WO2004112392A1 - 記録装置、情報記録媒体および記録方法 - Google Patents
記録装置、情報記録媒体および記録方法 Download PDFInfo
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- WO2004112392A1 WO2004112392A1 PCT/JP2004/008420 JP2004008420W WO2004112392A1 WO 2004112392 A1 WO2004112392 A1 WO 2004112392A1 JP 2004008420 W JP2004008420 W JP 2004008420W WO 2004112392 A1 WO2004112392 A1 WO 2004112392A1
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
- H04N9/8042—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
- G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
- G11B27/036—Insert-editing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
- G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/84—Television signal recording using optical recording
- H04N5/85—Television signal recording using optical recording on discs or drums
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
- H04N9/806—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components with processing of the sound signal
- H04N9/8063—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components with processing of the sound signal using time division multiplex of the PCM audio and PCM video signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
- H04N9/8205—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
- H04N9/8205—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal
- H04N9/8227—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal the additional signal being at least another television signal
Definitions
- the present invention relates to a recording device and a recording method for recording video data and audio data on an information recording medium, and an information recording medium on which video data and audio data are recorded.
- Patent Document 1 Japanese Patent Application Laid-Open No. 11-888827
- video data and audio data other than video data and audio data can be edited and reproduced at a high speed. It is desirable that the data be recorded on the information recording medium in association with the data.
- the present invention relates to a recording device, a recording method, and a recording method for recording video data, audio data, and other data (auxiliary data, metadata, and the like) in association with each other so that editing and reproduction operations can be performed at high speed. And an information recording medium on which the associated data is recorded. Disclosure of the invention
- the recording apparatus of the present invention receives a video data including a plurality of video unit data showing video and audio data related to the video data, and transmits a plurality of video unit data to each of the plurality of video unit data.
- a file generation unit that generates a video data file to which video-specific data for identification is added, and generates an audio data file to which audio-specific data for identifying audio and video is added to the audio and video; It receives a video data file and an audio data file, divides the video data file into a plurality of video data elements, and divides the audio data file into a plurality of audio data files respectively associated with a plurality of video data elements.
- a dividing unit wherein an i-th (i is an integer) video data element of the plurality of video data elements includes a predetermined number of video unit data of the plurality of video unit data; And an i-th audio data element related to an i-th video data element among a plurality of audio data elements and an i-th video data element are included in a predetermined recording unit.
- An arrangement section for arranging the i-th video data element and the i-th audio data element so as to be recorded, and the information of the arranged i-th video data element and the i-th audio data element.
- a recording unit for recording on a recording medium whereby the object is achieved.
- the I-th video unit data for identifying the I-th video unit data of the video-specific data is attached to the I-th video unit data.
- Filling data and filling data specific data for identifying filling data are added, and the data size of I-th video unit data, I-th video-specific data, filling data, and filling data-specific data is added. May be equal to an integral multiple of the size of a sector unit of the information recording medium.
- the information recording medium is provided with a header area, and the array section outputs the audio-specific data to the recording section so that the audio-specific data is recorded in the header area. It may be.
- the file generation unit further receives a metadata file associated with the video data and the audio data, and further generates a metadata file in which a metadata file is added to the metadata file to identify the metadata.
- the dividing unit divides the metadata file into a plurality of metadata elements associated with each of the plurality of video data elements, and the arranging unit divides the metadata file into the ith video data element among the plurality of metadata elements. May be arranged before the i-th video data element in a predetermined recording unit.
- the file generation unit further receives the auxiliary data including the compressed video data compressed at a higher compression ratio than the video data compression ratio, and adds auxiliary data specific data for identifying the auxiliary data to the auxiliary data.
- the auxiliary data file is further generated, and the dividing unit divides the auxiliary data file into a plurality of auxiliary data elements respectively associated with the plurality of video data elements, and the arranging unit divides i of the plurality of auxiliary data elements.
- the i-th auxiliary data element related to the i-th video data element and the i-th metadata element may be arranged adjacent to each other in a predetermined recording unit.
- the i-th auxiliary data element may further include a compressed audio data compressed at a compression rate higher than the compression rate of the video unit data.
- the arrangement unit may arrange the i-th auxiliary data element before the i-th video data element.
- the arranging section may arrange the auxiliary data element before the metadata element, the audio data element, and the video data element.
- the file generation unit further receives auxiliary data including compressed video data compressed at a higher compression ratio than the video data compression ratio, and adds auxiliary data unique data to identify the auxiliary data to the auxiliary data. Generate more files, The dividing unit divides the auxiliary data file into a plurality of auxiliary data elements respectively associated with the plurality of video data elements, and an i-th auxiliary data element among the plurality of auxiliary data elements is an i-th video data element.
- the splitter identifies a position corresponding to the beginning of the i-th auxiliary data element in the video data file, and the splitter is located before the identified position and is identified
- the video data file may be divided so that a position separated from the position by an integer multiple of the ECC block unit of the information recording medium is the beginning of the i-th video data element.
- the file generation unit further receives the video data and the metadata related to the audio data, and further generates a metadata file in which metadata specific data for identifying the metadata is added to the metadata.
- the position separated by an integer multiple of the ECC block unit of the information recording medium is the i-th meta In such a way that the beginning of the chromatography data elements, may be divided into the main Yude Isseki file.
- the dividing unit specifies a position corresponding to the head of the i-th video data element in the audio data file, and the dividing unit is a position after the specified position and records information from the specified position.
- the audio data file may be divided so that the position separated by the data size that is an integral multiple of the ECC block unit of the medium is the head of the i-th data element.
- the arranging section when a defective area is present in the information recording medium, relocation data for forming a relocation area used for relocating predetermined data according to the defective area.
- the i-th video data element and the i-th video element may be arranged so that the evening is recorded in a predetermined recording unit.
- the array unit includes, in a predetermined recording unit, a shift data for forming a shift area used to shift a predetermined data according to the defect area when the information recording medium has a defective area. It may be arranged together with the i-th video data element and the i-th audio data element so as to be recorded.
- An information recording medium includes: a video unit data indicating a video; video-specific data for identifying video unit data; filling data provided to the video unit data; and a filling data for identifying filling data.
- An information recording medium containing data specific to an overnight, and a data size obtained by adding the video unit data, the video specific data, the filling data, and the filling data specific data is an integral multiple of a sector unit of the information recording medium. And the above-mentioned object is achieved.
- An information recording medium of the present invention is an information recording medium provided with a header area, and includes: audio data and audio-specific data for identifying audio data; It is recorded in the header area, thereby achieving the above object.
- An information recording medium includes: a video data element including video unit data indicating a video; a metadata element associated with the video data element; and an audio data element associated with the video data element.
- the data element and the audio data element are arranged before the video data element in a predetermined recording unit, thereby achieving the above object.
- the information recording medium is an auxiliary data element including compressed video data compressed at a higher compression ratio than the video unit data, and further includes an auxiliary data element associated with the video data element.
- the evening data element and the auxiliary data element may be arranged adjacently in a predetermined recording unit. No.
- the auxiliary data element may further include compressed audio data compressed at a higher compression ratio than the compression ratio of the video unit data.
- the auxiliary data element may be arranged before the video data overnight element.
- the auxiliary data element may be arranged before the metadata element, the audio data element, and the video data element.
- An information recording medium comprises: a plurality of video data elements obtained by dividing a video data file including a plurality of video unit data representing video; and a compression unit which is compressed at a compression ratio higher than a compression ratio of the plurality of video unit data.
- a plurality of auxiliary data elements each including video data, a plurality of auxiliary data elements associated with each of the plurality of video data elements, and i (i Is an integer).
- the first video data element and the i-th auxiliary data element of the plurality of auxiliary data elements are associated with each other, and the i-th auxiliary data element in the video data file is associated with the first data element.
- a position before the corresponding predetermined position, and an integer multiple of the ECC block unit of the information recording medium from the predetermined position. Isseki size of away is the head of the i-th video data element, the object can be achieved.
