shithub: openh264

ref: 9baaaa2a641df24e288b8fc88584a895d3418a30
dir: /codec/api/svc/codec_app_def.h/

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/*!
 * \copy
 *     Copyright (c)  2013, Cisco Systems
 *     All rights reserved.
 *
 *     Redistribution and use in source and binary forms, with or without
 *     modification, are permitted provided that the following conditions
 *     are met:
 *
 *        * Redistributions of source code must retain the above copyright
 *          notice, this list of conditions and the following disclaimer.
 *
 *        * Redistributions in binary form must reproduce the above copyright
 *          notice, this list of conditions and the following disclaimer in
 *          the documentation and/or other materials provided with the
 *          distribution.
 *
 *     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 *     LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 *     FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 *     COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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 *     BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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#ifndef WELS_VIDEO_CODEC_APPLICATION_DEFINITION_H__
#define WELS_VIDEO_CODEC_APPLICATION_DEFINITION_H__
/**
  * @file  codec_app_def.h
  * @brief Data and /or structures introduced in Cisco OpenH264 application
*/

#include "codec_def.h"
/* Constants */
#define MAX_TEMPORAL_LAYER_NUM		4
#define MAX_SPATIAL_LAYER_NUM		4
#define MAX_QUALITY_LAYER_NUM		4

#define MAX_LAYER_NUM_OF_FRAME		128
#define MAX_NAL_UNITS_IN_LAYER		128	///< predetermined here, adjust it later if need

#define MAX_RTP_PAYLOAD_LEN		1000
#define AVERAGE_RTP_PAYLOAD_LEN		800


#define SAVED_NALUNIT_NUM_TMP		( (MAX_SPATIAL_LAYER_NUM*MAX_QUALITY_LAYER_NUM) + 1 + MAX_SPATIAL_LAYER_NUM )  ///< SPS/PPS + SEI/SSEI + PADDING_NAL
#define MAX_SLICES_NUM_TMP			( ( MAX_NAL_UNITS_IN_LAYER - SAVED_NALUNIT_NUM_TMP ) / 3 )


#define AUTO_REF_PIC_COUNT  -1          ///< encoder selects the number of reference frame automatically
#define UNSPECIFIED_BIT_RATE 0          ///< to do: add detail comment

/**
* @brief Decoding status
*/
typedef enum {
  /**
  * Errors derived from bitstream parsing
  */
  dsErrorFree           = 0x00,   ///< bit stream error-free
  dsFramePending        = 0x01,   ///< need more throughput to generate a frame output,
  dsRefLost             = 0x02,   ///< layer lost at reference frame with temporal id 0
  dsBitstreamError      = 0x04,   ///< error bitstreams(maybe broken internal frame) the decoder cared
  dsDepLayerLost        = 0x08,   ///< dependented layer is ever lost
  dsNoParamSets         = 0x10,   ///< no parameter set NALs involved
  dsDataErrorConcealed  = 0x20,   ///< current data error concealed specified

  /**
  * Errors derived from logic level
  */
  dsInvalidArgument     = 0x1000, ///< invalid argument specified
  dsInitialOptExpected  = 0x2000, ///< initializing operation is expected
  dsOutOfMemory         = 0x4000, ///< out of memory due to new request
  /**
  * ANY OTHERS?
  */
  dsDstBufNeedExpan     = 0x8000  ///< actual picture size exceeds size of dst pBuffer feed in decoder, so need expand its size

} DECODING_STATE;

/**
* @brief Option types introduced in SVC encoder application
*/
typedef enum {
  ENCODER_OPTION_DATAFORMAT = 0,
  ENCODER_OPTION_IDR_INTERVAL,               ///< IDR period,0/-1 means no Intra period (only the first frame); lager than 0 means the desired IDR period, must be multiple of (2^temporal_layer)
  ENCODER_OPTION_SVC_ENCODE_PARAM_BASE,      ///< structure of Base Param
  ENCODER_OPTION_SVC_ENCODE_PARAM_EXT,       ///< structure of Extension Param
  ENCODER_OPTION_FRAME_RATE,                 ///< maximal input frame rate, current supported range: MAX_FRAME_RATE = 30,MIN_FRAME_RATE = 1
  ENCODER_OPTION_BITRATE,
  ENCODER_OPTION_MAX_BITRATE,
  ENCODER_OPTION_INTER_SPATIAL_PRED,
  ENCODER_OPTION_RC_MODE,
  ENCODER_PADDING_PADDING,                   ///< 0:disable padding;1:padding

