7.4. Data Types

Relevant data types and data structures are defined as follows:

• VENC_MAX_CHN_NUM: Define the maximum number of channels.

• VENC_CHN_PARAM_S: Define the Venc channel parameter structure.

• VENC_PACK_S: Define frame stream packet structure .

• VENC_STREAM_S: Define the frame stream type structure.

• VENC_ATTR_S: Define the encoder attribute structure.

• VENC_GOP_ATTR_S: Define the structure of GOP mode type.

• VENC_GOP_NORMALP_S: Define the normalP structure

• VENC_GOP_SMARTP_S: Define the SmartP structure

• VENC_CHN_ATTR_S: Define the encoding channel attribute structure.

• VENC_RECV_PIC_PARAM_S: Define the frame number structure that the coding channel continuously receives and encodes.

• VENC_CHN_STATUS_S: Define the state structure of the encoding channel.

• VENC_JPEG_PARAM_S: Define a set of JPEG encoding parameters.

• VENC_RC_ATTR_S: Define the rate controller attribute of the coding channel.

• VENC_H264_CBR_S: Define the CBR attribute structure of H.264 coding channel.

• VENC_H264_VBR_S: Define the VBR attribute structure of H.264 coding channel.

• VENC_H264_QVBR_S: Define the QVBR attribute structure of H.264 coding channel.

• VENC_H264_FIXQP_S: Define the Fixqp attribute structure of H.264 coding channel.

• VENC_H264_QPMAP_S: Define the QPMAP attribute structure of H.264 coding channel.

• VENC_MJPEG_FIXQP_S: Define the Fixqp attribute structure of MJPEG encoding channel.

• VENC_MJPEG_CBR_S: Define the CBR attribute structure of MJPEG encoding channel.

• VENC_MJPEG_VBR_S: Define the VBR attribute structure of MJPEG encoding channel.

• VENC_H265_CBR_S: Define the CBR attribute structure of H.265 coding channel.

• VENC_H265_VBR_S: Define the VBR attribute structure of H.265 coding channel.

• VENC_H265_AVBR_S: Define the AVBR attribute structure of H.265 coding channel.

• VENC_H265_QVBR_S: Define the QVBR attribute structure of H.265 coding channel.

• VENC_H265_FIXQP_S: Define the Fixqp attribute structure of H.265 coding channel.

• VENC_H265_QPMAP_S: Define the QPMAP attribute structure of H.265 coding channel.

• VENC_RC_PARAM_S: Define the advanced rate control parameters of the coding channel.

• VENC_CHN_POOL_S: Define the VB pool structure which is bound by encoding channel

• VENC_H264_ENTROPY_S: Define H.264 entropy coding information structure

• VENC_CU_PREDICTION_S: Define CU prediction information structure

7.4.1. VENC_MAX_CHN_NUM

【Description】

Define the maximum number of channels for encoding

【Syntax】

#define VENC_MAX_CHN_NUM             16

【Member】

【Note】

Because the maximum number of channels is related to memory allocation, it is not open for expansion at present.

【Related Data Type and Interface】

None.

7.4.2. VENC_CHN_PARAM_S

【Description】

Define the Venc channel parameter structure.

【Syntax】

 typedef struct _VENC_CHN_PARAM_S {
  CVI_BOOL bColor2Grey;
  CVI_U32 u32Priority
  CVI_U32 u32MaxStrmCnt;
  CVI_U32 u32PollWakeUpFrmCnt;
  VENC_CROP_INFO_S stCropCfg;
  VENC_FRAME_RATE_S stFrameRate;
} VENC_CHN_PARAM_S;

【Member】

Member	Description
bColor2Grey	Reserved, not used yet
u32Priority	Reserved, not used yet
u32MaxStrmCnt	Reserved, not used yet
u32PollWakeUpFrmCnt	Reserved, not used yet
stCropCfg	Channel intercept (Crop) parameter
stFrameRate	Channel frame rate control parameters

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_SetChnParam

7.4.3. VENC_PACK_S

【Description】

Define the frame stream packet structure.

【Syntax】

 typedef struct _VENC_PACK_S {
  CVI_U64 u64PhyAddr;
  CVI_U8 ATTRIBUTE *pu8Addr;
  CVI_U32 ATTRIBUTE u32Len;
  CVI_U64 u64PTS;
  CVI_BOOL bFrameEnd;
  VENC_DATA_TYPE_U DataType;
  CVI_U32 u32Offset;
  CVI_U32 u32DataNum;
  VENC_PACK_INFO_S stPackInfo[8];
} VENC_PACK_S;

【Member】

Member	Description
u64PhyAddr	The first physical address of the bitstream.
pu8Addr	The first virtual address of the bitstream.
u32Len	The length of the stream packet.
DataType	Stream type, support H.264/JPEG/H.265 protocol type packet.
bFrameEnd	End of frame identifier. CVI_TRUE: the stream packet is the last packet of the frame. CVI_FALSE: the stream packet is not the last packet of the frame.
u32Offset	The offset between the valid data in the stream packet and the first address pu8Addr of the stream packet.
u64PTS	Time stamp. Unit: us.
u32DataNum	The number of other types of code stream packets in the current code stream packet (the type of current packet is specified by DataType).
stPackInfo[8]	The current stream packet contains other types of stream packet information.

【Note】

None.

【Related Data Type and Interface】

• VENC_STREAM_S

7.4.4. VENC_STREAM_S

【Description】

Define the frame stream type structure.

【Syntax】

 typedef struct _VENC_STREAM_S {
  VENC_PACK_S ATTRIBUTE *pstPack;
  CVI_U32 ATTRIBUTE u32PackCount;
  CVI_U32 u32Seq;

  union {
  VENC_STREAM_INFO_H264_S stH264Info;
  VENC_STREAM_INFO_JPEG_S stJpegInfo;
  VENC_STREAM_INFO_H265_S stH265Info;
  VENC_STREAM_INFO_PRORES_S stProresInfo;
  };

  union {
  VENC_STREAM_ADVANCE_INFO_H264_S stAdvanceH264Info;
  VENC_STREAM_ADVANCE_INFO_JPEG_S stAdvanceJpegInfo;
  VENC_STREAM_ADVANCE_INFO_H265_S stAdvanceH265Info;
  VENC_STREAM_ADVANCE_INFO_PRORES_S stAdvanceProresInfo;
  };
} VENC_STREAM_S;

【Member】

Member	Description
pstPack	Frame stream packet structure.
u32PackCount	The number of all packets in a frame stream.
u32Seq	Code stream sequence number.
stH264Info/stJpegInfo/stH265Info/stProresInfo	Stream information.
stAdvanceH264Info/stAdvanceJpegInfo/stAdvanceH265Info/stAdvanceProresInfo	Bit stream advanced information.