- the information recording medium of the present invention includes: a plurality of video data elements including video data; and a plurality of metadata elements obtained by dividing a metadata file including metadata related to video data.
- the i-th (i is an integer) video data element and the i-th metadata element of the plurality of metadata elements are related to each other, and the head of the i-th video data element in the metadata file is associated with the i-th video data element.
- the position after the predetermined position corresponding to the data position and separated from the predetermined position by an integer multiple of the ECC block unit of the information recording medium is the beginning of the i-th metadata element.
- An information recording medium includes a plurality of video data elements including video data, and a plurality of audio data elements obtained by dividing an audio data file including audio data related to the video data.
- the i-th (i is an integer) video data element of the data element is associated with the i-th audio element of the plurality of audio data elements
- the i-th audio data element of the audio data file is associated with the i-th audio element.
- the position after the predetermined position corresponding to the start of the i-th video data overnight element and separated from the predetermined position by an integer multiple of the ECC block unit of the information recording medium is the i-th video data. This is the beginning of the audio data element, thereby achieving the above object.
- the information recording medium of the present invention is an information recording medium including a video data element including a plurality of video unit data indicating video and an audio data element related to the video data element.
- a relocation area used to relocate predetermined data according to the defective area is provided.
- An information recording medium is an information recording medium including a video data element including a plurality of video unit data indicating a video, and an audio element associated with the video data element.
- a shift area is used to shift predetermined data according to the defective area.
- the predetermined data may be a video data element.
- the recording method of the present invention receives a video data including a plurality of video unit data showing video and audio data related to the video data, and identifies a plurality of video unit data from each of the plurality of video unit data.
- a video data file with video-specific data for Generating an audio data file in which audio data is provided with audio-specific data for identifying audio data receiving the video data file and the audio data file; converting the video data file into a plurality of video data elements; Dividing the audio data file into a plurality of audio data elements relating to a plurality of video data elements, respectively, wherein the i-th (i is an integer) th video data element of the plurality of video data elements is divided.
- the video data element includes a predetermined number of video unit data of the plurality of video data elements, and a ith audio data associated with the i-th video data element of the plurality of audio data elements. Evening element and i-th Arranging the i-th video data element and the i-th audio data element so that the audio data element is recorded in a predetermined recording unit; Recording the element and the i-th audio data element on the information recording medium, whereby the object is achieved.
- the I-th video unit data for identifying the I-th video unit data in the video-specific data is added to the I-th video unit data.
- the data size obtained by adding the data may be equal to the size of an integral multiple of the sector unit of the information recording medium.
- the information recording medium is provided with a header area, and the arranging step may include a step of outputting audio-specific data so that the audio-specific data is recorded in the header area.
- the step of generating the file further includes receiving metadata associated with the video and audio data, and identifying the metadata with a method for identifying the metadata.
- the step of dividing includes the step of dividing the metadata file into a plurality of metadata elements associated with a plurality of video data elements, Arranging the i-th metadata element and the i-th audio data element associated with the i-th video data element of the plurality of metadata elements in a predetermined recording unit; It may include a step of arranging before the data element.
- the step of generating a file further includes receiving auxiliary data including compressed video data compressed at a compression ratio higher than the video data compression ratio, and generating auxiliary data specific data for identifying the auxiliary data in the auxiliary data.
- Generating the assigned ancillary data file the dividing includes splitting the ancillary data file into a plurality of ancillary data elements associated with each of the plurality of video data elements, and the arranging includes: A step of arranging the i-th auxiliary data element and the i-th metadata element related to the i-th video data element of the auxiliary data element element adjacently in a predetermined recording unit. Good.
- the i-th auxiliary data element may further include a compressed audio data compressed at a compression rate higher than the compression rate of the video unit data.
- the arranging step may include arranging the i-th auxiliary data element before the i-th video data element.
- the step of arranging may include the step of arranging the auxiliary data element before the metadata element, the audio element, and the video data element.
- the step of generating a file further includes receiving auxiliary data including compressed video data compressed at a compression ratio higher than the video data compression ratio, and adding auxiliary data specific to the auxiliary data to identify the auxiliary data.
- the method further includes the step of generating an auxiliary data file to which data has been added, and the step of dividing includes: —Dividing into a plurality of auxiliary data elements associated with each of the evening elements, wherein the i-th auxiliary data element of the plurality of auxiliary data elements is associated with the i-th video data element; The step of identifying the position corresponding to the beginning of the i-th auxiliary data element in the video data file, and the step of dividing is performed before the identified position and from the identified position.
- the method may include a step of dividing the video data file so that a position separated by an integer multiple of the ECC block unit of the information recording medium is the head of the i-th video data element.
- the step of generating the file further includes receiving metadata associated with the video data and the audio data, and generating a file for identifying the metadata in the metadata file.
- the method further includes generating and dividing the metadata file into a plurality of metadata elements associated with each of the plurality of video data elements, wherein the i-th metadata of the plurality of metadata elements is included.
- the data element is associated with an ith video data element
- the step of splitting includes the step of identifying a position in the metadata file corresponding to the beginning of the ith video data element, and the step of splitting Is the position after the specified position and the ECC of the information recording medium from the specified position.
- the method may include a step of dividing the metadata file such that a position separated by an integer multiple of the block unit and the data size becomes the head of the ith metadata element.
- the step of dividing includes a step of specifying a position corresponding to the head of the i-th video data element in the audio data file, and the step of dividing is a position after the specified position,
- the step of dividing the audio / video file so that the position separated from the specified position by an integer multiple of the ECC block unit of the information recording medium is the head of the i-th audio / video element.
- the arranging step when a defective area is present in the information recording medium, the rearranged data for forming a rearranged area used for rearranging predetermined data according to the defective area is recorded in a predetermined recording unit. May further comprise the step of arranging together with the i-th video data element and the i-th audio data element so as to be recorded by being included in.
- a predetermined shift unit for forming a shift area used to shift predetermined data according to the defective area is included in a predetermined recording unit. It may further comprise the step of arranging with the i-th video data element and the i-th audio data element so as to be recorded.
- the recording apparatus of the present invention includes a first content data including a plurality of content unit data each indicating at least a part of the first content, and a second content data related to the first content data. And generates a first content data file in which a first content-specific data for identifying a plurality of content unit data to each other is assigned to each of the plurality of content unit data. Receiving a first content data file and a second content data file for generating a second content data file to which the second content specific data for identifying the second content data is added; Splits the content data file into multiple primary content data elements, A plurality of second content data associated with each of the plurality of first content data elements by the second content file:!
- the i-th data element is recorded so that the data element and the
- An arrangement section for arranging one content data element and the i-th second content data element, and information on the arranged i-th first content element and the i-th second content data element A recording unit for recording on a recording medium is provided, whereby the above object is achieved.
- the I-th first content-specific data of the first content-specific data is used to identify the I-th (I is an integer) content-unit data of the plurality of content unit data.
- the file generation unit assigns the filling data and the filling data specific data for identifying the filling data to the I-th content unit data.
- the data size obtained by adding the I-th first content-specific data, the filling data, and the filling data-specific data may be equal to an integral multiple of a sector unit of the information recording medium.
- the first content may be one of video and audio.
- the I-th first content-specific data is the first key data for identifying the type of the I-th content unit data and the first length data indicating the length of the I-th content unit data.
- the filling data specific data may include a second key data for identifying the type of the filling data, and a second length data indicating the length of the filling data.
- the first content may be one of video and audio.
- the information recording medium may be provided with a header area, and the arranging unit may output the second content-specific data to the recording unit such that the second content-specific data is recorded in the header area.
- the second content may be one of video and audio.
- the second content-specific data includes key data for identifying the type of the second content data and length data indicating the length of the second content data. Good.
- the second content may be one of video and audio.
- the information recording medium of the present invention comprises: a content unit data indicating at least a part of the content; content-specific data for identifying the content unit data; and filling data added to the content unit data. If the information recording medium contains filling data specific data for identifying filling data, the data size of the content unit data, the filling data, the filling data, and the filling data unique data is However, the size is equal to an integer multiple of the sector unit of the information recording medium, thereby achieving the above object.
