CN104954850A - Nonlinear editing software dispatching method and device - Google Patents

Abstract

An embodiment of the present invention provides a scheduling method and device for nonlinear editing software, wherein the method includes: receiving a user operation request; wherein the user operation request includes: a request for previewing a clipped audio and video file or project file 1. A request for previewing the clipped video frame or engineering frame; determining the type of user operation request; invoking a scheduling policy corresponding to the type according to the determination result to obtain and play the data requested by the user operation request from the server; When the user operation request is a request for previewing edited audio and video files or project files, call the play strategy; when the user operation request is a request for previewing edited video frame or project frame, call the search strategy. Through the embodiment of the present invention, the user can select the desired material at any time without downloading the material into the production system, and download the edited audio and video directly to the production system, that is, the browser client.

Description

Scheduling method and device for nonlinear editing software

technical field

The invention relates to the technical field of video editing and processing, in particular to a scheduling method and device for nonlinear editing software.

Background technique

Video editing by traditional TV stations is generally done through professional editing workstations with cards. These editing workstations are generally expensive and resources are tight, and they need to be billed according to the usage time. The entire editing process is divided into material selection, special effects production, material packaging and other links, and among them, the time spent on material package selection occupies a high proportion, especially in some program editing that requires less special effects, material selection The proportion of time taken up even exceeds 50%. In fact, the main task of the material selection process is to find the material related to the production of the program, manage and select the material fragments to be used, and lay these material fragments on the story board in order. This process is not necessary in professional If this process can be separated from the editing workstation, it will greatly improve the work efficiency of the TV station and save the precious production resources of the TV station.

With the development of TV station network editing, materials no longer use traditional video tapes as storage media, but are stored in network storage as digital media. At the same time, media resource management systems have emerged to manage materials uniformly. The emergence of the media resource management system provides more material choices for the production staff, but also increases the operation steps of the production staff. The production staff first needs to log in to the retrieval system of the media resource management to retrieve the required materials and download them to the production system, and then perform a simple search in the production system, laying the required material fragments into the storyboard in order to complete Make audio and video editing.

The existing network-based editing scheme has actually gone through two retrieval processes during the entire production process, which consumes a lot of energy of the production staff and also creates a workload for the media resource management system. In addition, the required material needs to be downloaded to the production system, and then further searched to determine the real required material, which increases the transmission burden of the production system and the retrieval system of media resource management.

It can be seen that the technical problem to be solved urgently is: to provide a new editing solution, so that users no longer need to download materials from the retrieval system when editing audio and video, and then perform simple retrieval in the production system to upload the required files. The clips are layered into the storyboard in order to complete the production process. Instead, the user can select the desired material at any time without downloading the material into the production system, and download the edited audio and video directly to the production system, that is, the browser client.

Contents of the invention

In view of the above-mentioned problems existing in the above-mentioned existing network editing solutions, the present invention is proposed to provide a scheduling method and device for non-linear editing software that overcome the above-mentioned problems or at least partly solve the above-mentioned problems.

According to one aspect of the present invention, a scheduling method of nonlinear editing software is provided, including: receiving a user operation request; wherein, the user operation request includes: a request for previewing a clipped audio and video file or project file; A request for previewing clipped video frames or engineering frame frames; determining the type of the user operation request; invoking a scheduling strategy corresponding to the type according to the determination result to obtain the data requested by the user operation request from the server and play it ; Wherein, when the user operation request is a request for previewing audio and video files or project files of clipping, the playback strategy is called; when the user operation request is a request for previewing clipped video frame or project frame , calling the search strategy.

Preferably, when the user operation request is a request to preview clipped audio and video files or engineering files, the step of invoking the play strategy to acquire and play the data requested by the user operation request from the server includes: sending a play request, wherein, the playback request carries the audio and video file information to be previewed, or the data structure information of the project file to be previewed; the data structure information of the project file includes multiple pieces of audio and video material information and the arrangement relationship of each piece of audio and video material information; receive the audio and video stream corresponding to the audio and video file information returned by the server, or the audio and video stream corresponding to the data structure information of the project file; send the received audio and video stream to the video player window media player to play.

