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Re: Aligning NPT syntax with RTSP

From: Silvia Pfeiffer <silviapfeiffer1@gmail.com>
Date: Thu, 28 Jan 2010 09:28:05 +1100
Message-ID: <2c0e02831001271428k443b4ef5k93ca50ce17b1aeee@mail.gmail.com>
To: Philip Jägenstedt <philipj@opera.com>
Cc: public-media-fragment@w3.org
On Wed, Jan 27, 2010 at 11:45 PM, Philip Jägenstedt <philipj@opera.com> wrote:
> On Wed, 27 Jan 2010 13:32:11 +0100, Silvia Pfeiffer
> <silviapfeiffer1@gmail.com> wrote:
>
>> On Wed, Jan 27, 2010 at 10:33 PM, Philip Jägenstedt <philipj@opera.com>
>> wrote:
>>>
>>> On Wed, 27 Jan 2010 12:23:25 +0100, Silvia Pfeiffer
>>> <silviapfeiffer1@gmail.com> wrote:
>>>
>>>> On Wed, Jan 27, 2010 at 10:09 PM, Philip Jägenstedt <philipj@opera.com>
>>>> wrote:
>>>>>
>>>>>
>>>>>
>>>>> http://www.w3.org/2008/WebVideo/Fragments/WD-media-fragments-spec/#npttime
>>>>>
>>>>> This is what I mentioned in the teleconf. As it is, '0.' would not be a
>>>>> valid production of npttime but it is a valid production of npt-sec
>>>>> from
>>>>> RTSP [1]. The same is true of '00:00:00.'. The difference is in digits
>>>>> after
>>>>> the decimal point.
>>>>
>>>> We currently have:
>>>>
>>>> npttime    ::=          ( 1*DIGIT [ "." 1*DIGIT ] [ timeunit ] ) |
>>>>                       ( 1*DIGIT ":" 2DIGIT ":" 2DIGIT [ "." 1*DIGIT] )
>>>>
>>>> which I think you are proposing to change to
>>>>
>>>> npttime    ::=          ( 1*DIGIT [ "." *DIGIT ] [ timeunit ] ) |
>>>>                       ( 1*DIGIT ":" 2DIGIT ":" 2DIGIT [ "." *DIGIT] )
>>>>
>>>> Correct?
>>>
>>> To be precise, I'm suggesting referring to the definition in RFC2326, noy
>>> copying it. The effect is the same of course.
>>
>> Could do ...  otoh if the RTP spec changes this, we are not
>> dependent... and it's really short.
>
> RFCs can never change, but I have no objections to copying as long as there
> is a (normative?) reference to RFC2326 for readers to follow.

Yeah, that's right. I guess the only reason then is not to have to go
and read another document.
I'm happy to add a normative reference to RFC2326 and still leaven the
two-liner in there.

Cheers,
Silvia.
Received on Wednesday, 27 January 2010 22:28:57 GMT

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