CN101350212B - Processing apparatus and processing method - Google Patents
Processing apparatus and processing method Download PDFInfo
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- CN101350212B CN101350212B CN200810133839.7A CN200810133839A CN101350212B CN 101350212 B CN101350212 B CN 101350212B CN 200810133839 A CN200810133839 A CN 200810133839A CN 101350212 B CN101350212 B CN 101350212B
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Abstract
The invention provides a processing device and a processing method. The device comprises an encoder configured to encoding video and/or audio signal for stream file generation, a processor configured to generate characteristic point information, a recording unit configured to record stream file and corresponding program information file including characteristic point information. The characteristic point information comprises a plurality of streams used by the program, identification information of each stream, attribute information corresponding to every piece of identification information. The characteristic point information is included in program information files corresponding to each stream file, and is used for characteristic point access when replaying the stream files.
Description
The application is to be dividing an application of October 16, application number in 1998 are 98124072.0, denomination of invention is " recording/replay device, method and recording medium " patented claim the applying date.
Technical field
The present invention relates to a kind of device and method for recording, a kind of device and method for replaying, a kind of device and method for recording/replay, a kind of recording medium and a kind of distribution media, relate more specifically to be suitable for recorded video signal and the vision signal of the record of replaying, the device and method for recording, for the device and method of replaying, for the device and method of recording/replay, recording medium and distribution media.The invention particularly relates to a kind for the treatment of apparatus and a kind of disposal route.
Background technology
Recently, DVD-RAM has been pushed out as recordable CD.This CD-R is pushed out as having the large-capacity storage media of some G bytes, and is hopeful as recording AV (can listen vision) signal as the medium of vision signal.
As the supply source that can be recorded in the digital AV signal in CD-R, now available is VHS or 8mm videotape and digital satellite broadcasting, can also obtain digital terrestrial television broadcast in the future.
The digital video signal being provided by these sources compresses according to MPEG (moving images expert group)-2 systems conventionally.Therefore, when the digital video signal being provided by this provenance is recorded in CD-R, according to the vision signal of MPEG-2 system compresses, first decoded, then according to MPEG-2 system coding and be recorded in CD-R.
But, this recorded video signal picture quality that comprises decoding, coding and produced subsequently variation in the processing of light disc recording.
In order to reduce picture quality variation, developed a kind of method, former this locality of bit stream of wherein supplying with is recorded in CD-R, and the compressed video signal being provided by source is not encoded and decoded.In other words, develop a kind of method that CD is used as to data stream recording body.
As above-mentioned do not encode and decode in the CD-R of recorded video signal the unmatchful bit stream that records make random-access management data.In detail, as in the CD of above-mentioned recorded video signal, record the management information that the set program of indication does not start sector position.Therefore, in the situation that as above-mentioned script record the CD from the bit stream in source, can not do random access to the vision signal of record, the great advantage of dish-type formula recording medium is restricted.
If recorded therein the CD of the bit stream that the simulating signal of input in pen recorder coding the is formed CD of the bit stream supplied by source that has been different from former local record therein, this recording/replay device result relates to the CD of two types, and this mechanism causes expensive.
Summary of the invention
The present invention makes in view of this problem, the object of the invention is, and provides the ability of the compressed video signal that record supplies with and not failure pattern image quality and vision signal access randomly that can be to record.
The invention provides a kind of pen recorder, comprising: scrambler, it is configured to encoded video and/or sound signal to generate stream file; Characteristic point information generating means, it is configured to generating feature dot information, described characteristic point information comprises the attribute information of the some streams, the identification information of each stream and each stream of corresponding each identification information that are used by program, described characteristic point information is included in the message file of corresponding each stream file, and is used to access each unique point when replaying described stream file; And pen recorder, it is configured in recording medium recorded stream file and the corresponding message file that comprises characteristic point information respectively.
The present invention also provides a kind of recording method, comprises the following steps: coding step, for encoded video and sound signal to generate stream file; Characteristic point information generating means step, the video or the sound signal generating feature dot information that are used to each stream file to comprise, described characteristic point information comprises the attribute information of the some streams, the identification information of each stream and each stream of corresponding each identification information that are used by program, described characteristic point information is included in the message file of corresponding each stream file, and is used to access each unique point when replaying described stream file; And recording step, at recording medium recorded stream file and the corresponding message file that comprises characteristic point information respectively.
The present invention also provides a kind of replay device, comprising: replay unit, is configured to replay and is recorded in the stream file that comprises video and/or audio signal and the corresponding message file on recording medium; Characteristic point information replay device, be configured to generating feature dot information from the message file of corresponding each stream, described characteristic point information comprises the attribute information of the some streams, the identification information of each stream and each stream of corresponding each identification information that are used by program, and described characteristic point information is relevant to the position separately of characteristic point information; And controller, be configured to the characteristic point information replayed the message file based on from corresponding, control the replay of described stream file.
The present invention also provides a kind of rebroadcasting method, comprises the following steps: replay step, is recorded in the stream file that comprises video and/or audio signal and corresponding message file on recording medium for replaying; Characteristic point information replay step, for the message file generating feature dot information from corresponding each stream, described characteristic point information comprises the attribute information of the some streams, the identification information of each stream and each stream of corresponding each identification information that are used by program, and described characteristic point information is relevant to the position separately of characteristic point information; And control step, for the characteristic point information based on replaying from corresponding message file, control the replay of described stream file.
The present invention also provides a kind of circuit for pen recorder, comprising: input end, for receiving compressed video signal; Decoding circuit, for the described compressed video signal of decoding; Characteristic point information produces circuit, for generation of characteristic point information; And treating apparatus, for combining described compressed video signal and described characteristic point information.
The present invention also provides a kind of data processing method for pen recorder, comprising: input step, for receiving compressed video signal; Decoding step, for the described compressed video signal of decoding; Characteristic point information produces step, for generation of characteristic point information; And treatment step, for combining described compressed video signal and described characteristic point information.
According to an aspect of the present invention, provide a kind of pen recorder, it has: file generation device, for generation of the file that comprises video or sound signal; Characteristic point information generating means, for producing the video that comprises hereof or the characteristic point information of sound signal to each file being occurred by file generating means; And pen recorder, at recording medium log file and characteristic point information.
According to a further aspect in the invention, provide a kind of recording method, it comprises: file generation step, for generation of the file that comprises video or sound signal; Characteristic point information generation step, for producing the video that comprises hereof or the characteristic point information of sound signal to each file being occurred by file generation step; And recording step, at recording medium log file and characteristic point information.
According to a further aspect in the invention, a kind of distribution media for allocator is provided, this program can be read with control information treating apparatus and carry out following processing by computing machine, comprising: file generation step, for generation of the file that comprises video or sound signal; Characteristic point information generation step, for producing the video that comprises hereof or the characteristic point information of sound signal to each file being occurred by file generation step; And recording step, at recording medium log file and characteristic point information.
According to a further aspect in the invention, provide a kind of replay device, it has: file replay device, is recorded in the file that comprises video or sound signal of recording medium for replaying; Characteristic point information replay device, is included in video in the file that is recorded in recording medium or the characteristic point information of sound signal for each file of being replayed by file replay device is replayed; And replay control device, the replay of the characteristic point information control documents of being replayed by characteristic point information replay device for basis.
According to a further aspect in the invention, a kind of rebroadcasting method comprises: file replay step, is recorded in the file that comprises video or sound signal of recording medium for replaying; Characteristic point information replay step, for replaying and be included in the characteristic point information of the audio or video signal in the file being recorded in recording medium each file of replaying in file replay step; And replay and control step, the replay of the characteristic point information control documents of replaying in characteristic point information replay step for basis.
According to a further aspect in the invention, a kind of distribution media for allocator is provided, this program can be read with control information treating apparatus and carry out following processing by computing machine, comprising: file replay step, is recorded in the file that comprises video or sound signal of recording medium for replaying; Characteristic point information replay step, for replaying and be included in the characteristic point information of the audio or video signal in the file being recorded in recording medium each file of replaying in file replay step; And replay and control step, the replay of the characteristic point information control documents of replaying in characteristic point information replay step for basis.
According to a further aspect in the invention, provide a kind of pen recorder, it has input media, for receiving the input signal that at least comprises vision signal; Characteristic point information pick-up unit, for according to being included in the characteristic point information of the input vision signal of input signal; Video signal recording apparatus, for the vision signal in recording medium at least records each signal being included in input signal; And characteristic point information write device, for writing characteristic point information at recording medium.
According to a further aspect in the invention, a kind of recording method comprises: input step, for receiving the input signal that at least comprises vision signal; Characteristic point information detecting step, for according to being included in the characteristic point information of the input vision signal of input signal; Video signal recording step, for the vision signal in recording medium at least records each signal being included in input signal; And characteristic point information writes step, for writing characteristic point information at recording medium.
According to a further aspect in the invention, provide a kind of distribution media for allocator, this program can be read with control information treating apparatus and carry out following processing by computing machine, comprising: input step, for receiving the input signal that at least comprises vision signal; Characteristic point information detecting step, for according to being included in the characteristic point information of the input vision signal of input signal; Video signal recording step, for the vision signal in recording medium at least records each signal being included in input signal; And characteristic point information writes step, for writing characteristic point information at recording medium.
According to a further aspect in the invention, be provided with a kind of recording/replay device, it has: file generation device, for generation of the file that comprises video or sound signal; Characteristic point information generating means, for producing the video that comprises hereof or the characteristic point information of sound signal to each file being occurred by file generating means; Pen recorder, at recording medium log file and characteristic point information; File replay device, is recorded in the file that comprises video or sound signal of recording medium for replaying; Characteristic point information replay device, is included in video in the file that is recorded in recording medium or the characteristic point information of sound signal for each file of being replayed by file replay device is replayed; And replay control device, the replay of the characteristic point information control documents of being replayed by characteristic point information replay device for basis.
