/*

 * MP3/MPlayer plugin to VDR (C++)

 *

 * (C) 2001-2005 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_MP3_H

#define ___DECODER_MP3_H

#define DEC_MP3     DEC_ID('M','P','3',' ')

#define DEC_MP3_STR "MP3"

#include <mad.h>

#include <id3tag.h>

#include "decoder.h"

#include "decoder-core.h"

#if MAD_F_FRACBITS != 28

#warning libmad with MAD_F_FRACBITS != 28 not tested

#endif

class cStream;

// ----------------------------------------------------------------

class cScanID3 : public cSongInfo {

private:

  bool keepOpen, *urgent;

  //

  bool Abort(bool result);

  struct id3_tag *GetID3(struct mad_stream *stream, id3_length_t tagsize) const;

  void ParseID3(const struct id3_tag *tag);

  void ParseStr(const struct id3_tag *tag, const char *id, char * &data);

  void ParsePic(const struct id3_tag *tag, const char *id, char * &name);

  int ParseXing(struct mad_bitptr *ptr, unsigned int bitlen) const;

protected:

  cStream *str;

public:

  cScanID3(cStream *Str, bool *Urgent);

  virtual ~cScanID3() {}

  virtual bool DoScan(bool KeepOpen=false);

  virtual void InfoHook(struct mad_header *header) {}

  };

// ----------------------------------------------------------------

class cMP3Decoder : public cDecoder {

private:

  struct Decode ds;

  //

  struct mad_stream *stream;

  struct mad_frame *frame;

  struct mad_synth *synth;

  mad_timer_t playtime, skiptime;

  //

  struct FrameInfo {

    unsigned long long Pos;

    mad_timer_t Time;

    } *fi;

  int framenum, framemax, errcount, mute;

  //

  void Init(void);

  void Clean(void);

  struct Decode *Done(eDecodeStatus status);

  eDecodeStatus DecodeError(bool hdr);

  void MakeSkipTime(mad_timer_t *skiptime, mad_timer_t playtime, int secs, float bsecs);

protected:

  cStream *str;

  cScanID3 *scan;

  bool isStream;

public:

  cMP3Decoder(const char *Filename, bool preinit=true);

  virtual ~cMP3Decoder();

  virtual bool Valid(void);

  virtual cFileInfo *FileInfo(void);

  virtual cSongInfo *SongInfo(bool get);

  virtual cPlayInfo *PlayInfo(void);

  virtual bool Start(void);

  virtual bool Stop(void);

  virtual bool Skip(int Seconds, float bsecs);

  virtual struct Decode *Decode(void);

  };

#endif //___DECODER_MP3_H