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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 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.,
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
**********/
// "liveMedia"
// Copyright (c) 1996-2005 Live Networks, Inc. All rights reserved.
// A file source that is a plain byte stream (rather than frames)
// C++ header
#ifndef _BYTE_STREAM_FILE_SOURCE_HH
#define _BYTE_STREAM_FILE_SOURCE_HH
#ifndef _FRAMED_FILE_SOURCE_HH
#include "FramedFileSource.hh"
#endif
class ByteStreamFileSource: public FramedFileSource {
public:
static ByteStreamFileSource* createNew(UsageEnvironment& env,
char const* fileName,
unsigned preferredFrameSize = 0,
unsigned playTimePerFrame = 0);
// "preferredFrameSize" == 0 means 'no preference'
// "playTimePerFrame" is in microseconds
static ByteStreamFileSource* createNew(UsageEnvironment& env,
FILE* fid,
Boolean deleteFidOnClose = False,
unsigned preferredFrameSize = 0,
unsigned playTimePerFrame = 0);
// an alternative version of "createNew()" that's used if you already have
// an open file.
u_int64_t fileSize() const { return fFileSize; }
// 0 means zero-length, unbounded, or unknown
void seekToByteAbsolute(u_int64_t byteNumber);
void seekToByteRelative(int64_t offset);
protected:
ByteStreamFileSource(UsageEnvironment& env,
FILE* fid, Boolean deleteFidOnClose,
unsigned preferredFrameSize,
unsigned playTimePerFrame);
// called only by createNew()
virtual ~ByteStreamFileSource();
private:
// redefined virtual functions:
virtual void doGetNextFrame();
private:
unsigned fPreferredFrameSize;
unsigned fPlayTimePerFrame;
unsigned fLastPlayTime;
u_int64_t fFileSize;
Boolean fDeleteFidOnClose;
};
#endif
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