{agenda} HTML WG media telecon 2012-10-09 - media source extension action and bugs from Paul Cotton on 2012-10-07 (public-html-media@w3.org from October 2012)

From: Paul Cotton <Paul.Cotton@microsoft.com>
Date: Sun, 7 Oct 2012 10:11:19 +0000
To: "public-html-media@w3.org" <public-html-media@w3.org>
CC: "Aaron Colwell <acolwell@google.com> (acolwell@google.com)" <acolwell@google.com>, Adrian Bateman <adrianba@microsoft.com>, John Simmons <johnsim@microsoft.com>, Mark Watson <watsonm@netflix.com>
Message-ID: <AB5704B0EEC35B4691114DC04366B37F16B6822D@TK5EX14MBXC289.redmond.corp.microsoft.>
The HTML WG media teleconference meeting will occur on 2012-10-09 for up to 60 minutes from 15:00Z to 16:00Z.



http://timeanddate.com/s/29ut



Tokyo midnight, Amsterdam/Oslo 17:00, London/Dublin 16:00, New Jersey/York 11:00, Kansas City 10:00, Seattle/San Francisco 08:00.



Chair of the meeting: Paul Cotton

Scribe: TBD



(See the end of this email for dial-in and IRC info.)



== Agenda ==



1. Roll call, introductions and selection of scribe



2. Previous meeting minutes

http://www.w3.org/2012/09/25-html-media-minutes.html



3. Review of action items

https://www.w3.org/html/wg/media/track/

Note: None currently.



4. TPAC meeting plans

http://lists.w3.org/Archives/Public/public-html-media/2012Sep/0046.html



5. Baseline documents and Bugzilla information



a) Media Source Extensions editor's draft:

http://dvcs.w3.org/hg/html-media/raw-file/tip/media-source/media-source.html

Status as of Oct 7:  Last updated in Oct 1.

http://lists.w3.org/Archives/Public/public-html-media/2012Oct/0002.html



Bug 18578 <https://www.w3.org/Bugs/Public/show_bug.cgi?id=18578>

- Removed the special handling for empty sourceBuffers in

removeSourceBuffer() algorithm since it redundant with the "not found" case.



Bug 18589 <https://www.w3.org/Bugs/Public/show_bug.cgi?id=18589>

- Updated failed attach text run the "If the media data cannot be fetched

at all ..." steps of the resource fetch algorithm.



Bug 18633 <https://www.w3.org/Bugs/Public/show_bug.cgi?id=18633>

- Fixed addsourcebuffer & removesourcebuffer event links.



Bug 18708 <https://www.w3.org/Bugs/Public/show_bug.cgi?id=18708>

- Updated append() algorithm to transition from "ended" to "open" and fire

a sourceopen event.



Bug 18634 <https://www.w3.org/Bugs/Public/show_bug.cgi?id=18634>

- Updated detach algorithm to only fire removesourcebuffer once when all

the SourceBuffers are removed.



- Added steps for activeSourceBuffer to detach algorithm.



- Added missing "queue a task to fire and event named ..." steps to various

steps in section 3.3.5.



b) Media Source Extension bugs:

http://tinyurl.com/6pdnzej

Status as of Oct 7: 23 bugs



6. Actions from previous meeting



a) Bug 18400: Define and document timestamp heuristics

https://www.w3.org/Bugs/Public/show_bug.cgi?id=18400
Status from last meeting:  “Adrian working on this one and still pending”.



b) Bug 17000: Define a capability detection mechanism

https://www.w3.org/Bugs/Public/show_bug.cgi?id=17000

Status from last meeting: “John and Adrian to discuss this item”.



d) Bug 17002: Specify SourceID to AudioTrack.id & VideoTrack.id mappings

https://www.w3.org/Bugs/Public/show_bug.cgi?id=17002
Status from last meeting: “Question is still outstanding and we will have to track this”.
No progress on the HTML5 bug:
https://www.w3.org/Bugs/Public/show_bug.cgi?id=18971


e) Bug 17006: <track> Setting track language & kind when the information is in a manifest

https://www.w3.org/Bugs/Public/show_bug.cgi?id=17006
Status from last meeting: “Aaron will continue to do research on 17006”.



