CN106454474B - multimedia synchronous playing method, device and system - Google Patents

Abstract

The invention discloses a multimedia synchronous playing method, a device and a system, wherein the method comprises the following steps: according to the method, the priority of the slave equipment is obtained by dividing the priority of the slave equipment according to the play delay amount of the slave equipment relative to the master equipment, the serial number of the data to be played is obtained by setting the serial number of the data to be played, the data to be played is cached to the slave equipment and played according to the priority of the slave equipment and the serial number of the data to be played, so that synchronous playing is realized, the data to be played with the corresponding serial numbers are cached in the slave equipment with different priorities, the operation pressure of the master equipment is relieved, the occupation of network bandwidth is reduced, the whole network environment is optimized, the synchronous playing is smoother and more stable, and the user experience is improved.

Description

Multimedia synchronous playback method, device and system

technical field

The present invention relates to the technical field of multimedia playback, and in particular, to a method, device and system for synchronous playback of multimedia.

Background technique

Multiple playback devices (such as mobile phones, computers, speakers, various players, etc.) are connected through wired or wireless network technology to form a multimedia synchronous playback system, which plays the same audio, video or picture synchronously, which has been widely used. Take the multimedia synchronous playback system as an example, in which, how to realize the synchronous playback of multiple playback devices, so that the sound or picture delay between multiple devices is as small as possible, so as to ensure the consistency of the user's sense of hearing or vision. This is the synchronization of multiple devices. Key technologies for playback.

For example, in multiple playback devices that implement synchronous playback, when the master device and other slave devices are playing synchronously, time synchronization is generally performed before synchronous playback, and then the master device sends multimedia data packets to the slave devices. The play time of the data packet is marked in the data packet, and the slave device performs synchronous play by matching the play time of the data packet with the system time. However, in the process of synchronous playback, the main control device not only needs to play multimedia, but also needs to package and transmit multimedia data packets. If there is too much data to be transmitted, it is easy to cause network congestion and increase the computational burden of the main control device. , it is easy to cause delayed playback or freeze of video or audio, resulting in that the multiple playback devices cannot achieve synchronous playback, which affects user experience. Therefore, further improvement is required.

SUMMARY OF THE INVENTION

The object of the present invention is to provide a multimedia synchronous playback method, device and system, which aims to solve the problem that network congestion is easily caused when the data to be transmitted by the main control device is too much in the multimedia synchronous playback system existing in the prior art, and the main control device is The computing burden of the device is heavier, resulting in the technical problem that the multiple playback devices cannot realize synchronous playback and the user experience is poor.

In order to solve the above-mentioned technical problems, the embodiments of the present invention provide the following technical solutions:

A multimedia synchronous playback method, the method comprises:

According to the playback delay of the multiple slave devices relative to the master device, the multiple slave devices are prioritized to obtain the priority of the slave devices;

Setting numbers to a plurality of data to be played in the main control device, to obtain the numbers of the data to be played;

buffering the plurality of data to be played to the plurality of subordinate devices according to the priority of the subordinate device and the number of the data to be played;

Playing the plurality of data to be played implements synchronous playback between the plurality of slave devices and the master device.

In order to solve the above-mentioned technical problems, the embodiments of the present invention also provide the following technical solutions:

A multimedia synchronous playback device, the device comprises:

a division module, configured to perform priority division on the plurality of subordinate devices according to the playback delay of the plurality of subordinate devices relative to the master device, to obtain the priority of the subordinate devices;

a number setting module for setting numbers to a plurality of data to be played in the main control device, to obtain the number of the data to be played;

a cache module, configured to cache the multiple data to be played to the multiple slave devices according to the priority of the slave device and the number of the data to be played;

The synchronous playing module is used for playing the plurality of data to be played to realize synchronous playing between the plurality of slave devices and the master device.

In order to solve the above-mentioned technical problems, the embodiments of the present invention also provide the following technical solutions:

A multimedia synchronous playback system, comprising a source device, a master device and at least one slave device, wherein the master device establishes a connection with the source device and the slave device through a network, and the master device is used for receiving The multimedia data sent by the source device is used for synchronizing the received multimedia data to the slave device, and the system is implemented by any of the above methods.

