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| | | /********** |
| | | 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 an MPEG-4 video elementary stream into |
| | | // frames for: |
| | | // - Visual Object Sequence (VS) Header + Visual Object (VO) Header |
| | | // + Video Object Layer (VOL) Header |
| | | // - Group of VOP (GOV) Header |
| | | // - VOP frame |
| | | // C++ header |
| | | |
| | | #ifndef _MPEG4_VIDEO_STREAM_FRAMER_HH |
| | | #define _MPEG4_VIDEO_STREAM_FRAMER_HH |
| | | |
| | | #ifndef _MPEG_VIDEO_STREAM_FRAMER_HH |
| | | #include "MPEGVideoStreamFramer.hh" |
| | | #endif |
| | | |
| | | class MPEG4VideoStreamFramer: public MPEGVideoStreamFramer { |
| | | public: |
| | | static MPEG4VideoStreamFramer* |
| | | createNew(UsageEnvironment& env, FramedSource* inputSource); |
| | | |
| | | u_int8_t profile_and_level_indication() const { |
| | | return fProfileAndLevelIndication; |
| | | } |
| | | |
| | | unsigned char* getConfigBytes(unsigned& numBytes) const; |
| | | |
| | | void setConfigInfo(u_int8_t profileAndLevelIndication, char const* configStr); |
| | | // Assigns the "profile_and_level_indication" number, and the 'config' bytes. |
| | | // If this function is not called, then this data is only assigned later, when it appears in the input stream. |
| | | |
| | | protected: |
| | | MPEG4VideoStreamFramer(UsageEnvironment& env, |
| | | FramedSource* inputSource, |
| | | Boolean createParser = True); |
| | | // called only by createNew(), or by subclass constructors |
| | | virtual ~MPEG4VideoStreamFramer(); |
| | | |
| | | void startNewConfig(); |
| | | void appendToNewConfig(unsigned char* newConfigBytes, |
| | | unsigned numNewBytes); |
| | | void completeNewConfig(); |
| | | |
| | | private: |
| | | // redefined virtual functions: |
| | | virtual Boolean isMPEG4VideoStreamFramer() const; |
| | | |
| | | protected: |
| | | u_int8_t fProfileAndLevelIndication; |
| | | unsigned char* fConfigBytes; |
| | | unsigned fNumConfigBytes; |
| | | |
| | | private: |
| | | unsigned char* fNewConfigBytes; |
| | | unsigned fNumNewConfigBytes; |
| | | friend class MPEG4VideoStreamParser; // hack |
| | | }; |
| | | |
| | | #endif |