【Note】

None.

【Related Data Type and Interface】

• VENC_PACK_S

7.4.5. VENC_GOP_ATTR_S

【Description】

Define the encoder GOP attribute structure.

【Syntax】

 typedef struct _VENC_GOP_ATTR_S {
  VENC_GOP_MODE_E enGopMode;
  union {
  VENC_GOP_NORMALP_S stNormalP;
  VENC_GOP_DUALP_S stDualP;
  VENC_GOP_SMARTP_S stSmartP;
  VENC_GOP_ADVSMARTP_S stAdvSmartP;
  VENC_GOP_BIPREDB_S stBipredB;
  };

} VENC_GOP_ATTR_S;

【Member】

Member	Description
enGopMode	Encoding GOP type.
stNormalP	Encoding single reference frame P frame GOP attribute structure.
stDualP	Reserved, not used yet
stSmartP	Encoding intelligent P-frame GOP attribute structure
stAdvSmartP	Reserved, not used yet
stBipredB	Reserved, not used yet

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_CreateChn

• VENC_STREAM_S

7.4.6. VENC_GOP_NORMALP_S

【Description】

Define the encoder NormalP GOP attribute structure

【Syntax】

 typedef struct _VENC_GOP_NORMALP_S {
  CVI_S32 s32IPQpDelta;
} VENC_GOP_NORMALP_S;

【Member】

Member	Description
s32IPQpDelta	QP difference between I frame and P frame

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_CreateChn

7.4.7. VENC_GOP_SMARTP_S

【Description】

Define the encoder SmartP GOP attribute structure

【Syntax】

 typedef struct _VENC_GOP_SMARTP_S {
  CVI_U32 u32BgInterval;
  CVI_S32 s32BgQpDelta;
  CVI_S32 s32ViQpDelta;
} VENC_GOP_SMARTP_S;

【Member】

Member	Description
u32BgInterval	IDR frame interval
s32BgQpDelta	QP difference between IDR frame and P frame
s32ViQpDelta	QP difference between Vi frame and P frame

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_CreateChn

7.4.8. VENC_RECV_PIC_PARAM_S

【Description】

Defines the frame number structure that the coding channel continuously receives and encodes.

【Syntax】

 typedef struct _VENC_RECV_PIC_PARAM_S {
  CVI_S32 s32RecvPicNum;
} VENC_RECV_PIC_PARAM_S;

【Member】

Member	Description
s32RecvPicNum	The number of frames continuously received and encoded by the encoding channel. Range: [- 1,0) ∪ (0 ∞]

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_StartRecvFrame

7.4.9. VENC_CHN_ATTR_S

【Description】

Define VENC_CHN_ATTR_S attribute.

【Syntax】

 typedef struct _VENC_CHN_ATTR_S {
  VENC_ATTR_S stVencAttr;
  VENC_RC_ATTR_S stRcAttr;
  VENC_GOP_ATTR_S stGopAttr;
} VENC_CHN_ATTR_S;

【Member】

Member	Description
stVencAttr	Venc attribute
stRcAtt	Rate controller properties.
stGopAttr	GOP Mode type structure. Please refer to the above typedef struct _VENC_GOP_ATTR_S

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_CreateChn

7.4.10. VENC_ATTR_S

【Description】

Define VENC_ATTR_S attribute.

【Syntax】

 typedef struct _VENC_ATTR_S {
  PAYLOAD_TYPE_E enType;
  CVI_U32 u32MaxPicWidth;
  CVI_U32 u32MaxPicHeight;
  CVI_U32 u32BufSize;
  CVI_U32 u32Profile;
  CVI_BOOL bByFrame;
  CVI_U32 u32PicWidth;
  CVI_U32 u32PicHeight;
  CVI_BOOL bSingleCore;
  CVI_BOOL bEsBufQueueEn;
  CVI_BOOL bIsoSendFrmEn;
  union {
  VENC_ATTR_H264_S stAttrH264e;
  VENC_ATTR_H265_S stAttrH265e;
  VENC_ATTR_JPEG_S stAttrJpege;
  VENC_ATTR_PRORES_S stAttrProres;
  };
} VENC_ATTR_S;

【Member】

Member	Description
enType	payload type.
u32MaxPicWidth	Maximum encoded image width
u32MaxPicHeight	Maximum encoded image height
u32BufSize	Encoded bitstream buffer size
u32Profile	Coding level
bByFrame	Encoded bitstream collection method CVI_TRUE: mainly in frame CVI_FALSE: Mainly in packets
u32PicWidth	Encoded image width
u32PicHeight	Encoded image height
bSingleCore	Only H264 or H265 is used
bEsBufQueueEn	Use an es buffer queue
bIsoSendFrmEn	Removes the restriction that SendFrame/GetStream must be paired
stAttrH264e / stAttrH265e /stAttrJpege / stAttrProres	Encoder attribute

【Note】

Open bIsoSendFrmEn at the same time as bEsBufQueueEn, otherwise there will be a burst screen

The bIsoSendFrmEn function must be disabled in dual-system, the dual-system removes the restriction that SendFrame/GetStream must be paired by default

【Related Data Type and Interface】

7.4.11. VENC_ATTR_H264_S

【Description】

Define H264 encoding attribute.

【Syntax】

 typedef struct _VENC_ATTR_H264_S {
  CVI_BOOL bRcnRefShareBuf;
  CVI_BOOL bSingleLumaBuf;
} VENC_ATTR_H264_S;

【Member】

Member	Description
bRcnRefShareBuf	Reserved
bSingleLumaBuf	The FrameBuffer of an encoding channel uses a Luma Buffer

【Note】

None.

【Related Data Type and Interface】

7.4.12. VENC_ATTR_H265_S

【Description】

Define H265 encoding attribute.

【Syntax】

 typedef struct _VENC_ATTR_H265_S {
  CVI_BOOL bRcnRefShareBuf;
} VENC_ATTR_H265_S;

【Member】

Member	Description
bRcnRefShareBuf	Reserved

【Note】

None.

【Related Data Type and Interface】

7.4.13. VENC_STREAM_INFO_S

【Description】

Define VENC_STREAM_INFO_S attribute.

