JP6926802B2 - Content processing equipment, content processing system, content processing method, and content processing program - Google Patents

Description

The present invention relates to a data processing technique for streaming data.

Certain content is represented by a set of data. Each data included in the series of data defines a processing time for processing the data in the processing for the series of data. Further, in the series of data, in parallel with reading each data in order from the beginning in the processing time, it is possible to process each data that has been read according to the processing time specified for each data. .. Here, the kind of content is, for example, video (moving image) or audio. Further, the processing for a series of data is, for example, reproduction of a series of data. Hereinafter, such a series of data will be referred to as "streaming data". Further, in the following, the content represented by the streaming data is simply referred to as "content", the device for processing the content is referred to as "content processing device" or simply "processing device", and the device for reproducing the content is referred to as "playback device". It will be referred to as.

An example of a technique relating to a reproduction device is disclosed in Patent Document 1. The image / audio reproduction device of Patent Document 1 reads each data included in a series of moving image data in order from the beginning in the processing time, and in parallel, reproduces each data that has been read in order from the beginning in the processing time. The moving image data is stored in a storage medium (flash memory) whose bit rate for reading data (hereinafter referred to as "access speed") is slower than the bit rate for data reproduction (hereinafter referred to as "reproduction speed"). ing. Therefore, when the reading of the moving image data and the reproduction of the moving image data are started at the same time, the reading of the moving image data cannot catch up with the reproduction of the moving image data. Therefore, the image / audio playback device pre-reads the video data by the amount of data necessary to realize the purpose that the playback of the video data cannot catch up with the reading of the video data while the playback of the video data is suspended. .. That is, the image / audio reproduction device of Patent Document 1 has a problem that a waiting time occurs until the content requested by the user can be viewed.

Further, the data size of the streaming data is the data size of the storage device (or storage medium) in which the time from the request for reading the data to the actual start of reading the data (hereinafter referred to as "access time") is short. Often larger than the storage capacity. Therefore, streaming data is often stored in a storage device (or storage medium) having a long access time, although the price per storage capacity is low. Therefore, the playback device may not always be able to immediately start playing the content when the user requests the viewing of the content. In particular, in a tertiary storage device (magnetic tape robot, magneto-optical disk library, etc.) that reproduces the target storage medium after selecting the target storage medium from a large number of storage media, the access time can reach several tens of seconds. That is, the playback device has a problem that a waiting time occurs before the content requested by the user can be viewed.

Patent Documents 2 and 3 disclose an example of a technique capable of shortening the waiting time for viewing content. For example, the recording / reproducing device of Patent Document 3 stores in advance data representing the beginning portion of the reproduction order of the contents stored in the optical disk in the non-volatile memory as the opening cache. Then, when the recording / reproducing device reproduces the data representing the content stored in a certain optical disk, the recording / reproducing device immediately starts the reproduction of the opening cache stored in the non-volatile memory. At the same time, the recording / playback apparatus starts to store the data representing the portion following the beginning portion of the content stored in the optical disk with respect to the reproduction order in the non-volatile memory as a reproduction cache. Then, the recording / reproducing device starts the reproduction of the reproduction cache after the reproduction of the opening cache is completed. As a result of the above operation, in the recording / playback device of Patent Document 3, there is no waiting time for viewing the content. Also in the karaoke system of Patent Document 2, there is no waiting time in playing the music data based on the same principle as the recording / playback device of Patent Document 3.

Further, Patent Document 4 discloses an example of a technique capable of reproducing one content using two types of streaming data having different qualities. In the moving image reproducing device of Patent Document 4, the screen includes a main area, a next area, and a previous area. The main region has a larger area than the next region and the previous region. In response to the user selecting one main program, the video playback device reads and reads from the server device a video fragment representing the video content of each of the main program, the next program of the main program, and the previous program of the main program. Store the video fragment in the buffer section. Here, the moving image playback device reads out a moving image fragment of a high-quality moving image for the main program, and reads out a moving image fragment of a low-quality moving image for the next program and the previous program. In addition, the user can change the main program to another program (next program before change or previous program before change). Then, the moving image playback device displays the moving image contents of the main program, the next program, and the previous program in the main area, the next area, and the previous area in order. Here, the moving image playback device preferentially reproduces the moving image fragment of the high-quality moving image in the main area, and preferentially reproduces the moving image fragment of the low-quality moving image in the next area and the previous area.

Japanese Unexamined Patent Publication No. 2003-250116 Japanese Unexamined Patent Publication No. 8-152892 Japanese Unexamined Patent Publication No. 2012-89210 Japanese Unexamined Patent Publication No. 2010-41246

However, the recording / reproducing device of Patent Document 3 cannot start the reproduction of the reproduction cache unless the accumulation of the reproduction cache is started when the reproduction of the opening cache is completed. In order to increase the possibility that the recording / playback device has started accumulating the playback cache when the playback of the opening cache is completed, it is necessary to lengthen the playable time of the opening cache. However, there is a problem that the data size of the opening cache increases and the required storage capacity (cost) of the non-volatile memory increases as the reproducible time of the opening cache increases. That is, when the recording / reproducing device of Patent Document 3 is requested to reproduce the data representing the content stored by the optical disk, the recording / reproducing device has the storage capacity of the non-volatile memory for storing the data. There is a problem that the suppression, the immediate start of the reproduction, and the continuation of the reproduction without interruption cannot be achieved at the same time.

In the recording / reproducing device of Patent Document 3, the greater the dispersion of the access time in the storage device, the higher the possibility that the recording / reproducing device has not started accumulating the reproduction cache when the reproduction of the opening cache is completed. In particular, when data representing the content is stored in a tertiary storage device (magnetic tape robot, magneto-optical disk library, etc.), the difference in the storage position of each storage medium in the tertiary storage device, the drive, robot, etc. at each time point, etc. There is a difference in the usage status of. Due to these differences and the like, the distribution of access time in the storage device becomes large. Alternatively, when the data representing the content is stored in the network storage or the server, the distribution of the access time in the storage device becomes large due to the difference in the network usage (congestion) status, the presence or absence of a failure in the network, and the like. .. That is, assuming the worst case in the usage status of drives and robots, the usage status of networks, the occurrence of failures, etc., it is necessary to cache the data representing the entire contents at the beginning.

The present invention has been made in view of the above problems, and when a processing device is requested to process the content stored by the storage device, the processing device has a storage capacity required for storing the content. The main purpose is to achieve both suppression, immediate start of processing on the content, and continuation of processing on the content without interruption.

