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/*
* MP3/MPlayer plugin to VDR (C++)
*
* (C) 2001-2009 Stefan Huelswitt <s.huelswitt@gmx.de>
*
* This code 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 code 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.
* Or, point your browser to http://www.gnu.org/copyleft/gpl.html
*/
#ifndef ___DECODER_H
#define ___DECODER_H
#include <vdr/thread.h>
#include <vdr/tools.h>
// ----------------------------------------------------------------
class cCacheData;
class cFileObj;
extern int MakeHashBuff(const char *buff, int len);
#define MakeHash(str) MakeHashBuff((str),strlen(str))
// ----------------------------------------------------------------
class cSongInfo {
private:
bool infoDone, utf8clean;
protected:
void Clear(void);
void Set(cSongInfo *si, bool update=false);
void FakeTitle(const char *filename, const char *extention=0);
void InfoDone(void) { infoDone=true; }
public:
cSongInfo(void);
~cSongInfo();
bool HasInfo(void) { return infoDone; }
bool Utf8Clean(void) { return utf8clean; }
void ConvertToSys(void);
// Song
char *Title, *Artist, *Album;
int Year, Frames, Total;
int SampleFreq, Channels, Bitrate, MaxBitrate, ChMode;
// Normalize
double Level, Peak;
// Decoder
int DecoderID;
};
// ----------------------------------------------------------------
class cFileInfo {
private:
bool infoDone;
int removable;
protected:
void Clear(void);
void Set(cFileInfo *fi);
void InfoDone(void) { infoDone=true; }
public:
cFileInfo(void);
cFileInfo(const char *Name);
~cFileInfo();
bool FileInfo(bool log=true);
bool HasInfo(void) { return infoDone; }
bool Removable(void);
//
char *Filename, *FsID;
unsigned long long Filesize;
time_t CTime;
long FsType;
};
// ----------------------------------------------------------------
class cPlayInfo {
public:
int Index, Total;
};
// ----------------------------------------------------------------
class cDecoder {
protected:
char *filename;
cMutex lock, locklock;
int locked;
bool urgentLock;
//
cPlayInfo pi;
bool playing;
//
void Lock(bool urgent=false);
void Unlock(void);
bool TryLock(void);
public:
cDecoder(const char *Filename);
virtual ~cDecoder();
//
virtual cFileInfo *FileInfo(void) { return 0; }
virtual cSongInfo *SongInfo(bool get) { return 0; }
virtual cPlayInfo *PlayInfo(void) { return 0; }
//
virtual bool Valid(void)=0;
virtual bool IsStream(void) { return false; }
virtual bool Start(void)=0;
virtual bool Stop(void)=0;
virtual bool Skip(int Seconds, float bsecs) { return false; }
virtual struct Decode *Decode(void)=0;
};
// ----------------------------------------------------------------
class cDecoders {
public:
static cDecoder *FindDecoder(cFileObj *Obj);
static const char *ID2Str(int id);
static int Str2ID(const char *str);
};
// ----------------------------------------------------------------
#define CACHELINES 32
class cInfoCache : public cThread {
private:
cMutex lock;
cList<cCacheData> lists[CACHELINES];
time_t lasttime, lastpurge;
bool modified, lastmod;
//
char *CacheFile(void);
void AddEntry(cCacheData *dat);
void DelEntry(cCacheData *dat);
cCacheData *FirstEntry(int hash);
void Modified(void) { modified=lastmod=true; }
protected:
virtual void Action(void);
public:
cInfoCache(void);
void Shutdown(void);
void Save(bool force=false);
void Load(void);
bool Purge(void);
void Cache(cSongInfo *info, cFileInfo *file);
cCacheData *Search(cFileInfo *file);
};
extern cInfoCache InfoCache;
extern char *cachedir;
#endif //___DECODER_H
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