liveMedia/QuickTimeFileSink.cpp File Reference

#include "QuickTimeFileSink.hh"
#include "QuickTimeGenericRTPSource.hh"
#include "GroupsockHelper.hh"
#include "OutputFile.hh"
#include "H263plusVideoRTPSource.hh"
#include "MPEG4GenericRTPSource.hh"
#include "MPEG4LATMAudioRTPSource.hh"
#include "Base64.hh"
#include <ctype.h>

Include dependency graph for QuickTimeFileSink.cpp:

Go to the source code of this file.

Data Structures

class ChunkDescriptor

class SubsessionBuffer

class Count64

class SubsessionIOState

struct SubsessionIOState::hinf

Defines

#define fourChar(x, y, z, w)   ( ((x)<<24)|((y)<<16)|((z)<<8)|(w) )

#define addAtom(name)

#define addAtomEnd

#define addEdit1(duration, trackPosition)

#define addEdit(duration)   addEdit1((duration),editTrackPosition)

#define addEmptyEdit(duration)   addEdit1((duration),(~0))

Functions

static Boolean timevalGE (struct timeval const &tv1, struct timeval const &tv2)

addAtom (ftyp)

addAtom (moov)

if (fGenerateMP4Format)

while ((subsession=iter.next())!=NULL)

iter reset ()

addAtom (mvhd)

addAtom (iods)

addAtom (trak)

if (fCurrentIOState->fHeadChunk!=NULL &&(fSyncStreams||fCurrentIOState->isHintTrack()))

if (fCurrentIOState->isHintTrack()) size+ = addAtom_udta()

addAtom (tkhd)

if (fCurrentIOState->fQTEnableTrack)

if (strcmp(fCurrentIOState->fOurSubsession.mediumName(),"video")==0)

addAtom (edts)

addAtom (elst)

while (chunk!=NULL)

if (trackDurationOfEdit > 0.0) addEdit(trackDurationOfEdit)

setWord (numEntriesPosition, numEdits)

if (totalDurationOfEdits > fCurrentIOState->fQTDurationM)

addAtom (tref)

addAtom (hint)

addAtom (mdia)

addAtom (mdhd)

addAtom (hdlr)

addAtom (minf)

addAtom (smhd)

addAtom (vmhd)

addAtom (gmhd)

addAtom (gmin)

Variables

size = add4ByteString("mp42")

size = addWord(0x00000000)

size = add4ByteString("mp42")

size = add4ByteString("isom")

addAtomEnd

size = addAtom_mvhd()

MediaSubsessionIterator iter (fInputSession)

MediaSubsession * subsession

addAtomEnd

size = addWord(0x00000000)

size = addWord(fAppleCreationTime)

size = addWord(fAppleCreationTime)

size = addWord(movieTimeScale())

unsigned const duration = fMaxTrackDurationM

fMVHD_durationPosn = ftell(fOutFid)

size = addWord(duration)

size = addWord(0x00010000)

size = addWord(0x01000000)

size = addZeroWords(2)

size = addWord(0x00010000)

size = addZeroWords(3)

size = addWord(0x00010000)

size = addZeroWords(3)

size = addWord(0x40000000)

size = addZeroWords(6)

size = addWord(SubsessionIOState::fCurrentTrackNumber+1)

addAtomEnd

size = addWord(0x00000000)

size = addWord(0x10808080)

size = addWord(0x07004FFF)

size = addWord(0xFF0FFFFF)

addAtomEnd

size = addAtom_tkhd()

size = addAtom_mdia()

addAtomEnd

size = addWord(fAppleCreationTime)

size = addWord(fCurrentIOState->fTrackID)

size = addWord(0x00000000)

unsigned const duration = fCurrentIOState->fQTDurationM

fCurrentIOState fTKHD_durationPosn = ftell(fOutFid)

size = addWord(duration)

size = addZeroWords(3)

size = addWord(0x01000000)

size = addWord(0x00010000)

size = addZeroWords(3)

size = addWord(0x00010000)

size = addZeroWords(3)

size = addWord(0x40000000)

size = addAtom_elst()

addAtomEnd

size = addWord(0x00000000)

unsigned numEntriesPosition = ftell(fOutFid)

size = addWord(0)

