JP2008160481A - Content editing apparatus, content editing method, and content editing program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a content editing apparatus which reduces a total data size of digital contents and changes reduction quantity temporally without changing a material constitution and a layout of already produced broadcast contents as few as possible. <P>SOLUTION: The content editing apparatus 4 includes an editing condition storing portion 21 which stores a conversion condition to show a condition for generating conversion material data by reducing a data size of original material data to constitute original contents for a data broadcasting and an outgoing condition of conversion contents including the conversion material data and the original contents, a material converting means 13 which generates the conversion material data according to the conversion condition, and a time-series change working means 15 which generates conversion outgoing information to show an outgoing order and an outgoing time of the conversion contents and the original content according to the outgoing condition so as to obtain an equal time shown by the outgoing information of the original contents. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a content editing apparatus, and more particularly, to a content editing apparatus that processes a content material so that a time required for a content display terminal to acquire content that has been produced for data broadcasting can be shortened.

  2. Description of the Related Art Conventionally, a content editing apparatus for editing content for data broadcasting conforms to XML (eXtensible Markup Language) for content information such as still images, moving images, text, and audio data, and control information such as display layout and display order of the material. Digital contents composed of data written in a description format (HTML (HyperText Markup Language) for web pages, cHTML for mobile phones, BML (Broadcast Markup Language) for digital broadcasting, etc.) The data size, screen display size, and the like are reprocessed in accordance with restrictions such as the memory capacity and display function of content display terminals such as “TV”, personal computers, and portable terminals with a television receiving function. By reducing the total amount of data with this type of content editing device, the time required from the viewer's browsing request to the completion of the acquisition of the displayed content by turning on the content display terminal, switching the TV channel, clicking the link element, etc. is shortened. It becomes possible to do.

  Here, digital content handled by broadcasting, such as data broadcasting in terrestrial digital broadcasting, includes content information such as BML and still images, as well as time information data on when to be broadcast, such as the Internet and There are different features from web pages used in wireless networks.

An example of a conventional system is described in Patent Literature 1, Patent Literature 2, Patent Literature 3, and Patent Literature 4.
The conventional content editing apparatus according to Patent Document 1 finds a still image, a moving image, or a software object that is a content material, and replaces the original content material with an alternative content material having a smaller data size, thereby achieving a data size suitable for transmission. Rework the produced content so that

  A conventional content editing apparatus according to Patent Document 2 edits and processes HTML data for displaying a web page of a personal computer so as to be displayed on a mobile phone, and divides an arbitrary web page into a plurality of web pages and displays a screen. Reduce the display area and data size. This editing apparatus includes original content proxy acquisition means, content division condition acquisition means, means for creating a link between the divided contents, storage means for the divided contents, and return means for the divided contents. Tag breaks are detected from the content described in HTML, and the content is divided at the tag breaks so that the amount of data does not exceed the memory capacity of the mobile terminal. Due to the division of content, the content and composition of content materials such as still images, moving images, characters, and tables differ between the original content and the divided content. The content viewer browses the entire content by requesting browsing of the divided content individually.

  The conventional content editing apparatus according to Patent Document 3 is composed of content acquisition means, content division means, and content reconstruction means for the HTML description of a web page. Thus, even if the web page has a complicated layout configuration, an appropriate delimiter for the display content of the produced content is found and the produced content is divided.

  The conventional content editing apparatus according to Patent Document 4 pays attention to a carousel transmission system for digital broadcasting, and is intended for a TS (Transport Stream) handled in data transmission, and includes section generation means, connection section generation means, connection module generation means, and data Consists of stream generation means, finds a set of data necessary for screen display of the content display terminal, and acquires the content of the content display terminal by generating a reprocessed TS for each screen display batch It saves time.

