WO2011032366A1 - 基于直播录制的视频点播方法及系统 - Google Patents

基于直播录制的视频点播方法及系统 Download PDF

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Publication number
WO2011032366A1
WO2011032366A1 PCT/CN2010/070374 CN2010070374W WO2011032366A1 WO 2011032366 A1 WO2011032366 A1 WO 2011032366A1 CN 2010070374 W CN2010070374 W CN 2010070374W WO 2011032366 A1 WO2011032366 A1 WO 2011032366A1
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Prior art keywords
program
list
media file
server
epg
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PCT/CN2010/070374
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English (en)
French (fr)
Inventor
刘大维
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深圳市同洲电子股份有限公司
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Publication of WO2011032366A1 publication Critical patent/WO2011032366A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/16Analogue secrecy systems; Analogue subscription systems
    • H04N7/162Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/163Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/21Server components or server architectures
    • H04N21/218Source of audio or video content, e.g. local disk arrays
    • H04N21/2187Live feed
    • 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
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/433Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4334Recording operations
    • 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
    • H04N21/47End-user applications
    • H04N21/472End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47202End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/76Television signal recording
    • H04N5/765Interface circuits between an apparatus for recording and another apparatus
    • H04N5/775Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television receiver

Definitions

  • the present invention relates to video on demand technology, and more particularly to a video on demand method and system based on live recording.
  • FIG. 1 the video on-demand method based on live recording is shown in FIG. 1 , and the method includes the following steps:
  • Step 101 The program production partition records the live program according to the original program list, and stores the media file of each program.
  • the original program list is a pre-set program list before the live broadcast.
  • the original program list mainly records the start time, the deadline, the channel to which the program is to be played, and the program name. This step records the live program according to the original program list.
  • Step 102 The program production section publishes the original program list to an Electronic Program Guide (EPG), and the EPG is displayed to the user by the set top box.
  • EPG Electronic Program Guide
  • Step 103 The user browses the EPG, selects a program requested to be played, and sends an on-demand command including the program requested to be played to the program production zone through the set top box.
  • Step 104 After receiving the on-demand command, the program production area queries the media file of the program to be played from the media file stored in step 101, sends the media file to the set-top box, and plays the content through the set-top box.
  • the information of each program included in the original program list is pre-recorded information about the live program. Since the live program is bursty, during the live broadcast, there may be cases where the original program list cannot be played, for example, according to the original.
  • the actual program recorded on the program list has a lot of advertisements and the like, which causes the original program list to record the start time of the program is inaccurate; for example, the program recorded according to the program list has many advertisements and the like, which leads to the original program record record.
  • the deadline for the program is not accurate; for example, certain programs on the original program list may be cancelled, resulting in inaccurate records on the original program listing about the program. Since the program information recorded in the original program list is inaccurate, correspondingly, it will result in The program information recorded in the EPG displayed to the user in step 102 is inaccurate.
  • step 103 the user browses the EPG, and searches for the program requested to be played. Because the program information displayed by the EPG in the prior art is not classified, the search is inconvenient, and the search workload of the user is increased.
  • the existing video-on-demand method based on live recording has the following disadvantages:
  • the program information displayed by the EPG is inaccurate, and the classified program information cannot be provided, which is inconvenient for the user to find the desired program.
  • the invention provides a video on demand method based on live recording, which can provide accurate and classified program information.
  • the present invention provides a video on demand system based on live recording, which is capable of providing accurate, classified program information.
  • the present invention provides a program production partition that provides accurate, classified program information.
  • a video on demand method based on live recording comprising:
  • the EPG is transmitted to the set top box
  • the on-demand command sent by the receiver set-top box containing the program to be played, the program requested to be played is selected by the user from a list of programs of the EPG; and the media of the program requested to be played is queried from the cached media file.
  • the file is sent to the set-top box for playback.
  • a video on demand system based on live recording includes each program production partition and a set top box, and each program production partition includes a recording server, a program production workstation, a program classification management server, a database, a program information acquisition server, and a program distribution server;
  • the recording server is configured to record a live program and store a media file of each program
  • the program production workstation is configured to generate a program list for all the recorded programs according to the media files of the respective programs stored by the recording server, and send the program list to the program classification management server;
  • the program classification management server sets matching conditions of each category, classifies programs included in the program list according to matching conditions of each category, and generates a program list corresponding to each category, and stores them in a database, and the database is
  • the program list stored in the program is sent to the program information acquisition server;
  • the program information obtaining server is configured to obtain, according to the received program list sent by the program classification management server, a media file of the corresponding program in the recording server, and receive the program publishing server for the obtained media server.
  • the sent EPG is transmitted to the set top box; the on-demand command sent by the receiver set-top box containing the program to be played, the media file of the program to be played is queried from the cached media file, and sent to the set-top box;
  • the program distribution server is configured to receive a program list sent by the program information acquisition server, publish the program list to the EPG, and transmit the EPG to the program information acquisition server;
  • the set top box is configured to receive an EPG sent by the program information obtaining server, and display it to a user; receive a program requested by the user to select a program selected from a certain classified program list of the EPG, and send the program to the program information acquiring server.
  • a video on demand system based on live recording includes a program production center, each program production partition and a set top box, and the program production center includes a central recording server, a central program production workstation, a central program classification management server, and a central database;
  • the central recording server is configured to record a live program of a live broadcast and store media files of each universal program
  • the central program production workstation is configured to generate, according to the media files of the universal programs stored by the central recording server, a first program list for all the universal programs recorded, and send the first program list to the central program classification management.
  • Each program production partition is configured to record the live broadcast program and store the recorded media file; obtain the first program list from the central program classification management server, and generate the first program list according to the stored media file And outputting, to the central program classification management server, a second program list for recording a program other than the program included in the first program list; each program production partition is further classified by the central program
  • the management server acquires a list of programs stored in the central database;
  • the central program classification management server transmits the first program list sent by the central program production workstation to each program production partition; sets a matching condition of each category, and matches the first program list according to the matching condition of each category
  • the included program and the programs included in each second program list uploaded by each program production partition are uniformly classified, and a program list is generated for each category, and stored in a central database; the program stored in the central database is requested according to the request initiated by each program creation partition.
  • the list is transmitted to the corresponding program production partition;
  • Each program production partition further acquires a media file of the corresponding program in the stored media file according to the received program list, and caches the obtained media file; and publishes a program list including the program obtained by acquiring the media file to the electronic program menu.
  • the EPG is transmitted to the set top box; the on-demand command sent by the receiver set-top box containing the program to be played, the media file of the program to be played is queried from the cached media file, and sent to the set-top box;
  • the set top box is configured to receive an EPG sent by each program production partition and display it to a user; receive a program requested by the user to select a program selected from a certain classified program list of the EPG, and send the request to the corresponding program production partition to include the request to play On-demand commands for programs; receive and play media files sent by individual program production zones.
  • a program production partition includes a recording server, a program production workstation, a program classification management server, a database, a program information acquisition server, and a program distribution server;
  • the recording server is configured to record a live program and store a media file of each program
  • the program production workstation is configured to generate a program list for all the recorded programs according to the media files of the respective programs stored by the recording server, and send the program list to the program classification management server;
  • the program classification management server sets matching conditions of each category, classifies programs included in the program list according to matching conditions of each category, and generates a program list corresponding to each category, and stores them in a database, and the database is
  • the program list stored in the program is sent to the program information acquisition server;
  • the program information obtaining server is configured to obtain, according to the received program list sent by the program classification management server, a media file of the corresponding program in the recording server, and receive the program publishing server for the obtained media server.
