liveMedia/RTSPClient.cpp File Reference

#include "RTSPClient.hh"
#include "RTSPCommon.hh"
#include "Base64.hh"
#include "Locale.hh"
#include <GroupsockHelper.hh>
#include "our_md5.h"

Include dependency graph for RTSPClient.cpp:

Go to the source code of this file.

Functions
static char *	createSessionString (char const *sessionId)
static char *	createScaleString (float scale, float currentScale)
static char *	createRangeString (double start, double end, char const *absStartTime, char const *absEndTime)
static Boolean	isAbsoluteURL (char const *url)
static char *	getLine (char *startOfLine)

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Function Documentation

static char* createRangeString	(	double	start,
		double	end,
		char const *	absStartTime,
		char const *	absEndTime
	)			[static]

Definition at line 495 of file RTSPClient.cpp.

References NULL, Numeric, and strDup().

Referenced by RTSPClient::sendRequest().

                                                                                                           {
  char buf[100];

  if (absStartTime != NULL) {
    // Create a "Range:" header that specifies 'absolute' time values:

    if (absEndTime == NULL) {
      // There's no end time:
      snprintf(buf, sizeof buf, "Range: clock=%s-\r\n", absStartTime);
    } else {
      // There's both a start and an end time; include them both in the "Range:" hdr
      snprintf(buf, sizeof buf, "Range: clock=%s-%s\r\n", absStartTime, absEndTime);
    }
  } else {
    // Create a "Range:" header that specifies relative (i.e., NPT) time values:

    if (start < 0) {
      // We're resuming from a PAUSE; there's no "Range:" header at all
      buf[0] = '\0';
    } else if (end < 0) {
      // There's no end time:
      Locale l("C", Numeric);
      sprintf(buf, "Range: npt=%.3f-\r\n", start);
    } else {
      // There's both a start and an end time; include them both in the "Range:" hdr
      Locale l("C", Numeric);
      sprintf(buf, "Range: npt=%.3f-%.3f\r\n", start, end);
    }
  }

  return strDup(buf);
}

static char* createScaleString	(	float	scale,
		float	currentScale
	)			[static]

Definition at line 482 of file RTSPClient.cpp.

References Numeric, and strDup().

Referenced by RTSPClient::sendRequest().

                                                                {
  char buf[100];
  if (scale == 1.0f && currentScale == 1.0f) {
    // This is the default value; we don't need a "Scale:" header:
    buf[0] = '\0';
  } else {
    Locale l("C", Numeric);
    sprintf(buf, "Scale: %f\r\n", scale);
  }

  return strDup(buf);
}

static char* createSessionString

(

char const *

sessionId

)

[static]

Definition at line 471 of file RTSPClient.cpp.

References NULL, and strDup().

Referenced by RTSPClient::sendRequest().

                                                        {
  char* sessionStr;
  if (sessionId != NULL) {
    sessionStr = new char[20+strlen(sessionId)];
    sprintf(sessionStr, "Session: %s\r\n", sessionId);
  } else {
    sessionStr = strDup("");
  }
  return sessionStr;
}

static char* getLine

(

char *

startOfLine

)

[static]

Definition at line 1377 of file RTSPClient.cpp.

References NULL.

Referenced by SIPClient::getResponseCode(), RTSPClient::handleResponseBytes(), and setupSubsession().

                                        {
  // returns the start of the next line, or NULL if none.  Note that this modifies the input string to add '\0' characters.
  for (char* ptr = startOfLine; *ptr != '\0'; ++ptr) {
    // Check for the end of line: \r\n (but also accept \r or \n by itself):
    if (*ptr == '\r' || *ptr == '\n') {
      // We found the end of the line
      if (*ptr == '\r') {
        *ptr++ = '\0';
        if (*ptr == '\n') ++ptr;
      } else {
        *ptr++ = '\0';
      }
      return ptr;
    }
  }

  return NULL;
}

static Boolean isAbsoluteURL

(

char const *

url

)

[static]

Definition at line 1215 of file RTSPClient.cpp.

References False, and True.

Referenced by RTSPClient::constructSubsessionURL().

                                              {
  // Assumption: "url" is absolute if it contains a ':', before any
  // occurrence of '/'
  while (*url != '\0' && *url != '/') {
    if (*url == ':') return True;
    ++url;
  }

  return False;
}

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