JP3011307B2 - Multimedia information editing and playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multimedia information editing / reproducing apparatus which uses a computer to construct information such as video and audio managed by a computer and reproduces and displays a plurality of images and voices simultaneously. Things.

[0002]

2. Description of the Related Art In recent years, on a computer system, video fragments (hereinafter referred to as "cuts") / audio fragments (hereinafter referred to as "sounds") are managed as data which can be operated by an editor as a display / reproduction element. Multimedia information editing / playback apparatuses have been developed that create / edit them as integrated data or scenes by specifying the order of display / playback.

[0003] FIG. 11 is a diagram of M of Macro Media.
acro Mind Director,
1 shows the configuration of a conventional typical multimedia information editing / playback apparatus found in a card type data processing apparatus described in Japanese Patent Application Laid-Open No. 297921.

As schematically shown in FIG. 12, a processing target of the multimedia information editing and reproducing apparatus is scene data, and the scene data holds a plurality of track data. Each track data is data for storing a plurality of display / playback elements in a playback order, and each display / playback element is configured by display / playback element content information and playback / display position information for specifying content such as image data.

[0005] Scene data managed by the scene data management unit 13 is data for integrating a plurality of playback display elements, and holds a plurality of track data as constituent elements. The track data managed by the track data management unit 18 is data for storing display reproduction elements in a reproduction order. The display / reproduction element includes display / reproduction element content information for specifying the content of image data to be displayed / reproduced, such as an image file name held on a secondary storage device;
And playback display position information. The display / reproduction element management unit 12 manages the display / reproduction element. The display / reproduction element storage unit 11 stores the contents of display / reproduction element data such as cuts and sounds specified by the display / reproduction element content information of the display / reproduction elements in a format such as an image data file and an audio data file. Using this multimedia information editing and reproducing apparatus, editing and reproducing of scene data using various information elements are performed.

[0006] The scene data is created / edited by the scene / track data editing unit 14 on the track held by the scene data to be edited managed by the track data management unit 18 and the display extracted from the display / reproduction element management unit 12. Perform operations such as adding, deleting, and changing the order of playback elements. The display position of the display / reproduction element is specified by specifying the display position as a coordinate value for each display / reproduction element. With this operation, the display position of the display / reproduction element is held as a coordinate value corresponding to the display / reproduction position information held inside each display / reproduction element managed by the display / reproduction element management unit 12.

The reproduction and display processing of the scene data created and edited as described above is performed in the scene data display and reproduction processing section 15 in the following procedure. Each track data held by the reproduction target scene data managed by the scene data management unit 13 is stored in the track data management unit 1.
8 for each display / playback element managed by the display / playback element management unit 12 belonging to each track data, from the display position data held inside each display / playback element in accordance with the order thereof, The area is determined, the contents of the display / reproduction element are retrieved from the display / reproduction element storage unit 12, and the process of reproducing and displaying the content at a predetermined position is repeated.

In the creation / editing of scene data, the display position of a display / reproduction element often changes during the editing of scene data. The display position of the display / reproduction element is changed by specifying the display / reproduction element to be changed and designating the display position after the change. By this operation,
The display reproduction element managed by the display reproduction element management unit 12 updates the coordinate value of the display reproduction position information held therein. Since the display position information of each display / playback element is held inside each display / playback element, a change to a plurality of display / playback elements has to be repeated for each element to be changed. .

On the other hand, a series of display / reproduction elements that are continuous in the same track often have a semantic relationship among the plurality of display / reproduction elements. Therefore, it is considered that the editor views the plurality of display / reproduction elements as one group. Therefore, there are many occasions where the operation of changing the display position is performed on a plurality of continuous display / reproduction elements. However, in the conventional device, as described above, the display position cannot be changed for a plurality of display / reproduction elements at once, and the same change operation must be repeated for each change target element.

[0010]

The following problems arise in the data configuration / management method according to the above invention.

First, in the conventional example, it is difficult to uniformly change the display positions of all display / reproduction element data in a track. That is, since there is no information indicating the display position of the track itself, the process of changing the display position for the entire track is complicated. In order to change the display position of all the display / reproduction element data in the track, complicated processing of changing the display position data of all the display / reproduction element data in the track is required.

Next, in the conventional example, it is difficult to share display / reproduction element data in a plurality of scenes.
That is, when one display / reproduction element data is used in a plurality of different scenes, a different display position cannot be designated for each scene. In order to use the same display / reproduction element data in a plurality of scenes, it is necessary to copy the display / reproduction element data and perform processing using different display / reproduction element data in each scene. As described above, it is difficult to use one display / reproduction element data in a plurality of different scenes.

