CN106411449B - Control method for playing back, device and terminal - Google Patents
Control method for playing back, device and terminal Download PDFInfo
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- CN106411449B CN106411449B CN201610882909.3A CN201610882909A CN106411449B CN 106411449 B CN106411449 B CN 106411449B CN 201610882909 A CN201610882909 A CN 201610882909A CN 106411449 B CN106411449 B CN 106411449B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0658—Clock or time synchronisation among packet nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72442—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for playing music files
Abstract
The embodiment of the invention provides a kind of control method for playing back, device and terminal, this method, which uses, receives the information that finishes playing that playback equipment is sent with predetermined period；According to the clocking error of the finish playing acquisition of information and the playback equipment；It is whether synchronous with the system clock of the playback equipment according to clocking error judgement, to obtain judging result；Corresponding period modulation order is sent to the playback equipment according to the judgment result, so that the playback equipment adjusts the predetermined period according to the period modulation order.Whether the program synchronizes period modulation order corresponding to playback equipment transmission according to playback equipment, and playback equipment adjusts predetermined period according to the period modulation order.When there are multiple playback equipments, the traffic between broadcast control device and multiple playback equipments can reduce, improve the stability of play system.
Description
Technical field
The present invention relates to technical field of electronic equipment, and in particular to a kind of control method for playing back, device and terminal.
Background technique
With the improvement of living standards, audio-visual devices play important role in people's lives.It currently, will be multiple
Music player devices (for example, speaker, player, mobile phone etc.) and control equipment are interconnected by wired or wireless network,
A play system is formed, identical music is played simultaneously, has been widely used.
In above-mentioned play system, each equipment has independent system clock.Each playback equipment according to its own
System clock plays music.However, the system clock of each playback equipment is not always synchronous.Between each playback equipment
Be sometimes it is synchronous, sometimes there may be the subtle time differences.It is above-mentioned thin when multiple playback equipments play identical music
Micro- time difference causes the playback progress of each playback equipment inconsistent, thereby results in the output sound quality decline of entire play system.
In order to improve the output sound quality of play system, need to the system clock of each playback equipment in play system into
Row monitoring and adjustment, so that the system clock of multiple playback equipments keeps synchronizing.However, continually to multiple playback equipments
System clock is monitored and adjusts, cause control equipment and playback equipment between the traffic increase, cause control equipment with
Network blockage between playback equipment, thus the stability of play system is caused to reduce, it needs to improve.
Summary of the invention
The embodiment of the present invention provides a kind of control method for playing back, device and terminal, and the stability of play system can be improved.
The embodiment of the present invention provides a kind of control method for playing back, comprising:
Receive the information that finishes playing that playback equipment is sent with predetermined period；
According to the clocking error of the finish playing acquisition of information and the playback equipment；
It is whether synchronous with the system clock of the playback equipment according to clocking error judgement, to obtain judging result；
Send corresponding period modulation order to the playback equipment according to the judgment result so that the playback equipment according to
The period modulation order adjusts the predetermined period.
Correspondingly, the embodiment of the present invention also provides a kind of broadcast control device, comprising:
Receiving module, the information that finishes playing sent for receiving playback equipment with predetermined period；
Module is obtained, for the clocking error according to the finish playing acquisition of information and the playback equipment；
Judgment module, it is whether synchronous with the system clock of the playback equipment for being judged according to the clocking error, to obtain
Judging result；
Sending module, for sending corresponding period modulation order to the playback equipment according to the judgment result, so that
The playback equipment adjusts the predetermined period according to the period modulation order.
Correspondingly, the embodiment of the present invention also provides a kind of terminal, comprising:
Touch screen, for receiving the touch operation of user；
It is stored with the memory of executable program code；
The processor coupled with the memory；
The processor calls the executable program code stored in the memory, executes above-mentioned control method for playing back.
The embodiment of the present invention, which uses, receives the information that finishes playing that playback equipment is sent with predetermined period；It is played according to this
At the clocking error of acquisition of information and the playback equipment；Judged according to the clocking error and whether the system clock of the playback equipment
It is synchronous, to obtain judging result；Corresponding period modulation order is sent to the playback equipment according to the judgment result, so that should
Playback equipment adjusts the predetermined period according to the period modulation order.The program according to the judgement of the clocking error of playback equipment with
Whether the playback equipment synchronizes, and sends corresponding period modulation order, playback equipment root to the playback equipment according to judging result
The predetermined period is adjusted according to the period modulation order.When there are multiple playback equipments, broadcast control device only needs and minority
Or individual big playback equipments of clocking error frequently communicate, and frequently lead to without the playback equipment small with other clocking errors
Letter, can reduce the traffic between broadcast control device and multiple playback equipments, it is thus possible to well solve due to playing
The big caused network blockage of the traffic between control device and multiple playback equipments, can be improved the stabilization of play system
Property.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described.It should be evident that drawings in the following description are only some embodiments of the invention, for
For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the flow diagram for the control method for playing back that the embodiment of the present invention one provides.
Fig. 2 is the composition schematic diagram of the play system in the embodiment of the present invention two.
Fig. 3 is the flow diagram of control method for playing back provided by Embodiment 2 of the present invention.
Fig. 4 is the structural schematic diagram for the first broadcast control device that the embodiment of the present invention three provides.
Fig. 5 is the structural schematic diagram for second of broadcast control device that the embodiment of the present invention three provides.
Fig. 6 is the structural schematic diagram for the third broadcast control device that the embodiment of the present invention three provides.
Fig. 7 is the structural schematic diagram for the 4th kind of broadcast control device that the embodiment of the present invention three provides.
Fig. 8 is the structural schematic diagram for the first terminal that the embodiment of the present invention four provides.
