No subject


Wed Jul 30 14:06:33 EDT 2003 

StillTextureObject()
{
  -----
  -----
  texture_error_resilience_disable 1 bslbf
  -----
  -----
}
texture_error_resilience_disable: This is a one-bit flag which when set =
to '0' indicates that the Still Texture Object is operating in error =
resilience mode.
Possibility-2:
------------------
7 The visual decoding process
7.5 Shape decoding
7.5.4 Spatial scalable binary shape decoding
7.5.4.14 Contexts for intra-mode CAE for enhancement layer
When building contexts and error_resilient_disable=3D=3D0, any pixels =
outside the space of the current video packet to the left and above are =
assumed to be zero (transparent).
But there is *no explanation* in the standard for =
"error_resilient_disable" in this case!
Should we assume it is a derived-flag refering to =
video-packet/data-partition/rvlc combinations???
Possibility-3:
------------------
Some (many) source-code uses an implementation variable with the name =
"error_resilient_disable" just for refering to =
video-packet/data-partition/rvlc combinations.
Any other possibility, I would like to know!
Regards,
Chandra
  ----- Original Message -----=20
  From: Gaurav Aggarwal=20
  To: technotes   lists.m4if.org=20
  Sent: Tuesday, February 25, 2024 6:38 PM
  Subject: RE: [M4IF Technotes] Question ablout Error_Resilient_Disable
  Where did you get to know that such a flag exists? If there is no such =
flag in
  the syntax document, then it doesn't exists.
  I see that various error resilience tools use their independent enable =
flags
  like: data_partitioned, reversible_vlc, header_extension_code etc.
  Right? Or am I missing something?
  Gaurav
    -----Original Message-----
    From: technotes-admin   lists.m4if.org =
[mailto:technotes-admin   lists.m4if.org]On Behalf Of ssurui
    Sent: Friday, February 21, 2024 12:09 PM
    To: technotes   lists.m4if.org
    Subject: [M4IF Technotes] Question ablout Error_Resilient_Disable
    Hi all:
    I have a quest ablout Error_Resilient_Disable flags.
    I can't find this flags in MPEG-4 syntaxs and can't find its meaning =
in Semantics.
    But I think this flag is useful.
    please tell me why?
    Thanks a lot
    ssurui
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<DIV><FONT face=3DArial size=3D2>Hi,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>There are three possibilities (I know) =
for=20
this:</FONT></DIV>
<DIV><FONT face=3DArial =
size=3D2><BR>Possibility-1:<BR>------------------<BR>From=20
the standard,<BR>StillTextureObject()<BR>{<BR>  -----<BR> =20
-----<BR>  texture_error_resilience_disable 1 bslbf<BR> =20
-----<BR>  -----<BR>}</DIV>
<DIV> </DIV>
<DIV>texture_error_resilience_disable: This is a one-bit flag which when =
set to=20
=910=91 indicates that the Still Texture Object is operating in error =
resilience=20
mode.</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Possibility-2:<BR>------------------<BR>7 The visual decoding =
process</DIV>
<DIV>7.5 Shape decoding<BR>7.5.4 Spatial scalable binary shape=20
decoding<BR>7.5.4.14 Contexts for intra-mode CAE for enhancement =
layer</DIV>
<DIV>When building contexts and error_resilient_disable=3D=3D0, any =
pixels outside=20
the space of the current video packet to the left and above are assumed =
to be=20
zero (transparent).</DIV>
<DIV><BR>But there is *no explanation* in the standard for=20
"error_resilient_disable" in this case!<BR>Should we assume it is a =
derived-flag=20
refering to video-packet/data-partition/rvlc combinations???<BR></DIV>
<DIV> </DIV>
<DIV>Possibility-3:<BR>------------------<BR>Some (many) source-code =
uses an=20
implementation variable with the name "error_resilient_disable" just for =
refering to video-packet/data-partition/rvlc combinations.</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Any other possibility, I would like to know!<BR></DIV>
<DIV>Regards,</DIV>
<DIV>Chandra</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A title=3Dguraaf   yahoo.co.in =
href=3D"mailto:guraaf   yahoo.co.in">Gaurav=20
  Aggarwal</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Dtechnotes   lists.m4if.org=20
