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/MPEG4VideoStreamDiscreteFramer.hh | 73 ++++++++++++++++++++++++++++++++++++
1 files changed, 73 insertions(+), 0 deletions(-)
diff --git a/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MPEG4VideoStreamDiscreteFramer.hh b/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MPEG4VideoStreamDiscreteFramer.hh
new file mode 100644
index 0000000..4d378cb
--- /dev/null
+++ b/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/MPEG4VideoStreamDiscreteFramer.hh
@@ -0,0 +1,73 @@
+/**********
+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 simplified version of "MPEG4VideoStreamFramer" that takes only complete,
+// discrete frames (rather than an arbitrary byte stream) as input.
+// This avoids the parsing and data copying overhead of the full
+// "MPEG4VideoStreamFramer".
+// C++ header
+
+#ifndef _MPEG4_VIDEO_STREAM_DISCRETE_FRAMER_HH
+#define _MPEG4_VIDEO_STREAM_DISCRETE_FRAMER_HH
+
+#ifndef _MPEG4_VIDEO_STREAM_FRAMER_HH
+#include "MPEG4VideoStreamFramer.hh"
+#endif
+
+class MPEG4VideoStreamDiscreteFramer: public MPEG4VideoStreamFramer {
+public:
+ static MPEG4VideoStreamDiscreteFramer*
+ createNew(UsageEnvironment& env, FramedSource* inputSource, Boolean leavePresentationTimesUnmodified = False);
+
+protected:
+ MPEG4VideoStreamDiscreteFramer(UsageEnvironment& env,
+ FramedSource* inputSource, Boolean leavePresentationTimesUnmodified);
+ // called only by createNew()
+ virtual ~MPEG4VideoStreamDiscreteFramer();
+
+protected:
+ // redefined virtual functions:
+ virtual void doGetNextFrame();
+
+protected:
+ static void afterGettingFrame(void* clientData, unsigned frameSize,
+ unsigned numTruncatedBytes,
+ struct timeval presentationTime,
+ unsigned durationInMicroseconds);
+ void afterGettingFrame1(unsigned frameSize,
+ unsigned numTruncatedBytes,
+ struct timeval presentationTime,
+ unsigned durationInMicroseconds);
+
+ Boolean getNextFrameBit(u_int8_t& result);
+ Boolean getNextFrameBits(unsigned numBits, u_int32_t& result);
+ // Which are used by:
+ void analyzeVOLHeader();
+
+protected:
+ Boolean fLeavePresentationTimesUnmodified;
+ u_int32_t vop_time_increment_resolution;
+ unsigned fNumVTIRBits;
+ // # of bits needed to count to "vop_time_increment_resolution"
+ struct timeval fLastNonBFramePresentationTime;
+ unsigned fLastNonBFrameVop_time_increment;
+
+private:
+ unsigned fNumBitsSeenSoFar; // used by the getNextFrameBit*() routines
+};
+
+#endif
--
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