- the content may be one of video and audio.
- the content specific data includes first key data for identifying the type of the content unit and first length data indicating the length of the content unit
- the filling data specific data includes: It may include second key data for identifying the type of the filling data, and second length data indicating the length of the filling data.
- the content may be one of video and audio.
- the information recording medium of the present invention is an information recording medium provided with a header area, and includes a content data indicating at least a part of the content and a content-specific data for identifying the data. And the content-specific data is recorded in the header area, thereby achieving the above object.
- the content may be one of video and audio.
- the content-specific data may include key data for identifying the type of the content data, and length data indicating the length of the content data.
- the content may be one of video and audio.
- the recording method of the present invention receives first content data including a plurality of content unit data respectively indicating at least a part of the first content, and second content data related to the first content data, Content Unit Day
- first content data including a plurality of content unit data respectively indicating at least a part of the first content
- second content data related to the first content data
- Content Unit Day In addition to generating a first content data file to which first content specific data for identifying each of the plurality of content data files is distinguished from each other, a second content data file is included in the second content data.
- the i-th (i is an integer) first content data of the data elements The element includes a fixed number of content unit data of the plurality of content data elements; and an i-th element associated with the i-th first content data element of the plurality of second content data elements.
- the i-th first content element and the i-th second content data so that the second content data element and the i-th first content data element are recorded in a predetermined recording unit. And a step of recording the arranged i-th first content data element and the i-th second content data element on an information recording medium, whereby the object is achieved. Achieved.
- the I-th first content-specific data of the first content-specific data for identifying the I-th (I is an integer) content-unit data of the plurality of content unit data is an I-th content-unit.
- the step of generating a file, which is provided for each unit includes the step of adding a filling data and filling data specific data for identifying the filling data to the Ith content unit data, Even if the data size obtained by adding the content unit data and the I-th first content-specific data and the filling data and the filling data-specific data is equal to an integral multiple of the unit of section of the information recording medium, Good.
- the first content may be one of video and audio.
- the I-th first content-specific data includes first key data for identifying the type of the I-th content unit data and first-length data indicating the length of the I-th content unit data.
- the filling data specific data may include second key data for identifying a type of the filling data, and a second length data indicating the length of the filling data.
- the first content may be one of video and audio.
- the information recording medium is provided with a header area, and the arranging step may include a step of outputting the second content-specific data so that the second content-specific data is recorded in the header area.
- the second content may be one of video and audio.
- the second content-specific data may include a key for identifying the type of the second content data and a length key indicating the length of the second content data.
- the second content may be one of video and audio.
- the data size obtained by adding the video unit data, the video specific data, the filling data, and the filling data specific data is equal to an integral multiple of the sector unit of the information recording medium.
- the metadata element and the audio data element are arranged before the video data element in the predetermined recording unit. Further, the metadata element and the auxiliary data element are arranged adjacently within a predetermined recording unit. The auxiliary data element is arranged before the metadata element, audio data element and video data element. According to these data arrangements of the present invention, including high-speed search High-speed reproduction operation can be performed.
- FIG. 1 is a diagram showing a recording apparatus 100 according to an embodiment of the present invention.
- FIG. 2A is a diagram showing the video data file 111.
- FIG. 2B is a diagram showing the audio data file 112.
- FIG. 2C is a diagram showing the auxiliary AV data file 113.
- FIG. 2D is a diagram showing the real-time metadata file 114.
- FIG. 3A is a diagram showing a plurality of video elements VEi VEm.
- FIG. 3B is a diagram showing a plurality of audio elements AEi AEm.
- FIG. 3C is a diagram showing a plurality of auxiliary AV data overnight elements SEi SEm.
- Figure 3D is a diagram illustrating a plurality of real time metadata element RE 1 ⁇ RE m.
- FIG. 4 is a diagram showing the array data 131 generated by the array unit 130.
- FIG. 5A shows an information recording medium 1 on which array data 130 of annual ring format is recorded.
- FIG. 1 A first figure.
- FIG. 5B is a diagram showing the rearrangement area R A and the shift area S A.
- FIG. 5C is a diagram showing the extended UM ID 241.
- FIG. 6A is a diagram showing a j-th body annual ring 221
- FIG. 6B is a diagram showing a body annual ring 227 for comparison.
- FIG. 7 is a diagram showing a pickup access procedure for reading an auxiliary AV data element SEj and a real-time meta data element REj from a plurality of body rings.
- FIG. 8 is a diagram for explaining a procedure for starting reproduction of data from a high-speed search.
- Figure 9 illustrates which body annual rings include the data near the boundary when the data file is divided into elements at the ECC block boundary before and after the mark.
- FIG. 10 is a diagram for explaining an access operation to the j-th body annual ring 222 and the j + 1-th body annual ring 222.
- Fig. 11 is a diagram for explaining which body annual rings include data near the boundary when the data file is divided into elements at the ECC block boundaries before and after the mark.
- FIG. 7 is a diagram illustrating an access operation to a body annual ring 2 2 1 and a j + 1-th body annual ring 2 2 2.
- FIG. 1 shows a recording apparatus 100 according to an embodiment of the present invention.
- the recording device 100 receives the video data 101 and the audio data 102, and generates a video data file 111 and an audio data file 112.
- Dividing section 1 2 0 that divides data file 111 and audio data file 112 into a plurality of video data elements VE ⁇ m (m is an integer) and a plurality of audio / video elements AE ⁇ m.
- an array section 130 that generates an array data 131 in which video data elements and audio data elements that are related to each other are arranged so as to be recorded in a predetermined recording unit, and array data.
- the information recording medium 150 is, for example, an optical disk medium.
- the file generation unit 110 receives the video data 101, the audio data 102, the auxiliary AV data 103, and the real-time metadata 104.
- Video data 101 indicates one scene (video content) of an image shot by the camera.
- One scene of an image refers to, for example, a series of images captured during a period from when a recording button of the camera is pressed to when the recording stop button is pressed.
- the data 101 includes a plurality of video unit data VU VUn (n is an integer).
- the audio data 102 indicates sound (audio content) related to one scene of the video.
- the auxiliary AV data 103 is a set of video data and audio data compressed at a higher compression ratio than the compression ratio of the video data 101.
- the real-time metadata 104 indicates additional information (for example, time code, UMI D) of the video data 101 and the audio data 102. UM ID will be described later.
- the video data file 111 will be described.
- the file generation unit 110 receives the video data 101 including a plurality of video unit data VUi VUn, and generates a video data file 111.
- FIG. 2A shows the video data file 111.
- the format is, for example, D10.
- the video data file 111 includes an MXF file header 161, an MXF file 162, and an MXF file file 163.
- the data size of each of the MXF file header 161, the MXF file pod 162, and the MXF file header 163 is, for example, an integer multiple of 65536 bytes.
- the MXF file header 161 and MXF file header 163 include the unique data of the MXF file body 162.
- the MX F-file body 162 will be described. Video Unite One Night Vl ⁇ ⁇ ! The value of the picture item.
- the file generator 110 (FIG. 1) A video-specific data keys de Isseki Kvi KVN and length data to impart E ⁇ V n (KLV co one loading frame rats Bing format video E Tsu sense give al Is). Key data KV 1 ⁇ KV n is data for identifying the type of the video unit data VUi Vun (Picture item). Overnight Length
- ⁇ LV n is multiple video unit data (Picture item) Indicates the length of each item.
- the file generation unit 110 stores a plurality of video units
- filer data (filling data) FVi FVn is added.
- Fuilade Ishii shows a filler item.
- the file generation unit 110 adds the key data KFi KFn and the length data LFi LFn, which are the unique data of the Filaday, to each of the plurality of filer data F Vi FVn.
- the key data KF is data for identifying a plurality of filers FVi FVn (filer items) from each other.
- Length data LF LFn shows multiple Philadelphia evenings (Fila item) Indicates the length of each item.