In one aspect of the present invention, the content processing device is a portion of a series of original data representing a certain content stored in the storage device at the beginning of the processing time in which the processing is performed on the series of original data. A series of duplicated opening data and a series of trailing data that is the part of the series of original data that follows the series of opening data in terms of processing time, with the amount of data reduced with a decrease in quality. A copy of a series of low-quality data stored and stored, where the access time to the series of opening data and the series of low-quality data is shorter than the access time to the series of original data stored in the storage device. Control to read a series of end data from the storage unit and the storage device in order from the front regarding the processing time, and to perform processing on the read series of end data according to the processing time, and a series of opening data or a series from the duplicate storage unit. A control unit that reads at least one of the low-quality data of the above in order from the front with respect to the processing time, and controls at least one of the read series of opening data or a series of low-quality data according to the processing time. When the control unit is requested to (I) process a series of original data, the control unit (i) requests the storage device to read the series of end data, and (ii) stores the data in the duplicate storage unit. Processing for a series of opening data and a series of low-quality data is started, and (II) processing is performed on a certain ending data of the series of ending data read in reading the series of ending data. When it became possible to do so, (i) the processing for the series of opening data or the series of low-quality data that had been performed was stopped, and (ii) some of the ending data of the series of ending data. Processing is performed on each subsequent tail data with respect to the processing time.

In one aspect of the present invention, the content processing system is the opening portion of a series of original data representing a certain content stored in the storage device in the processing time in which the processing is performed on the series of original data. A series of duplicated opening data and a series of trailing data that is the part of the series of original data that follows the series of opening data in terms of processing time, with the amount of data reduced with a decrease in quality. A copy of a series of low-quality data stored and stored, where the access time to the series of opening data and the series of low-quality data is shorter than the access time to the series of original data stored in the storage device. Control to read a series of end data from the storage unit and the storage device in order from the front regarding the processing time, and to perform processing on the read series of end data according to the processing time, and a series of opening data or a series from the duplicate storage unit. A control unit that reads at least one of the low-quality data of the above in order from the front with respect to the processing time, and controls at least one of the read series of opening data or a series of low-quality data according to the processing time. When the control unit is requested to (I) process a series of original data, the control unit (i) requests the storage device to read the series of end data, and (ii) stores the data in the duplicate storage unit. Processing for a series of opening data and a series of low-quality data is started, and (II) processing is performed on a certain ending data of the series of ending data read in reading the series of ending data. When it became possible to do so, (i) the processing for the series of opening data or the series of low-quality data that had been performed was stopped, and (ii) some of the ending data of the series of ending data. It is provided with a content processing device and a storage device that perform processing on each subsequent tail data with respect to the processing time.

In one aspect of the present invention, the content processing method is the beginning portion of the processing time in which the processing is performed on the series of original data in the series of original data representing a certain content stored in the storage device. A series of duplicated opening data and a series of trailing data that is the part of the series of original data that follows the series of opening data in terms of processing time, with the amount of data reduced with a decrease in quality. A copy of a series of low-quality data stored and stored, where the access time to the series of opening data and the series of low-quality data is shorter than the access time to the series of original data stored in the storage device. Control to read a series of end data from the storage unit and the storage device in order from the front regarding the processing time, and to perform processing on the read series of end data according to the processing time, and a series of opening data or a series from the duplicate storage unit. A control unit that reads at least one of the low-quality data of the above in order from the front with respect to the processing time, and controls at least one of the read series of opening data or a series of low-quality data according to the processing time. It is a content processing method in the provided content processing device, and when the control unit requests (I) processing for a series of original data, (i) requests the storage device to read a series of end data, and also. (Ii) Starts processing for a series of opening data and a series of low-quality data stored by the duplicate storage unit, and (II) of the series of ending data read in reading the series of ending data. When it becomes possible to perform processing on a certain end data, (i) processing on a series of opening data or a series of low-quality data that was being processed is stopped, and (ii) ) Of a series of tail data, processing is performed on each tail data that follows a certain tail data with respect to the processing time.

In one aspect of the present invention, the content processing program or the recording medium in which the content processing program is stored is a process for a series of original data in a series of original data representing a certain content stored in the storage device. Of the quality of a series of opening data that is a duplicate of the opening part of the processing time in which the processing is performed in, and a series of ending data that is the part of the original data that follows the series of opening data with respect to the processing time. A series of low-quality data, which is a duplicate whose amount of data has been reduced with a decrease, is stored and stored, and the access time to the series of opening data and the series of low-quality data is stored in the storage device. A copy storage unit that is shorter than the access time for a series of original data, and a control that reads a series of end data from the storage device in order from the front regarding the processing time and executes processing according to the processing time for the read series of end data. And, at least one of a series of opening data or a series of low-quality data is read out from the duplicate storage unit in order from the front regarding the processing time, and at least one of the read series of opening data or a series of low-quality data is read according to the processing time. When a computer provided with a content processing device having a control unit for performing processing and a control unit for performing processing is requested to (I) process a series of original data, (i) a storage device for reading a series of end data. (Ii) The procedure for starting processing on a series of opening data and a series of low-quality data stored by the duplicate storage unit, and (II) reading of a series of ending data. When it becomes possible to perform processing on a certain ending data in a series of ending data, (i) processing on a series of opening data or a series of low-quality data that was being processed. (Ii) Of a series of tail data, a certain tail data is made to execute the procedure of performing processing on each subsequent tail data with respect to the processing time.

According to the present invention, when a processing device is requested to process the content stored by the storage device, the processing device suppresses the storage capacity required for storing the content and processes the content. It has the effect of being able to both start immediately and continue processing the content without interruption.

It is a block diagram which shows an example of the structure of the content processing system in 1st Embodiment of this invention. It is a figure for demonstrating an example of the structure concerning a series of data in 1st Embodiment of this invention. It is a flowchart which shows the operation of the content processing apparatus in 1st Embodiment of this invention. It is a figure for demonstrating operation of the content processing apparatus in 1st Embodiment of this invention. It is a figure for demonstrating operation of the content processing apparatus in 1st Embodiment of this invention. It is a figure for demonstrating operation of the modification of the content processing apparatus in 1st Embodiment of this invention. It is a figure for demonstrating operation of the modification of the content processing apparatus in 1st Embodiment of this invention. It is a block diagram which shows an example of the structure of the content processing system in the 2nd Embodiment of this invention. It is a flowchart which shows the operation of the content processing apparatus in the 2nd Embodiment of this invention. It is a flowchart which shows the operation of the content processing apparatus in the 2nd Embodiment of this invention. It is a block diagram which shows an example of the hardware composition which can realize the content processing apparatus in each embodiment of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In all the drawings, the same components are designated by the same reference numerals, and the description thereof will be omitted as appropriate.
(First Embodiment)
The first embodiment of the present invention, which is the basis of each embodiment of the present invention, will be described.

The configuration in this embodiment will be described.

FIG. 1 is a block diagram showing an example of the configuration of the content processing system according to the first embodiment of the present invention. However, in FIG. 1, the component shown by the broken line represents an additional component.

