initial. migrated from sourceforge

This is patch for live555 library, latest version (when this patch has created) 2007.11.18 from http://live555.com/liveMedia/public/

This patch provide the support in the JPEG RTP stream of the image dimensions - width and height - to have value more than 2040 (it's limitation of RTP JPEG standard), if a SDP stream description have a field "a=x-dimensions:width,height"

To apply it, download archive with the "live555" library, copy a file "jpeg_dimensions.patch" to the root directory with the sources, and run

patch -N -p0 < jpeg_dimensions.patch

diff -U 3 -H -d -r -N -- liveMedia/JPEGVideoRTPSource.cpp liveMedia/JPEGVideoRTPSource.cpp

--- liveMedia/JPEGVideoRTPSource.cpp	2007-11-18 02:27:55.000000000 +0200

+++ liveMedia/JPEGVideoRTPSource.cpp	2007-11-21 19:52:45.000000000 +0200

@@ -55,18 +55,20 @@

 JPEGVideoRTPSource*

 JPEGVideoRTPSource::createNew(UsageEnvironment& env, Groupsock* RTPgs,

 			      unsigned char rtpPayloadFormat,

-			      unsigned rtpTimestampFrequency) {

+                  unsigned rtpTimestampFrequency, int width, int height) {

   return new JPEGVideoRTPSource(env, RTPgs, rtpPayloadFormat,

-				rtpTimestampFrequency);

+                rtpTimestampFrequency, width, height);

 }

 JPEGVideoRTPSource::JPEGVideoRTPSource(UsageEnvironment& env,

 				       Groupsock* RTPgs,

 				       unsigned char rtpPayloadFormat,

-				       unsigned rtpTimestampFrequency)

+                       unsigned rtpTimestampFrequency, int width, int height)

   : MultiFramedRTPSource(env, RTPgs,

 			 rtpPayloadFormat, rtpTimestampFrequency,

 			 new JPEGBufferedPacketFactory) {

+  _width = width;

+  _height = height;

 }

 JPEGVideoRTPSource::~JPEGVideoRTPSource() {

@@ -340,8 +342,12 @@

   unsigned type = Type & 1;

   unsigned Q = (unsigned)headerStart[5];

   unsigned width = (unsigned)headerStart[6] * 8;

-  if (width == 0) width = 256*8; // special case

   unsigned height = (unsigned)headerStart[7] * 8;

+  if ((width == 0 || height == 0) && _width != 0 && _height != 0) {

+    width = _width;

+    height = _height;

+  }

+  if (width == 0) width = 256*8; // special case

   if (height == 0) height = 256*8; // special case

   if (Type > 63) {

diff -U 3 -H -d -r -N -- liveMedia/MediaSession.cpp liveMedia/MediaSession.cpp

--- liveMedia/MediaSession.cpp	2007-11-18 02:27:55.000000000 +0200

+++ liveMedia/MediaSession.cpp	2007-11-21 19:55:12.000000000 +0200

@@ -745,7 +745,9 @@

 	fReadSource = fRTPSource

 	  = JPEGVideoRTPSource::createNew(env(), fRTPSocket,

 					  fRTPPayloadFormat,

-					  fRTPTimestampFrequency);

+					  fRTPTimestampFrequency,

+                      videoWidth(),

+                      videoHeight());

       } else if (strcmp(fCodecName, "X-QT") == 0

 		 || strcmp(fCodecName, "X-QUICKTIME") == 0) {

 	// Generic QuickTime streams, as defined in

diff -U 3 -H -d -r -N -- liveMedia/include/JPEGVideoRTPSource.hh liveMedia/include/JPEGVideoRTPSource.hh

--- liveMedia/include/JPEGVideoRTPSource.hh	2007-11-18 02:27:54.000000000 +0200

+++ liveMedia/include/JPEGVideoRTPSource.hh	2007-11-21 19:57:36.000000000 +0200

@@ -32,7 +32,7 @@

   static JPEGVideoRTPSource*

   createNew(UsageEnvironment& env, Groupsock* RTPgs,

 	    unsigned char rtpPayloadFormat = 26,

-	    unsigned rtpPayloadFrequency = 90000);

+	    unsigned rtpPayloadFrequency = 90000, int width = 0, int height = 0);

 protected:

   virtual ~JPEGVideoRTPSource();

@@ -40,9 +40,13 @@

 private:

   JPEGVideoRTPSource(UsageEnvironment& env, Groupsock* RTPgs,

 		     unsigned char rtpPayloadFormat,

-		     unsigned rtpTimestampFrequency);

+		     unsigned rtpTimestampFrequency, int width,int height);

       // called only by createNew()

+  // Image dimensions from the SDP description, if any

+  int _width;

+  int _height;

+

 private:

   // redefined virtual functions:

   virtual Boolean processSpecialHeader(BufferedPacket* packet,