Fig. 9 is the structural schematic diagram for second of terminal that the embodiment of the present invention four provides.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those skilled in the art's every other implementation obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
Description and claims of this specification and term " first " in above-mentioned attached drawing, " second ", " third " etc.
(if present) is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be appreciated that this
The object of sample description is interchangeable under appropriate circumstances.In addition, term " includes " and " having " and their any deformation, meaning
Figure, which is to cover, non-exclusive includes.For example, containing the process, method of series of steps or containing a series of modules or list
The device of member, terminal, system those of are not necessarily limited to be clearly listed step or module or unit, can also include unclear
The step of ground is listed or module or unit also may include its intrinsic for these process, methods, device, terminal or system
Its step or module or unit.
The embodiment of the present invention provides a kind of control method for playing back, device and terminal, will be described in detail respectively below.
Embodiment one
The present embodiment will be described from the angle of broadcast control device, which specifically can integrate in the terminal, should
Terminal can be the equipment such as smart phone, tablet computer.
A kind of control method for playing back, comprising: receive the information that finishes playing that playback equipment is sent with predetermined period；According to this
Finish playing the clocking error of acquisition of information and the playback equipment；When according to clocking error judgement and the system of the playback equipment
Whether clock synchronizes, to obtain judging result；Corresponding period modulation order is sent to the playback equipment according to the judgment result, with
So that the playback equipment adjusts the predetermined period according to the period modulation order.
As shown in Figure 1, the control method for playing back, detailed process may include:
S101 receives the information that finishes playing that playback equipment is sent with predetermined period.
In concrete application, playback equipment can be the equipment that speaker, music player etc. have audio playing function.This is broadcast
The information that finishes playing can be sent to broadcast control device with some cycles by putting equipment.The information that finishes playing indicates that the broadcasting is set
It is standby to have played a certain number of packets of audio data.For example, playback equipment can be sent once with every 10 seconds to broadcast control device
Finish playing information, which indicates that the playback equipment played a certain number of data packets in this 10 seconds,
The predetermined period is 10 seconds at this time.
In some embodiments, receive playback equipment with the information that finishes playing that predetermined period is sent can specifically include with
Lower step:
The packets of audio data with predetermined time period is sent to playback equipment；
The information that finishes playing of playback equipment transmission is received, which plays default for the playback equipment
The information sent after the packets of audio data of quantity.
In practical application, broadcast control device can transfer the original sound being stored in the memory of the broadcast control device
Frequency evidence.Broadcast control device can also obtain original audio number by wired or wireless network from server or other terminals
According to.Broadcast control device can also obtain original audio data from the storage mediums such as CD.The original audio data include but
It is not limited to CD, WAV, MP3 (Moving Picture Experts Group Audio Layer III), WMA (Windows
Media Audio) etc. formats audio data.
After getting original audio data, broadcast control device can be split into the original audio data when having default
Between length multiple packets of audio data.It is long that predetermined time period can be the time being arranged when broadcast control device factory
Angle value.The predetermined time period is the duration consumed required for playing the packets of audio data.For example, predetermined time period is 500
Millisecond.When splitting into multiple packets of audio data, broadcast control device can be added in each packets of audio data split out and broadcast
Put the play time of the packets of audio data.The play time can be according to determined by the system clock of the broadcast control device
One time point not yet reached.Meanwhile broadcast control device can carry out continuously the multiple packets of audio data splitted out
Number, is added the serial number of the packets of audio data in each packets of audio data.After the completion of fractionation, broadcast control device is set to broadcasting
Preparation gives the packets of audio data that this is splitted out.
After playback equipment receives the packets of audio data of broadcast control device transmission, arrived in the system clock of the playback equipment
When up to the play time, the packets of audio data is played.After the playback equipment plays the packets of audio data of preset quantity, broadcast to this
It puts control device and sends the information that finishes playing.The preset quantity can be a numerical value being set in advance in the playback equipment.
For example, preset quantity can be 5.After then playback equipment often plays 5 packets of audio data, broadcast to broadcast control device transmission
Discharge into information.Broadcast control device receives the information that finishes playing of playback equipment transmission.
S102, according to the clocking error of the finish playing acquisition of information and the playback equipment.
Specifically, it after broadcast control device receives the information that finishes playing that playback equipment is sent, is finished playing according to this
The clocking error of acquisition of information and the playback equipment.The clocking error is that the system clock of the broadcast control device is set with the broadcasting
Error between standby system clock.
In some embodiments, it can specifically be wrapped according to the clocking error for finishing playing acquisition of information and the playback equipment
Include following steps:
The audio number that the playback equipment plays the preset quantity is calculated according to the play time and the predetermined time period
According to the theoretical deadline of packet；
The reality for the packets of audio data that the preset quantity is played according to the acquisition of information playback equipment of finishing playing is complete
At the time；
The clocking error with the playback equipment is obtained according to the theory deadline and the actual finish time.
Specifically, it may include played audio that playback equipment, which is sent in the information that finishes playing of broadcast control device,
The serial number of data packet.For example, being sent to broadcasting control dress after playback equipment plays 5 packets of audio data of serial number 1 to 5
It include packets of audio data serial number 1 to 5 in the information that finishes playing set.Wherein, packets of audio data serial number is bigger, indicates the audio
The play time of data packet is more late.
Broadcast control device receives finish playing information after, according to the packets of audio data for including in the information that finishes playing
Serial number determine the packets of audio data of play time the latest.Then, according to the play time of the packets of audio data and this
Predetermined time period calculates the theoretical deadline that the playback equipment plays the packets of audio data of the preset quantity.For example, broadcasting
The serial number 1 to 5 for 5 packets of audio data that equipment played is put, then can determine packets of audio data 5 for play time most
Evening.Then, the play time of packets of audio data 5 is added into the predetermined time period as the theoretical deadline.For example, audio
At the time of the play time of data packet 5 corresponds to for 1 point 10 seconds, predetermined time period be 500 milliseconds, then the theory deadline be
1 point 10.5 seconds.
