Add even more of the source

This should be about everything needed to build so far?
2017-03-07 17:14:16 -08:00 · 2017-03-07 17:14:16 -08:00 · 849723c9cf
commit 849723c9cf
parent af3619d4fa
547 changed files with 149239 additions and 0 deletions
--- a/RTCPUtilitiesLib/RTCPSRPacket.cpp
+++ b/RTCPUtilitiesLib/RTCPSRPacket.cpp
@ -0,0 +1,119 @@
+/*
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * Copyright (c) 1999-2008 Apple Inc.  All Rights Reserved.
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ *
+ */
+/*
+    File:       RTCPSRPacket.cpp
+
+    Contains:   A class that writes a RTCP Sender Report
+                
+    Change History (most recent first):
+
+    
+
+*/
+
+#include <string.h>
+
+#include "RTCPSRPacket.h"
+#include "MyAssert.h"
+#include "OS.h"
+
+RTCPSRPacket::RTCPSRPacket()
+{
+    // Write as much of the Sender Report as is possible
+    char theTempCName[kMaxCNameLen];
+    UInt32 cNameLen = RTCPSRPacket::GetACName(theTempCName);
+    
+    //write the SR & SDES headers
+    UInt32* theSRWriter = (UInt32*)&fSenderReportBuffer;
+    *theSRWriter = htonl(0x80c80006);
+    theSRWriter += 7; //number of UInt32s in an SR.
+    
+    //SDES length is the length of the CName, plus 2 32bit words, plus the 32bit word for the SSRC
+    *theSRWriter = htonl(0x81ca0000 + (cNameLen >> 2) + 1);
+    ::memcpy(&fSenderReportBuffer[kSenderReportSizeInBytes], theTempCName, cNameLen);
+    fSenderReportSize = kSenderReportSizeInBytes + cNameLen;
+
+/*
+ SERVER INFO PACKET FORMAT
+struct qtss_rtcp_struct
+{
+    RTCPHeader      header;
+    UInt32          ssrc;       // ssrc of rtcp originator
+    OSType          name;
+    UInt32          senderSSRC;
+    SInt16          reserved;
+    SInt16          length;     // bytes of data (atoms) / 4
+    // qtsi_rtcp_atom structures follow
+};
+*/
+
+    //
+    // Write the SERVER INFO APP packet
+    UInt32* theAckInfoWriter = (UInt32*)&fSenderReportBuffer[fSenderReportSize];
+    *theAckInfoWriter = htonl(0x81cc0006);
+    theAckInfoWriter += 2;
+    *(theAckInfoWriter++) = htonl(FOUR_CHARS_TO_INT('q', 't', 's', 'i')); // Ack Info APP name
+    theAckInfoWriter++; // leave space for the ssrc (again)
+    *(theAckInfoWriter++) = htonl(2); // 2 UInt32s for the 'at' field
+    *(theAckInfoWriter++) = htonl(FOUR_CHARS_TO_INT( 'a', 't', 0, 4 ));
+    fSenderReportWithServerInfoSize = (char*)(theAckInfoWriter+1) - fSenderReportBuffer;    
+    
+    UInt32* theByeWriter = (UInt32*)&fSenderReportBuffer[fSenderReportWithServerInfoSize];
+    *theByeWriter = htonl(0x81cb0001);
+}
+
+UInt32 RTCPSRPacket::GetACName(char* ioCNameBuffer)
+{
+    static char*    sCNameBase = "QTSS";
+
+    //clear out the whole buffer
+    ::memset(ioCNameBuffer, 0, kMaxCNameLen);
+    
+    //cName identifier
+    ioCNameBuffer[0] = 1;
+    
+    //Unique cname is constructed from the base name and the current time
+    qtss_sprintf(&ioCNameBuffer[1], " %s%"_64BITARG_"d", sCNameBase, OS::Milliseconds() / 1000);
+    UInt32 cNameLen = ::strlen(ioCNameBuffer);
+    //2nd byte of CName should be length
+    ioCNameBuffer[1] = (UInt8) (cNameLen - 2);//don't count indicator or length byte
+
+    // This function assumes that the cName is the only item in this SDES chunk
+    // (see RTP rfc for details).
+    // The RFC says that the item (the cName) should not be NULL terminated, but
+    // the chunk *must* be NULL terminated. And padded to a 32-bit boundary.
+    //
+    // qtss_sprintf already put a NULL terminator in the cName buffer. So all we have to
+    // do is pad out to the boundary.
+    cNameLen += 1; //add on the NULL character
+    UInt32 paddedLength = cNameLen + (4 - (cNameLen % 4));
+    
+    // Pad, and zero out as we pad.
+    for (; cNameLen < paddedLength; cNameLen++)
+        ioCNameBuffer[cNameLen] = '\0';
+    
+    Assert((cNameLen % 4) == 0);
+    return cNameLen;
+}