- Video unit data overnight VUi (1 is an integer satisfying 1 ⁇ 1 ⁇ 11), key data overnight ⁇ ⁇ ;, length data LVi, filer data FVi, key data KF; and length data LFi
- the data size is equal to the size S ein of the information recording medium 150 (FIG. 1), which is an integral multiple of a sector unit (for example, an integral multiple of 2048 bits).
- the filer data FVi is filling data provided to the video unit data VU for adjusting the total data size to be equal to the integer multiple of the sector unit. If the format of the video unit data VUi is, for example, DV-Picture, a VAUX data item and its unique data are added to the video unit data VU !.
- the audio data file 112 will be described.
- the file generator 110 receives the audio data 102 and generates an audio data file 112.
- FIG. 2B shows the audio data file 112.
- the format of the audio file 112 shown in FIG. 2B is called MXF.
- the format of the audio data 102 is, for example, LP CM.
- the audio data file 112 includes an MXF file header 171, an MXF file body 172, and an MXF file footer 173.
- the data size of each of the MXF file header 171, the MXF file body 172, and the MXF file header 173 is, for example, an integral multiple of 65536 bytes.
- the MXF file header 171 and the MXF file file 173 include unique data of the MXF file 172.
- the file generation unit 110 adds the key data KA and the length data LA, which are the audio-specific data, to the audio data 102 (the clipping-type audio in which the entire clip is LV-coded). Essence is obtained).
- the key data KA is data for identifying the audio data 102 (sound item).
- Length data LA indicates the length of audio data 102 (sound item).
- These key data KA and length data LA are included in the MXF file header and 171 instead of the MXF file body 172.
- the file generation section 110 adds filer data (filling data) FA to the audio data 102.
- the file generation unit 110 adds the key data overnight KFA and the length data LFA, which are the unique data of the file data overnight, to the file data FA.
- KFA is the data for identifying the filer data FA.
- the length data LF A indicates the length of the Firaday evening FA.
- the total data size of the audio data 102, the field data FA, the key data KFA, and the render data LFA is, for example, a size SE in which is an integral multiple of 65536 pits.
- Philadelphia FA is a filling data that is given to audio data 102 to adjust the total data size to be an integral multiple of 65536 bytes.
- the audio data file 112 shown in FIG. 2B is an audio data file for one channel
- the file generation unit 110 receives the audio data 102 for the number of channels and outputs the audio data file 112 for the number of channels.
- auxiliary AV data file 103 including a plurality of content packages CP i CPm (m is an integer) and generates an auxiliary AV data file 113.
- Figure 2C shows the auxiliary AV data file 113.
- the format of the auxiliary AV file 113 shown in Figure 2C is called MXF.
- the auxiliary AV data file 113 includes an MXF file header 181, an MXF file pod 182, and an MXF file file 183.
- the data size of each of the MXF file— 'header 181, MXF file body 182, and MXF file header 183 is, for example, an integer multiple of 65536 bytes.
- the MX F file header 181 and the MX F file file 183 include the specific data of the MX F file pod 182.
- the MX F file body 182 will be described.
- the file generation unit 110 attaches key data and length data, which are unique data, to an item included in each of the plurality of content packages CP i CPm.
- the auxiliary AV de Isseki 103 comprises, generates a system ⁇ Itemu SI.
- the picture essence included in the auxiliary AV The key data KP e and the length data LP e are added to the source P e 1A to generate a picture emission.
- key data KS e and length data LS e are added to the sound essence Se 1A included in the auxiliary AV data 103 to generate a sound essence S ei.
- system item SI i ⁇ SI m in specific data of a plurality of contents package CP i CPm is there.
- Picture essence P e m is Ru Ah, for example, MP EG- 4 elementary stream.
- Contents package CP m includes a sound essence S e m plurality of channels.
- System Item S 1 "1 and the picture essence P e m and Day evening The total combined size is, for example, 6 X 65536 bytes.
- Sound Essence S 6" size of 1 is, for example, 32768 Paito.
- Each element included in the MXF file body 182 is divided based on the base annual ring period of the annual ring format. Each element has data for an integral multiple of the reference ring period.
- the annual ring format will be described later.
- the reference ring period is 2.0 seconds.
- Each of the picture essences P e ⁇ ⁇ e m includes approximately 2 seconds (eg, 2.02 seconds or 2.0 seconds) of highly compressed video data according to the reference annual ring period.
- FIG. 10 shows a real-time metadata containing multiple frames 0 to d (d is an integer).
- Receive 104 and generate a real-time metadata file 114.
- Figure 2D shows the real-time metadata file 114.
- the format of the real-time metadata file 114 shown in FIG. 2D is called BIM (Binary format for Multimedia dia de scription on stream). Details of B i M are described in the standard specification of IS OZ IEC FD IS 15938-1 called MP EG7, and detailed description of B i M is omitted in this specification for simplification of description.
- the real-time metadata file 114 includes a BIM file header 191 and a BIM file pod 192 (there is no BIM file file).
- the BIM file header 191 includes unique data (such as the number of frames) of the BIM file body 192.
- the BiM file pod 192 includes a plurality of frames 0 to d. Similar to the MX F file body 182 (Fig. 2C), each element included in the BiM file body 192 is divided based on the base annual period in the annual ring format.
- the format of a plurality of frames 0 to d is called FUU (Fragment t Up d a t e Unit).
- the data size of each of the frames 0 to d is, for example, 6144 bytes.
- Each of the frames 0 to d includes a metadata item (LTG, UMI D, KLV packet, etc.).
- each of the plurality of frames 0 to d may include an ARIB message and an extended real-time message (Extended Real-Time Metadata).
- the division unit 120 receives the video data file 111, the audio data file 112, the auxiliary AV data file 113, and the real-time metadata file 114 output from the file generation unit 110.
- the division unit 120 divides the header, body, and footage of each of the video data file 111, the audio data file 112, and the auxiliary AV data file 113 from each other.
- the division unit 120 divides the header and the body of the real-time metadata file 114.
- the dividing unit 120 divides the MXF file body 162 shown in FIG. 2A into a plurality of video data elements VEi VEm shown in FIG. 3A (p and q shown in FIG. 3A are integers satisfying p ⁇ q ⁇ n ).
- the MXF file body 162 is divided so that, for example, each video data element includes video unit data in such an amount that a playback image of 2 seconds can be obtained.
- the dividing unit 120 divides the MXF file body 172 shown in FIG. 2B into the audio data 102, the key data KFA, the length data LFA, and the field data FA.
- the dividing unit 120 divides the audio data 102 into a plurality of audio data elements AEi AEm shown in FIG. 3B.
- the audio overnight element is an audio data of the audio data 102 that is synchronized with the video unit data VUi VUp included in the video data element (that is, the audio data to be reproduced simultaneously with the video audio element).
- Dividing section 120 divides MXF file body 172 for the number of channels.
- Dividing section 120 divides MXF file body 182 shown in FIG. 2C into a plurality of auxiliary AV data elements S E to S EJ shown in FIG. 3C.
- the auxiliary AV data overnight element is the video unit data contained in the video data element £ 1. High-compression video data and high-compression audio data related to it.
- the dividing unit 120 divides the BiM file body 192 shown in FIG. 2D into a plurality of real-time metadata elements REi REm shown in FIG. 3D (e shown in FIG. 3D is an integer satisfying c ⁇ e ⁇ d).
- real-time metadata element shows.
- the array unit 130 (Fig. 1) is used for the video data output from the division unit 120.
- Auxiliary AV data elements S Ei to SE m real-time metadata element RE Receives the header and header of the video data file 111, audio data file 112, and auxiliary AV data file 113, and the header of the real-time metadata file 114, and includes related elements in the same body annual ring. Arrange as recorded.
- FIG. 4 shows the sequence data 131 generated by the sequence unit 130.
- the array data 131 is generated in a format called “annulus format (Annulusformat;)”.
- “Annulus format” refers to a format obtained by dividing each of a plurality of data files into a plurality of elements, and arranging these elements as a unit of “annulus”.
- “Ring” refers to one unit of the ring format.