Compared with the prior art, the present invention obtains the priority of the slave devices by prioritizing the multiple slave devices according to the playback delay of the multiple slave devices relative to the master device. Set the numbers of the multiple data to be played, obtain the number of the data to be played, and cache the multiple data to be played to the multiple slaves according to the priority of the slave device and the number of the data to be played. The device plays the multiple data to be played to realize synchronous playback between the multiple slave devices and the master device, and caches multiple data to be played with corresponding numbers for slave devices with different priorities, which reduces the burden of the master device. Computing pressure, reduce the occupation of network bandwidth, optimize the entire network environment, avoid network congestion, make the synchronous multimedia playback smoother and more stable, and improve user experience.

Description of drawings

The technical solutions and other beneficial effects of the present invention will be apparent through the detailed description of the specific embodiments of the present invention with reference to the accompanying drawings.

FIG. 1 is a schematic flowchart of a method for synchronously playing multimedia according to a first embodiment of the present invention.

FIG. 2 is a schematic flowchart of a method for synchronously playing multimedia according to a second embodiment of the present invention.

FIG. 3 is a schematic structural diagram of a multimedia synchronous playback device according to a third embodiment of the present invention.

FIG. 4 is another schematic structural diagram of a multimedia synchronous playback device according to a third embodiment of the present invention.

FIG. 5 is a schematic diagram of an operating environment of a multimedia synchronous playback system according to a fourth embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The terms "first", "second" and "third" in the present invention are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes For other steps or units inherent to these processes, methods, products or devices.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor a separate or alternative embodiment that is mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

The execution body of the multimedia synchronous playback method provided by the embodiment of the present invention may be the multimedia synchronous playback device provided by the embodiment of the present invention, or a mobile terminal (such as a desktop computer, a notebook, palmtop computer, tablet computer, smart TV, smart phone, smart speaker, or wearable device with playback function, etc.), the multimedia synchronous playback device can be implemented by hardware or software.

It can be understood that the method described in this embodiment can be applied to an intelligent playing device or a multimedia synchronous playing system. Preferably, the multimedia synchronous playback system generally includes a source device and a plurality of playback devices. Wherein, the plurality of playback devices may include a master device and at least one slave device. Wherein, the source device can be used to provide multimedia data to multiple playback devices, so that multiple playback devices can play synchronously; or the source device can be used to provide multimedia data to a master device in the playback device, The master control device then synchronizes the received multimedia data to the slave devices in the playback device, so as to realize multimedia synchronous playback.

first embodiment

Please refer to FIG. 1 . FIG. 1 is a schematic flowchart of a method for synchronously playing multimedia according to a first embodiment of the present invention. The method includes:

Step S101 , according to the playback delay of the plurality of slave devices relative to the master device, perform priority division on the plurality of slave devices to obtain the priority of the slave devices.

It can be understood that, the method described in this embodiment mainly describes a playback group composed of a plurality of playback devices in a multimedia synchronous playback system. In a playback group, multiple playback devices establish connections through wired or wireless transmission to form a private network environment. The wireless transmission method may be infrared, Bluetooth, WiFi (Wireless Fidelity, wireless local area network), hotspot network, and the like. The private network environment can be connected to one or more routers, and then connected to the Internet through the routers, so that one or more playback devices in the private network environment can directly access the Internet or source devices to obtain multimedia resources.

Wherein, the plurality of playback devices may include a master device and at least one slave device. In general, the main control device in the playback device can be installed with an application APP for controlling the multimedia synchronous playback system, and the playback device in the system can be managed through the application APP, including setting and adjusting the device. , create playlists, obtain multimedia resources, control playback status, etc.

Wherein, the main control device may be a notebook, a palmtop computer, a tablet computer, a smart phone, etc., and the slave device may be a smart phone, a smart speaker, a smart TV, a multimedia screen, and the like.

