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/*
* This copyright notice applies to this header file only :
*
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* Copyright ( c ) 2010 - 2019 NVIDIA Corporation
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*
* Permission is hereby granted , free of charge , to any person
* obtaining a copy of this software and associated documentation
* files ( the " Software " ) , to deal in the Software without
* restriction , including without limitation the rights to use ,
* copy , modify , merge , publish , distribute , sublicense , and / or sell
* copies of the software , and to permit persons to whom the
* software is furnished to do so , subject to the following
* conditions :
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software .
*
* THE SOFTWARE IS PROVIDED " AS IS " , WITHOUT WARRANTY OF ANY KIND ,
* EXPRESS OR IMPLIED , INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY , FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT . IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM , DAMAGES OR OTHER LIABILITY ,
* WHETHER IN AN ACTION OF CONTRACT , TORT OR OTHERWISE , ARISING
* FROM , OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE .
*/
/**
* \ file nvEncodeAPI . h
* NVIDIA GPUs - beginning with the Kepler generation - contain a hardware - based encoder
* ( referred to as NVENC ) which provides fully - accelerated hardware - based video encoding .
* NvEncodeAPI provides the interface for NVIDIA video encoder ( NVENC ) .
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* \ date 2011 - 2019
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* This file contains the interface constants , structure definitions and function prototypes .
*/
# ifndef _NV_ENCODEAPI_H_
# define _NV_ENCODEAPI_H_
# include <stdlib.h>
# ifdef _WIN32
# include <windows.h>
# endif
# ifdef _MSC_VER
# ifndef _STDINT
typedef __int32 int32_t ;
typedef unsigned __int32 uint32_t ;
typedef __int64 int64_t ;
typedef unsigned __int64 uint64_t ;
typedef signed char int8_t ;
typedef unsigned char uint8_t ;
typedef short int16_t ;
typedef unsigned short uint16_t ;
# endif
# else
# include <stdint.h>
# endif
# ifdef __cplusplus
extern " C " {
# endif
/**
* \ addtogroup ENCODER_STRUCTURE NvEncodeAPI Data structures
* @ {
*/
# ifdef _WIN32
# define NVENCAPI __stdcall
typedef RECT NVENC_RECT ;
# else
# define NVENCAPI
// =========================================================================================
# ifndef GUID
/*!
* \ struct GUID
* Abstracts the GUID structure for non - windows platforms .
*/
// =========================================================================================
typedef struct
{
uint32_t Data1 ; /**< [in]: Specifies the first 8 hexadecimal digits of the GUID. */
uint16_t Data2 ; /**< [in]: Specifies the first group of 4 hexadecimal digits. */
uint16_t Data3 ; /**< [in]: Specifies the second group of 4 hexadecimal digits. */
uint8_t Data4 [ 8 ] ; /**< [in]: Array of 8 bytes. The first 2 bytes contain the third group of 4 hexadecimal digits.
The remaining 6 bytes contain the final 12 hexadecimal digits . */
} GUID ;
# endif // GUID
/**
* \ struct _NVENC_RECT
* Defines a Rectangle . Used in : : NV_ENC_PREPROCESS_FRAME .
*/
typedef struct _NVENC_RECT
{
uint32_t left ; /**< [in]: X coordinate of the upper left corner of rectangular area to be specified. */
uint32_t top ; /**< [in]: Y coordinate of the upper left corner of the rectangular area to be specified. */
uint32_t right ; /**< [in]: X coordinate of the bottom right corner of the rectangular area to be specified. */
uint32_t bottom ; /**< [in]: Y coordinate of the bottom right corner of the rectangular area to be specified. */
} NVENC_RECT ;
# endif // _WIN32
/** @} */ /* End of GUID and NVENC_RECT structure grouping*/
typedef void * NV_ENC_INPUT_PTR ; /**< NVENCODE API input buffer */
typedef void * NV_ENC_OUTPUT_PTR ; /**< NVENCODE API output buffer*/
typedef void * NV_ENC_REGISTERED_PTR ; /**< A Resource that has been registered with NVENCODE API*/
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typedef void * NV_ENC_CUSTREAM_PTR ; /**< Pointer to CUstream*/
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# define NVENCAPI_MAJOR_VERSION 9
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# define NVENCAPI_MINOR_VERSION 1
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# define NVENCAPI_VERSION (NVENCAPI_MAJOR_VERSION | (NVENCAPI_MINOR_VERSION << 24))
/**
* Macro to generate per - structure version for use with API .
*/
# define NVENCAPI_STRUCT_VERSION(ver) ((uint32_t)NVENCAPI_VERSION | ((ver)<<16) | (0x7 << 28))
# define NVENC_INFINITE_GOPLENGTH 0xffffffff
# define NV_MAX_SEQ_HDR_LEN (512)
// =========================================================================================
// Encode Codec GUIDS supported by the NvEncodeAPI interface.
// =========================================================================================
// {6BC82762-4E63-4ca4-AA85-1E50F321F6BF}
static const GUID NV_ENC_CODEC_H264_GUID =
{ 0x6bc82762 , 0x4e63 , 0x4ca4 , { 0xaa , 0x85 , 0x1e , 0x50 , 0xf3 , 0x21 , 0xf6 , 0xbf } } ;
// {790CDC88-4522-4d7b-9425-BDA9975F7603}
static const GUID NV_ENC_CODEC_HEVC_GUID =
{ 0x790cdc88 , 0x4522 , 0x4d7b , { 0x94 , 0x25 , 0xbd , 0xa9 , 0x97 , 0x5f , 0x76 , 0x3 } } ;
// =========================================================================================
// * Encode Profile GUIDS supported by the NvEncodeAPI interface.
// =========================================================================================
// {BFD6F8E7-233C-4341-8B3E-4818523803F4}
static const GUID NV_ENC_CODEC_PROFILE_AUTOSELECT_GUID =
{ 0xbfd6f8e7 , 0x233c , 0x4341 , { 0x8b , 0x3e , 0x48 , 0x18 , 0x52 , 0x38 , 0x3 , 0xf4 } } ;
// {0727BCAA-78C4-4c83-8C2F-EF3DFF267C6A}
static const GUID NV_ENC_H264_PROFILE_BASELINE_GUID =
{ 0x727bcaa , 0x78c4 , 0x4c83 , { 0x8c , 0x2f , 0xef , 0x3d , 0xff , 0x26 , 0x7c , 0x6a } } ;
// {60B5C1D4-67FE-4790-94D5-C4726D7B6E6D}
static const GUID NV_ENC_H264_PROFILE_MAIN_GUID =
{ 0x60b5c1d4 , 0x67fe , 0x4790 , { 0x94 , 0xd5 , 0xc4 , 0x72 , 0x6d , 0x7b , 0x6e , 0x6d } } ;
// {E7CBC309-4F7A-4b89-AF2A-D537C92BE310}
static const GUID NV_ENC_H264_PROFILE_HIGH_GUID =
{ 0xe7cbc309 , 0x4f7a , 0x4b89 , { 0xaf , 0x2a , 0xd5 , 0x37 , 0xc9 , 0x2b , 0xe3 , 0x10 } } ;
// {7AC663CB-A598-4960-B844-339B261A7D52}
static const GUID NV_ENC_H264_PROFILE_HIGH_444_GUID =
{ 0x7ac663cb , 0xa598 , 0x4960 , { 0xb8 , 0x44 , 0x33 , 0x9b , 0x26 , 0x1a , 0x7d , 0x52 } } ;
// {40847BF5-33F7-4601-9084-E8FE3C1DB8B7}
static const GUID NV_ENC_H264_PROFILE_STEREO_GUID =
{ 0x40847bf5 , 0x33f7 , 0x4601 , { 0x90 , 0x84 , 0xe8 , 0xfe , 0x3c , 0x1d , 0xb8 , 0xb7 } } ;
// {CE788D20-AAA9-4318-92BB-AC7E858C8D36}
static const GUID NV_ENC_H264_PROFILE_SVC_TEMPORAL_SCALABILTY =
{ 0xce788d20 , 0xaaa9 , 0x4318 , { 0x92 , 0xbb , 0xac , 0x7e , 0x85 , 0x8c , 0x8d , 0x36 } } ;
// {B405AFAC-F32B-417B-89C4-9ABEED3E5978}
static const GUID NV_ENC_H264_PROFILE_PROGRESSIVE_HIGH_GUID =
{ 0xb405afac , 0xf32b , 0x417b , { 0x89 , 0xc4 , 0x9a , 0xbe , 0xed , 0x3e , 0x59 , 0x78 } } ;
// {AEC1BD87-E85B-48f2-84C3-98BCA6285072}
static const GUID NV_ENC_H264_PROFILE_CONSTRAINED_HIGH_GUID =
{ 0xaec1bd87 , 0xe85b , 0x48f2 , { 0x84 , 0xc3 , 0x98 , 0xbc , 0xa6 , 0x28 , 0x50 , 0x72 } } ;
// {B514C39A-B55B-40fa-878F-F1253B4DFDEC}
static const GUID NV_ENC_HEVC_PROFILE_MAIN_GUID =
{ 0xb514c39a , 0xb55b , 0x40fa , { 0x87 , 0x8f , 0xf1 , 0x25 , 0x3b , 0x4d , 0xfd , 0xec } } ;
// {fa4d2b6c-3a5b-411a-8018-0a3f5e3c9be5}
static const GUID NV_ENC_HEVC_PROFILE_MAIN10_GUID =
{ 0xfa4d2b6c , 0x3a5b , 0x411a , { 0x80 , 0x18 , 0x0a , 0x3f , 0x5e , 0x3c , 0x9b , 0xe5 } } ;
// For HEVC Main 444 8 bit and HEVC Main 444 10 bit profiles only
// {51ec32b5-1b4c-453c-9cbd-b616bd621341}
static const GUID NV_ENC_HEVC_PROFILE_FREXT_GUID =
{ 0x51ec32b5 , 0x1b4c , 0x453c , { 0x9c , 0xbd , 0xb6 , 0x16 , 0xbd , 0x62 , 0x13 , 0x41 } } ;
// =========================================================================================
// * Preset GUIDS supported by the NvEncodeAPI interface.
// =========================================================================================
// {B2DFB705-4EBD-4C49-9B5F-24A777D3E587}
static const GUID NV_ENC_PRESET_DEFAULT_GUID =
{ 0xb2dfb705 , 0x4ebd , 0x4c49 , { 0x9b , 0x5f , 0x24 , 0xa7 , 0x77 , 0xd3 , 0xe5 , 0x87 } } ;
// {60E4C59F-E846-4484-A56D-CD45BE9FDDF6}
static const GUID NV_ENC_PRESET_HP_GUID =
{ 0x60e4c59f , 0xe846 , 0x4484 , { 0xa5 , 0x6d , 0xcd , 0x45 , 0xbe , 0x9f , 0xdd , 0xf6 } } ;
// {34DBA71D-A77B-4B8F-9C3E-B6D5DA24C012}
static const GUID NV_ENC_PRESET_HQ_GUID =
{ 0x34dba71d , 0xa77b , 0x4b8f , { 0x9c , 0x3e , 0xb6 , 0xd5 , 0xda , 0x24 , 0xc0 , 0x12 } } ;
// {82E3E450-BDBB-4e40-989C-82A90DF9EF32}
static const GUID NV_ENC_PRESET_BD_GUID =
{ 0x82e3e450 , 0xbdbb , 0x4e40 , { 0x98 , 0x9c , 0x82 , 0xa9 , 0xd , 0xf9 , 0xef , 0x32 } } ;
// {49DF21C5-6DFA-4feb-9787-6ACC9EFFB726}
static const GUID NV_ENC_PRESET_LOW_LATENCY_DEFAULT_GUID =
{ 0x49df21c5 , 0x6dfa , 0x4feb , { 0x97 , 0x87 , 0x6a , 0xcc , 0x9e , 0xff , 0xb7 , 0x26 } } ;
// {C5F733B9-EA97-4cf9-BEC2-BF78A74FD105}
static const GUID NV_ENC_PRESET_LOW_LATENCY_HQ_GUID =
{ 0xc5f733b9 , 0xea97 , 0x4cf9 , { 0xbe , 0xc2 , 0xbf , 0x78 , 0xa7 , 0x4f , 0xd1 , 0x5 } } ;
// {67082A44-4BAD-48FA-98EA-93056D150A58}
static const GUID NV_ENC_PRESET_LOW_LATENCY_HP_GUID =
{ 0x67082a44 , 0x4bad , 0x48fa , { 0x98 , 0xea , 0x93 , 0x5 , 0x6d , 0x15 , 0xa , 0x58 } } ;
// {D5BFB716-C604-44e7-9BB8-DEA5510FC3AC}
static const GUID NV_ENC_PRESET_LOSSLESS_DEFAULT_GUID =
{ 0xd5bfb716 , 0xc604 , 0x44e7 , { 0x9b , 0xb8 , 0xde , 0xa5 , 0x51 , 0xf , 0xc3 , 0xac } } ;
// {149998E7-2364-411d-82EF-179888093409}
static const GUID NV_ENC_PRESET_LOSSLESS_HP_GUID =
{ 0x149998e7 , 0x2364 , 0x411d , { 0x82 , 0xef , 0x17 , 0x98 , 0x88 , 0x9 , 0x34 , 0x9 } } ;
/**
* \ addtogroup ENCODER_STRUCTURE NvEncodeAPI Data structures
* @ {
*/
/**
* Input frame encode modes
*/
typedef enum _NV_ENC_PARAMS_FRAME_FIELD_MODE
{
NV_ENC_PARAMS_FRAME_FIELD_MODE_FRAME = 0x01 , /**< Frame mode */
NV_ENC_PARAMS_FRAME_FIELD_MODE_FIELD = 0x02 , /**< Field mode */
NV_ENC_PARAMS_FRAME_FIELD_MODE_MBAFF = 0x03 /**< MB adaptive frame/field */
} NV_ENC_PARAMS_FRAME_FIELD_MODE ;
/**
* Rate Control Modes
*/
typedef enum _NV_ENC_PARAMS_RC_MODE
{
NV_ENC_PARAMS_RC_CONSTQP = 0x0 , /**< Constant QP mode */
NV_ENC_PARAMS_RC_VBR = 0x1 , /**< Variable bitrate mode */
NV_ENC_PARAMS_RC_CBR = 0x2 , /**< Constant bitrate mode */
NV_ENC_PARAMS_RC_CBR_LOWDELAY_HQ = 0x8 , /**< low-delay CBR, high quality */
NV_ENC_PARAMS_RC_CBR_HQ = 0x10 , /**< CBR, high quality (slower) */
NV_ENC_PARAMS_RC_VBR_HQ = 0x20 /**< VBR, high quality (slower) */
} NV_ENC_PARAMS_RC_MODE ;
/**
* Emphasis Levels
*/
typedef enum _NV_ENC_EMPHASIS_MAP_LEVEL
{
NV_ENC_EMPHASIS_MAP_LEVEL_0 = 0x0 , /**< Emphasis Map Level 0, for zero Delta QP value */
NV_ENC_EMPHASIS_MAP_LEVEL_1 = 0x1 , /**< Emphasis Map Level 1, for very low Delta QP value */
NV_ENC_EMPHASIS_MAP_LEVEL_2 = 0x2 , /**< Emphasis Map Level 2, for low Delta QP value */
NV_ENC_EMPHASIS_MAP_LEVEL_3 = 0x3 , /**< Emphasis Map Level 3, for medium Delta QP value */
NV_ENC_EMPHASIS_MAP_LEVEL_4 = 0x4 , /**< Emphasis Map Level 4, for high Delta QP value */
NV_ENC_EMPHASIS_MAP_LEVEL_5 = 0x5 /**< Emphasis Map Level 5, for very high Delta QP value */
} NV_ENC_EMPHASIS_MAP_LEVEL ;
/**
* QP MAP MODE
*/
typedef enum _NV_ENC_QP_MAP_MODE
{
NV_ENC_QP_MAP_DISABLED = 0x0 , /**< Value in NV_ENC_PIC_PARAMS::qpDeltaMap have no effect. */
NV_ENC_QP_MAP_EMPHASIS = 0x1 , /**< Value in NV_ENC_PIC_PARAMS::qpDeltaMap will be treated as Empasis level. Currently this is only supported for H264 */
NV_ENC_QP_MAP_DELTA = 0x2 , /**< Value in NV_ENC_PIC_PARAMS::qpDeltaMap will be treated as QP delta map. */
NV_ENC_QP_MAP = 0x3 , /**< Currently This is not supported. Value in NV_ENC_PIC_PARAMS::qpDeltaMap will be treated as QP value. */
} NV_ENC_QP_MAP_MODE ;
# define NV_ENC_PARAMS_RC_VBR_MINQP (NV_ENC_PARAMS_RC_MODE)0x4 /**< Deprecated */
# define NV_ENC_PARAMS_RC_2_PASS_QUALITY NV_ENC_PARAMS_RC_CBR_LOWDELAY_HQ /**< Deprecated */
# define NV_ENC_PARAMS_RC_2_PASS_FRAMESIZE_CAP NV_ENC_PARAMS_RC_CBR_HQ /**< Deprecated */
# define NV_ENC_PARAMS_RC_2_PASS_VBR NV_ENC_PARAMS_RC_VBR_HQ /**< Deprecated */
# define NV_ENC_PARAMS_RC_CBR2 NV_ENC_PARAMS_RC_CBR /**< Deprecated */
/**
* Input picture structure
*/
typedef enum _NV_ENC_PIC_STRUCT
{
NV_ENC_PIC_STRUCT_FRAME = 0x01 , /**< Progressive frame */
NV_ENC_PIC_STRUCT_FIELD_TOP_BOTTOM = 0x02 , /**< Field encoding top field first */
NV_ENC_PIC_STRUCT_FIELD_BOTTOM_TOP = 0x03 /**< Field encoding bottom field first */
} NV_ENC_PIC_STRUCT ;
/**
* Input picture type
*/
typedef enum _NV_ENC_PIC_TYPE
{
NV_ENC_PIC_TYPE_P = 0x0 , /**< Forward predicted */
NV_ENC_PIC_TYPE_B = 0x01 , /**< Bi-directionally predicted picture */
NV_ENC_PIC_TYPE_I = 0x02 , /**< Intra predicted picture */
NV_ENC_PIC_TYPE_IDR = 0x03 , /**< IDR picture */
NV_ENC_PIC_TYPE_BI = 0x04 , /**< Bi-directionally predicted with only Intra MBs */
NV_ENC_PIC_TYPE_SKIPPED = 0x05 , /**< Picture is skipped */
NV_ENC_PIC_TYPE_INTRA_REFRESH = 0x06 , /**< First picture in intra refresh cycle */
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NV_ENC_PIC_TYPE_NONREF_P = 0x07 , /**< Non reference P picture */
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NV_ENC_PIC_TYPE_UNKNOWN = 0xFF /**< Picture type unknown */
} NV_ENC_PIC_TYPE ;
/**
* Motion vector precisions
*/
typedef enum _NV_ENC_MV_PRECISION
{
NV_ENC_MV_PRECISION_DEFAULT = 0x0 , /**<Driver selects QuarterPel motion vector precision by default*/
NV_ENC_MV_PRECISION_FULL_PEL = 0x01 , /**< FullPel motion vector precision */
NV_ENC_MV_PRECISION_HALF_PEL = 0x02 , /**< HalfPel motion vector precision */
NV_ENC_MV_PRECISION_QUARTER_PEL = 0x03 /**< QuarterPel motion vector precision */
} NV_ENC_MV_PRECISION ;
/**
* Input buffer formats
*/
typedef enum _NV_ENC_BUFFER_FORMAT
{
NV_ENC_BUFFER_FORMAT_UNDEFINED = 0x00000000 , /**< Undefined buffer format */
NV_ENC_BUFFER_FORMAT_NV12 = 0x00000001 , /**< Semi-Planar YUV [Y plane followed by interleaved UV plane] */
NV_ENC_BUFFER_FORMAT_YV12 = 0x00000010 , /**< Planar YUV [Y plane followed by V and U planes] */
NV_ENC_BUFFER_FORMAT_IYUV = 0x00000100 , /**< Planar YUV [Y plane followed by U and V planes] */
NV_ENC_BUFFER_FORMAT_YUV444 = 0x00001000 , /**< Planar YUV [Y plane followed by U and V planes] */
NV_ENC_BUFFER_FORMAT_YUV420_10BIT = 0x00010000 , /**< 10 bit Semi-Planar YUV [Y plane followed by interleaved UV plane]. Each pixel of size 2 bytes. Most Significant 10 bits contain pixel data. */
NV_ENC_BUFFER_FORMAT_YUV444_10BIT = 0x00100000 , /**< 10 bit Planar YUV444 [Y plane followed by U and V planes]. Each pixel of size 2 bytes. Most Significant 10 bits contain pixel data. */
NV_ENC_BUFFER_FORMAT_ARGB = 0x01000000 , /**< 8 bit Packed A8R8G8B8. This is a word-ordered format
where a pixel is represented by a 32 - bit word with B
in the lowest 8 bits , G in the next 8 bits , R in the
8 bits after that and A in the highest 8 bits . */
NV_ENC_BUFFER_FORMAT_ARGB10 = 0x02000000 , /**< 10 bit Packed A2R10G10B10. This is a word-ordered format
where a pixel is represented by a 32 - bit word with B
in the lowest 10 bits , G in the next 10 bits , R in the
10 bits after that and A in the highest 2 bits . */
NV_ENC_BUFFER_FORMAT_AYUV = 0x04000000 , /**< 8 bit Packed A8Y8U8V8. This is a word-ordered format
where a pixel is represented by a 32 - bit word with V
in the lowest 8 bits , U in the next 8 bits , Y in the
8 bits after that and A in the highest 8 bits . */
NV_ENC_BUFFER_FORMAT_ABGR = 0x10000000 , /**< 8 bit Packed A8B8G8R8. This is a word-ordered format
where a pixel is represented by a 32 - bit word with R
in the lowest 8 bits , G in the next 8 bits , B in the
8 bits after that and A in the highest 8 bits . */
NV_ENC_BUFFER_FORMAT_ABGR10 = 0x20000000 , /**< 10 bit Packed A2B10G10R10. This is a word-ordered format
where a pixel is represented by a 32 - bit word with R
in the lowest 10 bits , G in the next 10 bits , B in the
10 bits after that and A in the highest 2 bits . */
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NV_ENC_BUFFER_FORMAT_U8 = 0x40000000 , /**< Buffer format representing one-dimensional buffer.
This format should be used only when registering the
resource as output buffer , which will be used to write
the encoded bit stream or H .264 ME only mode output . */
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} NV_ENC_BUFFER_FORMAT ;
# define NV_ENC_BUFFER_FORMAT_NV12_PL NV_ENC_BUFFER_FORMAT_NV12
# define NV_ENC_BUFFER_FORMAT_YV12_PL NV_ENC_BUFFER_FORMAT_YV12
# define NV_ENC_BUFFER_FORMAT_IYUV_PL NV_ENC_BUFFER_FORMAT_IYUV
# define NV_ENC_BUFFER_FORMAT_YUV444_PL NV_ENC_BUFFER_FORMAT_YUV444
/**
* Encoding levels
*/
typedef enum _NV_ENC_LEVEL
{
NV_ENC_LEVEL_AUTOSELECT = 0 ,
NV_ENC_LEVEL_H264_1 = 10 ,
NV_ENC_LEVEL_H264_1b = 9 ,
NV_ENC_LEVEL_H264_11 = 11 ,
NV_ENC_LEVEL_H264_12 = 12 ,
NV_ENC_LEVEL_H264_13 = 13 ,
NV_ENC_LEVEL_H264_2 = 20 ,
NV_ENC_LEVEL_H264_21 = 21 ,
NV_ENC_LEVEL_H264_22 = 22 ,
NV_ENC_LEVEL_H264_3 = 30 ,
NV_ENC_LEVEL_H264_31 = 31 ,
NV_ENC_LEVEL_H264_32 = 32 ,
NV_ENC_LEVEL_H264_4 = 40 ,
NV_ENC_LEVEL_H264_41 = 41 ,
NV_ENC_LEVEL_H264_42 = 42 ,
NV_ENC_LEVEL_H264_5 = 50 ,
NV_ENC_LEVEL_H264_51 = 51 ,
NV_ENC_LEVEL_H264_52 = 52 ,
NV_ENC_LEVEL_HEVC_1 = 30 ,
NV_ENC_LEVEL_HEVC_2 = 60 ,
NV_ENC_LEVEL_HEVC_21 = 63 ,
NV_ENC_LEVEL_HEVC_3 = 90 ,
NV_ENC_LEVEL_HEVC_31 = 93 ,
NV_ENC_LEVEL_HEVC_4 = 120 ,
NV_ENC_LEVEL_HEVC_41 = 123 ,
NV_ENC_LEVEL_HEVC_5 = 150 ,
NV_ENC_LEVEL_HEVC_51 = 153 ,
NV_ENC_LEVEL_HEVC_52 = 156 ,
NV_ENC_LEVEL_HEVC_6 = 180 ,
NV_ENC_LEVEL_HEVC_61 = 183 ,
NV_ENC_LEVEL_HEVC_62 = 186 ,
NV_ENC_TIER_HEVC_MAIN = 0 ,
NV_ENC_TIER_HEVC_HIGH = 1
} NV_ENC_LEVEL ;
/**
* Error Codes
*/
typedef enum _NVENCSTATUS
{
/**
* This indicates that API call returned with no errors .