Preferably, before the step of sending a play request to the server, the method further includes: judging whether the server has been connected; if not, establishing a connection with the server, and saving the edited project file The data structure information of is synchronized to the server.

Preferably, when the user operation request is a request to preview clipped video frames or engineering frame frames, the step of invoking the search strategy to acquire and play the data requested by the user operation request from the server includes: sending A search request, wherein the search request carries the information of the video frame to be previewed, or the information of the engineering frame to be browsed; receiving the video frame returned by the server according to the set frequency information, or the video stream corresponding to the information of the project picture frame; the received video stream is sent to the media player in the video player window for playback, so as to realize the preview of the picture frame.

Preferably, the playback request and search request sent to the server and the received audio and video streams and video streams returned by the server are all carried out between the server and the browser client in accordance with the protocol data packets of the set format. Transmission; wherein, the format of the protocol data packet is: the first field is the command identifier, the second field is the payload data length, and the third field is the payload data.

According to another aspect of the present invention, a scheduling device for non-linear editing software is also provided, including: a receiving module, configured to receive user operation requests; wherein, the user operation requests include: editing audio and video files or projects A request for previewing a file, a request for previewing a clipped video frame or an engineering frame; a determination module, configured to determine the type of the user operation request; a calling module, configured to invoke the type corresponding to the type according to the determination result The scheduling strategy obtains the data requested by the user operation request from the server and plays it; wherein, when the user operation request is a request for previewing the clipped audio and video files or project files, the playback strategy is invoked; when the user When the operation request is a request for previewing the edited video frame or engineering frame, the search strategy is invoked.

Preferably, when the user operation request is a request for previewing the clipped audio and video files or project files, the calling module invokes the play strategy to obtain and play the data requested by the user operation request from the server: send the play to the server request, wherein, the playback request carries the audio and video file information to be previewed, or the data structure information of the project file to be previewed; the data structure information of the project file includes multiple pieces of audio and video material information and the arrangement relationship of each piece of audio and video material information; receive the audio and video stream corresponding to the audio and video file information returned by the server, or the audio and video stream corresponding to the data structure information of the project file; send the received audio and video stream to the video player window media player to play.

Preferably, the scheduling device of the nonlinear editing software further includes: a connection module, used to determine whether the server has been connected before the calling module sends a playback request to the server; The server establishes a connection, and the data structure information of the edited project file is synchronized to the server.

Preferably, when the user operation request is a request to preview clipped video frames or engineering frame frames, the calling module invokes the search strategy to obtain the requested data from the server and play it: to The server sends a search request, wherein the search request carries the information of the video picture frame to be previewed, or the information of the engineering picture frame to be browsed; and receives the information related to the video frame returned by the server according to the set frequency The information of the picture frame, or the video stream corresponding to the information of the project picture frame; the received video stream is sent to the media player in the video player window for playback, so as to realize the preview of the picture frame.

Preferably, the playback request and search request sent to the server and the received audio and video streams and video streams returned by the server are all carried out between the server and the browser client in accordance with the protocol data packets of the set format. Transmission; wherein, the format of the protocol data packet is: the first field is the command identifier, the second field is the payload data length, and the third field is the payload data.

Compared with the prior art, the present invention has the following advantages:

In the method and device for scheduling non-linear editing software provided by the embodiments of the present invention, the browser client can directly receive the user's selection of materials stored in the server without downloading the material package to the browser client side, which can realize the The editing of audio and video files, therefore, not only saves the production effort of the production staff, but also does not bring storage burden to the browser client. Not only that, the user can also request the browser client to directly download the audio and video files or video frame frames edited by the user from the server side to the browser client through the operation request through the corresponding scheduling strategy for the user to preview, which is convenient for the user to operate . Because only the edited audio and video data is downloaded, compared with the existing editing solutions that need to download a large number of useless material packages, it can effectively reduce the data transmission burden between the browser client and the server.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the specific embodiments of the present invention are enumerated below.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiment. The drawings are only for the purpose of illustrating a preferred embodiment and are not to be considered as limiting the invention. Also throughout the drawings, the same reference numerals are used to designate the same components. In the attached picture:

