live: JPEGVideoRTPSink Class Reference

typedef void( MediaSink::afterPlayingFunc)(void *clientData) [inherited]

Definition at line 33 of file MediaSink.hh.

JPEGVideoRTPSink::JPEGVideoRTPSink	(	UsageEnvironment &	env,
		Groupsock *	RTPgs
	)			`[protected]`

Definition at line 25 of file JPEGVideoRTPSink.cpp.

Referenced by createNew().

00026   : VideoRTPSink(env, RTPgs, 26, 90000, "JPEG") {
00027 }

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

Definition at line 29 of file JPEGVideoRTPSink.cpp.

00029                                     {
00030 }

JPEGVideoRTPSink * JPEGVideoRTPSink::createNew	(	UsageEnvironment &	env,
		Groupsock *	RTPgs
	)			`[static]`

Definition at line 33 of file JPEGVideoRTPSink.cpp.

References env, and JPEGVideoRTPSink().

00033                                                                    {
00034   return new JPEGVideoRTPSink(env, RTPgs);
00035 }

Boolean JPEGVideoRTPSink::sourceIsCompatibleWithUs ( MediaSource & source ) [private, virtual]

Reimplemented from MediaSink.

Definition at line 37 of file JPEGVideoRTPSink.cpp.

References MediaSource::isJPEGVideoSource(), and MediaSink::source().

00037                                                                       {
00038   return source.isJPEGVideoSource();
00039 }

void JPEGVideoRTPSink::doSpecialFrameHandling	(	unsigned	fragmentationOffset,
		unsigned char *	frameStart,
		unsigned	numBytesInFrame,
		struct timeval	frameTimestamp,
		unsigned	numRemainingBytes
	)			`[private, virtual]`

Reimplemented from MultiFramedRTPSink.

Definition at line 49 of file JPEGVideoRTPSink.cpp.

References MediaSink::fSource, NULL, MultiFramedRTPSink::setMarkerBit(), MultiFramedRTPSink::setSpecialHeaderBytes(), MultiFramedRTPSink::setTimestamp(), and MediaSink::source().

00053                                                      {
00054   // Our source is known to be a JPEGVideoSource
00055   JPEGVideoSource* source = (JPEGVideoSource*)fSource;
00056   if (source == NULL) return; // sanity check
00057 
00058   u_int8_t mainJPEGHeader[8]; // the special header
00059 
00060   mainJPEGHeader[0] = 0; // Type-specific
00061   mainJPEGHeader[1] = fragmentationOffset >> 16;
00062   mainJPEGHeader[2] = fragmentationOffset >> 8;
00063   mainJPEGHeader[3] = fragmentationOffset;
00064   mainJPEGHeader[4] = source->type();
00065   mainJPEGHeader[5] = source->qFactor();
00066   mainJPEGHeader[6] = source->width();
00067   mainJPEGHeader[7] = source->height();
00068   setSpecialHeaderBytes(mainJPEGHeader, sizeof mainJPEGHeader);
00069 
00070   if (fragmentationOffset == 0 && source->qFactor() >= 128) {
00071     // There is also a Quantization Header:
00072     u_int8_t precision;
00073     u_int16_t length;
00074     u_int8_t const* quantizationTables
00075       = source->quantizationTables(precision, length);
00076 
00077     unsigned const quantizationHeaderSize = 4 + length;
00078     u_int8_t* quantizationHeader = new u_int8_t[quantizationHeaderSize];
00079 
00080     quantizationHeader[0] = 0; // MBZ
00081     quantizationHeader[1] = precision;
00082     quantizationHeader[2] = length >> 8;
00083     quantizationHeader[3] = length&0xFF;
00084     if (quantizationTables != NULL) { // sanity check
00085       for (u_int16_t i = 0; i < length; ++i) {
00086         quantizationHeader[4+i] = quantizationTables[i];
00087       }
00088     }
00089 
00090     setSpecialHeaderBytes(quantizationHeader, quantizationHeaderSize,
00091                           sizeof mainJPEGHeader /* start position */);
00092     delete[] quantizationHeader;
00093   }
00094 
00095   if (numRemainingBytes == 0) {
00096     // This packet contains the last (or only) fragment of the frame.
00097     // Set the RTP 'M' ('marker') bit:
00098     setMarkerBit();
00099   }
00100 
00101   // Also set the RTP timestamp:
00102   setTimestamp(frameTimestamp);
00103 }