unsigned numEdits = 0

unsigned totalDurationOfEdits = 0

double const syncThreshold = 0.1

timeval editStartTime = fFirstDataTime

unsigned editTrackPosition = 0

unsigned currentTrackPosition = 0

double trackDurationOfEdit = 0.0

unsigned chunkDuration = 0

ChunkDescriptor * chunk = fCurrentIOState->fHeadChunk

trackDurationOfEdit = (double)chunkDuration/fCurrentIOState->fQTTimeScale

addAtomEnd

size = addAtom_hint()

addAtomEnd

SubsessionIOState * hintedTrack = fCurrentIOState->fTrackHintedByUs

size = addWord(hintedTrack->fTrackID)

addAtomEnd

size = addAtom_mdhd()

size = addAtom_hdlr()

size = addAtom_minf()

addAtomEnd

size = addWord(0x00000000)

size = addWord(fAppleCreationTime)

size = addWord(fAppleCreationTime)

unsigned const timeScale = fCurrentIOState->fQTTimeScale

size = addWord(timeScale)

unsigned const duration = fCurrentIOState->fQTDurationT

size = addWord(duration)

size = addWord(0x00000000)

addAtomEnd

size = addWord(0x00000000)

size = add4ByteString("mhlr")

size = addWord(fCurrentIOState->fQTcomponentSubtype)

size = add4ByteString("appl")

size = addWord(0x00000000)

size = addWord(0x00000000)

size = addArbitraryString(fCurrentIOState->fQTcomponentName)

addAtomEnd

SubsessionIOState::atomCreationFunc mediaInformationAtomCreator = fCurrentIOState->fQTMediaInformationAtomCreator

size = (this->*mediaInformationAtomCreator)()

size = addAtom_hdlr2()

size = addAtom_dinf()

size = addAtom_stbl()

addAtomEnd

size = addZeroWords(2)

addAtomEnd

size = addWord(0x00000001)

size = addWord(0x00408000)

size = addWord(0x80008000)

addAtomEnd

size = addAtom_gmin()

addAtomEnd

size = addWord(0x00000000)

size = addWord(0x00408000)

size = addWord(0x80008000)

size = addWord(0x00000000)

addAtomEnd

Define Documentation

#define addAtom ( name )

Value:

unsigned QuickTimeFileSink::addAtom_##name() { \
    unsigned initFilePosn = ftell(fOutFid); \
    unsigned size = addAtomHeader("" #name "")

Definition at line 1203 of file QuickTimeFileSink.cpp.

Referenced by QuickTimeFileSink::addAtom_hdlr2().

#define addAtomEnd

Value:

setWord(initFilePosn, size); \
  return size; \
}

Definition at line 1208 of file QuickTimeFileSink.cpp.

Referenced by QuickTimeFileSink::addAtom_hdlr2().

#define addEdit ( duration ) addEdit1((duration),editTrackPosition)

Definition at line 1357 of file QuickTimeFileSink.cpp.

Referenced by while().

#define addEdit1	(	duration,
		trackPosition		)

Value:

do { \
      unsigned trackDuration \
        = (unsigned) ((2*(duration)*movieTimeScale()+1)/2); \
            /* in movie time units */ \
      size += addWord(trackDuration); /* Track duration */ \
      totalDurationOfEdits += trackDuration; \
      size += addWord(trackPosition); /* Media time */ \
      size += addWord(0x00010000); /* Media rate (1x) */ \
      ++numEdits; \
} while (0)

Definition at line 1347 of file QuickTimeFileSink.cpp.

#define addEmptyEdit ( duration ) addEdit1((duration),(~0))

Definition at line 1358 of file QuickTimeFileSink.cpp.

Referenced by while().

#define fourChar	(	x,
		y,
		z,
		w	)	( ((x)<<24)\|((y)<<16)\|((z)<<8)\|(w) )

Definition at line 32 of file QuickTimeFileSink.cpp.

Function Documentation

addAtom ( gmin )

addAtom ( gmhd )

addAtom ( vmhd )

addAtom ( smhd )

addAtom ( minf )

addAtom ( hdlr )

addAtom ( mdhd )

addAtom ( mdia )

addAtom ( hint )

addAtom ( tref )

addAtom ( elst )

addAtom ( edts )

addAtom ( tkhd )

addAtom ( trak )

addAtom ( iods )

addAtom ( mvhd )

addAtom ( moov )

addAtom ( ftyp )

if	(	totalDurationOfEdits	,
		fCurrentIOState->	fQTDurationM
	)

Definition at line 1431 of file QuickTimeFileSink.cpp.

