Video Coding History questions

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Hello!

I am new to the Matroska user list, so maybe this question was already ask
once in the last years. As I could see a lot of work went into the MKV
project.
But that still has to ask if it was forgotten or if it was knowingly left
out. And I don't want to step on anyone's toes here ;).

I am coming from the long term archiving world (lossless codecs).
We are archiving PCM AUDIO 24bit in BWF Files and VIDEO files with FFV1/AVI=
.

As you know the EBU recommends to write a coding history into BWF files:
https://tech.ebu.ch/publications/r098
Direct File Link:
https://tech.ebu.ch/files/live/sites/tech/files/shared/r/r098.pdf

This recommendation was the basis of this very well made recommendation
from mediaarea.net. It specifies a coding history for AVI files using the
IMIT tag within the LIST-INFO chunk of an AVI file.
https://mediaarea.net/AVIMetaEdit/imit

So when I read the MKV specification I was expecting ...not the same coding
history list for AVI but something similar, because FFV1 MKV is and will be
THE long term archiving format.
So the only 2 tags I could use (or I found) were:

a.) DATE_DIGITIZED
The time that the item was transferred to a digital medium. This is akin to
the =E2=80=9CIDIT=E2=80=9D tag in [@?RIFF.tags].

b.) ORIGINAL_MEDIA_TYPE
Describes the original type of the media, such as, =E2=80=9CDVD=E2=80=9D, =
=E2=80=9CCD=E2=80=9D, =E2=80=9Ccomputer
image,=E2=80=9D =E2=80=9Cdrawing,=E2=80=9D =E2=80=9Clithograph,=E2=80=9D an=
d so forth. This is akin to the =E2=80=9CTMED=E2=80=9D
tag in [@!ID3v2].
Example value: VID/A/PAL/BETACAMSP
(see TMED at https://id3.org/id3v2.3.0)

So I can set the date of digitizing the analog/digital video tape and the
tape type. (VHS, Betacam, Umatic, IMX etc).

------------------

QUESTIONS:
1.) Is it somehow planned for the final MKV spec to add a coding history
for the Segment Information, so that within the MKV a tag is saved with a
video coding history with the "language" similar to the EBU and
mediaarea.net recommendation?:

Video "CODING_HISTORY" example from mediaarea.net:
R=3Dsource object,MD=3DS-VHS,T=3Dtape1234
R=3Dplayback,MN=3DSony,MD=3DSVO-5800,SN=3Dabc1324,ST=3Dinternal
TBC,SG=3Dcomponent,T=3DS-VHS deck
R=3DcaptureDevice,MN=3DBlackmagic-Design,MD=3DDecklink Studio
SDI,SN=3Dxyz6789,ST=3D7.5 IRE,VE=3D2.0.3
R=3DcaptureSoftware,MN=3DBlackmagic-Design,MD=3DMedia Express,VE=3D2.0.3
R=3DoperatingSystem,MN=3DCanonical,MD=3DUbuntu,VE=3D11.04

2.) Is maybe a EBU recommendation already planned for a video coding
history?
(Waiting for EBU acceptance of the Mediaarea rec. or waiting for the EBU
itself to release a new coding history rec.?)

3.) Are there somewhere else tags I can use for describing a coding history=
?

br Christoph

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<div dir=3D"ltr">Hello!<br><br>I am new to the Matroska user list, so maybe=
 this question was already ask once in the last years. As I could see a lot=
 of work went into the MKV project.<br>But that still has to ask if it was =
forgotten or if it was knowingly left out. And I don&#39;t want to step on =
anyone&#39;s toes here ;).<br><br>I am coming from the long term archiving =
world (lossless codecs).<br>We are archiving PCM AUDIO 24bit in BWF Files a=
nd VIDEO files with FFV1/AVI.<br><br>As you know the EBU recommends to writ=
e a coding history into BWF files:<br><a href=3D"https://tech.ebu.ch/public=
ations/r098">https://tech.ebu.ch/publications/r098</a><br>Direct File Link:=
 <a href=3D"https://tech.ebu.ch/files/live/sites/tech/files/shared/r/r098.p=
df">https://tech.ebu.ch/files/live/sites/tech/files/shared/r/r098.pdf</a><b=
r><br>This recommendation was the basis of this very well made recommendati=
on from <a href=3D"http://mediaarea.net">mediaarea.net</a>. It specifies a =
coding history for AVI files using the IMIT tag within the LIST-INFO chunk =
of an AVI file.<br><a href=3D"https://mediaarea.net/AVIMetaEdit/imit">https=
://mediaarea.net/AVIMetaEdit/imit</a><br><br>So when I read the MKV specifi=
cation I was expecting ...not the same coding history list for AVI but some=
thing similar, because FFV1 MKV is and will be THE long term archiving form=
at.<br>So the only 2 tags I could use (or I found) were:<br><br>a.) DATE_DI=
GITIZED <br>The time that the item was transferred to a digital medium. Thi=
s is akin to the =E2=80=9CIDIT=E2=80=9D tag in [@?RIFF.tags].<br><br>b.) OR=
IGINAL_MEDIA_TYPE<br>Describes the original type of the media, such as, =E2=
=80=9CDVD=E2=80=9D, =E2=80=9CCD=E2=80=9D, =E2=80=9Ccomputer image,=E2=80=9D=
 =E2=80=9Cdrawing,=E2=80=9D =E2=80=9Clithograph,=E2=80=9D and so forth. Thi=
s is akin to the =E2=80=9CTMED=E2=80=9D tag in [@!ID3v2].<br>Example value:=
 VID/A/PAL/BETACAMSP<br>(see TMED at <a href=3D"https://id3.org/id3v2.3.0">=
https://id3.org/id3v2.3.0</a>)<br><br>So I can set the date of digitizing t=
he analog/digital video tape and the tape type. (VHS, Betacam, Umatic, IMX =
etc).<br><br>------------------<br><br>QUESTIONS:<br>1.) Is it somehow plan=
ned for the final MKV spec to add a coding history for the Segment Informat=
ion, so that within the MKV a tag is saved with a video coding history with=
 the &quot;language&quot; similar to the EBU and <a href=3D"http://mediaare=
a.net">mediaarea.net</a> recommendation?:<br><br>Video &quot;CODING_HISTORY=
&quot; example from <a href=3D"http://mediaarea.net">mediaarea.net</a>:<br>=
R=3Dsource object,MD=3DS-VHS,T=3Dtape1234<br>R=3Dplayback,MN=3DSony,MD=3DSV=
O-5800,SN=3Dabc1324,ST=3Dinternal TBC,SG=3Dcomponent,T=3DS-VHS deck<br>R=3D=
captureDevice,MN=3DBlackmagic-Design,MD=3DDecklink Studio SDI,SN=3Dxyz6789,=
ST=3D7.5 IRE,VE=3D2.0.3<br>R=3DcaptureSoftware,MN=3DBlackmagic-Design,MD=3D=
Media Express,VE=3D2.0.3<br>R=3DoperatingSystem,MN=3DCanonical,MD=3DUbuntu,=
VE=3D11.04<br><br>2.) Is maybe a EBU recommendation already planned for a v=
ideo coding history? <br>(Waiting for EBU acceptance of the Mediaarea rec. =
or waiting for the EBU itself to release a new coding history rec.?)<br><br=
>3.) Are there somewhere else tags I can use for describing a coding histor=
y?<br><br>br Christoph</div>

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