JPEGVideoRTPSource Class Reference

#include <JPEGVideoRTPSource.hh>

Inheritance diagram for JPEGVideoRTPSource:

[legend]Collaboration diagram for JPEGVideoRTPSource:


Public Types
typedef void(	afterGettingFunc )(void *clientData, unsigned frameSize, unsigned numTruncatedBytes, struct timeval presentationTime, unsigned durationInMicroseconds)
typedef void(	onCloseFunc )(void *clientData)
Public Member Functions
Boolean	curPacketMarkerBit () const
unsigned char	rtpPayloadFormat () const
virtual Boolean	hasBeenSynchronizedUsingRTCP ()
Groupsock *	RTPgs () const
u_int32_t	SSRC () const
unsigned	timestampFrequency () const
RTPReceptionStatsDB &	receptionStatsDB () const
u_int32_t	lastReceivedSSRC () const
void	setStreamSocket (int sockNum, unsigned char streamChannelId)
void	setAuxilliaryReadHandler (AuxHandlerFunc handlerFunc, void handlerClientData)
u_int16_t	curPacketRTPSeqNum () const
u_int32_t	curPacketRTPTimestamp () const
void	getNextFrame (unsigned char to, unsigned maxSize, afterGettingFunc afterGettingFunc, void afterGettingClientData, onCloseFunc onCloseFunc, void *onCloseClientData)
void	stopGettingFrames ()
virtual unsigned	maxFrameSize () const
Boolean	isCurrentlyAwaitingData () const
virtual Boolean	isMPEG1or2VideoStreamFramer () const
virtual Boolean	isMPEG4VideoStreamFramer () const
virtual Boolean	isH264VideoStreamFramer () const
virtual Boolean	isJPEGVideoSource () const
virtual Boolean	isAMRAudioSource () const
UsageEnvironment &	envir () const
char const *	name () const
virtual Boolean	isSink () const
virtual Boolean	isRTCPInstance () const
virtual Boolean	isRTSPClient () const
virtual Boolean	isRTSPServer () const
virtual Boolean	isMediaSession () const
virtual Boolean	isServerMediaSession () const
virtual Boolean	isDarwinInjector () const
Static Public Member Functions
static JPEGVideoRTPSource *	createNew (UsageEnvironment &env, Groupsock *RTPgs, unsigned char rtpPayloadFormat=26, unsigned rtpPayloadFrequency=90000, unsigned defaultWidth=0, unsigned defaultHeight=0)
static Boolean	lookupByName (UsageEnvironment &env, char const sourceName, RTPSource &resultSource)
static Boolean	lookupByName (UsageEnvironment &env, char const sourceName, FramedSource &resultSource)
static Boolean	lookupByName (UsageEnvironment &env, char const sourceName, MediaSource &resultSource)
static Boolean	lookupByName (UsageEnvironment &env, char const mediumName, Medium &resultMedium)
static void	handleClosure (void *clientData)
static void	close (UsageEnvironment &env, char const *mediumName)
static void	close (Medium *medium)
Protected Member Functions
virtual	~JPEGVideoRTPSource ()
virtual Boolean	packetIsUsableInJitterCalculation (unsigned char *packet, unsigned packetSize)
virtual void	doStopGettingFrames ()
TaskToken &	nextTask ()
Static Protected Member Functions
static void	afterGetting (FramedSource *source)
Protected Attributes
Boolean	fCurrentPacketBeginsFrame
Boolean	fCurrentPacketCompletesFrame
RTPInterface	fRTPInterface
u_int16_t	fCurPacketRTPSeqNum
u_int32_t	fCurPacketRTPTimestamp
Boolean	fCurPacketMarkerBit
Boolean	fCurPacketHasBeenSynchronizedUsingRTCP
u_int32_t	fLastReceivedSSRC
unsigned char *	fTo
unsigned	fMaxSize
unsigned	fFrameSize
unsigned	fNumTruncatedBytes
timeval	fPresentationTime
unsigned	fDurationInMicroseconds
Private Member Functions
	JPEGVideoRTPSource (UsageEnvironment &env, Groupsock *RTPgs, unsigned char rtpPayloadFormat, unsigned rtpTimestampFrequency, unsigned defaultWidth, unsigned defaultHeight)
virtual Boolean	processSpecialHeader (BufferedPacket *packet, unsigned &resultSpecialHeaderSize)
virtual char const *	MIMEtype () const
Private Attributes
unsigned	fDefaultWidth
unsigned	fDefaultHeight

Detailed Description

Definition at line 30 of file JPEGVideoRTPSource.hh.