In the scene reproduction process, since the display position is specified for each display reproduction element, a process of converting the display position to a position on the display device occurs each time the display processing of each element is performed. . There is also a problem that such processing increases the load on the reproduction display processing.

[0014] The above-mentioned problem is that the reproduction order of the display / reproduction element data belonging to the track is managed as track management data, whereas the display position is determined by the track position. Due to not being treated as management data.

Accordingly, an object of the present invention is to make it possible to easily perform editing for changing the display position of a display / reproduction element by treating the display position of the track as track management data.

[0016]

In order to solve the above-mentioned problems, the present invention provides an information element managing means for managing a plurality of information elements constituting scene data, and a plurality of information elements which are arranged in chronological order according to a reproduction order. Track data management means for managing the track data arranged in a row, scene data management means for managing the track data, and displaying and reproducing the information element according to the reproduction order information of the information element with reference to the track data. In a multimedia information editing / playback apparatus comprising display / playback means for executing,
A track display position information management unit for holding display position information of an information element for each track data; and at the time of reproduction, referring to display position information corresponding to each track held in the track display position information management unit, The display and reproduction of the information element are performed at the position.

[0017]

In the multimedia information editing / playback apparatus of the present invention, the structure of the scene data has display position information for designating the display position of the information element belonging to the track, which is a component of the scene data, in track units. . As a result, the display position can be specified for each track, and the calculation of the display position can be performed for one track data.
Only times. As a result, the display positions of the information elements related to each other can be changed in a unified and collective manner. Further, the frequency of the calculation processing of the display position can be reduced, and the display reproduction processing of the scene data is reduced.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The features of the present invention will be specifically described below based on embodiments with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of a multimedia information editing and reproducing apparatus according to the present invention. The media data storage unit 21 stores content data of display / reproduction elements such as cuts (fragments of video) and sounds (fragments of audio) in a format such as an image data file and an audio data file.
A plurality of display / reproduction elements are arranged in chronological order of display to form a track. The media data management unit 22 uses the type, playback time, and content data to absorb the dependency of the type of media as a display / playback element in order to uniformly handle the image, sound, and the like arranged on the track in the system. Manages media data that is structure data having pointers as members. The scene data management unit 23
Manages scene data holding one or more track data and layout data. The track data management unit 211 manages track data for managing the order of display and reproduction of the same type of media data such as images and sounds. The layout data management unit 24 manages layout data holding information on the display reproduction position of the track on the virtual display device. Since the display position of the display device 20 where the reproduction is actually performed is determined depending on the performance of the display device, the coordinates of the display device 20 are not directly used here, but a predetermined size, for example, Assuming a virtual display device of 1000 pixels × 750 pixels, all positions are specified at positions in the virtual display device, and during actual display, coordinate conversion is performed according to the performance of the display device 20 for display. The scene / track data editing unit 25 adds / deletes tracks to / from scene data and adds / deletes media data to / from tracks. The layout data editing unit 26 creates a layout descriptor corresponding to the track and specifies / changes an area. The input device 29 includes the scene / track data editing unit 2
5. Receive an instruction from the user to the layout data editing unit 26. The input device 29 includes, for example, a keyboard, a mouse, and the like. The display device 20 displays the states of the scene data editing unit 25 and the layout data editing unit 26, and displays the playback video of the scene data display / playback processing unit 27. The scene data display / reproduction processing unit 27 performs display / reproduction of the scene data on the display device 20 in response to a scene data reproduction instruction. The media data display / reproduction processing unit 28 displays and reproduces each display / reproduction element data included in the scene data in a designated area.

First, the basic operation of the embodiment shown in FIG. 1 will be described.

The reproduction order of the display reproduction element data in each track in the scene is designated by the scene / track data editing unit 25. The editor accesses the track data to be edited in the track data management unit 211 through the scene / track data editing unit 25, and specifies the order of the target display / reproduction element data held in the media data management unit 22.

The display position of each track in the scene is designated by the layout data editing unit 26. The editor uses the layout data editing unit 26 to
The position of the display area of each track, which is a component of the scene and is held in the track data management unit 211, is specified. The designated area position information updates the display position designation data of the track corresponding to the target layout data acquired from the layout data management unit 24.