It can be understood that the playback delay amount can be obtained by obtaining data such as the spatial distance between the multiple slave devices and the master device, or the wireless signal strength, or the network transmission delay, or the device solution type, or the synchronization error level. and obtained after calculation. The playback delay amount may be represented by time, for example, a certain playback delay amount is 5 milliseconds. It can also be represented by the number of data packets containing an equal amount of playback period, for example, a certain delay is 5 data packets containing a 1-millisecond playback period.

Preferably, the multiple slave devices may be prioritized according to the descending order of the playback delay of the multiple slave devices relative to the master device, so as to obtain the priority of the slave devices, wherein the priority of each priority is The slave device corresponds to a playback delay amount of the same value.

For example, the playback delay of slave device A relative to master device M is x milliseconds, the playback delay of slave device B and slave device E relative to master device M is y milliseconds, and the playback delay of slave device C and slave device D relative to the master device M is y milliseconds. The playback delay of the control device M is z milliseconds, and x<y<z; then the multiple slave devices are classified: the first priority includes slave device A, and the second priority includes slave device B and slave device E , the third priority includes slave device C and slave device D.

Step S102, setting numbers for a plurality of data to be played in the main control device, to obtain the numbers of the data to be played.

Preferably, the numbers of the data to be played in the master control device may be set according to the sequence of playback, so as to obtain the numbers of the data to be played.

It can be understood that the multiple data to be played obtained after the media stream formed by the single or multiple multimedia files to be played in the master control device is packaged, and then the multiple data to be played are processed according to the playing sequence. Set the number to obtain the number of the data to be played. For example, the media stream is repackaged into a plurality of to-be-played data containing the same amount of playback time period.

For example, the playback delay of the first priority (slave device A) relative to the master device M is x milliseconds, and the playback delay of the second priority (slave device B and slave E) relative to the master device M is y. milliseconds, the third priority (slave device C and slave device D) is z milliseconds relative to the playback delay of the master control device M, and the multimedia file to be played in the master control device is a media stream containing m milliseconds, and x<y<z<m; according to 1 millisecond as the packaging unit, the media stream is packaged into m pieces of data to be played, each data to be played contains 1 millisecond of playback data, and the The numbers of m pieces of data to be played are set, and the numbers of the data to be played are obtained as 1 to m.

Step S103: Buffer the plurality of data to be played to the plurality of subordinate devices according to the priority of the subordinate device and the number of the data to be played.

It can be understood that due to the playback delay between each slave device and the master device, the master and slave devices are out of sync. In order to achieve synchronous playback between each slave device and the master device, you can According to the priority of the slave device and the number of the data to be played, the multiple data to be played is cached to the multiple slave devices, and the data to be played that needs to be played synchronously is cached in advance before the synchronous playback is performed. , so that when the corresponding slave device starts to play, the data to be played of the corresponding number can be played.

For example, according to the priority of the slave device and the number of the data to be played, multiple data to be played from number x+1 to number m are buffered into the first priority (slave device A); the number y+ A plurality of data to be played from 1 to number m are buffered in the second priority (slave device B and slave device E); a plurality of data to be played from number z+1 to number m are buffered to the third priority (slave device E); C and slave devices D).

Step S104, playing the plurality of data to be played realizes synchronous playing between the plurality of slave devices and the master device.

For example, when the multimedia synchronous playing system starts playing, the master control device M starts playing from the data to be played numbered 1. At the same time, the master control device M sends a plurality of data to be played in the master control device from the data to be played numbered x+1 to the first priority (slave device A), and the master control device M starts from the number of data to be played. The data to be played for y+1 starts to send a plurality of data to be played in the master control device to the second priority (slave device B and slave device E), and the master control device M starts from the numbered z+1. The data to be played starts to send a plurality of data to be played in the master device to the third priority (slave device C and slave device D). When the master control device M plays the data to be played numbered x+1, the slave device A starts to play the data to be played numbered x+1, and the slave device A and the master control device M are at the same time. The synchronous playback adjustment is completed before the y+1 th data to be played is played. When the master control device M and the slave device A play the y+1 th data to be played, the slave device B and the slave device E start playing from the data to be played numbered y+1, while the The slave devices B and E and the master device M complete the synchronous playback adjustment before playing the z+1 th data to be played. When the master control device M and the slave devices A, B and E play to the z+1 th data to be played, the slave device C and the slave device D start playing from the data to be played numbered z+1 . Finally, the synchronous playback between all the slave devices and the master device is realized.