Japanese translation of PCT publication No. 2003-511784 JP 2001-229106 A JP 2006-155147 A JP 2005-94051 A

  Digital content of data broadcasting operated in accordance with the standards established by ARIB (Association of Radio Industries and Businesses) is transmitted separately from the main video stream, so it can be viewed on viewer display terminals such as TVs and mobile terminals. The display timing of the main video and the data broadcast does not necessarily match. In particular, when the transmission band of data broadcasting is narrow, such as one-segment broadcasting started in Japan in 2006, the content acquisition time becomes longer than viewing on digital TV, and acquisition of data broadcasting content from channel switching It takes a long time to complete, or the display timing shift between the main video and the data broadcast becomes noticeable. Therefore, when the power is turned on, when the channel is switched, or when the transmission content of the data broadcast content is switched, the idea of shortening the acquisition time of the data broadcast content as much as possible and immediately presenting the data broadcast content on the display terminal screen is said to improve the service quality Desired from the viewpoint.

  The first problem lies in continuing to present content material with a reduced data size. Reducing the data size leads to a decrease in the image quality of the image data that is the content material and the audio quality of the audio data, and the display control function based on HTML or script description is deleted or replaced with a simplified function. Continuing to present digital content with a reduced size does not sufficiently satisfy the broadcast effect intended by broadcast transmission companies.

The second problem in realizing a reduction in data acquisition time is that the content requested by viewers in the data broadcasting is the content only by dividing the content in order to reduce the amount of data transmitted at one time. This means that there are cases where transmission to the display terminal cannot be performed.
The reason is that, unlike a web system that distributes individual HTML that is divided every time a viewer requests browsing, the data that is displayed in the data broadcasting transmission standard of digital broadcasting is all in one set (carousel) in a certain time interval. This is because the data is transmitted in one direction from the digital broadcast transmission facility to the content display terminal. When the viewer wants to view an arbitrary divided portion not included in the transmitted carousel, the viewer must wait until the divided portion is transmitted. In addition, it is desirable to avoid the work of changing the configuration / layout of the content as much as possible because it may not satisfy the expression intention of the content creator.

The third problem is that the effect of shortening the content acquisition time is limited only by rearranging the contents.
The reason is that the materials constituting the content are rearranged in units of display screens, so the minimum value of the content acquisition time is limited by the data size of the produced content material. When still images with an unnecessarily large data size are mixed, the effect of shortening the content acquisition time is reduced only by rearrangement as compared with the case where the data size is reduced.

An object of the present invention is to provide a content editing apparatus capable of reducing the total data size of digital content and changing the amount of reduction over time without changing the material composition / layout of the produced broadcast content as much as possible. Is to provide.
Another object of the present invention is to provide a content editing apparatus that can visually check the required image quality and the degree of function deterioration due to the reduction of the data size of the content material, and can adjust the data size reduction contents interactively. .

  The content editing apparatus according to the present invention includes a conversion condition indicating a condition for generating the conversion material data by reducing the data size of the original material data constituting the original content for data broadcasting, the conversion content including the conversion material data, An editing condition storage unit that stores the transmission conditions of the original content, a material conversion unit that generates conversion material data according to the conversion conditions, and a conversion content and an original content that are equal to the time indicated by the transmission information of the original content according to the transmission conditions Time-series change processing means for generating conversion transmission information indicating the content transmission order and transmission time (claims 1 to 7).

According to the content editing apparatus, the material converting means reduces the data size of the individual material data constituting the original content, for example, by changing the data format or the compression rate, thereby converting the material data. Generate data. The time-series change processing means adjusts the sending order and sending time of the original content and the converted content so that the sending time when sending the original content and the converted content is equal to the sending time when sending only the current content. To do.
Therefore, the total data size of the broadcast content can be reduced and the reduction amount can be changed with time without changing the material composition / layout of the produced broadcast content as much as possible.

  In the above content editing apparatus, the conversion condition includes an upper limit reduction rate indicating an upper limit of the data size reduction rate, and the material conversion means determines that the ratio of the data size of the conversion material data to the data size of the raw material data is the reduction rate. The data size may be reduced so as to achieve the above (claim 2).

  In the content editing apparatus, the conversion condition includes information indicating whether or not the conversion of the data format is permitted, and the material conversion unit includes the data format of the raw material data in the data format in which the conversion of the data format is permitted. May be converted (claim 3).

