CN103220301B - A kind of media play controlling method and device thereof - Google Patents
A kind of media play controlling method and device thereof Download PDFInfo
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- CN103220301B CN103220301B CN201310157128.4A CN201310157128A CN103220301B CN 103220301 B CN103220301 B CN 103220301B CN 201310157128 A CN201310157128 A CN 201310157128A CN 103220301 B CN103220301 B CN 103220301B
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Abstract
The embodiment of the invention discloses a kind of media play controlling method and device thereof.The method comprises: media controller obtains media file to be played, and for playing the media player of described media file to be played, the quantity of described media player is at least 2; Described media controller creates plays mark, and set up described play mark and described media file to be played and for play described media file to be played media player between corresponding relation, and send controlling media play instruction respectively to the media player for playing described media file to be played, be used to indicate media file to be played described in media renderer plays, in described controlling media play instruction, carry described broadcasting mark.Adopt the present invention can realize media controller and controlling media play is carried out to multiple media player.
Description
Technical field
The present invention relates to the media processing techniques in the communications field, particularly relate to a kind of media play controlling method and device thereof.
Background technology
DLNA (DigitalLivingNetworkAlliance, DLNA) technology refers to and interconnected by the various equipment (as computer, intelligent television, mobile phone etc.) in home network, can share content of multimedia mutually.DLNA has the concept of media server, media player, media controller, is exactly briefly the content that media controller controls in media renderer plays media server.A simplified example is exactly browsed the content of multimedia in computer by mobile phone wireless, then puts these contents by the machine sowing of mobile phone wireless combat television.
The functional realiey of current DLNA technology is man-to-man, and namely a media controller controls a media player and carries out media play.
Summary of the invention
Embodiments provide a kind of media play controlling method and device thereof, in order to realize media controller, controlling media play is carried out to multiple media player.
The media play controlling method that the embodiment of the present invention provides, comprising:
Media controller obtains media file to be played, and for playing the media player of described media file to be played, the quantity of described media player is at least 2;
Described media controller creates plays mark, and set up described play mark and described media file to be played and for play described media file to be played media player between corresponding relation;
Described media controller sends controlling media play instruction respectively to the media player for playing described media file to be played, be used to indicate media file to be played described in media renderer plays, in described controlling media play instruction, carry described broadcasting mark; Described method also comprises:
After described media controller receives the controlling media play instruction of media player transmission, obtain the broadcasting mark and time parameter of wherein carrying;
Described media controller obtains synchronous error according to the very first time calculation of parameter of the time parameter got and present system time and described media controller record, playback of media files operation is carried out in controlling media play instruction according to receiving, and is carrying out synchronously processing playback of media files operation according to the synchronous error calculated in playback of media files operating process;
The media player that described media controller is corresponding according to the broadcasting identified query got, if inquire at least 2 media players, then generate the controlling media play instruction for broadcast transmission according to the controlling media play instruction received, and the controlling media play instruction that broadcast transmission generates, the broadcasting mark got from the controlling media play instruction received and time parameter is carried in the controlling media play instruction generated, be used to indicate play have with described plays the media player that identifies corresponding media file according to generate also broadcast transmission controlling media play instruction carry out respective media play operation, and carrying out media file synchronously processing according to described time parameter in media play operating process, the value of described time parameter is the very first time parameter that present system time deducts described media controller record,
Wherein, the very first time parameter of media controller record obtains media file to be played and the system time for recording after playing the media player of described media file to be played for described media controller.
The media controller that the embodiment of the present invention provides, comprising:
Acquiring unit, for obtaining media file to be played, and for playing the media player of described media file to be played, the quantity of described media player is at least 2;
Play mark creating unit, for create play mark, and set up described play mark and described media file to be played and for play described media file to be played media player between corresponding relation;
Instruction sending unit, for sending controlling media play instruction respectively to the media player for playing described media file to be played, be used to indicate media file to be played described in media renderer plays, in described controlling media play instruction, carry described broadcasting mark;
Also comprise instruction reception unit, synchronous processing unit and broadcast unit;
Described instruction reception unit, for after the controlling media play instruction receiving media player transmission, obtain the broadcasting mark and time parameter of wherein carrying, the media player corresponding according to the broadcasting identified query got, if inquire at least 2 media players, described instruction sending unit is then indicated to generate the controlling media play instruction for broadcast transmission according to the controlling media play instruction received, and the controlling media play instruction that broadcast transmission generates, the broadcasting mark carrying time parameter in the controlling media play instruction generated and get from the controlling media play instruction received, be used to indicate play have with described plays the media player that identifies corresponding media file according to generate also broadcast transmission controlling media play instruction carry out respective media play operation, and carrying out media file synchronously processing according to described time parameter in media play operating process, the value of described time parameter is the very first time parameter that present system time deducts described synchronous processing unit record,
Described synchronous processing unit, for obtain at described acquiring unit media file to be played and for play described media file to be played media player after, present system time is recorded as very first time parameter; And, receive the controlling media play instruction of media player transmission at described instruction reception unit after, obtain the time parameter wherein carried, the very first time calculation of parameter according to the time parameter got and present system time and described media controller record obtains synchronous error;
Described broadcast unit, playback of media files operation is carried out in controlling media play instruction for receiving according to described instruction reception unit, and synchronously processes playback of media files operation in the synchronous error of carrying out calculating according to described synchronous processing unit in playback of media files operating process;
Described instruction sending unit, also for generating and sending the controlling media play instruction for broadcast transmission according to the instruction of described instruction reception unit.
