stream.h
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changeset 0 474a1293c3c0
child 34 afc13760179b
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-1:000000000000 0:474a1293c3c0
       
     1 /*
       
     2  * MP3/MPlayer plugin to VDR (C++)
       
     3  *
       
     4  * (C) 2001-2006 Stefan Huelswitt <s.huelswitt@gmx.de>
       
     5  *
       
     6  * This code is free software; you can redistribute it and/or
       
     7  * modify it under the terms of the GNU General Public License
       
     8  * as published by the Free Software Foundation; either version 2
       
     9  * of the License, or (at your option) any later version.
       
    10  *
       
    11  * This code is distributed in the hope that it will be useful,
       
    12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
       
    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
       
    14  * GNU General Public License for more details.
       
    15  *
       
    16  * You should have received a copy of the GNU General Public License
       
    17  * along with this program; if not, write to the Free Software
       
    18  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
       
    19  * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
       
    20  */
       
    21 
       
    22 #ifndef ___STREAM_H
       
    23 #define ___STREAM_H
       
    24 
       
    25 #include "decoder.h"
       
    26 
       
    27 class cNet;
       
    28 
       
    29 // ----------------------------------------------------------------
       
    30 
       
    31 #if 0
       
    32 class cIO : public cFileInfo {
       
    33 protected:
       
    34   bool log;
       
    35   unsigned long long readpos;
       
    36 public:
       
    37   cIO(const char *Filename, bool Log);
       
    38   virtual ~cIO();
       
    39   virtual bool Open(void)=0;
       
    40   virtual void Close(void)=0;
       
    41   virtual int Read(unsigned char *Data, int Size)=0;
       
    42   virtual unsigned char *StreamInit(int Size) { return 0; }
       
    43   virtual int Stream(const unsigned char *rest) { return -1; }
       
    44   virtual bool Seek(unsigned long long pos, int whence) { return -1; }
       
    45   virtual unsigned long long Tell(void) { return readpos; }
       
    46   };
       
    47 
       
    48 // ----------------------------------------------------------------
       
    49 
       
    50 class cStreamIO {
       
    51 private:
       
    52   int size, fill;
       
    53   unsigned char *data;
       
    54 protected:
       
    55   void StreamClear(bool all);
       
    56 public:
       
    57   cStreamIO(void);
       
    58   virtual ~cStreamIO();
       
    59   virtual unsigned char *StreamInit(int Size);
       
    60   virtual int Stream(const unsigned char *rest);
       
    61   virtual int Read(unsigned char *Data, int Size)=0;
       
    62   };
       
    63 
       
    64 // ----------------------------------------------------------------
       
    65 
       
    66 class cFileIO : public cIO, public cStreamIO {
       
    67 protected:
       
    68   int fd;
       
    69 public:
       
    70   cFileIO(const char *Filename, bool Log);
       
    71   virtual ~cFileIO();
       
    72   virtual bool Open(void);
       
    73   virtual void Close(void);
       
    74   virtual int Read(unsigned char *Data, int Size);
       
    75   virtual bool Seek(unsigned long long pos, int whence);
       
    76   };
       
    77 #endif
       
    78 
       
    79 // ----------------------------------------------------------------
       
    80 
       
    81 class cStream : public cFileInfo {
       
    82 private:
       
    83   int fd;
       
    84   bool ismmap;
       
    85 protected:
       
    86   unsigned char *buffer;
       
    87   unsigned long long readpos, buffpos;
       
    88   unsigned long fill;
       
    89 public:
       
    90   cStream(const char *Filename);
       
    91   virtual ~cStream();
       
    92   virtual bool Open(bool log=true);
       
    93   virtual void Close(void);
       
    94   virtual bool Stream(unsigned char *&data, unsigned long &len, const unsigned char *rest=NULL);
       
    95   virtual bool Seek(unsigned long long pos=0);
       
    96   virtual unsigned long long BufferPos(void) { return buffpos; }
       
    97   };
       
    98 
       
    99 // ----------------------------------------------------------------
       
   100 
       
   101 class cNetStream : public cStream {
       
   102 private:
       
   103   cNet *net;
       
   104   char *host, *path, *auth;
       
   105   int port, cc;
       
   106   //
       
   107   char *icyName, *icyUrl, *icyTitle;
       
   108   int metaInt, metaCnt;
       
   109   bool icyChanged;
       
   110   //
       
   111   bool ParseURL(const char *line, bool log);
       
   112   bool ParseURLFile(const char *name, bool log);
       
   113   bool SendRequest(void);
       
   114   bool GetHTTPResponse(void);
       
   115   bool ParseHeader(const char *buff, const char *name, char **value);
       
   116   bool ParseMetaData(void);
       
   117   char *ParseMetaString(const char *buff, const char *name, char **value);
       
   118 public:
       
   119   cNetStream(const char *Filename);
       
   120   virtual ~cNetStream();
       
   121   virtual bool Open(bool log=true);
       
   122   virtual void Close(void);
       
   123   virtual bool Stream(unsigned char *&data, unsigned long &len, const unsigned char *rest=NULL);
       
   124   virtual bool Seek(unsigned long long pos=0);
       
   125   bool Valid(void) { return ParseURLFile(Filename,false); }
       
   126   const char *IcyName(void) const { return icyName; }
       
   127   const char *IcyUrl(void) const { return icyUrl; }
       
   128   const char *IcyTitle(void) const { return icyTitle; }
       
   129   bool IcyChanged(void);
       
   130   };
       
   131 
       
   132 #endif //___STREAM_H