  ENCODER_OPTION_PROFILE,                    ///< assgin the profile for each layer
  ENCODER_OPTION_LEVEL,                      ///< assgin the level for each layer
  ENCODER_OPTION_NUMBER_REF,                 ///< the number of refererence frame
  ENCODER_OPTION_DELIVERY_STATUS,            ///< the delivery info which is a feedback from app level

  ENCODER_LTR_RECOVERY_REQUEST,
  ENCODER_LTR_MARKING_FEEDBACK,
  ENCODER_LTR_MARKING_PERIOD,
  ENCODER_OPTION_LTR,                        ///< 0:disable LTR;larger than 0 enable LTR; LTR number is fixed to be 2 in current encoder
  ENCODER_OPTION_COMPLEXITY,

  ENCODER_OPTION_ENABLE_SSEI,                ///< enable SSEI: true--enable ssei; false--disable ssei
  ENCODER_OPTION_ENABLE_PREFIX_NAL_ADDING,   ///< enable prefix: true--enable prefix; false--disable prefix
  ENCODER_OPTION_ENABLE_SPS_PPS_ID_ADDITION, ///< enable pSps/pPps id addition: true--enable pSps/pPps id; false--disable pSps/pPps id addistion

  ENCODER_OPTION_CURRENT_PATH,
  ENCODER_OPTION_DUMP_FILE,                  ///< dump layer reconstruct frame to a specified file
  ENCODER_OPTION_TRACE_LEVEL,                ///< trace info based on the trace level
  ENCODER_OPTION_TRACE_CALLBACK,             ///< a void (*)(void* context, int level, const char* message) function which receives log messages
  ENCODER_OPTION_TRACE_CALLBACK_CONTEXT,     ///< context info of trace callback

  ENCODER_OPTION_GET_STATISTICS,             ///< read only
  ENCODER_OPTION_STATISTICS_LOG_INTERVAL,    ///< log interval in millisecond

  ENCODER_OPTION_IS_LOSSLESS_LINK            ///< advanced algorithmetic settings
} ENCODER_OPTION;

/**
* @brief Option types introduced in decoder application
*/
typedef enum {
  DECODER_OPTION_DATAFORMAT = 0,        ///< color format, now supports 23 only (I420)
  DECODER_OPTION_END_OF_STREAM,	        ///< end of stream flag
  DECODER_OPTION_VCL_NAL,               ///< feedback whether or not have VCL NAL in current AU for application layer
  DECODER_OPTION_TEMPORAL_ID,           ///< feedback temporal id for application layer
  DECODER_OPTION_FRAME_NUM,             ///< feedback current decoded frame number
  DECODER_OPTION_IDR_PIC_ID,	        ///< feedback current frame belong to which IDR period
  DECODER_OPTION_LTR_MARKING_FLAG,	    ///< feedback wether current frame mark a LTR
  DECODER_OPTION_LTR_MARKED_FRAME_NUM,	///< feedback frame num marked by current Frame
  DECODER_OPTION_ERROR_CON_IDC,         ///< not finished yet, indicate decoder error concealment status, in progress
  DECODER_OPTION_TRACE_LEVEL,
  DECODER_OPTION_TRACE_CALLBACK,        ///< a void (*)(void* context, int level, const char* message) function which receives log messages
  DECODER_OPTION_TRACE_CALLBACK_CONTEXT,///< context info of trace callbac

  DECODER_OPTION_GET_STATISTICS

} DECODER_OPTION;