Member Typedef Documentation

typedef void( FramedSource::afterGettingFunc)(void *clientData, unsigned frameSize, unsigned numTruncatedBytes, struct timeval presentationTime, unsigned durationInMicroseconds) [inherited]

Definition at line 36 of file FramedSource.hh.

typedef void( FramedSource::onCloseFunc)(void *clientData) [inherited]

Definition at line 40 of file FramedSource.hh.

Constructor & Destructor Documentation

JPEGVideoRTPSource::~JPEGVideoRTPSource ( ) [protected, virtual]

Definition at line 68 of file JPEGVideoRTPSource.cpp.

00068                                         {
00069 }

JPEGVideoRTPSource::JPEGVideoRTPSource	(	UsageEnvironment &	env,
		Groupsock *	RTPgs,
		unsigned char	rtpPayloadFormat,
		unsigned	rtpTimestampFrequency,
		unsigned	defaultWidth,
		unsigned	defaultHeight
	)			`[private]`

Definition at line 57 of file JPEGVideoRTPSource.cpp.

Referenced by createNew().

00062   : MultiFramedRTPSource(env, RTPgs,
00063                          rtpPayloadFormat, rtpTimestampFrequency,
00064                          new JPEGBufferedPacketFactory),
00065     fDefaultWidth(defaultWidth), fDefaultHeight(defaultHeight) {
00066 }

Member Function Documentation

JPEGVideoRTPSource * JPEGVideoRTPSource::createNew	(	UsageEnvironment &	env,
		Groupsock *	RTPgs,
		unsigned char	rtpPayloadFormat = `26`,
		unsigned	rtpPayloadFrequency = `90000`,
		unsigned	defaultWidth = `0`,
		unsigned	defaultHeight = `0`
	)			`[static]`

Definition at line 49 of file JPEGVideoRTPSource.cpp.

References env, JPEGVideoRTPSource(), and RTPSource::RTPgs().

Referenced by MediaSubsession::initiate().

00052                                                                              {
00053   return new JPEGVideoRTPSource(env, RTPgs, rtpPayloadFormat,
00054                                 rtpTimestampFrequency, defaultWidth, defaultHeight);
00055 }

Boolean JPEGVideoRTPSource::processSpecialHeader	(	BufferedPacket *	packet,
		unsigned &	resultSpecialHeaderSize
	)			`[private, virtual]`

Reimplemented from MultiFramedRTPSource.

Definition at line 311 of file JPEGVideoRTPSource.cpp.

References computeJPEGHeaderSize(), createJPEGHeader(), DWORD, False, MultiFramedRTPSource::fCurrentPacketBeginsFrame, MultiFramedRTPSource::fCurrentPacketCompletesFrame, fDefaultHeight, fDefaultWidth, makeDefaultQtables(), NULL, True, and WORD.