  In the content editing apparatus, when the conversion condition includes the target acquisition time, and the material conversion means transmits the converted content and the original content according to the conversion transmission information, the display terminal that acquires and displays these contents is provided. The data size may be reduced so that the time required to acquire the converted content and the original content is equal to or less than the target time.

  In the content editing apparatus, the material converting means may generate a plurality of converted material data having different data size reduction rates for each raw material data.

  In the content editing apparatus, the editing conditions may be determined for each data format of the raw material data.

In the content editing apparatus, when the original content is transmitted according to the original transmission information, when the converted content and the original content are transmitted according to the conversion transmission information, the display state of the content on the display terminal, and the data size reduction content by the material conversion means And a preview means for displaying the conversion transmission information, and a conversion instruction means for receiving the input of the information for instructing the change of the conversion condition and the transmission condition and updating the conversion condition and the transmission condition stored in the editing condition storage unit, The data size conversion means and the time-series change processing means may regenerate the conversion material data and the post-conversion transmission information, respectively, according to the updated conversion condition and transmission condition (claim 7).
In this way, the user can visually check the required image quality and the degree of deterioration of the function due to the reduction of the data size of the content material, and can adjust the data size reduction contents in an interactive manner.

  The content editing method and the content editing program of the present invention can also solve the above-mentioned problem in the same manner as the content editing apparatus.

The first effect of the present invention is that the data size reduction amount of the content can be temporally changed without changing the material configuration / layout of the original content.
The second effect is that the user can visually check the degree of degradation of the image due to the reduction in the data amount of the content material and adjust the degree of data capacity reduction.

Next, the content editing apparatus 4 according to the first embodiment of the present invention will be described in detail with reference to the drawings.
Referring to FIG. 1, the content editing device 4 includes a data processing device 1 that operates under program control and a storage device 2 that stores information.
The storage device 2 includes an editing condition storage unit 21 and stores editing condition data indicating work contents of various editing operations and work restriction conditions. The editing condition data includes a condition (conversion condition) for reducing the data size of the material constituting the original content, and a transmission condition for the original content and the edited content.

  The data processing apparatus 1 includes content reading means 11 for reading original content, acquisition time calculation means 12 for calculating the time required for the content display terminal to acquire content, and the data sizes of individual content materials constituting the content. The material conversion processing means 13 to be reduced, the time series conversion processing means 14 for determining the transmission time for each material of the original content before editing and the content material whose data amount has been reduced by the material conversion means 13, and the above means Content output means 15 for outputting the edited content.

Each of these means generally operates as follows.
The content reading unit 11 captures original content composed of a plurality of content materials into the data processing apparatus 1. The content acquisition time calculation means 12 calculates the time required for the content display terminal to acquire the content material from the bandwidth of the transmission path used for the content display terminal to acquire the content material and the data size of the content material.

  The material conversion processing means 13 analyzes the data format, image quality, etc. of the original content material (original material data), converts the original content material using a data compression rate change or data format conversion method, and converts the original content material. Content material (converted material data) having a data size smaller than that of the content material is generated.

  The time-series change processing means 14 determines the transmission order and order of the original content material and the edited content material, and the sum of the transmission time of the edited content material with the original content transmission time and data size reduced is the content reading The transmission time of each content material is calculated so as to be equal to the transmission time of the original content before editing, which was sometimes specified. In addition, the time-series change processing unit 14 updates the description regarding the screen display control of the original HTML or BML so that the display of the content display terminal is updated when the combination of the content materials transmitted after the content acquisition is changed. To do. The original content and the edited content are stored by the content output means 15.

Next, the overall operation of the content editing apparatus 4 will be described in detail with reference to the flowcharts of FIGS.
First, the original content (step A1 in FIG. 2) read from the content reading means 11 is acquired by the acquisition time calculation means 12 according to the data size for each content material and the available bandwidth of the transmission path. The acquisition time for the entire content is calculated (step A2).

