CN100549987C - MP3 playback equipment and method thereof with multifile synchronous playing function - Google Patents
MP3 playback equipment and method thereof with multifile synchronous playing function Download PDFInfo
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- CN100549987C CN100549987C CNB200410025953XA CN200410025953A CN100549987C CN 100549987 C CN100549987 C CN 100549987C CN B200410025953X A CNB200410025953X A CN B200410025953XA CN 200410025953 A CN200410025953 A CN 200410025953A CN 100549987 C CN100549987 C CN 100549987C
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Abstract
The present invention handles mp3 file by the mp3 file form, increased multifile time synchronized table, thereby realize the function that MP3 song and animation in synchronization are play, music and video file are organically combined, realize the synchronous playing of animation and MP3 sound, therefore the user can fully realize perfect seeing and hearing enjoyment, the present invention also allows the autonomous editor of user to generate animation and the synchronous concordance list of MP3 automatically and is updated in the mp3 file, and the present invention also can be not limited to song, and is used for the synchronous learning method of MP3 animation.
Description
One, technical field
The present invention relates to a kind of MP3 playback equipment and method thereof, relate in particular to a kind of MP3 playback equipment and method thereof with multifile synchronous playing function.
Two, background technology
MP3 is the abbreviation of MPEG (MPEG:Moving Picture Experts Group) Audio Layer-3, is the encoding scheme of deriving of MPEG1, and 1993 by German Fraunhofer IIS research institute and the cooperative development success of Thomson company.The tonequality that MP3 can accomplish 12: 1 surprising ratio of compression and keep can listening substantially, along with popularizing of network, MP3 is accepted by hundreds of millions of users.The various software products relevant with MP3 emerge in an endless stream, and more hardware product also begins to support MP3, and the VCD/DVD player that can buy on the market at present much can both be supported the MP3 playing function, also has more portable MP 3 player or the like.
A lot of audio formats can attach record " song basic document " (IDTAG at present, SongInformation), present standard format is ID3V1 (referring to ID3 tag information V1, is MP3 standard header label message, and V1 is a version number) or ID3V2.ID3V2 is replacing ID3V1 gradually now, become new standard format, it is better than former ID3V1 part and is, the ID3V1 form is the fixed field form, can only define in the 128bytes at song files end and fixing field, ID3V2 then can be according to each type format of different frame (Frame ID) flexible definition, and according to the difference of keyword, obtain different effective song messages, but and provide the function of music editing message flexibly.For example, MP3 format is just supported ID3V2 song basic document form, can put down in writing in the MP3 song files: song title, album name, singer philharmonic society name, product time, the lyrics, recording cover, MP3 deposit music quality, author's network address etc.
Generally speaking, mostly increased the MP3 function on the electronic installation now, pretty good on the function though MP3 is on the market doing a large amount of significant trials aspect the demonstration of the sound and the lyrics at present, still have not all roses part.
Traditional MP3 player has sound and captions playing function, except played songs, the user can only see the content of pure words such as the title of the song, the lyrics of song by LCD, it is dull that interface seems, lack dynamic color, can't realize perfectly " seeing and hearing enjoyment ", therefore look the efficacious prescriptions face shortcoming place of present MP3 just.
Therefore, develop and a kind ofly have sound and look audio-visual the MP3 player of imitating the synchronous playing function, can so that the user light, joyful experience music, can well experience the enjoyment of MTV again, fully realized seeing and hearing enjoyment, real is a kind of Perfected process that helps user's enjoy music.
Three, summary of the invention
The invention solves the MP3 that exists in the above-mentioned background technology can only the play sound effect file and technical matters that can not playing video file.
Technical scheme of the present invention is: a kind of MP3 playback equipment with multifile synchronous playing function, and its special character is: this equipment comprises and is used for the central processing unit of centralized control data transmission and signal Processing; Be used to provide the communication interface of data input and output; Be used for the storage device of store files data; Be used for tone decoder with DAB decoding; Be used for the display of display video image; Be used for the loudspeaker of playing audio signal; Be used for controlling the simultaneously playing device of the synchronous playing of multifile, this simultaneously playing device comprises that the synchronization frame that is used for according to a plurality of files generates the synchronous message generation module of synchronous message and is used for synchronous playing control module according to a plurality of files of synchronous message synchronous playing.