FIG. 1 is a flow chart of steps of a scheduling method of nonlinear editing software according to Embodiment 1 of the present invention;

FIG. 2 is a flow chart of steps of a scheduling method of nonlinear editing software according to Embodiment 2 of the present invention;

Fig. 3 is a schematic diagram of the interaction between the browser client and the server under the playing strategy in the second embodiment;

FIG. 4 is a schematic diagram of the interaction between the browser client and the server under the search strategy in Embodiment 2;

Fig. 5 is a structural block diagram of a scheduling device of nonlinear editing software according to Embodiment 3 of the present invention;

Fig. 6 is a structural block diagram of a scheduling device for nonlinear editing software according to Embodiment 4 of the present invention.

Detailed ways

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

Embodiment one

Referring to FIG. 1 , it shows a flow chart of steps of a scheduling method for nonlinear editing software according to Embodiment 1 of the present invention.

The scheduling method of the non-linear editing software of the embodiment of the present invention comprises the following steps:

Step S102: Receive a user operation request.

The user, that is, the producer, can preview the edited audio and video files or project files during the editing process of the audio and video files or project files. When previewing, it may be a certain segment of video in the preview file, or a certain picture frame of the preview file. Then, the user needs to issue a corresponding operation request, so that the browser client can process the request and provide the user with a corresponding preview service.

The user operation request may be any appropriate operation, for example, clicking a clipped audio and video file, or clicking a certain picture frame in a clipped audio and video file, and the like.

Wherein, the user operation request includes: a request for previewing clipped audio and video files or project files, and a request for previewing clipped video frame frames or project frame frames.

Step S104: Determine the type of user operation request.

After receiving the user's operation request, the browser client judges the type of the operation request, and then invokes the corresponding scheduling strategy according to the type.

Step S106: According to the determination result, the scheduling strategy corresponding to the type is invoked to acquire the data requested by the user operation request from the server and play it.

Wherein, when the user operation request is a request for previewing edited audio and video files or project files, the play strategy is invoked; when the user operation request is a request for previewing edited video frame or engineering frame, the search strategy is invoked.

The playback strategy and the search strategy can be set by those skilled in the art according to actual needs, which is not specifically limited in this embodiment.

Through the scheduling method of the nonlinear editing software provided in this embodiment, the browser client can directly receive the user's selection of the material stored in the server, without downloading the material package to the browser client side, the audio and video can be edited. Therefore, it not only saves the production effort of the production staff, but also does not bring storage burden to the browser client. Not only that, the user can also request the browser client to directly download the audio and video files or video frame frames edited by the user from the server side to the browser client through the operation request through the corresponding scheduling strategy for the user to preview, which is convenient for the user to operate . Because only the edited audio and video data is downloaded, compared with the existing editing solutions that need to download a large number of useless material packages, it can effectively reduce the data transmission burden between the browser client and the server.

Embodiment two

Referring to FIG. 2 , it shows a flow chart of steps of a scheduling method for nonlinear editing software according to Embodiment 2 of the present invention.

The scheduling method of the non-linear editing software of the embodiment of the present invention comprises the following steps:

Step S202: the browser client receives a user operation request.

Wherein, the user operation request includes: a request for previewing clipped audio and video files or project files, and a request for previewing clipped video frame frames or project frame frames.

An audiovisual file is a file that contains both audio and video. A project file is a file composed of many audio and video files according to the set sequence.

It should be noted that the user operation request can be any appropriate operation, for example: click on a clipped audio and video file, or click on a certain picture frame in the clipped audio and video file, or click on a certain Clipped project files and other operations.

