Re: [rtcweb] Straw Poll on Video Codec Alternatives

["Mishra, Sanjay" <[e-mail]>]

Please see responses for video codec alternatives below.

Thanks
Sanjay


1.    All entities MUST support H.264

a.    Are you in favor of this option [Yes/No/Acceptable]: YES

b.    Do you have any objections to this option, if so please summarize them:



2.    All entities MUST support VP8

a.    Are you in favor of this option [Yes/No/Acceptable]: NO

b.    Do you have any objections to this option, if so please summarize them:

o   Prefer H.264 over VP8 as MTI



3.    All entities MUST support both H.264 and VP8

a.    Are you in favor of this option [Yes/No/Acceptable]: YES

b.    Do you have any objections to this option, if so please summarize them:



4.    Browsers MUST support both H.264 and VP8, other entities MUST support at least one of H.264 and VP8

a.    Are you in favor of this option [Yes/No/Acceptable]: YES

b.    Do you have any objections to this option, if so please summarize them:

o   No objection but a comment. Prefer that all entities support both H.264 and VP8



5.    All entities MUST support at least one of H.264 and VP8

a.    Are you in favor of this option [Yes/No/Acceptable]: NO

b.    Do you have any objections to this option, if so please summarize them:

o   Do not support VP8 over H.264 as MTI



6.    All entities MUST support H.261

a.    Are you in favor of this option [Yes/No/Acceptable]: NO

b.    Do you have any objections to this option, if so please summarize them:

o   Lower quality video and the choice regresses given the evolution to H.264 and its wider deployment already



7.    There is no MTI video codec

a.    Are you in favor of this option [Yes/No/Acceptable]: NO

b.    Do you have any objections to this option, if so please summarize them:

o   Risks interoperability



8.    All entities MUST support H.261 and all entities MUST support at least one of H.264 and VP8

a.    Are you in favor of this option [Yes/No/Acceptable]: NO

b.    Do you have any objections to this option, if so please summarize them:

o   Do not support possible outcome of VP8 and H.261 as MTI



9.    All entities MUST support Theora

a.    Are you in favor of this option [Yes/No/Acceptable]: NO

b.    Do you have any objections to this option, if so please summarize them:

o   Adds deployment and Operations care as this is not known to be a wider deployment



10.  All entities MUST implement at least two of {VP8, H.264, H.261}

a.    Are you in favor of this option [Yes/No/Acceptable]: NO

b.    Do you have any objections to this option, if so please summarize them:

o   Do not support possible outcome of VP8 and H.261 as MTI



11.  All entities MUST implement at least two of {VP8, H.264, H.263}

a.    Are you in favor of this option [Yes/No/Acceptable]: NO

b.    Do you have any objections to this option, if so please summarize them:

o   Do not support possible outcome of VP8 and H.263 as MTI



12.  All entities MUST support decoding using both H.264 and VP8, and MUST support encoding using at least one of H.264 or VP8

a.    Are you in favor of this option [Yes/No/Acceptable]: NO

b.    Do you have any objections to this option, if so please summarize them:

o   Not a clean option requiring one codec in one direction and another one in a different and may present interoperability challenges



13.  All entities MUST support H.263

a.    Are you in favor of this option [Yes/No/Acceptable]: NO

b.    Do you have any objections to this option, if so please summarize them:

o   Not a good choice for MTI given wider deployment of H.264



14.  All entities MUST implement at least two of {VP8, H.264, Theora}

a.    Are you in favor of this option [Yes/No/Acceptable]: NO

b.    Do you have any objections to this option, if so please summarize them:

o   Do not support possible outcome of VP8 and Theora as MTI



15.  All entities MUST support decoding using Theora.

a.    Are you in favor of this option [Yes/No/Acceptable]: NO

b.    Do you have any objections to this option, if so please summarize them:

o   Adds deployment and Operations care as this codec is not known to be a wider deployment



16.  All entities MUST support Motion JPEG

a.    Are you in favor of this option [Yes/No/Acceptable]: NO

b.    Do you have any objections to this option, if so please summarize them:

o   Low quality video


From: rtcweb [mailto:[e-mail]] On Behalf Of Ted Hardie
Sent: Monday, December 09, 2013 12:25 PM
To: [e-mail]<mailto:[e-mail]>; Gonzalo Camarillo; Richard Barnes; Magnus Westerlund; Cullen Jennings
Subject: [rtcweb] Straw Poll on Video Codec Alternatives


Dear WG,


This is the email announcing the straw poll across the video codec alternatives proposed to the WG. If you haven't read the "Next Steps in Video Codec Selection Process" (http://www.ietf.org/mail-archive/web/rtcweb/current/msg10448.html )then please do that before you continue to read.


The straw poll's purpose is to make it clear to the WG which of the alternatives that are favored or disfavored and what objections you have, if any, against a particular alternative. The WG chairs will use the information from this straw poll to identify an alternative to put as a single consensus question to the group. Thus, everyone that has an opinion on at least one alternative should answer this poll. Provide your poll input by replying to this email to the WG mailing list. The poll will run until the end of the 12th of January 2014.