  Next, the acquisition time calculation means 12 refers to the acquisition target time included in the editing condition data stored in the editing condition storage unit 21 and determines whether the acquisition time of the entire content is equal to or less than the acquisition target time ( Step A3). If the acquisition time is larger than the acquisition target time, the material conversion processing means 13 identifies the attribute value related to the data format and compression state for each data type such as a still image or audio data of the original content, and the identified information and editing condition storage unit Whether or not the compression rate and data format of the content material can be changed is determined from the editing conditions stored in 21 (step A4). If the compression rate or the data format can be changed, the data size is reduced (step A5).

  Further, the time-series change processing means 14 determines the transmission time for each page, with each material of the original content and the edited content material being displayed on the display terminal screen at once (hereinafter referred to as a page). Then, a display control description is generated so that the display content of the display terminal is updated when the content material constituting the page to be transmitted changes (step A6).

For the content edited in step A6, the content acquisition time calculation means 21 again calculates the content acquisition time for each page (step A2), and determines whether the content acquisition time satisfies the criteria (step A3). repeat.
Finally, when it is determined that the content acquisition time satisfies the standard or the editing condition stored in the editing condition storage unit 21 cannot satisfy the standard, the content output unit 15 outputs the processing result ( Step A7).

Next, the effect of this embodiment will be described.
In the present embodiment, a material conversion process 13 for reducing the data amount of the content material and a time-series change processing means 14 that is a mechanism for determining the content transmission time by reducing the original content material and the data amount are configured. Therefore, the average data acquisition time in a specific transmission time range can be shortened as compared with the case where only the original content is transmitted while maintaining the display layout and material configuration of the original content as it is.

Next, the content editing apparatus 5 according to the second embodiment of the present invention will be described in detail with reference to the drawings. The same components as those of the content editing apparatus 4 in FIG. 1 are denoted by the same reference numerals as those in FIG.
Referring to FIG. 3, the data processing device 3 of the content editing device 5 includes a preview unit 36 and a conversion instruction unit 37 in addition to the configuration of the data processing device 1 of FIG. 1.

  The preview means 36 shows how the content material edited by the acquisition time calculation means 12, the material conversion means 13 and the time series change processing means 14 after being read by the content reading means 11 is actually acquired by the content display terminal. Display and allow the user to confirm.

  The conversion instruction unit 37 has a function of correcting the editing condition data stored in the editing condition storage unit 21 and updates the editing condition data according to information input by the user who has confirmed the display by the preview unit 36. The acquisition time calculation means 12, the material conversion means 13, and the time series change processing means 14 edit the content again according to the same procedure as in the first embodiment according to the updated editing condition data.

Next, the overall operation of the present embodiment will be described in detail with reference to the flowchart of FIG.
The original content is read from the content reading means 11 (step A1), the acquisition time of the entire content is calculated by the acquisition time calculation means 12 (step A2), and it is determined whether the content acquisition time satisfies the reference value (step A3). The material conversion processing unit 13 determines whether the material can be converted from the contents stored in the editing condition storage unit 21 (step A4). If the material can be converted, the material conversion unit 13 edits the editing condition storage unit 21. The amount of material data is reduced according to the above conditions (step A5), and the time series change processing means 14 edits the contents described in the editing condition storage unit 21 so as to change in time series (step A6).

Subsequently, the preview means 36 outputs the time when the display terminal acquires the content and the display state for the content that satisfies the content acquisition time condition at the display terminal in Step A2 (Step B1), and the user acquires it. It is visually discriminated whether there is any problem in time and display state, and the result of the determination is input (step B2). When there is an input indicating that there is no problem, the content output means 35 outputs the editing result (step A7). .
If there is an input to modify the editing conditions, the conversion instruction means 37 rewrites the contents of the editing conditions stored in the editing condition storage unit 41 (step B3), and the process returns to step A4 again.

