WO2006025607A1 - Video data recording method, video data recording device, video data recording/reproducing device and video data recording medium - Google Patents

Abstract

A video data recording method includes a step of configuring a stream object unit (SOBU) at least for each GOP (Group Of Pictures) from video data (101), and a step of recording the SOBU as recording data in a file and recording in the file a position in each stream object unit wherein the start point or the end point of a core picture appearing in each stream object unit exists. In digital broadcasting, only the core pictures can be easily extracted from a video stream recorded in a recording medium, and furthermore, high speed copying onto other recording medium can be performed.

Description

 Video data recording method, video data recording device, video data recording / playback device,

 And video data recording media

 The present invention relates to recording / playback of video data such as digital broadcast data, analog broadcast data, and Internet data in a recording device such as a hard disk ZDVD combo video recorder, DVD video recorder, DVD stream recorder, hard disk video recorder, etc. The present invention relates to a method, an apparatus, and a recording medium. Background art

 Conventionally, a DVD—VR (Digital Versatile Disc-Video Recording) format standard has been standardized as a video recording format for a DVD (Digital Versatile Disc).

 DVD-VR is a format whose main purpose is to digitize analog video and record it as MPEG (Moving Picture Experts Group) -2 and is spreading as a product all over the world.

 — On the other hand, HD (High Definition) DVD capable of high-capacity recording with a blue laser diode has recently been studied for the next generation, and the HD DVD-HDVR format has been standardized as an HDTV (High Definition Television) video recording format. It is being done.

Japanese Patent Laid-Open Publication No. 2000-091-936 (Document 1) describes a storage device as a recording medium, and the storage device for each I (Intra) picture in MPEG 2 data as special playback information. It is disclosed that the storage position (storage start position address and storage end position address in the storage device) is stored (see paragraph [0 0 1 2]). Disclosure of the invention

 Problems to be solved by the invention:

 However, the DVD-VR format has the following problems when attempting to partially play back or transmit partially recorded data.

 That is, if only the core picture, that is, the I picture, is extracted from the recording stream and played back continuously, or if only the I picture is extracted and data transmission is attempted to other devices as the still picture data, the I picture ends. The point is not immediately known. Therefore, by decoding and analyzing the stream, it will be possible to extract only one I picture for the first time, but this will allow partial playback (I picture single playback) or partial transmission (I picture transmission). High speed, simultaneous operation of multiple channels, simultaneous operation with realization of different functions, and low power consumption become extremely difficult.

 Patent Document 1 stores the address of the recording medium as the position of the I picture, and does not record the position of the I picture in the actual video data on the recording medium. Therefore, when data is dubbed to another recording medium different from the recording medium, the address changes, so that address recalculation is required, and high-speed dubbing is impossible.

 An object of the present invention is to provide a recording that can easily extract at least one picture from an aggregate of a plurality of pictures recorded on a recording medium and that enables high-speed dubbing of data to another recording medium. It is to provide a method.

 Another object of the present invention is that in digital broadcasting, only a core picture can be easily extracted from a video stream recorded on a recording medium, and high-speed dubbing of data to another recording medium is possible. It is to provide a video data recording method.

 Another object of the present invention is to provide a video data recording apparatus for executing the video data recording method described above.

 Still another object of the present invention is to provide a video data recording / reproducing apparatus that executes the above-described video data recording method and reproduces recorded data.

Another object of the present invention is to record video data recorded by the above video data recording method. To provide a medium.

 Means to solve the problem:

 According to the present invention,

 A step of recording video data including an aggregate of a plurality of pictures as recording data;

 Recording a position where a start point or an end point in the video data of at least one picture appearing in the aggregate is present.

 Also according to the invention,

 Configuring a stream object unit (S0BU) for each of one or more GOPs (Group Of Pictures) from video data;

 Video data recording method comprising: recording the stream object unit as recording data; and recording a position where a start point or end point of a core picture appearing in each stream object unit exists. Is obtained.

 Furthermore, according to the present invention,

 A step of configuring a stream object unit (S0BU) for each of one or more GOPs (Group Of Pictures) from video data;

 Recording the stream object unit as recording data in a first file;

 And recording the position where the start point or end point of the core picture appearing in each stream object unit exists in the second file.

