windows-nt/Source/XPSP1/NT/enduser/netmeeting/av/nac/msh26x.h

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2020-09-26 03:20:57 -05:00
typedef enum tagFrameSize
{
FORBIDDEN=0,
SQCIF=1,
QCIF=2,
CIF=3,
fCIF=4,
ssCIF=5
}FrameSize;
// MSH26X Configuration Information
typedef struct tagMSH26XCONF{
BOOL bInitialized; // Whether custom msgs can be rcv'd.
BOOL bCompressBegin; // Whether the CompressBegin msg was rcv'd.
BOOL bRTPHeader; // Whether to generate RTP header info
/* used if bRTPHeader */
UINT unPacketSize; // Maximum packet size
BOOL bEncoderResiliency; // Whether to use resiliency restrictions
/* used if bEncoderResiliency */
UINT unPacketLoss;
BOOL bBitRateState;
/* used if bBitRateState */
UINT unBytesPerSecond;
/* The following information is determined from the packet loss value. */
/* These values are calculated each time we receive a resiliency msg or */
/* the value is changed through the dialog box. They are not stored in */
/* the registry. Only the above elements are stored in the registry. */
BOOL bDisallowPosVerMVs; // if true, disallow positive vertical MVs
BOOL bDisallowAllVerMVs; // if true, disallow all vertical MVs
UINT unPercentForcedUpdate; // Percent Forced Update per Frame
UINT unDefaultIntraQuant; // Default Intra Quant
UINT unDefaultInterQuant; // Default Inter Quant
} MSH26XCONF;
// MSH26X Compressor Instance information
typedef struct tagMSH26XCOMPINSTINFO{
BOOL Initialized;
WORD xres, yres;
FrameSize FrameSz; // Which of the supported frame sizes.
float FrameRate;
DWORD DataRate; // Data rate in bytes per second.
HGLOBAL hEncoderInst; // Instance data private to encoder.
LPVOID EncoderInst;
WORD CompressedSize;
BOOL Is160x120;
BOOL Is240x180;
BOOL Is320x240;
MSH26XCONF Configuration;
#if !defined(_ALPHA_) && defined(USE_BILINEAR_MSH26X)
UINT InputCompression;
UINT InputBitWidth;
#endif
} MSH26XCOMPINSTINFO, *PMSH26XCOMPINSTINFO;
// MSH26X BitStream Info Trailer structure
typedef struct tagH26X_RTP_BSINFO_TRAILER {
DWORD dwVersion;
DWORD dwFlags;
DWORD dwUniqueCode;
DWORD dwCompressedSize;
DWORD dwNumOfPackets;
BYTE bySrc;
BYTE byTR;
BYTE byTRB;
BYTE byDBQ;
} H26X_RTP_BSINFO_TRAILER, *PH26X_RTP_BSINFO_TRAILER;
// MSH263 BitStream Info structure
typedef struct tagRTP_H263_BSINFO {
DWORD dwFlags;
DWORD dwBitOffset;
BYTE byMode;
BYTE byMBA;
BYTE byQuant;
BYTE byGOBN;
char cHMV1;
char cVMV1;
char cHMV2;
char cVMV2;
} RTP_H263_BSINFO, *PRTP_H263_BSINFO;
// MSH261 BitStream Info structure
typedef struct tagRTP_H261_BSINFO {
DWORD dwFlags;
DWORD dwBitOffset;
BYTE byMBA;
BYTE byQuant;
BYTE byGOBN;
char cHMV;
char cVMV;
BYTE byPadding0;
WORD wPadding1;
} RTP_H261_BSINFO, *PRTP_H261_BSINFO;
// Constants
#define H263_RTP_BS_START_CODE MakeFOURCC('H','2','6','3')
#define H261_RTP_BS_START_CODE MakeFOURCC('H','2','6','1')
#define RTP_H26X_INTRA_CODED 0x00000001
#define RTP_H263_PB 0x00000002
#define RTP_H263_AP 0x00000004
#define RTP_H263_SAC 0x00000008
#define RTP_H263_MODE_A 0x00
#define RTP_H263_MODE_B 0x01
#define RTP_H263_MODE_C 0x02
#define H26X_RTP_PAYLOAD_VERSION 0x00000000
#define RTP_H26X_PACKET_LOST 0x00000001