Kwave::RepairVirtualAudioFile Class Reference

#include <RepairVirtualAudioFile.h>

Inheritance diagram for Kwave::RepairVirtualAudioFile:

Collaboration diagram for Kwave::RepairVirtualAudioFile:

Public Member Functions
	RepairVirtualAudioFile (QIODevice &device, QList< Kwave::RecoverySource *> *repair_list)
virtual	~RepairVirtualAudioFile () Q_DECL_OVERRIDE
virtual qint64	read (char *data, unsigned int nbytes) Q_DECL_OVERRIDE
virtual qint64	length () Q_DECL_OVERRIDE
virtual qint64	write (const char *data, unsigned int nbytes) Q_DECL_OVERRIDE
virtual qint64	seek (qint64 offset, bool is_relative) Q_DECL_OVERRIDE
virtual qint64	tell () Q_DECL_OVERRIDE
Public Member Functions inherited from Kwave::VirtualAudioFile
	VirtualAudioFile (QIODevice &device)
virtual	~VirtualAudioFile ()
virtual void	open (Kwave::VirtualAudioFile *x, AFfilesetup setup)
virtual void	close ()
AFfilehandle &	handle ()
AFvirtualfile *	file ()
long int	lastError ()
QString	lastErrorText ()
virtual void	destroy ()

Private Attributes
qint64	m_position
QList< Kwave::RecoverySource * > *	m_repair_list

Additional Inherited Members
Static Public Member Functions inherited from Kwave::VirtualAudioFile
static Kwave::VirtualAudioFile *	adapter (AFvirtualfile *vfile)

Detailed Description

Definition at line 31 of file RepairVirtualAudioFile.h.

Constructor & Destructor Documentation

RepairVirtualAudioFile()

Kwave::RepairVirtualAudioFile::RepairVirtualAudioFile	(	QIODevice &	device,
		QList< Kwave::RecoverySource *> *	repair_list
	)

Constructor

Parameters

device	QIODevice used as source
repair_list	list of RecoverySource objects for building the new file

Definition at line 27 of file RepairVirtualAudioFile.cpp.

    :Kwave::VirtualAudioFile(device), m_position(0),
     m_repair_list(repair_list)
{
}

~RepairVirtualAudioFile()

Kwave::RepairVirtualAudioFile::~RepairVirtualAudioFile ( )

virtual

Destructor

Definition at line 35 of file RepairVirtualAudioFile.cpp.

References m_repair_list.

{
    if (m_repair_list) {
        while (!m_repair_list->isEmpty()) {
            Kwave::RecoverySource *src = m_repair_list->takeLast();
            if (src) delete src;
        }
        delete m_repair_list;
    }
}

Member Function Documentation

length()

qint64 Kwave::RepairVirtualAudioFile::length ( )

virtual

returns the length of the file

Reimplemented from Kwave::VirtualAudioFile.

Definition at line 74 of file RepairVirtualAudioFile.cpp.

References Kwave::RecoverySource::length(), m_repair_list, and Kwave::RecoverySource::offset().

Referenced by seek().

{
    Q_ASSERT(m_repair_list);
    if (!m_repair_list) return 0;
    Kwave::RecoverySource *last = m_repair_list->last();
    Q_ASSERT(last);
    if (!last) return 0;

    return static_cast<qint64>(last->offset() + last->length());
}

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read()

qint64 Kwave::RepairVirtualAudioFile::read ( char *  data, unsigned int  nbytes  )

virtual

reads a block of data

Reimplemented from Kwave::VirtualAudioFile.

Definition at line 47 of file RepairVirtualAudioFile.cpp.

References m_position, m_repair_list, and Kwave::RecoverySource::read().

{
    Q_ASSERT(m_repair_list);
    Q_ASSERT(data);
    if (!m_repair_list) return 0;
    if (!nbytes) return 0;
    if (!data) return 0;

    bzero(data, nbytes);
    qint64 read_bytes = 0;
    foreach (Kwave::RecoverySource *src, *m_repair_list) {
        Q_ASSERT(src);
        if (!src) continue;
        qint64 len = src->read(m_position, data, nbytes);
        Q_ASSERT(len <= nbytes);
        nbytes     -= len;
        m_position += len;
        data       += len;
        read_bytes += len;

        if (!nbytes) break;
    }

    return read_bytes;
}

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seek()

qint64 Kwave::RepairVirtualAudioFile::seek ( qint64  offset, bool  is_relative  )

virtual

seek to a file position

Reimplemented from Kwave::VirtualAudioFile.

Definition at line 96 of file RepairVirtualAudioFile.cpp.

References length(), and m_position.

{
    if (is_relative)
        m_position += offset;
    else
        m_position = offset;

    return (m_position < length()) ? m_position : -1;
}

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tell()

qint64 Kwave::RepairVirtualAudioFile::tell ( )

virtual

returns the file position

Reimplemented from Kwave::VirtualAudioFile.

Definition at line 107 of file RepairVirtualAudioFile.cpp.

References m_position.

{
    return m_position;
}

write()

qint64 Kwave::RepairVirtualAudioFile::write ( const char *  data, unsigned int  nbytes  )

virtual

writes a block of data

Reimplemented from Kwave::VirtualAudioFile.

Definition at line 86 of file RepairVirtualAudioFile.cpp.

{
    Q_UNUSED(data);
    Q_UNUSED(nbytes);
    qWarning("RepairVirtualAudioFile::write() is forbidden !");
    return 0;
}

Member Data Documentation

m_position

qint64 Kwave::RepairVirtualAudioFile::m_position

private

position within the virtual file

Definition at line 65 of file RepairVirtualAudioFile.h.

Referenced by read(), seek(), and tell().

m_repair_list

QList<Kwave::RecoverySource *>* Kwave::RepairVirtualAudioFile::m_repair_list

private

list of sources for the recovered files

Definition at line 68 of file RepairVirtualAudioFile.h.

Referenced by length(), read(), and ~RepairVirtualAudioFile().

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The documentation for this class was generated from the following files:

• plugins/codec_wav/RepairVirtualAudioFile.h
• plugins/codec_wav/RepairVirtualAudioFile.cpp