According to a further aspect in the invention, a kind of recording/replay method comprises: file generation step, for generation of the file that comprises video or sound signal; Characteristic point information generation step, for producing the video that comprises hereof or the characteristic point information of sound signal to each file being occurred by file generation step; Recording step, at recording medium log file and characteristic point information; File replay step, is recorded in the file that comprises video or sound signal of recording medium for replaying; Characteristic point information replay step, for replaying and be included in the characteristic point information of the audio or video signal in the file being recorded in recording medium at each file that file replay step is replayed; And replay and control step, the replay of the characteristic point information control documents of replaying in characteristic point information replay step for basis.
According to a further aspect in the invention, a kind of distribution media for allocator is provided, this program can be read with control information treating apparatus and carry out following processing by computing machine, comprising: file generation step, for generation of the file that comprises video or sound signal; Characteristic point information generation step, for producing the video that comprises hereof or the characteristic point information of sound signal to each file being occurred by file generation step; Recording step, at recording medium log file and characteristic point information; File replay step, is recorded in the file that comprises video or sound signal of recording medium for replaying; Characteristic point information replay step, for replaying and be included in the characteristic point information of the audio or video signal in the file being recorded in recording medium at each file that file replay step is replayed; And replay and control step, the replay of the characteristic point information control documents of replaying in characteristic point information replay step for basis.
In the distribution media of the recording method of describing according to the pen recorder of one aspect of the invention, claim 5 and claim 6 description, the characteristic point information for each file of the video in file or sound signal is recorded in recording medium.
In replay device according to a further aspect of the invention, rebroadcasting method and distribution media according to a further aspect of the invention according to a further aspect of the invention, according to being recorded in the replay that carrys out control documents in recording medium for the characteristic point information of each file.
In pen recorder according to a further aspect of the invention, recording method and distribution media according to a further aspect of the invention according to a further aspect of the invention, will the characteristic point information of vision signal be detected and it is recorded in recording medium together with vision signal.
In recording/replay device according to a further aspect of the invention, recording/replay method and distribution media according to a further aspect of the invention according to a further aspect of the invention, the characteristic point information of file and each file is recorded in recording medium.The replay of file is correspondingly controlled according to the characteristic point information of replaying.
Accompanying drawing explanation
Fig. 1 is the diagram of describing bibliographic structure;
Fig. 2 is the diagram of describing VOLUME.TOC;
Fig. 3 is the diagram of describing volume_information () (volume information ());
Fig. 4 is the diagram of describing volume_attribute () (Volume Properties ());
Fig. 5 is the diagram of describing resume () (recovering ());
Fig. 6 is the diagram of describing volume_rating () (volume ratings ());
Fig. 7 is the diagram of describing write_protect () (write-protect ());
Fig. 8 is the diagram of describing play_protect () (playing protection ());
Fig. 9 is the diagram of describing recording_timer () (recording timing device ());
Figure 10 is the diagram of describing text_block () (text block ());
Figure 11 is the diagram of describing language_set () (language setting ());
Figure 12 is the diagram of describing text_item () (text items ());
Figure 13 is the diagram of describing ALBUM.STR.;
Figure 14 is the diagram of describing album () (atlas ());
Figure 15 is the diagram of describing TITLE_###VDR;
Figure 16 is the diagram of describing title_info () (heading message ());
Figure 17 is the diagram of describing PROGRAM_ $ $ $ .PGI;
Figure 18 is the diagram of describing program () (program ());
Figure 19 is the diagram of describing play_list () (playlist ());
Figure 20 is the diagram of describing play_item () (playing ());
Figure 21 is the diagram of describing CHUNKGROUP_###.CGIT;
Figure 22 is the diagram of describing chunk_connection_info () (chunk link information ());
Figure 23 is the diagram of describing chunk_arrangement_info () (chunk placement information ());
Figure 24 is the diagram of describing CHUNK_%%%%.ABST;
Figure 25 A and 25B are the block diagrams of describing an application optical disc apparatus demonstration structure of the present invention;
Figure 26 is the diagram of describing bibliographic structure;
Figure 27 is the diagram of describing catalogue logical organization;
Figure 28 is the diagram of describing biasing;
Figure 29 is the diagram of describing bibliographic structure;
Figure 30 is the diagram of describing bibliographic structure;
Figure 31 is the diagram of describing catalogue logical organization;
Figure 32 is the diagram of describing bibliographic structure;
Figure 33 is the diagram of describing bibliographic structure;
Figure 34 is the diagram of describing catalogue logical organization;
Figure 35 means the diagram of catalogue logical organization;
Figure 36 A and 36B mean the block diagram of another structure example of optical disc apparatus of the present invention;
Figure 37 A and 37B are the process flow diagrams of the accumulation of Expressive Features dot information and logging program;
Figure 38 is the diagram of describing field_type_id (field type identifier);
Figure 39 is the diagram of describing info_type (information type);
Figure 40 is the diagram of describing cognizant_recording_indicator (identification _ record _ designator);
Figure 41 is the diagram of describing slot_unit_type (groove cell type);
Figure 42 is the diagram of describing bitstream_attribute () (bit stream attribute ());
Figure 43 is the diagram of describing bitstream_attribute_id (bit stream Attribute Recognition);
Figure 44 is the diagram of describing attribute_type (attribute type);
Figure 45 is the diagram of describing video_attribute () (video attribute ());
Figure 46 is the diagram of describing input_video_source (input video source);
Figure 47 is the diagram of describing video_compression_mode (video compress mode);
Figure 48 is the diagram of describing picture_rate (image rate);
Figure 49 is the diagram of describing picture_scan_type (image scanning type);
Figure 50 is the diagram of describing vertical_lines (vertical row);
Figure 51 is the diagram of describing aspect_ratio (length breadth ratio);
Figure 52 is the diagram of describing pixel_ratio (pixel ratio);
Figure 53 is the diagram of describing cc_existance (cc existence);
Figure 54 is the diagram of describing recording_mode (recording mode);
Figure 55 is the diagram of describing Syntax of audio_attribute (grammer () of audio attribute);
Figure 56 is the diagram of describing input_source (input source);
Figure 57 is the diagram of describing audio_coding_mode (audio coding mode);
Figure 58 is the diagram of describing bitrate (bit rate);
Figure 59 is the diagram of describing q_bit (q position);
Figure 60 is the diagram of describing fs;
Figure 61 is the diagram of describing emphasis (increasing the weight of);
Figure 62 is the diagram of describing Syntax of slot_info (groove information grammer);
Figure 63 is the diagram of describing slot_info_id (identification of groove information);
Figure 64 is the diagram of describing slot_info_for_one_GOP () (for the groove information () of a GOP);
Figure 65 is the diagram of describing first_presented_picture_structure (first showing picture structure);
Figure 66 is the diagram of describing picture_count_type (picture count type);
Figure 67 is the diagram of describing syntax of slot_info_for_one_audio_frame () (for the groove information grammer () of an audio frame);
Figure 68 is the diagram of describing syntax of slot_info_for_one_time_slot () (for the groove information grammer of a time slot).
Embodiment
Below will describe embodiments of the invention in detail, in order clearly to point out the relation between parts in related device and the following stated embodiment in the claims, described in each embodiment (by an example only) and be indicated on corresponding to the parts that install described in claim in the bracket after following each device.These expressions not make device be limited in the example described in bracket.
Described pen recorder is provided with: file generating means (for example step S6 in Figure 37), for generation of the file that comprises video or sound signal; Characteristic point information generating means (for example step S7 in Figure 37), for producing the video that comprises hereof or the characteristic point information of sound signal to each file being occurred by file generating means; And pen recorder (for example step S13 in Figure 37), at recording medium log file and characteristic point information.
Described replay device is provided with: file replay device (for example replay circuit 60 in Figure 36), is recorded in the file that comprises video or sound signal of recording medium for replaying; Characteristic point information replay device (for example replay circuit 60 in Figure 36), is included in video in the file that is recorded in recording medium or the characteristic point information of sound signal for each file of being replayed by file replay device is replayed; And replay control device (for example control circuit 63 in Figure 36), the replay of the characteristic point information control documents of replaying at characteristic point information replay device for basis.
Described pen recorder is provided with: input media (for example step S1 in Figure 37), for receiving the input signal that at least comprises vision signal; Characteristic point information pick-up unit (for example step S1 in Figure 37), for according to being included in the characteristic point information of the input vision signal of input signal; Video signal recording apparatus (for example step S6 in Figure 37), for the vision signal in recording medium at least records each signal being included in described input signal; And characteristic point information write device (for example step S13 in Figure 37), for writing characteristic point information at recording medium.
Described recording/replay device is provided with: file generation device (for example step S6 in Figure 37), for generation of the file that comprises video or sound signal; Characteristic point information generating means (for example step S7 in Figure 37), for producing the video that comprises hereof or the characteristic point information of sound signal to each file being occurred by file generating means; Pen recorder (for example step S13 in Figure 37), at recording medium log file and characteristic point information; File replay device, is recorded in the file that comprises video or sound signal of recording medium for replaying; Characteristic point information replay device (for example replay circuit 60 in Figure 36), is included in video in the file that is recorded in recording medium or the characteristic point information of sound signal for each file of being replayed by file replay device is replayed; And replay control device (for example control circuit 63 in Figure 36), the replay of the characteristic point information control documents of being replayed by characteristic point information replay device for basis.
First, describe in the present invention thereon/by the layout of file on recording/replay recording of information medium wherein.On this medium, as shown in fig. 1, record seven types of files as described below:
VOLUME.TOC
ALBUM.STR
PROGRAM_$$$.PGI
TITLE_###.VDR
CHUNKGROUP_.CGIT
CHUNK_％％％％.ABST
CHUNK_％％％％.MPEG2
VOLUME.TOC and ALBUM.STR are recorded in root directory.Record " PROGRAM_ $ $ $ .PGI " ($ $ $ represents program sequence number here) in the catalogue " PROGRAM " of record below root directory is tight.Similarly, record " TITLE_###.VDR " (" ### " represents heading order number here) in the catalogue " TITLE " of record below root directory is tight recorded " CHUNKGROUP_.CGIT " (" " represents chunk group sequence number) here and " in CHUNK, recorded " CHUNK_%%%%.ABST " (" %%%% " represents chunk sequence number) here in catalogue in catalogue " CHUNKGROUP ".
