live: MP3FromADUSource 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.

MP3FromADUSource::MP3FromADUSource	(	UsageEnvironment &	env,
		FramedSource *	inputSource,
		Boolean	includeADUdescriptors
	)			`[protected]`

Definition at line 274 of file MP3ADU.cpp.

Referenced by createNew().

00277   : FramedFilter(env, inputSource),
00278     fAreEnqueueingADU(False),
00279     fSegments(new SegmentQueue(False /* because we're ADU->MP3 */,
00280                                includeADUdescriptors)),
00281     fIncludeADUdescriptors(includeADUdescriptors) {
00282 }

MP3FromADUSource::~MP3FromADUSource ( ) [protected, virtual]

Definition at line 284 of file MP3ADU.cpp.

References fSegments.

00284                                     {
00285   delete fSegments;
00286 }

MP3FromADUSource * MP3FromADUSource::createNew	(	UsageEnvironment &	env,
		FramedSource *	inputSource,
		Boolean	includeADUdescriptors = `True`
	)			`[static]`

Definition at line 292 of file MP3ADU.cpp.

References env, FramedFilter::inputSource(), MediaSource::MIMEtype(), MP3FromADUSource(), Medium::name(), NULL, and UsageEnvironment::setResultMsg().

Referenced by MP3AudioFileServerMediaSubsession::createNewStreamSourceCommon(), MediaSubsession::createSourceObjects(), and main().

00294                                                                              {
00295   // The source must be an MP3 ADU source:
00296   if (strcmp(inputSource->MIMEtype(), "audio/MPA-ROBUST") != 0) {
00297     env.setResultMsg(inputSource->name(), " is not an MP3 ADU source");
00298     return NULL;
00299   }
00300 
00301   return new MP3FromADUSource(env, inputSource, includeADUdescriptors);
00302 }

void MP3FromADUSource::doGetNextFrame ( ) [private, virtual]

Implements FramedSource.

Definition at line 305 of file MP3ADU.cpp.

References FramedSource::afterGetting(), Segment::buf, SegmentQueue::enqueueNewSegment(), False, fAreEnqueueingADU, FramedFilter::fInputSource, fSegments, generateFrameFromHeadADU(), insertDummyADUsIfNecessary(), needToGetAnADU(), our_random(), and True.

00305                                       {
00306   if (fAreEnqueueingADU) insertDummyADUsIfNecessary();
00307   fAreEnqueueingADU = False;
00308 
00309   if (needToGetAnADU()) {
00310     // Before returning a frame, we must enqueue at least one ADU:
00311 #ifdef TEST_LOSS
00312   NOTE: This code no longer works, because it uses synchronous reads,
00313   which are no longer supported.
00314     static unsigned const framesPerPacket = 10;
00315     static unsigned const frameCount = 0;
00316     static Boolean packetIsLost;
00317     while (1) {
00318       if ((frameCount++)%framesPerPacket == 0) {
00319         packetIsLost = (our_random()%10 == 0); // simulate 10% packet loss #####
00320       }
00321 
00322       if (packetIsLost) {
00323         // Read and discard the next input frame (that would be part of
00324         // a lost packet):
00325         Segment dummySegment;
00326         unsigned numBytesRead;
00327         struct timeval presentationTime;
00328         // (this works only if the source can be read synchronously)
00329         fInputSource->syncGetNextFrame(dummySegment.buf,
00330                                        sizeof dummySegment.buf, numBytesRead,
00331                                        presentationTime);
00332       } else {
00333         break; // from while (1)
00334       }
00335     }
00336 #endif
00337 
00338     fAreEnqueueingADU = True;
00339     fSegments->enqueueNewSegment(fInputSource, this);
00340   } else {
00341     // Return a frame now:
00342     generateFrameFromHeadADU();
00343         // sets fFrameSize, fPresentationTime, and fDurationInMicroseconds
00344 
00345     // Call our own 'after getting' function.  Because we're not a 'leaf'
00346     // source, we can call this directly, without risking infinite recursion.
00347     afterGetting(this);
00348   }
00349 }

char const * MP3FromADUSource::MIMEtype ( ) const [private, virtual]

Reimplemented from FramedFilter.