f) Bug 17094: Define segment formats for MPEG2-TS

https://www.w3.org/Bugs/Public/show_bug.cgi?id=17094

Status from last meeting: Lots of discussion.  Latest email containing Q&A is at:

http://lists.w3.org/Archives/Public/public-html-media/2012Sep/0050.html



g) [Bug 18962] New: Allow appending with XHR

https://www.w3.org/Bugs/Public/show_bug.cgi?id=18962

[Bug 18963] New: Provide a mechanism for rate limiting appending

https://www.w3.org/Bugs/Public/show_bug.cgi?id=18963

Status from previous meeting:  Discussion but no conclusions on these two new bugs.



h) [Bug 18920] New: addSourceBuffer parameter type should be optional

https://www.w3.org/Bugs/Public/show_bug.cgi?id=18920

Status from previous meeting: Several people indicated support for early failure.



i) [Bug 18709]  Add SourceBuffer.remove() method

https://www.w3.org/Bugs/Public/show_bug.cgi?id=18709

Status from previous meeting:  Support for proposed change.



j) [Bug 18601] Contradictory requirements for initialization segments

https://www.w3.org/Bugs/Public/show_bug.cgi?id=18601

Status from previous meeting: “I think we may want to wait until we decide what we will do about MPEG2 TS”.



7.  Recent bugs for discussion



a) [Bug 18921] New: append(data) should accept any part of media segment

https://www.w3.org/Bugs/Public/show_bug.cgi?id=18921



b) [Bug 18922] New: Add a parser free, codec agnostic example

https://www.w3.org/Bugs/Public/show_bug.cgi?id=18922



c) [Bug 18933] New: Segment byte boundaries are not defined

https://www.w3.org/Bugs/Public/show_bug.cgi?id=18933



d) [Bug 19300] New: Remove transition from "ended" to "open" on seek

http://lists.w3.org/Archives/Public/public-html-media/2012Oct/0016.html



8. Other bugs for discussion



9. Other Business



10. Chair and Scribe for next meeting



11. Adjournment



== Dial-in and IRC Details ==



Zakim teleconference bridge:

   +1.617.761.6200, conference 63342 ("media")

https://www.w3.org/Guide/1998/08/teleconference-calendar#s_5366



Supplementary IRC chat (logged):

   #html-media on irc.w3.org port 6665 or port 80



Paul Cotton, Microsoft Canada
17 Eleanor Drive, Ottawa, Ontario K2E 6A3
Tel: (425) 705-9596 Fax: (425) 936-7329

ID▲<https://www.w3.org/Bugs/Public/buglist.cgi?bug_file_loc=&bug_file_loc_type=allwordssubstr&bug_id=&bug_id_type=anyexact&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&chfieldfrom=&chfieldto=Now&chfieldvalue=&component=Media%20Source%20Extensions&email1=&email2=&emailtype1=substring&emailtype2=substring&field0-0-0=noop&keywords=&keywords_type=allwords&longdesc=&longdesc_type=allwordssubstr&product=HTML%20WG&query_format=advanced&short_desc=&short_desc_type=allwordssubstr&status_whiteboard=&status_whiteboard_type=allwordssubstr&type0-0-0=noop&value0-0-0=&votes=&order=bug_id%20DESC&query_based_on=>

Opened▲<https://www.w3.org/Bugs/Public/buglist.cgi?bug_file_loc=&bug_file_loc_type=allwordssubstr&bug_id=&bug_id_type=anyexact&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&chfieldfrom=&chfieldto=Now&chfieldvalue=&component=Media%20Source%20Extensions&email1=&email2=&emailtype1=substring&emailtype2=substring&field0-0-0=noop&keywords=&keywords_type=allwords&longdesc=&longdesc_type=allwordssubstr&product=HTML%20WG&query_format=advanced&short_desc=&short_desc_type=allwordssubstr&status_whiteboard=&status_whiteboard_type=allwordssubstr&type0-0-0=noop&value0-0-0=&votes=&order=opendate%20DESC%2Cchangeddate%20DESC%2Cassigned_to%2Cbug_status%2Cpriority%2Cbug_id&query_based_on=>