  • the sent EPG is transmitted to the set top box;
  • the on-demand command sent by the receiver set-top box containing the program to be played, the program requested to be played is selected by the user from a list of programs of the EPG, the program information acquisition server Querying the media file of the program requested to be played in the cached media file, and sending the media file to the set top box;
  • the program distribution server is configured to receive a program list sent by the program information acquisition server, publish the program list to the EPG, and transmit the EPG to the program information acquisition server.
  • the live broadcast program is first recorded, the media files of the respective programs are stored, and then the program list for all the recorded programs is generated according to the stored media files of the respective programs; thus, the prior art is avoided.
  • the program listing that appears contains inaccurate program information.
  • the present invention further provides a scheme for classifying a program list, including: classifying a program included in a program list according to a matching condition set for each category, respectively generating a program list corresponding to each category, and storing the program list according to the program list Obtaining the media file of the corresponding program in the media file of each program, and buffering the obtained media file; publishing the program obtained by the respective program list to the electronic program menu EPG, and displaying the EPG to the user by the set top box; receiving The on-demand command sent by the set-top box and including the program to be played, the program requested to be played is selected by the user from a list of programs of the EPG; and the media file of the program to be played is queried from the cached media file. , sent to the set-top box for playback.
  • the program information provided by the user is provided by the solution of the present invention, so that it is convenient to find the desired program.
  • FIG. 1 is a flowchart of a video on demand method based on live recording in the prior art
  • FIG. 2 is an exemplary flowchart of a video on demand method based on live recording according to the present invention
  • FIG. 4 is an example of a flowchart of a method for generating a program list according to the present invention.
  • FIG. 5 is a schematic diagram of a relationship between matching conditions, classifications, and program listings in the present invention
  • FIG. 6 is a flowchart of a method for assisting each program production partition to perform video on demand by a program production center according to the present invention
  • FIG. 7 is a schematic structural diagram of a video on demand system based on live broadcast recording according to the present invention.
  • the present invention records the live broadcast program, stores the recorded media files of each program, sorts them according to the deposit list, and displays them to the user through the set top box. In this way, not only accurate program information can be provided; but also the classified program information can be provided, which facilitates the user to find a desired program and improves the search efficiency.
  • the video on demand method based on live recording specifically includes: recording a live broadcast program, storing media files of each program; generating a program list according to the stored media files of each program, and including the program list according to the set matching condition for each category; The program is classified, and a program list is generated corresponding to each category; according to the program list, the media file of the corresponding program is obtained in the stored media file, and cached; and the program list including the program information acquired in the media file is posted to the electronic a program menu EPG, transmitting the EPG to the set top box; an on-demand command sent by the receiver set-top box containing the program to be played, the program requested to be played is selected by the user from a list of programs of the EPG; from the cached media file The media file of the program requested to be played is queried and sent to the set top box for playing.
  • FIG. 2 The video on-demand method based on live recording according to the present invention will be described in detail below with reference to FIG. 2, which includes the following steps:
  • Step 201 The program production section records the live broadcast program, and stores the media files of each program.
  • the program production zone records the live broadcast program and stores it.
  • the format of the stored media file can be in the TS (Transport Stream) format.
  • the media file is also called the TS file.
  • the media files are stored continuously.
  • the size of each TS file can be specified. For example, each TS file can be specified as 512M. See Table 1 for n TS files stored one by one: TS file 1 ⁇ TS file n. This allows you to store a day or a few live shows in the production section to prepare for video on demand.
  • TS file 1 Transport Stream
  • the program list mainly records the start time, the deadline, the associated channel and the program name of each program, and FIG. 3 is an example of the program information included in the program list.
  • the program production staff can view the pictures of the respective programs by browsing the stored media files of the respective programs, and record the information of each program one by one, and add them to the program list.
  • the program production staff browses the stored media files of each program and views the screens of the respective programs.
  • the program information recorded one by one includes: 30 minutes of news, the channel is CCTV1, the starting time is 07:00, and the deadline is 07: 30; Today, the channel is CCTV1, the starting time is 12: 41, the deadline is 12: 58; focus interview, the channel is CCTV1, the starting time is 18: 00, the deadline is 18: 30; Etc.; Add the information of each recorded program to the program list to obtain the program list shown in FIG.
  • the original program list is obtained, and the original program list is a preset program list before the live broadcast; after the live program is recorded, the stored media files of each program are viewed, the pictures of each program are viewed, and the original program list is checked one by one. The information of each program recorded is corrected, and the information of each program on the original program list is corrected.
  • the information of each program recorded in the original program list is inaccurate, and the present invention uses the accuracy of the first recorded live video list.
  • Step 203 The program production partition includes the program list according to the matching condition for setting each category. The programs are classified, and a program list is generated for each category.
  • this step includes:
  • Step 2031 creating a classification.
  • the categories established include: News 30 points, focus interviews, today's statements, etc.
  • step 2032 matching conditions are respectively set for each category.
  • Figure 5 shows an example of the relationship between matching conditions, classification, and program listing.
  • the matching condition corresponding to the "News 30 points” setting includes the matching condition 1 and the matching condition 2: the matching condition 1 is, the playback start time is 07: 00; the matching condition 2 is, the program name is "news 30 minutes”.
  • the matching conditions corresponding to the "Focus Interview” setting include the matching condition 3 and the matching condition 4: the matching condition 3 is, the program name is "focus interview”; the matching condition 4 is, the playing deadline is 18:30.
  • the matching conditions corresponding to the "Today's Statement” setting include matching condition 5, matching condition 6 and matching condition 7: matching condition 5 is, playback start time is 12: 41; matching condition 6 is, playback deadline is 12: 58; matching Condition 6 is, the program name is "Today's Statement”.
  • each category has a corresponding matching condition, and a certain program can be added to the program list corresponding to the category as long as the matching condition of a certain category is satisfied.
  • step 2033 the programs included in the program list are judged one by one, and it is judged whether each program satisfies the matching condition of a certain category. If yes, step 2034 is performed; otherwise, the process ends.
  • the program can also be added to a separately created list for recording all the programs whose classification has failed.
  • Step 2034 adding a corresponding program to the program list corresponding to the certain category.
  • Step 204 The program production partition acquires the media file of the corresponding program in the stored media file according to the program list, and caches the obtained media file.
  • Step 205 The program production partition publishes a program list that includes the program information obtained in the media file to the EPG, and the EPG is displayed to the user by the set top box.
  • the acquisition fails; correspondingly, when the program list corresponding to each category is published to the EPG, the program does not need to publish the program that has not obtained the media file to the EPG. , and only need to publish the program that gets the media file to the EPG. Yes, that is, the program list including only the program information acquired in the media file can be published to the EPG.
  • each program list is displayed to the user through the EPG, and each program list displayed to the user includes description information about the program, including the start time, the deadline, the channel to which it belongs, and the program name. Further, in order to describe each program in more detail, this step may further generate description information of the corresponding program according to the media file acquired in step 204, and the generated description information of the corresponding program includes the start time, the deadline, and the associated information.
  • the director, the clip, and the like of the program may also be included, and the generated description information of the corresponding program may be specifically set according to requirements; and then, the description information of the program included in each category is posted to the EPG, and the EPG will be The description information of the programs included in each category is displayed to the user.
  • Step 206 The user selects a program to be played from a program list of a certain classification of the EPG, and sends an on-demand command including the program requested to be played to the program production partition through the set top box.
