CN103699584A - Terminal playing method and system - Google Patents

Terminal playing method and system Download PDF

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Publication number
CN103699584A
CN103699584A CN201310655100.3A CN201310655100A CN103699584A CN 103699584 A CN103699584 A CN 103699584A CN 201310655100 A CN201310655100 A CN 201310655100A CN 103699584 A CN103699584 A CN 103699584A
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China
Prior art keywords
terminal
playlist
appointed area
memory storage
external memory
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CN201310655100.3A
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CN103699584B (en
Inventor
游磊青
付灵军
王玲
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Fujian Star Net eVideo Information Systems Co Ltd
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Fujian Star Net eVideo Information Systems Co Ltd
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Priority to CN201310655100.3A priority Critical patent/CN103699584B/en
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Publication of CN103699584B publication Critical patent/CN103699584B/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/458Scheduling content for creating a personalised stream, e.g. by combining a locally stored advertisement with an incoming stream; Updating operations, e.g. for OS modules ; time-related management operations
    • H04N21/4586Content update operation triggered locally, e.g. by comparing the version of software modules in a DVB carousel to the version stored locally
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs

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  • Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)

Abstract

The invention provides a terminal playing method. The method comprises the steps of copying a material in an outer memory to a terminal; analyzing the playing list of the terminal, and determining an appointed area for playing according to the property set by the playing list; creating and updating a new playing list segment to the playing list according to the material and the appointed area, and playing contents by the terminal according to the updated playing list. The invention further provides a terminal playing system, which can solve the problem that the terminal cannot be used in an off-line state, and additionally meet the condition that the playing condition of the terminal is controlled by a filed person in an appointed area in a multi-split screen, so that the requirements of a customer can be met.

