diff options
Diffstat (limited to 'libavcodec/nvenc.c')
| -rw-r--r-- | libavcodec/nvenc.c | 2026 |
1 files changed, 1184 insertions, 842 deletions
diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c index ea260b0c87..a5652c545a 100644 --- a/libavcodec/nvenc.c +++ b/libavcodec/nvenc.c @@ -1,1049 +1,1128 @@ /* - * NVIDIA NVENC Support - * Copyright (C) 2015 Luca Barbato + * H.264 hardware encoding using nvidia nvenc + * Copyright (c) 2014 Timo Rothenpieler <timo@rothenpieler.org> * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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. * - * Libav is distributed in the hope that it will be useful, + * 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 Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ -#include "config.h" - -#include <cuda.h> -#include <nvEncodeAPI.h> -#include <string.h> - -#define CUDA_LIBNAME "libcuda.so" - -#if HAVE_DLFCN_H -#include <dlfcn.h> - -#define NVENC_LIBNAME "libnvidia-encode.so" - -#elif HAVE_WINDOWS_H +#if defined(_WIN32) #include <windows.h> - -#if ARCH_X86_64 -#define NVENC_LIBNAME "nvEncodeAPI64.dll" #else -#define NVENC_LIBNAME "nvEncodeAPI.dll" +#include <dlfcn.h> #endif -#define dlopen(filename, flags) LoadLibrary((filename)) -#define dlsym(handle, symbol) GetProcAddress(handle, symbol) -#define dlclose(handle) FreeLibrary(handle) -#endif +#include <nvEncodeAPI.h> -#include "libavutil/common.h" +#include "libavutil/internal.h" #include "libavutil/imgutils.h" +#include "libavutil/avassert.h" +#include "libavutil/opt.h" #include "libavutil/mem.h" #include "avcodec.h" #include "internal.h" -#include "nvenc.h" - -#define NVENC_CAP 0x30 -#define BITSTREAM_BUFFER_SIZE 1024 * 1024 - -#define LOAD_LIBRARY(l, path) \ - do { \ - if (!((l) = dlopen(path, RTLD_LAZY))) { \ - av_log(avctx, AV_LOG_ERROR, \ - "Cannot load %s\n", \ - path); \ - return AVERROR_UNKNOWN; \ - } \ - } while (0) - -#define LOAD_SYMBOL(fun, lib, symbol) \ - do { \ - if (!((fun) = dlsym(lib, symbol))) { \ - av_log(avctx, AV_LOG_ERROR, \ - "Cannot load %s\n", \ - symbol); \ - return AVERROR_UNKNOWN; \ - } \ - } while (0) - -static av_cold int nvenc_load_libraries(AVCodecContext *avctx) -{ - NVENCContext *ctx = avctx->priv_data; - NVENCLibraryContext *nvel = &ctx->nvel; - PNVENCODEAPICREATEINSTANCE nvenc_create_instance; +#include "thread.h" - LOAD_LIBRARY(nvel->cuda, CUDA_LIBNAME); +#if defined(_WIN32) +#define CUDAAPI __stdcall +#else +#define CUDAAPI +#endif - LOAD_SYMBOL(nvel->cu_init, nvel->cuda, "cuInit"); - LOAD_SYMBOL(nvel->cu_device_get_count, nvel->cuda, "cuDeviceGetCount"); - LOAD_SYMBOL(nvel->cu_device_get, nvel->cuda, "cuDeviceGet"); - LOAD_SYMBOL(nvel->cu_device_get_name, nvel->cuda, "cuDeviceGetName"); - LOAD_SYMBOL(nvel->cu_device_compute_capability, nvel->cuda, - "cuDeviceComputeCapability"); - LOAD_SYMBOL(nvel->cu_ctx_create, nvel->cuda, "cuCtxCreate_v2"); - LOAD_SYMBOL(nvel->cu_ctx_pop_current, nvel->cuda, "cuCtxPopCurrent_v2"); - LOAD_SYMBOL(nvel->cu_ctx_destroy, nvel->cuda, "cuCtxDestroy_v2"); +#if defined(_WIN32) +#define LOAD_FUNC(l, s) GetProcAddress(l, s) +#define DL_CLOSE_FUNC(l) FreeLibrary(l) +#else +#define LOAD_FUNC(l, s) dlsym(l, s) +#define DL_CLOSE_FUNC(l) dlclose(l) +#endif - LOAD_LIBRARY(nvel->nvenc, NVENC_LIBNAME); +typedef enum cudaError_enum { + CUDA_SUCCESS = 0 +} CUresult; +typedef int CUdevice; +typedef void* CUcontext; - LOAD_SYMBOL(nvenc_create_instance, nvel->nvenc, - "NvEncodeAPICreateInstance"); +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); - nvel->nvenc_funcs.version = NV_ENCODE_API_FUNCTION_LIST_VER; +typedef NVENCSTATUS (NVENCAPI* PNVENCODEAPICREATEINSTANCE)(NV_ENCODE_API_FUNCTION_LIST *functionList); - if ((nvenc_create_instance(&nvel->nvenc_funcs)) != NV_ENC_SUCCESS) { - av_log(avctx, AV_LOG_ERROR, "Cannot create the NVENC instance"); - return AVERROR_UNKNOWN; - } +typedef struct NvencInputSurface +{ + NV_ENC_INPUT_PTR input_surface; + int width; + int height; - return 0; -} + int lockCount; + + NV_ENC_BUFFER_FORMAT format; +} NvencInputSurface; -static int nvenc_open_session(AVCodecContext *avctx) +typedef struct NvencOutputSurface { - NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS params = { 0 }; - NVENCContext *ctx = avctx->priv_data; - NV_ENCODE_API_FUNCTION_LIST *nv = &ctx->nvel.nvenc_funcs; - int ret; - - params.version = NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS_VER; - params.apiVersion = NVENCAPI_VERSION; - params.device = ctx->cu_context; - params.deviceType = NV_ENC_DEVICE_TYPE_CUDA; - - ret = nv->nvEncOpenEncodeSessionEx(¶ms, &ctx->nvenc_ctx); - if (ret != NV_ENC_SUCCESS) { - ctx->nvenc_ctx = NULL; - av_log(avctx, AV_LOG_ERROR, - "Cannot open the NVENC Session\n"); - return AVERROR_UNKNOWN; - } + NV_ENC_OUTPUT_PTR output_surface; + int size; - return 0; -} + NvencInputSurface* input_surface; + + int busy; +} NvencOutputSurface; -static int nvenc_check_codec_support(AVCodecContext *avctx) +typedef struct NvencData { - NVENCContext *ctx = avctx->priv_data; - NV_ENCODE_API_FUNCTION_LIST *nv = &ctx->nvel.nvenc_funcs; - int i, ret, count = 0; - GUID *guids = NULL; + union { + int64_t timestamp; + NvencOutputSurface *surface; + }; +} NvencData; - ret = nv->nvEncGetEncodeGUIDCount(ctx->nvenc_ctx, &count); +typedef struct NvencDataList +{ + NvencData* data; - if (ret != NV_ENC_SUCCESS || !count) - return AVERROR(ENOSYS); + uint32_t pos; + uint32_t count; + uint32_t size; +} NvencDataList; - guids = av_malloc(count * sizeof(GUID)); - if (!guids) - return AVERROR(ENOMEM); +typedef struct NvencDynLoadFunctions +{ + 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; + int nvenc_device_count; + CUdevice nvenc_devices[16]; + +#if defined(_WIN32) + HMODULE cuda_lib; + HMODULE nvenc_lib; +#else + void* cuda_lib; + void* nvenc_lib; +#endif +} NvencDynLoadFunctions; - ret = nv->nvEncGetEncodeGUIDs(ctx->nvenc_ctx, guids, count, &count); - if (ret != NV_ENC_SUCCESS) { - ret = AVERROR(ENOSYS); - goto fail; - } +typedef struct NvencValuePair +{ + const char *str; + uint32_t num; +} NvencValuePair; - ret = AVERROR(ENOSYS); - for (i = 0; i < count; i++) { - if (!memcmp(&guids[i], &ctx->params.encodeGUID, sizeof(*guids))) { - ret = 0; - break; +typedef struct NvencContext +{ + AVClass *avclass; + + NvencDynLoadFunctions nvenc_dload_funcs; + + NV_ENC_INITIALIZE_PARAMS init_encode_params; + NV_ENC_CONFIG encode_config; + CUcontext cu_context; + + int max_surface_count; + NvencInputSurface *input_surfaces; + NvencOutputSurface *output_surfaces; + + NvencDataList output_surface_queue; + NvencDataList output_surface_ready_queue; + NvencDataList timestamp_list; + int64_t last_dts; + + void *nvencoder; + + char *preset; + char *profile; + char *level; + char *tier; + int cbr; + int twopass; + int gpu; +} NvencContext; + +static const NvencValuePair nvenc_h264_level_pairs[] = { + { "auto", NV_ENC_LEVEL_AUTOSELECT }, + { "1" , NV_ENC_LEVEL_H264_1 }, + { "1.0" , NV_ENC_LEVEL_H264_1 }, + { "1b" , NV_ENC_LEVEL_H264_1b }, + { "1.0b", NV_ENC_LEVEL_H264_1b }, + { "1.1" , NV_ENC_LEVEL_H264_11 }, + { "1.2" , NV_ENC_LEVEL_H264_12 }, + { "1.3" , NV_ENC_LEVEL_H264_13 }, + { "2" , NV_ENC_LEVEL_H264_2 }, + { "2.0" , NV_ENC_LEVEL_H264_2 }, + { "2.1" , NV_ENC_LEVEL_H264_21 }, + { "2.2" , NV_ENC_LEVEL_H264_22 }, + { "3" , NV_ENC_LEVEL_H264_3 }, + { "3.0" , NV_ENC_LEVEL_H264_3 }, + { "3.1" , NV_ENC_LEVEL_H264_31 }, + { "3.2" , NV_ENC_LEVEL_H264_32 }, + { "4" , NV_ENC_LEVEL_H264_4 }, + { "4.0" , NV_ENC_LEVEL_H264_4 }, + { "4.1" , NV_ENC_LEVEL_H264_41 }, + { "4.2" , NV_ENC_LEVEL_H264_42 }, + { "5" , NV_ENC_LEVEL_H264_5 }, + { "5.0" , NV_ENC_LEVEL_H264_5 }, + { "5.1" , NV_ENC_LEVEL_H264_51 }, + { NULL } +}; + +static const NvencValuePair nvenc_hevc_level_pairs[] = { + { "auto", NV_ENC_LEVEL_AUTOSELECT }, + { "1" , NV_ENC_LEVEL_HEVC_1 }, + { "1.0" , NV_ENC_LEVEL_HEVC_1 }, + { "2" , NV_ENC_LEVEL_HEVC_2 }, + { "2.0" , NV_ENC_LEVEL_HEVC_2 }, + { "2.1" , NV_ENC_LEVEL_HEVC_21 }, + { "3" , NV_ENC_LEVEL_HEVC_3 }, + { "3.0" , NV_ENC_LEVEL_HEVC_3 }, + { "3.1" , NV_ENC_LEVEL_HEVC_31 }, + { "4" , NV_ENC_LEVEL_HEVC_4 }, + { "4.0" , NV_ENC_LEVEL_HEVC_4 }, + { "4.1" , NV_ENC_LEVEL_HEVC_41 }, + { "5" , NV_ENC_LEVEL_HEVC_5 }, + { "5.0" , NV_ENC_LEVEL_HEVC_5 }, + { "5.1" , NV_ENC_LEVEL_HEVC_51 }, + { "5.2" , NV_ENC_LEVEL_HEVC_52 }, + { "6" , NV_ENC_LEVEL_HEVC_6 }, + { "6.0" , NV_ENC_LEVEL_HEVC_6 }, + { "6.1" , NV_ENC_LEVEL_HEVC_61 }, + { "6.2" , NV_ENC_LEVEL_HEVC_62 }, + { NULL } +}; + +static int input_string_to_uint32(AVCodecContext *avctx, const NvencValuePair *pair, const char *input, uint32_t *output) +{ + for (; pair->str; ++pair) { + if (!strcmp(input, pair->str)) { + *output = pair->num; + return 0; } } -fail: - av_free(guids); - - return ret; + return AVERROR(EINVAL); } -static int nvenc_check_cap(AVCodecContext *avctx, NV_ENC_CAPS cap) +static