*/
NV_ENC_SUCCESS ,
/**
* This indicates that no encode capable devices were detected .
*/
NV_ENC_ERR_NO_ENCODE_DEVICE ,
/**
* This indicates that devices pass by the client is not supported .
*/
NV_ENC_ERR_UNSUPPORTED_DEVICE ,
/**
* This indicates that the encoder device supplied by the client is not
* valid .
*/
NV_ENC_ERR_INVALID_ENCODERDEVICE ,
/**
* This indicates that device passed to the API call is invalid .
*/
NV_ENC_ERR_INVALID_DEVICE ,
/**
* This indicates that device passed to the API call is no longer available and
* needs to be reinitialized . The clients need to destroy the current encoder
* session by freeing the allocated input output buffers and destroying the device
* and create a new encoding session .
*/
NV_ENC_ERR_DEVICE_NOT_EXIST ,
/**
* This indicates that one or more of the pointers passed to the API call
* is invalid .
*/
NV_ENC_ERR_INVALID_PTR ,
/**
* This indicates that completion event passed in : : NvEncEncodePicture ( ) call
* is invalid .
*/
NV_ENC_ERR_INVALID_EVENT ,
/**
* This indicates that one or more of the parameter passed to the API call
* is invalid .
*/
NV_ENC_ERR_INVALID_PARAM ,
/**
* This indicates that an API call was made in wrong sequence / order .
*/
NV_ENC_ERR_INVALID_CALL ,
/**
* This indicates that the API call failed because it was unable to allocate
* enough memory to perform the requested operation .
*/
NV_ENC_ERR_OUT_OF_MEMORY ,
/**
* This indicates that the encoder has not been initialized with
* : : NvEncInitializeEncoder ( ) or that initialization has failed .
* The client cannot allocate input or output buffers or do any encoding
* related operation before successfully initializing the encoder .
*/
NV_ENC_ERR_ENCODER_NOT_INITIALIZED ,
/**
* This indicates that an unsupported parameter was passed by the client .
*/
NV_ENC_ERR_UNSUPPORTED_PARAM ,
/**
* This indicates that the : : NvEncLockBitstream ( ) failed to lock the output
* buffer . This happens when the client makes a non blocking lock call to
* access the output bitstream by passing NV_ENC_LOCK_BITSTREAM : : doNotWait flag .
* This is not a fatal error and client should retry the same operation after
* few milliseconds .
*/
NV_ENC_ERR_LOCK_BUSY ,
/**
* This indicates that the size of the user buffer passed by the client is
* insufficient for the requested operation .
*/
NV_ENC_ERR_NOT_ENOUGH_BUFFER ,
/**
* This indicates that an invalid struct version was used by the client .
*/
NV_ENC_ERR_INVALID_VERSION ,
/**
* This indicates that : : NvEncMapInputResource ( ) API failed to map the client
* provided input resource .
*/
NV_ENC_ERR_MAP_FAILED ,
/**
* This indicates encode driver requires more input buffers to produce an output
* bitstream . If this error is returned from : : NvEncEncodePicture ( ) API , this
* is not a fatal error . If the client is encoding with B frames then ,
* : : NvEncEncodePicture ( ) API might be buffering the input frame for re - ordering .
*
* A client operating in synchronous mode cannot call : : NvEncLockBitstream ( )
* API on the output bitstream buffer if : : NvEncEncodePicture ( ) returned the
* : : NV_ENC_ERR_NEED_MORE_INPUT error code .
* The client must continue providing input frames until encode driver returns
* : : NV_ENC_SUCCESS . After receiving : : NV_ENC_SUCCESS status the client can call
* : : NvEncLockBitstream ( ) API on the output buffers in the same order in which
* it has called : : NvEncEncodePicture ( ) .
*/
NV_ENC_ERR_NEED_MORE_INPUT ,
/**
* This indicates that the HW encoder is busy encoding and is unable to encode
* the input . The client should call : : NvEncEncodePicture ( ) again after few
* milliseconds .
*/
NV_ENC_ERR_ENCODER_BUSY ,
/**
* This indicates that the completion event passed in : : NvEncEncodePicture ( )
* API has not been registered with encoder driver using : : NvEncRegisterAsyncEvent ( ) .
*/
NV_ENC_ERR_EVENT_NOT_REGISTERD ,
/**
* This indicates that an unknown internal error has occurred .
*/
NV_ENC_ERR_GENERIC ,
/**
* This indicates that the client is attempting to use a feature
* that is not available for the license type for the current system .
*/
NV_ENC_ERR_INCOMPATIBLE_CLIENT_KEY ,
/**
* This indicates that the client is attempting to use a feature
* that is not implemented for the current version .
*/
NV_ENC_ERR_UNIMPLEMENTED ,
/**
* This indicates that the : : NvEncRegisterResource API failed to register the resource .
*/
NV_ENC_ERR_RESOURCE_REGISTER_FAILED ,
/**
* This indicates that the client is attempting to unregister a resource
* that has not been successfully registered .
*/
NV_ENC_ERR_RESOURCE_NOT_REGISTERED ,
/**
* This indicates that the client is attempting to unmap a resource
* that has not been successfully mapped .
*/
NV_ENC_ERR_RESOURCE_NOT_MAPPED ,
} NVENCSTATUS ;
/**
* Encode Picture encode flags .
*/
typedef enum _NV_ENC_PIC_FLAGS
{
NV_ENC_PIC_FLAG_FORCEINTRA = 0x1 , /**< Encode the current picture as an Intra picture */
NV_ENC_PIC_FLAG_FORCEIDR = 0x2 , /**< Encode the current picture as an IDR picture.
This flag is only valid when Picture type decision is taken by the Encoder
[ _NV_ENC_INITIALIZE_PARAMS : : enablePTD = = 1 ] . */
NV_ENC_PIC_FLAG_OUTPUT_SPSPPS = 0x4 , /**< Write the sequence and picture header in encoded bitstream of the current picture */
NV_ENC_PIC_FLAG_EOS = 0x8 , /**< Indicates end of the input stream */
} NV_ENC_PIC_FLAGS ;
/**
* Memory heap to allocate input and output buffers .
*/
typedef enum _NV_ENC_MEMORY_HEAP
{
NV_ENC_MEMORY_HEAP_AUTOSELECT = 0 , /**< Memory heap to be decided by the encoder driver based on the usage */
NV_ENC_MEMORY_HEAP_VID = 1 , /**< Memory heap is in local video memory */
NV_ENC_MEMORY_HEAP_SYSMEM_CACHED = 2 , /**< Memory heap is in cached system memory */
NV_ENC_MEMORY_HEAP_SYSMEM_UNCACHED = 3 /**< Memory heap is in uncached system memory */
} NV_ENC_MEMORY_HEAP ;
/**
* B - frame used as reference modes
*/
typedef enum _NV_ENC_BFRAME_REF_MODE
{
NV_ENC_BFRAME_REF_MODE_DISABLED = 0x0 , /**< B frame is not used for reference */
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NV_ENC_BFRAME_REF_MODE_EACH = 0x1 , /**< Each B-frame will be used for reference. currently not supported for H.264 */
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NV_ENC_BFRAME_REF_MODE_MIDDLE = 0x2 , /**< Only(Number of B-frame)/2 th B-frame will be used for reference */
} NV_ENC_BFRAME_REF_MODE ;
/**
* H .264 entropy coding modes .
*/
typedef enum _NV_ENC_H264_ENTROPY_CODING_MODE
{
NV_ENC_H264_ENTROPY_CODING_MODE_AUTOSELECT = 0x0 , /**< Entropy coding mode is auto selected by the encoder driver */
NV_ENC_H264_ENTROPY_CODING_MODE_CABAC = 0x1 , /**< Entropy coding mode is CABAC */
NV_ENC_H264_ENTROPY_CODING_MODE_CAVLC = 0x2 /**< Entropy coding mode is CAVLC */
} NV_ENC_H264_ENTROPY_CODING_MODE ;
/**
* H .264 specific Bdirect modes
*/
typedef enum _NV_ENC_H264_BDIRECT_MODE
{
NV_ENC_H264_BDIRECT_MODE_AUTOSELECT = 0x0 , /**< BDirect mode is auto selected by the encoder driver */
NV_ENC_H264_BDIRECT_MODE_DISABLE = 0x1 , /**< Disable BDirect mode */
NV_ENC_H264_BDIRECT_MODE_TEMPORAL = 0x2 , /**< Temporal BDirect mode */
NV_ENC_H264_BDIRECT_MODE_SPATIAL = 0x3 /**< Spatial BDirect mode */
} NV_ENC_H264_BDIRECT_MODE ;
/**
* H .264 specific FMO usage
*/
typedef enum _NV_ENC_H264_FMO_MODE
{
NV_ENC_H264_FMO_AUTOSELECT = 0x0 , /**< FMO usage is auto selected by the encoder driver */
NV_ENC_H264_FMO_ENABLE = 0x1 , /**< Enable FMO */
NV_ENC_H264_FMO_DISABLE = 0x2 , /**< Disble FMO */
} NV_ENC_H264_FMO_MODE ;
/**
* H .264 specific Adaptive Transform modes
*/
typedef enum _NV_ENC_H264_ADAPTIVE_TRANSFORM_MODE
{
NV_ENC_H264_ADAPTIVE_TRANSFORM_AUTOSELECT = 0x0 , /**< Adaptive Transform 8x8 mode is auto selected by the encoder driver*/
NV_ENC_H264_ADAPTIVE_TRANSFORM_DISABLE = 0x1 , /**< Adaptive Transform 8x8 mode disabled */
NV_ENC_H264_ADAPTIVE_TRANSFORM_ENABLE = 0x2 , /**< Adaptive Transform 8x8 mode should be used */
} NV_ENC_H264_ADAPTIVE_TRANSFORM_MODE ;
/**
* Stereo frame packing modes .
*/
typedef enum _NV_ENC_STEREO_PACKING_MODE
{
NV_ENC_STEREO_PACKING_MODE_NONE = 0x0 , /**< No Stereo packing required */
NV_ENC_STEREO_PACKING_MODE_CHECKERBOARD = 0x1 , /**< Checkerboard mode for packing stereo frames */
NV_ENC_STEREO_PACKING_MODE_COLINTERLEAVE = 0x2 , /**< Column Interleave mode for packing stereo frames */
NV_ENC_STEREO_PACKING_MODE_ROWINTERLEAVE = 0x3 , /**< Row Interleave mode for packing stereo frames */
NV_ENC_STEREO_PACKING_MODE_SIDEBYSIDE = 0x4 , /**< Side-by-side mode for packing stereo frames */
NV_ENC_STEREO_PACKING_MODE_TOPBOTTOM = 0x5 , /**< Top-Bottom mode for packing stereo frames */
NV_ENC_STEREO_PACKING_MODE_FRAMESEQ = 0x6 /**< Frame Sequential mode for packing stereo frames */
} NV_ENC_STEREO_PACKING_MODE ;
/**
* Input Resource type
*/
typedef enum _NV_ENC_INPUT_RESOURCE_TYPE
{
NV_ENC_INPUT_RESOURCE_TYPE_DIRECTX = 0x0 , /**< input resource type is a directx9 surface*/
NV_ENC_INPUT_RESOURCE_TYPE_CUDADEVICEPTR = 0x1 , /**< input resource type is a cuda device pointer surface*/
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NV_ENC_INPUT_RESOURCE_TYPE_CUDAARRAY = 0x2 , /**< input resource type is a cuda array surface.
This array must be a 2 D array and the CUDA_ARRAY3D_SURFACE_LDST
flag must have been specified when creating it . */
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NV_ENC_INPUT_RESOURCE_TYPE_OPENGL_TEX = 0x3 /**< input resource type is an OpenGL texture */
} NV_ENC_INPUT_RESOURCE_TYPE ;
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/**
* Buffer usage
*/
typedef enum _NV_ENC_BUFFER_USAGE
{
NV_ENC_INPUT_IMAGE = 0x0 , /**< Registered surface will be used for input image */
NV_ENC_OUTPUT_MOTION_VECTOR = 0x1 , /**< Registered surface will be used for output of H.264 ME only mode.
This buffer usage type is not supported for HEVC ME only mode . */
NV_ENC_OUTPUT_BITSTREAM = 0x2 /**< Registered surface will be used for output bitstream in encoding */
} NV_ENC_BUFFER_USAGE ;
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/**
* Encoder Device type
*/
typedef enum _NV_ENC_DEVICE_TYPE
{
NV_ENC_DEVICE_TYPE_DIRECTX = 0x0 , /**< encode device type is a directx9 device */
NV_ENC_DEVICE_TYPE_CUDA = 0x1 , /**< encode device type is a cuda device */
NV_ENC_DEVICE_TYPE_OPENGL = 0x2 /**< encode device type is an OpenGL device.
Use of this device type is supported only on Linux */
} NV_ENC_DEVICE_TYPE ;
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/**
* Number of reference frames
*/
typedef enum _NV_ENC_NUM_REF_FRAMES
{
NV_ENC_NUM_REF_FRAMES_AUTOSELECT = 0x0 , /**< Number of reference frames is auto selected by the encoder driver */
NV_ENC_NUM_REF_FRAMES_1 = 0x1 , /**< Number of reference frames equal to 1 */
NV_ENC_NUM_REF_FRAMES_2 = 0x2 , /**< Number of reference frames equal to 2 */
NV_ENC_NUM_REF_FRAMES_3 = 0x3 , /**< Number of reference frames equal to 3 */
NV_ENC_NUM_REF_FRAMES_4 = 0x4 , /**< Number of reference frames equal to 4 */
NV_ENC_NUM_REF_FRAMES_5 = 0x5 , /**< Number of reference frames equal to 5 */
NV_ENC_NUM_REF_FRAMES_6 = 0x6 , /**< Number of reference frames equal to 6 */
NV_ENC_NUM_REF_FRAMES_7 = 0x7 /**< Number of reference frames equal to 7 */
} NV_ENC_NUM_REF_FRAMES ;
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/**
* Encoder capabilities enumeration .
*/
typedef enum _NV_ENC_CAPS
{
/**
* Maximum number of B - Frames supported .
*/
NV_ENC_CAPS_NUM_MAX_BFRAMES ,
/**
* Rate control modes supported .
* \ n The API return value is a bitmask of the values in NV_ENC_PARAMS_RC_MODE .
*/
NV_ENC_CAPS_SUPPORTED_RATECONTROL_MODES ,
/**
* Indicates HW support for field mode encoding .
* \ n 0 : Interlaced mode encoding is not supported .
* \ n 1 : Interlaced field mode encoding is supported .
* \ n 2 : Interlaced frame encoding and field mode encoding are both supported .
*/
NV_ENC_CAPS_SUPPORT_FIELD_ENCODING ,
/**
* Indicates HW support for monochrome mode encoding .
* \ n 0 : Monochrome mode not supported .
* \ n 1 : Monochrome mode supported .
*/
NV_ENC_CAPS_SUPPORT_MONOCHROME ,
/**
* Indicates HW support for FMO .
* \ n 0 : FMO not supported .
* \ n 1 : FMO supported .
*/
NV_ENC_CAPS_SUPPORT_FMO ,
/**
* Indicates HW capability for Quarter pel motion estimation .
* \ n 0 : QuarterPel Motion Estimation not supported .
* \ n 1 : QuarterPel Motion Estimation supported .
*/
NV_ENC_CAPS_SUPPORT_QPELMV ,
/**
* H .264 specific . Indicates HW support for BDirect modes .
* \ n 0 : BDirect mode encoding not supported .
* \ n 1 : BDirect mode encoding supported .
*/
NV_ENC_CAPS_SUPPORT_BDIRECT_MODE ,
/**
* H264 specific . Indicates HW support for CABAC entropy coding mode .
* \ n 0 : CABAC entropy coding not supported .
* \ n 1 : CABAC entropy coding supported .
*/
NV_ENC_CAPS_SUPPORT_CABAC ,
/**
* Indicates HW support for Adaptive Transform .
* \ n 0 : Adaptive Transform not supported .
* \ n 1 : Adaptive Transform supported .
*/
NV_ENC_CAPS_SUPPORT_ADAPTIVE_TRANSFORM ,
/**
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* Indicates HW support for Multi View Coding .
* \ n 0 : Multi View Coding not supported .
* \ n 1 : Multi View Coding supported .
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*/
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NV_ENC_CAPS_SUPPORT_STEREO_MVC ,
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/**
* Indicates HW support for encoding Temporal layers .
* \ n 0 : Encoding Temporal layers not supported .
* \ n 1 : Encoding Temporal layers supported .
*/
NV_ENC_CAPS_NUM_MAX_TEMPORAL_LAYERS ,
/**
* Indicates HW support for Hierarchical P frames .
* \ n 0 : Hierarchical P frames not supported .
* \ n 1 : Hierarchical P frames supported .
*/
NV_ENC_CAPS_SUPPORT_HIERARCHICAL_PFRAMES ,
/**
* Indicates HW support for Hierarchical B frames .
* \ n 0 : Hierarchical B frames not supported .
* \ n 1 : Hierarchical B frames supported .
*/
NV_ENC_CAPS_SUPPORT_HIERARCHICAL_BFRAMES ,
/**
* Maximum Encoding level supported ( See : : NV_ENC_LEVEL for details ) .
*/
NV_ENC_CAPS_LEVEL_MAX ,
/**
* Minimum Encoding level supported ( See : : NV_ENC_LEVEL for details ) .
*/
NV_ENC_CAPS_LEVEL_MIN ,
/**
* Indicates HW support for separate colour plane encoding .
* \ n 0 : Separate colour plane encoding not supported .
* \ n 1 : Separate colour plane encoding supported .
*/
NV_ENC_CAPS_SEPARATE_COLOUR_PLANE ,
/**
* Maximum output width supported .
*/
NV_ENC_CAPS_WIDTH_MAX ,
/**
* Maximum output height supported .
*/
NV_ENC_CAPS_HEIGHT_MAX ,
/**
* Indicates Temporal Scalability Support .
* \ n 0 : Temporal SVC encoding not supported .
* \ n 1 : Temporal SVC encoding supported .
*/
NV_ENC_CAPS_SUPPORT_TEMPORAL_SVC ,
/**
* Indicates Dynamic Encode Resolution Change Support .
* Support added from NvEncodeAPI version 2.0 .
* \ n 0 : Dynamic Encode Resolution Change not supported .
* \ n 1 : Dynamic Encode Resolution Change supported .
*/
NV_ENC_CAPS_SUPPORT_DYN_RES_CHANGE ,
/**
* Indicates Dynamic Encode Bitrate Change Support .
* Support added from NvEncodeAPI version 2.0 .
* \ n 0 : Dynamic Encode bitrate change not supported .
* \ n 1 : Dynamic Encode bitrate change supported .
*/
NV_ENC_CAPS_SUPPORT_DYN_BITRATE_CHANGE ,
/**
* Indicates Forcing Constant QP On The Fly Support .
* Support added from NvEncodeAPI version 2.0 .
* \ n 0 : Forcing constant QP on the fly not supported .
* \ n 1 : Forcing constant QP on the fly supported .
*/
NV_ENC_CAPS_SUPPORT_DYN_FORCE_CONSTQP ,
/**
* Indicates Dynamic rate control mode Change Support .
* \ n 0 : Dynamic rate control mode change not supported .
* \ n 1 : Dynamic rate control mode change supported .
*/
NV_ENC_CAPS_SUPPORT_DYN_RCMODE_CHANGE ,
/**
* Indicates Subframe readback support for slice - based encoding .
* \ n 0 : Subframe readback not supported .
* \ n 1 : Subframe readback supported .
*/
NV_ENC_CAPS_SUPPORT_SUBFRAME_READBACK ,
/**
* Indicates Constrained Encoding mode support .
* Support added from NvEncodeAPI version 2.0 .
* \ n 0 : Constrained encoding mode not supported .
* \ n 1 : Constarined encoding mode supported .
* If this mode is supported client can enable this during initialisation .
* Client can then force a picture to be coded as constrained picture where
* each slice in a constrained picture will have constrained_intra_pred_flag set to 1
* and disable_deblocking_filter_idc will be set to 2 and prediction vectors for inter
* macroblocks in each slice will be restricted to the slice region .
*/
NV_ENC_CAPS_SUPPORT_CONSTRAINED_ENCODING ,
/**
* Indicates Intra Refresh Mode Support .
* Support added from NvEncodeAPI version 2.0 .
* \ n 0 : Intra Refresh Mode not supported .
* \ n 1 : Intra Refresh Mode supported .
*/
NV_ENC_CAPS_SUPPORT_INTRA_REFRESH ,
/**
* Indicates Custom VBV Bufer Size support . It can be used for capping frame size .
* Support added from NvEncodeAPI version 2.0 .
* \ n 0 : Custom VBV buffer size specification from client , not supported .
* \ n 1 : Custom VBV buffer size specification from client , supported .
*/
NV_ENC_CAPS_SUPPORT_CUSTOM_VBV_BUF_SIZE ,
/**
* Indicates Dynamic Slice Mode Support .
* Support added from NvEncodeAPI version 2.0 .
* \ n 0 : Dynamic Slice Mode not supported .
* \ n 1 : Dynamic Slice Mode supported .
*/
NV_ENC_CAPS_SUPPORT_DYNAMIC_SLICE_MODE ,
/**
* Indicates Reference Picture Invalidation Support .
* Support added from NvEncodeAPI version 2.0 .
* \ n 0 : Reference Picture Invalidation not supported .
* \ n 1 : Reference Picture Invalidation supported .
*/
NV_ENC_CAPS_SUPPORT_REF_PIC_INVALIDATION ,
/**
* Indicates support for PreProcessing .
* The API return value is a bitmask of the values defined in : : NV_ENC_PREPROC_FLAGS
*/
NV_ENC_CAPS_PREPROC_SUPPORT ,
/**
* Indicates support Async mode .
* \ n 0 : Async Encode mode not supported .
* \ n 1 : Async Encode mode supported .
*/
NV_ENC_CAPS_ASYNC_ENCODE_SUPPORT ,
/**
* Maximum MBs per frame supported .
*/
NV_ENC_CAPS_MB_NUM_MAX ,
/**
* Maximum aggregate throughput in MBs per sec .
*/
NV_ENC_CAPS_MB_PER_SEC_MAX ,
/**
* Indicates HW support for YUV444 mode encoding .
* \ n 0 : YUV444 mode encoding not supported .
* \ n 1 : YUV444 mode encoding supported .
*/
NV_ENC_CAPS_SUPPORT_YUV444_ENCODE ,
/**
* Indicates HW support for lossless encoding .
* \ n 0 : lossless encoding not supported .
* \ n 1 : lossless encoding supported .
*/
NV_ENC_CAPS_SUPPORT_LOSSLESS_ENCODE ,
/**
* Indicates HW support for Sample Adaptive Offset .
* \ n 0 : SAO not supported .
* \ n 1 : SAO encoding supported .
*/
NV_ENC_CAPS_SUPPORT_SAO ,
/**
* Indicates HW support for MEOnly Mode .
* \ n 0 : MEOnly Mode not supported .
* \ n 1 : MEOnly Mode supported for I and P frames .
* \ n 2 : MEOnly Mode supported for I , P and B frames .
*/
NV_ENC_CAPS_SUPPORT_MEONLY_MODE ,
/**
* Indicates HW support for lookahead encoding ( enableLookahead = 1 ) .
* \ n 0 : Lookahead not supported .
* \ n 1 : Lookahead supported .
*/
NV_ENC_CAPS_SUPPORT_LOOKAHEAD ,
/**
* Indicates HW support for temporal AQ encoding ( enableTemporalAQ = 1 ) .
* \ n 0 : Temporal AQ not supported .
* \ n 1 : Temporal AQ supported .
*/
NV_ENC_CAPS_SUPPORT_TEMPORAL_AQ ,
/**
* Indicates HW support for 10 bit encoding .
* \ n 0 : 10 bit encoding not supported .
* \ n 1 : 10 bit encoding supported .
*/
NV_ENC_CAPS_SUPPORT_10BIT_ENCODE ,
/**
* Maximum number of Long Term Reference frames supported
*/
NV_ENC_CAPS_NUM_MAX_LTR_FRAMES ,
/**
* Indicates HW support for Weighted Predicition .
* \ n 0 : Weighted Predicition not supported .
* \ n 1 : Weighted Predicition supported .
*/
NV_ENC_CAPS_SUPPORT_WEIGHTED_PREDICTION ,
/**
* On managed ( vGPU ) platforms ( Windows only ) , this API , in conjunction with other GRID Management APIs , can be used
* to estimate the residual capacity of the hardware encoder on the GPU as a percentage of the total available encoder capacity .
* This API can be called at any time ; i . e . during the encode session or before opening the encode session .