 Also according to the invention,

 A step of configuring a stream object unit (S0BU) for each of one or more GOPs (Group Of Pictures) from video data;

A step of recording the stream object unit as recording data, and a starting point of a core picture that first appears in each stream object unit; Or a step of recording a position where the end point exists.

 Furthermore, according to the present invention,

 Configuring a stream object unit (S0BU) for each of one or more GOPs (Group Of Pictures) from video data;

 Recording the stream object subject as recording data in a first file;

 And recording the position where the start point or end point of the core picture first appearing in each stream object unit exists in the second file.

 Further, according to the present invention, a video data recording apparatus that executes any of the above video data recording methods can be obtained.

 Furthermore, according to the present invention, there is obtained a video data recording / reproducing apparatus characterized by executing any one of the above video data recording methods and reproducing the recorded data. According to the invention, in any of the video data recording methods, the stream object unit is recorded, and the position in each stream object unit where the start point or end point of the core picture exists is recorded. A video data recording medium characterized by the above is obtained.

 Furthermore, according to the present invention,

 A program for causing a computer to execute predetermined processing, wherein the predetermined processing includes:

 A step of recording video data including an aggregate of a plurality of pictures as recording data;

 Recording a position where a start point or an end point in the video data of at least one picture appearing in the aggregate is present.

 Also according to the invention,

A program for causing a computer to execute a predetermined process, The predetermined process is:

 Configuring a stream object unit (S0BU) for each of one or more GOPs (Group Of Pictures) from video data;

 Recording the stream object unit as recording data, and recording the position where the start point or end point of the core picture appearing in each stream object unit exists. A program is obtained.

 Also according to the invention,

 A program for causing a computer to execute a predetermined process,

 The predetermined process is:

 Configuring a stream object unit (S0BU) for each one or more GOPs (Group Of Pictures) from video data;

 Recording the stream object unit as recording data in a first file;

 And recording the position where the start point or end point of the core picture appearing in each stream object unit exists in the second file.

 Furthermore, according to the present invention,

 A program for causing a computer to execute a predetermined process,

 The predetermined process is:

 Configuring a stream object unit (S0BU) for each of one or more GOPs (Group Of Pictures) from video data;

 Video data recording, comprising: recording the stream object unit as recording data; and recording a position where a start point or end point of a core picture that first appears in each stream object unit exists. Program can be obtained.

 Also according to the invention,

A program for causing a computer to execute a predetermined process, The predetermined process is:

 Configuring a stream object unit (S0BU) for each of one or more GOPs (Group Of Pictures) from video data;

 Recording the stream object unit in a first file as recording data;

 And recording the position where the start point or end point of the first core picture that appears in each stream object unit exists in the second file. It is done.

 The invention's effect:

 According to the present invention, at least one picture can be easily extracted from an aggregate of a plurality of pictures recorded on a recording medium, and recording that enables high-speed dubbing of data to another recording medium A method and a recording program are obtained. This is because the position where the start point or end point exists in the video data of at least one picture appearing in the aggregate is recorded.

 Furthermore, with the video data recording method according to the present invention and the video data recording program according to the present invention, only the core picture can be easily extracted from the video stream recorded on the recording medium in digital broadcasting. The video data recording method according to the present invention and the video data recording program according to the present invention do not store the address of the recording medium as the position of the I picture, but record the position of the I picture in the actual video data. It is recorded on a medium. Therefore, even if data is dubbed to another recording medium different from the recording medium, address recalculation is not required, and high-speed dubbing is possible. Brief Description of Drawings

 FIG. 1 is a diagram for explaining a video data recording method according to a first embodiment of the present invention.

 FIG. 2 is a diagram for explaining the video data recording method of FIG.

FIG. 3 is a diagram for explaining a video data recording method according to a second embodiment of the present invention. It is.

 FIG. 4 is a block diagram of a video data recording / reproducing apparatus for recording a digital broadcast by applying the present invention to the DVD-VR format.

 FIG. 5 is a diagram for explaining the partial TS in FIG.

 FIG. 6 is an example of a time map used in FIG. Best Mode for Carrying Out the Invention:

 Next, embodiments of the present invention will be described with reference to the drawings.

