/* stores info about system stream and sends data to audio/video Copyright (C) 2000 Martin Vogt This program is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation. For more information look at the file COPYRIGHT in this package */ #ifndef __MPEGSYSTEMHEADER_H #define __MPEGSYSTEMHEADER_H #define _PACKET_SYSLAYER 1 #define _PACKET_NO_SYSLAYER 0 #define _PACKET_UNKNOWN_LAYER -1 #define _PACKET_HEADER_SIZE 8 // note: packetid 1 & 2 are normalized to _PAKET_ID_AUDIO // see packet.cpp #define _PAKET_ID_AUDIO_1 ((unsigned char) 0xc0) #define _PAKET_ID_AUDIO_2 ((unsigned char) 0xd0) #define _PAKET_ID_VIDEO ((unsigned char) 0xe0) #define _PAKET_ID_NUKE ((unsigned char) 0x0) #define _STD_SYSTEM_CLOCK_FREQ (unsigned long)90000 #define _MUX_RATE_SCALE_FACTOR 50 #define _MAX_STREAMS 8 #define _NOT_PACKET_ID ((unsigned char) 0xff) #define _KILL_BUFFER ((unsigned char) 0xfe) #define _STD_AUDIO_STREAM_ID ((unsigned char) 0xb8) #define _STD_VIDEO_STREAM_ID ((unsigned char) 0xb9) #define _MIN_STREAM_ID_ID ((unsigned char) 0xbc) #define _RESERVED_STREAM_ID ((unsigned char) 0xbc) #define _PRIVATE_STREAM_1_ID ((unsigned char) 0xbd) #define _PADDING_STREAM_ID ((unsigned char) 0xbe) #define _PRIVATE_STREAM_2_ID ((unsigned char) 0xbf) #define _ECM_STREAM_ID ((unsigned char) 0xf0) #define _EMM_STREAM_ID ((unsigned char) 0xf1) #define _PROGRAM_STREAM_DIRECTORY_ID ((unsigned char) 0xff) #define _DSMCC_STREAM_ID ((unsigned char) 0xf2) #define _ITUTRECH222TYPEE_STREAM_ID ((unsigned char) 0xf8) #define _SUBSTREAM_AC3_ID ((unsigned char) 0x80) #define _SUBSTREAM_LPCM_ID ((unsigned char) 0xA0) #define _SUBSTREAM_SUBPIC_ID ((unsigned char) 0x20) /* Silly Constants.... */ #define _PACK_START_CODE ((unsigned int)0x000001ba) #define _SYSTEM_HEADER_START_CODE ((unsigned int)0x000001bb) #define _PACKET_START_CODE_MASK ((unsigned int)0xffffff00) #define _PACKET_START_CODE_PREFIX ((unsigned int)0x00000100) #define _ISO_11172_END_CODE ((unsigned int)0x000001b9) #define _SEQ_START_CODE 0x000001b3 // More constants for TS streams #define NULL_PID 8191 #define INVALID_PID ((unsigned int)(-1)) #define INVALID_PROGRAM ((unsigned int)(-1)) #define INVALID_CC ((unsigned int)(-1)) #define ISO_11172_VIDEO 1 #define ISO_13818_VIDEO 2 #define ISO_11172_AUDIO 3 #define ISO_13818_AUDIO 4 #define ISO_13818_PRIVATE 5 #define ISO_13818_PES_PRIVATE 6 #define ISO_13522_MHEG 7 #define ISO_13818_DSMCC 8 #define ISO_13818_TYPE_A 9 #define ISO_13818_TYPE_B 10 #define ISO_13818_TYPE_C 11 #define ISO_13818_TYPE_D 12 #define ISO_13818_TYPE_E 13 #define ISO_13818_AUX 14 struct MapPidStream_s { // if this structure "is Valid" (association pid->tsType is ok) int isValid; // a not nearer defined int unsigned int pid; // the type for the pid defined in Transportstream unsigned int tsType; // runtime associated "fake" type for PS stream unsigned int psType; // outstanding bytes for PES packet unsigned int pesPacketSize; }; typedef MapPidStream_s MapPidStream; // More usefull things #define FLOAT_0x10000 (double)((unsigned long)1 << 16) // MPEG2 PACK HEADER // SCRbase and SCRext // 32 .......................................0 9.........0 // [PACK_START_CODE][01---1--][--------][-----1--][--------][-----1--][-------1 #define ui64 unsigned long #define ui32 unsigned int #define i64 long #define i32 int #define MPEG1_CLK_REF (i64)90000 #define MPEG2_CLK_REF (i64)27000000 #define ZERO (i64)0 #define GET_SCRBASE(buf) ( ((ui64)buf[4]&0xF8)>>3 | \ (ui64)buf[3]<<5 | \ ((ui64)buf[2]&0x03)<<13 | \ ((ui64)buf[2]&0xF8)<<12 | \ (ui64)buf[1]<<20 | \ ((ui64)buf[0]&0x03)<<28 | \ (ui64)buf[0]&0x38 <<27 ) #define GET_SCREXT(buf) ( ((ui64)buf[5]&0xFE)>>1 | \ ((ui64)buf[4]&0x03)<<7 ) // muxrate // 22 ......................0 stl // ... [--------][--------][------11][rrrrr---] #define GET_MPEG2MUXRATE(buf) ( (ui32)buf[6]<<14 | \ ((ui32)buf[7])<<6 | \ ((ui32)buf[8]&0x03)>>2) \ #define GET_MPEG2STUFFING(buf) ((buf[9]&0x07)) // MPEG1 PACK HEADER // SCR muxrate // 32........................................0 22...... //[PACK_START_CODE][0010---1][--------][-------1][--------][-------1][1-------] #define GET_SCR(buf) ( ((ui64)buf[4]&0xFE) >>1 | \ ((ui64)buf[3]) <<7 | \ ((ui64)buf[2]&0xFE) <<14 | \ ((ui64)buf[1]) <<22 | \ ((ui64)buf[0]&0x0E) <<29 ) #define GET_MPEG1_PTS(x) (GET_SCR(x)) //they follow the same pattern #define GET_MPEG1_MUXRATE(x) ( ((ui32)x[7]&0xFE) >>1 | \ ((ui32)x[6]) <<7 | \ ((ui32)x[5]&0x7F) <<15 ) #define GET_MPEG2_PTS_FLAGS(buf) ( ((ui8)buf[3]&0xC0)>>6 ) // MPEG2 PES packet (optional parameters) // PTS // 32........................................0 // [PACKET_START_CODE][001x---1][--------][-------1][--------][-------1] #define GET_MPEG2_PTS(buf) GET_MPEG1_PTS(buf) #include #include class MpegSystemHeader { int lPTSFlag; double scrTimeStamp; double ptsTimeStamp; double dtsTimeStamp; int layer; unsigned int header; int lHasPSHeader; int lmpeg2; int packetID; int packetLen; int pesPacketLen; int tsPacketLen; unsigned long rate; int stdBufferScale; unsigned long stdBufferSize; /* This are bitmaps, if bit x is a 1 the stream number x is available */ unsigned long availableAudioLayers; unsigned long availableVideoLayers; int audioLayerSelect; int videoLayerSelect; // // MPEG2 Header Info [START] // int lOriginal; int lCopyRight; int lDataAlignmentIndicator; int lPesPriority; int lEncrypted; int startCodePrefix; int lPTSDTSFlag; int lESCR; int lESRateFlag; int lDMSTRICKFLAG; int lADDITIONAL_COPY_FLAG; int lPES_CRC_FLAG; int lPES_EXT_FLAG; int nPES_HEADER_DATA_LENGTH; // EXT FILED [START] int lPrivateDataFlag; int lPackHeaderFieldFlag; int lSequenceCounterFlag; int lSTDBufferFlag; int lPES_EXT_FLAG_2; int nPES_EXT_FIELD_LENGTH; // EXT FILED [END] int subStreamID; // // MPEG2 Header Info [END] // // // Transport Stream Header [START] // int lHasTSHeader; unsigned int sync_byte; unsigned int transport_error_indicator; unsigned int payload_unit_start_indicator; unsigned int transport_priority; unsigned int pid; unsigned int transport_scrambling_control; unsigned int adaption_field_control; unsigned int continuity_counter; unsigned int programs; unsigned int programNumber; unsigned int pmtPID; MapPidStream** mapPidStreamArray; int currentPos; // // Transport Stream Header [END] // public: MpegSystemHeader(); ~MpegSystemHeader(); void setHeader(unsigned int header); unsigned int getHeader(); int hasRAWHeader(); int getPTSFlag(); void setPTSFlag(int lPTSFlag); double getSCRTimeStamp(); double getPTSTimeStamp(); double getDTSTimeStamp(); void setSCRTimeStamp(double timeStamp); void setPTSTimeStamp(double ptsTimeStamp); void setDTSTimeStamp(double dtsTimeStamp); // returns 1 if it is a syslayer 0 if non syslayer -1 if unknown int getLayer(); void setLayer(int layer); int hasPSHeader(); // // MPEG2 Stuff [START] // int getMPEG2(); void setMPEG2(int lmpeg2); // 1 Byte [Start] int getOriginalOrCopy(); void setOriginalOrCopy(int lOriginal); int