The content processing system 400 of the present embodiment includes a storage device 200 and a content processing device 100. The content processing system 400 may further include an output device 300.

The storage device 200 stores in advance a series of original data 210 representing a certain content. The storage device 200 is, for example, a magnetic tape robot, a magneto-optical disk library, a magnetic tape drive, a magneto-optical disk drive, a file server, a network storage, a hard disk drive, or a solid state drive. Here, it is assumed that the processing time is specified for each original data included in the series of original data 210. The processing time shall be the time (process start time, processing duration, etc.) at which the processing for each data is executed (executed) in the processing for a series of data. The processing time is defined by, for example, the delay time between the processing start times for each source data included in the series of source data 210. Alternatively, the processing time is defined by, for example, the duration of processing for a predetermined number of source data included in the series of source data 210. Alternatively, the processing time is determined by, for example, the relative processing time for each original data included in the series of original data 210, with the processing time for the first original data in the processing time included in the series of original data 210 as the reference time. Is regulated.

In the following description, the arrangement (position, length, etc.) of each data in a series of data means the timing (start time, duration, etc.) in the processing for each data in the processing for the series of data. Hereinafter, this timing will be referred to as "processing time". Once the arrangement of each data in a series of data (that is, the processing time) is determined, it is possible to determine the arrangement (contextual relationship, whether or not to follow, etc.) of one data with respect to another data. Further, if the processing time is determined, the order in which each data is processed can also be determined. For example, the "beginning" means a part of a series of data that is continuous from the processing start time in the processing time to a certain time. Further, the fact that a series of data B "follows" a series of data A means that the processing time for the series of data A is continuous with the processing time for the series of data B. Further, the "end" means a series of data portions in the processing time that are continuous from a certain time to the processing end time.

The processing time for the series of data A is inherited by the series of data B even when the series of data A is converted into the series of data B by a specific type of conversion. The specific type of conversion is, for example, cutting out a continuous series of data (starting data, ending data, etc.), or reducing the amount of data with a certain deterioration in quality (described later). The processing time (eg, video playback time) for each piece of data for which these particular types of conversions have been performed is the same as the processing time for each piece of data before these particular types of conversions have been performed. That is, for example, a series of data A (including ..., _ai , _{ai + 1} , _{ai + 2} , ...) Of a series of data B (a _{i + 1} , a _{i + 2} , ...) By a specific type of conversion. If each is converted to ( _{including converted bi + 1} , bi _{+ 2} , ...), If a _{i + 1} , a _{i + 2} , ... Follows a _i in terms of processing time, then bi _{+ 1} , b. _{It is assumed that i + 2} , ... Follows _ai in terms of processing time. That is, if a _{i + 1} follows a _i in terms of processing time and a _{i + 1 corresponds} to bi _{+ 1} in a one-to-one correspondence with respect to processing time, then in each embodiment of the present invention and its modifications, bi _{+ 1} becomes a _i . It will be referred to as succeeding in terms of processing time. However, in the reduction of the amount of data accompanied by the deterioration of quality, when a plurality of data are converted (thinned out) into one data (when converted into a many-to-one relationship), the converted data is related to a certain data. The processing time is the same as the total processing time for the plurality of data before conversion corresponding to the data. That is, for example, a series of data A (including ..., _ai , _{ai + 1} , _{ai + 2} , ...) Is converted into a series of data B ({ _{ai + 2} , _{ai + 3} }, {a) by a specific type of conversion. _{When each of i + 4} , a _{i + 5} }, ... is converted to converted bi _{+ 2} , bi _{+ 4} , ...), a _{i + 1} , a _{i + 2} , ... Is _{converted to a i.} If it follows with respect to, it is referred to as bi _{+ 2} , bi _{+ 4} , ... Sequel to _ai with respect to processing time.

Further, in the series of original data 210, in parallel with reading each original data in order from the beginning in the processing time, it is possible to execute the processing according to the processing time for each original data whose reading is completed. do. That is, the series of original data 210 is the above-mentioned streaming data. Here, in order to execute two or more processes in parallel, a plurality of processor cores execute in parallel by division of labor, and for example, one processor executes two or more processes in pseudo-parallel. And shall be included.

Further, in the series of original data 210, the amount of data is reduced due to deterioration in quality regarding spatial resolution (resolution in video, etc.), time resolution (frame rate in video, etc.), or amplitude resolution (number of colors in video, etc.). It is assumed that it is possible to execute the processing according to the processing time for each of the original data. Here, it is assumed that the time required for processing the series of original data 210 whose data amount has been reduced due to the deterioration of quality is the same as the time required for processing the series of original data 210.

The content represents arbitrary information represented by the series of original data 210 described above. The contents are, for example, video (video), audio, and log. The processing for a series of original data 210 representing the contents is, for example, video reproduction, audio reproduction, and log analysis. Here, in the log analysis, for example, by replaying a log recording the occurrence of a series of events, the replayed series of events is input to the simulator, and various amounts at the time of occurrence of the input series of events are calculated by the simulator. To analyze. Here, the occurrence of an event is, for example, the occurrence of meteorological information (temperature, amount of sunshine, amount of precipitation, wind speed, wind direction, etc.). The quantities at the time of the event are, for example, the amount of electricity used.

In the above-mentioned content example, in the video content, for example, the spatial resolution is the resolution, the time resolution is the frame rate, and the amplitude resolution is the number of gradations or the number of colors. In the audio content, for example, the spatial resolution is the number of channels, the temporal resolution is the sampling rate, and the amplitude resolution is the number of quantization bits of sound pressure. In the log contents, for example, the time resolution is the sampling rate, the spatial resolution is the number of event types, and the amplitude resolution is the number of quantization bits of the measured value.

In the above-described content example, each source data included in a series of source data 210 representing a certain content is read from the storage device 200 in the order of processing in the series of source data 210. The processing time is defined for each source data included in the series of source data 210. Further, in the above-mentioned content example, in parallel with reading each original data in order from the beginning in the processing time, processing (reproduction, analysis, etc.) is performed on the read original data according to the processing time. It is possible to do it.

In the above-mentioned content example, the amount of each original data can be reduced by lowering the quality regarding the time resolution, the spatial resolution, the amplitude resolution, and the like. However, in reducing the amount of data due to the deterioration of the quality of the series of original data 210, the processing time specified for each original data is not changed. In the above-mentioned content example, even for a series of original data 210 in which the amount of data is reduced due to deterioration of quality, the processing device performs processing (video reproduction, audio reproduction, audio reproduction, etc.) according to a specified processing time. Log analysis) is possible.

The content processing device 100 includes a duplication storage unit 110 and a control unit 150.

The duplicate storage unit 110 stores a series of opening data 120 and a series of low-quality data 130 in advance.