00312                                                           {
00313   unsigned char* headerStart = packet->data();
00314   unsigned packetSize = packet->dataSize();
00315 
00316   unsigned char* qtables = NULL;
00317   unsigned qtlen = 0;
00318   unsigned dri = 0;
00319 
00320   // There's at least 8-byte video-specific header
00321   /*
00322 0                   1                   2                   3
00323 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
00324 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
00325 | Type-specific |              Fragment Offset                  |
00326 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
00327 |      Type     |       Q       |     Width     |     Height    |
00328 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
00329   */
00330   if (packetSize < 8) return False;
00331 
00332   resultSpecialHeaderSize = 8;
00333 
00334   unsigned Offset = (unsigned)((DWORD)headerStart[1] << 16 | (DWORD)headerStart[2] << 8 | (DWORD)headerStart[3]);
00335   unsigned Type = (unsigned)headerStart[4];
00336   unsigned type = Type & 1;
00337   unsigned Q = (unsigned)headerStart[5];
00338   unsigned width = (unsigned)headerStart[6] * 8;
00339   unsigned height = (unsigned)headerStart[7] * 8;
00340   if ((width == 0 || height == 0) && fDefaultWidth != 0 && fDefaultHeight != 0) {
00341     // Use the default width and height parameters instead:
00342     width = fDefaultWidth;
00343     height = fDefaultHeight;
00344   }
00345   if (width == 0) width = 256*8; // special case
00346   if (height == 0) height = 256*8; // special case
00347 
00348   if (Type > 63) {
00349     // Restart Marker header present
00350     /*
00351 0                   1                   2                   3
00352 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
00353 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
00354 |       Restart Interval        |F|L|       Restart Count       |
00355 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
00356     */
00357     if (packetSize < resultSpecialHeaderSize + 4) return False;
00358 
00359     unsigned RestartInterval = (unsigned)((WORD)headerStart[resultSpecialHeaderSize] << 8 | (WORD)headerStart[resultSpecialHeaderSize + 1]);
00360     dri = RestartInterval;
00361     resultSpecialHeaderSize += 4;
00362   }
00363 
00364   if (Offset == 0) {
00365     if (Q > 127) {
00366       // Quantization Table header present
00367 /*
00368 0                   1                   2                   3
00369 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
00370 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
00371 |      MBZ      |   Precision   |             Length            |
00372 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
00373 |                    Quantization Table Data                    |
00374 |                              ...                              |
00375 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
00376 */
00377       if (packetSize < resultSpecialHeaderSize + 4) return False;
00378 
00379       unsigned MBZ = (unsigned)headerStart[resultSpecialHeaderSize];
00380       if (MBZ == 0) {
00381         // unsigned Precision = (unsigned)headerStart[resultSpecialHeaderSize + 1];
00382         unsigned Length = (unsigned)((WORD)headerStart[resultSpecialHeaderSize + 2] << 8 | (WORD)headerStart[resultSpecialHeaderSize + 3]);
00383 
00384         //ASSERT(Length == 128);
00385 
00386         resultSpecialHeaderSize += 4;
00387 
00388         if (packetSize < resultSpecialHeaderSize + Length) return False;
00389 
00390         qtlen = Length;
00391         qtables = &headerStart[resultSpecialHeaderSize];
00392 
00393         resultSpecialHeaderSize += Length;
00394       }
00395     }
00396   }
00397 
00398   // If this is the first (or only) fragment of a JPEG frame, then we need
00399   // to synthesize a JPEG header, and prepend it to the incoming data.
00400   // Hack: We can do this because we allowed space for it in
00401   // our special "JPEGBufferedPacket" subclass.  We also adjust
00402   // "resultSpecialHeaderSize" to compensate for this, by subtracting
00403   // the size of the synthesized header.  Note that this will cause
00404   // "resultSpecialHeaderSize" to become negative, but the code that called
00405   // us (in "MultiFramedRTPSource") will handle this properly.
00406   if (Offset == 0) {
00407     unsigned char newQtables[128];
00408     if (qtlen == 0) {
00409       // A quantization table was not present in the RTP JPEG header,
00410       // so use the default tables, scaled according to the "Q" factor:
00411       makeDefaultQtables(newQtables, Q);
00412       qtables = newQtables;
00413       qtlen = sizeof newQtables;
00414     }
00415 
00416     unsigned hdrlen = computeJPEGHeaderSize(qtlen, dri);
00417     resultSpecialHeaderSize -= hdrlen; // goes negative
00418     headerStart += (int)resultSpecialHeaderSize; // goes backward
00419     createJPEGHeader(headerStart, type, width, height, qtables, qtlen, dri);
00420   }
00421 
00422   fCurrentPacketBeginsFrame = (Offset == 0);
00423 
00424   // The RTP "M" (marker) bit indicates the last fragment of a frame:
00425   ((JPEGBufferedPacket*)packet)->completesFrame
00426    = fCurrentPacketCompletesFrame = packet->rtpMarkerBit();
00427 
00428   return True;
00429 }

char const * JPEGVideoRTPSource::MIMEtype ( ) const [private, virtual]

Reimplemented from MediaSource.

