[Matroska-devel] Proposal for a better definition for the 'keyframe' flag

Steve Lhomme slhomme at matroska.org
Sat Jun 15 18:00:41 CEST 2013

That's it

On Sat, Jun 15, 2013 at 5:58 PM, Jan Ekstrom <jeebjp at gmail.com> wrote:

> On Sat, Jun 15, 2013 at 6:49 PM, Steve Lhomme <slhomme at matroska.org>
> wrote:
> > A lot of rewording in the specs is needed like "timecode" to "timestamp".
> >
> > In this particular matter, lace has more meaning and is clearer in the
> > context of a SimpleBlock
> I am fine with both words, which would make the current version of the
> text something like this? I'm going to poke some other people to see
> if this doesn't look too bad in any way I haven't noticed myself yet.
> Keyframe:
> This SimpleBlock consists of laces that form a random access point.
> When decoding starts from a random access point, it can be correctly
> decoded, as well as all the following multiplexed data in presentation
> order, without having access to previous multiplexed data in coding
> order.
> If a decoder needs additional data to properly initialize (such as the
> parameter sets in AVC or HEVC), that data must be provided as defined
> in the applicable format's mapping specification. If that additional
> data is not available, this flag shall not be enabled.
> Jan Ekström
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Steve Lhomme
Matroska association Chairman
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