium
In matter, storage medium may include that read only memory (rom, read only memory), random access memory (ram,
Random access memory), disk or CD etc..
A kind of playing multimedia synchronous broadcast method, device, system and the terminal that above the embodiment of the present invention are provided are entered
Go and be discussed in detail, specific case used herein has been set forth to the principle of the present invention and embodiment, above enforcement
The explanation of example is only intended to help and understands the method for the present invention and its core concept；Simultaneously for those skilled in the art, according to
According to the thought of the present invention, all will change in specific embodiments and applications, in sum, this specification content
Should not be construed as limitation of the present invention.
Claims (12)
1. a kind of multimedia synchronous play method it is characterised in that including:
Play the media data packet of caching；
Whether detecting system clock is synchronous with the system clock with reference to playback equipment；
If it is not, then obtaining the described playback progress information current with reference to playback equipment；
According to described playback progress information from the media data packet of caching, determine the targeted media data being currently needed for playing
Bag, and play described targeted media data bag.
2. multimedia synchronous as claimed in claim 1 play method it is characterised in that described detecting system clock is broadcast with reference
Whether the system clock putting equipment is synchronous, comprising:
Obtain system clock and with reference to the time error between the system clock of playback equipment；
Judge whether described time error is more than predetermined threshold value；
If more than predetermined threshold value it is determined that system clock is asynchronous with the system clock with reference to playback equipment；
If no more than predetermined threshold value is it is determined that system clock is synchronous with the system clock with reference to playback equipment.
3. multimedia synchronous as claimed in claim 1 play method it is characterised in that described playback progress information includes: institute
State the mark with reference to the currently playing media data packet of playback equipment；
Described according to described playback progress information from caching media data packet, determine be currently needed for play target medium number
According to bag, comprising:
Determine from the media data packet of caching and the corresponding media data packet of described mark, and will be with the corresponding matchmaker of described mark
Volume data bag is as the targeted media data bag being currently needed for broadcasting.
4. multimedia synchronous as described in any one of claim 1-3 play method it is characterised in that detecting system clock with
With reference to the system clock whether before synchronization of playback equipment, described multimedia synchronous play method, also include:
Obtain the quantity of the media data packet of current cache；
Judge whether described quantity is more than predetermined number；
If so, the then perform detection system clock step whether synchronous with the system clock with reference to playback equipment.
5. multimedia synchronous as claimed in claim 4 play method it is characterised in that the media number of described acquisition current cache
Quantity according to bag, comprising:
The media data packet of current cache is counted, obtains count value；
Obtain the quantity of the media data packet of current cache according to described count value；
Described multimedia synchronous are play method and are also included:
When system clock is synchronous with the system clock of reference playback equipment, described count value is reset.
6. a kind of multimedia synchronous play device it is characterised in that including:
Broadcast unit, for playing the media data packet of caching；
Detector unit, whether synchronous with the system clock with reference to playback equipment for detecting system clock；
Acquiring unit, for when detector unit detecting system clock is asynchronous with the system clock of reference playback equipment, obtaining
The described playback progress information current with reference to playback equipment；
Lock unit, from the media data packet of caching, determines and is currently needed for broadcasting for according to described playback progress information
Targeted media data bag, and play described targeted media data bag.
7. multimedia synchronous as claimed in claim 6 play device it is characterised in that described detector unit includes: error obtains
Take subelement and error judgment subelement；
Described error obtains subelement, for obtaining the time between system clock and the system clock with reference to playback equipment by mistake
Difference；
Described error judgment subelement, for judging whether described time error is more than predetermined threshold value；
If more than predetermined threshold value it is determined that system clock is asynchronous with the system clock with reference to playback equipment；
If no more than predetermined threshold value is it is determined that system clock is synchronous with the system clock with reference to playback equipment.
8. multimedia synchronous as claimed in claim 6 play device it is characterised in that described playback progress information includes: institute
State the mark with reference to the currently playing media data packet of playback equipment；
Described lock unit, specifically for determining from the media data packet of caching and the corresponding media data packet of described mark,
And corresponding media data packet will be identified as the targeted media data bag being currently needed for broadcasting with described.
9. the multimedia synchronous as described in any one of claim 6-8 play device it is characterised in that also including:
Number obtainment unit, in the whether synchronization of detector unit detecting system clock and the system clock with reference to playback equipment
Before, obtain the quantity of the media data packet of current cache；
Quantity judging unit, for judging whether described quantity is more than predetermined number；
Described detector unit, for quantity judging unit judge quantity be more than predetermined number when, perform detection system clock with
With reference to the whether synchronous step of the system clock of playback equipment.
10. multimedia synchronous as claimed in claim 9 play device it is characterised in that also including: count processing unit；
Described number obtainment unit, specifically for: the media data packet of current cache is counted, obtains count value；According to
Described count value obtains the quantity of the media data packet of current cache；
Described counting processing unit, for when detector unit detecting system clock and the system clock synchronization with reference to playback equipment
When, described count value is reset.
A kind of 11. terminals are it is characterised in that include:
Be stored with the memorizer of executable program code；
The processor coupling with described memorizer；
Described processor calls the described executable program code of storage in described memorizer, and execution such as claim 1 is to right
Require the method described in 5 any one.
A kind of 12. multimedia synchronous Play Systems are it is characterised in that include: control device and at least one playback equipment；Described
Control device is connected with described playback equipment；Described playback equipment is used for execution if claim 1 is to any one of claim 5 institute
The method stated.
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| CN111147906A (en) * | 2018-11-02 | 2020-05-12 | 纬创资通股份有限公司 | Synchronous playing system and synchronous playing method |
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| CN115314744A (en) * | 2022-07-01 | 2022-11-08 | 深圳市丝路蓝创意展示有限公司 | Synchronous playing method, device, equipment and storage medium |
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| CN112637658A (en) * | 2020-03-17 | 2021-04-09 | 西安诺瓦星云科技股份有限公司 | Media playing control method, device and system and multi-terminal synchronous playing system |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: OPPO Guangdong Mobile Communications Co., Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: Guangdong Opel Mobile Communications Co., Ltd. |