  • the information displayed to the user through the EPG is the classified program information, and the user can select a certain category according to his own needs, and then select the program to be played in the program list corresponding to the category.
  • the search workload is reduced.
  • Step 207 After receiving the on-demand command, the program production partition queries the media file of the program to be played from the cached media file, and sends the media file to the set-top box for playing.
  • a program list generated by each program production partition includes a universal program, such as a program played by a channel such as CCTV1 and CCTV2; correspondingly, when step 203 respectively generates a program list for each category, each program creation partition needs to be The universal program is classified.
  • the present invention may further further set up a program production center for uniformly classifying the universal programs and other programs other than the universal programs recorded by the respective program production sections, and cooperating with the respective program production sections. Program list; without having to generate a program listing independently for each program production partition.
  • the process of generating a program list includes: recording a live program in each program production section, respectively storing the media files of the recorded program; recording a live program of the program in the program production center, and storing media files of each popular program; and then, the program The production center generates a first program list for all the universal programs recorded according to the stored media files of the universal programs, and each program production partition acquires the first program list from the program production center, and generates and generates according to the media files stored separately. Recording a second program list of programs other than the program included in the first program list; each program production section uploads the second program list to a program production center, the first program list and each program production partition The uploaded second program is merged into the program list.
  • the program production center uniformly classifies the programs included in the program list according to the set matching conditions for each category, and generates a program list corresponding to each category.
  • Each program production zone obtains a list of programs required from the program production center.
  • Step 601 The program production center records the live program of the live broadcast, stores the media files of each universal program, and generates a program list for all the popular programs recorded.
  • the program listing generated by the program production center for all the popular programs recorded is referred to as the first program list.
  • the program production staff can view the pictures of the various universal programs by browsing the stored media files of the universal programs, and record the information of each universal program one by one, and add them to all the popular programs for recording. In the program list.
  • Step 602 The program production section records the live broadcast program, and stores the media files of each program. Steps 601 and 602 can be performed out of order.
  • Step 603 The program production partition acquires a first program list from the program production center, and a second program list of other programs outside the program production area.
  • Step 604 The program production partition uploads the second program list to the program production center.
  • Step 605 The program production center uniformly classifies the program included in the first program list and the programs included in each second program list uploaded by each program production section according to the set matching condition for each category, and respectively generates programs corresponding to each category. List.
  • the method for the program production center to classify according to the set matching condition for each category is similar to the implementation process of step 203.
  • the difference is that the object to be classified in step 203 is the program included in the program list generated by the program production partition, and
  • the objects classified in this step are the programs included in the first program list and the programs included in the respective second program listings uploaded by the respective program production sections.
  • Step 606 The program production partition acquires a required program list from the program production center, and stores the program list.
  • the program production section obtains a program list from the program production center according to its own needs, and the obtained program list may be a list of all programs in the program production center, or may be a partial program list.
  • the program production zone can perform video on demand based on the program list obtained from the program production center, and the flow is as shown in steps 204 to 207.
  • Step 607 The program production partition acquires the media file of the corresponding program in the stored media file according to the program list, and caches the obtained media file.
  • Step 608 The program production partition publishes a program list including the program information obtained in the media file to the EPG, and the EPG is displayed to the user by the set top box.
  • the acquisition fails. Since the program included in the program list is classified for all the programs recorded in each program production zone, the media file acquisition failure of most programs is failed.
  • the program included in the program list corresponding to each category is published to the EPG, the program that does not obtain the media file does not need to be published to the EPG, and only the program that obtains the media file needs to be published to the EPG. That is, the program list including only the program information acquired in the media file is posted to the EPG.
  • Step 609 The user selects a program to be played from a program list of a certain category of the EPG, and sends an on-demand command including the program requested to be played to the program production zone through the set top box.
  • the information displayed to the user through the EPG is the classified program information, and the user can select a certain category according to his own needs, and then select the program to be played in the program list corresponding to the category.
  • the search workload is reduced.
  • Step 610 After receiving the on-demand command, the program production partition queries the media file of the program to be played from the cached media file, and sends the media file to the set-top box for playing.
  • Each program production partition includes a recording server, a program production workstation, a program classification management server, a database, and program information acquisition.
  • the recording server is configured to record a live program and store the media text of each program Piece
  • the program production workstation is configured to generate a program list for all the recorded programs according to the media files of the respective programs stored by the recording server, and send the program list to the program classification management server;
  • the program classification management server sets matching conditions of each category, classifies programs included in the program list according to matching conditions of each category, and generates a program list corresponding to each category, and stores them in a database, and the database is
  • the program list stored in the program is sent to the program information acquisition server;
  • the program information obtaining server is configured to: obtain, according to the received program list sent by the program classification management server, a media file of the corresponding program in the recording server, and cache the obtained media file;
  • the program list of the program information is sent to the program distribution server, and the EPG sent by the program distribution server is received and transmitted to the set top box;
  • the on-demand command sent by the receiver set-top box containing the program requested to be played is queried from the cached media file.
  • the media file of the program requested to be played is sent to the set top box;
  • the program distribution server is configured to receive a program list sent by the program information acquisition server, publish the program list to the EPG, and transmit the EPG to the program information acquisition server;
  • the set top box is configured to receive an EPG sent by the program information obtaining server, and display it to a user; receive a program requested by the user to select a program selected from a certain classified program list of the EPG, and send the program to the program information acquiring server.
  • An on-demand command including a program requested to be played; receiving and playing the program information acquisition server to transmit the media file.
  • the system further includes a program production center, wherein the program list stored by the database is generated by the program production center in cooperation with each program production partition, and is not independently completed by each program production partition.
  • the system includes program production. a center, each program production partition and a set top box, the program production center includes a central recording server, a central program production workstation, a central program classification management server, and a central database;
  • the central recording server is configured to record a live program of a live broadcast and store media files of each universal program
  • the central program production workstation is configured to generate, according to the media files of the universal programs stored by the central recording server, a first program list for all the universal programs recorded, and the first program list Sending to the central program classification management server;
  • Each program production partition is configured to record a live broadcast program and store the recorded media file; obtain the first program list from the central program classification management server, and generate a record about the recording according to the stored media file.
  • a second program list of a program other than the program included in the program list the second program list is transmitted to the central program classification management server; and each program production partition is also acquired by the central program classification management server in the central database List of stored programs;
  • the central program classification management server transmits the first program list sent by the central program production workstation to each program production partition; sets a matching condition of each category, and matches the first program list according to the matching condition of each category
  • the included program and the programs included in each second program list uploaded by each program production partition are uniformly classified, and a program list is generated for each category, and stored in a central database; the program stored in the central database is requested according to the request initiated by each program creation partition.
