CN100492511C - High-definition audio-vedio HVD optical disc realization method - Google Patents
High-definition audio-vedio HVD optical disc realization method Download PDFInfo
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- CN100492511C CN100492511C CNB2004100165528A CN200410016552A CN100492511C CN 100492511 C CN100492511 C CN 100492511C CN B2004100165528 A CNB2004100165528 A CN B2004100165528A CN 200410016552 A CN200410016552 A CN 200410016552A CN 100492511 C CN100492511 C CN 100492511C
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Abstract
The invention is a high visibility audio image HVD disk, which belongs to audio image transmission technology field. The invention is made up of HVD system layer including total control files and audio and video frequency playing control files group; audio and video frequency playing control files group layer including each concrete audio frequency, video frequency files, index files and command control files which is used to control the play of each files; playing flow layer including audio frequency flow, video frequency flow and caption flow, which are used for the reoccurrence of the video frequency, video frequency and the caption. The invention supports video frequency flow produced with multiple standard compression methods, supplies strong functions; the navigation control information can be separated with the audio frequency, video frequency playing flow, and it can be duplicated, upgrades the error during ability.
Description
Technical field
What the present invention relates to is a kind of method that is used for the medium of realization information record, the method that especially a kind of high definition phonotape and videotape HVD CD is realized.Belong to audio-video ASCII stream.
Background technology
The physical medium that is used for record data at present mainly contains CD, DVD.Physical medium is regarded as information medium together in conjunction with corresponding information recording method.The recording medium of audio-frequency information and video information can be divided into AUDIO (music) CD, VCD, Super Video CD, DVD-Video (DVD optic disk) and DVD-Audio (audio frequency DVD) or the like by form.AUDIO (music) CD can only recording digital audio information, VCD can only write down the video information by the MPEG1 standard code, and DVD-Video (DVD optic disk) can only write down the video information of pressing the MPEG2 standard code of common 720*480 (TSC-system formula) or 720*576 (pal mode).The information medium of these forms all can not be supported the broadcast in HD video source.
Through to the literature search of patent the time, find, application is artificial: Samsung Electronics Co., Ltd, the Chinese patent application name is called: the apparatus and method of DVD dish, reproduction DVD dish, number of patent application is: 97114147.9, patent application publication number is: 1195170A, this patented claim readme is: a kind of exchange with the device that reproduces the DVD optic disk used the also dish of recording multi-channel voice data.The device that reproduces the DVD audio disc comprises: the video attribute of video title set, subimage attribute, comprise the video/sub-picture pack of extended audio stream, extended audio stream has extended audio stream leader and frame, and this leader has audio coding pattern, sample frequency, quantizing bit number and the use data of storage extended audio data and the use district of indication bit, bandwidth and channel expansion.Video/sub-picture pack consists of the audio pack that writes down the extended audio data selectively, and can be by the reproduction data and the extended audio bag reproducing audio data of combination elementary audio bag.
Can find that from the content of this patented claim this DVD optic disk standard formulation time, early also there was weak point in some aspects, as:
1, the DVD optic disk " is used the video area of the data storage DVD optic disk of MPEG-1/MPEG-2 video system compression " (this patent specification part).Present existing MPEG-4 video compression technology and expansion technique thereof have higher data compression rate, under the same situation of present most popular ruddiness technology DVD dish amount of capacity, can obtain the video stream of supporting that length of a film is longer.
2, the source images sharpness that defines in the VTS-V-ATR structure that the DVD optic disk defines in embodiment only relates to 720*480 (525/60 system), 720*576 (625/50 system), 704*480 (525/60 system), 704*576 (625/50 system), 325*480 (525/60 system), 352*576 (625/50 system), 252*240 (525/60 system) and 352*288 (625/50 system).Along with people increase the requirement of HD video player, need a kind of disc formats that can on ruddiness technology disc, support the HD video source.
3, can find that DVD navigational system that optic disk adopts is a very powerful navigational system in the standard of the more detailed DVD optic disk that from the DVD Specifications for Read-Only Disc Part 3 VIDEO SPECIFICATIONSVersion 1.12 that this description of the invention and DVD Format/Logo Licensing Corporation provide, provides; But its navigational system is very complicated, is difficult to all situations of covering when making the realization of player play disc, causes that the broadcast to different discs may produce variety of issue in playing process.In addition, the DVD optic disk is used for aiming at the more storage space of data structure needs of navigational system, makes disc can be used for storing the space minimizing of real audio plays, video streaming content.