FIG. 2 is a diagram for explaining an example of a structure relating to a series of data according to the first embodiment of the present invention. Specifically, FIG. 2 schematically shows the configuration of partial data constituting various series of data in the present embodiment. However, in FIG. 2, in reading a certain series of data, the elements read earlier are arranged on the left side, and the elements read later are arranged on the right side. Further, a series of data includes a header (represented by "H" or "h") and data (represented by "D", "F", or "d"). Uppercase letters (“H”, “F”, or “D”) indicate data in which the values in the series of original data 210 have not been converted, and lowercase letters (“h” or “d”) indicate values in the series of original data 210. Indicates the converted data. A set of data includes one header and one or more data. Each piece of data includes a header for each piece of data. One data is, for example, a series of values obtained by converting one or more amplitude values, a time series of amplitude values, and a time series of amplitude values (discrete cosine transform, etc.), or those values are spaces (frames, frames, etc.). Represents a set of channels, event types, etc.). The header represents information (referred to as "processing-related information") related to the processing of each data such as time resolution, amplitude resolution, or spatial resolution. The processing-related information defines the processing time for a series of data. The header in a series of data or the header in each data may be omitted. The set of data may include a trailer. In the following description, for the sake of simplicity, the header and trailer will be omitted as appropriate.

The series of opening data 120 is included in the series of original data 210 (H ₁ , D ₁ , D ₂ , ..., D _n ; n is a natural number) stored by the storage device 200, and is the opening portion (n) related to the processing time. It is assumed that the duplicate includes _{the header h 2} with respect to D ₁ , D ₂ , ..., D _m ; m is a natural number of n or less). Here, the number (m) of the original data included in the series of opening data 120 may be determined for each series of original data 210, or may be uniformly determined for all the series of original data 210. .. In the present embodiment, the series of opening data 120 is pre-generated based on the series of original data 210 by, for example, a content editing tool.

The series of low-quality data 130 is a header in which the amount of data is reduced with the deterioration of the quality of the _{series of end data (D m + 1} , D _{m + 2} , ..., D _{n) contained in the series of original data 210.} It is assumed that the duplication includes h _{3 (dm + 1} , dm _{+ 2} , ..., D _n). Here, the series of end data (D _{m + 1} , D _{m + 2} , ..., D _n ) follows the series of opening data 120 (D ₁ , D ₂ , ..., D _m ) with respect to the processing time. It is assumed that it is a part of the original data 210 (D ₁ , D ₂ , ..., D _{n) of.} In the present embodiment, it is assumed that the series of low-quality data 130 is generated by, for example, a transcoder based on the series of original data 210 and stored in advance in the duplicate storage unit 110.

The access time for the series of opening data 120 and the series of low-quality data 130 stored in the duplicate storage unit 110 is shorter than the access time for the series of original data 210 stored in the storage device 200. Further, the access speed in the storage device 200 is faster than the bit rate processed in the processing for a series of original data 210. Further, the access speed in the duplicate storage unit 110 is faster than the access speed in the storage device 200. The duplicate storage unit 110 is typically a storage area on the main storage device (random access memory or the like) of the content processing device 100. However, if the access time in the duplicate storage unit 110 is shorter than the access time in the storage device 200, the duplicate storage unit 110 may be a storage area on, for example, a solid state drive, a hard disk drive, or a network storage. good.

When a process for a series of original data 210 is requested, the control unit 150 requests the storage device 200 to read a series of end data. Here, the control unit 150 determines a series of end data based on the number of each opening data included in the series of opening data 120 stored in the duplication storage unit 110. Here, the series of end data (D _{m + 1} , D _{m + 2} , ..., D _{n ) corresponds to the last opening data (D m} ) in the reading order included in the series of opening data 120 in terms of processing time. The data (D _m ) is followed by the read order. In parallel with requesting the read, the control unit 150 starts processing the series of opening data 120 and the series of low quality data 130 stored by the replication storage unit 110. Here, when processing the low-quality data 130, the control unit 150 compensates for the quality of the low-quality data 130, which is lower than that of the original data 210 (reproduces an image by super-resolution technology, etc.). You may.

Further, the control unit 150 receives a series of opening data 120 and a series of low-quality data 130 when a certain ending data read in reading a series of ending data follows the last processed data in terms of processing time. Stops processing for and. Here, the last processed data is a certain opening data included in a series of opening data 120, or a certain low quality data included in a series of low quality data 130, which was last executed with respect to the processing time. It is assumed that. Subsequently, the control unit 150 starts processing for a portion following the last processed data in terms of processing time, which is included in the series of end data read from the storage device 200.

The control unit 150 performs processing on a series of data representing the contents, the control unit 150 performs processing for transmitting the data to the output device 300, and the output device 300 substantially treats the data received from the content processing device 100. Processing may be performed. Substantial processing is, in the above-mentioned example of content, reproduction or analysis of content. In that case, the output device 300 is, for example, a device for reproducing video data, a device for reproducing audio data, or a computer for analyzing log data.

The operation in this embodiment will be described.

FIG. 3 is a flowchart showing the operation of the content processing device 100 according to the first embodiment of the present invention. More specifically, FIG. 3 shows the operation of the control unit 150 in this embodiment. The flowchart shown in FIG. 3 and the following description are examples, and the processing order and the like may be changed, the processing may be returned, or the processing may be repeated according to the desired processing.

First, the control unit 150 receives a processing request for a certain content (step S110).

Next, the control unit 150 stores the reading of the series of end data following the series of start data 120 in the processing time of the series of original data 210 stored by the storage device 200 corresponding to the content. Request 200 (step S120).

Subsequently, the control unit 150 starts processing for a series of opening data 120 and a series of low quality data 130 stored by the duplication storage unit 110 (step S130).

Subsequently, the control unit 150 determines whether or not the processing for the series of opening data 120 and the series of low quality data 130 is completed (step S140). When the processing for the series of opening data 120 and the series of low-quality data 130 is completed (Yes in step S140), the control unit 150 ends the processing. If the processing for the series of opening data 120 and the series of low quality data 130 is not completed (No in step S140), the control unit 150 proceeds to step S150.

Subsequently, the control unit 150 determines whether or not a certain tail data read in reading a series of tail data follows the last processed data in terms of processing time (step S150). When the end data follows the last processed data in terms of processing time (Yes in step S150), the control unit 150 includes a series of opening data 120 and a series of low quality data 130 read from the replication storage unit 110. (Step S160). If the trailing data does not follow the last processed data in terms of processing time (No in step S150), the control unit 150 returns the procedure to step S140.

Subsequently, the control unit 150 starts processing for a portion following the last processed data in terms of processing time, which is included in the series of end data read from the storage device 200 (step S170).

4A and 4B are diagrams for explaining the operation of the content processing device 100 according to the first embodiment of the present invention. More specifically, FIGS. 4A and 4B show the processing time for the control unit 150 in the present embodiment to process the data representing the content.