Boolean JPEGVideoRTPSink::frameCanAppearAfterPacketStart	(	unsigned char const *	frameStart,
		unsigned	numBytesInFrame
	)			const `[private, virtual]`

Reimplemented from MultiFramedRTPSink.

Definition at line 42 of file JPEGVideoRTPSink.cpp.

References False.

00043                                                                      {
00044   // A packet can contain only one frame
00045   return False;
00046 }

unsigned JPEGVideoRTPSink::specialHeaderSize ( ) const [private, virtual]

Reimplemented from MultiFramedRTPSink.

Definition at line 106 of file JPEGVideoRTPSink.cpp.

References MultiFramedRTPSink::curFragmentationOffset(), MediaSink::fSource, NULL, and MediaSink::source().

00106                                                    {
00107   // Our source is known to be a JPEGVideoSource
00108   JPEGVideoSource* source = (JPEGVideoSource*)fSource;
00109   if (source == NULL) return 0; // sanity check
00110 
00111   unsigned headerSize = 8; // by default
00112 
00113   if (curFragmentationOffset() == 0 && source->qFactor() >= 128) {
00114     // There is also a Quantization Header:
00115     u_int8_t dummy;
00116     u_int16_t quantizationTablesSize;
00117     (void)(source->quantizationTables(dummy, quantizationTablesSize));
00118 
00119     headerSize += 4 + quantizationTablesSize;
00120   }
00121 
00122   // Note: We assume that there are no 'restart markers'
00123 
00124   return headerSize;
00125 }

void MultiFramedRTPSink::setPacketSizes	(	unsigned	preferredPacketSize,
		unsigned	maxPacketSize
	)			`[inherited]`

Definition at line 27 of file MultiFramedRTPSink.cpp.

References MultiFramedRTPSink::fOurMaxPacketSize, and MultiFramedRTPSink::fOutBuf.

Referenced by MultiFramedRTPSink::MultiFramedRTPSink().

00028                                                                 {
00029   if (preferredPacketSize > maxPacketSize || preferredPacketSize == 0) return;
00030       // sanity check
00031 
00032   delete fOutBuf;
00033   fOutBuf = new OutPacketBuffer(preferredPacketSize, maxPacketSize);
00034   fOurMaxPacketSize = maxPacketSize; // save value, in case subclasses need it
00035 }

Boolean MultiFramedRTPSink::allowFragmentationAfterStart ( ) const [protected, virtual, inherited]

Reimplemented in MPEG1or2VideoRTPSink, and MPEG4ESVideoRTPSink.

Definition at line 68 of file MultiFramedRTPSink.cpp.

References False.

Referenced by MultiFramedRTPSink::afterGettingFrame1().

00068                                                                {
00069   return False; // by default
00070 }

Boolean MultiFramedRTPSink::allowOtherFramesAfterLastFragment ( ) const [protected, virtual, inherited]

Definition at line 72 of file MultiFramedRTPSink.cpp.

References False.

Referenced by MultiFramedRTPSink::afterGettingFrame1().

00072                                                                     {
00073   return False; // by default
00074 }

unsigned MultiFramedRTPSink::frameSpecificHeaderSize ( ) const [protected, virtual, inherited]

Definition at line 87 of file MultiFramedRTPSink.cpp.

Referenced by MultiFramedRTPSink::isTooBigForAPacket(), MultiFramedRTPSink::packFrame(), and MultiFramedRTPSink::sendPacketIfNecessary().