As can be seen below, the poll lists the alternative that have proposed to the WG. For each alternative two questions are listed.


The first question is "Are you in favor of this option [Yes/No/Acceptable]:". These three levels allow you to indicate that you: Yes= I would be fine with the WG choosing this option. No = I really don't favor this, and it should not be picked. Acceptable = I can live with this option but I prefer something else to be picked.


The second question is "Do you have any objections to this option, if so please explain it:" If you have any objection at a minimum indicate it with a "Yes".   Please also add a short (1-sentence) summary of each of the objections you believe applies.  (If you wish to provide a longer explanation, please do so in a separate thread).  If you have no objection, leave that question blank.


Please provide input on as many of the alternatives as you like and feel comfortable to do. The more inputs, the more well informed decision the WG chairs can take when identifying the option to be brought forward for consensus. Any alternative that you chose to leave blank, will simply be considered as one without any input from you.


WG participants, please do not comment on anyone's input in this thread! If you want to comment, then create a separate thread and change the subject line to something else. Otherwise you are making life for the chairs very difficult to track the results of this straw poll.


If discussion causes you to update your position, please feel free to send an update via email on the straw poll thread prior to the closing date.


1.    All entities MUST support H.264

a.    Are you in favor of this option [Yes/No/Acceptable]:

b.    Do you have any objections to this option, if so please summarize them:

2.    All entities MUST support VP8

a.    Are you in favor of this option [Yes/No/Acceptable]:

b.    Do you have any objections to this option, if so please summarize them:

3.    All entities MUST support both H.264 and VP8

a.    Are you in favor of this option [Yes/No/Acceptable]:

b.    Do you have any objections to this option, if so please summarize them:

4.    Browsers MUST support both H.264 and VP8, other entities MUST support at least one of H.264 and VP8

a.    Are you in favor of this option [Yes/No/Acceptable]:

b.    Do you have any objections to this option, if so please summarize them:

5.    All entities MUST support at least one of H.264 and VP8

a.    Are you in favor of this option [Yes/No/Acceptable]:

b.    Do you have any objections to this option, if so please summarize them:

6.    All entities MUST support H.261

a.    Are you in favor of this option [Yes/No/Acceptable]:

b.    Do you have any objections to this option, if so please summarize them:

7.    There is no MTI video codec

a.    Are you in favor of this option [Yes/No/Acceptable]:

b.    Do you have any objections to this option, if so please summarize them:

8.    All entities MUST support H.261 and all entities MUST support at least one of H.264 and VP8

a.    Are you in favor of this option [Yes/No/Acceptable]:

b.    Do you have any objections to this option, if so please summarize them:

9.    All entities MUST support Theora

a.    Are you in favor of this option [Yes/No/Acceptable]:

b.    Do you have any objections to this option, if so please summarize them:

10.  All entities MUST implement at least two of {VP8, H.264, H.261}

a.    Are you in favor of this option [Yes/No/Acceptable]:

b.    Do you have any objections to this option, if so please summarize them:

11.  All entities MUST implement at least two of {VP8, H.264, H.263}

a.    Are you in favor of this option [Yes/No/Acceptable]:

b.    Do you have any objections to this option, if so please summarize them:

12.  All entities MUST support decoding using both H.264 and VP8, and MUST support encoding using at least one of H.264 or VP8

a.    Are you in favor of this option [Yes/No/Acceptable]:

b.    Do you have any objections to this option, if so please summarize them:

13.  All entities MUST support H.263

a.    Are you in favor of this option [Yes/No/Acceptable]:

b.    Do you have any objections to this option, if so please summarize them:

14.  All entities MUST implement at least two of {VP8, H.264, Theora}

a.    Are you in favor of this option [Yes/No/Acceptable]:

b.    Do you have any objections to this option, if so please summarize them:

15.  All entities MUST support decoding using Theora.

a.    Are you in favor of this option [Yes/No/Acceptable]:

b.    Do you have any objections to this option, if so please summarize them:

16.  All entities MUST support Motion JPEG

a.    Are you in favor of this option [Yes/No/Acceptable]:

b.    Do you have any objections to this option, if so please summarize them:


H.264 is a reference to the proposal in https://datatracker.ietf.org/doc/draft-burman-rtcweb-h264-proposal/<https://datatracker.ietf.org/doc/draft-burman-rtcweb-h264-proposal/>


VP8 is a reference to the proposal in https://datatracker.ietf.org/doc/draft-alvestrand-rtcweb-vp8/<https://datatracker.ietf.org/doc/draft-alvestrand-rtcweb-vp8/>


Theora is a reference to Xiph.org Theora Specification from March 16, 2011 (http://www.xiph.org/theora/doc/Theora_I_spec.pdf)


H.263 is a reference to profile 0 level 70 defined in annex X of ITU-T rec H.263 (http://www.itu.int/rec/T-REC-H.263/)


H.261 is a reference to http://tools.ietf.org/html/rfc4587


Motion JPEG is a reference to http://tools.ietf.org/html/rfc2435


Thanks,


The Chairs