Definition at line 431 of file JPEGVideoRTPSource.cpp.

00431                                                {
00432   return "video/JPEG";
00433 }

Boolean MultiFramedRTPSource::packetIsUsableInJitterCalculation	(	unsigned char *	packet,
		unsigned	packetSize
	)			`[protected, virtual, inherited]`

Reimplemented in MPEG1or2VideoRTPSource.

Definition at line 98 of file MultiFramedRTPSource.cpp.

References True.

Referenced by MultiFramedRTPSource::networkReadHandler().

00099                                                              {
00100   // Default implementation:
00101   return True;
00102 }

void MultiFramedRTPSource::doStopGettingFrames ( ) [protected, virtual, inherited]

Reimplemented from FramedSource.

Definition at line 104 of file MultiFramedRTPSource.cpp.

References MultiFramedRTPSource::fReorderingBuffer, RTPSource::fRTPInterface, MultiFramedRTPSource::reset(), ReorderingPacketBuffer::reset(), and RTPInterface::stopNetworkReading().

00104                                                {
00105   fRTPInterface.stopNetworkReading();
00106   fReorderingBuffer->reset();
00107   reset();
00108 }

Boolean RTPSource::lookupByName	(	UsageEnvironment &	env,
		char const *	sourceName,
		RTPSource *&	resultSource
	)			`[static, inherited]`

Definition at line 26 of file RTPSource.cpp.

References env, False, MediaSource::isRTPSource(), MediaSource::lookupByName(), NULL, and True.

00028                                                           {
00029   resultSource = NULL; // unless we succeed
00030 
00031   MediaSource* source;
00032   if (!MediaSource::lookupByName(env, sourceName, source)) return False;
00033 
00034   if (!source->isRTPSource()) {
00035     env.setResultMsg(sourceName, " is not a RTP source");
00036     return False;
00037   }
00038 
00039   resultSource = (RTPSource*)source;
00040   return True;
00041 }

Boolean FramedSource::lookupByName	(	UsageEnvironment &	env,
		char const *	sourceName,
		FramedSource *&	resultSource
	)			`[static, inherited]`

Definition at line 41 of file FramedSource.cpp.

References env, False, MediaSource::isFramedSource(), MediaSource::lookupByName(), NULL, and True.

Referenced by MP3ADUinterleaverBase::getInputSource().

00042                                                                 {
00043   resultSource = NULL; // unless we succeed
00044 
00045   MediaSource* source;
00046   if (!MediaSource::lookupByName(env, sourceName, source)) return False;
00047 
00048   if (!source->isFramedSource()) {
00049     env.setResultMsg(sourceName, " is not a framed source");
00050     return False;
00051   }
00052 
00053   resultSource = (FramedSource*)source;
00054   return True;
00055 }

Boolean MediaSource::lookupByName	(	UsageEnvironment &	env,
		char const *	sourceName,
		MediaSource *&	resultSource
	)			`[static, inherited]`

Definition at line 62 of file MediaSource.cpp.

References env, False, Medium::isSource(), Medium::lookupByName(), NULL, and True.

Referenced by RTPSource::lookupByName(), and FramedSource::lookupByName().

00064                                                               {
00065   resultSource = NULL; // unless we succeed
00066 
00067   Medium* medium;
00068   if (!Medium::lookupByName(env, sourceName, medium)) return False;
00069 
00070   if (!medium->isSource()) {
00071     env.setResultMsg(sourceName, " is not a media source");
00072     return False;
00073   }
00074 
00075   resultSource = (MediaSource*)medium;
00076   return True;
00077 }

Boolean Medium::lookupByName	(	UsageEnvironment &	env,
		char const *	mediumName,
		Medium *&	resultMedium
	)			`[static, inherited]`

Definition at line 65 of file Media.cpp.