The broadcast control device can receive this finish playing information when, record receive the information that finishes playing
Time.Due to being communicated between broadcast control device and playback equipment by cable network or wireless network, feedback information with
Electric signal (voltage or electric current) or the form of electromagnetic wave are transmitted.And the transmission speed of electric signal and electromagnetic wave is quickly, telecommunications
Number or passing time of the electromagnetic wave between broadcast control device and playback equipment can be ignored.It is therefore contemplated that should
The time that broadcast control device receives the information that finishes playing is audio number that the playback equipment plays the preset quantity
According to the actual finish time of packet.
It is then possible to calculate the clocking error with the playback equipment according to the following formula:
t0=t1-t2
Wherein, t0For the clocking error that need to be calculated, t1For the theory deadline, t2For the actual finish time.Work as clock
Error t0For positive value, i.e., when the theoretical deadline is ahead of actual finish time, indicate the system clock of playback equipment than playing
The system clock of control device is slow；As clocking error t0For negative value, i.e., the theoretical deadline is delayed when actual finish time, table
Show that the system clock of playback equipment is faster than the system clock of broadcast control device；As clocking error t0When being 0, playback equipment is indicated
System clock it is identical as the system clock of broadcast control device, i.e., there is no clock mistake between playback equipment and broadcast control device
Difference.
S103, it is whether synchronous with the system clock of the playback equipment according to clocking error judgement, to obtain judging result.
In practical application, when the clocking error very little of broadcast control device and playback equipment, the clocking error is for people
The sense of hearing for can not perceive.At this time, it is believed that be synchronous between broadcast control device and playback equipment.Conversely, working as
When the sense of hearing of people can perceive the clocking error, it is believed that be asynchronous between the broadcast control device and the playback equipment
's.
In some embodiments, whether synchronous with the system clock of the playback equipment according to clocking error judgement, with
To judging result, can with specifically includes the following steps:
Judge whether the absolute value of the clocking error is less than preset threshold；
If so, obtained judging result is synchronous with the system clock of the playback equipment；
If it is not, the judging result then obtained is asynchronous with the system clock of the playback equipment.
Specifically, preset threshold can be a clocking error numerical value being set in advance in broadcast control device.The mistake
Difference value can indicate the human ear institute perceived minimum time difference.For example, preset threshold is 20 milliseconds.Broadcast control device obtains
To after the clocking error with playback equipment, judge whether the absolute value of the clocking error is less than the preset threshold.If so, obtaining
Judging result be with the system clock of the playback equipment be synchronous；If it is not, the judging result then obtained is to set with the broadcasting
Standby system clock is nonsynchronous.
S104 sends corresponding period modulation order to the playback equipment according to the judgment result, so that the broadcasting is set
It is standby that the predetermined period is adjusted according to the period modulation order.
In concrete application, after broadcast control device obtains the synchronous judging result between playback equipment, according to the judgement
As a result corresponding period modulation order is sent to the playback equipment.The period modulation order can be period increase order, can also
To be to reduce order in the period.After playback equipment receives the period modulation order, according to the period modulation order to own system
Clock carries out corresponding adjustment.
In some embodiments, corresponding period modulation order is sent to the playback equipment according to the judgment result, so that
The playback equipment according to the period modulation order adjusts the predetermined period, can with specifically includes the following steps:
When the judging result is synchronous with the system clock of the playback equipment, ordered to playback equipment sending cycle increase
It enables, so that the playback equipment increases the predetermined period；
When the judging result is asynchronous with the system clock of the playback equipment, reduce to the playback equipment sending cycle
Order, so that the playback equipment reduces the predetermined period.
Specifically, that be with the system clock of the playback equipment be the judging result obtained in the S103 is synchronous, then plays
Control device is ordered to playback equipment sending cycle increase.After the playback equipment receives period increase order, increasing should
Predetermined period.For example, the predetermined period can be increased to 8 when predetermined period duration corresponding for 5 packets of audio data
The corresponding duration of packets of audio data.
The judging result obtained in the S103 is with the system clock of the playback equipment be it is nonsynchronous, then play control dress
It sets to reduce to the playback equipment sending cycle and order.After the playback equipment receives period reduction order, reduce the default week
Phase.For example, the predetermined period can be reduced to 2 audio numbers when predetermined period duration corresponding for 5 packets of audio data
According to the corresponding duration of packet.
When broadcast control device controls multiple playback equipments, each playback equipment can be controlled according to itself with the broadcasting
The clocking error situation dynamic of device adjusts the predetermined period that the information that finishes playing is sent to the broadcast control device.Play control
Device only needs continually to be communicated with a small number of or individual big playback equipments of clocking error, does not need and other clocking errors
Small playback equipment is continually communicated.Therefore, the communication between broadcast control device and multiple playback equipments can be reduced
Amount, it is thus possible to well solve due to the traffic between broadcast control device and multiple playback equipments it is big caused by network
Blocking, can be improved the stability of play system.
When it is implemented, the present invention is not limited by the execution sequence of described each step, conflict is not being generated
In the case of, certain steps can also be carried out using other sequences or be carried out simultaneously.
From the foregoing, it will be observed that control method for playing back provided in an embodiment of the present invention, uses reception playback equipment to send out with predetermined period
The information that finishes playing sent；According to the clocking error of the finish playing acquisition of information and the playback equipment；According to the clocking error
Whether judgement is synchronous with the system clock of the playback equipment, to obtain judging result；According to the judgment result to the playback equipment
Corresponding period modulation order is sent, so that the playback equipment adjusts the predetermined period according to the period modulation order.The party
Whether case is synchronous with the playback equipment according to judging with the clocking error of playback equipment, is sent out according to judging result to the playback equipment
Corresponding period modulation order is sent, playback equipment adjusts the predetermined period according to the period modulation order.When there are multiple broadcastings
When equipment, broadcast control device only needs frequently to communicate with a small number of or individual big playback equipments of clocking error, without with
The small playback equipment of other clocking errors frequently communicates, and can reduce the communication between broadcast control device and multiple playback equipments
Amount, it is thus possible to well solve due to the traffic between broadcast control device and multiple playback equipments it is big caused by network
Blocking, can be improved the stability of play system.
