H.264编码解码器源码(c语言版本)

								/*!				 ************************************************************************				 *  \file				 *     sei.h				 *  \brief				 *     definitions for Supplemental Enhanced Information				 *  \author(s)				 *      - Dong Tian                             				 *      - TBD				 *				 * ************************************************************************				 */								#ifndef SEI_H				#define SEI_H								//! definition of SEI payload type				typedef enum {				  SEI_ZERO,        //!< 0 is undefined, useless				  SEI_TEMPORAL_REF,				  SEI_CLOCK_TIMESTAMP,				  SEI_PANSCAN_RECT,				  SEI_BUFFERING_PERIOD,				  SEI_HRD_PICTURE,				  SEI_FILLER_PAYLOAD,				  SEI_USER_DATA_REGISTERED_ITU_T_T35,				  SEI_USER_DATA_UNREGISTERED,				  SEI_RANDOM_ACCESS_POINT,				  SEI_REF_PIC_BUFFER_MANAGEMENT_REPETITION,				  SEI_SPARE_PICTURE,				  SEI_SCENE_INFORMATION,				  SEI_SUBSEQ_INFORMATION,				  SEI_SUBSEQ_LAYER_CHARACTERISTICS,				  SEI_SUBSEQ_CHARACTERISTICS,				  SEI_MAX_ELEMENTS  //!< number of maximum syntax elements				} SEI_type;								#define MAX_FN 256								#define AGGREGATION_PACKET_TYPE 4				#define SEI_PACKET_TYPE 5  // Tian Dong: See VCEG-N72, it need updates								#define NORMAL_SEI 0				#define AGGREGATION_SEI 1								//! SEI structure				typedef struct				{				  Boolean available;				  int payloadSize;				  unsigned char subPacketType;				  byte* data;				} sei_struct;								//!< sei_message[0]: this struct is to store the sei message packtized independently 				//!< sei_message[1]: this struct is to store the sei message packtized together with slice data				extern sei_struct sei_message[2];								void InitSEIMessages();				void CloseSEIMessages();				Boolean HaveAggregationSEI();				void write_sei_message(int id, byte* payload, int payload_size, int payload_type);				void finalize_sei_message(int id);				void clear_sei_message(int id);				void AppendTmpbits2Buf( Bitstream* dest, Bitstream* source );								void PrepareAggregationSEIMessage();												//! Spare Picture				typedef struct				{				  int target_frame_num;				  int num_spare_pics;				  int payloadSize;				  Bitstream* data;				} spare_picture_struct;								extern Boolean seiHasSparePicture;				//extern Boolean sei_has_sp;				extern spare_picture_struct seiSparePicturePayload;								void InitSparePicture();				void CloseSparePicture();				void CalculateSparePicture();				void ComposeSparePictureMessage(int delta_spare_frame_num, int ref_area_indicator, Bitstream *tmpBitstream);				Boolean CompressSpareMBMap(unsigned char **map_sp, Bitstream *bitstream);				void FinalizeSpareMBMap();								//! Subseq Information				typedef struct				{				  int subseq_layer_num;				  int subseq_id;				  unsigned int last_picture_flag;				  unsigned int stored_frame_cnt;								  int payloadSize;				  Bitstream* data;				} subseq_information_struct;								extern Boolean seiHasSubseqInfo;				extern subseq_information_struct seiSubseqInfo[MAX_LAYER_NUMBER];								void InitSubseqInfo(int currLayer);				void UpdateSubseqInfo(int currLayer);				void FinalizeSubseqInfo(int currLayer);				void ClearSubseqInfoPayload(int currLayer);				void CloseSubseqInfo(int currLayer);								//! Subseq Layer Information				typedef struct				{				  unsigned short bit_rate[MAX_LAYER_NUMBER];				  unsigned short frame_rate[MAX_LAYER_NUMBER];				  byte data[4*MAX_LAYER_NUMBER];				  int layer_number;				  int payloadSize;				} subseq_layer_information_struct;								extern Boolean seiHasSubseqLayerInfo;				extern subseq_layer_information_struct seiSubseqLayerInfo;								void InitSubseqLayerInfo();				void CloseSubseqLayerInfo();				void FinalizeSubseqLayerInfo();								