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Copy pathNvEncoderCuda.h
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111 lines (99 loc) · 4.72 KB
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/*
* Copyright 2017-2020 NVIDIA Corporation. All rights reserved.
*
* Please refer to the NVIDIA end user license agreement (EULA) associated
* with this source code for terms and conditions that govern your use of
* this software. Any use, reproduction, disclosure, or distribution of
* this software and related documentation outside the terms of the EULA
* is strictly prohibited.
*
*/
#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);
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;
private:
size_t m_cudaPitch = 0;
};