NvencData* data_queue_dequeue(NvencDataList* queue) { - NVENCContext *ctx = avctx->priv_data; - NV_ENCODE_API_FUNCTION_LIST *nv = &ctx->nvel.nvenc_funcs; - NV_ENC_CAPS_PARAM params = { 0 }; - int ret, val = 0; + uint32_t mask; + uint32_t read_pos; - params.version = NV_ENC_CAPS_PARAM_VER; - params.capsToQuery = cap; + av_assert0(queue); + av_assert0(queue->size); + av_assert0(queue->data); - ret = nv->nvEncGetEncodeCaps(ctx->nvenc_ctx, ctx->params.encodeGUID, ¶ms, &val); + if (!queue->count) + return NULL; - if (ret == NV_ENC_SUCCESS) - return val; - return 0; + /* Size always is a multiple of two */ + mask = queue->size - 1; + read_pos = (queue->pos - queue->count) & mask; + queue->count--; + + return &queue->data[read_pos]; } -static int nvenc_check_capabilities(AVCodecContext *avctx) +static int data_queue_enqueue(NvencDataList* queue, NvencData *data) { - int ret; + NvencDataList new_queue; + NvencData* tmp_data; + uint32_t mask; - ret = nvenc_check_codec_support(avctx); - if (ret < 0) { - av_log(avctx, AV_LOG_VERBOSE, "Codec not supported\n"); - return ret; - } + if (!queue->size) { + /* size always has to be a multiple of two */ + queue->size = 4; + queue->pos = 0; + queue->count = 0; - ret = nvenc_check_cap(avctx, NV_ENC_CAPS_SUPPORT_YUV444_ENCODE); - if (avctx->pix_fmt == AV_PIX_FMT_YUV444P && ret <= 0) { - av_log(avctx, AV_LOG_VERBOSE, "YUV444P not supported\n"); - return AVERROR(ENOSYS); - } - - ret = nvenc_check_cap(avctx, NV_ENC_CAPS_WIDTH_MAX); - if (ret < avctx->width) { - av_log(avctx, AV_LOG_VERBOSE, "Width %d exceeds %d\n", - avctx->width, ret); - return AVERROR(ENOSYS); - } + queue->data = av_malloc(queue->size * sizeof(*(queue->data))); - ret = nvenc_check_cap(avctx, NV_ENC_CAPS_HEIGHT_MAX); - if (ret < avctx->height) { - av_log(avctx, AV_LOG_VERBOSE, "Height %d exceeds %d\n", - avctx->height, ret); - return AVERROR(ENOSYS); + if (!queue->data) { + queue->size = 0; + return AVERROR(ENOMEM); + } } - ret = nvenc_check_cap(avctx, NV_ENC_CAPS_NUM_MAX_BFRAMES); - if (ret < avctx->max_b_frames) { - av_log(avctx, AV_LOG_VERBOSE, "Max b-frames %d exceed %d\n", - avctx->max_b_frames, ret); + if (queue->count == queue->size) { + new_queue.size = queue->size << 1; + new_queue.pos = 0; + new_queue.count = 0; + new_queue.data = av_malloc(new_queue.size * sizeof(*(queue->data))); - return AVERROR(ENOSYS); - } + if (!new_queue.data) + return AVERROR(ENOMEM); - return 0; -} + while (tmp_data = data_queue_dequeue(queue)) + data_queue_enqueue(&new_queue, tmp_data); -static int nvenc_check_device(AVCodecContext *avctx, int idx) -{ - NVENCContext *ctx = avctx->priv_data; - NVENCLibraryContext *nvel = &ctx->nvel; - char name[128] = { 0 }; - int major, minor, ret; - CUdevice cu_device; - CUcontext dummy; - int loglevel = AV_LOG_VERBOSE; - - if (ctx->device == LIST_DEVICES) - loglevel = AV_LOG_INFO; - - ret = nvel->cu_device_get(&cu_device, idx); - if (ret != CUDA_SUCCESS) { - av_log(avctx, AV_LOG_ERROR, - "Cannot access the CUDA device %d\n", - idx); - return -1; + av_free(queue->data); + *queue = new_queue; } - ret = nvel->cu_device_get_name(name, sizeof(name), cu_device); - if (ret != CUDA_SUCCESS) - return -1; - - ret = nvel->cu_device_compute_capability(&major, &minor, cu_device); - if (ret != CUDA_SUCCESS) - return -1; + mask = queue->size - 1; - av_log(avctx, loglevel, "Device %d [%s] ", cu_device, name); + queue->data[queue->pos] = *data; + queue->pos = (queue->pos + 1) & mask; + queue->count++; - if (((major << 4) | minor) < NVENC_CAP) - goto fail; + return 0; +} - ret = nvel->cu_ctx_create(&ctx->cu_context, 0, cu_device); - if (ret != CUDA_SUCCESS) - goto fail; +static int out_surf_queue_enqueue(NvencDataList* queue, NvencOutputSurface* surface) +{ + NvencData data; + data.surface = surface; - ret = nvel->cu_ctx_pop_current(&dummy); - if (ret != CUDA_SUCCESS) - goto fail2; + return data_queue_enqueue(queue, &data); +} - if ((ret = nvenc_open_session(avctx)) < 0) - goto fail2; +static NvencOutputSurface* out_surf_queue_dequeue(NvencDataList* queue) +{ + NvencData* res = data_queue_dequeue(queue); - if ((ret = nvenc_check_capabilities(avctx)) < 0) - goto fail3; + if (!res) + return NULL; - av_log(avctx, loglevel, "supports NVENC\n"); + return res->surface; +} - if (ctx->device == cu_device || ctx->device == ANY_DEVICE) - return 0; +static int timestamp_queue_enqueue(NvencDataList* queue, int64_t timestamp) +{ + NvencData data; + data.timestamp = timestamp; -fail3: - nvel->nvenc_funcs.nvEncDestroyEncoder(ctx->nvenc_ctx); - ctx->nvenc_ctx = NULL; + return data_queue_enqueue(queue, &data); +} -fail2: - nvel->cu_ctx_destroy(ctx->cu_context); - ctx->cu_context = NULL; +static int64_t timestamp_queue_dequeue(NvencDataList* queue) +{ + NvencData* res = data_queue_dequeue(queue); -fail: - if (ret != 0) - av_log(avctx, loglevel, "does not support NVENC (major %d minor %d)\n", - major, minor); + if (!res) + return AV_NOPTS_VALUE; - return AVERROR(ENOSYS); + return res->timestamp; } -static int nvenc_setup_device(AVCodecContext *avctx) +#define CHECK_LOAD_FUNC(t, f, s) \ +do { \ + (f) = (t)LOAD_FUNC(dl_fn->cuda_lib, s); \ + if (!(f)) { \ + av_log(avctx, AV_LOG_FATAL, "Failed loading %s from CUDA library\n", s); \ + goto error; \ + } \ +} while (0) + +static av_cold int nvenc_dyload_cuda(AVCodecContext *avctx) { - NVENCContext *ctx = avctx->priv_data; - NVENCLibraryContext *nvel = &ctx->nvel; - int i, nb_devices = 0; - - if ((nvel->cu_init(0)) != CUDA_SUCCESS) { - av_log(avctx, AV_LOG_ERROR, - "Cannot init CUDA\n"); - return AVERROR_UNKNOWN; - } + NvencContext *ctx = avctx->priv_data; + NvencDynLoadFunctions *dl_fn = &ctx->nvenc_dload_funcs; - if ((nvel->cu_device_get_count(&nb_devices)) != CUDA_SUCCESS) { - av_log(avctx, AV_LOG_ERROR, - "Cannot enumerate the CUDA devices\n"); - return AVERROR_UNKNOWN; - } + if (dl_fn->cuda_lib) + return 1; - switch (avctx->codec->id) { - case AV_CODEC_ID_H264: - ctx->params.encodeGUID = NV_ENC_CODEC_H264_GUID; - break; - case AV_CODEC_ID_HEVC: - ctx->params.encodeGUID = NV_ENC_CODEC_HEVC_GUID; - break; - default: - return AVERROR_BUG; - } +#if defined(_WIN32) + dl_fn->cuda_lib = LoadLibrary(TEXT("nvcuda.dll")); +#else + dl_fn->cuda_lib = dlopen("libcuda.so", RTLD_LAZY); +#endif - for (i = 0; i < nb_devices; ++i) { - if ((nvenc_check_device(avctx, i)) >= 0 && ctx->device != LIST_DEVICES) - return 0; + if (!dl_fn->cuda_lib) { + av_log(avctx, AV_LOG_FATAL, "Failed loading CUDA library\n"); + goto error; } - if (ctx->device == LIST_DEVICES) - return AVERROR_EXIT; - - return AVERROR(ENOSYS); -} + CHECK_LOAD_FUNC(PCUINIT, dl_fn->cu_init, "cuInit"); + CHECK_LOAD_FUNC(PCUDEVICEGETCOUNT, dl_fn->cu_device_get_count, "cuDeviceGetCount"); + CHECK_LOAD_FUNC(PCUDEVICEGET, dl_fn->cu_device_get, "cuDeviceGet"); + CHECK_LOAD_FUNC(PCUDEVICEGETNAME, dl_fn->cu_device_get_name, "cuDeviceGetName"); + CHECK_LOAD_FUNC(PCUDEVICECOMPUTECAPABILITY, dl_fn->cu_device_compute_capability, "cuDeviceComputeCapability"); + CHECK_LOAD_FUNC(PCUCTXCREATE, dl_fn->cu_ctx_create, "cuCtxCreate_v2"); + CHECK_LOAD_FUNC(PCUCTXPOPCURRENT, dl_fn->cu_ctx_pop_current, "cuCtxPopCurrent_v2"); + CHECK_LOAD_FUNC(PCUCTXDESTROY, dl_fn->cu_ctx_destroy, "cuCtxDestroy_v2"); -typedef struct GUIDTuple { - const GUID guid; - int flags; -} GUIDTuple; + return 1; -static int nvec_map_preset(NVENCContext *ctx) -{ - GUIDTuple presets[] = { - { NV_ENC_PRESET_DEFAULT_GUID }, - { NV_ENC_PRESET_HP_GUID }, - { NV_ENC_PRESET_HQ_GUID }, - { NV_ENC_PRESET_BD_GUID }, - { NV_ENC_PRESET_LOW_LATENCY_DEFAULT_GUID, NVENC_LOWLATENCY }, - { NV_ENC_PRESET_LOW_LATENCY_HP_GUID, NVENC_LOWLATENCY }, - { NV_ENC_PRESET_LOW_LATENCY_HQ_GUID, NVENC_LOWLATENCY }, - { NV_ENC_PRESET_LOSSLESS_DEFAULT_GUID, NVENC_LOSSLESS }, - { NV_ENC_PRESET_LOSSLESS_HP_GUID, NVENC_LOSSLESS }, - { { 0 } } - }; +error: - GUIDTuple *t = &presets[ctx->preset]; + if (dl_fn->cuda_lib) + DL_CLOSE_FUNC(dl_fn->cuda_lib); - ctx->params.presetGUID = t->guid; - ctx->flags = t->flags; + dl_fn->cuda_lib = NULL; - return AVERROR(EINVAL); + return 0; } -static void set_constqp(AVCodecContext *avctx, NV_ENC_RC_PARAMS *rc) +static av_cold int check_cuda_errors(AVCodecContext *avctx, CUresult err, const char *func) { - rc->rateControlMode = NV_ENC_PARAMS_RC_CONSTQP; - rc->constQP.qpInterB = avctx->global_quality; - rc->constQP.qpInterP = avctx->global_quality; - rc->constQP.qpIntra = avctx->global_quality; + if (err != CUDA_SUCCESS) { + av_log(avctx, AV_LOG_FATAL, ">> %s - failed with error code 0x%x\n", func, err); + return 0; + } + return 1; } +#define check_cuda_errors(f) if (!check_cuda_errors(avctx, f, #f)) goto error -static void set_vbr(AVCodecContext *avctx, NV_ENC_RC_PARAMS *rc) +static av_cold int nvenc_check_cuda(AVCodecContext *avctx) { - if (avctx->qmin >= 0) { - rc->enableMinQP = 1; - rc->minQP.qpInterB = avctx->qmin; - rc->minQP.qpInterP = avctx->qmin; - rc->minQP.qpIntra = avctx->qmin; - } + int device_count = 0; + CUdevice cu_device = 0; + char gpu_name[128]; + int smminor = 0, smmajor = 0; + int i, smver, target_smver; - if (avctx->qmax >= 0) { - rc->enableMaxQP = 1; - rc->maxQP.qpInterB = avctx->qmax; - rc->maxQP.qpInterP = avctx->qmax; - rc->maxQP.qpIntra = avctx->qmax; - } -} + NvencContext *ctx = avctx->priv_data; + NvencDynLoadFunctions *dl_fn = &ctx->nvenc_dload_funcs; -static void nvenc_override_rate_control(AVCodecContext *avctx, - NV_ENC_RC_PARAMS *rc) -{ - NVENCContext *ctx = avctx->priv_data; - - switch (ctx->rc) { - case NV_ENC_PARAMS_RC_CONSTQP: - if (avctx->global_quality < 0) { - av_log(avctx, AV_LOG_WARNING, - "The constant quality rate-control requires " - "the 'global_quality' option set.