4, can find to have in the DVD optic disk audio frequency of the control information (PCI/DSI information) and the broadcast of part from the accompanying drawing of this patent of invention instructions and in the standard of the more detailed DVD optic disk that provides among the DVD Specifications for Read-Only Disc Part 3 VIDEOSPECIFICATIONS Version 1.12 that provide of DVD Format/Logo LicensingCorporation, video flowing is stored on the identical file, if file has damage, the effect that can directly influence, if back up whole file, almost be impossible from the angle of disc self-capacity.
Consider at present cheap in the world high density high capacity disc still based on the ruddiness technology,, be sought after a kind of disc formats that can on ruddiness technology disc, support the HD video source along with people increase the requirement of HD video player.Because the data volume of high definition video steaming is very big and the restriction of ruddiness disc capacity, this disc formats must be used less system overhead as far as possible and be easy to and realize under the prerequisite that guarantees essential navigation feature.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, the method that provides a kind of high definition phonotape and videotape HVD CD to realize.Make it write down each audio frequency and HD video compressed bit stream and a kind of navigational system that is used for sound, video playback dish Play Control that is used to play, its navigation control information is all opened with audio frequency, video playback flow point, and all can back up, thereby improved the fault freedom of disc, and navigation information and audio and video information layer of structure are simple in structure, are easy to realize.
The present invention is achieved by the following technical solutions.The present invention comprises overall control documents and audio frequency and video Play Control file group by the HVD system layer; Audio frequency and video Play Control file group layer comprises in each concrete audio frequency, video playback message file, index file and the order control documents and forming, and is used to control each play stream; Play fluid layer, comprise audio stream, video flowing and caption stream, be used for the reproduction of audio frequency, video and captions.
In described overall control documents, play needed total navigation information on the storage disks, comprise in the audio frequency and video Play Control message file group of storage each audio frequency, video correspondence and control information each concrete audio frequency, video playback, and the overall information on the disc, the information of each audio/video information file, disc menu information, disc are play inlet information.
Described audio frequency and video Play Control file group is the file of storage Play Control information, each audio frequency, video playback stream all have one group of audio/video information file to match with it, and every group of audio frequency and video Play Control file group is made up of three files: attribute information file, index information file and order control documents.
The attribute that includes audio frequency, video and the captions of this audio frequency, video playback stream in the described attribute information file, and, play chapters and sections information about the information of index information file and control information file.
Described index information file be used for extracting in storing audio, the video playback stream can be used as time search and special play-back, as F.F., rewind down, slow-motion, move back the file of the information that needs slowly, comprise the position that the I frame image place of adopting the mpeg standard coding is arranged and the position of video flowing header for video flowing.
Described order control documents is to be used for the desired file that is used for controlling the information of disc playing sequence and result of broadcast of storage disks, include the control information that the broadcast between each audio frequency, the video playback stream connects, audio frequency and captions control information, the control information of captions and highlight bar display effect etc. are set.Realize control in the mode of a series of order to above-mentioned functions.
Attribute information file in overall control documents and the audio frequency and video Play Control file group, index information file and order control documents all are that player is realized very important file in the playing process, can select to increase by one group of suffix the backup file that is BAK is stored on same the disc, the content of these backup files is identical with original, only uses when file mentioned above is destroyed.There are the control information of part and audio frequency, the video flowing of broadcast to be stored on the identical file among the DVD-Video (DVD optic disk), if file has damage, can be directly the effect of influence broadcast, if back up whole file, almost be impossible from the angle of disc self-capacity; And the relevant navigation information of all controls of HVD dish all separates with audio frequency, video flowing and deposits, and can back up, and has improved the fault freedom that disc is play.For final consumer provides a better selection.This is another advantage of HVD dish form.
Can be by canned data in overall control documents described above and the audio frequency control documents group so that player can be realized complicated navigation feature convenient, simply in the process that audio frequency, video flowing disc are play.Name has certain dirigibility to HVD dish navigational system for the filename on the disc.Audio frequency, video playback stream can be made up of a plurality of files that meet certain naming rule, can reach the function of continuous broadcast equally; And the filename of other file all can be formulated by the disc wright except overall control documents, and these all help the arrangement of disc manufacturing system to the file storage order, make that manufacturing process is simple.
Above-described all be recorded in the file on the HVD dish, all information that involve physical location are all with the relative position record of this document starting position.This practice of avoiding using the disc absolute position greatly facilitates the manufacturing process of disc, more helps increase, deletion and the adjustment of audio frequency, video playback stream.
The present invention has substantive distinguishing features and marked improvement, has following characteristics: support the video flowing that multiple standards (MPEG1, MPEG2, MPEG4, H.264, WMV9, AVS Standard of image compression) compression is made.The navigational system of using in the HVD disc is simple, is convenient to the manufacturing process of disc and the realization of playing process.The HVD dish has the expense of the data system of less non-audio, video playback stream itself.Powerful Play Control function is provided, supports the control of various special play-back and user interaction.Navigation control information on the HVD dish is all opened with audio frequency, video playback flow point, and all can back up, and has improved the fault freedom of disc.The navigation information and the audio and video information layer of structure of HVD dish are simple in structure, are easy to realize.
The resolution of the video flowing of DVD-VIDEO (DVD optic disk) record is 720*480 (TSC-system formula) or 720*576 (pal mode); And the video flowing of HVD dish record can be supported multiple different television system (TSC-system, PAL-system, high definition standard) and resolution (resolution reaches as high as 1920*1080).Take all factors into consideration various factors, mainly adopt the high-definition format of 960*720 at present based on the video flowing in the dish of the HVD on the ruddiness disc.Simultaneously, HVD dish can be used in by MPEG1, MPEG2, MPEG4, H.264, the video flowing that compresses of WMV9, AVS standard.
Description of drawings
Fig. 1 is navigation information and audio frequency, video playback fluid layer aggregated(particle) structure synoptic diagram in the HVD dish of the present invention.
Fig. 2 is the structural drawing of the order control documents of record in the HVD dish of the present invention.
Fig. 3 is the navigation information principle of work and the playing flow figure of record in the HVD dish of the present invention.
Embodiment
Before describing according to most preferred embodiment of the present invention, be given in agreement, digital representation and the fundamental type explanation that to use when describing embodiment earlier, these information are to constitute the ABC of most preferred embodiment or the explanation of data description method, help to understand better most preferred embodiment.
Agreement
The bit ordering: the diagram of all multidigit bit numbers is expressed as highest significant position (msb) on the left side, and least significant bit (LSB) (lsb) on the right.Most significant bits is the bit with the highest-order bit number.Bit i represents that the bit position is the bit of i.
Save land ordering for example as table 18 bit words
Byte ordering: need to surpass 8 data that bit is represented, in optic disk, occupy more than one byte.For all these data, the byte align order on optic disk is: most significant byte (MSB) up front, and least significant byte (LSB) is in the end.
The diagram of multibyte data is expressed as: the left side or higher byte are most significant bytes, and the right or lower byte are least significant bytes.
The data sorting of two bytes of table 2 for example
Digital representation
Decimal notation: the decimal marker of numeral is numeral decimally, and highest significant position on the left side, least significant bit (LSB) are on the right.
Sexadecimal notation: the sexadecimal mark of numeral represents that with the sequence heel one " h " of one or more hexadecimal digits highest significant position on the left side, least significant bit (LSB) are on the right.
Hexadecimal digit 0123456789 A B C D E F
Decimal value 0123456789 10 11 12 13 14 15
The sign of binary number: all binary number back all add a b, and highest significant position on the left side, least significant bit (LSB) are on the right.Binary number by 0,1 or * represent (* can be 0 or 1).
Fundamental type
The signed integer of INTn n position (n can be 8,16,32,64).
The signless integer of UINTn n position (n can be 8,16,32,64).
Bytes does not have a plurality of bytes of precise meaning, and filling content is from low byte, and unfilled content must all be changed to 0.
The LSN logic sector number, the logic sector number of logic sector is 0 in fact, the logic sector number of each logic sector is that the logic sector number of previous logic sector adds 1 later on.
