nvenc.c File Reference

#include "config.h"
#include "config_components.h"
#include "nvenc.h"
#include "hevc/sei.h"
#include "libavutil/hwcontext_cuda.h"
#include "libavutil/hwcontext.h"
#include "libavutil/cuda_check.h"
#include "libavutil/imgutils.h"
#include "libavutil/mem.h"
#include "libavutil/pixdesc.h"
#include "libavutil/timecode_internal.h"
#include "libavutil/mathematics.h"
#include "libavutil/mastering_display_metadata.h"
#include "libavutil/stereo3d.h"
#include "libavutil/tdrdi.h"
#include "atsc_a53.h"
#include "codec_desc.h"
#include "encode.h"
#include "internal.h"

Go to the source code of this file.

Data Structures
struct	GUIDTuple

Macros
#define	CHECK_CU(x)
#define	NVENC_CAP   0x30
#define	IS_CBR(rc)
#define	IS_10BIT(pix_fmt)
#define	IS_RGB(pix_fmt)
#define	IS_YUV444(pix_fmt)
#define	IS_YUV422(pix_fmt)
#define	IS_HWACCEL(pix_fmt)
#define	IS_GBRP(pix_fmt)
#define	PRESET_ALIAS(alias, name, ...)
#define	PRESET(name, ...)
#define	to_nv_color_matrix(n)
#define	to_nv_color_pri(n)
#define	to_nv_color_trc(n)

Functions
static int	nvenc_map_error (NVENCSTATUS err, const char **desc)
static int	nvenc_print_error (AVCodecContext *avctx, NVENCSTATUS err, const char *error_string)
static void	nvenc_map_preset (NvencContext *ctx)
static void	nvenc_print_driver_requirement (AVCodecContext *avctx, int level)
static av_cold int	nvenc_load_libraries (AVCodecContext *avctx)
static int	nvenc_push_context (AVCodecContext *avctx)
static int	nvenc_pop_context (AVCodecContext *avctx)
static av_cold int	nvenc_open_session (AVCodecContext *avctx)
static int	nvenc_check_codec_support (AVCodecContext *avctx)
static int	nvenc_check_cap (AVCodecContext *avctx, NV_ENC_CAPS cap)
static int	nvenc_check_capabilities (AVCodecContext *avctx)
static av_cold int	nvenc_check_device (AVCodecContext *avctx, int idx)
static av_cold int	nvenc_setup_device (AVCodecContext *avctx)
static av_cold void	set_constqp (AVCodecContext *avctx)
static av_cold void	set_vbr (AVCodecContext *avctx)
static av_cold void	set_lossless (AVCodecContext *avctx)
static void	nvenc_override_rate_control (AVCodecContext *avctx)
static av_cold int	nvenc_recalc_surfaces (AVCodecContext *avctx)
static av_cold int	nvenc_setup_rate_control (AVCodecContext *avctx)
static av_cold int	nvenc_setup_h264_config (AVCodecContext *avctx)
static av_cold int	nvenc_setup_hevc_config (AVCodecContext *avctx)
static av_cold int	nvenc_setup_codec_config (AVCodecContext *avctx)
static void	compute_dar (AVCodecContext *avctx, int *dw, int *dh)
static av_cold int	nvenc_setup_encoder (AVCodecContext *avctx)
static NV_ENC_BUFFER_FORMAT	nvenc_map_buffer_format (enum AVPixelFormat pix_fmt)
static av_cold int	nvenc_alloc_surface (AVCodecContext *avctx, int idx)
static av_cold int	nvenc_setup_surfaces (AVCodecContext *avctx)
static av_cold int	nvenc_setup_extradata (AVCodecContext *avctx)
av_cold int	ff_nvenc_encode_close (AVCodecContext *avctx)
av_cold int	ff_nvenc_encode_init (AVCodecContext *avctx)
static NvencSurface *	get_free_frame (NvencContext *ctx)
static int	nvenc_copy_frame (AVCodecContext *avctx, NvencSurface *nv_surface, NV_ENC_LOCK_INPUT_BUFFER *lock_buffer_params, const AVFrame *frame)
static int	nvenc_find_free_reg_resource (AVCodecContext *avctx)
static int	nvenc_register_frame (AVCodecContext *avctx, const AVFrame *frame)
static int	nvenc_upload_frame (AVCodecContext *avctx, const AVFrame *frame, NvencSurface *nvenc_frame)
static void	nvenc_codec_specific_pic_params (AVCodecContext *avctx, const AVFrame *frame, NV_ENC_PIC_PARAMS *params, NV_ENC_SEI_PAYLOAD *sei_data, int sei_count)
static void	timestamp_queue_enqueue (AVFifo *queue, int64_t timestamp)
static int64_t	timestamp_queue_dequeue (AVFifo *queue)
static int64_t	timestamp_queue_peek (AVFifo *queue, size_t index)
static int	nvenc_set_timestamp (AVCodecContext *avctx, NV_ENC_LOCK_BITSTREAM *params, AVPacket *pkt)
static int	nvenc_store_frame_data (AVCodecContext *avctx, NV_ENC_PIC_PARAMS *pic_params, const AVFrame *frame)
static int	nvenc_retrieve_frame_data (AVCodecContext *avctx, NV_ENC_LOCK_BITSTREAM *lock_params, AVPacket *pkt)
static int	process_output_surface (AVCodecContext *avctx, AVPacket *pkt, NvencSurface *tmpoutsurf)
static int	output_ready (AVCodecContext *avctx, int flush)
static int	prepare_sei_data_array (AVCodecContext *avctx, const AVFrame *frame)
static void	reconfig_encoder (AVCodecContext *avctx, const AVFrame *frame)
static int	nvenc_send_frame (AVCodecContext *avctx, const AVFrame *frame)
int	ff_nvenc_receive_packet (AVCodecContext *avctx, AVPacket *pkt)
av_cold void	ff_nvenc_encode_flush (AVCodecContext *avctx)

