70 lines
2.2 KiB
C++
Executable File
70 lines
2.2 KiB
C++
Executable 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 2.1 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) 1996-2015 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
|