live: MP3ADUinterleaver Class Reference

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.

MP3ADUinterleaver::MP3ADUinterleaver	(	UsageEnvironment &	env,
		Interleaving const &	interleaving,
		FramedSource *	inputSource
	)			`[protected]`

Definition at line 113 of file MP3ADUinterleaving.cpp.

Referenced by createNew().

00116   : MP3ADUinterleaverBase(env, inputSource),
00117     fInterleaving(interleaving),
00118     fFrames(new InterleavingFrames(interleaving.cycleSize())),
00119     fII(0), fICC(0) {
00120 }

MP3ADUinterleaver::~MP3ADUinterleaver ( ) [protected, virtual]

Definition at line 122 of file MP3ADUinterleaving.cpp.

References fFrames.

00122                                       {
00123   delete fFrames;
00124 }

MP3ADUinterleaver * MP3ADUinterleaver::createNew	(	UsageEnvironment &	env,
		Interleaving const &	interleaving,
		FramedSource *	inputSource
	)			`[static]`

Definition at line 126 of file MP3ADUinterleaving.cpp.

References env, FramedFilter::inputSource(), and MP3ADUinterleaver().

Referenced by MP3AudioFileServerMediaSubsession::createNewStreamSource().

00128                                                                            {
00129   return new MP3ADUinterleaver(env, interleaving, inputSource);
00130 }

void MP3ADUinterleaver::doGetNextFrame ( ) [private, virtual]

Implements FramedSource.

Definition at line 132 of file MP3ADUinterleaving.cpp.

References FramedSource::afterGetting(), MP3ADUinterleaverBase::afterGettingFrame(), fFrames, fII, FramedFilter::fInputSource, fInterleaving, fPositionOfNextIncomingFrame, InterleavingFrames::getIncomingFrameParams(), FramedSource::getNextFrame(), FramedSource::handleClosure(), InterleavingFrames::haveReleaseableFrame(), Interleaving::lookupInverseCycle(), and releaseOutgoingFrame().

00132                                        {
00133   // If there's a frame immediately available, deliver it, otherwise get new
00134   // frames from the source until one's available:
00135   if (fFrames->haveReleaseableFrame()) {
00136     releaseOutgoingFrame();
00137 
00138     // Call our own 'after getting' function.  Because we're not a 'leaf'
00139     // source, we can call this directly, without risking infinite recursion.
00140     afterGetting(this);
00141   } else {
00142     fPositionOfNextIncomingFrame = fInterleaving.lookupInverseCycle(fII);
00143     unsigned char* dataPtr;
00144     unsigned bytesAvailable;
00145     fFrames->getIncomingFrameParams(fPositionOfNextIncomingFrame,
00146                                     dataPtr, bytesAvailable);
00147 
00148     // Read the next incoming frame (asynchronously)
00149     fInputSource->getNextFrame(dataPtr, bytesAvailable,
00150                                &MP3ADUinterleaverBase::afterGettingFrame, this,
00151                                handleClosure, this);
00152   }
00153 }

void MP3ADUinterleaver::afterGettingFrame	(	unsigned	numBytesRead,
		struct timeval	presentationTime,
		unsigned	durationInMicroseconds
	)			`[private, virtual]`

Implements MP3ADUinterleaverBase.

Definition at line 170 of file MP3ADUinterleaving.cpp.

References Interleaving::cycleSize(), fFrames, fICC, fII, fInterleaving, fPositionOfNextIncomingFrame, and InterleavingFrames::setFrameParams().

00172                                                                            {
00173   // Set the (icc,ii) and frame size of the newly-read frame:
00174   fFrames->setFrameParams(fPositionOfNextIncomingFrame,
00175                           fICC, fII, numBytesRead,
00176                           presentationTime, durationInMicroseconds);
00177 
00178   // Prepare our counters for the next frame:
00179   if (++fII == fInterleaving.cycleSize()) {
00180     fII = 0;
00181     fICC = (fICC+1)%8;
00182   }
00183 }

void MP3ADUinterleaver::releaseOutgoingFrame ( ) [private]

Definition at line 155 of file MP3ADUinterleaving.cpp.

References FramedSource::fDurationInMicroseconds, fFrames, FramedSource::fFrameSize, FramedSource::fMaxSize, FramedSource::fNumTruncatedBytes, FramedSource::fPresentationTime, FramedSource::fTo, InterleavingFrames::getReleasingFrameParams(), InterleavingFrames::nextIndexToRelease(), and InterleavingFrames::releaseNext().

Referenced by doGetNextFrame().

