ISSUE-4

predefined track names

Should we pre-define some track names?

State:
OPEN
Product:
Raised by:
Silvia Pfeiffer
Opened on:
2009-03-04
Description:
Source: http://lists.w3.org/Archives/Public/public-media-fragment/2009Mar/0008.html

We can consider it is up to the container format to define the track names. We could recommend that there be a naming scheme such as video[0] ... video[n] and audio[0] ... audio[n] to address multiple a/v tracks, maybe even text[0] ... text[n]. But I don't think they make much sense - it would be better the names chosen had some semantic meaning, such as "video", "sign-language", "audio", "music", "speech", "sound-effects", "audio annotations", "subtitles-en", subtitles-de", "karaoke-en", "lyrics" etc.

And .. yes, at some point somebody should have some standard names for these - in particular for accessibility it would be nice to be able to say through the protocol "I want no audio tracks, but video and sign-language and all text tracks".

Maybe there is a scheme that we need to develop, where the codec type is also part of the naming, e.g. video.sign-language, audio.annotations, video.music etc. We haven't thought much about structure for describing tracks yet.
Related Actions Items:
Related emails:
  1. Re: Discovery of track and named fragment names (from Raphael.Troncy@cwi.nl on 2009-11-23)
  2. Media Fragments Working Group: Agenda 18 November, Telecon 1000 UTC (from Raphael.Troncy@cwi.nl on 2009-11-18)
  3. Re: Media Fragments Working Group: Agenda 07 October, Telecon 0900 UTC (from michael.hausenblas@deri.org on 2009-10-07)
  4. Re: Media Fragments Working Group: Agenda 07 October, Telecon 0900 UTC (from silviapfeiffer1@gmail.com on 2009-10-07)
  5. Media Fragments Working Group: Agenda 07 October, Telecon 0900 UTC (from Raphael.Troncy@cwi.nl on 2009-10-06)
  6. Re: Media Fragments Working Group: Agenda 30 September, Telecon 0900 UTC *NEW HOUR* (from silviapfeiffer1@gmail.com on 2009-09-30)
  7. Media Fragments Working Group: Agenda 30 September, Telecon 0900 UTC *NEW HOUR* (from Raphael.Troncy@cwi.nl on 2009-09-28)
  8. Re: minutes of 2009-09-23 teleconference (from silviapfeiffer1@gmail.com on 2009-09-25)
  9. Re: minutes of 2009-09-23 teleconference (from silviapfeiffer1@gmail.com on 2009-09-23)
  10. minutes of 2009-09-23 teleconference (from Raphael.Troncy@cwi.nl on 2009-09-23)
  11. Media Fragments Working Group: Agenda 23 September, Telecon 0900 UTC *NEW HOUR* (from Raphael.Troncy@cwi.nl on 2009-09-23)
  12. Re: Media Fragments Working Group: Agenda 9 September, Telecon 1200 UTC (from conrad@metadecks.org on 2009-09-09)
  13. RE: Media Fragments Working Group: Agenda 9 September, Telecon 1200 UTC (from davy.vandeursen@ugent.be on 2009-09-08)
  14. Media Fragments Working Group: Agenda 9 September, Telecon 1200 UTC (from Raphael.Troncy@cwi.nl on 2009-09-08)
  15. RE: Media Fragments Working Group: Agenda 2 September, Telecon 1200 UTC (from davy.vandeursen@ugent.be on 2009-09-02)
  16. Re: Media Fragments Working Group: Agenda 2 September, Telecon 1200 UTC (from michael.hausenblas@deri.org on 2009-09-01)
  17. Media Fragments Working Group: Agenda 2 September, Telecon 1200 UTC (from Raphael.Troncy@cwi.nl on 2009-09-01)
  18. Re: Media Fragments Working Group: Agenda 26 August, Telecon 1200 UTC (from tmichel@w3.org on 2009-08-25)
  19. Re: Media Fragments Working Group: Agenda 26 August, Telecon 1200 UTC (from conrad@metadecks.org on 2009-08-25)
  20. Media Fragments Working Group: Agenda 26 August, Telecon 1200 UTC (from Raphael.Troncy@cwi.nl on 2009-08-24)
  21. RE: Media Fragments Working Group: Agenda 19 August, Telecon 1200 UTC (from davy.vandeursen@ugent.be on 2009-08-19)