Description

A kind of terminal playing method and system
Technical field
The present invention relates to communication apparatus technical field, relate in particular to a kind of terminal playing method and system.
Background technology
Existing networking version terminal can only issue playing task customization play content by managerial personnel by network platform unification under networking situation, and this telemanagement exists some problems:
1, without using under network condition;
2, underaction, all terminal plays contents, by the telemanagement of keeper's login management platform, can not independently be controlled by each point;
3, the play content in certain region of control terminal separately.
Summary of the invention
One of the technical problem to be solved in the present invention, is to provide a kind of terminal playing method, can solve the problem that cannot use under terminal off-line state, also can meet in addition terminal and can by field staff, control broadcasting situation in appointed area in many split screens situation; Thereby meet client's demand.
One of problem of the present invention is achieved in that a kind of terminal playing method,
Copy material in external memory storage to terminal;
Resolve the playlist of terminal, according to the attribute of playlist setting, determine the appointed area that will play;
According to material and appointed area, create new playlist fragment and be updated in playlist, terminal is according to the playlist play content after upgrading.
Two of the technical problem to be solved in the present invention, is to provide a kind of terminal plays system, can solve the problem that cannot use under terminal off-line state, also can meet in addition terminal and can by field staff, control broadcasting situation in appointed area in many split screens situation; Thereby meet client's demand.
Two of problem of the present invention is achieved in that a kind of terminal plays system, and described system comprises: load module, parsing module and playing module;
Described load module: for the material that copies external memory storage to terminal;
Described parsing module: resolve the playlist of terminal, determine the appointed area that will play according to the attribute of playlist setting;
Described playing module: create new playlist fragment and be updated in playlist according to material and appointed area, terminal is according to the playlist play content after upgrading.
Tool of the present invention has the following advantages: the present invention determines according to the attribute of local playlist setting the appointed area that terminal will be play, and this appointed area can be the full frame region of the external memory storage broadcast area of terminal, the main broadcast area of terminal or terminal; The present invention can solve the problem that terminal cannot be used under off-line state, also can meet in addition terminal and can by field staff, control broadcasting situation in appointed area in many split screens situation; Thereby meet client's demand.
Accompanying drawing explanation
Fig. 1 is the inventive method schematic flow sheet.
Fig. 2 is the structured flowchart of system of the present invention.
Embodiment
Refer to shown in Fig. 1,1, a kind of terminal playing method,
Copy material in external memory storage to terminal; This external memory storage can be USB flash disk, SD card, DOM card, Nand Falsh, CF card etc. memory device;
Resolve the playlist of terminal, according to the attribute of playlist setting, determine the appointed area that will play;
According to material and appointed area, create new playlist fragment and be updated in playlist, terminal is according to the playlist play content after upgrading.
The method further comprises the steps:
Step 10, the material that will play copy under external memory storage one catalogue; Described external memory storage one catalogue is the catalogue of the free routing set up under external memory storage root directory or external memory storage root directory;
Step 1, the external memory storage with material is inserted into terminal;
Under step 2, terminal judges external memory storage one catalogue, whether material can identify (material that can identify comprises: text, picture, video, audio frequency, pdf, ppt, swf), copies the disk directory that the material that can identify arrives terminal; Described material comprise following at least one: text, picture, video/audio, pdf, ppt or swf;
The playlist playlist.xml(of step 3, terminal parses this locality is the playlist of terminal this locality), according to the attribute of local playlist setting, determine the appointed area that terminal will be play; According to material and appointed area, create new playlist fragment (creating new playlist fragment in the internal memory of terminal) and be updated in local playlist playlist.xml, terminal is according to the playlist play content after upgrading;
When step 4, the state before the play content of terminal will return to renewal, insert the empty external memory storage without any file;
Whether the appointed area that step 5, terminal detect in current playlist was updated, was, the play content of recovering appointed area is the state before step 2; No, do not operate.
Wherein, described step 2 is specially:
The catalogue of step 21, terminal scanning external memory storage, reads a directory entry under catalogue;
Whether the directory entry that step 22, judgement read is empty, is, the All Files end of scan; And enter step 27, and no, enter step 23;
Whether the catalogue that the directory entry that step 23, judgement read points to is file; To return to step 21; No, enter step 24;
Whether the catalogue that the directory entry that step 24, judgement read points to is effective text; That the md5 value that obtains text file is added in terminal internal memory in the static chained list TXT_LIST of a text; For assembly terminal task, and return to step 21; No, enter step 25;