Above-mentioned communication interface is a USB interface.
Above-mentioned synchronous message generation module comprises:
Be used for detecting the monitoring unit of the synchronous start frame that the user chooses hereof;
Be used for the synchronous start frame between a plurality of files is set related setup unit;
Be used for that this incidence relation is generated contingency table and be stored in storage element in main broadcaster's file.
Above-mentioned synchronous playing control module also comprises: the resolution unit that is used for analyzing this association message; Be used for resetting according to a plurality of files of the directed synchronous playing of this association message to the unit.
The present invention also provides a kind of synchronous message generation method with MP3 playback equipment of multifile synchronous playing function, and its special character is: this method comprises the steps: 1) definition synchronization frame data structure in the MP3ID3V2 file header; 2) in main broadcaster's file and setting synchronization frame association from broadcast file synchronously thereof; 2.1), play this main broadcaster's file and from broadcasting file; 2.2), need in main broadcaster's file, to select the start frame of synchronous playing; 2.3), at start frame that need from broadcast file, to select synchronous playing; 2.4), set main broadcaster's file and start frame from broadcast file related; 3) generate synchronisation offset according to this association; 4) generate synchronous message according to this side-play amount; 5) deposit this synchronous message in this main broadcaster's file according to this document head form.
Above-mentioned ID3V2 file header synchronization frame data structure is:
| frame id | Long ID | Short ID | Tag discrd | Field discrd | Field defs | Descriptions |
| ID3FID_LI NKEDINFO | ″LNK″ | ″LINK″ | False | false | ID3FD_Link edInfo | Linked information |
Wherein,
Frame id represents the MP3 structure type definition of ID3V2 form;
Long ID represents the MP3 structural key speech definition of ID3V2 form;
Short ID represents the MP3 structural key speech definition of ID3V2 form;
Tag discrd represents the description character of the MP3 header structure of ID3V2 form;
Field discrd represents the description character of field unit in the MP3 header structure of ID3V2 form;
Field defs represents the type definition of field unit in the MP3 header structure of ID3V2 form;
Descriptions represents the type specification character of field unit in the MP3 header structure of ID3V2 form.
Above-mentioned steps 2) concrete steps are as follows:
2-1) play this main broadcaster's file and from broadcasting file;
2-2) need in main broadcaster's file, to select the start frame of synchronous playing;
2-3) at start frame that from broadcast file, need to select synchronous playing;
2-4) set main broadcaster's file and the start frame from broadcast file related.
Above-mentioned main broadcaster's file is the MP3 music file, is animation file from broadcasting file.
The present invention also provides a kind of synchronous broadcast method with MP3 playback equipment of multifile synchronous playing function, and its special character is: this method may further comprise the steps:
1) reads MP3 ID3V2 file header data;
2) be complementary according to this document head data and MP3 format file; Obtain MP3 song frame type according to the ID3V2 form, and mate, if coupling just begins to resolve animation in synchronization message and MP3 music message from song files according to frame type acquisition keyword and MP3 song formats;
3) file with coupling is made as main broadcaster's file;
4) play this main broadcaster's file and also therefrom read synchronous message; In songs playing process, obtain the song message related, music message and animation information are associated, according to synchronous message, by resetting to the cell location synchronous broadcast document by song message, synchronous message with synchronous message;
5) according to this synchronous message of synchronous message synchronous playing point to from broadcasting file.
Above-mentioned steps 2) be to mate the MP3 format file according to the keyword message in this document head data.
Above-mentioned main broadcaster's file is the MP3 music file, is animation file from broadcasting file.
The present invention has following advantage:
The present invention handles mp3 file by the mp3 file form, increased multifile (for example animation information and audio document) time synchronized table, thereby realize the function that MP3 song and animation in synchronization are play, music and video file are organically combined, realize the synchronous playing of animation and MP3 sound, therefore the user can fully realize perfect seeing and hearing enjoyment, the present invention also allows the autonomous editor of user to generate animation and the synchronous concordance list of MP3 automatically and is updated in the mp3 file, and the present invention also can be not limited to song, and is used for the synchronous learning method of MP3 animation.