/**
* @brief Enumerate the type of error concealment methods
*/
typedef enum {
  ERROR_CON_DISABLE = 0,
  ERROR_CON_FRAME_COPY,
  ERROR_CON_SLICE_COPY,
  ERROR_CON_FRAME_COPY_CROSS_IDR,
  ERROR_CON_SLICE_COPY_CROSS_IDR,
  ERROR_CON_SLICE_COPY_CROSS_IDR_FREEZE_RES_CHANGE,
  ERROR_CON_SLICE_MV_COPY_CROSS_IDR,
  ERROR_CON_SLICE_MV_COPY_CROSS_IDR_FREEZE_RES_CHANGE
} ERROR_CON_IDC;
/**
* @brief Feedback that whether or not have VCL NAL in current AU
*/
typedef enum {
  FEEDBACK_NON_VCL_NAL = 0,
  FEEDBACK_VCL_NAL,
  FEEDBACK_UNKNOWN_NAL
} FEEDBACK_VCL_NAL_IN_AU;

/**
* @brief Type of layer being encoded
*/
typedef enum {
  NON_VIDEO_CODING_LAYER = 0,
  VIDEO_CODING_LAYER = 1
} LAYER_TYPE;

/**
* @brief Spatial layer num
*/
typedef enum {
  SPATIAL_LAYER_0 = 0,
  SPATIAL_LAYER_1 = 1,
  SPATIAL_LAYER_2 = 2,
  SPATIAL_LAYER_3 = 3,
  SPATIAL_LAYER_ALL = 4
} LAYER_NUM;

/**
* @brief Enumerate the type of video bitstream which is provided to decoder
*/
typedef enum {
  VIDEO_BITSTREAM_AVC               = 0,
  VIDEO_BITSTREAM_SVC               = 1,
  VIDEO_BITSTREAM_DEFAULT           = VIDEO_BITSTREAM_SVC
} VIDEO_BITSTREAM_TYPE;

/**
* @brief Enumerate the type of key frame request
*/
typedef enum {
  NO_RECOVERY_REQUSET  = 0,
  LTR_RECOVERY_REQUEST = 1,
  IDR_RECOVERY_REQUEST = 2,
  NO_LTR_MARKING_FEEDBACK = 3,
  LTR_MARKING_SUCCESS = 4,
  LTR_MARKING_FAILED = 5
} KEY_FRAME_REQUEST_TYPE;

/**
* @brief Structure for LTR recover request
*/
typedef struct {
  unsigned int uiFeedbackType;       ///< IDR request or LTR recovery request
  unsigned int uiIDRPicId;           ///< distinguish request from different IDR
  int          iLastCorrectFrameNum;
  int          iCurrentFrameNum;     ///< specify current decoder frame_num.
} SLTRRecoverRequest;

/**
* @brief Structure for LTR marking feedback
*/
typedef struct {
  unsigned int  uiFeedbackType; ///< mark failed or successful
  unsigned int  uiIDRPicId;     ///< distinguish request from different IDR
  int           iLTRFrameNum;   ///< specify current decoder frame_num
} SLTRMarkingFeedback;

/**
* @brief Structure for LTR configuration
*/
typedef struct {
  bool   bEnableLongTermReference; ///< 1: on, 0: off
  int    iLTRRefNum;               ///< TODO: not supported to set it arbitrary yet
} SLTRConfig;

/**
* @brief Structure for slice argument
*/
typedef struct {
  unsigned int
  uiSliceMbNum[MAX_SLICES_NUM_TMP];        ///< only used when uiSliceMode=2;here we use a tmp fixed value since MAX_SLICES_NUM is not defined here and its definition may be changed;
  unsigned int      uiSliceNum;            ///< only used when uiSliceMode=1
  unsigned int      uiSliceSizeConstraint; ///< only used when uiSliceMode=4
} SSliceArgument;                          ///< not all the elements in this argument will be used, how it will be used depends on uiSliceMode; please refer to SliceModeEnum

/**
* @brief Enumerate the type of slice mode
*/
typedef enum {
  SM_SINGLE_SLICE         = 0, ///<	| SliceNum==1
  SM_FIXEDSLCNUM_SLICE    = 1, ///<	| according to SliceNum        | enabled dynamic slicing for multi-thread
  SM_RASTER_SLICE         = 2, ///<	| according to SlicesAssign    | need input of MB numbers each slice. In addition, if other constraint in SSliceArgument is presented, need to follow the constraints. Typically if MB num and slice size are both constrained, re-encoding may be involved.
  SM_ROWMB_SLICE          = 3, ///< | according to PictureMBHeight | typical of single row of mbs each slice + slice size constraint which including re-encoding
  SM_DYN_SLICE            = 4, ///<	| according to SliceSize       | dynamic slicing (have no idea about slice_nums until encoding current frame)
  SM_AUTO_SLICE           = 5, ///<	| according to thread number
  SM_RESERVED             = 6
} SliceModeEnum;

