ADUFromMP3Source Class Reference

#include <MP3ADU.hh>

Inheritance diagram for ADUFromMP3Source:

[legend]Collaboration diagram for ADUFromMP3Source:


Public Types
typedef void(	afterGettingFunc )(void *clientData, unsigned frameSize, unsigned numTruncatedBytes, struct timeval presentationTime, unsigned durationInMicroseconds)
typedef void(	onCloseFunc )(void *clientData)
Public Member Functions
void	resetInput ()
Boolean	setScaleFactor (int scale)
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 ADUFromMP3Source *	createNew (UsageEnvironment &env, FramedSource *inputSource, Boolean includeADUdescriptors=True)
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
	ADUFromMP3Source (UsageEnvironment &env, FramedSource *inputSource, Boolean includeADUdescriptors)
virtual	~ADUFromMP3Source ()
virtual void	getAttributes () const
virtual void	doStopGettingFrames ()
TaskToken &	nextTask ()
Static Protected Member Functions
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 char const *	MIMEtype () const
Boolean	doGetNextFrame1 ()
Private Attributes
Boolean	fAreEnqueueingMP3Frame
SegmentQueue *	fSegments
Boolean	fIncludeADUdescriptors
unsigned	fTotalDataSizeBeforePreviousRead
int	fScale
unsigned	fFrameCounter

Detailed Description

Definition at line 28 of file MP3ADU.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

ADUFromMP3Source::ADUFromMP3Source	(	UsageEnvironment &	env,
		FramedSource *	inputSource,
		Boolean	includeADUdescriptors
	)			`[protected]`

Definition at line 111 of file MP3ADU.cpp.

Referenced by createNew().

00114   : FramedFilter(env, inputSource),
00115     fAreEnqueueingMP3Frame(False),
00116     fSegments(new SegmentQueue(True /* because we're MP3->ADU */,
00117                                False /*no descriptors in incoming frames*/)),
00118     fIncludeADUdescriptors(includeADUdescriptors),
00119     fTotalDataSizeBeforePreviousRead(0), fScale(1), fFrameCounter(0) {
00120 }

ADUFromMP3Source::~ADUFromMP3Source ( ) [protected, virtual]

Definition at line 122 of file MP3ADU.cpp.

References fSegments.

00122                                     {
00123   delete fSegments;
00124 }

Member Function Documentation

ADUFromMP3Source * ADUFromMP3Source::createNew	(	UsageEnvironment &	env,
		FramedSource *	inputSource,
		Boolean	includeADUdescriptors = `True`
	)			`[static]`

Definition at line 131 of file MP3ADU.cpp.

References ADUFromMP3Source(), env, FramedFilter::inputSource(), MediaSource::MIMEtype(), Medium::name(), NULL, and UsageEnvironment::setResultMsg().

Referenced by MP3Transcoder::createNew(), and MP3AudioFileServerMediaSubsession::createNewStreamSource().

00133                                                                              {
00134   // The source must be a MPEG audio source:
00135   if (strcmp(inputSource->MIMEtype(), "audio/MPEG") != 0) {
00136     env.setResultMsg(inputSource->name(), " is not an MPEG audio source");
00137     return NULL;
00138   }
00139 
00140   return new ADUFromMP3Source(env, inputSource, includeADUdescriptors);
00141 }

void ADUFromMP3Source::resetInput ( )

Definition at line 143 of file MP3ADU.cpp.

References fSegments, and SegmentQueue::reset().

Referenced by MP3AudioFileServerMediaSubsession::seekStreamSource().

00143                                   {
00144   fSegments->reset();
00145 }

Boolean ADUFromMP3Source::setScaleFactor ( int scale )

Definition at line 147 of file MP3ADU.cpp.

References False, fScale, and True.

Referenced by MP3AudioFileServerMediaSubsession::setStreamSourceScale().

00147                                                   {
00148   if (scale < 1) return False;
00149   fScale = scale;
00150   return True;
00151 }

void ADUFromMP3Source::doGetNextFrame ( ) [private, virtual]

Implements FramedSource.

Definition at line 153 of file MP3ADU.cpp.

References doGetNextFrame1(), SegmentQueue::enqueueNewSegment(), False, fAreEnqueueingMP3Frame, FramedFilter::fInputSource, fSegments, fTotalDataSizeBeforePreviousRead, FramedSource::handleClosure(), SegmentQueue::totalDataSize(), and True.

Referenced by doGetNextFrame1().

00153                                       {
00154   if (!fAreEnqueueingMP3Frame) {
00155     // Arrange to enqueue a new MP3 frame:
00156     fTotalDataSizeBeforePreviousRead = fSegments->totalDataSize();
00157     fAreEnqueueingMP3Frame = True;
00158     fSegments->enqueueNewSegment(fInputSource, this);
00159   } else {
00160     // Deliver an ADU from a previously-read MP3 frame:
00161     fAreEnqueueingMP3Frame = False;
00162 
00163     if (!doGetNextFrame1()) {
00164       // An internal error occurred; act as if our source went away:
00165       FramedSource::handleClosure(this);
00166     }
00167   }
00168 }

char const * ADUFromMP3Source::MIMEtype ( ) const [private, virtual]

Reimplemented from FramedFilter.

Definition at line 127 of file MP3ADU.cpp.

00127                                              {
00128   return "audio/MPA-ROBUST";
00129 }

Boolean ADUFromMP3Source::doGetNextFrame1 ( ) [private]

Definition at line 170 of file MP3ADU.cpp.