  href=3D"mailto:technotes   lists.m4if.org">technotes   lists.m4if.org</A> =
</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Tuesday, February 25, =
2003 6:38=20
  PM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> RE: [M4IF Technotes] =
Question=20
  ablout Error_Resilient_Disable</DIV>
  <DIV><FONT face=3DArial size=3D2></FONT><FONT face=3DArial =
size=3D2></FONT><FONT=20
  face=3DArial size=3D2></FONT><FONT face=3DArial size=3D2></FONT><FONT =
face=3DArial=20
  size=3D2></FONT><FONT face=3DArial size=3D2></FONT><BR></DIV>
  <DIV><SPAN class=3D873575812-25022003><FONT face=3DArial =
size=3D2>Where did you get=20
  to know that such a flag exists? If there is no such flag=20
  in</FONT></SPAN></DIV>
  <DIV><SPAN class=3D873575812-25022003><FONT face=3DArial size=3D2>the =
syntax=20
  document, then it doesn't exists.</FONT></SPAN></DIV>
  <DIV><SPAN class=3D873575812-25022003><FONT face=3DArial=20
  size=3D2></FONT></SPAN> </DIV>
  <DIV><SPAN class=3D873575812-25022003><FONT face=3DArial size=3D2>I =
see that various=20
  error resilience tools use their independent enable =
flags</FONT></SPAN></DIV>
  <DIV><SPAN class=3D873575812-25022003><FONT face=3DArial =
size=3D2>like:=20
  data_partitioned, reversible_vlc, header_extension_code=20
  etc.</FONT></SPAN></DIV>
  <DIV><SPAN class=3D873575812-25022003><FONT face=3DArial=20
  size=3D2></FONT></SPAN> </DIV>
  <DIV><SPAN class=3D873575812-25022003><FONT face=3DArial =
size=3D2>Right? Or am I=20
  missing something?</FONT></SPAN></DIV>
  <DIV><SPAN class=3D873575812-25022003><FONT face=3DArial=20
  size=3D2>Gaurav</FONT></SPAN></DIV>
  <DIV><FONT face=3DArial size=3D2></FONT> </DIV>
  <BLOCKQUOTE dir=3Dltr=20
  style=3D"PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px =
solid; MARGIN-RIGHT: 0px">
    <DIV class=3DOutlookMessageHeader><FONT face=3D"Times New Roman"=20
    size=3D2>-----Original Message-----<BR><B>From:</B>=20
    technotes-admin   lists.m4if.org =
[mailto:technotes-admin   lists.m4if.org]<B>On=20
    Behalf Of</B> ssurui<BR><B>Sent:</B> Friday, February 21, 2024 12:09 =
    PM<BR><B>To:</B> technotes   lists.m4if.org<BR><B>Subject:</B> [M4IF=20
    Technotes] Question ablout =
Error_Resilient_Disable<BR><BR></FONT></DIV>
    <DIV><FONT size=3D2>Hi all:</FONT></DIV>
    <DIV> </DIV>
    <DIV><FONT face=3D"Times New Roman" size=3D2>I have a quest ablout =
<SPAN=20
    lang=3DEN-AU=20
    style=3D"FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; =
mso-fareast-font-family: =CB=CE=CC=E5; mso-ansi-language: EN-AU; =
mso-fareast-language: EN-US; mso-bidi-language: =
AR-SA">Error_Resilient_Disable=20
    flags.</SPAN></FONT></DIV>
    <DIV><FONT face=3D"Times New Roman" size=3D2><SPAN lang=3DEN-AU=20
    style=3D"FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; =
mso-fareast-font-family: =CB=CE=CC=E5; mso-ansi-language: EN-AU; =
mso-fareast-language: EN-US; mso-bidi-language: AR-SA">I=20
    can't find this flags in MPEG-4 syntaxs and can't find its meaning =
in=20
    Semantics.</SPAN></FONT></DIV>
    <DIV><FONT face=3D"Times New Roman" size=3D2><SPAN lang=3DEN-AU=20
    style=3D"FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; =
mso-fareast-font-family: =CB=CE=CC=E5; mso-ansi-language: EN-AU; =
mso-fareast-language: EN-US; mso-bidi-language: AR-SA">But=20
    I think this flag is useful.</SPAN></FONT></DIV>
    <DIV><FONT face=3D=CB=CE=CC=E5 size=3D2><SPAN lang=3DEN-AU=20
    style=3D"FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; =
mso-fareast-font-family: =CB=CE=CC=E5; mso-ansi-language: EN-AU; =
mso-fareast-language: EN-US; mso-bidi-language: AR-SA">please=20
    tell me why?</SPAN></FONT></DIV>
    <DIV><FONT face=3D=CB=CE=CC=E5 size=3D2><SPAN lang=3DEN-AU=20
    style=3D"FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'; =
mso-fareast-font-family: =CB=CE=CC=E5; mso-ansi-language: EN-AU; =
mso-fareast-language: EN-US; mso-bidi-language: =
AR-SA"></SPAN></FONT> </DIV>
    <DIV><FONT face=3D"Times New Roman" size=3D2>Thanks a =
lot</FONT></DIV>
    <DIV><FONT face=3D"Times New Roman"=20
size=3D2>ssurui</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>
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