include/dxsdk/mpegtype.h

   1
   2 #ifndef __MPEGTYPE__
   3 #define __MPEGTYPE__
   4
   5 #ifdef __cplusplus
   6 extern "C" {
   7 #endif
   8
   9
  10
  11 typedef struct tagAM_MPEGSTREAMTYPE
  12 {
  13   DWORD dwStreamId;
  14   DWORD dwReserved;
  15   AM_MEDIA_TYPE mt;
  16   BYTE bFormat[1];
  17 } AM_MPEGSTREAMTYPE;
  18
  19 typedef struct tagAM_MPEGSYSTEMTYPE
  20 {
  21   DWORD dwBitRate;
  22   DWORD cStreams;
  23   AM_MPEGSTREAMTYPE Streams[1];
  24 } AM_MPEGSYSTEMTYPE;
  25
  26 DECLARE_INTERFACE_(IMpegAudioDecoder, IUnknown)
  27 {
  28   STDMETHOD(get_FrequencyDivider) (THIS_ unsigned long *pDivider) PURE;
  29   STDMETHOD(put_FrequencyDivider) (THIS_ unsigned long Divider) PURE;
  30   STDMETHOD(get_DecoderAccuracy) (THIS_ unsigned long *pAccuracy) PURE;
  31   STDMETHOD(put_DecoderAccuracy) (THIS_ unsigned long Accuracy) PURE;
  32   STDMETHOD(get_Stereo) (THIS_ unsigned long *pStereo ) PURE;
  33   STDMETHOD(put_Stereo) (THIS_ unsigned long Stereo) PURE;
  34   STDMETHOD(get_DecoderWordSize) (THIS_ unsigned long *pWordSize) PURE;
  35   STDMETHOD(put_DecoderWordSize) (THIS_ unsigned long WordSize) PURE;
  36   STDMETHOD(get_IntegerDecode) (THIS_ unsigned long *pIntDecode) PURE;
  37   STDMETHOD(put_IntegerDecode) (THIS_ unsigned long IntDecode) PURE;
  38   STDMETHOD(get_DualMode) (THIS_ unsigned long *pIntDecode) PURE;
  39   STDMETHOD(put_DualMode) (THIS_ unsigned long IntDecode) PURE;
  40   STDMETHOD(get_AudioFormat) (THIS_ MPEG1WAVEFORMAT *lpFmt) PURE;
  41 };
  42
  43 #ifdef
  44 }
  45 #endif
  46 #endif
  47
  48 #define AM_MPEGSTREAMTYPE_ELEMENTLENGTH(pStreamType)  FIELD_OFFSET(AM_MPEGSTREAMTYPE, bFormat[(pStreamType)->mt.cbFormat])
  49 #define AM_MPEGSTREAMTYPE_NEXT(pStreamType)           ((AM_MPEGSTREAMTYPE *)((PBYTE)(pStreamType) + ((AM_MPEGSTREAMTYPE_ELEMENTLENGTH(pStreamType) + 7) & ~7)))
  50 #define AM_MPEG_AUDIO_DUAL_MERGE 0
  51 #define AM_MPEG_AUDIO_DUAL_LEFT  1
  52 #define AM_MPEG_AUDIO_DUAL_RIGHT 2
  53