JP2894147B2 - How to edit a scenario - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scenario editing method for presenting multimedia data including moving images / audio / still images / text, and more particularly to a scenario editing method including timing designation such as start / end of presentation of multimedia data. How to edit.

[0002]

2. Description of the Related Art In various fields such as electronic publishing, education, and presentation, when presenting multimedia information including text, audio, still images, moving images, and the like on a display screen, it is necessary to determine when to present and erase the multimedia information. The described scenario is required. As a method of editing a scenario describing such timing, there is a method of displaying a time axis on a display screen and designating the presentation timing of each data and an interactive button on the time axis. This method is disclosed, for example, in Japanese Patent Application Laid-Open No. Hei 3-9393, entitled "Data Editing / Presentation Method and Apparatus", and the document "ITELPURI SOFTWARE".
A Construction Set for Multimedia Applications, January 1989 (IEEE
Software, A Construction
Set for Multimedia Applic
ations, Vol. 1, Jan. 1989, pp,
37-43) ".

[0003]

In the conventional method, since the presentation time / end time of the media is directly designated on the numerical time axis, it is necessary to know the specific presentation time of the media in advance. There's a problem. In addition, there is a problem that it is not possible to designate abstract timings such as “presenting voice A and text B in synchronization” and “presenting still image D immediately after presentation of moving image C”. Furthermore, in applications that have many common presentation timings, such as CAI teaching materials and presentations, when the scenario is reused by replacing the media name in the scenario, if the presentation time of the media to be replaced is different, the media in synchronization with the media will be changed. Need to be re-edited.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and has a feature to present media in a scenario describing presentation timing of multimedia data including moving image / audio / still image / text. start end
That describes the relationship between events and event identifiers.
Relative between the event scenario and the timing of the event
Relationship as a relative time constraint between event identifiers
The described constraint table is created , the scenario and the constraint table are held as a template, and the event identifier of the template is made to correspond to the media having the presentation time.
According to the relative time constraints listed in the table,
Events such as start / end time of media presentation
Time and the relative relationship between the timing of the event
Calculated automatically while reflecting, start presentation of media /
This is a scenario editing method characterized by creating a time-specified scenario describing a timing such as an end time.

[0005]

An embodiment of the present invention will be described.

According to the present invention, first, an event scenario in which the presence / absence of a media presentation start / end event is described and a constraint table in which synchronization between media and relative designation of timing are described are created, and these are held as templates. . The event scenario includes a list of event identifiers describing start / end of media presentation.
The constraint table describes the relationship between the event identifiers and the presentation time on the time axis, and is expressed by the following formula: event identifier = constraint condition. Next, individual media data is associated with each identifier, and a specific presentation time from the start to the end of the media presentation is given. Further, based on the presentation time of the event identifier and the constraint condition of the constraint table, the presentation time on the time axis of each event is calculated, and the events whose concrete presentation times are determined are described in the time designation scenario in chronological order. As described above, the present invention
It is a method to automatically create a scenario that describes the event of media presentation start / end on the time axis from a template abstractly described by event identifiers and constraints,
This facilitates scenario editing in which the presentation times are different but the constraints on synchronization are the same.

Next, a scenario editing apparatus for realizing the scenario editing method of the present invention will be described with reference to FIG. Details of the device are as follows.

[0010] The scenario recording unit 11 records an event scenario in which an event identifier indicating a presentation start / end time of a medium is described, and an edited time designation scenario. The format of the event scenario is as follows. Event identifier (media identifier, event type) Here, the event identifier can be freely determined by the user. Further, the media identifier and the event type are attribute information of the event identifier, and indicate which event of which media corresponds to which event identifier. The event type can be set as Start when presentation is started, and End when presentation is completed. Further, the user can freely set an event identifier other than the presentation start / end, for example, when the user wants to display a part of the voice and the text in synchronization.

For example, when describing a scenario in which the media B is presented after the media A is presented as shown in FIG. 2, the event scenario is as follows. TM1 (A, Start) TM2 (A, End) TM3 (B, Start) TM4 (B, End) Here, TM1 indicates the start of presentation of the media A, and TM2 indicates the end of presentation of the media A.

[0010] The constraint table recording unit 12 records the constraint of each event identifier. The constraint is described by the following expression, for example. TM1 = 0 TM3 = TM2 + 1 This means that TM1 is placed at 0 second on the time axis, and TM3 is T
It means that it is always arranged one second after M2. In the scenario of FIG. 2, the above-described constraint indicates that the media A starts at 0 seconds and presents the media B one second after the presentation of the media A ends.

The input / output management unit 13 manages input devices such as a keyboard and a mouse and a drawing device such as a CRT display and monitors user inputs. The input from the user is converted into a command for editing and sent to a scenario editing unit 16 described later. Further, an editing result from the scenario editing unit 16 and an editing menu are drawn.

The editing scenario recording unit 14 stores a time designation scenario, an event scenario, a presentation time of a medium to be used, and a restriction table during editing. These are always updated by the scenario editing unit 16.

The format of the time designation scenario created here is, for example, It is described as follows. However, the time designation scenario used here does not need to be limited to the format described above, and any description format may be used as long as the media presentation start time and media end time are designated by numerical values on the time axis.

The media stack 15 temporarily stores the event identifier calculated by the calculation unit 18 described later and the presentation time. The presentation time represented by the event identifier stored in the media stack 15 is substituted for the same event identifier in the constraint table. When the presentation time of the event identifier is substituted for the same event identifier in the constraint expression, the event is deleted from the media stack 15.