In this embodiment, the priority of the multiple slave devices is divided according to the playback delay of the multiple slave devices relative to the master device to obtain the priority of the slave devices. Set the number of the data to obtain the number of the data to be played, according to the priority of the slave device and the number of the data to be played, cache the multiple data to be played to the multiple slave devices, and play the A plurality of data to be played realizes synchronous playback between the plurality of slave devices and the master device, and multiple data to be played of corresponding numbers are cached for slave devices of different priorities, which reduces the computational pressure of the master device and reduces the need for Occupation of network bandwidth, optimize the entire network environment, avoid network congestion, make multimedia synchronous playback smoother and more stable, and improve user experience.

Second Embodiment

Please also refer to FIG. 2 . FIG. 2 is a schematic flowchart of a method for synchronously playing multimedia according to a second embodiment of the present invention. The method includes:

Step S201, according to the order of the playback delay of the plurality of slave devices relative to the master control device from small to large, perform echelon division on the plurality of subordinate devices, and obtain the echelon corresponding to the subordinate device, wherein the echelon includes: Tier 1 and Tier 2.

It can be understood that the first echelon and the second echelon are used to distinguish different objects, rather than being limited in number, and the echelon may also include the first, second to Nth echelons.

It can be understood that the playback delay amount can be obtained by obtaining data such as the spatial distance between the multiple slave devices and the master device, or the wireless signal strength, or the network transmission delay, or the device solution type, or the synchronization error level. and obtained after calculation. The playback delay amount may be represented by time, for example, a certain playback delay amount is 5 milliseconds. It can also be represented by the number of data packets containing an equal amount of playback period, for example, a certain delay is 5 data packets containing a 1-millisecond playback period.

For example, the playback delay of the slave device A, the slave device B and the slave device E relative to the master device M is a millisecond, the playback delay of the slave device C and the slave device D relative to the master device M is b milliseconds, and a <b; The plurality of slave devices are divided into echelons: the first echelon includes slave device A, slave device B, and slave device E, and the second echelon includes slave device C and slave device D.

Step S202: Set numbers for a plurality of data to be played in the main control device to obtain the numbers of the data to be played.

Preferably, the numbers of the data to be played in the master control device may be set according to the sequence of playback, so as to obtain the numbers of the data to be played.

It can be understood that the multiple data to be played obtained after the media stream formed by the single or multiple multimedia files to be played in the master control device is packaged, and then the multiple data to be played are processed according to the playing sequence. Set the number to obtain the number of the data to be played. For example, the media stream is repackaged into a plurality of to-be-played data containing the same amount of playback time period.

For example, the playback delay of the first echelon (slave device A, slave device B and slave device E) relative to the master device M is a millisecond, and the second echelon (slave device C and slave device D) relative to the master device M The playback delay amount is b milliseconds, and the multimedia file to be played in the master control device is a media stream that contains m milliseconds, and a<b<m; According to 1 millisecond as a packaging unit, the media stream is packaged into m pieces of data to be played, each data to be played contains 1 millisecond of data to be played, and numbers are set for the m pieces of data to be played according to the order of playback, to obtain the numbers of the data to be played, the numbers are 1 to m, Where 1 is the starting number and m is the last number.

Step S203: Buffer the multiple data to be played to the multiple slave devices according to the priority of the slave device and the number of the data to be played.

Preferably, the step S203 can be implemented through steps S2031 and S2032, specifically:

Step S2031, buffer the plurality of data to be played from the first buffer number to the last number to the plurality of slave devices corresponding to the first echelon, wherein the first buffer number is the start number plus the first buffer number. The number corresponding to the amount of playback delay between an echelon and the master device.

For example, multiple to-be-played data numbered a+1 to m are buffered in the first echelon (slave device A, slave device B, and slave device E); where the number a+1 is the first echelon cache number.

Step S2032, buffer the plurality of data to be played from the second buffer number to the last number to the slave device in the second echelon, wherein the second buffer number is the start number plus the The number corresponding to the amount of playback delay between the second echelon and the master control device.