Embodiment two
According to control method for playing back described in embodiment one, citing is described in further detail below.
In the present embodiment, it will be specifically integrated in smart phone with broadcast control device, and be based on broadcasting shown in Fig. 2
The control method for playing back of the present embodiment is described in detail in system.
As shown in Fig. 2, for the composition schematic diagram of one of the present embodiment play system.Play system by server 211,
Smart phone 212 and multiple playback equipments 213 form.Server 211 can be the server on network.Playback equipment
213 can be the equipment that speaker, music player etc. have audio playing function.Smart phone 212 passes through internet and service
Device 211 carries out data communication, so that smart phone 212 can obtain audio data from server 211.Meanwhile smart phone
212 carry out data communication by wireless network (such as WiFi) and multiple playback equipments 213, so that smart phone 212 can be with
Packets of audio data is sent to playback equipment 213.
As shown in figure 3, control method for playing back, detailed process be can be such that
S201 sends the packets of audio data with predetermined time period to playback equipment.
In concrete application, smart phone obtains original audio data from server by internet, then by the original sound
Frequency evidence splits into multiple packets of audio data with predetermined time period.The original audio data include but is not limited to CD,
WAV、MP3(Moving Picture Experts Group Audio Layer III)、WMA(Windows Media
The audio data of formats such as Audio).Predetermined time period can be a time span being arranged when smart phone factory
Value.The predetermined time period is the duration consumed required for playing the packets of audio data.For example, predetermined time period is 500 millis
Second.When splitting into multiple packets of audio data, smart phone can be added in each packets of audio data split out plays the sound
The play time of frequency data packet.The play time can be according to determined by the system clock of the smart phone one and not yet arrive
The time point reached.Meanwhile smart phone can carry out serial number to the multiple packets of audio data splitted out, in each audio
The serial number of the packets of audio data is added in data packet.After the completion of fractionation, smart phone sends what this was splitted out to playback equipment
Packets of audio data.
S202 receives the information that finishes playing of playback equipment transmission, and the information that finishes playing is playback equipment broadcasting
The information sent after the packets of audio data of complete preset quantity.
Specifically, after playback equipment receives the packets of audio data that smart phone is sent, in the system of the playback equipment
When clock reaches the play time, the packets of audio data is played.After the playback equipment plays the packets of audio data of preset quantity, to
The smart phone sends the information that finishes playing.The preset quantity can be a numerical value being set in advance in the playback equipment.
For example, preset quantity can be 5.After then playback equipment often plays 5 packets of audio data, played to smart phone transmission
At information.The information that finishes playing indicates that the playback equipment played a certain number of packets of audio data.The letter that finishes playing
It may include the serial number for the packets of audio data that played in breath.Smart phone receives the letter that finishes playing of playback equipment transmission
Breath.
S203 calculates the playback equipment according to the play time of the packets of audio data and the predetermined time period and plays this
The theoretical deadline of the packets of audio data of preset quantity.
In concrete application, packets of audio data serial number is bigger, indicates that the play time of the packets of audio data is more late.Smart phone
It receives after finishing playing information, play time is determined according to the serial number for the packets of audio data for including in the information that finishes playing
A packets of audio data the latest.Then, this is calculated according to the play time of the packets of audio data and the predetermined time period to broadcast
Put the theoretical deadline of the packets of audio data of the complete preset quantity of device plays.For example, 5 sounds that playback equipment played
The serial number 1 to 5 of frequency data packet, then can determine packets of audio data 5 be play time the latest.Then, by audio data
The play time of packet 5 is plus the predetermined time period as the theoretical deadline.For example, the play time pair of packets of audio data 5
At the time of answering for 1 point 10 seconds, predetermined time period be 500 milliseconds, then the theory deadline for 1 point 10.5 seconds.
S204 plays the reality of the packets of audio data of the preset quantity according to the acquisition of information playback equipment of finishing playing
The border deadline.
Specifically, smart phone can receive this finish playing information when, record receive the information that finishes playing
Time.The time for receiving the information that finishes playing is packets of audio data that the playback equipment plays the preset quantity
Actual finish time.
S205 obtains the clocking error with the playback equipment according to the theory deadline and the actual finish time.
Specifically, smart phone can calculate the clocking error with the playback equipment according to the following formula:
t0=t1-t2
Wherein, t0For the clocking error that need to be calculated, t1For the theory deadline, t2For the actual finish time.Work as clock
Error t0For positive value, i.e., when the theoretical deadline is ahead of actual finish time, indicate the system clock of playback equipment than intelligence
The system clock of mobile phone is slow；As clocking error t0For negative value, i.e., the theoretical deadline is delayed when actual finish time, indicates to broadcast
The system clock for putting equipment is faster than the system clock of smart phone；As clocking error t0When being 0, when indicating the system of playback equipment
Clock is identical as the system clock of smart phone, i.e., does not have clocking error between playback equipment and smart phone.
S206, judges whether the absolute value of the clocking error is less than preset threshold.
Specifically, preset threshold can be a clocking error numerical value being set in advance in smart phone.The margin of error
Value can indicate the human ear institute perceived minimum time difference.For example, preset threshold is 20 milliseconds.Smart phone gets and plays
After the clocking error of equipment, judge whether the absolute value of the clocking error is less than the preset threshold.When the judgment is yes, step is executed
Rapid S207；When the judgment is no, step S209 is executed.