Below root directory is tight, in the MPEGAV catalogue of record, be additionally formed one or more sub-directories, record " CHUNK_%%%%.MPEG2 " (%%%% represents chunk sequence number) below this sub-directory here.
Conventionally, on medium, only there is a VOLUME.TOC file.But at special medium, as having, comprise in the medium of ROM and RAM mixed structure, on medium, can there are a plurality of VOLUME.TOC files.This document is used to refer to all features of medium.
The structure of VOLUME.TOC is illustrated in Fig. 2, and file_type_id (file type identifier) is recorded in head end, and its indication this document is VOLUME.TOC.Then, record volume_information () (volume information ()) and finally following text_block () (text block ()).
The structure of volume_information () is illustrated in Fig. 3.Volume_information () comprising: volume_attribute () (Volume Properties ()); resume () (recovering ()); volume_rating () (volume ratings ()); write_protect () (write-protect ()); play_protect () (playing protection ()), and recording_timer () (recording timing device ()).
Volume_attribute () is that its detailed structure is illustrated in Fig. 4 for recording the region of logical volume attribute.As shown in Figure 4, this district inclusion title_playback_mode_flag (title broadcast mode Q-character) and program_playback_mode_flag (program broadcast mode Q-character).
Resume () makes information current state on it return to the region of ejecting front state when medium is play again, and its detailed structure as shown in Figure 5.
In Fig. 3, volume_rating () makes information on it realize the region of volume spectators age limit entirely according to age and classification, and its detailed structure as shown in Figure 6.
Write_protect shown in Fig. 3 () is the region of having recorded the title of record in restriction volume and the information of program change and erasing operation thereon, and its detailed structure as shown in Figure 7.
Play_protect () shown in Fig. 3 is the region that on it, record is replayed and allows/not allowed to arrange the title that is recorded in volume and program or to limit the information of replay times, and its detailed structure as shown in Figure 8.
Recording_timer () shown in Fig. 3 is that on it, record is for controlling the region of the information of writing time, and its detailed structure as shown in Figure 9.
The detailed structure of the text_block () of VOLUME.TOC shown in Fig. 2 is illustrated in Figure 10.Text_block () comprises languasge_set () and text_item, and its detailed structure is illustrated respectively in Figure 11 and Figure 12.
Conventionally in recording medium, only there is a file ALBUM.STR as shown in Figure 1.But, at special medium, as comprise in the medium of ROM and RAM mixed structure on medium, thering are a plurality of ALBUM.STR files.With the file that a plurality of combination of media form, can be used to the structure that obtains as occur in a medium.
The structure of ALBUM.STR is illustrated in Figure 13.File_type_id is recorded in head end, and it represents that file is ALBUM.STR.Then record album (), finally record text_block ().
Album () is the region of having recorded on it as the information of one group of a plurality of volume (a plurality of medium) of processing, and its detailed structure is illustrated in Figure 14.
The document number of TITLE_###.VDR shown in Fig. 1 equals title number.A first melody on title (title) expression such as CD dish or a program in television broadcasting.The structure of these information is illustrated in Figure 15.File_type_id is recorded in head end, and this file_type_id indication this document is TITLE_###.VDR.Then record title_info and finally record text_block ().### is the character string that is used to indicate title number.
Title_info () is the region of recording initial point, terminal and other title attribute on it, and its detailed structure is illustrated in Figure 16.
The style number of the $ of PROGRAM_ shown in Fig. 1 $ $ .PGI equals program number.A program (program) comprises a plurality of sections of cutting, the subregion (or Zone Full) of its definition title, and each section of cutting is replayed with particular order.This message structure is illustrated on Figure 17.File_type_id is recorded in head end, and this file_type_id indication this document is PROGRAM_ $ $ $ .PGI.Then record program (), finally record text_block ().$ $ $ is number symbol string that is used to indicate title number.
Program is the region of replaying the essential information information needed of title on it in record set, there is no irreversible material editor, and its detailed structure as shown in figure 18.
Program () shown in Figure 18 has a play_list (playlist).The details table of this play_list () is shown in Figure 19.
In play_list, record a plurality of play_item () (playing ()).The detailed structure of this play_item () is illustrated in Figure 20.
CHUNKGROUP_CGIT document number shown in Fig. 1 equals chunk group number.Chunk group is the data structure of arranging bit stream.In user operation, for the device of recording/replay medium during as VDR (optic disk logging machine), this document is not recognized by the user yet.
The structure of this information is illustrated in Figure 21.File_type_id is recorded in head end, and this file_type_id indication this document is CHUNKGROUP_.CGIT.Then record chunkgroup_time_base_flag (base Q-character during chunk group) and chunkgroup_time_base_offset (base biasing during chunk group), record subsequently chunk_connection_info () (chunk link information ()), finally record text_block () (text block ()).
Chunkgroup_time_base_flag represents the Q-character of chunk group's reference count, and chunkgroup_time_base_offset represents the start time of reference time axle in chunk group.This value is set to the upwards counter of counting of a 90kHz, and there are 32 word lengths.Chunk_connection_info () is recording feature dot information on it, as the region of the synchronizing information between video transfer point and Audio and Video, its detailed structure is illustrated in Figure 22.
The cycle index of chunk_arrangement_info () is in chunk_connection_info (), and the period of chunk_arrangement_info () equals to belong to chunk group's chunk (chunk) number.The detailed structure of chunk_arrangement_info () is illustrated in Figure 23.
CHUNK_%%%%.ABST document number shown in Fig. 1 equals chunk number.Chunk is the message file corresponding to a stream file.The structure of this information is illustrated in Figure 24.File_type_id is recorded in head end, and file_type_id indication this document is CHUNK_%%%%.ABST.
CHUNK_%%%%.MPEG2 file shown in Fig. 1 is a stream file.This document comprises mpeg bit stream, and it is different from other only file of recorded information.
Figure 25 be one for or from the structure example of the optical disc apparatus of light disc recording or rebroadcast information, its CD is as having the medium of file as mentioned above.In this optical disc apparatus, for compact disc rocordable 1 relative set a series of bare headed 2, this shaven head 2 is common to that data are read and data are write.
By shaven head 2 bit streams of reading from CD 1, by RF and demodulation/modulation circuit 3 demodulation, in ECC circuit 4, accept error correction, and be sent to read-out channel impact damper 6 by switch 5, for absorbing the difference between read-out speed and decoding processing speed.The output of read-out channel impact damper 6 is provided for demoder 7.The structure of read-out channel impact damper 6 is such, and it can be by system controller 13 read and writes.
The bit stream of being supplied with by read-out channel impact damper 6 is decoded by demoder 7, and provides video and sound signal by demoder 7.The vision signal of being supplied with by demoder 7 is provided for combiner circuit 8, synthetic with the vision signal being provided by OSD (screen display) control circuit 9, then is offered unshowned in the drawings display and shown by output terminal P1.The sound signal being produced by demoder 7 is sent to unshowned in the drawings loudspeaker and broadcasts from output terminal P2.
On the other hand, the vision signal being provided by output terminal P3 and the sound signal being provided by output terminal P4 are encoded by scrambler 10, and send write access impact damper 11 to, for absorbing the difference between coding processing speed and writing speed.Write access impact damper 11 is also to form like this, by system controller 13 read and writes.
The data that are accumulated in write access impact damper 11 are read from this write access impact damper 11, by switch 5, supply with ECC circuit 4 to add error correcting code, and subsequently by RF and demodulation/modulation circuit 3 modulation.The signal (RF signal) being produced by RF and demodulation/modulation circuit 3 is write in CD 1 by shaven head 2.
Recorded information in address detection circuit 12 detection CDs 1 or the address information of track to be replayed.System controller 13 is controlled the operation of each parts of optical disc apparatus, and be provided with: for the CPU 21 of various controls, for storing the ROM 22 that treats the handling procedure carried out by CPU 21, for being temporarily stored in the RAM 23 of the data that treatment step produces, and to be recorded to CD 1 or from the RAM 24 of the various message files wherein replayed for storing.CPU 21 carries out the thin tuning of bare headed 2 positions according to the testing result being obtained by address detection circuit 12.The conversion of CPU 21 gauge tap 5.The input block 14 that comprises various Switches & buttons is operated by user when the various instruction of input.
Secondly, the basic read operation of descriptor file.For example, when " VOLUME.TOC " message file is read out, actual address and the actual address length on the CD 1 that has recorded " VOLUME.TOC " is thereon determined in the file system operation instruction that CPU 21 use of system controller 13 are included in handling procedure in advance.Then CPU 21 moves to shaven head 2 on reading location according to the address information of " VOLUME.TOC ".In read mode, CPU 21 controls shaven head 2, RF and demodulation/modulation circuit 3 and ECC circuit 4, and switch 5 is being transformed into read channel impact damper 6 sides, and further the position of thin tuning shaven head 2, then makes shaven head 2 start to read.Thus, by shaven head 2, read the content of " VOLUME.TOC ", by RF and demodulation/modulation circuit 3 demodulation, and do error correction by ECC circuit 4, and be accumulated in read channel impact damper 6.
When the data volume in being accumulated in read channel impact damper 6 becomes the scale that is equal to or greater than " VOLUME.TOC ", CPU 21 stops reading.Then, CPU 21 data that provided by read channel impact damper 6 is provided and it is recorded in RAM 24.
Then, the situation of reading " VOLUME.TOC " message file as essential information file write operation example is described.CPU 21 is used the file system operation instruction being included in advance in handling procedure to find a white space, and the scale that this white space has is equal to or greater than " VOLUME.TOC " in file system to be written in (CD 1), and determines its address.
Then, CPU 21 is sent to write access impact damper 11 by " VOLUME.TOC " that also will again write in RAM 24.Then, CPU 21 moves to writing position according to the address information of white space by shaven head 2.In WriteMode, CPU 21 controls shaven head 2, RF and demodulation/modulation circuit 3, and ECC circuit 4, and switch 5 is transformed into write access impact damper 11 sides, the position of thin tuning shaven head 2, and make subsequently shaven head 2 start to write.