 [First embodiment]

 A video data recording method according to a first embodiment of the present invention will be described with reference to FIG. The video data recording method according to the first embodiment includes a first step of forming a SOBU (stream object unit) for each GOP (Group Of Pictures) from the video data 1001. In FIG. 1, the video data 1 0 1 is an I picture ntra picture or I coded intra coded picture), a B picture B (bidirectionally predictive coded picture) B, and a P picture P (predictive picture or label is predictive coded picture). In video data 1001, 1 G0P consists of one I picture, four P pictures, and 10 B pictures. In the example shown in FIG. 1, in the first step, an S0BU (stream object unit) is configured for each 1 G0P (= 15 picture) from video data 1 0 1.

 Furthermore, in the video data recording method according to the first embodiment, the S0BU is recorded as recorded data in the first file 11 of the disk 1 1 2 and a core picture (that is, an I picture) appearing in each S0BU. The second step of recording the position in each S0BU where the starting point or the ending point of (2) exists in the second file 1 2 of the disk 1 1 2 as a time map is included.

The core picture may be an I picture and a P picture. In this case, in the second step, the S0BU is recorded as recorded data in the first file 11 of the disk 1 1 2 and the core picture that appears in each S0BU The position in each S0BU where the start point or end point of (that is, the I picture and P picture) exists is recorded as a time map in the second file 12 of the disk 1 12.

 In addition, by creating a program including the above steps as a predetermined process and causing the computer to execute the program, the video data according to the first embodiment is obtained.

-The data recording method can be performed on a computer.

 Referring to FIG. 2, the video data 1 0 1 in FIG. 1 is a packet of a certain number of buckets (1 70 in the example shown) (in the example shown, a transport stream (TS) packet). ), And each of the packets is shown as digital broadcast data 1001 having a header H and a fixed number of bytes of data of 1 or more. Each bucket is 1 8 8 B y t e s in the example shown. A bucket group may have a header (bucket group header) at the beginning and an arrival time (PATS: Packet Arrival Time Stamp) immediately before or after each packet, and may contain other data. Good. In this case, in FIG. 1, the packet group number and the transport stream bucket number in the bucket group where the start point or the end point of the core picture (that is, I picture) appearing in each SOBU exists It is shown as the position in each SOBU where the start or end point of the picture exists.

 It should be noted that at least one of the bucket group number picker, the bucket number in the bucket group, and the byte number in the bucket where the start point or end point of the core picture (I picture) that appears in each SOBU exists. The position may be indicated as the position in each SOBU where the start point or end point of the core picture (I picture) exists.

In FIG. 1, after selecting whether to record or not to record the position in each SOBU where the start point or end point of the core picture (I picture) exists, recording is performed. A flag indicating whether to record or not is recorded separately in the third file 1 3 of the disc 1 1 2. At this time, the recorded data recorded in the first file 11 1 is doubled in a predetermined unit, and the position in each SOBU where the start point or end point of the core picture (I picture) exists in a group unit. After selecting whether to record or not, if you choose to record, you will record, and a flag indicating whether to record in groups or not will be flagged on the third disk 1 12 File 13 may be recorded separately.

 [Second Example]

 Next, a video data recording method according to a second embodiment of the present invention will be described with reference to FIG.

 The video data recording method according to the second embodiment includes a step of configuring a SOBU (stream object unit) for each of a plurality of G 0Ps from the video data 101. In the example shown in FIG. 3, a SOBU is configured for every two G0Ps from the video data 101.

 Furthermore, in the video data recording method according to the second embodiment, S0BU is recorded as recorded data in the first file 11 of the disk 1 1 2 and the core picture that first appears in each SOBU (ie, This includes a recording step of recording the position in each SOBU where the start point or end point of the first GOP (I picture) exists in the second file 12 of the disk 112 as a time map.

 Here, the video data recording method according to the second embodiment can be performed on a computer by creating a program including the above steps as a predetermined process and causing the computer to execute the program.