00087                                                            {
00088   // default implementation: Assume no frame-specific header:
00089   return 0;
00090 }

Boolean MultiFramedRTPSink::isFirstPacket ( ) const [inline, protected, inherited]

Definition at line 65 of file MultiFramedRTPSink.hh.

References MultiFramedRTPSink::fIsFirstPacket.

Referenced by MPEG1or2AudioRTPSink::doSpecialFrameHandling(), and AMRAudioRTPSink::doSpecialFrameHandling().

00065 { return fIsFirstPacket; }

Boolean MultiFramedRTPSink::isFirstFrameInPacket ( ) const [inline, protected, inherited]

Definition at line 66 of file MultiFramedRTPSink.hh.

References MultiFramedRTPSink::fNumFramesUsedSoFar.

Referenced by MultiFramedRTPSink::doSpecialFrameHandling(), MPEG1or2VideoRTPSink::doSpecialFrameHandling(), MPEG1or2AudioRTPSink::doSpecialFrameHandling(), and AMRAudioRTPSink::doSpecialFrameHandling().

00066 { return fNumFramesUsedSoFar == 0; }

Boolean MultiFramedRTPSink::curFragmentationOffset ( ) const [inline, protected, inherited]

Definition at line 67 of file MultiFramedRTPSink.hh.

References MultiFramedRTPSink::fCurFragmentationOffset.

Referenced by MultiFramedRTPSink::afterGettingFrame1(), MP3ADURTPSink::specialHeaderSize(), specialHeaderSize(), and H263plusVideoRTPSink::specialHeaderSize().

00067 { return fCurFragmentationOffset; }

void MultiFramedRTPSink::setMarkerBit ( ) [protected, inherited]

Definition at line 92 of file MultiFramedRTPSink.cpp.

References OutPacketBuffer::extractWord(), MultiFramedRTPSink::fOutBuf, and OutPacketBuffer::insertWord().

00092                                       {
00093   unsigned rtpHdr = fOutBuf->extractWord(0);
00094   rtpHdr |= 0x00800000;
00095   fOutBuf->insertWord(rtpHdr, 0);
00096 }

void MultiFramedRTPSink::setTimestamp ( struct timeval timestamp ) [protected, inherited]

Definition at line 98 of file MultiFramedRTPSink.cpp.

References RTPSink::convertToRTPTimestamp(), RTPSink::fCurrentTimestamp, MultiFramedRTPSink::fOutBuf, MultiFramedRTPSink::fTimestampPosition, and OutPacketBuffer::insertWord().

Referenced by MultiFramedRTPSink::doSpecialFrameHandling(), MPEG4ESVideoRTPSink::doSpecialFrameHandling(), MPEG1or2VideoRTPSink::doSpecialFrameHandling(), doSpecialFrameHandling(), H264VideoRTPSink::doSpecialFrameHandling(), and H263plusVideoRTPSink::doSpecialFrameHandling().

00098                                                               {
00099   // First, convert the timestamp to a 32-bit RTP timestamp:
00100   fCurrentTimestamp = convertToRTPTimestamp(timestamp);
00101 
00102   // Then, insert it into the RTP packet:
00103   fOutBuf->insertWord(fCurrentTimestamp, fTimestampPosition);
00104 }

void MultiFramedRTPSink::setSpecialHeaderWord	(	unsigned	word,
		unsigned	wordPosition = `0`
	)			`[protected, inherited]`

Definition at line 106 of file MultiFramedRTPSink.cpp.

References MultiFramedRTPSink::fOutBuf, MultiFramedRTPSink::fSpecialHeaderPosition, and OutPacketBuffer::insertWord().

Referenced by MPEG1or2VideoRTPSink::doSpecialFrameHandling(), and MPEG1or2AudioRTPSink::doSpecialFrameHandling().