The content of reading " VOLUME.TOC " that newly obtain from write access impact damper 11, offers ECC circuit 4 by switch 5, adds error correcting code, then by RF and modulation/demodulation circuit 3 modulation.The signal being produced by RF and modulation/demodulation circuit 3 is recorded on CD 1 by shaven head 2.When the data volume of record on CD 1 becomes the scale that equals " VOLUME.TOC ", CPU 21 stops write operation.
Finally, CPU rewrites the pointer of " VOLUME.TOC " in indication file system (CD 1) with the file system operation instruction being included in advance in handling procedure, to point out the position that newly writes.
Then, the situation that flows as shown in Figure 1 CHUNK_0001.MPEG2 as Basic Flow replay operational example is described.CPU 21 use are included in advance file system operation instruction in handling procedure and determine actual address on the CD 1 of record " CHUNK_0001.MPEG2 " and the length of this actual address.Then CPU 21 moves to reading location according to the address information of " CHUNK_0001.MPEG2 " by shaven head 2.In read mode, CPU 21 controls shaven head 2, RF and demodulation/modulation circuit 3 and ECC circuit 4, and switch 5 is transformed into read channel impact damper 6 sides, the position of thin tuning shaven head 2 and make shaven head 2 start to read.
Content by shaven head 2 " CHUNK_0001.MPEG2 " that read is accumulated in read channel impact damper 6 by RF and demodulation/modulation circuit 3, ECC circuit 4 and switch 5.The data that are accumulated in read channel impact damper 6 are provided for demoder 7 to accept decoding processing, produce respectively vision signal and sound signal.Sound signal generates from output terminal P1 by combiner circuit 8 from output terminal P2 generation and vision signal.
When data volume that read and decoded from CD 1, that show become equal " CHUNK_0001.MPEG2 " scale maybe when indicating the read operation stopping from input block 14, CPU 21 stops reading and the processing of decoding.
The situation that records the write information file " CHUNK_0001.MPEG2 " of operational example as Basic Flow is then described.CPU 21 use are included in advance file system operation instruction in handling procedure and find and have its scale and be equal to or greater than the white space of wanting " CHUNK_0001.MPEG2 " in writing in files system (CD 1), and determine its address.
The vision signal of being supplied with by input end P3 and the sound signal of being supplied with by input end P4 are encoded by scrambler 10, and are accumulated in write access impact damper 11.Then, CPU 21 moves to writing position according to white space address information by shaven head 2.In WriteMode, CPU 21 controls shaven head 2, RF and modulation/demodulation circuit 3, ECC circuit 4, and make subsequently shaven head 2 start to write.Thus, be that the content of new " CHUNK_0001.MPEG2 " is read from write access impact damper 11, and supplied with shaven head 2 via switch 5, ECC circuit 4 and RF and demodulation/modulation circuit 3, and be recorded in CD 1.
When reading and be recorded in data volume CD 1 from write access impact damper 11, become and equal the value of setting in advance or when input block 14 indications stop write operation, CPU 21 stops write operation.Finally, the pointer of indicating " CHUNK_0001.MPEG2 " in file system (CD 1) is rewritten in the file system operation instruction that CPU 21 use are included in handling procedure in advance, to indicate the position newly writing.
Supposition now, message file and stream file are recorded on CD 1 as shown in Figure 26.In this embodiment, comprise a program file, its name is called " PROGRAM_001.PGI ".In this CD 1, comprise name and be called " TITLE_001.VDR ", " TITLE_002.VDR ", and three heading files of " TITLE_003.VDR ".
In addition, in CD 1, comprise two files in a chunkgroup (chunk group) who is called " CHUNKGROUP_001.CGIT " and " CHUNKGROUP_002.CGIT ".In addition, in CD 1, comprise name and be called " CHUNK_0001.MPEG2 ", three stream files of " CHUNK_0011.MPEG2 " and " CHUNK_0012.MPEG2 ", and in CD 1, recorded name and be called " CHUNK_0001.ABST ", " CHUNK_0011.ABST ", and the corresponding information file of " CHUNK_0012.ABST ".
The logical organization with the CD 1 of message file shown in Figure 26 and stream file is illustrated in Figure 27.In this embodiment, respectively, chunk (chunk) message file " CHUNK_0001.ABST " specified flow file " CHUNK_0001.MPEG2 ", chunk message file " CHUNK_0011.ABST " specified flow file " CHUNK_0011.MPEG2 ", and chunk message file " CHUNK_0012.ABST " specified flow file " CHUNK_0012.MPEG2 ".At length, to be defined in the field shown in Figure 24 be in the chunk_file_id in CHUNK_%%%%.ABST to stream file ID.
In addition, in this embodiment respectively, chunkgroup message file " CHUNKGROUP_001.CGIT " regulation chunk message file " CHUNK_0001 ABST ", and chunkgroup message file " CHUNKGROUP_002.CGIT " regulation chunk message file " CHUNK_0011.ABST " and " CHUNK_0012.ABST ".At length, to be defined in the field in the chunk_arrangement_info_info () shown in Figure 13 be in chunk_info_file_id to chunk message file ID.Chunk_arrangement_info () is recorded in chunkgroup message file, the number of chunk_arrangement_info () equals to belong to the number (chunk_arrangement_info () shown in Figure 23 is described in the chunk_connection_info () shown in Figure 22, and chunk_connection_info () is described in CHUNKGROUP_###.CGIT) of the chunk of this chunkgroup.
In CHUNKGROUP_001, only there is a chunk_arrangement_info (), and the regulation of chunk_info_file_id wherein CHUNK_0001.In CHUNKGROUP_002, there are two chunk_arrangement_info (), wherein separate provision CHUNK_0011 and CHUNK_0012.For processing this situation, chunkgroup can stipulate the replay order of a plurality of chunk.
At length, first, the clock initial value in this chunkgroup is determined with the chunkgroup_time_base_offset in the CHUNKGROUP_###.CGIT shown in Figure 21.Then, when each chunk is deposited, stipulate presentation_start_cg_count (showing initial chunk group time counting) and presentation_end_cg_time_count (show and finish chunk group time counting) in the chunk_arrangement_info () shown in Figure 23.
For example, as shown in Figure 28, suppose that the length (time) of CHUNK_0011 is A, and the length of CHUNK_0012 (time) is B.The presentation_start_cg_count of CHUNK_0011 equals chunkgroup_time_base_offset, and presentation_end_cg_count equals chunk_group_time_base_offset+A.The presentation_start_cg_count of CHUNK_0012 equals chunkgroup_time_base_offset+A, and presentation_end_cg_count equals chunkgroup_time_base_offset+A+B.Suppose as mentioned above, CHUNKGROUP_002 is defined as it and is formed by replay continuously CHUNK_0011 and CHUNK_0012.
In the situation that in the replay time, CHUNK_0011 and CHUNK_0012 are overlapped, this time can be defined as removable.In addition,, while writing transition_info () (transitional information ()) in the chunk_arrangement_info () shown in Figure 23, can flow through and stipulate special effect (crescendo, diminuendo show and eliminate) while crossing at two.
In the example of Figure 26 (Figure 27), respectively, heading message file " TITLE_001.VDR " and " TITLE_002.VDR " indication chunkgroup message file " CHUNKGROUP_001.CGIT ", and heading message file " TITLE_003.VDR " indication chunkgroup message file " CHUNKGROUP_002.CGIT ".In detail, in the title_info () shown in Figure 16, field cgit_file_id regulation for chunkgroup file ID, stipulates that in chunkgroup the field title_start_chunk_group_time_stamp for time range (start of header chunk group time mark) of this title and title_end_chunk_group_time_stamp (title finishes chunk group time mark) stipulate.
For example, in the example shown in Figure 27, the later half of first half and the TITLE_002 indication CHUNKGROUP_001 of TITLE_001 indication CHUNKGROUP_001.This division response user's request is carried out, and divides position and is arbitrarily made by user, can not be determined in advance.Here supposition, the position of being divided by TITLE_001 and TITLE_002 is provided in a side of on the position A that leaves CHUNKGROUP_001 head end.
TITLE_001 regulation CHUNKGROUP_001 is chunkgroup, the start time that the start time of regulation CHUNKGROUP_001 is title, and by user-defined time point the end time as title.
In other words, the chunkgroup_time_base_offset of CHUNKGROUP_001 (head end position) is set as the title_start_chunk_group_time_stamp of TITLE_001, and chunkgroup_time_base_offset+ length A is set as the title_end_chunk_group_time_stamp of TITLE_001.
TITLE_002 regulation CHUNKGROUP_001 is chunkgroup, the start time that is title by user-defined time point, the end time that the end time of CHUNKGROUP_001 is title.
The title_end_chunk_group_time_stamp of CHUNKGROUP_001 (head end position) adds that length A is set as the title_start_chunk_group_time_stamp of TITLE_002, and the chunkgroup_time_base_offset of CHUNKGROUP_001 adds that the length of CHUNKGROUP_001 is set as the title_end_chunk_group_time_stamp of TITLE_002.
In addition, TITLE_003 regulation CHUNKGROUP_002 is chunkgroup, and the start time of regulation CHUNKGROUP_002 is time start of header, and the end time of regulation CHUNKGROUP_002 is the title end time.
In other words, chunkgroup_time_base_offset is set as the title_start_chunk_group_time_stamp of TITLE_003, and the chunkgroup_time_base_offset of CHUNKGROUP_002 adds that the length of CHUNKGROUP is set as the title_end_chunk_group_time_stamp of TITLE_003.
In addition, in this embodiment, program information file " PROGRAM_001.PGI " is stipulated order replay TITLE_001 part and TITLE_003 part according to this.At length, title is that the title number (title_number) in play_time shown in Figure 20 () (reproduction time ()) is stipulated, the time rule starting point and the terminal that by each title, are limited, extract the section of cutting thus.A plurality of sections of cutting constitute a program.