Video data 101 in FIG. 3 Assume that the digital broadcast data 101 shown in FIG. That is, the digital broadcast data 101 in FIG. 2 includes a packet group having a certain number of packets of 1 or more (170 in the example shown) (transport stream (TS) packet in the example shown). There are a plurality of packets, and each of the packets has a header H and data of a certain number of bytes of 1 or more. Each packet is 1 88 By tes in the example shown. A packet group is preceded by a header (one packet group header), and each packet. It may have a packet arrival time stamp (PATS) immediately before or after the packet, and may contain other data.

 In this case, in Fig. 3, the packet group number and the transport stream bucket number in the bucket group where the start point or end point of the first core picture (I picture of the first GOP) that appears in each SOBU exists. Is shown as the position in each SOBU where the start point or end point of the core picture (I picture of the first GOP) exists.

 Note that the start or end point of the first core picture (the first GOP I-picture) that appears in each SOBU exists, the packet group number, the packet number in the packet group, and the byte number in the bucket. At least one of them may be indicated as a position in each SOBU where the start point or end point of the core picture (the I picture of the first GOP) exists. In Fig. 3, when selecting whether to record or not to record the position in each SOBU where the start point or end point of the core picture (the first GOP I picture) exists Records and records a flag indicating whether to record further or not in the third file 13 of the disc 1 1 2 separately.

 At this time, the recording data recorded in the first file 11 1 is dipped in a predetermined unit, and the position in each SOBU where the start point or end point of the core picture (I picture) exists in a group unit. If you choose to record or not to record and choose to record, you will record, and a flag indicating whether to record in groups or not will be flagged as the third file 1 on disc 1 1 2 3, it may be recorded separately.

 As one of the video data recording methods described above, as a video data recording medium in which the S0BU is recorded and the position in each stream object unit where the start point or end point of the core picture exists is recorded Disc 1 1 2 is obtained.

As described above, in the present invention, one or more GOPs (Grou When a stream object is configured for each (P Of Pictures), the S0BU and the position where the start point or end point of the core picture of each stream object exists are recorded in a file. You can immediately know the start point or end point, and you can easily realize partial playback or partial transmission speedup, simultaneous operation of multiple channels, simultaneous operation with other functions, and low power consumption. Become.

 In the present invention, at the same time, special playback functions such as jog and shuttle can be easily realized. This is because the core picture can be taken out at high speed.

 Also, by recording the packet group number at the start point or end point, and the transport stream number in the packet loop, that is, the bucket number, the start point and end point of the core picture can be found on a packet basis, and By recording the start point and end point with the bucket number in the stream, the start point and end point can be determined without being affected by the address structure of each medium.

 That is, for example, as in Patent Document 1, compared to the case where the sector address of the start point and end point of the core picture is recorded,

 • Since the bucket to which the core picture must be sent can be specified directly, garbage data when sending data in packets can be deleted.

 • Since the start and end points are specified by the bucket number in the stream, the display does not change depending on the recording medium, and there is no need to recalculate the address when dubbing data to a different medium. Low power consumption and high speed dubbing are possible.

 Has the effect.

 Here, when FIG. 1 and FIG. 3 are put together, the present invention

 A step (1 1) of recording video data including an aggregate of a plurality of pictures (SOBU) as recording data;

And (12) recording a position where a start point or an end point in the video data of at least one picture appearing in the aggregate exists. It can also be regarded as a characteristic recording method.

 Furthermore, the recording method can be performed on a computer by creating a program including the above steps as a predetermined process and causing the computer to execute the program.

 Next, FIG. 4 showing a video data recording / reproducing apparatus that executes the video data recording method described above and reproduces the recorded data will be described.

 Fig. 4 shows an example of recording a digital broadcast by applying the present invention to the DVD-VR format.

 Figure 4 shows an example of recording broadcast data as TS (Transport Stream).

 The input digital broadcast data 101 is separated as a partial TS 103 via an STB (Set Top Box) 102.

 As shown in FIG. 5, the partial TS103 is obtained by extracting only TS of the same frequency (four channels in the example shown) from a plurality of TSs. Partial TS103 is output as video stream data file HR—STRx.SRO (105) by video stream data processing block 104, and at the same time, navigation data processing block 106 navigates to navigation data file HR_MANGR. IF0 (107). The time map data processing block 108 outputs the time map data file HR_STMx. IF0 (109).

