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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 <assert.h>
#include <stdint.h>
#include <mutex>
#include <vector>
#include <string>
#include <iostream>
#include <sstream>
#include <string.h>
#include "../../../Interface/nvcuvid.h"
#include "../Utils/NvCodecUtils.h"
#include <map>
#define MAX_FRM_CNT 32
typedef enum{
SEI_TYPE_TIME_CODE_H264 = 1,
SEI_TYPE_USER_DATA_REGISTERED = 4,
SEI_TYPE_USER_DATA_UNREGISTERED = 5,
SEI_TYPE_TIME_CODE = 136,
SEI_TYPE_MASTERING_DISPLAY_COLOR_VOLUME = 137,
SEI_TYPE_CONTENT_LIGHT_LEVEL_INFO = 144,
SEI_TYPE_ALTERNATIVE_TRANSFER_CHARACTERISTICS = 147
} SEI_H264_HEVC_MPEG2_PAYLOAD_TYPE;
/**
* @brief Exception class for error reporting from the decode API.
*/
class NVDECException : public std::exception
{
public:
NVDECException(const std::string& errorStr, const CUresult errorCode)
: m_errorString(errorStr), m_errorCode(errorCode) {}
virtual ~NVDECException() throw() {}
virtual const char* what() const throw() { return m_errorString.c_str(); }
CUresult getErrorCode() const { return m_errorCode; }
const std::string& getErrorString() const { return m_errorString; }
static NVDECException makeNVDECException(const std::string& errorStr, const CUresult errorCode,
const std::string& functionName, const std::string& fileName, int lineNo);
private:
std::string m_errorString;
CUresult m_errorCode;
};
inline NVDECException NVDECException::makeNVDECException(const std::string& errorStr, const CUresult errorCode, const std::string& functionName,
const std::string& fileName, int lineNo)
{
std::ostringstream errorLog;
errorLog << functionName << " : " << errorStr << " at " << fileName << ":" << lineNo << std::endl;
NVDECException exception(errorLog.str(), errorCode);
return exception;
}
#define NVDEC_THROW_ERROR( errorStr, errorCode ) \
do \
{ \
throw NVDECException::makeNVDECException(errorStr, errorCode, __FUNCTION__, __FILE__, __LINE__); \
} while (0)
#define NVDEC_API_CALL( cuvidAPI ) \
do \
{ \
CUresult errorCode = cuvidAPI; \
if( errorCode != CUDA_SUCCESS) \
{ \
std::ostringstream errorLog; \
errorLog << #cuvidAPI << " returned error " << errorCode; \
throw NVDECException::makeNVDECException(errorLog.str(), errorCode, __FUNCTION__, __FILE__, __LINE__); \
} \
} while (0)
struct Rect {
int l, t, r, b;
};
struct Dim {
int w, h;
};
/**
* @brief Base class for decoder interface.
*/
class NvDecoder {
public:
/**
* @brief This function is used to initialize the decoder session.
* Application must call this function to initialize the decoder, before
* starting to decode any frames.
*/
NvDecoder(CUcontext cuContext, bool bUseDeviceFrame, cudaVideoCodec eCodec, bool bLowLatency = false,
bool bDeviceFramePitched = false, const Rect *pCropRect = NULL, const Dim *pResizeDim = NULL,
bool extract_user_SEI_Message = false, int maxWidth = 0, int maxHeight = 0, unsigned int clkRate = 1000,
bool force_zero_latency = false, unsigned int initial_dec_surfaces = 0, CUstream custream=NULL);
~NvDecoder();
/**
* @brief This function is used to get the current CUDA context.
*/
CUcontext GetContext() { return m_cuContext; }
/**
* @brief This function is used to get the output frame width.
* NV12/P016/NV16/P216 output format width is 2 byte aligned because of U and V interleave
*/
int GetWidth() { assert(m_nWidth); return (m_eOutputFormat == cudaVideoSurfaceFormat_NV12 || m_eOutputFormat == cudaVideoSurfaceFormat_P016
|| m_eOutputFormat == cudaVideoSurfaceFormat_NV16 || m_eOutputFormat == cudaVideoSurfaceFormat_P216)
? (m_nWidth + 1) & ~1 : m_nWidth; }
/**
* @brief This function is used to get the actual decode width
*/
int GetDecodeWidth() { assert(m_nWidth); return m_nWidth; }
/**
* @brief This function is used to get the output frame height (Luma height).
*/
int GetHeight() { assert(m_nLumaHeight); return m_nLumaHeight; }
/**
* @brief This function is used to get the current chroma height.
*/
int GetChromaHeight() { assert(m_nChromaHeight); return m_nChromaHeight; }
/**
* @brief This function is used to get the number of chroma planes.
*/
int GetNumChromaPlanes() { assert(m_nNumChromaPlanes); return m_nNumChromaPlanes; }
/**
* @brief This function is used to get the current frame size based on pixel format.
