stream.h
author nathan
Sat, 29 Dec 2007 14:49:09 +0100
branchtrunk
changeset 2 4c1f7b705009
parent 0 474a1293c3c0
child 34 afc13760179b
permissions -rw-r--r--
release 0.10.1
     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