AM_DVDCOPY_CHLGKEY structure (dvdmedia.h)

  • Articolo

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

Identifies the DVD challenge key.

Syntax

typedef struct _AM_DVDCOPY_CHLGKEY {
  BYTE ChlgKey[10];
  BYTE Reserved[2];
} AM_DVDCOPY_CHLGKEY, *PAM_DVDCOPY_CHLGKEY;

Members

ChlgKey[10]

Challenge key.

Reserved[2]

Reserved.

Remarks

The AM_PROPERTY_DVDCOPY_CHLG_KEY property uses this structure.

A challenge key is used for the DVD CSS key exchange for decryption. Implementors should get a CSS license and further instructions from CSS.

Requirements

Requirement Value
Header dvdmedia.h

See also

DVD Copy Protection Property Set