In this embodiment, the browser client adopts Silverlight (Silver Light Technology) to design the layout, and the whole interface is composed of a video playback window, a timeline window and a special effect control window, wherein a drop-down window can be covered on the special effect control window for Clip footage for management. The server-side deployment is divided into two parts, one is the flow control engine service (Streaming Server), and the other is the packaging service (Compile Server). Among them, Streaming Server is the core of communication and playback. The reading and decoding of files, rendering of special effects and subtitles, real-time processing and beat control are all realized on this service. The server provides TCP (Transmission Control Protocol, Transmission Control Protocol) port as the connection port of the browser client. Compile Server is mainly used to provide services for packaging and outputting audio and video files or project files after editing. At the same time, it also provides the ability to encode and write audio and video files or project files.

Step S204: The browser client judges the type of user operation request to determine the type of user operation request; when the type of operation request is a request for previewing the clipped audio and video files or project files, then perform step S206, when When the user operation request is a request for previewing a clipped video frame or engineering frame, step S208 is executed.

On the browser client side, there are two mechanisms for video display, one is the playback mechanism, which plays clipped video files or project files, that is, the Play mechanism; the other is the mechanism for viewing a certain frame, that is, the Seek mechanism . Among them, the play strategy is called under the Play mechanism, and the search strategy is called under the Seek mechanism. The reason why the browser client in the embodiment of the present invention sets the Seek mechanism is to achieve the accuracy of the picture frame preview, but the Media Element media player component that comes with Silverlight cannot do this.

Step S206: When the type of the operation request is a request for previewing clipped audio and video files or project files, the browser client invokes the play strategy to obtain and play the data requested by the user operation request from the server.

A preferred method of invoking the playback strategy to obtain and play the data requested by the user operation request from the server is as follows:

S1: The browser client sends a play request to the server, wherein the play request carries the audio and video file information to be previewed, or the data structure information of the project file to be previewed; the data structure information of the project file includes multiple pieces of audio and video material information and Arrangement relationship information of each audio and video material.

When the server receives the playback request, it searches for the information requested by the playback request, packages it and returns it to the browser client. Wherein, the returned information may be an AV Stream, that is, an AV stream.

S2: The browser client receives the audio and video stream corresponding to the audio and video file information or the audio and video stream corresponding to the data structure information of the project file returned by the server.

S3: The browser client sends the received audio and video streams to the media player in the video player window for playback.

It should be noted that the above-mentioned preferred implementation method is executed on the basis of establishing a connection between the client browser and the server, and if it is uncertain whether a connection relationship has been established between the two, the browser client needs to execute the following The above steps:

Before the browser client sends a playback request to the server, it judges whether it is connected to the server; if it is not connected to the server, it establishes a connection with the server, and synchronizes the data structure information of the edited project file to the server.

Step S208: When the user operation request is a request to preview clipped video frames or engineering frame frames, the browser client invokes the search strategy to obtain and play the data requested by the user operation request from the server.

A preferred method of invoking the search strategy to obtain and play the data requested by the user operation request from the server is as follows:

S1: The browser client sends a search request to the server, wherein the search request carries information about a video frame to be previewed, or information about an engineering frame to be browsed.

After receiving the play request, the server searches for the information requested by the play request, decodes and packs it, and returns it to the browser client. Wherein, the returned information may be the video data corresponding to the picture frame, and the received video stream is sent to the media player in the video player window for playing, so as to realize the preview of the picture frame.

After the server receives the Seek request, it reads and decodes the play request, only performs Seek on the video data corresponding to the picture frame, and does not perform the Seek on the audio data corresponding to the picture frame, and repeats the P frame sending of the decoded data in the form of an IP frame. Back to the browser client, this creates a video stream VStream, which is a virtual data stream, which ensures that the Media Element can be played and displayed normally, and only the frame selected by Seek can be accurately displayed.

S2: The browser client receives the video stream corresponding to the information of the video picture frame or the information of the engineering picture frame returned by the server according to the set frequency.