Then, be described in the operation of addition record in CD 1 (append recording) fresh information.In detail, this record is by the operation indication optical disk device recording of input block 14 being carried out with time recording or by user in real time.In rear kind of situation, if record button is pressed, records finish time and can not be estimated, still, if what press is single button that touches writing function (recording the function of certain hour after operation), the end time can be expected.
Here, time recording is described as an example.In this example, the user who supposes optical disc apparatus is the designated recorder start time in advance, end of record time, the bit rate of bit stream, and channel to be recorded.In addition, suppose, be to have residue available corresponding to the blank capacity of bit rate and writing time on CD 1, on this time point of being preengage at record, is identified.
While being additionally recorded on CD 1 between the true record time in some information at recording reservation time and reservation recording, can not guarantee the capacity with predetermined bits speed record.In the case, CPU 21 is controlled, so that bit rate is reduced to the value lower than setting, and record is corresponding to the information of subscription time, or bit rate do not change, and record is corresponding to the information of recordable time.Certainly, CPU 21 produces message to tell the situation of the time point that may unsuccessfully occur in user record additional information and reservation recording.
When approaching the start time of reservation recording, CPU 21 is automatically used the interior timer of machine and clock to return to mode of operation from sleep mode.CPU 21 use are included in advance file system operation instruction in handling procedure and guarantee that region on CD 1 is enough for reservation recording.In detail, by the result (writing time) that is subtracted to its start time the reservation recording termination time, be multiplied by the value that bit rate forms, corresponding to the required region scale of recording reservation program, first CPU 21 guarantees the region of this scale.Another way is, in the situation that need to record the message file except stream file while recording, for example, when heading message file need record as new title, need to guarantee that the capacity on CD 1 enough records these message files.If can not guarantee enough regions, can select any said method (bit rate changes, only at recordable time record).
At this moment, because be the record with new title, user is referred to as the new stream file in new stream catalogue to the stream file name that makes new advances.Here supposition, it is: $MPEGAV$STREAMS_003$CHUNK_0031.In detail, under root directory, MPEGAV catalogue, STREAM_003 catalogue as shown in Figure 29, provide the filename of CHUNK_0031.MPEG2.
CPU 21 instruction corresponding units executive logging modes.For example, from accompanying drawing, unshowned tuner is supplied with vision signal input end P3 and sound signal is supplied with to input end P4, and they are encoded by scrambler 10, and accumulation in write access impact damper 11.Then, CPU 21 moves to writing position according to the address information in the region drawing in advance by shaven head 2.In WriteMode, CPU 21 controls shaven head 2, RF and modulation/demodulation circuit 3 and ECC circuit 4, and switch 5 is transformed into write access impact damper 11 sides, the position of thin tuning shaven head 2, then make shaven head 2 start to write.Thus, the content of new " CHUNK_0031.MPEG2 " preparing is read out from write access impact damper 11, and is recorded in CD 1 by switch 5, ECC circuit 4, RF and demodulation/modulation circuit 3 and shaven head 2.
Above-mentioned write operation is proceeded, and below occurring, during arbitrary state, CPU 21 stops writing:
1) time arrives the end time of reservation recording;
2) due to lack capacity and in addition reason can not on CD 1, continue record;
3) produce the instruction that stops record operation.
Then CPU 21 is rewritten into by the pointer of indicating " CHUNK_0031.MPEG2 " in file system the value that indication writes new pointer position.In addition, CPU 21 prepares following file: chunk information, chunkgroup information and title information, and provide respective name and store them.When record or reservation, need on CD 1, guarantee to obtain enough recording the blank capacity of this file.
As mentioned above, new file is generated, for example, and as shown in figure 30.The current file producing of file name indication in the upper right corner in the figure, with asterisk (*).
Figure 31 represents the mutual relationship of the message file of each new formation.TITLE_004 stipulates CHUNKGROUP_003, and CHUNKGROUP_003 stipulates CHUNK_0031, and CHUNK_0031 regulation STREAM_0031.
At length, new stream is deposited with message file as in TITLE_004.User can identify the attribute of TITLE_004 by the function of confirmation optical disc apparatus title, and the TITLE_004 that can replay.
The operation of rewriting CD 1 record as shown in Figure 26 (Figure 27) then, is described.Rewriting record is the operation (at this moment, existing program being erased) of recording new program on recorded program, as the situation of tracer signal on videotape.
In rewriting record, the position of rewriting start-of-record is very important.For example, suppose that user points out to start to rewrite record from the head end of TITLE_001.At this moment, rewriting record carries out to rewrite TITLE_001, TITLE_002 and the such order of TITLE_003.If record operation does not also finish when TITLE_003 is rewritten to tail end, from the white space of CD 1, obtain new region and continue record.For example, if TITLE_002 is record start position, when the operation of this record, do not rewrite TITLE_002 because TITLE_001 be positioned at record start position before.
Supposition is now rewritten record and is started to carry out from TITLE_003 head end by time recording.In the case, suppose that optical disc apparatus user has predetermined start-of-record time and end time, the bit rate of bit stream and passage to be recorded.In addition, suppose and stipulated that the head end of TITLE_003 is record start position, this is important when rewriting is recorded.In addition, suppose in the case, when record is preengage, just confirmed for bit rate in advance and had enough recording capacities writing time.In the situation that rewriting record, the blank capacity sum of the total volume of rewritable after assigned position (a plurality of) title and CD is can recording capacity.In other words, in the case, for the STREAM_0011 of TITLE_003 management flow and the total volume of STREAM_0012 and the blank capacity sum of CD 1 are can recording capacity.
When rewriting is recorded, the order of preference of stream record in can recording capacity is had to some selections.First method is wherein to flow order by the method for header specifies.At length, in the case, record from the head end of STREAM_0011, and when STREAM_0011 is recorded to tail end, from head end, record STREAM_0012, and when STREAM_0012 is recorded to tail end, information will be recorded in white space.Other method is first to record white space, and is recorded when full when all white spaces, then records existing stream.
In view of imitating videotape, last method has advantage.In other words, the feature of the method is user's easy to understand, because this is the operation identical with the operation of videotape.Being characterized as of a rear method, the method is excellent to protection recorded information, because existing record stream is erased rear.
The in the situation that of carrying out addition record between time when the time when recording reservation is set and reservation recording are truly carried out in CD 1, perhaps can not guarantee the capacity with predetermined bits speed recording reservation program.In the case, in the same manner as described above, bit rate automatically reduce and on subscription time executive logging, or, holding position speed executive logging unchangeably in the available time.
When approaching the start time of subscription time, optical disc apparatus returns to mode of operation from sleep mode.CPU 21 obtains all blank capacity in CD 1.Certainly, blank capacity can be obtained when needed, rather than this time inscribe and obtain blank capacity, but here for illustration purpose, suppose that desired zone obtains before start-of-record.
In the situation that know required posting field scale according to start time, end time and the bit rate stipulated by time recording, can obtain desired volume (or thering is some additional margin).When needs records for example for record message file time, heading message file is necessary, because information is deposited as new title, needs to obtain the capacity of recorded information file.
Here, using file name, the new stream file in new stream catalogue is given new stream file.In detail, the file name of Fu Yu $MPEGAV$STRAEMS_002$CHUNK_0031.In detail shown in figure 32, file is named as the CHUNK_0031.MPEG2 below root directory, MPEGAV catalogue and STREAM_002 catalogue.
The sound signal of the vision signal of supply input end P3 and supply input end P4 is encoded by scrambler 10, and is accumulated in write access impact damper 11.Then, CPU 21 moves on to shaven head 2 in writing position according to the address information in the region of being obtained in advance.In WriteMode, CPU 21 controls shaven head 2, RF and demodulation/modulation circuit 3, ECC circuit 4 and switch 5 is transformed into write access impact damper 11 sides, and the position of thin tuning shaven head 2, then makes shaven head 2 start to write.Thus, from write access impact damper 11, read the content of the CHUNK_0031.MPEG2 of new preparation, and be recorded on CD 1 by switch 5, ECC circuit 4, RF and demodulation/modulation circuit 3 and shaven head 2.
At this moment, first-class file " CHUNK_0011.MPEG2 " is rewritten.When the tail end of " CHUNK_0011.MPEG2 " carried out in record, then record proceeds to " CHUNK_0012.MPEG2 ", and proceeds to CHUNK_0031.MPEG2 again.
CPU 21 carries out aforesaid operations continuously, and as in these cases, when any of this three states occurs, CPU 21 stops writing.
Then, stream file is upgraded in the file system operation instruction that CPU 21 use are included in handling procedure in advance, chunk information, chunkgroup information, and title information.
File structure depends on writes stop timing.For example, at two streams, be CHUNK_0011.MPEG2 and CHUNK_0012.MPEG2 skipped and follow continuous recording CHUNK_0031.MPEG2 completely in the situation that, the file structure in CD 1 is as shown in figure 33.These files indicated in the asterisk in the file name upper right corner (*) is files of new record.
Figure 34 represents the relation between each file (file in Figure 33) as above-mentioned record.Compare with Figure 31, in the CHUNK comprising at the CHUNKGROUP_002 of TITLE_003 regulation, increased CHUNK_0031, and CHUNK_0031 regulation STREAM_0031.
On the other hand, the in the situation that of rewriting end of record (EOR) in the middle of existing stream is rewritten, for example, rewriting end of record (EOR) in the situation that the centre of CHUNK_0011 record discharges acquired rewriting CHUNK_0031 stream, because without rewriting.In the case, carrying out special title processes.In detail, in the situation that rewriting record starts and finish therebetween from TITLE_003 head end, divide at that point title.As shown in Figure 35, the region from rewriting record start position to end position is comprised in new TITLE_003, and back region (remaining area of original TITLE_003) is comprised in TITLE_004.
Then, the operation that title is replayed is described.Suppose to there is the CD 1 of file as shown in figure 26 and be inserted in optical disc apparatus 1 with replay title.First, when CD 1 is inserted into, CPU 21 reads the message file on CD 1, and they are stored in RAM 24.This operation is to carry out by repeating the read operation of above-mentioned essential information file.