  • the list is transmitted to the corresponding program production partition;
  • Each program production partition further acquires a media file of the corresponding program in the stored media file according to the received program list, and caches the obtained media file; and distributes the program list including the program information acquired in the media file to the electronic
  • the program menu EPG is transmitted to the set top box; the on-demand command sent by the receiver set-top box containing the program to be played, the media file of the program requested to be played is queried from the cached media file, and sent to the set-top box;
  • the set top box is configured to receive an EPG sent by each program production partition and display it to a user; receive a program requested by the user to select a program selected from a certain classified program list of the EPG, and send the request to the corresponding program production partition to include the request to play On-demand commands for programs; receive and play media files sent by individual program production zones.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Human Computer Interaction (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

一种基于直播录制的视频点播方法及系统, 其中, 该方法包括: 录制直播的节目, 存储各个节目的媒体文件, 生成关于录制的所有节目的节目单; 根据设置的匹配条件对节目单包含的节目进行分类,对应每个分类分别生成节目列表;将各个节目列表包含的获取到媒体文件的节目发布到电子节目菜单EPG,将EPG传送给机顶盒;接收机顶盒发送的包含请求播放的节目的点播命令,所述请求播放的节目为用户从EPG的某一分类的节目列表中选择出来的界面; 从缓存的媒体文件中查询出该请求播放的节目的媒体文件, 发送给机顶盒进行播放。本发明方案能够提供准确的、进行分类后的节目信息。

Description

基于直播录制的视频点播方法及系统
本申请要求于 2009 年 9 月 15 日提交中国专利局、 申请号为 200910173687.8、 发明名称为"基于直播录制的视频点播方法及系统"的中国专 利申请的优先权, 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及视频点播技术, 尤其涉及基于直播录制的视频点播方法及系 统。
背景技术
目前,基于直播录制的视频点播方法流程如图 1所示, 该方法包括以下步 骤:
步骤 101 , 节目制作分区根据原始节目单录制直播的节目, 存储各个节目 的媒体文件。
原始节目单是直播之前预先设定好的节目单,原始节目单中主要记录了即 将播放的各个节目的起始时间、 截止时间、 所属的频道和节目名称。 本步骤按 照原始节目单对直播的节目进行录制。
步骤 102 , 节目制作分区将原始节目单发布到电子节目菜单 (EPG , Electronic Program Guide ) , 由机顶盒将 EPG展示给用户。
步骤 103 , 用户浏览 EPG, 从中选择请求播放的节目, 通过机顶盒向节目 制作分区发送包含所述请求播放的节目的点播命令。
步骤 104, 节目制作分区接收点播命令后, 从步骤 101存储的媒体文件中 查询出该请求播放的节目的媒体文件, 将该媒体文件发送给机顶盒,通过机顶 盒进行播放。
原始节目单中包含的各个节目的信息, 是预先记录的关于直播节目的信 息, 由于直播节目具有突发性, 在直播过程中, 可能出现不能按照原始节目单 进行播放的情况, 例如, 按照原始节目单录制的实际节目有很多广告等片头, 导致原始节目单记录的关于该节目的起始时间不准确; 再如,按照节目单录制 的节目有很多广告等片尾,导致原始节目单记录的关于该节目的截止时间不准 确; 又比如, 原始节目单上的某些节目可能被取消, 导致原始节目单上关于该 节目的记录不准确。 由于原始节目单记录的节目信息不准确, 相应地, 将导致 步骤 102中展示给用户的 EPG中记录的节目信息不准确。
并且, 步骤 103 中, 用户浏览 EPG, 从中查找请求播放的节目, 由于现 有技术中 EPG展示的节目信息没有进行分类, 导致查找不方便, 加大了用户 的查找工作量。
综上, 现有的基于直播录制的视频点播方法存在以下缺点: 通过 EPG展 示的节目信息不准确, 并且, 不能提供分类的节目信息, 不便于用户查找需要 的节目。
发明内容
本发明提供一种基于直播录制的视频点播方法, 该方法能够提供准确的、 进行分类后的节目信息。
本发明提供基于直播录制的视频点播系统, 该系统能够提供准确的、进行 分类后的节目信息。
本发明提供一种节目制作分区, 该节目制作分区能够提供准确的、进行分 类后的节目信息。
一种基于直播录制的视频点播方法, 该方法包括:
录制直播的节目 , 存储各个节目的媒体文件;
根据存储的各个节目的媒体文件生成节目单,根据设置的关于每个分类的 匹配条件对节目单包含的节目进行分类, 对应每个分类分别生成节目列表; 根据节目列表, 在存储的媒体文件中获取相应节目的媒体文件, 并緩存; 将包含获取到媒体文件的节目的节目列表发布到电子节目菜单 EPG, 将
EPG传送给机顶盒;
接收机顶盒发送的包含请求播放的节目的点播命令,所述请求播放的节目 是用户从 EPG的某一分类的节目列表中选择出来的; 从緩存的媒体文件中查 询出该请求播放的节目的媒体文件, 发送给机顶盒进行播放。
一种基于直播录制的视频点播系统,该系统包括各个节目制作分区和机 顶盒, 每个节目制作分区包括录制服务器、 节目制作工作站、 节目分类管理服 务器、 数据库、 节目信息获取服务器和节目发布服务器;
所述录制服务器, 用于对直播的节目进行录制, 并存储各个节目的媒体文 件; 所述节目制作工作站,用于根据所述录制服务器存储的各个节目的媒体文 件, 生成关于录制的所有节目的节目单,将所述节目单发送给所述节目分类管 理服务器;