S207, if so, obtained judging result is synchronous with the system clock of the playback equipment.
Specifically, when the absolute value for judging the clocking error in S206 is less than preset threshold, obtained judging result
It with the system clock of the playback equipment is synchronous for smart phone.For example, clocking error is 10 milliseconds, then it may determine that this
The absolute value that 10 milliseconds of clocking error is less than 20 milliseconds of the preset threshold.The judging result obtained at this time is that smart phone is broadcast with this
It is synchronous for putting the system clock of equipment.
S208 is ordered to playback equipment sending cycle increase, so that the playback equipment increases the predetermined period.
Specifically, it when smart phone is synchronous with playback equipment, is ordered to playback equipment sending cycle increase.Playback equipment
After receiving period increase order, increase the predetermined period.For example, when predetermined period is that 5 packets of audio data are corresponding
When long, which can be increased to the corresponding duration of 8 packets of audio data.
S209, if it is not, the judging result then obtained is asynchronous with the system clock of the playback equipment.
Specifically, when judging the absolute value of the clocking error in S206 not less than preset threshold, obtained judgement knot
Fruit is nonsynchronous for the system clock of smart phone and the playback equipment.For example, clocking error is -30 milliseconds, then can sentence
The absolute value of disconnected -30 milliseconds of clocking error out is not less than 20 milliseconds of the preset threshold.The judging result obtained at this time is intelligence
The system clock of mobile phone and the playback equipment is nonsynchronous.
S210 reduces to the playback equipment sending cycle and orders, so that the playback equipment reduces the predetermined period.
Specifically, when smart phone is asynchronous with playback equipment, reduces to the playback equipment sending cycle and order.Broadcasting is set
After receiving period reduction order, reduce the predetermined period.For example, when predetermined period is that 5 packets of audio data are corresponding
When duration, which can be reduced to the corresponding duration of 2 packets of audio data.
When it is implemented, the present invention is not limited by the execution sequence of described each step, conflict is not being generated
In the case of, certain steps can also be carried out using other sequences or be carried out simultaneously.
From the foregoing, it will be observed that control method for playing back provided in an embodiment of the present invention, is played using smart phone by playback equipment
The theoretical deadline of complete preset quantity packets of audio data and actual finish time obtain the clocking error with the playback equipment；Root
Judge according to the clocking error whether synchronous with the playback equipment；Corresponding period tune is sent to the playback equipment according to judging result
Whole order, playback equipment adjust the predetermined period according to the period modulation order.When there are multiple playback equipments, smart phone
It only needs frequently to communicate with a small number of or individual big playback equipments of clocking error, without the broadcasting small with other clocking errors
Equipment frequently communicates, and can reduce the traffic between smart phone and multiple playback equipments, it is thus possible to well solve by
The big caused network blockage of the traffic between smart phone and multiple playback equipments, can be improved the stabilization of play system
Property.
Embodiment three
In order to better implement above method, the embodiment of the present invention also provides a kind of broadcast control device, which can be with
It integrates in the terminal, which can be the equipment such as smart phone, tablet computer.
As shown in figure 4, broadcast control device 300 may include: receiving module 301, obtain module 302, judgment module
303, sending module 304 are described in detail below:
The receiving module 301, the information that finishes playing sent for receiving playback equipment with predetermined period；
The acquisition module 302, for the clocking error according to the finish playing acquisition of information and the playback equipment；
The judgment module 303, it is whether synchronous with the system clock of the playback equipment for being judged according to the clocking error, with
Obtain judging result；
The sending module 304, for sending corresponding period modulation order to the playback equipment according to the judgment result, with
So that the playback equipment adjusts the predetermined period according to the period modulation order.
Preferably, which is specifically used for:
Judge whether the absolute value of the clocking error is less than preset threshold；
If so, obtained judging result is synchronous with the system clock of the playback equipment；
If it is not, the judging result then obtained is asynchronous with the system clock of the playback equipment.
Preferably, as shown in figure 5, the sending module 304 includes: the first sending submodule 3041, the second sending submodule
3042, specific as follows:
First sending submodule 3041, for when the judging result be it is synchronous with the system clock of the playback equipment when,
It is ordered to playback equipment sending cycle increase, so that the playback equipment increases the predetermined period；
Second sending submodule 3042, for being asynchronous with the system clock of the playback equipment when the judging result
When, reduce to the playback equipment sending cycle and order, so that the playback equipment reduces the predetermined period.
Preferably, as shown in fig. 6, the receiving module 301 includes: data sending submodule 3011, receiving submodule 3012,
It is specific as follows:
The data sending submodule 3011, for sending the packets of audio data with predetermined time period to playback equipment；
The receiving submodule 3012, for receiving the information that finishes playing of playback equipment transmission, the information that finishes playing
The information sent after the packets of audio data of preset quantity is played for the playback equipment.
It preferably, include the play time of the packets of audio data in the packets of audio data, as shown in fig. 7, the acquisition module
302 include: computational submodule 3021, the first acquisition submodule 3022, the second acquisition submodule 3023, specific as follows:
The computational submodule 3021 is played for calculating the playback equipment according to the play time and the predetermined time period
The theoretical deadline of the packets of audio data of the complete preset quantity；
First acquisition submodule 3022, it is default for playing this according to the acquisition of information playback equipment of finishing playing
The actual finish time of the packets of audio data of quantity；
Second acquisition submodule 3023 is broadcast for being obtained according to the theory deadline and the actual finish time with this
Put the clocking error of equipment.
When it is implemented, the above modules can be used as independent entity to realize, any combination can also be carried out, is made
It is realized for same or several entities.The specific implementation of the above modules can be found in the embodiment of the method for front, herein not
It repeats again.