- the array data 131 includes m body annual rings (the first body annual ring 201 to the m-th body annual ring 202), the Hou evening ring 203, and the header annual ring 204.
- the first body annual ring 201 is composed of an auxiliary AV data element SE, a real-time data element RE, a relocation data RA for forming a relocation area, an audio data element AE i for the number of channels, and a video data element V. E i and shift data SA i for forming the shift area.
- the m body annulus 202, the auxiliary AV data element SE m, real-time main knotweed Isseki element RE m, rearrangement regions rearranged data RA m for forming, O one plurality of channels di O data element AE m, A video data element VE m and shift data SA m for forming a shift area are included in this order.
- Audio de Isseki element AE m plurality of channels are arranged in order of channel numbers.
- the foot ring 203 is composed of auxiliary AV data element foot data SE f , rearrangement data RA f for forming a rearrangement area, audio data element footer data for the number of channels AU, video data element foot data VE f Shifutode Isseki for forming and shifting region including the SA f in sequence of this order.
- the supplementary AV data element element data SE f is the data contained in the MXF file element 183 (Fig. 2C).
- Audio data element footer data AU f is data including MXF file hydrofluoric evening 173 (FIG. 2B).
- the video data element data VE f is data included in the MXF file footer 163 (FIG. 2A).
- Auxiliary AV de Isseki elementary preparative header data SE h is, MX F file header 181 (FIG. 2C) is data including the.
- Real time metadata element header de Isseki RE h is data including MXF file Iruhedda 191 (FIG. 2D) is.
- Audio data element header data AE h is a Isseki de containing MXF file header 171 (FIG. 2B) (the audio data element header data AE h is an audio-specific data Evening key data KA and Length de night LA are included).
- Bideode Isseki Jer instrument header data VE h is Isseki de MXF file header 161 ( Figure 2A) contains.
- Each annual ring (the first body annual ring 201 to the m-th body annual ring 202, the footer annual ring 203, and the header annual ring 204) may include reserved area data for forming a reserved area for recording additional data in the future.
- Each annual ring (first body annual ring 201 to m-th body annual ring 202, footer annual ring 203, header annual ring 204) is recorded starting from the first sector of the ECC block. Each element is recorded so as to start at the ECC block boundary and end at the ECC block boundary. In Figure 4, the boundaries of the ECC blocks are indicated by triangles.
- the recording unit 140 (FIG. 1) includes a recording head and a recording head control unit that controls the recording head.
- the recording unit 140 receives the array data 131 output from the array unit 130, irradiates the information recording medium 150 with a laser beam 141 corresponding to the content of the array data 131, and records the array data 131 on the information recording medium 150. I do. If the information recording medium 150 is a magnetic recording medium, the recording unit 140 stores the array data 13
- a magnetic field corresponding to the content of 1 is applied to the information recording medium 150.
- FIG. 5A shows an information recording medium 1 in which array data 130 of annual ring format is recorded.
- the information recording medium 150 has a body annual ring area 211 on which the first to m-th body annual rings 201 to 202 are recorded, a full annual ring area 213 on which the full annual ring 203 is recorded, and a header on which the header annual ring 204 is recorded.
- An annual ring area 214 is formed.
- SA V de Isseki element SE m, real time metadata element RE m, defective areas in a region where the audio de Isseki elementary preparative AE m was recorded This is the area for recording data corresponding to the defective area when there is (an area where data cannot be written correctly when overwriting data).
- the overnight movement is performed in units of data size, for example, an integral multiple of the ECC unit (or an integral multiple of the sector unit).
- the size of the relocation area RA is, for example, 131072 bytes. As shown in FIG.
- the auxiliary AV de Isseki Ereme cement SE m and audio de Isseki element AE m defective area in the region into which they are recorded (X mark) is detected, the auxiliary AV The data to be recorded in the defect area of each of the data element SE m and the audio / audio element AE m is recorded in the relocation area RA.
- the shift area SA corresponding to the shift data SA m is used when the video data element VE m is recorded in the area where a defective area (an area where ⁇ ⁇ —even cannot be written correctly when data is overwritten) exists. an area for recording by shifting the data of the second half portion of the element VE m.
- the data is shifted in units of data size, for example, an integer multiple of the ECC unit (or an integer multiple of the sector unit).
- the size of the shift area SA is, for example, 6 5 5 3 6 integral multiple of pi Bok (e.g. 5% of the data size of the video data element VE m). As shown in FIG.
- the video data element when VE m defect in a region is recorded area (X mark) is detected, the partial data of the video data element VE m were be recorded on the defective area Is shifted to the normal recording area adjacent to the end of the defective area, and accordingly, another partial data of the video element VE m that was to be recorded in the recording area after the defective area is Is shifted to and recorded.
- the data in the latter half of the video data element VE m is shifted to the shift area SA by the size of the defective area.
- a new recording area VE new for recording the video data element VE m is recorded while being shifted.
- the detection of the defective area, the rearrangement of the data, and the shift are performed, for example, when the recording apparatus 100 includes a detecting unit that detects a defective area where data cannot be correctly recorded, and when the detecting unit detects the defective area, 130 adjusts the array pattern of the array data 130 (this is performed.
- the real-time metadata element RE m (FIG. 5A) includes a UM ID (Unique Material Identifier) as additional information.
- the UM ID is an identifier for globally uniquely identifying the AV element and the unit included in the AV element.
- the UMID has a byte sequence of, for example, 32 bytes or 64 bytes.
- a UM ID having a 32-byte byte sequence is called a basic UM ID (Basic UM ID).
- Basic UM ID is used to identify AV elements.
- the AV element is a compressed or uncompressed video data element, a compressed or uncompressed audio data element, a multi-channel data element or a single-channel data element.
- FIG. Isseki audio de related to the video data element VE m and video data element VE m shown in a is a Ereme cement AE m.
- a UM ID having a 64-byte pite string is called an extended UM ID (Et end UMID).
- the extended UMID is used to identify the unit data included in the AV element in addition to the identification of the AV element.
- the unit data is data indicating a video in a predetermined data unit, such as video clip data or one frame data included in an edited video data element in a completely packaged state.
- the basic UMID contains a globally unique identification value for identifying the AV element.
- This identification value is, for example, the time when the AV element was generated and the AV element.
- This value is a combination of the MAC (Media Access Control) address of the device that generated the comment.
- the basic UMID is used to identify AV elements, but may also be used to identify other data elements, such as auxiliary data elements (data essence, subtitle data, carousel data, etc.). good. Also, an identification value may be assigned to the basic UMID so that the video data element and the audio / video element synchronized therewith are identified as one group of elements. Further, an identification value may be assigned to the basic UM ID so as to identify a video clip element composed of one frame data, a video data element in an edited and completely packaged state, and the like. By using the basic UM ID, data of any length can be identified.
- the extended UMID is used to identify the unit data included in the AV "element in addition to the identification of the AV element.
- An example of the format of the extended UM ID is shown in Fig. 5C.
- the UM ID 241 includes the basic UMID 242 and the source pack 243.
- the data size of the extended UM ID 241 is, for example, 64 bytes.
- the data size of each of the basic UM ID 242 and the source pack 243 is, for example, 32 bytes.
- the basic UM ID 242 is included in the extended UMID 241 as an identifier for identifying an AV element.
- the source pack 243 includes time data 244, position data 245, and user data 246 indicating initial generation conditions of unit data included in the AV data element. including.
- the time data 244 indicates the time (year, month, day, and time) when the unit data was first generated.
- the data size of the time data 244 is, for example, 8 bytes. By changing the time indicated by the time-evening 244 every evening, the evening can be identified. For example, if the unit data identified using the extended UMID 241 is frame data, the speed of counting the time recorded as the time data 244 is set to be faster than the frame rate. Thus, the time indicated by the time data 244 may be different for each frame data.
- the position data 245 indicates geographical position information (for example, altitude, latitude, and longitude) of the place where the unit is first generated.
- the data size of the position data 245 is, for example, 12 bytes.