If the reading of the ending data is started before the processing of the series of opening data 120 is completed (FIG. 4A), when the processing of the series of opening data 120 is completed, the read series of ending data (D _{m + 1) is completed.} , D _{m + 2} , ...) Follows the last processed data (D _m ) in terms of processing time (Yes in step S150 of FIG. 3). Therefore, the control unit 150 cancels the processing for the series of opening data 120 and the series of low quality data 130 (step S160 in FIG. 3). Then, the control unit 150 starts processing for the series of end data from the beginning in the reading order of the series of end data (step S170 in FIG. 3). That is, in the case shown in FIG. 4A, the control unit 150 immediately starts processing on the data whose quality has not deteriorated (a series of opening data 120), and the data whose quality has not deteriorated (a series of opening data 120 or a series of opening data 120). The processing for a series of original data 210) is performed until the end of the processing time.

When the read for the tail data catches up with the processing for the low quality data 130 in the middle of the processing time (FIG. 4B), the read series of tail data ( _{Di + 1} , _{Di + 2} , ...) Is the last. the processed data to the subsequent terms _{(d i)} to the processing time (Yes at step S150 of FIG. 3). Therefore, the control unit 150 cancels the processing for the series of low-quality data 130 (step S160 in FIG. 3). Then, the control unit 150 starts processing for the series of end data from the middle ( _{Di + 1} , _{Di + 2} , ...) With respect to the processing time of the series of end data (step S170 in FIG. 3). That is, in the case shown in FIG. 4B, the control unit 150 immediately starts processing for the data whose quality has not deteriorated (a series of opening data 120), and for the data whose quality has deteriorated (a series of low quality data 130). After the processing is performed in the middle of the processing time, the processing for the data whose quality has not deteriorated (a series of original data 210) is performed until the end regarding the processing time.

As described above, in the content processing device 100 of the present embodiment, the duplication storage unit 110 stores a series of opening data 120 and a series of low quality data 130 in advance. That is, the storage capacity of the duplicate storage unit 110 may be smaller than the case where the entire series of original data 210 is stored because the amount of data in the low quality data 130 is reduced. That is, in the content processing device 100, the storage capacity required for the duplicate storage unit 110 that stores a series of opening data 120 and a series of low-quality data 130 is suppressed.

Further, in the content processing device 100, when the control unit 150 is requested to process the series of original data 210, the control unit 150 immediately starts the process for the series of opening data 120 stored by the duplicate storage unit 110. That is, the content processing device 100 immediately starts processing for the content.

Further, in the content processing device 100, the control unit 150 receives a series of opening data 120 and a series of low-quality data 130 stored by the duplicate storage unit 110 when a process for a series of original data 210 is requested. Start processing. Here, the series of low-quality data 130 includes a portion following the series of opening data 120 in terms of processing time, which is included in the series of original data 210, although the amount of data is reduced with the deterioration of quality. That is, the control unit 150 can execute the process on the data representing the entire contents. That is, the content processing device 100 continues the processing for the content without interruption.

Therefore, in the content processing device 100 of the present embodiment, when the content processing device 100 is requested to process the content stored by the storage device 200, the content processing device 100 needs to store the content. There is an effect that the capacity can be suppressed, the processing for the content can be started immediately, and the processing for the content can be continued without interruption.

That is, the user of the content processing device 100 of the present embodiment uses the content processing device 100, which is cheaper because the storage capacity is suppressed, and the content is processed by immediately starting the processing for the content upon request. Can be used and the processing for the content can be used without interruption.
(First modification)
A first modification of the present embodiment will be described with reference to FIG. 1 again.

In this modification, it is assumed that the series of end data is the entire series of original data 210. That is, the control unit 150 reads out the entire series of original data 210 as a series of end data from the storage device 200. Since the duplicate storage unit 110 stores a series of opening data 120, the control unit 150 originally does not need to read out the part of the series of original data 210 corresponding to the series of opening data 120 again. However, also in this modification, the content processing device 100 operates in the same manner as the above-described operation.

5A and 5B are diagrams for explaining the operation of a modified example of the content processing device 100 according to the first embodiment of the present invention. More specifically, FIGS. 5A and 5B show the processing time for the control unit 150 in the present modification to process the data representing the content.

When the reading of the series of original data 210 catches up in the middle of the processing time of the processing for the opening data 120 (FIG. 5A), the part after the middle of the processing time of the read series of original data 210 ( _{Di + 1} , _{Di + 2} , ...) Follows the last processed data ( _Di ) in terms of processing time (Yes in step S150 of FIG. 3). Therefore, the control unit 150 cancels the processing for the series of opening data 120 and the series of low quality data 130 (step S160 in FIG. 3). Then, the control unit 150 starts processing on the series of original data 210 from the middle ( _{Di + 1} , _{Di + 2} , ...) With respect to the processing time of the series of original data 210 (step S170 in FIG. 3). That is, in the case shown in FIG. 5A, the control unit 150 immediately starts processing for the data whose quality has not deteriorated (a series of opening data 120), and the data whose quality has not deteriorated (a series of opening data 120 or a series of opening data 120). The processing for a series of original data 210) is performed until the end of the processing time.

When the reading of the series of original data 210 catches up in the middle of the processing time of the processing of the series of low-quality data 130 after the processing of the series of opening data 120 is completed (FIG. 5B), the reading series of in the middle and later on the processing time of the original data 210 portions _{(D i + 1, D i} + 2, ···) is followed with respect to the processing time at the end of the processed data _{(d i)} (Yes in step S150 in FIG. 3). Therefore, the control unit 150 cancels the processing for the series of low-quality data 130 (step S160 in FIG. 3). Then, the control unit 150 starts processing on the series of original data 210 from the middle ( _{Di + 1} , _{Di + 2} , ...) With respect to the processing time of the series of original data 210 (step S170 in FIG. 3). That is, in the case shown in FIG. 5B, the control unit 150 immediately starts processing for the data whose quality has not deteriorated (a series of opening data 120), and for the data whose quality has deteriorated (a series of low quality data 130). After the processing is performed in the middle of the processing time, the processing for the data whose quality has not deteriorated (a series of original data 210) is performed until the end of the processing time.
(Second modification)
A second modification of the present embodiment will be described with reference to FIG. 1 again.

In this modification, the series of low-quality data 130 has a series of original data 210 (D ₁ , D ₂ , ..., D _{n ) including the header H 1,} and the amount of data is reduced with a decrease in quality. In addition, it is assumed that it is a duplicate (d ₁ , d ₂ , ..., D _{n ) including the header h 4.} In this modification, the control unit 150 completes the processing for the series of opening data 120 (D ₁ , D ₂ , ..., D _m ) in the processing for the series of opening data 120 and the series of low quality data 130. Once, followed with respect to the processing time to a series of opening data 120, the portion of the series of low-quality data _{130 (d m + 1, d} m + 2, ···, d n) and starts processing for.