Changed▼<https://www.w3.org/Bugs/Public/buglist.cgi?bug_file_loc=&bug_file_loc_type=allwordssubstr&bug_id=&bug_id_type=anyexact&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&chfieldfrom=&chfieldto=Now&chfieldvalue=&component=Media%20Source%20Extensions&email1=&email2=&emailtype1=substring&emailtype2=substring&field0-0-0=noop&keywords=&keywords_type=allwords&longdesc=&longdesc_type=allwordssubstr&product=HTML%20WG&query_format=advanced&short_desc=&short_desc_type=allwordssubstr&status_whiteboard=&status_whiteboard_type=allwordssubstr&type0-0-0=noop&value0-0-0=&votes=&order=changeddate%2Copendate%2Cassigned_to%2Cbug_status%2Cpriority%2Cbug_id&query_based_on=>

Sev<https://www.w3.org/Bugs/Public/buglist.cgi?bug_file_loc=&bug_file_loc_type=allwordssubstr&bug_id=&bug_id_type=anyexact&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&chfieldfrom=&chfieldto=Now&chfieldvalue=&component=Media%20Source%20Extensions&email1=&email2=&emailtype1=substring&emailtype2=substring&field0-0-0=noop&keywords=&keywords_type=allwords&longdesc=&longdesc_type=allwordssubstr&product=HTML%20WG&query_format=advanced&short_desc=&short_desc_type=allwordssubstr&status_whiteboard=&status_whiteboard_type=allwordssubstr&type0-0-0=noop&value0-0-0=&votes=&order=bug_severity%2Copendate%2Cchangeddate%20DESC%2Cassigned_to%2Cbug_status%2Cpriority%2Cbug_id&query_based_on=>

Pri▲<https://www.w3.org/Bugs/Public/buglist.cgi?bug_file_loc=&bug_file_loc_type=allwordssubstr&bug_id=&bug_id_type=anyexact&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&chfieldfrom=&chfieldto=Now&chfieldvalue=&component=Media%20Source%20Extensions&email1=&email2=&emailtype1=substring&emailtype2=substring&field0-0-0=noop&keywords=&keywords_type=allwords&longdesc=&longdesc_type=allwordssubstr&product=HTML%20WG&query_format=advanced&short_desc=&short_desc_type=allwordssubstr&status_whiteboard=&status_whiteboard_type=allwordssubstr&type0-0-0=noop&value0-0-0=&votes=&order=priority%20DESC%2Copendate%2Cchangeddate%20DESC%2Cassigned_to%2Cbug_status%2Cbug_id&query_based_on=>

OS<https://www.w3.org/Bugs/Public/buglist.cgi?bug_file_loc=&bug_file_loc_type=allwordssubstr&bug_id=&bug_id_type=anyexact&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&chfieldfrom=&chfieldto=Now&chfieldvalue=&component=Media%20Source%20Extensions&email1=&email2=&emailtype1=substring&emailtype2=substring&field0-0-0=noop&keywords=&keywords_type=allwords&longdesc=&longdesc_type=allwordssubstr&product=HTML%20WG&query_format=advanced&short_desc=&short_desc_type=allwordssubstr&status_whiteboard=&status_whiteboard_type=allwordssubstr&type0-0-0=noop&value0-0-0=&votes=&order=op_sys%2Copendate%2Cchangeddate%20DESC%2Cassigned_to%2Cbug_status%2Cpriority%2Cbug_id&query_based_on=>

Assignee▲<https://www.w3.org/Bugs/Public/buglist.cgi?bug_file_loc=&bug_file_loc_type=allwordssubstr&bug_id=&bug_id_type=anyexact&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&chfieldfrom=&chfieldto=Now&chfieldvalue=&component=Media%20Source%20Extensions&email1=&email2=&emailtype1=substring&emailtype2=substring&field0-0-0=noop&keywords=&keywords_type=allwords&longdesc=&longdesc_type=allwordssubstr&product=HTML%20WG&query_format=advanced&short_desc=&short_desc_type=allwordssubstr&status_whiteboard=&status_whiteboard_type=allwordssubstr&type0-0-0=noop&value0-0-0=&votes=&order=assigned_to%20DESC%2Copendate%2Cchangeddate%20DESC%2Cbug_status%2Cpriority%2Cbug_id&query_based_on=>