Definition at line 288 of file MP3ADU.cpp.

00288                                              {
00289   return "audio/MPEG";
00290 }

Boolean MP3FromADUSource::needToGetAnADU ( ) [private]

Definition at line 351 of file MP3ADU.cpp.

References Segment::aduSize, Segment::backpointer, Segment::dataHere(), False, fSegments, SegmentQueue::headIndex(), SegmentQueue::headSegment(), SegmentQueue::isEmpty(), SegmentQueue::nextFreeIndex(), SegmentQueue::nextIndex(), SegmentQueue::s, and True.

Referenced by doGetNextFrame().

00351                                          {
00352   // Check whether we need to first enqueue a new ADU before we
00353   // can generate a frame for our head ADU.
00354   Boolean needToEnqueue = True;
00355 
00356   if (!fSegments->isEmpty()) {
00357     unsigned index = fSegments->headIndex();
00358     Segment* seg = &(fSegments->headSegment());
00359     int const endOfHeadFrame = (int) seg->dataHere();
00360     unsigned frameOffset = 0;
00361 
00362     while (1) {
00363       int endOfData = frameOffset - seg->backpointer + seg->aduSize;
00364       if (endOfData >= endOfHeadFrame) {
00365         // We already have enough data to generate a frame
00366         needToEnqueue = False;
00367         break;
00368       }
00369 
00370       frameOffset += seg->dataHere();
00371       index = SegmentQueue::nextIndex(index);
00372       if (index == fSegments->nextFreeIndex()) break;
00373       seg = &(fSegments->s[index]);
00374     }
00375   }
00376 
00377   return needToEnqueue;
00378 }

void MP3FromADUSource::insertDummyADUsIfNecessary ( ) [private]

Definition at line 380 of file MP3ADU.cpp.

References Segment::aduSize, Segment::backpointer, Segment::dataHere(), fSegments, SegmentQueue::headIndex(), SegmentQueue::insertDummyBeforeTail(), SegmentQueue::isEmpty(), SegmentQueue::nextFreeIndex(), SegmentQueue::prevIndex(), and SegmentQueue::s.

Referenced by doGetNextFrame().

00380                                                   {
00381   if (fSegments->isEmpty()) return; // shouldn't happen
00382 
00383   // The tail segment (ADU) is assumed to have been recently
00384   // enqueued.  If its backpointer would overlap the data
00385   // of the previous ADU, then we need to insert one or more
00386   // empty, 'dummy' ADUs ahead of it.  (This situation should occur
00387   // only if an intermediate ADU was lost.)
00388 
00389   unsigned tailIndex
00390     = SegmentQueue::prevIndex(fSegments->nextFreeIndex());
00391   Segment* tailSeg = &(fSegments->s[tailIndex]);
00392 
00393   while (1) {
00394     unsigned prevADUend; // relative to the start of the new ADU
00395     if (fSegments->headIndex() != tailIndex) {
00396       // there is a previous segment
00397       unsigned prevIndex = SegmentQueue::prevIndex(tailIndex);
00398       Segment& prevSegment = fSegments->s[prevIndex];
00399       prevADUend = prevSegment.dataHere() + prevSegment.backpointer;
00400       if (prevSegment.aduSize > prevADUend) {
00401         // shouldn't happen if the previous ADU was well-formed
00402         prevADUend = 0;
00403       } else {
00404         prevADUend -= prevSegment.aduSize;
00405       }
00406     } else {
00407       prevADUend = 0;
00408     }
00409 
00410     if (tailSeg->backpointer > prevADUend) {
00411       // We need to insert a dummy ADU in front of the tail
00412 #ifdef DEBUG
00413       fprintf(stderr, "a->m:need to insert a dummy ADU (%d, %d, %d) [%d, %d]\n", tailSeg->backpointer, prevADUend, tailSeg->dataHere(), fSegments->headIndex(), fSegments->nextFreeIndex());
00414 #endif
00415       tailIndex = fSegments->nextFreeIndex();
00416       if (!fSegments->insertDummyBeforeTail(prevADUend)) return;
00417       tailSeg = &(fSegments->s[tailIndex]);
00418     } else {
00419       break; // no more dummy ADUs need to be inserted
00420     }
00421   }
00422 }

Boolean MP3FromADUSource::generateFrameFromHeadADU ( ) [private]

Definition at line 424 of file MP3ADU.cpp.