00107                                                                      {
00108   fOutBuf->insertWord(word, fSpecialHeaderPosition + 4*wordPosition);
00109 }

void MultiFramedRTPSink::setSpecialHeaderBytes	(	unsigned char const *	bytes,
		unsigned	numBytes,
		unsigned	bytePosition = `0`
	)			`[protected, inherited]`

Definition at line 111 of file MultiFramedRTPSink.cpp.

References MultiFramedRTPSink::fOutBuf, MultiFramedRTPSink::fSpecialHeaderPosition, and OutPacketBuffer::insert().

Referenced by MPEG4GenericRTPSink::doSpecialFrameHandling(), MP3ADURTPSink::doSpecialFrameHandling(), doSpecialFrameHandling(), H263plusVideoRTPSink::doSpecialFrameHandling(), AMRAudioRTPSink::doSpecialFrameHandling(), and AC3AudioRTPSink::doSpecialFrameHandling().

00113                                                                       {
00114   fOutBuf->insert(bytes, numBytes, fSpecialHeaderPosition + bytePosition);
00115 }

void MultiFramedRTPSink::setFrameSpecificHeaderWord	(	unsigned	word,
		unsigned	wordPosition = `0`
	)			`[protected, inherited]`

Definition at line 117 of file MultiFramedRTPSink.cpp.

References MultiFramedRTPSink::fCurFrameSpecificHeaderPosition, MultiFramedRTPSink::fOutBuf, and OutPacketBuffer::insertWord().

00118                                                                            {
00119   fOutBuf->insertWord(word, fCurFrameSpecificHeaderPosition + 4*wordPosition);
00120 }

void MultiFramedRTPSink::setFrameSpecificHeaderBytes	(	unsigned char const *	bytes,
		unsigned	numBytes,
		unsigned	bytePosition = `0`
	)			`[protected, inherited]`

Definition at line 122 of file MultiFramedRTPSink.cpp.

References MultiFramedRTPSink::fCurFrameSpecificHeaderPosition, MultiFramedRTPSink::fOutBuf, and OutPacketBuffer::insert().

00124                                                                             {
00125   fOutBuf->insert(bytes, numBytes, fCurFrameSpecificHeaderPosition + bytePosition);
00126 }

void MultiFramedRTPSink::setFramePadding ( unsigned numPaddingBytes ) [protected, inherited]

Definition at line 128 of file MultiFramedRTPSink.cpp.

References OutPacketBuffer::enqueue(), OutPacketBuffer::extractWord(), MultiFramedRTPSink::fOutBuf, and OutPacketBuffer::insertWord().

00128                                                                  {
00129   if (numPaddingBytes > 0) {
00130     // Add the padding bytes (with the last one being the padding size):
00131     unsigned char paddingBuffer[255]; //max padding
00132     memset(paddingBuffer, 0, numPaddingBytes);
00133     paddingBuffer[numPaddingBytes-1] = numPaddingBytes;
00134     fOutBuf->enqueue(paddingBuffer, numPaddingBytes);
00135 
00136     // Set the RTP padding bit:
00137     unsigned rtpHdr = fOutBuf->extractWord(0);
00138     rtpHdr |= 0x20000000;
00139     fOutBuf->insertWord(rtpHdr, 0);
00140   }
00141 }

unsigned MultiFramedRTPSink::numFramesUsedSoFar ( ) const [inline, protected, inherited]

Definition at line 79 of file MultiFramedRTPSink.hh.

References MultiFramedRTPSink::fNumFramesUsedSoFar.

Referenced by AMRAudioRTPSink::doSpecialFrameHandling(), AC3AudioRTPSink::doSpecialFrameHandling(), and GSMAudioRTPSink::frameCanAppearAfterPacketStart().

00079 { return fNumFramesUsedSoFar; }

unsigned MultiFramedRTPSink::ourMaxPacketSize ( ) const [inline, protected, inherited]

Definition at line 81 of file MultiFramedRTPSink.hh.