* If the available encoder capacity is returned as zero , applications may choose to switch to software encoding
* and continue to call this API ( e . g . polling once per second ) until capacity becomes available .
*
* On baremetal ( non - virtualized GPU ) and linux platforms , this API always returns 100.
*/
NV_ENC_CAPS_DYNAMIC_QUERY_ENCODER_CAPACITY ,
/**
* Indicates B as refererence support .
* \ n 0 : B as reference is not supported .
* \ n 1 : each B - Frame as reference is supported .
* \ n 2 : only Middle B - frame as reference is supported .
*/
NV_ENC_CAPS_SUPPORT_BFRAME_REF_MODE ,
/**
* Indicates HW support for Emphasis Level Map based delta QP computation .
* \ n 0 : Emphasis Level Map based delta QP not supported .
* \ n 1 : Emphasis Level Map based delta QP is supported .
*/
NV_ENC_CAPS_SUPPORT_EMPHASIS_LEVEL_MAP ,
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/**
* Minimum input width supported .
*/
NV_ENC_CAPS_WIDTH_MIN ,
/**
* Minimum input height supported .
*/
NV_ENC_CAPS_HEIGHT_MIN ,
/**
* Indicates HW support for multiple reference frames .
*/
NV_ENC_CAPS_SUPPORT_MULTIPLE_REF_FRAMES ,
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/**
* Reserved - Not to be used by clients .
*/
NV_ENC_CAPS_EXPOSED_COUNT
} NV_ENC_CAPS ;
/**
* HEVC CU SIZE
*/
typedef enum _NV_ENC_HEVC_CUSIZE
{
NV_ENC_HEVC_CUSIZE_AUTOSELECT = 0 ,
NV_ENC_HEVC_CUSIZE_8x8 = 1 ,
NV_ENC_HEVC_CUSIZE_16x16 = 2 ,
NV_ENC_HEVC_CUSIZE_32x32 = 3 ,
NV_ENC_HEVC_CUSIZE_64x64 = 4 ,
} NV_ENC_HEVC_CUSIZE ;
/**
* Input struct for querying Encoding capabilities .
*/
typedef struct _NV_ENC_CAPS_PARAM
{
uint32_t version ; /**< [in]: Struct version. Must be set to ::NV_ENC_CAPS_PARAM_VER */
NV_ENC_CAPS capsToQuery ; /**< [in]: Specifies the encode capability to be queried. Client should pass a member for ::NV_ENC_CAPS enum. */
uint32_t reserved [ 62 ] ; /**< [in]: Reserved and must be set to 0 */
} NV_ENC_CAPS_PARAM ;
/** NV_ENC_CAPS_PARAM struct version. */
# define NV_ENC_CAPS_PARAM_VER NVENCAPI_STRUCT_VERSION(1)
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/**
* Encoder Output parameters
*/
typedef struct _NV_ENC_ENCODE_OUT_PARAMS
{
uint32_t version ; /**< [out]: Struct version. */
uint32_t bitstreamSizeInBytes ; /**< [out]: Encoded bitstream size in bytes */
uint32_t reserved [ 62 ] ; /**< [out]: Reserved and must be set to 0 */
} NV_ENC_ENCODE_OUT_PARAMS ;
/** NV_ENC_ENCODE_OUT_PARAMS struct version. */
# define NV_ENC_ENCODE_OUT_PARAMS_VER NVENCAPI_STRUCT_VERSION(1)
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/**
* Creation parameters for input buffer .
*/
typedef struct _NV_ENC_CREATE_INPUT_BUFFER
{
uint32_t version ; /**< [in]: Struct version. Must be set to ::NV_ENC_CREATE_INPUT_BUFFER_VER */
uint32_t width ; /**< [in]: Input buffer width */
uint32_t height ; /**< [in]: Input buffer width */
NV_ENC_MEMORY_HEAP memoryHeap ; /**< [in]: Deprecated. Do not use */
NV_ENC_BUFFER_FORMAT bufferFmt ; /**< [in]: Input buffer format */
uint32_t reserved ; /**< [in]: Reserved and must be set to 0 */
NV_ENC_INPUT_PTR inputBuffer ; /**< [out]: Pointer to input buffer */
void * pSysMemBuffer ; /**< [in]: Pointer to existing sysmem buffer */
uint32_t reserved1 [ 57 ] ; /**< [in]: Reserved and must be set to 0 */
void * reserved2 [ 63 ] ; /**< [in]: Reserved and must be set to NULL */
} NV_ENC_CREATE_INPUT_BUFFER ;
/** NV_ENC_CREATE_INPUT_BUFFER struct version. */
# define NV_ENC_CREATE_INPUT_BUFFER_VER NVENCAPI_STRUCT_VERSION(1)
/**
* Creation parameters for output bitstream buffer .
*/
typedef struct _NV_ENC_CREATE_BITSTREAM_BUFFER
{
uint32_t version ; /**< [in]: Struct version. Must be set to ::NV_ENC_CREATE_BITSTREAM_BUFFER_VER */
uint32_t size ; /**< [in]: Deprecated. Do not use */
NV_ENC_MEMORY_HEAP memoryHeap ; /**< [in]: Deprecated. Do not use */
uint32_t reserved ; /**< [in]: Reserved and must be set to 0 */
NV_ENC_OUTPUT_PTR bitstreamBuffer ; /**< [out]: Pointer to the output bitstream buffer */
void * bitstreamBufferPtr ; /**< [out]: Reserved and should not be used */
uint32_t reserved1 [ 58 ] ; /**< [in]: Reserved and should be set to 0 */
void * reserved2 [ 64 ] ; /**< [in]: Reserved and should be set to NULL */
} NV_ENC_CREATE_BITSTREAM_BUFFER ;
/** NV_ENC_CREATE_BITSTREAM_BUFFER struct version. */
# define NV_ENC_CREATE_BITSTREAM_BUFFER_VER NVENCAPI_STRUCT_VERSION(1)
/**
* Structs needed for ME only mode .
*/
typedef struct _NV_ENC_MVECTOR
{
int16_t mvx ; /**< the x component of MV in qpel units */
int16_t mvy ; /**< the y component of MV in qpel units */
} NV_ENC_MVECTOR ;
/**
* Motion vector structure per macroblock for H264 motion estimation .
*/
typedef struct _NV_ENC_H264_MV_DATA
{
NV_ENC_MVECTOR mv [ 4 ] ; /**< up to 4 vectors for 8x8 partition */
uint8_t mbType ; /**< 0 (I), 1 (P), 2 (IPCM), 3 (B) */
uint8_t partitionType ; /**< Specifies the block partition type. 0:16x16, 1:8x8, 2:16x8, 3:8x16 */
uint16_t reserved ; /**< reserved padding for alignment */
uint32_t mbCost ;
} NV_ENC_H264_MV_DATA ;
/**
* Motion vector structure per CU for HEVC motion estimation .
*/
typedef struct _NV_ENC_HEVC_MV_DATA
{
NV_ENC_MVECTOR mv [ 4 ] ; /**< up to 4 vectors within a CU */
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uint8_t cuType ; /**< 0 (I), 1(P) */
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uint8_t cuSize ; /**< 0: 8x8, 1: 16x16, 2: 32x32, 3: 64x64 */
uint8_t partitionMode ; /**< The CU partition mode
0 ( 2 Nx2N ) , 1 ( 2 NxN ) , 2 ( Nx2N ) , 3 ( NxN ) ,
4 ( 2 NxnU ) , 5 ( 2 NxnD ) , 6 ( nLx2N ) , 7 ( nRx2N ) */
uint8_t lastCUInCTB ; /**< Marker to separate CUs in the current CTB from CUs in the next CTB */
} NV_ENC_HEVC_MV_DATA ;
/**
* Creation parameters for output motion vector buffer for ME only mode .
*/
typedef struct _NV_ENC_CREATE_MV_BUFFER
{
uint32_t version ; /**< [in]: Struct version. Must be set to NV_ENC_CREATE_MV_BUFFER_VER */
NV_ENC_OUTPUT_PTR mvBuffer ; /**< [out]: Pointer to the output motion vector buffer */
uint32_t reserved1 [ 255 ] ; /**< [in]: Reserved and should be set to 0 */
void * reserved2 [ 63 ] ; /**< [in]: Reserved and should be set to NULL */
} NV_ENC_CREATE_MV_BUFFER ;
/** NV_ENC_CREATE_MV_BUFFER struct version*/
# define NV_ENC_CREATE_MV_BUFFER_VER NVENCAPI_STRUCT_VERSION(1)
/**
* QP value for frames
*/
typedef struct _NV_ENC_QP
{
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uint32_t qpInterP ; /**< [in]: Specifies QP value for P-frame. Even though this field is uint32_t for legacy reasons, the client should treat this as a signed parameter(int32_t) for cases in which negative QP values are to be specified. */
uint32_t qpInterB ; /**< [in]: Specifies QP value for B-frame. Even though this field is uint32_t for legacy reasons, the client should treat this as a signed parameter(int32_t) for cases in which negative QP values are to be specified. */
uint32_t qpIntra ; /**< [in]: Specifies QP value for Intra Frame. Even though this field is uint32_t for legacy reasons, the client should treat this as a signed parameter(int32_t) for cases in which negative QP values are to be specified. */
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} NV_ENC_QP ;
/**
* Rate Control Configuration Paramters
*/
typedef struct _NV_ENC_RC_PARAMS
{
uint32_t version ;
NV_ENC_PARAMS_RC_MODE rateControlMode ; /**< [in]: Specifies the rate control mode. Check support for various rate control modes using ::NV_ENC_CAPS_SUPPORTED_RATECONTROL_MODES caps. */
NV_ENC_QP constQP ; /**< [in]: Specifies the initial QP to be used for encoding, these values would be used for all frames if in Constant QP mode. */
uint32_t averageBitRate ; /**< [in]: Specifies the average bitrate(in bits/sec) used for encoding. */
uint32_t maxBitRate ; /**< [in]: Specifies the maximum bitrate for the encoded output. This is used for VBR and ignored for CBR mode. */
uint32_t vbvBufferSize ; /**< [in]: Specifies the VBV(HRD) buffer size. in bits. Set 0 to use the default VBV buffer size. */
uint32_t vbvInitialDelay ; /**< [in]: Specifies the VBV(HRD) initial delay in bits. Set 0 to use the default VBV initial delay .*/
uint32_t enableMinQP : 1 ; /**< [in]: Set this to 1 if minimum QP used for rate control. */
uint32_t enableMaxQP : 1 ; /**< [in]: Set this to 1 if maximum QP used for rate control. */
uint32_t enableInitialRCQP : 1 ; /**< [in]: Set this to 1 if user suppplied initial QP is used for rate control. */
uint32_t enableAQ : 1 ; /**< [in]: Set this to 1 to enable adaptive quantization (Spatial). */
uint32_t reservedBitField1 : 1 ; /**< [in]: Reserved bitfields and must be set to 0. */
uint32_t enableLookahead : 1 ; /**< [in]: Set this to 1 to enable lookahead with depth <lookaheadDepth> (if lookahead is enabled, input frames must remain available to the encoder until encode completion) */
uint32_t disableIadapt : 1 ; /**< [in]: Set this to 1 to disable adaptive I-frame insertion at scene cuts (only has an effect when lookahead is enabled) */
uint32_t disableBadapt : 1 ; /**< [in]: Set this to 1 to disable adaptive B-frame decision (only has an effect when lookahead is enabled) */
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uint32_t enableTemporalAQ : 1 ; /**< [in]: Set this to 1 to enable temporal AQ */
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uint32_t zeroReorderDelay : 1 ; /**< [in]: Set this to 1 to indicate zero latency operation (no reordering delay, num_reorder_frames=0) */
uint32_t enableNonRefP : 1 ; /**< [in]: Set this to 1 to enable automatic insertion of non-reference P-frames (no effect if enablePTD=0) */
uint32_t strictGOPTarget : 1 ; /**< [in]: Set this to 1 to minimize GOP-to-GOP rate fluctuations */
uint32_t aqStrength : 4 ; /**< [in]: When AQ (Spatial) is enabled (i.e. NV_ENC_RC_PARAMS::enableAQ is set), this field is used to specify AQ strength. AQ strength scale is from 1 (low) - 15 (aggressive). If not set, strength is autoselected by driver. */
uint32_t reservedBitFields : 16 ; /**< [in]: Reserved bitfields and must be set to 0 */
NV_ENC_QP minQP ; /**< [in]: Specifies the minimum QP used for rate control. Client must set NV_ENC_CONFIG::enableMinQP to 1. */
NV_ENC_QP maxQP ; /**< [in]: Specifies the maximum QP used for rate control. Client must set NV_ENC_CONFIG::enableMaxQP to 1. */
NV_ENC_QP initialRCQP ; /**< [in]: Specifies the initial QP used for rate control. Client must set NV_ENC_CONFIG::enableInitialRCQP to 1. */
uint32_t temporallayerIdxMask ; /**< [in]: Specifies the temporal layers (as a bitmask) whose QPs have changed. Valid max bitmask is [2^NV_ENC_CAPS_NUM_MAX_TEMPORAL_LAYERS - 1] */
uint8_t temporalLayerQP [ 8 ] ; /**< [in]: Specifies the temporal layer QPs used for rate control. Temporal layer index is used as as the array index */
uint8_t targetQuality ; /**< [in]: Target CQ (Constant Quality) level for VBR mode (range 0-51 with 0-automatic) */
uint8_t targetQualityLSB ; /**< [in]: Fractional part of target quality (as 8.8 fixed point format) */
uint16_t lookaheadDepth ; /**< [in]: Maximum depth of lookahead with range 0-32 (only used if enableLookahead=1) */
uint32_t reserved1 ;
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NV_ENC_QP_MAP_MODE qpMapMode ; /**< [in]: This flag is used to interpret values in array specified by NV_ENC_PIC_PARAMS::qpDeltaMap.
Set this to NV_ENC_QP_MAP_EMPHASIS to treat values specified by NV_ENC_PIC_PARAMS : : qpDeltaMap as Emphasis Level Map .
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Emphasis Level can be assigned any value specified in enum NV_ENC_EMPHASIS_MAP_LEVEL .
Emphasis Level Map is used to specify regions to be encoded at varying levels of quality .
The hardware encoder adjusts the quantization within the image as per the provided emphasis map ,
by adjusting the quantization parameter ( QP ) assigned to each macroblock . This adjustment is commonly called “ Delta QP ” .
The adjustment depends on the absolute QP decided by the rate control algorithm , and is applied after the rate control has decided each macroblock ’ s QP .
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Since the Delta QP overrides rate control , enabling Emphasis Level Map may violate bitrate and VBV buffer size constraints .
Emphasis Level Map is useful in situations where client has a priori knowledge of the image complexity ( e . g . via use of NVFBC ' s Classification feature ) and encoding those high - complexity areas at higher quality ( lower QP ) is important , even at the possible cost of violating bitrate / VBV buffer size constraints
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This feature is not supported when AQ ( Spatial / Temporal ) is enabled .
This feature is only supported for H264 codec currently .
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Set this to NV_ENC_QP_MAP_DELTA to treat values specified by NV_ENC_PIC_PARAMS : : qpDeltaMap as QPDelta . This specifies QP modifier to be applied on top of the QP chosen by rate control
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Set this to NV_ENC_QP_MAP_DISABLED to ignore NV_ENC_PIC_PARAMS : : qpDeltaMap values . In this case , qpDeltaMap should be set to NULL .
Other values are reserved for future use . */
uint32_t reserved [ 7 ] ;
} NV_ENC_RC_PARAMS ;
/** macro for constructing the version field of ::_NV_ENC_RC_PARAMS */
# define NV_ENC_RC_PARAMS_VER NVENCAPI_STRUCT_VERSION(1)
/**
* \ struct _NV_ENC_CONFIG_H264_VUI_PARAMETERS
* H264 Video Usability Info parameters
*/
typedef struct _NV_ENC_CONFIG_H264_VUI_PARAMETERS
{
uint32_t overscanInfoPresentFlag ; /**< [in]: if set to 1 , it specifies that the overscanInfo is present */
uint32_t overscanInfo ; /**< [in]: Specifies the overscan info(as defined in Annex E of the ITU-T Specification). */
uint32_t videoSignalTypePresentFlag ; /**< [in]: If set to 1, it specifies that the videoFormat, videoFullRangeFlag and colourDescriptionPresentFlag are present. */
uint32_t videoFormat ; /**< [in]: Specifies the source video format(as defined in Annex E of the ITU-T Specification).*/
uint32_t videoFullRangeFlag ; /**< [in]: Specifies the output range of the luma and chroma samples(as defined in Annex E of the ITU-T Specification). */
uint32_t colourDescriptionPresentFlag ; /**< [in]: If set to 1, it specifies that the colourPrimaries, transferCharacteristics and colourMatrix are present. */
uint32_t colourPrimaries ; /**< [in]: Specifies color primaries for converting to RGB(as defined in Annex E of the ITU-T Specification) */
uint32_t transferCharacteristics ; /**< [in]: Specifies the opto-electronic transfer characteristics to use (as defined in Annex E of the ITU-T Specification) */
uint32_t colourMatrix ; /**< [in]: Specifies the matrix coefficients used in deriving the luma and chroma from the RGB primaries (as defined in Annex E of the ITU-T Specification). */
uint32_t chromaSampleLocationFlag ; /**< [in]: if set to 1 , it specifies that the chromaSampleLocationTop and chromaSampleLocationBot are present.*/
uint32_t chromaSampleLocationTop ; /**< [in]: Specifies the chroma sample location for top field(as defined in Annex E of the ITU-T Specification) */
uint32_t chromaSampleLocationBot ; /**< [in]: Specifies the chroma sample location for bottom field(as defined in Annex E of the ITU-T Specification) */
uint32_t bitstreamRestrictionFlag ; /**< [in]: if set to 1, it specifies the bitstream restriction parameters are present in the bitstream.*/
uint32_t reserved [ 15 ] ;
} NV_ENC_CONFIG_H264_VUI_PARAMETERS ;
typedef NV_ENC_CONFIG_H264_VUI_PARAMETERS NV_ENC_CONFIG_HEVC_VUI_PARAMETERS ;
/**
* \ struct _NVENC_EXTERNAL_ME_HINT_COUNTS_PER_BLOCKTYPE
* External motion vector hint counts per block type .
* H264 supports multiple hint while HEVC supports one hint for each valid candidate .
*/
typedef struct _NVENC_EXTERNAL_ME_HINT_COUNTS_PER_BLOCKTYPE
{
uint32_t numCandsPerBlk16x16 : 4 ; /**< [in]: Supported for H264,HEVC.It Specifies the number of candidates per 16x16 block. */
uint32_t numCandsPerBlk16x8 : 4 ; /**< [in]: Supported for H264 only.Specifies the number of candidates per 16x8 block. */
uint32_t numCandsPerBlk8x16 : 4 ; /**< [in]: Supported for H264 only.Specifies the number of candidates per 8x16 block. */
uint32_t numCandsPerBlk8x8 : 4 ; /**< [in]: Supported for H264,HEVC.Specifies the number of candidates per 8x8 block. */
uint32_t reserved : 16 ; /**< [in]: Reserved for padding. */
uint32_t reserved1 [ 3 ] ; /**< [in]: Reserved for future use. */
} NVENC_EXTERNAL_ME_HINT_COUNTS_PER_BLOCKTYPE ;
/**
* \ struct _NVENC_EXTERNAL_ME_HINT
* External Motion Vector hint structure .
*/
typedef struct _NVENC_EXTERNAL_ME_HINT
{
int32_t mvx : 12 ; /**< [in]: Specifies the x component of integer pixel MV (relative to current MB) S12.0. */
int32_t mvy : 10 ; /**< [in]: Specifies the y component of integer pixel MV (relative to current MB) S10.0 .*/
int32_t refidx : 5 ; /**< [in]: Specifies the reference index (31=invalid). Current we support only 1 reference frame per direction for external hints, so \p refidx must be 0. */
int32_t dir : 1 ; /**< [in]: Specifies the direction of motion estimation . 0=L0 1=L1.*/
int32_t partType : 2 ; /**< [in]: Specifies the block partition type.0=16x16 1=16x8 2=8x16 3=8x8 (blocks in partition must be consecutive).*/
int32_t lastofPart : 1 ; /**< [in]: Set to 1 for the last MV of (sub) partition */
int32_t lastOfMB : 1 ; /**< [in]: Set to 1 for the last MV of macroblock. */
} NVENC_EXTERNAL_ME_HINT ;
/**
* \ struct _NV_ENC_CONFIG_H264
* H264 encoder configuration parameters
*/
typedef struct _NV_ENC_CONFIG_H264
{
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uint32_t reserved : 1 ; /**< [in]: Reserved and must be set to 0 */
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uint32_t enableStereoMVC : 1 ; /**< [in]: Set to 1 to enable stereo MVC*/
uint32_t hierarchicalPFrames : 1 ; /**< [in]: Set to 1 to enable hierarchical PFrames */
uint32_t hierarchicalBFrames : 1 ; /**< [in]: Set to 1 to enable hierarchical BFrames */
uint32_t outputBufferingPeriodSEI : 1 ; /**< [in]: Set to 1 to write SEI buffering period syntax in the bitstream */
uint32_t outputPictureTimingSEI : 1 ; /**< [in]: Set to 1 to write SEI picture timing syntax in the bitstream. When set for following rateControlMode : NV_ENC_PARAMS_RC_CBR, NV_ENC_PARAMS_RC_CBR_LOWDELAY_HQ,
NV_ENC_PARAMS_RC_CBR_HQ , filler data is inserted if needed to achieve hrd bitrate */
uint32_t outputAUD : 1 ; /**< [in]: Set to 1 to write access unit delimiter syntax in bitstream */
uint32_t disableSPSPPS : 1 ; /**< [in]: Set to 1 to disable writing of Sequence and Picture parameter info in bitstream */
uint32_t outputFramePackingSEI : 1 ; /**< [in]: Set to 1 to enable writing of frame packing arrangement SEI messages to bitstream */
uint32_t outputRecoveryPointSEI : 1 ; /**< [in]: Set to 1 to enable writing of recovery point SEI message */
uint32_t enableIntraRefresh : 1 ; /**< [in]: Set to 1 to enable gradual decoder refresh or intra refresh. If the GOP structure uses B frames this will be ignored */
uint32_t enableConstrainedEncoding : 1 ; /**< [in]: Set this to 1 to enable constrainedFrame encoding where each slice in the constarined picture is independent of other slices
Check support for constrained encoding using : : NV_ENC_CAPS_SUPPORT_CONSTRAINED_ENCODING caps . */
uint32_t repeatSPSPPS : 1 ; /**< [in]: Set to 1 to enable writing of Sequence and Picture parameter for every IDR frame */
uint32_t enableVFR : 1 ; /**< [in]: Set to 1 to enable variable frame rate. */
uint32_t enableLTR : 1 ; /**< [in]: Set to 1 to enable LTR (Long Term Reference) frame support. LTR can be used in two modes: "LTR Trust" mode and "LTR Per Picture" mode.
LTR Trust mode : In this mode , ltrNumFrames pictures after IDR are automatically marked as LTR . This mode is enabled by setting ltrTrustMode = 1.
Use of LTR Trust mode is strongly discouraged as this mode may be deprecated in future .
LTR Per Picture mode : In this mode , client can control whether the current picture should be marked as LTR . Enable this mode by setting
ltrTrustMode = 0 and ltrMarkFrame = 1 for the picture to be marked as LTR . This is the preferred mode
for using LTR .
Note that LTRs are not supported if encoding session is configured with B - frames */
uint32_t qpPrimeYZeroTransformBypassFlag : 1 ; /**< [in]: To enable lossless encode set this to 1, set QP to 0 and RC_mode to NV_ENC_PARAMS_RC_CONSTQP and profile to HIGH_444_PREDICTIVE_PROFILE.
Check support for lossless encoding using : : NV_ENC_CAPS_SUPPORT_LOSSLESS_ENCODE caps . */
uint32_t useConstrainedIntraPred : 1 ; /**< [in]: Set 1 to enable constrained intra prediction. */
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uint32_t enableFillerDataInsertion : 1 ; /**< [in]: Set to 1 to enable insertion of filler data in the bitstream.
