[Matroska-devel] questions about SimpleBlock element

Steve Lhomme slhomme at matroska.org
Mon May 10 21:55:13 CEST 2010


Mh, it appears I was just talking BS. SimpleBlock is in v2 *only*.

And it's now listed correctly as such in the specs:
http://www.matroska.org/technical/specs/index.html

On Tue, Mar 9, 2010 at 6:36 PM, Steve Lhomme <slhomme at matroska.org> wrote:

> Yes 1 is fine for SimpleBlock. There is no Matroska v2 yet.
> If Alexnoe was correct anyway, that means only the "Invisible" flag is not
> usable with v1. Which you don't need and is likely not to be used anywhere
> for now.
>
> On Tue, Mar 9, 2010 at 5:31 PM, Matthew Heaney <matthewjheaney at hotmail.com
> > wrote:
>
>>
>>
>>
>>
>> *From:* matroska-devel-bounces at lists.matroska.org [mailto:
>> matroska-devel-bounces at lists.matroska.org] *On Behalf Of *Steve Lhomme
>> *Sent:* Tuesday, 09 March, 2010 11:11
>> *To:* Discussion about the current and future development of Matroska
>> *Subject:* Re: [Matroska-devel] questions about SimpleBlock element
>>
>>
>>
>>
>>
>> What values in the EBML Header element change to allow a SimpleBlock
>> element
>> to be used?  Candidates are:
>>
>> EBML Version [42][86]
>> EBML Read Version [42][F7]
>> Doc Type Version [42][87]
>> Doc Type Read Version [42][85]
>>
>> Right now my muxer is using 1 for all of these values.  What value should
>> I
>> use to enable the use of the SimpleBlock element?
>>
>>
>>
>> 1 is correct.
>>
>>
>>
>> The Matroska File Format by Alexander Noe says (on p. 40) that:
>>
>>
>>
>> “The following flags are only defined for Matroska v2 and can thus only be
>> used in a SimpleBlock: keyframe, invisible, discardable.”
>>
>>
>>
>> What does he mean by “Matroska v2”?  Are you sure the value 1 is
>> appropriate for all values in the EBML Header, if SimpleBlock elements are
>> being used?
>>
>>
>>
>> Thanks,
>>
>> Matt
>>
>>
>>
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>>
>
>
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