Status▲<https://www.w3.org/Bugs/Public/buglist.cgi?bug_file_loc=&bug_file_loc_type=allwordssubstr&bug_id=&bug_id_type=anyexact&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&chfieldfrom=&chfieldto=Now&chfieldvalue=&component=Media%20Source%20Extensions&email1=&email2=&emailtype1=substring&emailtype2=substring&field0-0-0=noop&keywords=&keywords_type=allwords&longdesc=&longdesc_type=allwordssubstr&product=HTML%20WG&query_format=advanced&short_desc=&short_desc_type=allwordssubstr&status_whiteboard=&status_whiteboard_type=allwordssubstr&type0-0-0=noop&value0-0-0=&votes=&order=bug_status%20DESC%2Copendate%2Cchangeddate%20DESC%2Cassigned_to%2Cpriority%2Cbug_id&query_based_on=>

Resolution<https://www.w3.org/Bugs/Public/buglist.cgi?bug_file_loc=&bug_file_loc_type=allwordssubstr&bug_id=&bug_id_type=anyexact&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&chfieldfrom=&chfieldto=Now&chfieldvalue=&component=Media%20Source%20Extensions&email1=&email2=&emailtype1=substring&emailtype2=substring&field0-0-0=noop&keywords=&keywords_type=allwords&longdesc=&longdesc_type=allwordssubstr&product=HTML%20WG&query_format=advanced&short_desc=&short_desc_type=allwordssubstr&status_whiteboard=&status_whiteboard_type=allwordssubstr&type0-0-0=noop&value0-0-0=&votes=&order=resolution%2Copendate%2Cchangeddate%20DESC%2Cassigned_to%2Cbug_status%2Cpriority%2Cbug_id&query_based_on=>

Summary<https://www.w3.org/Bugs/Public/buglist.cgi?bug_file_loc=&bug_file_loc_type=allwordssubstr&bug_id=&bug_id_type=anyexact&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&chfieldfrom=&chfieldto=Now&chfieldvalue=&component=Media%20Source%20Extensions&email1=&email2=&emailtype1=substring&emailtype2=substring&field0-0-0=noop&keywords=&keywords_type=allwords&longdesc=&longdesc_type=allwordssubstr&product=HTML%20WG&query_format=advanced&short_desc=&short_desc_type=allwordssubstr&status_whiteboard=&status_whiteboard_type=allwordssubstr&type0-0-0=noop&value0-0-0=&votes=&order=short_desc%2Copendate%2Cchangeddate%20DESC%2Cassigned_to%2Cbug_status%2Cpriority%2Cbug_id&query_based_on=>

17000<https://www.w3.org/Bugs/Public/show_bug.cgi?id=17000>

2012-05-08

2012-06-05

nor

P3

All

adrianba@microsoft.com

NEW

---

Define a capability detection mechanism

17002<https://www.w3.org/Bugs/Public/show_bug.cgi?id=17002>

2012-05-08

2012-09-25

nor

P2

All

adrianba@microsoft.com

NEW

---

Specify a mechanism to determine which SourceBuffer an AudioTrack,VideoTrack, or TextTrack belong to.

17006<https://www.w3.org/Bugs/Public/show_bug.cgi?id=17006>

2012-05-08

2012-06-05

nor

P2

All

adrianba@microsoft.com

NEW

---

<track> Setting track language & kind when the information is in a manifest

17094<https://www.w3.org/Bugs/Public/show_bug.cgi?id=17094>

2012-05-18

2012-09-07

nor

P2

All

b.lund@cablelabs.com

ASSI

---

Define segment formats for MPEG2-TS

18400<https://www.w3.org/Bugs/Public/show_bug.cgi?id=18400>

2012-07-25

2012-08-14

nor

P2

Linu

watsonm@netflix.com

ASSI

---

Define and document timestamp heuristics

18575<https://www.w3.org/Bugs/Public/show_bug.cgi?id=18575>

2012-08-15

2012-08-20

nor

P2

Linu

adrianba@microsoft.com

NEW

---

Section 2. Source Buffer Model should be non-normative

18587<https://www.w3.org/Bugs/Public/show_bug.cgi?id=18587>

2012-08-16

2012-09-24

nor

P2

Linu

acolwell@chromium.org

ASSI

---

Define clearly what data is removed when setting an explicit duration

18590<https://www.w3.org/Bugs/Public/show_bug.cgi?id=18590>

2012-08-16

2012-08-16

nor

P2

Linu

adrianba@microsoft.com

NEW

---

Firing an event is sometimes missing a target and "queue a task"