References Segment::aduSize, Segment::backpointer, Segment::dataHere(), Segment::dataStart(), SegmentQueue::dequeue(), Segment::descriptorSize, Segment::durationInMicroseconds, False, FramedSource::fDurationInMicroseconds, FramedSource::fFrameSize, FramedSource::fPresentationTime, Segment::frameSize, fSegments, FramedSource::fTo, Segment::headerSize, SegmentQueue::headIndex(), SegmentQueue::headSegment(), SegmentQueue::isEmpty(), SegmentQueue::nextFreeIndex(), SegmentQueue::nextIndex(), Segment::presentationTime, SegmentQueue::s, Segment::sideInfoSize, and True.

Referenced by doGetNextFrame().

00424                                                    {
00425     // Output a frame for the head ADU:
00426     if (fSegments->isEmpty()) return False;
00427     unsigned index = fSegments->headIndex();
00428     Segment* seg = &(fSegments->headSegment());
00429 #ifdef DEBUG
00430     fprintf(stderr, "a->m:outputting frame for %d<-%d (fs %d, dh %d), (descriptorSize: %d)\n", seg->aduSize, seg->backpointer, seg->frameSize, seg->dataHere(), seg->descriptorSize);
00431 #endif
00432     unsigned char* toPtr = fTo;
00433 
00434     // output header and side info:
00435     fFrameSize = seg->frameSize;
00436     fPresentationTime = seg->presentationTime;
00437     fDurationInMicroseconds = seg->durationInMicroseconds;
00438     memmove(toPtr, seg->dataStart(), seg->headerSize + seg->sideInfoSize);
00439     toPtr += seg->headerSize + seg->sideInfoSize;
00440 
00441     // zero out the rest of the frame, in case ADU data doesn't fill it all in
00442     unsigned bytesToZero = seg->dataHere();
00443     for (unsigned i = 0; i < bytesToZero; ++i) {
00444       toPtr[i] = '\0';
00445     }
00446 
00447     // Fill in the frame with appropriate ADU data from this and
00448     // subsequent ADUs:
00449     unsigned frameOffset = 0;
00450     unsigned toOffset = 0;
00451     unsigned const endOfHeadFrame = seg->dataHere();
00452 
00453     while (toOffset < endOfHeadFrame) {
00454       int startOfData = frameOffset - seg->backpointer;
00455       if (startOfData > (int)endOfHeadFrame) break; // no more ADUs needed
00456 
00457       int endOfData = startOfData + seg->aduSize;
00458       if (endOfData > (int)endOfHeadFrame) {
00459         endOfData = endOfHeadFrame;
00460       }
00461 
00462       unsigned fromOffset;
00463       if (startOfData <= (int)toOffset) {
00464         fromOffset = toOffset - startOfData;
00465         startOfData = toOffset;
00466         if (endOfData < startOfData) endOfData = startOfData;
00467       } else {
00468         fromOffset = 0;
00469 
00470         // we may need some padding bytes beforehand
00471         unsigned bytesToZero = startOfData - toOffset;
00472 #ifdef DEBUG
00473         if (bytesToZero > 0) fprintf(stderr, "a->m:outputting %d zero bytes (%d, %d, %d, %d)\n", bytesToZero, startOfData, toOffset, frameOffset, seg->backpointer);
00474 #endif
00475         toOffset += bytesToZero;
00476       }
00477 
00478       unsigned char* fromPtr
00479         = &seg->dataStart()[seg->headerSize + seg->sideInfoSize + fromOffset];
00480       unsigned bytesUsedHere = endOfData - startOfData;
00481 #ifdef DEBUG
00482       if (bytesUsedHere > 0) fprintf(stderr, "a->m:outputting %d bytes from %d<-%d\n", bytesUsedHere, seg->aduSize, seg->backpointer);
00483 #endif
00484       memmove(toPtr + toOffset, fromPtr, bytesUsedHere);
00485       toOffset += bytesUsedHere;
00486 
00487       frameOffset += seg->dataHere();
00488       index = SegmentQueue::nextIndex(index);
00489       if (index == fSegments->nextFreeIndex()) break;
00490       seg = &(fSegments->s[index]);
00491     }
00492 
00493     fSegments->dequeue();
00494 
00495     return True;
00496 }

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

Definition at line 30 of file FramedFilter.hh.