The display and reproduction of the scene data are processed by the scene data display and reproduction processing section 27 in the following procedure.
First, the scene layout data corresponding to the scene data to be reproduced is extracted from the layout data management unit 24. Next, display position data corresponding to each track is extracted from the scene layout data, and each display / playback element belonging to the track data is extracted from the media data management unit 22 according to the order, and designated by the display position data on the display device. The display / reproduction content data specified by the display / reproduction element content information held by the display / reproduction element is reproduced and displayed at the position where the reproduction / reproduction element is held.

Hereinafter, the operation of the embodiment shown in FIG. 1 will be described in detail.

FIG. 2 is an explanatory diagram showing an example of the data structure of scene data in the multimedia information editing and reproducing apparatus of the present embodiment. The scene data is composed of the following fields. SceneID31 is a scene identifier. LayoutDATA 37 is data for specifying the display layout of each track belonging to the scene.
“LayoutPtr32” is a pointer to “LayoutDATA”. Tracks 33 is a pointer to a list of one or more track data.

The list of track data is composed of the following data. TrackDATA 36 is track data. TrackPtr34 is TrackD
Pointer to ATA. NextPtr35 is a pointer to the next entry. The end of the list is Next
It is expressed by setting the value of NIL in Ptr.

FIG. 3 shows an example of a user interface of the scene data editing apparatus. This user interface is displayed as one of the multi-windows displayed on the display device 20, for example. In the figure, reference numeral 41 denotes a track label indicating a track identifier TrackID and a type Type. Display reproduction element data is arranged on the track 42 from left to right according to the reproduction order.
The display / reproduction element data 43 is represented by an icon, and an identifier is displayed for identification. The identifier "Cut # 1",
“Cut # 2”,... Indicates a cut, and the identifier “Sou
nd # 1 "," Sound # 2 ",... indicate sound, identifiers" NA # 1 "," NA # 2 ",... indicate narration, and identifiers" CAP # 1 "," CAP # ".
2 ”indicates a caption. And the width of the icon represents the reproduction time. The shade part in the track is
This indicates that there is no data to be reproduced. The time scale 44 is a scale for confirming the reproduction time.
The buttons 45 to 49 and 40 arranged at the top indicate scene data editing processing such as processing for adding / deleting a track and adding / deleting a member to / from a track. The user clicks the buttons 45 to 49, 40 using the mouse to instruct processing.

FIG. 4 shows the data structure of the track data. Track data is composed of the following fields. TrackID 51 is an identifier. Type 52 specifies the type of display / reproduction element data to be arranged on the track, for example, a moving image, a still image, a sound, and the like. Elements 53 are pointers to a list of display / reproduction element data MediaDATA. The list of display / reproduction element data includes the following data. The order of the list indicates the order of reproduction. MediaD
The ATA 56 is display / reproduction element data. ElemP
tr54 is a pointer to MediaDATA. N
extPtr55 is a pointer to the next entry.
The end of the list is represented by setting NIL to NextPtr.

[Editing of Scene Data] The scene data shown in FIG. The editor has buttons 45-49, shown in FIG.
Editing work is performed using a user interface such as 40. Here, an operation of adding media data to a track will be described as an example.

Procedure: The editor selects “Add El” in FIG.
element "button 48 using a mouse cursor.

Procedure: Next, a track to be added is specified by specifying a corresponding track label 41 with a mouse cursor.

Procedure: Next, from the display unit of the media data management unit 22 in which each media data is displayed as a multi-window on the display device 20, media data to be added is selected by pointing its display portion with a mouse. .

Procedure: An icon 43 corresponding to the media data specified in the procedure is newly displayed at the end of the track specified in the procedure.

By such an operation, the NextPTR 55 existing at the end of the media data list in the track data shown in FIG. 4 is replaced with a pointer to a newly created entry from NIL, and the NextPTR of the entry becomes NIL. . Then, a pointer to the media data specified in the above procedure is set in ElemPtr of the entry. From the above procedure,
The data structure of the track is edited, and media data is added.

FIG. 5 shows the data structure of media data which is a display / reproduction element, that is, an information element. The media data is composed of the following fields. ID91 is an identifier. The MediaType 92 specifies the type of data such as a moving image, a still image, and audio. Time93
Specifies the display / playback time. Content94
Is address data indicating the position where the actual data is recorded. For processing such as data reproduction, the media data display / reproduction processing unit 28 starts processing corresponding to the type.

As shown in FIG. 5, in the data structure of the media data, there is no information for specifying the display position at the time of reproducing the scene. The display position is specified as layout data for each track, as described below.