Variables
enum AVPixelFormat	ff_nvenc_pix_fmts []
const AVCodecHWConfigInternal *const	ff_nvenc_hw_configs []
struct {
NVENCSTATUS   nverr
int   averr
const char *   desc
}	nvenc_errors []

Macro Definition Documentation

CHECK_CU

#define CHECK_CU

(

x

)

Value:

FF_CUDA_CHECK_DL(avctx, dl_fn->cuda_dl, x)

Definition at line 47 of file nvenc.c.

Referenced by ff_nvenc_encode_close(), nvenc_check_device(), nvenc_pop_context(), nvenc_push_context(), and nvenc_setup_device().

NVENC_CAP

#define NVENC_CAP   0x30

Definition at line 49 of file nvenc.c.

Referenced by nvenc_check_device().

IS_CBR

#define IS_CBR

(

rc

)

Value:

(rc == NV_ENC_PARAMS_RC_CBR)

Definition at line 51 of file nvenc.c.

Referenced by nvenc_setup_h264_config(), and nvenc_setup_hevc_config().

IS_10BIT

#define IS_10BIT

(

pix_fmt

)

Value:

                            (pix_fmt == AV_PIX_FMT_P010         || \
                            pix_fmt == AV_PIX_FMT_P012         || \
                            pix_fmt == AV_PIX_FMT_P016         || \
                            pix_fmt == AV_PIX_FMT_P210         || \
                            pix_fmt == AV_PIX_FMT_P212         || \
                            pix_fmt == AV_PIX_FMT_P216         || \
                            pix_fmt == AV_PIX_FMT_YUV444P10MSB || \
                            pix_fmt == AV_PIX_FMT_YUV444P12MSB || \
                            pix_fmt == AV_PIX_FMT_YUV444P16    || \
                            pix_fmt == AV_PIX_FMT_P410         || \
                            pix_fmt == AV_PIX_FMT_P412         || \
                            pix_fmt == AV_PIX_FMT_P416         || \
                            pix_fmt == AV_PIX_FMT_X2RGB10      || \
                            pix_fmt == AV_PIX_FMT_X2BGR10      || \
                            pix_fmt == AV_PIX_FMT_GBRP10MSB    || \
                            pix_fmt == AV_PIX_FMT_GBRP16)

Definition at line 105 of file nvenc.c.