18592<https://www.w3.org/Bugs/Public/show_bug.cgi?id=18592>

2012-08-16

2012-09-19

nor

P2

Linu

adrianba@microsoft.com

NEW

---

How much is "enough data to ensure uninterrupted playback"

18601<https://www.w3.org/Bugs/Public/show_bug.cgi?id=18601>

2012-08-17

2012-08-17

nor

P2

Linu

acolwell@chromium.org

ASSI

---

Contradictory requirements for initialization segments

18615<https://www.w3.org/Bugs/Public/show_bug.cgi?id=18615>

2012-08-17

Fri 18:01

nor

P2

Linu

adrianba@microsoft.com

NEW

---

Define how SourceBuffer.buffered maps to HTMLMediaElement.buffered

18635<https://www.w3.org/Bugs/Public/show_bug.cgi?id=18635>

2012-08-21

2012-08-21

nor

P2

Linu

adrianba@microsoft.com

NEW

---

HTMLMediaElement seeking algorithm integration

18642<https://www.w3.org/Bugs/Public/show_bug.cgi?id=18642>

2012-08-21

2012-09-21

nor

P2

Linu

adrianba@microsoft.com

NEW

---

Handle timestamp overflow in append(data)

18666<https://www.w3.org/Bugs/Public/show_bug.cgi?id=18666>

2012-08-23

2012-09-17

nor

P2

Linu

adrianba@microsoft.com

NEW

---

Define what HTMLMediaElement.seekable returns

18709<https://www.w3.org/Bugs/Public/show_bug.cgi?id=18709>

2012-08-27

2012-09-24

nor

P2

Linu

adrianba@microsoft.com

NEW

---

Add SourceBuffer.remove() method

18920<https://www.w3.org/Bugs/Public/show_bug.cgi?id=18920>

2012-09-19

2012-09-24

nor

P2

All

adrianba@microsoft.com

NEW

---

addSourceBuffer parameter type should be optional

18921<https://www.w3.org/Bugs/Public/show_bug.cgi?id=18921>

2012-09-19

2012-09-22

nor

P2

All

adrianba@microsoft.com

NEW

---

append(data) should accept any part of media segment

18922<https://www.w3.org/Bugs/Public/show_bug.cgi?id=18922>

2012-09-19

2012-09-20

nor

P2

All

adrianba@microsoft.com

NEW

---

Add a parser free, codec agnostic example

18933<https://www.w3.org/Bugs/Public/show_bug.cgi?id=18933>

2012-09-20

2012-09-24

nor

P2

All

adrianba@microsoft.com

NEW

---

Segment byte boundaries are not defined

18960<https://www.w3.org/Bugs/Public/show_bug.cgi?id=18960>

2012-09-21

2012-09-24

nor

P2

Linu

adrianba@microsoft.com

NEW

---

Define how AudioTrack.id & VideoTrack.id are generated

18962<https://www.w3.org/Bugs/Public/show_bug.cgi?id=18962>

2012-09-21

2012-09-27

nor

P2

Linu

adrianba@microsoft.com

NEW

---

Allow appending with XHR

18963<https://www.w3.org/Bugs/Public/show_bug.cgi?id=18963>

2012-09-21

2012-09-24

nor

P2

Linu

adrianba@microsoft.com

NEW

---

Provide a mechanism for rate limiting appending

19300<https://www.w3.org/Bugs/Public/show_bug.cgi?id=19300>

Fri 18:28

Fri 18:28

nor

P2

Linu

acolwell@chromium.org

ASSI

---

Remove transition from "ended" to "open" on seek

23 bugs found.
Received on Sunday, 7 October 2012 10:11:56 UTC