In the above embodiment of the present invention, media controller is after acquisition media file to be played, controlling media play instruction is sent respectively to multiple media player, to indicate the same media file of these media renderer plays, achieve media controller and controlling media play is carried out to multiple media player.
The media play controlling method that another embodiment of the present invention provides, comprising:
The controlling media play instruction that media players receive media controller sends, described controlling media play instruction is used to indicate media renderer plays and specifies media file, carries and play mark in described controlling media play instruction;
The described corresponding relation play between mark and described appointment media file set up by described media player, plays corresponding media file, and return response according to described controlling media play instruction;
Described media player receives the time synchronized instruction that described media controller is receiving response that described media player returns and sends afterwards, obtain the time parameter and broadcasting mark that wherein carry, calculate synchronous error according to the very first time parameter of the time parameter got and present system time and described media player record and the second time parameter, the synchronous error pair according to calculating synchronously processes with the described play operation identifying corresponding media file of playing; Wherein, the very first time parameter of media player record is system time when receiving time synchronized instruction, second time parameter is the time parameter got from the time synchronized instruction received, and the time parameter carried in time synchronized instruction is the system time of media controller when sending described time synchronized instruction and the difference of system time sending described controlling media play instruction.
The media player that the embodiment of the present invention provides, comprising:
Instruction reception unit, for the controlling media play instruction that receiving media controller sends, described controlling media play instruction is used to indicate media renderer plays and specifies media file, carries and play mark in described controlling media play instruction; And, receive the time synchronized instruction that described media controller is receiving response that described media player returns and sends afterwards;
Corresponding relation processing unit, for setting up the described corresponding relation play between mark and described appointment media file;
Broadcast unit, for playing corresponding media file according to described controlling media play instruction, and returns response; And the synchronous error pair according to calculating synchronously processes with the described play operation identifying corresponding media file of playing;
Synchronous processing unit, for acquisition time parameter from the time synchronized instruction received with play mark, calculate synchronous error according to the very first time parameter of the time parameter got and present system time and described media player record and the second time parameter; Wherein, the very first time parameter of media player record is system time when receiving time synchronized instruction, second time parameter is the time parameter got from the time synchronized instruction received, and the time parameter carried in time synchronized instruction is the system time of media controller when sending described time synchronized instruction and the difference of system time sending described controlling media play instruction.
In the above embodiment of the present invention, media player is carrying out media play according to the controlling media play instruction received from media controller, and from media controller time of reception synchronic command, carry out synchronizing media play process according to time synchronized instruction, the media sync achieving media player and media controller is play.
Accompanying drawing explanation
One of controlling media play schematic flow sheet that Fig. 1 provides for the embodiment of the present invention;
The controlling media play schematic flow sheet two that Fig. 2 provides for the embodiment of the present invention;
The controlling media play schematic flow sheet three that Fig. 3 provides for the embodiment of the present invention;
Fig. 4 A and Fig. 4 B is respectively the structural representation of the media controller that the embodiment of the present invention provides;
The structural representation of the media player that Fig. 5 provides for the embodiment of the present invention.
Embodiment
Embodiments provide a kind of controlling media play scheme, in order to realize media controller, controlling media play is carried out to multiple media player, and synchronizing media play can be ensured further.
The embodiment of the present invention can be applicable to DLNA system architecture, and being applicable to needs multiple media player synchronously to play the scene of same media file, such as market displaying, Waiting Lounge, company's meeting room etc.
In DLNA system architecture, generally include media controller, media player and media server.Media controller is connected by wired or wireless communication mode with between media player and media server, can obtain the media file tabular in media server and media file data, and can carry out controlling media play to media player; Be connected by wired or wireless mode between media player with media server, media file data can be obtained from media server and play; Media server can provide media file data for media controller or/and media player is play.Media player can have multiple.In a kind of typical DLNA framework, wireless communication terminal (as mobile phone) etc. has the equipment of media control function can as media controller, television sets etc. have the equipment of media play function can as media player, and computer etc. have the equipment of media store function can as media server.
Below for above-mentioned DLNA system architecture, the embodiment of the present invention is described in detail.
See Fig. 1, the media controller provided for the embodiment of the present invention is chosen media file and controls the flow process of multiple this media file of media renderer plays, and this flow process can comprise:
Step 102: media controller obtains media file to be played, and for playing the media player of this media file.
During concrete enforcement, user obtains the media file tabular (also referred to as media file catalogue) on media server by media controller, therefrom select media file to be played, user can also obtain media player list by media controller, therefrom selecting the media player for playing this media file, in the present embodiment, allowing user to select multiple (i.e. two or more) media player.Preferably, can give tacit consent to all media players player by default in DLNA system architecture, the operation that user selects media player can be saved like this.
Step 104: media controller creates plays mark (hereinafter referred to as broadcasting ID), and set up this broadcasting ID and media file to be played and and for play this media file to be played media player between corresponding relation.
During concrete enforcement, media controller can be set up media and control list, for recording played ID and the corresponding relation between media file and media player, wherein, play the corresponding same broadcasting ID of all media players of same media file, the broadcasting ID that different media files is corresponding different.A kind of special situation is: if the same media file of media renderer plays of different group, but need to carry out controlling media play based on the grouping of media player, although then the media file of the media renderer plays of different group is identical, also need to form for different media players to build different broadcasting ID.
