AMCOPPCommand structure (strmif.h)

[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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.]

The AMCOPPCommand structure contains a Certified Output Protection Protocol (COPP) command.

Syntax

typedef struct _AMCOPPCommand {
  GUID  macKDI;
  GUID  guidCommandID;
  DWORD dwSequence;
  DWORD cbSizeData;
  BYTE  CommandData[4056];
} AMCOPPCommand, *LPAMCOPPCommand;

Members

macKDI

Message Authentication Code (MAC) of the command data. Use AES-based one-key CBC MAC (OMAC) to calculate this value.

guidCommandID

GUID that specifies the command.

dwSequence

Sequence number. The application must keep a running count of the COPP commands issued. For each command, increment the sequence number by one.

cbSizeData

Number of bytes of valid data in the CommandData member.

CommandData[4056]

Data for the command. The meaning of the data depends on the command.

Remarks

The following COPP commands are defined.

For more information, see the Windows DDK documentation.

Requirements

See also

DirectShow Structures

Using Certified Output Protection Protocol (COPP)