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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. |
| | | // MP3 File Sources |
| | | // C++ header |
| | | |
| | | #ifndef _MP3_FILE_SOURCE_HH |
| | | #define _MP3_FILE_SOURCE_HH |
| | | |
| | | #ifndef _FRAMED_FILE_SOURCE_HH |
| | | #include "FramedFileSource.hh" |
| | | #endif |
| | | |
| | | class MP3StreamState; // forward |
| | | |
| | | class MP3FileSource: public FramedFileSource { |
| | | public: |
| | | static MP3FileSource* createNew(UsageEnvironment& env, char const* fileName); |
| | | |
| | | float filePlayTime() const; |
| | | unsigned fileSize() const; |
| | | void setPresentationTimeScale(unsigned scale); |
| | | void seekWithinFile(double seekNPT, double streamDuration); |
| | | // if "streamDuration" is >0.0, then we limit the stream to that duration, before treating it as EOF |
| | | |
| | | protected: |
| | | MP3FileSource(UsageEnvironment& env, FILE* fid); |
| | | // called only by createNew() |
| | | |
| | | virtual ~MP3FileSource(); |
| | | |
| | | protected: |
| | | void assignStream(FILE* fid, unsigned filesize); |
| | | Boolean initializeStream(); |
| | | |
| | | MP3StreamState* streamState() {return fStreamState;} |
| | | |
| | | private: |
| | | // redefined virtual functions: |
| | | virtual void doGetNextFrame(); |
| | | virtual char const* MIMEtype() const; |
| | | virtual void getAttributes() const; |
| | | |
| | | private: |
| | | virtual Boolean doGetNextFrame1(); |
| | | |
| | | private: |
| | | MP3StreamState* fStreamState; |
| | | Boolean fHaveJustInitialized; |
| | | struct timeval fFirstFramePresentationTime; // set on stream init |
| | | Boolean fLimitNumBytesToStream; |
| | | unsigned fNumBytesToStream; // used iff "fLimitNumBytesToStream" is True |
| | | }; |
| | | |
| | | #endif |