First CPU 21 reads VOLUME.TOC and ALBUM.STR.Then, 21 pairs of catalogues of CPU " TITLE " have the number of files counting of extended code identifier " VDR " below.Each file with this extended code identifier is the file that comprises heading message, and number of files equals title number.In Figure 26 institute example, title number is 3.Then, CPU 21 reads these three heading message files and they is stored in RAM 24.
CPU 21 controls osd control circuits 9 and is used to indicate to produce the character information that is recorded in the heading message on CD 1, and this character information combines in combiner circuit 8 with vision signal, and makes composite signal offer display from output terminal P1, for demonstration.In the case, there are three titles, demonstrate length and the attribute (title, data and writing time) of these three corresponding titles.
Here, suppose the replay of user's regulation TITLE_002.In the message file of TITLE_002, (in the cgit_file_id in title_info shown in Figure 16 ()) record is for stipulating the file ID of CHUNKGROUP_001, and CPU 21 is by this document and also CHUNKGROUP_001 is stored in RAM 24.
Then, which CHUNK start time and the end time (title_start_chunk_group_time_stamp in title_info shown in Figure 16 () and title_end_chunk_group_time_stamp) of CPU 21 check TITLE_002 correspond respectively to.This check is that the information (presentation_start_cg_time_count in chunk_arrangement_info shown in Figure 23 () and presentation_end_cg_time_count) by wherein depositing CHUNK is carried out.In the case, as shown in figure 27, can be regarded as, the start time of TITLE_002 is included in the middle of CHUNK_0001.In other words, can be regarded as, for from head end replay TITLE_002, this replay can be from the middle of stream file " CHUNK_0001.MPEG2 ".
Then, the position in CPU 21 checks and the corresponding stream of TITLE_002 head end.In detail, the start time of TITLE_002 is calculated, it is corresponding to how many offset times (time mark) in stream, and then with the characteristic point information in CHUNK file, stipulates to be positioned at the replay starting point of start time before tight.Thus, just determined the offset distance apart from replay starting point file head end.
Then, the actual address in the definite CD 1 of CPU 21 and the length of this actual address, wherein used the file system operation instruction that comprises in advance handling procedure to record " CHUNK_0001.MPEG2 ".In addition, the biasing address of the replay starting point just having obtained is added on this address, and finally determines the address of TITLE_002 replay starting point.
Then, CPU 21 makes shaven head 2 move on to read-out position according to the address information of " CHUNK_0001.MPEG2 ".In playback mode, CPU 21 controls shaven head 2, RF and demodulation/modulation circuit 3, ECC circuit 4, and switch 5 is transformed into read-out channel impact damper 6 sides, the position of thin tuning shaven head 2, then makes shaven head 2 start to read.Thus, make the content of " CHUNK_0001.MPEG2 " be accumulated in read-out channel impact damper 6.
The data that are accumulated in read-out channel impact damper 6 are fed into demoder 7 to decode, and produce vision signal and sound signal.When from CD 1, read, and data volume decoded and that show while becoming the scale that equals " CHUNK_0001.MPEG2 ", CPU 21 is switched to the replay of TITLE_003.The replay operation of TITLE_003 is to operate identical operation with the replay of TITLE_002.
When the title of depositing is replayed completely or when read operation is instructed to stop, stopping reading and decode operation.
When new building is inserted into optical disc apparatus or when the dish of different-format is inserted into as CD 1, once CD inserts, CPU 21 attempts to read VOLUME.TOC and ALBUM.STR, but in dish without this file.In the case,, in the situation that VOLUME.TOC and ALBUM.STR can not be read out, CPU 21 produces a message, request user's indication.User will indicate the arbitrary operation of CPU 21:, eject CD 1 (for example, in the situation that this dish is different-format), initialization (for example, the in the situation that of same format new building), and for example, by any program recovery data (, at dish for same format but data destroyed in the situation that).
The second input end 53 receives according to the compressed video signal of MPEG2 system compresses from for example digital satellite broadcasting receiving trap 72.The compressed video signal of supplying with the second input end 53 is used secret key code descrambling by descrambling circuit 55.The compressed video signal of descrambling is provided for multiplex electronics 58.The compressed digital video signals of descrambling also offers mpeg decoder 56, accepts therein extension process, and supply characteristic point testing circuit 57.
When providing while not compressing baseband video signal, feature point detection circuit 57 detects from the characteristic point information of vision signal and produces characteristic point file.
Here, the unique point of vision signal is defined as the stem anchor point for the replay of vision signal or editor, for example, and scene conversion frame, or be positioned at that program starts or the frame of end point.This unique point can be first image or the I image of GOP in MPEG, or has the frame that volume is greater than certain value or is less than certain value (large volume or quiet).When the GOP in using MPEG and volume detected characteristics point, information needed is offered to feature point detection circuit 57.
In characteristic point file, comprised the information that makes above-mentioned unique point type relevant to unique point record position in CD 71.In CD 71, the record position of unique point is for example sevtor address.
Another way is that unique point also can be stipulated by user.For example, user utilizes operation input block 64 in real time record period stipulation unique point, and at this moment, feature point detection circuit 57 detects operation input and produces characteristic point information.
Feature point detection circuit 57 offers multiplex electronics 58 by the characteristic point file of generation.
As mentioned above, this optical disc apparatus 51 can with bit stream form, the former this locality of the compressed video signal being provided by digital satellite broadcasting be provided on CD 71.Optical disc apparatus 51 can detect the unique point of vision signal to be recorded, and using unique point as characteristic point file together with compressed video signal record.Therefore, this optical disc apparatus 51 can recorded video signal and do not make picture quality variation, in addition, and the vision signal that this optical disc apparatus 51 can random accesses record.
On the other hand, the 60 execution demodulation of replay circuit and correction process are recorded in compressed video signal and the characteristic point file on CD 71 to replay.
The compressed video signal of replaying and characteristic point file are respectively separated by separation circuit 61.Separated compressed video signal is subject to decoding and processes in mpeg decoder 62, and supplies with monitor 65.Separated characteristic point file offers control circuit 63.
Control circuit 63 is controlled replay circuit 60 according to this characteristic point file information and by the operation input message of operation input block 64 supplies.For example, control circuit 63 is done random access according to the characteristic point information of indicating in characteristic point file and the sevtor address of recording feature point to CD 71.Replay circuit 60 is for example carried out great-jump-forward and is replayed, and the feature point frame of wherein indicating in characteristic point file is replayed constantly, or carries out stem location and replay, to find ideal scenario changing frame.
Another way is, if for example characteristic point file is recorded in the TOC of CD 71, and the information that then control circuit 63 is indicated be presented at characteristic point file on monitor 65 in, user confirms displaying contents, and from the beginning plays required programs.
Above-mentioned mpeg decoder 62 is expressed as the circuit irrelevant with mpeg decoder 56, is for convenience of description, still, can record and replay by circuit of choice for use.
As mentioned above, optical disc apparatus 51 can be replayed and be recorded in the compressed video signal on CD 71 and do not use picture quality variation, and vision signal that can random access record.
Point out in passing, optical disc apparatus 51 can produce new characteristic point file during replaying.In detail, in optical disc apparatus 51, for the output of the mpeg decoder 62 replayed, be provided for feature point detection circuit 57, and produce characteristic point file from the baseband video signal obtaining during replaying.Feature point detection circuit 57 offers control circuit 63 by the characteristic point file producing during replaying, and characteristic point file is stored in machine internal storage.Control circuit 63 can be according to the replay that is stored in separately the characteristic point file control CD 71 in storer.
The in the situation that of producing characteristic point file during replaying, only from recorded video signal, detect the unique point of recording section.But, if for example used while having than the high speed decoder of the processing speed of speed of replay high 4 times or 8 times as mpeg decoder 62, can before replay, produce characteristic point file, because formerly read.
When replay completes or interrupt, optical disc apparatus 51 is multiplexed in the characteristic point file producing during replaying in vision signal, and characteristic point file is recorded on CD 71.Another way is that it can be stored in the storer that is located at control circuit 63 in optical disc apparatus 51.
The accumulation of the characteristic point information that Figure 37 represents and recording processing.First in step S1, control circuit 63 determines whether input signal is simulating signal, if input signal is simulating signal, program proceeds to step S2, and the data of 1GOP are encoded by MPEG 54.Coding stream is recorded on CD 71 by multiplex electronics 58 and writing circuit 59 as file.At this moment, control circuit 63 controlling feature point testing circuits 57, so that the unique point of the incoming video signal being provided by terminal 52 to be provided.Then, program proceeds to step S3, and control circuit 63 is stored in the unique point being detected by feature point detection circuit 57 on step S2 in machine internal storage.Then in next step S4, control circuit 63 determines whether user indicates end of record (EOR), if do not point out end of record (EOR), program turns back to step S2, and repeatedly carries out processing thereafter.If record operation is judged out end in step S4, program proceeds to step S13.
On the other hand, if input signal is not simulating signal, program proceeds to step S5, and control circuit 63 determines whether input signal is according to the bit stream of MPEG2 system coding.If input signal is according to the video flowing of MPEG2 system coding, program proceeds to step S6, and control circuit 63 is analyzed the video data of 1GOP.In detail, control circuit 63 is controlled mpeg decoder 56, to decode required characteristic point information, and as the GOP starting point of bit stream, image type, and the length starting from the heading information being included in bit stream.The characteristic point information that feature point detection circuit 57 detects in the information of being decoded by mpeg decoder 56.Input signal is recorded hereof.
Then, program proceeds to step S7, and control circuit 63 stores the characteristic point information being detected by feature point detection circuit 57 in machine internal storage into.At this moment because storage video flowing according to MPEG2 system coding, mpeg encoder 54 offers multiplex electronics 58 by the former this locality of incoming bit stream, and by writing circuit 59 by bitstream recording in CD 71.
In step S8, whether control circuit 63 is definite records EO by instruction, if its result is "No", program is returned to step S6, and repeats processing thereafter.In step S8, if result is "Yes", program proceeds to step S13.