/**
* @brief Enumerate the type of rate control mode
*/
typedef enum {
  RC_QUALITY_MODE = 0,     ///< quality mode
  RC_BITRATE_MODE = 1,     ///< bitrate mode
  RC_BUFFERBASED_MODE = 2, ///< no bitrate control,only using buffer status,adjust the video quality
  RC_OFF_MODE = -1         ///< rate control off mode
} RC_MODES;

/**
* @brief Enumerate the type of profile id
*/
typedef enum {
  PRO_UNKNOWN   = 0,
  PRO_BASELINE	= 66,
  PRO_MAIN		= 77,
  PRO_EXTENDED	= 88,
  PRO_HIGH		= 100,
  PRO_HIGH10	= 110,
  PRO_HIGH422	= 122,
  PRO_HIGH444   = 144,
  PRO_CAVLC444	= 244,

  PRO_SCALABLE_BASELINE	= 83,
  PRO_SCALABLE_HIGH		= 86
} EProfileIdc;

/**
* @brief Enumerate the type of level id
*/
typedef enum {
  LEVEL_UNKNOWN,
  LEVEL_1_0,
  LEVEL_1_B,
  LEVEL_1_1,
  LEVEL_1_2,
  LEVEL_1_3,
  LEVEL_2_0,
  LEVEL_2_1,
  LEVEL_2_2,
  LEVEL_3_0,
  LEVEL_3_1,
  LEVEL_3_2,
  LEVEL_4_0,
  LEVEL_4_1,
  LEVEL_4_2,
  LEVEL_5_0,
  LEVEL_5_1,
  LEVEL_5_2
} ELevelIdc;

/**
* @brief Enumerate the type of wels log
*/
enum {
  WELS_LOG_QUIET       = 0x00,          ///< quiet mode
  WELS_LOG_ERROR       = 1 << 0,        ///< error log iLevel
  WELS_LOG_WARNING     = 1 << 1,        ///< Warning log iLevel
  WELS_LOG_INFO        = 1 << 2,        ///< information log iLevel
  WELS_LOG_DEBUG       = 1 << 3,        ///< debug log, critical algo log
  WELS_LOG_DETAIL      = 1 << 4,        ///< per packet/frame log
  WELS_LOG_RESV        = 1 << 5,        ///< resversed log iLevel
  WELS_LOG_LEVEL_COUNT = 6,
  WELS_LOG_DEFAULT     = WELS_LOG_DEBUG	///< default log iLevel in Wels codec
};

/**
* @brief Structure for slice configuration
*/
typedef struct {
  SliceModeEnum uiSliceMode;    ///< by default, uiSliceMode will be SM_SINGLE_SLICE
  SSliceArgument sSliceArgument;
} SSliceConfig;
/**
* @brief  Structure for spatial layer configuration
*/
typedef struct {
  int	iVideoWidth;           ///< width of picture in luminance samples of a layer
  int	iVideoHeight;          ///< height of picture in luminance samples of a layer
  float	fFrameRate;            ///< frame rate specified for a layer
  int	iSpatialBitrate;       ///< target bitrate for a spatial layer
  int   iMaxSpatialBitrate;    ///< maximum  bitrate for a spatial layer
  EProfileIdc  uiProfileIdc;   ///< value of profile IDC (PRO_UNKNOWN for auto-detection)
  ELevelIdc    uiLevelIdc;     ///< value of profile IDC (0 for auto-detection)
  int          iDLayerQp;      ///< value of level IDC (0 for auto-detection)

  SSliceConfig sSliceCfg;      ///< slice configuration for a layer
} SSpatialLayerConfig;

/**
* @brief Encoder usage type
*/
typedef enum {
  CAMERA_VIDEO_REAL_TIME,      ///< camera video signal
  SCREEN_CONTENT_REAL_TIME     ///< screen content signal
} EUsageType;