The media file information that media control to record in list can comprise media file identification or media file name or memory location etc., and the media player information recorded can comprise media player mark or address etc.Certainly, the data store organisation of this corresponding relation is not limited to tabular form.
Step 106: media controller sends controlling media play instruction (i.e. play instruction to the media player for playing media file to be played, as play), be used to indicate this media file to be played of media renderer plays, in this play instruction, carry the broadcasting ID created in step 104.
During concrete enforcement, also carry the information of media file to be played in the play instruction that media controller sends, e.g., file identification, file name or file store path etc., obtain corresponding media file data according to this to enable media player and play.Media controller can adopt mode of unicast to send play instruction respectively to each media player for playing media file to be played.When media controller has media play function, media controller self is also play this media file to be played and is controlled for media, media control function button can be provided in its broadcast interface, such as play, stop the controlling functions etc. such as broadcasting, sound adjustment, playback.
Step 108: media player plays corresponding media file according to the play instruction received.
During concrete enforcement, after media player receives the play instruction of media controller transmission, obtain the information of broadcasting ID and the media file to be played wherein carried, preserve the media file information of this broadcasting ID and correspondence, and the media file data corresponding according to the acquisition of information of media file to be played is play, media control function button can be provided in its broadcast interface, such as play, stop the controlling functions etc. such as broadcasting, sound adjustment, playback.Wherein, if media player this locality stores corresponding media file data, then obtain corresponding media file data from this locality and play, otherwise play from the media file data that media server acquisition is corresponding.
Media controller can be realized by the flow process shown in Fig. 1 to control multiple media player and synchronously play same media file.
After this, media controller can carry out Synchronization Control to playing all media players of same media file, such as, controls these media players and stops playing, replays or fast-forward play etc.Concrete, when media controller needs to carry out Play Control to certain media file of current broadcasting, or when media controller carries out Play Control to the media file that it is being play, media controller adopts broadcast mode to send controlling media play instruction, carries the broadcasting ID that this media file is corresponding in this controlling media play instruction; Receive the media player of this controlling media play instruction, if self playing media file corresponding to this broadcasting ID, then according to the controlling media play instruction received, respective media play operation is carried out to this media file.
Fig. 2 shows a kind of media controller carries out Synchronization Control schematic flow sheet to all media players playing same media file.As shown in the figure, this flow process can comprise:
Step 201: media controller generates the controlling media play instruction for broadcasting according to target media file, carries in the controlling media play instruction broadcasted and plays ID and command content.Described target media file refers to the media file needing to carry out controlling media play.
During concrete enforcement, if media controller possesses media play function, user submits media control request to by the media control function key in operation media controller broadcast interface, such as stop the instruction of broadcasting or fast forwarding and fast rewinding, media controller carries out corresponding media control operation according to this request to its media file play, and obtain corresponding broadcasting ID according to this media control operation, generate the corresponding controlling media play instruction for broadcasting according to this broadcasting ID and the media manipulation type of carrying out.If media controller does not possess media play function, then can choose media player and the media control operation type of media file and this file of broadcasting play, obtain corresponding broadcasting ID according to the media file chosen and media player, generate corresponding controlling media play instruction according to this broadcasting ID and media manipulation type.
Step 202: media controller sends the controlling media play instruction generated with broadcast mode.
Step 203: the media player receiving this controlling media play instruction, according to the broadcasting ID carried in this controlling media play instruction, if determine self playing media file corresponding to this broadcasting ID, then according to this controlling media play instruction, respective media play operation is carried out to this media file.
In above-mentioned steps 201, the embodiment of the present invention realizes media controller by the broadcast in Extended Protocol and carries out Synchronization Control to all media players playing same media file.Shown below a kind of broadcast of expansion:
NOTIFY/eventCtrlHTTP/1.1
Content-Length:0
HOST:172.26.118.112:10
SID:100
Ext:Stop,10000,100
Wherein, eventCtrl represents that this message is controlling media play order; HOST is the address of media controller; SID plays ID; Ext is concrete controlling media play command content, can be divided into three parts, and wherein, Part I is specific instructions, and for stopping play command (Stop) in upper example, Part II is the order time, and Part III is order related data.
In above-mentioned steps 203, because this controlling media play instruction is broadcast, therefore all equipment all can receive this message.After media player receives this message, judge oneself whether to be controlled by corresponding media controller according to HOST and SID wherein and currently whether playing corresponding media file, if it is according to this message, Play Control is carried out to respective media files, otherwise abandon this message.
It should be noted that, above broadcast message format and content are only a kind of example, are not construed as limiting the invention.
Media player, in playback of media files process, by initiating controlling media play instruction to media controller, makes media controller carry out controlling media play to the media player that other plays same media file.
Fig. 3 shows a kind of media player and initiates controlling media play, carries out the schematic flow sheet of Synchronization Control to make controller to other media player playing same media file.As shown in the figure, this flow process can comprise:
Step 301: media player sends controlling media play instruction to media controller, carries in this instruction and plays ID.
During concrete enforcement, when media player operates the media file that it is play, controlling media play instruction can be generated for this operation, and send to media controller.The broadcasting ID that operated media file is corresponding is comprised in this controlling media play instruction.
Step 302: after media controller receives this controlling media play instruction, corresponding media player is inquired about according to the broadcasting ID wherein carried, if the media player of correspondence is multiple (in the media player that namely this broadcasting ID is corresponding, except sending the media player of this controlling media play instruction, also comprise other media player), then generate the controlling media play instruction for broadcasting according to the controlling media play instruction received, wherein carry and play ID and command content, the broadcasting ID parsed from the controlling media play instruction that media player receives in this way in this broadcasting ID and instruction and command content.Form for the controlling media play instruction broadcasted can as previously mentioned, be not described in detail in this.