【Syntax】

 typedef struct _ VENC_STREAM_INFO_S {
  H265E_REF_TYPE_E enRefType;

  CVI_U32 u32PicBytesNum;
  CVI_U32 u32PicCnt;
  CVI_U32 u32StartQp;
  CVI_U32 u32MeanQp;
  CVI_BOOL bPSkip;

  CVI_U32 u32ResidualBitNum;
  CVI_U32 u32HeadBitNum;
  CVI_U32 u32MadiVal;
  CVI_U32 u32MadpVal;
  CVI_U32 u32MseSum;
  CVI_U32 u32MseLcuCnt;
  double dPSNRVal;
} VENC_STREAM_INFO_S;

【Member】

Member	Description
u32MeanQp	The average QP of the current Frame

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_QueryStatus

7.4.14. VENC_CHN_STATUS_S

【Description】

Define VENC_CHN_STATUS_S attribute.

【Syntax】

typedef struct _VENC_CHN_STATUS_S {
  CVI_U32 u32LeftPics;
  CVI_U32 u32LeftStreamBytes;
  CVI_U32 u32LeftStreamFrames;
  CVI_U32 u32CurPacks;
  CVI_U32 u32LeftRecvPics;
  CVI_U32 u32LeftEncPics;
  CVI_BOOL bJpegSnapEnd;
  VENC_STREAM_INFO_S stVencStrmInfo;
} VENC_CHN_STATUS_S;

【Member】

Member	Description
u32LeftPics	Reserved
u32LeftStreamBytes	Reserved
u32LeftStreamFrames	Number of remaining frames to be received
u32CurPacks	The number of packets currently in the Frame
u32LeftRecvPics	Reserved
u32LeftEncPics	Reserved
bJpegSnapEnd	Reserved
stVencStrmInfo	Reserved

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_QueryStatus

7.4.15. VENC_JPEG_PARAM_S

【Description】

Define advanced parameters for JPEG encoding protocol.

【Syntax】

 typedef struct _VENC_JPEG_PARAM_S {
  CVI_U32 u32Qfactor;
  CVI_U8 u8YQt[64];
  CVI_U8 u8CbQt[64];
  CVI_U8 u8CrQt[64];
  CVI_U32 U32MCUPerECS;
} VENC_JPEG_PARAM_S;

【Member】

Member	Description
u32Qfactor	For details, see RFC2435. The default value is 0.
u8YQt	Y quantization table. (not implemented)
u8CbQt	Cb quantization table. (not implemented)
u8CrQt	Cr quantization table. (not implemented)
u32MCUPerECS	How many MCU are contained in each ECS? The default value is 0, indicating that Ecs are not divided. (not implemented)

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_SetJpegParam

• CVI_VENC_GetJpegParam

7.4.16. VENC_RC_ATTR_S

【Description】

Defines the rate controller attribute of the coding channel.

【Syntax】

 typedef struct _VENC_RC_ATTR_S {
  VENC_RC_MODE_E enRcMode;
  union {
  VENC_H264_CBR_S stH264Cbr;
  VENC_H264_VBR_S stH264Vbr;
  VENC_H264_AVBR_S stH264AVbr;
  VENC_H264_QVBR_S stH264QVbr;
  VENC_H264_FIXQP_S stH264FixQp;
  VENC_H264_QPMAP_S stH264QpMap;

  VENC_MJPEG_CBR_S stMjpegCbr;
  VENC_MJPEG_VBR_S stMjpegVbr;
  VENC_MJPEG_FIXQP_S stMjpegFixQp;

  VENC_H265_CBR_S stH265Cbr;
  VENC_H265_VBR_S stH265Vbr;
  VENC_H265_AVBR_S stH265AVbr;
  VENC_H265_QVBR_S stH265QVbr;
  VENC_H265_FIXQP_S stH265FixQp;
  VENC_H265_QPMAP_S stH265QpMap;
  };
} VENC_RC_ATTR_S;

【Member】

Member	Description
enRcMode	RC mode.
stH264Cbr	H.264 protocol coding channel Cbr mode attribute.
stH264Vbr	H.264 protocol coding channel Vbr mode attribute.
stH264AVbr	H.264 protocol coding channel AVbr mode attribute.
stH264QVbr	H.264 protocol coding channel QVbr mode attribute.
stH264CVbr	H.264 protocol coding channel CVbr mode attribute.
stH264FixQp	H.264 protocol coding channel Fixqp mode attribute.
stH264QpMap	H.264 protocol coding channel QPMAP mode attribute.
stMjpegeFixQp	Mjpeg protocol coding channel Fixqp mode attribute.
stMjpegeCbr	Mjpeg protocol coding channel cbr mode attribute.
stMjpegeVbr	Mjpeg protocol coding channel vbr mode attribute.
stH265Cbr	H.265 protocol coding channel Cbr mode attribute.
stH265Vbr	H.265 protocol coding channel Vbr mode attribute.
stH265AVbr	H.265 protocol coding channel AVbr mode attribute.
stH265QVbr	H.265 protocol coding channel QVbr mode attribute.
stH265CVbr	H.265 protocol coding channel CVbr mode attribute.
stH265FixQp	H.265 protocol coding channel Fixqp mode attribute.
stH265QpMap	H.265 protocol coding channel QPMAP mode attribute.

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_CreateChn

7.4.17. VENC_H264_CBR_S

【Description】

Structure definition for H.264 video encoding channel’s CBR properties.

【Syntax】

 typedef struct _VENC_H264_CBR_S {
  CVI_U32 u32Gop;
  CVI_U32 u32StatTime;
  CVI_U32 u32SrcFrameRate
  CVI_FR32 fr32DstFrameRate;
  CVI_U32 u32BitRate;
  CVI_BOOL bVariFpsEn;
} VENC_H264_CBR_S;

【Member】

Member	Description
u32Gop	H.264 gop value. Range: [1, 65536]。
u32StatTime	CBR rate statistics time, in seconds. Range: [1, 60].
u32SrcFrameRate	Input frame rate in fps.
fr32DstFrameRate	Encoder output frame rate, in fps.
u32BitRate	Average bitrate in kbps.
bVariFpsEn	Enable Variable FPS. After this function is enabled, the Frame rate conversion function is enabled and disabled.

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_CreateChn

7.4.18. VENC_H264_VBR_S

【Description】

Structure definition for H.264 video encoding channel’s VBR properties.

【Syntax】

 typedef struct _VENC_H264_VBR_S {
  CVI_U32 u32Gop;
  CVI_U32 u32StatTime;
  CVI_U32 u32SrcFrameRate;
  CVI_FR32 fr32DstFrameRate;
  CVI_U32 u32MaxBitRate;
  CVI_BOOL bVariFpsEn;
} VENC_H264_VBR_S;

【Member】

Member	Description
u32Gop	H.264 gop value Range: [1, 65536]。
u32StatTime	VBR rate statistics time, in seconds.. Range: [1, 60].
u32SrcFrameRate	Input frame rate in fps,
fr32DstFrameRate	Encoder output frame rate, in fps.
u32MaxBitRate	Maximum output bitrate of the encoder, in kbps.
bVariFpsEn	Enable Variable FPS. After this function is enabled, the Frame rate conversion function is enabled and disabled.