\n"); - return; - } - set_constqp(avctx, rc); - return; - case NV_ENC_PARAMS_RC_2_PASS_VBR: - case NV_ENC_PARAMS_RC_VBR: - if (avctx->qmin < 0 && avctx->qmax < 0) { - av_log(avctx, AV_LOG_WARNING, - "The variable bitrate rate-control requires " - "the 'qmin' and/or 'qmax' option set.\n"); - return; - } - case NV_ENC_PARAMS_RC_VBR_MINQP: - if (avctx->qmin < 0) { - av_log(avctx, AV_LOG_WARNING, - "The variable bitrate rate-control requires " - "the 'qmin' option set.\n"); - return; - } - set_vbr(avctx, rc); + switch (avctx->codec->id) { + case AV_CODEC_ID_H264: + target_smver = 0x30; break; - case NV_ENC_PARAMS_RC_CBR: + case AV_CODEC_ID_H265: + target_smver = 0x52; break; - case NV_ENC_PARAMS_RC_2_PASS_QUALITY: - case NV_ENC_PARAMS_RC_2_PASS_FRAMESIZE_CAP: - if (!(ctx->flags & NVENC_LOWLATENCY)) { - av_log(avctx, AV_LOG_WARNING, - "The multipass rate-control requires " - "a low-latency preset.\n"); - return; - } + default: + av_log(avctx, AV_LOG_FATAL, "nvenc: Unknown codec name\n"); + goto error; } - rc->rateControlMode = ctx->rc; -} + if (!nvenc_dyload_cuda(avctx)) + return 0; -static void nvenc_setup_rate_control(AVCodecContext *avctx) -{ - NVENCContext *ctx = avctx->priv_data; - NV_ENC_RC_PARAMS *rc = &ctx->config.rcParams; + if (dl_fn->nvenc_device_count > 0) + return 1; - if (avctx->bit_rate > 0) - rc->averageBitRate = avctx->bit_rate; + check_cuda_errors(dl_fn->cu_init(0)); - if (avctx->rc_max_rate > 0) - rc->maxBitRate = avctx->rc_max_rate; + check_cuda_errors(dl_fn->cu_device_get_count(&device_count)); - if (ctx->rc > 0) { - nvenc_override_rate_control(avctx, rc); - } else if (avctx->global_quality > 0) { - set_constqp(avctx, rc); - } else if (avctx->qmin >= 0 && avctx->qmax >= 0) { - rc->rateControlMode = NV_ENC_PARAMS_RC_VBR; - set_vbr(avctx, rc); + if (!device_count) { + av_log(avctx, AV_LOG_FATAL, "No CUDA capable devices found\n"); + goto error; } - if (avctx->rc_buffer_size > 0) - rc->vbvBufferSize = avctx->rc_buffer_size; + av_log(avctx, AV_LOG_VERBOSE, "%d CUDA capable devices found\n", device_count); - if (rc->averageBitRate > 0) - avctx->bit_rate = rc->averageBitRate; -} - -static int nvenc_setup_h264_config(AVCodecContext *avctx) -{ - NVENCContext *ctx = avctx->priv_data; - NV_ENC_CONFIG *cc = &ctx->config; - NV_ENC_CONFIG_H264 *h264 = &cc->encodeCodecConfig.h264Config; - NV_ENC_CONFIG_H264_VUI_PARAMETERS *vui = &h264->h264VUIParameters; + dl_fn->nvenc_device_count = 0; - vui->colourDescriptionPresentFlag = 1; - vui->videoSignalTypePresentFlag = 1; + for (i = 0; i < device_count; ++i) { + check_cuda_errors(dl_fn->cu_device_get(&cu_device, i)); + check_cuda_errors(dl_fn->cu_device_get_name(gpu_name, sizeof(gpu_name), cu_device)); + check_cuda_errors(dl_fn->cu_device_compute_capability(&smmajor, &smminor, cu_device)); - vui->colourMatrix = avctx->colorspace; - vui->colourPrimaries = avctx->color_primaries; - vui->transferCharacteristics = avctx->color_trc; + smver = (smmajor << 4) | smminor; - vui->videoFullRangeFlag = avctx->color_range == AVCOL_RANGE_JPEG; + av_log(avctx, AV_LOG_VERBOSE, "[ GPU #%d - < %s > has Compute SM %d.%d, NVENC %s ]\n", i, gpu_name, smmajor, smminor, (smver >= target_smver) ? "Available" : "Not Available"); - h264->disableSPSPPS = (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) ? 1 : 0; - h264->repeatSPSPPS = (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) ? 0 : 1; + if (smver >= target_smver) + dl_fn->nvenc_devices[dl_fn->nvenc_device_count++] = cu_device; + } - h264->maxNumRefFrames = avctx->refs; - h264->idrPeriod = cc->gopLength; + if (!dl_fn->nvenc_device_count) { + av_log(avctx, AV_LOG_FATAL, "No NVENC capable devices found\n"); + goto error; + } - if (ctx->profile) - avctx->profile = ctx->profile; + return 1; - if (avctx->pix_fmt == AV_PIX_FMT_YUV444P) - h264->chromaFormatIDC = 3; - else - h264->chromaFormatIDC = 1; +error: - switch (ctx->profile) { - case NV_ENC_H264_PROFILE_BASELINE: - cc->profileGUID = NV_ENC_H264_PROFILE_BASELINE_GUID; - break; - case NV_ENC_H264_PROFILE_MAIN: - cc->profileGUID = NV_ENC_H264_PROFILE_MAIN_GUID; - break; - case NV_ENC_H264_PROFILE_HIGH: - cc->profileGUID = NV_ENC_H264_PROFILE_HIGH_GUID; - break; - case NV_ENC_H264_PROFILE_HIGH_444: - cc->profileGUID = NV_ENC_H264_PROFILE_HIGH_444_GUID; - break; - case NV_ENC_H264_PROFILE_CONSTRAINED_HIGH: - cc->profileGUID = NV_ENC_H264_PROFILE_CONSTRAINED_HIGH_GUID; - break; - } - - h264->level = ctx->level; + dl_fn->nvenc_device_count = 0; return 0; } -static int nvenc_setup_hevc_config(AVCodecContext *avctx) +static av_cold int nvenc_dyload_nvenc(AVCodecContext *avctx) { - NVENCContext *ctx = avctx->priv_data; - NV_ENC_CONFIG *cc = &ctx->config; - NV_ENC_CONFIG_HEVC *hevc = &cc->encodeCodecConfig.hevcConfig; + PNVENCODEAPICREATEINSTANCE nvEncodeAPICreateInstance = 0; + NVENCSTATUS nvstatus; - hevc->disableSPSPPS = (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) ? 1 : 0; - hevc->repeatSPSPPS = (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) ? 0 : 1; + NvencContext *ctx = avctx->priv_data; + NvencDynLoadFunctions *dl_fn = &ctx->nvenc_dload_funcs; - hevc->maxNumRefFramesInDPB = avctx->refs; - hevc->idrPeriod = cc->gopLength; + if (!nvenc_check_cuda(avctx)) + return 0; - /* No other profile is supported in the current SDK version 5 */ - cc->profileGUID = NV_ENC_HEVC_PROFILE_MAIN_GUID; - avctx->profile = FF_PROFILE_HEVC_MAIN; + if (dl_fn->nvenc_lib) + return 1; - if (ctx->level) { - hevc->level = ctx->level; +#if defined(_WIN32) + if (sizeof(void*) == 8) { + dl_fn->nvenc_lib = LoadLibrary(TEXT("nvEncodeAPI64.dll")); } else { - hevc->level = NV_ENC_LEVEL_AUTOSELECT; + dl_fn->nvenc_lib = LoadLibrary(TEXT("nvEncodeAPI.dll")); } +#else + dl_fn->nvenc_lib = dlopen("libnvidia-encode.so.1", RTLD_LAZY); +#endif - if (ctx->tier) { - hevc->tier = ctx->tier; + if (!dl_fn->nvenc_lib) { + av_log(avctx, AV_LOG_FATAL, "Failed loading the nvenc library\n"); + goto error; } - return 0; -} -static int nvenc_setup_codec_config(AVCodecContext *avctx) -{ - switch (avctx->codec->id) { - case AV_CODEC_ID_H264: - return nvenc_setup_h264_config(avctx); - case AV_CODEC_ID_HEVC: - return nvenc_setup_hevc_config(avctx); + nvEncodeAPICreateInstance = (PNVENCODEAPICREATEINSTANCE)LOAD_FUNC(dl_fn->nvenc_lib, "NvEncodeAPICreateInstance"); + + if (!nvEncodeAPICreateInstance) { + av_log(avctx, AV_LOG_FATAL, "Failed to load nvenc entrypoint\n"); + goto error; } - return 0; -} -static int nvenc_setup_encoder(AVCodecContext *avctx) -{ - NVENCContext *ctx = avctx->priv_data; - NV_ENCODE_API_FUNCTION_LIST *nv = &ctx->nvel.nvenc_funcs; - NV_ENC_PRESET_CONFIG preset_cfg = { 0 }; - int ret; - - ctx->params.version = NV_ENC_INITIALIZE_PARAMS_VER; - - ctx->params.encodeHeight = avctx->height; - ctx->params.encodeWidth = avctx->width; - - if (avctx->sample_aspect_ratio.num && - avctx->sample_aspect_ratio.den && - (avctx->sample_aspect_ratio.num != 1 || - avctx->sample_aspect_ratio.den != 1)) { - av_reduce(&ctx->params.darWidth, - &ctx->params.darHeight, - avctx->width * avctx->sample_aspect_ratio.num, - avctx->height * avctx->sample_aspect_ratio.den, - INT_MAX / 8); - } else { - ctx->params.darHeight = avctx->height; - ctx->params.darWidth = avctx->width; + dl_fn->nvenc_funcs.version = NV_ENCODE_API_FUNCTION_LIST_VER; + + nvstatus = nvEncodeAPICreateInstance(&dl_fn->nvenc_funcs); + + if (nvstatus != NV_ENC_SUCCESS) { + av_log(avctx, AV_LOG_FATAL, "Failed to create nvenc instance\n"); + goto error; } - ctx->params.frameRateNum = avctx->time_base.den; - ctx->params.frameRateDen = avctx->time_base.num * avctx->ticks_per_frame; + av_log(avctx, AV_LOG_VERBOSE, "Nvenc initialized successfully\n"); - ctx->params.enableEncodeAsync = 0; - ctx->params.enablePTD = 1; + return 1; - ctx->params.encodeConfig = &ctx->config; +error: + if (dl_fn->nvenc_lib) + DL_CLOSE_FUNC(dl_fn->nvenc_lib); - nvec_map_preset(ctx); + dl_fn->nvenc_lib = NULL; - preset_cfg.version = NV_ENC_PRESET_CONFIG_VER; - preset_cfg.presetCfg.version = NV_ENC_CONFIG_VER; + return 0; +} - ret = nv->nvEncGetEncodePresetConfig(ctx->nvenc_ctx, - ctx->params.encodeGUID, - ctx->params.presetGUID, - &preset_cfg); - if (ret != NV_ENC_SUCCESS) { - av_log(avctx, AV_LOG_ERROR, - "Cannot get the preset configuration\n"); - return AVERROR_UNKNOWN; - } +static av_cold void nvenc_unload_nvenc(AVCodecContext *avctx) +{ + NvencContext *ctx = avctx->priv_data; + NvencDynLoadFunctions *dl_fn = &ctx->nvenc_dload_funcs; - memcpy(&ctx->config, &preset_cfg.presetCfg, sizeof(ctx->config)); + DL_CLOSE_FUNC(dl_fn->nvenc_lib); + dl_fn->nvenc_lib = NULL; - ctx->config.version = NV_ENC_CONFIG_VER; + dl_fn->nvenc_device_count = 0; - if (avctx->gop_size > 0) { - if (avctx->max_b_frames > 0) { - ctx->last_dts = -2; - /* 0 is intra-only, - * 1 is I/P only, - * 2 is one B Frame, - * 3 two B frames, and so on. */ - ctx->config.frameIntervalP = avctx->max_b_frames + 1; - } else if (avctx->max_b_frames == 0) { - ctx->config.frameIntervalP = 1; - } - ctx->config.gopLength = avctx->gop_size; - } else if (avctx->gop_size == 0) { - ctx->config.frameIntervalP = 0; - ctx->config.gopLength = 1; + DL_CLOSE_FUNC(dl_fn->cuda_lib); + dl_fn->cuda_lib = NULL; + + dl_fn->cu_init = NULL; + dl_fn->cu_device_get_count = NULL; + dl_fn->cu_device_get = NULL; + dl_fn->cu_device_get_name = NULL; + dl_fn->cu_device_compute_capability = NULL; + dl_fn->cu_ctx_create = NULL; + dl_fn->cu_ctx_pop_current = NULL; + dl_fn->cu_ctx_destroy = NULL; + + av_log(avctx, AV_LOG_VERBOSE, "Nvenc unloaded\n"); +} + +static av_cold int nvenc_encode_init(AVCodecContext *avctx) +{ + NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS encode_session_params = { 0 }; + NV_ENC_PRESET_CONFIG preset_config = { 0 }; + CUcontext cu_context_curr; + CUresult cu_res; + GUID encoder_preset = NV_ENC_PRESET_HQ_GUID; + GUID codec; + NVENCSTATUS nv_status = NV_ENC_SUCCESS; + int surfaceCount = 0; + int i, num_mbs; + int isLL = 0; + int res = 0; + int dw, dh; + + NvencContext *ctx = avctx->priv_data; + NvencDynLoadFunctions *dl_fn = &ctx->nvenc_dload_funcs; + NV_ENCODE_API_FUNCTION_LIST *p_nvenc = &dl_fn->nvenc_funcs; + + if (!nvenc_dyload_nvenc(avctx)) + return AVERROR_EXTERNAL; + + avctx->coded_frame = av_frame_alloc(); + if (!avctx->coded_frame) { + res = AVERROR(ENOMEM); + goto error; } - if (ctx->config.frameIntervalP > 1) - avctx->max_b_frames = ctx->config.frameIntervalP - 1; + ctx->last_dts = AV_NOPTS_VALUE; - nvenc_setup_rate_control(avctx); + ctx->encode_config.version = NV_ENC_CONFIG_VER; + ctx->init_encode_params.version = NV_ENC_INITIALIZE_PARAMS_VER; + preset_config.version = NV_ENC_PRESET_CONFIG_VER; + preset_config.presetCfg.version = NV_ENC_CONFIG_VER; + encode_session_params.version = NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS_VER; + encode_session_params.apiVersion = NVENCAPI_VERSION; - if (avctx->flags & CODEC_FLAG_INTERLACED_DCT) { - ctx->config.frameFieldMode = NV_ENC_PARAMS_FRAME_FIELD_MODE_FIELD; - } else { - ctx->config.frameFieldMode = NV_ENC_PARAMS_FRAME_FIELD_MODE_FRAME; + if (ctx->gpu >= dl_fn->nvenc_device_count) { + av_log(avctx, AV_LOG_FATAL, "Requested GPU %d, but only %d GPUs are available!\n", ctx->gpu, dl_fn->nvenc_device_count); + res = AVERROR(EINVAL); + goto error; } - if ((ret = nvenc_setup_codec_config(avctx)) < 0) - return ret; + ctx->cu_context = NULL; + cu_res = dl_fn->cu_ctx_create(&ctx->cu_context, 0, dl_fn->nvenc_devices[ctx->gpu]); - ret = nv->nvEncInitializeEncoder(ctx->nvenc_ctx, &ctx->params); - if (ret != NV_ENC_SUCCESS) { - av_log(avctx, AV_LOG_ERROR, "Cannot initialize the decoder"); - return AVERROR_UNKNOWN; + if (cu_res != CUDA_SUCCESS) { + av_log(avctx, AV_LOG_FATAL, "Failed creating CUDA context for NVENC: 0x%x\n", (int)cu_res); + res = AVERROR_EXTERNAL; + goto error; } - return 0; -} + cu_res = dl_fn->cu_ctx_pop_current(&cu_context_curr); -static int nvenc_alloc_surface(AVCodecContext *avctx, int idx) -{ - NVENCContext *ctx = avctx->priv_data; - NV_ENCODE_API_FUNCTION_LIST *nv = &ctx->nvel.nvenc_funcs; - int ret; - NV_ENC_CREATE_INPUT_BUFFER in_buffer = { 0 }; - NV_ENC_CREATE_BITSTREAM_BUFFER out_buffer = { 0 }; + if (cu_res != CUDA_SUCCESS) { + av_log(avctx, AV_LOG_FATAL, "Failed popping CUDA context: 0x%x\n", (int)cu_res); + res = AVERROR_EXTERNAL; + goto error; + } - in_buffer.version = NV_ENC_CREATE_INPUT_BUFFER_VER; - out_buffer.version = NV_ENC_CREATE_BITSTREAM_BUFFER_VER; + encode_session_params.device = ctx->cu_context; + encode_session_params.deviceType = NV_ENC_DEVICE_TYPE_CUDA; - in_buffer.width = avctx->width; - in_buffer.height = avctx->height; + nv_status = p_nvenc->nvEncOpenEncodeSessionEx(&encode_session_params, &ctx->nvencoder); + if (nv_status != NV_ENC_SUCCESS) { + ctx->nvencoder = NULL; + av_log(avctx, AV_LOG_FATAL, "OpenEncodeSessionEx failed: 0x%x - invalid license key?\n", (int)nv_status); + res = AVERROR_EXTERNAL; + goto error; + } - in_buffer.memoryHeap = NV_ENC_MEMORY_HEAP_SYSMEM_UNCACHED; + if (ctx->preset) { + if (!strcmp(ctx->preset, "hp")) { + encoder_preset = NV_ENC_PRESET_HP_GUID; + } else if (!strcmp(ctx->preset, "hq")) { + encoder_preset = NV_ENC_PRESET_HQ_GUID; + } else if (!strcmp(ctx->preset, "bd")) { + encoder_preset = NV_ENC_PRESET_BD_GUID; + } else if (!strcmp(ctx->preset, "ll")) { + encoder_preset = NV_ENC_PRESET_LOW_LATENCY_DEFAULT_GUID; + isLL = 1; + } else if (!strcmp(ctx->preset, "llhp")) { + encoder_preset = NV_ENC_PRESET_LOW_LATENCY_HP_GUID; + isLL = 1; + } else if (!strcmp(ctx->preset, "llhq")) { + encoder_preset = NV_ENC_PRESET_LOW_LATENCY_HQ_GUID; + isLL = 1; + } else if (!strcmp(ctx->preset, "default")) { + encoder_preset = NV_ENC_PRESET_DEFAULT_GUID; + } else { + av_log(avctx, AV_LOG_FATAL, "Preset \"%s\" is unknown! Supported presets: hp, hq, bd, ll, llhp, llhq, default\n", ctx->preset); + res = AVERROR(EINVAL); + goto error; + } + } - switch (avctx->pix_fmt) { - case AV_PIX_FMT_YUV420P: - in_buffer.bufferFmt = NV_ENC_BUFFER_FORMAT_YV12_PL; - break; - case AV_PIX_FMT_NV12: - in_buffer.bufferFmt = NV_ENC_BUFFER_FORMAT_NV12_PL; + switch (avctx->codec->id) { + case AV_CODEC_ID_H264: + codec = NV_ENC_CODEC_H264_GUID; break; - case AV_PIX_FMT_YUV444P: - in_buffer.bufferFmt = NV_ENC_BUFFER_FORMAT_YUV444_PL; + case AV_CODEC_ID_H265: + codec = NV_ENC_CODEC_HEVC_GUID; break; default: - return AVERROR_BUG; + av_log(avctx, AV_LOG_ERROR, "nvenc: Unknown codec name\n"); + res = AVERROR(EINVAL); + goto error; } - ret = nv->nvEncCreateInputBuffer(ctx->nvenc_ctx, &in_buffer); - if (ret != NV_ENC_SUCCESS) { - av_log(avctx, AV_LOG_ERROR, "CreateInputBuffer failed\n"); - return AVERROR_UNKNOWN; + nv_status = p_nvenc->nvEncGetEncodePresetConfig(ctx->nvencoder, codec, encoder_preset, &preset_config); + if (nv_status != NV_ENC_SUCCESS) { + av_log(avctx, AV_LOG_FATAL, "GetEncodePresetConfig failed: 0x%x\n", (int)nv_status); + res = AVERROR_EXTERNAL; + goto error; } - ctx->in[idx].in = in_buffer.inputBuffer; - ctx->in[idx].format = in_buffer.bufferFmt; - - /* 1MB is large enough to hold most output frames. - * NVENC increases this automaticaly if it's not enough. */ - out_buffer.size = BITSTREAM_BUFFER_SIZE; + ctx->init_encode_params.encodeGUID = codec; + ctx->init_encode_params.encodeHeight = avctx->height; + ctx->init_encode_params.encodeWidth = avctx->width; - out_buffer.memoryHeap = NV_ENC_MEMORY_HEAP_SYSMEM_UNCACHED; + if (avctx->sample_aspect_ratio.num && avctx->sample_aspect_ratio.den && + (avctx->sample_aspect_ratio.num != 1 || avctx->sample_aspect_ratio.num != 1)) { + av_reduce(&dw, &dh, + avctx->width * avctx->sample_aspect_ratio.num, + avctx->height * avctx->sample_aspect_ratio.den, + 1024 * 1024); + ctx->init_encode_params.darHeight = dh; + ctx->init_encode_params.darWidth = dw; + } else { + ctx->init_encode_params.darHeight = avctx->height; + ctx->init_encode_params.darWidth = avctx->width; + } - ret = nv->nvEncCreateBitstreamBuffer(ctx->nvenc_ctx, &out_buffer); - if (ret != NV_ENC_SUCCESS) { - av_log(avctx, AV_LOG_ERROR, "CreateBitstreamBuffer failed\n"); - return AVERROR_UNKNOWN; + // De-compensate for hardware, dubiously, trying to compensate for + // playback at 704 pixel width. + if (avctx->width == 720 && + (avctx->height == 480 || avctx->height == 576)) { + av_reduce(&dw, &dh, + ctx->init_encode_params.darWidth * 44, + ctx->init_encode_params.darHeight * 45, + 1024 * 1024); + ctx->init_encode_params.darHeight = dh; + ctx->init_encode_params.darWidth = dw; } - ctx->out[idx].out = out_buffer.bitstreamBuffer; - ctx->out[idx].busy = 0; + ctx->init_encode_params.frameRateNum = avctx->time_base.den; + ctx->init_encode_params.frameRateDen = avctx->time_base.num * avctx->ticks_per_frame; - return 0; -} + num_mbs = ((avctx->width + 15) >> 4) * ((avctx->height + 15) >> 4); + ctx->max_surface_count = (num_mbs >= 8160) ? 