 104 generates the video stream data file HR_STRx.S R0 (1 05) according to the format specified in the predetermined DVD recording format for the partial TS103, but it may have its own recording format, Or you can record 103 as is.

 106 generates a navigation data file HR_MANGR. IF0 (107) for the partial TS 103 in accordance with a format defined by a predetermined DVD recording format. For example, data such as video compression format, bit rate, frame frequency, and aspect ratio correspond to this.

Also, the position where the start point or end point of the first core picture exists, which will be described later A flag that indicates whether or not to record force, a flag that indicates whether or not to record the position where the start point or end point of the first core picture exists, and indicates that the core picture is to be an I picture It is possible to include a flag and a flag indicating that the core picture is an I picture and a p picture.

 1 0 7 can be stored in memory after the occurrence and recorded on the DVD at the end of recording.

 1 0 8 generates a time map data file HR—ST Mx. IF0 (1 0 9) for the partial TS 1 0 3, and for example, 1STREF— SZ, SOBU—PB_TM, S0BU_SZ, SOBU—S—PKT—P0S, 1STREF—E—POS are generated as time maps.

 1 0 9 can be stored in memory after the occurrence and recorded on the DVD at the end of recording.

 The time map data will be described in detail later.

 Finally, these files are integrated by the recording stream generation block 1 1 0 to become one recording data 1 1 1, which is recorded as a recording video stream from the optical head 1 1 4 to the disc (DVD) 1 1 2. To be recorded.

 The control for the generation of these recording data is performed by the overall control block 1 1 3.

 The recorded video stream is composed of TS or partial TS. One TS is composed of 188 bytes.

 A bucket group is composed of 170 TSs.

 A packet group may have a header (packet group header) at the beginning and an arrival time (PATS: Packet Arrival Time Stamp) immediately before or after each bucket, and even if other data is included, Yes.

 A single G0P shall constitute a SOBU (Stream Object Unit).

A time map is generated for each S0BU. The video stream is placed in the HR—STRx. SRO file, and the time map is placed in the HR—STMx. IF0 file. Therefore, even if the HR_STRx.SRO file where the video stream is placed is not accessed, only the HR_STRx.SRO file where the time map is placed can be accessed to know the start and end positions of the I picture in each S0BU. It is possible to transmit only I-pictures easily.

 Although not shown, an example is shown in which the time map is composed of 1STREF_S_PG, 1STREF_S_P0S, ISTREF-SZ, and 1STREF_E_P0S.

 1STREF_S_PG indicates the start packet group number of the first reference picture (ie, I picture).

 1STREF_S_P0S indicates the starting bucket number (ie, starting TS number) in the starting bucket group of the first reference picture (ie, I picture).

 1STREF_SZ is the number of packet groups required by the first reference picture (ie, I picture). Both start packet group and end packet group are added to ISTREF—SZ. This value can also be the ending packet group number as ISTREF—E_PG.

 1STREF_E_P0S indicates the end packet number (ie, end TS number) in the end packet group of the first reference picture (ie, I picture).

 The head position of the I picture in each S0BU usually does not need to be described because it is the first bucket group. However, since S0BU does not always start from the beginning of the packet group, it is not necessarily the first TS or the first byte. Data other than the end position may be described in the time map.

 Figure 6 shows an example of a time map.

 1STREF_SZ is the number of packet groups required by the first reference picture (ie, I picture).

 In S0BU_PB_TM, the display time of the S0BU is indicated by the number of video frames or the number of fields.

S0BLLSZ is the number of packet groups in which the S0BU is recorded. S0BU_S_PKT_P0S is a TS number in the bucket group that this SOBU starts. The result is the same as 1STREF_S__P0S shown in the previous section.

 1STREF—E_P0S indicates the end packet number (ie, end TS number) in the end packet group of the first reference picture (ie, I picture).

 For example, the number of bucket groups required for an I picture is 10; the number of fields per S0BU is 30; the number of packet groups of S0BU is 25; the TS number in the packet group started by the S0BU is 14 8; End of I picture end bucket group When TS number is 7 3,

 1STREF—SZ: 1 0

 S0BU—PB 1 TM: 3 0

 S0BU—SZ: 2 5

 S0BU—S—PKT—P0S: 1 4 8

 1STREF one E—P0S: 7 3

It becomes.

