Darwin-Streaming-Server/PlaylistBroadcaster.tproj/PlaylistPicker.h

86 lines
3 KiB
C++

#ifndef __playlist_picker__
#define __playlist_picker__
/*
*
* @APPLE_LICENSE_HEADER_START@
*
* Copyright (c) 1999-2008 Apple 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@
*
*/
#include "PLDoubleLinkedList.h"
#include "SimplePlayListElement.h"
#include "OSHeaders.h"
#include "NoRepeat.h"
class PlaylistPicker
{
public:
enum { kMaxBuckets = 10 };
PlaylistPicker(bool doLoop);
PlaylistPicker( UInt32 numBuckets, UInt32 numNoRepeats );
virtual ~PlaylistPicker();
void CleanList();
bool AddToList( const char *name, int weight );
bool AddNode( PLDoubleLinkedListNode<SimplePlayListElement> *node );
char* PickOne();
char* LastPick() { return fLastPick; }
UInt32 GetNumBuckets() { return mBuckets; }
/* changed by emil@popwire.com (see relaod.txt for info) */
UInt32 GetNumMovies() { return mNumToPickFrom; }
bool mRemoveFlag;
bool mStopFlag;
/* ***************************************************** */
SInt32* mPickCounts;
SInt32 mNumToPickFrom;
UInt32 mRecentMoviesListSize;
char* fLastPick;
PLDoubleLinkedList<SimplePlayListElement>* GetBucket( UInt32 myIndex ) { return mElementLists[myIndex]; }
char* GetFirstFile() { return mFirstElement; }
protected:
bool mIsSequentialPicker; // picker picks sequentially?
bool mIsSequentialLooping; // loop over and over?
int mWhichSequentialBucket; // sequential picker picks from list0 or list1?
UInt32 Random();
UInt32 mLastResult;
char* PickFromList( PLDoubleLinkedList<SimplePlayListElement>* list, UInt32 elementIndex );
PLDoubleLinkedList<SimplePlayListElement>* mElementLists[kMaxBuckets];
UInt32 mBuckets;
NoRepeat *mUsedElements;
char* mFirstElement;
};
#endif