References FramedFilter::fInputSource.

00030 { return fInputSource; }

void FramedFilter::reassignInputSource ( FramedSource * newInputSource ) [inline, inherited]

Definition at line 32 of file FramedFilter.hh.

References FramedFilter::fInputSource.

Referenced by T140TextRTPSink::continuePlaying(), H264VideoRTPSink::continuePlaying(), and FramedFilter::detachInputSource().

00032 { fInputSource = newInputSource; }

void FramedFilter::detachInputSource ( ) [inline, inherited]

Definition at line 35 of file FramedFilter.hh.

References NULL, and FramedFilter::reassignInputSource().

Referenced by H264FUAFragmenter::~H264FUAFragmenter(), and T140IdleFilter::~T140IdleFilter().

00035 { reassignInputSource(NULL); }

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, MPEG2TransportStreamTrickModeFilter, T140IdleFilter, and QCELPDeinterleaver.

Definition at line 49 of file FramedFilter.cpp.

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

Referenced by T140IdleFilter::doStopGettingFrames(), 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 65 of file MediaSource.cpp.

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

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

00067                                                               {
00068   resultSource = NULL; // unless we succeed
00069 
00070   Medium* medium;
00071   if (!Medium::lookupByName(env, sourceName, medium)) return False;
00072 
00073   if (!medium->isSource()) {
00074     env.setResultMsg(sourceName, " is not a media source");
00075     return False;
00076   }
00077 
00078   resultSource = (MediaSource*)medium;
00079   return True;
00080 }

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

Definition at line 41 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().

00042                                                          {
00043   resultMedium = MediaLookupTable::ourMedia(env)->lookup(mediumName);
00044   if (resultMedium == NULL) {
00045     env.setResultMsg("Medium ", mediumName, " does not exist");
00046     return False;
00047   }
00048 
00049   return True;
00050 }

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, UsageEnvironment::internalError(), 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     envir().internalError();
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 StreamReplicator::deactivateStreamReplica(), QCELPDeinterleaver::doStopGettingFrames(), 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 T140IdleFilter::afterGettingFrame(), afterPlaying(), InputESSourceRecord::askForNewData(), MPEG2TransportStreamFromESSource::awaitNewBuffer(), MatroskaFileParser::continueParsing(), QuickTimeFileSink::continuePlaying(), AVIFileSink::continuePlaying(), StreamReplicator::deactivateStreamReplica(), DeviceSource::deliverFrame(), MatroskaFileParser::deliverFrameWithinBlock(), T140IdleFilter::doGetNextFrame(), QCELPDeinterleaver::doGetNextFrame(), AMRDeinterleaver::doGetNextFrame(), WAVAudioFileSource::fileReadableHandler(), ByteStreamFileSource::fileReadableHandler(), StreamReplicator::getNextFrame(), BasicUDPSource::incomingPacketHandler1(), and TCPStreamSink::processBuffer().

00060 {return fIsCurrentlyAwaitingData;}

void FramedSource::afterGetting ( FramedSource * source ) [static, 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::isDVVideoStreamFramer ( ) const [virtual, inherited]

Reimplemented in DVVideoStreamFramer.

Definition at line 55 of file MediaSource.cpp.

References False.

Referenced by DVVideoRTPSink::sourceIsCompatibleWithUs().

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

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

Reimplemented in JPEGVideoSource.

Definition at line 58 of file MediaSource.cpp.

References False.

Referenced by JPEGVideoRTPSink::sourceIsCompatibleWithUs().

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

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

Reimplemented in AMRAudioSource.

Definition at line 61 of file MediaSource.cpp.

References False.