Wherein, the set frequency can be set by those skilled in the art according to actual needs, and there is no specific limitation in this embodiment.

S3: The browser client sends the received video stream to the media player in the video player window for playback, so as to realize the preview of the picture frame.

After the browser client receives the VStream, it sends it to the MediaElement component of the video player window for playback. Of course, since the received data are all the data of the same picture frame, the effect of playing is a still picture, reaching the Seek level. The effect of this picture frame.

It should be noted that in the case of fast Seek, in order to ensure fluency, some data from Seek will be discarded during the processing according to the situation of sending and receiving data.

For the operation of the editing interface, the browser client needs to synchronize the data structure information of the project with the server. This synchronization is one-way, and only the browser client sends a synchronization request to the server. In order to prevent problems such as user misoperation, The mechanism also provides an Undo/Redo process to ensure the smoothness of editing. Among them, the Undo/Redo process is about undoing the editing of the edited audio and video files, project files, or a certain picture frame in the file.

It should be noted that, in order to realize the communication between the browser client and the server, this embodiment designs a set of protocols, which are defined in XML (Extensive Markup Language) format, which is simple and convenient for expansion and modification. Servers and servers follow this protocol for communication.

That is to say, the playback request and search request sent by the browser client to the server and the received audio and video streams and video streams returned by the server are all carried out between the server and the browser client in accordance with the protocol data packets of the set format. Transmission; wherein, the format of the protocol data packet is: the first field is the command identifier, the second field is the payload data length, and the third field is the payload data.

Through the scheduling method of the nonlinear editing software provided in this embodiment, the browser client can directly receive the user's selection of the material stored in the server, without downloading the material package to the browser client side, the audio and video can be edited. Therefore, it not only saves the production effort of the production staff, but also does not bring storage burden to the browser client. Not only that, the user can also request the browser client to directly download the audio and video files or video frame frames edited by the user from the server side to the browser client through the operation request through the corresponding scheduling strategy for the user to preview, which is convenient for the user to operate . Because only the edited audio and video data is downloaded, compared with the existing editing solutions that need to download a large number of useless material packages, it can effectively reduce the data transmission burden between the browser client and the server.

The playing strategy, ie, the Play mechanism, and the searching strategy, ie, the Seek mechanism, in this embodiment will be described below with reference to FIG. 3 and FIG. 4 .

As shown in Figure 3, it is a schematic diagram of the interaction between the browser client and the server through the Play mechanism. The specific interaction process is as follows:

S1: The browser client determines whether to establish a connection with the server, if not connected to the server, execute S2, and if connected to the server, execute S3.

S2: If the server is not connected, the browser client connects to the server and synchronizes the project data structure and other information with the server, and then executes S3.

S3: If the server is connected, the browser client sends a Play request to the server.

Among them, the Play request can be either a Play file or a Play timeline.

S4: After receiving the Play request, the server reads and decodes the file, and sends the decoded video and audio data back to the browser client through the protocol request according to the set frequency.

Among them, the setting frequency can be set to send back to the browser client through the protocol request according to the beat of 40ms, and the continuous video and audio data sent to the browser client forms an audio and video stream AVStream until the file is played or When the browser client sends a stop request, the server doesn't send it anymore.

S5: After the browser client receives the AVStream, it sends it to the Media Element component of the video player window for playback.

While playing, the interface also needs to be refreshed, such as the position of the time code and time code line, the display interval of the time line, the state of controls such as the play button.

S6: The browser client sends a stop request to the server. When the playback stops, the process of one playback ends, and the user can continue to perform the next playback.

As shown in Figure 4, it is a schematic diagram of the interaction between the browser client and the server through the Seek mechanism. The specific interaction process is as follows:

S1: The browser client determines whether to establish a connection with the server, if not connected to the server, execute S2, and if connected to the server, execute S3.

S2: If the server is not connected, the browser client connects to the server and synchronizes information such as the data structure of the project file, and then executes S3.

S3: If the server is connected, the browser client sends a Seek request to the server.

