Re: Proposal from HbbTV

Hi Alexander,

First, thanks for contributing sourcing solutions for the DVB use cases.
Wešve looked at your pull request (with 35 commits!) and are finding it
very
difficult to isolate the technical contributions from the editorial ones.
Plus, the sourcing spec has evolved considerably from when you started
making branches.

Could you state your technical proposals in an email to this group? It
would be best if the proposed new text used the existing document
structure so we can discuss the technical content. Donšt worry about how
to integrate with the existing ATSC focus - we can do that after agreeing
on the technical content.

Thanks,
Bob Lund




On 9/8/14, 6:17 AM, "Alexander Adolf"
<alexander.adolf@condition-alpha.com> wrote:

>Dear Members of the W3C Media Resource In-band Tracks Community Group,
> 
>My name is Alexander Adolf, and I am writing to you on behalf of the
>HbbTV Association (http://www.hbbtv.org), where I represent LG
>Electronics in the technical specification working group. We are working
>on the next version of our HbbTV specification for connected TV sets, and
>that is based on HTML5. Hence your work on a proposed mapping spec for
>the W3C HTML WG for sourcing in band media resource tracks from media
>containers into HTML is of great interest to us.
> 
>As I also happen to be the chairperson of the DVB signalling working
>group, and the editor of the DVB signalling specifications, I have been
>asked by the HbbTV colleagues to review your document, and to suggest how
>to also cover DVB services. The pull request I have created on GitHub
>(https://github.com/silviapfeiffer/HTMLSourcingInbandTracks/pull/1) is
>the proposal of the HbbTV Association to also include DVB services. HbbTV
>does not have requirements to expose the full capabilities of the DVB
>broadcast system to HTML. As a result, the proposal does not cover all
>the functionality that your current document defines for the ATSC
>broadcast system. If you want to go further, you would have to contact
>DVB.
> 
>As you will see, I have restructured the section on MPEG-2 Transport
>Streams quite a bit to make room for DVB-specific stuff. I have retained
>your text in the ATSC parts. I have also added empty parts for the
>Japanese ISDB system. As I just saw on GitHub, user YosAwed has already
>picked that up and seems to be starting to fill in the ISDB stuff.
> 
>As well as the MPEG-2 transport stream section, the HbbTV proposal
>includes changes to the sections on MPEG-DASH and ISOBMFF. On MPEG-DASH,
>our proposal addresses alignment with the recently published DVB profile
>of MPEG DASH 
>(https://www.dvb.org/resources/public/standards/a168_dvb-dash.pdf) and
>support for the DASH event stream mechanism added by MPEG in the second
>edition of the DASH specification. In the section on ISOBMFF, our
>proposal adds support for the EBU-TT-D profile of TTML alongside the
>SMPTE profile of TTML.
> 
>We are thus proposing the updates conveyed in my pull request for your
>kind review.
> 
>As my last merge from your repository was as far back as July 8th, please
>don't hesitate to ask me for help with integrating our proposed updates.
>Also, should you have any other questions or comments, please don't
>hesitate to let me know.
> 
> 
>Thanks a lot in advance, and yours sincerely,
> 
>  --alexander adolf

Received on Tuesday, 9 September 2014 22:48:47 UTC