 As a result, the TS packet including the I picture can be efficiently transmitted without waste by transmitting from the TS of the 1st packet group 14 8 packet to the TS of the 10th packet group 7th 3 packet. it can.

 However, the time map shown in Fig. 6 may be changed with respect to the name and order of data. For example, the name of the end packet number in the end packet group of the first reference picture is changed from “1STREF—E_P0S” to “1STREF_E_PKT_P0SJ,

 1STREF—SZ: 1 0

 1STREF—E PKT—P0S: 7 3

 S0BU—PB 1 TM: 3 0

 S0BU—SZ: 2 5

 SOBU— S—PKT— P0S: 1 4 8

The order may be changed as follows. In addition, although not shown in the figure, when recording is selected after selecting whether to record or not record the position where the start point or end point of the first core picture exists, recording is performed and recording is not performed. Do not record when you choose.

 In addition, a flag indicating whether to record or not is recorded separately.

 In this case, the flag may be recorded in a file different from the time map, or it may be recorded in the same file.

 In FIG. 4 as well, recording data is grouped in a predetermined unit, and recording is performed after selecting whether or not to record the position where the first core picture start point or end point exists in group units. If you choose to record, it will be recorded. If you choose not to record, it will not be recorded.

 In addition, a flag indicating whether to record in group units or not is recorded separately. In this case, the flag may be recorded in a file different from the time map, or may be recorded in the same file.

 Here, the core picture can also be an I (Intra) picture.

 Alternatively, the core picture can be an I picture and a P (Predictive) picture.

 It is also possible to indicate whether the core picture has the power to make the I picture one, the I picture one and the P picture, and record the flag.

 The flag may be recorded in a file different from the time map, or may be recorded in the same file.

 Also, the present invention includes a video data recording / reproducing apparatus that records by the video data recording method or reproduces a recorded medium. The video data recording medium recorded by the video data recording method is also included in the present invention.