During concrete enforcement, if media controller self also play this broadcasting ID for media file, then according to the controlling media play instruction received, controlling media play operation is carried out to this media file.
Step 303: media controller broadcasts the controlling media play instruction generated.
Step 304: the media player receiving this controlling media play instruction, according to the broadcasting ID carried in this controlling media play instruction, if determine self playing media file corresponding to this broadcasting ID, then according to this controlling media play instruction, respective media play operation is carried out to this media file.
By the flow process shown in Fig. 2 and Fig. 3, equipment (as comprising media controller and the multiple media player) simultaneous operation to media file of playing same media file can be realized.
After considering that media controller selects media file, when sending play instruction to multiple media player needing to play this media file, send respectively to these media players, this is likely because the system time of different playback equipment is asynchronous or the reason such as network delay causes synchronous error, that is, the media file that these media players and media controller are play may be asynchronous.
In order to reduce synchronous error, the embodiment of the present invention has carried out further optimization to the flow process shown in Fig. 2.
Reduce in the prioritization scheme of synchronous error a kind of, after media controller sends play instruction to all media players for playing media file to be played, the dilatory controlling media play instruction of playing progress rate is sent immediately to these media players, wherein carry as the broadcasting ID corresponding to the media file of control object, be used to indicate the original position playing progress rate of the media file of correspondence being adjusted to this file; After media player receives this media control command, according to the broadcasting ID carried in this instruction, the playing progress rate of the media file of correspondence is controlled the original position at media file, thus realize the synchronous of playback of media files.
Reduce at another kind in the prioritization scheme of synchronous error, utilize media play initial time, the way of each equipment difference calculating error values, to avoid the system time revising each equipment.
Specifically describe the specific implementation of this prioritization scheme below.
Media controller is according to the step 202 in Fig. 2 ~ 206 executable operations.Wherein, in step 202., media controller has been selected media player and has been prepared to record current system time Ts (system time when this Ts is also the media file selected by media controller starts to play) when selected player sends play instruction, and the timing initial value Tv of initialization oneself is 0 and records Tv; In step 206, media controller indicates not releasing network to connect in the play instruction sent.Media player responds after receiving play instruction.
After step 206, after media controller receives the response of media player, immediately to this media player transmitting time synchronic command, the time value of filling in this synchronic command is the timing initial value Tv of media player, the value of this Tv is the Ts that present system time T deducts record in step 202, also carry in this time synchronized instruction and play ID, to refer to, which media file is synchronously processed.The form of this time synchronized instruction can adopt the DLNA control signal form of standard.The response that media controller returns for each media player received, all in the manner described above transmitting time synchronic command.Because send play instruction receive response after network channel set up, now send synchronic command receive time of instruction to the other side can be very short, consuming time negligible, this time synchronized instruction self would not cause synchronous error.
After this, after media player receives synchronic command, record the temporal information of carrying in the current time of its own system and this synchronic command, for convenience of description, present system time is designated as Ts by media player herein, the temporal information of carrying in this synchronic command is designated as Tv, and this Ts and Tv preserved in record.The initial play position of the media file of correspondence, according to Ts and Tv of record, is adjusted on time point T, wherein T=Ts – Tv by media player.After each media player receives synchronic command, adjust the original position of playback of media files all in the manner described above.
Can be found out by above flow process, in media controller and media player, record Ts and Tv separately.Wherein, the Ts recorded in media controller for this media controller selected media player and prepare to selected player send play instruction time record present system time (be also this media controller start play selected by media file time system time), the Tv of record is 0; The Ts of media player record is the system time of this media player when receiving time synchronized instruction, and the Tv of record is the Tv parsed from time synchronized instruction.Ts and Tv that each media player records may be different according to reasons such as network delays, but for media player, the playback of media files Start Time value utilizing formula T=Ts – Tv to calculate is the same, therefore can reduce playback of media files synchronous error, realize playback of media files to a certain extent synchronous.
After this, the flow process shown in the same Fig. 3, after media controller instruction media renderer plays media file, media controller can initiate controlling media play instruction.In order to reduce the synchronous error of playback of media files, the embodiment of the present invention is optimized the flow process shown in Fig. 3.
In step 302, when media controller sends controlling media play signaling with broadcast mode, first obtain its own system current time value T1 (this time value also namely this media controller perform media manipulation time system time), the time value Tc that calculation correction is crossed, and Tc is carried on broadcast transmission in controlling media play instruction.Wherein, Tc=T1 – Ts+Tv, Ts and Tv in this formula are Ts and Tv of this equipment records.For media controller, Ts of its record is the present system time of this media controller when selecting media player and be ready for sending play instruction, and this time is also the system time that this controlling media play device starts when playing media file, Tv=0.
In step 303, after media player receives the controlling media play instruction of media controller broadcast transmission, obtain the Tc wherein carried, calculate relative to self controlling media play T2 time for each instruction, T2=Tc+Ts-Tv, wherein, the Ts (system time namely during time of reception synchronic command) that Ts records for this media player, the Tv (Tv namely parsed from time synchronized instruction) that Tv records for this media player, controlling media play T2 time for each instruction and present system time T is compared, calculate the error time T-T2 of this controlling media play time for each instruction, so just in controlling media play operating process, this error correction can be come.
In like manner, when controlling media play instruction initiated by media player, process and the above-mentioned flow process of its minimizing media sync error are similar.Concrete, after media controller receives the controlling media play instruction of media player transmission, obtain the time parameter Tc wherein carried, according to the time parameter Ts of the time parameter Tc got and present system time and this media controller record, (Tv due to media controller record is 0, therefore ignore herein) calculate synchronous error, playback of media files operation is carried out in controlling media play instruction according to receiving, and carrying out synchronously processing playback of media files operation according to the synchronous error calculated in playback of media files operating process.Also carry time parameter Tc in the controlling media play instruction that media controller adopts broadcast mode to send, be used to indicate media player and carrying out media file synchronously processing in media play operating process according to the time parameter Tc carried in this controlling media play instruction.In this flow process, the value of time parameter Tc is the time parameter Ts that present system time deducts this media controller record.
Based on identical technical conceive, the embodiment of the present invention additionally provides a kind of media controller and a kind of media player.
See Fig. 4 A and Fig. 4 B, it is the structural representation of the media controller that the embodiment of the present invention provides.As shown in the figure, this media controller can comprise: acquiring unit 41, broadcasting mark creating unit 42, instruction sending unit 43, further also can comprise the combination of following a kind of unit or any unit: synchronous processing unit 44, instruction reception unit 45, broadcast unit 46.Fig. 4 A describes the structure of the media controller not comprising synchronous processing unit, and Fig. 4 B describes the structure of the media controller including synchronous processing unit.Wherein:
Acquiring unit 41, for obtaining media file to be played, and for playing the media player of described media file to be played, the quantity of described media player is at least 2;
Play mark creating unit 42, for create play mark, and set up described play mark and described media file to be played and for play described media file to be played media player between corresponding relation;
Instruction sending unit 43, for sending controlling media play instruction respectively to the media player for playing described media file to be played, be used to indicate media file to be played described in media renderer plays, in described controlling media play instruction, carry described broadcasting mark.
Further, broadcast unit 46 after acquiring unit 41 gets media file to be played, can play this media file.
Preferably, instruction sending unit 43 is after sending controlling media play instruction respectively to the media player for playing described media file to be played, controlling media play instruction is sent to the described media player for playing described media file to be played, described broadcasting mark is carried in the controlling media play instruction of current transmission, be used to indicate media player according to the broadcasting mark of carrying in the controlling media play instruction of current transmission, the playing progress rate of the media file of correspondence adjusted to the original position of this media file.
Preferably, synchronous processing unit 44 acquiring unit 41 obtain media file to be played and for play described media file to be played media player after, present system time is recorded as very first time parameter.Accordingly, instruction sending unit 43 is after sending controlling media play instruction respectively to the media player for playing described media file to be played, after receiving the response that media player returns, to the media player transmitting time synchronic command returning response, carry time parameter in described time synchronized instruction and play mark, be used to indicate media player synchronously to process with the described play operation identifying corresponding media file of playing according to the time parameter carried in described time synchronized instruction pair, the value of described time parameter is the very first time parameter that present system time deducts described media controller record.
Preferably, instruction sending unit 43 is after sending controlling media play instruction respectively to the media player for playing described media file to be played, broadcast mode is adopted to send controlling media play instruction, carry described broadcastings mark in the controlling media play instruction adopting broadcast mode to send, being used to indicate broadcasting has and plays the Play Control instruction that the media player that identifies corresponding media file sends according to described employing broadcast mode carry out respective media play operation with described.Further, synchronous processing unit 44 acquiring unit 41 obtain media file to be played and for play described media file to be played media player after, present system time is recorded as very first time parameter.Accordingly, also time parameter is carried in the controlling media play instruction that instruction sending unit 43 adopts broadcast mode to send, be used to indicate the time parameter carried in the controlling media play instruction that media player sends according to described employing broadcast mode carrying out media file synchronously processing in media play operating process, the value of described time parameter is the very first time parameter that present system time deducts described synchronous processing unit record.
Preferably, instruction reception unit 45 is after the controlling media play instruction receiving media player transmission, obtain the broadcasting mark of wherein carrying, the media player corresponding according to the broadcasting identified query got, if inquire at least 2 media players, then indicator transmitting element 43 is according to the controlling media play instruction of the controlling media play instruction generation received for broadcast transmission, and the controlling media play instruction that broadcast transmission generates, the broadcasting mark got from the controlling media play instruction received is carried in the controlling media play instruction generated, be used to indicate play have with described plays the media player that identifies corresponding media file according to generate also broadcast transmission controlling media play instruction carry out respective media play operation.Accordingly, instruction sending unit 43 generates and sends controlling media play instruction for broadcast transmission according to the instruction of instruction reception unit 45.
Preferably, synchronous processing unit 44 is after instruction reception unit 45 receives the controlling media play instruction of media player transmission, obtain the time parameter wherein carried, the very first time calculation of parameter according to the time parameter got and present system time and described media controller record obtains synchronous error.Accordingly, playback of media files operation is carried out in the controlling media play instruction that broadcast unit 46 receives according to instruction reception unit 45, and synchronously processes playback of media files operation in the synchronous error of carrying out calculating according to synchronous processing unit 44 in playback of media files operating process; Also time parameter is carried in the controlling media play instruction that instruction sending unit 43 adopts broadcast mode to send, be used to indicate the time parameter carried in the controlling media play instruction that media player sends according to described employing broadcast mode carrying out media file synchronously processing in media play operating process, the value of described time parameter is the very first time parameter that present system time deducts described media controller record; Wherein, the very first time parameter of media controller record obtains media file to be played and the system time for recording after playing the media player of described media file to be played for described media controller.