FIG. 6 shows the data structure of the layout data. The layout data is composed of the following fields. LayoutID 61 is an identifier. Lay
outElements 62 is a pointer to a list of layout descriptors that specify the display position and the like of each track of the corresponding scene. The list of layout descriptors is
It consists of the following data. LayoutElem
ent63 is a layout descriptor. ElemPt
r64 is a pointer to a layout descriptor. Nex
tPtr65 is a pointer to the next entry. The end of the list is represented by setting NIL to NextPtr.

FIG. 7 shows a data structure of a layout descriptor. The layout descriptor is composed of the following fields. TrackID 71 indicates a corresponding track identifier. X72 designates the X coordinate at the lower left of the area representing the display area. Y73 designates the lower left Y coordinate of the area representing the display area. W74 specifies the width of the area representing the display area. H75 specifies the height of the area representing the display area. Plane76 is an integer that specifies the order of overlap,
The lower the number, the lower it is displayed. mode7
7 designates a display method. If the value is PAINT, it is displayed as “OR” with the lower image data. If the value is "REP
In the case of "LACE", the lower image data disappears, and all the display data is replaced with the upper display data.

FIG. 8 shows an example of a user interface of the layout editing apparatus (corresponding to the layout editing unit 26 in FIG. 1). This user interface is displayed on the display device 20 as one window of a multi-window, for example. Note that the user interface of the layout editing apparatus and the user interface of the scene data editing apparatus of FIG. 3 may be displayed on the display device 20 in a multi-window format simultaneously and in parallel, or may be sequentially displayed according to the operation. You may. The layout editing device specifies / changes a display area and the like for the corresponding track. The scene display layout window 81 displays a scene /
Represents the entire screen to be played. The display position of each track is specified in this. The layout descriptor display rectangles 82, 83, and 84 represent a rectangular area for specifying the display position size of the track and the like, correspond to the layout descriptor, and become a display area of the corresponding track.
To indicate which track is specified, TrackI
D label is attached. The line type (solid line / dashed line) expresses the degree of overlap, and indicates that the layout descriptor enclosed by the solid line is displayed above that of the broken line. The command buttons 85 to 89 and 80 are used by the user to issue an editing instruction to the editing apparatus. The user edits the layout by clicking these buttons with a mouse.

[Editing of Layout Data] The display position of the media data arranged on each track belonging to the scene data is specified by the layout data. This layout data is edited by the layout data editing unit 26.

An example of an operation for designating a display area corresponding to a track will be described below.

Procedure: The editor designates an “Add” button 85 in FIG. 8 using a mouse cursor.

Procedure: Next, in the scene display layout window 81, an area to be displayed is set by designating two points, an upper left and a lower right, of the area using a mouse cursor.

Procedure: Next, a "TrackID" button 87 is designated by using a mouse cursor, and the number of the track identifier of the track for which the display area is currently set is input from the keyboard.

Procedure: A layout descriptor display rectangle with a track identifier label is newly displayed on the scene display layout window 81.

By such an operation, NextPTR 65 existing at the end of the layout descriptor list in the layout data shown in FIG. 6 is replaced with a pointer to a newly created entry from NIL, and NextPTR of this entry is replaced with NIL. Become. Then, a pointer to the newly created layout descriptor is set in ElemPtr of this entry. This layout descriptor has the structure shown in FIG.
The fields 72, Y73, W74, and H75 are converted from the coordinates of the two points designated in the above procedure to coordinates on the virtual display device, and the lower left X coordinate, Y coordinate, width,
Height value is set. In the TrackID 71, an identifier of a track to be displayed is set. Plane
Reference numeral 76 designates an overlapping order. The Plane 76 is indicated by an integer, and the lower the number, the lower the display.
In the mode 77, a display method is specified. Value is PAI
If it is NT, it is displayed as "OR" with the lower image data.
If the value is “REPLACE”, the lower image data disappears and all the display data is replaced with the upper display data.

[Scene Data Reproduction Processing] Display and reproduction of scene data will be described. When the “ScenePLAY” button of the scene data editing device shown in FIG. 3 is pressed, the scene is reproduced and displayed on the window screen of the scene data display / reproduction processing unit 27.

