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avcodec/nvenc: CUDA frames support 

Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
tags/n3.1
Andrey Turkin Timo Rothenpieler 9 years ago
parent
cfb49fc6f7
commit
a8cf25dd92
1 changed files with 251 additions and 57 deletions
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  1. +251
    -57
      libavcodec/nvenc.c

+ 251
- 57
libavcodec/nvenc.c View File

@@ -33,16 +33,31 @@
#include "libavutil/avassert.h"
#include "libavutil/opt.h"
#include "libavutil/mem.h"
#include "libavutil/hwcontext.h"
#include "avcodec.h"
#include "internal.h"
#include "thread.h"


#if CONFIG_CUDA
#include <cuda.h>
#include "libavutil/hwcontext_cuda.h"
#else

#if defined(_WIN32)
#define CUDAAPI __stdcall
#else
#define CUDAAPI
#endif

typedef enum cudaError_enum {
CUDA_SUCCESS = 0
} CUresult;
typedef int CUdevice;
typedef void* CUcontext;
typedef void* CUdeviceptr;
#endif

#if defined(_WIN32)
#define LOAD_FUNC(l, s) GetProcAddress(l, s)
#define DL_CLOSE_FUNC(l) FreeLibrary(l)
@@ -51,12 +66,6 @@
#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);
@@ -68,9 +77,13 @@ typedef CUresult(CUDAAPI *PCUCTXDESTROY)(CUcontext ctx);

typedef NVENCSTATUS (NVENCAPI* PNVENCODEAPICREATEINSTANCE)(NV_ENCODE_API_FUNCTION_LIST *functionList);

#define MAX_REGISTERED_FRAMES 64
typedef struct NvencSurface
{
NV_ENC_INPUT_PTR input_surface;
AVFrame *in_ref;
NV_ENC_MAP_INPUT_RESOURCE in_map;
int reg_idx;
int width;
int height;

@@ -105,11 +118,16 @@ typedef struct NvencDynLoadFunctions
int nvenc_device_count;
CUdevice nvenc_devices[16];

#if !CONFIG_CUDA
#if defined(_WIN32)
HMODULE cuda_lib;
HMODULE nvenc_lib;
#else
void* cuda_lib;
#endif
#endif
#if defined(_WIN32)
HMODULE nvenc_lib;
#else
void* nvenc_lib;
#endif
} NvencDynLoadFunctions;
@@ -129,6 +147,7 @@ typedef struct NvencContext
NV_ENC_INITIALIZE_PARAMS init_encode_params;
NV_ENC_CONFIG encode_config;
CUcontext cu_context;
CUcontext cu_context_internal;

int max_surface_count;
NvencSurface *surfaces;
@@ -138,6 +157,17 @@ typedef struct NvencContext
AVFifoBuffer *timestamp_list;
int64_t last_dts;

struct {
CUdeviceptr ptr;
NV_ENC_REGISTERED_PTR regptr;
int mapped;
} registered_frames[MAX_REGISTERED_FRAMES];
int nb_registered_frames;

/* the actual data pixel format, different from
* AVCodecContext.pix_fmt when using hwaccel frames on input */
enum AVPixelFormat data_pix_fmt;

void *nvencoder;

char *preset;
@@ -299,6 +329,18 @@ static av_cold int nvenc_dyload_cuda(AVCodecContext *avctx)
NvencContext *ctx = avctx->priv_data;
NvencDynLoadFunctions *dl_fn = &ctx->nvenc_dload_funcs;

#if CONFIG_CUDA
dl_fn->cu_init = cuInit;
dl_fn->cu_device_get_count = cuDeviceGetCount;
dl_fn->cu_device_get = cuDeviceGet;
dl_fn->cu_device_get_name = cuDeviceGetName;
dl_fn->cu_device_compute_capability = cuDeviceComputeCapability;
dl_fn->cu_ctx_create = cuCtxCreate_v2;
dl_fn->cu_ctx_pop_current = cuCtxPopCurrent_v2;
dl_fn->cu_ctx_destroy = cuCtxDestroy_v2;

return 1;
#else
if (dl_fn->cuda_lib)
return 1;

