From 3cf4aad7d34ad4f59b8860f041d83fd8c2b372bc Mon Sep 17 00:00:00 2001
From: jiaojizu <jiaojizu@454eff88-639b-444f-9e54-f578c98de674>
Date: 星期三, 08 三月 2017 13:28:54 +0800
Subject: [PATCH]
---
VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/H264or5VideoStreamFramer.hh | 87 +++++++++++++++++++++++++++++++++++++++++++
1 files changed, 87 insertions(+), 0 deletions(-)
diff --git a/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/H264or5VideoStreamFramer.hh b/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/H264or5VideoStreamFramer.hh
new file mode 100644
index 0000000..ff6481e
--- /dev/null
+++ b/VisitFace/RtspNativeCodec/app/libs/live555/include/liveMedia/H264or5VideoStreamFramer.hh
@@ -0,0 +1,87 @@
+/**********
+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 filter that breaks up a H.264 or H.265 Video Elementary Stream into NAL units.
+// C++ header
+
+#ifndef _H264_OR_5_VIDEO_STREAM_FRAMER_HH
+#define _H264_OR_5_VIDEO_STREAM_FRAMER_HH
+
+#ifndef _MPEG_VIDEO_STREAM_FRAMER_HH
+#include "MPEGVideoStreamFramer.hh"
+#endif
+
+class H264or5VideoStreamFramer: public MPEGVideoStreamFramer {
+public:
+ void getVPSandSPSandPPS(u_int8_t*& vps, unsigned& vpsSize,
+ u_int8_t*& sps, unsigned& spsSize,
+ u_int8_t*& pps, unsigned& ppsSize) const {
+ // Returns pointers to copies of the most recently seen VPS (video parameter set)
+ // SPS (sequence parameter set) and PPS (picture parameter set) NAL units.
+ // (NULL pointers are returned if the NAL units have not yet been seen.)
+ vps = fLastSeenVPS; vpsSize = fLastSeenVPSSize;
+ sps = fLastSeenSPS; spsSize = fLastSeenSPSSize;
+ pps = fLastSeenPPS; ppsSize = fLastSeenPPSSize;
+ }
+
+ void setVPSandSPSandPPS(u_int8_t* vps, unsigned vpsSize,
+ u_int8_t* sps, unsigned spsSize,
+ u_int8_t* pps, unsigned ppsSize) {
+ // Assigns copies of the VPS, SPS and PPS NAL units. If this function is not called,
+ // then these NAL units are assigned only if/when they appear in the input stream.
+ saveCopyOfVPS(vps, vpsSize);
+ saveCopyOfSPS(sps, spsSize);
+ saveCopyOfPPS(pps, ppsSize);
+ }
+
+protected:
+ H264or5VideoStreamFramer(int hNumber, // 264 or 265
+ UsageEnvironment& env, FramedSource* inputSource,
+ Boolean createParser, Boolean includeStartCodeInOutput);
+ // We're an abstract base class.
+ virtual ~H264or5VideoStreamFramer();
+
+ void saveCopyOfVPS(u_int8_t* from, unsigned size);
+ void saveCopyOfSPS(u_int8_t* from, unsigned size);
+ void saveCopyOfPPS(u_int8_t* from, unsigned size);
+
+ void setPresentationTime() { fPresentationTime = fNextPresentationTime; }
+
+ Boolean isVPS(u_int8_t nal_unit_type);
+ Boolean isSPS(u_int8_t nal_unit_type);
+ Boolean isPPS(u_int8_t nal_unit_type);
+ Boolean isVCL(u_int8_t nal_unit_type);
+
+protected:
+ int fHNumber;
+ u_int8_t* fLastSeenVPS;
+ unsigned fLastSeenVPSSize;
+ u_int8_t* fLastSeenSPS;
+ unsigned fLastSeenSPSSize;
+ u_int8_t* fLastSeenPPS;
+ unsigned fLastSeenPPSSize;
+ struct timeval fNextPresentationTime; // the presentation time to be used for the next NAL unit to be parsed/delivered after this
+ friend class H264or5VideoStreamParser; // hack
+};
+
+// A general routine for making a copy of a (H.264 or H.265) NAL unit,
+// removing 'emulation' bytes from the copy:
+unsigned removeH264or5EmulationBytes(u_int8_t* to, unsigned toMaxSize,
+ u_int8_t const* from, unsigned fromSize);
+ // returns the size of the copy; it will be <= min(toMaxSize,fromSize)
+
+#endif
--
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