00155                                              {
00156   unsigned char* fromPtr;
00157   fFrames->getReleasingFrameParams(fFrames->nextIndexToRelease(),
00158                                    fromPtr, fFrameSize,
00159                                    fPresentationTime, fDurationInMicroseconds);
00160 
00161   if (fFrameSize > fMaxSize) {
00162     fNumTruncatedBytes = fFrameSize - fMaxSize;
00163     fFrameSize = fMaxSize;
00164   }
00165   memmove(fTo, fromPtr, fFrameSize);
00166 
00167   fFrames->releaseNext();
00168 }

FramedSource * MP3ADUinterleaverBase::getInputSource	(	UsageEnvironment &	env,
		char const *	inputSourceName
	)			`[static, protected, inherited]`

Definition at line 52 of file MP3ADUinterleaving.cpp.

References env, FramedFilter::inputSource(), FramedSource::lookupByName(), MediaSource::MIMEtype(), and NULL.

00053                                                                                  {
00054   FramedSource* inputSource;
00055   if (!FramedSource::lookupByName(env, inputSourceName, inputSource))
00056     return NULL;
00057 
00058   if (strcmp(inputSource->MIMEtype(), "audio/MPA-ROBUST") != 0) {
00059     env.setResultMsg(inputSourceName, " is not an MP3 ADU source");
00060     return NULL;
00061   }
00062 
00063   return inputSource;
00064 }

void MP3ADUinterleaverBase::afterGettingFrame	(	void *	clientData,
		unsigned	numBytesRead,
		unsigned	numTruncatedBytes,
		struct timeval	presentationTime,
		unsigned	durationInMicroseconds
	)			`[static, protected, inherited]`

Definition at line 66 of file MP3ADUinterleaving.cpp.

References MP3ADUinterleaverBase::afterGettingFrame(), and FramedSource::doGetNextFrame().

Referenced by MP3ADUinterleaverBase::afterGettingFrame(), MP3ADUdeinterleaver::doGetNextFrame(), and doGetNextFrame().

00070                                                                                {
00071   MP3ADUinterleaverBase* interleaverBase = (MP3ADUinterleaverBase*)clientData;
00072   // Finish up after reading:
00073   interleaverBase->afterGettingFrame(numBytesRead,
00074                                      presentationTime, durationInMicroseconds);
00075 
00076   // Then, continue to deliver an outgoing frame:
00077   interleaverBase->doGetNextFrame();
00078 }

FramedSource* FramedFilter::inputSource ( ) const [inline, inherited]

Definition at line 30 of file FramedFilter.hh.

References FramedFilter::fInputSource.

Referenced by AC3AudioStreamFramer::AC3AudioStreamFramer(), EndianSwap16::createNew(), HostFromNetworkOrder16::createNew(), NetworkFromHostOrder16::createNew(), PCMFromuLawAudioSource::createNew(), QCELPDeinterleaver::createNew(), MPEG4VideoStreamFramer::createNew(), MPEG4VideoStreamDiscreteFramer::createNew(), MPEG2IFrameIndexFromTransportStream::createNew(), MPEG1or2VideoStreamFramer::createNew(), MPEG1or2VideoStreamDiscreteFramer::createNew(), MPEG1or2AudioStreamFramer::createNew(), MP3Transcoder::createNew(), MP3ADUTranscoder::createNew(), MP3ADUdeinterleaver::createNew(), createNew(), MP3FromADUSource::createNew(), ADUFromMP3Source::createNew(), H263plusVideoStreamFramer::createNew(), AC3AudioStreamFramer::createNew(), H264VideoRTPSink::doSpecialFrameHandling(), MP3ADUinterleaverBase::getInputSource(), H263plusVideoStreamFramer::H263plusVideoStreamFramer(), MPEG1or2VideoStreamFramer::MPEG1or2VideoStreamFramer(), MPEG4VideoStreamFramer::MPEG4VideoStreamFramer(), MP3AudioFileServerMediaSubsession::seekStreamSource(), ClientTrickPlayState::setSource(), and MP3AudioFileServerMediaSubsession::setStreamSourceScale().

00030 { return fInputSource; }

char const * FramedFilter::MIMEtype ( ) const [protected, virtual, inherited]

Reimplemented from MediaSource.

Reimplemented in ADUFromMP3Source, and MP3FromADUSource.

Definition at line 39 of file FramedFilter.cpp.

References FramedFilter::fInputSource, MediaSource::MIMEtype(), and NULL.