/**
* @brief Enumulate the complexity mode
*/
typedef enum {
  LOW_COMPLEXITY,             ///< the lowest compleixty,the fastest speed,
  MEDIUM_COMPLEXITY,          ///< medium complexity, medium speed,medium quality
  HIGH_COMPLEXITY             ///< high complexity, lowest speed, high quality
} ECOMPLEXITY_MODE;

// TODO:  Refine the parameters definition.
/**
* @brief SVC Encoding Parameters
*/
typedef struct TagEncParamBase {
  EUsageType
  iUsageType;                 ///< application type;1.CAMERA_VIDEO_REAL_TIME:camera video signal; 2.SCREEN_CONTENT_REAL_TIME:screen content signal;

  int       iPicWidth;        ///< width of picture in luminance samples (the maximum of all layers if multiple spatial layers presents)
  int       iPicHeight;       ///< height of picture in luminance samples((the maximum of all layers if multiple spatial layers presents)
  int       iTargetBitrate;	  ///< target bitrate desired
  RC_MODES  iRCMode;          ///< rate control mode
  float     fMaxFrameRate;    ///< maximal input frame rate

} SEncParamBase, *PEncParamBase;

/**
* @brief SVC Encoding Parameters extention
*/
typedef struct TagEncParamExt {
  EUsageType
  iUsageType;                          ///< application type;1.CAMERA_VIDEO_REAL_TIME:camera video signal;2.SCREEN_CONTENT_REAL_TIME:screen content signal;

  int       iPicWidth;                 ///< width of picture in luminance samples (the maximum of all layers if multiple spatial layers presents)
  int       iPicHeight;			       ///< height of picture in luminance samples((the maximum of all layers if multiple spatial layers presents)
  int       iTargetBitrate;            ///< target bitrate desired
  RC_MODES  iRCMode;                   ///< rate control mode
  float     fMaxFrameRate;             ///< maximal input frame rate

  int       iTemporalLayerNum;         ///< temporal layer number, max temporal layer = 4
  int       iSpatialLayerNum;          ///< spatial layer number,1<= iSpatialLayerNum <= MAX_SPATIAL_LAYER_NUM, MAX_SPATIAL_LAYER_NUM = 4
  SSpatialLayerConfig sSpatialLayers[MAX_SPATIAL_LAYER_NUM];

  ECOMPLEXITY_MODE iComplexityMode;
  unsigned int      uiIntraPeriod;     ///< period of Intra frame
  int               iNumRefFrame;      ///< number of reference frame used
  bool    bEnableSpsPpsIdAddition;     ///< false:not adjust ID in SPS/PPS; true: adjust ID in SPS/PPS
  bool    bPrefixNalAddingCtrl;        ///< false:not use Prefix NAL; true: use Prefix NAL
  bool    bEnableSSEI;                 ///< false:not use SSEI; true: use SSEI
  int     iPaddingFlag;                ///< 0:disable padding;1:padding
  int     iEntropyCodingModeFlag;      ///< 0:CAVLC  1:CABAC.

  /* rc control */
  bool    bEnableFrameSkip;            ///< False: don't skip frame even if VBV buffer overflow.True: allow skipping frames to keep the bitrate within limits
  int     iMaxBitrate;                 ///< the maximum bitrate
  int     iMaxQp;                      ///< the maximum QP encoder supports
  int     iMinQp;                      ///< the minmum QP encoder supports
  unsigned int uiMaxNalSize;           ///< the maximum NAL size.  This value should be not 0 for dynamic slice mode

  /*LTR settings*/
  bool     bEnableLongTermReference;   ///< 1: on, 0: off
  int      iLTRRefNum;                 ///< the number of LTR(long term reference),TODO: not supported to set it arbitrary yet
  unsigned int      iLtrMarkPeriod;    ///< the LTR marked period that is used in feedback.
  /* multi-thread settings*/
  unsigned short
  iMultipleThreadIdc;                  ///< 1 # 0: auto(dynamic imp. internal encoder); 1: multiple threads imp. disabled; lager than 1: count number of threads;

