| /********** |
| 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) 1996-2020 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 |