On the other hand, in step S5, if input signal is confirmed as not according to the video flowing of MPEG2 system coding, program proceeds to step S9, and control circuit 63 determines that this vision signal whether can analyzed (can detect the structure of vision signal).If result is "Yes", program proceeds to step S10, and control circuit 63 is analyzed the vision signal of Yi Ge access unit.In detail, (therefore control circuit 63 controls mpeg decoder 56 decoding input video streams, these mpeg decoder 56 decapacitation are enough decodes according to outside the data of MPEG2 system coding, the basis of can also decoding is not the data of the system coding of MPEG2 system), and according to heading information, decoded video streams is offered to feature point detection circuit 57, with detected characteristics point.At this moment, mpeg encoder 54 is passed through in the former this locality of input video stream, and is recorded in the file in CD 71 by multiplex electronics 58 and writing circuit 59.Then in step S11, characteristic point information is stored in machine internal storage.In step S12, whether control circuit 63 is definite records EO by instruction, if result is "No", program proceeds to step S10, and repeats processing thereafter.In step S12, if this determines that result is "Yes", program proceeds to step S13.
In step S13, control circuit 63 offers feature point detection circuit 57 by the characteristic point information being stored in machine internal storage, to produce file, and is stored in CD 71 by multiplex electronics 58 and writing circuit 59 it as file.
In step S9, if definite result is "No", control circuit 63 makes to record EO.
Below will describe characteristic point information in detail.Two objects of introduced feature dot file are as described below:
★ reduces the access time and replays to realize quick variable-ratio when variable velocity is replayed.
★ need not be embedded in information the burden having reduced in stream during record.
When reaching these objects, expection obtains following effect:
★ is with precision editing MPEG 2 video flowings of frame.
(seamlessly replaying) carried out in ★ conversion between two kinds of streams during replaying smoothly.
Characteristic point information is the arrangement to each extracted bit stream junior unit necessary information.Junior unit is to determine with bit stream characteristic matching, and for example, the in the situation that of mpeg video stream, 1GOP is equivalent to this junior unit; And the in the situation that of audio frequency, 1 audio frame is equivalent to junior unit.In the case, characteristic point information comprises such information: relative byte number and audio frame and replay time that the file header from each place, GOP starting position starts.
Detailed characteristic point information is illustrated in Figure 24 as above.CHUNK_%%%%.ABST is a kind of file, wherein records the unique point of extracting from the bit stream of the chunk as Ziwen piece number %%%% (chunk) part.In this file, for each bit stream cellular construction, as GOP or audio frame, describe and start byte location, length and attribute.For each chunk, (son file sub_file) is collected GOP information and audio frame information as 1 CHUNK_%%%%.ABST.
File_type_id forms as shown in Figure 38, and it means that this is the identifier that has wherein recorded the file of characteristic point information, and is represented by the character string with 16 characters according to ISO-646.
Info_type represents the type of next stream_info (stream information), and specified flow type as shown in Figure 39.
Cognizant_recording_indicator shown in Figure 40 (identification record designator) represents whether this chunk can be understood and upgrade the recording device records of CCI (copy control information).
Number_of_programs (number of programs) representative is included in the number of programs in TS (transport stream), for identifying this number, must read PSI (program specific information).If this number_of_programs is the number of non-TS, this value is 1.
The fluxion that number_of_streams representative is used in this program, if this number is TS number, this value is the number of different PID (bag identifier).If this stream is the mpeg stream of non-TS, the fluxion with different stream_id (flow identifier) is loaded in this position.
Stream_identifier represents stream id, and in TS situation, PID is used as stream id.
Slot_unit_type shown in Figure 41 represents the division methods of using when stream is divided at certain intervals.In the situation that divide index, be the time such as every frame and field, mark service time (time stamp).
Slot_time_length representative is equivalent to the time of 1 groove, and by the time mark value representation that uses 90kHz counter.
Number_of_slots represents to write the groove number in table.
Number_of_thinned_out_slot representative shows thin out groove number, and is worth all grooves that 0 expression represents by slot_unit_type and is recorded in this document.First the groove producing for each stream can not thin outly show.
Text_block () is the region of the various texts of storage, only describes the text items that permission is used in the file that comprises text_block ().
Bitstream_attribute () represents the Basic Flow of MPEG or each video of non-MPEG and the attribute of audio stream.Its syntactic representation is in Figure 42.
Bitstream_attribute_id shown in Figure 43 is the identifier that indication bitstream_attribute () starts from this position, and it represents by the character string with 16 characters according to ISO-646.
Bitstream_attribute_length is included in bitstream_attribute () and represents to follow the length of the data byte after bitstream_attribute_length field.
Attribute_type represents as shown in Figure 44 the attribute type thereafter.
Each video flowing comprises video_attribute ().Because chunk unit is continuous stream, so will determine the attribute of each unit.
The syntactic representation of video_attribute () is in Figure 45.
Input_video_source representative input source type as shown in Figure 46.
Video_compression_mode representative encoded video is as shown in Figure 47 as the method for MPEG1 video, MPEG2 video and DV.
Picture_rate represents the cycle in sampling time of 1 image as shown in Figure 48, and cycle shortest time of presentation video, and no matter picture_scan_type (image scanning type) how.
Which kind of method picture_scan_type representative has been used in the method that 1 image is recorded line by line and in to these methods of 1 image staggered scanning method.Display packing is one problem is set.
The vertical_lines representative number of scanning lines as shown in Figure 50.
Horizontal_active_picture represents the effective pixel in horizontal direction.
Aspet_ratio representative length breadth ratio as shown in Figure 51.
The length breadth ratio (1: 1 or 1: 1.25) of pixel_ratio representative pixel as shown in Figure 52.
The existence of cc_existence representative closed captioning as shown in Figure 53.
Recording_mode representative VDR recording mode as shown in Figure 54, (SP, normal play or LP, long broadcasting).
Copyright_information represents copyright information.
Audio_attribute () is the region of the attribute of record audio stream, and the layout of constant attribute in the chunk of each stream ID.In the situation that recorded a plurality of audio streams with same stream ID in different time, all audio streams should have same alike result.In 1 audio stream, each passage has same-code mode, quantization and sample frequency.
The grammer of audio_attribute () as shown in Figure 55.
Number_of_audio_streams representative is considered as being recorded in total fluxion of the audio stream in chunk, and means the number of the audio stream with different stream id.Audio stream and starting position (starting position is called as characteristic point file) are irrelevant.
Stream_id represents the stream identifier of indication audio stream.
The auxiliary identifier of determining indication audio stream of sub_stream_id representative.
The language code of language_code representative stream is also write according to ISO 639-2.
The input source of input_source representative stream as shown in Figure 56.If it is unknown, be written as " 0000b ".
The coded system of audio_coding_mode representative audio stream as shown in Figure 57.
Bitrate representative fixing or variable-digit speed as shown in Figure 58.
Quantization digit as shown in Figure 59 of q_bit representative (24,20,16,12 etc.).
The sample frequency of the audio stream of fs representative as shown in Figure 60.
The Q-character of emphasis representative " increasing the weight of " as shown in Figure 61, for LPCM stream effectively.
Number_of_channels represents port number (1 (list) is to 8).
Status_of_this_channel represents that whether channel status and representative have the remaining passage for overflow record, for example, represent blank passage.
Channel_assignment represents which channel allocation gives which loudspeaker (left and right, center, rear left, rear right ...) and for LPCM stream effectively.
Dynamic_range_control represents dynamic range control.
Karaoke () representative Karaoke related data.
Slot_info () forms by a stream being divided into the unit of being stipulated by slot_type and individual junior unit (slot) being extracted to the feature flowing.Slot_info () is selectively for each stream type.
The grammer of slot_info () as shown in Figure 62.
Slot_info_id indicates the identifier of slot_info () starting position as shown in Figure 63, and it is according to the string representation of promising 16 characters of ISO 646 apparatus.
The syntactic representation of slot_info_for_one_GOP () is in Figure 64.
Slot_info_for_one_GOP () is the feature of extracting from mpeg video stream, and basic slot unit is a GOP.
Slot_info_one_GOP () repeats to equal the number of times of GOP number in stream.
The slot_start_point below using represents the head end position of groove, and arranges with byte location.In stream, the head end byte of all GOP leaders should be slot_start_point.In addition, the head end byte of the image head tag of I image can be slot_start_point.
Slot_ength represents the length from this slot_start_point to next slot_start_point with byte form, and the in the situation that of first-class and last stream, from the beginning slot_length represents or the length starting from tail.(" info_type==MEPG1_system_stream " in the situation that)
The first byte of sequence_header_start_offset indicator sequence leader, it is positioned at before indication slot_start_point bit position, and the most close slot_start_point.This value is used apart from the absolute value representation of the relative byte number of slot_start_point.
The head end byte of the packet header of the bag that packet_start_offset indication comprises the byte location of being indicated by sequence_header_start_offset.This value is used apart from the absolute value of the relative byte number of slot_start_point and is represented.
The first byte of sequence_header_start_offset indicator sequence leader, it is positioned at before indication slot_start_point bit position, and the most close slot_start_point.This value is used apart from the absolute value representation of the relative byte number of slot_start_point.
The head end byte of the packet header of the PES bag that PES_packet_start_offset indication comprises the byte location of being indicated by sequence_header_start_offset.This value is used apart from the absolute value of the relative byte number of slot_start_point and is represented.
The head end byte of the group leader of the pack (group) that pack_start_offset indication comprises the byte location of being indicated by sequence_header_start_offset.This value is used apart from the absolute value of the relative byte number of slot_start_point and is represented.(" info_type==MPEG2_System_TS " in the situation that)
The first byte of sequence_header_start_offset indicator sequence leader, it is positioned at before indication slot_start_point bit position, and the most close slot_start_point.This value is used apart from the absolute value of the relative byte number of slot_start_point and is represented.