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

00061                                             {
00062   return False; // default implementation
00063 }

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

Definition at line 52 of file Media.cpp.

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

Referenced by afterPlaying(), Medium::close(), closeMediaSinks(), OnDemandServerMediaSubsession::closeStreamSource(), continueAfterTEARDOWN(), WAVAudioFileSource::createNew(), QuickTimeFileSink::createNew(), QCELPAudioRTPSource::createNew(), MP3FileSource::createNew(), AVIFileSink::createNew(), AMRAudioRTPSource::createNew(), WAVAudioFileServerMediaSubsession::createNewStreamSource(), MPEG1or2DemuxedServerMediaSubsession::createNewStreamSource(), MediaSubsession::deInitiate(), RTSPServerSupportingHTTPStreaming::RTSPClientSessionSupportingHTTPStreaming::handleHTTPCmd_StreamingGET(), MediaSubsession::initiate(), MPEG1or2ProgramStreamFileDuration(), MPEG1or2Demux::noteElementaryStreamDeletion(), ByteStreamMultiFileSource::onSourceClosure1(), StreamState::reclaim(), RTSPServer::removeServerMediaSession(), OnDemandServerMediaSubsession::sdpLines(), shutdownStream(), subsessionAfterPlaying(), ClientTrickPlayState::updateStateOnScaleChange(), AMRDeinterleaver::~AMRDeinterleaver(), ByteStreamMultiFileSource::~ByteStreamMultiFileSource(), DarwinInjector::~DarwinInjector(), FramedFilter::~FramedFilter(), H264VideoRTPSink::~H264VideoRTPSink(), InputESSourceRecord::~InputESSourceRecord(), MatroskaFileParser::~MatroskaFileParser(), MatroskaFileServerDemux::~MatroskaFileServerDemux(), MPEG1or2Demux::~MPEG1or2Demux(), MPEG1or2FileServerDemux::~MPEG1or2FileServerDemux(), MPEG2TransportFileServerMediaSubsession::~MPEG2TransportFileServerMediaSubsession(), MPEG2TransportStreamFromPESSource::~MPEG2TransportStreamFromPESSource(), ProxyServerMediaSession::~ProxyServerMediaSession(), RTSPServerSupportingHTTPStreaming::RTSPClientSessionSupportingHTTPStreaming::~RTSPClientSessionSupportingHTTPStreaming(), ServerMediaSession::~ServerMediaSession(), ServerMediaSubsession::~ServerMediaSubsession(), StreamClientState::~StreamClientState(), StreamReplicator::~StreamReplicator(), and T140TextRTPSink::~T140TextRTPSink().

00052                                                           {
00053   MediaLookupTable::ourMedia(env)->remove(name);
00054 }

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

Definition at line 56 of file Media.cpp.

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

00056                                  {
00057   if (medium == NULL) return;
00058 
00059   close(medium->envir(), medium->name());
00060 }

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

Definition at line 59 of file Media.hh.

References Medium::fEnviron.

00059 {return fEnviron;}

char const* Medium::name ( ) const [inline, inherited]

Definition at line 61 of file Media.hh.

References Medium::fMediumName.

Referenced by QuickTimeFileSink::addAtom_hdlr2(), Medium::close(), MP3ADUTranscoder::createNew(), createNew(), ADUFromMP3Source::createNew(), and MP3FileSource::initializeStream().

00061 {return fMediumName;}

Boolean Medium::isSink ( ) const [virtual, inherited]

Reimplemented in MediaSink.

Definition at line 66 of file Media.cpp.

References False.

Referenced by MediaSink::lookupByName().

00066                              {
00067   return False; // default implementation
00068 }

Boolean Medium::isRTCPInstance ( ) const [virtual, inherited]

Reimplemented in RTCPInstance.

Definition at line 70 of file Media.cpp.

References False.

Referenced by RTCPInstance::lookupByName().

00070                                      {
00071   return False; // default implementation
00072 }

Boolean Medium::isRTSPClient ( ) const [virtual, inherited]

Reimplemented in RTSPClient.

Definition at line 74 of file Media.cpp.

References False.

Referenced by RTSPClient::lookupByName().