Four, description of drawings
Fig. 1 is MP3 playback equipment hardware structure figure of the present invention;
Fig. 2 is the structural representation of simultaneously playing device of the present invention;
Fig. 3 generates method flow diagram for the synchronous message of MP3 playback equipment of the present invention;
Fig. 4 sets the process flow diagram of synchronization association step for the present invention;
Fig. 5 is the synchronous broadcast method process flow diagram of MP3 playback equipment of the present invention;
Fig. 6 is the synoptic diagram of animation frame of the present invention and voiced frame time synchronized table.
Five, embodiment
The invention provides a kind of MP3 playback equipment, insert synchronous message by a MP3ID3V2 normative document form with multifile synchronous playing function, thus a plurality of files of synchronous playing.
Referring to Fig. 1, this MP3 equipment comprises central processing unit 101, communication interface 102, storage device 103, tone decoder 104, display 105, loudspeaker 106 and simultaneously playing device 107.Central processing unit 101 is connected with communication interface 102, storage device 103, tone decoder 104, display 105, loudspeaker 106 and simultaneously playing device 107 respectively.
Wherein, central processing unit 101 is used for centralized control data transmission and signal Processing; Communication interface 102 is used to give information and imports and the interface of exporting, and it can be a USB interface; Storage device 103 is used for the store files data; Tone decoder 104 is used for DAB is deciphered; Display 105 is used for display video image; Loudspeaker 106 is used for playing audio signal; Simultaneously playing device 107 is used to control the synchronous playing of multifile.
Referring to Fig. 2, wherein simultaneously playing device 107 comprises synchronous message generation module 1071 and synchronous playing control module 1072, synchronous message generation module 1071 is in order to generating synchronous message according to the synchronization frame of a plurality of files, and synchronous playing control module 1072 is in order to according to a plurality of files of synchronous message synchronous playing.
Synchronous message generation module 1071 also comprises monitoring unit 10711, setup unit 10712 and storage element 10713.Wherein, the synchronous start frame that monitoring unit 10711 is chosen hereof in order to the detecting user, setup unit 10712 is related in order to the synchronous start frame between a plurality of files is set, and storage element 10713 is stored in main broadcaster's file in order to this incidence relation is generated contingency table.
Synchronous playing control module 1072 also comprises resolution unit 10721 and resets to unit 10722.Resolution unit 10721 resets to unit 10722 in order to a plurality of files according to the directed synchronous playing of this association message in order to analyze this association message.
Referring to Fig. 3, synchronous message generation method comprises: step 301, definition synchronization frame data structure in MP3 ID3V2 file header; Step 302, at main broadcaster's file and from broadcast file, set the synchronization frame association synchronously; Step 303, generate synchronisation offset according to association; Step 304, generate synchronous message according to side-play amount; Step 305, deposit this synchronous message in this main broadcaster's file according to this document head form.
ID3V2 file header synchronization frame data structure can be:
| frame id | Long ID | Short ID | Tag discrd | Field discrd | Field defs | Descriptions |
| ID3FID_LI NKEDINFO | ″LNK″ | ″LINK″ | false | false | ID3FD_Link edInfo | Linked information |
Wherein,
Frame id represents the MP3 structure type definition of ID3V2 form;
Long ID represents the MP3 structural key speech definition of ID3V2 form;
Short ID represents the MP3 structural key speech definition of ID3V2 form;
Tag discrd represents the description character of the MP3 header structure of ID3V2 form;
Field discrd represents the description character of field unit in the MP3 header structure of ID3V2 form;
Field defs represents the type definition of field unit in the MP3 header structure of ID3V2 form;
Descriptions represents the type specification character of field unit in the MP3 header structure of ID3V2 form.
Referring to Fig. 4, above-mentioned steps 302 is at main broadcaster's file and set synchronously the step of synchronization frame association from broadcast file, also comprises the steps: step 401, plays this main broadcaster's file and from broadcasting file; Step 402, need in main broadcaster's file, to select the start frame of synchronous playing; Step 403, at start frame that need from broadcast file, to select synchronous playing; Step 404, main broadcaster's file and the setting of the start frame from broadcast file is related.
