CN111581938A

CN111581938A - Courseware making and editing method with multi-source content and server

Info

Publication number: CN111581938A
Application number: CN202010570361.5A
Authority: CN
Inventors: 程浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2020-08-25

Abstract

The invention discloses a courseware making and editing method of multi-source content, which comprises the following steps: dispersing the slide file into an independent and ordered picture set according to page numbers; when the slide shows, inputting video/audio in real time to explain the slide presentation content; meanwhile, monitoring the slide playing page number switching time, and generating a page number-page number timestamp comparison table of the slide source file; cutting off video/audio into a plurality of video/audio playing source files according to the time stamps, wherein the video/audio playing source files are associated with corresponding slide page numbers through a page number-page number time stamp comparison table; and the content editor carries out editing processing on the obtained video/audio playing source file according to the slide page number. According to the invention, through the combination of multiple information sources, the contents are made and shared in an interactive synchronous playing mode, the courseware making cost in knowledge sharing is reduced, the content making efficiency and effect are improved, and the interaction of learning is improved.

Description

Courseware making and editing method with multi-source content and server

Technical Field

The invention belongs to the technical field of software, and particularly relates to a method for making, editing and playing courseware of multi-source information (content) aiming at online knowledge and content sharing.

Background

In the field of online knowledge sharing, various content display modes such as pictures, characters, voice, videos and the like can assist in completing the explanation of complex knowledge principles and logic. Sharers often prepare slide materials in advance, and record videos/audios synchronously when sequentially explaining slides, and at the moment, the instructor is required to complete the process at one time, otherwise, the instructor records the slides again, or edits and clips the videos/audios through expensive software, so that great cost is brought to curriculum making. Meanwhile, in the learning process, audience groups are passively accepted, and cannot ask questions and obtain replies to the current lecture content in time, so that the interaction efficiency between the sharers and the audiences is extremely low.

Disclosure of Invention

In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a method for making and sharing content in an interactive synchronous playing manner by combining various information sources, using various information sources such as video, audio, animation, slides, characters, pictures, etc. as carriers of the content, so as to reduce the cost of making courseware in knowledge sharing, improve the efficiency and effect of making content, and improve the interaction of learning, especially for the field of online education and knowledge sharing.

In order to achieve the above object, the present invention provides a courseware making and editing method with multi-source content, comprising the following steps:

(a) the content editor disperses the slide file into an independent and ordered picture set according to the page number;

(b) when the slide shows, inputting video/audio in real time to explain the slide presentation content; meanwhile, the content editor monitors slide playing page number switching time and generates a page number-page number timestamp comparison table of the slide source file;

(c) the content editor cuts video/audio into a plurality of video/audio playing source files according to the time stamps, and the video/audio playing source files are associated with corresponding slide page numbers through a page number-page number time stamp comparison table;

(d) the content editor edits the video/audio playback source file obtained in step (c) for a slideshow page number, the editing including modifying/deleting the video/audio playback source file associated with the particular slideshow page number.

Further, in the step (d), the method further comprises: the content editor also carries out editing processing on the slides with specific page numbers; the editing includes modifying or deleting slides for a particular page number.

Further, before editing the courseware, confirming the access right of the current client login user, wherein the access right comprises: guests, audiences, and sharers; when the access right of the login user is the audience, the content editor only supports: receiving the input of a user, and adding text/picture/voice/video to the slide with the current page number as the content comment of the current slide; when the access right of the login user is a sharer, the content editor supports: receiving the input of a user, and modifying or deleting the source file of the slide with the current page number in real time; and/or adding text/picture/voice/video to perform supplementary comment or reply comment on the content of the current page number.

Further, for a particular authorized user, downloading of the original video, audio, slide files is allowed.

Further, the editing further comprises: and after the slide show is finished, switching slide page numbers or jumping to the specified slide page numbers for editing.

Further, in step (a), the pictures in the picture set are scalar pictures recognizable to a computer; generating a set of scalar pictures having different sizes and resolutions for each page; in step (c), for each page number, a set of video/audio files with different code rates, formats and resolutions is generated to adapt to different playing conditions.