In this modification, although the storage capacity of the duplicate storage unit 110 is slightly increased as compared with the first embodiment, the content processing device 100 operates in the same manner as the above-described operation.
(Second Embodiment)
Next, a second embodiment of the present invention based on the first embodiment of the present invention will be described. The content processing device in the present embodiment generates a series of opening data processed within the processing time according to the access time in the measured storage device, and a series of low-quality data corresponding to the series of opening data.

The configuration in this embodiment will be described.

FIG. 6 is a block diagram showing an example of the configuration of the content processing system according to the second embodiment of the present invention. However, in FIG. 6, the component shown by the broken line represents an additional component.

The content processing system 405 of the present embodiment includes a storage device 205 and a content processing device 105. The content processing system 405 may further include an output device 300.

The storage device 205 includes a series of original data 210 and a series of low-quality original data 220 in advance. It is assumed that the series of low-quality original data 220 is data in which the amount of data is reduced by lowering the quality in the duplication of the series of original data 210.

The content processing device 105 includes a duplication storage unit 110, a control unit 150, and a duplication unit 160.

The duplication unit 160 reads a series of original data 210 from the storage device 205. At this time, the duplication unit 160 measures the access time in reading a series of original data 210. Then, the duplication unit 160 determines the number of opening data to be included in the series of opening data 120 based on the measured access time in the storage device 205. Then, the duplication unit 160 generates a series of opening data 120 and a series of low-quality data 130 based on the number of opening data and the read series of original data 210. Then, the duplication unit 160 stores the generated series of opening data 120 and the generated series of low quality data 130 in the duplication storage unit 110.

In the duplication unit 160, for example, the processing time A [seconds] = m [pieces] ÷ processing speed B [pieces per second] required for processing a series of opening data 120 is the access time C [seconds] measured by the duplication unit 160. The number m [pieces] (m is a natural number) of the opening data to be included in the series of opening data 120 is determined so as to match. In this case, if the series of end data is a portion of the series of source data 210 that follows the series of opening data 120 in terms of processing time (see first embodiment), the series of opening data 120. It is highly possible that the reading of a series of tail data from the storage device 205 will start at the time when the processing for is completed. That is, there is a high possibility that processing for a series of low-quality data 130 is unnecessary. The processing time A [seconds] may include an access time C [seconds] + a margin D [seconds] (D is a positive real number) including a margin.

If the number of original data included in the series of original data 210 is n [pieces] (n is a natural number larger than m), the duplication unit 160 has the number of opening data L to be included in the series of low quality data 130. [Pieces] (L is a natural number smaller than n) is determined to be (nm) [pieces]. However, when the processing for the series of original data 210 is the processing related to the viewing of the content by the user (reproduction of video or audio, etc.), the duplication unit 160 does not interfere with the viewing by the user (preferably by the user). In the range (not recognized), the number L [pieces] of the opening data to be included in the series of low quality data 130 may be increased or decreased.

Other configurations in this embodiment are the same as those in the second embodiment.

The operation in this embodiment will be described.

FIG. 7 is a flowchart showing the operation of the content processing device 105 according to the second embodiment of the present invention. More specifically, FIG. 7 shows the operation of the duplication unit 160 in the present embodiment. The flowchart shown in FIG. 7 and the following description are examples, and the processing order and the like may be changed, the processing may be returned, or the processing may be repeated according to the desired processing.

First, the duplication unit 160 reads a series of original data 210 representing a certain content from the storage device 205, and measures the access time when reading the series of original data 210 from the storage device 205 (step S220).

Next, the duplication unit 160 determines the number of opening data to be included in the series of opening data 120 based on the measured access time (step S230).

Subsequently, the duplication unit 160 cuts out a series of opening data 120 from the read series of original data 210, and stores the cut out series of opening data 120 in the duplication storage unit 110 (step S240).

Subsequently, the duplication unit 160 reads out a series of low-quality original data 220 representing the certain content from the storage device 205 (step S250).

Subsequently, the duplication unit 160 is included in the series of low quality data 130 based on the read series of original data 210 and the number of opening data to be included in the series of opening data 120 determined in step S230. The number of low quality data to be generated is determined (step S260).

Subsequently, the duplication unit 160 cuts out a series of low-quality data 130 from the read-out series of low-quality original data 220, and stores the cut-out series of low-quality data 130 in the duplication storage unit 110 (step S270).

The duplication unit 160 generates a series of opening data 120 and a series of low quality data 130 before the processing of the series of original data 210 stored by the storage device 205 is first requested. Then, the duplication unit 160 completes storing the generated series of opening data 120 and the generated series of low quality data 130 in the duplication storage unit 110. That is, the duplication unit 160 executes the steps S220, S230, S240, S250, S260, and S270 described above for all the contents stored in the storage device 205.

However, when the series of low-quality data 130 is an entire copy of the series of low-quality original data 220 (see the second modification in the first embodiment), the duplication unit 160 may perform steps S260 and S270. In the above, the read series of low quality original data 220 is stored in the duplicate storage unit 110 as it is as a series of low quality data 130.

FIG. 8 is a flowchart showing the operation of the content processing device 105 according to the second embodiment of the present invention. More specifically, FIG. 8 shows an operation of generating a series of opening data 120 (step S240 in FIG. 7) or an operation of generating a series of low-quality data 130 in the duplication unit 160 in the present embodiment (FIG. 7). Step S270) is shown. The flowchart shown in FIG. 8 and the following description are examples, and the processing order and the like may be changed, the processing may be returned, or the processing may be repeated according to the desired processing.

First, the duplication unit 160 decodes processing-related information regarding the entire read series of data (a series of original data 210 or a series of low-quality original data 220) (step S310).

Next, the duplication unit 160 changes the time required for processing the series of data among the processing-related information regarding the entire series of decoded data (step S320). When generating a series of opening data 120, the duplication unit 160 changes, for example, information on the time required for processing the series of data to the time required for processing the series of opening data 120 among the processing-related information. When generating a series of low-quality data 130, the duplication unit 160 changes, for example, information on the time required for processing the series of data to the time required for processing the series of low-quality data 130 among the processing-related information. do.

Subsequently, the duplication unit 160 encodes processing-related information regarding the entire changed series of data (step S330).

Subsequently, the duplication unit 160 stores the encoded processing-related information in the duplication storage unit 110 (step S340).

Subsequently, the duplication unit 160 defines a range to be cut out from the series of data based on the number of data to be included in the series of data after cutting out, which is determined in step S230 or S260 of FIG. 7, in the reading order. The data of the start point and the data of the end point that can be placed in the reading order are determined (step S350).

Subsequently, the duplication unit 160 stores the start point data or the end point data determined in step S350 in the duplication storage unit 110 out of a series of data (step S360).

