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The H261_B restricted profile contains the set of features required for support of ITU-T Rec. H.261 without acceleration support for H.261 Annex D graphics, but with deblocking filter postprocessing support. Support of this profile is currently encouraged, but not required.
This set of features is defined by the restrictions for the H261_A restricted profile, with the following exceptions.
Restrictions on DXVA_ConnectMode
The following restriction on the DXVA_ConnectMode structure applies when the bDXVA_Func variable defined by the dwFunction member of the DXVA_ConfigPictureDecode structure is equal to 1 (picture decoding).
| Structure Member | Value |
|---|---|
wRestrictedMode |
DXVA_RESTRICTED_MODE_H261_B |
Restrictions on DXVA_PictureParameters
The following restrictions on the DXVA_PictureParameters structure apply when the bDXVA_Func variable defined by the dwFunction member of DXVA_ConfigPictureDecode is equal to 1.
| Structure Member | Value |
|---|---|
bPicDeblocked |
Zero or 1 |
wDeblockedPictureIndex |
Must not be equal to the wDecodedPictureIndex member of DXVA_PictureParameters when the bPicDeblocked member is 1. |