- the position data 245 indicates the altitude, the latitude, and the longitude
- the data size indicating the altitude, the data indicating the latitude, and the data indicating the longitude are, for example, 4 bits each.
- the position data 245 may indicate the position of the photographer who has captured the video, or may indicate the position of the imaging target.
- the GPS data obtained from a GPS (G1 oba1PositioningSystem) receiver may be used as the position data 245.
- the GPS receiver can be externally connected or built into the imaging device.
- the user data 246 indicates the data regarding the user (for example, the photographer) who first generated the unit data.
- User data 246 includes country code 247, organization code 248, and user code 249.
- the data size of the user data 246 is, for example, 12 bytes.
- the data size of each of the country code 247, organization code 248, and user code 249 is, for example, 4 bytes.
- the country code 247 is a character string indicating the home country of the organization to which the user belongs. For example, according to ISO 31661-1, us (United States), jp (Japan), uk (UK), de (Germany), kr (Republic of Korea).
- the organization code 248 is a character string representing the organization to which the user belongs. By combining the country code 247 and the organization code 248, the organization to which the user belongs can be specified in a worldwide manner. By registering the organization code 248 in advance in the SMPTE (Society of Moti on Picture and Te 1 evisi on Engineers) Registrati on Autonomy, the organization code 248 can be duplicated in the same country. To do Can be avoided.
- the user code 249 is a code assigned to the user, and is arbitrarily assigned to the user by the organization to which the user belongs.
- user data 246 may be configured in another format for identifying a freelancer that does not belong to a specific organization.
- Real time metadata element RE m by contains an identifier such as a basic UMID as additional information
- the audio data element AE m associated with the video data element VE m and video data element VE m (Fig. 5 A) Can be uniquely identified globally.
- bidets O de Isseki element VE m and audio data element AE m bidets O de Isseki element VE m and audio data element AE m .
- the real-time metadata element RE m includes an identifier such as the extended UM ID 241 including the source pack 243
- the video data element VE m and the audio data element AE m are added to the video data element.
- Isseki elementary DOO VE m contains video unit data VU n (FIG. 3 a) it is possible to identify the grotesque one Bal unique.
- the real-time metadata element RE m includes an identifier such as the extended UM ID 241, various editing operations are facilitated. For example, during playback of Bideoyuni Ttode Isseki VU n, also so that editing to display a map showing the shooting location on a part of the display screen, may be stored map data around the world in advance in the editing device, the position data Evening data is read by the editing device from the map data indicating the location specified from It can be done easily.
- the total size of the video unit data overnight VU; the key data overnight KVi, the length data LVi, the filer data FVi, the key data KFi, and the length data LFi is Equal to the integral multiple of the information recording medium 150 in sector units.
- the beginning of the frame included in each video unit data VU n is located at the sector boundary.
- the user deletes a part of the video, it can be realized by deleting the image in units of sectors.Therefore, no data movement occurs, and partial deletion and editing can be performed only by changing the file system management information. It can be done at high speed.
- the seek operation at the time of recording can be reduced by writing the annual rings in an area different from the body annual rings, and by arranging each of these header data in the header annual rings 204 intensively, each header data (especially real-time metadata E les instrument reading header data RE h) a it can be performed at high speed.
- audio data element header data AE h includes key data KA and Rengusude Isseki LA is O over Do-specific data. Since the render data is determined at the end of the recording of the audio data, the seek operation can be reduced by placing it in the header. Since the first to m-th body annual rings 201 to 202 do not include the key data KA and the length data LA, the reproducing device or the reproduction device that cannot interpret the key data KA and the length data LA Even in the program, the data contained in the first to m-th body annual rings 201 to 202 can be reproduced.
- a video data file having the same format as the audio file 112 shown in FIG. 2B may be generated based on the video data 101.
- Such a video data file is a data file in which video data is arranged in place of the audio data shown in FIG. 2B.
- the unique data indicates data relating to the video data.
- This video data file is divided into a plurality of video data elements in the same manner as the audio overnight element shown in FIG. 3B, and arranged in a pod ring.
- the audio data 102 may include a plurality of audio unit data divided in a predetermined data unit, and the audio data in the same format as the video data file 111 shown in FIG. 2A.
- a file may be generated.
- Such an audio data file is a data file in which audio unit data is arranged instead of the video unit data shown in FIG. 2A.
- the unique data indicates data relating to the audio unit data.
- This audio data file is divided into a plurality of audio data elements like the video data element shown in FIG. 3A, and arranged in a body annual ring.
- Figure 6 (a) shows the j-th body annual ring 2 2 1 (j is an integer satisfying 1 ⁇ j ⁇ m).
- the real-time metadata element RE j and the four-channel audio data element ⁇ ⁇ 5 are arranged before the video data element VE j in the playback direction.
- Fig. 6 (b) shows the body ring 227 for comparison.
- the real-time metadata element RE j and the four-channel audio data element AE j are arranged behind the video data element VE j in the playback direction.
- the data playback start (display start) This is enabled when the data read starts from the beginning of the video data element VE j (the playback start point is indicated by reference symbol Rs).
- the real-time metadata elements REj and the four-channel audio element AEj in the j-th body ring 221 are stored in the buffer memory of the playback device. This is because the real-time metadata element RE j, the four-channel audio element AE j and the video data element VE j can be simultaneously reproduced when data reading is started.
- data reproduction starts when the pickup starts reading data from the beginning of the audio data element AEj of the fourth channel. If the video data element V Ej and the real-time metadata element REj in the body ring 227 and the audio data element j ; of the first to third channels are not stored in the buffer memory, the real-time metadata element REj And the 4-channel audio data element ⁇ ”and the video data element VEj cannot be played simultaneously.
- each element in the annual ring contains 2 seconds of data
- one ECC block is 64 KB
- the real-time metadata element RE is a 6 ECC block
- an audio data element is about 3 ECC blocks
- video data overnight element VEj is about 100 ECC blocks.
- Figure 7 shows the auxiliary AV data element from multiple body annual rings (j-th body annual ring 221, ⁇ + 1 Podian annual ring 222, g-th annual body ring 223) (g is an integer satisfying j + l ⁇ g ⁇ m).
- the access procedure of the pickup for reading S Ej and real-time metadata element REj is shown. In Fig. 7, some elements are omitted to simplify the discussion.
- the access flow is represented by reference numeral Ac.
- the audio data element AEj and the video data element VEj recorded on the information recording medium 150 are searched at high speed, the audio data element AEj and the video data element VEj are not reproduced, but the auxiliary AV is used. Overnight element SE j is played. This is because the auxiliary AV data element SE j has a higher compression ratio than the video data element VE j and can be read from the information recording medium 150 at high speed.
- the time code and UM ID included in the real-time metadata element REj are displayed on the screen to make it easier to detect a given scene.
- the auxiliary AV data element SEj and the real-time metadata element REj are arranged and recording the auxiliary AV data element SEj and the real-time metadata element REj adjacent to each other, the data between the auxiliary AV data element SEj and the real-time data element RE " Access involving skipping of the pickup is eliminated, and the auxiliary AV data element SEj and the real-time metadata element REj can be read from the information recording medium 150 at high speed.
- auxiliary AV data element SE contains high-compression audio data
- a predetermined scene can be detected while listening to the audio output during high-speed search.
- FIG. 8 is a diagram for explaining a procedure of starting playback from a high-speed search in a short time.
- FIG. 8A shows the “th” body annual ring 221, the j + 1th body annual ring 222, and the gth body annual ring 223.
- FIG. 8 some elements are omitted for simplicity of explanation.
- each of the auxiliary AV data elements SEj to g is closer to the playback direction than the video data overnight elements VEj to g .
- Figure 8 (b) shows the body rings 224 to 226 for comparison.
- each of the auxiliary AV data elements SEj to g is disposed after the video data elements VEj to g in the reproduction direction.
- the pickup is normally Since the prefetching is performed, the prefetching is performed before the auxiliary AV data element SEj indicating the scene (the prefetching of the pickup is indicated by reference numeral Pr).
- the pick-up accesses the video data element VEj.
