From 41bc5a329c73e3b43695f73f11c47c97c44cc1b6 Mon Sep 17 00:00:00 2001
From: chenke <chenke@454eff88-639b-444f-9e54-f578c98de674>
Date: 星期四, 20 七月 2017 09:45:41 +0800
Subject: [PATCH]
---
VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MP3ADU.hh | 97 ++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 97 insertions(+), 0 deletions(-)
diff --git a/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MP3ADU.hh b/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MP3ADU.hh
new file mode 100644
index 0000000..5d32957
--- /dev/null
+++ b/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MP3ADU.hh
@@ -0,0 +1,97 @@
+/**********
+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.
+// 'ADU' MP3 streams (for improved loss-tolerance)
+// C++ header
+
+#ifndef _MP3_ADU_HH
+#define _MP3_ADU_HH
+
+#ifndef _FRAMED_FILTER_HH
+#include "FramedFilter.hh"
+#endif
+
+class ADUFromMP3Source: public FramedFilter {
+public:
+ static ADUFromMP3Source* createNew(UsageEnvironment& env,
+ FramedSource* inputSource,
+ Boolean includeADUdescriptors = True);
+
+ void resetInput();
+ // This is called whenever there's a discontinuity in the input MP3 source
+ // (e.g., due to seeking within the source). It causes any still-unprocessed
+ // MP3 frame data within our queue to be discarded, so that it does not
+ // erroneously get used by backpointers from the new MP3 frames.
+
+ Boolean setScaleFactor(int scale);
+
+protected:
+ ADUFromMP3Source(UsageEnvironment& env,
+ FramedSource* inputSource,
+ Boolean includeADUdescriptors);
+ // called only by createNew()
+ virtual ~ADUFromMP3Source();
+
+private:
+ // Redefined virtual functions:
+ virtual void doGetNextFrame();
+ virtual char const* MIMEtype() const;
+
+private:
+ Boolean doGetNextFrame1();
+
+private:
+ Boolean fAreEnqueueingMP3Frame;
+ class SegmentQueue* fSegments;
+ Boolean fIncludeADUdescriptors;
+ unsigned fTotalDataSizeBeforePreviousRead;
+ int fScale;
+ unsigned fFrameCounter;
+};
+
+class MP3FromADUSource: public FramedFilter {
+public:
+ static MP3FromADUSource* createNew(UsageEnvironment& env,
+ FramedSource* inputSource,
+ Boolean includeADUdescriptors = True);
+
+protected:
+ MP3FromADUSource(UsageEnvironment& env,
+ FramedSource* inputSource,
+ Boolean includeADUdescriptors);
+ // called only by createNew()
+ virtual ~MP3FromADUSource();
+
+private:
+ // Redefined virtual functions:
+ virtual void doGetNextFrame();
+ virtual char const* MIMEtype() const;
+
+private:
+ Boolean needToGetAnADU();
+ void insertDummyADUsIfNecessary();
+ Boolean generateFrameFromHeadADU();
+
+private:
+ Boolean fAreEnqueueingADU;
+ class SegmentQueue* fSegments;
+};
+
+// Definitions of external C functions that implement various MP3 operations:
+extern "C" int mp3ZeroOutSideInfo(unsigned char*, unsigned, unsigned);
+
+#endif
--
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