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* This copyright notice applies to this header file only:
*
* Copyright (c) 2010-2024 NVIDIA Corporation
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the software, and to permit persons to whom the
* software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#pragma once
#include <vector>
#include <stdint.h>
#include <mutex>
#include <cuda.h>
#include "NvEncoder.h"
#define CUDA_DRVAPI_CALL( call ) \
do \
{ \
CUresult err__ = call; \
if (err__ != CUDA_SUCCESS) \
{ \
const char *szErrName = NULL; \
cuGetErrorName(err__, &szErrName); \
std::ostringstream errorLog; \
errorLog << "CUDA driver API error " << szErrName ; \
throw NVENCException::makeNVENCException(errorLog.str(), NV_ENC_ERR_GENERIC, __FUNCTION__, __FILE__, __LINE__); \
} \
} \
while (0)
/**
* @brief Encoder for CUDA device memory.
*/
class NvEncoderCuda : public NvEncoder
{
public:
NvEncoderCuda(CUcontext cuContext, uint32_t nWidth, uint32_t nHeight, NV_ENC_BUFFER_FORMAT eBufferFormat,
uint32_t nExtraOutputDelay = 3, bool bMotionEstimationOnly = false, bool bOPInVideoMemory = false, bool bUseIVFContainer = true);
virtual ~NvEncoderCuda();
/**
* @brief This is a static function to copy input data from host memory to device memory.
* This function assumes YUV plane is a single contiguous memory segment.
*/
static void CopyToDeviceFrame(CUcontext device,
void* pSrcFrame,
uint32_t nSrcPitch,
CUdeviceptr pDstFrame,
uint32_t dstPitch,
int width,
int height,
CUmemorytype srcMemoryType,
NV_ENC_BUFFER_FORMAT pixelFormat,
const uint32_t dstChromaOffsets[],
uint32_t numChromaPlanes,
bool bUnAlignedDeviceCopy = false,
CUstream stream = NULL);
/**
* @brief This is a static function to copy input data from host memory to device memory.
* Application must pass a seperate device pointer for each YUV plane.
*/
static void CopyToDeviceFrame(CUcontext device,
void* pSrcFrame,
uint32_t nSrcPitch,
CUdeviceptr pDstFrame,
uint32_t dstPitch,
int width,
int height,
CUmemorytype srcMemoryType,
NV_ENC_BUFFER_FORMAT pixelFormat,
CUdeviceptr dstChromaPtr[],
uint32_t dstChromaPitch,
uint32_t numChromaPlanes,
bool bUnAlignedDeviceCopy = false);
/**
* @brief This function sets input and output CUDA streams
*/
void SetIOCudaStreams(NV_ENC_CUSTREAM_PTR inputStream, NV_ENC_CUSTREAM_PTR outputStream);
protected:
/**
* @brief This function is used to release the input buffers allocated for encoding.
* This function is an override of virtual function NvEncoder::ReleaseInputBuffers().
*/
virtual void ReleaseInputBuffers() override;
private:
/**
* @brief This function is used to allocate input buffers for encoding.
* This function is an override of virtual function NvEncoder::AllocateInputBuffers().
*/
virtual void AllocateInputBuffers(int32_t numInputBuffers) override;
private:
/**
* @brief This is a private function to release CUDA device memory used for encoding.
*/
void ReleaseCudaResources();
protected:
CUcontext m_cuContext;
size_t m_cudaPitch = 0;
};
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