Referring to Fig. 5, synchronous broadcast method comprises: step 501, read MP3 ID3V2 file header data; Step 502, be complementary according to file header data and MP3 format file; Step 503, with the coupling file be made as main broadcaster's file; Step 504, play this main broadcaster's file and therefrom read synchronous message; Step 505, according to synchronous message synchronous playing synchronous message point to from broadcasting file.
In view of the MP3 playback equipment mostly playing the music file of MP3 format, and the easiest in the video file with animation file, below just be master file with the music file, animation file is described in detail as follows for being example from broadcasting file synchronously.
At first can animation information and MP3 song files be stored into storage device 103 (as: Nand Flash Card by USB communication interface 102, NOR Flash Card) in, in the process of played songs, retrieve and MP3 music synchronized relation table, then according to a MP3 ID3V2 normative document form, in mp3 file, insert the synchronized relation table of animation and the corresponding MP3 data content of animation position, perhaps insert the path at this data place.When main frame passed through MP3 DAB code translator 104 playing back music, main frame showed the animation frame corresponding with music synchronously by the synchronized relation table.
The present invention requires operating system to support multi-line (Thread) operational mode, need to open two circuits: circuit is used for controlling the control of control of MP3 music and display synchronization animation as main line, and the another one circuit is as the music of sub-circuit in order to control MP3 tone decoder.
The present invention can be according to user's selection and is generated synchronous message automatically.For example can be at first playing back music and animation file simultaneously, the user can select fragment that time of music and animation play as the synchronous start frame of needs at any time, this moment, monitoring unit 10711 was monitored user's selection at any time in background, and set related with the synchronous start frame in the animation file music file by setup unit 10712, and generation synchronous message table, as shown in Figure 6, the animation frame synchronous message is meant the animation frame message that is complementary with song content; The music message is meant synchronous messages such as the file address, song time of playback of songs, and therefore, this table can be thought animation frame and voiced frame time synchronizing relation table.According to a MP3ID3V2 normative document form, the synchronized relation table is deposited in the mp3 file then by storage element 10713.The MP3 song files that adds synchronous message still is the ID3V2 form of standard.Go for any MP3 playback of songs device that can play the ID3V2 form.
Synchronous playing process of the present invention is based on animation and MP3 music synchronous message carries out, at first obtain MP3 song frame type (Frame Type) according to the ID3V2 form, and obtain keyword and the MP3 song formats is mated according to frame type, if coupling just begins to resolve animation in synchronization frame message and MP3 music message by resolution unit 10721 from song files, in songs playing process, obtain the song message related with synchronous message, by the song message, synchronous message associates song message and animation information, according to synchronous message, by resetting to unit 10722 location synchronous broadcast documents, process in playback of songs begins to open synchronously animation file, beginning playing animation, thereby the method for realization MP3 song and animation in synchronization playing function.
Present embodiment utilizes the architecture of MP3 standard I D3V2, in the MP3 document, insert the concordance list of animation and the corresponding MP3 data content of animation position, or insert the path at this data place, so just can be when playing MP3, the animation frame of synchronous playing current song paragraph correspondence, this form can be described as MP3MTV, and animation, music are organically combined, and realizes the synchronous playing function of animation and MP3 sound.Because the file after handling is still the MP3 format file of standard, so do not influence its versatility, do not influence the broadcast of other universal player, just added the content of own needs, make MP3MTVplayer of the present invention can accomplish the synchronous playing of sound and animation.
Claims (8)
1, a kind of MP3 playback equipment with multifile synchronous playing function is characterized in that: this equipment comprises and is used for the central processing unit of centralized control data transmission and signal Processing; Be used to provide the communication interface of data input and output; Be used for the storage device of store files data; Be used for tone decoder with DAB decoding; Be used for the display of display video image; Be used for the loudspeaker of playing audio signal; Be used for controlling the simultaneously playing device of the synchronous playing of multifile, this simultaneously playing device comprises that the synchronization frame that is used for according to a plurality of files generates the synchronous message generation module of synchronous message and is used for synchronous playing control module according to a plurality of files of synchronous message synchronous playing; Described synchronous message generation module comprises the monitoring unit that is used for detecting the synchronous start frame that the user chooses hereof, be used for the synchronous start frame between a plurality of files is set related setup unit, be used for that this incidence relation is generated contingency table and be stored in storage element in main broadcaster's file; Described synchronous playing control module also comprises the resolution unit that is used for analyzing this association message; Be used for resetting according to a plurality of files of the directed synchronous playing of this association message to the unit.