@@ -332,6 +374,7 @@ error:
dl_fn->cuda_lib = NULL;

return 0;
#endif
}

static av_cold int check_cuda_errors(AVCodecContext *avctx, CUresult err, const char *func)
@@ -357,7 +400,7 @@ static av_cold int nvenc_check_cuda(AVCodecContext *avctx)

switch (avctx->codec->id) {
case AV_CODEC_ID_H264:
target_smver = avctx->pix_fmt == AV_PIX_FMT_YUV444P ? 0x52 : 0x30;
target_smver = ctx->data_pix_fmt == AV_PIX_FMT_YUV444P ? 0x52 : 0x30;
break;
case AV_CODEC_ID_H265:
target_smver = 0x52;
@@ -481,8 +524,10 @@ static av_cold void nvenc_unload_nvenc(AVCodecContext *avctx)

dl_fn->nvenc_device_count = 0;

#if !CONFIG_CUDA
DL_CLOSE_FUNC(dl_fn->cuda_lib);
dl_fn->cuda_lib = NULL;
#endif

dl_fn->cu_init = NULL;
dl_fn->cu_device_get_count = NULL;
@@ -504,13 +549,33 @@ static av_cold int nvenc_setup_device(AVCodecContext *avctx)
CUresult cu_res;
CUcontext cu_context_curr;

ctx->data_pix_fmt = avctx->pix_fmt;

#if CONFIG_CUDA
if (avctx->pix_fmt == AV_PIX_FMT_CUDA) {
AVHWFramesContext *frames_ctx;
AVCUDADeviceContext *device_hwctx;

if (!avctx->hw_frames_ctx) {
av_log(avctx, AV_LOG_ERROR, "hw_frames_ctx must be set when using GPU frames as input\n");
return AVERROR(EINVAL);
}

frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
device_hwctx = frames_ctx->device_ctx->hwctx;
ctx->cu_context = device_hwctx->cuda_ctx;
ctx->data_pix_fmt = frames_ctx->sw_format;
return 0;
}
#endif

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);
return AVERROR(EINVAL);
}

ctx->cu_context = NULL;
cu_res = dl_fn->cu_ctx_create(&ctx->cu_context, 4, dl_fn->nvenc_devices[ctx->gpu]); // CU_CTX_SCHED_BLOCKING_SYNC=4, avoid CPU spins
cu_res = dl_fn->cu_ctx_create(&ctx->cu_context_internal, 4, dl_fn->nvenc_devices[ctx->gpu]); // CU_CTX_SCHED_BLOCKING_SYNC=4, avoid CPU spins

if (cu_res != CUDA_SUCCESS) {
av_log(avctx, AV_LOG_FATAL, "Failed creating CUDA context for NVENC: 0x%x\n", (int)cu_res);
@@ -524,6 +589,8 @@ static av_cold int nvenc_setup_device(AVCodecContext *avctx)
return AVERROR_EXTERNAL;
}

ctx->cu_context = ctx->cu_context_internal;

return 0;
}

@@ -688,7 +755,7 @@ static av_cold int nvenc_setup_h264_config(AVCodecContext *avctx, int lossless)
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
|| avctx->pix_fmt == AV_PIX_FMT_YUVJ420P || avctx->pix_fmt == AV_PIX_FMT_YUVJ422P || avctx->pix_fmt == AV_PIX_FMT_YUVJ444P);
|| ctx->data_pix_fmt == AV_PIX_FMT_YUVJ420P || ctx->data_pix_fmt == AV_PIX_FMT_YUVJ422P || ctx->data_pix_fmt == AV_PIX_FMT_YUVJ444P);

ctx->encode_config.encodeCodecConfig.h264Config.h264VUIParameters.colourDescriptionPresentFlag =
(avctx->colorspace != 2 || avctx->color_primaries != 2 || avctx->color_trc != 2);
@@ -746,7 +813,7 @@ static av_cold int nvenc_setup_h264_config(AVCodecContext *avctx, int lossless)
}

