/*
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 *
 */
// $Id: QTAtom_stsd.h,v 1.7 2003/08/15 23:53:14 sbasu Exp $
//
// QTAtom_stsd:
//   The 'stsd' QTAtom class.

#ifndef QTAtom_stsd_H
#define QTAtom_stsd_H


//
// Includes
#include "QTFile.h"
#include "QTAtom.h"


//
// QTAtom class
class QTAtom_stsd : public QTAtom {

public:
    //
    // Constructors and destructor.
                        QTAtom_stsd(QTFile * File, QTFile::AtomTOCEntry * Atom,
                               Bool16 Debug = false, Bool16 DeepDebug = false);
    virtual             ~QTAtom_stsd(void);


    //
    // Initialization functions.
    virtual Bool16      Initialize(void);
    
    //
    // Accessors.
    Bool16      FindSampleDescription(OSType DataFormat, char ** Buffer, UInt32 * Length);
    UInt16      SampleDescriptionToDataReference(UInt32 SampleDescriptionID);


    //
    // Debugging functions.
    virtual void        DumpAtom(void);


protected:
    //
    // Protected member variables.
    UInt8       fVersion;
    UInt32      fFlags; // 24 bits in the low 3 bytes

    UInt32      fNumEntries;
    char        *fSampleDescriptionTable;
    char        **fTable; // each entry points to the start of a sample
                          // description entry in the above memory area
};

#endif // QTAtom_stsd_H