*/
int GetFrameSize() { assert(m_nWidth); return GetWidth() * (m_nLumaHeight + (m_nChromaHeight * m_nNumChromaPlanes)) * m_nBPP; }
/**
* @brief This function is used to get the current frame Luma plane size.
*/
int GetLumaPlaneSize() { assert(m_nWidth); return GetWidth() * m_nLumaHeight * m_nBPP; }
/**
* @brief This function is used to get the current frame chroma plane size.
*/
int GetChromaPlaneSize() { assert(m_nWidth); return GetWidth() * (m_nChromaHeight * m_nNumChromaPlanes) * m_nBPP; }
/**
* @brief This function is used to get the pitch of the device buffer holding the decoded frame.
*/
int GetDeviceFramePitch() { assert(m_nWidth); return m_nDeviceFramePitch ? (int)m_nDeviceFramePitch : GetWidth() * m_nBPP; }
/**
* @brief This function is used to get the bit depth associated with the pixel format.
*/
int GetBitDepth() { assert(m_nWidth); return m_nBitDepthMinus8 + 8; }
/**
* @brief This function is used to get the bytes used per pixel.
*/
int GetBPP() { assert(m_nWidth); return m_nBPP; }
/**
* @brief This function is used to get the YUV chroma format
*/
cudaVideoSurfaceFormat GetOutputFormat() { return m_eOutputFormat; }
/**
* @brief This function is used to get the output surface chroma format
*/
cudaVideoChromaFormat GetOutputChromaFormat() { return GetChromaFormat(m_eOutputFormat); }
/**
* @brief This function is used to get information about the video stream (codec, display parameters etc)
*/
CUVIDEOFORMAT GetVideoFormatInfo() { assert(m_nWidth); return m_videoFormat; }
/**
* @brief This function is used to get the chroma format from surface format
*/
cudaVideoChromaFormat GetChromaFormat(cudaVideoSurfaceFormat);
/**
* @brief This function is used to get codec string from codec id
*/
const char *GetCodecString(cudaVideoCodec eCodec);
/**
* @brief This function is used to print information about the video stream
*/
std::string GetVideoInfo() const { return m_videoInfo.str(); }
/**
* @brief This function decodes a frame and returns the number of frames that are available for
* display. All frames that are available for display should be read before making a subsequent decode call.
* @param pData - pointer to the data buffer that is to be decoded
* @param nSize - size of the data buffer in bytes
* @param nFlags - CUvideopacketflags for setting decode options
* @param nTimestamp - presentation timestamp
*/
int Decode(const uint8_t *pData, int nSize, int nFlags = 0, int64_t nTimestamp = 0);
/**
* @brief This function returns a decoded frame and timestamp. This function should be called in a loop for
* fetching all the frames that are available for display.
*/
uint8_t* GetFrame(int64_t* pTimestamp = nullptr);
/**
* @brief This function decodes a frame and returns the locked frame buffers
* This makes the buffers available for use by the application without the buffers
* getting overwritten, even if subsequent decode calls are made. The frame buffers
* remain locked, until UnlockFrame() is called
*/
uint8_t* GetLockedFrame(int64_t* pTimestamp = nullptr);
/**
* @brief This function unlocks the frame buffer and makes the frame buffers available for write again
* @param ppFrame - pointer to array of frames that are to be unlocked
* @param nFrame - number of frames to be unlocked
*/
void UnlockFrame(uint8_t **pFrame);
/**
* @brief This function allows app to set decoder reconfig params
* @param pCropRect - cropping rectangle coordinates
* @param pResizeDim - width and height of resized output
*/
int setReconfigParams(const Rect * pCropRect, const Dim * pResizeDim);
/**
* @brief This function allows app to set operating point for AV1 SVC clips
* @param opPoint - operating point of an AV1 scalable bitstream
* @param bDispAllLayers - Output all decoded frames of an AV1 scalable bitstream
*/
void SetOperatingPoint(const uint32_t opPoint, const bool bDispAllLayers) { m_nOperatingPoint = opPoint; m_bDispAllLayers = bDispAllLayers; }
// start a timer
void startTimer() { m_stDecode_time.Start(); }
// stop the timer
double stopTimer() { return m_stDecode_time.Stop(); }
protected:
/**
* @brief This function gets called when a sequence is ready to be decoded. The function also gets called
when there is format change
*/
virtual int HandleVideoSequence(CUVIDEOFORMAT *pVideoFormat);
private:
/**
* @brief Callback function to be registered for getting a callback when decoding of sequence starts
*/
static int CUDAAPI HandleVideoSequenceProc(void *pUserData, CUVIDEOFORMAT *pVideoFormat) { return ((NvDecoder *)pUserData)->HandleVideoSequence(pVideoFormat); }
/**
* @brief Callback function to be registered for getting a callback when a decoded frame is ready to be decoded
*/
static int CUDAAPI HandlePictureDecodeProc(void *pUserData, CUVIDPICPARAMS *pPicParams) { return ((NvDecoder *)pUserData)->HandlePictureDecode(pPicParams); }
/**
* @brief Callback function to be registered for getting a callback when a decoded frame is available for display
*/
static int CUDAAPI HandlePictureDisplayProc(void *pUserData, CUVIDPARSERDISPINFO *pDispInfo) { return ((NvDecoder *)pUserData)->HandlePictureDisplay(pDispInfo); }
/**
* @brief Callback function to be registered for getting a callback to get operating point when AV1 SVC sequence header start.