First, the corresponding layout is searched, and the area where the display / reproduction element data of each track is displayed is determined. Next, display / reproduction element data is extracted for each track, and is displayed / reproduced in the designated area by the media data display / reproduction processing unit 28. As for the display time, the media data display / reproduction processing unit 28 knows the reproduction time by seeing the designation of the media data, and when the reproduction is completed, returns to the scene data display / reproduction processing unit 28 and performs the display / reproduction processing of the next data. Move on to

The processing contents of the display / reproduction processing will be described below with reference to a flowchart.

FIG. 9 is a flowchart of the scene data display / reproduction process. The processing can be broadly divided into (1) retrieval of layout data and (2) calling of reproduction processing of each track.

The following processing is performed in (1) extracting layout data.

In step 1001, the scene data to be reproduced is loaded from the scene data management unit 23 into the temporary work memory area of the scene data display / reproduction processing unit 27 named SD. In step 1002, the layout pointer Layou is calculated from the scene data in the temporary working memory area SD.
Through tPtr, from the layout data management unit 24,
The layout data is taken out, and the data is loaded into the temporary work memory area of the scene data display / reproduction processing unit 27 named LD. In step 1003, the list of layout descriptors in the temporary working memory area LD is
It is extracted through tElements and loaded into the temporary work memory area of the scene data display / reproduction processing unit 27 named LI.

Hereinafter, a layout descriptor is extracted from this list. Step 1004 checks whether the end of the list is attained by checking whether the value of LI is "NIL". If it is "NIL", it means that all layout descriptors in the list have been extracted, and the process moves to step 1009. If not, the processing of steps 1005 to 1008 is performed, and the inspection of step 1004 is performed again. In step 1005, L
I, layout descriptor data is extracted from the layout data management unit 24 through ElemPtr,
The data is loaded into the temporary work memory area of the scene data display / reproduction processing unit 27 named EM. In step 1006,
The track ID of the ITEM is taken out and loaded into the temporary work memory area of the scene data display / playback processing unit 27 named i. In step 1007, the layout descriptor data stored in the ITEM is copied to the area specified by the value of i in the array type memory area of the scene data display / reproduction processing unit 27 indexed by an integer named TRL. . In step 1008, the LI Next
The Ptr is taken out and loaded into the LI as new data. The process moves to step 1004.

The following processing is called for the reproduction processing of each track in (2).

In step 1009, a list of SD track data is retrieved from the scene data management unit 23 through Tracks and loaded into the memory area of the scene data display / reproduction processing unit 27 named TRD. Step 1010 checks whether the end of the list is attained by checking whether the value of TRD is "NIL". If it is "NIL", it means that all track data in the list has been extracted, and the process moves to step 1016. Otherwise, go to steps 1011 to 1
015 is performed, and the inspection in step 1010 is performed again.

In step 1011, TRD is changed from Tra to
Through ckPtr, the track data is extracted from the scene data management unit 23 and loaded into the temporary work memory area of the scene data display / reproduction processing unit 27 named TRITEM. In step 1012, TRITEM
The track identifier is extracted through the ackID, and is loaded into the temporary work memory area of the scene data display / reproduction processing unit 27 named i. In step 1013, the TRL
The layout descriptor data is copied from the memory area designated by the value of i to the temporary work memory area of the scene data display / reproduction processing unit 27 named LAYOUT. In step 1014, the layout descriptor (LAYOUT)
And request the media data display / playback processing unit 28 to perform display / playback processing using the track data (TRITEM) as an argument. Upon receiving the processing request, the media data display / reproduction processing unit 28 immediately returns control to the calling side. The calling side continues the processing without waiting for the end of the reproduction processing. In step 1015, NextPtr of the TRD is extracted and loaded into the TRD as new data. The process moves to step 1010. With the above processing, the display reproduction processing of each track is started. At step 1016, the media data display / playback processing unit 28 monitors the end notification of the display / playback processing of each track. When it is confirmed that the end notification has been received for all the tracks, the scene data display / reproduction processing ends.

FIG. 10 is a flowchart of the processing of the media data display / reproduction processing unit. The display / playback processing of the display / playback element data in the track is performed by the media data
Processed by The processing requester passes the track data and the layout descriptor corresponding to the track as arguments. In the figure, track data is
k, the layout descriptor is described as LAYOUT.