32 : 48; -static int nvenc_setup_surfaces(AVCodecContext *avctx) -{ - NVENCContext *ctx = avctx->priv_data; - int i, ret; + ctx->init_encode_params.enableEncodeAsync = 0; + ctx->init_encode_params.enablePTD = 1; - ctx->nb_surfaces = FFMAX(4 + avctx->max_b_frames, - ctx->nb_surfaces); + ctx->init_encode_params.presetGUID = encoder_preset; - ctx->in = av_mallocz(ctx->nb_surfaces * sizeof(*ctx->in)); - if (!ctx->in) - return AVERROR(ENOMEM); + ctx->init_encode_params.encodeConfig = &ctx->encode_config; + memcpy(&ctx->encode_config, &preset_config.presetCfg, sizeof(ctx->encode_config)); + ctx->encode_config.version = NV_ENC_CONFIG_VER; - ctx->out = av_mallocz(ctx->nb_surfaces * sizeof(*ctx->out)); - if (!ctx->out) - return AVERROR(ENOMEM); + if (avctx->refs >= 0) { + /* 0 means "let the hardware decide" */ + switch (avctx->codec->id) { + case AV_CODEC_ID_H264: + ctx->encode_config.encodeCodecConfig.h264Config.maxNumRefFrames = avctx->refs; + break; + case AV_CODEC_ID_H265: + ctx->encode_config.encodeCodecConfig.hevcConfig.maxNumRefFramesInDPB = avctx->refs; + break; + /* Earlier switch/case will return if unknown codec is passed. */ + } + } - ctx->timestamps = av_fifo_alloc(ctx->nb_surfaces * sizeof(int64_t)); - if (!ctx->timestamps) - return AVERROR(ENOMEM); - ctx->pending = av_fifo_alloc(ctx->nb_surfaces * sizeof(ctx->out)); - if (!ctx->pending) - return AVERROR(ENOMEM); - ctx->ready = av_fifo_alloc(ctx->nb_surfaces * sizeof(ctx->out)); - if (!ctx->ready) - return AVERROR(ENOMEM); + if (avctx->gop_size > 0) { + if (avctx->max_b_frames >= 0) { + /* 0 is intra-only, 1 is I/P only, 2 is one B Frame, 3 two B frames, and so on. */ + ctx->encode_config.frameIntervalP = avctx->max_b_frames + 1; + } - for (i = 0; i < ctx->nb_surfaces; i++) { - if ((ret = nvenc_alloc_surface(avctx, i)) < 0) - return ret; + ctx->encode_config.gopLength = avctx->gop_size; + switch (avctx->codec->id) { + case AV_CODEC_ID_H264: + ctx->encode_config.encodeCodecConfig.h264Config.idrPeriod = avctx->gop_size; + break; + case AV_CODEC_ID_H265: + ctx->encode_config.encodeCodecConfig.hevcConfig.idrPeriod = avctx->gop_size; + break; + /* Earlier switch/case will return if unknown codec is passed. */ + } + } else if (avctx->gop_size == 0) { + ctx->encode_config.frameIntervalP = 0; + ctx->encode_config.gopLength = 1; + switch (avctx->codec->id) { + case AV_CODEC_ID_H264: + ctx->encode_config.encodeCodecConfig.h264Config.idrPeriod = 1; + break; + case AV_CODEC_ID_H265: + ctx->encode_config.encodeCodecConfig.hevcConfig.idrPeriod = 1; + break; + /* Earlier switch/case will return if unknown codec is passed. */ + } } - return 0; -} + /* when there're b frames, set dts offset */ + if (ctx->encode_config.frameIntervalP >= 2) + ctx->last_dts = -2; -#define EXTRADATA_SIZE 512 + if (avctx->bit_rate > 0) + ctx->encode_config.rcParams.averageBitRate = avctx->bit_rate; -static int nvenc_setup_extradata(AVCodecContext *avctx) -{ - NVENCContext *ctx = avctx->priv_data; - NV_ENCODE_API_FUNCTION_LIST *nv = &ctx->nvel.nvenc_funcs; - NV_ENC_SEQUENCE_PARAM_PAYLOAD payload = { 0 }; - int ret; + if (avctx->rc_max_rate > 0) + ctx->encode_config.rcParams.maxBitRate = avctx->rc_max_rate; - avctx->extradata = av_mallocz(EXTRADATA_SIZE + FF_INPUT_BUFFER_PADDING_SIZE); - if (!avctx->extradata) - return AVERROR(ENOMEM); + if (ctx->cbr) { + if (!ctx->twopass) { + ctx->encode_config.rcParams.rateControlMode = NV_ENC_PARAMS_RC_CBR; + } else if (ctx->twopass == 1 || isLL) { + ctx->encode_config.rcParams.rateControlMode = NV_ENC_PARAMS_RC_2_PASS_QUALITY; - payload.version = NV_ENC_SEQUENCE_PARAM_PAYLOAD_VER; - payload.spsppsBuffer = avctx->extradata; - payload.inBufferSize = EXTRADATA_SIZE; - payload.outSPSPPSPayloadSize = &avctx->extradata_size; + if (avctx->codec->id == AV_CODEC_ID_H264) { + ctx->encode_config.encodeCodecConfig.h264Config.adaptiveTransformMode = NV_ENC_H264_ADAPTIVE_TRANSFORM_ENABLE; + ctx->encode_config.encodeCodecConfig.h264Config.fmoMode = NV_ENC_H264_FMO_DISABLE; + } - ret = nv->nvEncGetSequenceParams(ctx->nvenc_ctx, &payload); - if (ret != NV_ENC_SUCCESS) { - av_log(avctx, AV_LOG_ERROR, "Cannot get the extradata\n"); - return AVERROR_UNKNOWN; - } + if (!isLL) + av_log(avctx, AV_LOG_WARNING, "Twopass mode is only known to work with low latency (ll, llhq, llhp) presets.\n"); + } else { + ctx->encode_config.rcParams.rateControlMode = NV_ENC_PARAMS_RC_CBR; + } + } else if (avctx->global_quality > 0) { + ctx->encode_config.rcParams.rateControlMode = NV_ENC_PARAMS_RC_CONSTQP; + ctx->encode_config.rcParams.constQP.qpInterB = avctx->global_quality; + ctx->encode_config.rcParams.constQP.qpInterP = avctx->global_quality; + ctx->encode_config.rcParams.constQP.qpIntra = avctx->global_quality; - return 0; -} + avctx->qmin = -1; + avctx->qmax = -1; + } else if (avctx->qmin >= 0 && avctx->qmax >= 0) { + ctx->encode_config.rcParams.rateControlMode = NV_ENC_PARAMS_RC_VBR; -av_cold int ff_nvenc_encode_close(AVCodecContext *avctx) -{ - NVENCContext *ctx = avctx->priv_data; - NV_ENCODE_API_FUNCTION_LIST *nv = &ctx->nvel.nvenc_funcs; - int i; + ctx->encode_config.rcParams.enableMinQP = 1; + ctx->encode_config.rcParams.enableMaxQP = 1; - av_frame_free(&avctx->coded_frame); + ctx->encode_config.rcParams.minQP.qpInterB = avctx->qmin; + ctx->encode_config.rcParams.minQP.qpInterP = avctx->qmin; + ctx->encode_config.rcParams.minQP.qpIntra = avctx->qmin; - if (ctx->in) { - for (i = 0; i < ctx->nb_surfaces; ++i) { - nv->nvEncDestroyInputBuffer(ctx->nvenc_ctx, ctx->in[i].in); - nv->nvEncDestroyBitstreamBuffer(ctx->nvenc_ctx, ctx->out[i].out); - } + ctx->encode_config.rcParams.maxQP.qpInterB = avctx->qmax; + ctx->encode_config.rcParams.maxQP.qpInterP = avctx->qmax; + ctx->encode_config.rcParams.maxQP.qpIntra = avctx->qmax; } - av_freep(&ctx->in); - av_freep(&ctx->out); + if (avctx->rc_buffer_size > 0) + ctx->encode_config.rcParams.vbvBufferSize = avctx->rc_buffer_size; - if (ctx->nvenc_ctx) - nv->nvEncDestroyEncoder(ctx->nvenc_ctx); + if (avctx->flags & CODEC_FLAG_INTERLACED_DCT) { + ctx->encode_config.frameFieldMode = NV_ENC_PARAMS_FRAME_FIELD_MODE_FIELD; + } else { + ctx->encode_config.frameFieldMode = NV_ENC_PARAMS_FRAME_FIELD_MODE_FRAME; + } - if (ctx->cu_context) - ctx->nvel.cu_ctx_destroy(ctx->cu_context); + switch (avctx->codec->id) { + case AV_CODEC_ID_H264: + ctx->encode_config.encodeCodecConfig.h264Config.h264VUIParameters.colourDescriptionPresentFlag = 1; + ctx->encode_config.encodeCodecConfig.h264Config.h264VUIParameters.videoSignalTypePresentFlag = 1; + + ctx->encode_config.encodeCodecConfig.h264Config.h264VUIParameters.colourMatrix = avctx->colorspace; + ctx->encode_config.encodeCodecConfig.h264Config.h264VUIParameters.colourPrimaries = avctx->color_primaries; + ctx->encode_config.encodeCodecConfig.h264Config.h264VUIParameters.transferCharacteristics = avctx->color_trc; + + ctx->encode_config.encodeCodecConfig.h264Config.h264VUIParameters.videoFullRangeFlag = avctx->color_range == AVCOL_RANGE_JPEG; + + ctx->encode_config.encodeCodecConfig.h264Config.disableSPSPPS = (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) ? 1 : 0; + ctx->encode_config.encodeCodecConfig.h264Config.repeatSPSPPS = (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) ? 0 : 1; + + if (!ctx->profile) { + switch (avctx->profile) { + case FF_PROFILE_H264_BASELINE: + ctx->encode_config.profileGUID = NV_ENC_H264_PROFILE_BASELINE_GUID; + break; + case FF_PROFILE_H264_MAIN: + ctx->encode_config.profileGUID = NV_ENC_H264_PROFILE_MAIN_GUID; + break; + case FF_PROFILE_H264_HIGH: + case FF_PROFILE_UNKNOWN: + ctx->encode_config.profileGUID = NV_ENC_H264_PROFILE_HIGH_GUID; + break; + default: + av_log(avctx, AV_LOG_WARNING, "Unsupported profile requested, falling back to high\n"); + ctx->encode_config.profileGUID = NV_ENC_H264_PROFILE_HIGH_GUID; + break; + } + } else { + if (!strcmp(ctx->profile, "high")) { + ctx->encode_config.profileGUID = NV_ENC_H264_PROFILE_HIGH_GUID; + avctx->profile = FF_PROFILE_H264_HIGH; + } else if (!strcmp(ctx->profile, "main")) { + ctx->encode_config.profileGUID = NV_ENC_H264_PROFILE_MAIN_GUID; + avctx->profile = FF_PROFILE_H264_MAIN; + } else if (!strcmp(ctx->profile, "baseline")) { + ctx->encode_config.profileGUID = NV_ENC_H264_PROFILE_BASELINE_GUID; + avctx->profile = FF_PROFILE_H264_BASELINE; + } else { + av_log(avctx, AV_LOG_FATAL, "Profile \"%s\" is unknown! Supported profiles: high, main, baseline\n", ctx->profile); + res = AVERROR(EINVAL); + goto error; + } + } - if (ctx->nvel.nvenc) - dlclose(ctx->nvel.nvenc); + if (ctx->level) { + res = input_string_to_uint32(avctx, nvenc_h264_level_pairs, ctx->level, &ctx->encode_config.encodeCodecConfig.h264Config.level); - if (ctx->nvel.cuda) - dlclose(ctx->nvel.cuda); + if (res) { + av_log(avctx, AV_LOG_FATAL, "Level \"%s\" is unknown! Supported levels: auto, 1, 1b, 1.1, 1.2, 1.3, 2, 2.1, 2.2, 3, 3.1, 3.2, 4, 4.1, 4.2, 5, 5.1\n", ctx->level); + goto error; + } + } else { + ctx->encode_config.encodeCodecConfig.h264Config.level = NV_ENC_LEVEL_AUTOSELECT; + } - return 0; -} + break; + case AV_CODEC_ID_H265: + ctx->encode_config.encodeCodecConfig.hevcConfig.disableSPSPPS = (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) ? 