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_CreateChn

7.4.19. VENC_H264_AVBR_S

【Description】

Structure definition for H.264 video encoding channel’s AVBR properties.

【Syntax】

 typedef struct _VENC_H264_AVBR_S {
  CVI_U32 u32Gop;
  CVI_U32 u32StatTime;
  CVI_U32 u32SrcFrameRate;
  CVI_FR32 fr32DstFrameRate;
  CVI_U32 u32MaxBitRate;
  CVI_BOOL bVariFpsEn;
} VENC_H264_AVBR_S;

【Member】

Member	Description
u32Gop	H.264 gop value. Range: [1, 65536]。
u32StatTime	VBR rate statistics time, in seconds.. Range: [1, 60].
u32SrcFrameRate	Input frame rate in fps.
fr32DstFrameRate	Encoder output frame rate, in fps.
u32MaxBitRate	Maximum output bitrate of the encoder, in kbps.
bVariFpsEn	Enable Variable FPS. After this function is enabled, the Frame rate conversion function is enabled and disabled.

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_CreateChn

7.4.20. VENC_H264_FIXQP_S

【Description】

Structure definition for H.264 video encoding channel’s FIXQP properties.

【Syntax】

 typedef struct _VENC_H264_FIXQP_S {
  CVI_U32 u32Gop;
  CVI_U32 u32SrcFrameRate;
  CVI_FR32 fr32DstFrameRate
  CVI_U32 u32IQp;
  CVI_U32 u32PQp;
  CVI_U32 u32BQp;
  CVI_BOOL bVariFpsEn;
} VENC_H264_FIXQP_S;

【Member】

Member	Description
u32Gop	H.264 gop value Range: [1, 65536]。
u32IQp	QP value of all macroblocks in I frame.
u32SrcFrameRate	Input frame rate in fps.
fr32DstFrameRate	Encoder output frame rate, in fps.
u32PQp	The QP value of all macroblocks in P frame.
u32BQp	QP values of all macroblocks in B frame.
bVariFpsEn	Enable Variable FPS. After this function is enabled, the Frame rate conversion function is enabled and disabled.

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_CreateChn

7.4.21. VENC_H264_QPMAP_S

【Description】

Structure definition for H.264 video encoding channel’s QPMAP properties.

【Syntax】

 typedef struct _VENC_H264_QPMAP_S {
  CVI_U32 u32Gop;
  CVI_U32 u32StatTime;
  CVI_U32 u32SrcFrameRate;
  CVI_FR32 fr32DstFrameRate;
  CVI_BOOL bVariFpsEn;
} VENC_H264_QPMAP_S;

【Member】

Member	Description
u32Gop	H.264 gop value Range: [1, 65536]。
u32SrcFrameRate	Input frame rate in fps.
fr32DstFrameRate	Encoder output frame rate, in fps.
u32StatTime	QPMAP rate statistics time, in seconds..
bVariFpsEn	Enable Variable FPS. After this function is enabled, the Frame rate conversion function is enabled and disabled.

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_CreateChn

7.4.22. VENC_MJPEG_FIXQP_S

【Description】

Structure definition for MJPEG video encoding channel’s FIXQP properties.

【Syntax】

 typedef struct _VENC_MJPEG_FIXQP_S {
  CVI_U32 u32SrcFrameRate
  CVI_FR32 fr32DstFrameRate;
  CVI_U32 u32Qfactor;
  CVI_BOOL bVariFpsEn;
} VENC_MJPEG_FIXQP_S;

【Member】

Member	Description
u32SrcFrameRate	Input frame rate in fps.
fr32DstFrameRate	Encoder output frame rate, in fps.
bVariFpsEn	Enable Variable FPS. After this function is enabled, the Frame rate conversion function is enabled and disabled.
u32Qfactor	Qfactor of MJPEG encoding

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_CreateChn

7.4.23. VENC_MJPEG_CBR_S

【Description】

Structure definition for MJPEG video encoding channel’s CBR properties.

【Syntax】

 typedef struct _VENC_MJPEG_CBR_S {
  CVI_U32 u32StatTime;
  CVI_U32 u32SrcFrameRate;
  CVI_FR32 fr32DstFrameRate;
  CVI_U32 u32BitRate;
  CVI_BOOL bVariFpsEn;
} VENC_MJPEG_CBR_S;

【Member】

Member	Description
u32StatTime	CBR rate statistics time, in seconds..
u32BitRate	Average bitrate in kbps.
u32SrcFrameRate	Input frame rate in fps.
fr32DstFrameRate	Encoder output frame rate, in fps.
bVariFpsEn	Enable Variable FPS. After this function is enabled, the Frame rate conversion function is enabled and disabled.

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_CreateChn

7.4.24. VENC_H265_CBR_S

【Description】

Structure definition for H.265 video encoding channel’s CBR properties.

【Syntax】

 typedef struct _VENC_H264_CBR_S {
    CVI_U32 u32Gop;
    CVI_U32 u32StatTime
    CVI_U32 u32SrcFrameRate;
    CVI_FR32 fr32DstFrameRate;
    CVI_U32 u32BitRate;
    CVI_BOOL bVariFpsEn;
} VENC_H264_CBR_S;
typedef struct _VENC_H264_CBR_S VENC_H265_CBR_S;

【Member】

Member	Description
u32Gop	H.265 gop value
u32StatTime	CBR rate statistics time, in seconds..
u32SrcFrameRate	Input frame rate in fps.
fr32DstFrameRate	Encoder output frame rate, in fps.
u32BitRate	Average bitrate in kbps.
bVariFpsEn	Enable Variable FPS. After this function is enabled, the Frame rate conversion function is enabled and disabled.

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_CreateChn

7.4.25. VENC_H265_VBR_S

【Description】

Structure definition for H.265 video encoding channel’s VBR properties.

【Syntax】

 typedef struct _VENC_H264_FIXQP_S {
  CVI_U32 u32Gop;
  CVI_U32 u32SrcFrameRate;
  CVI_FR32 fr32DstFrameRate
  CVI_U32 u32IQp;
  CVI_U32 u32PQp;
  CVI_U32 u32BQp;
  CVI_BOOL bVariFpsEn;
} VENC_H264_FIXQP_S;

【Member】

Member	Description
u32Gop	H.265 gop value
u32StatTime	VBR rate statistics time, in seconds..
u32SrcFrameRate	Input frame rate in fps.
fr32DstFrameRate	Encoder output frame rate, in fps.
u32MaxBitRate	Maximum output bitrate of the encoder, in kbps.
bVariFpsEn	Enable Variable FPS. After this function is enabled, the Frame rate conversion function is enabled and disabled.