In step 1101, X is changed from LAYOUT to X.
The display area data is extracted through the fields 72, Y73, W74, and H75, and is loaded into the temporary work memory area of the media data display / playback processing unit 28 named REGION. In step 1102, Track
, The type of the display / reproduction element data belonging to the track is taken out through Type and loaded into the temporary work memory area of the media data display / reproduction processing unit 28 named Type. In step 1103, a playback function corresponding to the type of the display playback element data is obtained from the media data management unit 22, and loaded into a memory area named Func. In step 1104, Track's Element
Through ts, the list of display / reproduction element data is extracted from the scene data management unit 23 and loaded into the temporary work memory area of the media data display / reproduction processing unit 28 named ElemP. In step 1105, the value of ElemP is "
It is checked whether it is the end of the list by checking whether it is "NIL". If "NIL", it means that the processing for all display reproduction element data in the list has been completed, The process moves to step 1109.
If not, the processing of steps 1106 to 1108 is performed, and the inspection of step 1105 is performed again. In step 1106, the media data representing the display / reproduction element data is extracted from the media data management unit 22 through the ElemPtr of ElemP, and loaded into the temporary work memory area of the media data display / reproduction processing unit 28 named MediaD. In step 1107, the display data MediaD and the display region REGION are applied to the display reproduction function Func, thereby executing a reproduction process of the display reproduction element data to the display region. Step 11
At 08, NextPtr of ElemP is extracted and loaded into ElemP as new data. The process moves to step 1105. In step 1109, an end notification is transmitted to the caller of the display reproduction process.
Thus, the processing of the media data display / reproduction processing unit 28 ends.

In the above embodiment, the display position of the track is fixed . A track can be regarded as a time axis management unit that can be set in the scene data .
As this, by separating the time management and the display position management elements, it is not necessary to perform position specification of the display individually. The particular I I management is simplified, independence of each element is increased, reuse is promoted.

[0060]

As described above, in the present invention, the display position of each image element in the display and reproduction of a scene is managed by the scene layout data for each track. Thus, it is not necessary to adjust the display position of each image element for each scene, and by simply specifying the display position of each track, the specification of the positions of all elements included in that track is completed. Therefore, the display positions of all the information elements in the track can be changed uniformly.

Further, since information elements can be shared by a plurality of scenes, when one display / reproduction element data is used in a plurality of different scenes, the duplication work of the information elements conventionally required is unnecessary. Becomes

Since the editing operation is extremely simple, the reuse of the display elements used in the scene is promoted, and the development efficiency of the scene data is improved.

Further, regarding the scene data reproducing process,
Since the display position is specified in units of tracks, the frequency of processing can be reduced by increasing the processing management unit, and the display position calculation processing is reduced, which is effective for processing efficiency. There is.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an embodiment of a multimedia information editing / playback apparatus of the present invention.

FIG. 2 is an explanatory diagram showing a data structure of scene data.

FIG. 3 is an explanatory diagram illustrating an example of a scene data editing device.

FIG. 4 is an explanatory diagram showing a data structure of track data.

FIG. 5 is an explanatory diagram showing a data structure of media data.

FIG. 6 is an explanatory diagram showing a data structure of layout data.

FIG. 7 is an explanatory diagram showing a data structure of a layout descriptor.

FIG. 8 is an explanatory diagram illustrating an example of a layout editing device.

FIG. 9 is a flowchart of a display reproduction process of scene data.

FIG. 10 is a flowchart of processing of a media data display / reproduction processing unit.

FIG. 11 is a configuration diagram of a conventional video editing device.

FIG. 12 is an explanatory diagram schematically showing a data structure of scene data in a conventional video editing device.

[Explanation of symbols]

Reference numeral 20: display device, 21: media data storage unit, 22:
Media data storage unit management unit, 23: scene data management unit, 24: layout data management unit, 25: scene / track data editing unit, 26: layout data editing unit
27: scene data display / reproduction processing unit, 28: media data display / reproduction processing unit, 29: input device, 211: track data management unit

────────────────────────────────────────────────── (5) References JP-A-4-135283 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G06F 3/14 310

Claims (2)

(57) [Claims] An information element management unit that manages a plurality of information elements constituting scene data; a track data management unit that manages track data in which a plurality of information elements are arranged in chronological order according to a reproduction order; A multimedia information editing / playback apparatus comprising: scene data management means for managing track data; and display / playback means for executing display / playback processing of the information element by referring to the track data and in accordance with playback order information of the information element. A track display position information management unit that holds display position information of an information element for each track data, and at the time of reproduction, refers to display position information corresponding to each track held in the track display position information management unit, Multimedia information editing and reproducing characterized in that information elements are displayed and reproduced at a predetermined position. Apparatus. 2. A reproduction element display position editing means for directly editing the display position information.
The multimedia information editing / playback apparatus according to the above.