References Segment::aduSize, FramedSource::afterGetting(), Segment::backpointer, ADUdescriptor::computeSize(), Segment::dataHere(), Segment::dataStart(), SegmentQueue::dequeue(), doGetNextFrame(), Segment::durationInMicroseconds, Medium::envir(), False, FramedSource::fDurationInMicroseconds, fFrameCounter, FramedSource::fFrameSize, fIncludeADUdescriptors, FramedSource::fMaxSize, FramedSource::fPresentationTime, fScale, fSegments, FramedSource::fTo, fTotalDataSizeBeforePreviousRead, ADUdescriptor::generateDescriptor(), Segment::headerSize, SegmentQueue::headIndex(), SegmentQueue::isEmpty(), SegmentQueue::nextFreeIndex(), SegmentQueue::nextIndex(), NULL, Segment::presentationTime, SegmentQueue::prevIndex(), SegmentQueue::s, Segment::sideInfoSize, and True.

Referenced by doGetNextFrame().

00170                                           {
00171   // First, check whether we have enough previously-read data to output an
00172   // ADU for the last-read MP3 frame:
00173   unsigned tailIndex;
00174   Segment* tailSeg;
00175   Boolean needMoreData;
00176 
00177   if (fSegments->isEmpty()) {
00178     needMoreData = True;
00179     tailSeg = NULL; tailIndex = 0; // unneeded, but stops compiler warnings
00180   } else {
00181     tailIndex = SegmentQueue::prevIndex(fSegments->nextFreeIndex());
00182     tailSeg = &(fSegments->s[tailIndex]);
00183 
00184     needMoreData
00185           = fTotalDataSizeBeforePreviousRead < tailSeg->backpointer // bp points back too far
00186       || tailSeg->backpointer + tailSeg->dataHere() < tailSeg->aduSize; // not enough data
00187   }
00188 
00189   if (needMoreData) {
00190     // We don't have enough data to output an ADU from the last-read MP3
00191     // frame, so need to read another one and try again:
00192     doGetNextFrame();
00193     return True;
00194   }
00195 
00196   // Output an ADU from the tail segment:
00197   fFrameSize = tailSeg->headerSize+tailSeg->sideInfoSize+tailSeg->aduSize;
00198   fPresentationTime = tailSeg->presentationTime;
00199   fDurationInMicroseconds = tailSeg->durationInMicroseconds;
00200   unsigned descriptorSize
00201     = fIncludeADUdescriptors ? ADUdescriptor::computeSize(fFrameSize) : 0;
00202 #ifdef DEBUG
00203   fprintf(stderr, "m->a:outputting ADU %d<-%d, nbr:%d, sis:%d, dh:%d, (descriptor size: %d)\n", tailSeg->aduSize, tailSeg->backpointer, fFrameSize, tailSeg->sideInfoSize, tailSeg->dataHere(), descriptorSize);
00204 #endif
00205   if (descriptorSize + fFrameSize > fMaxSize) {
00206     envir() << "ADUFromMP3Source::doGetNextFrame1(): not enough room ("
00207             << descriptorSize + fFrameSize << ">"
00208             << fMaxSize << ")\n";
00209     fFrameSize = 0;
00210     return False;
00211   }
00212 
00213   unsigned char* toPtr = fTo;
00214   // output the ADU descriptor:
00215   if (fIncludeADUdescriptors) {
00216     fFrameSize += ADUdescriptor::generateDescriptor(toPtr, fFrameSize);
00217   }
00218 
00219   // output header and side info:
00220   memmove(toPtr, tailSeg->dataStart(),
00221           tailSeg->headerSize + tailSeg->sideInfoSize);
00222   toPtr += tailSeg->headerSize + tailSeg->sideInfoSize;
00223 
00224   // go back to the frame that contains the start of our data:
00225   unsigned offset = 0;
00226   unsigned i = tailIndex;
00227   unsigned prevBytes = tailSeg->backpointer;
00228   while (prevBytes > 0) {
00229     i = SegmentQueue::prevIndex(i);
00230     unsigned dataHere = fSegments->s[i].dataHere();
00231     if (dataHere < prevBytes) {
00232       prevBytes -= dataHere;
00233     } else {
00234       offset = dataHere - prevBytes;
00235       break;
00236     }
00237   }
00238 
00239   // dequeue any segments that we no longer need:
00240   while (fSegments->headIndex() != i) {
00241     fSegments->dequeue(); // we're done with it
00242   }
00243 
00244   unsigned bytesToUse = tailSeg->aduSize;
00245   while (bytesToUse > 0) {
00246     Segment& seg = fSegments->s[i];
00247     unsigned char* fromPtr
00248       = &seg.dataStart()[seg.headerSize + seg.sideInfoSize + offset];
00249     unsigned dataHere = seg.dataHere() - offset;
00250     unsigned bytesUsedHere = dataHere < bytesToUse ? dataHere : bytesToUse;
00251     memmove(toPtr, fromPtr, bytesUsedHere);
00252     bytesToUse -= bytesUsedHere;
00253     toPtr += bytesUsedHere;
00254     offset = 0;
00255     i = SegmentQueue::nextIndex(i);
00256   }
00257 
00258 
00259   if (fFrameCounter++%fScale == 0) {
00260     // Call our own 'after getting' function.  Because we're not a 'leaf'
00261     // source, we can call this directly, without risking infinite recursion.
00262     afterGetting(this);
00263   } else {
00264     // Don't use this frame; get another one:
00265     doGetNextFrame();
00266   }
00267 
00268   return True;
00269 }

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(), MP3ADUinterleaver::createNew(), MP3FromADUSource::createNew(), 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; }

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.

ADUFromMP3Source 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