// force setting profile as high444p if input is AV_PIX_FMT_YUV444P
if (avctx->pix_fmt == AV_PIX_FMT_YUV444P) {
if (ctx->data_pix_fmt == AV_PIX_FMT_YUV444P) {
ctx->encode_config.profileGUID = NV_ENC_H264_PROFILE_HIGH_444_GUID;
avctx->profile = FF_PROFILE_H264_HIGH_444_PREDICTIVE;
}
@@ -776,7 +843,7 @@ static av_cold int nvenc_setup_hevc_config(AVCodecContext *avctx)
ctx->encode_config.encodeCodecConfig.hevcConfig.hevcVUIParameters.colourPrimaries = avctx->color_primaries;
ctx->encode_config.encodeCodecConfig.hevcConfig.hevcVUIParameters.transferCharacteristics = avctx->color_trc;
ctx->encode_config.encodeCodecConfig.hevcConfig.hevcVUIParameters.videoFullRangeFlag = (avctx->color_range == AVCOL_RANGE_JPEG
|| avctx->pix_fmt == AV_PIX_FMT_YUVJ420P || avctx->pix_fmt == AV_PIX_FMT_YUVJ422P || avctx->pix_fmt == AV_PIX_FMT_YUVJ444P);
|| ctx->data_pix_fmt == AV_PIX_FMT_YUVJ420P || ctx->data_pix_fmt == AV_PIX_FMT_YUVJ422P || ctx->data_pix_fmt == AV_PIX_FMT_YUVJ444P);

ctx->encode_config.encodeCodecConfig.hevcConfig.hevcVUIParameters.colourDescriptionPresentFlag =
(avctx->colorspace != 2 || avctx->color_primaries != 2 || avctx->color_trc != 2);
@@ -1054,28 +1121,20 @@ static av_cold int nvenc_alloc_surface(AVCodecContext *avctx, int idx)
NV_ENCODE_API_FUNCTION_LIST *p_nvenc = &dl_fn->nvenc_funcs;

NVENCSTATUS nv_status;
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) {
switch (ctx->data_pix_fmt) {
case AV_PIX_FMT_YUV420P:
allocSurf.bufferFmt = NV_ENC_BUFFER_FORMAT_YV12_PL;
ctx->surfaces[idx].format = NV_ENC_BUFFER_FORMAT_YV12_PL;
break;

case AV_PIX_FMT_NV12:
allocSurf.bufferFmt = NV_ENC_BUFFER_FORMAT_NV12_PL;
ctx->surfaces[idx].format = NV_ENC_BUFFER_FORMAT_NV12_PL;
break;

case AV_PIX_FMT_YUV444P:
allocSurf.bufferFmt = NV_ENC_BUFFER_FORMAT_YUV444_PL;
ctx->surfaces[idx].format = NV_ENC_BUFFER_FORMAT_YUV444_PL;
break;

default:
@@ -1083,16 +1142,29 @@ static av_cold int nvenc_alloc_surface(AVCodecContext *avctx, int idx)
return AVERROR(EINVAL);
}

nv_status = p_nvenc->nvEncCreateInputBuffer(ctx->nvencoder, &allocSurf);
if (nv_status != NV_ENC_SUCCESS) {
return nvenc_print_error(avctx, nv_status, "CreateInputBuffer failed");
if (avctx->pix_fmt == AV_PIX_FMT_CUDA) {
ctx->surfaces[idx].in_ref = av_frame_alloc();
if (!ctx->surfaces[idx].in_ref)
return AVERROR(ENOMEM);
} else {
NV_ENC_CREATE_INPUT_BUFFER allocSurf = { 0 };
allocSurf.version = NV_ENC_CREATE_INPUT_BUFFER_VER;
allocSurf.width = (avctx->width + 31) & ~31;
allocSurf.height = (avctx->height + 31) & ~31;
allocSurf.memoryHeap = NV_ENC_MEMORY_HEAP_SYSMEM_CACHED;
allocSurf.bufferFmt = ctx->surfaces[idx].format;

nv_status = p_nvenc->nvEncCreateInputBuffer(ctx->nvencoder, &allocSurf);
if (nv_status != NV_ENC_SUCCESS) {
return nvenc_print_error(avctx, nv_status, "CreateInputBuffer failed");
}

ctx->surfaces[idx].input_surface = allocSurf.inputBuffer;
ctx->surfaces[idx].width = allocSurf.width;
ctx->surfaces[idx].height = allocSurf.height;
}