Wherein, the Seek request can not only play a certain picture frame in an audio and video file as a Seek file, but also play a certain picture frame in a project file as a Seek timeline.

S4: After receiving the Seek request, the server reads and decodes the file, and sends the decoded video and audio data back to the browser client through the protocol request according to the set frequency.

When the server processes the Seek request, it only performs Seek on the video, does not perform audio, and sends the decoded video data back to the browser client repeatedly in the form of IP frames with P frames, which artificially creates a video stream VStream. Ensure that the MediaElement can be played and displayed normally.

S5: After the browser client receives the VStream, it sends it to the MediaElement component of the video player window for playback. Of course, since the received data are all the data of the same picture frame, the effect of playing is a still picture, reaching The effect of the frame of the Seek frame.

In the case of fast Seek, in order to ensure fluency, some data from Seek will be discarded during the processing according to the situation of sending and receiving data.

For the operation of the editing interface, the browser client needs to synchronize the data structure information of the project file with the server. This synchronization is one-way, and only the client sends a synchronization request to the server. In order to prevent problems such as user misoperation, The mechanism also provides an Undo/Redo process to ensure the smoothness of editing.

Embodiment three

Referring to FIG. 5 , it shows a structural block diagram of a scheduling device for nonlinear editing software according to Embodiment 3 of the present invention.

The scheduling device of the nonlinear editing software in this embodiment includes: a receiving module 502 for receiving user operation requests; wherein, the user operation requests include: a request for previewing clipped audio and video files or project files; Frame or engineering picture frame is previewed request; Determining module 504, is used for determining the type of user operation request; Calling module 506, is used for calling the dispatch strategy corresponding to type according to determining result and obtaining the requested data of user operation request from server And play; Wherein, when the user operation request is a request to preview the clipped audio and video files or project files, call the playback strategy; when the user operation request is a request to preview the clipped video frame or project frame, call search strategy.

Through the scheduling device of the non-linear editing software provided in this embodiment, the browser client can directly receive the user's selection of the material stored in the server, without downloading the material package to the browser client side, which can realize audio and video editing. Therefore, it not only saves the production effort of the production staff, but also does not bring storage burden to the browser client. Not only that, the user can also request the browser client to directly download the audio and video files or video frame frames edited by the user from the server side to the browser client through the operation request through the corresponding scheduling strategy for the user to preview, which is convenient for the user to operate . Because only the edited audio and video data is downloaded, compared with the existing editing solutions that need to download a large number of useless material packages, it can effectively reduce the data transmission burden between the browser client and the server.

Embodiment four

Referring to FIG. 6 , it shows a structural block diagram of a scheduling device for nonlinear editing software according to Embodiment 4 of the present invention.

The scheduling device of the nonlinear editing software in this embodiment includes: a receiving module 602 for receiving user operation requests; wherein, the user operation requests include: a request for previewing clipped audio and video files or project files; Frame or project picture frame is previewed request; Determination module 604, is used for determining the type of user operation request; Calling module 606, is used for according to the dispatching strategy corresponding to type of calling and type according to determination result and obtains the requested data of user operation request from server And play; Wherein, when the user operation request is a request to preview the clipped audio and video files or project files, call the playback strategy; when the user operation request is a request to preview the clipped video frame or project frame, call search strategy.

Preferably, when the user operation request is a request for previewing the clipped audio and video files or project files, the calling module 606 invokes the play strategy to obtain and play the data requested by the user operation request from the server: send a play request to the server, wherein , the playback request carries the audio and video file information to be previewed, or the data structure information of the project file to be previewed; the data structure information of the project file includes information on multiple audio and video materials and the arrangement relationship information of each audio and video material; the receiving server returns The audio and video stream corresponding to the audio and video file information, or the audio and video stream corresponding to the data structure information of the project file; the received audio and video stream is sent to the media player in the video player window for playback.