- the auxiliary AV data element SEj includes high-compression audio data, a predetermined scene can be detected while listening to the audio output during high-speed search.
- metadata can be output during high-speed search. For this reason, when outputting not only video data but also audio data and metadata, it also accesses the real-time metadata element REj.
- FIG. 8 (b) in order for the pickup to access the video data element VE corresponding to the image specified by the user at the time when the user has specified the specific scene, FIG. It is necessary to access a longer distance than shown in). This is because, in FIG. 8B, necessary data is recorded before the auxiliary AV data overnight element SEj.
- auxiliary AV data element S ⁇ by arranging the auxiliary AV data element S ⁇ ; at the beginning in the body annual ring, the output of the main video data from the high-speed search can be accelerated. I can do it.
- FIG. 9 illustrates which body annual rings include data near the boundary when the data file is divided into elements at the ECC block boundary before and after the mark.
- FIG. ECC block boundaries are represented by the symbol ⁇ .
- Data A shown in FIG. 9 represents auxiliary AV data elements SEj, SEj + 1, and data B, C each represent a video data element VE VE j + 1 .
- Data B is a position where the video data file 111 is divided at a position before the mark position Mp and separated from the mark position by a data size that is an integral multiple of the ECC block unit of the information recording medium 150. Shows the data structure.
- Data C is a data structure when the video data file 111 is divided at a position behind the mark position and separated from the mark position by a data size that is an integral multiple of the ECC block unit of the information recording medium 150. Is shown.
- Such division processing is performed by the division unit 120 (FIG. 1).
- the dividing unit 120 marks the corresponding position in the video data file 111 in order to specify the position corresponding to the head of the auxiliary AV data element SE j + 1 .
- Each auxiliary AV element is obtained by dividing the MXF file body 182 (Fig. 2C) based on the base annual ring period of the annual ring format.
- the division unit 120 puts a mark at a position corresponding to the head position (start position of the reference annual ring period) of the auxiliary AV data overnight element SE j + 1 in the video data file 11.
- Each video data element is obtained by dividing the MXF file body 162 ( Figure 2A) with reference to the reference ring period in the annual ring format. Also in the dividing operation shown in FIG. 9, the video data file 111 is divided on the basis of the reference annual ring period.
- Video data files 111 Is split such that the size of the split video data element is an integer multiple of 65536
- the dividing unit 120 divides the video data file 111
- the video data 231 corresponding to the end of the auxiliary AV data element SE j is included in the first half of the video data element VE j + 1 Divided as follows.
- the dividing unit 120 converts the video data file 232 corresponding to the head of the auxiliary AV data element SE j + i into the video data element VE j. Divide so that it is included in the second half.
- FIG. 10 (a) is a diagram illustrating an access operation to the j-th body annual ring 221 and the j + 1-th body annual ring 222 when the video data file 111 is divided as shown in FIG.
- the video data 231 corresponding to the end of the auxiliary AV data overnight element SEj is included in the first half of the video data element VE j + 1 .
- the data of the j + 1-th body annual ring 222 is read.
- Access and read the auxiliary AV data element SE j + 1 and read the data by accessing the video data element VE j + 1 .
- FIG. 10B is a diagram illustrating an access operation to the j-th body annual ring 221 and the j + 1-th body annual ring 222 when the video data file 111 is divided like data C.
- Video data 232 corresponding to the head of auxiliary AV data element SE j + 1 is included in the latter half of video data element VEj.
- the auxiliary AV data element SEj of the ⁇ 'th body annual ring 221 is read, and then the auxiliary AV data element SE j + 1 of the j + 1th body annual ring 222 (including the auxiliary AV data 234 related to the video data 232). ) Access and read After that, the video data element VE is accessed to read the data.
- the movement distance of the pickup shown in FIG. 10 (a) is determined by the movement of the pickup shown in FIG. 10 (b). It turns out that it is much shorter than the distance. Therefore, when the auxiliary AV data element and the video data element are played back simultaneously, the access time becomes shorter if the video data file 111 is divided by the division procedure shown in data B of FIG. If the auxiliary AV data element and the video data element can be reproduced simultaneously, the auxiliary AV data element is sent to a remote playback device using a network or the like while the video data element is displayed on a monitor. Also, the video data element and the auxiliary AV data element can be played back in synchronization.
- Fig. 11 is a diagram for explaining which body annual rings include the data near the boundary when the data file is divided into elements at the ECC block boundaries before and after the mark. ECC block boundaries are represented by symbols.
- Data A1 shown in FIG. 11 represents video data elements VEj and VEj + 1
- data Bl and C1 are audio data elements AE AEj + 1 (or real-time metadata element RE ", respectively).
- RE j + 1 is an audio data element AE AEj + 1 .
- Data B 1 is the audio data file 112 (or metadata file 1
- Data C 1 is the position of the audio data file 112 (or metadata file 1 14) at a position after the mark position and separated from the mark position by a data size that is an integral multiple of the ECC block unit of the information recording medium 150.
- Such division processing is performed by the division unit 120 (FIG. 1).
- the dividing unit 120 marks the corresponding position in the audio data file 112 (or the meta data file 114) in order to specify the position corresponding to the beginning of the video data element VE j + 1 .
- Each video element is obtained by dividing the MXF file body 162 (Fig. 2A) based on the reference annual ring period of the annual ring format.
- the dividing unit 120 marks the position corresponding to the start position (start position of the reference annual ring period) of the video data element VE j + 1 in the audio data file 112 (or the data file 114).
- Each audio element is obtained by dividing the audio data file 112 based on the start time of the first frame data of the video element. Also in the dividing operation shown in FIG. 11, the audio data file 112 is divided based on the start time of the first frame data of the video element.
- T VE (y) is the start time of the frame corresponding to the start byte position y of the video data element.
- k is the byte length per sample data (for example, 2 bytes or 3 bytes).
- Fs is the sampling frequency (for example, 48 kHz).
- the audio data file 112 is divided so that the size of the divided audio data element is an integral multiple of 65536 bytes.
- Each real-time metadata element is obtained by dividing the real-time metadata file 114 having a BIM file body with reference to the start frame data of the video element. Also in the dividing operation shown in FIG. The real-time metadata file 114 is divided based on the start frame data of the video element.
- the real-time metadata file 114 is divided such that the size of the divided real-time metadata element is an integral multiple of 65536 bytes.
- the dividing unit 120 outputs the audio data (video data 235) corresponding to the video data 235 at the end of the video data element VEj.
- real-time metadata 237 is split so that it is included in the first half of audio data element AE j + 1 (or real-time metadata element RE j + ).
- the dividing unit 120 When the audio data file 112 (or the real-time metadata file 114) is divided, the dividing unit 120 outputs the audio data corresponding to the video data 236 at the head of the video data element VE j + 1. Audio data (or real-time metadata) 238 so that it is included in the second half of the audio data element AEj (or real-time metadata element RE).
- FIG. 12 (a) shows the j-th body annual ring 22 when the audio data file 112 and the real-time meta data file 114 are divided as shown in FIG.
- FIG. 10 is a diagram illustrating an access operation to the first and j + 1th body annual rings 222.
- Video data The audio data (or real-time metadata) 237 corresponding to the video data 235 at the end of the element VEj is included in the first half of the audio data element AE j +1 (or the real-time metadata element RE j +1 ) Is divided as follows.
- FIG. 10B illustrates an access operation to the j-th body annual ring 221 and the j + 1-th body annual ring 222 when the audio data file 112 and the real-time metadata file 114 are divided like data C1.
- FIG. Video data-Audio data corresponding to the video data 236 at the beginning of the element VE j + 1 (or real time data 218) 238 is the audio data element A ⁇ ; ⁇ (or the real time metadata element REj) It is divided so that it is included in the latter half of.
- the movement distance of the pickup shown in FIG. 12 (b) is the same as the movement of the pickup shown in FIG. 12 (a). It turns out that it is much shorter than the distance.