See Fig. 5, it is the structural representation of the media player that the embodiment of the present invention provides.This media player can comprise: instruction reception unit 51, corresponding relation processing unit 52, broadcast unit 53, synchronous processing unit 54, wherein:
Instruction reception unit 51, for the controlling media play instruction that receiving media controller sends, described controlling media play instruction is used to indicate media renderer plays and specifies media file, carries and play mark in described controlling media play instruction; And, receive the time synchronized instruction that described media controller is receiving response that described media player returns and sends afterwards;
Corresponding relation processing unit 52, for setting up the described corresponding relation play between mark and described appointment media file;
Broadcast unit 53, for playing corresponding media file according to described controlling media play instruction, and returns response; And the synchronous error pair according to calculating synchronously processes with the described play operation identifying corresponding media file of playing;
Synchronous processing unit 54, for acquisition time parameter from the time synchronized instruction received with play mark, calculate synchronous error according to the very first time parameter of the time parameter got and present system time and described media player record and the second time parameter; Wherein, the very first time parameter of media player record is system time when receiving time synchronized instruction, second time parameter is the time parameter got from the time synchronized instruction received, and the time parameter carried in time synchronized instruction is the system time of media controller when sending described time synchronized instruction and the difference of system time sending described controlling media play instruction.
Further, instruction reception unit 51 goes back the controlling media play instruction of receiving media controller broadcast transmission, carry in described controlling media play instruction and play mark and time parameter, described time parameter is the difference of the very first time parameter of the system time of described media controller when the instruction of broadcast transmission of media Play Control and described media controller record, the very first time parameter of described media controller record obtains media file to be played and the system time for recording after playing the media player of described media file to be played for described media controller.Accordingly, synchronous processing unit 54 also calculates synchronous error according to the very first time parameter of the time parameter got and present system time and described media player record and the second time parameter, and the broadcasting mark according to getting carries out Play Control operation to respective media files; Wherein, the very first time parameter of media player record is system time when receiving time synchronized instruction, second time parameter is the time parameter got from the time synchronized instruction received, and the time parameter carried in time synchronized instruction is the system time of media controller when sending described time synchronized instruction and the difference of system time sending described controlling media play instruction.Accordingly, the synchronous error that broadcast unit 53 is carrying out calculating according to described synchronous processing unit in Play Control operating process synchronously processes.
Further, above-mentioned media player also can comprise instruction sending unit 55.Instruction sending unit 55 is for sending controlling media play instruction to media controller, described broadcasting mark and time parameter is carried in the controlling media play instruction of current transmission, be used to indicate media controller carrying out media file synchronously processing in media play operating process according to the time parameter carried in the controlling media play instruction of current transmission, the value of described time parameter is the very first time parameter that present system time deducts synchronous processing unit 54 record, adds the second time parameter that synchronous processing unit 54 records.
The embodiment of the present invention additionally provides a kind of DLNA system, comprises above-mentioned media controller and above-mentioned media player, can also comprise the media server for providing media file data, and wherein, media player is at least 2.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (13)
1. a media play controlling method, is characterized in that, described method comprises:
Media controller obtains media file to be played, and for playing the media player of described media file to be played, the quantity of described media player is at least 2;
Described media controller creates plays mark, and set up described play mark and described media file to be played and for play described media file to be played media player between corresponding relation;
Described media controller sends controlling media play instruction respectively to the media player for playing described media file to be played, be used to indicate media file to be played described in media renderer plays, in described controlling media play instruction, carry described broadcasting mark;
Described method also comprises:
After described media controller receives the controlling media play instruction of media player transmission, obtain the broadcasting mark and time parameter of wherein carrying;
Described media controller obtains synchronous error according to the very first time calculation of parameter of the time parameter got and present system time and described media controller record, playback of media files operation is carried out in controlling media play instruction according to receiving, and is carrying out synchronously processing playback of media files operation according to the synchronous error calculated in playback of media files operating process;
The media player that described media controller is corresponding according to the broadcasting identified query got, if inquire at least 2 media players, then generate the controlling media play instruction for broadcast transmission according to the controlling media play instruction received, and the controlling media play instruction that broadcast transmission generates, the broadcasting mark got from the controlling media play instruction received and time parameter is carried in the controlling media play instruction generated, be used to indicate play have with described plays the media player that identifies corresponding media file according to generate also broadcast transmission controlling media play instruction carry out respective media play operation, and carrying out media file synchronously processing according to described time parameter in media play operating process, the value of described time parameter is the very first time parameter that present system time deducts described media controller record,
Wherein, the very first time parameter of media controller record obtains media file to be played and the system time for recording after playing the media player of described media file to be played for described media controller.
