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Downgrade two new requirements to recommendations #350

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@wantehchang wantehchang commented Apr 8, 2024

For backward compatibility, downgrade the following two new requirements
in commit 86fb0ac

OBUs that are not layer-specific must have the obu_extension_flag
set to 0.

..., it is a requirement of bitstream conformance that
obu_extension_flag is equal to 1 for all layer-specific OBUs in the
coded video sequence.

to recommendations

OBUs that are not layer-specific should have the obu_extension_flag
set to 0.

..., obu_extension_flag should be equal to 1 for all layer-specific
OBUs in the coded video sequence.

For backward compatibility, downgrade the following two new requirements
in commit 86fb0ac

  OBUs that are not layer-specific must have the obu_extension_flag
  set to 0.

  ..., it is a requirement of bitstream conformance that
  obu_extension_flag is equal to 1 for all layer-specific OBUs in the
  coded video sequence.

to recommendations

  OBUs that are not layer-specific should have the obu_extension_flag
  set to 0.

  ..., obu_extension_flag should be equal to 1 for all layer-specific
  OBUs in the coded video sequence.
@wantehchang wantehchang force-pushed the layer-specific-OBU-recommendations branch from e9495d1 to b654794 Compare April 10, 2024 23:21
@wantehchang wantehchang changed the title Change non-layer-specific OBUs "must" to "should" Downgrade two new requirements to recommendations Apr 10, 2024
@mhoro
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mhoro commented May 10, 2024

Hi Wan-Teh, I'll leave it to those concerned with the original text to comment whether or not the changes address their concerns; however, I will say that your proposed changes look good to me.

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