## NVIDIA DRIVE OS Linux API Reference

#### 5.1.3.0 Release

NvMediaEncodeConfigH265 Struct Reference

## Detailed Description

Holds the H265 encoder configuration parameters.

Definition at line 2304 of file nvmedia_common.h.

Collaboration diagram for NvMediaEncodeConfigH265:

## Data Fields

uint32_t features
Holds bit-wise ORed configuration feature flags. More...

uint32_t gopLength
Holds the number of pictures in one GOP. More...

NvMediaEncodeRCParams rcParams
Holds the rate control parameters for the current encoding session. More...

NvMediaEncodeH264SPSPPSRepeatMode repeatSPSPPS
Holds the frequency of the writing of Sequence and Picture parameters. More...

uint32_t idrPeriod
Holds the IDR interval. More...

uint16_t numSliceCountMinus1
Set to 1 less than the number of slices desired per frame. More...

uint8_t disableDeblockingFilter
Holds disable the deblocking filter. More...

uint8_t enableWeightedPrediction
Holds enable weighted predition. More...

uint32_t intraRefreshPeriod
Holds the interval between frames that trigger a new intra refresh cycle and this cycle lasts for intraRefreshCnt frames. More...

uint32_t intraRefreshCnt
Holds the number of frames over which intra refresh will happen. More...

uint32_t maxSliceSizeInBytes
Holds the maximum slice size in bytes for dynamic slice mode. More...

uint32_t numCTUsPerSlice
Number of CTU per slice. More...

NvMediaEncodeConfigH265VUIParamsh265VUIParameters
Holds the H265 video usability info pamameters. More...

NvMediaEncodeQuality quality
Holds encode quality pre-set. More...

NvMediaEncodeQP initQP
Holds Initial QP parameters. More...

NvMediaEncodeQP maxQP
Holds maximum QP parameters. More...

## Field Documentation

 uint8_t NvMediaEncodeConfigH265::disableDeblockingFilter

Holds disable the deblocking filter.

Definition at line 2323 of file nvmedia_common.h.

 uint8_t NvMediaEncodeConfigH265::enableWeightedPrediction

Holds enable weighted predition.

Definition at line 2325 of file nvmedia_common.h.

 uint32_t NvMediaEncodeConfigH265::features

Holds bit-wise ORed configuration feature flags.

See the NvMediaEncodeH265Features enum.

Definition at line 2307 of file nvmedia_common.h.

 uint32_t NvMediaEncodeConfigH265::gopLength

Holds the number of pictures in one GOP.

Low latency application client can set the goplength field to NVMEDIA_ENCODE_INFINITE_GOPLENGTH so that keyframes are not inserted automatically.

Definition at line 2311 of file nvmedia_common.h.

 NvMediaEncodeConfigH265VUIParams* NvMediaEncodeConfigH265::h265VUIParameters

Holds the H265 video usability info pamameters.

Set to NULL if VUI is not needed

Definition at line 2352 of file nvmedia_common.h.

 uint32_t NvMediaEncodeConfigH265::idrPeriod

Holds the IDR interval.

If not set, this is made equal to NvMediaEncodeConfigH265::gopLength. Low latency application client can set IDR interval to NVMEDIA_ENCODE_INFINITE_GOPLENGTH so that IDR frames are not inserted automatically.

Definition at line 2319 of file nvmedia_common.h.

 NvMediaEncodeQP NvMediaEncodeConfigH265::initQP

Holds Initial QP parameters.

Client must set NVMEDIA_ENCODE_CONFIG_H265_INIT_QP in features to use this. QP values should be within the range of 1 to 51

Definition at line 2358 of file nvmedia_common.h.

 uint32_t NvMediaEncodeConfigH265::intraRefreshCnt

Holds the number of frames over which intra refresh will happen.

This value must be less than or equal to intraRefreshPeriod. Setting it to zero turns off the intra refresh functionality. Setting it to one essentially means that after every intraRefreshPeriod frames the encoded P frame contains only intra predicted macroblocks. This value is used only if the NVMEDIA_ENCODE_CONFIG_H265_ENABLE_INTRA_REFRESH is set in features.

Definition at line 2343 of file nvmedia_common.h.

 uint32_t NvMediaEncodeConfigH265::intraRefreshPeriod

Holds the interval between frames that trigger a new intra refresh cycle and this cycle lasts for intraRefreshCnt frames.

This value is used only if the NVMEDIA_ENCODE_CONFIG_H265_ENABLE_INTRA_REFRESH is set in features. The NVMEDIA_ENCODE_PIC_TYPE_P_INTRA_REFRESH picture type also triggers a new intra- refresh cycle and resets the current intra-refresh period. Setting it to zero results in that no automatic refresh cycles are triggered. In this case only NVMEDIA_ENCODE_PIC_TYPE_P_INTRA_REFRESH picture type can trigger a new refresh cycle.

Definition at line 2335 of file nvmedia_common.h.

 NvMediaEncodeQP NvMediaEncodeConfigH265::maxQP

Holds maximum QP parameters.

Client must set NVMEDIA_ENCODE_CONFIG_H265_QP_MAX in features to use this. The maximum QP values must be within the range of 1 to 51 and must be set to a value greater than NvMediaEncodeRCParams::minQP.

Definition at line 2363 of file nvmedia_common.h.

 uint32_t NvMediaEncodeConfigH265::maxSliceSizeInBytes

Holds the maximum slice size in bytes for dynamic slice mode.

The Client must set NVMEDIA_ENCODE_CONFIG_H265_ENABLE_DYNAMIC_SLICE_MODE in features to use max slice size in bytes.

Definition at line 2347 of file nvmedia_common.h.

 uint32_t NvMediaEncodeConfigH265::numCTUsPerSlice

Number of CTU per slice.

Set to 0 if fix number of macroblocks not required or maxSliceSizeInBytes or numSliceCountMinus1 is set to non-zero value.

Definition at line 2350 of file nvmedia_common.h.

 uint16_t NvMediaEncodeConfigH265::numSliceCountMinus1

Set to 1 less than the number of slices desired per frame.

Definition at line 2321 of file nvmedia_common.h.

 NvMediaEncodeQuality NvMediaEncodeConfigH265::quality

Holds encode quality pre-set.

See NvMediaEncodeQuality enum. Recommended pre-setting is NVMEDIA_ENCODE_QUALITY_L0.

Definition at line 2355 of file nvmedia_common.h.

 NvMediaEncodeRCParams NvMediaEncodeConfigH265::rcParams

Holds the rate control parameters for the current encoding session.

Definition at line 2313 of file nvmedia_common.h.

 NvMediaEncodeH264SPSPPSRepeatMode NvMediaEncodeConfigH265::repeatSPSPPS

Holds the frequency of the writing of Sequence and Picture parameters.

Definition at line 2315 of file nvmedia_common.h.

The documentation for this struct was generated from the following file: