- From: Kazuyuki Ashimura <ashimura@w3.org>
- Date: Fri, 26 Aug 2011 01:48:36 +0900
- To: public-web-and-tv@w3.org
FYI, I've just notice a message posted by Rob Manson [a] on who is doing what with regards to accessing audio and video streams, and think it might be somewhat useful for the MPTF discussion. [a] http://lists.w3.org/Archives/Public/public-device-apis/2011Jul/0112.html Thanks, Kazuyuki On 08/26/2011 01:38 AM, Kazuyuki Ashimura wrote: > available at: > http://www.w3.org/2011/08/25-webtv-minutes.html > > also as text below. > > Kazuyuki > > --- > [1]W3C > > [1] http://www.w3.org/ > > - DRAFT - > > Media Pipeline Task Force Teleconference > > 25 Aug 2011 > > [2]Agenda > > [2] http://www.w3.org/2011/webtv/wiki/MPTF/Agenda_Telco_25th_August_2011 > > See also: [3]IRC log > > [3] http://www.w3.org/2011/08/25-webtv-irc > > Attendees > > Present > Kazuyuki, davidmays_JanL, Clarke, Bob, gondo, Russell, > duncanr, Giuseppe, Steven, Mark_Vickers, aizu, igarashi, > Mark_Watson, Juhani > > Regrets > Chair > Clarke > > Scribe > kaz > > Contents > > * [4]Topics > 1. [5]f2f > 2. [6]issue review > * [7]Summary of Action Items > _________________________________________________________ > > f2f > > clarke: anything to add? > ... comments on the ML is welcome > > issue review > > clarke: any questions? > > (nop) > > issue-44? > > <trackbot> ISSUE-44 -- Continuous Streaming by Continuous Playlist > -- raised > > <trackbot> [8]http://www.w3.org/2011/webtv/track/issues/44 > > [8] http://www.w3.org/2011/webtv/track/issues/44 > > <Clarke> issue 44: > [9]http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/Continuou > s_Streaming_2' > > [9] http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/Continuous_Streaming_2' > > -> > [10]http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/Continuo > us_Streaming_2 issue-44 > > [10] http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/Continuous_Streaming_2 > > clarke: any comments? > > Mark Vickers joined > > clarke: 44 is playlist > > <scribe> ACTION: clarke to change the title of issue-44 from > "continuous streaming 2" to "playlist" [recorded in > [11]http://www.w3.org/2011/08/25-webtv-minutes.html#action01] > > <trackbot> Created ACTION-73 - Change the title of issue-44 from > "continuous streaming 2" to "playlist" [on Clarke Stevens - due > 2011-09-01]. > > bob: live streaming is supported by HTML5 > ... I'll add dependency > > issue-45? > > <trackbot> ISSUE-45 -- Time Synchronization (continuous stream) -- > raised > > <trackbot> [12]http://www.w3.org/2011/webtv/track/issues/45 > > [12] http://www.w3.org/2011/webtv/track/issues/45 > > clarke: time synchronization > ... not sure a use case for MPTF > > -> > [13]http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/Time_Syn > chronization issue-45 > > [13] http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/Time_Synchronization > > issue-46? > > <trackbot> ISSUE-46 -- Program Boundary Identification in Continuous > Streams -- raised > > <trackbot> [14]http://www.w3.org/2011/webtv/track/issues/46 > > [14] http://www.w3.org/2011/webtv/track/issues/46 > > clarke: program boundary > > -> > [15]http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/Program_ > Boundary issue-46 > > [15] http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/Program_Boundary > > clarke: comments/additions? > > bob: pointed out last week is timed text track mechanism > > clarke: will add a note > ... any other comments? > > (nop) > > issue-37? > > <trackbot> ISSUE-37 -- View-Port support for Video Window -- raised > > <trackbot> [16]http://www.w3.org/2011/webtv/track/issues/37 > > [16] http://www.w3.org/2011/webtv/track/issues/37 > > <Clarke> [17]issue-37 > > [17] http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/ViewPort-Support > > clarke: are we ready to accept this? > > <igarashi> zakim p7 is igarashi > > clarke: couple ways for us to consider this > ... suggest we go ahead and accept this > ... any comments? > > (nop) > > RESOLUTION: accept issue-37 > > issue-45? > > <trackbot> ISSUE-45 -- Time Synchronization (continuous stream) -- > raised > > <trackbot> [18]http://www.w3.org/2011/webtv/track/issues/45 > > [18] http://www.w3.org/2011/webtv/track/issues/45 > > jan: would remove "This is not yet a real use case." :) > > -> > [19]http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/Time_Syn > chronization issue-45 > > [19] http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/Time_Synchronization > > jan: not sure how to phrase this > ... in a continuous stream what is the semantics of video tags > ... text under bullet "1" is good description > > clarke: ok > ... next is content protection (issue-39) > > issue-39? > > <trackbot> ISSUE-39 -- TV Services and Media Transport Mapping -- > raised > > <trackbot> [20]http://www.w3.org/2011/webtv/track/issues/39 > > [20] http://www.w3.org/2011/webtv/track/issues/39 > > <Clarke> Issue: > [21]http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/TV_servi > ces_transport_mapping > > [21] http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/TV_services_transport_mapping > > <trackbot> Created ISSUE-47 - > Http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/TV_services_ > transport_mapping ; please complete additional details at > [22]http://www.w3.org/2011/webtv/track/issues/47/edit . > > [22] http://www.w3.org/2011/webtv/track/issues/47/edit > > -> > [23]http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/TV_servi > ces_transport_mapping issue-39 > > [23] http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/TV_services_transport_mapping > > bob: how UAs identify audio tracks > ... type of media stream, e.g., MPEG2 TS, MPEG4 ISOBMFF, DASH > ... DOM API specified > ... the use case is in-band track types > ... will update the use case > > clarke: topic for f2f > > bob: will commit before the f2f > > clarke: any other comments? > > (nop) > > jan: 45 is updated > > issue-40 > > issue-40? > > <trackbot> ISSUE-40 -- Content delivery in distribution windows -- > raised > > <trackbot> [24]http://www.w3.org/2011/webtv/track/issues/40 > > [24] http://www.w3.org/2011/webtv/track/issues/40 > > -> > [25]http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/Delivery > _in_distribution_windows issue-40 > > [25] http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/Delivery_in_distribution_windows > > bob: content protection discussion > ... more objective space > ... from Cable industry perspective, content owners are going to > require for content protection > ... delivery windows > ... use case is commercial content delivery > > clarke: just on definition > > bob: traditional definition > ... could be captured within some of the other my use cases > > jan: distribution window is DRM perspective > > bob: motivation here is content owner has demand > > clarke: a specific Web page linked to DRM? > > bob: number of implication I have to address > ... how HTML5 UA should support this > ... business/commercial need should be addressed > > kaz: good topic for workshop as well > > clarke: bob submitted this topic to the workshp > > bob: my paper covers this > > kaz: will talk with the PC guys and suggest we talk about this > during the ws > > juhani: question about issue-40, etc. > ... what to standardize? > ... interested in content security technical requirement > > bob: will put that into the use case > ... also mention what needs to be standardized > > juhani: ok > > issue-41? > > <trackbot> ISSUE-41 -- Support of Content Owner Property Rights -- > raised > > <trackbot> [26]http://www.w3.org/2011/webtv/track/issues/41 > > [26] http://www.w3.org/2011/webtv/track/issues/41 > > -> > [27]http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/Content_ > owner_rights issue-41 > > [27] http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/Content_owner_rights > > bob: required by UltraViolet or DECE > ... DECE has specific technical requirements > ... consumer contents > > <JanL> +q > > bob: we'd like to cover DECE's requirements > > clarke: ok > > <JanL> -q > > jan: the link in the use case is broken > ... "Common content security technical requirements." > > igarashi: my assumption is HTML just render > > <Clarke> Here's a link to the common content protection > requirements: > [28]http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/Delivery > _in_distribution_windows/Common_content_secuirty_requirements > > [28] http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/Delivery_in_distribution_windows/Common_content_secuirty_requirements > > igarashi: no consideration on this kind of offline processing? > > bob: good point > ... the case of downloading content case > ... streaming is most relevant for HTML5 > ... good observation to think about both streaming and downloading > > igarashi: good to see both the cases > ... there are technical differences > > bob: agree > > clarke: the correct URL for the broken link of "Common content > security technical requirements." is > [29]http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/Delivery > _in_distribution_windows/Common_content_secuirty_requirements > > [29] http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/Delivery_in_distribution_windows/Common_content_secuirty_requirements > > issue-42? > > <trackbot> ISSUE-42 -- Content delivery to personal computers -- > raised > > <trackbot> [30]http://www.w3.org/2011/webtv/track/issues/42 > > [30] http://www.w3.org/2011/webtv/track/issues/42 > > -> > [31]http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/Delivery > _to_pc issue-42 > > [31] http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/Delivery_to_pc > > bob: both aspects are important > ... An off-the-shelf browser such as Chrome, Firefox, Internet > Explorer, Opera or Safari. > ... and An application incorporating a browser downloaded from a > service provider. > > issue-43? > > <trackbot> ISSUE-43 -- Content delivery to retail consumer > electronics devices -- raised > > <trackbot> [32]http://www.w3.org/2011/webtv/track/issues/43 > > [32] http://www.w3.org/2011/webtv/track/issues/43 > > -> > [33]http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/Delivery > _to_ce issue-43 > > [33] http://www.w3.org/2011/webtv/wiki/MPTF/MPTF_Discussions/Delivery_to_ce > > bob: retail consumer electronics device with an embedded application > ... more specialized > ... (explains motivation) > > davidmays: HTML5 UA should identify what content protection > capabilities they have so that applications can present appropriate > content based on that level of protection capability > > bob: 1st one is general web delivery > ... then content protection > ... content protection is good or bad > > <davidmays> HTML5 UA should identify what content protection > capabilities they have so that applications can present appropriate > content based on that level of protection capability > > giuseppe: what if browsers are not shipped with DRM capability? > > juhani: I'm for the requirements > ... DRM support should be useful > ... how to solve this problem should be defined > > bob: plugins can be used by UAs for that purpose > ... however, there is a link > > <giuseppe> kaz is mark watson > > giuseppe: plugin for DRM is wrong point to start... > ... do you need fall-back mechanism? > ... video element itself is not aware if plugins handle it > > bob: we use video element for content protection > ... existing video tag provides the capability > > giuseppe: video tag itself handles rendering, not necessarily aware > of content protection > > jan: how do we recommend extending video tag's capability itself > ... good topic for the workshop > > giuseppe: if you want to standardize, need to consider who does what > > clarke: we'll continue the discussion next week > > <Clarke> thanks, kaz > > thanks, Clarke! > > <Clarke> -Clarke > > <Russell_Berkoff> thanks > > Summary of Action Items > > [NEW] ACTION: clarke to change the title of issue-44 from > "continuous streaming 2" to "playlist" [recorded in > [34]http://www.w3.org/2011/08/25-webtv-minutes.html#action01] > > [End of minutes] > _________________________________________________________ > > > Minutes formatted by David Booth's [35]scribe.perl version 1.136 > ([36]CVS log) > $Date: 2011/08/25 16:21:49 $ > > [35] http://dev.w3.org/cvsweb/~checkout~/2002/scribe/scribedoc.htm > [36] http://dev.w3.org/cvsweb/2002/scribe/ > > -- Kaz Ashimura, W3C Staff Contact for Web&TV, MMI and Voice Tel: +81 466 49 1170
Received on Thursday, 25 August 2011 16:48:28 UTC