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* This copyright notice applies to this header file only:
*
* Copyright (c) 2010-2023 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 "nvEncodeAPI.h"
#include <stdint.h>
#include <mutex>
#include <string>
#include <iostream>
#include <sstream>
#include <string.h>
#include <math.h>
#include "NvEncoder/NvEncoderCuda.h"
#include "../Utils/Metrics.h"
#define MAX_QP_H264 51
#define MAX_QP_HEVC 51
#define MAX_QP_AV1 255
#define MAX_CQ 51
#define MAX_NUM_ENC_STATE_BUF_AV1 32
#define MAX_NUM_ENC_STATE_BUF_HEVC 16
#define MAX_NUM_ENC_STATE_BUF_H264 16
struct NvEncIterationData
{
uint32_t iterNum;
uint32_t inputIdx;
uint32_t outputIdx;
uint32_t compIdx;
uint32_t stateIdx;
uint32_t dispIdx;
uint32_t recIdx;
};
struct NvEncBlockStatsInfo
{
NV_ENC_OUTPUT_STATS_LEVEL level;
uint32_t sizePerLevel;
uint32_t numElems;
uint32_t totalSize;
uint32_t elemDim;
uint32_t getLevelSize()
{
switch (level)
{
case NV_ENC_OUTPUT_STATS_ROW_LEVEL:
return sizeof(NV_ENC_OUTPUT_STATS_ROW);
case NV_ENC_OUTPUT_STATS_BLOCK_LEVEL:
return sizeof(NV_ENC_OUTPUT_STATS_BLOCK);
default:
return 0;
}
}
void calcNumOfElems(uint32_t w, uint32_t h)
{
uint32_t frameWidthInMb = (w + elemDim - 1) / elemDim;
uint32_t frameHeightInMb = (h + elemDim - 1) / elemDim;
switch (level)
{
case NV_ENC_OUTPUT_STATS_ROW_LEVEL:
numElems = frameHeightInMb;
break;
case NV_ENC_OUTPUT_STATS_BLOCK_LEVEL:
numElems = frameWidthInMb * frameHeightInMb;
break;
}
}
void calcSize(uint32_t w, uint32_t h, uint32_t b) {
elemDim = b;
sizePerLevel = getLevelSize();
calcNumOfElems(w, h);
totalSize = numElems * sizePerLevel;
}
uint32_t getTotalSize() {return totalSize;}
};
struct NvEncMultipleStates
{
std::vector<NvEncIterationData> encIterationData;
std::vector<bool> stateBufUsage;
std::vector<float> qualMetric;
std::vector<float> avgQPFrame;
std::vector<uint64_t> totalBitsFrame;
NvEncBlockStatsInfo statsInfo;
std::vector<void*> statsData;
std::vector<NvEncIterationData> findIterations(uint32_t dispIdx)
{
std::vector<NvEncIterationData> iterations;
for (size_t i = 0; i < encIterationData.size(); ++i)
{
const NvEncIterationData& element = encIterationData[i];
if (element.dispIdx == dispIdx)
{
iterations.push_back(element);
}
}
return iterations;
}
};
/**
* @brief Class for encode or ME only output in video memory feature for Cuda interfaces.
*/
class NvEncoderCudaIterative : public NvEncoderCuda
{
public:
/**
* @brief NvEncoderOutputInVidMem class constructor.
*/
NvEncoderCudaIterative(CUcontext cuContext, uint32_t nWidth, uint32_t nHeight, NV_ENC_BUFFER_FORMAT eBufferFormat);
/**
* @brief NvEncoder class virtual destructor.
*/
~NvEncoderCudaIterative();
/**
* @brief This function is used to initialize the encoder session.
* Application must call this function to initialize the encoder, before
* starting to encode or motion estimate any frames.
*/
void CreateEncoder(const NV_ENC_INITIALIZE_PARAMS* pEncoderParams) override;
/**
* @brief This function is used to encode a frame.
* Applications must call EncodeFrame() function to encode the uncompressed
* data, which has been copied to an input buffer obtained from the
* GetNextInputFrame() function.
* This function returns video memory buffer pointers containing compressed data
* in pOutputBuffer. If there is buffering enabled, this may return without
* any data in pOutputBuffer.