2, the MP3 playback equipment with multifile synchronous playing function according to claim 1, it is characterized in that: described communication interface is a USB interface.
3, a kind of realization as claimed in claim 1 has the synchronous message generation method of the MP3 playback equipment of multifile synchronous playing function, and it is characterized in that: this method may further comprise the steps:
1) definition synchronization frame data structure in MP3 ID3V2 file header;
2) in main broadcaster's file and setting synchronization frame association from broadcast file synchronously thereof;
2.1), play this main broadcaster's file and from broadcasting file;
2.2), need in main broadcaster's file, to select the start frame of synchronous playing;
2.3), at start frame that need from broadcast file, to select synchronous playing;
2.4), set main broadcaster's file and start frame from broadcast file related;
3) generate synchronisation offset according to this association;
4) generate synchronous message according to this side-play amount;
5) deposit this synchronous message in this main broadcaster's file according to this document head form.
4, realization as claimed in claim 1 according to claim 3 has the synchronous message generation method of the MP3 playback equipment of multifile synchronous playing function, it is characterized in that: described ID3V2 file header synchronization frame data structure, this structure comprise the frameid of the MP3 structure type definition of expression ID3V2 form; The Long ID of the MP3 structural key speech definition of expression ID3V2 form; The Short ID of the MP3 structural key speech definition of expression ID3V2 form; The Tag discrd of the description character of the MP3 header structure of expression ID3V2 form; The Fielddiscrd of the description character of field unit in the MP3 header structure of expression ID3V2 form; The Field defs of the type definition of field unit in the MP3 header structure of expression ID3V2 form; The Descriptions of the type specification character of field unit in the MP3 header structure of expression ID3V2 form.
5, realization as claimed in claim 1 according to claim 3 has the synchronous message generation method of the MP3 playback equipment of multifile synchronous playing function, and it is characterized in that: described step 2) concrete steps are as follows:
2-1) play this main broadcaster's file and from broadcasting file;
2-2) need in main broadcaster's file, to select the start frame of synchronous playing;
2-3) at start frame that from broadcast file, need to select synchronous playing;
2-4) set main broadcaster's file and the start frame from broadcast file related.
6, realization as claimed in claim 1 according to claim 3 has the synchronous message generation method of the MP3 playback equipment of multifile synchronous playing function, it is characterized in that: described main broadcaster's file is the MP3 music file, is animation file from broadcasting file.
7, a kind of synchronous broadcast method with MP3 playback equipment of multifile synchronous playing function as claimed in claim 1, it is characterized in that: this method may further comprise the steps:
1) reads MP3 ID3V2 file header data;
2) be complementary according to this document head data and MP3 format file: obtain MP3 song frame type according to the ID3V2 form, and obtain keyword according to frame type and mate with the MP3 song formats, if coupling just begins parsing animation in synchronization message and MP3 music message from song files;
3) file with coupling is made as main broadcaster's file;
4) play this main broadcaster's file and also therefrom read synchronous message: in songs playing process, obtain the song message related with synchronous message, by song message, synchronous message music message and animation information are associated, according to synchronous message, by resetting to the cell location synchronous broadcast document;
5) according to this synchronous message of synchronous message synchronous playing point to from broadcasting file.
8, the synchronous broadcast method with MP3 playback equipment of multifile synchronous playing function as claimed in claim 1 according to claim 7, it is characterized in that: described main broadcaster's file is the MP3 music file, is animation file from broadcasting file.
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| CNB200410025953XA CN100549987C (en) | 2004-03-16 | 2004-03-16 | MP3 playback equipment and method thereof with multifile synchronous playing function |
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| CNB200410025953XA CN100549987C (en) | 2004-03-16 | 2004-03-16 | MP3 playback equipment and method thereof with multifile synchronous playing function |
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| WO2008073083A1 (en) * | 2006-12-12 | 2008-06-19 | Thomson Licensing | Method and system for subframe accurate synchronization |
| CN103713875B (en) * | 2013-12-30 | 2017-06-06 | 郭磊 | The method of playback digital music Chinese version information |
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