Further, when playing courseware, the content player loads one or more source file types with different specifications according to the equipment, network conditions and/or user preferences of the current client, sequentially or jumps to a specified page number, and synchronously plays the content of the specified source file of the associated page number.

Further, in step (b), the content editor accepts a recording input from the audio and/or video input device after the video and/or audio input device is opened by the client, and generates a corresponding video and/or audio source file.

Further, the courseware making and editing method of the multi-source content further comprises the following steps: performing preview playing on the playing source file loaded in the step (e), wherein the preview playing refers to: and the picture thumbnail with the minimum size is loaded and generated, so that the user can conveniently jump randomly or play the designated page number.

Furthermore, the present invention relates to a computer-readable non-transitory storage medium comprising computer-readable instructions which, when read and executed by a computer, cause the computer to perform any of the above-described methods.

Furthermore, the invention relates to a server, wherein the server comprises a processor and a memory for storing a computer program which, when executed by the processor, implements any of the above methods.

Therefore, the invention has the following advantages:

1. in knowledge sharing or online education, the slides are dispersed into independent and ordered pictures according to the page numbers by taking slide playing as a core, the pictures are automatically cut according to the timestamps corresponding to the playing page numbers of the slides, and according to the switching of the slide page numbers, a user can explain or comment the content of the current slide page in a video, audio, picture or character mode and the like, wherein the explanation or comment comprises the addition, deletion and adjustment of the content of the video, audio, character or picture of the current slide page and the playing sequence of the content, so that the content making efficiency of a content creator is effectively improved.

2. In the recording process taking the slide as the core, the user (sharer) can jump to a certain page of the slide according to the requirement, delete, add and modify the descriptions of audio, video, characters and the like of the slide page, and greatly improve the efficiency and effect of content production. Meanwhile, the audience can ask questions or comment on a certain page of slide content in the modes of characters, voice, pictures and the like, and can obtain responses of the sharers and other audiences in the modes of voice, characters, pictures and the like, so that the interaction efficiency of the content audience and the content producer is effectively improved.

3. The invention sets picture sets with slides having different resolutions or formats, sets playing source files with different types or code rates or resolutions, can automatically play according to network conditions or autonomous selection of audiences, skip slide page number playing, check/comment contents and the like, and can select 1-3 sources (slide source/video source/audio source/text source) according to self network conditions and learning habits, thereby increasing the application scene of knowledge sharing, further utilizing the fragmentization time of audience groups, improving the learning efficiency and increasing the learning subjective activity.

Drawings

FIG. 1 is a schematic flow chart of a multi-source synchronous composite playing method according to the present invention;

FIG. 2 is a diagram illustrating content processing of a multi-source synchronous composite playback method according to the present invention;

fig. 3 is a schematic diagram of content access of the multi-source synchronous composite play method according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, some embodiments of the present application will be described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The invention provides a method for making, storing and playing multi-source synchronous composite content applied to the field of knowledge sharing or online education, which comprises the following steps with reference to fig. 1:

(a) the slide file source is discretized by page number into independent, ordered sets of pictures of different sizes.

(b) And recording videos and audios while playing the slide file, and generating a logical page number-page turning timestamp comparison table of the slide source file.

(c) And acquiring a video/audio playing source file, associating the playing source file with a slide specific page number, and cutting the video/audio into video/audio segments corresponding to the page number according to a logical page number-page turning timestamp comparison table.

(d) The computer files corresponding to original slide files, discrete slide pictures, audio clips and video clips are stored in a distributed computer storage system in random file names, and information such as the file names, file types, access modes, file metadata, sequence, incidence relations and the like is stored in a centralized independent structured metadata storage system.

(e) When playing, the corresponding record information of the metadata storage system is found out, a data playing source is selected according to a certain rule, the file name and the access mode of the selected content source data file are obtained, and the client directly finishes the loading and playing of the content data.

(f) When playing, the user (content producer and authorized user) can add (delete) the information such as text, picture, voice, video and the like for the appointed page number, and adjust the sequence of the plurality of contents to finish the re-editing of the contents.

Further, the multi-source synchronous compounding method further comprises the following steps: for step (a), the slide category includes Keynote, Inc. of apple, PowerPoint/Word, Microsoft corporation, WPS documents, Acrobat Reader PDF documents, Google online slides, and various HTML/XML variants based Web browser exposable document content.

Further, the multi-source synchronous compounding method further comprises the following steps: for step (a), the slides are separated into independent ordered picture sets according to page numbers, one page number can correspond to one group or multiple groups of animations, and each group of animations can be counted as an independent logical page number.

Further, the multi-source synchronous compounding method further comprises the following steps: for step (a), independent ordered sets of pictures are generated, which are computer recognizable scalar pictures (e.g., jpg/png/bmp/gif, etc.), and the scalar pictures generated by the same page number can have different sizes and resolutions.

Further, the multi-source synchronous compounding method further comprises the following steps: optionally, in step (b), the video/audio is recorded, either only the audio or both.

Further, the multi-source synchronous compounding method further comprises the following steps: optionally, in step (b), the recorded video and audio may be input via a direct recording computer screen and audio, or via a camera (built-in/external), a video camera.

Further, the multi-source synchronous compounding method further comprises the following steps: optionally for step (b), the recorded video and audio may be one or more source inputs, such as: the camera inputs videos and (or) a PC desktop records the videos, and (or) PC software audio data and (or) external 1-2 audio capturing devices input data, which correspond to different output file streams respectively.

Further, the multi-source synchronous compounding method further comprises the following steps: optionally, in step (c), the obtained video/audio may be video/audio input in real time, or may be video/audio data provided after being manually processed by an associated external video/audio editing software.

Further, the multi-source synchronous compounding method further comprises the following steps: the step (c) is as follows: making corresponding playing source files according to specific page numbers of the slide source files; or the playing source files are produced according to the page number sequence of the slide source files, and then the produced playing source files are cut off according to the time stamps switched by the page numbers to form a plurality of playing source files corresponding to the page numbers respectively.

Optionally, the multi-source synchronous compounding method further includes: editing the playback source file obtained in step (c) and a slide show of a specific page number associated with the obtained playback source file; the editing comprises the following steps: modifying or deleting the playback source file, and/or modifying the slideshow of the specific page number, and/or deleting the slideshow of the specific page number and the associated playback source file.

Optionally, the multi-source synchronous compounding method further includes: for the edit in step (c): real-time editing is performed while the slide is playing.

Optionally, the multi-source synchronous compounding method further includes: for the edit in step (c): and after the slide show is finished, switching slide page numbers or jumping to the specified slide page numbers for editing.

Further, the multi-source synchronous compounding method further comprises the following steps: selectively generating a video/audio file set with different code rates, formats and resolutions for each page after truncation in step (c) correspondingly to adapt to different playing conditions.

Further, the multi-source synchronous compounding method further comprises the following steps: and (d) storing metadata and content data. Wherein the metadata includes: the method comprises the steps of obtaining the original file name of a slide, the total page number of the slide, the original file name of a playing source file, the size and the resolution of a picture correspondingly generated by each page of the slide, a text content index, the code rate of audio and video, a coding mode, the resolution, the occupied storage space, the occupied position, an access mode and the like.

Further, the multi-source synchronous compounding method further comprises the following steps: and (e) dividing the system role into a server side, a client side, a metadata storage side and a content data storage server. The server side can load metadata information in advance, and the information is structured data.

Optionally, the multi-source synchronous compounding method further includes: in the step (e), the client may selectively load the set of specified content data (information such as picture size and resolution, audio/video resolution and code rate) according to the user preset, the client device and the network environment. Meanwhile, the corresponding content data storage can be respectively and independently placed in a plurality of accessible content storage server nodes in the network, and the server side can select a certain storage server node according to a certain strategy, including but not limited to returning to the network node closest to the client side or returning to the network node with relatively low access load, and the content data pair position and the access mode of the client side are returned.

Optionally, the multi-source synchronous compounding method further includes: selectively playing the playing source file loaded in the step (e). Optionally, the playback source file includes one or more of the following: PC desktop video source, camera video source, audio input device 1 source, audio input device 2 source, slide picture source, text source, and skip to the designated page number for playing. Optionally, multiple sources are played simultaneously, a video source, an audio source, a picture source, a text source, and superposition synchronization playing of the various sources, and as for the representation form of multi-source superposition presentation at the client, the scope of the present invention is not limited.