00074                                    {
00075   return False; // default implementation
00076 }

Boolean Medium::isRTSPServer ( ) const [virtual, inherited]

Reimplemented in RTSPServer.

Definition at line 78 of file Media.cpp.

References False.

Referenced by RTSPServer::lookupByName().

00078                                    {
00079   return False; // default implementation
00080 }

Boolean Medium::isMediaSession ( ) const [virtual, inherited]

Reimplemented in MediaSession.

Definition at line 82 of file Media.cpp.

References False.

Referenced by MediaSession::lookupByName().

00082                                      {
00083   return False; // default implementation
00084 }

Boolean Medium::isServerMediaSession ( ) const [virtual, inherited]

Reimplemented in ServerMediaSession.

Definition at line 86 of file Media.cpp.

References False.

Referenced by ServerMediaSession::lookupByName().

00086                                            {
00087   return False; // default implementation
00088 }

Boolean Medium::isDarwinInjector ( ) const [virtual, inherited]

Reimplemented in DarwinInjector.

Definition at line 90 of file Media.cpp.

References False.

Referenced by DarwinInjector::lookupByName().

00090                                        {
00091   return False; // default implementation
00092 }

TaskToken& Medium::nextTask ( ) [inline, protected, inherited]

friend class MediaLookupTable [friend, inherited]

Definition at line 74 of file Media.hh.

Boolean MP3FromADUSource::fAreEnqueueingADU [private]

Definition at line 90 of file MP3ADU.hh.

Referenced by doGetNextFrame().

class SegmentQueue* MP3FromADUSource::fSegments [private]

Definition at line 91 of file MP3ADU.hh.

Referenced by doGetNextFrame(), generateFrameFromHeadADU(), insertDummyADUsIfNecessary(), needToGetAnADU(), and ~MP3FromADUSource().

Boolean MP3FromADUSource::fIncludeADUdescriptors [private]

Definition at line 92 of file MP3ADU.hh.

FramedSource* FramedFilter::fInputSource [protected, inherited]

Definition at line 49 of file FramedFilter.hh.

Referenced by QCELPDeinterleaver::afterGettingFrame1(), MPEG2TransportStreamFramer::afterGettingFrame1(), MPEG2TransportStreamFramer::changeInputSource(), EndianSwap16::doGetNextFrame(), HostFromNetworkOrder16::doGetNextFrame(), NetworkFromHostOrder16::doGetNextFrame(), PCMFromuLawAudioSource::doGetNextFrame(), uLawFromPCMAudioSource::doGetNextFrame(), T140IdleFilter::doGetNextFrame(), QCELPDeinterleaver::doGetNextFrame(), MPEG4VideoStreamDiscreteFramer::doGetNextFrame(), MPEG2TransportStreamFramer::doGetNextFrame(), MPEG2IFrameIndexFromTransportStream::doGetNextFrame(), MPEG1or2VideoStreamDiscreteFramer::doGetNextFrame(), MP3ADUTranscoder::doGetNextFrame(), MP3ADUdeinterleaver::doGetNextFrame(), MP3ADUinterleaver::doGetNextFrame(), doGetNextFrame(), ADUFromMP3Source::doGetNextFrame(), H264VideoStreamDiscreteFramer::doGetNextFrame(), H264FUAFragmenter::doGetNextFrame(), QCELPDeinterleaver::doStopGettingFrames(), FramedFilter::doStopGettingFrames(), MPEG2TransportStreamTrickModeFilter::forgetInputSource(), DVVideoStreamFramer::getAndDeliverData(), MP3ADUTranscoder::getAttributes(), FramedFilter::getAttributes(), DVVideoStreamFramer::getProfile(), FramedFilter::inputSource(), FramedFilter::MIMEtype(), MPEG2TransportStreamTrickModeFilter::readTransportPacket(), FramedFilter::reassignInputSource(), MPEG2TransportStreamTrickModeFilter::seekToTransportPacket(), and FramedFilter::~FramedFilter().

unsigned char* FramedSource::fTo [protected, inherited]

Definition at line 74 of file FramedSource.hh.

unsigned FramedSource::fMaxSize [protected, inherited]

Definition at line 75 of file FramedSource.hh.

unsigned FramedSource::fFrameSize [protected, inherited]

Definition at line 76 of file FramedSource.hh.