References MultiFramedRTPSink::fOurMaxPacketSize.

Referenced by H264VideoRTPSink::continuePlaying().

00081 { return fOurMaxPacketSize; }

Boolean MultiFramedRTPSink::continuePlaying ( ) [protected, virtual, inherited]

Implements MediaSink.

Reimplemented in H264VideoRTPSink.

Definition at line 143 of file MultiFramedRTPSink.cpp.

References MultiFramedRTPSink::buildAndSendPacket(), and True.

Referenced by H264VideoRTPSink::continuePlaying().

00143                                             {
00144   // Send the first packet.
00145   // (This will also schedule any future sends.)
00146   buildAndSendPacket(True);
00147   return True;
00148 }

void MultiFramedRTPSink::stopPlaying ( ) [protected, virtual, inherited]

Reimplemented from MediaSink.

Reimplemented in H264VideoRTPSink.

Definition at line 150 of file MultiFramedRTPSink.cpp.

References MultiFramedRTPSink::fOutBuf, OutPacketBuffer::resetOffset(), OutPacketBuffer::resetOverflowData(), OutPacketBuffer::resetPacketStart(), and MediaSink::stopPlaying().

Referenced by H264VideoRTPSink::stopPlaying().

00150                                      {
00151   fOutBuf->resetPacketStart();
00152   fOutBuf->resetOffset();
00153   fOutBuf->resetOverflowData();
00154 
00155   // Then call the default "stopPlaying()" function:
00156   MediaSink::stopPlaying();
00157 }

Boolean RTPSink::lookupByName	(	UsageEnvironment &	env,
		char const *	sinkName,
		RTPSink *&	resultSink
	)			`[static, inherited]`

Definition at line 26 of file RTPSink.cpp.

References env, False, MediaSink::isRTPSink(), MediaSink::lookupByName(), NULL, and True.

00027                                                       {
00028   resultSink = NULL; // unless we succeed
00029 
00030   MediaSink* sink;
00031   if (!MediaSink::lookupByName(env, sinkName, sink)) return False;
00032 
00033   if (!sink->isRTPSink()) {
00034     env.setResultMsg(sinkName, " is not a RTP sink");
00035     return False;
00036   }
00037 
00038   resultSink = (RTPSink*)sink;
00039   return True;
00040 }

Boolean MediaSink::lookupByName	(	UsageEnvironment &	env,
		char const *	sinkName,
		MediaSink *&	resultSink
	)			`[static, inherited]`

Definition at line 39 of file MediaSink.cpp.

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

Referenced by RTPSink::lookupByName().

00040                                                         {
00041   resultSink = NULL; // unless we succeed
00042 
00043   Medium* medium;
00044   if (!Medium::lookupByName(env, sinkName, medium)) return False;
00045 
00046   if (!medium->isSink()) {
00047     env.setResultMsg(sinkName, " is not a media sink");
00048     return False;
00049   }
00050 
00051   resultSink = (MediaSink*)medium;
00052   return True;
00053 }

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 }

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

Definition at line 39 of file RTPSink.hh.

References RTPSink::fSSRC.

Referenced by RTCPInstance::addBYE(), RTCPInstance::addSDES(), RTCPInstance::addSR(), MultiFramedRTPSink::buildAndSendPacket(), and RTCPInstance::incomingReportHandler1().

00039 {return fSSRC;}

u_int32_t RTPSink::convertToRTPTimestamp ( struct timeval tv ) [inherited]

Definition at line 73 of file RTPSink.cpp.

References False, RTPSink::fNextTimestampHasBeenPreset, RTPSink::fTimestampBase, and RTPSink::fTimestampFrequency.

Referenced by RTCPInstance::addSR(), RTPSink::presetNextTimestamp(), and MultiFramedRTPSink::setTimestamp().

