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/MPEG1or2Demux.hh | 150 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 150 insertions(+), 0 deletions(-)
diff --git a/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MPEG1or2Demux.hh b/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MPEG1or2Demux.hh
new file mode 100644
index 0000000..44ed8a1
--- /dev/null
+++ b/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MPEG1or2Demux.hh
@@ -0,0 +1,150 @@
+/**********
+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.
+// Demultiplexer for a MPEG 1 or 2 Program Stream
+// C++ header
+
+#ifndef _MPEG_1OR2_DEMUX_HH
+#define _MPEG_1OR2_DEMUX_HH
+
+#ifndef _FRAMED_SOURCE_HH
+#include "FramedSource.hh"
+#endif
+
+class MPEG1or2DemuxedElementaryStream; // forward
+
+class MPEG1or2Demux: public Medium {
+public:
+ static MPEG1or2Demux* createNew(UsageEnvironment& env,
+ FramedSource* inputSource,
+ Boolean reclaimWhenLastESDies = False);
+ // If "reclaimWhenLastESDies" is True, the the demux is deleted when
+ // all "MPEG1or2DemuxedElementaryStream"s that we created get deleted.
+
+ MPEG1or2DemuxedElementaryStream* newElementaryStream(u_int8_t streamIdTag);
+
+ // Specialized versions of the above for audio and video:
+ MPEG1or2DemuxedElementaryStream* newAudioStream();
+ MPEG1or2DemuxedElementaryStream* newVideoStream();
+
+ // A hack for getting raw, undemuxed PES packets from the Program Stream:
+ MPEG1or2DemuxedElementaryStream* newRawPESStream();
+
+ void getNextFrame(u_int8_t streamIdTag,
+ unsigned char* to, unsigned maxSize,
+ FramedSource::afterGettingFunc* afterGettingFunc,
+ void* afterGettingClientData,
+ FramedSource::onCloseFunc* onCloseFunc,
+ void* onCloseClientData);
+ // similar to FramedSource::getNextFrame(), except that it also
+ // takes a stream id tag as parameter.
+
+ void stopGettingFrames(u_int8_t streamIdTag);
+ // similar to FramedSource::stopGettingFrames(), except that it also
+ // takes a stream id tag as parameter.
+
+ static void handleClosure(void* clientData);
+ // This should be called (on ourself) if the source is discovered
+ // to be closed (i.e., no longer readable)
+
+ FramedSource* inputSource() const { return fInputSource; }
+
+ class SCR {
+ public:
+ SCR();
+
+ u_int8_t highBit;
+ u_int32_t remainingBits;
+ u_int16_t extension;
+
+ Boolean isValid;
+ };
+ SCR& lastSeenSCR() { return fLastSeenSCR; }
+
+ unsigned char mpegVersion() const { return fMPEGversion; }
+
+ void flushInput(); // should be called before any 'seek' on the underlying source
+
+private:
+ MPEG1or2Demux(UsageEnvironment& env,
+ FramedSource* inputSource, Boolean reclaimWhenLastESDies);
+ // called only by createNew()
+ virtual ~MPEG1or2Demux();
+
+ void registerReadInterest(u_int8_t streamIdTag,
+ unsigned char* to, unsigned maxSize,
+ FramedSource::afterGettingFunc* afterGettingFunc,
+ void* afterGettingClientData,
+ FramedSource::onCloseFunc* onCloseFunc,
+ void* onCloseClientData);
+
+ Boolean useSavedData(u_int8_t streamIdTag,
+ unsigned char* to, unsigned maxSize,
+ FramedSource::afterGettingFunc* afterGettingFunc,
+ void* afterGettingClientData);
+
+ static void continueReadProcessing(void* clientData,
+ unsigned char* ptr, unsigned size,
+ struct timeval presentationTime);
+ void continueReadProcessing();
+
+private:
+ friend class MPEG1or2DemuxedElementaryStream;
+ void noteElementaryStreamDeletion(MPEG1or2DemuxedElementaryStream* es);
+
+private:
+ FramedSource* fInputSource;
+ SCR fLastSeenSCR;
+ unsigned char fMPEGversion;
+
+ unsigned char fNextAudioStreamNumber;
+ unsigned char fNextVideoStreamNumber;
+ Boolean fReclaimWhenLastESDies;
+ unsigned fNumOutstandingESs;
+
+ // A descriptor for each possible stream id tag:
+ typedef struct OutputDescriptor {
+ // input parameters
+ unsigned char* to; unsigned maxSize;
+ FramedSource::afterGettingFunc* fAfterGettingFunc;
+ void* afterGettingClientData;
+ FramedSource::onCloseFunc* fOnCloseFunc;
+ void* onCloseClientData;
+
+ // output parameters
+ unsigned frameSize; struct timeval presentationTime;
+ class SavedData; // forward
+ SavedData* savedDataHead;
+ SavedData* savedDataTail;
+ unsigned savedDataTotalSize;
+
+ // status parameters
+ Boolean isPotentiallyReadable;
+ Boolean isCurrentlyActive;
+ Boolean isCurrentlyAwaitingData;
+ } OutputDescriptor_t;
+ OutputDescriptor_t fOutput[256];
+
+ unsigned fNumPendingReads;
+ Boolean fHaveUndeliveredData;
+
+private: // parsing state
+ class MPEGProgramStreamParser* fParser;
+ friend class MPEGProgramStreamParser; // hack
+};
+
+#endif
--
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