New file |
| | |
| | | /********** |
| | | 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 passes through (unchanged) chunks that contain an integral number |
| | | // of MPEG-2 Transport Stream packets, but returning (in "fDurationInMicroseconds") |
| | | // an updated estimate of the time gap between chunks. |
| | | // C++ header |
| | | |
| | | #ifndef _MPEG2_TRANSPORT_STREAM_FRAMER_HH |
| | | #define _MPEG2_TRANSPORT_STREAM_FRAMER_HH |
| | | |
| | | #ifndef _FRAMED_FILTER_HH |
| | | #include "FramedFilter.hh" |
| | | #endif |
| | | |
| | | #ifndef _HASH_TABLE_HH |
| | | #include "HashTable.hh" |
| | | #endif |
| | | |
| | | class MPEG2TransportStreamFramer: public FramedFilter { |
| | | public: |
| | | static MPEG2TransportStreamFramer* |
| | | createNew(UsageEnvironment& env, FramedSource* inputSource); |
| | | |
| | | u_int64_t tsPacketCount() const { return fTSPacketCount; } |
| | | |
| | | void changeInputSource(FramedSource* newInputSource) { fInputSource = newInputSource; } |
| | | |
| | | void clearPIDStatusTable(); |
| | | void setNumTSPacketsToStream(unsigned long numTSRecordsToStream); |
| | | void setPCRLimit(float pcrLimit); |
| | | |
| | | protected: |
| | | MPEG2TransportStreamFramer(UsageEnvironment& env, FramedSource* inputSource); |
| | | // called only by createNew() |
| | | virtual ~MPEG2TransportStreamFramer(); |
| | | |
| | | private: |
| | | // Redefined virtual functions: |
| | | virtual void doGetNextFrame(); |
| | | virtual void doStopGettingFrames(); |
| | | |
| | | private: |
| | | static void afterGettingFrame(void* clientData, unsigned frameSize, |
| | | unsigned numTruncatedBytes, |
| | | struct timeval presentationTime, |
| | | unsigned durationInMicroseconds); |
| | | void afterGettingFrame1(unsigned frameSize, |
| | | struct timeval presentationTime); |
| | | |
| | | Boolean updateTSPacketDurationEstimate(unsigned char* pkt, double timeNow); |
| | | |
| | | private: |
| | | u_int64_t fTSPacketCount; |
| | | double fTSPacketDurationEstimate; |
| | | HashTable* fPIDStatusTable; |
| | | u_int64_t fTSPCRCount; |
| | | Boolean fLimitNumTSPacketsToStream; |
| | | unsigned long fNumTSPacketsToStream; // used iff "fLimitNumTSPacketsToStream" is True |
| | | Boolean fLimitTSPacketsToStreamByPCR; |
| | | float fPCRLimit; // used iff "fLimitTSPacketsToStreamByPCR" is True |
| | | }; |
| | | |
| | | #endif |