Claims

1. recording video data including an aggregate of a plurality of pictures as recording data;  Recording a position where a start point or an end point in the video data of at least one picture appearing in the aggregate is present.  of  2. enclosing a stream object unit (S0BU) for each one or more GOP (Group Of Pictures) from video data;  A step of recording the stream object unit as recording data, and a step of recording a position where a start point or end point of a core picture appearing in each stream object unit exists. Data recording method. 3. In the video data recording method according to claim 2,  A video data recording method, wherein the core picture is an I (Intra) picture. 4. In the video data recording method according to claim 2,  The video data recording method, wherein the core picture is an I (Intra) picture or a P (Predictive) picture. 5. In the video data recording method according to claim 2, The video data has a plurality of bucket groups each having a bucket of a certain number of buckets of 1 or more, and each of the packets has data of a certain number of bytes of 1 or more, At least one of the packet group number, the packet number in the packet group, and the byte number in the bucket where the start point or end point of the core picture that appears in each stream object unit exists A video data recording method, characterized in that the start point or end point of a picture is indicated as a position. 6. In the video data recording method according to claim 2,  The video data includes a plurality of packet groups having a transport stream (TS) packet having a certain number of buckets of 1 or more, and each of the transport stream packets has a data of a certain number of bytes of 1 or more. And  The starting point or ending point of the core picture that appears in each stream object unit, the bucket group number and the transport stream bucket number in the bucket group, the position where the starting point or ending point of the core picture exists The video data recording method characterized by showing as follows. 7. In the video data recording method according to claim 2,  Select whether to record or not to record the position where the start point or end point of the core picture exists, and if recording is selected, recording is performed, and a flag indicating whether recording is performed or not is recorded separately. A video data recording method characterized by recording. 8. In the video data recording method according to claim 2, The recording data is grouped in a predetermined unit, and the recording power of the position where the start point or end point of the core picture exists in the group unit is selected. A video data recording method, wherein recording is performed, and a flag indicating whether recording is performed in units of groups is recorded separately. 9. A video data recording apparatus for executing the video data recording method according to claim 2, 10. A video data recording / reproducing apparatus that executes the video data recording method according to claim 2 and reproduces the recorded data. 1 1. In the video data recording method according to claim 2, the stream object unit is recorded, and a position in each stream object unit where the start point or end point of the core picture exists is recorded. A video data recording medium characterized by this. 1 2. A step of configuring a stream object unit (S0BU) for each of one or more GOPs (Group Of Pictures) from video data;  Recording the stream object unit as recording data in a first file;  Recording the position where the start point or end point of the core picture appearing in each stream object unit exists in the second file. 1 3. In the video data recording method according to claim 12,  A video data recording method, wherein the core picture is an I (Intra) picture. 1 4. In the video data recording method according to claim 12,  The video data recording method, wherein the core picture is an I (Intra) picture or a P (Predictive) picture. 1 5. In the video data recording method according to claim 12, The video data has a bucket with a certain number of buckets of 1 or more. A plurality of loops, each packet having a certain number of bytes of data of 1 or more,  At least one of the packet group number, the packet number in the packet group, and the byte number in the bucket where the start point or end point of the core picture that appears in each stream object unit exists A video data recording method characterized by indicating a position where a start point or an end point exists. 1 6. In the video data recording method according to claim 12,  The video data has a plurality of packet groups each having a transport stream (TS) packet having a fixed number of buckets of 1 or more, and each of the transport stream buckets has data of a fixed number of bytes of 1 or more. Have  The start point or end point of the core picture that appears in each stream object unit exists, the bucket group number and the transport stream bucket number in the bucket group, the start point or end point of the core picture exists A video data recording method characterized by showing as a position. 1 7. In the video data recording method according to claim 12,  Select whether to record or not to record the position where the start point or end point of the core picture exists, and if recording is selected, recording is performed, and a flag indicating whether recording is performed or not is recorded separately. A video data recording method characterized by recording. 1 8. In the video data recording method according to claim 12, When the recording data is grouped in a predetermined unit, and recording is selected after selecting whether or not to record the position where the start point or end point of the core picture exists in a group unit. The video data recording is characterized in that a recording is performed and a flag indicating whether recording is performed in units of groups or not is separately recorded. Method. 19. A video data recording apparatus for executing the video data recording method according to claim 12. 20. A video data recording / reproducing apparatus that executes the video data recording method according to claim 12 and reproduces the recorded data. 21. The video data recording method according to claim 12, wherein the stream object unit is recorded and a position in each stream object unit where the start point or end point of the core picture exists is recorded. A video data recording medium. 2 2. A step of configuring a stream object unit (S0BU) for each of one or more GOPs (Group Of Pictures) from video data;  Video data recording, comprising: recording the stream object unit as recording data; and recording a position where a start point or end point of a core picture that first appears in each stream object unit exists. Method. 2 3. In the video data recording method according to claim 22,  A video data recording method, wherein the core picture is an I (Intra) picture. 2 4. In the video data recording method according to claim 22,  The video data recording method, wherein the core picture is an I (Intra) picture or a P (Predictive) picture. 