[rtmp] check m_rtmp for non-NULL - fixes crashes with missing librtmp

diff --git a/xbmc/cores/dvdplayer/DVDInputStreams/DVDInputStreamRTMP.cpp b/xbmc/cores/dvdplayer/DVDInputStreams/DVDInputStreamRTMP.cpp
index b02792a..93fc6f0 100644 (file)
--- a/xbmc/cores/dvdplayer/DVDInputStreams/DVDInputStreamRTMP.cpp
+++ b/xbmc/cores/dvdplayer/DVDInputStreams/DVDInputStreamRTMP.cpp
@@ -104,7 +104,8 @@ CDVDInputStreamRTMP::~CDVDInputStreamRTMP()
   m_sStreamPlaying = NULL;
 
   Close();
-  m_libRTMP.Free(m_rtmp);
+  if (m_rtmp)
+    m_libRTMP.Free(m_rtmp);
   m_rtmp = NULL;
   m_bPaused = false;
 }
@@ -139,7 +140,7 @@ bool CDVDInputStreamRTMP::Open(const char* strFile, const std::string& content)
     m_sStreamPlaying = NULL;
   }
 
-  if (!CDVDInputStream::Open(strFile, "video/x-flv"))
+  if (!m_rtmp || !CDVDInputStream::Open(strFile, "video/x-flv"))
     return false;
 
   CSingleLock lock(m_RTMPSection);
@@ -181,7 +182,8 @@ void CDVDInputStreamRTMP::Close()
   CSingleLock lock(m_RTMPSection);
   CDVDInputStream::Close();
 
-  m_libRTMP.Close(m_rtmp);
+  if (m_rtmp)
+    m_libRTMP.Close(m_rtmp);
 
   m_optionvalues.clear();
   m_eof = true;
@@ -190,6 +192,9 @@ void CDVDInputStreamRTMP::Close()
 
 int CDVDInputStreamRTMP::Read(uint8_t* buf, int buf_size)
 {
+  if (!m_rtmp)
+    return -1;
+
   int i = m_libRTMP.Read(m_rtmp, (char *)buf, buf_size);
   if (i < 0)
     m_eof = true;
@@ -210,7 +215,7 @@ bool CDVDInputStreamRTMP::SeekTime(int iTimeInMsec)
   CLog::Log(LOGNOTICE, "RTMP Seek to %i requested", iTimeInMsec);
   CSingleLock lock(m_RTMPSection);
 
-  if (m_libRTMP.SendSeek(m_rtmp, iTimeInMsec))
+  if (m_rtmp && m_libRTMP.SendSeek(m_rtmp, iTimeInMsec))
     return true;
 
   return false;
@@ -229,7 +234,8 @@ bool CDVDInputStreamRTMP::Pause(double dTime)
 
   CLog::Log(LOGNOTICE, "RTMP Pause %s requested", m_bPaused ? "TRUE" : "FALSE");
 
-  m_libRTMP.Pause(m_rtmp, m_bPaused);
+  if (m_rtmp)
+    m_libRTMP.Pause(m_rtmp, m_bPaused);
 
   return true;
 }