/usr/include/CLAM/AudioCodecs_Stream.hxx is in libclam-dev 1.4.0-5build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 | /*
* Copyright (c) 2004 MUSIC TECHNOLOGY GROUP (MTG)
* UNIVERSITAT POMPEU FABRA
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef __AUDIOCODECS_STREAM__
#define __AUDIOCODECS_STREAM__
#include "DataTypes.hxx"
#include "DataTypes.hxx"
#include <vector>
namespace CLAM
{
class AudioFile;
namespace AudioCodecs
{
/**
* Streams provide I/O to and from an audio file of a given format.
* You can get a stream by using a Codec.
* To add support for a different format you must subclass both
* the Codec and the Stream.
* @todo Document Stream methods
*/
class Stream
{
public:
Stream();
virtual ~Stream();
/// Open the stream in read mode
virtual void PrepareReading() = 0;
/// Open the stream in write mode
virtual void PrepareWriting() = 0;
/// Close the stream
virtual void Dispose() = 0;
/// Moves the current position to framePosition.
/// If such functionality is not supported by the stream it will be ignored.
virtual void SeekTo(unsigned long framePosition) {}
/// Returns the current frame position
virtual unsigned long GetFramePosition() const {return mFramePosition;}
protected:
/// Move data from the file to mInterleavedData
virtual void DiskToMemoryTransfer() = 0;
/// Move data from mInterleavedData to the file
virtual void MemoryToDiskTransfer() = 0;
public:
/// Read a picked channel
bool ReadData( int channel, TData* buffer, unsigned nFrames );
/// Read all the channels
bool ReadData( TData** buffers, unsigned nFrames );
/// Read many picked channels
bool ReadData( int* channels, int nchannels,
TData** buffers, unsigned nFrames );
/// Read a picked channel (Do it has sense?)
void WriteData( int channel, const TData* buffer, unsigned nFrames );
/// Read all the channels
void WriteData( TData** const buffers, unsigned nFrames );
/// Read many picked channels (Do it has sense?)
void WriteData( int* channels, int nchannels,
TData** const buffers, unsigned nFrames );
protected:
void SetChannels( unsigned nChannels );
protected:
unsigned mChannels;
std::vector<TData> mInterleavedData;
bool mEOFReached;
unsigned mFramesLastRead;
unsigned long mFramePosition;
private:
void AdjustInterleavedBuffer( unsigned nFrames );
};
}
}
#endif // AudioCodecs_Stream.hxx
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