This flag will take effect only when one of the CBR rate
control modes ( NV_ENC_PARAMS_RC_CBR , NV_ENC_PARAMS_RC_CBR_HQ ,
NV_ENC_PARAMS_RC_CBR_LOWDELAY_HQ ) is in use and both
NV_ENC_INITIALIZE_PARAMS : : frameRateNum and
NV_ENC_INITIALIZE_PARAMS : : frameRateDen are set to non - zero
values . Setting this field when
NV_ENC_INITIALIZE_PARAMS : : enableOutputInVidmem is also set
is currently not supported and will make : : NvEncInitializeEncoder ( )
return an error . */
uint32_t reservedBitFields : 14 ; /**< [in]: Reserved bitfields and must be set to 0 */
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uint32_t level ; /**< [in]: Specifies the encoding level. Client is recommended to set this to NV_ENC_LEVEL_AUTOSELECT in order to enable the NvEncodeAPI interface to select the correct level. */
uint32_t idrPeriod ; /**< [in]: Specifies the IDR interval. If not set, this is made equal to gopLength in NV_ENC_CONFIG.Low latency application client can set IDR interval to NVENC_INFINITE_GOPLENGTH so that IDR frames are not inserted automatically. */
uint32_t separateColourPlaneFlag ; /**< [in]: Set to 1 to enable 4:4:4 separate colour planes */
uint32_t disableDeblockingFilterIDC ; /**< [in]: Specifies the deblocking filter mode. Permissible value range: [0,2] */
uint32_t numTemporalLayers ; /**< [in]: Specifies max temporal layers to be used for hierarchical coding. Valid value range is [1,::NV_ENC_CAPS_NUM_MAX_TEMPORAL_LAYERS] */
uint32_t spsId ; /**< [in]: Specifies the SPS id of the sequence header */
uint32_t ppsId ; /**< [in]: Specifies the PPS id of the picture header */
NV_ENC_H264_ADAPTIVE_TRANSFORM_MODE adaptiveTransformMode ; /**< [in]: Specifies the AdaptiveTransform Mode. Check support for AdaptiveTransform mode using ::NV_ENC_CAPS_SUPPORT_ADAPTIVE_TRANSFORM caps. */
NV_ENC_H264_FMO_MODE fmoMode ; /**< [in]: Specified the FMO Mode. Check support for FMO using ::NV_ENC_CAPS_SUPPORT_FMO caps. */
NV_ENC_H264_BDIRECT_MODE bdirectMode ; /**< [in]: Specifies the BDirect mode. Check support for BDirect mode using ::NV_ENC_CAPS_SUPPORT_BDIRECT_MODE caps.*/
NV_ENC_H264_ENTROPY_CODING_MODE entropyCodingMode ; /**< [in]: Specifies the entropy coding mode. Check support for CABAC mode using ::NV_ENC_CAPS_SUPPORT_CABAC caps. */
NV_ENC_STEREO_PACKING_MODE stereoMode ; /**< [in]: Specifies the stereo frame packing mode which is to be signalled in frame packing arrangement SEI */
uint32_t intraRefreshPeriod ; /**< [in]: Specifies the interval between successive intra refresh if enableIntrarefresh is set. Requires enableIntraRefresh to be set.
Will be disabled if NV_ENC_CONFIG : : gopLength is not set to NVENC_INFINITE_GOPLENGTH . */
uint32_t intraRefreshCnt ; /**< [in]: Specifies the length of intra refresh in number of frames for periodic intra refresh. This value should be smaller than intraRefreshPeriod */
uint32_t maxNumRefFrames ; /**< [in]: Specifies the DPB size used for encoding. Setting it to 0 will let driver use the default dpb size.
The low latency application which wants to invalidate reference frame as an error resilience tool
is recommended to use a large DPB size so that the encoder can keep old reference frames which can be used if recent
frames are invalidated . */
uint32_t sliceMode ; /**< [in]: This parameter in conjunction with sliceModeData specifies the way in which the picture is divided into slices
sliceMode = 0 MB based slices , sliceMode = 1 Byte based slices , sliceMode = 2 MB row based slices , sliceMode = 3 numSlices in Picture .
When forceIntraRefreshWithFrameCnt is set it will have priority over sliceMode setting
When sliceMode = = 0 and sliceModeData = = 0 whole picture will be coded with one slice */
uint32_t sliceModeData ; /**< [in]: Specifies the parameter needed for sliceMode. For:
sliceMode = 0 , sliceModeData specifies # of MBs in each slice ( except last slice )
sliceMode = 1 , sliceModeData specifies maximum # of bytes in each slice ( except last slice )
sliceMode = 2 , sliceModeData specifies # of MB rows in each slice ( except last slice )
sliceMode = 3 , sliceModeData specifies number of slices in the picture . Driver will divide picture into slices optimally */
NV_ENC_CONFIG_H264_VUI_PARAMETERS h264VUIParameters ; /**< [in]: Specifies the H264 video usability info pamameters */
uint32_t ltrNumFrames ; /**< [in]: Specifies the number of LTR frames. This parameter has different meaning in two LTR modes.
In " LTR Trust " mode ( ltrTrustMode = 1 ) , encoder will mark the first ltrNumFrames base layer reference frames within each IDR interval as LTR .
In " LTR Per Picture " mode ( ltrTrustMode = 0 and ltrMarkFrame = 1 ) , ltrNumFrames specifies maximum number of LTR frames in DPB . */
uint32_t ltrTrustMode ; /**< [in]: Specifies the LTR operating mode. See comments near NV_ENC_CONFIG_H264::enableLTR for description of the two modes.
Set to 1 to use " LTR Trust " mode of LTR operation . Clients are discouraged to use " LTR Trust " mode as this mode may
be deprecated in future releases .
Set to 0 when using " LTR Per Picture " mode of LTR operation . */
uint32_t chromaFormatIDC ; /**< [in]: Specifies the chroma format. Should be set to 1 for yuv420 input, 3 for yuv444 input.
Check support for YUV444 encoding using : : NV_ENC_CAPS_SUPPORT_YUV444_ENCODE caps . */
uint32_t maxTemporalLayers ; /**< [in]: Specifies the max temporal layer used for hierarchical coding. */
NV_ENC_BFRAME_REF_MODE useBFramesAsRef ; /**< [in]: Specifies the B-Frame as reference mode. Check support for useBFramesAsRef mode using ::NV_ENC_CAPS_SUPPORT_BFRAME_REF_MODE caps.*/
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NV_ENC_NUM_REF_FRAMES numRefL0 ; /**< [in]: Specifies max number of reference frames in reference picture list L0, that can be used by hardware for prediction of a frame.
Check support for numRefL0 using : : NV_ENC_CAPS_SUPPORT_MULTIPLE_REF_FRAMES caps . */
NV_ENC_NUM_REF_FRAMES numRefL1 ; /**< [in]: Specifies max number of reference frames in reference picture list L1, that can be used by hardware for prediction of a frame.
Check support for numRefL1 using : : NV_ENC_CAPS_SUPPORT_MULTIPLE_REF_FRAMES caps . */
uint32_t reserved1 [ 267 ] ; /**< [in]: Reserved and must be set to 0 */
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void * reserved2 [ 64 ] ; /**< [in]: Reserved and must be set to NULL */
} NV_ENC_CONFIG_H264 ;
/**
* \ struct _NV_ENC_CONFIG_HEVC
* HEVC encoder configuration parameters to be set during initialization .
*/
typedef struct _NV_ENC_CONFIG_HEVC
{
uint32_t level ; /**< [in]: Specifies the level of the encoded bitstream.*/
uint32_t tier ; /**< [in]: Specifies the level tier of the encoded bitstream.*/
NV_ENC_HEVC_CUSIZE minCUSize ; /**< [in]: Specifies the minimum size of luma coding unit.*/
NV_ENC_HEVC_CUSIZE maxCUSize ; /**< [in]: Specifies the maximum size of luma coding unit. Currently NVENC SDK only supports maxCUSize equal to NV_ENC_HEVC_CUSIZE_32x32.*/
uint32_t useConstrainedIntraPred : 1 ; /**< [in]: Set 1 to enable constrained intra prediction. */
uint32_t disableDeblockAcrossSliceBoundary : 1 ; /**< [in]: Set 1 to disable in loop filtering across slice boundary.*/
uint32_t outputBufferingPeriodSEI : 1 ; /**< [in]: Set 1 to write SEI buffering period syntax in the bitstream */
uint32_t outputPictureTimingSEI : 1 ; /**< [in]: Set 1 to write SEI picture timing syntax in the bitstream */
uint32_t outputAUD : 1 ; /**< [in]: Set 1 to write Access Unit Delimiter syntax. */
uint32_t enableLTR : 1 ; /**< [in]: Set to 1 to enable LTR (Long Term Reference) frame support. LTR can be used in two modes: "LTR Trust" mode and "LTR Per Picture" mode.
LTR Trust mode : In this mode , ltrNumFrames pictures after IDR are automatically marked as LTR . This mode is enabled by setting ltrTrustMode = 1.
Use of LTR Trust mode is strongly discouraged as this mode may be deprecated in future releases .
LTR Per Picture mode : In this mode , client can control whether the current picture should be marked as LTR . Enable this mode by setting
ltrTrustMode = 0 and ltrMarkFrame = 1 for the picture to be marked as LTR . This is the preferred mode
for using LTR .
Note that LTRs are not supported if encoding session is configured with B - frames */
uint32_t disableSPSPPS : 1 ; /**< [in]: Set 1 to disable VPS,SPS and PPS signalling in the bitstream. */
uint32_t repeatSPSPPS : 1 ; /**< [in]: Set 1 to output VPS,SPS and PPS for every IDR frame.*/
uint32_t enableIntraRefresh : 1 ; /**< [in]: Set 1 to enable gradual decoder refresh or intra refresh. If the GOP structure uses B frames this will be ignored */
uint32_t chromaFormatIDC : 2 ; /**< [in]: Specifies the chroma format. Should be set to 1 for yuv420 input, 3 for yuv444 input.*/
uint32_t pixelBitDepthMinus8 : 3 ; /**< [in]: Specifies pixel bit depth minus 8. Should be set to 0 for 8 bit input, 2 for 10 bit input.*/
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uint32_t enableFillerDataInsertion : 1 ; /**< [in]: Set to 1 to enable insertion of filler data in the bitstream.
This flag will take effect only when one of the CBR rate
control modes ( NV_ENC_PARAMS_RC_CBR , NV_ENC_PARAMS_RC_CBR_HQ ,
NV_ENC_PARAMS_RC_CBR_LOWDELAY_HQ ) is in use and both
NV_ENC_INITIALIZE_PARAMS : : frameRateNum and
NV_ENC_INITIALIZE_PARAMS : : frameRateDen are set to non - zero
values . Setting this field when
NV_ENC_INITIALIZE_PARAMS : : enableOutputInVidmem is also set
is currently not supported and will make : : NvEncInitializeEncoder ( )
return an error . */
uint32_t reserved : 17 ; /**< [in]: Reserved bitfields.*/
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uint32_t idrPeriod ; /**< [in]: Specifies the IDR interval. If not set, this is made equal to gopLength in NV_ENC_CONFIG.Low latency application client can set IDR interval to NVENC_INFINITE_GOPLENGTH so that IDR frames are not inserted automatically. */
uint32_t intraRefreshPeriod ; /**< [in]: Specifies the interval between successive intra refresh if enableIntrarefresh is set. Requires enableIntraRefresh to be set.
Will be disabled if NV_ENC_CONFIG : : gopLength is not set to NVENC_INFINITE_GOPLENGTH . */
uint32_t intraRefreshCnt ; /**< [in]: Specifies the length of intra refresh in number of frames for periodic intra refresh. This value should be smaller than intraRefreshPeriod */
uint32_t maxNumRefFramesInDPB ; /**< [in]: Specifies the maximum number of references frames in the DPB.*/
uint32_t ltrNumFrames ; /**< [in]: This parameter has different meaning in two LTR modes.
In " LTR Trust " mode ( ltrTrustMode = 1 ) , encoder will mark the first ltrNumFrames base layer reference frames within each IDR interval as LTR .
In " LTR Per Picture " mode ( ltrTrustMode = 0 and ltrMarkFrame = 1 ) , ltrNumFrames specifies maximum number of LTR frames in DPB . */
uint32_t vpsId ; /**< [in]: Specifies the VPS id of the video parameter set */
uint32_t spsId ; /**< [in]: Specifies the SPS id of the sequence header */
uint32_t ppsId ; /**< [in]: Specifies the PPS id of the picture header */
uint32_t sliceMode ; /**< [in]: This parameter in conjunction with sliceModeData specifies the way in which the picture is divided into slices
sliceMode = 0 CTU based slices , sliceMode = 1 Byte based slices , sliceMode = 2 CTU row based slices , sliceMode = 3 , numSlices in Picture
When sliceMode = = 0 and sliceModeData = = 0 whole picture will be coded with one slice */
uint32_t sliceModeData ; /**< [in]: Specifies the parameter needed for sliceMode. For:
sliceMode = 0 , sliceModeData specifies # of CTUs in each slice ( except last slice )
sliceMode = 1 , sliceModeData specifies maximum # of bytes in each slice ( except last slice )
sliceMode = 2 , sliceModeData specifies # of CTU rows in each slice ( except last slice )
sliceMode = 3 , sliceModeData specifies number of slices in the picture . Driver will divide picture into slices optimally */
uint32_t maxTemporalLayersMinus1 ; /**< [in]: Specifies the max temporal layer used for hierarchical coding. */
NV_ENC_CONFIG_HEVC_VUI_PARAMETERS hevcVUIParameters ; /**< [in]: Specifies the HEVC video usability info pamameters */
uint32_t ltrTrustMode ; /**< [in]: Specifies the LTR operating mode. See comments near NV_ENC_CONFIG_HEVC::enableLTR for description of the two modes.
Set to 1 to use " LTR Trust " mode of LTR operation . Clients are discouraged to use " LTR Trust " mode as this mode may
be deprecated in future releases .
Set to 0 when using " LTR Per Picture " mode of LTR operation . */
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NV_ENC_BFRAME_REF_MODE useBFramesAsRef ; /**< [in]: Specifies the B-Frame as reference mode. Check support for useBFramesAsRef mode using ::NV_ENC_CAPS_SUPPORT_BFRAME_REF_MODE caps.*/
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NV_ENC_NUM_REF_FRAMES numRefL0 ; /**< [in]: Specifies max number of reference frames in reference picture list L0, that can be used by hardware for prediction of a frame.
Check support for numRefL0 using : : NV_ENC_CAPS_SUPPORT_MULTIPLE_REF_FRAMES caps . */
NV_ENC_NUM_REF_FRAMES numRefL1 ; /**< [in]: Specifies max number of reference frames in reference picture list L1, that can be used by hardware for prediction of a frame.
Check support for numRefL1 using : : NV_ENC_CAPS_SUPPORT_MULTIPLE_REF_FRAMES caps . */
uint32_t reserved1 [ 214 ] ; /**< [in]: Reserved and must be set to 0.*/
void * reserved2 [ 64 ] ; /**< [in]: Reserved and must be set to NULL */
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} NV_ENC_CONFIG_HEVC ;
/**
* \ struct _NV_ENC_CONFIG_H264_MEONLY
* H264 encoder configuration parameters for ME only Mode
*
*/
typedef struct _NV_ENC_CONFIG_H264_MEONLY
{
uint32_t disablePartition16x16 : 1 ; /**< [in]: Disable MotionEstimation on 16x16 blocks*/
uint32_t disablePartition8x16 : 1 ; /**< [in]: Disable MotionEstimation on 8x16 blocks*/
uint32_t disablePartition16x8 : 1 ; /**< [in]: Disable MotionEstimation on 16x8 blocks*/
uint32_t disablePartition8x8 : 1 ; /**< [in]: Disable MotionEstimation on 8x8 blocks*/
uint32_t disableIntraSearch : 1 ; /**< [in]: Disable Intra search during MotionEstimation*/
uint32_t bStereoEnable : 1 ; /**< [in]: Enable Stereo Mode for Motion Estimation where each view is independently executed*/
uint32_t reserved : 26 ; /**< [in]: Reserved and must be set to 0 */
uint32_t reserved1 [ 255 ] ; /**< [in]: Reserved and must be set to 0 */
void * reserved2 [ 64 ] ; /**< [in]: Reserved and must be set to NULL */
} NV_ENC_CONFIG_H264_MEONLY ;
/**
* \ struct _NV_ENC_CONFIG_HEVC_MEONLY
* HEVC encoder configuration parameters for ME only Mode
*
*/
typedef struct _NV_ENC_CONFIG_HEVC_MEONLY
{
uint32_t reserved [ 256 ] ; /**< [in]: Reserved and must be set to 0 */
void * reserved1 [ 64 ] ; /**< [in]: Reserved and must be set to NULL */
} NV_ENC_CONFIG_HEVC_MEONLY ;
/**
* \ struct _NV_ENC_CODEC_CONFIG
* Codec - specific encoder configuration parameters to be set during initialization .
*/
typedef union _NV_ENC_CODEC_CONFIG
{
NV_ENC_CONFIG_H264 h264Config ; /**< [in]: Specifies the H.264-specific encoder configuration. */
NV_ENC_CONFIG_HEVC hevcConfig ; /**< [in]: Specifies the HEVC-specific encoder configuration. */
NV_ENC_CONFIG_H264_MEONLY h264MeOnlyConfig ; /**< [in]: Specifies the H.264-specific ME only encoder configuration. */
NV_ENC_CONFIG_HEVC_MEONLY hevcMeOnlyConfig ; /**< [in]: Specifies the HEVC-specific ME only encoder configuration. */
uint32_t reserved [ 320 ] ; /**< [in]: Reserved and must be set to 0 */
} NV_ENC_CODEC_CONFIG ;
/**
* \ struct _NV_ENC_CONFIG
* Encoder configuration parameters to be set during initialization .
*/
typedef struct _NV_ENC_CONFIG
{
uint32_t version ; /**< [in]: Struct version. Must be set to ::NV_ENC_CONFIG_VER. */
GUID profileGUID ; /**< [in]: Specifies the codec profile guid. If client specifies \p NV_ENC_CODEC_PROFILE_AUTOSELECT_GUID the NvEncodeAPI interface will select the appropriate codec profile. */
uint32_t gopLength ; /**< [in]: Specifies the number of pictures in one GOP. Low latency application client can set goplength to NVENC_INFINITE_GOPLENGTH so that keyframes are not inserted automatically. */
int32_t frameIntervalP ; /**< [in]: Specifies the GOP pattern as follows: \p frameIntervalP = 0: I, 1: IPP, 2: IBP, 3: IBBP If goplength is set to NVENC_INFINITE_GOPLENGTH \p frameIntervalP should be set to 1. */
uint32_t monoChromeEncoding ; /**< [in]: Set this to 1 to enable monochrome encoding for this session. */
NV_ENC_PARAMS_FRAME_FIELD_MODE frameFieldMode ; /**< [in]: Specifies the frame/field mode.
Check support for field encoding using : : NV_ENC_CAPS_SUPPORT_FIELD_ENCODING caps .
Using a frameFieldMode other than NV_ENC_PARAMS_FRAME_FIELD_MODE_FRAME for RGB input is not supported . */
NV_ENC_MV_PRECISION mvPrecision ; /**< [in]: Specifies the desired motion vector prediction precision. */
NV_ENC_RC_PARAMS rcParams ; /**< [in]: Specifies the rate control parameters for the current encoding session. */
NV_ENC_CODEC_CONFIG encodeCodecConfig ; /**< [in]: Specifies the codec specific config parameters through this union. */
uint32_t reserved [ 278 ] ; /**< [in]: Reserved and must be set to 0 */
void * reserved2 [ 64 ] ; /**< [in]: Reserved and must be set to NULL */
} NV_ENC_CONFIG ;
/** macro for constructing the version field of ::_NV_ENC_CONFIG */
# define NV_ENC_CONFIG_VER (NVENCAPI_STRUCT_VERSION(7) | ( 1<<31 ))
/**
* \ struct _NV_ENC_INITIALIZE_PARAMS
* Encode Session Initialization parameters .
*/
typedef struct _NV_ENC_INITIALIZE_PARAMS
{
uint32_t version ; /**< [in]: Struct version. Must be set to ::NV_ENC_INITIALIZE_PARAMS_VER. */
GUID encodeGUID ; /**< [in]: Specifies the Encode GUID for which the encoder is being created. ::NvEncInitializeEncoder() API will fail if this is not set, or set to unsupported value. */
GUID presetGUID ; /**< [in]: Specifies the preset for encoding. If the preset GUID is set then , the preset configuration will be applied before any other parameter. */
uint32_t encodeWidth ; /**< [in]: Specifies the encode width. If not set ::NvEncInitializeEncoder() API will fail. */
uint32_t encodeHeight ; /**< [in]: Specifies the encode height. If not set ::NvEncInitializeEncoder() API will fail. */
uint32_t darWidth ; /**< [in]: Specifies the display aspect ratio Width. */
uint32_t darHeight ; /**< [in]: Specifies the display aspect ratio height. */
uint32_t frameRateNum ; /**< [in]: Specifies the numerator for frame rate used for encoding in frames per second ( Frame rate = frameRateNum / frameRateDen ). */
uint32_t frameRateDen ; /**< [in]: Specifies the denominator for frame rate used for encoding in frames per second ( Frame rate = frameRateNum / frameRateDen ). */
uint32_t enableEncodeAsync ; /**< [in]: Set this to 1 to enable asynchronous mode and is expected to use events to get picture completion notification. */
uint32_t enablePTD ; /**< [in]: Set this to 1 to enable the Picture Type Decision is be taken by the NvEncodeAPI interface. */
uint32_t reportSliceOffsets : 1 ; /**< [in]: Set this to 1 to enable reporting slice offsets in ::_NV_ENC_LOCK_BITSTREAM. NV_ENC_INITIALIZE_PARAMS::enableEncodeAsync must be set to 0 to use this feature. Client must set this to 0 if NV_ENC_CONFIG_H264::sliceMode is 1 on Kepler GPUs */
uint32_t enableSubFrameWrite : 1 ; /**< [in]: Set this to 1 to write out available bitstream to memory at subframe intervals */
uint32_t enableExternalMEHints : 1 ; /**< [in]: Set to 1 to enable external ME hints for the current frame. For NV_ENC_INITIALIZE_PARAMS::enablePTD=1 with B frames, programming L1 hints is optional for B frames since Client doesn't know internal GOP structure.
NV_ENC_PIC_PARAMS : : meHintRefPicDist should preferably be set with enablePTD = 1. */
uint32_t enableMEOnlyMode : 1 ; /**< [in]: Set to 1 to enable ME Only Mode .*/
uint32_t enableWeightedPrediction : 1 ; /**< [in]: Set this to 1 to enable weighted prediction. Not supported if encode session is configured for B-Frames( 'frameIntervalP' in NV_ENC_CONFIG is greater than 1).*/
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uint32_t enableOutputInVidmem : 1 ; /**< [in]: Set this to 1 to enable output of NVENC in video memory buffer created by application. This feature is not supported for HEVC ME only mode. */
uint32_t reservedBitFields : 26 ; /**< [in]: Reserved bitfields and must be set to 0 */
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uint32_t privDataSize ; /**< [in]: Reserved private data buffer size and must be set to 0 */
void * privData ; /**< [in]: Reserved private data buffer and must be set to NULL */
NV_ENC_CONFIG * encodeConfig ; /**< [in]: Specifies the advanced codec specific structure. If client has sent a valid codec config structure, it will override parameters set by the NV_ENC_INITIALIZE_PARAMS::presetGUID parameter. If set to NULL the NvEncodeAPI interface will use the NV_ENC_INITIALIZE_PARAMS::presetGUID to set the codec specific parameters.
Client can also optionally query the NvEncodeAPI interface to get codec specific parameters for a presetGUID using : : NvEncGetEncodePresetConfig ( ) API . It can then modify ( if required ) some of the codec config parameters and send down a custom config structure as part of : : _NV_ENC_INITIALIZE_PARAMS .
Even in this case client is recommended to pass the same preset guid it has used in : : NvEncGetEncodePresetConfig ( ) API to query the config structure ; as NV_ENC_INITIALIZE_PARAMS : : presetGUID . This will not override the custom config structure but will be used to determine other Encoder HW specific parameters not exposed in the API . */
uint32_t maxEncodeWidth ; /**< [in]: Maximum encode width to be used for current Encode session.
Client should allocate output buffers according to this dimension for dynamic resolution change . If set to 0 , Encoder will not allow dynamic resolution change . */
uint32_t maxEncodeHeight ; /**< [in]: Maximum encode height to be allowed for current Encode session.
Client should allocate output buffers according to this dimension for dynamic resolution change . If set to 0 , Encode will not allow dynamic resolution change . */
NVENC_EXTERNAL_ME_HINT_COUNTS_PER_BLOCKTYPE maxMEHintCountsPerBlock [ 2 ] ; /**< [in]: If Client wants to pass external motion vectors in NV_ENC_PIC_PARAMS::meExternalHints buffer it must specify the maximum number of hint candidates per block per direction for the encode session.
The NV_ENC_INITIALIZE_PARAMS : : maxMEHintCountsPerBlock [ 0 ] is for L0 predictors and NV_ENC_INITIALIZE_PARAMS : : maxMEHintCountsPerBlock [ 1 ] is for L1 predictors .
This client must also set NV_ENC_INITIALIZE_PARAMS : : enableExternalMEHints to 1. */
uint32_t reserved [ 289 ] ; /**< [in]: Reserved and must be set to 0 */
void * reserved2 [ 64 ] ; /**< [in]: Reserved and must be set to NULL */
} NV_ENC_INITIALIZE_PARAMS ;
/** macro for constructing the version field of ::_NV_ENC_INITIALIZE_PARAMS */
# define NV_ENC_INITIALIZE_PARAMS_VER (NVENCAPI_STRUCT_VERSION(5) | ( 1<<31 ))
/**
* \ struct _NV_ENC_RECONFIGURE_PARAMS
* Encode Session Reconfigured parameters .
*/
typedef struct _NV_ENC_RECONFIGURE_PARAMS
{
uint32_t version ; /**< [in]: Struct version. Must be set to ::NV_ENC_RECONFIGURE_PARAMS_VER. */
NV_ENC_INITIALIZE_PARAMS reInitEncodeParams ; /**< [in]: Encoder session re-initialization parameters.
If reInitEncodeParams . encodeConfig is NULL and
reInitEncodeParams . presetGUID is the same as the preset
GUID specified on the call to NvEncInitializeEncoder ( ) ,
EncodeAPI will continue to use the existing encode
configuration .
If reInitEncodeParams . encodeConfig is NULL and
reInitEncodeParams . presetGUID is different from the preset
GUID specified on the call to NvEncInitializeEncoder ( ) ,
EncodeAPI will try to use the default configuration for
the preset specified by reInitEncodeParams . presetGUID .
In this case , reconfiguration may fail if the new
configuration is incompatible with the existing
configuration ( e . g . the new configuration results in
a change in the GOP structure ) . */
uint32_t resetEncoder : 1 ; /**< [in]: This resets the rate control states and other internal encoder states. This should be used only with an IDR frame.
If NV_ENC_INITIALIZE_PARAMS : : enablePTD is set to 1 , encoder will force the frame type to IDR */
uint32_t forceIDR : 1 ; /**< [in]: Encode the current picture as an IDR picture. This flag is only valid when Picture type decision is taken by the Encoder
[ _NV_ENC_INITIALIZE_PARAMS : : enablePTD = = 1 ] . */
uint32_t reserved : 30 ;
} NV_ENC_RECONFIGURE_PARAMS ;
/** macro for constructing the version field of ::_NV_ENC_RECONFIGURE_PARAMS */
# define NV_ENC_RECONFIGURE_PARAMS_VER (NVENCAPI_STRUCT_VERSION(1) | ( 1<<31 ))
/**
* \ struct _NV_ENC_PRESET_CONFIG
* Encoder preset config
*/
typedef struct _NV_ENC_PRESET_CONFIG
{
uint32_t version ; /**< [in]: Struct version. Must be set to ::NV_ENC_PRESET_CONFIG_VER. */
NV_ENC_CONFIG presetCfg ; /**< [out]: preset config returned by the Nvidia Video Encoder interface. */
uint32_t reserved1 [ 255 ] ; /**< [in]: Reserved and must be set to 0 */
void * reserved2 [ 64 ] ; /**< [in]: Reserved and must be set to NULL */
} NV_ENC_PRESET_CONFIG ;
/** macro for constructing the version field of ::_NV_ENC_PRESET_CONFIG */
# define NV_ENC_PRESET_CONFIG_VER (NVENCAPI_STRUCT_VERSION(4) | ( 1<<31 ))
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/**
* \ struct _NV_ENC_PIC_PARAMS_MVC
* MVC - specific parameters to be sent on a per - frame basis .
*/
typedef struct _NV_ENC_PIC_PARAMS_MVC
{
uint32_t version ; /**< [in]: Struct version. Must be set to ::NV_ENC_PIC_PARAMS_MVC_VER. */
uint32_t viewID ; /**< [in]: Specifies the view ID associated with the current input view. */
uint32_t temporalID ; /**< [in]: Specifies the temporal ID associated with the current input view. */
uint32_t priorityID ; /**< [in]: Specifies the priority ID associated with the current input view. Reserved and ignored by the NvEncodeAPI interface. */
uint32_t reserved1 [ 12 ] ; /**< [in]: Reserved and must be set to 0. */
void * reserved2 [ 8 ] ; /**< [in]: Reserved and must be set to NULL. */
} NV_ENC_PIC_PARAMS_MVC ;
/** macro for constructing the version field of ::_NV_ENC_PIC_PARAMS_MVC */
# define NV_ENC_PIC_PARAMS_MVC_VER NVENCAPI_STRUCT_VERSION(1)
/**
* \ union _NV_ENC_PIC_PARAMS_H264_EXT
* H264 extension picture parameters
*/
typedef union _NV_ENC_PIC_PARAMS_H264_EXT
{
NV_ENC_PIC_PARAMS_MVC mvcPicParams ; /**< [in]: Specifies the MVC picture parameters. */
uint32_t reserved1 [ 32 ] ; /**< [in]: Reserved and must be set to 0. */
} NV_ENC_PIC_PARAMS_H264_EXT ;
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/**
* \ struct _NV_ENC_SEI_PAYLOAD
* User SEI message
*/
typedef struct _NV_ENC_SEI_PAYLOAD
{
uint32_t payloadSize ; /**< [in] SEI payload size in bytes. SEI payload must be byte aligned, as described in Annex D */
uint32_t payloadType ; /**< [in] SEI payload types and syntax can be found in Annex D of the H.264 Specification. */
uint8_t * payload ; /**< [in] pointer to user data */
} NV_ENC_SEI_PAYLOAD ;
# define NV_ENC_H264_SEI_PAYLOAD NV_ENC_SEI_PAYLOAD
/**
* \ struct _NV_ENC_PIC_PARAMS_H264
* H264 specific enc pic params . sent on a per frame basis .
*/
typedef struct _NV_ENC_PIC_PARAMS_H264
{
uint32_t displayPOCSyntax ; /**< [in]: Specifies the display POC syntax This is required to be set if client is handling the picture type decision. */
uint32_t reserved3 ; /**< [in]: Reserved and must be set to 0 */
uint32_t refPicFlag ; /**< [in]: Set to 1 for a reference picture. This is ignored if NV_ENC_INITIALIZE_PARAMS::enablePTD is set to 1. */
uint32_t colourPlaneId ; /**< [in]: Specifies the colour plane ID associated with the current input. */
uint32_t forceIntraRefreshWithFrameCnt ; /**< [in]: Forces an intra refresh with duration equal to intraRefreshFrameCnt.
When outputRecoveryPointSEI is set this is value is used for recovery_frame_cnt in recovery point SEI message
forceIntraRefreshWithFrameCnt cannot be used if B frames are used in the GOP structure specified */
uint32_t constrainedFrame : 1 ; /**< [in]: Set to 1 if client wants to encode this frame with each slice completely independent of other slices in the frame.
NV_ENC_INITIALIZE_PARAMS : : enableConstrainedEncoding should be set to 1 */
uint32_t sliceModeDataUpdate : 1 ; /**< [in]: Set to 1 if client wants to change the sliceModeData field to specify new sliceSize Parameter
When forceIntraRefreshWithFrameCnt is set it will have priority over sliceMode setting */
uint32_t ltrMarkFrame : 1 ; /**< [in]: Set to 1 if client wants to mark this frame as LTR */
uint32_t ltrUseFrames : 1 ; /**< [in]: Set to 1 if client allows encoding this frame using the LTR frames specified in ltrFrameBitmap */
uint32_t reservedBitFields : 28 ; /**< [in]: Reserved bit fields and must be set to 0 */
uint8_t * sliceTypeData ; /**< [in]: Deprecated. */
uint32_t sliceTypeArrayCnt ; /**< [in]: Deprecated. */
uint32_t seiPayloadArrayCnt ; /**< [in]: Specifies the number of elements allocated in seiPayloadArray array. */
NV_ENC_SEI_PAYLOAD * seiPayloadArray ; /**< [in]: Array of SEI payloads which will be inserted for this frame. */
uint32_t sliceMode ; /**< [in]: This parameter in conjunction with sliceModeData specifies the way in which the picture is divided into slices
sliceMode = 0 MB based slices , sliceMode = 1 Byte based slices , sliceMode = 2 MB row based slices , sliceMode = 3 , numSlices in Picture
When forceIntraRefreshWithFrameCnt is set it will have priority over sliceMode setting
When sliceMode = = 0 and sliceModeData = = 0 whole picture will be coded with one slice */
uint32_t sliceModeData ; /**< [in]: Specifies the parameter needed for sliceMode. For:
sliceMode = 0 , sliceModeData specifies # of MBs in each slice ( except last slice )
sliceMode = 1 , sliceModeData specifies maximum # of bytes in each slice ( except last slice )
sliceMode = 2 , sliceModeData specifies # of MB rows in each slice ( except last slice )
sliceMode = 3 , sliceModeData specifies number of slices in the picture . Driver will divide picture into slices optimally */
uint32_t ltrMarkFrameIdx ; /**< [in]: Specifies the long term referenceframe index to use for marking this frame as LTR.*/
uint32_t ltrUseFrameBitmap ; /**< [in]: Specifies the the associated bitmap of LTR frame indices to use when encoding this frame. */
uint32_t ltrUsageMode ; /**< [in]: Not supported. Reserved for future use and must be set to 0. */
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uint32_t forceIntraSliceCount ; /**< [in]: Specfies the number of slices to be forced to Intra in the current picture.
This option along with forceIntraSliceIdx [ ] array needs to be used with sliceMode = 3 only */
uint32_t * forceIntraSliceIdx ; /**< [in]: Slice indices to be forced to intra in the current picture. Each slice index should be <= num_slices_in_picture -1. Index starts from 0 for first slice.
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The number of entries in this array should be equal to forceIntraSliceCount */
NV_ENC_PIC_PARAMS_H264_EXT h264ExtPicParams ; /**< [in]: Specifies the H264 extension config parameters using this config. */
uint32_t reserved [ 210 ] ; /**< [in]: Reserved and must be set to 0. */
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void * reserved2 [ 61 ] ; /**< [in]: Reserved and must be set to NULL. */
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} NV_ENC_PIC_PARAMS_H264 ;
/**
* \ struct _NV_ENC_PIC_PARAMS_HEVC
* HEVC specific enc pic params . sent on a per frame basis .
*/
typedef struct _NV_ENC_PIC_PARAMS_HEVC
{
uint32_t displayPOCSyntax ; /**< [in]: Specifies the display POC syntax This is required to be set if client is handling the picture type decision. */
uint32_t refPicFlag ; /**< [in]: Set to 1 for a reference picture. This is ignored if NV_ENC_INITIALIZE_PARAMS::enablePTD is set to 1. */
uint32_t temporalId ; /**< [in]: Specifies the temporal id of the picture */
uint32_t forceIntraRefreshWithFrameCnt ; /**< [in]: Forces an intra refresh with duration equal to intraRefreshFrameCnt.
When outputRecoveryPointSEI is set this is value is used for recovery_frame_cnt in recovery point SEI message
forceIntraRefreshWithFrameCnt cannot be used if B frames are used in the GOP structure specified */
uint32_t constrainedFrame : 1 ; /**< [in]: Set to 1 if client wants to encode this frame with each slice completely independent of other slices in the frame.
NV_ENC_INITIALIZE_PARAMS : : enableConstrainedEncoding should be set to 1 */
uint32_t sliceModeDataUpdate : 1 ; /**< [in]: Set to 1 if client wants to change the sliceModeData field to specify new sliceSize Parameter
When forceIntraRefreshWithFrameCnt is set it will have priority over sliceMode setting */
uint32_t ltrMarkFrame : 1 ; /**< [in]: Set to 1 if client wants to mark this frame as LTR */
uint32_t ltrUseFrames : 1 ; /**< [in]: Set to 1 if client allows encoding this frame using the LTR frames specified in ltrFrameBitmap */
uint32_t reservedBitFields : 28 ; /**< [in]: Reserved bit fields and must be set to 0 */
uint8_t * sliceTypeData ; /**< [in]: Array which specifies the slice type used to force intra slice for a particular slice. Currently supported only for NV_ENC_CONFIG_H264::sliceMode == 3.
Client should allocate array of size sliceModeData where sliceModeData is specified in field of : : _NV_ENC_CONFIG_H264
Array element with index n corresponds to nth slice . To force a particular slice to intra client should set corresponding array element to NV_ENC_SLICE_TYPE_I
all other array elements should be set to NV_ENC_SLICE_TYPE_DEFAULT */
uint32_t sliceTypeArrayCnt ; /**< [in]: Client should set this to the number of elements allocated in sliceTypeData array. If sliceTypeData is NULL then this should be set to 0 */
uint32_t sliceMode ; /**< [in]: This parameter in conjunction with sliceModeData specifies the way in which the picture is divided into slices
sliceMode = 0 CTU based slices , sliceMode = 1 Byte based slices , sliceMode = 2 CTU row based slices , sliceMode = 3 , numSlices in Picture
When forceIntraRefreshWithFrameCnt is set it will have priority over sliceMode setting
When sliceMode = = 0 and sliceModeData = = 0 whole picture will be coded with one slice */
uint32_t sliceModeData ; /**< [in]: Specifies the parameter needed for sliceMode. For:
sliceMode = 0 , sliceModeData specifies # of CTUs in each slice ( except last slice )
sliceMode = 1 , sliceModeData specifies maximum # of bytes in each slice ( except last slice )
sliceMode = 2 , sliceModeData specifies # of CTU rows in each slice ( except last slice )
sliceMode = 3 , sliceModeData specifies number of slices in the picture . Driver will divide picture into slices optimally */
uint32_t ltrMarkFrameIdx ; /**< [in]: Specifies the long term reference frame index to use for marking this frame as LTR.*/
uint32_t ltrUseFrameBitmap ; /**< [in]: Specifies the associated bitmap of LTR frame indices to use when encoding this frame. */
uint32_t ltrUsageMode ; /**< [in]: Not supported. Reserved for future use and must be set to 0. */
uint32_t seiPayloadArrayCnt ; /**< [in]: Specifies the number of elements allocated in seiPayloadArray array. */
uint32_t reserved ; /**< [in]: Reserved and must be set to 0. */
NV_ENC_SEI_PAYLOAD * seiPayloadArray ; /**< [in]: Array of SEI payloads which will be inserted for this frame. */
uint32_t reserved2 [ 244 ] ; /**< [in]: Reserved and must be set to 0. */
void * reserved3 [ 61 ] ; /**< [in]: Reserved and must be set to NULL. */
} NV_ENC_PIC_PARAMS_HEVC ;
/**
* Codec specific per - picture encoding parameters .
*/
typedef union _NV_ENC_CODEC_PIC_PARAMS
{
NV_ENC_PIC_PARAMS_H264 h264PicParams ; /**< [in]: H264 encode picture params. */
NV_ENC_PIC_PARAMS_HEVC hevcPicParams ; /**< [in]: HEVC encode picture params. */
uint32_t reserved [ 256 ] ; /**< [in]: Reserved and must be set to 0. */
} NV_ENC_CODEC_PIC_PARAMS ;
/**
* \ struct _NV_ENC_PIC_PARAMS
* Encoding parameters that need to be sent on a per frame basis .
*/
typedef struct _NV_ENC_PIC_PARAMS
{
uint32_t version ; /**< [in]: Struct version. Must be set to ::NV_ENC_PIC_PARAMS_VER. */
uint32_t inputWidth ; /**< [in]: Specifies the input buffer width */
uint32_t inputHeight ; /**< [in]: Specifies the input buffer height */
uint32_t inputPitch ; /**< [in]: Specifies the input buffer pitch. If pitch value is not known, set this to inputWidth. */
uint32_t encodePicFlags ; /**< [in]: Specifies bit-wise OR`ed encode pic flags. See ::NV_ENC_PIC_FLAGS enum. */
uint32_t frameIdx ; /**< [in]: Specifies the frame index associated with the input frame [optional]. */
uint64_t inputTimeStamp ; /**< [in]: Specifies presentation timestamp associated with the input picture. */
uint64_t inputDuration ; /**< [in]: Specifies duration of the input picture */
NV_ENC_INPUT_PTR inputBuffer ; /**< [in]: Specifies the input buffer pointer. Client must use a pointer obtained from ::NvEncCreateInputBuffer() or ::NvEncMapInputResource() APIs.*/
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NV_ENC_OUTPUT_PTR outputBitstream ; /**< [in]: Specifies the output buffer pointer.
If NV_ENC_INITIALIZE_PARAMS : : enableOutputInVidmem is set to 0 , specifies the pointer to output buffer . Client should use a pointer obtained from : : NvEncCreateBitstreamBuffer ( ) API .
If NV_ENC_INITIALIZE_PARAMS : : enableOutputInVidmem is set to 1 , client should allocate buffer in video memory for NV_ENC_ENCODE_OUT_PARAMS struct and encoded bitstream data . Client
should use a pointer obtained from : : NvEncMapInputResource ( ) API , when mapping this output buffer and assign it to NV_ENC_PIC_PARAMS : : outputBitstream .
First 256 bytes of this buffer should be interpreted as NV_ENC_ENCODE_OUT_PARAMS struct followed by encoded bitstream data . Recommended size for output buffer is sum of size of
NV_ENC_ENCODE_OUT_PARAMS struct and twice the input frame size for lower resolution eg . CIF and 1.5 times the input frame size for higher resolutions . If encoded bitstream size is
greater than the allocated buffer size for encoded bitstream , then the output buffer will have encoded bitstream data equal to buffer size . All CUDA operations on this buffer must use
the default stream . */
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void * completionEvent ; /**< [in]: Specifies an event to be signalled on completion of encoding of this Frame [only if operating in Asynchronous mode]. Each output buffer should be associated with a distinct event pointer. */
NV_ENC_BUFFER_FORMAT bufferFmt ; /**< [in]: Specifies the input buffer format. */
NV_ENC_PIC_STRUCT pictureStruct ; /**< [in]: Specifies structure of the input picture. */
NV_ENC_PIC_TYPE pictureType ; /**< [in]: Specifies input picture type. Client required to be set explicitly by the client if the client has not set NV_ENC_INITALIZE_PARAMS::enablePTD to 1 while calling NvInitializeEncoder. */
NV_ENC_CODEC_PIC_PARAMS codecPicParams ; /**< [in]: Specifies the codec specific per-picture encoding parameters. */
NVENC_EXTERNAL_ME_HINT_COUNTS_PER_BLOCKTYPE meHintCountsPerBlock [ 2 ] ; /**< [in]: Specifies the number of hint candidates per block per direction for the current frame. meHintCountsPerBlock[0] is for L0 predictors and meHintCountsPerBlock[1] is for L1 predictors.
The candidate count in NV_ENC_PIC_PARAMS : : meHintCountsPerBlock [ lx ] must never exceed NV_ENC_INITIALIZE_PARAMS : : maxMEHintCountsPerBlock [ lx ] provided during encoder intialization . */
NVENC_EXTERNAL_ME_HINT * meExternalHints ; /**< [in]: Specifies the pointer to ME external hints for the current frame. The size of ME hint buffer should be equal to number of macroblocks * the total number of candidates per macroblock.
The total number of candidates per MB per direction = 1 * meHintCountsPerBlock [ Lx ] . numCandsPerBlk16x16 + 2 * meHintCountsPerBlock [ Lx ] . numCandsPerBlk16x8 + 2 * meHintCountsPerBlock [ Lx ] . numCandsPerBlk8x8
+ 4 * meHintCountsPerBlock [ Lx ] . numCandsPerBlk8x8 . For frames using bidirectional ME , the total number of candidates for single macroblock is sum of total number of candidates per MB for each direction ( L0 and L1 ) */
uint32_t reserved1 [ 6 ] ; /**< [in]: Reserved and must be set to 0 */
void * reserved2 [ 2 ] ; /**< [in]: Reserved and must be set to NULL */
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int8_t * qpDeltaMap ; /**< [in]: Specifies the pointer to signed byte array containing value per MB in raster scan order for the current picture, which will be interpreted depending on NV_ENC_RC_PARAMS::qpMapMode.
If NV_ENC_RC_PARAMS : : qpMapMode is NV_ENC_QP_MAP_DELTA , qpDeltaMap specifies QP modifier per MB . This QP modifier will be applied on top of the QP chosen by rate control .
If NV_ENC_RC_PARAMS : : qpMapMode is NV_ENC_QP_MAP_EMPHASIS , qpDeltaMap specifies Emphasis Level Map per MB . This level value along with QP chosen by rate control is used to
compute the QP modifier , which in turn is applied on top of QP chosen by rate control .
If NV_ENC_RC_PARAMS : : qpMapMode is NV_ENC_QP_MAP_DISABLED , value in qpDeltaMap will be ignored . */
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uint32_t qpDeltaMapSize ; /**< [in]: Specifies the size in bytes of qpDeltaMap surface allocated by client and pointed to by NV_ENC_PIC_PARAMS::qpDeltaMap. Surface (array) should be picWidthInMbs * picHeightInMbs */
uint32_t reservedBitFields ; /**< [in]: Reserved bitfields and must be set to 0 */
uint16_t meHintRefPicDist [ 2 ] ; /**< [in]: Specifies temporal distance for reference picture (NVENC_EXTERNAL_ME_HINT::refidx = 0) used during external ME with NV_ENC_INITALIZE_PARAMS::enablePTD = 1 . meHintRefPicDist[0] is for L0 hints and meHintRefPicDist[1] is for L1 hints.
If not set , will internally infer distance of 1. Ignored for NV_ENC_INITALIZE_PARAMS : : enablePTD = 0 */
uint32_t reserved3 [ 286 ] ; /**< [in]: Reserved and must be set to 0 */
void * reserved4 [ 60 ] ; /**< [in]: Reserved and must be set to NULL */
} NV_ENC_PIC_PARAMS ;
/** Macro for constructing the version field of ::_NV_ENC_PIC_PARAMS */
# define NV_ENC_PIC_PARAMS_VER (NVENCAPI_STRUCT_VERSION(4) | ( 1<<31 ))
/**
* \ struct _NV_ENC_MEONLY_PARAMS
* MEOnly parameters that need to be sent on a per motion estimation basis .
* NV_ENC_MEONLY_PARAMS : : meExternalHints is supported for H264 only .
*/
typedef struct _NV_ENC_MEONLY_PARAMS
{
uint32_t version ; /**< [in]: Struct version. Must be set to NV_ENC_MEONLY_PARAMS_VER.*/
uint32_t inputWidth ; /**< [in]: Specifies the input buffer width */
uint32_t inputHeight ; /**< [in]: Specifies the input buffer height */
NV_ENC_INPUT_PTR inputBuffer ; /**< [in]: Specifies the input buffer pointer. Client must use a pointer obtained from NvEncCreateInputBuffer() or NvEncMapInputResource() APIs. */
NV_ENC_INPUT_PTR referenceFrame ; /**< [in]: Specifies the reference frame pointer */
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NV_ENC_OUTPUT_PTR mvBuffer ; /**< [in]: Specifies the output buffer pointer.
If NV_ENC_INITIALIZE_PARAMS : : enableOutputInVidmem is set to 0 , specifies the pointer to motion vector data buffer allocated by NvEncCreateMVBuffer .
Client must lock mvBuffer using : : NvEncLockBitstream ( ) API to get the motion vector data .
If NV_ENC_INITIALIZE_PARAMS : : enableOutputInVidmem is set to 1 , client should allocate buffer in video memory for storing the motion vector data . The size of this buffer must
be equal to total number of macroblocks multiplied by size of NV_ENC_H264_MV_DATA struct . Client should use a pointer obtained from : : NvEncMapInputResource ( ) API , when mapping this
output buffer and assign it to NV_ENC_MEONLY_PARAMS : : mvBuffer . All CUDA operations on this buffer must use the default stream . */
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NV_ENC_BUFFER_FORMAT bufferFmt ; /**< [in]: Specifies the input buffer format. */
void * completionEvent ; /**< [in]: Specifies an event to be signalled on completion of motion estimation
of this Frame [ only if operating in Asynchronous mode ] .
Each output buffer should be associated with a distinct event pointer . */
uint32_t viewID ; /**< [in]: Specifies left,right viewID if NV_ENC_CONFIG_H264_MEONLY::bStereoEnable is set.
viewID can be 0 , 1 if bStereoEnable is set , 0 otherwise . */
NVENC_EXTERNAL_ME_HINT_COUNTS_PER_BLOCKTYPE
meHintCountsPerBlock [ 2 ] ; /**< [in]: Specifies the number of hint candidates per block for the current frame. meHintCountsPerBlock[0] is for L0 predictors.
The candidate count in NV_ENC_PIC_PARAMS : : meHintCountsPerBlock [ lx ] must never exceed NV_ENC_INITIALIZE_PARAMS : : maxMEHintCountsPerBlock [ lx ] provided during encoder intialization . */
NVENC_EXTERNAL_ME_HINT * meExternalHints ; /**< [in]: Specifies the pointer to ME external hints for the current frame. The size of ME hint buffer should be equal to number of macroblocks * the total number of candidates per macroblock.
The total number of candidates per MB per direction = 1 * meHintCountsPerBlock [ Lx ] . numCandsPerBlk16x16 + 2 * meHintCountsPerBlock [ Lx ] . numCandsPerBlk16x8 + 2 * meHintCountsPerBlock [ Lx ] . numCandsPerBlk8x8
+ 4 * meHintCountsPerBlock [ Lx ] . numCandsPerBlk8x8 . For frames using bidirectional ME , the total number of candidates for single macroblock is sum of total number of candidates per MB for each direction ( L0 and L1 ) */
uint32_t reserved1 [ 243 ] ; /**< [in]: Reserved and must be set to 0 */
void * reserved2 [ 59 ] ; /**< [in]: Reserved and must be set to NULL */
} NV_ENC_MEONLY_PARAMS ;
/** NV_ENC_MEONLY_PARAMS struct version*/
# define NV_ENC_MEONLY_PARAMS_VER NVENCAPI_STRUCT_VERSION(3)
/**
* \ struct _NV_ENC_LOCK_BITSTREAM
* Bitstream buffer lock parameters .
*/
typedef struct _NV_ENC_LOCK_BITSTREAM
{
uint32_t version ; /**< [in]: Struct version. Must be set to ::NV_ENC_LOCK_BITSTREAM_VER. */
uint32_t doNotWait : 1 ; /**< [in]: If this flag is set, the NvEncodeAPI interface will return buffer pointer even if operation is not completed. If not set, the call will block until operation completes. */
uint32_t ltrFrame : 1 ; /**< [out]: Flag indicating this frame is marked as LTR frame */
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uint32_t getRCStats : 1 ; /**< [in]: If this flag is set then lockBitstream call will add additional intra-inter MB count and average MVX, MVY */
uint32_t reservedBitFields : 29 ; /**< [in]: Reserved bit fields and must be set to 0 */
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void * outputBitstream ; /**< [in]: Pointer to the bitstream buffer being locked. */
uint32_t * sliceOffsets ; /**< [in,out]: Array which receives the slice offsets. This is not supported if NV_ENC_CONFIG_H264::sliceMode is 1 on Kepler GPUs. Array size must be equal to size of frame in MBs. */
uint32_t frameIdx ; /**< [out]: Frame no. for which the bitstream is being retrieved. */
uint32_t hwEncodeStatus ; /**< [out]: The NvEncodeAPI interface status for the locked picture. */
uint32_t numSlices ; /**< [out]: Number of slices in the encoded picture. Will be reported only if NV_ENC_INITIALIZE_PARAMS::reportSliceOffsets set to 1. */
uint32_t bitstreamSizeInBytes ; /**< [out]: Actual number of bytes generated and copied to the memory pointed by bitstreamBufferPtr. */
uint64_t outputTimeStamp ; /**< [out]: Presentation timestamp associated with the encoded output. */
uint64_t outputDuration ; /**< [out]: Presentation duration associates with the encoded output. */
void * bitstreamBufferPtr ; /**< [out]: Pointer to the generated output bitstream.
For MEOnly mode _NV_ENC_LOCK_BITSTREAM : : bitstreamBufferPtr should be typecast to
NV_ENC_H264_MV_DATA / NV_ENC_HEVC_MV_DATA pointer respectively for H264 / HEVC */
NV_ENC_PIC_TYPE pictureType ; /**< [out]: Picture type of the encoded picture. */
NV_ENC_PIC_STRUCT pictureStruct ; /**< [out]: Structure of the generated output picture. */
uint32_t frameAvgQP ; /**< [out]: Average QP of the frame. */
uint32_t frameSatd ; /**< [out]: Total SATD cost for whole frame. */
uint32_t ltrFrameIdx ; /**< [out]: Frame index associated with this LTR frame. */
uint32_t ltrFrameBitmap ; /**< [out]: Bitmap of LTR frames indices which were used for encoding this frame. Value of 0 if no LTR frames were used. */
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uint32_t reserved [ 13 ] ; /**< [in]: Reserved and must be set to 0 */
uint32_t intraMBCount ; /**< [out]: For H264, Number of Intra MBs in the encoded frame. For HEVC, Number of Intra CTBs in the encoded frame. Supported only if _NV_ENC_LOCK_BITSTREAM::getRCStats set to 1. */
uint32_t interMBCount ; /**< [out]: For H264, Number of Inter MBs in the encoded frame, includes skip MBs. For HEVC, Number of Inter CTBs in the encoded frame. Supported only if _NV_ENC_LOCK_BITSTREAM::getRCStats set to 1. */
int32_t averageMVX ; /**< [out]: Average Motion Vector in X direction for the encoded frame. Supported only if _NV_ENC_LOCK_BITSTREAM::getRCStats set to 1. */
int32_t averageMVY ; /**< [out]: Average Motion Vector in y direction for the encoded frame. Supported only if _NV_ENC_LOCK_BITSTREAM::getRCStats set to 1. */
uint32_t reserved1 [ 219 ] ; /**< [in]: Reserved and must be set to 0 */
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void * reserved2 [ 64 ] ; /**< [in]: Reserved and must be set to NULL */
} NV_ENC_LOCK_BITSTREAM ;
/** Macro for constructing the version field of ::_NV_ENC_LOCK_BITSTREAM */
# define NV_ENC_LOCK_BITSTREAM_VER NVENCAPI_STRUCT_VERSION(1)
/**
* \ struct _NV_ENC_LOCK_INPUT_BUFFER
* Uncompressed Input Buffer lock parameters .
*/
typedef struct _NV_ENC_LOCK_INPUT_BUFFER
{
uint32_t version ; /**< [in]: Struct version. Must be set to ::NV_ENC_LOCK_INPUT_BUFFER_VER. */
uint32_t doNotWait : 1 ; /**< [in]: Set to 1 to make ::NvEncLockInputBuffer() a unblocking call. If the encoding is not completed, driver will return ::NV_ENC_ERR_ENCODER_BUSY error code. */
uint32_t reservedBitFields : 31 ; /**< [in]: Reserved bitfields and must be set to 0 */
NV_ENC_INPUT_PTR inputBuffer ; /**< [in]: Pointer to the input buffer to be locked, client should pass the pointer obtained from ::NvEncCreateInputBuffer() or ::NvEncMapInputResource API. */
void * bufferDataPtr ; /**< [out]: Pointed to the locked input buffer data. Client can only access input buffer using the \p bufferDataPtr. */
uint32_t pitch ; /**< [out]: Pitch of the locked input buffer. */
uint32_t reserved1 [ 251 ] ; /**< [in]: Reserved and must be set to 0 */
void * reserved2 [ 64 ] ; /**< [in]: Reserved and must be set to NULL */
} NV_ENC_LOCK_INPUT_BUFFER ;
/** Macro for constructing the version field of ::_NV_ENC_LOCK_INPUT_BUFFER */
# define NV_ENC_LOCK_INPUT_BUFFER_VER NVENCAPI_STRUCT_VERSION(1)
/**
* \ struct _NV_ENC_MAP_INPUT_RESOURCE
* Map an input resource to a Nvidia Encoder Input Buffer
*/
typedef struct _NV_ENC_MAP_INPUT_RESOURCE
{
uint32_t version ; /**< [in]: Struct version. Must be set to ::NV_ENC_MAP_INPUT_RESOURCE_VER. */
uint32_t subResourceIndex ; /**< [in]: Deprecated. Do not use. */
void * inputResource ; /**< [in]: Deprecated. Do not use. */
NV_ENC_REGISTERED_PTR registeredResource ; /**< [in]: The Registered resource handle obtained by calling NvEncRegisterInputResource. */
NV_ENC_INPUT_PTR mappedResource ; /**< [out]: Mapped pointer corresponding to the registeredResource. This pointer must be used in NV_ENC_PIC_PARAMS::inputBuffer parameter in ::NvEncEncodePicture() API. */
NV_ENC_BUFFER_FORMAT mappedBufferFmt ; /**< [out]: Buffer format of the outputResource. This buffer format must be used in NV_ENC_PIC_PARAMS::bufferFmt if client using the above mapped resource pointer. */
uint32_t reserved1 [ 251 ] ; /**< [in]: Reserved and must be set to 0. */
void * reserved2 [ 63 ] ; /**< [in]: Reserved and must be set to NULL */
} NV_ENC_MAP_INPUT_RESOURCE ;
/** Macro for constructing the version field of ::_NV_ENC_MAP_INPUT_RESOURCE */
# define NV_ENC_MAP_INPUT_RESOURCE_VER NVENCAPI_STRUCT_VERSION(4)
/**
* \ struct _NV_ENC_INPUT_RESOURCE_OPENGL_TEX
* NV_ENC_REGISTER_RESOURCE : : resourceToRegister must be a pointer to a variable of this type ,
* when NV_ENC_REGISTER_RESOURCE : : resourceType is NV_ENC_INPUT_RESOURCE_TYPE_OPENGL_TEX
*/
typedef struct _NV_ENC_INPUT_RESOURCE_OPENGL_TEX
{
uint32_t texture ; /**< [in]: The name of the texture to be used. */
uint32_t target ; /**< [in]: Accepted values are GL_TEXTURE_RECTANGLE and GL_TEXTURE_2D. */
} NV_ENC_INPUT_RESOURCE_OPENGL_TEX ;
/**
* \ struct _NV_ENC_REGISTER_RESOURCE
* Register a resource for future use with the Nvidia Video Encoder Interface .
*/
typedef struct _NV_ENC_REGISTER_RESOURCE
{
uint32_t version ; /**< [in]: Struct version. Must be set to ::NV_ENC_REGISTER_RESOURCE_VER. */
NV_ENC_INPUT_RESOURCE_TYPE resourceType ; /**< [in]: Specifies the type of resource to be registered.
Supported values are
: : NV_ENC_INPUT_RESOURCE_TYPE_DIRECTX ,
: : NV_ENC_INPUT_RESOURCE_TYPE_CUDADEVICEPTR ,
: : NV_ENC_INPUT_RESOURCE_TYPE_OPENGL_TEX */
uint32_t width ; /**< [in]: Input buffer Width. */
uint32_t height ; /**< [in]: Input buffer Height. */
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uint32_t pitch ; /**< [in]: Input buffer Pitch.
For : : NV_ENC_INPUT_RESOURCE_TYPE_DIRECTX resources , set this to 0.
For : : NV_ENC_INPUT_RESOURCE_TYPE_CUDADEVICEPTR resources , set this to
the pitch as obtained from cuMemAllocPitch ( ) , or to the width in
bytes ( if this resource was created by using cuMemAlloc ( ) ) . This
value must be a multiple of 4.
For : : NV_ENC_INPUT_RESOURCE_TYPE_CUDAARRAY resources , set this to the
width of the allocation in bytes ( i . e .
CUDA_ARRAY3D_DESCRIPTOR : : Width * CUDA_ARRAY3D_DESCRIPTOR : : NumChannels ) .
For : : NV_ENC_INPUT_RESOURCE_TYPE_OPENGL_TEX resources , set this to the
texture width multiplied by the number of components in the texture
format . */
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uint32_t subResourceIndex ; /**< [in]: Subresource Index of the DirectX resource to be registered. Should be set to 0 for other interfaces. */
void * resourceToRegister ; /**< [in]: Handle to the resource that is being registered. */
NV_ENC_REGISTERED_PTR registeredResource ; /**< [out]: Registered resource handle. This should be used in future interactions with the Nvidia Video Encoder Interface. */
NV_ENC_BUFFER_FORMAT bufferFormat ; /**< [in]: Buffer format of resource to be registered. */
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NV_ENC_BUFFER_USAGE bufferUsage ; /**< [in]: Usage of resource to be registered. */
uint32_t reserved1 [ 247 ] ; /**< [in]: Reserved and must be set to 0. */
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void * reserved2 [ 62 ] ; /**< [in]: Reserved and must be set to NULL. */
} NV_ENC_REGISTER_RESOURCE ;
/** Macro for constructing the version field of ::_NV_ENC_REGISTER_RESOURCE */
# define NV_ENC_REGISTER_RESOURCE_VER NVENCAPI_STRUCT_VERSION(3)
/**
* \ struct _NV_ENC_STAT
* Encode Stats structure .
*/
typedef struct _NV_ENC_STAT
{
uint32_t version ; /**< [in]: Struct version. Must be set to ::NV_ENC_STAT_VER. */
uint32_t reserved ; /**< [in]: Reserved and must be set to 0 */
NV_ENC_OUTPUT_PTR outputBitStream ; /**< [out]: Specifies the pointer to output bitstream. */
uint32_t bitStreamSize ; /**< [out]: Size of generated bitstream in bytes. */
uint32_t picType ; /**< [out]: Picture type of encoded picture. See ::NV_ENC_PIC_TYPE. */
uint32_t lastValidByteOffset ; /**< [out]: Offset of last valid bytes of completed bitstream */
uint32_t sliceOffsets [ 16 ] ; /**< [out]: Offsets of each slice */
uint32_t picIdx ; /**< [out]: Picture number */
uint32_t reserved1 [ 233 ] ; /**< [in]: Reserved and must be set to 0 */
void * reserved2 [ 64 ] ; /**< [in]: Reserved and must be set to NULL */
} NV_ENC_STAT ;
/** Macro for constructing the version field of ::_NV_ENC_STAT */
# define NV_ENC_STAT_VER NVENCAPI_STRUCT_VERSION(1)
/**
* \ struct _NV_ENC_SEQUENCE_PARAM_PAYLOAD
* Sequence and picture paramaters payload .
*/
typedef struct _NV_ENC_SEQUENCE_PARAM_PAYLOAD
{
uint32_t version ; /**< [in]: Struct version. Must be set to ::NV_ENC_INITIALIZE_PARAMS_VER. */
uint32_t inBufferSize ; /**< [in]: Specifies the size of the spsppsBuffer provied by the client */
uint32_t spsId ; /**< [in]: Specifies the SPS id to be used in sequence header. Default value is 0. */
uint32_t ppsId ; /**< [in]: Specifies the PPS id to be used in picture header. Default value is 0. */
void * spsppsBuffer ; /**< [in]: Specifies bitstream header pointer of size NV_ENC_SEQUENCE_PARAM_PAYLOAD::inBufferSize. It is the client's responsibility to manage this memory. */
uint32_t * outSPSPPSPayloadSize ; /**< [out]: Size of the sequence and picture header in bytes written by the NvEncodeAPI interface to the SPSPPSBuffer. */
uint32_t reserved [ 250 ] ; /**< [in]: Reserved and must be set to 0 */
void * reserved2 [ 64 ] ; /**< [in]: Reserved and must be set to NULL */
} NV_ENC_SEQUENCE_PARAM_PAYLOAD ;
/** Macro for constructing the version field of ::_NV_ENC_SEQUENCE_PARAM_PAYLOAD */
# define NV_ENC_SEQUENCE_PARAM_PAYLOAD_VER NVENCAPI_STRUCT_VERSION(1)
/**
* Event registration / unregistration parameters .
*/
typedef struct _NV_ENC_EVENT_PARAMS
{
uint32_t version ; /**< [in]: Struct version. Must be set to ::NV_ENC_EVENT_PARAMS_VER. */
uint32_t reserved ; /**< [in]: Reserved and must be set to 0 */
void * completionEvent ; /**< [in]: Handle to event to be registered/unregistered with the NvEncodeAPI interface. */
uint32_t reserved1 [ 253 ] ; /**< [in]: Reserved and must be set to 0 */
void * reserved2 [ 64 ] ; /**< [in]: Reserved and must be set to NULL */
} NV_ENC_EVENT_PARAMS ;
/** Macro for constructing the version field of ::_NV_ENC_EVENT_PARAMS */
# define NV_ENC_EVENT_PARAMS_VER NVENCAPI_STRUCT_VERSION(1)
/**
* Encoder Session Creation parameters
*/
typedef struct _NV_ENC_OPEN_ENCODE_SESSIONEX_PARAMS
{
uint32_t version ; /**< [in]: Struct version. Must be set to ::NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS_VER. */
NV_ENC_DEVICE_TYPE deviceType ; /**< [in]: Specified the device Type */
void * device ; /**< [in]: Pointer to client device. */
void * reserved ; /**< [in]: Reserved and must be set to 0. */
uint32_t apiVersion ; /**< [in]: API version. Should be set to NVENCAPI_VERSION. */
uint32_t reserved1 [ 253 ] ; /**< [in]: Reserved and must be set to 0 */
void * reserved2 [ 64 ] ; /**< [in]: Reserved and must be set to NULL */
} NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS ;
/** Macro for constructing the version field of ::_NV_ENC_OPEN_ENCODE_SESSIONEX_PARAMS */
# define NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS_VER NVENCAPI_STRUCT_VERSION(1)
/** @} */ /* END ENCODER_STRUCTURE */
/**
* \ addtogroup ENCODE_FUNC NvEncodeAPI Functions
* @ {
*/
// NvEncOpenEncodeSession
/**
* \ brief Opens an encoding session .
*
* Deprecated .
*
* \ return
* : : NV_ENC_ERR_INVALID_CALL \ n
*
*/
NVENCSTATUS NVENCAPI NvEncOpenEncodeSession ( void * device , uint32_t deviceType , void * * encoder ) ;
// NvEncGetEncodeGuidCount
/**
* \ brief Retrieves the number of supported encode GUIDs .
*
* The function returns the number of codec guids supported by the NvEncodeAPI
* interface .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ out ] encodeGUIDCount
* Number of supported encode GUIDs .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncGetEncodeGUIDCount ( void * encoder , uint32_t * encodeGUIDCount ) ;
// NvEncGetEncodeGUIDs
/**
* \ brief Retrieves an array of supported encoder codec GUIDs .
*
* The function returns an array of codec guids supported by the NvEncodeAPI interface .
* The client must allocate an array where the NvEncodeAPI interface can
* fill the supported guids and pass the pointer in \ p * GUIDs parameter .
* The size of the array can be determined by using : : NvEncGetEncodeGUIDCount ( ) API .
* The Nvidia Encoding interface returns the number of codec guids it has actually
* filled in the guid array in the \ p GUIDCount parameter .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in ] guidArraySize
* Number of GUIDs to retrieved . Should be set to the number retrieved using
* : : NvEncGetEncodeGUIDCount .
* \ param [ out ] GUIDs
* Array of supported Encode GUIDs .
* \ param [ out ] GUIDCount
* Number of supported Encode GUIDs .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncGetEncodeGUIDs ( void * encoder , GUID * GUIDs , uint32_t guidArraySize , uint32_t * GUIDCount ) ;
// NvEncGetEncodeProfileGuidCount
/**
* \ brief Retrieves the number of supported profile GUIDs .
*
* The function returns the number of profile GUIDs supported for a given codec .
* The client must first enumerate the codec guids supported by the NvEncodeAPI
* interface . After determining the codec guid , it can query the NvEncodeAPI
* interface to determine the number of profile guids supported for a particular
* codec guid .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in ] encodeGUID
* The codec guid for which the profile guids are being enumerated .
* \ param [ out ] encodeProfileGUIDCount
* Number of encode profiles supported for the given encodeGUID .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncGetEncodeProfileGUIDCount ( void * encoder , GUID encodeGUID , uint32_t * encodeProfileGUIDCount ) ;
// NvEncGetEncodeProfileGUIDs
/**
* \ brief Retrieves an array of supported encode profile GUIDs .
*
* The function returns an array of supported profile guids for a particular
* codec guid . The client must allocate an array where the NvEncodeAPI interface
* can populate the profile guids . The client can determine the array size using
* : : NvEncGetEncodeProfileGUIDCount ( ) API . The client must also validiate that the
* NvEncodeAPI interface supports the GUID the client wants to pass as \ p encodeGUID
* parameter .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in ] encodeGUID
* The encode guid whose profile guids are being enumerated .
* \ param [ in ] guidArraySize
* Number of GUIDs to be retrieved . Should be set to the number retrieved using
* : : NvEncGetEncodeProfileGUIDCount .
* \ param [ out ] profileGUIDs
* Array of supported Encode Profile GUIDs
* \ param [ out ] GUIDCount
* Number of valid encode profile GUIDs in \ p profileGUIDs array .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncGetEncodeProfileGUIDs ( void * encoder , GUID encodeGUID , GUID * profileGUIDs , uint32_t guidArraySize , uint32_t * GUIDCount ) ;
// NvEncGetInputFormatCount
/**
* \ brief Retrieve the number of supported Input formats .
*
* The function returns the number of supported input formats . The client must
* query the NvEncodeAPI interface to determine the supported input formats
* before creating the input surfaces .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in ] encodeGUID
* Encode GUID , corresponding to which the number of supported input formats
* is to be retrieved .
* \ param [ out ] inputFmtCount
* Number of input formats supported for specified Encode GUID .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_GENERIC \ n
*/
NVENCSTATUS NVENCAPI NvEncGetInputFormatCount ( void * encoder , GUID encodeGUID , uint32_t * inputFmtCount ) ;
// NvEncGetInputFormats
/**
* \ brief Retrieves an array of supported Input formats
*
* Returns an array of supported input formats The client must use the input
* format to create input surface using : : NvEncCreateInputBuffer ( ) API .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in ] encodeGUID
* Encode GUID , corresponding to which the number of supported input formats
* is to be retrieved .
* \ param [ in ] inputFmtArraySize
* Size input format count array passed in \ p inputFmts .
* \ param [ out ] inputFmts
* Array of input formats supported for this Encode GUID .
* \ param [ out ] inputFmtCount
* The number of valid input format types returned by the NvEncodeAPI
* interface in \ p inputFmts array .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncGetInputFormats ( void * encoder , GUID encodeGUID , NV_ENC_BUFFER_FORMAT * inputFmts , uint32_t inputFmtArraySize , uint32_t * inputFmtCount ) ;
// NvEncGetEncodeCaps
/**
* \ brief Retrieves the capability value for a specified encoder attribute .
*
* The function returns the capability value for a given encoder attribute . The
* client must validate the encodeGUID using : : NvEncGetEncodeGUIDs ( ) API before
* calling this function . The encoder attribute being queried are enumerated in
* : : NV_ENC_CAPS_PARAM enum .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in ] encodeGUID
* Encode GUID , corresponding to which the capability attribute is to be retrieved .
* \ param [ in ] capsParam
* Used to specify attribute being queried . Refer : : NV_ENC_CAPS_PARAM for more
* details .
* \ param [ out ] capsVal
* The value corresponding to the capability attribute being queried .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_GENERIC \ n
*/
NVENCSTATUS NVENCAPI NvEncGetEncodeCaps ( void * encoder , GUID encodeGUID , NV_ENC_CAPS_PARAM * capsParam , int * capsVal ) ;
// NvEncGetEncodePresetCount
/**
* \ brief Retrieves the number of supported preset GUIDs .
*
* The function returns the number of preset GUIDs available for a given codec .
* The client must validate the codec guid using : : NvEncGetEncodeGUIDs ( ) API
* before calling this function .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in ] encodeGUID
* Encode GUID , corresponding to which the number of supported presets is to
* be retrieved .
* \ param [ out ] encodePresetGUIDCount
* Receives the number of supported preset GUIDs .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncGetEncodePresetCount ( void * encoder , GUID encodeGUID , uint32_t * encodePresetGUIDCount ) ;
// NvEncGetEncodePresetGUIDs
/**
* \ brief Receives an array of supported encoder preset GUIDs .
*
* The function returns an array of encode preset guids available for a given codec .
* The client can directly use one of the preset guids based upon the use case
* or target device . The preset guid chosen can be directly used in
* NV_ENC_INITIALIZE_PARAMS : : presetGUID parameter to : : NvEncEncodePicture ( ) API .
* Alternately client can also use the preset guid to retrieve the encoding config
* parameters being used by NvEncodeAPI interface for that given preset , using
* : : NvEncGetEncodePresetConfig ( ) API . It can then modify preset config parameters
* as per its use case and send it to NvEncodeAPI interface as part of
* NV_ENC_INITIALIZE_PARAMS : : encodeConfig parameter for NvEncInitializeEncoder ( )
* API .
*
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in ] encodeGUID
* Encode GUID , corresponding to which the list of supported presets is to be
* retrieved .
* \ param [ in ] guidArraySize
* Size of array of preset guids passed in \ p preset GUIDs
* \ param [ out ] presetGUIDs
* Array of supported Encode preset GUIDs from the NvEncodeAPI interface
* to client .
* \ param [ out ] encodePresetGUIDCount
* Receives the number of preset GUIDs returned by the NvEncodeAPI
* interface .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncGetEncodePresetGUIDs ( void * encoder , GUID encodeGUID , GUID * presetGUIDs , uint32_t guidArraySize , uint32_t * encodePresetGUIDCount ) ;
// NvEncGetEncodePresetConfig
/**
* \ brief Returns a preset config structure supported for given preset GUID .
*
* The function returns a preset config structure for a given preset guid . Before
* using this function the client must enumerate the preset guids available for
* a given codec . The preset config structure can be modified by the client depending
* upon its use case and can be then used to initialize the encoder using
* : : NvEncInitializeEncoder ( ) API . The client can use this function only if it
* wants to modify the NvEncodeAPI preset configuration , otherwise it can
* directly use the preset guid .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in ] encodeGUID
* Encode GUID , corresponding to which the list of supported presets is to be
* retrieved .
* \ param [ in ] presetGUID
* Preset GUID , corresponding to which the Encoding configurations is to be
* retrieved .
* \ param [ out ] presetConfig
* The requested Preset Encoder Attribute set . Refer : : _NV_ENC_CONFIG for
* more details .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_INVALID_VERSION \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncGetEncodePresetConfig ( void * encoder , GUID encodeGUID , GUID presetGUID , NV_ENC_PRESET_CONFIG * presetConfig ) ;
// NvEncInitializeEncoder
/**
* \ brief Initialize the encoder .