  /* Deblocking loop filter */
  int       iLoopFilterDisableIdc;     ///< 0: on, 1: off, 2: on except for slice boundaries
  int       iLoopFilterAlphaC0Offset;  ///< AlphaOffset: valid range [-6, 6], default 0
  int       iLoopFilterBetaOffset;	   ///< BetaOffset:	valid range [-6, 6], default 0
  /*pre-processing feature*/
  bool    bEnableDenoise;              ///< denoise control
  bool    bEnableBackgroundDetection;  ///< background detection control //VAA_BACKGROUND_DETECTION //BGD cmd
  bool    bEnableAdaptiveQuant;        ///< adaptive quantization control
  bool    bEnableFrameCroppingFlag;    ///< enable frame cropping flag: TRUE always in application
  bool    bEnableSceneChangeDetect;

  bool    bIsLosslessLink;            ///<  LTR advanced setting
} SEncParamExt;

/**
* @brief Define a new struct to show the property of video bitstream.
*/
typedef struct {
  unsigned int          size;          ///< size of the struct
  VIDEO_BITSTREAM_TYPE  eVideoBsType;  ///< video stream type (AVC/SVC)
} SVideoProperty;

/**
* @brief SVC Decoding Parameters, reserved here and potential applicable in the future
*/
typedef struct TagSVCDecodingParam {
  char*		pFileNameRestructed;       ///< file name of reconstructed frame used for PSNR calculation based debug

  EVideoFormatType eOutputColorFormat; ///< color space format to be outputed, EVideoFormatType specified in codec_def.h
  unsigned int	uiCpuLoad;             ///< CPU load
  unsigned char	uiTargetDqLayer;       ///< setting target dq layer id

  ERROR_CON_IDC eEcActiveIdc;          ///< whether active error concealment feature in decoder
  bool bParseOnly;                     ///< decoder for parse only, no reconstruction. When it is true, SPS/PPS size should not exceed SPS_PPS_BS_SIZE (128). Otherwise, it will return error info

  SVideoProperty   sVideoProperty;    ///< video stream property
} SDecodingParam, *PDecodingParam;

/**
* @brief Bitstream inforamtion of a layer being encoded
*/
typedef struct {
  unsigned char uiTemporalId;
  unsigned char uiSpatialId;
  unsigned char uiQualityId;

  unsigned char uiLayerType;

  int   iNalCount;              ///< count number of NAL coded already
  int*  pNalLengthInByte;	    ///< length of NAL size in byte from 0 to iNalCount-1
  unsigned char*  pBsBuf;		///< buffer of bitstream contained
} SLayerBSInfo, *PLayerBSInfo;

/**
* @brief Frame bit stream info
*/
typedef struct {
  int		iTemporalId;	   ///< temporal ID

  /**
  * The sub sequence layers are ordered hierarchically based on their dependency on each other so that any picture in a layer shall not be
  * predicted from any picture on any higher layer.
  */
  int	    iSubSeqId;         ///< refer to D.2.11 Sub-sequence information SEI message semantics

  int		iLayerNum;
  SLayerBSInfo	sLayerInfo[MAX_LAYER_NUM_OF_FRAME];

  EVideoFrameType eFrameType;
  int   iFrameSizeInBytes;
  long long uiTimeStamp;
} SFrameBSInfo, *PFrameBSInfo;

/**
*  @brief Structure for source picture
*/
typedef struct Source_Picture_s {
  int       iColorFormat;	       ///< color space type
  int       iStride[4];		       ///< stride for each plane pData
  unsigned char*  pData[4];		   ///< plane pData
  int       iPicWidth;             ///< luma picture width in x coordinate
  int       iPicHeight;            ///< luma picture height in y coordinate
  long long uiTimeStamp;
} SSourcePicture;
/**
* @brief Structure for bit rate info
*/
typedef struct TagBitrateInfo {
  LAYER_NUM iLayer;
  int iBitrate;                    ///< the maximum bitrate
} SBitrateInfo;

/**
* @brief Structure for dump layer info
*/
typedef struct TagDumpLayer {
  int iLayer;
  char* pFileName;
} SDumpLayer;

/**
* @brief Structure for profile info in layer
*
*/
typedef struct TagProfileInfo {
  int iLayer;
  EProfileIdc uiProfileIdc;        ///< the profile info
} SProfileInfo;