ctx->surfaces[idx].lockCount = 0;
ctx->surfaces[idx].input_surface = allocSurf.inputBuffer;
ctx->surfaces[idx].format = allocSurf.bufferFmt;
ctx->surfaces[idx].width = allocSurf.width;
ctx->surfaces[idx].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;
@@ -1102,7 +1174,9 @@ static av_cold int nvenc_alloc_surface(AVCodecContext *avctx, int idx)
nv_status = p_nvenc->nvEncCreateBitstreamBuffer(ctx->nvencoder, &allocOut);
if (nv_status != NV_ENC_SUCCESS) {
int err = nvenc_print_error(avctx, nv_status, "CreateBitstreamBuffer failed");
p_nvenc->nvEncDestroyInputBuffer(ctx->nvencoder, ctx->surfaces[idx].input_surface);
if (avctx->pix_fmt != AV_PIX_FMT_CUDA)
p_nvenc->nvEncDestroyInputBuffer(ctx->nvencoder, ctx->surfaces[idx].input_surface);
av_frame_free(&ctx->surfaces[idx].in_ref);
return err;
}

@@ -1218,22 +1292,23 @@ error:
av_fifo_freep(&ctx->output_surface_queue);

for (i = 0; i < surfaceCount; ++i) {
p_nvenc->nvEncDestroyInputBuffer(ctx->nvencoder, ctx->surfaces[i].input_surface);
if (avctx->pix_fmt != AV_PIX_FMT_CUDA)
p_nvenc->nvEncDestroyInputBuffer(ctx->nvencoder, ctx->surfaces[i].input_surface);
av_frame_free(&ctx->surfaces[i].in_ref);
p_nvenc->nvEncDestroyBitstreamBuffer(ctx->nvencoder, ctx->surfaces[i].output_surface);
}
av_freep(&ctx->surfaces);

if (ctx->nvencoder)
p_nvenc->nvEncDestroyEncoder(ctx->nvencoder);
ctx->nvencoder = NULL;

if (ctx->cu_context)
dl_fn->cu_ctx_destroy(ctx->cu_context);
if (ctx->cu_context_internal)
dl_fn->cu_ctx_destroy(ctx->cu_context_internal);
ctx->cu_context = ctx->cu_context_internal = NULL;

nvenc_unload_nvenc(avctx);

ctx->nvencoder = NULL;
ctx->cu_context = NULL;

return res;
}

@@ -1248,8 +1323,23 @@ static av_cold int nvenc_encode_close(AVCodecContext *avctx)
av_fifo_freep(&ctx->output_surface_ready_queue);
av_fifo_freep(&ctx->output_surface_queue);

if (avctx->pix_fmt == AV_PIX_FMT_CUDA) {
for (i = 0; i < ctx->max_surface_count; ++i) {
if (ctx->surfaces[i].input_surface) {
p_nvenc->nvEncUnmapInputResource(ctx->nvencoder, ctx->surfaces[i].in_map.mappedResource);
}
}
for (i = 0; i < ctx->nb_registered_frames; i++) {
if (ctx->registered_frames[i].regptr)
p_nvenc->nvEncUnregisterResource(ctx->nvencoder, ctx->registered_frames[i].regptr);
}
ctx->nb_registered_frames = 0;
}

for (i = 0; i < ctx->max_surface_count; ++i) {
p_nvenc->nvEncDestroyInputBuffer(ctx->nvencoder, ctx->surfaces[i].input_surface);
if (avctx->pix_fmt != AV_PIX_FMT_CUDA)
p_nvenc->nvEncDestroyInputBuffer(ctx->nvencoder, ctx->surfaces[i].input_surface);
av_frame_free(&ctx->surfaces[i].in_ref);
p_nvenc->nvEncDestroyBitstreamBuffer(ctx->nvencoder, ctx->surfaces[i].output_surface);
}
av_freep(&ctx->surfaces);
@@ -1258,8 +1348,9 @@ static av_cold int nvenc_encode_close(AVCodecContext *avctx)
p_nvenc->nvEncDestroyEncoder(ctx->nvencoder);
ctx->nvencoder = NULL;

dl_fn->cu_ctx_destroy(ctx->cu_context);
ctx->cu_context = NULL;
if (ctx->cu_context_internal)
dl_fn->cu_ctx_destroy(ctx->cu_context_internal);
ctx->cu_context = ctx->cu_context_internal = NULL;

nvenc_unload_nvenc(avctx);