References env, False, MediaLookupTable::lookup(), NULL, MediaLookupTable::ourMedia(), UsageEnvironment::setResultMsg(), and True.

Referenced by ServerMediaSession::lookupByName(), RTSPServer::lookupByName(), RTSPClient::lookupByName(), RTCPInstance::lookupByName(), MediaSource::lookupByName(), MediaSink::lookupByName(), MediaSession::lookupByName(), and DarwinInjector::lookupByName().

00066                                                          {
00067   resultMedium = MediaLookupTable::ourMedia(env)->lookup(mediumName);
00068   if (resultMedium == NULL) {
00069     env.setResultMsg("Medium ", mediumName, " does not exist");
00070     return False;
00071   }
00072 
00073   return True;
00074 }

Boolean RTPSource::curPacketMarkerBit ( ) const [inline, inherited]

Definition at line 38 of file RTPSource.hh.

References RTPSource::fCurPacketMarkerBit.

Referenced by SubsessionIOState::useFrameForHinting().

00038 { return fCurPacketMarkerBit; }

unsigned char RTPSource::rtpPayloadFormat ( ) const [inline, inherited]

Definition at line 40 of file RTPSource.hh.

References RTPSource::fRTPPayloadFormat.

Referenced by QuickTimeFileSink::addAtom_hdlr2(), MultiFramedRTPSource::networkReadHandler(), and SubsessionIOState::useFrameForHinting().

00040 { return fRTPPayloadFormat; }

Boolean RTPSource::hasBeenSynchronizedUsingRTCP ( ) [virtual, inherited]

Reimplemented in RawAMRRTPSource, and RawQCELPRTPSource.

Definition at line 43 of file RTPSource.cpp.

References RTPSource::fCurPacketHasBeenSynchronizedUsingRTCP.

Referenced by checkForPacketArrival(), RawQCELPRTPSource::processSpecialHeader(), RawAMRRTPSource::processSpecialHeader(), SubsessionIOState::syncOK(), and SubsessionIOState::useFrame().

00043                                                 {
00044   return fCurPacketHasBeenSynchronizedUsingRTCP;
00045 }

Groupsock* RTPSource::RTPgs ( ) const [inline, inherited]

u_int32_t RTPSource::SSRC ( ) const [inline, inherited]

Definition at line 49 of file RTPSource.hh.

References RTPSource::fSSRC.

Referenced by RTCPInstance::addBYE(), RTCPInstance::addRR(), and RTCPInstance::addSDES().

00049 { return fSSRC; }

unsigned RTPSource::timestampFrequency ( ) const [inline, inherited]

Definition at line 53 of file RTPSource.hh.

References RTPSource::fTimestampFrequency.

Referenced by QuickTimeFileSink::addAtom_hdlr2(), MultiFramedRTPSource::networkReadHandler(), and RTPReceptionStats::noteIncomingPacket().

00053 {return fTimestampFrequency;}

RTPReceptionStatsDB& RTPSource::receptionStatsDB ( ) const [inline, inherited]

Definition at line 55 of file RTPSource.hh.

References RTPSource::fReceptionStatsDB.

Referenced by checkForPacketArrival(), checkInterPacketGaps(), RTCPInstance::enqueueCommonReportSuffix(), RTCPInstance::incomingReportHandler1(), MultiFramedRTPSource::networkReadHandler(), printQOSData(), qosMeasurementRecord::qosMeasurementRecord(), and RTCPInstance::removeSSRC().

00055                                                 {
00056     return *fReceptionStatsDB;
00057   }

u_int32_t RTPSource::lastReceivedSSRC ( ) const [inline, inherited]

Definition at line 59 of file RTPSource.hh.

References RTPSource::fLastReceivedSSRC.