Referenced by nvenc_check_capabilities(), nvenc_setup_h264_config(), and nvenc_setup_hevc_config().

IS_RGB

#define IS_RGB

(

pix_fmt

)

Value:

                            (pix_fmt == AV_PIX_FMT_0RGB32  || \
                            pix_fmt == AV_PIX_FMT_RGB32   || \
                            pix_fmt == AV_PIX_FMT_0BGR32  || \
                            pix_fmt == AV_PIX_FMT_BGR32   || \
                            pix_fmt == AV_PIX_FMT_X2RGB10 || \
                            pix_fmt == AV_PIX_FMT_X2BGR10)

Definition at line 122 of file nvenc.c.

Referenced by ff_nvenc_encode_init().

IS_YUV444

#define IS_YUV444

(

pix_fmt

)

Value:

                            (pix_fmt == AV_PIX_FMT_YUV444P      || \
                            pix_fmt == AV_PIX_FMT_NV24         || \
                            pix_fmt == AV_PIX_FMT_YUV444P10MSB || \
                            pix_fmt == AV_PIX_FMT_YUV444P12MSB || \
                            pix_fmt == AV_PIX_FMT_YUV444P16    || \
                            pix_fmt == AV_PIX_FMT_P410         || \
                            pix_fmt == AV_PIX_FMT_P412         || \
                            pix_fmt == AV_PIX_FMT_P416         || \
                            pix_fmt == AV_PIX_FMT_GBRP         || \
                            pix_fmt == AV_PIX_FMT_GBRP10MSB    || \
                            pix_fmt == AV_PIX_FMT_GBRP16       || \
                            (ctx->rgb_mode == NVENC_RGB_MODE_444 && IS_RGB(pix_fmt)))

Definition at line 129 of file nvenc.c.

Referenced by nvenc_check_capabilities(), nvenc_setup_h264_config(), and nvenc_setup_hevc_config().

IS_YUV422

#define IS_YUV422

(

pix_fmt

)

Value:

                            (pix_fmt == AV_PIX_FMT_NV16 || \
                            pix_fmt == AV_PIX_FMT_P210 || \
                            pix_fmt == AV_PIX_FMT_P212 || \
                            pix_fmt == AV_PIX_FMT_P216)

Definition at line 142 of file nvenc.c.

Referenced by nvenc_check_capabilities(), nvenc_setup_h264_config(), and nvenc_setup_hevc_config().

IS_HWACCEL

#define IS_HWACCEL

(

pix_fmt

)

Value:

                             (pix_fmt == AV_PIX_FMT_CUDA    || \
                             pix_fmt == AV_PIX_FMT_CUARRAY  || \
                             pix_fmt == AV_PIX_FMT_D3D11)

Definition at line 147 of file nvenc.c.

Referenced by ff_nvenc_encode_close(), ff_nvenc_encode_init(), nvenc_alloc_surface(), nvenc_setup_device(), nvenc_upload_frame(), and process_output_surface().

IS_GBRP

#define IS_GBRP

(

pix_fmt

)

Value:

                          (pix_fmt == AV_PIX_FMT_GBRP      || \
                          pix_fmt == AV_PIX_FMT_GBRP10MSB || \
                          pix_fmt == AV_PIX_FMT_GBRP16)

Definition at line 151 of file nvenc.c.

Referenced by nvenc_setup_h264_config(), and nvenc_setup_hevc_config().

PRESET_ALIAS

#define PRESET_ALIAS	(		alias,
			name,
			... )

Value:

    [PRESET_ ## alias] = { NV_ENC_PRESET_ ## name ## _GUID, __VA_ARGS__ }

Definition at line 225 of file nvenc.c.

Referenced by nvenc_map_preset().

PRESET

#define PRESET	(		name,
			... )

Value:

PRESET_ALIAS(name, name, __VA_ARGS__)

Definition at line 228 of file nvenc.c.

Referenced by nvenc_map_preset().

to_nv_color_matrix

#define to_nv_color_matrix

(

n

)

Value:

(uint32_t)(n)

Definition at line 298 of file nvenc.c.