Optionally, the multi-source synchronous compounding method further includes: and (e) selectively performing preview playing on the playing source file loaded in the step (e). And only the picture (thumbnail) with the minimum size is loaded and generated, so that the user can conveniently jump/designate page numbers randomly for playing.

Optionally, the multi-source synchronous compounding method further includes: selectively assigning the logical page numbers accessed by the playing sources loaded in the step (e), and loading only the assigned composite source content data.

Optionally, the multi-source synchronous compounding method further includes: optionally, before the source file is played, the client login user may be compared to determine whether the user has a legal access right to the content, if the user has been authorized, the normal content data access mode and location information are returned, and the timeliness of content access is set, and if the user has not been authorized, or the timeliness of content access is invalid, the user is denied providing the relevant content access mode information or content access request.

Optionally, the multi-source synchronous compounding method further includes: optionally, in step (e), the original video, audio, and slide file may be downloaded for a particular authorized user.

For the purpose of detailed description, the following describes three aspects of multi-source content production, storage and playing respectively.

One-source and multi-source content production

The content producer prepares slide courseware in advance, including Word/PowerPoint/WPS/Keynote and other tools to complete PPT/WPS/WORD/PDF document, also including markdown grammar text which can generate HTML animation and page, and can be played by specific player. The content making steps are as follows:

the client logs in to finish user authentication; and uploading the slide courseware to the temporary storage area of the server side.

The server-side multi-source distribution code splitting module is shown in fig. 2: the slide is separated into still pictures of different sizes (e.g., 320X240,640X320,1600X900,2400X1800, etc.) according to page numbers.

The server side stores the related content data only of the slideshow picture source and the metadata information (see the multi-source content storage).

Optionally, the client opens a video or audio recording module, which can receive multiple external audio and video input devices and record on a PC desktop to generate corresponding audio, and the video stream is uploaded to the server and stored in the temporary storage area.

Optionally, the user directly plays the slide contents with the related software, and at this time, the client may intercept the page number and the timestamp information corresponding to the playing contents of the tools such as Word/PowerPoint/WPS/Keynote by using a means including but not limited to a multi-source synchronous composite device client plug-in, and generate a page number-page number timestamp comparison table.

Optionally, the client plays the picture content corresponding to the current slide on line, and when the picture corresponding to the logical page number is switched, the page number switching timestamp comparison table is automatically captured.

After finishing recording the video/audio by any optional means, transmitting the logical page number-page turning timestamp comparison table to a server side (corresponding video file and audio file at the moment) multi-source distribution code division module, wherein the module performs the following operations:

multi-source video files: generating video file fragments with different resolutions (such as 320P and 720P), different codes (such as H264 and P9) and audio (if any) file fragments with different code rates (such as 22MHz and 44 MHz) according to the logical page numbers and the page turning timestamp comparison table corresponding to the logical page numbers; the corresponding logical page number content store is updated synchronously (see multi-source content store).

Multi-source audio files: generating audio file segments (such as 22MHz, 44MHz and the like) with different code rates according to the logical page numbers and the page turning timestamp comparison table corresponding to the logical page numbers; the corresponding logical page number content store is updated synchronously (see multi-source content store).

Optionally, when the current document owner can use the client player to edit the loaded audio, video, text or picture source file, a certain logical page number can be edited, including operations of adding, deleting, modifying and adjusting the content playing sequence; the corresponding logical page number content store is updated synchronously (see multi-source content store).

Optionally, the current content authorized user may utilize the client player to perform content processing on the current logical page number, including: commenting and replying audio, video, text and pictures, wherein the commenting and replying comprise various content modes such as audio, video, text and pictures; the corresponding logical page number content store is updated synchronously (see multi-source content store).