所述节目分类管理服务器,设置每个分类的匹配条件, 根据每个分类的匹 配条件,对所述节目单包含的节目进行分类,对应每个分类分别生成节目列表, 存储到数据库中, 将数据库中存储的节目列表发送给所述节目信息获取服务 器;
所述节目信息获取服务器,用于根据接收的由所述节目分类管理服务器发 送的节目列表,在录制服务器中获取相应节目的媒体文件,对获取到的媒体文 务器, 接收所述节目发布服务器发送的 EPG, 传送给机顶盒; 接收机顶盒发 送的包含请求播放的节目的点播命令,从緩存的媒体文件中查询出该请求播放 的节目的媒体文件, 发送给机顶盒;
所述节目发布服务器, 用于接收所述节目信息获取服务器发送的节目列 表, 将节目列表发布到 EPG, 将 EPG传送给所述节目信息获取服务器;
所述机顶盒,用于接收由所述节目信息获取服务器发送的 EPG,并展示给 用户; 接收用户从 EPG的某一分类的节目列表中选择的请求播放的节目, 向 所述节目信息获取服务器发送包含请求播放的节目的点播命令;接收并播放所 述节目信息获取服务器发送的媒体文件。
一种基于直播录制的视频点播系统, 该系统包括节目制作中心、 各个节 目制作分区和机顶盒, 该节目制作中心包括中心录制服务器、 中心节目制作工 作站、 中心节目分类管理服务器和中心数据库;
所述中心录制服务器, 用于对直播的普遍节目进行录制, 并存储各个普遍 节目的媒体文件;
所述中心节目制作工作站,用于根据所述中心录制服务器存储的各个普遍 节目的媒体文件, 生成关于录制的所有普遍节目的第一节目单, 将第一节目单 发送给所述中心节目分类管理服务器;
各个节目制作分区,用于对直播的节目进行录制,并存储录制的媒体文件; 从所述中心节目分类管理服务器获取所述第一节目单,根据存储的媒体文件生 成关于录制的除所述第一节目单包含的节目以外的其它节目的第二节目单,将 第二节目单传送给所述中心节目分类管理服务器;各个节目制作分区还通过所 述中心节目分类管理服务器获取所述中心数据库中存储的节目列表;
所述中心节目分类管理服务器,将所述中心节目制作工作站发送的第一节 目单, 传送给各个节目制作分区; 设置每个分类的匹配条件, 根据每个分类的 匹配条件,对第一节目单包含的节目以及各个节目制作分区上传的各个第二节 目单包含的节目进行统一分类,对应每个分类分别生成节目列表,存储到中心 数据库;根据各个节目制作分区发起的请求将中心数据库存储的节目列表传送 给相应的节目制作分区;
各个节目制作分区, 还根据接收的节目列表, 在存储的媒体文件中获取相 应节目的媒体文件,对获取到的媒体文件进行緩存; 将包含获取到媒体文件的 节目的节目列表发布到电子节目菜单 EPG, 传送给机顶盒; 接收机顶盒发送 的包含请求播放的节目的点播命令,从緩存的媒体文件中查询出该请求播放的 节目的媒体文件, 发送给机顶盒;
所述机顶盒, 用于接收由各个节目制作分区发送的 EPG, 并展示给用户; 接收用户从 EPG的某一分类的节目列表中选择的请求播放的节目, 向相应的 节目制作分区发送包含请求播放的节目的点播命令;接收并播放各个节目制作 分区发送的媒体文件。
一种节目制作分区,该节目制作分区包括录制服务器、节目制作工作站、 节目分类管理服务器、 数据库、 节目信息获取服务器和节目发布服务器;
所述录制服务器, 用于对直播的节目进行录制, 并存储各个节目的媒体文 件;
所述节目制作工作站,用于根据所述录制服务器存储的各个节目的媒体文 件, 生成关于录制的所有节目的节目单,将所述节目单发送给所述节目分类管 理服务器;
所述节目分类管理服务器,设置每个分类的匹配条件, 根据每个分类的匹 配条件,对所述节目单包含的节目进行分类,对应每个分类分别生成节目列表, 存储到数据库中, 将数据库中存储的节目列表发送给所述节目信息获取服务 器; 所述节目信息获取服务器,用于根据接收的由所述节目分类管理服务器发 送的节目列表,在录制服务器中获取相应节目的媒体文件,对获取到的媒体文 务器, 接收所述节目发布服务器发送的 EPG, 传送给机顶盒; 接收机顶盒发 送的包含请求播放的节目的点播命令, 所述请求播放的节目是用户从 EPG的 某一分类的节目列表中选择出来的,所述节目信息获取服务器从緩存的媒体文 件中查询出该请求播放的节目的媒体文件, 发送给机顶盒;
所述节目发布服务器, 用于接收所述节目信息获取服务器发送的节目列 表, 将节目列表发布到 EPG, 将 EPG传送给所述节目信息获取服务器。
从上述方案可以看出, 本发明中, 先录制直播的节目, 存储各个节目 的媒体文件, 然后根据存储的各个节目的媒体文件生成关于录制的所有节 目的节目单; 这样, 避免了现有技术出现的节目单包含的节目信息不准确 的问题。 并且, 本发明还提供了对节目单进行分类的方案, 包括: 根据设 置的关于每个分类的匹配条件对节目单包含的节目进行分类, 对应每个分 类分别生成节目列表, 根据节目列表在存储的各个节目的媒体文件中获取 相应节目的媒体文件, 对获取的媒体文件进行緩存; 将各个节目列表包含的 获取到媒体文件的节目发布到电子节目菜单 EPG, 由机顶盒将 EPG展示给用 户; 接收机顶盒发送的包含请求播放的节目的点播命令, 所述请求播放的节目 是用户从 EPG的某一分类的节目列表中选择出来的; 从緩存的媒体文件中查 询出该请求播放的节目的媒体文件, 发送给机顶盒进行播放。 这样, 通过本 发明方案实现了为用户提供分类后的节目信息, 便于查找需要的节目。 附图说明
图 1为现有技术中基于直播录制的视频点播方法流程图;
图 2为本发明基于直播录制的视频点播方法示例性流程图;
图 3为本发明生成的节目单所包含的节目信息实例;
图 4为本发明生成节目列表的方法流程图实例;
图 5为本发明中匹配条件、 分类、 节目列表之间的关系示意图实例; 图 6 为本发明中由节目制作中心协助各个节目制作分区进行视频点播的 方法流程图; 图 7为本发明基于直播录制的视频点播系统结构示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚明白, 下面结合实施例和附 图, 对本发明进一步详细说明。
本发明对直播的节目进行录制,存储录制的各个节目的媒体文件,根据存 目单进行分类后通过机顶盒展示给用户。这样,不仅能够提供准确的节目信息; 而且, 能够提供进行分类后的节目信息, 方便了用户查找需要的节目, 提高了 查找效率。
本发明基于直播录制的视频点播方法具体包括: 录制直播的节目, 存储各 个节目的媒体文件; 根据存储的各个节目的媒体文件生成节目单,根据设置的 关于每个分类的匹配条件对节目单包含的节目进行分类,对应每个分类分别生 成节目列表; 根据节目列表, 在存储的媒体文件中获取相应节目的媒体文件, 并緩存;将包含获取到媒体文件中的节目信息的节目列表发布到电子节目菜单 EPG, 将 EPG传送给机顶盒; 接收机顶盒发送的包含请求播放的节目的点播 命令, 所述请求播放的节目是用户从 EPG的某一分类的节目列表中选择出来 的; 从緩存的媒体文件中查询出该请求播放的节目的媒体文件,发送给机顶盒 进行播放。
下面通过图 2对本发明基于直播录制的视频点播方法进行详细说明,该方 法包括以下步骤:
步骤 201 , 节目制作分区录制直播的节目, 存储各个节目的媒体文件。 节目制作分区将直播的节目录制下来, 并存储, 存储的媒体文件的格式可 以釆用 TS ( Transport Stream, 传输流)格式, 釆用 TS格式时, 也将媒体文件 称为 TS文件。 媒体文件是连续存储的, 存储时, 可以规定每个 TS文件的大 小, 例如可以规定每个 TS文件为 512M, 参见表 1 , 为逐一存储的 n个 TS文 件: TS文件 1 ~ TS文件 n。 这样就可以把一天或几天的直播节目都存储到节 目制作分区中, 为视频点播做好准备。 TS文件 1