/**
* @brief  Structure for level info in layer
*
*/
typedef struct TagLevelInfo {
  int iLayer;
  ELevelIdc uiLevelIdc;            ///< the level info
} SLevelInfo;
/**
* @brief Structure for dilivery status
*
*/
typedef struct TagDeliveryStatus {
  bool bDeliveryFlag;              ///< 0: the previous frame isn't delivered,1: the previous frame is delivered
  int iDropFrameType;              ///< the frame type that is dropped; reserved
  int iDropFrameSize;              ///< the frame size that is dropped; reserved
} SDeliveryStatus;

/**
* @brief The capability of decoder, for SDP negotiation
*/
typedef struct TagDecoderCapability {
  int iProfileIdc;     ///< profile_idc
  int iProfileIop;     ///< profile-iop
  int iLevelIdc;       ///< level_idc
  int iMaxMbps;        ///< max-mbps
  int iMaxFs;          ///< max-fs
  int iMaxCpb;         ///< max-cpb
  int iMaxDpb;         ///< max-dpb
  int iMaxBr;          ///< max-br
  bool bRedPicCap;     ///< redundant-pic-cap
} SDecoderCapability;

/**
* @brief to do
*/
typedef struct TagParserBsInfo {
  int iNalNum;                                 ///< total NAL number in current AU
  int iNalLenInByte [MAX_NAL_UNITS_IN_LAYER];  ///< each nal length
  unsigned char* pDstBuff;                     ///< outputted dst buffer for parsed bitstream
  int iSpsWidthInPixel;                        ///< required SPS width info
  int iSpsHeightInPixel;                       ///< required SPS height info
  unsigned long long uiInBsTimeStamp;               ///< input BS timestamp
  unsigned long long uiOutBsTimeStamp;             ///< output BS timestamp
} SParserBsInfo, *PParserBsInfo;

/**
* @brief Structure for encoder statistics
*/
typedef struct TagVideoEncoderStatistics {
  unsigned int uiWidth;                        ///< the width of encoded frame
  unsigned int uiHeight;                       ///< the height of encoded frame
  //following standard, will be 16x aligned, if there are multiple spatial, this is of the highest
  float fAverageFrameSpeedInMs;                ///< average_Encoding_Time

  // rate control related
  float fAverageFrameRate;                     ///< the average frame rate in, calculate since encoding starts, supposed that the input timestamp is in unit of ms
  float fLatestFrameRate;                      ///< the frame rate in, in the last second, supposed that the input timestamp is in unit of ms (? useful for checking BR, but is it easy to calculate?
  unsigned int uiBitRate;                      ///< sendrate in Bits per second, calculated within the set time-window

  unsigned int uiInputFrameCount;              ///< number of frames
  unsigned int uiSkippedFrameCount;            ///< number of frames

  unsigned int uiResolutionChangeTimes;        ///< uiResolutionChangeTimes
  unsigned int uiIDRReqNum;                    ///< number of IDR requests
  unsigned int uiIDRSentNum;                   ///< number of actual IDRs sent
  unsigned int uiLTRSentNum;                   ///< number of LTR sent/marked
} SEncoderStatistics; // in building, coming soon

/**
* @brief  Structure for decoder statistics
*/
typedef struct TagVideoDecoderStatistics {
  unsigned int uiWidth;	                       ///< the width of encode/decode frame
  unsigned int uiHeight;                       ///< the height of encode/decode frame
  float fAverageFrameSpeedInMs;                ///< average_Decoding_Time
  unsigned int uiDecodedFrameCount;            ///< number of frames
  unsigned int uiResolutionChangeTimes;        ///< uiResolutionChangeTimes
  unsigned int uiIDRRecvNum;	               ///< number of actual IDR received
  //EC on related
  unsigned int
  uiAvgEcRatio;                                ///< when EC is on, the average ratio of correct or EC areas, can be an indicator of reconstruction quality
  unsigned int uiEcIDRNum;                     ///< number of actual unintegrity IDR or not received but eced
  unsigned int uiEcFrameNum;                   ///<
  unsigned int uiIDRLostNum;                   ///< decoder detect the number of lost IDR
} SDecoderStatistics; // in building, coming soon

#endif//WELS_VIDEO_CODEC_APPLICATION_DEFINITION_H__