Whether the catalogue that the directory entry that step 25, judgement read points to is effective picture; That the md5 value that obtains this picture is added in a picture static chain Table I MG_LIST; For assembly terminal task, and return to step 21; No, enter step 26;
Whether the catalogue that the directory entry that step 26, judgement read points to is effective video; That the md5 value that obtains this video is added in a video static chain Table VI DEO_LIST; For assembly terminal task, and return to step 21; No, directly return to step 21;
Step 27, according to the md5 value coupling material recording in the static chained list of text, the static chained list of picture and the static chained list of video (being that material corresponding to md5 in each chained list comprises: text, picture and video), copy the disk directory that material arrives terminal.
Described step 3 is specially:
Whether the playlist playlist.xml of step 31, parsing terminal this locality was upgraded by external memory storage, no, copy the playlist bak_playlist.xml of local backup that local playlist playlist.xml replaces terminal for recovering the task of terminal; To enter step 32;
Whether step 32, resolve the attribute of the playlist bak_playlist.xml of local backup, judging terminal has task (whether having task is to arrange in the attribute of the playlist bak_playlist.xml of local backup; Be whether to have " unit " node in the attribute of playlist bak_playlist.xml), be to enter step 33; No, enter step 36;
Whether the playlist bak_playlist.xml of step 33, parsing local backup is provided with " external memory storage broadcast area ", is the external memory storage broadcast area of setting to be set as to appointed area; And read the information in appointed area, enter step 34; No, the main broadcast area in terminal is set as to appointed area, and reads the information in appointed area, enter step 35;
The Information generation task data of step 34, the static chained list of use text, the static chained list of picture and appointed area obtains playlist fragment usb_playlist.xml, and this playlist fragment usb_playlist.xml is for depositing according to the interim playlist of the attribute generation of material, appointment broadcast area; And enter step 37;
Step 35, use the Information generation task data of the static chained list of text, the static chained list of picture and appointed area to replace playlist fragment usb_playlist.xml, and use the static chained list of video to increase video task for appointed area; And enter step 37;
Step 36, the full frame region in terminal is set as to appointed area, and uses the static chained list of text, the static chained list of picture, video static chain table to generate task data and replace playlist fragment usb_playlist.xml, enter step 37;
Step 37, appointed area is labeled as to external memory storage upgrades, and upgrade appointed area, the task data that the replacement of appointed area after upgrading completes is play as play content.
Step 5 is specially: whether the appointed area that described terminal detects in current playlist was updated, is, the playlist bak_playlist.xml of copy backup replaces local playlist playlist.xml, thereby recovers playlist; No, by external memory storage, do not upgraded, do not need to recover playlist.
Here it should be noted that:
Terminal can be upgraded USB flash disk material, and its renewal process is:
1, USB flash disk detected, analyze USB flash disk material situation:
1. carry USB flash disk failure, exits USB flash disk module
2. material is substandard, exits and points out without available material
3. empty USB flash disk, recovers the task judgement of USB flash disk district
4. material is renewable, upgrades USB flash disk district task
2. material specification detects:
1. detect and do not support material, return to prompting without available material;
2. support material detected, prompting USB flash disk material upgrades, and occurs the progress bar (for showing the progress situation of renewal) of renewal;
3. upgrade USB flash disk district task:
1. create USB flash disk playlist, if created unsuccessfully, prompting mistake is extracted USB flash disk;
2. calculate disk free space, if Insufficient disk space, prompting mistake is extracted USB flash disk;
3. upgrade playlist;
4. notice scheduling is upgraded, and starts to play.
Refer to shown in Fig. 2, a kind of terminal plays system, described system comprises: load module, parsing module, playing module, replication module, insert module and detection module;
Described replication module: the material that will play copies under external memory storage one catalogue; Described external memory storage one catalogue is the catalogue of the free routing set up under external memory storage root directory or external memory storage root directory; Described material comprise following at least one: text, picture or video;
Described load module: for the material that copies external memory storage to terminal; This external memory storage can be USB flash disk, SD card, DOM card, Nand Falsh, CF card etc. memory device; This load module is specially:
External memory storage with material is inserted into terminal;
Under terminal judges external memory storage one catalogue, whether material can identify (material that can identify comprises: text, picture, video, audio frequency, pdf, ppt, swf), copies the disk directory that the material that can identify arrives terminal;
Described parsing module: resolve the playlist playlist.xml of terminal, determine the appointed area that will play according to the attribute of playlist setting;
Described playing module: create new playlist fragment usb_playlist.xml and be updated in local playlist playlist.xml according to material and appointed area, terminal is according to the playlist play content after upgrading.