Referenced by nvenc_setup_h264_config(), and nvenc_setup_hevc_config().

to_nv_color_pri

#define to_nv_color_pri

(

n

)

Value:

(uint32_t)(n)

Definition at line 299 of file nvenc.c.

Referenced by nvenc_setup_h264_config(), and nvenc_setup_hevc_config().

to_nv_color_trc

#define to_nv_color_trc

(

n

)

Value:

(uint32_t)(n)

Definition at line 300 of file nvenc.c.

Referenced by nvenc_setup_h264_config(), and nvenc_setup_hevc_config().

Function Documentation

nvenc_map_error()

static int nvenc_map_error ( NVENCSTATUS err, const char ** desc )

static

Definition at line 188 of file nvenc.c.

Referenced by nvenc_print_error().

nvenc_print_error()

static int nvenc_print_error ( AVCodecContext * avctx, NVENCSTATUS err, const char * error_string )

static

Definition at line 203 of file nvenc.c.

Referenced by nvenc_alloc_surface(), nvenc_find_free_reg_resource(), nvenc_load_libraries(), nvenc_open_session(), nvenc_register_frame(), nvenc_send_frame(), nvenc_setup_encoder(), nvenc_setup_extradata(), nvenc_upload_frame(), process_output_surface(), and reconfig_encoder().

nvenc_map_preset()

static void nvenc_map_preset ( NvencContext * ctx )

static

Definition at line 230 of file nvenc.c.

Referenced by nvenc_setup_device().

nvenc_print_driver_requirement()

static void nvenc_print_driver_requirement ( AVCodecContext * avctx, int level )

static

Definition at line 257 of file nvenc.c.

Referenced by nvenc_load_libraries().

nvenc_load_libraries()

static av_cold int nvenc_load_libraries ( AVCodecContext * avctx )

static

Definition at line 303 of file nvenc.c.

Referenced by ff_nvenc_encode_init().

nvenc_push_context()

static int nvenc_push_context ( AVCodecContext * avctx )

static

Definition at line 347 of file nvenc.c.

Referenced by ff_nvenc_encode_close(), ff_nvenc_receive_packet(), nvenc_check_device(), nvenc_send_frame(), nvenc_setup_encoder(), and nvenc_setup_surfaces().

nvenc_pop_context()

static int nvenc_pop_context ( AVCodecContext * avctx )

static

Definition at line 358 of file nvenc.c.

Referenced by ff_nvenc_encode_close(), ff_nvenc_receive_packet(), nvenc_check_device(), nvenc_send_frame(), nvenc_setup_encoder(), and nvenc_setup_surfaces().

nvenc_open_session()

static av_cold int nvenc_open_session ( AVCodecContext * avctx )

static

Definition at line 370 of file nvenc.c.

Referenced by nvenc_check_device(), and nvenc_setup_device().

nvenc_check_codec_support()

static int nvenc_check_codec_support ( AVCodecContext * avctx )

static

Definition at line 396 of file nvenc.c.

Referenced by nvenc_check_capabilities().

nvenc_check_cap()

static int nvenc_check_cap ( AVCodecContext * avctx, NV_ENC_CAPS cap )

static

Definition at line 432 of file nvenc.c.

Referenced by nvenc_check_capabilities().

nvenc_check_capabilities()

static int nvenc_check_capabilities ( AVCodecContext * avctx )

static

Definition at line 449 of file nvenc.c.

Referenced by nvenc_check_device(), and nvenc_setup_device().

nvenc_check_device()

static av_cold int nvenc_check_device ( AVCodecContext * avctx, int idx )

static

Definition at line 638 of file nvenc.c.

Referenced by nvenc_setup_device().

nvenc_setup_device()

static av_cold int nvenc_setup_device ( AVCodecContext * avctx )

static

Definition at line 713 of file nvenc.c.

Referenced by ff_nvenc_encode_init().

set_constqp()

static av_cold void set_constqp ( AVCodecContext * avctx )

static

Definition at line 827 of file nvenc.c.

Referenced by nvenc_override_rate_control().

set_vbr()

static av_cold void set_vbr ( AVCodecContext * avctx )

static

Definition at line 865 of file nvenc.c.

Referenced by nvenc_override_rate_control(), and nvenc_setup_rate_control().

set_lossless()

static av_cold void set_lossless ( AVCodecContext * avctx )

static

Definition at line 942 of file nvenc.c.

Referenced by nvenc_setup_rate_control().

nvenc_override_rate_control()

static void nvenc_override_rate_control ( AVCodecContext * avctx )

static

Definition at line 956 of file nvenc.c.

Referenced by nvenc_setup_rate_control().

nvenc_recalc_surfaces()

static av_cold int nvenc_recalc_surfaces ( AVCodecContext * avctx )

static

Definition at line 975 of file nvenc.c.

Referenced by nvenc_setup_encoder().

nvenc_setup_rate_control()

static av_cold int nvenc_setup_rate_control ( AVCodecContext * avctx )

static

Definition at line 1018 of file nvenc.c.

Referenced by nvenc_setup_encoder().

nvenc_setup_h264_config()

static av_cold int nvenc_setup_h264_config ( AVCodecContext * avctx )

static

Definition at line 1160 of file nvenc.c.

Referenced by nvenc_setup_codec_config().

nvenc_setup_hevc_config()

static av_cold int nvenc_setup_hevc_config ( AVCodecContext * avctx )

static

Definition at line 1339 of file nvenc.c.

Referenced by nvenc_setup_codec_config().

nvenc_setup_codec_config()

static av_cold int nvenc_setup_codec_config ( AVCodecContext * avctx )

static

Definition at line 1639 of file nvenc.c.

Referenced by nvenc_setup_encoder().

compute_dar()

static void compute_dar ( AVCodecContext * avctx, int * dw, int * dh )

static

Definition at line 1656 of file nvenc.c.

Referenced by nvenc_setup_encoder(), and reconfig_encoder().

nvenc_setup_encoder()

static av_cold int nvenc_setup_encoder ( AVCodecContext * avctx )

static

Definition at line 1689 of file nvenc.c.

Referenced by ff_nvenc_encode_init().

nvenc_map_buffer_format()

static NV_ENC_BUFFER_FORMAT nvenc_map_buffer_format ( enum AVPixelFormat pix_fmt )

static

Definition at line 1854 of file nvenc.c.

Referenced by nvenc_alloc_surface(), and nvenc_register_frame().

nvenc_alloc_surface()

static av_cold int nvenc_alloc_surface ( AVCodecContext * avctx, int idx )

static

Definition at line 1897 of file nvenc.c.

Referenced by nvenc_setup_surfaces().

nvenc_setup_surfaces()

static av_cold int nvenc_setup_surfaces ( AVCodecContext * avctx )

static

Definition at line 1953 of file nvenc.c.

Referenced by ff_nvenc_encode_init().

nvenc_setup_extradata()

static av_cold int nvenc_setup_extradata ( AVCodecContext * avctx )

static

Definition at line 1999 of file nvenc.c.

Referenced by ff_nvenc_encode_init().

ff_nvenc_encode_close()

av_cold int ff_nvenc_encode_close

(

AVCodecContext *

avctx

)

Definition at line 2033 of file nvenc.c.

ff_nvenc_encode_init()

av_cold int ff_nvenc_encode_init

(

AVCodecContext *

avctx

)

Definition at line 2118 of file nvenc.c.

get_free_frame()

static NvencSurface * get_free_frame ( NvencContext * ctx )

static

Definition at line 2170 of file nvenc.c.

Referenced by nvenc_send_frame().

nvenc_copy_frame()

static int nvenc_copy_frame ( AVCodecContext * avctx, NvencSurface * nv_surface, NV_ENC_LOCK_INPUT_BUFFER * lock_buffer_params, const AVFrame * frame )

static

Definition at line 2181 of file nvenc.c.

Referenced by nvenc_upload_frame().

nvenc_find_free_reg_resource()

static int nvenc_find_free_reg_resource ( AVCodecContext * avctx )

static

Definition at line 2211 of file nvenc.c.