Referenced by FramedSource::afterGetting(), StreamReplicator::afterGettingFrame(), ByteStreamMultiFileSource::afterGettingFrame(), EndianSwap16::afterGettingFrame1(), HostFromNetworkOrder16::afterGettingFrame1(), NetworkFromHostOrder16::afterGettingFrame1(), PCMFromuLawAudioSource::afterGettingFrame1(), uLawFromPCMAudioSource::afterGettingFrame1(), MPEG2TransportStreamFramer::afterGettingFrame1(), MPEG1or2DemuxedElementaryStream::afterGettingFrame1(), MP3ADUTranscoder::afterGettingFrame1(), H264VideoStreamDiscreteFramer::afterGettingFrame1(), MPEG2TransportStreamTrickModeFilter::attemptDeliveryToClient(), MPEGVideoStreamFramer::continueReadProcessing(), MPEG1or2AudioStreamFramer::continueReadProcessing(), H263plusVideoStreamFramer::continueReadProcessing(), StreamReplica::copyReceivedFrame(), MPEG2TransportStreamMultiplexor::deliverDataToClient(), T140IdleFilter::deliverEmptyFrame(), DeviceSource::deliverFrame(), T140IdleFilter::deliverFromBuffer(), MPEG2IFrameIndexFromTransportStream::deliverIndexRecord(), WAVAudioFileSource::doGetNextFrame(), QCELPDeinterleaver::doGetNextFrame(), MultiFramedRTPSource::doGetNextFrame(), MPEG2TransportStreamTrickModeFilter::doGetNextFrame(), MPEG2TransportStreamFramer::doGetNextFrame(), H264FUAFragmenter::doGetNextFrame(), DVVideoStreamFramer::doGetNextFrame(), ByteStreamMemoryBufferSource::doGetNextFrame(), AMRDeinterleaver::doGetNextFrame(), AMRAudioFileSource::doGetNextFrame(), ADTSAudioFileSource::doGetNextFrame(), MultiFramedRTPSource::doGetNextFrame1(), MP3FileSource::doGetNextFrame1(), ADUFromMP3Source::doGetNextFrame1(), WAVAudioFileSource::doReadFromFile(), ByteStreamFileSource::doReadFromFile(), MatroskaDemuxedTrack::frameSize(), generateFrameFromHeadADU(), DVVideoStreamFramer::getAndDeliverData(), BasicUDPSource::incomingPacketHandler1(), AC3AudioStreamFramer::parseNextFrame(), MP3ADUdeinterleaver::releaseOutgoingFrame(), and MP3ADUinterleaver::releaseOutgoingFrame().

unsigned FramedSource::fNumTruncatedBytes [protected, inherited]

Definition at line 77 of file FramedSource.hh.

struct timeval FramedSource::fPresentationTime [read, protected, inherited]

Definition at line 78 of file FramedSource.hh.

unsigned FramedSource::fDurationInMicroseconds [protected, inherited]

Definition at line 79 of file FramedSource.hh.


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	reassignInputSource (FramedSource *newInputSource)
void	detachInputSource ()
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	isDVVideoStreamFramer () 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 MP3FromADUSource *	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	afterGetting (FramedSource *source)
static void	close (UsageEnvironment &env, char const *mediumName)
static void	close (Medium *medium)
Protected Member Functions
	MP3FromADUSource (UsageEnvironment &env, FramedSource *inputSource, Boolean includeADUdescriptors)
virtual	~MP3FromADUSource ()
virtual void	getAttributes () const
virtual void	doStopGettingFrames ()
TaskToken &	nextTask ()
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	needToGetAnADU ()
void	insertDummyADUsIfNecessary ()
Boolean	generateFrameFromHeadADU ()
Private Attributes
Boolean	fAreEnqueueingADU
SegmentQueue *	fSegments
Boolean	fIncludeADUdescriptors
Friends
class	MediaLookupTable

MP3FromADUSource Class Reference

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Friends

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Field Documentation