1 : 0; + ctx->encode_config.encodeCodecConfig.hevcConfig.repeatSPSPPS = (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) ? 0 : 1; -av_cold int ff_nvenc_encode_init(AVCodecContext *avctx) -{ - int ret; + /* No other profile is supported in the current SDK version 5 */ + ctx->encode_config.profileGUID = NV_ENC_HEVC_PROFILE_MAIN_GUID; + avctx->profile = FF_PROFILE_HEVC_MAIN; - if ((ret = nvenc_load_libraries(avctx)) < 0) - return ret; + if (ctx->level) { + res = input_string_to_uint32(avctx, nvenc_hevc_level_pairs, ctx->level, &ctx->encode_config.encodeCodecConfig.hevcConfig.level); - if ((ret = nvenc_setup_device(avctx)) < 0) - return ret; + if (res) { + av_log(avctx, AV_LOG_FATAL, "Level \"%s\" is unknown! Supported levels: auto, 1, 2, 2.1, 3, 3.1, 4, 4.1, 5, 5.1, 5.2, 6, 6.1, 6.2\n", ctx->level); + goto error; + } + } else { + ctx->encode_config.encodeCodecConfig.hevcConfig.level = NV_ENC_LEVEL_AUTOSELECT; + } - if ((ret = nvenc_setup_encoder(avctx)) < 0) - return ret; + if (ctx->tier) { + if (!strcmp(ctx->tier, "main")) { + ctx->encode_config.encodeCodecConfig.hevcConfig.tier = NV_ENC_TIER_HEVC_MAIN; + } else if (!strcmp(ctx->tier, "high")) { + ctx->encode_config.encodeCodecConfig.hevcConfig.tier = NV_ENC_TIER_HEVC_HIGH; + } else { + av_log(avctx, AV_LOG_FATAL, "Tier \"%s\" is unknown! Supported tiers: main, high\n", ctx->tier); + res = AVERROR(EINVAL); + goto error; + } + } - if ((ret = nvenc_setup_surfaces(avctx)) < 0) - return ret; + break; + /* Earlier switch/case will return if unknown codec is passed. */ + } - if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) { - if ((ret = nvenc_setup_extradata(avctx)) < 0) - return ret; + nv_status = p_nvenc->nvEncInitializeEncoder(ctx->nvencoder, &ctx->init_encode_params); + if (nv_status != NV_ENC_SUCCESS) { + av_log(avctx, AV_LOG_FATAL, "InitializeEncoder failed: 0x%x\n", (int)nv_status); + res = AVERROR_EXTERNAL; + goto error; } - avctx->coded_frame = av_frame_alloc(); - if (!avctx->coded_frame) - return AVERROR(ENOMEM); + ctx->input_surfaces = av_malloc(ctx->max_surface_count * sizeof(*ctx->input_surfaces)); - return 0; -} + if (!ctx->input_surfaces) { + res = AVERROR(ENOMEM); + goto error; + } -static NVENCInputSurface *get_input_surface(NVENCContext *ctx) -{ - int i; + ctx->output_surfaces = av_malloc(ctx->max_surface_count * sizeof(*ctx->output_surfaces)); - for (i = 0; i < ctx->nb_surfaces; i++) { - if (!ctx->in[i].locked) { - ctx->in[i].locked = 1; - return &ctx->in[i]; - } + if (!ctx->output_surfaces) { + res = AVERROR(ENOMEM); + goto error; } - return NULL; -} + for (surfaceCount = 0; surfaceCount < ctx->max_surface_count; ++surfaceCount) { + NV_ENC_CREATE_INPUT_BUFFER allocSurf = { 0 }; + NV_ENC_CREATE_BITSTREAM_BUFFER allocOut = { 0 }; + allocSurf.version = NV_ENC_CREATE_INPUT_BUFFER_VER; + allocOut.version = NV_ENC_CREATE_BITSTREAM_BUFFER_VER; -static NVENCOutputSurface *get_output_surface(NVENCContext *ctx) -{ - int i; + allocSurf.width = (avctx->width + 31) & ~31; + allocSurf.height = (avctx->height + 31) & ~31; + + allocSurf.memoryHeap = NV_ENC_MEMORY_HEAP_SYSMEM_CACHED; - for (i = 0; i < ctx->nb_surfaces; i++) { - if (!ctx->out[i].busy) { - return &ctx->out[i]; + switch (avctx->pix_fmt) { + case AV_PIX_FMT_YUV420P: + allocSurf.bufferFmt = NV_ENC_BUFFER_FORMAT_YV12_PL; + break; + + case AV_PIX_FMT_NV12: + allocSurf.bufferFmt = NV_ENC_BUFFER_FORMAT_NV12_PL; + break; + + case AV_PIX_FMT_YUV444P: + allocSurf.bufferFmt = NV_ENC_BUFFER_FORMAT_YUV444_PL; + break; + + default: + av_log(avctx, AV_LOG_FATAL, "Invalid input pixel format\n"); + res = AVERROR(EINVAL); + goto error; } - } - return NULL; -} + nv_status = p_nvenc->nvEncCreateInputBuffer(ctx->nvencoder, &allocSurf); + if (nv_status != NV_ENC_SUCCESS) { + av_log(avctx, AV_LOG_FATAL, "CreateInputBuffer failed\n"); + res = AVERROR_EXTERNAL; + goto error; + } -static int nvenc_copy_frame(NV_ENC_LOCK_INPUT_BUFFER *in, const AVFrame *frame) -{ - uint8_t *buf = in->bufferDataPtr; - int off = frame->height * in->pitch; + ctx->input_surfaces[surfaceCount].lockCount = 0; + ctx->input_surfaces[surfaceCount].input_surface = allocSurf.inputBuffer; + ctx->input_surfaces[surfaceCount].format = allocSurf.bufferFmt; + ctx->input_surfaces[surfaceCount].width = allocSurf.width; + ctx->input_surfaces[surfaceCount].height = allocSurf.height; - switch (frame->format) { - case AV_PIX_FMT_YUV420P: - av_image_copy_plane(buf, in->pitch, - frame->data[0], frame->linesize[0], - frame->width, frame->height); - buf += off; + /* 1MB is large enough to hold most output frames. NVENC increases this automaticaly if it's not enough. */ + allocOut.size = 1024 * 1024; - av_image_copy_plane(buf, in->pitch >> 1, - frame->data[2], frame->linesize[2], - frame->width >> 1, frame->height >> 1); + allocOut.memoryHeap = NV_ENC_MEMORY_HEAP_SYSMEM_CACHED; - buf += off >> 2; + nv_status = p_nvenc->nvEncCreateBitstreamBuffer(ctx->nvencoder, &allocOut); + if (nv_status != NV_ENC_SUCCESS) { + av_log(avctx, AV_LOG_FATAL, "CreateBitstreamBuffer failed\n"); + ctx->output_surfaces[surfaceCount++].output_surface = NULL; + res = AVERROR_EXTERNAL; + goto error; + } - av_image_copy_plane(buf, in->pitch >> 1, - frame->data[1], frame->linesize[1], - frame->width >> 1, frame->height >> 1); - break; - case AV_PIX_FMT_NV12: - av_image_copy_plane(buf, in->pitch, - frame->data[0], frame->linesize[0], - frame->width, frame->height); - buf += off; - - av_image_copy_plane(buf, in->pitch, - frame->data[1], frame->linesize[1], - frame->width, frame->height >> 1); - break; - case AV_PIX_FMT_YUV444P: - av_image_copy_plane(buf, in->pitch, - frame->data[0], frame->linesize[0], - frame->width, frame->height); - buf += off; - - av_image_copy_plane(buf, in->pitch, - frame->data[1], frame->linesize[1], - frame->width, frame->height); - buf += off; - - av_image_copy_plane(buf, in->pitch, - frame->data[2], frame->linesize[2], - frame->width, frame->height); - break; - default: - return AVERROR_BUG; + ctx->output_surfaces[surfaceCount].output_surface = allocOut.bitstreamBuffer; + ctx->output_surfaces[surfaceCount].size = allocOut.size; + ctx->output_surfaces[surfaceCount].busy = 0; } - return 0; -} + if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) { + uint32_t outSize = 0; + char tmpHeader[256]; + NV_ENC_SEQUENCE_PARAM_PAYLOAD payload = { 0 }; + payload.version = NV_ENC_SEQUENCE_PARAM_PAYLOAD_VER; + + payload.spsppsBuffer = tmpHeader; + payload.inBufferSize = sizeof(tmpHeader); + payload.outSPSPPSPayloadSize = &outSize; + + nv_status = p_nvenc->nvEncGetSequenceParams(ctx->nvencoder, &payload); + if (nv_status != NV_ENC_SUCCESS) { + av_log(avctx, AV_LOG_FATAL, "GetSequenceParams failed\n"); + goto error; + } -static int nvenc_enqueue_frame(AVCodecContext *avctx, const AVFrame *frame, - NVENCInputSurface **in_surf) -{ - NVENCContext *ctx = avctx->priv_data; - NV_ENCODE_API_FUNCTION_LIST *nv = &ctx->nvel.nvenc_funcs; - NV_ENC_LOCK_INPUT_BUFFER params = { 0 }; - NVENCInputSurface *in = get_input_surface(ctx); - int ret; + avctx->extradata_size = outSize; + avctx->extradata = av_mallocz(outSize + FF_INPUT_BUFFER_PADDING_SIZE); + + if (!avctx->extradata) { + res = AVERROR(ENOMEM); + goto error; + } - if (!in) - return AVERROR_BUG; + memcpy(avctx->extradata, tmpHeader, outSize); + } - params.version = NV_ENC_LOCK_INPUT_BUFFER_VER; - params.inputBuffer = in->in; + if (ctx->encode_config.frameIntervalP > 1) + avctx->has_b_frames = 2; + if (ctx->encode_config.rcParams.averageBitRate > 0) + avctx->bit_rate = ctx->encode_config.rcParams.averageBitRate; - ret = nv->nvEncLockInputBuffer(ctx->nvenc_ctx, ¶ms); - if (ret != NV_ENC_SUCCESS) { - av_log(avctx, AV_LOG_ERROR, "Cannot lock the buffer %p.\n", - in); - return AVERROR_UNKNOWN; - } + return 0; - ret = nvenc_copy_frame(¶ms, frame); - if (ret < 0) - goto fail; +error: - ret = nv->nvEncUnlockInputBuffer(ctx->nvenc_ctx, in->in); - if (ret != NV_ENC_SUCCESS) { - av_log(avctx, AV_LOG_ERROR, "Cannot unlock the buffer %p.