From the foregoing, it will be observed that broadcast control device 300 provided in an embodiment of the present invention, receives broadcasting by receiving module 301 and sets
The standby information that finishes playing sent with predetermined period；Module 302 is obtained according to finish playing acquisition of information and the playback equipment
Clocking error；Whether judgment module 303 is synchronous with the system clock of the playback equipment according to clocking error judgement, to obtain
Judging result；Sending module 304 sends corresponding period modulation order to the playback equipment according to the judgment result, so that should
Playback equipment adjusts the predetermined period according to the period modulation order.The program according to the judgement of the clocking error of playback equipment with
Whether the playback equipment synchronizes, and sends corresponding period modulation order, playback equipment root to the playback equipment according to judging result
The predetermined period is adjusted according to the period modulation order.When there are multiple playback equipments, broadcast control device only needs and minority
Or individual big playback equipments of clocking error frequently communicate, and frequently lead to without the playback equipment small with other clocking errors
Letter, can reduce the traffic between broadcast control device and multiple playback equipments, it is thus possible to well solve due to playing
The big caused network blockage of the traffic between control device and multiple playback equipments, can be improved the stabilization of play system
Property.
Example IV
The embodiment of the present invention also provides a kind of terminal, which can be the equipment such as smart phone, tablet computer.
As shown in figure 8, terminal 400 may include: receiving module 401, obtain module 402, judgment module 403, send mould
Block 404, is described in detail below:
The receiving module 401, the information that finishes playing sent for receiving playback equipment with predetermined period；
The acquisition module 402, for the clocking error according to the finish playing acquisition of information and the playback equipment；
The judgment module 403, it is whether synchronous with the system clock of the playback equipment for being judged according to the clocking error, with
Obtain judging result；
The sending module 404, for sending corresponding period modulation order to the playback equipment according to the judgment result, with
So that the playback equipment adjusts the predetermined period according to the period modulation order.
Preferably, which is specifically used for:
Judge whether the absolute value of the clocking error is less than preset threshold；
If so, obtained judging result is synchronous with the system clock of the playback equipment；
If it is not, the judging result then obtained is asynchronous with the system clock of the playback equipment.
Preferably, which includes: the first sending submodule, the second sending submodule, specific as follows:
First sending submodule, for when the judging result be it is synchronous with the system clock of the playback equipment when, to this
Playback equipment sending cycle increase order, so that the playback equipment increases the predetermined period；
Second sending submodule, for when the judging result be it is asynchronous with the system clock of the playback equipment when, to
The playback equipment sending cycle reduces order, so that the playback equipment reduces the predetermined period.
Preferably, which includes: data sending submodule, receiving submodule, specific as follows:
The data sending submodule, for sending the packets of audio data with predetermined time period to playback equipment；
The receiving submodule, for receiving the information that finishes playing of playback equipment transmission, which is should
Playback equipment plays the information sent after the packets of audio data of preset quantity.
It preferably, include the play time of the packets of audio data in the packets of audio data, which includes: meter
Operator module, the first acquisition submodule, the second acquisition submodule, specific as follows:
The computational submodule plays this for calculating the playback equipment according to the play time and the predetermined time period
The theoretical deadline of the packets of audio data of preset quantity；
First acquisition submodule, for playing the preset quantity according to the acquisition of information playback equipment of finishing playing
Packets of audio data actual finish time；
Second acquisition submodule is set for being obtained according to the theory deadline and the actual finish time with the broadcasting
Standby clocking error.
Aforesaid operations are for details, reference can be made to the embodiment of the method for front, and details are not described herein.
The embodiment of the present invention also provides another terminal, as shown in figure 9, the terminal 500 may include radio frequency (RF, Radio
Frequency) circuit 501, include one or more memory 502, the input unit of computer readable storage medium
503, display unit 504, sensor 505, voicefrequency circuit 506, Wireless Fidelity (WiFi, Wireless Fidelity) module
507, the components such as processor 508 and the power supply 509 of processing core are included one or more than one.Those skilled in the art
Member it is appreciated that terminal structure not structure paired terminal shown in Fig. 9 restriction, may include more more or fewer than illustrating
Component perhaps combines certain components or different component layouts.
Radio circuit 501 can be used for receiving and sending messages or communication process in signal send and receive, particularly, by base station
Downlink information receive after, transfer to one or more than one processor 508 processing；In addition, the data for being related to uplink are sent
To base station.In general, radio circuit 501 includes but is not limited to antenna, at least one amplifier, tuner, one or more oscillations
Device, subscriber identity module (SIM, Subscriber Identity Module) card, transceiver, coupler, low noise amplification
Device (LNA, Low Noise Amplifier), duplexer etc..In addition, radio circuit 501 can also by wireless communication with network
It is communicated with other equipment.Any communication standard or agreement, including but not limited to global system for mobile telecommunications can be used in the wireless communication
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 it is more
Location (WCDMA, Wideband Code Division Multiple Access), long term evolution (LTE, Long Term
Evolution), Email, short message service (SMS, Short Messaging Service) etc..
Memory 502 can be used for storing application program and data.It include that can hold in the application program that memory 502 stores
Line program code.Application program can form various functional modules.Processor 508 is stored in answering for memory 502 by operation
With program, thereby executing various function application and data processing.Memory 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 (for example sound plays function
Energy, image player function etc.) etc.；Storage data area can store according to terminal use created data (such as audio data,
Phone directory etc.) etc..In addition, memory 502 may include high-speed random access memory, it can also include non-volatile memories
Device, for example, at least a disk memory, flush memory device or other volatile solid-state parts.Correspondingly, memory
502 can also include Memory Controller, to provide the access of processor 508 and input unit 503 to memory 502.