00073                                                           {
00074   // Begin by converting from "struct timeval" units to RTP timestamp units:
00075   u_int32_t timestampIncrement = (fTimestampFrequency*tv.tv_sec);
00076   timestampIncrement += (u_int32_t)((2.0*fTimestampFrequency*tv.tv_usec + 1000000.0)/2000000);
00077        // note: rounding
00078 
00079   // Then add this to our 'timestamp base':
00080   if (fNextTimestampHasBeenPreset) {
00081     // Make the returned timestamp the same as the current "fTimestampBase",
00082     // so that timestamps begin with the value that was previously preset:
00083     fTimestampBase -= timestampIncrement;
00084     fNextTimestampHasBeenPreset = False;
00085   }
00086 
00087   u_int32_t const rtpTimestamp = fTimestampBase + timestampIncrement;
00088 #ifdef DEBUG_TIMESTAMPS
00089   fprintf(stderr, "fTimestampBase: 0x%08x, tv: %lu.%06ld\n\t=> RTP timestamp: 0x%08x\n",
00090           fTimestampBase, tv.tv_sec, tv.tv_usec, rtpTimestamp);
00091   fflush(stderr);
00092 #endif
00093 
00094   return rtpTimestamp;
00095 }

unsigned RTPSink::packetCount ( ) const [inline, inherited]

Definition at line 42 of file RTPSink.hh.

References RTPSink::fPacketCount.

Referenced by RTCPInstance::addSR(), RTPTransmissionStats::noteIncomingRR(), and RTPTransmissionStats::RTPTransmissionStats().

00042 {return fPacketCount;}

unsigned RTPSink::octetCount ( ) const [inline, inherited]

Definition at line 43 of file RTPSink.hh.

References RTPSink::fOctetCount.

Referenced by RTCPInstance::addSR(), RTPTransmissionStats::noteIncomingRR(), and RTPTransmissionStats::RTPTransmissionStats().

00043 {return fOctetCount;}

Groupsock const& RTPSink::groupsockBeingUsed ( ) const [inline, inherited]

Definition at line 46 of file RTPSink.hh.

References RTPSink::fRTPInterface, and RTPInterface::gs().

Referenced by PassiveServerMediaSubsession::getStreamParameters(), and PassiveServerMediaSubsession::sdpLines().

00046 { return *(fRTPInterface.gs()); }

Groupsock& RTPSink::groupsockBeingUsed ( ) [inline, inherited]

Definition at line 47 of file RTPSink.hh.

References RTPSink::fRTPInterface, and RTPInterface::gs().

00047 { return *(fRTPInterface.gs()); }

unsigned char RTPSink::rtpPayloadType ( ) const [inline, inherited]

Definition at line 49 of file RTPSink.hh.

References RTPSink::fRTPPayloadType.

Referenced by MPEG4ESVideoRTPSink::auxSDPLine(), AMRAudioRTPSink::auxSDPLine(), RTPSink::rtpmapLine(), PassiveServerMediaSubsession::sdpLines(), OnDemandServerMediaSubsession::setSDPLinesFromRTPSink(), and SubstreamDescriptor::SubstreamDescriptor().

00049 { return fRTPPayloadType; }

unsigned RTPSink::rtpTimestampFrequency ( ) const [inline, inherited]

Definition at line 50 of file RTPSink.hh.

References RTPSink::fTimestampFrequency.

Referenced by RTPSink::rtpmapLine(), and SubstreamDescriptor::SubstreamDescriptor().

00050 { return fTimestampFrequency; }

void RTPSink::setRTPTimestampFrequency ( unsigned freq ) [inline, inherited]

Definition at line 51 of file RTPSink.hh.

References RTPSink::fTimestampFrequency.

00051                                                {
00052     fTimestampFrequency = freq;
00053   }

char const* RTPSink::rtpPayloadFormatName ( ) const [inline, inherited]

Definition at line 54 of file RTPSink.hh.

References RTPSink::fRTPPayloadFormatName.