- Real-time metadata elements, audio data elements, and video data elements In the case of playing back both at the same time, the access time will be shorter if the real-time data element and the audio element are divided so that they are arranged before the video data element.
- the main video data and audio data can be played from any point. In this case, the access processing of the pickup can be reduced.
- the data size obtained by adding the video unit data, the video-specific data, the filling data, and the filling data-specific data is an integral multiple of the sector unit of the information recording medium. Is equal to As a result, when the user performs editing such as partial deletion of the video, it is possible to access the frame to be edited at high speed, and thus the editing can be performed at high speed.
- the present invention is useful in a recording device and a recording method for recording video data and audio data on an information recording medium, an information recording medium on which video data and audio data are recorded, and the like.
- the metadata The element and the audio data element are arranged before the video data element in a predetermined recording unit. Further, the metadata element and the auxiliary data element are arranged adjacently in a predetermined recording unit. The auxiliary data element is arranged before the metadata element, the audio data element, and the video data element. With these data arrays of the present invention, a high-speed reproduction operation including a high-speed search can be performed.
- the present invention is useful in a recording device and a recording method for recording video data and audio data on an information recording medium, an information recording medium on which video data and audio data are recorded, and the like.
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Television Signal Processing For Recording (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04745962A EP1643767A4 (en) | 2003-06-11 | 2004-06-09 | RECORDING DEVICE, INFORMATION RECORDING MEDIUM AND RECORDING PROCEDURE |
| CA2528967A CA2528967C (en) | 2003-06-11 | 2004-06-09 | Recording apparatus, information recording medium and recording method |
| US10/560,331 US7680398B2 (en) | 2003-06-11 | 2004-06-09 | Recording device, information recording medium and recording method |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003-167125 | 2003-06-11 | ||
| JP2003167125 | 2003-06-11 | ||
| JP2003-280472 | 2003-07-25 | ||
| JP2003280472A JP2005027261A (ja) | 2003-06-11 | 2003-07-25 | 記録装置、情報記録媒体および記録方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004112392A1 true WO2004112392A1 (ja) | 2004-12-23 |
Family
ID=33554391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2004/008420 Ceased WO2004112392A1 (ja) | 2003-06-11 | 2004-06-09 | 記録装置、情報記録媒体および記録方法 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7680398B2 (ja) |
| EP (1) | EP1643767A4 (ja) |
| JP (1) | JP2005027261A (ja) |
| CA (1) | CA2528967C (ja) |
| WO (1) | WO2004112392A1 (ja) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005020330A (ja) * | 2003-06-26 | 2005-01-20 | Sony Corp | 情報処理装置および方法、記録媒体、並びにプログラム |
| JP4144583B2 (ja) * | 2004-10-06 | 2008-09-03 | ソニー株式会社 | 記録再生装置および編集方法 |
| JP4906274B2 (ja) * | 2005-05-20 | 2012-03-28 | 日本放送協会 | メタデータ統合装置及びメタデータ統合プログラム |
| US8065335B2 (en) * | 2005-12-09 | 2011-11-22 | Lg Electronics Inc. | Method for managing and processing information of an object for presentation of multiple sources and apparatus for conducting said method |
| FR2908199B1 (fr) * | 2006-11-06 | 2009-01-16 | Ubicmedia Soc Par Actions Simp | Procede et dispositif pour l'edition et la diffusion controlees de fichiers multimedias compresses |
| EP2123036A1 (en) * | 2007-02-23 | 2009-11-25 | Maxlinear, Inc. | Channel change latency reduction |
| JP2008250475A (ja) * | 2007-03-29 | 2008-10-16 | Brother Ind Ltd | 情報処理装置、ネットワークシステム、およびプログラム |
| JP4664993B2 (ja) * | 2008-01-07 | 2011-04-06 | 株式会社東芝 | 素材処理装置及び素材処理方法 |
| CN103327280A (zh) * | 2013-07-16 | 2013-09-25 | 无锡方圆环球显示技术股份有限公司 | 多媒体摄录时加入定位轨迹数据的方法 |
Citations (3)
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|---|---|---|---|---|
| JPH1188827A (ja) * | 1997-09-11 | 1999-03-30 | Sony Corp | 撮像装置、編集装置及び編集システム |
| JPH11250629A (ja) * | 1998-03-02 | 1999-09-17 | Toshiba Corp | オーディオ用データ構造とその記録媒体及び再生装置 |
| JP2003032632A (ja) * | 2001-07-19 | 2003-01-31 | Nec Corp | 映像記録再生装置、データ配置方式およびデータ配置方法を記述したプログラム |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2712656B2 (ja) * | 1989-10-25 | 1998-02-16 | 日本電気ホームエレクトロニクス株式会社 | Cd―rom記録方法 |
| JPH05109198A (ja) | 1991-10-15 | 1993-04-30 | Nippon Telegr & Teleph Corp <Ntt> | 音声映像蓄積方式 |
| JP3483612B2 (ja) | 1994-04-08 | 2004-01-06 | 株式会社東芝 | 記録方法、記録装置並びに再生装置 |
| JP3568984B2 (ja) * | 1994-06-20 | 2004-09-22 | 株式会社日立製作所 | 情報の再生方法、再生装置、出力方法及び出力装置 |
| JP3701051B2 (ja) * | 1995-07-04 | 2005-09-28 | パイオニア株式会社 | 情報記録装置及び情報再生装置 |
| JP3847888B2 (ja) | 1997-03-31 | 2006-11-22 | 株式会社東芝 | ディスク装置及び同装置における欠陥による再配置データの高速ホスト転送方法 |
| EP2261920A3 (en) * | 1998-02-23 | 2011-03-09 | Kabushiki Kaisha Toshiba | Information storage medium, information playback method and apparatus and information recording method |
| JP3383587B2 (ja) * | 1998-07-07 | 2003-03-04 | 株式会社東芝 | 静止画像連続情報記録方法と光ディスクと光ディスクの情報再生装置と情報再生方法 |
| JP4178432B2 (ja) | 1999-06-15 | 2008-11-12 | ソニー株式会社 | 記憶装置及び記憶方法 |
| JP2001061144A (ja) | 1999-08-23 | 2001-03-06 | Mega Chips Corp | 伝送システム |
| JP4174960B2 (ja) | 2000-08-11 | 2008-11-05 | ソニー株式会社 | 信号処理装置及び方法並びにファイル生成方法 |
| US7149750B2 (en) * | 2001-12-19 | 2006-12-12 | International Business Machines Corporation | Method, system and program product for extracting essence from a multimedia file received in a first format, creating a metadata file in a second file format and using a unique identifier assigned to the essence to access the essence and metadata file |
-
2003
- 2003-07-25 JP JP2003280472A patent/JP2005027261A/ja active Pending
-
2004
- 2004-06-09 US US10/560,331 patent/US7680398B2/en active Active
- 2004-06-09 CA CA2528967A patent/CA2528967C/en not_active Expired - Lifetime
- 2004-06-09 EP EP04745962A patent/EP1643767A4/en not_active Withdrawn
- 2004-06-09 WO PCT/JP2004/008420 patent/WO2004112392A1/ja not_active Ceased
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1188827A (ja) * | 1997-09-11 | 1999-03-30 | Sony Corp | 撮像装置、編集装置及び編集システム |
| JPH11250629A (ja) * | 1998-03-02 | 1999-09-17 | Toshiba Corp | オーディオ用データ構造とその記録媒体及び再生装置 |
| JP2003032632A (ja) * | 2001-07-19 | 2003-01-31 | Nec Corp | 映像記録再生装置、データ配置方式およびデータ配置方法を記述したプログラム |
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| Title |
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Also Published As
| Publication number | Publication date |
|---|---|
| CA2528967C (en) | 2013-08-20 |
| EP1643767A1 (en) | 2006-04-05 |
| CA2528967A1 (en) | 2004-12-23 |
| EP1643767A4 (en) | 2006-05-31 |
| US7680398B2 (en) | 2010-03-16 |
| JP2005027261A (ja) | 2005-01-27 |
| US20060280479A1 (en) | 2006-12-14 |
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