\n", - in); - return AVERROR_UNKNOWN; + for (i = 0; i < surfaceCount; ++i) { + p_nvenc->nvEncDestroyInputBuffer(ctx->nvencoder, ctx->input_surfaces[i].input_surface); + if (ctx->output_surfaces[i].output_surface) + p_nvenc->nvEncDestroyBitstreamBuffer(ctx->nvencoder, ctx->output_surfaces[i].output_surface); } - *in_surf = in; + if (ctx->nvencoder) + p_nvenc->nvEncDestroyEncoder(ctx->nvencoder); - return 0; + if (ctx->cu_context) + dl_fn->cu_ctx_destroy(ctx->cu_context); -fail: - nv->nvEncUnlockInputBuffer(ctx->nvenc_ctx, in->in); + av_frame_free(&avctx->coded_frame); - return ret; -} + nvenc_unload_nvenc(avctx); -static void nvenc_codec_specific_pic_params(AVCodecContext *avctx, - NV_ENC_PIC_PARAMS *params) -{ - NVENCContext *ctx = avctx->priv_data; + ctx->nvencoder = NULL; + ctx->cu_context = NULL; - switch (avctx->codec->id) { - case AV_CODEC_ID_H264: - params->codecPicParams.h264PicParams.sliceMode = - ctx->config.encodeCodecConfig.h264Config.sliceMode; - params->codecPicParams.h264PicParams.sliceModeData = - ctx->config.encodeCodecConfig.h264Config.sliceModeData; - break; - case AV_CODEC_ID_HEVC: - params->codecPicParams.hevcPicParams.sliceMode = - ctx->config.encodeCodecConfig.hevcConfig.sliceMode; - params->codecPicParams.hevcPicParams.sliceModeData = - ctx->config.encodeCodecConfig.hevcConfig.sliceModeData; - break; - } + return res; } -static inline int nvenc_enqueue_timestamp(AVFifoBuffer *f, int64_t pts) +static av_cold int nvenc_encode_close(AVCodecContext *avctx) { - return av_fifo_generic_write(f, &pts, sizeof(pts), NULL); -} + NvencContext *ctx = avctx->priv_data; + NvencDynLoadFunctions *dl_fn = &ctx->nvenc_dload_funcs; + NV_ENCODE_API_FUNCTION_LIST *p_nvenc = &dl_fn->nvenc_funcs; + int i; -static inline int nvenc_dequeue_timestamp(AVFifoBuffer *f, int64_t *pts) -{ - return av_fifo_generic_read(f, pts, sizeof(*pts), NULL); -} + av_freep(&ctx->timestamp_list.data); + av_freep(&ctx->output_surface_ready_queue.data); + av_freep(&ctx->output_surface_queue.data); -static inline int nvenc_enqueue_surface(AVFifoBuffer *f, - NVENCOutputSurface *surf) -{ - surf->busy = 1; - return av_fifo_generic_write(f, &surf, sizeof(surf), NULL); -} + for (i = 0; i < ctx->max_surface_count; ++i) { + p_nvenc->nvEncDestroyInputBuffer(ctx->nvencoder, ctx->input_surfaces[i].input_surface); + p_nvenc->nvEncDestroyBitstreamBuffer(ctx->nvencoder, ctx->output_surfaces[i].output_surface); + } + ctx->max_surface_count = 0; -static inline int nvenc_dequeue_surface(AVFifoBuffer *f, - NVENCOutputSurface **surf) -{ - return av_fifo_generic_read(f, surf, sizeof(*surf), NULL); -} + p_nvenc->nvEncDestroyEncoder(ctx->nvencoder); + ctx->nvencoder = NULL; -static int nvenc_set_timestamp(NVENCContext *ctx, - NV_ENC_LOCK_BITSTREAM *params, - AVPacket *pkt) -{ - pkt->pts = params->outputTimeStamp; - pkt->duration = params->outputDuration; + dl_fn->cu_ctx_destroy(ctx->cu_context); + ctx->cu_context = NULL; + + nvenc_unload_nvenc(avctx); + + av_frame_free(&avctx->coded_frame); - return nvenc_dequeue_timestamp(ctx->timestamps, &pkt->dts); + return 0; } -static int nvenc_get_frame(AVCodecContext *avctx, AVPacket *pkt) +static int process_output_surface(AVCodecContext *avctx, AVPacket *pkt, AVFrame *coded_frame, NvencOutputSurface *tmpoutsurf) { - NVENCContext *ctx = avctx->priv_data; - NV_ENCODE_API_FUNCTION_LIST *nv = &ctx->nvel.nvenc_funcs; - NV_ENC_LOCK_BITSTREAM params = { 0 }; - NVENCOutputSurface *out = NULL; - int ret; + NvencContext *ctx = avctx->priv_data; + NvencDynLoadFunctions *dl_fn = &ctx->nvenc_dload_funcs; + NV_ENCODE_API_FUNCTION_LIST *p_nvenc = &dl_fn->nvenc_funcs; + + uint32_t slice_mode_data; + uint32_t *slice_offsets; + NV_ENC_LOCK_BITSTREAM lock_params = { 0 }; + NVENCSTATUS nv_status; + int res = 0; - ret = nvenc_dequeue_surface(ctx->pending, &out); - if (ret) - return ret; + switch (avctx->codec->id) { + case AV_CODEC_ID_H264: + slice_mode_data = ctx->encode_config.encodeCodecConfig.h264Config.sliceModeData; + break; + case AV_CODEC_ID_H265: + slice_mode_data = ctx->encode_config.encodeCodecConfig.hevcConfig.sliceModeData; + break; + default: + av_log(avctx, AV_LOG_ERROR, "nvenc: Unknown codec name\n"); + res = AVERROR(EINVAL); + goto error; + } + slice_offsets = av_mallocz(slice_mode_data * sizeof(*slice_offsets)); - params.version = NV_ENC_LOCK_BITSTREAM_VER; - params.outputBitstream = out->out; + if (!slice_offsets) + return AVERROR(ENOMEM); - ret = nv->nvEncLockBitstream(ctx->nvenc_ctx, ¶ms); - if (ret < 0) - return AVERROR_UNKNOWN; + lock_params.version = NV_ENC_LOCK_BITSTREAM_VER; - ret = ff_alloc_packet(pkt, params.bitstreamSizeInBytes); - if (ret < 0) - return ret; + lock_params.doNotWait = 0; + lock_params.outputBitstream = tmpoutsurf->output_surface; + lock_params.sliceOffsets = slice_offsets; - memcpy(pkt->data, params.bitstreamBufferPtr, pkt->size); + nv_status = p_nvenc->nvEncLockBitstream(ctx->nvencoder, &lock_params); + if (nv_status != NV_ENC_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed locking bitstream buffer\n"); + res = AVERROR_EXTERNAL; + goto error; + } - ret = nv->nvEncUnlockBitstream(ctx->nvenc_ctx, out->out); - if (ret < 0) - return AVERROR_UNKNOWN; + if (res = ff_alloc_packet2(avctx, pkt, lock_params.bitstreamSizeInBytes)) { + p_nvenc->nvEncUnlockBitstream(ctx->nvencoder, tmpoutsurf->output_surface); + goto error; + } - out->busy = out->in->locked = 0; + memcpy(pkt->data, lock_params.bitstreamBufferPtr, lock_params.bitstreamSizeInBytes); - ret = nvenc_set_timestamp(ctx, ¶ms, pkt); - if (ret < 0) - return ret; + nv_status = p_nvenc->nvEncUnlockBitstream(ctx->nvencoder, tmpoutsurf->output_surface); + if (nv_status != NV_ENC_SUCCESS) + av_log(avctx, AV_LOG_ERROR, "Failed unlocking bitstream buffer, expect the gates of mordor to open\n"); - switch (params.pictureType) { + switch (lock_params.pictureType) { case NV_ENC_PIC_TYPE_IDR: pkt->flags |= AV_PKT_FLAG_KEY; - case NV_ENC_PIC_TYPE_INTRA_REFRESH: case NV_ENC_PIC_TYPE_I: avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I; break; @@ -1056,77 +1135,238 @@ static int nvenc_get_frame(AVCodecContext *avctx, AVPacket *pkt) case NV_ENC_PIC_TYPE_BI: avctx->coded_frame->pict_type = AV_PICTURE_TYPE_BI; break; + default: + av_log(avctx, AV_LOG_ERROR, "Unknown picture type encountered, expect the output to be broken.\n"); + av_log(avctx, AV_LOG_ERROR, "Please report this error and include as much information on how to reproduce it as possible.\n"); + res = AVERROR_EXTERNAL; + goto error; } + pkt->pts = lock_params.outputTimeStamp; + pkt->dts = timestamp_queue_dequeue(&ctx->timestamp_list); + + /* when there're b frame(s), set dts offset */ + if (ctx->encode_config.frameIntervalP >= 2) + pkt->dts -= 1; + + if (pkt->dts > pkt->pts) + pkt->dts = pkt->pts; + + if (ctx->last_dts != AV_NOPTS_VALUE && pkt->dts <= ctx->last_dts) + pkt->dts = ctx->last_dts + 1; + + ctx->last_dts = pkt->dts; + + av_free(slice_offsets); + return 0; + +error: + + av_free(slice_offsets); + timestamp_queue_dequeue(&ctx->timestamp_list); + + return res; } -int ff_nvenc_encode_frame(AVCodecContext *avctx, AVPacket *pkt, - const AVFrame *frame, int *got_packet) +static int nvenc_encode_frame(AVCodecContext *avctx, AVPacket *pkt, + const AVFrame *frame, int *got_packet) { - NVENCContext *ctx = avctx->priv_data; - NV_ENCODE_API_FUNCTION_LIST *nv = &ctx->nvel.nvenc_funcs; - NV_ENC_PIC_PARAMS params = { 0 }; - NVENCInputSurface *in = NULL; - NVENCOutputSurface *out = NULL; - int ret; + NVENCSTATUS nv_status; + NvencOutputSurface *tmpoutsurf; + int res, i = 0; - params.version = NV_ENC_PIC_PARAMS_VER; + NvencContext *ctx = avctx->priv_data; + NvencDynLoadFunctions *dl_fn = &ctx->nvenc_dload_funcs; + NV_ENCODE_API_FUNCTION_LIST *p_nvenc = &dl_fn->nvenc_funcs; + + NV_ENC_PIC_PARAMS pic_params = { 0 }; + pic_params.version = NV_ENC_PIC_PARAMS_VER; if (frame) { - ret = nvenc_enqueue_frame(avctx, frame, &in); - if (ret < 0) - return ret; - out = get_output_surface(ctx); - if (!out) - return AVERROR_BUG; - - out->in = in; - - params.inputBuffer = in->in; - params.bufferFmt = in->format; - params.inputWidth = frame->width; - params.inputHeight = frame->height; - params.outputBitstream = out->out; - params.inputTimeStamp = frame->pts; + NV_ENC_LOCK_INPUT_BUFFER lockBufferParams = { 0 }; + NvencInputSurface *inSurf = NULL; + + for (i = 0; i < ctx->max_surface_count; ++i) { + if (!ctx->input_surfaces[i].lockCount) { + inSurf = &ctx->input_surfaces[i]; + break; + } + } + + av_assert0(inSurf); + + inSurf->lockCount = 1; + + lockBufferParams.version = NV_ENC_LOCK_INPUT_BUFFER_VER; + lockBufferParams.inputBuffer = inSurf->input_surface; + + nv_status = p_nvenc->nvEncLockInputBuffer(ctx->nvencoder, &lockBufferParams); + if (nv_status != NV_ENC_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed locking nvenc input buffer\n"); + return 0; + } + + if (avctx->pix_fmt == AV_PIX_FMT_YUV420P) { + uint8_t *buf = lockBufferParams.bufferDataPtr; + + av_image_copy_plane(buf, lockBufferParams.pitch, + frame->data[0], frame->linesize[0], + avctx->width, avctx->height); + + buf += inSurf->height * lockBufferParams.pitch; + + av_image_copy_plane(buf, lockBufferParams.pitch >> 1, + frame->data[2], frame->linesize[2], + avctx->width >> 1, avctx->height >> 1); + + buf += (inSurf->height * lockBufferParams.pitch) >> 2; + + av_image_copy_plane(buf, lockBufferParams.pitch >> 1, + frame->data[1], frame->linesize[1], + avctx->width >> 1, avctx->height >> 1); + } else if (avctx->pix_fmt == AV_PIX_FMT_NV12) { + uint8_t *buf = lockBufferParams.bufferDataPtr; + + av_image_copy_plane(buf, lockBufferParams.pitch, + frame->data[0], frame->linesize[0], + avctx->width, avctx->height); + + buf += inSurf->height * lockBufferParams.pitch; + + av_image_copy_plane(buf, lockBufferParams.pitch, + frame->data[1], frame->linesize[1], + avctx->width, avctx->height >> 1); + } else if (avctx->pix_fmt == AV_PIX_FMT_YUV444P) { + uint8_t *buf = lockBufferParams.bufferDataPtr; + + av_image_copy_plane(buf, lockBufferParams.pitch, + frame->data[0], frame->linesize[0], + avctx->width, avctx->height); + + buf += inSurf->height * lockBufferParams.pitch; + + av_image_copy_plane(buf, lockBufferParams.pitch, + frame->data[1], frame->linesize[1], + avctx->width, avctx->height); + + buf += inSurf->height * lockBufferParams.pitch; + + av_image_copy_plane(buf, lockBufferParams.pitch, + frame->data[2], frame->linesize[2], + avctx->width, avctx->height); + } else { + av_log(avctx, AV_LOG_FATAL, "Invalid pixel format!