Slides from session held at Barcamp Klagenfurt 2010. Video of the presentation is at http://ustre.am/:j1iT

1. Modelling Music Albums in Modern File Formats Michael Grafl @mykey_ Barcamp Klagenfurt 07.02.2010

3. iTunesLP

4. MusicDNA

5. MPEG-21 File Format (.m21)

6. MPEG-21 Digital Item

10. iTunesLP 07.02.2010 Modelling Music Albums in Modern FileFormats Michael Grafl

11. MusicDNA 07.02.2010 Modelling Music Albums in Modern FileFormats Michael Grafl

13. Has common base with MP4: "MPEG-4 ISO Base Media File Format"

14. Can be played by VLC with a small plugin

15. Includes metadata in an XML-based format: DIDL 07.02.2010 Modelling Music Albums in Modern FileFormats Michael Grafl

17. S tructured digital object

18. Uniquely identifiable

19. Binds metadata to content

21. MPEG-21 Digital Item 07.02.2010 Modelling Music Albums in Modern FileFormats Michael Grafl

23. Artist

24. Title

25. Composer, Company

26. Date, Country, Language

27. Genre

28. Copyright

29. Description

30. Homepage

31. Parental-Rating

33. Title

34. Composer, Company

35. Duration

36. Coding-Format

37. Size, Bitrate

38. Date

39. Track-Number

40. Genre

41. Copyright

42. Lyrics 07.02.2010 Modelling Music Albums in Modern FileFormats Michael Grafl

44. Based on GPAC Project on Advanced Content

45. Uses MusicBrainz.org for initial metadata

47. Based on the built-in MP4-Plugin 07.02.2010 Modelling Music Albums in Modern FileFormats Michael Grafl

49. Detect and play .m21 files

50. Show tracks in the playlist

51. Show cover art

52. Show additional metadata 07.02.2010 Modelling Music Albums in Modern FileFormats Michael Grafl

53. VLC MPEG-21-Plugin 07.02.2010 Modelling Music Albums in Modern FileFormats Michael Grafl

55. Treats the file as .mp4 07.02.2010 Modelling Music Albums in Modern FileFormats Michael Grafl

57. Add metadata (cover, lyrics, etc.)

58. Enhanced searchability

59. Technology could be used to pack an entire DVD-Video into a single file (like iTunesExtras)

60. To be released on http://sourceforge.net/projects/music-mp21/ 07.02.2010 Modelling Music Albums in Modern FileFormats Michael Grafl

61. THANK YOU FOR YOUR ATTENTION!

62. (Backup Slides)

63. MPEG-21 Part 9: File Format ftyp box: major-brand = ‘mp21’, compatible-brands = ‘mp21’. meta box: (container) handler box: hdlr = ‘mp21’ XML box: contains the MPEG-21 DID XML, with a relative URL “image.jpg” for the image Item Location: itemID = 1, extent_count = 1, extent_offset = X, extent_length = Y; Item Info: itemID = 1, item_protection_index = 0 (unused), item_name = “image.jpg”, content_type = “image/jpeg”, content_encoding = “” (binary) Media data box: JPEG Image (at file offset X, with length Y) Quelle: [3] MPEG-21 File Format: Player & Authoring SW 12.10.2009

64. mp21_creator : Architecture MPEG-21 File Format: Player & Authoring SW 12.10.2009

65. File Sizes MPEG-21 File Format: Player & Authoring SW Album: Jennifer Lopez - "Como ama una mujer" 12.10.2009

66. File Sizes (Detail) MPEG-21 File Format: Player & Authoring SW Album: Jennifer Lopez - "Como ama una mujer" 12.10.2009