Next, the effect of this embodiment will be described.
In the present embodiment, when it is determined that the editing result of the content based on the editing condition in the editing condition storage unit 21 needs to be changed for broadcasting by checking the display state including the image quality, By changing the degree of conversion of the content material by interactive instructions, the content editing operation can be repeated under various editing conditions corresponding to the broadcast content.
For example, when an event broadcast video program related to a sponsor is linked to data broadcasting content, the data size reduction of content material such as a banner related to the sponsor business is suppressed from the prescribed amount described in the editing conditions. This is effective in reducing the data size of other content materials.

Next, the operation of the first embodiment of the present invention will be described using specific examples.
In this embodiment, a digital content for broadcasting is provided from a general external storage device such as a CD-ROM drive or a USB memory, a file server connected via a communication network, etc., provided with a computer as a data processing device and a hard disk as a storage device. Is read or output.

  As shown in FIG. 5A, the original content consisting of BML data 511, still image data 512, 513, 514 and transmission information 515 for data broadcasting in which three still images and character strings are laid out on the screen is read. Suppose. The acquisition time of each material is approximated by a value obtained by adding the overhead time necessary for the transmission processing to the calculation result of “data size ÷ available transmission bandwidth on the transmission path”. Here, paying attention to the acquisition time excluding overhead time, which is a relatively small value, the acquisition time of BML data 511 is 1 second, the acquisition time of still image 512 is 2 seconds, the acquisition time of still image 513 and still image 514 Assuming that each is 1 second, the time required to acquire all data necessary for page display on a display terminal such as a mobile phone with a TV function is 5 seconds, which is the total acquisition time of each material. Become. Further, it is assumed that the original content in FIG. 5A is instructed to be transmitted for 30 seconds by the transmission schedule information 515.

  In the present invention, the data format, the number of colors used, the data compression rate, and the like of the still images 512, 513, and 514 are examined, and for example, what was in JPEG (Joint Photographic Experts Group) format is converted to PNG (Portable Network Graphics) format. The data size can be reduced by conversion of various formats and color reduction processing in the JPEG format. FIG. 5B shows the data amount of each material in FIG. 5A reduced. Data until the still image 522 obtained by converting the still image 512 is converted into a still image 522, the button-patterned still image 513 and the still image 514 are converted into the still image 523 and the still image 524, and each acquisition takes 0.5 seconds. Suppose the size is reduced. By reducing the data size of the still image, the time required to acquire data necessary for displaying the entire page is 3 seconds in total. If the content material is a still image, it can be reduced by determining the number of colors, resolution, etc., or by replacing the content material data. If it is audio data, it can be reconverted to lower the sampling rate or replaced by the content material data. If it is a description part of a script or CSS (Cascading Style Sheets), it will be replaced with an alternative description or an external file. If it is a movie, the number of frames will be reduced, the bit rate will be changed, the data size will be reduced, and it will be replaced with still image data. The data size of each content material can be reduced by processing or the like.

  Here, not only the content material 522, 523, 524 and the BML data 521 with the reduced data size are transmitted, but also the original content material 511, 512, 513 continues after the content material with the reduced data size is transmitted for a certain period of time. By transmitting 514, the average content acquisition time of the content display terminal is reduced, and the original content can be displayed on the terminal within the scheduled transmission time of the original content. 5B, 521, 522, 523, and 524 in FIG. 5B are sent for 15 seconds, and then 511, 512, 513, and 514 in FIG. 5A are sent for 15 seconds. It is an instruction. Here, the average time required for data acquisition is obtained as follows: data reduction content acquisition time × sending time ratio + original content acquisition time × sending time ratio. In the example of FIGS. 5A and 5B, when the original content is sent for 30 seconds as shown in FIG. 6, the content that has been taken for an average acquisition time of 5 seconds at the display terminal is the data reduced content. And the original content are transmitted in combination, the average acquisition time is shortened to 3 × 1/2 + 5 × 1/2 = 4 seconds.

  In addition, when the content of the content material to be sent out changes, it is desirable that the screen display of the content display terminal also changes automatically. The module update function for automatically detecting the content update in BML and the screen when the module update is detected are displayed. A description related to the function to be updated is newly added and transmitted from the content editing terminal.