\n"); + return AVERROR(EINVAL); + } + + nv_status = p_nvenc->nvEncUnlockInputBuffer(ctx->nvencoder, inSurf->input_surface); + if (nv_status != NV_ENC_SUCCESS) { + av_log(avctx, AV_LOG_FATAL, "Failed unlocking input buffer!\n"); + return AVERROR_EXTERNAL; + } + + for (i = 0; i < ctx->max_surface_count; ++i) + if (!ctx->output_surfaces[i].busy) + break; + + if (i == ctx->max_surface_count) { + inSurf->lockCount = 0; + av_log(avctx, AV_LOG_FATAL, "No free output surface found!\n"); + return AVERROR_EXTERNAL; + } + + ctx->output_surfaces[i].input_surface = inSurf; + + pic_params.inputBuffer = inSurf->input_surface; + pic_params.bufferFmt = inSurf->format; + pic_params.inputWidth = avctx->width; + pic_params.inputHeight = avctx->height; + pic_params.outputBitstream = ctx->output_surfaces[i].output_surface; + pic_params.completionEvent = 0; if (avctx->flags & CODEC_FLAG_INTERLACED_DCT) { - if (frame->top_field_first) - params.pictureStruct = NV_ENC_PIC_STRUCT_FIELD_TOP_BOTTOM; - else - params.pictureStruct = NV_ENC_PIC_STRUCT_FIELD_BOTTOM_TOP; + if (frame->top_field_first) { + pic_params.pictureStruct = NV_ENC_PIC_STRUCT_FIELD_TOP_BOTTOM; + } else { + pic_params.pictureStruct = NV_ENC_PIC_STRUCT_FIELD_BOTTOM_TOP; + } } else { - params.pictureStruct = NV_ENC_PIC_STRUCT_FRAME; + pic_params.pictureStruct = NV_ENC_PIC_STRUCT_FRAME; + } + + pic_params.encodePicFlags = 0; + pic_params.inputTimeStamp = frame->pts; + pic_params.inputDuration = 0; + switch (avctx->codec->id) { + case AV_CODEC_ID_H264: + pic_params.codecPicParams.h264PicParams.sliceMode = ctx->encode_config.encodeCodecConfig.h264Config.sliceMode; + pic_params.codecPicParams.h264PicParams.sliceModeData = ctx->encode_config.encodeCodecConfig.h264Config.sliceModeData; + break; + case AV_CODEC_ID_H265: + pic_params.codecPicParams.hevcPicParams.sliceMode = ctx->encode_config.encodeCodecConfig.hevcConfig.sliceMode; + pic_params.codecPicParams.hevcPicParams.sliceModeData = ctx->encode_config.encodeCodecConfig.hevcConfig.sliceModeData; + break; + default: + av_log(avctx, AV_LOG_ERROR, "nvenc: Unknown codec name\n"); + return AVERROR(EINVAL); } - nvenc_codec_specific_pic_params(avctx, ¶ms); + res = timestamp_queue_enqueue(&ctx->timestamp_list, frame->pts); - ret = nvenc_enqueue_timestamp(ctx->timestamps, frame->pts); - if (ret < 0) - return ret; + if (res) + return res; } else { - params.encodePicFlags = NV_ENC_PIC_FLAG_EOS; + pic_params.encodePicFlags = NV_ENC_PIC_FLAG_EOS; } - ret = nv->nvEncEncodePicture(ctx->nvenc_ctx, ¶ms); + nv_status = p_nvenc->nvEncEncodePicture(ctx->nvencoder, &pic_params); - if (ret != NV_ENC_SUCCESS && - ret != NV_ENC_ERR_NEED_MORE_INPUT) { + if (frame && nv_status == NV_ENC_ERR_NEED_MORE_INPUT) { + res = out_surf_queue_enqueue(&ctx->output_surface_queue, &ctx->output_surfaces[i]); + + if (res) + return res; + + ctx->output_surfaces[i].busy = 1; + } - return AVERROR_UNKNOWN; + if (nv_status != NV_ENC_SUCCESS && nv_status != NV_ENC_ERR_NEED_MORE_INPUT) { + av_log(avctx, AV_LOG_ERROR, "EncodePicture failed!\n"); + return AVERROR_EXTERNAL; } - if (out) { - ret = nvenc_enqueue_surface(ctx->pending, out); - if (ret < 0) - return ret; + if (nv_status != NV_ENC_ERR_NEED_MORE_INPUT) { + while (ctx->output_surface_queue.count) { + tmpoutsurf = out_surf_queue_dequeue(&ctx->output_surface_queue); + res = out_surf_queue_enqueue(&ctx->output_surface_ready_queue, tmpoutsurf); + + if (res) + return res; + } + + if (frame) { + res = out_surf_queue_enqueue(&ctx->output_surface_ready_queue, &ctx->output_surfaces[i]); + + if (res) + return res; + + ctx->output_surfaces[i].busy = 1; + } } - if (ret != NV_ENC_ERR_NEED_MORE_INPUT && - av_fifo_size(ctx->pending)) { - ret = nvenc_get_frame(avctx, pkt); - if (ret < 0) - return ret; + if (ctx->output_surface_ready_queue.count) { + tmpoutsurf = out_surf_queue_dequeue(&ctx->output_surface_ready_queue); + + res = process_output_surface(avctx, pkt, avctx->coded_frame, tmpoutsurf); + + if (res) + return res; + + tmpoutsurf->busy = 0; + av_assert0(tmpoutsurf->input_surface->lockCount); + tmpoutsurf->input_surface->lockCount--; + *got_packet = 1; } else { *got_packet = 0; @@ -1134,3 +1374,105 @@ int ff_nvenc_encode_frame(AVCodecContext *avctx, AVPacket *pkt, return 0; } + +static const enum AVPixelFormat pix_fmts_nvenc[] = { + AV_PIX_FMT_YUV420P, + AV_PIX_FMT_NV12, + AV_PIX_FMT_NONE +}; + +#define OFFSET(x) offsetof(NvencContext, x) +#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM +static const AVOption options[] = { + { "preset", "Set the encoding preset (one of hq, hp, bd, ll, llhq, llhp, default)", OFFSET(preset), AV_OPT_TYPE_STRING, { .str = "hq" }, 0, 0, VE }, + { "profile", "Set the encoding profile (high, main or baseline)", OFFSET(profile), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE }, + { "level", "Set the encoding level restriction (auto, 1.0, 1.0b, 1.1, 1.2, ..., 4.2, 5.0, 5.1)", OFFSET(level), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE }, + { "tier", "Set the encoding tier (main or high)", OFFSET(tier), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE }, + { "cbr", "Use cbr encoding mode", OFFSET(cbr), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE }, + { "2pass", "Use 2pass cbr encoding mode (low latency mode only)", OFFSET(twopass), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE }, + { "gpu", "Selects which NVENC capable GPU to use. First GPU is 0, second is 1, and so on.", OFFSET(gpu), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE }, + { NULL } +}; + +static const AVCodecDefault nvenc_defaults[] = { + { "b", "0" }, + { "qmin", "-1" }, + { "qmax", "-1" }, + { "qdiff", "-1" }, + { "qblur", "-1" }, + { "qcomp", "-1" }, + { NULL }, +}; + +#if CONFIG_NVENC_ENCODER +static const AVClass nvenc_class = { + .class_name = "nvenc", + .item_name = av_default_item_name, + .option = options, + .version = LIBAVUTIL_VERSION_INT, +}; + +AVCodec ff_nvenc_encoder = { + .name = "nvenc", + .long_name = NULL_IF_CONFIG_SMALL("Nvidia NVENC h264 encoder"), + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_H264, + .priv_data_size = sizeof(NvencContext), + .init = nvenc_encode_init, + .encode2 = nvenc_encode_frame, + .close = nvenc_encode_close, + .capabilities = CODEC_CAP_DELAY, + .priv_class = &nvenc_class, + .defaults = nvenc_defaults, + .pix_fmts = pix_fmts_nvenc, +}; +#endif + +/* Add an alias for nvenc_h264 */ +#if CONFIG_NVENC_H264_ENCODER +static const AVClass nvenc_h264_class = { + .class_name = "nvenc_h264", + .item_name = av_default_item_name, + .option = options, + .version = LIBAVUTIL_VERSION_INT, +}; + +AVCodec ff_nvenc_h264_encoder = { + .name = "nvenc_h264", + .long_name = NULL_IF_CONFIG_SMALL("Nvidia NVENC h264 encoder"), + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_H264, + .priv_data_size = sizeof(NvencContext), + .init = nvenc_encode_init, + .encode2 = nvenc_encode_frame, + .close = nvenc_encode_close, + .capabilities = CODEC_CAP_DELAY, + .priv_class = &nvenc_h264_class, + .defaults = nvenc_defaults, + .pix_fmts = pix_fmts_nvenc, +}; +#endif + +#if CONFIG_NVENC_HEVC_ENCODER +static const AVClass nvenc_hevc_class = { + .class_name = "nvenc_hevc", + .item_name = av_default_item_name, + .option = options, + .version = LIBAVUTIL_VERSION_INT, +}; + +AVCodec ff_nvenc_hevc_encoder = { + .name = "nvenc_hevc", + .long_name = NULL_IF_CONFIG_SMALL("Nvidia NVENC hevc encoder"), + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_H265, + .priv_data_size = sizeof(NvencContext), + .init = nvenc_encode_init, + .encode2 = nvenc_encode_frame, + .close = nvenc_encode_close, + .capabilities = CODEC_CAP_DELAY, + .priv_class = &nvenc_hevc_class, + .defaults = nvenc_defaults, + .pix_fmts = pix_fmts_nvenc, +}; +#endif |