Referenced by RTPSink::rtpmapLine(), and SubstreamDescriptor::SubstreamDescriptor().

00054 {return fRTPPayloadFormatName;}

unsigned RTPSink::numChannels ( ) const [inline, inherited]

Definition at line 56 of file RTPSink.hh.

References RTPSink::fNumChannels.

Referenced by RTPSink::rtpmapLine(), AMRAudioRTPSink::sourceIsCompatibleWithUs(), and SubstreamDescriptor::SubstreamDescriptor().

00056 { return fNumChannels; }

char * RTPSink::rtpmapLine ( ) const [virtual, inherited]

Definition at line 125 of file RTPSink.cpp.

References RTPSink::numChannels(), RTPSink::rtpPayloadFormatName(), RTPSink::rtpPayloadType(), RTPSink::rtpTimestampFrequency(), and strDup().

Referenced by PassiveServerMediaSubsession::sdpLines(), and OnDemandServerMediaSubsession::setSDPLinesFromRTPSink().

00125                                 {
00126   if (rtpPayloadType() >= 96) { // the payload format type is dynamic
00127     char* encodingParamsPart;
00128     if (numChannels() != 1) {
00129       encodingParamsPart = new char[1 + 20 /* max int len */];
00130       sprintf(encodingParamsPart, "/%d", numChannels());
00131     } else {
00132       encodingParamsPart = strDup("");
00133     }
00134     char const* const rtpmapFmt = "a=rtpmap:%d %s/%d%s\r\n";
00135     unsigned rtpmapFmtSize = strlen(rtpmapFmt)
00136       + 3 /* max char len */ + strlen(rtpPayloadFormatName())
00137       + 20 /* max int len */ + strlen(encodingParamsPart);
00138     char* rtpmapLine = new char[rtpmapFmtSize];
00139     sprintf(rtpmapLine, rtpmapFmt,
00140             rtpPayloadType(), rtpPayloadFormatName(),
00141             rtpTimestampFrequency(), encodingParamsPart);
00142     delete[] encodingParamsPart;
00143 
00144     return rtpmapLine;
00145   } else {
00146     // The payload format is staic, so there's no "a=rtpmap:" line:
00147     return strDup("");
00148   }
00149 }

char const * RTPSink::auxSDPLine ( ) [virtual, inherited]

Reimplemented in AMRAudioRTPSink, H264VideoRTPSink, MPEG4ESVideoRTPSink, MPEG4GenericRTPSink, and MPEG4LATMAudioRTPSink.

Definition at line 151 of file RTPSink.cpp.

References NULL.

Referenced by awaitConfigInfo(), checkForAuxSDPLine(), MPEG4VideoFileServerMediaSubsession::checkForAuxSDPLine1(), OnDemandServerMediaSubsession::getAuxSDPLine(), MPEG4VideoFileServerMediaSubsession::getAuxSDPLine(), PassiveServerMediaSubsession::sdpLines(), and SubstreamDescriptor::SubstreamDescriptor().

00151                                 {
00152   return NULL; // by default
00153 }

u_int16_t RTPSink::currentSeqNo ( ) const [inline, inherited]

Definition at line 63 of file RTPSink.hh.

References RTPSink::fSeqNo.

Referenced by PassiveServerMediaSubsession::startStream(), and OnDemandServerMediaSubsession::startStream().

00063 { return fSeqNo; }

u_int32_t RTPSink::presetNextTimestamp ( ) [inherited]

Definition at line 97 of file RTPSink.cpp.