@@ -1286,7 +1377,7 @@ static int nvenc_copy_frame(AVCodecContext *avctx, NvencSurface *inSurf,
uint8_t *buf = lockBufferParams->bufferDataPtr;
int off = inSurf->height * lockBufferParams->pitch;

if (avctx->pix_fmt == AV_PIX_FMT_YUV420P) {
if (frame->format == AV_PIX_FMT_YUV420P) {
av_image_copy_plane(buf, lockBufferParams->pitch,
frame->data[0], frame->linesize[0],
avctx->width, avctx->height);
@@ -1302,7 +1393,7 @@ static int nvenc_copy_frame(AVCodecContext *avctx, NvencSurface *inSurf,
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) {
} else if (frame->format == AV_PIX_FMT_NV12) {
av_image_copy_plane(buf, lockBufferParams->pitch,
frame->data[0], frame->linesize[0],
avctx->width, avctx->height);
@@ -1312,7 +1403,7 @@ static int nvenc_copy_frame(AVCodecContext *avctx, NvencSurface *inSurf,
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) {
} else if (frame->format == AV_PIX_FMT_YUV444P) {
av_image_copy_plane(buf, lockBufferParams->pitch,
frame->data[0], frame->linesize[0],
avctx->width, avctx->height);
@@ -1336,6 +1427,71 @@ static int nvenc_copy_frame(AVCodecContext *avctx, NvencSurface *inSurf,
return 0;
}

static int nvenc_find_free_reg_resource(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;

if (ctx->nb_registered_frames == FF_ARRAY_ELEMS(ctx->registered_frames)) {
for (i = 0; i < ctx->nb_registered_frames; i++) {
if (!ctx->registered_frames[i].mapped) {
if (ctx->registered_frames[i].regptr) {
p_nvenc->nvEncUnregisterResource(ctx->nvencoder,
ctx->registered_frames[i].regptr);
ctx->registered_frames[i].regptr = NULL;
}
return i;
}
}
} else {
return ctx->nb_registered_frames++;
}

av_log(avctx, AV_LOG_ERROR, "Too many registered CUDA frames\n");
return AVERROR(ENOMEM);
}

static int nvenc_register_frame(AVCodecContext *avctx, const AVFrame *frame)
{
NvencContext *ctx = avctx->priv_data;
NvencDynLoadFunctions *dl_fn = &ctx->nvenc_dload_funcs;
NV_ENCODE_API_FUNCTION_LIST *p_nvenc = &dl_fn->nvenc_funcs;

AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
NV_ENC_REGISTER_RESOURCE reg;
int i, idx, ret;

for (i = 0; i < ctx->nb_registered_frames; i++) {
if (ctx->registered_frames[i].ptr == (CUdeviceptr)frame->data[0])
return i;
}

idx = nvenc_find_free_reg_resource(avctx);
if (idx < 0)
return idx;

reg.version = NV_ENC_REGISTER_RESOURCE_VER;
reg.resourceType = NV_ENC_INPUT_RESOURCE_TYPE_CUDADEVICEPTR;
reg.width = frames_ctx->width;
reg.height = frames_ctx->height;
reg.bufferFormat = ctx->surfaces[0].format;
reg.pitch = frame->linesize[0];
reg.resourceToRegister = frame->data[0];

ret = p_nvenc->nvEncRegisterResource(ctx->nvencoder, &reg);
if (ret != NV_ENC_SUCCESS) {
nvenc_print_error(avctx, ret, "Error registering an input resource");
return AVERROR_UNKNOWN;
}

ctx->registered_frames[idx].ptr = (CUdeviceptr)frame->data[0];
ctx->registered_frames[idx].regptr = reg.registeredResource;
return idx;
}

static int nvenc_upload_frame(AVCodecContext *avctx, const AVFrame *frame,
NvencSurface *nvenc_frame)
{
@@ -1345,24 +1501,50 @@ static int nvenc_upload_frame(AVCodecContext *avctx, const AVFrame *frame,

int res;
NVENCSTATUS nv_status;
NV_ENC_LOCK_INPUT_BUFFER lockBufferParams = { 0 };