2. the method for claim 1, is characterized in that, the method also comprises:
After described media controller sends controlling media play instruction respectively to the media player for playing described media file to be played, the dilatory controlling media play instruction of playing progress rate is sent to the described media player for playing described media file to be played, carry described broadcastings in the controlling media play instruction that the described playing progress rate of current transmission is dilatory to identify, be used to indicate the broadcasting mark of carrying in the controlling media play instruction that media player draws according to the described playing progress rate of described current transmission, the playing progress rate of the media file of correspondence is adjusted to the original position of this media file,
Or the method also comprises:
Described media controller obtain media file to be played and for play described media file to be played media player after, present system time is recorded as very first time parameter;
After described media controller sends controlling media play instruction respectively to the media player for playing described media file to be played, after receiving the response that media player returns, to the media player transmitting time synchronic command returning response, carry time parameter in described time synchronized instruction and play mark, be used to indicate media player synchronously to process with the described play operation identifying corresponding media file of playing according to the time parameter carried in described time synchronized instruction pair, the value of described time parameter is the very first time parameter that present system time deducts described media controller record.
3. the method for claim 1, is characterized in that, described media controller also comprises after sending controlling media play instruction respectively to the media player for playing described media file to be played:
Described media controller adopts broadcast mode to send controlling media play instruction, time parameter and described broadcasting mark is carried in the controlling media play instruction adopting broadcast mode to send, be used to indicate to play to have and play the controlling media play instruction that the media player that identifies corresponding media file sends according to described employing broadcast mode carry out respective media play operation with described, and carrying out media file synchronously processing in media play operating process according to described time parameter; The value of described time parameter is the very first time parameter that present system time deducts described media controller record, and the very first time parameter of described media controller record obtains media file to be played and the system time for recording after playing the media player of described media file to be played for described media controller.
4. a media play controlling method, is characterized in that, described method comprises:
The controlling media play instruction that media players receive media controller sends, described controlling media play instruction is used to indicate media renderer plays and specifies media file, carries and play mark in described controlling media play instruction;
The described corresponding relation play between mark and described appointment media file set up by described media player, plays corresponding media file, and return response according to described controlling media play instruction;
Described media player receives the time synchronized instruction that described media controller is receiving response that described media player returns and sends afterwards, obtain the time parameter and broadcasting mark that wherein carry, calculate synchronous error according to the very first time parameter of the time parameter got and present system time and described media player record and the second time parameter, the synchronous error pair according to calculating synchronously processes with the described play operation identifying corresponding media file of playing; Wherein, the very first time parameter of media player record is system time when receiving time synchronized instruction, second time parameter is the time parameter got from the time synchronized instruction received, and the time parameter carried in time synchronized instruction is the system time of media controller when sending described time synchronized instruction and the difference of system time sending described controlling media play instruction.
5. method as claimed in claim 4, it is characterized in that, described method also comprises:
The controlling media play instruction of described media players receive media controller broadcast transmission, carry in the controlling media play instruction of described broadcast transmission and play mark and time parameter, described time parameter is the difference of the very first time parameter of the system time of described media controller when the instruction of broadcast transmission of media Play Control and described media controller record, the very first time parameter of described media controller record obtains media file to be played and the system time for recording after playing the media player of described media file to be played for described media controller,
Described media player calculates synchronous error according to the very first time parameter of the time parameter got and present system time and described media player record and the second time parameter, broadcasting mark according to getting carries out Play Control operation to respective media files, and is carrying out synchronously processing according to the synchronous error calculated in Play Control operating process; Wherein, the very first time parameter of media player record is system time when receiving time synchronized instruction, second time parameter is the time parameter got from the time synchronized instruction received, and the time parameter carried in time synchronized instruction is the system time of media controller when sending described time synchronized instruction and the difference of system time sending described controlling media play instruction.
6. the method as described in claim 4 or 5, is characterized in that, the method also comprises:
Described media player sends controlling media play instruction to media controller, described media identification and time parameter is carried in the controlling media play instruction of current transmission, be used to indicate media controller carrying out media file synchronously processing in media play operating process according to the time parameter carried in the controlling media play instruction of current transmission, the value of described time parameter is the very first time parameter that present system time deducts described media player record, adds the second time parameter of described media player record.
7. a media controller, is characterized in that, comprising:
Acquiring unit, for obtaining media file to be played, and for playing the media player of described media file to be played, the quantity of described media player is at least 2;
Play mark creating unit, for create play mark, and set up described play mark and described media file to be played and for play described media file to be played media player between corresponding relation;
Instruction sending unit, for sending controlling media play instruction respectively to the media player for playing described media file to be played, be used to indicate media file to be played described in media renderer plays, in described controlling media play instruction, carry described broadcasting mark;
Also comprise instruction reception unit, synchronous processing unit and broadcast unit;
Described instruction reception unit, for after the controlling media play instruction receiving media player transmission, obtain the broadcasting mark and time parameter of wherein carrying, the media player corresponding according to the broadcasting identified query got, if inquire at least 2 media players, described instruction sending unit is then indicated to generate the controlling media play instruction for broadcast transmission according to the controlling media play instruction received, and the controlling media play instruction that broadcast transmission generates, the broadcasting mark carrying time parameter in the controlling media play instruction generated and get from the controlling media play instruction received, be used to indicate play have with described plays the media player that identifies corresponding media file according to generate also broadcast transmission controlling media play instruction carry out respective media play operation, and carrying out media file synchronously processing according to described time parameter in media play operating process, the value of described time parameter is the very first time parameter that present system time deducts described synchronous processing unit record,
Described synchronous processing unit, for obtain at described acquiring unit media file to be played and for play described media file to be played media player after, present system time is recorded as very first time parameter; And, receive the controlling media play instruction of media player transmission at described instruction reception unit after, obtain the time parameter wherein carried, the very first time calculation of parameter according to the time parameter got and present system time and described media controller record obtains synchronous error;
Described broadcast unit, playback of media files operation is carried out in controlling media play instruction for receiving according to described instruction reception unit, and synchronously processes playback of media files operation in the synchronous error of carrying out calculating according to described synchronous processing unit in playback of media files operating process;
Described instruction sending unit, also for generating and sending the controlling media play instruction for broadcast transmission according to the instruction of described instruction reception unit.