  According to ARIB STD-B35 “Data broadcasting program exchange system standard in digital broadcasting”, a description example in the case of sending a material as shown in FIG. 5A for 30 seconds is as shown in FIG. In FIG. 7, the material 511 is set to start. bml, material 512 with face. jpeg, the material 513 is hart. jpeg, the material 514 is present. jpeg. As shown in FIG. 5B, the description when the edited content is sent for 15 seconds and then the original content is sent for 15 seconds is as shown in FIG. In FIG. 8, the material 521 is set as start. bml, material 522 is changed to face_reduced. png, the material 523 is hart_reduced. png, material 524 is present_reduced. png.

  FIG. 9 shows the correspondence with the processing flow of FIG. 2. The original content 911 and the transmission information 912 shown in FIG. 5A read in step A1 are shown in FIG. The amount of data is reduced in the content 921 as shown in FIG. 5B, and transmission information corresponding to FIG. 5B is generated as shown in 922 in step A6.

  FIG. 10 shows the relationship between the material conversion means 13 of FIG. 1, the editing condition storage unit 21, and the processing flow of FIG. 2. Here, the editing is performed to reduce the data size if the content acquisition time is 1 second or more. In step A3, the condition 101 describing the start of work is read from the editing condition storage unit 21 to the acquisition time calculation means 12 to determine whether the content acquisition time satisfies the condition 101. If the condition is satisfied, JPEG is used. If the data is in the format, a condition 102 that the data size can be reduced to 50% by converting to the PNG format, and a condition 103 that instructs to send the content with the data amount reduced by dividing the sending time in half and the original content 103 Is read from the editing storage unit 21 into the material conversion unit 13 in step A4, and three content materials in JPEG format are read. Data size in PNG format at step A5 is halved. Here, if the condition 103 is an instruction for conversion at an interval of 10 seconds (in the condition 103, “step: 10s” instead of “step: even”), the transmission time of the content material to be reduced is 30 seconds. For example, the material conversion means 13 divides the data reduction amount into two stages, and the three types of original content and the two types of converted content with different reduction amounts are different in the content material transmitted every 10 seconds. ) Create a page. In the specification of conversion data such as the condition 102, a plurality of file types to be converted may be specified. (For example, in the condition 102, “transformTo: png” is changed to “transformTo: jpg: png”). In addition, not only the extension but also the case where a specific character string is included in the file name can be specified (for example, “logo” is included in the file name of the content material). If the processing description is included, “Rule-Type: reduced, name-match: logo, trasformTo: jpg, limit: 0.8”). By designating a case where a specific character string is included in the file name, conversion of a specific content material can be prohibited (for example, “Rule-Type: no-reduced, name-match: spores”). Notation). In addition, the transmission time specified in the condition 103 may specify the transmission time of each material having a different reduction amount in addition to the above equal division, and the next data amount reduction is performed for the material with the minimum data reduction amount for 15 seconds. The specified material is specified for 10 seconds, the original content is specified for 5 seconds (for example, “step: 15s, 10s, 5s”) or a time ratio (for example, “step: ratio (2: 1)”). it can.

  FIG. 11 shows the relationship between the time-series change processing means 14 of FIG. 1, the editing condition storage unit 21, and FIG. Here, the transmission information of the original content is the instruction 111 for 30 seconds, but the time-series change processing means 14 is in accordance with the condition 113 that the transmission time of the editing condition storage unit 21 is halved between the original content and the edited content. Indicates that the transmission information 112 is generated in which the transmission time of the original content is set to 15 seconds after the edited content is transmitted for 15 seconds.

  Next, the operation of the second embodiment of the present invention will be described using specific examples. Although the present embodiment has the same configuration as that of the first embodiment, the result edited by the material conversion means 13 and the time-series change processing means 14 in FIG. 3 is displayed on the screen, and the editing result is changed on the screen. You will be able to give instructions.