Other operations in this embodiment are the same as the operations in the second embodiment.

As described above, the content processing device 105 of the present embodiment determines the number of opening data to be included in the series of opening data 120 based on the measured access time in the storage device 205. Once the number of opening data to be included in the series of opening data 120 is determined, the time required to process the series of opening data 120 is determined. Therefore, in addition to the effect of the second embodiment of the present invention, the content processing device 105 of the present embodiment can determine the time required for processing the opening data 120 for each content stored in the storage device 205. effective. This embodiment is particularly useful when the access time is significantly different for each content as a result of the data representing the content being stored in different storage media for each content.

That is, the user of the content processing device 105 of the present embodiment can use the content processing device 105 whose storage capacity is suppressed by an appropriate amount for each content and which is cheaper by that amount. Further, the user of the content processing device 105 of the present embodiment can use the content in a state where the time for processing the low-quality content is suppressed by an appropriate time for each content.
(Third Embodiment)
A third embodiment of the present invention, which comprehensively represents each of the above-described embodiments of the present invention, will be described.

The configuration of the present embodiment will be described with reference to FIG. 1 again.

The content processing device 100 includes a duplication storage unit 110 and a control unit 150.

The duplicate storage unit 110 stores a series of opening data 120 and a series of low-quality data 130.

The series of opening data 120 is a duplication of the opening portion of the series of original data 210 representing a certain content stored in the storage device 200 at the processing time in which the processing is performed on the series of original data 210. be.

The series of low-quality data 130 is a copy of the series of end data, which is the portion of the series of original data 210 that follows the series of opening data 120 in terms of processing time, with the amount of data reduced with the deterioration of quality. Is.

The access time for the series of opening data 120 and the series of low-quality data 130 stored in the duplicate storage unit 110 is shorter than the access time for the series of original data 210 stored in the storage device 200.

The control unit 150 reads a series of end data from the storage device 200 in order from the front regarding the processing time, and controls the read end data to be processed according to the processing time.

Further, the control unit 150 reads at least one of a series of opening data 120 or a series of low-quality data 130 from the duplication storage unit 110 in order from the front regarding the processing time, and reads out a series of opening data 120 or a series of low-quality data. Control is performed on at least one of the 130 according to the processing time.

The control unit 150
(I) When processing is requested for a series of original data 210,
(I) Requesting the storage device 200 to read a series of tail data, and at the same time.
(Ii) Processing of a series of opening data 120 and a series of low-quality data 130 stored by the duplication storage unit 110 is started.

In addition, the control unit 150
(II) When it becomes possible to perform processing on a certain tail data of a series of tail data read in reading a series of tail data.
(I) The processing for the series of opening data 120 or the series of low-quality data 130 that was being processed is stopped, and the processing is stopped.
(Ii) Of a series of end data, processing is performed on each end data that follows a certain end data with respect to the processing time.

As described above, in the content processing device 100 of the present embodiment, the duplication storage unit 110 stores a series of opening data 120 and a series of low quality data 130 in advance. That is, the storage capacity of the duplicate storage unit 110 may be smaller than the case where the entire series of original data 210 is stored because the amount of data in the low quality data 130 is reduced. That is, in the content processing device 100, the storage capacity required for the duplicate storage unit 110 that stores a series of opening data 120 and a series of low-quality data 130 is suppressed.

Further, in the content processing device 100, when the control unit 150 is requested to process the series of original data 210, the control unit 150 immediately starts the process for the series of opening data 120 stored by the duplicate storage unit 110. That is, the content processing device 100 immediately starts processing for the content.

Further, in the content processing device 100, the control unit 150 receives a series of opening data 120 and a series of low-quality data 130 stored by the duplicate storage unit 110 when a process for a series of original data 210 is requested. Start processing. Here, the series of low-quality data 130 includes a portion following the series of opening data 120 in terms of processing time, which is included in the series of original data 210, although the amount of data is reduced with the deterioration of quality. That is, the control unit 150 can execute the process on the data representing the entire contents. That is, the content processing device 100 continues the processing for the content without interruption.

Therefore, in the content processing device 100 of the present embodiment, when the content processing device 100 is requested to process the content stored by the storage device 200, the content processing device 100 needs to store the content. There is an effect that the capacity can be suppressed, the processing for the content can be started immediately, and the processing for the content can be continued without interruption.

FIG. 9 is a block diagram showing an example of a hardware configuration capable of realizing the content processing device according to each embodiment of the present invention.

The content processing device 907 includes a storage device 902, a CPU (Central Processing Unit) 903, a keyboard 904, a monitor 905, and an I / O (Input / Output) device 908, which are connected by an internal bus 906. ing. The storage device 902 stores the operation programs of the CPU 903 such as the control unit 150 and the duplication unit 160. The CPU 903 controls the entire content processing device 907, executes an operation program stored in the storage device 902, executes programs such as the control unit 150 and the duplication unit 160, and transmits / receives data by the I / O device 908. The internal configuration of the content processing device 907 is an example. The content processing device 907 may have a device configuration for connecting the keyboard 904 and the monitor 905, if necessary.

The content processing device according to each embodiment of the present invention described above may be realized by a dedicated device, but a computer (information processing device) other than the operation of the hardware in which the I / O device 908 executes communication with the outside. ) Is also feasible. In each embodiment of the present invention, the I / O device 908 is, for example, an input / output unit with a storage device 200 or the like. In this case, the computer reads the software program stored in the storage device 902 into the CPU 903, and executes the read software program in the CPU 903. In the case of each of the above-described embodiments, the software program may be described so as to be able to realize the functions of the respective parts of the content processing device 100 or 105 shown in FIG. 1 or FIG. However, it is assumed that each of these parts includes hardware as appropriate. Then, in such a case, the software program (computer program) can be regarded as constituting the present invention. Further, a computer-readable storage medium containing the software program can be regarded as constituting the present invention.

The present invention has been exemplified above by way of each of the above-described embodiments and modifications thereof. However, the technical scope of the present invention is not limited to the scope described in each of the above-described embodiments and modifications thereof. It will be apparent to those skilled in the art that various changes or improvements can be made to such embodiments. In such cases, new embodiments with such modifications or improvements may also be included in the technical scope of the invention. And this is clear from the matters stated in the claims.

INDUSTRIAL APPLICABILITY The present invention relates to content (video (moving image)) stored in a storage device such as a magnetic tape robot, a magneto-optical disk library, a magnetic tape drive, a magneto-optical disk drive, a file server, a network storage, a hard disk drive, or a solid state drive. It can be used for processing (reproduction, analysis, etc.) of data representing (voice, log, etc.).

