Re: please review: application/smil MIME type registration
Anders, I am picking this up again - sorry for the long delay. The optional parameter that you requested has been added to the latest draft - see http://www.ietf.org/internet-drafts/draft-hoschka-smil-media-type-09.txt -Philipp "Anders Nohlgren (EPL)" wrote:
Philipp, couldn't there be an optional parameter to the SMIL MIME type (indicating e.g. profile) that could be used for content-negotiation purposes? I fully understand your arguments that such a parameter is not absolutely necessary, but in some cases it would be a useful feature. If you want to deliver an optimised SMIL file to the client you should be able to indicate the supported profile. The last sentence of clause 14.4.4 in the SMIL 2.0 recommendation (http://www.w3.org/TR/smil20/smil-basic.html#smilBasicNS-GuidePlayer) talks about processing the test attributes already on the server side. When doing so it would help to know the SMIL profile that the client supports. Providing this with the MIME type would be efficient I think.
Best regards, Anders
-----Original Message----- From: Philipp Hoschka [mailto:ph@w3.org] Sent: 22 June 2001 19:45 To: Peter Stark (ECS) Cc: ietf-types@iana.org; www-smil@w3.org Subject: Re: please review: application/smil MIME type registration
Peter,
I presume your use case is that a client should be able to request a SMIL-basic document via content-negotiation ? This is not the way SMIL basic works.
All SMIL 2.0 documents are also SMIL basic documents http://www.w3.org/TR/smil20/smil-basic.html#BaseGuideNS-BasicDoc
However, SMIL basic user agents interpret only a well-defined subset of the markup that may occur in a SMIL 2.0 docucment (see clause 5. and 7. at http://www.w3.org/TR/smil20/smil-basic.html#BaseGuideNS-BasicUserAgent
To avoid an unsatisfactory user experience, an author can 1) only use markup defined for SMIL basic http://www.w3.org/TR/smil20/smil-basic.html#smilBasicNS-Basic 2) write a "scalable document" that adapts gracefully depending on whether it is played on a SMIL 2.0 or a SMIL basic user agent: http://www.w3.org/TR/smil20/smil-basic.html#smilBasicNS-GuideDoc
The same approach can be applied to any profile, not just SMIL basic, and there is thus no need to use the MIME type to distinguish between profiles.
-Philipp
"Peter Stark (ECS)" a écrit :
How does can it be used to distinguish between full SMIL
2.0 and a profile such as SMIL Basic?
PS
-----Original Message----- From: Philipp Hoschka [mailto:ph@w3.org] Sent: den 21 juni 2001 18:03 To: ietf-types@iana.org Cc: www-smil@w3.org Subject: please review: application/smil MIME type registration
We'd like to start the two-week review of
http://search.ietf.org/internet-drafts/draft-hoschka-smil-medi a-type-08.txt
describing the registration of the application/smil MIME type for SMIL 1.0 and SMIL 2.0.
-Philipp Hoschka, W3C
Hello Philipp, I had a very quick look at this. I have only one very small suggestion: In things like: 3. Registration Information To: ietf-types@iana.org Subject: Registration of MIME media type application/smil MIME media type name: application MIME subtype name: smil Required parameters: none Optional parameters: charset All of the considerations described in RFC3023 also apply to the SMIL media type. profile See Section 5 of this document. Encoding considerations: All of the considerations described in RFC3023 also apply to the SMIL media type.
I would prefer to change the formatting, so that the structure is clearer. E.g.: 3. Registration Information To: ietf-types@iana.org Subject: Registration of MIME media type application/smil MIME media type name: application MIME subtype name: smil Required parameters: none Optional parameters: charset All of the considerations described in RFC3023 also apply to the SMIL media type. profile See Section 5 of this document. Encoding considerations: All of the considerations described in RFC3023 also apply to the SMIL media type.
Regards, Martin. At 14:49 02/04/04 +0200, Philipp Hoschka wrote:
Anders,
I am picking this up again - sorry for the long delay.
The optional parameter that you requested has been added to the latest draft - see http://www.ietf.org/internet-drafts/draft-hoschka-smil-media-type-09.txt
-Philipp
"Anders Nohlgren (EPL)" wrote:
Philipp, couldn't there be an optional parameter to the SMIL MIME type
(indicating e.g. profile) that could be used for content-negotiation purposes? I fully understand your arguments that such a parameter is not absolutely necessary, but in some cases it would be a useful feature. If you want to deliver an optimised SMIL file to the client you should be able to indicate the supported profile. The last sentence of clause 14.4.4 in the SMIL 2.0 recommendation (http://www.w3.org/TR/smil20/smil-basic.html#smilBasicNS-GuidePlayer) talks about processing the test attributes already on the server side. When doing so it would help to know the SMIL profile that the client supports. Providing this with the MIME type would be efficient I think.
Best regards, Anders
-----Original Message----- From: Philipp Hoschka [mailto:ph@w3.org] Sent: 22 June 2001 19:45 To: Peter Stark (ECS) Cc: ietf-types@iana.org; www-smil@w3.org Subject: Re: please review: application/smil MIME type registration
Peter,
I presume your use case is that a client should be able to request a SMIL-basic document via content-negotiation ? This is not the way SMIL basic works.
All SMIL 2.0 documents are also SMIL basic documents http://www.w3.org/TR/smil20/smil-basic.html#BaseGuideNS-BasicDoc
However, SMIL basic user agents interpret only a well-defined subset of the markup that may occur in a SMIL 2.0 docucment (see clause 5. and 7. at http://www.w3.org/TR/smil20/smil-basic.html#BaseGuideNS-BasicUserAgent
To avoid an unsatisfactory user experience, an author can 1) only use markup defined for SMIL basic http://www.w3.org/TR/smil20/smil-basic.html#smilBasicNS-Basic 2) write a "scalable document" that adapts gracefully depending on whether it is played on a SMIL 2.0 or a SMIL basic user agent: http://www.w3.org/TR/smil20/smil-basic.html#smilBasicNS-GuideDoc
The same approach can be applied to any profile, not just SMIL basic, and there is thus no need to use the MIME type to distinguish between profiles.
-Philipp
"Peter Stark (ECS)" a 馗rit :
How does can it be used to distinguish between full SMIL
2.0 and a profile such as SMIL Basic?
PS
-----Original Message----- From: Philipp Hoschka [mailto:ph@w3.org] Sent: den 21 juni 2001 18:03 To: ietf-types@iana.org Cc: www-smil@w3.org Subject: please review: application/smil MIME type registration
We'd like to start the two-week review of
http://search.ietf.org/internet-drafts/draft-hoschka-smil-medi a-type-08.txt
describing the registration of the application/smil MIME type for SMIL 1.0 and SMIL 2.0.
-Philipp Hoschka, W3C
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participants (2)
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Martin Duerst -
Philipp Hoschka