Preferably, the scheduling device of the non-linear editing software in this embodiment further includes: a connection module 608, which is used to determine whether the server has been connected to the server before the call module 606 sends a playback request to the server; Establish a connection and synchronize the data structure information of the edited project file to the server.

Preferably, when the user operation request is a request for previewing a clipped video frame or engineering frame, the calling module 606 invokes the search strategy to obtain and play the data requested by the user operation request from the server: send a search request to the server, Wherein, the search request carries the information of the video picture frame to be previewed, or the information of the engineering picture frame to be browsed; the video stream corresponding to the information of the video picture frame or the information of the engineering picture frame returned by the server according to the set frequency ;Send the received video stream to the media player in the video player window for playback, so as to realize the preview of the picture frame.

Preferably, the playback request sent to the server, the search request, and the received audio and video streams and video streams returned by the server are transmitted between the server and the browser client in accordance with the protocol data packets of the set format; wherein, the protocol data The setting format of the packet is: the first field is the command identifier, the second field is the payload data length, and the third field is the payload data.

The scheduling device of the nonlinear editing software in this embodiment is used to implement the corresponding scheduling methods in the foregoing first and second embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be repeated here.

The scheduling scheme for the nonlinear editing software provided herein is not inherently related to any particular computer, virtual system, or other device. Various generic systems can also be used with the teachings based on this. The structure required to construct a system having the solution of the present invention is apparent from the above description. Furthermore, the present invention is not specific to any particular programming language. It should be understood that various programming languages can be used to implement the content of the present invention described herein, and the above description of specific languages is for disclosing the best mode of the present invention.

In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure the understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, in order to streamline this disclosure and to facilitate an understanding of one or more of the various inventive aspects, various features of the invention are sometimes grouped together in a single embodiment, figure, or its description. This method of disclosure, however, is not to be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the Detailed Description are hereby expressly incorporated into this Detailed Description, with each claim standing on its own as a separate embodiment of this invention.

Those skilled in the art can understand that the modules in the device in the embodiment can be adaptively changed and arranged in one or more devices different from the embodiment. Modules or units or components in the embodiments may be combined into one module or unit or component, and furthermore may be divided into a plurality of sub-modules or sub-units or sub-assemblies. All features disclosed in this specification (including accompanying claims, abstract and drawings) and any method or method so disclosed may be used in any combination, except that at least some of such features and/or processes or units are mutually exclusive. All processes or units of equipment are combined. Each feature disclosed in this specification (including accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will understand that although some embodiments described herein include some features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of the invention. and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

The various component embodiments of the present invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art should understand that a microprocessor or a digital signal processor (DSP) can be used in practice to realize some or all functions of some or all components in the scheduling scheme of the nonlinear editing software according to the embodiment of the present invention . The present invention can also be implemented as an apparatus or an apparatus program (for example, a computer program and a computer program product) for performing a part or all of the methods described herein. Such a program for realizing the present invention may be stored on a computer-readable medium, or may be in the form of one or more signals. Such a signal may be downloaded from an Internet site, or provided on a carrier signal, or provided in any other form.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means can be embodied by one and the same item of hardware. The use of the words first, second, and third, etc. does not indicate any order. These words can be interpreted as names.

Claims (10)

1. a dispatching method for non-linear editing software, is characterized in that, comprising:

Receive user operation request; Wherein, described user operation request comprises: the audio-video document of editing or project file are carried out to the request of preview, the video pictures frame of editing or engineering image frame carried out to the request of preview;

Determine the type of described user operation request;

Call the scheduling strategy corresponding with described type according to determination result obtain from server data that described user operation request asks and play;

Wherein, when described user operation request is, when carrying out the request of preview to the audio-video document of editing or project file, call broadcast strategy; When described user operation request is, when carrying out the request of preview to editing video pictures frame or engineering image frame, call search strategy.