00039                                          {
00040   if (fInputSource == NULL) return "";
00041 
00042   return fInputSource->MIMEtype();
00043 }

void FramedFilter::getAttributes ( ) const [protected, virtual, inherited]

Reimplemented from MediaSource.

Reimplemented in MP3ADUTranscoder.

Definition at line 45 of file FramedFilter.cpp.

References FramedFilter::fInputSource, MediaSource::getAttributes(), and NULL.

00045                                        {
00046   if (fInputSource != NULL) fInputSource->getAttributes();
00047 }

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

Reimplemented from FramedSource.

Reimplemented in MPEG2TransportStreamFramer, and MPEG2TransportStreamTrickModeFilter.

Definition at line 49 of file FramedFilter.cpp.

References FramedFilter::fInputSource, NULL, and FramedSource::stopGettingFrames().

Referenced by MPEG2TransportStreamTrickModeFilter::doStopGettingFrames(), and MPEG2TransportStreamFramer::doStopGettingFrames().

00049                                        {
00050   if (fInputSource != NULL) fInputSource->stopGettingFrames();
00051 }

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 }

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::isRTPSource ( ) const [virtual, inherited]

Reimplemented in RTPSource.

Definition at line 43 of file MediaSource.cpp.

References False.

Referenced by RTPSource::lookupByName().

00043                                        {
00044   return False; // default implementation
00045 }

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 }

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

Reimplemented in JPEGVideoSource.

Definition at line 55 of file MediaSource.cpp.

References False.

Referenced by JPEGVideoRTPSink::sourceIsCompatibleWithUs().

00055                                              {
00056   return False; // default implementation
00057 }

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

Reimplemented in AMRAudioSource.

Definition at line 58 of file MediaSource.cpp.

References False.

Referenced by AMRAudioRTPSink::sourceIsCompatibleWithUs(), and AMRAudioFileSink::sourceIsCompatibleWithUs().

00058                                             {
00059   return False; // default implementation
00060 }

void Medium::close	(	UsageEnvironment &	env,
		char const *	mediumName
	)			`[static, inherited]`

Definition at line 76 of file Media.cpp.

References env, MediaLookupTable::ourMedia(), and MediaLookupTable::remove().

00076                                                           {
00077   MediaLookupTable::ourMedia(env)->remove(name);
00078 }

void Medium::close ( Medium * medium ) [static, inherited]

Definition at line 80 of file Media.cpp.

References Medium::close(), Medium::envir(), Medium::name(), and NULL.

00080                                  {
00081   if (medium == NULL) return;
00082 
00083   close(medium->envir(), medium->name());
00084 }

UsageEnvironment& Medium::envir ( ) const [inline, inherited]

Definition at line 59 of file Media.hh.

References Medium::fEnviron.


Public Types
typedef void(	afterGettingFunc )(void *clientData, unsigned frameSize, unsigned numTruncatedBytes, struct timeval presentationTime, unsigned durationInMicroseconds)
typedef void(	onCloseFunc )(void *clientData)
Public Member Functions
FramedSource *	inputSource () 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	isRTPSource () 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 MP3ADUinterleaver *	createNew (UsageEnvironment &env, Interleaving const &interleaving, FramedSource *inputSource)
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
	MP3ADUinterleaver (UsageEnvironment &env, Interleaving const &interleaving, FramedSource *inputSource)
virtual	~MP3ADUinterleaver ()
virtual char const *	MIMEtype () const
virtual void	getAttributes () const
virtual void	doStopGettingFrames ()
TaskToken &	nextTask ()
Static Protected Member Functions
static FramedSource *	getInputSource (UsageEnvironment &env, char const *inputSourceName)
static void	afterGettingFrame (void *clientData, unsigned numBytesRead, unsigned numTruncatedBytes, struct timeval presentationTime, unsigned durationInMicroseconds)
static void	afterGetting (FramedSource *source)
Protected Attributes
FramedSource *	fInputSource
unsigned char *	fTo
unsigned	fMaxSize
unsigned	fFrameSize
unsigned	fNumTruncatedBytes
timeval	fPresentationTime
unsigned	fDurationInMicroseconds
Private Member Functions
virtual void	doGetNextFrame ()
virtual void	afterGettingFrame (unsigned numBytesRead, struct timeval presentationTime, unsigned durationInMicroseconds)
void	releaseOutgoingFrame ()
Private Attributes
Interleaving const	fInterleaving
InterleavingFrames *	fFrames
unsigned char	fPositionOfNextIncomingFrame
unsigned	fII
unsigned	fICC

MP3ADUinterleaver 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