  22. Re: Media Fragments Working Group: Agenda 19 August, Telecon 1200 UTC (from michael.hausenblas@deri.org on 2009-08-18)
  23. Media Fragments Working Group: Agenda 19 August, Telecon 1200 UTC (from Raphael.Troncy@cwi.nl on 2009-08-18)
  24. Regrets: Media Fragments Working Group: Agenda 12 August, Telecon 1200 UTC (from golivrin@meraka.org.za on 2009-08-12)
  25. Media Fragments Working Group: Agenda 12 August, Telecon 1200 UTC (from erik.mannens@ugent.be on 2009-08-11)
  26. RE: Media Fragments Working Group: Agenda 5 August, Telecon 1200 UTC (from davy.vandeursen@ugent.be on 2009-08-04)
  27. Media Fragments Working Group: Agenda 5 August, Telecon 1200 UTC (from erik.mannens@ugent.be on 2009-08-04)
  28. Re: Media Fragments Working Group: Agenda 29 July, Telecon 1200 UTC (from michael.hausenblas@deri.org on 2009-07-29)
  29. Re: Media Fragments Working Group: Agenda 29 July, Telecon 1200 UTC (from silviapfeiffer1@gmail.com on 2009-07-29)
  30. Re: Media Fragments Working Group: Agenda 29 July, Telecon 1200 UTC (from michael.hausenblas@deri.org on 2009-07-28)
  31. RE: Media Fragments Working Group: Agenda 29 July, Telecon 1200 UTC (from davy.vandeursen@ugent.be on 2009-07-28)
  32. Media Fragments Working Group: Agenda 29 July, Telecon 1200 UTC (from erik.mannens@ugent.be on 2009-07-28)
  33. Re: Media Fragments Working Group: Agenda 22 July, Telecon 1200 UTC (from michael.hausenblas@deri.org on 2009-07-22)
  34. Media Fragments Working Group: Agenda 22 July, Telecon 1200 UTC (from erik.mannens@ugent.be on 2009-07-22)
  35. Re: Media Fragments Working Group: Agenda 15 July, Telecon 1200 UTC (from conrad@metadecks.org on 2009-07-15)
  36. Re: Media Fragments Working Group: Agenda 15 July, Telecon 1200 UTC (from silviapfeiffer1@gmail.com on 2009-07-15)
  37. Media Fragments Working Group: Agenda 15 July, Telecon 1200 UTC (from erik.mannens@ugent.be on 2009-07-15)
  38. Re: Media Fragments Working Group: Agenda 24 June, Telecon 1200 UTC (from tmichel@w3.org on 2009-06-24)
  39. Media Fragments Working Group: Agenda 24 June, Telecon 1200 UTC (from Raphael.Troncy@cwi.nl on 2009-06-24)
  40. Re: Media Fragments Working Group: Agenda 17 June, Telecon 1200 UTC (from michael.hausenblas@deri.org on 2009-06-17)
  41. Media Fragments Working Group: Agenda 17 June, Telecon 1200 UTC (from erik.mannens@ugent.be on 2009-06-17)
  42. Re: Media Fragments Working Group: Agenda 10 June, Telecon 1200 UTC (from michael.hausenblas@deri.org on 2009-06-10)
  43. RE: Media Fragments Working Group: Agenda 10 June, Telecon 1200 UTC (from davy.vandeursen@ugent.be on 2009-06-10)
  44. Re: Media Fragments Working Group: Agenda 10 June, Telecon 1200 UTC (from ylafon@w3.org on 2009-06-09)
  45. Media Fragments Working Group: Agenda 10 June, Telecon 1200 UTC (from Raphael.Troncy@cwi.nl on 2009-06-09)
  46. minutes of 2009-05-20 teleconference (from Raphael.Troncy@cwi.nl on 2009-05-20)
  47. RE: Media Fragments Working Group: Agenda 20 May, Telecon 1200 UTC (from erik.mannens@ugent.be on 2009-05-19)
  48. Media Fragments Working Group: Agenda 20 May, Telecon 1200 UTC (from Raphael.Troncy@cwi.nl on 2009-05-19)
  49. RE: Media Fragments Working Group: Agenda 13 May, Telecon 1200 UTC (from erik.mannens@ugent.be on 2009-05-13)
  50. Re: Media Fragments Working Group: Agenda 13 May, Telecon 1200 UTC (from michael.hausenblas@deri.org on 2009-05-13)
  51. RE: Media Fragments Working Group: Agenda 13 May, Telecon 1200 UTC (from davy.vandeursen@ugent.be on 2009-05-13)
  52. Media Fragments Working Group: Agenda 13 May, Telecon 1200 UTC (from Raphael.Troncy@cwi.nl on 2009-05-12)
  53. minutes of 2009-04-29 teleconference (from Raphael.Troncy@cwi.nl on 2009-04-29)
  54. Re: Media Fragments Working Group: Agenda 29 April, Telecon 1200 UTC (from conrad@metadecks.org on 2009-04-29)
  55. RE: Media Fragments Working Group: Agenda 29 April, Telecon 1200 UTC (from davy.vandeursen@ugent.be on 2009-04-29)
  56. Media Fragments Working Group: Agenda 29 April, Telecon 1200 UTC (from Raphael.Troncy@cwi.nl on 2009-04-29)
  57. Re: Someone to review my WD chapter? (from Jack.Jansen@cwi.nl on 2009-04-08)
  58. Re: Media Fragments Working Group: Agenda 08 April, Telecon 1200 UTC *NEW HOUR* (from conrad@metadecks.org on 2009-04-08)
  59. Re: Media Fragments Working Group: Agenda 08 April, Telecon 1200 UTC *NEW HOUR* (from michael.hausenblas@deri.org on 2009-04-07)
  60. Re: Someone to review my WD chapter? (from silviapfeiffer1@gmail.com on 2009-04-07)
  61. Re: Someone to review my WD chapter? (from Raphael.Troncy@cwi.nl on 2009-04-07)
  62. Media Fragments Working Group: Agenda 08 April, Telecon 1200 UTC *NEW HOUR* (from Raphael.Troncy@cwi.nl on 2009-04-07)
  63. Re: Media Fragments Working Group: Agenda 01 April, Telecon 0900 UTC (from conrad@metadecks.org on 2009-04-01)
  64. Re: Media Fragments Working Group: Agenda 01 April, Telecon 0900 UTC (from michael.hausenblas@deri.org on 2009-04-01)
  65. Media Fragments Working Group: Agenda 01 April, Telecon 0900 UTC (from Raphael.Troncy@cwi.nl on 2009-03-31)
  66. Re: Media Fragments Working Group: Agenda 25 March, Telecon 0900 UTC: ONE HOUR EARLIER !!! (from silviapfeiffer1@gmail.com on 2009-03-25)
  67. Media Fragments Working Group: Agenda 25 March, Telecon 0900 UTC: ONE HOUR EARLIER !!! (from Raphael.Troncy@cwi.nl on 2009-03-24)
  68. Re: Media Fragments Working Group: Agenda 18 March, Telecon 0900 UTC: ONE HOUR EARLIER !!! (from michael.hausenblas@deri.org on 2009-03-18)
  69. Re: Media Fragments Working Group: Agenda 18 March, Telecon 0900 UTC: ONE HOUR EARLIER !!! (from silviapfeiffer1@gmail.com on 2009-03-18)
  70. RE: Media Fragments Working Group: Agenda 18 March, Telecon 0900 UTC: ONE HOUR EARLIER !!! (from davy.vandeursen@ugent.be on 2009-03-17)
  71. Media Fragments Working Group: Agenda 18 March, Telecon 0900 UTC: ONE HOUR EARLIER !!! (from Raphael.Troncy@cwi.nl on 2009-03-17)
  72. Media Fragments Working Group: Agenda 11 March, Telecon 0900 UTC: ONE HOUR EARLIER !!! (from Raphael.Troncy@cwi.nl on 2009-03-10)
  73. Media Fragments Working Group: Agenda 11 March, Telecon 0900 UTC: ONE HOUR EARLIER !!! (from Raphael.Troncy@cwi.nl on 2009-03-10)
  74. Media Fragments Working Group: Agenda 11 March, Telecon 0900 UTC: ONE HOUR EARLIER !!! (from Raphael.Troncy@cwi.nl on 2009-03-10)
  75. Re: ABNF for fragment syntax (from Raphael.Troncy@cwi.nl on 2009-03-04)
  76. ISSUE-4 (nessy): Should we pre-define some track names? (from sysbot+tracker@w3.org on 2009-03-04)

Related notes:

2009-04-17 09:49:18: At the F2F in Barcelona it was discussed to leave the definition of standard names to a later version of media fragments. For now it should suffice that we allow container formats that are able to provide track references to address them in this way. [Silvia Pfeiffer]

2009-05-20 12:47:42: [conrad]: so i think we discussed not predefining lots of track names, but perhaps predefining "audio" and "video" only: in which case action 73 would be to change issue 4 to "Should we predefine track names for audio and video"

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Raphaël Troncy <Raphael.Troncy@cwi.nl>, Erik Mannens <erik.mannens@ibbt.be>, Chairs, Yves Lafon <ylafon@w3.org>, Thierry Michel <tmichel@w3.org>, Staff Contacts
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