Introduction tohd dvd-advcontents
- 1. A Bird’s Eye View of HD-DVD Advanced Content Rendered By: V.M.Vasudevan Title Time Line : 22nd Aug, 2006 Logical Sector: Ashwini Hall
- 2. Data Specifications Video Audio No of Streams = 2 No. of Streams Main, Sub Picture (MAX) Compression Main stream 8 MPEG(2,4), Sub Stream 8 VC1Video Coding Mode Sub Picture LPCM, DTS-HD, Dolby Digital, No of Streams = 32 MPEG, AAC Display Area 1920(H) - 1078(V)
- 3. Some Vital Definitions Elementary Stream A generic term for one of the coded Video/Audio/bit streams. Packet Consists of header followed by a number of contiguous bytes from an elementary stream Pack Consists of a pack header followed by one or more packets.
- 4. Some Vital Definitions (Contd…) Standard Video format Video format for Standard definition Enhanced Video format Video format for High definition contents Video System Time Unit (VTSU) Period between 2 consecutive fields or frames.
- 5. Some Vital Definitions (Contd…) Enhanced Video Object (EVOB) Is the MPEG stream which is made up of a group of elementary stream. Enhanced Video Object Set Is a collection of EVOB. There are 3 different types. Enhanced Video Object Unit (EVOBU) Is a part of EVOB and the presentation time is 0.4 sec < x < 1.001 sec.
- 6. Some Vital Definitions (Contd…) Cell The basic unit of the content to be presented. Consists of integer number of EBOVU Cell Block Composed of cells, one of which is presented by the user selection.
- 7. Content Types Standard Content Extension of DVD-Video Ver.1.1 Consists of one VMG space and one or more VTS space Advanced Content This realizes more interactivity over SD. Consists of : Play list, Primary & Secondary video set, Advanced application and Advanced subtitle.
- 8. Advanced Content - Structure Play list Markup Advanced Advanced Scripts Application Navigation Manifest Advanced Element Image st net no C dec na v d A Effect Audio Font
- 9. Advanced Content - Structure VTSI Primary Primary Time Map Video Set Audio/Video P-EVOB Substitute Audio/Video Secondary Substitute Time Map st net no C dec na v d A Video Set Audio Secondary Audio/Video S-EVOB
- 10. Advanced Content - Structure Advanced Advanced Manifest Subtitle Navigation Markup Advanced Element Image Font Configuration st net no C dec na v d A File
- 11. Play Lists PLAY LIST TMAP TMAP Manifest Manifest EVOBI S-EVOB Markup Script Markup P-EVOB Image Font Image Effect Audio Font
- 12. Sample Play List File
- 13. Play List Contains ? Configuration Parameters used at startup Cannot be changed by the user Parameters Streaming Buffer Aperture Main Video Default Colour Network Timeout
- 14. Play List Contains ? Media Attributes Describes about the elementary stream CODEC is the only mandatory attribute Two types : Audio & Video attributes. Attributes referenced by a unique index Only the index=1 is common for audio and video.
- 15. Play List Contains ? Title Information TitleSet May contain a First Has 2 elements Title Play Title. & TitleSet. Shall be played Each Title is assigned before Title1 playback is a title timeline. presented. Each title has Contains one or more navigational Primary Audio Video information. and/or Substitute Audio Video
- 16. What We have Seen Play list Markup Advanced Advanced Scripts Application Navigation Manifest Advanced Element Image st net no C dec na v d A Effect Audio Font
- 17. Next in the List Play list Markup Advanced Advanced Scripts Application Navigation Manifest Advanced Element Image st net no C dec na v d A Effect Audio Font
- 18. Markup Advanced application employs 4 types of markup Content Markup Style Markup Timing Markup Script. 3 of them are XML based and the other is a scripting vocabulary based.
- 19. Markup – Content Vocabulary Contains structuring elements and object elements for interaction objects Types of elements Non-display Display Navigable Activate-able State full
- 20. Markup – Content Vocabulary Non-Display contains information relating to display but not directly involved Display is similar to non-display but contribute directly to the output display Navigable behave like display, in addition are aware of cursor movements Activate-able behave like Navigable, in addition can have focus and be activated. State full behave like activate-able, in addition has a state value.
- 21. Markup – Style Vocabulary Consists of 2 types : Styling and Style element types. Is used in the following mechanism: Applicative mode Referential mode Inline mode Timing mode
- 22. Markup – Style Vocabulary The first 3 modes serve as static style state used for format & display. The fourth one is used for dynamism. Usage of style: Changing display property of an element Changing the visibility/color of an element Style inheritance is allowed.