References QuickTimeFileSink::fCurrentIOState, QuickTimeFileSink::fMaxTrackDurationM, QuickTimeFileSink::fMVHD_durationPosn, SubsessionIOState::fQTDurationM, SubsessionIOState::fQTDurationT, SubsessionIOState::fQTTimeScale, SubsessionIOState::fTKHD_durationPosn, QuickTimeFileSink::movieTimeScale(), and QuickTimeFileSink::setWord().

01431                                                             {
01432     fCurrentIOState->fQTDurationM = totalDurationOfEdits;
01433     setWord(fCurrentIOState->fTKHD_durationPosn, totalDurationOfEdits);
01434 
01435     // Also, check whether the overall movie duration needs to change:
01436     if (totalDurationOfEdits > fMaxTrackDurationM) {
01437       fMaxTrackDurationM = totalDurationOfEdits;
01438       setWord(fMVHD_durationPosn, totalDurationOfEdits);
01439     }
01440 
01441     // Also, convert to track time scale:
01442     double scaleFactor
01443       = fCurrentIOState->fQTTimeScale/(double)movieTimeScale();
01444     fCurrentIOState->fQTDurationT
01445       = (unsigned)(totalDurationOfEdits*scaleFactor);
01446   }

if	(	trackDurationOfEdit	,
		0.	0
	)

if ( strcmp(fCurrentIOState->fOurSubsession.mediumName(),"video") = = 0 )

Definition at line 1335 of file QuickTimeFileSink.cpp.

References QuickTimeFileSink::addWord(), QuickTimeFileSink::fMovieHeight, QuickTimeFileSink::fMovieWidth, and size.

01335                                                                           {
01336     size += addWord(fMovieWidth<<16); // Track width
01337     size += addWord(fMovieHeight<<16); // Track height
01338   } else {

if ( fCurrentIOState-> fQTEnableTrack )

Definition at line 1314 of file QuickTimeFileSink.cpp.

References QuickTimeFileSink::addWord(), and size.

01314                                        {
01315     size += addWord(0x0000000F); // Version +  Flags
01316   } else {

if ( fCurrentIOState-> isHintTrack() ) = addAtom_udta()

if ( fCurrentIOState->fHeadChunk! = NULL && (fSyncStreams || fCurrentIOState->isHintTrack()) )

Definition at line 1299 of file QuickTimeFileSink.cpp.

References size.

01300                                                            {
01301     size += addAtom_edts();
01302   }

if ( fGenerateMP4Format )

Definition at line 1223 of file QuickTimeFileSink.cpp.

References size.

01223                           {
01224     size += addAtom_iods();
01225   }

iter reset ( )

setWord	(	numEntriesPosition	,
		numEdits
	)

static Boolean timevalGE	(	struct timeval const &	tv1,
		struct timeval const &	tv2
	)			`[static]`

Definition at line 442 of file QuickTimeFileSink.cpp.

Referenced by QuickTimeFileSink::completeOutputFile(), and SubsessionIOState::syncOK().

00443                                                     {
00444   return (unsigned)tv1.tv_sec > (unsigned)tv2.tv_sec
00445     || (tv1.tv_sec == tv2.tv_sec
00446         && (unsigned)tv1.tv_usec >= (unsigned)tv2.tv_usec);
00447 }

while ( chunk! = NULL )

Definition at line 1384 of file QuickTimeFileSink.cpp.

References addEdit, addEmptyEdit, chunk, QuickTimeFileSink::fCurrentIOState, ChunkDescriptor::fFrameDuration, ChunkDescriptor::fNextChunk, ChunkDescriptor::fNumFrames, SubsessionIOState::fOurSubsession, ChunkDescriptor::fPresentationTime, SubsessionIOState::fQTTimeScale, and MediaSubsession::numChannels().

01384                         {
01385     struct timeval const& chunkStartTime = chunk->fPresentationTime;
01386     double movieDurationOfEdit
01387       = (chunkStartTime.tv_sec - editStartTime.tv_sec)
01388       + (chunkStartTime.tv_usec - editStartTime.tv_usec)/1000000.0;
01389     trackDurationOfEdit = (currentTrackPosition-editTrackPosition)
01390       / (double)(fCurrentIOState->fQTTimeScale);
01391       
01392     double outOfSync = movieDurationOfEdit - trackDurationOfEdit;
01393 
01394     if (outOfSync > syncThreshold) {
01395       // The track's data is too short, so end this edit, add a new
01396       // 'empty' edit after it, and start a new edit
01397       // (at the current track posn.):
01398       if (trackDurationOfEdit > 0.0) addEdit(trackDurationOfEdit);
01399       addEmptyEdit(outOfSync);
01400 
01401       editStartTime = chunkStartTime;
01402       editTrackPosition = currentTrackPosition;
01403     } else if (outOfSync < -syncThreshold) {
01404       // The track's data is too long, so end this edit, and start
01405       // a new edit (pointing at the current track posn.):
01406       if (movieDurationOfEdit > 0.0) addEdit(movieDurationOfEdit);
01407 
01408       editStartTime = chunkStartTime;
01409       editTrackPosition = currentTrackPosition;
01410     }
01411 
01412     // Note the duration of this chunk:
01413     unsigned numChannels = fCurrentIOState->fOurSubsession.numChannels();
01414     chunkDuration = chunk->fNumFrames*chunk->fFrameDuration/numChannels;
01415     currentTrackPosition += chunkDuration;
01416 
01417     chunk = chunk->fNextChunk;
01418   }

while ( (subsession=iter.next())! = NULL )

Definition at line 1233 of file QuickTimeFileSink.cpp.

References QuickTimeFileSink::fCurrentIOState, SubsessionIOState::fHintTrackForUs, SubsessionIOState::hasHintTrack(), MediaSubsession::mediumName(), MediaSubsession::miscPtr, NULL, size, and subsession.

01233                                              {
01234     fCurrentIOState = (SubsessionIOState*)(subsession->miscPtr); 
01235     if (fCurrentIOState == NULL) continue;
01236     if (strcmp(subsession->mediumName(), "audio") != 0) continue;
01237 
01238     size += addAtom_trak();
01239 
01240     if (fCurrentIOState->hasHintTrack()) {
01241       // This track has a hint track; output it also:
01242       fCurrentIOState = fCurrentIOState->fHintTrackForUs;
01243       size += addAtom_trak();
01244     }
01245   }