The head end byte of the packet header of the TS bag that TS_packet_start_offset indication comprises the byte location of being indicated by sequence_header_start_offset.This value is used the relative byte number absolute value of the head end byte of the TS packet header apart from comprising slot_start_point is represented divided by 188 resulting numbers.
The head end byte of the PES bag that PES_packet_start_offset indication comprises the byte location of being indicated by TS_packet_start_offset.This value is used apart from the absolute value of the relative byte number of slot_start_point and is represented.
The head end byte of the TS bag that TS_packet_start_offset2 indication comprises the byte location of being indicated by PES_packet_start_offset.This value is divided by 188 values that obtain by the absolute value of the relative byte number of the head end byte of the packet header of the TS bag apart from comprising slot_start_point.(" info_type==MPEG2_System_PS " in the situation that)
The first byte of sequence_header_start_offset indicator sequence leader, it is positioned at before indication slot_start_point bit position, and the most close apart from slot_start_point.This value is used apart from the absolute value of the relative byte number of slot_start_point and is represented.
The head end byte of the packet header of the PES bag that PES_packet_start_offset indication comprises the byte location of being indicated by sequence_header_start_offset.This value is used apart from the absolute value of the relative byte number of slot_start_point and is represented.
GOPH_existence_flag is for representing whether the tight leader above of slot_start_point is the Q-character of GOP leader, only when indication slot_start_point is that image head tag is only effectively.
First_presented_picture_structure is the picture structure that first shows image of this groove as shown in Figure 65.
Copy_closed_GOP represents copying corresponding to the sealing GOP Q-character of the GOP leader of this groove.
What copy_broken_link represented this groove copies breakpoint Q-character.
Time_stamp_of_first_picture represents in indication groove the time mark of the image first showing or temporal information or for the synchronous similar information of AV.
GOP_status represents GOP state, and it comprises in-edit and form at interior Q-character by being for example used to indicate.
Picture_count_type represents picture count type (frame or field) as shown in Figure 66.Because 3-2 is drop-down and go up or end is first problem, image can cause error with frame unit count, therefore allow to take field as unit count.
Number_of_picture represents to be included in the picture number in groove, and it is the value with the unit count of picture_count_type regulation.
Encode_info () represents for recording the region of the information of being supplied with by the scrambler of this stream of coding.
Buffer_occupancy () represents the information of associated buffer occupation rate.
Camera_info () is illustrated in the information (gamma camera shift calibrating information, gamma camera aperture, shutter speed, brightness) of using the information state hypograph picked-up state that gamma camera obtains.
Reserved (standby) represents extended area.
The syntactic representation of slot_info_for_one_audio_frame () is in Figure 67.
Mpeg audio stream information is for each AAU (Audio Access Unit: the order of audio frame) arranging with bit stream file writes.
Poor between the PES bag head end address of the head end that AAU_storage_length represents to comprise indication AAU and the PES bag head end address that comprises next AAU head end, and for finding the position of the bag that wherein comprises AAU head end, add difference.
AAU_start_byte_position represents that the PES bag head end of the head end from comprising indication AAU is to the length of AAU head end byte.
Flag represents various Q-characters.
Encode_info () represents the recording of information region that record is provided by the scrambler of this stream of coding.
Camera_info () is illustrated in information (gamma camera shift calibrating information, gamma camera aperture, the shutter speed of the situation hypograph picked-up state that uses the image information that gamma camera obtains, brightness, frame photography, AE mode, WB mode, design rate, shutter).
The syntactic representation of slot_info_for_one_time_slot () is on Figure 68.
The above example is the situation that the present invention is applied to optical disc apparatus, but also convertible mode, and the present invention can be applicable to the situation of record and the other recording medium of rebroadcast information.
As above for carrying out the distribution media of the computer program of processing to user assignment, as the recording medium of disk, CD_ROM and solid-state memory and as the telecommunication media of network and satellite, all can be employed.
Because according to described pen recorder, according to described recording method and described distribution media, for each file, by comprising vision signal hereof and the characteristic point information of sound signal, be recorded in recording medium, just can control by file unit the replay of vision signal or sound signal.
Because according to described replay device, described rebroadcasting method and described distribution media, the replay of file be according to each file record the characteristic point information in recording medium control, just can manage file.
Because according to described pen recorder, described recording method and described distribution media, characteristic point information to vision signal detects, and vision signal and characteristic point information are all recorded in recording medium, then executive logging and do not make picture quality variation, the vision signal that just access is randomly recorded.Because can be in same system recording/replay, can reduce the expensive of recording/replay device, and no matter vision signal whether compress.
Because according to described recording/replay device, described recording/replay method, and described distribution media, the characteristic point information of file and each file is recorded in recording medium, according to the characteristic point information of replaying from recording medium, carry out the replay of control documents, just can realize file management system easily.
Claims (16)
1. a pen recorder, comprising:
Scrambler, it is configured to encoded video and/or sound signal to generate stream file;
Characteristic point information generating means, it is configured to generating feature dot information, described characteristic point information comprises the attribute information of the some streams, the identification information of each stream and each stream of corresponding each identification information that are used by program, described characteristic point information is included in the message file of corresponding each stream file, and is used to control the replay of described stream file; And
Record cell, it is configured in recording medium recorded stream file and the corresponding message file that comprises characteristic point information respectively.
2. pen recorder according to claim 1, wherein said characteristic point information comprises at least one of frame of starting point, end point and the scene change point of program.
3. pen recorder according to claim 2, wherein said characteristic point information is the I image of program.
4. pen recorder according to claim 2, wherein said characteristic point information also comprises the mute frame of program.
5. a recording method, comprises the following steps:
Coding step, for encoded video and sound signal to generate stream file;
Characteristic point information generation step, the video or the sound signal generating feature dot information that are used to each stream file to comprise, described characteristic point information comprises the attribute information of the some streams, the identification information of each stream and each stream of corresponding each identification information that are used by program, described characteristic point information is included in the message file of corresponding each stream file, and is used to control the replay of described stream file; And
Recording step, at recording medium recorded stream file and the corresponding message file that comprises characteristic point information respectively.
6. recording method according to claim 5, wherein said characteristic point information comprise program starting point, end point and scene change point at least one of frame.
7. recording method according to claim 6, wherein said characteristic point information is the I image of program.
8. recording method according to claim 6, wherein said characteristic point information also comprises the mute frame of program.
9. a replay device, comprising:
Replay unit, is configured to replay and is recorded in the stream file that comprises video and/or audio signal and the corresponding message file on recording medium;
Characteristic point information replay device, be configured to the characteristic point information of replaying from the message file of corresponding each stream, described characteristic point information comprises the attribute information of the some streams, the identification information of each stream and each stream of corresponding each identification information that are used by program; And
Controller, is configured to the characteristic point information replayed the message file based on from corresponding, controls the replay of described stream file.
10. replay device according to claim 9, wherein said characteristic point information comprises at least one of frame of starting point, end point and the scene change point of program.
11. replay devices according to claim 10, wherein said characteristic point information is the I image of program.
12. replay devices according to claim 10, wherein said characteristic point information also comprises the mute frame of program.
13. 1 kinds of rebroadcasting methods, comprise the following steps:
Replay step, is recorded in the stream file that comprises video and/or audio signal and corresponding message file on recording medium for replaying;
Characteristic point information replay step, for the characteristic point information of replaying from the message file of corresponding each stream, described characteristic point information comprises the attribute information of the some streams, the identification information of each stream and each stream of corresponding each identification information that are used by program; And
Control step, for the characteristic point information based on replaying from corresponding message file, control the replay of described stream file.
14. rebroadcasting methods according to claim 13, wherein said characteristic point information comprises at least one of frame of starting point, end point and the scene change point of program.
15. rebroadcasting methods according to claim 14, wherein said characteristic point information is the I image of program.
16. rebroadcasting methods according to claim 14, wherein said characteristic point information also comprises the mute frame of program.
Applications Claiming Priority (12)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP285456/97 | 1997-10-17 | ||
| JP28545697 | 1997-10-17 | ||
| JP28818697 | 1997-10-21 | ||
| JP28818597 | 1997-10-21 | ||
| JP288186/97 | 1997-10-21 | ||
| JP288185/97 | 1997-10-21 | ||
| JP263998 | 1998-01-08 | ||
| JP002639/98 | 1998-01-08 | ||
| JP046861/98 | 1998-02-27 | ||
| JP046862/98 | 1998-02-27 | ||
| JP4686198 | 1998-02-27 | ||
| JP4686298 | 1998-02-27 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98124072 Division CN1222723A (en) | 1997-10-17 | 1998-10-16 | Recording/reproducing apparatus and method recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101350212A CN101350212A (en) | 2009-01-21 |
| CN101350212B true CN101350212B (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100896636A Expired - Fee Related CN100474913C (en) | 1997-10-17 | 1998-10-16 | Circuit for recording apparatus and data processing method |
| CN200810133839.7A Expired - Lifetime CN101350212B (en) | 1997-10-17 | 1998-10-16 | Processing apparatus and processing method |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100896636A Expired - Fee Related CN100474913C (en) | 1997-10-17 | 1998-10-16 | Circuit for recording apparatus and data processing method |
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| CN (2) | CN100474913C (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8577209B2 (en) * | 2010-06-15 | 2013-11-05 | Mediatek Inc. | Method for utilizing at least one storage space sharing scheme to manage storage spaces utilized by video playback operation and related video playback apparatus thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1123580A (en) * | 1994-02-28 | 1996-05-29 | 索尼公司 | Method and device for recording data, data recording medium, and method and device for reproducing data |
-
1998
- 1998-10-16 CN CNB2005100896636A patent/CN100474913C/en not_active Expired - Fee Related
- 1998-10-16 CN CN200810133839.7A patent/CN101350212B/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1123580A (en) * | 1994-02-28 | 1996-05-29 | 索尼公司 | Method and device for recording data, data recording medium, and method and device for reproducing data |
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|---|---|
| CN101350212A (en) | 2009-01-21 |
| CN1764263A (en) | 2006-04-26 |
| CN100474913C (en) | 2009-04-01 |
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