Input unit 503 can be used for receiving number, character information or the user's characteristic information (such as fingerprint) of input, and
Generate keyboard related with user setting and function control, mouse, operating stick, optics or trackball signal input.Specifically
Ground, input unit 503 may include fingerprint recognition mould group.In some embodiments, input unit 503 can also include touch-sensitive table
Face.Touch sensitive surface, also referred to as touch screen or Trackpad collect touch operation (such as the user of user on it or nearby
Use the operation of any suitable object or attachment such as finger, stylus on touch sensitive surface or near touch sensitive surface), and according to
Preset formula drives corresponding attachment device.Optionally, touch sensitive surface may include touch detecting apparatus and touch control
Two parts of device.Wherein, the touch orientation of touch detecting apparatus detection user, and touch operation bring signal is detected, it will believe
Number send touch controller to；Touch controller receives touch information from touch detecting apparatus, and is converted into contact seat
Mark, then gives processor 508, and can receive order that processor 508 is sent and be executed.Furthermore, it is possible to using resistance-type,
The multiple types such as condenser type, infrared ray and surface acoustic wave realize touch sensitive surface.In addition to touch sensitive surface, input unit 503 may be used also
To include other input equipments.Specifically, other input equipments can include but is not limited to physical keyboard, function key (such as sound
Measure control button, switch key etc.), trace ball, mouse, one of operating stick etc. or a variety of.
Display unit 504 can be used for showing information input by user or be supplied to user information and terminal it is various
Graphical user interface, these graphical user interface can be made of figure, text, icon, video and any combination thereof.Display
Unit 504 may include display panel.Optionally, can using liquid crystal display (LCD, Liquid Crystal Display),
The forms such as Organic Light Emitting Diode (OLED, Organic Light-Emitting Diode) configure display panel.Further
, touch sensitive surface can cover display panel, after touch sensitive surface detects touch operation on it or nearby, send processing to
Device 508 is followed by subsequent processing device 508 and is provided on a display panel accordingly according to the type of touch event to determine the type of touch event
Visual output.Although touch sensitive surface and display panel are to realize input and input as two independent components in Fig. 9
Function, but in some embodiments it is possible to touch sensitive surface and display panel are integrated and realizes and outputs and inputs 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 sensor, wherein ambient light sensor can be according to ambient light
Light and shade adjust the brightness of display panel, proximity sensor can close display panel and/or back when terminal is moved in one's ear
Light.As a kind of motion sensor, gravity accelerometer can detect (generally three axis) acceleration in all directions
Size can detect that size and the direction of gravity when static, can be used to identify mobile phone posture application (such as horizontal/vertical screen switching,
Dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap) etc.；It can also configure as terminal
The other sensors such as gyroscope, barometer, hygrometer, thermometer, infrared sensor, details are not described herein.
Voicefrequency circuit 506 can provide the audio interface between user and terminal by loudspeaker, microphone.Voicefrequency circuit
The audio data received can be converted into electric signal by 506, be transferred to loudspeaker, be converted to voice signal output by loudspeaker；
On the other hand, the voice signal of collection is converted to electric signal by microphone, is converted to audio number after being received by voicefrequency circuit 506
According to then such as another terminal will be sent to through radio circuit 501 after audio data output processor 508 handles, or by sound
Frequency is further processed according to output to memory 502.Voicefrequency circuit 506 is also possible that earphone jack, to provide peripheral hardware
The communication of earphone and 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., it provides wireless broadband internet access for user.
Although Fig. 9 shows wireless fidelity module 507, but it is understood that, and it is not belonging to must be configured into for terminal, completely may be used
To omit within the scope of not changing the essence of the invention as needed.
Processor 508 is the control centre of terminal, using the various pieces of various interfaces and the entire terminal of connection, is led to
It crosses operation or executes the application program being stored in memory 502, and call the data being stored in memory 502, execute
The various functions and processing data of terminal, to carry out integral monitoring to terminal.Optionally, processor 508 may include one or
Multiple processing cores；Preferably, processor 508 can integrate application processor and modem processor, wherein application processor
Main processing operation system, user interface and application program etc., modem processor mainly handles wireless communication.It is understood that
, above-mentioned modem processor can not also be integrated into processor 508.
Terminal further includes the power supply 509 (such as battery) powered to all parts.Preferably, power supply can pass through power supply pipe
Reason system and processor 508 are logically contiguous, to realize management charging, electric discharge and power managed by power-supply management system
Etc. functions.Power supply 509 can also include one or more direct current or AC power source, recharging system, power failure inspection
The random components such as slowdown monitoring circuit, power adapter or inverter, power supply status indicator.
Although being not shown in Fig. 9, terminal can also include camera, bluetooth module etc., and details are not described herein.
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 the process of application program is loaded into memory 502, and is stored in by processor 508 to run
Application program in memory 502, to realize various functions:
Receive the information that finishes playing that playback equipment is sent with predetermined period；It is broadcast according to the acquisition of information that finishes playing with this
Put the clocking error of equipment；It is whether synchronous with the system clock of the playback equipment according to clocking error judgement, to be judged
As a result；Corresponding period modulation order is sent to the playback equipment according to the judgment result, so that the playback equipment is according to this
Period modulation order adjusts the predetermined period.
Preferably, processor 508 has receiving module, obtains module, judgment module, sending module, is described in detail below:
Processor 508 is used to receive the information that finishes playing that playback equipment is sent with predetermined period by receiving module；
Processor 508 is used for by obtaining module according to finish playing acquisition of information and the clock mistake of the playback equipment
Difference；
Processor 508 is used to be judged by judgment module according to the clocking error and whether the system clock of the playback equipment
It is synchronous, to obtain judging result；
Processor 508 is used to send corresponding period modulation to the playback equipment according to the judgment result by sending module
Order, so that the playback equipment adjusts the predetermined period according to the period modulation order.