8. media controller as claimed in claim 7, it is characterized in that, described instruction sending unit also for, after sending controlling media play instruction respectively to the media player for playing described media file to be played, the dilatory controlling media play instruction of playing progress rate is sent to the described media player for playing described media file to be played, carry described broadcastings in the controlling media play instruction that the described playing progress rate of current transmission is dilatory to identify, be used to indicate the broadcasting mark of carrying in the controlling media play instruction that media player draws according to the described playing progress rate of current transmission, the playing progress rate of the media file of correspondence is adjusted to the original position of this media file.
9. media controller as claimed in claim 7, is characterized in that, also comprise: synchronous processing unit;
Described synchronous processing unit, for obtain at described acquiring unit media file to be played and for play described media file to be played media player after, present system time is recorded as very first time parameter;
Described instruction sending unit also for, after sending controlling media play instruction respectively to the media player for playing described media file to be played, after receiving the response that media player returns, to the media player transmitting time synchronic command returning response, carry time parameter in described time synchronized instruction and play mark, be used to indicate media player synchronously to process with the described play operation identifying corresponding media file of playing according to the time parameter carried in described time synchronized instruction pair, the value of described time parameter is the very first time parameter that present system time deducts described media controller record.
10. media controller as claimed in claim 7, is characterized in that, also comprise synchronous processing unit;
Described synchronous processing unit, for obtain at described acquiring unit media file to be played and for play described media file to be played media player after, present system time is recorded as very first time parameter;
Described instruction sending unit also for, after sending controlling media play instruction respectively to the media player for playing described media file to be played, broadcast mode is adopted to send controlling media play instruction, time parameter and described broadcasting mark is carried in the controlling media play instruction adopting broadcast mode to send, be used to indicate to play to have and play the controlling media play instruction that the media player that identifies corresponding media file sends according to described employing broadcast mode carry out respective media play operation with described, and carrying out media file synchronously processing in media play operating process according to described time parameter, the value of described time parameter is the very first time parameter that present system time deducts described synchronous processing unit record, and the very first time parameter of described synchronous processing unit record obtains media file to be played and the system time for recording after playing the media player of described media file to be played for described acquiring unit.
11. 1 kinds of media players, is characterized in that, comprising:
Instruction reception unit, for the controlling media play instruction that receiving media controller sends, described controlling media play instruction is used to indicate media renderer plays and specifies media file, carries and play mark in described controlling media play instruction; And, receive the time synchronized instruction that described media controller is receiving response that described media player returns and sends afterwards;
Corresponding relation processing unit, for setting up the described corresponding relation play between mark and described appointment media file;
Broadcast unit, for playing corresponding media file according to described controlling media play instruction, and returns response; And the synchronous error pair according to calculating synchronously processes with the described play operation identifying corresponding media file of playing;
Synchronous processing unit, for acquisition time parameter from the time synchronized instruction received with play mark, calculate synchronous error according to the very first time parameter of the time parameter got and present system time and described media player record and the second time parameter; Wherein, the very first time parameter of media player record is system time when receiving time synchronized instruction, second time parameter is the time parameter got from the time synchronized instruction received, and the time parameter carried in time synchronized instruction is the system time of media controller when sending described time synchronized instruction and the difference of system time sending described controlling media play instruction.
12. media players as claimed in claim 11, it is characterized in that, described instruction reception unit also for, the controlling media play instruction of receiving media controller broadcast transmission, carry in described controlling media play instruction and play mark and time parameter, described time parameter is the difference of the very first time parameter of the system time of described media controller when the instruction of broadcast transmission of media Play Control and described media controller record, the very first time parameter of described media controller record obtains media file to be played and the system time for recording after playing the media player of described media file to be played for described media controller,
Described synchronous processing unit also for, calculate synchronous error according to the very first time parameter of the time parameter got and present system time and described media player record and the second time parameter, the broadcasting mark according to getting carries out Play Control operation to respective media files; Wherein, the very first time parameter of media player record is system time when receiving time synchronized instruction, second time parameter is the time parameter got from the time synchronized instruction received, and the time parameter carried in time synchronized instruction is the system time of media controller when sending described time synchronized instruction and the difference of system time sending described controlling media play instruction;
Described broadcast unit specifically for, synchronously process in the synchronous error of carrying out calculating according to described synchronous processing unit in Play Control operating process.
13. media players as claimed in claim 11, is characterized in that, also comprise instruction sending unit;
Described instruction sending unit, for sending controlling media play instruction to media controller, described broadcasting mark and time parameter is carried in the controlling media play instruction of current transmission, be used to indicate media controller carrying out media file synchronously processing in media play operating process according to the time parameter carried in the controlling media play instruction of current transmission, the value of described time parameter is the very first time parameter that present system time deducts described synchronous processing unit record, adds the second time parameter of described synchronous processing unit record.
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| CN201310157128.4A CN103220301B (en) | 2013-04-28 | 2013-04-28 | A kind of media play controlling method and device thereof |
| CN201610229654.0A CN105791922B (en) | 2013-04-28 | 2013-04-28 | A kind of media play controlling method and its device |
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