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FFmpeg/libavcodec/nvenc.h
Cameron Gutman 839b41991d avcodec/nvenc: unify CBR filler data insertion for all codecs 
Previously, AV1 used filler data with CBR by default while H.264
and HEVC may or may not depending on driver version. Make this
consistent by using not filler data in CBR mode for all codecs.

Since there are valid reasons to use CBR with or without filler,
also add a cbr_padding option to allow users to override this.

Signed-off-by: Cameron Gutman <aicommander@gmail.com>
Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
2025-04-01 19:13:38 +02:00

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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_NVENC_H
#define AVCODEC_NVENC_H
#include "config.h"
#if CONFIG_D3D11VA
#define COBJMACROS
#include "libavutil/hwcontext_d3d11va.h"
#else
typedef void ID3D11Device;
#endif
#include <ffnvcodec/nvEncodeAPI.h>
#include "compat/cuda/dynlink_loader.h"
#include "libavutil/buffer.h"
#include "libavutil/fifo.h"
#include "libavutil/opt.h"
#include "hwconfig.h"
#include "avcodec.h"
#define MAX_REGISTERED_FRAMES 64
#define RC_MODE_DEPRECATED 0x800000
#define RCD(rc_mode) ((rc_mode) | RC_MODE_DEPRECATED)
#define NVENCAPI_CHECK_VERSION(major, minor) \
((major) < NVENCAPI_MAJOR_VERSION || ((major) == NVENCAPI_MAJOR_VERSION && (minor) <= NVENCAPI_MINOR_VERSION))
// SDK 8.1 compile time feature checks
#if NVENCAPI_CHECK_VERSION(8, 1)
#define NVENC_HAVE_BFRAME_REF_MODE
#define NVENC_HAVE_QP_MAP_MODE
#endif
// SDK 9.0 compile time feature checks
#if NVENCAPI_CHECK_VERSION(9, 0)
#define NVENC_HAVE_HEVC_BFRAME_REF_MODE
#endif
// SDK 9.1 compile time feature checks
#if NVENCAPI_CHECK_VERSION(9, 1)
#define NVENC_HAVE_MULTIPLE_REF_FRAMES
#define NVENC_HAVE_CUSTREAM_PTR
#define NVENC_HAVE_GETLASTERRORSTRING
#define NVENC_HAVE_FILLER_DATA
#endif
// SDK 10.0 compile time feature checks
#if NVENCAPI_CHECK_VERSION(10, 0)
#define NVENC_HAVE_NEW_PRESETS
#define NVENC_HAVE_MULTIPASS
#define NVENC_HAVE_LDKFS
#define NVENC_HAVE_H264_LVL6
#define NVENC_HAVE_HEVC_CONSTRAINED_ENCODING
#endif
// SDK 11.1 compile time feature checks
#if NVENCAPI_CHECK_VERSION(11, 1)
#define NVENC_HAVE_QP_CHROMA_OFFSETS
#define NVENC_HAVE_SINGLE_SLICE_INTRA_REFRESH
#endif
// SDK 12.0 compile time feature checks
#if NVENCAPI_CHECK_VERSION(12, 0)
#define NVENC_HAVE_HEVC_OUTPUT_RECOVERY_POINT_SEI
#endif
// SDK 12.1 compile time feature checks
#if NVENCAPI_CHECK_VERSION(12, 1)
#define NVENC_NO_DEPRECATED_RC
#define NVENC_HAVE_SPLIT_FRAME_ENCODING
#endif
// SDK 12.2 compile time feature checks
#if NVENCAPI_CHECK_VERSION(12, 2)
#define NVENC_HAVE_NEW_BIT_DEPTH_API
#define NVENC_HAVE_TEMPORAL_FILTER
#define NVENC_HAVE_LOOKAHEAD_LEVEL
#define NVENC_HAVE_UHQ_TUNING
#define NVENC_HAVE_UNIDIR_B
#define NVENC_HAVE_TIME_CODE // added in 12.0, but incomplete until 12.2
#endif
// SDK 13.0 compile time feature checks
#if NVENCAPI_CHECK_VERSION(13, 0)
#define NVENC_HAVE_H264_10BIT_SUPPORT
#define NVENC_HAVE_422_SUPPORT
#define NVENC_HAVE_AV1_UHQ_TUNING
#define NVENC_HAVE_H264_AND_AV1_TEMPORAL_FILTER
#define NVENC_HAVE_HEVC_AND_AV1_MASTERING_METADATA
#endif
typedef struct NvencSurface
{
NV_ENC_INPUT_PTR input_surface;
AVFrame *in_ref;
int reg_idx;
int width;
int height;
int pitch;
NV_ENC_OUTPUT_PTR output_surface;
NV_ENC_BUFFER_FORMAT format;
} NvencSurface;
typedef struct NvencFrameData
{
int64_t duration;
void *frame_opaque;
AVBufferRef *frame_opaque_ref;
} NvencFrameData;
typedef struct NvencDynLoadFunctions
{
CudaFunctions *cuda_dl;
NvencFunctions *nvenc_dl;
NV_ENCODE_API_FUNCTION_LIST nvenc_funcs;
int nvenc_device_count;
} NvencDynLoadFunctions;
enum {
PRESET_DEFAULT = 0,
PRESET_SLOW,
PRESET_MEDIUM,
PRESET_FAST,
PRESET_HP,
PRESET_HQ,
PRESET_BD ,
PRESET_LOW_LATENCY_DEFAULT ,
PRESET_LOW_LATENCY_HQ ,
PRESET_LOW_LATENCY_HP,
PRESET_LOSSLESS_DEFAULT,
PRESET_LOSSLESS_HP,
#ifdef NVENC_HAVE_NEW_PRESETS
PRESET_P1,
PRESET_P2,
PRESET_P3,
PRESET_P4,
PRESET_P5,
PRESET_P6,
PRESET_P7,
#endif
};
enum {
NV_ENC_H264_PROFILE_BASELINE,
NV_ENC_H264_PROFILE_MAIN,
NV_ENC_H264_PROFILE_HIGH,
#ifdef NVENC_HAVE_H264_10BIT_SUPPORT
NV_ENC_H264_PROFILE_HIGH_10,
#endif
#ifdef NVENC_HAVE_422_SUPPORT
NV_ENC_H264_PROFILE_HIGH_422,
#endif
NV_ENC_H264_PROFILE_HIGH_444P,
};
enum {
NV_ENC_HEVC_PROFILE_MAIN,
NV_ENC_HEVC_PROFILE_MAIN_10,
NV_ENC_HEVC_PROFILE_REXT,
};
enum {
NVENC_LOWLATENCY = 1,
NVENC_LOSSLESS = 2,
NVENC_ONE_PASS = 4,
NVENC_TWO_PASSES = 8,
NVENC_DEPRECATED_PRESET = 0x8000,
};
enum {
LIST_DEVICES = -2,
ANY_DEVICE,
};
enum {
NVENC_RGB_MODE_DISABLED,
NVENC_RGB_MODE_420,
NVENC_RGB_MODE_444,
};
typedef struct NvencContext
{
AVClass *avclass;
NvencDynLoadFunctions nvenc_dload_funcs;
NV_ENC_INITIALIZE_PARAMS init_encode_params;
NV_ENC_CONFIG encode_config;
CUcontext cu_context;
CUcontext cu_context_internal;
CUstream cu_stream;
ID3D11Device *d3d11_device;
AVFrame *frame;
int nb_surfaces;
NvencSurface *surfaces;
NvencFrameData *frame_data_array;
int frame_data_array_nb;
int frame_data_array_pos;
AVFifo *unused_surface_queue;
AVFifo *output_surface_queue;
AVFifo *output_surface_ready_queue;
AVFifo *timestamp_list;
// This is for DTS calculating, reset after flush
uint64_t output_frame_num;
int64_t initial_delay_time;
NV_ENC_SEI_PAYLOAD *sei_data;
int sei_data_size;
struct {
void *ptr;
int ptr_index;
NV_ENC_REGISTERED_PTR regptr;
int mapped;
NV_ENC_MAP_INPUT_RESOURCE in_map;
} registered_frames[MAX_REGISTERED_FRAMES];
int nb_registered_frames;
/* the actual data pixel format, different from
* AVCodecContext.pix_fmt when using hwaccel frames on input */
enum AVPixelFormat data_pix_fmt;
int support_dyn_bitrate;
void *nvencoder;
uint32_t frame_idx_counter;
int preset;
int profile;
int level;
int tier;
int rc;
int cbr;
int tile_rows;
int tile_cols;
int twopass;
int device;
int flags;
int async_depth;
int rc_lookahead;
int aq;
int no_scenecut;
int forced_idr;
int b_adapt;
int temporal_aq;
int zerolatency;
int nonref_p;
int strict_gop;
int aq_strength;
float quality;
int aud;
int bluray_compat;
int qmin;
int qmax;
int init_qp_p;
int init_qp_b;
int init_qp_i;
int cqp;
int qp_cb_offset;
int qp_cr_offset;
int weighted_pred;
int coder;
int b_ref_mode;
int a53_cc;
int s12m_tc;
int dpb_size;
int tuning_info;
int multipass;
int ldkfs;
int extra_sei;
int intra_refresh;
int single_slice_intra_refresh;
int constrained_encoding;
int udu_sei;
int timing_info;
int highbitdepth;
int max_slice_size;
int rgb_mode;
int tf_level;
int lookahead_level;
int unidir_b;
int split_encode_mode;
int mdm, cll;
int cbr_padding;
} NvencContext;
int ff_nvenc_encode_init(AVCodecContext *avctx);
int ff_nvenc_encode_close(AVCodecContext *avctx);
int ff_nvenc_receive_packet(AVCodecContext *avctx, AVPacket *pkt);
void ff_nvenc_encode_flush(AVCodecContext *avctx);
extern const enum AVPixelFormat ff_nvenc_pix_fmts[];
extern const AVCodecHWConfigInternal *const ff_nvenc_hw_configs[];
#endif /* AVCODEC_NVENC_H */
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