Data Structures
class	ChunkDescriptor
class	SubsessionBuffer
class	Count64
class	SubsessionIOState
struct	SubsessionIOState::hinf
Defines
#define	fourChar(x, y, z, w) ( ((x)<<24)\|((y)<<16)\|((z)<<8)\|(w) )
#define	addAtom(name)
#define	addAtomEnd
#define	addEdit1(duration, trackPosition)
#define	addEdit(duration) addEdit1((duration),editTrackPosition)
#define	addEmptyEdit(duration) addEdit1((duration),(~0))
Functions
static Boolean	timevalGE (struct timeval const &tv1, struct timeval const &tv2)
	addAtom (ftyp)
	addAtom (moov)
	if (fGenerateMP4Format)
	while ((subsession=iter.next())!=NULL)
iter	reset ()
	addAtom (mvhd)
	addAtom (iods)
	addAtom (trak)
	if (fCurrentIOState->fHeadChunk!=NULL &&(fSyncStreams\|\|fCurrentIOState->isHintTrack()))
	if (fCurrentIOState->isHintTrack()) size+ = addAtom_udta()
	addAtom (tkhd)
	if (fCurrentIOState->fQTEnableTrack)
	if (strcmp(fCurrentIOState->fOurSubsession.mediumName(),"video")==0)
	addAtom (edts)
	addAtom (elst)
	while (chunk!=NULL)
	if (trackDurationOfEdit > 0.0) addEdit(trackDurationOfEdit)
	setWord (numEntriesPosition, numEdits)
	if (totalDurationOfEdits > fCurrentIOState->fQTDurationM)
	addAtom (tref)
	addAtom (hint)
	addAtom (mdia)
	addAtom (mdhd)
	addAtom (hdlr)
	addAtom (minf)
	addAtom (smhd)
	addAtom (vmhd)
	addAtom (gmhd)
	addAtom (gmin)
Variables
	size = add4ByteString("mp42")
	size = addWord(0x00000000)
	size = add4ByteString("mp42")
	size = add4ByteString("isom")
	addAtomEnd
	size = addAtom_mvhd()
MediaSubsessionIterator	iter (fInputSession)
MediaSubsession *	subsession
	addAtomEnd
	size = addWord(0x00000000)
	size = addWord(fAppleCreationTime)
	size = addWord(fAppleCreationTime)
	size = addWord(movieTimeScale())
unsigned const	duration = fMaxTrackDurationM
	fMVHD_durationPosn = ftell(fOutFid)
	size = addWord(duration)
	size = addWord(0x00010000)
	size = addWord(0x01000000)
	size = addZeroWords(2)
	size = addWord(0x00010000)
	size = addZeroWords(3)
	size = addWord(0x00010000)
	size = addZeroWords(3)
	size = addWord(0x40000000)
	size = addZeroWords(6)
	size = addWord(SubsessionIOState::fCurrentTrackNumber+1)
	addAtomEnd
	size = addWord(0x00000000)
	size = addWord(0x10808080)
	size = addWord(0x07004FFF)
	size = addWord(0xFF0FFFFF)
	addAtomEnd
	size = addAtom_tkhd()
	size = addAtom_mdia()
	addAtomEnd
	size = addWord(fAppleCreationTime)
	size = addWord(fCurrentIOState->fTrackID)
	size = addWord(0x00000000)
unsigned const	duration = fCurrentIOState->fQTDurationM
fCurrentIOState	fTKHD_durationPosn = ftell(fOutFid)
	size = addWord(duration)
	size = addZeroWords(3)
	size = addWord(0x01000000)
	size = addWord(0x00010000)
	size = addZeroWords(3)
	size = addWord(0x00010000)
	size = addZeroWords(3)
	size = addWord(0x40000000)
	size = addAtom_elst()
	addAtomEnd
	size = addWord(0x00000000)
unsigned	numEntriesPosition = ftell(fOutFid)
	size = addWord(0)
unsigned	numEdits = 0
unsigned	totalDurationOfEdits = 0
double const	syncThreshold = 0.1
timeval	editStartTime = fFirstDataTime
unsigned	editTrackPosition = 0
unsigned	currentTrackPosition = 0
double	trackDurationOfEdit = 0.0
unsigned	chunkDuration = 0
ChunkDescriptor *	chunk = fCurrentIOState->fHeadChunk
	trackDurationOfEdit = (double)chunkDuration/fCurrentIOState->fQTTimeScale
	addAtomEnd
	size = addAtom_hint()
	addAtomEnd
SubsessionIOState *	hintedTrack = fCurrentIOState->fTrackHintedByUs
	size = addWord(hintedTrack->fTrackID)
	addAtomEnd
	size = addAtom_mdhd()
	size = addAtom_hdlr()
	size = addAtom_minf()
	addAtomEnd
	size = addWord(0x00000000)
	size = addWord(fAppleCreationTime)
	size = addWord(fAppleCreationTime)
unsigned const	timeScale = fCurrentIOState->fQTTimeScale
	size = addWord(timeScale)
unsigned const	duration = fCurrentIOState->fQTDurationT
	size = addWord(duration)
	size = addWord(0x00000000)
	addAtomEnd
	size = addWord(0x00000000)
	size = add4ByteString("mhlr")
	size = addWord(fCurrentIOState->fQTcomponentSubtype)
	size = add4ByteString("appl")
	size = addWord(0x00000000)
	size = addWord(0x00000000)
	size = addArbitraryString(fCurrentIOState->fQTcomponentName)
	addAtomEnd
SubsessionIOState::atomCreationFunc	mediaInformationAtomCreator = fCurrentIOState->fQTMediaInformationAtomCreator
	size = (this->*mediaInformationAtomCreator)()
	size = addAtom_hdlr2()
	size = addAtom_dinf()
	size = addAtom_stbl()
	addAtomEnd
	size = addZeroWords(2)
	addAtomEnd
	size = addWord(0x00000001)
	size = addWord(0x00408000)
	size = addWord(0x80008000)
	addAtomEnd
	size = addAtom_gmin()
	addAtomEnd
	size = addWord(0x00000000)
	size = addWord(0x00408000)
	size = addWord(0x80008000)
	size = addWord(0x00000000)
	addAtomEnd

liveMedia/QuickTimeFileSink.cpp File Reference

Data Structures

Defines

Functions

Variables

Define Documentation

Function Documentation

Variable Documentation