TS文件 2
TS文件 3
TS文件 n
目单。
节目单主要记录了各个节目的起始时间、截止时间、 所属的频道和节目名 称, 图 3为节目单包含的节目信息举例。
具体地, 本步骤中, 节目制作工作人员可以通过浏览存储的各个节目 的媒体文件, 观看各个节目的画面, 逐一记录下各个节目的信息, 将其添 加到节目单中。 例如, 节目制作工作人员通过浏览存储的各个节目的媒体 文件, 观看各个节目的画面, 逐一记录下的节目信息包括: 新闻 30分, 所 属频道为 CCTV1 , 起始时间为 07 : 00 , 截止时间为 07 : 30; 今日说法, 所属频道为 CCTV1 , 起始时间为 12: 41 , 截止时间为 12: 58; 焦点访谈, 所属频道为 CCTV1 , 起始时间为 18: 00 , 截止时间为 18: 30; 等等; 将 记录后的各个节目的信息添加到节目单中, 得到图 3所示的节目单。 或者, 首先获取原始节目单, 原始节目单为直播之前预先设定好的节目单; 对直 播节目进行录制后, 浏览存储的各个节目的媒体文件, 观看各个节目的画 面, 逐一核对原始节目单中记录的各个节目的信息, 修正原始节目单上不准 确的各个节目的信息。
原始节目单中记录的各个节目的信息不准确,而本发明釆用先录制直播的 目单的准确性。
步骤 203 , 节目制作分区根据设置关于每个分类的匹配条件对节目单包含 的节目进行分类, 对应每个分类分别生成节目列表。
具体地, 本步骤包括:
步骤 2031 , 建立分类。
例如, 建立的分类包括: 新闻 30分, 焦点访谈, 今日说法等。
步骤 2032, 对应每个分类分别设置匹配条件。
参见图 5 , 图 5示出了匹配条件、 分类、 节目列表三者之间关系的一个实 例。
例如,对应 "新闻 30分"设置的匹配条件包括匹配条件 1和匹配条件 2: 匹 配条件 1为, 播放起始时间为 07: 00; 匹配条件 2为, 节目名称为"新闻 30 分"。对应"焦点访谈"设置的匹配条件包括匹配条件 3和匹配条件 4: 匹配条件 3为, 节目名称为"焦点访谈"; 匹配条件 4为, 播放截止时间为 18: 30。 对应 "今日说法"设置的匹配条件包括匹配条件 5、 匹配条件 6和匹配条件 7: 匹配 条件 5为, 播放起始时间为 12: 41 ; 匹配条件 6为, 播放截止时间为 12: 58; 匹配条件 6为, 节目名称为"今日说法"。
相应的, 每个分类都有相应的匹配条件, 某一节目只要满足某一分类的匹 配条件, 便可将该某一节目添加到该分类对应的节目列表中。
步骤 2033 , 对节目单中包含的节目逐一进行判断, 判断各个节目是否满 足某一分类的匹配条件, 如果满足, 则执行步骤 2034; 否则, 结束流程。
当判断出某一节目不满足某一分类的匹配条件时,也可将该节目添加到单 独建立的一个列表中, 该列表用于记录分类失败的所有节目。
步骤 2034, 将相应节目添加到该某一分类对应的节目列表中。
步骤 204, 节目制作分区根据节目列表在存储的媒体文件中获取相应节目 的媒体文件, 对获取到的媒体文件进行緩存。
步骤 205 , 节目制作分区将包含获取到媒体文件中的节目信息的节目列表 发布到 EPG, 由机顶盒将 EPG展示给用户。 目的媒体文件时,如果关于某一节目的媒体文件不存在,则获取失败;相应地, 步骤 205将各个分类对应的节目列表发布到 EPG时, 不需要将没有获取到媒 体文件的节目发布到 EPG, 而只需要将获取到媒体文件的节目发布到 EPG即 可, 也就是将只包含获取到媒体文件中的节目信息的节目列表发布到 EPG即 可。
本步骤中通过 EPG将各个节目列表展示给用户, 展示给用户的各个节目 列表包含关于节目的描述信息, 具体包括起始时间、 截止时间、 所属的频道和 节目名称。 进一步地, 为了更加详细地对各个节目进行描述, 本步骤还可以根 据步骤 204获取到的媒体文件生成相应节目的描述信息,生成的相应节目的描 述信息除了包括起始时间、 截止时间、 所属的频道和节目名称外, 还可以包括 该节目的导演、剪辑等信息,生成的相应节目的描述信息可根据需要具体设定; 然后, 将各个分类包含的节目的描述信息发布到 EPG, 通过 EPG将各个分类 包含的节目的描述信息展示给用户。
步骤 206,用户从 EPG的某一分类的节目列表中选择请求播放的节目,通 过机顶盒向节目制作分区发送包含所述请求播放的节目的点播命令。
通过 EPG展示给用户的是分类后的节目信息, 用户可根据自己的需要 先选定某一分类, 再在该分类对应的节目列表中选择请求播放的节目。 相 比现有技术中因没有进行节目分类, 而需要逐一浏览节目单中的节目以查 找自己需要的节目相比较, 减少了查找工作量。
步骤 207 , 节目制作分区接收所述点播命令后, 从緩存的媒体文件中查询 出该请求播放的节目的媒体文件, 发送给机顶盒进行播放。
通常, 步骤 202 各个节目制作分区生成的节目单中都包括普遍节目, 如 CCTV1、 CCTV2等频道播放的节目; 相应地, 步骤 203对应每个分类分别生 成节目列表时,各个节目制作分区都需要对所述普遍节目进行分类。 为了减少 各个节目制作分区的工作量, 本发明还可以进一步设置节目制作中心, 用于对 普遍节目以及各个节目制作分区录制的除普遍节目外的其它节目进行统一分 类, 与各个节目制作分区合作生成节目列表; 而无需各个节目制作分区独立生 成节目列表。 这种情况下, 生成节目列表的过程包括: 各个节目制作分区录制 直播的节目, 分别存储录制的节目的媒体文件; 节目制作中心录制直播的普遍 节目, 存储各个普遍节目的媒体文件; 然后, 节目制作中心根据存储的各个普 遍节目的媒体文件生成关于录制的所有普遍节目的第一节目单,各个节目制作 分区从节目制作中心获取所述第一节目单,根据各自存储的媒体文件生成关于 录制的除所述第一节目单包含的节目以外的其它节目的第二节目单;各个节目 制作分区将所述第二节目单上传给节目制作中心,所述第一节目单和各个节目 制作分区上传的第二节目单合为所述节目单; 最后, 由节目制作中心根据设置 的关于每个分类的匹配条件对所述节目单包含的节目进行统一分类,对应每个 分类分别生成节目列表,各个节目制作分区从节目制作中心获取需要的节目列 表。下面通过图 6对由节目制作中心协助各个节目制作分区进行视频点播的方 法进行说明, 其包括以下步骤:
步骤 601 , 节目制作中心录制直播的普遍节目, 存储各个普遍节目的媒体 文件, 并生成关于录制的所有普遍节目的节目单。
为了便于描述,将节目制作中心生成的关于录制的所有普遍节目的节目单 称为第一节目单。
具体地, 本步骤中, 节目制作工作人员可以通过浏览存储的各个普遍 节目的媒体文件, 观看各个普遍节目的画面, 逐一记录下各个普遍节目的 信息, 将其添加到关于录制的所有普遍节目的节目单中。
步骤 602, 节目制作分区录制直播的节目, 存储各个节目的媒体文件。 步骤 601和 602可无序执行。
步骤 603 , 节目制作分区从节目制作中心获取第一节目单, 节目制作分区 目外的其它节目的第二节目单。
步骤 604, 节目制作分区将所述第二节目单上传给节目制作中心。
步骤 605 , 节目制作中心根据设置的关于每个分类的匹配条件对第一节目 单包含的节目以及各个节目制作分区上传的各个第二节目单包含的节目进行 统一分类, 对应每个分类分别生成节目列表。
节目制作中心根据设置的关于每个分类的匹配条件进行分类的方法,与步 骤 203的实现过程类似, 不同的是, 步骤 203中进行分类的对象是节目制作分 区生成的节目单包含的节目,而本步骤中进行分类的对象是第一节目单包含的 节目以及各个节目制作分区上传的各个第二节目单包含的节目。
步骤 606, 节目制作分区从节目制作中心获取需要的节目列表, 存储节目 列表。 节目制作分区根据自己的需要从节目制作中心获取节目列表,获取的节目 列表可以是节目制作中心内的所有节目列表, 也可以是部分节目列表。
之后,节目制作分区便可基于从节目制作中心获取的节目列表进行视频点 播, 其流程为步骤 204至步骤 207所示。
步骤 607 , 节目制作分区根据节目列表在存储的媒体文件中获取相应节目 的媒体文件, 对获取到的媒体文件进行緩存。
步骤 608, 节目制作分区将包含获取到媒体文件中的节目信息的节目列表 发布到 EPG, 由机顶盒将 EPG展示给用户。 目的媒体文件时, 如果关于某一节目的媒体文件不存在, 则获取失败, 由于节 目列表包含的节目是针对各个节目制作分区录制的所有节目进行分类得到的, 多数节目的媒体文件获取失败的情况。相应地, 步骤 608将各个分类对应的节 目列表包含的节目发布到 EPG时, 不需要将没有获取到媒体文件的节目发布 到 EPG, 而只需要将获取到媒体文件的节目发布到 EPG即可, 也就是将只包 含获取到媒体文件中的节目信息的节目列表发布到 EPG即可。
步骤 609,用户从 EPG的某一分类的节目列表中选择请求播放的节目,通 过机顶盒向节目制作分区发送包含所述请求播放的节目的点播命令。
通过 EPG展示给用户的是分类后的节目信息, 用户可根据自己的需要 先选定某一分类, 再在该分类对应的节目列表中选择请求播放的节目。 相 比现有技术中因没有进行节目分类, 而需要逐一浏览节目单中的节目以查 找自己需要的节目相比较, 减少了查找工作量。
步骤 610, 节目制作分区接收所述点播命令后, 从緩存的媒体文件中查询 出该请求播放的节目的媒体文件, 发送给机顶盒进行播放。
参见图 7 , 为本发明基于直播录制的视频点播系统结构示意图, 该系统包 括各个节目制作分区和机顶盒,每个节目制作分区包括录制服务器、节目制作 工作站、 节目分类管理服务器、 数据库、 节目信息获取服务器和节目发布服务 器;
所述录制服务器, 用于对直播的节目进行录制, 并存储各个节目的媒体文 件;
所述节目制作工作站,用于根据所述录制服务器存储的各个节目的媒体文 件, 生成关于录制的所有节目的节目单,将所述节目单发送给所述节目分类管 理服务器;
所述节目分类管理服务器,设置每个分类的匹配条件, 根据每个分类的匹 配条件,对所述节目单包含的节目进行分类,对应每个分类分别生成节目列表, 存储到数据库中, 将数据库中存储的节目列表发送给所述节目信息获取服务 器;
所述节目信息获取服务器,用于根据接收的由所述节目分类管理服务器发 送的节目列表,在录制服务器中获取相应节目的媒体文件,对获取到的媒体文 件进行緩存;将包含获取到媒体文件中的节目信息的节目列表发送给所述节目 发布服务器, 接收所述节目发布服务器发送的 EPG, 传送给机顶盒; 接收机 顶盒发送的包含请求播放的节目的点播命令,从緩存的媒体文件中查询出该请 求播放的节目的媒体文件, 发送给机顶盒;
所述节目发布服务器, 用于接收所述节目信息获取服务器发送的节目列 表, 将节目列表发布到 EPG, 将 EPG传送给所述节目信息获取服务器;
所述机顶盒,用于接收由所述节目信息获取服务器发送的 EPG,并展示给 用户; 接收用户从 EPG的某一分类的节目列表中选择的请求播放的节目, 向 所述节目信息获取服务器发送包含请求播放的节目的点播命令;接收并播放所 述节目信息获取服务器发送的媒体文件播放。
可选地, 该系统还包括节目制作中心, 所述数据库存储的节目列表由节目 制作中心与各个节目制作分区合作生成, 而不由各个节目制作分区独立完成, 这种情况下, 该系统包括节目制作中心、 各个节目制作分区和机顶盒, 该节目 制作中心包括中心录制服务器、 中心节目制作工作站、 中心节目分类管理服务 器和中心数据库;
所述中心录制服务器, 用于对直播的普遍节目进行录制, 并存储各个普遍 节目的媒体文件;
所述中心节目制作工作站,用于根据所述中心录制服务器存储的各个普遍 节目的媒体文件, 生成关于录制的所有普遍节目的第一节目单, 将第一节目单 发送给所述中心节目分类管理服务器;
各个节目制作分区,用于对直播的节目进行录制,并存储录制的媒体文件; 从所述中心节目分类管理服务器获取所述第一节目单,根据存储的媒体文件生 成关于录制的除所述第一节目单包含的节目以外的其它节目的第二节目单,将 第二节目单传送给所述中心节目分类管理服务器;各个节目制作分区还通过所 述中心节目分类管理服务器获取所述中心数据库中存储的节目列表;
所述中心节目分类管理服务器,将所述中心节目制作工作站发送的第一节 目单, 传送给各个节目制作分区; 设置每个分类的匹配条件, 根据每个分类的 匹配条件,对第一节目单包含的节目以及各个节目制作分区上传的各个第二节 目单包含的节目进行统一分类,对应每个分类分别生成节目列表,存储到中心 数据库;根据各个节目制作分区发起的请求将中心数据库存储的节目列表传送 给相应的节目制作分区;
各个节目制作分区, 还根据接收的节目列表, 在存储的媒体文件中获取相 应节目的媒体文件,对获取到的媒体文件进行緩存; 将包含获取到媒体文件中 的节目信息的节目列表发布到电子节目菜单 EPG, 传送给机顶盒; 接收机顶 盒发送的包含请求播放的节目的点播命令,从緩存的媒体文件中查询出该请求 播放的节目的媒体文件, 发送给机顶盒;
所述机顶盒, 用于接收由各个节目制作分区发送的 EPG, 并展示给用户; 接收用户从 EPG的某一分类的节目列表中选择的请求播放的节目, 向相应的 节目制作分区发送包含请求播放的节目的点播命令;接收并播放各个节目制作 分区发送的媒体文件。
以上所述的具体实施例, 对本发明的目的、技术方案和有益效果进行了进 一步详细说明, 所应理解的是, 以上所述仅为本发明的具体实施例而已, 并不 用于限定本发明的保护范围,凡在本发明的精神和原则之内,所做的任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。

Claims

权 利 要 求
1、 一种基于直播录制的视频点播方法, 其特征在于, 该方法包括: 录制直播的节目 , 存储各个节目的媒体文件;
根据存储的各个节目的媒体文件生成节目单,根据设置的关于每个分类的 匹配条件对节目单包含的节目进行分类, 对应每个分类分别生成节目列表; 根据节目列表, 在存储的媒体文件中获取相应节目的媒体文件, 并緩存; 将包含获取到媒体文件的节目的节目列表发布到电子节目菜单 EPG, 将 EPG传送给机顶盒;
接收机顶盒发送的包含请求播放的节目的点播命令,所述请求播放的节目 是用户从 EPG的某一分类的节目列表中选择出来的; 从緩存的媒体文件中查 询出该请求播放的节目的媒体文件, 发送给机顶盒进行播放。
2、 如权利要求 1所述的方法, 其特征在于,
由节目制作分区录制直播的节目 , 存储各个节目的媒体文件; 关于每个分类的匹配条件对节目单包含的节目进行分类,对应每个分类分别生 成节目列表;
由节目制作分区根据节目列表,在存储的媒体文件中获取相应节目的媒体 文件, 并緩存;
由节目制作分区将包含获取到媒体文件的节目的节目列表发布到电子节 目菜单 EPG, 将 EPG传送给机顶盒;
由节目制作分区接收机顶盒发送的包含请求播放的节目的点播命令,所述 请求播放的节目是用户从 EPG的某一分类的节目列表中选择出来的; 由节目 制作分区从緩存的媒体文件中查询出该请求播放的节目的媒体文件,发送给机 顶盒进行播放。
3、 如权利要求 2所述的方法, 其特征在于, 所述由节目制作分区根据存 储的各个节目的媒体文件生成节目单包括: 节目制作分区基于原始节目单, 浏 览存储的各个节目的媒体文件,对原始节目单上各个节目的信息进行修正,得 到所述关于录制的所有节目的节目单。
4、 如权利要求 1所述的方法, 其特征在于, 所述录制直播的节目,存储各个节目的媒体文件包括: 各个节目制作分区 录制直播的节目, 分别存储录制的节目的媒体文件; 节目制作中心录制直播的 普遍节目, 存储各个普遍节目的媒体文件; 节目制作中心根据存储的各个普遍节目的媒体文件生成关于录制的所有 普遍节目的第一节目单;各个节目制作分区从节目制作中心获取所述第一节目 单,根据各自存储的媒体文件生成关于录制的除所述第一节目单包含的节目以 外的其它节目的第二节目单;各个节目制作分区将所述第二节目单上传给节目 制作中心,所述第一节目单和各个节目制作分区上传的第二节目单合为所述节 目单;由节目制作中心根据设置的关于每个分类的匹配条件对所合节目单包含 的节目进行统一分类, 对应每个分类分别生成节目列表;
所述根据节目列表, 在存储的媒体文件中获取相应节目的媒体文件, 并緩 存包括: 各个节目制作分区从节目制作中心获取需要的节目列表,根据获取的 节目列表, 在各自存储的媒体文件中获取相应节目的媒体文件, 并緩存; 由各个节目制作分区将包含获取到媒体文件的节目的节目列表发布到电 子节目菜单 EPG, 将 EPG传送给机顶盒;
由各个节目制作分区接收机顶盒发送的包含请求播放的节目的点播命令, 所述请求播放的节目是用户从 EPG的某一分类的节目列表中选择出来的; 由 各个节目制作分区从各自緩存的媒体文件中查询出该请求播放的节目的媒体 文件, 发送给机顶盒进行播放。
5、 如权利要求 1所述的方法, 其特征在于, 所述根据设置的关于每个分 类的匹配条件对节目单包含的节目进行分类,对应每个分类分别生成节目列表 包括:
判断节目单中的各个节目是否满足某一分类对应的匹配条件, 如果是, 则 将该节目添加到所述某一分类的节目列表中。
6、 如权利要求 1 中任一项所述的方法, 其特征在于, 所述将包含获取到 媒体文件的节目的节目列表发布到 EPG包括:
根据获取到的媒体文件生成相应节目的描述信息,将各个分类包含的获取 到媒体文件的节目的描述信息发布到 EPG。
7、 一种基于直播录制的视频点播系统, 其特征在于, 该系统包括各个节 目制作分区和机顶盒, 每个节目制作分区包括录制服务器、 节目制作工作站、 节目分类管理服务器、 数据库、 节目信息获取服务器和节目发布服务器;
所述录制服务器, 用于对直播的节目进行录制, 并存储各个节目的媒体文 件;
所述节目制作工作站,用于根据所述录制服务器存储的各个节目的媒体文 件, 生成关于录制的所有节目的节目单,将所述节目单发送给所述节目分类管 理服务器;
所述节目分类管理服务器,设置每个分类的匹配条件, 根据每个分类的匹 配条件,对所述节目单包含的节目进行分类,对应每个分类分别生成节目列表, 存储到数据库中, 将数据库中存储的节目列表发送给所述节目信息获取服务 器;
所述节目信息获取服务器,用于根据接收的由所述节目分类管理服务器发 送的节目列表,在录制服务器中获取相应节目的媒体文件,对获取到的媒体文 务器, 接收所述节目发布服务器发送的 EPG, 传送给机顶盒; 接收机顶盒发 送的包含请求播放的节目的点播命令,从緩存的媒体文件中查询出该请求播放 的节目的媒体文件, 发送给机顶盒;
所述节目发布服务器, 用于接收所述节目信息获取服务器发送的节目列 表, 将节目列表发布到 EPG, 将 EPG传送给所述节目信息获取服务器;
所述机顶盒,用于接收由所述节目信息获取服务器发送的 EPG,并展示给 用户; 接收用户从 EPG的某一分类的节目列表中选择的请求播放的节目, 向 所述节目信息获取服务器发送包含请求播放的节目的点播命令;接收并播放所 述节目信息获取服务器发送的媒体文件。
8、 一种基于直播录制的视频点播系统, 其特征在于, 该系统包括节目制 作中心、 各个节目制作分区和机顶盒, 该节目制作中心包括中心录制服务器、 中心节目制作工作站、 中心节目分类管理服务器和中心数据库;
所述中心录制服务器, 用于对直播的普遍节目进行录制, 并存储各个普遍 节目的媒体文件; 所述中心节目制作工作站,用于根据所述中心录制服务器存储的各个普遍 节目的媒体文件, 生成关于录制的所有普遍节目的第一节目单, 将第一节目单 发送给所述中心节目分类管理服务器;
各个节目制作分区,用于对直播的节目进行录制,并存储录制的媒体文件; 从所述中心节目分类管理服务器获取所述第一节目单,根据存储的媒体文件生 成关于录制的除所述第一节目单包含的节目以外的其它节目的第二节目单,将 第二节目单传送给所述中心节目分类管理服务器;各个节目制作分区还通过所 述中心节目分类管理服务器获取所述中心数据库中存储的节目列表;
所述中心节目分类管理服务器,将所述中心节目制作工作站发送的第一节 目单, 传送给各个节目制作分区; 设置每个分类的匹配条件, 根据每个分类的 匹配条件,对第一节目单包含的节目以及各个节目制作分区上传的各个第二节 目单包含的节目进行统一分类,对应每个分类分别生成节目列表,存储到中心 数据库;根据各个节目制作分区发起的请求将中心数据库存储的节目列表传送 给相应的节目制作分区;
各个节目制作分区, 还根据接收的节目列表, 在存储的媒体文件中获取相 应节目的媒体文件,对获取到的媒体文件进行緩存; 将包含获取到媒体文件的 节目的节目列表发布到电子节目菜单 EPG, 传送给机顶盒; 接收机顶盒发送 的包含请求播放的节目的点播命令,从緩存的媒体文件中查询出该请求播放的 节目的媒体文件, 发送给机顶盒;
所述机顶盒, 用于接收由各个节目制作分区发送的 EPG, 并展示给用户; 接收用户从 EPG的某一分类的节目列表中选择的请求播放的节目, 向相应的 节目制作分区发送包含请求播放的节目的点播命令;接收并播放各个节目制作 分区发送的媒体文件。
9、 一种节目制作分区, 其特征在于, 该节目制作分区包括录制服务器、 节目制作工作站、 节目分类管理服务器、 数据库、 节目信息获取服务器和节目 发布服务器;
所述录制服务器, 用于对直播的节目进行录制, 并存储各个节目的媒体文 件;
所述节目制作工作站,用于根据所述录制服务器存储的各个节目的媒体文 件, 生成关于录制的所有节目的节目单,将所述节目单发送给所述节目分类管 理服务器;
所述节目分类管理服务器,设置每个分类的匹配条件, 根据每个分类的匹 配条件,对所述节目单包含的节目进行分类,对应每个分类分别生成节目列表, 存储到数据库中, 将数据库中存储的节目列表发送给所述节目信息获取服务 器;
所述节目信息获取服务器,用于根据接收的由所述节目分类管理服务器发 送的节目列表,在录制服务器中获取相应节目的媒体文件,对获取到的媒体文 务器, 接收所述节目发布服务器发送的 EPG, 传送给机顶盒; 接收机顶盒发 送的包含请求播放的节目的点播命令, 所述请求播放的节目是用户从 EPG的 某一分类的节目列表中选择出来的,所述节目信息获取服务器从緩存的媒体文 件中查询出该请求播放的节目的媒体文件, 发送给机顶盒;
所述节目发布服务器, 用于接收所述节目信息获取服务器发送的节目列 表, 将节目列表发布到 EPG, 将 EPG传送给所述节目信息获取服务器。
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