lockBufferParams.version = NV_ENC_LOCK_INPUT_BUFFER_VER;
lockBufferParams.inputBuffer = nvenc_frame->input_surface;
if (avctx->pix_fmt == AV_PIX_FMT_CUDA) {
int reg_idx = nvenc_register_frame(avctx, frame);
if (reg_idx < 0) {
av_log(avctx, AV_LOG_ERROR, "Could not register an input CUDA frame\n");
return reg_idx;
}

nv_status = p_nvenc->nvEncLockInputBuffer(ctx->nvencoder, &lockBufferParams);
if (nv_status != NV_ENC_SUCCESS) {
return nvenc_print_error(avctx, nv_status, "Failed locking nvenc input buffer");
}
res = av_frame_ref(nvenc_frame->in_ref, frame);
if (res < 0)
return res;

res = nvenc_copy_frame(avctx, nvenc_frame, &lockBufferParams, frame);
nvenc_frame->in_map.version = NV_ENC_MAP_INPUT_RESOURCE_VER;
nvenc_frame->in_map.registeredResource = ctx->registered_frames[reg_idx].regptr;
nv_status = p_nvenc->nvEncMapInputResource(ctx->nvencoder, &nvenc_frame->in_map);
if (nv_status != NV_ENC_SUCCESS) {
av_frame_unref(nvenc_frame->in_ref);
return nvenc_print_error(avctx, nv_status, "Error mapping an input resource");
}

nv_status = p_nvenc->nvEncUnlockInputBuffer(ctx->nvencoder, nvenc_frame->input_surface);
if (nv_status != NV_ENC_SUCCESS) {
return nvenc_print_error(avctx, nv_status, "Failed unlocking input buffer!");
}
ctx->registered_frames[reg_idx].mapped = 1;
nvenc_frame->reg_idx = reg_idx;
nvenc_frame->input_surface = nvenc_frame->in_map.mappedResource;
return 0;
} else {
NV_ENC_LOCK_INPUT_BUFFER lockBufferParams = { 0 };

return res;
lockBufferParams.version = NV_ENC_LOCK_INPUT_BUFFER_VER;
lockBufferParams.inputBuffer = nvenc_frame->input_surface;

nv_status = p_nvenc->nvEncLockInputBuffer(ctx->nvencoder, &lockBufferParams);
if (nv_status != NV_ENC_SUCCESS) {
return nvenc_print_error(avctx, nv_status, "Failed locking nvenc input buffer");
}

res = nvenc_copy_frame(avctx, nvenc_frame, &lockBufferParams, frame);

nv_status = p_nvenc->nvEncUnlockInputBuffer(ctx->nvencoder, nvenc_frame->input_surface);
if (nv_status != NV_ENC_SUCCESS) {
return nvenc_print_error(avctx, nv_status, "Failed unlocking input buffer!");
}

return res;
}
}

static void nvenc_codec_specific_pic_params(AVCodecContext *avctx,
@@ -1436,6 +1618,15 @@ static int process_output_surface(AVCodecContext *avctx, AVPacket *pkt, NvencSur
if (nv_status != NV_ENC_SUCCESS)
nvenc_print_error(avctx, nv_status, "Failed unlocking bitstream buffer, expect the gates of mordor to open");


if (avctx->pix_fmt == AV_PIX_FMT_CUDA) {
p_nvenc->nvEncUnmapInputResource(ctx->nvencoder, tmpoutsurf->in_map.mappedResource);
av_frame_unref(tmpoutsurf->in_ref);
ctx->registered_frames[tmpoutsurf->reg_idx].mapped = 0;

tmpoutsurf->input_surface = NULL;
}

switch (lock_params.pictureType) {
case NV_ENC_PIC_TYPE_IDR:
pkt->flags |= AV_PKT_FLAG_KEY;
@@ -1597,6 +1788,9 @@ static const enum AVPixelFormat pix_fmts_nvenc[] = {
AV_PIX_FMT_YUV420P,
AV_PIX_FMT_NV12,
AV_PIX_FMT_YUV444P,
#if CONFIG_CUDA
AV_PIX_FMT_CUDA,
#endif
AV_PIX_FMT_NONE
};



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