Described insert module: during state before the play content of terminal will return to renewal, insert the empty external memory storage without any file;
Described detection module: whether the appointed area that terminal detects in current playlist playlist.xml was updated, was, recovers the play content of appointed area for carrying out parsing module state before; No, do not operate.
Wherein, the operation of described parsing module is specially:
The catalogue of step 41, terminal scanning external memory storage, reads a directory entry under catalogue;
Whether the directory entry that step 42, judgement read is empty, is, the All Files end of scan; And enter step 47, and no, enter step 43;
Whether the catalogue that the directory entry that step 43, judgement read points to is file; To return to step 41; No, enter step 44;
Whether the catalogue that the directory entry that step 44, judgement read points to is effective text; That the md5 value that obtains text file is added in the static chained list TXT_LIST of a text; And return to step 41; No, enter step 45;
Whether the catalogue that the directory entry that step 45, judgement read points to is effective picture; That the md5 value that obtains this picture is added in a picture static chain Table I MG_LIST; And return to step 41; No, enter step 46;
Whether the catalogue that the directory entry that step 46, judgement read points to is effective video; That the md5 value that obtains this video is added in a video static chain Table VI DEO_LIST; And return to step 41; No, directly return to step 41;
Step 47, according to the md5 value coupling material recording in the static chained list of text, the static chained list of picture and the static chained list of video (being that material corresponding to md5 in each chained list comprises: text, picture and video), copy the disk directory that material arrives terminal.
The operation of described playing module is specially:
Whether the playlist playlist.xml of step 51, parsing terminal this locality was upgraded by external memory storage, no, copy the playlist bak_playlist.xml of local backup that local playlist playlist.xml replaces terminal for recovering the task of terminal; To enter step 52;
The attribute of the playlist bak_playlist.xml of step 52, parsing local backup, judges whether terminal has task, is, enters step 53; No, enter step 56;
Whether the playlist bak_playlist.xml of step 53, parsing local backup is provided with " external memory storage broadcast area ", is the external memory storage broadcast area of setting to be set as to appointed area; And read the information in appointed area, enter step 54; No, the main broadcast area in terminal is set as to appointed area, and reads the information in appointed area, enter step 55;
The Information generation task data of step 54, the static chained list of use text, the static chained list of picture and appointed area obtains playlist fragment usb_playlist.xml, and this playlist fragment usb_playlist.xml is for depositing according to the interim playlist of the attribute generation of material, appointment broadcast area; And enter step 57;
Step 55, use the Information generation task data of the static chained list of text, the static chained list of picture and appointed area to replace playlist fragment usb_playlist.xml, and use the static chained list of video to increase video task for appointed area; And enter step 57;
Step 56, the full frame region in terminal is set as to appointed area, and uses the static chained list of text, the static chained list of picture, video static chain table to generate task data and replace playlist fragment usb_playlist.xml, enter step 57;
Step 57, appointed area is labeled as to external memory storage upgrades, and upgrade appointed area, the task data that the replacement of appointed area after upgrading completes is play as play content.
In addition, the operation of described detection module is specially:
Whether the appointed area that described terminal detects in current playlist was updated, was, the playlist bak_playlist.xml of copy backup replaces local playlist playlist.xml, thereby recovered playlist; No, by external memory storage, do not upgraded, do not need to recover playlist.
Here it should be noted that:
Terminal can be upgraded USB flash disk material, and its renewal process is:
1, USB flash disk detected, analyze USB flash disk material situation:
1. carry USB flash disk failure, exits USB flash disk module
2. material is substandard, exits and points out without available material
3. empty USB flash disk, recovers the task judgement of USB flash disk district
4. material is renewable, upgrades USB flash disk district task
2. material specification detects:
1. detect and do not support material, return to prompting without available material;
2. support material detected, prompting USB flash disk material upgrades, and occurs the progress bar (for showing the progress situation of renewal) of renewal;
3. upgrade USB flash disk district task:
1. create USB flash disk playlist, if created unsuccessfully, prompting mistake is extracted USB flash disk;
2. calculate disk free space, if Insufficient disk space, prompting mistake is extracted USB flash disk;
3. upgrade playlist;
4. notice scheduling is upgraded, and starts to play.
In a word, the present invention determines according to the attribute of local playlist setting the appointed area that terminal will be play, and this appointed area can be the full frame region of the external memory storage broadcast area of terminal, the main broadcast area of terminal or terminal; The present invention can solve the problem that terminal cannot be used under off-line state, also can meet in addition terminal and can by field staff, control broadcasting situation in appointed area in many split screens situation; Thereby meet client's demand.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.

Claims (16)

1. a terminal playing method, is characterized in that:
Copy material in external memory storage to terminal;
Resolve the playlist of terminal, according to the attribute of playlist setting, determine the appointed area that will play;
According to material and appointed area, create new playlist fragment and be updated in playlist, terminal is according to the playlist play content after upgrading.
2. a kind of terminal playing method according to claim 1, is characterized in that, described method further comprises the steps:
Step 1, the external memory storage with material is inserted into terminal;
Under step 2, terminal judges external memory storage one catalogue, whether material can be identified, and copies the disk directory that the material that can identify arrives terminal;
The playlist of step 3, terminal parses this locality, determines according to the attribute of local playlist setting the appointed area that terminal will be play; According to material and appointed area, create new playlist fragment and be updated in playlist, terminal is according to the playlist play content after upgrading.
3. a kind of terminal playing method according to claim 1, is characterized in that: described material comprise following at least one: text, picture or video.
4. a kind of terminal playing method according to claim 2, is characterized in that: before described step 1, also comprise:
Step 10, the material that will play copy under external memory storage one catalogue; Described external memory storage one catalogue is the catalogue of the free routing set up under external memory storage root directory or external memory storage root directory.
5. a kind of terminal playing method according to claim 2, is characterized in that: after described step 3, also comprise:
When step 4, the state before the play content of terminal will return to renewal, insert the empty external memory storage without any file;
Whether the appointed area that step 5, terminal detect in current playlist was updated, was, the play content of recovering appointed area is the state before step 2; No, do not operate.
6. a kind of terminal playing method according to claim 2, is characterized in that: described step 2 is specially:
The catalogue of step 21, terminal scanning external memory storage, reads a directory entry under catalogue;
Whether the directory entry that step 22, judgement read is empty, is, the All Files end of scan; And enter step 27, and no, enter step 23;
Whether the catalogue that the directory entry that step 23, judgement read points to is file; To return to step 21; No, enter step 24;
Whether the catalogue that the directory entry that step 24, judgement read points to is effective text; That the md5 value that obtains text file is added in the static chained list of a text; And return to step 21; No, enter step 25;
Whether the catalogue that the directory entry that step 25, judgement read points to is effective picture; That the md5 value that obtains this picture is added in the static chained list of a picture; And return to step 21; No, enter step 26;
Whether the catalogue that the directory entry that step 26, judgement read points to is effective video; That the md5 value that obtains this video is added in the static chained list of a video; And return to step 21; No, directly return to step 21;
Step 27, according to the md5 value coupling material recording in the static chained list of text, the static chained list of picture and the static chained list of video, copy the disk directory that material arrives terminal.
7. a kind of terminal playing method according to claim 6, is characterized in that: described step 3 is specially:
Whether step 31, the playlist of resolving terminal this locality were upgraded by external memory storage, no, copied the playlist of local backup that local playlist replaces terminal for recovering the task of terminal; To enter step 32;
The attribute of the playlist of step 32, parsing local backup, judges whether terminal has task, is, enters step 33; No, enter step 36;
Whether the playlist of step 33, parsing local backup is provided with " external memory storage broadcast area ", is the external memory storage broadcast area of setting to be set as to appointed area; And read the information in appointed area, enter step 34; No, the main broadcast area in terminal is set as to appointed area, and reads the information in appointed area, enter step 35;
The Information generation task data of step 34, the static chained list of use text, the static chained list of picture and appointed area obtains playlist fragment, and this playlist fragment is for depositing according to the interim playlist of the attribute generation of material, appointment broadcast area; And enter step 37;
Step 35, use the Information generation task data of the static chained list of text, the static chained list of picture and appointed area to replace playlist fragment, and use the static chained list of video to increase video task for appointed area; And enter step 37;
Step 36, the full frame region in terminal is set as to appointed area, and uses the static chained list of text, the static chained list of picture, video static chain table to generate task data and replace playlist fragment, enter step 37;
Step 37, appointed area is labeled as to external memory storage upgrades, and upgrade appointed area, the task data that the replacement of appointed area after upgrading completes is play as play content.
8. a kind of terminal playing method according to claim 7, is characterized in that: step 5 is specially:
Whether the appointed area that described terminal detects in current playlist was updated, was, the playlist of copy backup is replaced local playlist, thereby recovered playlist; No, by external memory storage, do not upgraded, do not need to recover playlist.
9. a terminal plays system, is characterized in that: described system comprises: load module, parsing module and playing module;