Aforesaid operations are for details, reference can be made to the embodiment of the method for front, and details are not described herein.
From the foregoing, it will be observed that being sent the embodiment of the invention provides a kind of terminal by reception playback equipment with predetermined period
Finish playing information；According to the clocking error of the finish playing acquisition of information and the playback equipment；Judged according to the clocking error
It is whether synchronous with the system clock of the playback equipment, to obtain judging result；It is sent according to the judgment result to the playback equipment
Corresponding period modulation order, so that the playback equipment adjusts the predetermined period according to the period modulation order.Program root
It is whether synchronous with the playback equipment according to judging with the clocking error of playback equipment, phase is sent to the playback equipment according to judging result
The period modulation order answered, playback equipment adjust the predetermined period according to the period modulation order.When there are multiple playback equipments
When, terminal only needs frequently to communicate with a small number of or individual big playback equipments of clocking error, without with other clocking errors
Small playback equipment frequently communicates, and can reduce the traffic between terminal and multiple playback equipments, it is thus possible to solve well
Certainly due to the traffic between terminal and multiple playback equipments it is big caused by network blockage, the stabilization of play system can be improved
Property.
It should be noted that those of ordinary skill in the art will appreciate that whole in the various methods of above-described embodiment or
Part steps are relevant hardware can be instructed to complete by program, which can store in computer-readable storage medium
In matter, storage medium may include: read-only memory (ROM, Read Only Memory), random access memory (RAM,
Random Access Memory), disk or CD etc..
A kind of control method for playing back, device and terminal is provided for the embodiments of the invention above to be described in detail,
Used herein a specific example illustrates the principle and implementation of the invention, and the explanation of above embodiments is only used
In facilitating the understanding of the method and its core concept of the invention；Meanwhile for those skilled in the art, think of according to the present invention
Think, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as pair
Limitation of the invention.
Claims (8)
1. a kind of control method for playing back characterized by comprising
Original audio data is split into multiple packets of audio data with predetermined time period；
The packets of audio data is sent to playback equipment；
The information that finishes playing that the playback equipment is sent with predetermined period is received, the information that finishes playing is that the broadcasting is set
The information sent after the standby packets of audio data for playing preset quantity；
According to the clocking error of the finish playing acquisition of information and the playback equipment；
It is whether synchronous with the system clock of the playback equipment according to clocking error judgement, to obtain judging result；
When the judging result is synchronous with the system clock of the playback equipment, increase to the playback equipment sending cycle
Order, so that the playback equipment increases the predetermined period；
When the judging result is asynchronous with the system clock of the playback equipment, subtract to the playback equipment sending cycle
Small order, so that the playback equipment reduces the predetermined period.
2. control method for playing back according to claim 1, which is characterized in that described according to clocking error judgement and institute
Whether the system clock for stating playback equipment synchronizes, and to obtain judging result the step of specifically includes:
Judge whether the absolute value of the clocking error is less than preset threshold；
If so, obtained judging result is synchronous with the system clock of the playback equipment；
If it is not, the judging result then obtained is asynchronous with the system clock of the playback equipment.
3. control method for playing back according to claim 1, which is characterized in that include the audio in the packets of audio data
The step of play time of data packet, the clocking error of finish playing according to acquisition of information and the playback equipment tool
Body includes:
The sound that the playback equipment plays the preset quantity is calculated according to the play time and the predetermined time period
The theoretical deadline of frequency data packet；
The reality of the packets of audio data of the preset quantity is played according to the playback equipment described in acquisition of information that finishes playing
Deadline；
The clocking error with the playback equipment is obtained according to the theoretical deadline and the actual finish time.
4. a kind of broadcast control device characterized by comprising
Receiving module is used for:
Original audio data is split into multiple packets of audio data with predetermined time period；
The packets of audio data is sent to playback equipment；
The information that finishes playing that the playback equipment is sent with predetermined period is received, the information that finishes playing is that the broadcasting is set
The information sent after the standby packets of audio data for playing preset quantity；
Obtain module, the clocking error for finish playing according to acquisition of information and the playback equipment；
Judgment module, it is whether synchronous with the system clock of the playback equipment for being judged according to the clocking error, to obtain
Judging result；
Sending module is used for:
When the judging result is synchronous with the system clock of the playback equipment, increase to the playback equipment sending cycle
Order, so that the playback equipment increases the predetermined period；
When the judging result is asynchronous with the system clock of the playback equipment, subtract to the playback equipment sending cycle
Small order, so that the playback equipment reduces the predetermined period.
5. broadcast control device according to claim 4, which is characterized in that the judgment module is specifically used for:
Judge whether the absolute value of the clocking error is less than preset threshold；
If so, obtained judging result is synchronous with the system clock of the playback equipment；
If it is not, the judging result then obtained is asynchronous with the system clock of the playback equipment.
6. broadcast control device according to claim 4, which is characterized in that include the audio in the packets of audio data
The play time of data packet, the acquisition module specifically include:
Computational submodule plays institute for calculating the playback equipment according to the play time and the predetermined time period
State the theoretical deadline of the packets of audio data of preset quantity；
First acquisition submodule, for finishing playing according to, playback equipment described in acquisition of information plays the preset quantity
Packets of audio data actual finish time；
Second acquisition submodule is set for being obtained according to the theoretical deadline and the actual finish time with the broadcasting
Standby clocking error.
7. a kind of terminal characterized by comprising
Touch screen, for receiving the touch operation of user；
It is stored with the memory of executable program code；
The processor coupled with the memory；
The processor calls the executable program code stored in the memory, executes as appointed in claims 1 to 3
Control method for playing back described in one.
8. a kind of storage medium, which is characterized in that computer program is stored in the storage medium, when the computer program
When running on computers, so that the computer perform claim requires 1 to 3 described in any item control method for playing back.
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