The relative byte location of RBP
The relative logic sector number of RLSN
STRING is with the character string of ASCII coding
So ZERO represents the bit of corresponding byte and is zero
HVD dish information is formed
Data on the HVD dish are by disc overall information file and audio frequency and video Play Control file group (attribute information file, index information file and order control documents) and sound is looked, the video playback stream data file is formed.Referring to Fig. 1.
The overall information file
The overall information that includes this disc in the overall information file, and about the information of each audio frequency, video playback stream file, the menu information of disc, the broadcast inlet information of disc etc.Its data structure sees the following form 3:
| Relativity shift RBP | The data segment title | Explanation | Byte number | Data type |
| 0-7 | NAV_VER | The overall information fileversion number | 8 | STRING |
| 8-39 | DISC_NAME | The disc name | 32 | STRING |
| 40-71 | PVR_IFO | Publisher's title | 32 | STRING |
| 72-73 | TITLE_NO | The audio/video flow number | 2 | UINT16 |
| 74 | FP_TITLE | The first broadcast number of releasing | 1 | UINT8 |
| 75 | FP_CHAPTER | The first broadcast section number of releasing | 1 | UINT8 |
| 76-107 | MENU_IFO | The menu information filename | 32 | STRING |
| 108-139 | T1_IFO | Play stream 1 message file name (option) | 32 | STRING |
| 140-171 | T2_IFO | Play stream 2 message file names (option) | 32 | STRING |
| 202-233 | T3_IFO | Play stream 3 message file names (option) | 32 | STRING |
| …… | ||||
| Tn_IFO | Play stream n message file name (option) | 32 | STRING |
The overall information filename of HVD disc uses fixing hvd.ifo.This is unique Permanent File Name, indicates that this disc is the HVD disc.This document is recorded on the DVD physical medium.It is the boot files of whole HVD dish.
Audio frequency and video Play Control file group
Audio frequency and video Play Control file group is made up of three files: attribute information file, index information file and order control documents.
Attribute information file
The attribute that includes audio frequency, video and the captions of this audio frequency, video playback stream in the attribute information file, and, play chapters and sections information etc. about the information of index information file and control information file.Its data structure sees the following form 4:
| Relativity shift RBP | The data segment title | Explanation | Byte number | Data type |
| 0-7 | NAVT_VER | Attribute information file version number | 8 | STRING |
| 8-39 | TITLE_NAME | Audio frequency and video play stream title | 32 | STRING |
| 40-71 | PVR_IFO | Publisher's title | 32 | STRING |
| 72-73 | CHAPTER_NO | The chapters and sections number | 2 | UINT16 |
| 74 | File_NO | The contained number of files of audio frequency and video play stream | 1 | UINT8 |
| 75 | VIDEO_Ns | The contained video number of audio frequency and video play stream | 1 | UINT8 |
| VIDEO_ATTR[i] | The attribute of contained each video of audio frequency and video play stream | 2*Vide o_Ns | ||
| AUDIO_Ns | The contained audio frequency number of audio frequency and video play stream | 2 | UINT16 | |
| AUDIO_ATTR[i] | The attribute of contained each audio frequency of audio frequency and video play stream | 2*Audi o_Ns | ||
| CAPTION_Ns | The contained captions number of audio frequency and video play stream | 2 | UINT16 | |
| CAPTION_ATTR[ i] | The attribute of contained each captions of audio frequency and video play stream | 2*CAPT ION_Ns | ||
| PLAY_STREAM | The file name of audio frequency and video play stream compression data file | 32 | STRING | |
| INDEX_IFO | The file name of audio frequency and video play stream index information file | 32 | STRING | |
| PLAYBACK_INO | The file name of audio frequency and video play stream order control documents | 32 | STRING | |
| CAPTION_LIB | The file name of the used fontlib of audio frequency and video play stream captions | 32 | STRING | |
| CHAP1_NAME | The title of chapters and sections one | 32 | STRING | |
| CHAP1_S_TIME | The start time of chapters and sections one | 4 | UINT32 | |
