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/MPEG2TransportStreamMultiplexor.hh | 93 ++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 93 insertions(+), 0 deletions(-)
diff --git a/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MPEG2TransportStreamMultiplexor.hh b/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MPEG2TransportStreamMultiplexor.hh
new file mode 100644
index 0000000..91a89a8
--- /dev/null
+++ b/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MPEG2TransportStreamMultiplexor.hh
@@ -0,0 +1,93 @@
+/**********
+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.
+// A class for generating MPEG-2 Transport Stream from one or more input
+// Elementary Stream data sources
+// C++ header
+
+#ifndef _MPEG2_TRANSPORT_STREAM_MULTIPLEXOR_HH
+#define _MPEG2_TRANSPORT_STREAM_MULTIPLEXOR_HH
+
+#ifndef _FRAMED_SOURCE_HH
+#include "FramedSource.hh"
+#endif
+#ifndef _MPEG_1OR2_DEMUX_HH
+#include "MPEG1or2Demux.hh" // for SCR
+#endif
+
+#define PID_TABLE_SIZE 256
+
+class MPEG2TransportStreamMultiplexor: public FramedSource {
+public:
+ Boolean canDeliverNewFrameImmediately() const { return fInputBufferBytesUsed < fInputBufferSize; }
+ // Can be used by a downstream reader to test whether the next call to "doGetNextFrame()"
+ // will deliver data immediately).
+
+protected:
+ MPEG2TransportStreamMultiplexor(UsageEnvironment& env);
+ virtual ~MPEG2TransportStreamMultiplexor();
+
+ virtual void awaitNewBuffer(unsigned char* oldBuffer) = 0;
+ // implemented by subclasses
+
+ void handleNewBuffer(unsigned char* buffer, unsigned bufferSize,
+ int mpegVersion, MPEG1or2Demux::SCR scr, int16_t PID = -1);
+ // called by "awaitNewBuffer()"
+ // Note: For MPEG-4 video, set "mpegVersion" to 4; for H.264 video, set "mpegVersion" to 5.
+ // The buffer is assumed to be a PES packet, with a proper PES header.
+ // If "PID" is not -1, then it (currently, only the low 8 bits) is used as the stream's PID,
+ // otherwise the "stream_id" in the PES header is reused to be the stream's PID.
+
+private:
+ // Redefined virtual functions:
+ virtual void doGetNextFrame();
+
+private:
+ void deliverDataToClient(u_int8_t pid, unsigned char* buffer, unsigned bufferSize,
+ unsigned& startPositionInBuffer);
+
+ void deliverPATPacket();
+ void deliverPMTPacket(Boolean hasChanged);
+
+ void setProgramStreamMap(unsigned frameSize);
+
+protected:
+ Boolean fHaveVideoStreams;
+
+private:
+ unsigned fOutgoingPacketCounter;
+ unsigned fProgramMapVersion;
+ u_int8_t fPreviousInputProgramMapVersion, fCurrentInputProgramMapVersion;
+ // These two fields are used if we see "program_stream_map"s in the input.
+ struct {
+ unsigned counter;
+ u_int8_t streamType; // for use in Program Maps
+ } fPIDState[PID_TABLE_SIZE];
+ u_int8_t fPCR_PID, fCurrentPID;
+ // Note: We map 8-bit stream_ids directly to PIDs
+ MPEG1or2Demux::SCR fPCR;
+ unsigned char* fInputBuffer;
+ unsigned fInputBufferSize, fInputBufferBytesUsed;
+ Boolean fIsFirstAdaptationField;
+};
+
+
+// The CRC calculation function that Transport Streams use. We make this function public
+// here in case it's useful elsewhere:
+u_int32_t calculateCRC(u_int8_t const* data, unsigned dataLength, u_int32_t initialValue = 0xFFFFFFFF);
+
+#endif
--
Gitblit v1.8.0