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Installable Codec Constants

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The Installable Codec API includes the following constants.

//
// For use as dimension for variable size arrays
//
#define VARIABLE_DIM 1
//
// CPU utilization numbers for Windows NetMeeting-provided codecs
//
#define LNH_48_CPU 97
#define LNH_8_CPU  47
#define LNH_12_CPU 48
#define LNH_16_CPU 49
#define MS_G723_CPU 70
#define CCITT_A_CPU 24
#define    CCITT_U_CPU 25typedef DWORD AUDIO_FORMAT_ID;
#define INVALID_AUDIO_FORMAT 0xffffffff

typedef DWORD VIDEO_FORMAT_ID;
#define INVALID_VIDEO_FORMAT 0xffffffff

Elements

  • AUDIO_FORMAT_ID
    An index into an array of AUDCAP_INFO structures.
  • INVALID_AUDIO_FORMAT
    Flag for non-valid AUDCAP_INFO structure.
  • VIDEO_FORMAT_ID
    An index into an array of VIDCAP_INFO structures.
  • INVALID_VIDEO_FORMAT
    Flag for non-valid VIDCAP_INFO structure.