2 5. In the video data recording method according to claim 22, The video data has a plurality of bucket groups each having a bucket of a certain number of buckets of 1 or more, and each of the packets has data of a certain number of bytes of 1 or more,  At least one of the packet group number, the packet number in the packet group, and the byte number in the bucket where the start point or end point of the first core picture that appears in each stream object unit exists. A video data recording method, characterized by indicating the position where the start point or end point of the core picture exists. 2 6. In the video data recording method according to claim 22,  The video data has a plurality of packet groups each having a transport stream (TS) packet having a fixed number of buckets of 1 or more, and each of the transport stream packets has a fixed number of bytes of 1 or more. Have  The starting point or end point of the first core picture that appears in each stream object unit is the bucket group number and the transport stream bucket number in the bucket group. A video data recording method characterized by showing as a position where the 2 7. In the video data recording method according to claim 22,  Select whether to record or not to record the position where the start point or end point of the core picture exists, and if recording is selected, recording is performed, and a flag indicating whether recording is performed or not is recorded separately. A video data recording method characterized by recording. 2 8. In the video data recording method according to claim 22, The recording data is grouped in a predetermined unit, and if recording is selected after selecting whether or not to record the position where the start point or end point of the core picture exists in the group unit, recording is performed. And record in groups A video data recording method, wherein a flag indicating whether or not to record is separately recorded. 29. A video data recording apparatus for executing the video data recording method according to claim 22. 30. A video data recording / reproducing apparatus that executes the video data recording method according to claim 22 and reproduces the recorded data. 31. In the video data recording method according to claim 22, the stream object unit is recorded, and a position in each stream object unit where the start point or end point of the core picture exists is recorded. A video data recording medium characterized by 3 2. A step of configuring a stream object unit (S0BU) for each one or more GOP (Group Of Pictures) from video data;  Recording the stream moving object in a first file as recording data;  Recording the position where the start point or end point of the core picture that first appears in each stream object unit exists in the second file. 3 3. In the video data recording method according to claim 3 2,  A video data recording method, wherein the core picture is an I (Intra) picture. 3 4. In the video data recording method according to claim 32, The video data recording method, wherein the core picture is an I (Intra) picture or a P (Predictive) picture. 3 5. In the video data recording method according to claim 3 2,  The video data has a plurality of bucket groups each having a bucket of a certain number of buckets of 1 or more, and each of the packets has data of a certain number of bytes of 1 or more,  At least one of the packet group number, the packet number in the packet group, and the byte number in the packet where the start point or end point of the first core picture that appears in each stream object unit exists. A video data recording method, characterized by indicating the position where the start point or end point of the core picture exists. 3 6. In the video data recording method according to claim 32,  The video data has a plurality of packet groups each having a transport stream (TS) packet having a fixed number of buckets of 1 or more, and each of the transport stream packets has a fixed number of bytes of 1 or more. Have  The starting point or end point of the first core picture that appears in each stream object unit is the bucket group number and the transport stream bucket number in the bucket group. The starting point or end point of the core picture is A video data recording method, characterized by showing as an existing position. 3 7. In the video data recording method according to claim 32,  Select whether to record or not to record the position where the start point or end point of the core picture exists, and if recording is selected, recording is performed, and a flag indicating whether recording is performed or not is recorded separately. A video data recording method characterized by recording. 3 8. In the video data recording method according to claim 32, The recorded data is grouped in a predetermined unit, and the core picture is grouped. A flag indicating whether to record or not to record in group units when recording is selected and whether or not to record is recorded. A video data recording method characterized by separately recording video. 3. A video data recording apparatus for executing the video data recording method according to claim 3. 40. A video data recording / reproducing apparatus, which executes the video data recording method according to claim 32 and reproduces the recorded data. 4 1. The video data recording method according to claim 32, wherein the stream object unit is recorded, and the position in each stream object tuner where the start point or end point of the core picture exists is A video data recording medium characterized by being recorded. 4 2. A program for causing a computer to execute predetermined processing, wherein the predetermined processing includes:  A step of recording video data including an aggregate of a plurality of pictures as recording data;  Recording a position where a start point or an end point in the video data of at least one picture appearing in the aggregate is present. 4 3. A program for causing a computer to execute a predetermined process, wherein the predetermined process includes:  Configuring a stream object unit (S0BU) for each of one or more GOPs (Group Of Pictures) from video data; Recording the stream object unit as recording data; And a step of recording the position where the start point or end point of the core picture appearing in each stream object unit exists. 4 4. A program for causing a computer to execute predetermined processing, wherein the predetermined processing includes:  Configuring a stream object unit (S0BU) for each of one or more GOPs (Group Of Pictures) from video data;  Recording the stream moving object in a first file as recording data;  And a step of recording in a second file a position where a start point or end point of a core picture appearing in each stream object unit exists. 4 5. A program for causing a computer to execute predetermined processing, wherein the predetermined processing includes:  Configuring a stream object unit (S0BU) for each of one or more GOPs (Group Of Pictures) from video data;  A step of recording the stream object unit as recording data, and a step of recording a position where a start point or an end point of a core picture that first appears in each stream object unit exists. Data recording program. 4 6. A program for causing a computer to execute predetermined processing, wherein the predetermined processing includes:  Configuring a stream object unit (S0BU) for each one or more GOP (Group Of Pictures) from video data; Record the stream object unit as recording data in the first file. Recording steps,  And a step of recording in the second file the position where the start point or end point of the core picture that first appears in each stream object unit is present.