*
* This API must be used to initialize the encoder . The initialization parameter
* is passed using \ p * createEncodeParams The client must send the following
* fields of the _NV_ENC_INITIALIZE_PARAMS structure with a valid value .
* - NV_ENC_INITIALIZE_PARAMS : : encodeGUID
* - NV_ENC_INITIALIZE_PARAMS : : encodeWidth
* - NV_ENC_INITIALIZE_PARAMS : : encodeHeight
*
* The client can pass a preset guid directly to the NvEncodeAPI interface using
* NV_ENC_INITIALIZE_PARAMS : : presetGUID field . If the client doesn ' t pass
* NV_ENC_INITIALIZE_PARAMS : : encodeConfig structure , the codec specific parameters
* will be selected based on the preset guid . The preset guid must have been
* validated by the client using : : NvEncGetEncodePresetGUIDs ( ) API .
* If the client passes a custom : : _NV_ENC_CONFIG structure through
* NV_ENC_INITIALIZE_PARAMS : : encodeConfig , it will override the codec specific parameters
* based on the preset guid . It is recommended that even if the client passes a custom config ,
* it should also send a preset guid . In this case , the preset guid passed by the client
* will not override any of the custom config parameters programmed by the client ,
* it is only used as a hint by the NvEncodeAPI interface to determine certain encoder parameters
* which are not exposed to the client .
*
* There are two modes of operation for the encoder namely :
* - Asynchronous mode
* - Synchronous mode
*
* The client can select asynchronous or synchronous mode by setting the \ p
* enableEncodeAsync field in : : _NV_ENC_INITIALIZE_PARAMS to 1 or 0 respectively .
* \ par Asynchronous mode of operation :
* The Asynchronous mode can be enabled by setting NV_ENC_INITIALIZE_PARAMS : : enableEncodeAsync to 1.
* The client operating in asynchronous mode must allocate completion event object
* for each output buffer and pass the completion event object in the
* : : NvEncEncodePicture ( ) API . The client can create another thread and wait on
* the event object to be signalled by NvEncodeAPI interface on completion of the
* encoding process for the output frame . This should unblock the main thread from
* submitting work to the encoder . When the event is signalled the client can call
* NvEncodeAPI interfaces to copy the bitstream data using : : NvEncLockBitstream ( )
* API . This is the preferred mode of operation .
*
* NOTE : Asynchronous mode is not supported on Linux .
*
* \ par Synchronous mode of operation :
* The client can select synchronous mode by setting NV_ENC_INITIALIZE_PARAMS : : enableEncodeAsync to 0.
* The client working in synchronous mode can work in a single threaded or multi
* threaded mode . The client need not allocate any event objects . The client can
* only lock the bitstream data after NvEncodeAPI interface has returned
* : : NV_ENC_SUCCESS from encode picture . The NvEncodeAPI interface can return
* : : NV_ENC_ERR_NEED_MORE_INPUT error code from : : NvEncEncodePicture ( ) API . The
* client must not lock the output buffer in such case but should send the next
* frame for encoding . The client must keep on calling : : NvEncEncodePicture ( ) API
* until it returns : : NV_ENC_SUCCESS . \ n
* The client must always lock the bitstream data in order in which it has submitted .
* This is true for both asynchronous and synchronous mode .
*
* \ par Picture type decision :
* If the client is taking the picture type decision and it must disable the picture
* type decision module in NvEncodeAPI by setting NV_ENC_INITIALIZE_PARAMS : : enablePTD
* to 0. In this case the client is required to send the picture in encoding
* order to NvEncodeAPI by doing the re - ordering for B frames . \ n
* If the client doesn ' t want to take the picture type decision it can enable
* picture type decision module in the NvEncodeAPI interface by setting
* NV_ENC_INITIALIZE_PARAMS : : enablePTD to 1 and send the input pictures in display
* order .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in ] createEncodeParams
* Refer : : _NV_ENC_INITIALIZE_PARAMS for details .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_INVALID_VERSION \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncInitializeEncoder ( void * encoder , NV_ENC_INITIALIZE_PARAMS * createEncodeParams ) ;
// NvEncCreateInputBuffer
/**
* \ brief Allocates Input buffer .
*
* This function is used to allocate an input buffer . The client must enumerate
* the input buffer format before allocating the input buffer resources . The
* NV_ENC_INPUT_PTR returned by the NvEncodeAPI interface in the
* NV_ENC_CREATE_INPUT_BUFFER : : inputBuffer field can be directly used in
* : : NvEncEncodePicture ( ) API . The number of input buffers to be allocated by the
* client must be at least 4 more than the number of B frames being used for encoding .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in , out ] createInputBufferParams
* Pointer to the : : NV_ENC_CREATE_INPUT_BUFFER structure .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_INVALID_VERSION \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncCreateInputBuffer ( void * encoder , NV_ENC_CREATE_INPUT_BUFFER * createInputBufferParams ) ;
// NvEncDestroyInputBuffer
/**
* \ brief Release an input buffers .
*
* This function is used to free an input buffer . If the client has allocated
* any input buffer using : : NvEncCreateInputBuffer ( ) API , it must free those
* input buffers by calling this function . The client must release the input
* buffers before destroying the encoder using : : NvEncDestroyEncoder ( ) API .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in ] inputBuffer
* Pointer to the input buffer to be released .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_INVALID_VERSION \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncDestroyInputBuffer ( void * encoder , NV_ENC_INPUT_PTR inputBuffer ) ;
2019-11-28 11:47:34 +00:00
// NvEncSetIOCudaStreams
/**
* \ brief Set input and output CUDA stream for specified encoder attribute .
*
* Encoding may involve CUDA pre - processing on the input and post - processing on encoded output .
* This function is used to set input and output CUDA streams to pipeline the CUDA pre - processing
* and post - processing tasks . Clients should call this function before the call to
* NvEncUnlockInputBuffer ( ) . If this function is not called , the default CUDA stream is used for
* input and output processing . After a successful call to this function , the streams specified
* in that call will replace the previously - used streams .
* This API is supported for NVCUVID interface only .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in ] inputStream
* Pointer to CUstream which is used to process : : NV_ENC_PIC_PARAMS : : inputFrame for encode .
* In case of ME - only mode , inputStream is used to process : : NV_ENC_MEONLY_PARAMS : : inputBuffer and
* : : NV_ENC_MEONLY_PARAMS : : referenceFrame
* \ param [ in ] outputStream
* Pointer to CUstream which is used to process : : NV_ENC_PIC_PARAMS : : outputBuffer for encode .
* In case of ME - only mode , outputStream is used to process : : NV_ENC_MEONLY_PARAMS : : mvBuffer
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_INVALID_VERSION \ n
* : : NV_ENC_ERR_GENERIC \ n
*/
NVENCSTATUS NVENCAPI NvEncSetIOCudaStreams ( void * encoder , NV_ENC_CUSTREAM_PTR inputStream , NV_ENC_CUSTREAM_PTR outputStream ) ;
2018-11-22 01:57:00 +00:00
// NvEncCreateBitstreamBuffer
/**
* \ brief Allocates an output bitstream buffer
*
* This function is used to allocate an output bitstream buffer and returns a
* NV_ENC_OUTPUT_PTR to bitstream buffer to the client in the
* NV_ENC_CREATE_BITSTREAM_BUFFER : : bitstreamBuffer field .
* The client can only call this function after the encoder session has been
* initialized using : : NvEncInitializeEncoder ( ) API . The minimum number of output
* buffers allocated by the client must be at least 4 more than the number of B
* B frames being used for encoding . The client can only access the output
* bitsteam data by locking the \ p bitstreamBuffer using the : : NvEncLockBitstream ( )
* function .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in , out ] createBitstreamBufferParams
* Pointer : : NV_ENC_CREATE_BITSTREAM_BUFFER for details .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_INVALID_VERSION \ n
* : : NV_ENC_ERR_ENCODER_NOT_INITIALIZED \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncCreateBitstreamBuffer ( void * encoder , NV_ENC_CREATE_BITSTREAM_BUFFER * createBitstreamBufferParams ) ;
// NvEncDestroyBitstreamBuffer
/**
* \ brief Release a bitstream buffer .
*
* This function is used to release the output bitstream buffer allocated using
* the : : NvEncCreateBitstreamBuffer ( ) function . The client must release the output
* bitstreamBuffer using this function before destroying the encoder session .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in ] bitstreamBuffer
* Pointer to the bitstream buffer being released .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_INVALID_VERSION \ n
* : : NV_ENC_ERR_ENCODER_NOT_INITIALIZED \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncDestroyBitstreamBuffer ( void * encoder , NV_ENC_OUTPUT_PTR bitstreamBuffer ) ;
// NvEncEncodePicture
/**
* \ brief Submit an input picture for encoding .
*
* This function is used to submit an input picture buffer for encoding . The
* encoding parameters are passed using \ p * encodePicParams which is a pointer
* to the : : _NV_ENC_PIC_PARAMS structure .
*
* If the client has set NV_ENC_INITIALIZE_PARAMS : : enablePTD to 0 , then it must
* send a valid value for the following fields .
* - NV_ENC_PIC_PARAMS : : pictureType
* - NV_ENC_PIC_PARAMS_H264 : : displayPOCSyntax ( H264 only )
* - NV_ENC_PIC_PARAMS_H264 : : frameNumSyntax ( H264 only )
* - NV_ENC_PIC_PARAMS_H264 : : refPicFlag ( H264 only )
*
2019-11-28 11:47:34 +00:00
* \ par MVC Encoding :
* For MVC encoding the client must call encode picture api for each view separately
* and must pass valid view id in NV_ENC_PIC_PARAMS_MVC : : viewID field . Currently
* NvEncodeAPI only support stereo MVC so client must send viewID as 0 for base
* view and view ID as 1 for dependent view .
2018-11-22 01:57:00 +00:00
*
* \ par Asynchronous Encoding
* If the client has enabled asynchronous mode of encoding by setting
* NV_ENC_INITIALIZE_PARAMS : : enableEncodeAsync to 1 in the : : NvEncInitializeEncoder ( )
* API , then the client must send a valid NV_ENC_PIC_PARAMS : : completionEvent .
* Incase of asynchronous mode of operation , client can queue the : : NvEncEncodePicture ( )
* API commands from the main thread and then queue output buffers to be processed
* to a secondary worker thread . Before the locking the output buffers in the
* secondary thread , the client must wait on NV_ENC_PIC_PARAMS : : completionEvent
* it has queued in : : NvEncEncodePicture ( ) API call . The client must always process
* completion event and the output buffer in the same order in which they have been
* submitted for encoding . The NvEncodeAPI interface is responsible for any
* re - ordering required for B frames and will always ensure that encoded bitstream
* data is written in the same order in which output buffer is submitted .
* \ code
The below example shows how asynchronous encoding in case of 1 B frames
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Suppose the client allocated 4 input buffers ( I1 , I2 . . ) , 4 output buffers ( O1 , O2 . . )
and 4 completion events ( E1 , E2 , . . . ) . The NvEncodeAPI interface will need to
keep a copy of the input buffers for re - ordering and it allocates following
internal buffers ( NvI1 , NvI2 . . . ) . These internal buffers are managed by NvEncodeAPI
and the client is not responsible for the allocating or freeing the memory of
the internal buffers .
a ) The client main thread will queue the following encode frame calls .
Note the picture type is unknown to the client , the decision is being taken by
NvEncodeAPI interface . The client should pass : : _NV_ENC_PIC_PARAMS parameter
consisting of allocated input buffer , output buffer and output events in successive
: : NvEncEncodePicture ( ) API calls along with other required encode picture params .
For example :
1 st EncodePicture parameters - ( I1 , O1 , E1 )
2 nd EncodePicture parameters - ( I2 , O2 , E2 )
3 rd EncodePicture parameters - ( I3 , O3 , E3 )
b ) NvEncodeAPI SW will receive the following encode Commands from the client .
The left side shows input from client in the form ( Input buffer , Output Buffer ,
Output Event ) . The right hand side shows a possible picture type decision take by
the NvEncodeAPI interface .
( I1 , O1 , E1 ) - - - P1 Frame
( I2 , O2 , E2 ) - - - B2 Frame
( I3 , O3 , E3 ) - - - P3 Frame
c ) NvEncodeAPI interface will make a copy of the input buffers to its internal
buffersfor re - ordering . These copies are done as part of nvEncEncodePicture
function call from the client and NvEncodeAPI interface is responsible for
synchronization of copy operation with the actual encoding operation .
I1 - - > NvI1
I2 - - > NvI2
I3 - - > NvI3
d ) After returning from : : NvEncEncodePicture ( ) call , the client must queue the output
bitstream processing work to the secondary thread . The output bitstream processing
for asynchronous mode consist of first waiting on completion event ( E1 , E2 . . )
and then locking the output bitstream buffer ( O1 , O2 . . ) for reading the encoded
data . The work queued to the secondary thread by the client is in the following order
( I1 , O1 , E1 )
( I2 , O2 , E2 )
( I3 , O3 , E3 )
Note they are in the same order in which client calls : : NvEncEncodePicture ( ) API
in \ p step a ) .
e ) NvEncodeAPI interface will do the re - ordering such that Encoder HW will receive
the following encode commands :
( NvI1 , O1 , E1 ) - - - P1 Frame
( NvI3 , O2 , E2 ) - - - P3 Frame
( NvI2 , O3 , E3 ) - - - B2 frame
f ) After the encoding operations are completed , the events will be signalled
by NvEncodeAPI interface in the following order :
( O1 , E1 ) - - - P1 Frame , output bitstream copied to O1 and event E1 signalled .
( O2 , E2 ) - - - P3 Frame , output bitstream copied to O2 and event E2 signalled .
( O3 , E3 ) - - - B2 Frame , output bitstream copied to O3 and event E3 signalled .
g ) The client must lock the bitstream data using : : NvEncLockBitstream ( ) API in
the order O1 , O2 , O3 to read the encoded data , after waiting for the events
to be signalled in the same order i . e E1 , E2 and E3 . The output processing is
done in the secondary thread in the following order :
Waits on E1 , copies encoded bitstream from O1
Waits on E2 , copies encoded bitstream from O2
Waits on E3 , copies encoded bitstream from O3
- Note the client will receive the events signalling and output buffer in the
same order in which they have submitted for encoding .
- Note the LockBitstream will have picture type field which will notify the
output picture type to the clients .
- Note the input , output buffer and the output completion event are free to be
reused once NvEncodeAPI interfaced has signalled the event and the client has
copied the data from the output buffer .
* \ endcode
*
* \ par Synchronous Encoding
* The client can enable synchronous mode of encoding by setting
* NV_ENC_INITIALIZE_PARAMS : : enableEncodeAsync to 0 in : : NvEncInitializeEncoder ( ) API .
* The NvEncodeAPI interface may return : : NV_ENC_ERR_NEED_MORE_INPUT error code for
* some : : NvEncEncodePicture ( ) API calls when NV_ENC_INITIALIZE_PARAMS : : enablePTD
* is set to 1 , but the client must not treat it as a fatal error . The NvEncodeAPI
* interface might not be able to submit an input picture buffer for encoding
* immediately due to re - ordering for B frames . The NvEncodeAPI interface cannot
* submit the input picture which is decided to be encoded as B frame as it waits
* for backward reference from temporally subsequent frames . This input picture
* is buffered internally and waits for more input picture to arrive . The client
* must not call : : NvEncLockBitstream ( ) API on the output buffers whose
* : : NvEncEncodePicture ( ) API returns : : NV_ENC_ERR_NEED_MORE_INPUT . The client must
* wait for the NvEncodeAPI interface to return : : NV_ENC_SUCCESS before locking the
* output bitstreams to read the encoded bitstream data . The following example
* explains the scenario with synchronous encoding with 2 B frames .
* \ code
The below example shows how synchronous encoding works in case of 1 B frames
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Suppose the client allocated 4 input buffers ( I1 , I2 . . ) , 4 output buffers ( O1 , O2 . . )
and 4 completion events ( E1 , E2 , . . . ) . The NvEncodeAPI interface will need to
keep a copy of the input buffers for re - ordering and it allocates following
internal buffers ( NvI1 , NvI2 . . . ) . These internal buffers are managed by NvEncodeAPI
and the client is not responsible for the allocating or freeing the memory of
the internal buffers .
The client calls : : NvEncEncodePicture ( ) API with input buffer I1 and output buffer O1 .
The NvEncodeAPI decides to encode I1 as P frame and submits it to encoder
HW and returns : : NV_ENC_SUCCESS .
The client can now read the encoded data by locking the output O1 by calling
NvEncLockBitstream API .
The client calls : : NvEncEncodePicture ( ) API with input buffer I2 and output buffer O2 .
The NvEncodeAPI decides to encode I2 as B frame and buffers I2 by copying it
to internal buffer and returns : : NV_ENC_ERR_NEED_MORE_INPUT .
The error is not fatal and it notifies client that it cannot read the encoded
data by locking the output O2 by calling : : NvEncLockBitstream ( ) API without submitting
more work to the NvEncodeAPI interface .
The client calls : : NvEncEncodePicture ( ) with input buffer I3 and output buffer O3 .
The NvEncodeAPI decides to encode I3 as P frame and it first submits I3 for
encoding which will be used as backward reference frame for I2 .
The NvEncodeAPI then submits I2 for encoding and returns : : NV_ENC_SUCESS . Both
the submission are part of the same : : NvEncEncodePicture ( ) function call .
The client can now read the encoded data for both the frames by locking the output
O2 followed by O3 , by calling : : NvEncLockBitstream ( ) API .
The client must always lock the output in the same order in which it has submitted
to receive the encoded bitstream in correct encoding order .
* \ endcode
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in , out ] encodePicParams
* Pointer to the : : _NV_ENC_PIC_PARAMS structure .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_INVALID_VERSION \ n
* : : NV_ENC_ERR_ENCODER_BUSY \ n
* : : NV_ENC_ERR_NEED_MORE_INPUT \ n
* : : NV_ENC_ERR_ENCODER_NOT_INITIALIZED \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncEncodePicture ( void * encoder , NV_ENC_PIC_PARAMS * encodePicParams ) ;
// NvEncLockBitstream
/**
* \ brief Lock output bitstream buffer
*
* This function is used to lock the bitstream buffer to read the encoded data .
* The client can only access the encoded data by calling this function .
* The pointer to client accessible encoded data is returned in the
* NV_ENC_LOCK_BITSTREAM : : bitstreamBufferPtr field . The size of the encoded data
* in the output buffer is returned in the NV_ENC_LOCK_BITSTREAM : : bitstreamSizeInBytes
* The NvEncodeAPI interface also returns the output picture type and picture structure
* of the encoded frame in NV_ENC_LOCK_BITSTREAM : : pictureType and
* NV_ENC_LOCK_BITSTREAM : : pictureStruct fields respectively . If the client has
* set NV_ENC_LOCK_BITSTREAM : : doNotWait to 1 , the function might return
* : : NV_ENC_ERR_LOCK_BUSY if client is operating in synchronous mode . This is not
* a fatal failure if NV_ENC_LOCK_BITSTREAM : : doNotWait is set to 1. In the above case the client can
* retry the function after few milliseconds .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in , out ] lockBitstreamBufferParams
* Pointer to the : : _NV_ENC_LOCK_BITSTREAM structure .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_INVALID_VERSION \ n
* : : NV_ENC_ERR_LOCK_BUSY \ n
* : : NV_ENC_ERR_ENCODER_NOT_INITIALIZED \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncLockBitstream ( void * encoder , NV_ENC_LOCK_BITSTREAM * lockBitstreamBufferParams ) ;
// NvEncUnlockBitstream
/**
* \ brief Unlock the output bitstream buffer
*
* This function is used to unlock the output bitstream buffer after the client
* has read the encoded data from output buffer . The client must call this function
* to unlock the output buffer which it has previously locked using : : NvEncLockBitstream ( )
* function . Using a locked bitstream buffer in : : NvEncEncodePicture ( ) API will cause
* the function to fail .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in , out ] bitstreamBuffer
* bitstream buffer pointer being unlocked
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_ENCODER_NOT_INITIALIZED \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncUnlockBitstream ( void * encoder , NV_ENC_OUTPUT_PTR bitstreamBuffer ) ;
// NvLockInputBuffer
/**
* \ brief Locks an input buffer
*
* This function is used to lock the input buffer to load the uncompressed YUV
* pixel data into input buffer memory . The client must pass the NV_ENC_INPUT_PTR
* it had previously allocated using : : NvEncCreateInputBuffer ( ) in the
* NV_ENC_LOCK_INPUT_BUFFER : : inputBuffer field .
* The NvEncodeAPI interface returns pointer to client accessible input buffer
* memory in NV_ENC_LOCK_INPUT_BUFFER : : bufferDataPtr field .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in , out ] lockInputBufferParams
* Pointer to the : : _NV_ENC_LOCK_INPUT_BUFFER structure
*
* \ return
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_INVALID_VERSION \ n
* : : NV_ENC_ERR_LOCK_BUSY \ n
* : : NV_ENC_ERR_ENCODER_NOT_INITIALIZED \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncLockInputBuffer ( void * encoder , NV_ENC_LOCK_INPUT_BUFFER * lockInputBufferParams ) ;
// NvUnlockInputBuffer
/**
* \ brief Unlocks the input buffer
*
* This function is used to unlock the input buffer memory previously locked for
* uploading YUV pixel data . The input buffer must be unlocked before being used
* again for encoding , otherwise NvEncodeAPI will fail the : : NvEncEncodePicture ( )
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in ] inputBuffer
* Pointer to the input buffer that is being unlocked .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_VERSION \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_ENCODER_NOT_INITIALIZED \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*
*/
NVENCSTATUS NVENCAPI NvEncUnlockInputBuffer ( void * encoder , NV_ENC_INPUT_PTR inputBuffer ) ;
// NvEncGetEncodeStats
/**
* \ brief Get encoding statistics .
*
* This function is used to retrieve the encoding statistics .
* This API is not supported when encode device type is CUDA .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in , out ] encodeStats
* Pointer to the : : _NV_ENC_STAT structure .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_ENCODER_NOT_INITIALIZED \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncGetEncodeStats ( void * encoder , NV_ENC_STAT * encodeStats ) ;
// NvEncGetSequenceParams
/**
* \ brief Get encoded sequence and picture header .
*
* This function can be used to retrieve the sequence and picture header out of
* band . The client must call this function only after the encoder has been
* initialized using : : NvEncInitializeEncoder ( ) function . The client must
* allocate the memory where the NvEncodeAPI interface can copy the bitstream
* header and pass the pointer to the memory in NV_ENC_SEQUENCE_PARAM_PAYLOAD : : spsppsBuffer .
* The size of buffer is passed in the field NV_ENC_SEQUENCE_PARAM_PAYLOAD : : inBufferSize .
* The NvEncodeAPI interface will copy the bitstream header payload and returns
* the actual size of the bitstream header in the field
* NV_ENC_SEQUENCE_PARAM_PAYLOAD : : outSPSPPSPayloadSize .
* The client must call : : NvEncGetSequenceParams ( ) function from the same thread which is
* being used to call : : NvEncEncodePicture ( ) function .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in , out ] sequenceParamPayload
* Pointer to the : : _NV_ENC_SEQUENCE_PARAM_PAYLOAD structure .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_VERSION \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_ENCODER_NOT_INITIALIZED \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncGetSequenceParams ( void * encoder , NV_ENC_SEQUENCE_PARAM_PAYLOAD * sequenceParamPayload ) ;
// NvEncRegisterAsyncEvent
/**
* \ brief Register event for notification to encoding completion .
*
* This function is used to register the completion event with NvEncodeAPI
* interface . The event is required when the client has configured the encoder to
* work in asynchronous mode . In this mode the client needs to send a completion
* event with every output buffer . The NvEncodeAPI interface will signal the
* completion of the encoding process using this event . Only after the event is
* signalled the client can get the encoded data using : : NvEncLockBitstream ( ) function .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in ] eventParams
* Pointer to the : : _NV_ENC_EVENT_PARAMS structure .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_VERSION \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_ENCODER_NOT_INITIALIZED \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncRegisterAsyncEvent ( void * encoder , NV_ENC_EVENT_PARAMS * eventParams ) ;
// NvEncUnregisterAsyncEvent
/**
* \ brief Unregister completion event .
*
* This function is used to unregister completion event which has been previously
* registered using : : NvEncRegisterAsyncEvent ( ) function . The client must unregister
* all events before destroying the encoder using : : NvEncDestroyEncoder ( ) function .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in ] eventParams
* Pointer to the : : _NV_ENC_EVENT_PARAMS structure .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_VERSION \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_ENCODER_NOT_INITIALIZED \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncUnregisterAsyncEvent ( void * encoder , NV_ENC_EVENT_PARAMS * eventParams ) ;
// NvEncMapInputResource
/**
* \ brief Map an externally created input resource pointer for encoding .
*
* Maps an externally allocated input resource [ using and returns a NV_ENC_INPUT_PTR
* which can be used for encoding in the : : NvEncEncodePicture ( ) function . The
* mapped resource is returned in the field NV_ENC_MAP_INPUT_RESOURCE : : outputResourcePtr .