Referenced by nvenc_register_frame().

nvenc_register_frame()

static int nvenc_register_frame ( AVCodecContext * avctx, const AVFrame * frame )

static

Definition at line 2245 of file nvenc.c.

Referenced by nvenc_upload_frame().

nvenc_upload_frame()

static int nvenc_upload_frame ( AVCodecContext * avctx, const AVFrame * frame, NvencSurface * nvenc_frame )

static

Definition at line 2325 of file nvenc.c.

Referenced by nvenc_send_frame().

nvenc_codec_specific_pic_params()

static void nvenc_codec_specific_pic_params ( AVCodecContext * avctx, const AVFrame * frame, NV_ENC_PIC_PARAMS * params, NV_ENC_SEI_PAYLOAD * sei_data, int sei_count )

static

Definition at line 2437 of file nvenc.c.

Referenced by nvenc_send_frame().

timestamp_queue_enqueue()

static void timestamp_queue_enqueue ( AVFifo * queue, int64_t timestamp )

inlinestatic

Definition at line 2488 of file nvenc.c.

Referenced by nvenc_send_frame().

timestamp_queue_dequeue()

static int64_t timestamp_queue_dequeue ( AVFifo * queue )

inlinestatic

Definition at line 2493 of file nvenc.c.

Referenced by nvenc_set_timestamp(), and process_output_surface().

timestamp_queue_peek()

static int64_t timestamp_queue_peek ( AVFifo * queue, size_t index )

inlinestatic

Definition at line 2502 of file nvenc.c.

Referenced by nvenc_set_timestamp().

nvenc_set_timestamp()

static int nvenc_set_timestamp ( AVCodecContext * avctx, NV_ENC_LOCK_BITSTREAM * params, AVPacket * pkt )

static

Definition at line 2510 of file nvenc.c.

Referenced by process_output_surface().

nvenc_store_frame_data()

static int nvenc_store_frame_data ( AVCodecContext * avctx, NV_ENC_PIC_PARAMS * pic_params, const AVFrame * frame )

static

Definition at line 2567 of file nvenc.c.

Referenced by nvenc_send_frame().

nvenc_retrieve_frame_data()

static int nvenc_retrieve_frame_data ( AVCodecContext * avctx, NV_ENC_LOCK_BITSTREAM * lock_params, AVPacket * pkt )

static

Definition at line 2593 of file nvenc.c.

Referenced by process_output_surface().

process_output_surface()

static int process_output_surface ( AVCodecContext * avctx, AVPacket * pkt, NvencSurface * tmpoutsurf )

static

Definition at line 2614 of file nvenc.c.

Referenced by ff_nvenc_receive_packet().

output_ready()

static int output_ready ( AVCodecContext * avctx, int flush )

static

Definition at line 2714 of file nvenc.c.

Referenced by ff_nvenc_receive_packet().

prepare_sei_data_array()

static int prepare_sei_data_array ( AVCodecContext * avctx, const AVFrame * frame )

static

Definition at line 2726 of file nvenc.c.

Referenced by nvenc_send_frame().

reconfig_encoder()

static void reconfig_encoder ( AVCodecContext * avctx, const AVFrame * frame )

static

Definition at line 2840 of file nvenc.c.

Referenced by nvenc_send_frame().

nvenc_send_frame()

static int nvenc_send_frame ( AVCodecContext * avctx, const AVFrame * frame )

static

Definition at line 3004 of file nvenc.c.

Referenced by ff_nvenc_encode_flush(), and ff_nvenc_receive_packet().

ff_nvenc_receive_packet()

int ff_nvenc_receive_packet	(	AVCodecContext *	avctx,
		AVPacket *	pkt )

Definition at line 3177 of file nvenc.c.

ff_nvenc_encode_flush()

av_cold void ff_nvenc_encode_flush

(

AVCodecContext *

avctx

)

Definition at line 3228 of file nvenc.c.

Variable Documentation

ff_nvenc_pix_fmts

enum AVPixelFormat ff_nvenc_pix_fmts[]

Definition at line 53 of file nvenc.c.

ff_nvenc_hw_configs

const AVCodecHWConfigInternal* const ff_nvenc_hw_configs[]

Initial value:

= {
    HW_CONFIG_ENCODER_FRAMES(CUDA,  CUDA),
 
 
 
    HW_CONFIG_ENCODER_DEVICE(NONE,  CUDA),
 
 
 
 
    NULL,
}

Definition at line 92 of file nvenc.c.

nverr

NVENCSTATUS nverr

Definition at line 156 of file nvenc.c.

Referenced by nvenc_map_error().

averr

int averr

Definition at line 157 of file nvenc.c.

Referenced by print_ssl_error().

desc

const char* desc

Definition at line 158 of file nvenc.c.

[struct]

const struct { ... } nvenc_errors[]

Initial value:

= {
    { NV_ENC_SUCCESS,                      0,                "success"                  },
    { NV_ENC_ERR_NO_ENCODE_DEVICE,         AVERROR(ENOENT),  "no encode device"         },
    { NV_ENC_ERR_UNSUPPORTED_DEVICE,       AVERROR(ENOSYS),  "unsupported device"       },
    { NV_ENC_ERR_INVALID_ENCODERDEVICE,    AVERROR(EINVAL),  "invalid encoder device"   },
    { NV_ENC_ERR_INVALID_DEVICE,           AVERROR(EINVAL),  "invalid device"           },
    { NV_ENC_ERR_DEVICE_NOT_EXIST,         AVERROR(EIO),     "device does not exist"    },
    { NV_ENC_ERR_INVALID_PTR,              AVERROR(EFAULT),  "invalid ptr"              },
    { NV_ENC_ERR_INVALID_EVENT,            AVERROR(EINVAL),  "invalid event"            },
    { NV_ENC_ERR_INVALID_PARAM,            AVERROR(EINVAL),  "invalid param"            },
    { NV_ENC_ERR_INVALID_CALL,             AVERROR(EINVAL),  "invalid call"             },
    { NV_ENC_ERR_OUT_OF_MEMORY,            AVERROR(ENOMEM),  "out of memory"            },
    { NV_ENC_ERR_ENCODER_NOT_INITIALIZED,  AVERROR(EINVAL),  "encoder not initialized"  },
    { NV_ENC_ERR_UNSUPPORTED_PARAM,        AVERROR(ENOSYS),  "unsupported param"        },
    { NV_ENC_ERR_LOCK_BUSY,                AVERROR(EAGAIN),  "lock busy"                },
    { NV_ENC_ERR_NOT_ENOUGH_BUFFER,        AVERROR_BUFFER_TOO_SMALL, "not enough buffer"},
    { NV_ENC_ERR_INVALID_VERSION,          AVERROR(EINVAL),  "invalid version"          },
    { NV_ENC_ERR_MAP_FAILED,               AVERROR(EIO),     "map failed"               },
    { NV_ENC_ERR_NEED_MORE_INPUT,          AVERROR(EAGAIN),  "need more input"          },
    { NV_ENC_ERR_ENCODER_BUSY,             AVERROR(EAGAIN),  "encoder busy"             },
    { NV_ENC_ERR_EVENT_NOT_REGISTERD,      AVERROR(EBADF),   "event not registered"     },
    { NV_ENC_ERR_GENERIC,                  AVERROR_UNKNOWN,  "generic error"            },
    { NV_ENC_ERR_INCOMPATIBLE_CLIENT_KEY,  AVERROR(EINVAL),  "incompatible client key"  },
    { NV_ENC_ERR_UNIMPLEMENTED,            AVERROR(ENOSYS),  "unimplemented"            },
    { NV_ENC_ERR_RESOURCE_REGISTER_FAILED, AVERROR(EIO),     "resource register failed" },
    { NV_ENC_ERR_RESOURCE_NOT_REGISTERED,  AVERROR(EBADF),   "resource not registered"  },
    { NV_ENC_ERR_RESOURCE_NOT_MAPPED,      AVERROR(EBADF),   "resource not mapped"      },
}

Referenced by nvenc_map_error().