100, 105 Content processing device 110 Duplicate storage unit 120 Opening data 130 Low quality data 150 Control unit 160 Duplicate unit 200 Storage device 210 Original data 220 Low quality original data 300 Output device 400, 405 Content processing system 902 Storage device 903 CPU
906 Internal bus 907 Content processing device 908 I / O device

Claims (10)

Of a series of original data representing a certain content stored in a storage device, a series of opening data that is a duplicate of the beginning portion in the processing time in which the processing is performed in the processing for the series of original data, and a series of opening data.
A series of low-quality data that is a duplicate of the series of original data, which is a portion of the series of original data that follows the series of opening data with respect to the processing time, and whose amount of data is reduced with a decrease in quality. Is remembered,
A duplicate storage unit in which the access time for the series of opening data and the series of low-quality data stored is shorter than the access time for the series of original data stored in the storage device.
Control to read the series of tail data from the storage device in order from the front with respect to the processing time, and to perform the processing on the read tail data according to the processing time, and the series from the replication storage unit. At least one of the opening data or the series of low-quality data is read out in order from the front with respect to the processing time, and at least one of the read opening data or the series of low-quality data is subjected to the processing according to the processing time. It is equipped with a control unit that performs control and a control unit that performs control.
The control unit
(I) When the processing for the series of original data is requested,
(I) Requesting the storage device to read the series of tail data, and at the same time.
(Ii) The process for the series of opening data and the series of low-quality data stored by the duplicate storage unit is started.
(II) When it becomes possible to perform the processing on a certain tail data of the series of tail data read in the reading of the series of tail data.
(I) The processing for the series of opening data or the series of low-quality data that was performing the processing is stopped, and the processing is stopped.
(Ii) A content processing device that performs the processing on each of the ending data that follows the certain ending data with respect to the processing time in the series of ending data. When requesting the storage device to read the series of end data, the control unit requests the storage device to read the series of original data instead of the series of end data, and reads from the storage device. The content processing device according to claim 1, which operates by regarding the output series of original data as the end data of the series read from the storage device. The series of low-quality data is a copy of the series of original data in which the amount of data is reduced with a decrease in quality.
In the processing for the series of opening data and the series of low-quality data, the control unit follows the series of opening data with respect to the processing time after the processing for the series of opening data is completed. The content processing apparatus according to claim 1 or 2, wherein the processing is started for a portion of low-quality data of the above. Before the processing on the series of original data is first requested
When reading the series of original data from the storage device and reading the series of original data from the storage device, the access time in the storage device is measured.
Based on the measured access time, the number of each opening data to be included in the series of opening data is determined.
Based on the number of each opening data to be included in the series of opening data, the series of opening data is cut out from the read original series of original data.
The content processing apparatus according to any one of claims 1 to 3, further comprising a duplication unit that completes storing the cut out series of opening data in the duplication storage unit. The storage device further stores a series of low-quality original data, which is a duplicate of the series of original data, in which the amount of data is reduced with the deterioration of quality.
The duplication part
Before the processing on the series of original data is first requested
The series of low-quality original data is read from the storage device,
Based on the number of each opening data to be included in the series of opening data determined, the number of each low quality data to be included in the series of low quality data is determined.
Based on the number of each low-quality data to be included in the determined series of low-quality data, the series of low-quality data is cut out from the read-out series of low-quality original data.
The content processing device according to claim 4, which completes storing the cut-out series of low-quality data in the duplicate storage unit. When each of the low-quality data in the series of low-quality data has a one-to-one correspondence with each of the original data in the series of original data, the processing time is the said with respect to the series of original data. The content processing apparatus according to any one of claims 1 to 5, which defines the order in which the processing is performed on each of the original data in the processing. When each of the low-quality data in the series of low-quality data corresponds to each of the original data in the series of original data in a one-to-many manner, the processing time is the said with respect to the series of original data. The content processing device according to any one of claims 1 to 5, which defines a start time and a duration in which the processing is performed on each of the original data. The content processing device according to any one of claims 1 to 7.
A content processing system including the storage device. Of a series of original data representing a certain content stored in a storage device, a series of opening data that is a duplicate of the beginning portion in the processing time in which the processing is performed in the processing for the series of original data, and a series of opening data.
A series of low-quality data that is a duplicate of the series of original data, which is a portion of the series of original data that follows the series of opening data with respect to the processing time, and whose amount of data is reduced with a decrease in quality. Is remembered,
A duplicate storage unit in which the access time for the series of opening data and the series of low-quality data stored is shorter than the access time for the series of original data stored in the storage device.
Control to read the series of tail data from the storage device in order from the front with respect to the processing time, and to perform the processing on the read tail data according to the processing time, and the series from the replication storage unit. At least one of the opening data or the series of low-quality data is read out in order from the front with respect to the processing time, and at least one of the read opening data or the series of low-quality data is subjected to the processing according to the processing time. It is a content processing method in a content processing device provided with a control unit for performing control and performing control.
By the control unit
(I) When the processing for the series of original data is requested,
(I) Requesting the storage device to read the series of tail data, and at the same time.
(Ii) The process for the series of opening data and the series of low-quality data stored by the duplicate storage unit is started.
(II) When it becomes possible to perform the processing on a certain tail data of the series of tail data read in the reading of the series of tail data.
(I) The processing for the series of opening data or the series of low-quality data that was performing the processing is stopped, and the processing is stopped.
(Ii) Of the series of end data, the processing is performed on each end data that follows the certain end data with respect to the processing time.
Content processing method in the content processing device. Of a series of original data representing a certain content stored in a storage device, a series of opening data that is a duplicate of the beginning portion in the processing time in which the processing is performed in the processing for the series of original data, and a series of opening data.
A series of low-quality data that is a duplicate of the series of original data, which is a portion of the series of original data that follows the series of opening data with respect to the processing time, and whose amount of data is reduced with a decrease in quality. Is remembered,
A duplicate storage unit in which the access time for the series of opening data and the series of low-quality data stored is shorter than the access time for the series of original data stored in the storage device.
Control to read the series of tail data from the storage device in order from the front with respect to the processing time, and to perform the processing on the read tail data according to the processing time, and the series from the replication storage unit. At least one of the opening data or the series of low-quality data is read out in order from the front with respect to the processing time, and at least one of the read opening data or the series of low-quality data is subjected to the processing according to the processing time. A computer equipped with a content processing device equipped with a control unit for performing control and performing control,
(I) When the processing for the series of original data is requested,
(I) Requesting the storage device to read the series of tail data, and at the same time.
(Ii) A procedure for initiating the processing of the series of opening data and the series of low-quality data stored by the duplication storage unit, and
(II) When it becomes possible to perform the processing on a certain tail data of the series of tail data read in the reading of the series of tail data.
(I) The processing for the series of opening data or the series of low-quality data that was performing the processing is stopped, and the processing is stopped.
(Ii) A content processing program for executing the procedure of performing the processing on each of the ending data that follows the certain ending data with respect to the processing time in the series of ending data.

Images