- 23. Markup – Timing Vocabulary Is a subset of SMIL adopts the following subsets of SMIL: Basic Inline Timing Basic Time Containers Time Containers Attributes Basic Animation Defines the overall time interval in which advanced application is valid
- 24. Markup – Script Vocabulary Has the following functionalities: Character Set and Encoding Built-in Objects Runtime Compilation Dynamic modifications of Built-in objects Global Object Properties The Script shall not support: “WITH” statement Automatic semicolon insertion
- 25. Manifest Is the initialization information of the advanced application for a Title Player shall launch the application in accordance with the information in the manifest file Initialization information contains: Initial Markup file to be executed Script file(s) to be executed during application startup
- 26. The Next Item VTSI Primary Primary Time Map Video Set Audio/Video P-EVOB Substitute Audio/Video Secondary Substitute Time Map st net no C dec na v d A Video Set Audio Secondary Audio/Video S-EVOB
- 27. Primary Video Set Consists of : Video Title Set Information (VTSI) Enhanced Video Object Set (VTS_EVOB) for Video Title Set Primary Enhanced VOB (P-EVOB) VTS Time Map Information (VTS_TMAP) Backup: For VTSI (VTSI_BUP) For VTS_TMAP (VTS_TMAP_BUP)
- 28. Video Title Set Information VTSI Management Table (VTSI_MAT) Video Title Set Information VTS EVOB Attribute Table (VTSI) (VTS_EVOB_ATRT) Backup of VTSI VTS EVOB Information Table (VTSI_BUP) (VTS_EVOBIT)
- 29. VSTI Management Table Field Name Contents Bytes VTS_ID VTS Identifier 12 VTSI_EA End Address of VTSI 4 VERN Version Number 2 VTS_CAT VTS Category 4 VTSI_MAT_EA End Address of VTSI_MAT 4 End Address of VTS_EVOB_ATRT_SA 4 VTSI_EVOB_ATRT End Address of VTS_EVOBIT_SA 4 VTS_EVOBIT
- 30. VTSI EVOB Attribute Table Consists of information about every EVOB in the Primary Video Set Table contains: EVOB Attribute Information Search Pointer for an EVOB Attribute Actual Attributes Note Same Attributes may be shared between multiple EVOBs.
- 31. VTSI EVOB Attribute Table Salient Attributes Main Video/Sub Video Attributes LUMA Value for Sub Video Main Audio/Sub Audio stream attributes Down-mix Coefficient Table for Audio Sub Picture stream attributes Sub picture palette for SD/HD
- 32. VTSI EVOB Information Table Contains the information of every EVOB under the primary video set. Table is similar in structure to EVOB Attribute table. Contains: EVOB Information Table Search Pointer Actual EVOB Information
- 33. VTSI EVOB Information Table Salient field in the table Presentation Start/End Time First Search Pointer of the current EVOB Last Search Pointer of the Previous EVOB Audio Stop Time for the Audio stream Audio gap length for the Audio stream
- 34. The Next in the List VTSI Primary Primary Time Map Video Set Audio/Video P-EVOB Substitute Audio/Video Secondary Substitute Time Map st net no C dec na v d A Video Set Audio Secondary Audio/Video S-EVOB
- 35. VTS Time Map Information Time Map #1 (TMAP #1) Video Title Set Map Information (VTS_TMAP) … Backup of VTS Map Information Time Map #n (VTS_TMAP_BUP) (TMAP #n)
- 36. VTS Time Map Information Consists of Time map information Consists of one or more TMAP which is composed of a file Table contains: General Information Search Pointer for an EVOB Attribute Actual Time Information
- 37. VTS Time Map Information Is used to convert a given time to the address of the EVOBU. One TMAPI for one EVOB in a contiguous block is stored as one TMAP entry in the table. TMAP is aligned on the boundary between logical blocks.
- 38. # UB OVE n# T N B OVE E # UB OVE 3 # T N B OVE E #1 TMAP E # UB OVE 3 # T N B OVE E # UB OVE 1 # T N B OVE TMAP for Contiguous blocks
- 39. TMAP for Interleaved blocks TMAP Table ILV Block ILVU Info EVOBU_ENT#1_1 EVOBU#1_1 ILVU_ENT#2_2 EVOBU_ENT#1_2 EVOBU#1_2 TMAP #1 ... TMPA #2 ILVUI EVOBU_ENT#2_1 EVOBU#2_1 ILVU_ENT#1_2 EVOBU_ENT#2_2 EVOBU#2_2
- 40. The Next in the List VTSI Primary Primary Time Map Video Set Audio/Video P-EVOB Substitute Audio/Video Secondary Substitute Time Map st net no C dec na v d A Video Set Audio Secondary Audio/Video S-EVOB
- 41. Primary Enhanced VOB Contains the Presentation Data and a part of the Navigation Data Presentation Data contains: Main/Sub Video & Audio data Sub Picture data Advanced Data The Navigation Data inside P-EVOB: General Control Information (GCI) Data Search Information (DSI)
- 42. Primary Enhanced VOB Two kinds, one for Std contents & other for Advanced VTS Two categories (based on allocation) Contiguous Block Interleaved Block Recording area of the Presentation Data is called as a P-EVOB set (P- EVOBS)
- 43. Primary Enhanced VOB Types Block 1 Contiguous P-EVOB 1 Block 2 Contiguous P-EVOB 2 Block 3 Contiguous P-EVOB 3 P-EVOB 4 Block 4 Interleaved P-EVOB 5 Block 5 Contiguous P-EVOB 6 P-EVOB 7 Block 6 Interleaved P-EVOB 8 P-EVOB 9 Block 7 Contiguous P-EVOB 10
- 44. How a P-EVOB Looks Like Field Pack Data (in Pack) Navigation Pack (NV_PCK) GCI and DSI Main Video Pack (VM_PCK) Video Data Sub Video Pack (VS_PCK) Video Data Main Audio Pack (AM_PCK) Audio Data Sub Audio Pack (AS_PCK) Audio Data Sub Picture Pack (SP_PCK) Sub-picture Data Advanced Pack (ADV_PCK) Archiving Data
- 45. Primary Enhanced VOB Unit A single P-EVOB can be divided into many P-EVOBU Each P-EVOBU is a sequence of packs in the recording order Order Start and end with a NV_PCK in the same P-EVOB Start with NV_PCK and end with the P-EVOB itself
- 46. Primary Enhanced VOB NV_PCK AM_PCK VM_PCK AS_PCK VS_PCK EVOBU SP_PCK EVOB#1 ADV_PCK EVOBU EVOB#2 … EVOBU … AM_PCK … VM_PCK AS_PCK EVOB#n VS_PCK EVOBU SP_PCK ADV_PCK
- 47. The Next in the List VTSI Primary Primary Time Map Video Set Audio/Video P-EVOB Substitute Audio/Video Secondary Substitute Time Map st net no C dec na v d A Video Set Audio Secondary Audio/Video S-EVOB
- 48. Secondary Enhanced VOB Contains the Presentation Data and a part of the Navigation Data Presentation Data contains: Secondary Video & Audio data Substitute Video & Audio data Substitute Audio The Navigation Data inside P-EVOB: General Control Information (GCI) Data Search Information (DSI)
- 49. Secondary Enhanced VOB Two kinds, one including a Video stream, other excluding it EVOB including a Video stream: Main Audio/Video Stream (AM/VM Packs) Sub Audio/Video Stream (AS/VS Packs) EVOB excluding a Video stream: Main Audio Stream (AM_PCK) Sub Audio Stream (AS_PCK)
- 50. Secondary EVOB Structure NV_PCK NV_PCK AM_PCK AS_PCK VM_PCK VS_PCK AM_PCK AS_PCK EVOBU VM_PCK VS_PCK AM_PCK AS_PCK VM_PCK EVOBU VS_PCK … EVOBU … AS_PCK AM_PCK … VS_PCK VM_PCK AS_PCK AM_PCK EVOBU VS_PCK VM_PCK AS_PCK AM_PCK VS_PCK VM_PCK Including Video Stream
- 51. Secondary EVOB Structure NV_PCK NV_PCK AM_PCK AS_PCK AM_PCK AS_PCK AM_PCK AS_PCK EVOBU AM_PCK AS_PCK AM_PCK AS_PCK AM_PCK EVOBU AS_PCK … EVOBU … AS_PCK AM_PCK … AS_PCK AM_PCK AS_PCK AM_PCK EVOBU AS_PCK AM_PCK AS_PCK AM_PCK AS_PCK AM_PCK Excluding Video Stream