*/
static int CUDAAPI HandleOperatingPointProc(void *pUserData, CUVIDOPERATINGPOINTINFO *pOPInfo) { return ((NvDecoder *)pUserData)->GetOperatingPoint(pOPInfo); }
/**
* @brief Callback function to be registered for getting a callback when all the unregistered user SEI Messages are parsed for a frame.
*/
static int CUDAAPI HandleSEIMessagesProc(void *pUserData, CUVIDSEIMESSAGEINFO *pSEIMessageInfo) { return ((NvDecoder *)pUserData)->GetSEIMessage(pSEIMessageInfo); }
/**
* @brief This function gets called when a picture is ready to be decoded. cuvidDecodePicture is called from this function
* to decode the picture
*/
int HandlePictureDecode(CUVIDPICPARAMS *pPicParams);
/**
* @brief This function gets called after a picture is decoded and available for display. Frames are fetched and stored in
internal buffer
*/
int HandlePictureDisplay(CUVIDPARSERDISPINFO *pDispInfo);
/**
* @brief This function gets called when AV1 sequence encounter more than one operating points
*/
int GetOperatingPoint(CUVIDOPERATINGPOINTINFO *pOPInfo);
/**
* @brief This function gets called when all unregistered user SEI messages are parsed for a frame
*/
int GetSEIMessage(CUVIDSEIMESSAGEINFO *pSEIMessageInfo);
/**
* @brief This function reconfigure decoder if there is a change in sequence params.
*/
int ReconfigureDecoder(CUVIDEOFORMAT *pVideoFormat);
private:
CUcontext m_cuContext = NULL;
CUvideoctxlock m_ctxLock;
CUvideoparser m_hParser = NULL;
CUvideodecoder m_hDecoder = NULL;
bool m_bUseDeviceFrame;
// dimension of the output
unsigned int m_nWidth = 0, m_nLumaHeight = 0, m_nChromaHeight = 0;
unsigned int m_nNumChromaPlanes = 0;
// height of the mapped surface
int m_nSurfaceHeight = 0;
int m_nSurfaceWidth = 0;
cudaVideoCodec m_eCodec = cudaVideoCodec_NumCodecs;
cudaVideoChromaFormat m_eChromaFormat = cudaVideoChromaFormat_420;
cudaVideoSurfaceFormat m_eOutputFormat = cudaVideoSurfaceFormat_NV12;
int m_nBitDepthMinus8 = 0;
int m_nBPP = 1;
CUVIDEOFORMAT m_videoFormat = {};
Rect m_displayRect = {};
// stock of frames
std::vector<uint8_t *> m_vpFrame;
// timestamps of decoded frames
std::vector<int64_t> m_vTimestamp;
int m_nDecodedFrame = 0, m_nDecodedFrameReturned = 0;
int m_nDecodePicCnt = 0, m_nPicNumInDecodeOrder[MAX_FRM_CNT];
CUVIDSEIMESSAGEINFO *m_pCurrSEIMessage = NULL;
CUVIDSEIMESSAGEINFO m_SEIMessagesDisplayOrder[MAX_FRM_CNT][2];
FILE *m_fpSEI = NULL;
bool m_bEndDecodeDone = false;
std::mutex m_mtxVPFrame;
int m_nFrameAlloc = 0;
CUstream m_cuvidStream = 0;
bool m_bExternalStream = 0;
bool m_bDeviceFramePitched = false;
size_t m_nDeviceFramePitch = 0;
Rect m_cropRect = {};
Dim m_resizeDim = {};
std::ostringstream m_videoInfo;
unsigned int m_nMaxWidth = 0, m_nMaxHeight = 0;
bool m_bReconfigExternal = false;
bool m_bReconfigExtPPChange = false;
bool m_bNumSurfacesChange = false;
StopWatch m_stDecode_time;
unsigned int m_nOperatingPoint = 0;
bool m_bDispAllLayers = false;
// In H.264, there is an inherent display latency for video contents
// which do not have num_reorder_frames=0 in the VUI. This applies to
// All-Intra and IPPP sequences as well. If the user wants zero display
// latency for All-Intra and IPPP sequences, the below flag will enable
// the display callback immediately after the decode callback.
bool m_bForce_zero_latency = false;
bool m_bExtractSEIMessage = false;
// Memory optimization : Allocate less number of decode surfaces,
// increase the surfaces through ReconfigureDecoder api if needed
bool m_bMemoryOptimize = false;
int m_nNumDecSurfaces = 0;
};
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