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_CreateChn

7.4.26. VENC_H265_AVBR_S

【Description】

Structure definition for H.265 video encoding channel’s AVBR properties.

【Syntax】

typedef struct _VENC_H264_AVBR_S {
  CVI_U32 u32Gop;
  CVI_U32 u32StatTime;
  CVI_U32 u32SrcFrameRate;
  CVI_FR32 fr32DstFrameRate;
  CVI_U32 u32MaxBitRate;
  CVI_BOOL bVariFpsEn;
} VENC_H264_AVBR_S;
typedef struct _VENC_H264_AVBR_S VENC_H265_AVBR_S;

【Member】

Member	Description
u32Gop	H.265 gop value. range
u32StatTime	AVBR rate statistics time, in seconds.
u32SrcFrameRate	Input frame rate in fps.
fr32DstFrameRate	Encoder output frame rate, in fps.
u32MaxBitRate	Maximum output bitrate of the encoder, in kbps.
bVariFpsEn	Enable Variable FPS. After this function is enabled, the Frame rate conversion function is enabled and disabled.
u32Gop	H.264 gop value. Range: [1, 65536]。

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_CreateChn

7.4.27. VENC_H265_FIXQP_S

【Description】

Structure definition for H.265 video encoding channel’s FIXQP properties.

【Syntax】

typedef struct _VENC_H264_FIXQP_S {
  CVI_U32 u32Gop;
  CVI_U32 u32SrcFrameRate;
  CVI_FR32 fr32DstFrameRate;
  CVI_U32 u32IQp;
  CVI_U32 u32PQp;
  CVI_U32 u32BQp;
  CVI_BOOL bVariFpsEn;
} VENC_H264_FIXQP_S;
typedef struct _VENC_H264_FIXQP_S VENC_H265_FIXQP_S;

【Member】

Member	Description
u32Gop	H.265 gop value
u32IQp	QP value of all macroblocks in I frame.
u32SrcFrameRate	Input frame rate in fps.
fr32DstFrameRate	Encoder output frame rate, in fps.
u32PQp	QP value of all macroblocks in P frame.
u32BQp	Reserved
bVariFpsEn	Enable Variable FPS. After this function is enabled, the Frame rate conversion function is enabled and disabled.

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_CreateChn

7.4.28. VENC_H265_QPMAP_S

【Description】

Structure definition for H.265 video encoding channel’s QPMAP properties.

【Syntax】

 typedef struct _VENC_H265_QPMAP_S {
  CVI_U32 u32Gop;
  CVI_U32 u32StatTime;
  CVI_U32 u32SrcFrameRate;
  CVI_FR32 fr32DstFrameRate;
  VENC_RC_QPMAP_MODE_E enQpMapMode;
  CVI_BOOL bVariFpsEn;
} VENC_H265_QPMAP_S;

【Member】

Member	Description
u32Gop	H.264 gop value Range: [1, 65536]。
u32StatTime	VBR rate statistical time in seconds
u32SrcFrameRate	Input frame rate in fps.
fr32DstFrameRate	Encoder output frame rate, in fps.
enQpMapMode	The method of selecting the QP value as either CU32 or CU64
u32BQp	QP values of all macroblocks in B frame.
bVariFpsEn	Enable Variable FPS. After this function is enabled, the Frame rate conversion function is enabled and disabled.

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_CreateChn

7.4.29. VENC_RC_PARAM_S

【Description】

Definition of advanced bitrate control parameters for encoding channels. Main structure for bitrate control.

【Syntax】

typedef struct _VENC_RC_PARAM_S {
  CVI_U32 u32ThrdI[RC_TEXTURE_THR_SIZE];
  CVI_U32 u32ThrdP[RC_TEXTURE_THR_SIZE];
  CVI_U32 u32ThrdB[RC_TEXTURE_THR_SIZE];
  CVI_U32 u32DirectionThrd;
  CVI_S32 s32FirstFrameStartQp;
  CVI_S32 s32InitialDelay;
  CVI_U32 u32ThrdLv;
  CVI_BOOL bBgEnhanceEn;
  CVI_S32 s32BgDeltaQp;
  union {
  VENC_PARAM_H264_CBR_S stParamH264Cbr;
  VENC_PARAM_H264_VBR_S stParamH264Vbr;
  VENC_PARAM_H264_AVBR_S stParamH264AVbr;
  VENC_PARAM_H264_QVBR_S stParamH264QVbr;
  VENC_PARAM_H265_CBR_S stParamH265Cbr;
  VENC_PARAM_H265_VBR_S stParamH265Vbr;
  VENC_PARAM_H265_AVBR_S stParamH265AVbr;
  VENC_PARAM_H265_QVBR_S stParamH265QVbr;
  VENC_PARAM_MJPEG_CBR_S stParamMjpegCbr;
  VENC_PARAM_MJPEG_VBR_S stParamMjpegVbr;
  };
} VENC_RC_PARAM_S;

【Member】

Member	Description
u32ThrdI	Reserved
u32ThrdP	Reserved
u32ThrdB	Reserved
u32DirectionThrd	Reserved
u32RowQpDelta	The fluctuation amplitude value of the starting Qp for each row of macroblocks in macroblock-level bitrate control relative to the starting Qp of the frame.
s32FirstFrameStartQp	Set the initial Qp value of the first frame, CBR/VBR/AVBR/QVBR/CVBR is valid.
stSceneChangeDetect	Reserved
s32InitialDelay	Influence the frame encoding of the bitrate control.
u32ThrdLv	MAD threshold for macroblock level rate control
bBgEnhanceEn	Reserved
s32BgDeltaQp	The QP difference between IDR frame and P frame in smartP mode.
stParamH264Cbr	Advanced parameters for CBR rate control mode in H.264 channel.
stParamH264Vbr	Advanced parameters for VBR rate control mode in H.264 channel.
stParamH264AVbr	Advanced parameters for AVBR rate control mode in H.264 channel.
stParamH264QVbr	Reserved
stParamH264CVbr	Reserved
stParamMjpegCbr	Advanced parameters for CBR rate control mode in MJPEG channel.
stParamMjpegVbr	Reserved
stParamH265Cbr	Advanced parameters for CBR rate control mode in H.265 channel.
stParamH265Vbr	Advanced parameters for VBR rate control mode in H.265 channel.
stParamH265AVbr	Advanced parameters for AVBR rate control mode in H.265 channel.
stParamH265QVbr	Reserved
stParamH265CVbr	Reserved