Two, multi-source content storage

The storage of multi-source content data includes two parts: metadata storage and content data storage. Metadata core information includes, but is not limited to: the total number of pages, original slide files, original complete audio files, original video files, the size, resolution, code rate, occupied storage space, and the path and access mode of content files corresponding to each logical page. Metadata may also include, and is not limited to: the file name of the video/audio clip in each logical page and the different code rate/resolution contrast relation thereof, and the file name of the slide picture and the corresponding relation of the different sizes and resolutions thereof; the metadata can be written into a structured (a record mode such as json/xml/txt/database data table) independent storage system; the content data comprises text/video/audio/slide files, the content data is stored in N (N > ═ 1) parts in a redundant mode in content storage servers accessible in a network in a file mode, the N parts are respectively placed in different content storage servers, and the access to the corresponding content data needs to be accessed by a terminal client through providing an authorization signature of the relevant file.

The basic definition format of the metadata is as shown in table one:

(watch one)

The steps of memory storage and production editing are often interleaved, the important characteristics are atomicity and instantaneity of metadata change, when a plurality of clients play content at the same time, content update generated by other users can be seen in real time, and failure of client loading content due to inconsistency of metadata and content data is avoided. The basic steps of content storage and update are described as follows:

(a) and the server side initializes the metadata of the newly added document and records the current user ID.

(b) Writing original slide, video (optional) and audio (optional) files into a plurality of independent file systems in a multi-backup (redundant) mode, updating a global data area of metadata, filling position information and access modes of the original slide, the video and the audio files, and finally atomically writing the metadata into an independent metadata storage system.

(c) Optional bulk add logical pages: the system firstly confirms that the current user identity is the owner of the document, obtains a content logical page list, and pictures, audio, video and file contents with different specifications corresponding to each logical page through the content making stage, and operates according to the following steps:

traversing each logical page in sequence;

obtaining a content data file corresponding to the corresponding logical page number;

randomly selecting N (N > ═ 1) data storage servers for each data file, and respectively storing the files in the N servers; the process of storing the content data file to the N servers can be carried out in parallel, also can be carried out in series, also can be carried out in a part of parallel and a part of series, and all belong to the appointed operable behavior of the invention;

adding a record corresponding to information such as single data file, type, specification, storage file path, server access mode set and the like in the current logical page number;

acquiring a next content data file;

adding related logical page number information in the metadata to obtain the next logical page number;

and seventhly, updating the global data area of the metadata, and atomically writing the metadata information into an independent metadata storage system.

(d) A single logical page may optionally be added: the system firstly confirms that the current user identity is the owner of a document, randomly and redundantly writes content data (picture/character/video/audio) files corresponding to logical pages into N (N > ═ 1) independent data storage servers, respectively obtains the complete file name and access mode information of the content in each independent system, newly adds logical page metadata records in a server-side memory, the logical structure of a metadata logical page recording area is shown as a table I, one logical page can be selected to correspond to a plurality of data types, one data type can be selected to correspond to a plurality of specifications (definition, code rate, size and the like), and one specification can be selected to correspond to files with completely consistent contents at a plurality of physical access positions. Then updating the global data area (total number of page numbers, modification time and the like) of the metadata in the memory; and finally atomically writing the metadata in the memory into an independent metadata storage system.

(e) Optional delete logical pages: the system firstly confirms that the current user identity is the owner of the document, reads the metadata record of the appointed document from the metadata storage server and stores the metadata record into the memory of the server, searches the logic page record appointed to be deleted in the memory of the server, copies the logic page record into the temporary memory storage area, then the logical page record is deleted from the memory metadata, and the metadata global data area (page number total, modification time, etc.) in the memory is updated, and writing back the metadata records in the memory atomically into an independent metadata storage system, and finally, delaying the content data stored in different independent systems for a period of time (ensuring that no one is accessing the content file) according to the logical page number records (the logical page number records to be deleted) in the temporary memory storage area, and sequentially deleting the corresponding physical files according to a complete path and an access mode.

