diff options
Diffstat (limited to 'mpeglib/lib/mpegplay/mpegSystemHeader.h')
| -rw-r--r-- | mpeglib/lib/mpegplay/mpegSystemHeader.h | 484 |
1 files changed, 484 insertions, 0 deletions
diff --git a/mpeglib/lib/mpegplay/mpegSystemHeader.h b/mpeglib/lib/mpegplay/mpegSystemHeader.h new file mode 100644 index 00000000..abad3794 --- /dev/null +++ b/mpeglib/lib/mpegplay/mpegSystemHeader.h @@ -0,0 +1,484 @@ +/* + 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 useful 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 <stdio.h> + + +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 + + + |