mirror of
https://github.com/FFmpeg/FFmpeg.git
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141 lines
3.7 KiB
C
141 lines
3.7 KiB
C
/*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_NVENC_H
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#define AVCODEC_NVENC_H
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#include <cuda.h>
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#include <nvEncodeAPI.h>
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#include "libavutil/fifo.h"
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#include "libavutil/opt.h"
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#include "avcodec.h"
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typedef struct NVENCInputSurface {
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NV_ENC_INPUT_PTR in;
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NV_ENC_BUFFER_FORMAT format;
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int locked;
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} NVENCInputSurface;
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typedef struct NVENCOutputSurface {
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NV_ENC_OUTPUT_PTR out;
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NVENCInputSurface *in;
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int busy;
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} NVENCOutputSurface;
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typedef CUresult(CUDAAPI *PCUINIT)(unsigned int Flags);
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typedef CUresult(CUDAAPI *PCUDEVICEGETCOUNT)(int *count);
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typedef CUresult(CUDAAPI *PCUDEVICEGET)(CUdevice *device, int ordinal);
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typedef CUresult(CUDAAPI *PCUDEVICEGETNAME)(char *name, int len, CUdevice dev);
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typedef CUresult(CUDAAPI *PCUDEVICECOMPUTECAPABILITY)(int *major, int *minor, CUdevice dev);
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typedef CUresult(CUDAAPI *PCUCTXCREATE)(CUcontext *pctx, unsigned int flags, CUdevice dev);
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typedef CUresult(CUDAAPI *PCUCTXPOPCURRENT)(CUcontext *pctx);
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typedef CUresult(CUDAAPI *PCUCTXDESTROY)(CUcontext ctx);
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typedef NVENCSTATUS (NVENCAPI *PNVENCODEAPICREATEINSTANCE)(NV_ENCODE_API_FUNCTION_LIST *functionList);
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typedef struct NVENCLibraryContext
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{
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void *cuda;
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void *nvenc;
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PCUINIT cu_init;
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PCUDEVICEGETCOUNT cu_device_get_count;
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PCUDEVICEGET cu_device_get;
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PCUDEVICEGETNAME cu_device_get_name;
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PCUDEVICECOMPUTECAPABILITY cu_device_compute_capability;
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PCUCTXCREATE cu_ctx_create;
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PCUCTXPOPCURRENT cu_ctx_pop_current;
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PCUCTXDESTROY cu_ctx_destroy;
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NV_ENCODE_API_FUNCTION_LIST nvenc_funcs;
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} NVENCLibraryContext;
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enum {
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PRESET_DEFAULT,
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PRESET_HP,
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PRESET_HQ,
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PRESET_BD ,
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PRESET_LOW_LATENCY_DEFAULT ,
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PRESET_LOW_LATENCY_HQ ,
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PRESET_LOW_LATENCY_HP,
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PRESET_LOSSLESS_DEFAULT,
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PRESET_LOSSLESS_HP,
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};
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enum {
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NV_ENC_H264_PROFILE_BASELINE,
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NV_ENC_H264_PROFILE_MAIN,
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NV_ENC_H264_PROFILE_HIGH,
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NV_ENC_H264_PROFILE_HIGH_444,
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NV_ENC_H264_PROFILE_CONSTRAINED_HIGH,
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};
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enum {
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NVENC_LOWLATENCY = 1,
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NVENC_LOSSLESS,
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};
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enum {
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LIST_DEVICES = -2,
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ANY_DEVICE,
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};
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typedef struct NVENCContext {
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AVClass *class;
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NVENCLibraryContext nvel;
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NV_ENC_INITIALIZE_PARAMS params;
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NV_ENC_CONFIG config;
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CUcontext cu_context;
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int nb_surfaces;
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NVENCInputSurface *in;
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NVENCOutputSurface *out;
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AVFifoBuffer *timestamps;
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AVFifoBuffer *pending, *ready;
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/* timestamps of the first two frames, for computing the first dts
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* when b-frames are present */
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int64_t initial_pts[2];
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int first_packet_output;
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void *nvenc_ctx;
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int preset;
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int profile;
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int level;
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int tier;
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int rc;
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int device;
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int flags;
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} NVENCContext;
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int ff_nvenc_encode_init(AVCodecContext *avctx);
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int ff_nvenc_encode_close(AVCodecContext *avctx);
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int ff_nvenc_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
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const AVFrame *frame, int *got_packet);
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extern const enum AVPixelFormat ff_nvenc_pix_fmts[];
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#endif /* AVCODEC_NVENC_H */
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