(f) Optional edit logical pages: reading the metadata record of the appointed document from the metadata storage server to a server memory, searching the appointed logic page record in the server memory, and at the moment, the user can perform the sequence operation of adding/deleting/modifying/adjusting to the content:

adding new contents: after the system confirms the identity of the current user and has document viewing and editing rights, multi-backup (redundancy) of content data is written into N (N is 1) content storage servers, information such as complete paths, access modes and the like of the content data is updated to corresponding logical pages, and metadata is atomically written back into the metadata storage servers;

and secondly, deleting the content: after the system confirms the identity of the current user and is the original owner of the current content to be deleted, copying the corresponding content record entry to be deleted in the temporary storage area of the logical page into a temporary memory, removing the corresponding entry on the logical page of the metadata, atomically writing the metadata in the memory back into a metadata storage server, and sequentially deleting the corresponding physical files of the content data stored in different independent systems according to the entry record (the content to be deleted) in the temporary memory after delaying for a period of time (ensuring that no one is accessing the content file) according to a complete path and an access mode;

thirdly, modifying the content: the system confirms the current user identity, and after the system is the original owner of the current content to be modified, the content record items to be modified of the logical pages to be modified in the memory are copied into the temporary memory, the modified content data are written into N (N > -1) content storage servers in a multi-backup way, the information of the complete paths, the access ways and the like of the content data are updated to the corresponding logical pages, the content metadata records to be modified are replaced, the metadata global data area (the total number of pages, the modification time and the like) in the memory is updated, the metadata are atomically written back into the metadata storage servers, finally, according to the item records (the content to be modified) in the temporary memory, after a period of delay (ensuring that no person is accessing the content file), the content data corresponding to different independent systems are stored according to the complete paths and the access ways, sequentially deleting the corresponding physical files;

(g) adjusting sequence: the system confirms the identity of the current user, is the owner of the current document, directly updates the metadata record information sequence in the logical page in the memory of the server, updates the metadata global data area (the total number of page numbers, the modification time and the like) in the memory, and finally atomically writes the metadata back to the metadata storage server;

(h) optional modification of document properties: the system first confirms that the current user identity is the owner of the document, and optional updated document attributes include, but are not limited to: topic, open or not, content tag, content profile, classification; and finally atomically writing the metadata back to the metadata storage server.

Three, multi-source content playback

When a user client requests to play certain document content, the player automatically recommends different source synchronous playing/display combinations for the user according to the factors of user network condition, personal preference setting, display equipment size and the like. The user may also specify one or more sources (e.g., original video 1, original video 2, video source 2, audio source 1, slideshow picture source + audio source 2+ text source, etc.) by himself, and play sequentially from the first page (or specify a logical page). At this time, the content metadata information indicated by the data basic features of the content production and storage is used for finding out the corresponding playing source file and the access mode and the access position information thereof, and loading and content playing of the source data file are completed.

The method comprises the following basic steps:

(1) the client user sends a document request to the server, optionally containing logical page numbers, user personal identification information, device (screen size, etc.) network information (wifi network/4G/3G network, etc.) and personal preference settings (specifying one or more data sources and their data file specifications, such as resolution, bit rate, etc.).

(2) Reading metadata information of a specified document in a metadata storage server; according to the global information of the document metadata area, whether the document metadata area is public content or not, if the document metadata area is the public content, the downward execution is continued; in the case of non-public or limited-public content, it is required to confirm the user's personal identity and whether there is access to the current document, such as: whether the current user is a content creator, whether the current user pays related fees for the content, and the like; and if no document access authorization exists, the client is informed of illegal access.

(3) After confirming that a user has document authorization, preferentially combining with a user client to request personal preference setting, if no user personal preference data exists, optionally obtaining a data source and the specification thereof according to a table two rule (not limited to the table two rule), obtaining a corresponding content data complete path and an access mode from metadata by a server, setting fixed-time access validity authorization aiming at the current user for content file access, and returning authorization codes, complete paths and access mode information to the client.

(watch two)

(4) The specific operation flow of the authorization code comprises the following steps: the file to be accessed, the current time, the effective access duration and the user identification information of the server are sent to the file storage server where the corresponding file is located.

(5) The file storage server stores the file and the user identification information as records, and sets TTL (time to Live), wherein the time length of the TTL is the current time plus the effective access time length, and when the TTL is expired, the current records are automatically cleared.

(6) The file server signs the file to be accessed and the user identification information and returns the file to the server side.

(7) And the server side returns the file access mode, the file name, the access failure time and the signature data to the client side.

