From 4a2c2f6fa2dc3a6b1dd7fd57fff2511059d8d8a3 Mon Sep 17 00:00:00 2001
From: xuxiuxi <xuxiuxi@454eff88-639b-444f-9e54-f578c98de674>
Date: 星期三, 12 四月 2017 12:33:51 +0800
Subject: [PATCH] 

---
 VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MediaSink.hh |  135 +++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 135 insertions(+), 0 deletions(-)

diff --git a/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MediaSink.hh b/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MediaSink.hh
new file mode 100644
index 0000000..6486d2f
--- /dev/null
+++ b/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MediaSink.hh
@@ -0,0 +1,135 @@
+/**********
+This library is free software; you can redistribute it and/or modify it under
+the terms of the GNU Lesser General Public License as published by the
+Free Software Foundation; either version 3 of the License, or (at your
+option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)
+
+This library is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for
+more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with this library; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
+**********/
+// "liveMedia"
+// Copyright (c) 1996-2017 Live Networks, Inc.  All rights reserved.
+// Media Sinks
+// C++ header
+
+#ifndef _MEDIA_SINK_HH
+#define _MEDIA_SINK_HH
+
+#ifndef _FRAMED_SOURCE_HH
+#include "FramedSource.hh"
+#endif
+
+class MediaSink: public Medium {
+public:
+  static Boolean lookupByName(UsageEnvironment& env, char const* sinkName,
+			      MediaSink*& resultSink);
+
+  typedef void (afterPlayingFunc)(void* clientData);
+  Boolean startPlaying(MediaSource& source,
+		       afterPlayingFunc* afterFunc,
+		       void* afterClientData);
+  virtual void stopPlaying();
+
+  // Test for specific types of sink:
+  virtual Boolean isRTPSink() const;
+
+  FramedSource* source() const {return fSource;}
+
+protected:
+  MediaSink(UsageEnvironment& env); // abstract base class
+  virtual ~MediaSink();
+
+  virtual Boolean sourceIsCompatibleWithUs(MediaSource& source);
+      // called by startPlaying()
+  virtual Boolean continuePlaying() = 0;
+      // called by startPlaying()
+
+  static void onSourceClosure(void* clientData); // can be used in "getNextFrame()" calls
+  void onSourceClosure();
+      // should be called (on ourselves) by continuePlaying() when it
+      // discovers that the source we're playing from has closed.
+
+  FramedSource* fSource;
+
+private:
+  // redefined virtual functions:
+  virtual Boolean isSink() const;
+
+private:
+  // The following fields are used when we're being played:
+  afterPlayingFunc* fAfterFunc;
+  void* fAfterClientData;
+};
+
+// A data structure that a sink may use for an output packet:
+class OutPacketBuffer {
+public:
+  OutPacketBuffer(unsigned preferredPacketSize, unsigned maxPacketSize,
+		  unsigned maxBufferSize = 0);
+      // if "maxBufferSize" is >0, use it - instead of "maxSize" to compute the buffer size
+  ~OutPacketBuffer();
+
+  static unsigned maxSize;
+  static void increaseMaxSizeTo(unsigned newMaxSize) { if (newMaxSize > OutPacketBuffer::maxSize) OutPacketBuffer::maxSize = newMaxSize; }
+
+  unsigned char* curPtr() const {return &fBuf[fPacketStart + fCurOffset];}
+  unsigned totalBytesAvailable() const {
+    return fLimit - (fPacketStart + fCurOffset);
+  }
+  unsigned totalBufferSize() const { return fLimit; }
+  unsigned char* packet() const {return &fBuf[fPacketStart];}
+  unsigned curPacketSize() const {return fCurOffset;}
+
+  void increment(unsigned numBytes) {fCurOffset += numBytes;}
+
+  void enqueue(unsigned char const* from, unsigned numBytes);
+  void enqueueWord(u_int32_t word);
+  void insert(unsigned char const* from, unsigned numBytes, unsigned toPosition);
+  void insertWord(u_int32_t word, unsigned toPosition);
+  void extract(unsigned char* to, unsigned numBytes, unsigned fromPosition);
+  u_int32_t extractWord(unsigned fromPosition);
+
+  void skipBytes(unsigned numBytes);
+
+  Boolean isPreferredSize() const {return fCurOffset >= fPreferred;}
+  Boolean wouldOverflow(unsigned numBytes) const {
+    return (fCurOffset+numBytes) > fMax;
+  }
+  unsigned numOverflowBytes(unsigned numBytes) const {
+    return (fCurOffset+numBytes) - fMax;
+  }
+  Boolean isTooBigForAPacket(unsigned numBytes) const {
+    return numBytes > fMax;
+  }
+
+  void setOverflowData(unsigned overflowDataOffset,
+		       unsigned overflowDataSize,
+		       struct timeval const& presentationTime,
+		       unsigned durationInMicroseconds);
+  unsigned overflowDataSize() const {return fOverflowDataSize;}
+  struct timeval overflowPresentationTime() const {return fOverflowPresentationTime;}
+  unsigned overflowDurationInMicroseconds() const {return fOverflowDurationInMicroseconds;}
+  Boolean haveOverflowData() const {return fOverflowDataSize > 0;}
+  void useOverflowData();
+
+  void adjustPacketStart(unsigned numBytes);
+  void resetPacketStart();
+  void resetOffset() { fCurOffset = 0; }
+  void resetOverflowData() { fOverflowDataOffset = fOverflowDataSize = 0; }
+
+private:
+  unsigned fPacketStart, fCurOffset, fPreferred, fMax, fLimit;
+  unsigned char* fBuf;
+
+  unsigned fOverflowDataOffset, fOverflowDataSize;
+  struct timeval fOverflowPresentationTime;
+  unsigned fOverflowDurationInMicroseconds;
+};
+
+#endif

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