00059 { return fLastReceivedSSRC; }

void RTPSource::setStreamSocket	(	int	sockNum,
		unsigned char	streamChannelId
	)			`[inline, inherited]`

Definition at line 62 of file RTPSource.hh.

References RTPSource::fRTPInterface, and RTPInterface::setStreamSocket().

Referenced by RTSPClient::setupMediaSubsession().

00062                                                                    {
00063     // hack to allow sending RTP over TCP (RFC 2236, section 10.12)
00064     fRTPInterface.setStreamSocket(sockNum, streamChannelId);
00065   }

void RTPSource::setAuxilliaryReadHandler	(	AuxHandlerFunc *	handlerFunc,
		void *	handlerClientData
	)			`[inline, inherited]`

Definition at line 67 of file RTPSource.hh.

References RTPSource::fRTPInterface, and RTPInterface::setAuxilliaryReadHandler().

00068                                                          {
00069     fRTPInterface.setAuxilliaryReadHandler(handlerFunc,
00070                                            handlerClientData);
00071   }

u_int16_t RTPSource::curPacketRTPSeqNum ( ) const [inline, inherited]

Definition at line 76 of file RTPSource.hh.

References RTPSource::fCurPacketRTPSeqNum.

Referenced by SubsessionIOState::afterGettingFrame(), AVISubsessionIOState::afterGettingFrame(), QCELPDeinterleaver::afterGettingFrame1(), and AMRDeinterleavingBuffer::deliverIncomingFrame().

00076 { return fCurPacketRTPSeqNum; }

u_int32_t RTPSource::curPacketRTPTimestamp ( ) const [inline, inherited]

Definition at line 77 of file RTPSource.hh.

References RTPSource::fCurPacketRTPTimestamp.

Referenced by MediaSubsession::getNormalPlayTime().

00077 { return fCurPacketRTPTimestamp; }

void FramedSource::getNextFrame	(	unsigned char *	to,
		unsigned	maxSize,
		afterGettingFunc *	afterGettingFunc,
		void *	afterGettingClientData,
		onCloseFunc *	onCloseFunc,
		void *	onCloseClientData
	)			`[inherited]`

Definition at line 57 of file FramedSource.cpp.

References FramedSource::doGetNextFrame(), Medium::envir(), FramedSource::fAfterGettingClientData, FramedSource::fAfterGettingFunc, FramedSource::fDurationInMicroseconds, FramedSource::fIsCurrentlyAwaitingData, FramedSource::fMaxSize, FramedSource::fNumTruncatedBytes, FramedSource::fOnCloseClientData, FramedSource::fOnCloseFunc, FramedSource::fTo, and True.

00061                                                          {
00062   // Make sure we're not already being read:
00063   if (fIsCurrentlyAwaitingData) {
00064     envir() << "FramedSource[" << this << "]::getNextFrame(): attempting to read more than once at the same time!\n";
00065     exit(1);
00066   }
00067 
00068   fTo = to;
00069   fMaxSize = maxSize;
00070   fNumTruncatedBytes = 0; // by default; could be changed by doGetNextFrame()
00071   fDurationInMicroseconds = 0; // by default; could be changed by doGetNextFrame()
00072   fAfterGettingFunc = afterGettingFunc;
00073   fAfterGettingClientData = afterGettingClientData;
00074   fOnCloseFunc = onCloseFunc;
00075   fOnCloseClientData = onCloseClientData;
00076   fIsCurrentlyAwaitingData = True;
00077 
00078   doGetNextFrame();
00079 }

void FramedSource::handleClosure ( void * clientData ) [static, inherited]

Definition at line 95 of file FramedSource.cpp.

References False, FramedSource::fIsCurrentlyAwaitingData, FramedSource::fOnCloseClientData, FramedSource::fOnCloseFunc, and NULL.

00095                                                  {
00096   FramedSource* source = (FramedSource*)clientData;
00097   source->fIsCurrentlyAwaitingData = False; // because we got a close instead
00098   if (source->fOnCloseFunc != NULL) {
00099     (*(source->fOnCloseFunc))(source->fOnCloseClientData);
00100   }
00101 }

void FramedSource::stopGettingFrames ( ) [inherited]

Definition at line 103 of file FramedSource.cpp.

