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/*
* This file is part of Libav.
*
* Libav 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.
*
* Libav 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 Libav; 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 <cuda.h>
#include <nvEncodeAPI.h>
#include "libavutil/fifo.h"
#include "libavutil/opt.h"
#include "avcodec.h"
typedef struct NVENCInputSurface {
NV_ENC_INPUT_PTR in;
NV_ENC_BUFFER_FORMAT format;
int locked;
} NVENCInputSurface;
typedef struct NVENCOutputSurface {
NV_ENC_OUTPUT_PTR out;
NVENCInputSurface *in;
int busy;
} NVENCOutputSurface;
typedef CUresult(CUDAAPI *PCUINIT)(unsigned int Flags);
typedef CUresult(CUDAAPI *PCUDEVICEGETCOUNT)(int *count);
typedef CUresult(CUDAAPI *PCUDEVICEGET)(CUdevice *device, int ordinal);
typedef CUresult(CUDAAPI *PCUDEVICEGETNAME)(char *name, int len, CUdevice dev);
typedef CUresult(CUDAAPI *PCUDEVICECOMPUTECAPABILITY)(int *major, int *minor, CUdevice dev);
typedef CUresult(CUDAAPI *PCUCTXCREATE)(CUcontext *pctx, unsigned int flags, CUdevice dev);
typedef CUresult(CUDAAPI *PCUCTXPOPCURRENT)(CUcontext *pctx);
typedef CUresult(CUDAAPI *PCUCTXDESTROY)(CUcontext ctx);
typedef NVENCSTATUS (NVENCAPI *PNVENCODEAPICREATEINSTANCE)(NV_ENCODE_API_FUNCTION_LIST *functionList);
typedef struct NVENCLibraryContext
{
void *cuda;
void *nvenc;
PCUINIT cu_init;
PCUDEVICEGETCOUNT cu_device_get_count;
PCUDEVICEGET cu_device_get;
PCUDEVICEGETNAME cu_device_get_name;
PCUDEVICECOMPUTECAPABILITY cu_device_compute_capability;
PCUCTXCREATE cu_ctx_create;
PCUCTXPOPCURRENT cu_ctx_pop_current;
PCUCTXDESTROY cu_ctx_destroy;
NV_ENCODE_API_FUNCTION_LIST nvenc_funcs;
} NVENCLibraryContext;
enum {
PRESET_DEFAULT,
PRESET_HP,
PRESET_HQ,
PRESET_BD ,
PRESET_LOW_LATENCY_DEFAULT ,
PRESET_LOW_LATENCY_HQ ,
PRESET_LOW_LATENCY_HP,
PRESET_LOSSLESS_DEFAULT,
PRESET_LOSSLESS_HP,
};
enum {
NV_ENC_H264_PROFILE_BASELINE,
NV_ENC_H264_PROFILE_MAIN,
NV_ENC_H264_PROFILE_HIGH,
NV_ENC_H264_PROFILE_HIGH_444,
NV_ENC_H264_PROFILE_CONSTRAINED_HIGH,
};
enum {
NVENC_LOWLATENCY = 1,
NVENC_LOSSLESS,
};
enum {
LIST_DEVICES = -2,
ANY_DEVICE,
};
typedef struct NVENCContext {
AVClass *class;
NVENCLibraryContext nvel;
NV_ENC_INITIALIZE_PARAMS params;
NV_ENC_CONFIG config;
CUcontext cu_context;
int nb_surfaces;
NVENCInputSurface *in;
NVENCOutputSurface *out;
AVFifoBuffer *timestamps;
AVFifoBuffer *pending, *ready;
/* timestamps of the first two frames, for computing the first dts
* when b-frames are present */
int64_t initial_pts[2];
int first_packet_output;
void *nvenc_ctx;
int preset;
int profile;
int level;
int tier;
int rc;
int device;
int flags;
} NVENCContext;
int ff_nvenc_encode_init(AVCodecContext *avctx);
int ff_nvenc_encode_close(AVCodecContext *avctx);
int ff_nvenc_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
const AVFrame *frame, int *got_packet);
#endif /* AVCODEC_NVENC_H */
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