//! Subseq Characteristics				typedef struct				{				  int subseq_layer_num;				  int subseq_id;				  int duration_flag;				  unsigned int subseq_duration;				  unsigned int average_rate_flag;				  unsigned int average_bit_rate;				  unsigned int average_frame_rate;				  int num_referenced_subseqs;				  int ref_subseq_layer_num[MAX_DEPENDENT_SUBSEQ];				  int ref_subseq_id[MAX_DEPENDENT_SUBSEQ];								  Bitstream* data;				  int payloadSize;				} subseq_char_information_struct;								extern Boolean seiHasSubseqChar;				extern subseq_char_information_struct seiSubseqChar;								void InitSubseqChar();				void ClearSubseqCharPayload();				void UpdateSubseqChar();				void FinalizeSubseqChar();				void CloseSubseqChar();												//! JVT-D099 Scene information SEI message				typedef struct				{				  int scene_id;				  int scene_transition_type;				  int second_scene_id;								  Bitstream* data;				  int payloadSize;				} scene_information_struct;								extern Boolean seiHasSceneInformation;				extern scene_information_struct seiSceneInformation;								void InitSceneInformation();				void CloseSceneInformation();				void UpdateSceneInformation(Boolean HasSceneInformation, int sceneID, int sceneTransType, int secondSceneID);				void FinalizeSceneInformation();				//! End JVT-D099 Scene information SEI message								//! Shankar Regunathan Oct 2002				//! PanScanRect Information				typedef struct				{				  int pan_scan_rect_id; 				  int pan_scan_rect_left_offset;				  int pan_scan_rect_right_offset;				  int pan_scan_rect_top_offset;				  int pan_scan_rect_bottom_offset;								  Bitstream *data;				  int payloadSize;				} panscanrect_information_struct;								extern Boolean seiHasPanScanRectInfo;				extern panscanrect_information_struct seiPanScanRectInfo;								void InitPanScanRectInfo();				void ClearPanScanRectInfoPayload();				void UpdatePanScanRectInfo();				void FinalizePanScanRectInfo();				void ClosePanScanRectInfo();								//! User_data_unregistered Information				typedef struct				{				  char *byte;				  int total_byte;				  Bitstream *data;				  int payloadSize;				} user_data_unregistered_information_struct;				Boolean seiHasUser_data_unregistered_info;				user_data_unregistered_information_struct seiUser_data_unregistered;								void InitUser_data_unregistered();				void ClearUser_data_unregistered();				void UpdateUser_data_unregistered();				void FinalizeUser_data_unregistered();				void CloseUser_data_unregistered();								//! User_data_registered_itu_t_t35 Information				typedef struct				{				  char *byte;				  int total_byte;				  int itu_t_t35_country_code;				  int itu_t_t35_country_code_extension_byte;				  Bitstream *data;				  int payloadSize;				} user_data_registered_itu_t_t35_information_struct;				Boolean seiHasUser_data_registered_itu_t_t35_info;				user_data_registered_itu_t_t35_information_struct seiUser_data_registered_itu_t_t35;								void InitUser_data_registered_itu_t_t35();				void ClearUser_data_registered_itu_t_t35();				void UpdateUser_data_registered_itu_t_t35();				void FinalizeUser_data_registered_itu_t_t35();				void CloseUser_data_registered_itu_t_t35();								//! RandomAccess Information				typedef struct				{				  unsigned char recovery_point_flag;				  unsigned char exact_match_flag;				  unsigned char broken_link_flag;								  Bitstream *data;				  int payloadSize;				} randomaccess_information_struct;				Boolean seiHasRandomAccess_info;				randomaccess_information_struct seiRandomAccess;								void InitRandomAccess();				void ClearRandomAccess();				void UpdateRandomAccess();				void FinalizeRandomAccess();				void CloseRandomAccess();								#endif