The scenario editing unit 16 includes an input / output management unit 13
The scenario editing process is performed based on the command sent from.

The media information recording unit 17 records the presentation time of individual media data to be described in the event scenario. For example, it can be described as follows: A (End) = 10 B (End) = 15 Here, the media A indicates that the presentation time from Start to End is 10 and the media B is 15.

The calculation unit 18 includes a constraint between event identifiers,
The specific presentation time of each event identifier is calculated from the presentation time of the media.

Next, the operation of the scenario editing apparatus according to the present invention will be described. The scenario editing unit 16 operates as follows according to the flow shown in FIG. Here, as an example, a case will be described in which a time designation scenario is created from the constraint table, the event scenario, and the media presentation time in the initial state of FIG. (1) Waiting for a user input from the input / output management unit 13, if it is an edit start command, an event scenario from the scenario recording unit 11, a media presentation time to be used from the media information recording unit 17, and a constraint table from the constraint table recording unit 12 Is read and transferred to the editing scenario recording unit 14 (step 3
1-33). FIG. 4 corresponds to the initial state. (2) Search the constraint table of the editing scenario recording unit 14, and if there is a constraint that directly substitutes a numerical value, such as TMx = 0, describe the corresponding event in the time designation scenario. For example, in the case of FIG. 4A, TM1 is described in the time designation scenario. Further, the event is deleted from the event scenario. If there is no restriction to directly substitute a numerical value, the process proceeds to (5) (steps 34 to 36). The above processing corresponds to the processing from the initial state in FIG. 4 to (a). Also,
This corresponds to the processing from (c) to (d). (3) The presentation time of the event written in the time designation scenario in (2) from the editing scenario recording unit 14 and the presentation time of the media corresponding to the event are sent to the calculation unit 18.
Let the other event of the media calculate. Calculation unit 1
The time of the event calculated by 8 is described in the time designation scenario. For example, in FIG. 4A, the time of the event TM2 of the presentation end (End) of the media A is calculated from the event time of the presentation start (Start) of the media A and the presentation time of the media A (step 37). (4) The media presentation time of the event written in the time designation scenario in (3) is deleted from the media information. Also, the event written in the time designation scenario is deleted from the event scenario, and the event identifier calculated in (3) and the time on the time axis are recorded in the media stack 15 (step 38). The above (3) and (4) correspond to the processing from (a) to (b) in FIG. Also, it corresponds to the processing from (d) to (e). (5) T of the event scenario in the editing scenario recording unit 14
Mx = TMy or TMx = TMy + z
The time indicated by the event identifier stored in the media stack 15 is substituted, the calculation is performed by the calculation unit 18, and TMx is calculated.
= Z format. When the conversion is completed or there is no event identifier to be substituted in the constraint table, the event identifier is deleted from the media stack (steps 39 to 3).
12). This processing corresponds to the processing from (b) to (c) or (e) to (f) in FIG. (6) If the event identifier has disappeared from the event scenario, the process ends; otherwise, the process returns to (2) (step 313). In the case of (c) in FIG. 4, the process returns to (2),
In the case of (e), the time designation scenario is stored in the scenario recording unit 11.
And exit.

The basic operation of the scenario editing unit 16 has been described above.

As described above, a time designation scenario can be created from the event scenario, the constraint table, and the media presentation time.

The event identifier of the scenario used above is not limited to the above-mentioned format.

[0022]

According to the present invention, it is possible to edit the timing of a scenario, especially a synchronous description between a plurality of media, without knowing the presentation time of each media in advance, and this can be repeatedly used as a template. For this reason, it is possible to create all the presentation scenarios in which the presentation times of the media are different but the synchronization constraints are the same, using a single template, and the labor of editing can be greatly reduced.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a scenario editing apparatus that implements a scenario editing method of the present invention.

FIG. 2 is a diagram showing timing of a scenario for explaining the present invention.

FIG. 3 is a flowchart showing an operation of a scenario editing unit 16 in FIG.

FIG. 4 is a diagram illustrating a state change of a media stack, a constraint table, an event scenario, a media presentation time, and a time designation scenario by the operation of FIG. 3;

[Explanation of symbols]

 11 Scenario recording unit 12 Restriction table recording unit 13 Input / output management unit 14 Editing scenario recording unit 15 Media stack 16 Scenario editing unit 17 Media information recording unit 18 Calculation unit

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-228186 (JP, A) JP-A-2-236781 (JP, A) JP-A-3-9393 (JP, A) JP-A-5-205 67150 (JP, A) JP-A-4-36787 (JP, A) JP-A-4-98365 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) G09G 5/00 510 G06F 3/00 651 G06F 17/30

Claims (1)

(57) [Claims] In a scenario describing presentation timing of multimedia data including moving image / audio / still image / text, etc., an event such as start / end of media presentation is provided.
Event scenario that describes the relationship between events and event identifiers
And the relative relationship between the event occurrence timing and
Constraints described as relative time constraints between vent identifiers
A table is created , the scenario and the constraint table are held as a template, and the event identifier of the template is associated with the media having the presentation time , so that the presentation time of the media and the constraint table are recorded.
Media submission according to the relative time constraints listed
Event start / end times
While reflecting the relative relationship between
A scenario editing method, wherein the scenario editing method automatically calculates the scenario and creates a time-specified scenario in which the timing of media presentation start / end times and the like are described.