Described load module: for the material that copies external memory storage to terminal;
Described parsing module: resolve the playlist of terminal, determine the appointed area that will play according to the attribute of playlist setting;
Described playing module: create new playlist fragment and be updated in playlist according to material and appointed area, terminal is according to the playlist play content after upgrading.
10. a kind of terminal plays system according to claim 9, is characterized in that, the operation of described load module is specially:
External memory storage with material is inserted into terminal;
Under terminal judges external memory storage one catalogue, whether material can be identified, and copies the disk directory that the material that can identify arrives terminal.
11. a kind of terminal plays systems according to claim 9, is characterized in that: described material comprise following at least one: text, picture or video.
12. a kind of terminal plays systems according to claim 10, is characterized in that: described system also comprises replication module,
Described replication module: the material that will play copies under external memory storage one catalogue; Described external memory storage one catalogue is the catalogue of the free routing set up under external memory storage root directory or external memory storage root directory.
13. a kind of terminal plays systems according to claim 10, is characterized in that: described system also comprises insert module and detection module;
Described insert module: during state before the play content of terminal will return to renewal, insert the empty external memory storage without any file;
Described detection module: whether the appointed area that terminal detects in current playlist was updated, was, recovers the play content of appointed area for carrying out parsing module state before; No, do not operate.
14. a kind of terminal plays systems according to claim 10, is characterized in that: the operation of described parsing module is specially:
The catalogue of step 41, terminal scanning external memory storage, reads a directory entry under catalogue;
Whether the directory entry that step 42, judgement read is empty, is, the All Files end of scan; And enter step 47, and no, enter step 43;
Whether the catalogue that the directory entry that step 43, judgement read points to is file; To return to step 41; No, enter step 44;
Whether the catalogue that the directory entry that step 44, judgement read points to is effective text; That the md5 value that obtains text file is added in the static chained list of a text; And return to step 41; No, enter step 45;
Whether the catalogue that the directory entry that step 45, judgement read points to is effective picture; That the md5 value that obtains this picture is added in the static chained list of a picture; And return to step 41; No, enter step 46;
Whether the catalogue that the directory entry that step 46, judgement read points to is effective video; That the md5 value that obtains this video is added in the static chained list of a video; And return to step 41; No, directly return to step 41;
Step 47, according to the md5 value coupling material recording in the static chained list of text, the static chained list of picture and the static chained list of video, copy the disk directory that material arrives terminal.
15. a kind of terminal plays systems according to claim 14, is characterized in that: the operation of described playing module is specially:
Whether step 51, the playlist of resolving terminal this locality were upgraded by external memory storage, no, copied the playlist of local backup that local playlist replaces terminal for recovering the task of terminal; To enter step 52;
The attribute of the playlist of step 52, parsing local backup, judges whether terminal has task, is, enters step 53; No, enter step 56;
Whether the playlist of step 53, parsing local backup is provided with " external memory storage broadcast area ", is the external memory storage broadcast area of setting to be set as to appointed area; And read the information in appointed area, enter step 54; No, the main broadcast area in terminal is set as to appointed area, and reads the information in appointed area, enter step 55;
The Information generation task data of step 54, the static chained list of use text, the static chained list of picture and appointed area obtains playlist fragment, and this playlist fragment is for depositing according to the interim playlist of the attribute generation of material, appointment broadcast area; And enter step 57;
Step 55, use the Information generation task data of the static chained list of text, the static chained list of picture and appointed area to replace playlist fragment, and use the static chained list of video to increase video task for appointed area; And enter step 57;
Step 56, the full frame region in terminal is set as to appointed area, and uses the static chained list of text, the static chained list of picture, video static chain table to generate task data and replace playlist fragment, enter step 57;
Step 57, appointed area is labeled as to external memory storage upgrades, and upgrade appointed area, the task data that the replacement of appointed area after upgrading completes is play as play content.
16. a kind of terminal plays systems according to claim 15, is characterized in that: the operation of described detection module is specially:
Whether the appointed area that described terminal detects in current playlist was updated, was, the playlist of copy backup is replaced local playlist, thereby recovered playlist; No, by external memory storage, do not upgraded, do not need to recover playlist.
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Cited By (1)

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CN108111917A (en) * 2017-12-18 2018-06-01 北京双旗世纪科技有限公司 Smart electronics guidance method, device and smart electronics oriented identification equipment

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