(8) And the client transmits the own identity identification information to the specified data storage server according to the file access mode, the file name and the signature data returned by the server, and acquires the corresponding file content.

(9) If the current time exceeds the access failure time, the data file storage server refuses the user to access.

(10) The data file storage server will deny the user access provided that the access record/file requested by the current user does not exist.

(11) If the access to the data file storage server fails, the client needs to send the access request to the current logical page resource to the server again; and acquiring the updated access mode and file path.

Optionally, when the user plays the content, the user may select to automatically load the content request of the next logical page number when the current logical page number is played according to the logical page number from 1 to the final page number.

Optionally, the content of the specified source combination is played, or the content can be played by jumping to the specified page number. During the playing process, the user can switch page numbers or select different combinations of sources at any time. The content corresponding to each page can be played and displayed simultaneously or according to the sequence set by the user when creating the content.

Optionally, when the user plays the content, the user may choose to continue to add text/picture/voice/video as a content supplement to the current index page. Specifically, a user (including a sharer and an audience) opens common audio/video recording software, explains the content presented on the current page of a slide, or makes comments on the content on the current page and replies related comments (in the form of characters/pictures/voice, video and the like).

Optionally, the page number and the timestamp corresponding to the record, the recorded source file, the comment content, and the like are uploaded to the composite bitstream playing server, which may be referred to as a content production/editing method. The description of the steps is only intended to emphasize that when the content is played, the content can be edited, produced and stored completely at the same time, and the steps are also an important part in the interactive teaching involved in the invention.

The present application also relates to a computer-readable storage medium having stored thereon a computer program which, when being executed by a processor, is able to carry out any of the above method embodiments of the present application.

Those skilled in the art will understand that all or part of the steps in the method according to the above embodiments may be implemented by a program instructing related hardware to complete, where the program is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, etc.) or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. A courseware making and editing method of multi-source content is characterized by comprising the following steps:

(b) when the slide shows, inputting video/audio in real time to explain the slide presentation content; meanwhile, the content editor monitors the slide playing page number switching time to generate a page number-page number timestamp comparison table of the slide source file;

2. The method of claim 1, wherein in step (d), further comprising: the content editor also carries out editing processing on the slides with specific page numbers; the editing includes modifying or deleting slides for a particular page number.

3. The method of claim 2, wherein prior to editing the courseware, access rights of a current client login user are confirmed, the access rights comprising: guests, audiences, and sharers;

when the access right of the login user is the audience, the content editor only supports: receiving the input of a user, and adding text/picture/voice/video to the slide with the current page number as the content comment of the current slide;

when the access right of the login user is a sharer, the content editor supports: receiving the input of a user, and modifying or deleting the source file of the slide with the current page number in real time; and/or adding text/picture/voice/video to perform supplementary comment or reply comment on the content of the current page number.

4. The method of claim 3, wherein the downloading of original video, audio, slide files is allowed for a particular authorized user.

5. The method of claim 1, wherein the editing further comprises: and after the slide show is finished, switching slide page numbers or jumping to the specified slide page numbers for editing.

6. The method of claim 1, wherein,

in step (a), the pictures in the picture set are scalar pictures recognizable to a computer; generating a set of scalar pictures having different sizes and resolutions for each page;

in step (c), for each page number, a set of video/audio files with different code rates, formats and resolutions is generated to adapt to different playing conditions.

7. The method of claim 6, wherein the content player loads one or more source file types of different specifications, sequentially or jumps to specified page numbers, and synchronously plays specified source file content of the associated page numbers while playing courseware according to the current client's device, network conditions and/or user preferences.

8. The method of claim 1, wherein in step (b), the content editor accepts a recorded input from the audio and/or video input device after the video and/or audio input device is opened by the client, and generates a corresponding video and/or audio source file.

9. The method of claim 1, further comprising: performing preview playing on the playing source file loaded in the step (e), wherein the preview playing refers to: and the picture thumbnail with the minimum size is loaded and generated, so that the user can conveniently jump randomly or play the designated page number.

10. A server, wherein the server comprises a processor and a memory for storing a computer program which, when executed by the processor, implements the method according to any one of claims 1 to 9.