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_SetRcParam

• CVI_VENC_GetRcParam

7.4.30. VENC_PARAM_H264_CBR_S

【Description】

Definition of H.264 CBR advanced parameters

【Syntax】

 typedef struct _VENC_PARAM_H264_CBR_S {
  CVI_U32 u32MinIprop;
  CVI_U32 u32MaxIprop;
  CVI_U32 u32MaxQp;
  CVI_U32 u32MinQp;
  CVI_U32 u32MaxIQp;
  CVI_U32 u32MinIQp;
  CVI_S32 s32MaxReEncodeTimes;
  CVI_BOOL bQpMapEn;
} VENC_PARAM_H264_CBR_S;

【Member】

Member	Description
u32MinIprop	minimum IP ratio
u32MaxIprop	maximum IP ratio
u32MaxQp	Minimum QP
u32MinQp	Maximum QP
u32MaxIQp	Maximum QP for I-frames
u32MinIQp	Minimum QP for I-frames
s32MaxReEncodeTimes	Reserved
CVI_BOOL bQpMapEn	Reserved

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_SetRcParam

• CVI_VENC_GetRcParam

7.4.31. VENC_PARAM_H264_VBR_S

【Description】

Definition of H.264 VBR advanced parameters

【Syntax】

 typedef struct _VENC_PARAM_H264_VBR_S {
  CVI_S32 s32ChangePos;
  CVI_U32 u32MinIprop;
  CVI_U32 u32MaxIprop;
  CVI_S32 s32MaxReEncodeTimes;
  CVI_BOOL bQpMapEn;

  CVI_U32 u32MaxQp;
  CVI_U32 u32MinQp;
  CVI_U32 u32MaxIQp;
  CVI_U32 u32MinIQp;
} VENC_PARAM_H264_VBR_S;

【Member】

Member	Description
s32ChangePos	bitrate control threshold
u32MinIprop	Reserved
u32MaxIprop	maximum IP ratio
s32MaxReEncodeTimes	Reserved
CVI_BOOL bQpMapEn	Reserved
u32MaxQp	Maximum QP
u32MinQp	Minimum QP
u32MaxIQp	maximum QP for I-frames
u32MinIQp	minimum QP for I-frames

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_SetRcParam

• CVI_VENC_GetRcParam

7.4.32. VENC_PARAM_H264_AVBR_S

【Description】

Definition of H.264 AVBR advanced parameters

【Syntax】

 typedef struct _VENC_PARAM_H264_AVBR_S {
  CVI_S32 s32ChangePos;
  CVI_U32 u32MinIprop;
  CVI_U32 u32MaxIprop;
  CVI_S32 s32MaxReEncodeTimes;
  CVI_BOOL bQpMapEn;

  CVI_S32 s32MinStillPercent;
  CVI_U32 u32MaxStillQP;
  CVI_U32 u32MinStillPSNR;

  CVI_U32 u32MaxQp;
  CVI_U32 u32MinQp;
  CVI_U32 u32MaxIQp;
  CVI_U32 u32MinIQp;
  CVI_U32 u32MinQpDelta;

  CVI_U32 u32MotionSensitivity;
  CVI_S32 s32AvbrFrmLostOpen;
  CVI_S32 s32AvbrFrmGap;
  CVI_S32 s32AvbrPureStillThr;
} VENC_PARAM_H264_AVBR_S;

【Member】

Member	Description
s32ChangePos	bitrate control threshold
u32MinIprop	Reserved
u32MaxIprop	maximum IP ratio
s32MaxReEncodeTimes	Reserved
CVI_BOOL bQpMapEn	Reserved
s32MinStillPercent	minimum bitrate percentage for static scenes
u32MaxStillQP	Maximum QP for static scenes
u32MinStillPSNR	Reserved
u32MaxQp	Maximum QP
u32MinQp	Minimum QP
u32MaxIQp	Maximum QP for I-frames
u32MinIQp	Minimum QP for I-frames
u32MinQpDelta	The difference between frame-level minimum QP and macroblock-level minimum QP
u32MotionSensitivity	Motion sensitivity
s32AvbrFrmLostOpen	Frame dropping enable
s32AvbrFrmGap	Maximum number of dropped frames
s32AvbrPureStillThr	Still macroblock threshold value

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_SetRcParam

• CVI_VENC_GetRcParam

7.4.33. VENC_PARAM_H265_CBR_S

【Description】

Definition of H.265 CBR advanced parameters

【Syntax】

 typedef struct _VENC_PARAM_H265_CBR_S {
  CVI_U32 u32MinIprop;
  CVI_U32 u32MaxIprop;
  CVI_U32 u32MaxQp;
  CVI_U32 u32MinQp;
  CVI_U32 u32MaxIQp;
  CVI_U32 u32MinIQp;
  CVI_S32 s32MaxReEncodeTimes;
  CVI_BOOL bQpMapEn;
  VENC_RC_QPMAP_MODE_E enQpMapMode;
} VENC_PARAM_H265_CBR_S;

【Member】

Member	Description
u32MinIprop	Reserved
u32MaxIprop	Reserved
u32MaxQp	Maximum QP
u32MinQp	Minimum QP
u32MaxIQp	Maximum QP for I-frames
u32MinIQp	Minimum QP for I-frames
s32MaxReEncodeTimes	Reserved
bQpMapEn	Enable QP map feature or not
enQpMapMode	QpMap mode

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_SetRcParam

• CVI_VENC_GetRcParam

7.4.34. VENC_PARAM_H265_VBR_S

【Description】

Definition of H.265 VBR advanced parameters

【Syntax】

 typedef struct _VENC_PARAM_H265_VBR_S {
  CVI_S32 s32ChangePos;
  CVI_U32 u32MinIprop;
  CVI_U32 u32MaxIprop;
  CVI_S32 s32MaxReEncodeTimes;

  CVI_U32 u32MaxQp;
  CVI_U32 u32MinQp;
  CVI_U32 u32MaxIQp;
  CVI_U32 u32MinIQp;

  CVI_BOOL bQpMapEn;
  VENC_RC_QPMAP_MODE_E enQpMapMode;
} VENC_PARAM_H265_VBR_S;

【Member】

Member	Description
s32ChangePos	bitrate control threshold
u32MinIprop	Reserved
u32MaxIprop	Reserved
s32MaxReEncodeTimes	Reserved
u32MaxQp	Maximum QP
u32MinQp	Minimum QP
u32MaxIQp	Maximum QP for I-frames
u32MinIQp	Minimum QP for I-frames
CVI_BOOL bQpMapEn	Reserved
enQpMapMode	Reserved

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_SetRcParam

• CVI_VENC_GetRcParam

7.4.35. VENC_PARAM_H265_AVBR_S

【Description】

Definition of H.265 AVBR advanced parameters

【Syntax】

 typedef struct _VENC_PARAM_H265_AVBR_S {
  CVI_S32 s32ChangePos;
  CVI_U32 u32MinIprop;
  CVI_U32 u32MaxIprop;
  CVI_S32 s32MaxReEncodeTimes;

  CVI_S32 s32MinStillPercent;
  CVI_U32 u32MaxStillQP;
  CVI_U32 u32MinStillPSNR;

  CVI_U32 u32MaxQp;
  CVI_U32 u32MinQp;
  CVI_U32 u32MaxIQp;
  CVI_U32 u32MinIQp;
  CVI_U32 u32MinQpDelta;

  CVI_U32 u32MotionSensitivity;
  CVI_S32 s32AvbrFrmLostOpen;
  CVI_S32 s32AvbrFrmGap;
  CVI_S32 s32AvbrPureStillThr;
  CVI_BOOL bQpMapEn;
  VENC_RC_QPMAP_MODE_E enQpMapMode;
} VENC_PARAM_H265_AVBR_S;

【Member】

Member	Description
s32ChangePos	Bitrate control threshold
u32MinIprop	Reserved
u32MaxIprop	Reserved
s32MaxReEncodeTimes	Reserved
s32MinStillPercent	Minimum bitrate percentage for static scenes
u32MaxStillQP	Maximum QP for static scenes
u32MinStillPSNR	Reserved
u32MaxQp	Maximum QP
u32MinQp	Minimum QP
u32MaxIQp	Maximum QP for I-frames
u32MinIQp	Minimum QP for I-frames
u32MinQpDelta	The difference between frame-level minimum QP and macroblock-level minimum QP
u32MotionSensitivity	Motion sensitivity
s32AvbrFrmLostOpen	Frame dropping enable
s32AvbrFrmGap	Maximum number of dropped frames
s32AvbrPureStillThr	Still macroblock threshold value
bQpMapEn	Reserved
enQpMapMode	Reserved

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_SetRcParam

• CVI_VENC_GetRcParam

7.4.36. VENC_PARAM_MOD_S

【Description】

Encoding-related module parameters

【Syntax】

typedef struct _VENC_MODPARAM_S {
    VENC_MODTYPE_E enVencModType; /* RW; VencModType*/
    union {
        VENC_MOD_VENC_S stVencModParam;
        VENC_MOD_H264E_S stH264eModParam;
        VENC_MOD_H265E_S stH265eModParam;
        VENC_MOD_JPEGE_S stJpegeModParam;
        VENC_MOD_RC_S stRcModParam;
    };
} VENC_PARAM_MOD_S;

【Member】

Member	Description
enVencModType	Types of module parameters
stVencModParam /stH264eModParam /stH265eModParam /stJpegeModParam /stRcModParam	Venc / H264e / H265e / Jpege / Rc module parameter structure.

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_SetModParam

• CVI_VENC_GetModParam

7.4.37. VENC_MOD_H264E_S

【Description】

H.264 encoding-related module parameters

【Syntax】

 typedef struct _VENC_MOD_H264E_S {
  CVI_U32 u32OneStreamBuffer;
  CVI_U32 u32H264eMiniBufMode;
  CVI_U32 u32H264ePowerSaveEn;
  VB_SOURCE_E enH264eVBSource;
  CVI_BOOL bQpHstgrmEn;
  CVI_U32 u32UserDataMaxLen;
  CVI_BOOL bSingleEsBuf;
  CVI_U32 u32SingleEsBufSize;
} VENC_MOD_H264E_S;

【Member】

Member	Description
u32OneStreamBuffer	Reserved
u32H264eMiniBufMode	Reserved
u32H264ePowerSaveEn	Reserved
enH264eVBSource	VB mode
bQpHstgrmEn	Reserved
u32UserDataMaxLen	Maximum user data size
bSingleEsBuf	Multiple channels using a shared stream buffer
u32SingleEsBufSize	StreamBuffer size

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_SetModParam

• CVI_VENC_GetModParam

7.4.38. VENC_MOD_H265E_S

【Description】

H.265 encoding-related module parameters

【Syntax】

 typedef struct _VENC_MOD_H265E_S {
  CVI_U32 u32OneStreamBuffer;
  CVI_U32 u32H265eMiniBufMode;
  CVI_U32 u32H265ePowerSaveEn;
  VB_SOURCE_E enH265eVBSource;
  CVI_BOOL bQpHstgrmEn;
  CVI_U32 u32UserDataMaxLen;
  CVI_BOOL bSingleEsBuf;
  CVI_U32 u32SingleEsBufSize;
  H265E_REFRESH_TYPE_E enRefreshType;
} VENC_MOD_H265E_S;

【Member】

Member	Description
u32OneStreamBuffer	Reserved
u32H265eMiniBufMode	Reserved
u32H265ePowerSaveEn	Reserved
enH265eVBSource	VB mode
bQpHstgrmEn	Reserved
u32UserDataMaxLen	Maximum user data size
bSingleEsBuf	Multiple channels using a shared stream buffer
u32SingleEsBufSize	StreamBuffer size
enRefreshType	Refresh type

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_SetModParam

• CVI_VENC_GetModParam

7.4.39. VENC_MOD_JPEGE_S

【Description】

JPEG encoding-related module parameters

【Syntax】

 typedef struct _VENC_MOD_JPEGE_S {
  CVI_U32 u32OneStreamBuffer;
  CVI_U32 u32JpegeMiniBufMode;
  CVI_U32 u32JpegClearStreamBuf;
  CVI_BOOL bSingleEsBuf;
  CVI_U32 u32SingleEsBufSize;
  JPEGE_FORMAT_E enJpegeFormat;
  JPEGE_MARKER_TYPE_E JpegMarkerOrder[JPEG_MARKER_ORDER_CNT];
} VENC_MOD_JPEGE_S;

【Member】

Member	Description
u32OneStreamBuffer	Reserved
u32JpegeMiniBufMode	Reserved
u32JpegClearStreamBuf	Reserved
bSingleEsBuf	Multiple channels using a shared stream buffer
u32SingleEsBufSize	StreamBuffer size
enJpegeFormat	JPEG header encoding mode
JpegMarkerOrder	Header encoding mark order

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_SetModParam

• CVI_VENC_GetModParam

7.4.40. VENC_CHN_POOL_S

【Description】

Define the VB pool structure, which is bound to the encoding channel.

【Syntax】

 typedef struct _VENC_CHN_POOL_S {
    VB_POOL hPicVbPool; /* RW;  vb pool id for pic buffer */
    VB_POOL hPicInfoVbPool; /* RW;  vb pool id for pic info buffer */
} VENC_CHN_POOL_S;

【Member】

Member	Description
hPicVbPool	VB pool Poold for storing Picture
hPicInfoVbPool	VB pool Poold for storing Picture information

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_AttachVbPool

7.4.41. VENC_FRAMELOST_S

【Description】

Define the encoding frame dropping structure.

【Syntax】

 typedef struct _VENC_FRAMELOST_S {
  CVI_BOOL bFrmLostOpen;
  CVI_U32 u32FrmLostBpsThr;
  VENC_FRAMELOST_MODE_E enFrmLostMode;
  CVI_U32 u32EncFrmGaps;
} VENC_FRAMELOST_S;

【Member】

Member	Description
bFrmLostOpen	Frame dropping strategy enable
u32FrmLostBpsThr	Frame dropping bitrate threshold value
enFrmLostMode	Frame dropping mode
u32EncFrmGaps	Maximum consecutive dropped frames

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_SetFrameLostStrategy

• CVI_VENC_GetFrameLostStrategy

7.4.42. VENC_H264_ENTROPY_S

【Description】

Define H.264 entropy coding information structure.

【Syntax】

 typedef struct _VENC_H264_ENTROPY_S {
  CVI_U32 u32EntropyEncModeI;
  CVI_U32 u32EntropyEncModeP;
  CVI_U32 u32EntropyEncModeB;
  CVI_U32 cabac_init_idc;
} VENC_H264_ENTROPY_S;

【Member】

Member	Description
u32EntropyEncModeI	I-frame entropy coding mode: 0 for CAVLC and 1 for CABAC.
u32EntropyEncModeP	P-frame entropy coding mode: 0 for CAVLC and 1 for CABAC.
u32EntropyEncModeB	Reserved, not used yet
cabac_init_idc	Refer to H264 encoding protocol

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_SetH264Entropy

• CVI_VENC_GetH264Entropy

7.4.43. VENC_CU_PREDICTION_S

【Description】

Define the structure of coding unit prediction properties

【Syntax】

 typedef struct _VENC_CU_PREDICTION_S {
  OPERATION_MODE_E enPredMode;

  CVI_U32 u32IntraCost;
  CVI_U32 u32Intra32Cost;
  CVI_U32 u32Intra16Cost;
  CVI_U32 u32Intra8Cost;
  CVI_U32 u32Intra4Cost;

  CVI_U32 u32Inter64Cost;
  CVI_U32 u32Inter32Cost;
  CVI_U32 u32Inter16Cost;
  CVI_U32 u32Inter8Cost;
} VENC_CU_PREDICTION_S;

【Member】

Member	Description
enPredMode	Reserved, not used yet
u32IntraCost	Default to 0, used to reduce the probability of Intra Blocks.
u32Intra32Cost	Reserved, not used yet
u32Intra16Cost	Reserved, not used yet
u32Intra8Cost	Reserved, not used yet
u32Intra4Cost	Reserved, not used yet
u32Inter64Cost	Reserved, not used yet
u32Inter32Cost	Reserved, not used yet
u32Inter16Cost	Reserved, not used yet
u32Inter8Cost	Reserved, not used yet

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_SetCuPrediction

• CVI_VENC_GetCuPrediction

7.4.44. VENC_H264_TRANS_S

【Description】

Define the structure of the H.264 protocol encoding channel transformation quantization.

【Syntax】

 typedef struct _VENC_H264_TRANS_S {
  CVI_U32 u32IntraTransMode;
  CVI_U32 u32InterTransMode;
  CVI_BOOL bScalingListValid;
  CVI_U8 InterScalingList8X8[64];
  CVI_U8 IntraScalingList8X8[64];
  CVI_S32 chroma_qp_index_offset;
} VENC_H264_TRANS_S;

【Member】

Member	Description
u32IntraTransMode	Reserved, not used yet
u32InterTransMode	Reserved, not used yet
bScalingListValid	Reserved, not used yet
InterScalingList8X8[64]	Reserved, not used yet
IntraScalingList8X8[64]	Reserved, not used yet
chroma_qp_index_offset	For details, see H.264 Protocol. The default value is 0. Value range: [-12, 12]

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_GetH264Trans

• CVI_VENC_SetH264Trans

7.4.45. VENC_H265_TRANS_S

【Description】

Define the structure of the H.265 protocol encoding channel transformation quantization.

【Syntax】

 typedef struct _VENC_H265_TRANS_S {
  CVI_S32 cb_qp_offset;
  CVI_S32 cr_qp_offset;

  CVI_BOOL bScalingListEnabled;

  CVI_BOOL bScalingListTu4Valid;
  CVI_U8 InterScalingList4X4[2][16];
  CVI_U8 IntraScalingList4X4[2][16];

  CVI_BOOL bScalingListTu8Valid;
  CVI_U8 InterScalingList8X8[2][64];
  CVI_U8 IntraScalingList8X8[2][64];

  CVI_BOOL bScalingListTu16Valid;
  CVI_U8 InterScalingList16X16[2][64];
  CVI_U8 IntraScalingList16X16[2][64];

  CVI_BOOL bScalingListTU32Valid;
  CVI_U8 InterScalingList32X32[64];
  CVI_U8 IntraScalingList32X32[64];
} VENC_H265_TRANS_S;

【Member】

Member	Description
cb_qp_offset	For details, see H.265 Protocol. The default value is 0. Value range: [-12, 12]
cr_qp_offset	For details, see H.265 Protocol. The default value is 0. Value range: [-12, 12]
bScalingListEnabled	Reserved, not used yet
bScalingListTu4Valid	Reserved, not used yet
InterScalingList4X4[2][16]	Reserved, not used yet
IntraScalingList4X4[2][16]	Reserved, not used yet
bScalingListTu8Valid	Reserved, not used yet
InterScalingList8X8[2][64]	Reserved, not used yet
IntraScalingList8X8[2][64]	Reserved, not used yet
bScalingListTu16Valid	Reserved, not used yet
InterScalingList16X16[2][64]	Reserved, not used yet
IntraScalingList16X16[2][64]	Reserved, not used yet
bScalingListTu32Valid	Reserved, not used yet
InterScalingList32X32[64]	Reserved, not used yet
IntraScalingList32X32[64]	Reserved, not used yet

【Note】

None.

【Related Data Type and Interface】

• CVI_VENC_GetH265Trans

• CVI_VENC_SetH265Trans