2. method according to claim 1, it is characterized in that, when described user operation request is when carrying out the request of preview to the audio-video document of editing or project file, call broadcast strategy and obtain data that described user operation request asks and the step play comprises from server:

Send playing request to server, wherein, in described playing request, carry the audio-video document information of preview of needing, or treat the data structure information of project file of preview; The data structure information of project file comprises the Rankine-Hugoniot relations information of multistage audio frequency and video material information and each section of audio frequency and video material;

Receive the audio/video flow corresponding with described audio-video document information that described server returns, or the audio/video flow corresponding with the data structure information of described project file;

The media player that the audio/video flow received is sent to video player window is play.

3. method according to claim 2, is characterized in that, described before server transmission playing request step, described method also comprises:

Judge whether to connect described server;

If do not connect described server, then connect with described server, and the data structure information of the project file edited is synchronized to described server.

4. method according to claim 3, it is characterized in that, when described user operation request is when carrying out the request of preview to the video pictures frame of editing or engineering image frame, call search strategy and obtain data that described user operation request asks and the step play comprises from server:

Send searching request to server, wherein, in described searching request, carry the information of described video pictures frame of preview of needing, or the information of described engineering image frame to be browsed;

Receive that described server returns according to setpoint frequency with information that is described video pictures frame, or the video flowing that the information of described engineering image frame is corresponding;

The media player of the video stream received to video player window is play, to realize the preview to image frame.

5. method according to claim 4, it is characterized in that, the protocol data that the audio/video flow that the playing request sent to described server, searching request and the described server received return, video flowing all follow setting form wraps between described server and browser client and transmits;

Wherein, the setting form of described protocol data bag is: the first field is command id, the second field is load data length, the 3rd field is load data.

6. a dispatching device for non-linear editing software, is characterized in that, comprising:

Receiver module, for receiving user operation request; Wherein, described user operation request comprises: the audio-video document of editing or project file are carried out to the request of preview, the video pictures frame of editing or engineering image frame carried out to the request of preview;

Determination module, for determining the type of described user operation request;

Calling module, obtains from server data that described user operation request asks for calling the scheduling strategy corresponding with described type according to determination result and plays;

Wherein, when described user operation request is, when carrying out the request of preview to the audio-video document of editing or project file, call broadcast strategy; When described user operation request is, when carrying out the request of preview to editing video pictures frame or engineering image frame, call search strategy.

7. device according to claim 6, it is characterized in that, when described user operation request is when carrying out the request of preview to the audio-video document of editing or project file, described calling module calls broadcast strategy when obtaining data that user operation request asks from server and play:

Send playing request to server, wherein, in described playing request, carry the audio-video document information of preview of needing, or treat the data structure information of project file of preview; The data structure information of project file comprises the Rankine-Hugoniot relations information of multistage audio frequency and video material information and each section of audio frequency and video material;

Receive the audio/video flow corresponding with described audio-video document information that described server returns, or the audio/video flow corresponding with the data structure information of described project file;

The media player that the audio/video flow received is sent to video player window is play.

8. device according to claim 7, is characterized in that, the dispatching device of described non-linear editing software also comprises:

Link block, before sending playing request at described calling module to server, judges whether to connect described server; If do not connect described server, then connect with described server, and the data structure information of the project file edited is synchronized to described server.

9. device according to claim 8, it is characterized in that, when described user operation request is when carrying out the request of preview to the video pictures frame of editing or engineering image frame, described calling module calls search strategy when obtaining data that described user operation request asks from server and play:

Send searching request to server, wherein, in described searching request, carry the information of described video pictures frame of preview of needing, or the information of described engineering image frame to be browsed;

Receive that described server returns according to setpoint frequency with information that is described video pictures frame, or the video flowing that the information of described engineering image frame is corresponding;

The media player of the video stream received to video player window is play, to realize the preview to image frame.

10. device according to claim 9, it is characterized in that, the protocol data that the audio/video flow that the playing request sent to described server, searching request and the described server received return, video flowing all follow setting form wraps between described server and browser client and transmits;

Wherein, the setting form of described protocol data bag is: the first field is command id, the second field is load data length, the 3rd field is load data.