References RTPSink::convertToRTPTimestamp(),


Public Types
typedef void(	afterPlayingFunc )(void *clientData)
Public Member Functions
void	setPacketSizes (unsigned preferredPacketSize, unsigned maxPacketSize)
u_int32_t	SSRC () const
u_int32_t	convertToRTPTimestamp (struct timeval tv)
unsigned	packetCount () const
unsigned	octetCount () const
Groupsock const &	groupsockBeingUsed () const
Groupsock &	groupsockBeingUsed ()
unsigned char	rtpPayloadType () const
unsigned	rtpTimestampFrequency () const
void	setRTPTimestampFrequency (unsigned freq)
char const *	rtpPayloadFormatName () const
unsigned	numChannels () const
virtual char *	rtpmapLine () const
virtual char const *	auxSDPLine ()
u_int16_t	currentSeqNo () const
u_int32_t	presetNextTimestamp ()
RTPTransmissionStatsDB &	transmissionStatsDB () const
Boolean	nextTimestampHasBeenPreset () const
void	setStreamSocket (int sockNum, unsigned char streamChannelId)
void	addStreamSocket (int sockNum, unsigned char streamChannelId)
void	removeStreamSocket (int sockNum, unsigned char streamChannelId)
void	getTotalBitrate (unsigned &outNumBytes, double &outElapsedTime)
Boolean	startPlaying (MediaSource &source, afterPlayingFunc afterFunc, void afterClientData)
FramedSource *	source () const
UsageEnvironment &	envir () const
char const *	name () const
virtual Boolean	isSource () 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 JPEGVideoRTPSink *	createNew (UsageEnvironment &env, Groupsock *RTPgs)
static Boolean	lookupByName (UsageEnvironment &env, char const sinkName, RTPSink &resultSink)
static Boolean	lookupByName (UsageEnvironment &env, char const sinkName, MediaSink &resultSink)
static Boolean	lookupByName (UsageEnvironment &env, char const mediumName, Medium &resultMedium)
static void	close (UsageEnvironment &env, char const *mediumName)
static void	close (Medium *medium)
Protected Member Functions
	JPEGVideoRTPSink (UsageEnvironment &env, Groupsock *RTPgs)
virtual	~JPEGVideoRTPSink ()
virtual Boolean	allowFragmentationAfterStart () const
virtual Boolean	allowOtherFramesAfterLastFragment () const
virtual unsigned	frameSpecificHeaderSize () const
Boolean	isFirstPacket () const
Boolean	isFirstFrameInPacket () const
Boolean	curFragmentationOffset () const
void	setMarkerBit ()
void	setTimestamp (struct timeval timestamp)
void	setSpecialHeaderWord (unsigned word, unsigned wordPosition=0)
void	setSpecialHeaderBytes (unsigned char const *bytes, unsigned numBytes, unsigned bytePosition=0)
void	setFrameSpecificHeaderWord (unsigned word, unsigned wordPosition=0)
void	setFrameSpecificHeaderBytes (unsigned char const *bytes, unsigned numBytes, unsigned bytePosition=0)
void	setFramePadding (unsigned numPaddingBytes)
unsigned	numFramesUsedSoFar () const
unsigned	ourMaxPacketSize () const
virtual Boolean	continuePlaying ()
virtual void	stopPlaying ()
TaskToken &	nextTask ()
Static Protected Member Functions
static void	onSourceClosure (void *clientData)
Protected Attributes
RTPInterface	fRTPInterface
unsigned char	fRTPPayloadType
unsigned	fPacketCount
unsigned	fOctetCount
unsigned	fTotalOctetCount
timeval	fTotalOctetCountStartTime
u_int32_t	fCurrentTimestamp
u_int16_t	fSeqNo
FramedSource *	fSource
Private Member Functions
virtual Boolean	sourceIsCompatibleWithUs (MediaSource &source)
virtual void	doSpecialFrameHandling (unsigned fragmentationOffset, unsigned char *frameStart, unsigned numBytesInFrame, struct timeval frameTimestamp, unsigned numRemainingBytes)
virtual Boolean	frameCanAppearAfterPacketStart (unsigned char const *frameStart, unsigned numBytesInFrame) const
virtual unsigned	specialHeaderSize () const

JPEGVideoRTPSink Class Reference

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Private Member Functions

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation