avcodec: Rename nvenc.c to nvenc_a.c, to avoid conflict with the other implementation

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 0 insertions, 1452 deletions

diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c
deleted file mode 100644
index 0a418a7a34..0000000000
--- a/libavcodec/nvenc.c
+++ /dev/null
@@ -1,1452 +0,0 @@
-/*
- * H.264 hardware encoding using nvidia nvenc
- * Copyright (c) 2014 Timo Rothenpieler <timo@rothenpieler.org>
- *
- * 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
- */
-
-#if defined(_WIN32)
-#include <windows.h>
-#else
-#include <dlfcn.h>
-#endif
-
-#include <nvEncodeAPI.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 "thread.h"
-
-#if defined(_WIN32)
-#define CUDAAPI __stdcall
-#else
-#define CUDAAPI
-#endif
-
-#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
-
-typedef enum cudaError_enum {
-    CUDA_SUCCESS = 0
-} CUresult;
-typedef int CUdevice;
-typedef void* CUcontext;
-
-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 NvencInputSurface
-{
-    NV_ENC_INPUT_PTR input_surface;
-    int width;
-    int height;
-
-    int lockCount;
-
-    NV_ENC_BUFFER_FORMAT format;
-} NvencInputSurface;
-
-typedef struct NvencOutputSurface
-{
-    NV_ENC_OUTPUT_PTR output_surface;
-    int size;
-
-    NvencInputSurface* input_surface;
-
-    int busy;
-} NvencOutputSurface;
-
-typedef struct NvencData
-{
-    union {
-        int64_t timestamp;
-        NvencOutputSurface *surface;
-    };
-} NvencData;
-
-typedef struct NvencDataList
-{
-    NvencData* data;
-
-    uint32_t pos;
-    uint32_t count;
-    uint32_t size;
-} NvencDataList;
-
-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;
-
-typedef struct NvencValuePair
-{
-    const char *str;
-    uint32_t num;
-} NvencValuePair;
-
-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_h265_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;
-        }
-    }
-
-    return AVERROR(EINVAL);
-}
-
-static NvencData* data_queue_dequeue(NvencDataList* queue)
-{
-    uint32_t mask;
-    uint32_t read_pos;
-
-    av_assert0(queue);
-    av_assert0(queue->size);
-    av_assert0(queue->data);
-
-    if (!queue->count)
-        return NULL;
-
-    /* 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 data_queue_enqueue(NvencDataList* queue, NvencData *data)
-{
-    NvencDataList new_queue;
-    NvencData* tmp_data;
-    uint32_t mask;
-
-    if (!queue->size) {
-        /* size always has to be a multiple of two */
-        queue->size = 4;
-        queue->pos = 0;
-        queue->count = 0;
-
-        queue->data = av_malloc(queue->size * sizeof(*(queue->data)));
-
-        if (!queue->data) {
-            queue->size = 0;
-            return AVERROR(ENOMEM);
-        }
-    }
-
-    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)));
-
-        if (!new_queue.data)
-            return AVERROR(ENOMEM);
-
-        while (tmp_data = data_queue_dequeue(queue))
-            data_queue_enqueue(&new_queue, tmp_data);
-
-        av_free(queue->data);
-        *queue = new_queue;
-    }
-
-    mask = queue->size - 1;
-
-    queue->data[queue->pos] = *data;
-    queue->pos = (queue->pos + 1) & mask;
-    queue->count++;
-
-    return 0;
-}
-
-static int out_surf_queue_enqueue(NvencDataList* queue, NvencOutputSurface* surface)
-{
-    NvencData data;
-    data.surface = surface;
-
-    return data_queue_enqueue(queue, &data);
-}
-
-static NvencOutputSurface* out_surf_queue_dequeue(NvencDataList* queue)
-{
-    NvencData* res = data_queue_dequeue(queue);
-
-    if (!res)
-        return NULL;
-
-    return res->surface;
-}
-
-static int timestamp_queue_enqueue(NvencDataList* queue, int64_t timestamp)
-{
-    NvencData data;
-    data.timestamp = timestamp;
-
-    return data_queue_enqueue(queue, &data);
-}
-
-static int64_t timestamp_queue_dequeue(NvencDataList* queue)
-{
-    NvencData* res = data_queue_dequeue(queue);
-
-    if (!res)
-        return AV_NOPTS_VALUE;
-
-    return res->timestamp;
-}
-
-#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;
-    NvencDynLoadFunctions *dl_fn = &ctx->nvenc_dload_funcs;
-
-    if (dl_fn->cuda_lib)
-        return 1;
-
-#if defined(_WIN32)
-    dl_fn->cuda_lib = LoadLibrary(TEXT("nvcuda.dll"));
-#else
-    dl_fn->cuda_lib = dlopen("libcuda.so", RTLD_LAZY);
-#endif
-
-    if (!dl_fn->cuda_lib) {
-        av_log(avctx, AV_LOG_FATAL, "Failed loading CUDA library\n");
-        goto error;
-    }
-
-    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");
-
-    return 1;
-
-error:
-
-    if (dl_fn->cuda_lib)
-        DL_CLOSE_FUNC(dl_fn->cuda_lib);
-
-    dl_fn->cuda_lib = NULL;
-
-    return 0;
-}
-
-static av_cold int check_cuda_errors(AVCodecContext *avctx, CUresult err, const char *func)
-{
-    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 av_cold int nvenc_check_cuda(AVCodecContext *avctx)
-{
-    int device_count = 0;
-    CUdevice cu_device = 0;
-    char gpu_name[128];
-    int smminor = 0, smmajor = 0;
-    int i, smver, target_smver;
-
-    NvencContext *ctx = avctx->priv_data;
-    NvencDynLoadFunctions *dl_fn = &ctx->nvenc_dload_funcs;
-
-    switch (avctx->codec->id) {
-    case AV_CODEC_ID_H264:
-        target_smver = 0x30;
-        break;
-    case AV_CODEC_ID_H265:
-        target_smver = 0x52;
-        break;
-    default:
-        av_log(avctx, AV_LOG_FATAL, "nvenc: Unknown codec name\n");
-        goto error;
-    }
-
-    if (!nvenc_dyload_cuda(avctx))
-        return 0;
-
-    if (dl_fn->nvenc_device_count > 0)
-        return 1;
-
-    check_cuda_errors(dl_fn->cu_init(0));
-
-    check_cuda_errors(dl_fn->cu_device_get_count(&device_count));
-
-    if (!device_count) {
-        av_log(avctx, AV_LOG_FATAL, "No CUDA capable devices found\n");
-        goto error;
-    }
-
-    av_log(avctx, AV_LOG_VERBOSE, "%d CUDA capable devices found\n", device_count);
-
-    dl_fn->nvenc_device_count = 0;
-
-    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));
-
-        smver = (smmajor << 4) | smminor;
-
-        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");
-
-        if (smver >= target_smver)
-            dl_fn->nvenc_devices[dl_fn->nvenc_device_count++] = cu_device;
-    }
-
-    if (!dl_fn->nvenc_device_count) {
-        av_log(avctx, AV_LOG_FATAL, "No NVENC capable devices found\n");
-        goto error;
-    }
-
-    return 1;
-
-error:
-
-    dl_fn->nvenc_device_count = 0;
-
-    return 0;
-}
-
-static av_cold int nvenc_dyload_nvenc(AVCodecContext *avctx)
-{
-    PNVENCODEAPICREATEINSTANCE nvEncodeAPICreateInstance = 0;
-    NVENCSTATUS nvstatus;
-
-    NvencContext *ctx = avctx->priv_data;
-    NvencDynLoadFunctions *dl_fn = &ctx->nvenc_dload_funcs;
-
-    if (!nvenc_check_cuda(avctx))
-        return 0;
-
-    if (dl_fn->nvenc_lib)
-        return 1;
-
-#if defined(_WIN32)
-    if (sizeof(void*) == 8) {
-        dl_fn->nvenc_lib = LoadLibrary(TEXT("nvEncodeAPI64.dll"));
-    } else {
-        dl_fn->nvenc_lib = LoadLibrary(TEXT("nvEncodeAPI.dll"));
-    }
-#else
-    dl_fn->nvenc_lib = dlopen("libnvidia-encode.so.1", RTLD_LAZY);
-#endif
-
-    if (!dl_fn->nvenc_lib) {
-        av_log(avctx, AV_LOG_FATAL, "Failed loading the nvenc library\n");
-        goto error;
-    }
-
-    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;
-    }
-
-    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;
-    }
-
-    av_log(avctx, AV_LOG_VERBOSE, "Nvenc initialized successfully\n");
-
-    return 1;
-
-error:
-    if (dl_fn->nvenc_lib)
-        DL_CLOSE_FUNC(dl_fn->nvenc_lib);
-
-    dl_fn->nvenc_lib = NULL;
-
-    return 0;
-}
-
-static av_cold void nvenc_unload_nvenc(AVCodecContext *avctx)
-{
-    NvencContext *ctx = avctx->priv_data;
-    NvencDynLoadFunctions *dl_fn = &ctx->nvenc_dload_funcs;
-
-    DL_CLOSE_FUNC(dl_fn->nvenc_lib);
-    dl_fn->nvenc_lib = NULL;
-
-    dl_fn->nvenc_device_count = 0;
-
-    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;
-    }
-
-    ctx->last_dts = AV_NOPTS_VALUE;
-
-    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 (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;
-    }
-
-    ctx->cu_context = NULL;
-    cu_res = dl_fn->cu_ctx_create(&ctx->cu_context, 0, dl_fn->nvenc_devices[ctx->gpu]);
-
-    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;
-    }
-
-    cu_res = dl_fn->cu_ctx_pop_current(&cu_context_curr);
-
-    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;
-    }
-
-    encode_session_params.device = ctx->cu_context;
-    encode_session_params.deviceType = NV_ENC_DEVICE_TYPE_CUDA;
-
-    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;
-    }
-
-    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->codec->id) {
-    case AV_CODEC_ID_H264:
-        codec = NV_ENC_CODEC_H264_GUID;
-        break;
-    case AV_CODEC_ID_H265:
-        codec = NV_ENC_CODEC_HEVC_GUID;
-        break;
-    default:
-        av_log(avctx, AV_LOG_ERROR, "nvenc: Unknown codec name\n");
-        res = AVERROR(EINVAL);
-        goto error;
-    }
-
-    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->init_encode_params.encodeGUID = codec;
-    ctx->init_encode_params.encodeHeight = avctx->height;
-    ctx->init_encode_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.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;
-    }
-
-    // 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->init_encode_params.frameRateNum = avctx->time_base.den;
-    ctx->init_encode_params.frameRateDen = avctx->time_base.num * avctx->ticks_per_frame;
-
-    num_mbs = ((avctx->width + 15) >> 4) * ((avctx->height + 15) >> 4);
-    ctx->max_surface_count = (num_mbs >= 8160) ? 32 : 48;
-
-    ctx->init_encode_params.enableEncodeAsync = 0;
-    ctx->init_encode_params.enablePTD = 1;
-
-    ctx->init_encode_params.presetGUID = encoder_preset;
-
-    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;
-
-    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. */
-        }
-    }
-
-    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;
-        }
-
-        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. */
-        }
-    }
-
-    /* when there're b frames, set dts offset */
-    if (ctx->encode_config.frameIntervalP >= 2)
-        ctx->last_dts = -2;
-
-    if (avctx->bit_rate > 0)
-        ctx->encode_config.rcParams.averageBitRate = avctx->bit_rate;
-
-    if (avctx->rc_max_rate > 0)
-        ctx->encode_config.rcParams.maxBitRate = avctx->rc_max_rate;
-
-    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;
-
-            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;
-            }
-
-            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;
-
-        avctx->qmin = -1;
-        avctx->qmax = -1;
-    } else if (avctx->qmin >= 0 && avctx->qmax >= 0) {
-        ctx->encode_config.rcParams.rateControlMode = NV_ENC_PARAMS_RC_VBR;
-
-        ctx->encode_config.rcParams.enableMinQP = 1;
-        ctx->encode_config.rcParams.enableMaxQP = 1;
-
-        ctx->encode_config.rcParams.minQP.qpInterB = avctx->qmin;
-        ctx->encode_config.rcParams.minQP.qpInterP = avctx->qmin;
-        ctx->encode_config.rcParams.minQP.qpIntra = avctx->qmin;
-
-        ctx->encode_config.rcParams.maxQP.qpInterB = avctx->qmax;
-        ctx->encode_config.rcParams.maxQP.qpInterP = avctx->qmax;
-        ctx->encode_config.rcParams.maxQP.qpIntra = avctx->qmax;
-    }
-
-    if (avctx->rc_buffer_size > 0)
-        ctx->encode_config.rcParams.vbvBufferSize = avctx->rc_buffer_size;
-
-    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;
-    }
-
-    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->level) {
-            res = input_string_to_uint32(avctx, nvenc_h264_level_pairs, ctx->level, &ctx->encode_config.encodeCodecConfig.h264Config.level);
-
-            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;
-        }
-
-        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;
-
-        /* 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 (ctx->level) {
-            res = input_string_to_uint32(avctx, nvenc_h265_level_pairs, ctx->level, &ctx->encode_config.encodeCodecConfig.hevcConfig.level);
-
-            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 (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;
-            }
-        }
-
-        break;
-    /* Earlier switch/case will return if unknown codec is passed. */
-    }
-
-    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;
-    }
-
-    ctx->input_surfaces = av_malloc(ctx->max_surface_count * sizeof(*ctx->input_surfaces));
-
-    if (!ctx->input_surfaces) {
-        res = AVERROR(ENOMEM);
-        goto error;
-    }
-
-    ctx->output_surfaces = av_malloc(ctx->max_surface_count * sizeof(*ctx->output_surfaces));
-
-    if (!ctx->output_surfaces) {
-        res = AVERROR(ENOMEM);
-        goto error;
-    }
-
-    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;
-
-        allocSurf.width = (avctx->width + 31) & ~31;
-        allocSurf.height = (avctx->height + 31) & ~31;
-
-        allocSurf.memoryHeap = NV_ENC_MEMORY_HEAP_SYSMEM_CACHED;
-
-        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;
-        }
-
-        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;
-        }
-
-        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;
-
-        /* 1MB is large enough to hold most output frames. NVENC increases this automaticaly if it's not enough. */
-        allocOut.size = 1024 * 1024;
-
-        allocOut.memoryHeap = NV_ENC_MEMORY_HEAP_SYSMEM_CACHED;
-
-        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;
-        }
-
-        ctx->output_surfaces[surfaceCount].output_surface = allocOut.bitstreamBuffer;
-        ctx->output_surfaces[surfaceCount].size = allocOut.size;
-        ctx->output_surfaces[surfaceCount].busy = 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;
-        }
-
-        avctx->extradata_size = outSize;
-        avctx->extradata = av_mallocz(outSize + FF_INPUT_BUFFER_PADDING_SIZE);
-
-        if (!avctx->extradata) {
-            res = AVERROR(ENOMEM);
-            goto error;
-        }
-
-        memcpy(avctx->extradata, tmpHeader, outSize);
-    }
-
-    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;
-
-    return 0;
-
-error:
-
-    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);
-    }
-
-    if (ctx->nvencoder)
-        p_nvenc->nvEncDestroyEncoder(ctx->nvencoder);
-
-    if (ctx->cu_context)
-        dl_fn->cu_ctx_destroy(ctx->cu_context);
-
-    av_frame_free(&avctx->coded_frame);
-
-    nvenc_unload_nvenc(avctx);
-
-    ctx->nvencoder = NULL;
-    ctx->cu_context = NULL;
-
-    return res;
-}
-
-static av_cold int nvenc_encode_close(AVCodecContext *avctx)
-{
-    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;
-
-    av_freep(&ctx->timestamp_list.data);
-    av_freep(&ctx->output_surface_ready_queue.data);
-    av_freep(&ctx->output_surface_queue.data);
-
-    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;
-
-    p_nvenc->nvEncDestroyEncoder(ctx->nvencoder);
-    ctx->nvencoder = NULL;
-
-    dl_fn->cu_ctx_destroy(ctx->cu_context);
-    ctx->cu_context = NULL;
-
-    nvenc_unload_nvenc(avctx);
-
-    av_frame_free(&avctx->coded_frame);
-
-    return 0;
-}
-
-static int process_output_surface(AVCodecContext *avctx, AVPacket *pkt, AVFrame *coded_frame, NvencOutputSurface *tmpoutsurf)
-{
-    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;
-
-    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));
-
-    if (!slice_offsets)
-        return AVERROR(ENOMEM);
-
-    lock_params.version = NV_ENC_LOCK_BITSTREAM_VER;
-
-    lock_params.doNotWait = 0;
-    lock_params.outputBitstream = tmpoutsurf->output_surface;
-    lock_params.sliceOffsets = slice_offsets;
-
-    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;
-    }
-
-    if (res = ff_alloc_packet2(avctx, pkt, lock_params.bitstreamSizeInBytes)) {
-        p_nvenc->nvEncUnlockBitstream(ctx->nvencoder, tmpoutsurf->output_surface);
-        goto error;
-    }
-
-    memcpy(pkt->data, lock_params.bitstreamBufferPtr, lock_params.bitstreamSizeInBytes);
-
-    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 (lock_params.pictureType) {
-    case NV_ENC_PIC_TYPE_IDR:
-        pkt->flags |= AV_PKT_FLAG_KEY;
-    case NV_ENC_PIC_TYPE_I:
-        avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
-        break;
-    case NV_ENC_PIC_TYPE_P:
-        avctx->coded_frame->pict_type = AV_PICTURE_TYPE_P;
-        break;
-    case NV_ENC_PIC_TYPE_B:
-        avctx->coded_frame->pict_type = AV_PICTURE_TYPE_B;
-        break;
-    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;
-}
-
-static int nvenc_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
-    const AVFrame *frame, int *got_packet)
-{
-    NVENCSTATUS nv_status;
-    NvencOutputSurface *tmpoutsurf;
-    int res, i = 0;
-
-    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) {
-        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) {
-                pic_params.pictureStruct = NV_ENC_PIC_STRUCT_FIELD_TOP_BOTTOM;
-            } else {
-                pic_params.pictureStruct = NV_ENC_PIC_STRUCT_FIELD_BOTTOM_TOP;
-            }
-        } else {
-            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);
-        }
-
-        res = timestamp_queue_enqueue(&ctx->timestamp_list, frame->pts);
-
-        if (res)
-            return res;
-    } else {
-        pic_params.encodePicFlags = NV_ENC_PIC_FLAG_EOS;
-    }
-
-    nv_status = p_nvenc->nvEncEncodePicture(ctx->nvencoder, &pic_params);
-
-    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;
-    }
-
-    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 (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 (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;
-    }
-
-    return 0;
-}
-
-static const enum AVPixelFormat pix_fmts_nvenc[] = {
-    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
-
-#if CONFIG_NVENC_H265_ENCODER
-static const AVClass nvenc_h265_class = {
-    .class_name = "nvenc_h265",
-    .item_name = av_default_item_name,
-    .option = options,
-    .version = LIBAVUTIL_VERSION_INT,
-};
-
-AVCodec ff_nvenc_h265_encoder = {
-    .name = "nvenc_h265",
-    .long_name = NULL_IF_CONFIG_SMALL("Nvidia NVENC h265 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_h265_class,
-    .defaults = nvenc_defaults,
-    .pix_fmts = pix_fmts_nvenc,
-};
-#endif