From 15d0c49e85159b9e27870aff5280c0cd95b103c4 Mon Sep 17 00:00:00 2001
From: xuxiuxi <xuxiuxi@454eff88-639b-444f-9e54-f578c98de674>
Date: 星期四, 04 五月 2017 17:16:56 +0800
Subject: [PATCH]
---
VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MP3ADUinterleaving.hh | 129 +++++++++++++++++++++++++++++++++++++++++++
1 files changed, 129 insertions(+), 0 deletions(-)
diff --git a/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MP3ADUinterleaving.hh b/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MP3ADUinterleaving.hh
new file mode 100644
index 0000000..8425c3e
--- /dev/null
+++ b/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MP3ADUinterleaving.hh
@@ -0,0 +1,129 @@
+/**********
+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.
+// Interleaving of MP3 ADUs
+// C++ header
+
+#ifndef _MP3_ADU_INTERLEAVING_HH
+#define _MP3_ADU_INTERLEAVING_HH
+
+#ifndef _FRAMED_FILTER_HH
+#include "FramedFilter.hh"
+#endif
+
+// A data structure used to represent an interleaving
+#define MAX_CYCLE_SIZE 256
+class Interleaving {
+public:
+ Interleaving(unsigned cycleSize, unsigned char const* cycleArray);
+ virtual ~Interleaving();
+
+ unsigned cycleSize() const {return fCycleSize;}
+ unsigned char lookupInverseCycle(unsigned char index) const {
+ return fInverseCycle[index];
+ }
+
+private:
+ unsigned fCycleSize;
+ unsigned char fInverseCycle[MAX_CYCLE_SIZE];
+};
+
+// This class is used only as a base for the following two:
+
+class MP3ADUinterleaverBase: public FramedFilter {
+protected:
+ MP3ADUinterleaverBase(UsageEnvironment& env,
+ FramedSource* inputSource);
+ // abstract base class
+ virtual ~MP3ADUinterleaverBase();
+
+ static FramedSource* getInputSource(UsageEnvironment& env,
+ char const* inputSourceName);
+ static void afterGettingFrame(void* clientData,
+ unsigned numBytesRead,
+ unsigned numTruncatedBytes,
+ struct timeval presentationTime,
+ unsigned durationInMicroseconds);
+ virtual void afterGettingFrame(unsigned numBytesRead,
+ struct timeval presentationTime,
+ unsigned durationInMicroseconds) = 0;
+};
+
+// This class is used to convert an ADU sequence from non-interleaved
+// to interleaved form:
+
+class MP3ADUinterleaver: public MP3ADUinterleaverBase {
+public:
+ static MP3ADUinterleaver* createNew(UsageEnvironment& env,
+ Interleaving const& interleaving,
+ FramedSource* inputSource);
+
+protected:
+ MP3ADUinterleaver(UsageEnvironment& env,
+ Interleaving const& interleaving,
+ FramedSource* inputSource);
+ // called only by createNew()
+ virtual ~MP3ADUinterleaver();
+
+private:
+ // redefined virtual functions:
+ virtual void doGetNextFrame();
+ virtual void afterGettingFrame(unsigned numBytesRead,
+ struct timeval presentationTime,
+ unsigned durationInMicroseconds);
+
+private:
+ void releaseOutgoingFrame();
+
+private:
+ Interleaving const fInterleaving;
+ class InterleavingFrames* fFrames;
+ unsigned char fPositionOfNextIncomingFrame;
+ unsigned fII, fICC;
+};
+
+// This class is used to convert an ADU sequence from interleaved
+// to non-interleaved form:
+
+class MP3ADUdeinterleaver: public MP3ADUinterleaverBase {
+public:
+ static MP3ADUdeinterleaver* createNew(UsageEnvironment& env,
+ FramedSource* inputSource);
+
+protected:
+ MP3ADUdeinterleaver(UsageEnvironment& env,
+ FramedSource* inputSource);
+ // called only by createNew()
+ virtual ~MP3ADUdeinterleaver();
+
+private:
+ // redefined virtual functions:
+ virtual void doGetNextFrame();
+ virtual void afterGettingFrame(unsigned numBytesRead,
+ struct timeval presentationTime,
+ unsigned durationInMicroseconds);
+
+private:
+ void releaseOutgoingFrame();
+
+private:
+ class DeinterleavingFrames* fFrames;
+ unsigned fIIlastSeen, fICClastSeen;
+};
+
+#endif
+
--
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