For example, a plurality of to-be-played data numbered b+1 to m are buffered into the second echelon (slave device C and slave device D); where the number b+1 is the cache number of the second echelon.

Step S204 plays the plurality of to-be-played data to realize synchronous playback between the plurality of slave devices and the master device.

Preferably, the step S204 can be implemented through steps S2041 and S2042, specifically:

Step S2041, realizing the adjustment of the synchronous playback between the slave devices in the first echelon and the master device.

It can be understood that when the multimedia synchronous playback system starts to play, the main control device starts to play the data to be played corresponding to the starting number. When the data is to be played, the slave devices in the first echelon are controlled to start playing a plurality of buffered data to be played, and simultaneously communicate with the master device for synchronous playback adjustment.

Preferably, the slave devices in the first echelon should implement the adjustment of the synchronous playback with the master device before the synchronous playback process plays the data to be played corresponding to the second buffer number.

For example, after the multimedia synchronous playing system starts playing, the master control device M starts playing from the data to be played whose starting number is 1. When the master control device M plays the to-be-played data whose first buffer number is a+1, it controls the slave devices (slave device A, slave device B, and slave device E) in the first echelon from the to-be-played data number a+1. The playback data starts to play, and at the same time communicates with the master device for synchronous playback adjustment. The slave devices in the first echelon and the master device M complete synchronous playback adjustment before playing the data to be played with the second buffer number b+1.

Step S2042, when the slave device in the first echelon plays the data to be played corresponding to the second buffer number, the slave device in the second echelon is controlled to start playing a plurality of data to be played in its cache, so as to realize the second echelon. The slave devices in the echelon play synchronously with the master device.

It can be understood that, according to the time progress of playback, when the slave device in the first echelon plays the data to be played corresponding to the second cache number, the slave device in the second echelon is controlled to start playing the multiple pending data in its cache. Play data, and at the same time communicate with the master device for synchronous playback adjustment.

Preferably, the slave devices in the second echelon should adjust the synchronous playback with the master device before the synchronous playback process plays to the data to be played corresponding to the next buffer number.

For example, when the master control device M and the slave devices in the first echelon play the data to be played to the second buffer number b+1, control the slave devices (slave device C and slave device D) in the second echelon Start playing from the data to be played numbered b+1, and communicate with the master device to perform synchronous playback adjustment. The slave devices in the second echelon and the master device M complete the synchronous playback adjustment before playing the data to be played corresponding to the next memory number. Finally, the synchronous playback between all the slave devices and the master device is realized.

In this embodiment, according to the playback delay of the multiple slave devices relative to the master device, the multiple slave devices are divided into echelons to obtain the echelon corresponding to the slave device, and the multiple slave devices in the master device are divided into echelons. Set the number of the data to be played, obtain the number of the data to be played, cache the plurality of data to be played to the plurality of slave devices according to the echelon of the slave device and the number of the data to be played, and play all the data to be played. The plurality of data to be played realizes the synchronous playback between the plurality of slave devices and the master control device, the plurality of data to be played of corresponding numbers are cached to the slave devices of different echelons, and the previous echelon is completed before the next echelon starts to play synchronously. The synchronous playback adjustment with the main control device reduces the computing pressure of the main control device, reduces the occupation of network bandwidth, optimizes the entire network environment, avoids network congestion, makes the synchronous playback of multimedia smoother and more stable, and improves user experience.

Third Embodiment

Please refer to FIG. 3 , which is a schematic structural diagram of a multimedia synchronous playback device according to a third embodiment of the present invention. The multimedia synchronous playing device 30 includes a dividing module 31 , a number setting module 32 , a buffering module 33 , and a synchronous playing module 34 .

Wherein, the dividing module 31 is configured to perform priority division on the plurality of subordinate devices according to the playback delay of the plurality of subordinate devices relative to the master device, so as to obtain the priority of the subordinate devices.

It can be understood that the playback delay amount can be obtained by obtaining data such as the spatial distance between the multiple slave devices and the master device, or the wireless signal strength, or the network transmission delay, or the device solution type, or the synchronization error level. and obtained after calculation. The playback delay amount may be represented by time, for example, a certain playback delay amount is 5 milliseconds. It can also be represented by the number of data packets containing an equal amount of playback period, for example, a certain delay is 5 data packets containing a 1-millisecond playback period.

Preferably, the dividing module 31 may prioritize the plurality of subordinate devices according to the order of the playback delays of the plurality of subordinate devices relative to the master device, so as to obtain the priority of the subordinate devices, wherein, Each type of slave device corresponds to a playback delay of the same value.

The number setting module 32 is configured to set numbers for a plurality of data to be played in the main control device to obtain the numbers of the data to be played.

Preferably, the number setting module 32 sets numbers for a plurality of data to be played in the master control device according to the playing sequence, so as to obtain the numbers of the data to be played.

It can be understood that, for the multiple data to be played obtained after packaging the media stream formed by the single or multiple multimedia files to be played in the master control device, the number setting module 32 performs the sequence of playing to the data to be played. Set numbers of a plurality of data to be played, and obtain the numbers of the data to be played. For example, the media stream is repackaged into a plurality of to-be-played data containing the same amount of playback time period.

The cache module 33 is configured to cache the multiple data to be played to the multiple slave devices according to the priority of the slave device and the number of the data to be played.

It can be understood that due to the playback delay between each slave device and the master device, the master and slave devices are not synchronized, so in order to achieve synchronous playback between each slave device and the master device, all The cache module 33 can cache the plurality of data to be played to the plurality of subordinate devices according to the priority of the subordinate device and the number of the data to be played, and store the data to be played that need to be played synchronously before performing synchronous playback. The playback data is cached in advance, so that when the corresponding slave device starts to play, it can be played from the data to be played of the corresponding number.

The synchronous playing module 34 is configured to play the plurality of data to be played to realize synchronous playing between the plurality of slave devices and the master device.

Please also refer to FIG. 4 . FIG. 4 is another schematic structural diagram of a multimedia synchronous playback device according to a third embodiment of the present invention. The multimedia synchronous playing device 30 includes a dividing module 31 , a number setting module 32 , a buffering module 33 , and a synchronous playing module 34 .

The division module 31 is configured to divide the plurality of subordinate devices into echelons according to the order of the playback delays of the plurality of subordinate devices relative to the master device, and obtain the echelon corresponding to the subordinate devices. , wherein the echelon includes a first echelon and a second echelon.

It can be understood that the first echelon and the second echelon are used to distinguish different objects, rather than being limited in number, and the echelon may also include the first, second to Nth echelons.

It can be understood that the playback delay amount can be obtained by obtaining data such as the spatial distance between the multiple slave devices and the master device, or the wireless signal strength, or the network transmission delay, or the device solution type, or the synchronization error level. and obtained after calculation. The playback delay amount may be represented by time, for example, a certain playback delay amount is 5 milliseconds. It can also be represented by the number of data packets containing an equal amount of playback period, for example, a certain delay is 5 data packets containing a 1-millisecond playback period.

The number setting module 32 is configured to set numbers for a plurality of data to be played in the main control device to obtain the numbers of the data to be played.

Preferably, the number setting module 32 sets numbers for a plurality of data to be played in the master control device according to the playing sequence, so as to obtain the numbers of the data to be played.

It can be understood that, for the multiple data to be played obtained after packaging the media stream formed by the single or multiple multimedia files to be played in the master control device, the number setting module 32 performs the sequence of playing to the data to be played. Set numbers of a plurality of data to be played, and obtain the numbers of the data to be played. For example, the media stream is repackaged into a plurality of to-be-played data containing the same amount of playback time period.

The cache module 33 further includes a first cache unit 331 and a second cache unit 332 .

The first buffer unit 331 is configured to buffer the plurality of data to be played from the first buffer number to the last number to the plurality of slave devices corresponding to the first echelon, wherein the first buffer The number is the start number plus the number corresponding to the amount of playback delay between the first echelon and the master control device.

The second buffer unit 332 is configured to buffer the plurality of data to be played from the second buffer number to the last number to the slave device in the second echelon, wherein the second buffer number is the The starting number is added to the number corresponding to the playback delay between the second echelon and the main control device.

The synchronous playback module 34 further includes an adjustment unit 341 and a playback unit 342 .

It can be understood that the calling sequence of the adjusting unit 341 and the playing unit 342 is not limited.

Wherein, the adjustment unit 341 is configured to realize the adjustment of the synchronous playback between the slave devices in the first echelon and the master control device.

It can be understood that when the multimedia synchronous playback system starts to play, the playback unit 344 controls the main control device to start playing from the data to be played corresponding to the start number. When there is data to be played corresponding to the first buffer number, the playing unit 344 controls the slave devices in the first echelon to start playing a plurality of buffered data to be played, and simultaneously communicates with the master device for synchronous playback adjustment.

Preferably, the adjustment unit 341 realizes the adjustment of playing synchronously with the master device before the slave devices in the first echelon play the data to be played corresponding to the second buffer number.

The playing unit 342 is used to control the slave device in the second echelon to start playing the buffered multiple data to be played when the slave device in the first echelon plays the data to be played corresponding to the second buffer number, The synchronous playback between the slave devices in the second echelon and the master device is realized.

It can be understood that, according to the time course of playback, when the slave device in the first echelon plays the data to be played corresponding to the second cache number, the playback unit 342 controls the slave device in the second echelon to start playing the data. Cache multiple data to be played, and communicate with the master device for synchronous playback adjustment at the same time.

Preferably, the adjustment unit 342 realizes the adjustment of playing synchronously with the master device before the slave devices in the second echelon play the data to be played corresponding to the next buffer number.

Fourth Embodiment

Please refer to FIG. 5. FIG. 5 is a schematic diagram of an operating environment of a multimedia synchronous playback system according to a fourth embodiment of the present invention. The multimedia synchronous playback system described in this embodiment includes a source device 100 , a master device 200 and at least one slave device 300 . Wherein, the master device 200 and at least one slave device 300 both belong to playback devices. The master device 200 establishes a connection with the source device 100 and the slave device 300 through a network, and the slave device 300 establishes a connection with the source device 100 through a network. Wherein, the source device 100 may provide multimedia data to multiple playback devices (such as the master device 200 and at least one slave device 300) through the network, so that the master device 200 and at least one slave device 300 perform synchronous playback; or The master device 200 is configured to receive the multimedia data sent by the source device 100, and to synchronize the received multimedia data to the slave device 300, so as to realize multimedia synchronous playback. Similarly, the slave device 300 may feed back synchronization information to the master device 200 or the source device 100 through the network; the master device 200 may feed back synchronization information to the source device 100 through the network. The multimedia synchronous playback system can implement the implementations described in the multimedia synchronous playback methods provided in the first and second embodiments of the present invention, and can also perform the multimedia synchronous playback provided by the third embodiment of the present invention. The implementation manner described in the device will not be repeated here.

In the above-mentioned embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

In the embodiment of the present invention, the multimedia synchronous playback device and the multimedia synchronous playback method in the above embodiments belong to the same concept, and the multimedia synchronous playback method provided in the embodiment of the multimedia synchronous playback method can be executed on the multimedia synchronous playback device. For any method, for the specific implementation process, please refer to the embodiment of the multimedia synchronous playback method, which will not be repeated here.

It should be noted that, for the multimedia synchronous playback method according to the present invention, ordinary testers in the art can understand that all or part of the process for implementing the multimedia synchronous playback method according to the embodiment of the present invention can be controlled by a computer program. to complete, the computer program can be stored in a computer-readable storage medium, such as in the memory of the terminal, and executed by at least one processor in the terminal, and the execution process can include multimedia synchronization as described The flow of the embodiment of the playback method. The storage medium may be a magnetic disk, an optical disk, a read only memory (ROM, Read Only Memory), a random access memory (RAM, Random Access Memory), and the like.

For the multimedia synchronous playback device according to the embodiment of the present invention, each functional module may be integrated in one processing chip, or each module may exist physically alone, or two or more modules may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. If the integrated module is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium, such as a read-only memory, a magnetic disk or an optical disk, etc. .

A method, device and system for synchronously playing multimedia provided by the embodiments of the present invention have been described above in detail. The principles and implementations of the present invention are described with specific examples in this paper. The descriptions of the above embodiments are only used to help Understand the technical solution of the present invention and its core idea; those of ordinary skill in the art should understand that: it is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements to some of the technical features; and these modifications or The replacement does not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims (6)

1. a multimedia synchronous playing method, is characterized in that, described method comprises: According to the playback delays of the multiple slave devices relative to the master device, the multiple slave devices are prioritized to obtain the priority of the slave devices, including: according to the playback delays of the multiple slave devices relative to the master device Divide the plurality of slave devices into echelons in ascending order to obtain echelons corresponding to the slave devices, wherein the echelons include a first echelon and a second echelon; Setting numbers to a plurality of data to be played in the main control device, to obtain the numbers of the data to be played; According to the priority of the slave device and the number of the data to be played, buffering the plurality of data to be played to the plurality of slave devices includes: storing the plurality of data from the first buffer number to the last number The data to be played is buffered to a plurality of slave devices corresponding to the first echelon, wherein the first buffer number is the start number plus the playback delay amount between the first echelon and the master control device. number; buffer the plurality of data to be played from the second buffer number to the last number to the slave device in the second echelon, wherein the second buffer number is the start number plus the first number The number corresponding to the amount of playback delay between the second echelon and the master control device; Playing the plurality of data to be played to realize synchronous playback between the plurality of slave devices and the master control device includes: when the slave devices in the first echelon play the data to be played corresponding to the second buffer number, The slave devices in the second echelon are controlled to start playing a plurality of buffered data to be played, so as to realize synchronous playback between the slave devices in the second echelon and the master device. 2. The multimedia synchronous playback method according to claim 1, characterized in that, before the slave device in the first echelon plays the data to be played corresponding to the second buffer number, the method further comprises: The adjustment of the synchronous playback between the slave devices in the first echelon and the master device is realized. 3. A multimedia synchronous playback device, wherein the device comprises: The division module is used to prioritize the multiple slave devices according to the playback delay of the multiple slave devices relative to the master device, so as to obtain the priority of the slave devices; Divide the plurality of slave devices into echelons in order of the playback delay of the control device from small to large, and obtain the echelon corresponding to the slave device, wherein the echelon includes a first echelon and a second echelon; a number setting module for setting numbers to a plurality of data to be played in the master control device, to obtain the number of the data to be played; a cache module, configured to cache the multiple data to be played to the multiple slave devices according to the priority of the slave device and the number of the data to be played; a synchronous playback module, configured to play the plurality of data to be played to realize synchronous playback between the plurality of slave devices and the master device; Wherein, the cache module also includes: The first buffer unit is used for buffering the plurality of data to be played from the first buffer number to the last number to the slave devices in the first echelon, wherein the first buffer number is the starting number plus the The number corresponding to the amount of playback delay between the first echelon and the master control device; a second buffer unit, configured to buffer the plurality of data to be played from the second buffer number to the last number to the slave devices in the second echelon, wherein the second buffer number is the start The number plus the number corresponding to the playback delay between the second echelon and the main control device; The synchronous playback module also includes: The playing unit is configured to control the slave devices in the second echelon to start playing the buffered multiple data to be played when the slave devices in the first echelon play the data to be played corresponding to the second cache number, so as to realize the The slave devices in the second echelon play synchronously with the master device. 4. The multimedia synchronous playback device according to claim 3, wherein the synchronous playback module further comprises: The adjustment unit is configured to realize the adjustment of the synchronous playback between the slave devices in the first echelon and the master device. 5. a multimedia synchronous playback system, is characterized in that, comprises source equipment, main control equipment and at least one subordinate equipment, wherein, described main control equipment establishes connection with described source equipment and described subordinate equipment by network, described The master device is configured to receive multimedia data sent by the source device, and to synchronize the received multimedia data to the slave device, and the system is implemented by using the method of any one of claims 1 to 2. 6. A storage medium storing a computer program, wherein the computer program causes a computer to perform the method according to any one of claims 1 to 2.