* The NvEncodeAPI interface also returns the buffer format of the mapped resource
* in the field NV_ENC_MAP_INPUT_RESOURCE : : outbufferFmt .
2019-08-07 14:03:15 +00:00
* This function provides synchronization guarantee that any graphics work submitted
* on the input buffer is completed before the buffer is used for encoding . This is
* also true for compute ( i . e . CUDA ) work , provided that the previous workload using
* the input resource was submitted to the default stream .
2018-11-22 01:57:00 +00:00
* The client should not access any input buffer while they are mapped by the encoder .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in , out ] mapInputResParams
* Pointer to the : : _NV_ENC_MAP_INPUT_RESOURCE structure .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_VERSION \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_ENCODER_NOT_INITIALIZED \ n
* : : NV_ENC_ERR_RESOURCE_NOT_REGISTERED \ n
* : : NV_ENC_ERR_MAP_FAILED \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncMapInputResource ( void * encoder , NV_ENC_MAP_INPUT_RESOURCE * mapInputResParams ) ;
// NvEncUnmapInputResource
/**
* \ brief UnMaps a NV_ENC_INPUT_PTR which was mapped for encoding
*
*
* UnMaps an input buffer which was previously mapped using : : NvEncMapInputResource ( )
* API . The mapping created using : : NvEncMapInputResource ( ) should be invalidated
* using this API before the external resource is destroyed by the client . The client
* must unmap the buffer after : : NvEncLockBitstream ( ) API returns succuessfully for encode
* work submitted using the mapped input buffer .
*
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in ] mappedInputBuffer
* Pointer to the NV_ENC_INPUT_PTR
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_VERSION \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_ENCODER_NOT_INITIALIZED \ n
* : : NV_ENC_ERR_RESOURCE_NOT_REGISTERED \ n
* : : NV_ENC_ERR_RESOURCE_NOT_MAPPED \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncUnmapInputResource ( void * encoder , NV_ENC_INPUT_PTR mappedInputBuffer ) ;
// NvEncDestroyEncoder
/**
* \ brief Destroy Encoding Session
*
* Destroys the encoder session previously created using : : NvEncOpenEncodeSession ( )
* function . The client must flush the encoder before freeing any resources . In order
* to flush the encoder the client must pass a NULL encode picture packet and either
* wait for the : : NvEncEncodePicture ( ) function to return in synchronous mode or wait
* for the flush event to be signaled by the encoder in asynchronous mode .
* The client must free all the input and output resources created using the
* NvEncodeAPI interface before destroying the encoder . If the client is operating
* in asynchronous mode , it must also unregister the completion events previously
* registered .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncDestroyEncoder ( void * encoder ) ;
// NvEncInvalidateRefFrames
/**
* \ brief Invalidate reference frames
*
* Invalidates reference frame based on the time stamp provided by the client .
* The encoder marks any reference frames or any frames which have been reconstructed
* using the corrupt frame as invalid for motion estimation and uses older reference
* frames for motion estimation . The encoded forces the current frame to be encoded
* as an intra frame if no reference frames are left after invalidation process .
* This is useful for low latency application for error resiliency . The client
* is recommended to set NV_ENC_CONFIG_H264 : : maxNumRefFrames to a large value so
* that encoder can keep a backup of older reference frames in the DPB and can use them
* for motion estimation when the newer reference frames have been invalidated .
* This API can be called multiple times .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in ] invalidRefFrameTimeStamp
* Timestamp of the invalid reference frames which needs to be invalidated .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncInvalidateRefFrames ( void * encoder , uint64_t invalidRefFrameTimeStamp ) ;
// NvEncOpenEncodeSessionEx
/**
* \ brief Opens an encoding session .
*
* Opens an encoding session and returns a pointer to the encoder interface in
* the \ p * * encoder parameter . The client should start encoding process by calling
* this API first .
* The client must pass a pointer to IDirect3DDevice9 device or CUDA context in the \ p * device parameter .
* For the OpenGL interface , \ p device must be NULL . An OpenGL context must be current when
* calling all NvEncodeAPI functions .
* If the creation of encoder session fails , the client must call : : NvEncDestroyEncoder API
* before exiting .
*
* \ param [ in ] openSessionExParams
* Pointer to a : : NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS structure .
* \ param [ out ] encoder
* Encode Session pointer to the NvEncodeAPI interface .
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_NO_ENCODE_DEVICE \ n
* : : NV_ENC_ERR_UNSUPPORTED_DEVICE \ n
* : : NV_ENC_ERR_INVALID_DEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncOpenEncodeSessionEx ( NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS * openSessionExParams , void * * encoder ) ;
// NvEncRegisterResource
/**
* \ brief Registers a resource with the Nvidia Video Encoder Interface .
*
* Registers a resource with the Nvidia Video Encoder Interface for book keeping .
* The client is expected to pass the registered resource handle as well , while calling : : NvEncMapInputResource API .
*
* \ param [ in ] encoder
* Pointer to the NVEncodeAPI interface .
*
* \ param [ in ] registerResParams
* Pointer to a : : _NV_ENC_REGISTER_RESOURCE structure
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_VERSION \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_ENCODER_NOT_INITIALIZED \ n
* : : NV_ENC_ERR_RESOURCE_REGISTER_FAILED \ n
* : : NV_ENC_ERR_GENERIC \ n
* : : NV_ENC_ERR_UNIMPLEMENTED \ n
*
*/
NVENCSTATUS NVENCAPI NvEncRegisterResource ( void * encoder , NV_ENC_REGISTER_RESOURCE * registerResParams ) ;
// NvEncUnregisterResource
/**
* \ brief Unregisters a resource previously registered with the Nvidia Video Encoder Interface .
*
* Unregisters a resource previously registered with the Nvidia Video Encoder Interface .
* The client is expected to unregister any resource that it has registered with the
* Nvidia Video Encoder Interface before destroying the resource .
*
* \ param [ in ] encoder
* Pointer to the NVEncodeAPI interface .
*
* \ param [ in ] registeredResource
* The registered resource pointer that was returned in : : NvEncRegisterResource .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_VERSION \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_ENCODER_NOT_INITIALIZED \ n
* : : NV_ENC_ERR_RESOURCE_NOT_REGISTERED \ n
* : : NV_ENC_ERR_GENERIC \ n
* : : NV_ENC_ERR_UNIMPLEMENTED \ n
*
*/
NVENCSTATUS NVENCAPI NvEncUnregisterResource ( void * encoder , NV_ENC_REGISTERED_PTR registeredResource ) ;
// NvEncReconfigureEncoder
/**
* \ brief Reconfigure an existing encoding session .
*
* Reconfigure an existing encoding session .
* The client should call this API to change / reconfigure the parameter passed during
* NvEncInitializeEncoder API call .
* Currently Reconfiguration of following are not supported .
* Change in GOP structure .
* Change in sync - Async mode .
* Change in MaxWidth & MaxHeight .
* Change in PTDmode .
*
* Resolution change is possible only if maxEncodeWidth & maxEncodeHeight of NV_ENC_INITIALIZE_PARAMS
* is set while creating encoder session .
*
* \ param [ in ] encoder
* Pointer to the NVEncodeAPI interface .
*
* \ param [ in ] reInitEncodeParams
* Pointer to a : : NV_ENC_RECONFIGURE_PARAMS structure .
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_NO_ENCODE_DEVICE \ n
* : : NV_ENC_ERR_UNSUPPORTED_DEVICE \ n
* : : NV_ENC_ERR_INVALID_DEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_GENERIC \ n
*
*/
NVENCSTATUS NVENCAPI NvEncReconfigureEncoder ( void * encoder , NV_ENC_RECONFIGURE_PARAMS * reInitEncodeParams ) ;
// NvEncCreateMVBuffer
/**
* \ brief Allocates output MV buffer for ME only mode .
*
* This function is used to allocate an output MV buffer . The size of the mvBuffer is
* dependent on the frame height and width of the last : : NvEncCreateInputBuffer ( ) call .
* The NV_ENC_OUTPUT_PTR returned by the NvEncodeAPI interface in the
* : : NV_ENC_CREATE_MV_BUFFER : : mvBuffer field should be used in
* : : NvEncRunMotionEstimationOnly ( ) API .
* Client must lock : : NV_ENC_CREATE_MV_BUFFER : : mvBuffer using : : NvEncLockBitstream ( ) API to get the motion vector data .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in , out ] createMVBufferParams
* Pointer to the : : NV_ENC_CREATE_MV_BUFFER structure .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_INVALID_VERSION \ n
* : : NV_ENC_ERR_GENERIC \ n
*/
NVENCSTATUS NVENCAPI NvEncCreateMVBuffer ( void * encoder , NV_ENC_CREATE_MV_BUFFER * createMVBufferParams ) ;
// NvEncDestroyMVBuffer
/**
* \ brief Release an output MV buffer for ME only mode .
*
* This function is used to release the output MV buffer allocated using
* the : : NvEncCreateMVBuffer ( ) function . The client must release the output
* mvBuffer using this function before destroying the encoder session .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in ] mvBuffer
* Pointer to the mvBuffer being released .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_INVALID_VERSION \ n
* : : NV_ENC_ERR_ENCODER_NOT_INITIALIZED \ n
* : : NV_ENC_ERR_GENERIC \ n
*/
NVENCSTATUS NVENCAPI NvEncDestroyMVBuffer ( void * encoder , NV_ENC_OUTPUT_PTR mvBuffer ) ;
// NvEncRunMotionEstimationOnly
/**
* \ brief Submit an input picture and reference frame for motion estimation in ME only mode .
*
* This function is used to submit the input frame and reference frame for motion
* estimation . The ME parameters are passed using * meOnlyParams which is a pointer
* to : : _NV_ENC_MEONLY_PARAMS structure .
* Client must lock : : NV_ENC_CREATE_MV_BUFFER : : mvBuffer using : : NvEncLockBitstream ( ) API to get the motion vector data .
* to get motion vector data .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
* \ param [ in ] meOnlyParams
* Pointer to the : : _NV_ENC_MEONLY_PARAMS structure .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
* : : NV_ENC_ERR_INVALID_ENCODERDEVICE \ n
* : : NV_ENC_ERR_DEVICE_NOT_EXIST \ n
* : : NV_ENC_ERR_UNSUPPORTED_PARAM \ n
* : : NV_ENC_ERR_OUT_OF_MEMORY \ n
* : : NV_ENC_ERR_INVALID_PARAM \ n
* : : NV_ENC_ERR_INVALID_VERSION \ n
* : : NV_ENC_ERR_NEED_MORE_INPUT \ n
* : : NV_ENC_ERR_ENCODER_NOT_INITIALIZED \ n
* : : NV_ENC_ERR_GENERIC \ n
*/
NVENCSTATUS NVENCAPI NvEncRunMotionEstimationOnly ( void * encoder , NV_ENC_MEONLY_PARAMS * meOnlyParams ) ;
// NvEncodeAPIGetMaxSupportedVersion
/**
* \ brief Get the largest NvEncodeAPI version supported by the driver .
*
* This function can be used by clients to determine if the driver supports
* the NvEncodeAPI header the application was compiled with .
*
* \ param [ out ] version
* Pointer to the requested value . The 4 least significant bits in the returned
* indicate the minor version and the rest of the bits indicate the major
* version of the largest supported version .
*
* \ return
* : : NV_ENC_SUCCESS \ n
* : : NV_ENC_ERR_INVALID_PTR \ n
*/
NVENCSTATUS NVENCAPI NvEncodeAPIGetMaxSupportedVersion ( uint32_t * version ) ;
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// NvEncodeAPIGetLastErrorString
/**
* \ brief Get the description of the last error reported by the API .
*
* This function returns a null - terminated string that can be used by clients to better understand the reason
* for failure of a previous API call .
*
* \ param [ in ] encoder
* Pointer to the NvEncodeAPI interface .
*
* \ return
* Pointer to buffer containing the details of the last error encountered by the API .
*/
const char * NVENCAPI NvEncGetLastErrorString ( void * encoder ) ;
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/// \cond API PFN
/*
* Defines API function pointers
*/
typedef NVENCSTATUS ( NVENCAPI * PNVENCOPENENCODESESSION ) ( void * device , uint32_t deviceType , void * * encoder ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCGETENCODEGUIDCOUNT ) ( void * encoder , uint32_t * encodeGUIDCount ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCGETENCODEGUIDS ) ( void * encoder , GUID * GUIDs , uint32_t guidArraySize , uint32_t * GUIDCount ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCGETENCODEPROFILEGUIDCOUNT ) ( void * encoder , GUID encodeGUID , uint32_t * encodeProfileGUIDCount ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCGETENCODEPROFILEGUIDS ) ( void * encoder , GUID encodeGUID , GUID * profileGUIDs , uint32_t guidArraySize , uint32_t * GUIDCount ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCGETINPUTFORMATCOUNT ) ( void * encoder , GUID encodeGUID , uint32_t * inputFmtCount ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCGETINPUTFORMATS ) ( void * encoder , GUID encodeGUID , NV_ENC_BUFFER_FORMAT * inputFmts , uint32_t inputFmtArraySize , uint32_t * inputFmtCount ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCGETENCODECAPS ) ( void * encoder , GUID encodeGUID , NV_ENC_CAPS_PARAM * capsParam , int * capsVal ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCGETENCODEPRESETCOUNT ) ( void * encoder , GUID encodeGUID , uint32_t * encodePresetGUIDCount ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCGETENCODEPRESETGUIDS ) ( void * encoder , GUID encodeGUID , GUID * presetGUIDs , uint32_t guidArraySize , uint32_t * encodePresetGUIDCount ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCGETENCODEPRESETCONFIG ) ( void * encoder , GUID encodeGUID , GUID presetGUID , NV_ENC_PRESET_CONFIG * presetConfig ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCINITIALIZEENCODER ) ( void * encoder , NV_ENC_INITIALIZE_PARAMS * createEncodeParams ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCCREATEINPUTBUFFER ) ( void * encoder , NV_ENC_CREATE_INPUT_BUFFER * createInputBufferParams ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCDESTROYINPUTBUFFER ) ( void * encoder , NV_ENC_INPUT_PTR inputBuffer ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCCREATEBITSTREAMBUFFER ) ( void * encoder , NV_ENC_CREATE_BITSTREAM_BUFFER * createBitstreamBufferParams ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCDESTROYBITSTREAMBUFFER ) ( void * encoder , NV_ENC_OUTPUT_PTR bitstreamBuffer ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCENCODEPICTURE ) ( void * encoder , NV_ENC_PIC_PARAMS * encodePicParams ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCLOCKBITSTREAM ) ( void * encoder , NV_ENC_LOCK_BITSTREAM * lockBitstreamBufferParams ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCUNLOCKBITSTREAM ) ( void * encoder , NV_ENC_OUTPUT_PTR bitstreamBuffer ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCLOCKINPUTBUFFER ) ( void * encoder , NV_ENC_LOCK_INPUT_BUFFER * lockInputBufferParams ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCUNLOCKINPUTBUFFER ) ( void * encoder , NV_ENC_INPUT_PTR inputBuffer ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCGETENCODESTATS ) ( void * encoder , NV_ENC_STAT * encodeStats ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCGETSEQUENCEPARAMS ) ( void * encoder , NV_ENC_SEQUENCE_PARAM_PAYLOAD * sequenceParamPayload ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCREGISTERASYNCEVENT ) ( void * encoder , NV_ENC_EVENT_PARAMS * eventParams ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCUNREGISTERASYNCEVENT ) ( void * encoder , NV_ENC_EVENT_PARAMS * eventParams ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCMAPINPUTRESOURCE ) ( void * encoder , NV_ENC_MAP_INPUT_RESOURCE * mapInputResParams ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCUNMAPINPUTRESOURCE ) ( void * encoder , NV_ENC_INPUT_PTR mappedInputBuffer ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCDESTROYENCODER ) ( void * encoder ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCINVALIDATEREFFRAMES ) ( void * encoder , uint64_t invalidRefFrameTimeStamp ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCOPENENCODESESSIONEX ) ( NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS * openSessionExParams , void * * encoder ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCREGISTERRESOURCE ) ( void * encoder , NV_ENC_REGISTER_RESOURCE * registerResParams ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCUNREGISTERRESOURCE ) ( void * encoder , NV_ENC_REGISTERED_PTR registeredRes ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCRECONFIGUREENCODER ) ( void * encoder , NV_ENC_RECONFIGURE_PARAMS * reInitEncodeParams ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCCREATEMVBUFFER ) ( void * encoder , NV_ENC_CREATE_MV_BUFFER * createMVBufferParams ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCDESTROYMVBUFFER ) ( void * encoder , NV_ENC_OUTPUT_PTR mvBuffer ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCRUNMOTIONESTIMATIONONLY ) ( void * encoder , NV_ENC_MEONLY_PARAMS * meOnlyParams ) ;
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typedef const char * ( NVENCAPI * PNVENCGETLASTERROR ) ( void * encoder ) ;
typedef NVENCSTATUS ( NVENCAPI * PNVENCSETIOCUDASTREAMS ) ( void * encoder , NV_ENC_CUSTREAM_PTR inputStream , NV_ENC_CUSTREAM_PTR outputStream ) ;
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/// \endcond
/** @} */ /* END ENCODE_FUNC */
/**
* \ ingroup ENCODER_STRUCTURE
* NV_ENCODE_API_FUNCTION_LIST
*/
typedef struct _NV_ENCODE_API_FUNCTION_LIST
{
uint32_t version ; /**< [in]: Client should pass NV_ENCODE_API_FUNCTION_LIST_VER. */
uint32_t reserved ; /**< [in]: Reserved and should be set to 0. */
PNVENCOPENENCODESESSION nvEncOpenEncodeSession ; /**< [out]: Client should access ::NvEncOpenEncodeSession() API through this pointer. */
PNVENCGETENCODEGUIDCOUNT nvEncGetEncodeGUIDCount ; /**< [out]: Client should access ::NvEncGetEncodeGUIDCount() API through this pointer. */
PNVENCGETENCODEPRESETCOUNT nvEncGetEncodeProfileGUIDCount ; /**< [out]: Client should access ::NvEncGetEncodeProfileGUIDCount() API through this pointer.*/
PNVENCGETENCODEPRESETGUIDS nvEncGetEncodeProfileGUIDs ; /**< [out]: Client should access ::NvEncGetEncodeProfileGUIDs() API through this pointer. */
PNVENCGETENCODEGUIDS nvEncGetEncodeGUIDs ; /**< [out]: Client should access ::NvEncGetEncodeGUIDs() API through this pointer. */
PNVENCGETINPUTFORMATCOUNT nvEncGetInputFormatCount ; /**< [out]: Client should access ::NvEncGetInputFormatCount() API through this pointer. */
PNVENCGETINPUTFORMATS nvEncGetInputFormats ; /**< [out]: Client should access ::NvEncGetInputFormats() API through this pointer. */
PNVENCGETENCODECAPS nvEncGetEncodeCaps ; /**< [out]: Client should access ::NvEncGetEncodeCaps() API through this pointer. */
PNVENCGETENCODEPRESETCOUNT nvEncGetEncodePresetCount ; /**< [out]: Client should access ::NvEncGetEncodePresetCount() API through this pointer. */
PNVENCGETENCODEPRESETGUIDS nvEncGetEncodePresetGUIDs ; /**< [out]: Client should access ::NvEncGetEncodePresetGUIDs() API through this pointer. */
PNVENCGETENCODEPRESETCONFIG nvEncGetEncodePresetConfig ; /**< [out]: Client should access ::NvEncGetEncodePresetConfig() API through this pointer. */
PNVENCINITIALIZEENCODER nvEncInitializeEncoder ; /**< [out]: Client should access ::NvEncInitializeEncoder() API through this pointer. */
PNVENCCREATEINPUTBUFFER nvEncCreateInputBuffer ; /**< [out]: Client should access ::NvEncCreateInputBuffer() API through this pointer. */
PNVENCDESTROYINPUTBUFFER nvEncDestroyInputBuffer ; /**< [out]: Client should access ::NvEncDestroyInputBuffer() API through this pointer. */
PNVENCCREATEBITSTREAMBUFFER nvEncCreateBitstreamBuffer ; /**< [out]: Client should access ::NvEncCreateBitstreamBuffer() API through this pointer. */
PNVENCDESTROYBITSTREAMBUFFER nvEncDestroyBitstreamBuffer ; /**< [out]: Client should access ::NvEncDestroyBitstreamBuffer() API through this pointer. */
PNVENCENCODEPICTURE nvEncEncodePicture ; /**< [out]: Client should access ::NvEncEncodePicture() API through this pointer. */
PNVENCLOCKBITSTREAM nvEncLockBitstream ; /**< [out]: Client should access ::NvEncLockBitstream() API through this pointer. */
PNVENCUNLOCKBITSTREAM nvEncUnlockBitstream ; /**< [out]: Client should access ::NvEncUnlockBitstream() API through this pointer. */
PNVENCLOCKINPUTBUFFER nvEncLockInputBuffer ; /**< [out]: Client should access ::NvEncLockInputBuffer() API through this pointer. */
PNVENCUNLOCKINPUTBUFFER nvEncUnlockInputBuffer ; /**< [out]: Client should access ::NvEncUnlockInputBuffer() API through this pointer. */
PNVENCGETENCODESTATS nvEncGetEncodeStats ; /**< [out]: Client should access ::NvEncGetEncodeStats() API through this pointer. */
PNVENCGETSEQUENCEPARAMS nvEncGetSequenceParams ; /**< [out]: Client should access ::NvEncGetSequenceParams() API through this pointer. */
PNVENCREGISTERASYNCEVENT nvEncRegisterAsyncEvent ; /**< [out]: Client should access ::NvEncRegisterAsyncEvent() API through this pointer. */
PNVENCUNREGISTERASYNCEVENT nvEncUnregisterAsyncEvent ; /**< [out]: Client should access ::NvEncUnregisterAsyncEvent() API through this pointer. */
PNVENCMAPINPUTRESOURCE nvEncMapInputResource ; /**< [out]: Client should access ::NvEncMapInputResource() API through this pointer. */
PNVENCUNMAPINPUTRESOURCE nvEncUnmapInputResource ; /**< [out]: Client should access ::NvEncUnmapInputResource() API through this pointer. */
PNVENCDESTROYENCODER nvEncDestroyEncoder ; /**< [out]: Client should access ::NvEncDestroyEncoder() API through this pointer. */
PNVENCINVALIDATEREFFRAMES nvEncInvalidateRefFrames ; /**< [out]: Client should access ::NvEncInvalidateRefFrames() API through this pointer. */
PNVENCOPENENCODESESSIONEX nvEncOpenEncodeSessionEx ; /**< [out]: Client should access ::NvEncOpenEncodeSession() API through this pointer. */
PNVENCREGISTERRESOURCE nvEncRegisterResource ; /**< [out]: Client should access ::NvEncRegisterResource() API through this pointer. */
PNVENCUNREGISTERRESOURCE nvEncUnregisterResource ; /**< [out]: Client should access ::NvEncUnregisterResource() API through this pointer. */
PNVENCRECONFIGUREENCODER nvEncReconfigureEncoder ; /**< [out]: Client should access ::NvEncReconfigureEncoder() API through this pointer. */
void * reserved1 ;
PNVENCCREATEMVBUFFER nvEncCreateMVBuffer ; /**< [out]: Client should access ::NvEncCreateMVBuffer API through this pointer. */
PNVENCDESTROYMVBUFFER nvEncDestroyMVBuffer ; /**< [out]: Client should access ::NvEncDestroyMVBuffer API through this pointer. */
PNVENCRUNMOTIONESTIMATIONONLY nvEncRunMotionEstimationOnly ; /**< [out]: Client should access ::NvEncRunMotionEstimationOnly API through this pointer. */
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PNVENCGETLASTERROR nvEncGetLastErrorString ; /**< [out]: Client should access ::nvEncGetLastErrorString API through this pointer. */
PNVENCSETIOCUDASTREAMS nvEncSetIOCudaStreams ; /**< [out]: Client should access ::nvEncSetIOCudaStreams API through this pointer. */
void * reserved2 [ 279 ] ; /**< [in]: Reserved and must be set to NULL */
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} NV_ENCODE_API_FUNCTION_LIST ;
/** Macro for constructing the version field of ::_NV_ENCODEAPI_FUNCTION_LIST. */
# define NV_ENCODE_API_FUNCTION_LIST_VER NVENCAPI_STRUCT_VERSION(2)
// NvEncodeAPICreateInstance
/**
* \ ingroup ENCODE_FUNC
* Entry Point to the NvEncodeAPI interface .
*
* Creates an instance of the NvEncodeAPI interface , and populates the
* pFunctionList with function pointers to the API routines implemented by the
* NvEncodeAPI interface .
*
* \ param [ out ] functionList
*
* \ return
* : : NV_ENC_SUCCESS
* : : NV_ENC_ERR_INVALID_PTR
*/
NVENCSTATUS NVENCAPI NvEncodeAPICreateInstance ( NV_ENCODE_API_FUNCTION_LIST * functionList ) ;
# ifdef __cplusplus
}
# endif
# endif