  An example of the editing screen in this embodiment is shown in FIG. In the figure, the display state, data size, and transmission information of the original content are presented on the left half, and the edited content is presented on the right half. When display playback is instructed on the playback control panel 123 as the preview means 36, the content edited and processed in the first embodiment of the present invention displays the result of simulating the actual display terminal display operation over time. Present in area 124. While confirming the display state visually, the parties involved in content production, management, etc., the contents of the compression ratio display 121 of the individual material of the edited content as the conversion instruction means 37, the transmission time display, and the transmission order display 122 By changing the contents, the contents can be edited and processed into an appropriate state.

It is a block diagram which shows the structure of the content editing apparatus which is the 1st Embodiment of this invention. It is a flowchart which shows operation | movement of the content editing apparatus of FIG. It is a block diagram which shows the structure of the content editing apparatus which is the 2nd Embodiment of this invention. 4 is a flowchart showing the operation of the content editing apparatus of FIG. 3. FIG. 5A shows a specific example of the original content. FIG. 5B is a diagram showing a specific example of the edited content. It is a figure which shows the specific example of the change of the transmission information before and behind edit. It is a figure which shows the specific example of sending information. It is a figure which shows the specific example of the change of sending information. It is a figure which shows operation | movement of the raw material conversion means of FIG. 1, and a time series change process means. It is a flowchart which shows operation | movement of the raw material conversion means of FIG. It is a figure which shows operation | movement of the time series change process means of FIG. It is a figure which shows the specific example of the screen which the preview means of FIG. 3 displays.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 3 Data processing apparatus 2 Storage apparatus 4, 5 Content editing apparatus 11 Content reading means 12 Acquisition time calculation means 13 Material conversion means 14 Time-series change processing means 15 Content output means 21 Editing condition storage part 35 Preview means 36 Conversion instruction means

Claims (21)

A conversion condition indicating a condition for generating conversion material data by reducing the data size of the raw material data constituting the original content for data broadcasting, a conversion content including the conversion material data, and a transmission condition of the original content An editing condition storage unit for storing;
In accordance with the conversion conditions, material conversion means for generating the conversion material data,
Time-series change processing means for generating conversion transmission information indicating the conversion content and the transmission order and transmission time of the original content so as to be equal to the time indicated by the transmission information of the original content according to the transmission conditions;
A content editing apparatus comprising: The conversion condition includes an upper limit reduction rate indicating an upper limit of the data size reduction rate,
2. The content according to claim 1, wherein the material converting means reduces the data size so that a ratio of a data size of the converted material data to a data size of the original material data is equal to or greater than the reduction rate. Editing device. The conversion condition includes information indicating whether or not data format conversion is permitted,
The content editing apparatus according to claim 1, wherein the material conversion unit converts a data format of raw material data in a data format for which conversion of the data format is permitted. The conversion condition includes a target acquisition time,
When the converted content and the original content are transmitted according to the converted transmission information, the material conversion means takes a time required for the display terminal that acquires and displays these contents to acquire the converted content and the original content. The content editing apparatus according to any one of claims 1 to 3, wherein the data size is reduced so that is less than or equal to the target time.   5. The content editing apparatus according to claim 1, wherein the material conversion unit generates a plurality of conversion material data having different data size reduction rates for each of the raw material data.   6. The content editing apparatus according to claim 1, wherein the editing condition is defined for each data format of the raw material data. When the original content is sent according to the original sending information, when the converted content and the original content are sent according to the converted sending information, the display state of the content on the display terminal, and the data size reduction by the material converting means Preview means for displaying the contents and the converted transmission information;
A conversion instructing unit for receiving the input of information for instructing the change of the conversion condition and the transmission condition, and updating the conversion condition and the transmission condition stored in the editing condition storage unit,
The data size conversion unit and the time-series change processing unit regenerate the conversion material data and the converted transmission information, respectively, according to the updated conversion condition and transmission condition. Item 7. The content editing device according to any one of Items 6 above. A conversion condition indicating a condition for generating the conversion material data by reducing the data size of the original material data constituting the original content for data broadcasting is read from the storage device, and the conversion material data is generated according to the conversion condition. Material conversion process,
The conversion contents including the conversion material data and the transmission conditions of the original contents are read from the storage device, and the conversion contents and the transmission order of the original contents are set to be equal to the time indicated by the transmission information of the original contents according to the transmission conditions. And a time-series change processing step for generating conversion transmission information indicating the transmission time, and
A content editing method characterized by comprising: The conversion condition includes an upper limit reduction rate indicating an upper limit of the data size reduction rate,
9. The content according to claim 8, wherein in the material conversion step, the data size is reduced so that a ratio of a data size of the converted material data to a data size of the original material data is equal to or greater than the reduction rate. Editing method. The conversion condition includes information indicating whether or not data format conversion is permitted,
The content editing method according to claim 8 or 9, wherein, in the material conversion step, the data format of the raw material data in a data format for which conversion of the data format is permitted is converted. The conversion condition includes a target acquisition time,
In the material conversion step, when the converted content and the original content are transmitted according to the conversion transmission information, the time required for the display terminal that acquires and displays these contents to acquire the converted content and the original content The content editing method according to any one of claims 8 to 10, wherein the data size is reduced so that is less than or equal to the target time.   12. The content editing method according to claim 8, wherein in the material conversion step, a plurality of conversion material data having different data size reduction rates are generated for each of the raw material data.   13. The content editing method according to claim 8, wherein the editing condition is determined for each data format of the raw material data. When the original content is transmitted according to the original transmission information, when the converted content and the original content are transmitted according to the converted transmission information, the display state of the content on the display terminal, and the data size in the material conversion step And a preview process for displaying the converted transmission information,
A conversion instruction step for receiving the input of information for instructing the change of the conversion condition and the transmission condition and updating the conversion condition and the transmission condition stored in the storage device;
14. The regeneration process according to claim 8, further comprising: a regeneration step of regenerating the conversion material data and the conversion transmission information in accordance with the updated conversion condition and transmission condition. Content editing method. On the computer,
A conversion condition indicating a condition for generating the conversion material data by reducing the data size of the original material data constituting the original content for data broadcasting is read from the storage device, and the conversion material data is generated according to the conversion condition. Material conversion processing,
The conversion contents including the conversion material data and the transmission conditions of the original contents are read from the storage device, and the conversion contents and the transmission order of the original contents are set to be equal to the time indicated by the transmission information of the original contents according to the transmission conditions. And time-series change processing for generating conversion transmission information indicating transmission time, and
A content editing program characterized in that The conversion condition includes an upper limit reduction rate indicating an upper limit of the data size reduction rate,
16. The content according to claim 15, wherein in the material conversion process, the data size is reduced so that a ratio of a data size of the converted material data to a data size of the original material data is equal to or greater than the reduction rate. Editing program. The conversion condition includes information indicating whether or not data format conversion is permitted,
17. The content editing program according to claim 15, wherein in the material conversion process, a data format of raw material data having a data format permitted to be converted is converted. The conversion condition includes a target acquisition time,
In the material conversion process, when the converted content and the original content are transmitted according to the conversion transmission information, the time required for the display terminal that acquires and displays these contents to acquire the converted content and the original content The content editing program according to any one of claims 15 to 17, wherein the data size is reduced so that is less than or equal to the target time.   The content editing program according to any one of claims 15 to 18, wherein in the material conversion processing, a plurality of conversion material data having different data size reduction rates are generated for each of the raw material data.   20. The content editing program according to claim 15, wherein the editing condition is determined for each data format of the raw material data. In the computer,
When the original content is sent according to the original sending information, when the converted content and the original content are sent according to the converted sending information, the display state of the content on the display terminal, and the data size reduction by the material conversion processing Preview processing for displaying the content and the transmission information after conversion;
A conversion instruction process for accepting input of information for instructing the change of the conversion condition and the sending condition, and updating the conversion condition and the sending condition stored in the editing condition storage unit;
21. The regeneration process of regenerating the conversion material data and the post-conversion transmission information according to the updated conversion condition and transmission condition is executed. Content editing program.

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