/* * 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; int64_t last_dts; 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 */