| CHAP2_NAME | The title of chapters and sections two (optional) | 32 | STRING | |
| CHAP2_S_TIME | The start time of chapters and sections two (optional) | 4 | UINT32 | |
| CHAP3_NAME | The title of chapters and sections three (optional) | 32 | STRING | |
| CHAP3_S_TIME | The start time of chapters and sections three (optional) | 4 | UINT32 | |
| …… | (optional) | |||
| CHAPn_NAME | The title of chapters and sections n (optional) | 32 | STRING | |
| CHAPn_S_TIME | The start time of chapters and sections n (optional) | 4 | UINT32 |
VIDEO_ATTR[i wherein] attribute of record audio, contained each video of video playback stream.The attribute of the different video program that this audio frequency, video playback stream are comprised.Its data structure such as following table 5:
15: the per second display frequency
0：60HZ
1：50HZ
14: the video system type
0：PES
1：ES
13-12: TV system mode
00：525/60
01：625/50
10：720p/60/50
11：1080i/60/50
11-10: length breadth ratio
00：4:3
01：1:1
10: keep
11：16:9
9-8: display mode
00:Pan-scan and LetterBox
01: have only Pan-scan
10: have only LetterBox
11: keep
7-6: cipher mode
00: unencryption
01: cipher mode 1
10: cipher mode 2
11: cipher mode 3
5-3: image resolution ratio
525/60 system:
000：720?x?480
001：704?x?480
010：352?x?480
011：352?x?240
Others: keep
625/50 system:
000：720?x?576
001：704?x?576
010：352?x?576
011：352?x?288
Others: keep
The 720p/60 system:
000：1280?x?720
001：960?x?720
010：720?x?720
Others: keep
The 1080i/60 system:
000：1920?x?1080
001：1280?x?1080
010：1280?x?540
011：960?x?540
Others: keep
2-0: video compress pattern
000：Mpeg-1
001：Mpeg-2
010：Mpeg-4/Divx
011：Jpeg
100：H.264
101：WMV9
110：AVS
111: keep
This data structure has been done detailed definition to the form of video playback stream on the HVD dish.The video compress pattern can adopt MPEG1, MPEG2, MPEG4, H.264, WMV9, AVS and Joint Photographic Experts Group; Image resolution ratio mainly adopts the high-definition format of 960*720, reaches as high as 1920*1080.
The index information file
All audio frequency, video playback stream file in playing process if do the deviation post in play stream that time search and special play-back (such as F.F., rewind down, slow-motion and move back or the like slowly) all need the I two field picture that matched with it.
In order to make the control of player simple, this navigational system adopts regular time at interval, as the unit of time index.Include the deviation post of the pairing I two field picture of each time index unit in play stream in the index information file, and whether corresponding I two field picture there is the Video stream information header corresponding with it.
After video flowing analyzed, the index information of resulting this video flowing is deposited in the independent file (index information file) specially, is made the structure such as the following table 6 of file:
| Relativity shift RBP | The data segment title | Explanation | Byte number | Data type |
| 0-7 | IDX_VER | Index file version number | 8 | STRING |
| 8-11 | ENTRY_NUM | The time index sum | 4 | UNIT32 |
| 12-15 | SECTOR_OFF00 | 0.0 the deviation post of second | 4 | UNIT32 |
| 16-19 | SECTOR_OFF05 | 0.5 the deviation post of second | 4 | UNIT32 |
| 20-23 | SECTOR_OFF10 | 1.0 the deviation post of second | 4 | UNIT32 |
| 24-27 | SECTOR_OFF15 | 1.5 the deviation post of second | 4 | UNIT32 |
| …… | ||||
| SEQ_INFO_NUMBER | A video information change frequency | 4 | UNIT32 | |
| SEQ_INFO_OFFSET | Position in the video information data indexed file | 4*SEQ_IN FO_NUMBER | UNIT32 | |
| SEQ_INFO_SECTOR | The deviation post of video information head in compressed video stream | 4 | UNIT32 | |
| SEQ_INFO_LENGTH | The data length of video information head | 4 | UNIT32 | |
| SEQ_INFO | A video information data | SEQ_INFO LENGTH | ||
| …… |
The order control documents
The order control documents is to be used for the desired file that is used for controlling the information of disc playing sequence and result of broadcast of storage disks.All control informations are to exist with the form of ordering.Command file is made up of some command sets, and each command set is made up of some orders.The structure of this order control documents as shown in Figure 2.
The form of order control documents is a table 7:
| Relativity shift RBP | The data segment title | Explanation | Byte number | Data type |
| 0-7 | CTR_VER | Control documents version number | 8 | STRING |
| 8-11 | CMD_TABLE_NUM | The instruction set sum | 4 | UNIT32 |
| CMD_TABLE_1 | Instruction set 1 | |||
| CMD_TABLE_2 | Instruction set 2 | |||
| 。。 | ||||
| CMD_TABLE_n | Instruction set n |
The instruction set explanation
Instruction in the instruction set can be divided into four classes by its function:
1, playing process control
Control the broadcast state of each audio/video flow and the connection of broadcast each other.
2, the setting of play parameter
Some parameters of using in the player playing process are set, such as the selection of audio frequency and subtitle language.
3, the setting of captions parameter
Be provided with the used palette of captions and with the mixability of video layer.The mode of utility command control is provided with the parameter of captions, can make that the display effect of captions is more diversified and be convenient to player to realize.
4, the control of captions highlight bar
The user participates in interactive operating function have been become audio frequency disk and has play one of indispensable function, so the demonstration of button and operation also become the indispensable function of navigational system.This navigational system adopts the highlighted mode of captions and forms the button that the user participates in interactive selection cooperating of video image.All highlighted controls all are integrated in this order have made things convenient for the making of disc manufacturing system in control documents, and make the broadcast of player realize becoming comparatively simple.The highlight bar control command mainly comprise the setting of highlight regions, highlighted palette and with the setting of video layer degree of mixing, being provided with etc. of the setting of handover information and push button function relatively between the button.
All orders are stored in by the execution time among the different orders, and the demanded storage of identical execution time is carried out by the order of storage among same order.
The order of supporting in the instruction set sees Table 8:
| Instruction type | The instruction title | Explanation | Number of parameters |
| 1 | CMD_PLAY_END | The play stream end mark | 0 |
| 2 | CMD_PLAY_POINT | Play inlet next time | 2 |
| 3 | SET_SUB_ATTR | The captions display parameter are set | 16 |
| 4 | SET_BUTTON_NUM | Number of buttons is set | 1 |
| 5 | SET_HLI_AREA | Highlighted viewing area is set | 5 |
| 6 | SET_BUTTON_ACTION | The button corresponding function is set | 2 |
| 7 | SET_HLI_BUTTON | Selected button is set | 1 |
| 8 | CMD_PLAY_RSM | Beginning is play in memory | 0 |
| 9 | SET_STILL_TIME | The still frame time is set | 1 |
| 10 | SET_HLI_ATTR | The highlight bar display parameter are set | 16 |
| 11 | SET_SEL_ATTR | Highlighted selected areas display parameter are set | 16 |
| 12 | ENABLE_HLI | Allow highlighted demonstration | 0 |
| 13 | DISABLE_HLI | Forbid highlighted demonstration | 0 |
| 14 | CMD_Stop | Stop to play | 0 |
| 15 | SET_AUDIO | Select audio language | 1 |
| 16 | SET_CAPTION | Select subtitle language | 1 |
| 255 | CMD_END | The order ending | 0 |
Backup file
Attribute information file in overall control documents and the audio frequency and video Play Control file group, index information file and order control documents all are that player is realized very important file in the playing process, can select to increase by one group of suffix the backup file that is BAK is stored on same the disc, the content of these backup files is identical with original, only uses when file mentioned above is destroyed.The relevant navigation information of all controls of HVD dish all separates with audio frequency, video flowing to be deposited, and can back up, and has improved the fault freedom that disc is play.
HVD dish navigation principle of work, flow process are referring to Fig. 3.HVD dish navigation work is divided into following step:
1, dish bootup process: detect the overall control documents (hvd.ifo) that whether has the HVD dish on the disc; Whether if this document exists, reading its control information and analyzing as if the version number information in the overall control documents is " HVD-xxxx "; If information is correct, judge that then this dish is the HVD dish.
2, determine that first broadcast audio frequency, video playback flow through journey: the overall control documents that analytical procedure 1 reads therefrom extracts the HVD that sets in advance and coils audio frequency, the video playback stream number of first broadcast; Read the section number of this audio frequency, the first broadcast of video playback stream.
3, audio plays, video playback flow through journey: according to the audio frequency of obtaining, video playback stream number, find corresponding audio frequency and video Play Control file group file on the HVD dish; Read and read corresponding attribute information file, index information file and order control documents; According to the section number of the audio frequency of obtaining, video playback stream, the search index message file also maybe must write down the positional information of realAudio, video playback stream; Read audio frequency, video playback flow data, play by decoder decode.
4, control disc playing sequence and result of broadcast process in the playing process: read the order control documents in the audio frequency and video Play Control file group; According to the time that is associated with command set, carry out the order in the specific command set; According to different orders, reach different playing sequence and results of broadcast after the execution.
5, realize various trick play operation processes in the playing process: read the index information file in the audio frequency and video Play Control file group; According to the user require the search index message file, extract the audio frequency that desire plays, the physical location of Video stream information; Read audio frequency, the Video stream information of specified point by demoder, thereby realize various trick play operations, for example F.F., slow-motion, rewind down, move back slowly, time search, programming broadcast, shuffle, play stream repeat, chapters and sections repeat, 2 repeat and label is provided with or the like.
Claims (5)
1, a kind of method that contains the high definition phonotape and videotape HVD CD realization of version number information is characterized in that, specifically may further comprise the steps:
1. detect the overall control documents that whether has the HVD dish on the disc;
2. the overall control documents that 1. reads of analytical procedure therefrom extracts audio frequency, the video playback stream number of the HVD dish first broadcast that sets in advance, and reads the section number of this audio frequency, the first broadcast of video playback stream;
3. audio plays, video playback flow through journey, and concrete steps are as follows:
A), on the HVD dish, find corresponding audio frequency and video Play Control file group file according to audio frequency, the video playback stream number obtained;
B) open and read corresponding attribute information file, index information file and order control documents;
C) according to the section number of the audio frequency of obtaining, video playback stream, the positional information of realAudio, video playback stream is write down in search index message file and acquisition;
D) read audio frequency, video playback flow data, play by decoder decode;
4. control disc playing sequence and result of broadcast;
5. realize various trick play operations.
2, the method that contains the high definition phonotape and videotape HVD CD realization of version number information according to claim 1, it is characterized in that, described overall control documents if exist, reads its control information and whether the version number information analyzed in the overall control documents is " HVD-xxxx " on disc; If information is correct, judge that then this dish is the HVD dish.
3, the method that contains the high definition phonotape and videotape HVD CD realization of version number information according to claim 1 is characterized in that, described control disc playing sequence and result of broadcast, and concrete steps are as follows:
1. read the order control documents in the audio frequency and video Play Control file group;
2. time of being associated of basis and command set, carry out the order in the specific command set;
3. according to different orders, reach different playing sequence and results of broadcast after the execution.
4, the method that contains the high definition phonotape and videotape HVD CD realization of version number information according to claim 1 is characterized in that, the various trick play operations of described realization, and concrete steps are as follows:
1. read the index information file in the audio frequency and video Play Control file group;
2. according to the user require the search index message file, extract the audio frequency that desire plays, the physical location of Video stream information;
3. read audio frequency, the Video stream information of specified point by demoder, thereby realize various trick play operations.
5, the method that contains the high definition phonotape and videotape HVD CD realization of version number information according to claim 4, it is characterized in that, described various trick play operation is meant: F.F., slow-motion, rewind down, move back slowly, time search, programming broadcast, shuffle, play stream repeat, chapters and sections repeat, 2 repeat and the label setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100165528A CN100492511C (en) | 2004-02-26 | 2004-02-26 | High-definition audio-vedio HVD optical disc realization method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100165528A CN100492511C (en) | 2004-02-26 | 2004-02-26 | High-definition audio-vedio HVD optical disc realization method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1560856A CN1560856A (en) | 2005-01-05 |
| CN100492511C true CN100492511C (en) | 2009-05-27 |
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| CNB2004100165528A Expired - Lifetime CN100492511C (en) | 2004-02-26 | 2004-02-26 | High-definition audio-vedio HVD optical disc realization method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1929011B (en) * | 2006-07-10 | 2010-10-06 | 联发科技股份有限公司 | Karaoke system |
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| CN1560856A (en) | 2005-01-05 |
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Address after: 200030 A building, No. 5, Huaihai West Road, Shanghai, 55 Patentee after: AMLOGIC (SHANGHAI) Co.,Ltd. Address before: 200030 A building, No. 5, Huaihai West Road, Shanghai, 55 Patentee before: AMLOGIC (SHANGHAI), Inc. |
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Granted publication date: 20090527 |