getCopyRight(); void setCopyRight(int lCopyRight); int getDataAlignmentIndicator(); void setDataAlignmentIndicator(int lDataAlignmentIndicator); int getPesPriority(); void setPesPriority(int lPesPriority); int getEncrypted(); void setEncrypted(int lEncrypted); int getStartCodePrefix(); void setStartCodePrefix(int startCodePrefix); // 1. Byte [End] int getPTSDTSFlag(); void setPTSDTSFlag(int lPTSDTSFlag); int getESCRFlag(); void setESCRFlag(int lESCR); int getES_RATE_Flag(); void setES_RATE_Flag(int lESRateFlag); int getDMSTRICKFLAG(); void setDMSTRICKFLAG(int lDMSTRICKFLAG); int getADDITIONAL_COPY_FLAG(); void setADDITIONAL_COPY_FLAG(int lADDITIONAL_COPY_FLAG); int getPES_CRC_FLAG(); void setPES_CRC_FLAG(int lPES_CRC_FLAG); int getPES_EXT_FLAG(); void setPES_EXT_FLAG(int lPES_EXT_FLAG); // // PES EXTENSION [START] // int getPrivateDataFlag(); void setPrivateDataFlag(int lPrivateDataFlag); int getPackHeaderFieldFlag(); void setPackHeaderFieldFlag(int lPackHeaderFieldFlag); int getSequenceCounterFlag(); void setSequenceCounterFlag(int lSequenceCounterFlag); int getSTDBufferFlag(); void setSTDBufferFlag(int lSTDBufferFlag); int getPES_EXT_FLAG_2(); void setPES_EXT_FLAG_2(int lPES_EXT_FLAG_2); int getPES_EXT_FIELD_LENGTH(); void setPES_EXT_FIELD_LENGTH(int nPES_EXT_FIELD_LENGTH); // // PES EXTENSION [END] // int getPES_HEADER_DATA_LENGTH(); void setPES_HEADER_DATA_LENGTH(int nPES_HEADER_DATA_LENGTH); int getSubStreamID(); void setSubStreamID(int subStreamID); // // MPEG2 Stuff [END] // // // Transport Stream Header [START] // // returns true if it is ts header & sets the TS // values in this class. int hasTSHeader(); unsigned int getSync_byte(); unsigned int getTransport_error_indicator(); unsigned int getPayload_unit_start_indicator(); unsigned int getTransport_priority(); unsigned int getPid(); unsigned int getTransport_scrambling_control(); unsigned int getAdaption_field_control(); unsigned int getContinuity_counter(); unsigned int getPrograms(); void setPrograms(unsigned int programs); unsigned int getProgramNumber(); void setProgramNumber(unsigned int programNumber); unsigned int getPMTPID(); void setPMTPID(unsigned int pmtPID); // // manage different pids and their tsTypes and the fake psTypes // MapPidStream* lookup(unsigned int pid); void insert(unsigned int pid,unsigned int tsType, MpegSystemHeader* mpegHeader); void printTSHeader(); void printProgramInfo(); void printMap(MapPidStream* mapPidStream); // // Transport Stream Header [END] // void addAvailableLayer(int streamID); void resetAvailableLayers(); int getAudioLayerSelect(); void setAudioLayerSelect(int layer); int getVideoLayerSelect(); void setVideoLayerSelect(int layer); int getPacketID(); void setPacketID(int packetID); // data which can be safley read and belongs to packetID int getPacketLen(); void setPacketLen(int packetLen); // length of PES packet (normally == getPacketLent) int getPESPacketLen(); void setPESPacketLen(int packetLen); // rest lenght of TS packet. int getTSPacketLen(); void setTSPacketLen(int packetLen); int getRate(); void setRate(int rate); int getStdBufferScale(); void setStdBufferScale(int stdBufferScale); unsigned long getStdBufferSize(); void setStdBufferSize(unsigned long stdBufferSize); void print(); // return true is system header in some kind (TS or 1ba/1bb) static int isSystemHeader(unsigned int header); private: void setTSHeader(unsigned int header); void setPSHeader(unsigned int header); }; #endif