*/
void EncodeFrameConstantQuality(std::vector<std::vector<uint8_t>> &vPacket, std::vector<CUdeviceptr> vDeviceFrameBuffer, NV_ENC_RECONFIGURE_PARAMS* reconfigureParams, double minTargetQuality, double maxTargetQuality, uint32_t nQPDelta, uint32_t nFrame);
NVENCSTATUS EncodeFrameExternalLookahead(uint32_t frameIdx);
NVENCSTATUS EncodeFrameIteration(NV_ENC_PIC_PARAMS* picParams);
/**
* @brief This function to flush the encoder queue.
* The encoder might be queuing frames for B picture encoding or lookahead;
* the application must call EndEncode() to get all the queued encoded frames
* from the encoder. The application must call this function before destroying
* an encoder session. Video memory buffer pointer containing compressed data
* is returned in pOutputBuffer.
*/
void EndEncode(std::vector<std::vector<uint8_t>> &vPacket, std::vector<CUdeviceptr> vDeviceFrameBuffer, NV_ENC_RECONFIGURE_PARAMS* reconfigureParams, double minTargetQuality, double maxTargetQuality, uint32_t nQPDelta, uint32_t nFrame);
/**
* @brief This function is used to destroy the encoder session.
* Application must call this function to destroy the encoder session and
* clean up any allocated resources. The application must call EndEncode()
* function to get any queued encoded frames before calling DestroyEncoder().
*/
void DestroyEncoder();
/**
* @brief This function is used to get the size of output buffer required to be
* allocated in order to store the output.
*/
uint32_t GetOutputBufferSize();
/**
* @brief This function is used to map the input and output buffers to NvEncodeAPI.
*/
void MapResources(uint32_t bfrIdx);
void MapResourcesRecon(uint32_t bfrIdx);
void UnmapResources(uint32_t bfrIdx);
void UnmapResourcesRecon(uint32_t bfrIdx);
/**
* @brief This is a private function which is used to get video memory buffer pointer containing compressed data
* or motion estimation output from the encoder HW.
* This is called by EncodeFrame() function. If there is buffering enabled,
* this may return without any output data.
*/
void GetEncodedPacket(uint32_t currIter, uint32_t &frameIdxDisplay, bool &overlayFrame, uint32_t &recIdxOut);
uint32_t GetNewStateIdxBuf();
uint32_t GetNumOfEncStates(){return m_nNumEncStates;};
void InitStateBufferUsage(uint32_t nNumIterations);
void InitVPackets(uint32_t nNumIters);
void RestoreEncoderState(uint32_t bestIter, std::vector<NvEncIterationData> currItersData);
void InitializeBitstreamBuffers(uint32_t nNumBitStreamBuffers);
void DestroyBitstreamBuffers();
void RegisterInputResources(std::vector<void*> inputframes, NV_ENC_INPUT_RESOURCE_TYPE eResourceType, int width, int height, int pitch,
NV_ENC_BUFFER_FORMAT bufferFormat, bool bReferenceFrame, NV_ENC_BUFFER_USAGE bufferUsage);
void AllocateBuffers(int32_t numInputBuffers, NV_ENC_BUFFER_USAGE bufferUsage);
NVENCSTATUS DoEncode(NV_ENC_INPUT_PTR inputBuffer, NV_ENC_OUTPUT_PTR outputBuffer, NV_ENC_PIC_PARAMS *pPicParams, NV_ENC_INPUT_PTR reconBuffer, uint32_t compIdx);
int GetFrameSize(uint32_t pitch) const;
int GetFrameSize() const;
size_t GetCUDAPitch(){return m_cudaPitch;};
void updateQualParam(int32_t ¤tQP, int32_t deltaQP, bool& reachedLimit, NV_ENC_RECONFIGURE_PARAMS* reconfigureParams);
void collectFrameStats(void* stats);
private:
NvEncMultipleStates m_EncMultipleStates;
std::vector<NV_ENC_INPUT_PTR> m_vMappedReconBuffers;
std::vector<NV_ENC_REGISTERED_PTR> m_vRegisteredResourcesReconFrames;
std::vector<NvEncInputFrame> m_vReconFrames;
uint32_t m_nExtraOutputBuffers = 0; // AV1 only - may need extra buffer
uint32_t m_nNumEncStates = 0; // number of encoder states. This is higher than number of iterations when B frames are used
uint32_t m_nNumIterations = 0; // max number of iterations per frame
int32_t m_iToSendAllIterations = 0; // same as m_iToSend but includes all iterations
int32_t m_iGotAllIterations = 0; // same as m_iGot but includes all iterations
std::vector<std::vector<std::vector<uint8_t>>> m_vPackets; // keep track packets per iteration
};
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