References FramedSource::doStopGettingFrames(), False, and FramedSource::fIsCurrentlyAwaitingData.

Referenced by MPEG2TransportStreamFromPESSource::doStopGettingFrames(), FramedFilter::doStopGettingFrames(), AMRDeinterleaver::doStopGettingFrames(), and MediaSink::stopPlaying().

00103                                      {
00104   fIsCurrentlyAwaitingData = False; // indicates that we can be read again
00105 
00106   // Perform any specialized action now:
00107   doStopGettingFrames();
00108 }

unsigned FramedSource::maxFrameSize ( ) const [virtual, inherited]

Reimplemented in MPEG1or2DemuxedElementaryStream.

Definition at line 116 of file FramedSource.cpp.

Referenced by StreamParser::ensureValidBytes1().

00116                                           {
00117   // By default, this source has no maximum frame size.
00118   return 0;
00119 }

Boolean FramedSource::isCurrentlyAwaitingData ( ) const [inline, inherited]

Definition at line 60 of file FramedSource.hh.

References FramedSource::fIsCurrentlyAwaitingData.

Referenced by afterPlaying(), InputESSourceRecord::askForNewData(), MPEG2TransportStreamFromESSource::awaitNewBuffer(), QuickTimeFileSink::continuePlaying(), AVIFileSink::continuePlaying(), DeviceSource::deliverFrame(), QCELPDeinterleaver::doGetNextFrame(), AMRDeinterleaver::doGetNextFrame(), ByteStreamFileSource::fileReadableHandler(), and BasicUDPSource::incomingPacketHandler1().

00060 {return fIsCurrentlyAwaitingData;}

void FramedSource::afterGetting ( FramedSource * source ) [static, protected, inherited]

Definition at line 81 of file FramedSource.cpp.

References FramedSource::fAfterGettingClientData, FramedSource::fAfterGettingFunc, False, FramedSource::fDurationInMicroseconds, FramedSource::fFrameSize, FramedSource::fIsCurrentlyAwaitingData, FramedSource::fNumTruncatedBytes, FramedSource::fPresentationTime, and NULL.

00081                                                     {
00082   source->fIsCurrentlyAwaitingData = False;
00083       // indicates that we can be read again
00084       // Note that this needs to be done here, in case the "fAfterFunc"
00085       // called below tries to read another frame (which it usually will)
00086 
00087   if (source->fAfterGettingFunc != NULL) {
00088     (*(source->fAfterGettingFunc))(source->fAfterGettingClientData,
00089                                    source->fFrameSize, source->fNumTruncatedBytes,
00090                                    source->fPresentationTime,
00091                                    source->fDurationInMicroseconds);
00092   }
00093 }

Boolean MediaSource::isMPEG1or2VideoStreamFramer ( ) const [virtual, inherited]

Reimplemented in MPEG1or2VideoStreamFramer.

Definition at line 46 of file MediaSource.cpp.

References False.

Referenced by MPEG1or2VideoRTPSink::sourceIsCompatibleWithUs().

00046                                                        {
00047   return False; // default implementation
00048 }

Boolean MediaSource::isMPEG4VideoStreamFramer ( ) const [virtual, inherited]

Reimplemented in MPEG4VideoStreamFramer.

Definition at line 49 of file MediaSource.cpp.

References False.

Referenced by MPEG4ESVideoRTPSink::sourceIsCompatibleWithUs().

00049                                                     {
00050   return False; // default implementation
00051 }

Boolean MediaSource::isH264VideoStreamFramer ( ) const [virtual, inherited]

Reimplemented in H264VideoStreamFramer.

Definition at line 52 of file MediaSource.cpp.

References False.

Referenced by H264VideoRTPSink::sourceIsCompatibleWithUs().

00052                                                    {
00053   return False; // default implementation
00054 }

JPEGVideoRTPSource Class Reference

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation