summaryrefslogtreecommitdiff
path: root/libs/mediaScan/src/AbstractMedia.cc
blob: 98c72bb53ba395132268471fc623e726e6c5905b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
/**
 * ======================== legal notice ======================
 * 
 * File:      AbstractMedia.cc
 * Created:   2. Juli 2012, 14
 * Author:    <a href="mailto:geronimo013@gmx.de">Geronimo</a>
 * Project:   libMediaScan: mediatypes and media scanning
 * 
 * CMP - compound media player
 * 
 * is a client/server mediaplayer intended to play any media from any workstation
 * without the need to export or mount shares. cmps is an easy to use backend
 * with a (ready to use) HTML-interface. Additionally the backend supports
 * authentication via HTTP-digest authorization.
 * cmpc is a client with vdr-like osd-menues.
 * 
 * Copyright (c) 2012 Reinhard Mantey, some rights reserved!
 * published under Creative Commons by-sa
 * For details see http://creativecommons.org/licenses/by-sa/3.0/
 * 
 * The cmp project's homepage is at http://projects.vdr-developer.org/projects/cmp
 * 
 * --------------------------------------------------------------
 */
#include <AbstractMedia.h>
#include <Logging.h>
#include <File.h>
#include <Url.h>
#include <Codec.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include <util.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>

cAbstractMedia::cAbstractMedia(const cFile &File, const char *Mime, SupportedMediaType Type)
 : fd(-1)
 , mediaType(Type)
 , mimeType(Mime ? strdup(Mime) : NULL)
 , uri(NULL)
 , logicalPath(NULL)
 , keyPath(File)
{
  uri = keyPath.toURI();
  logicalPath = cUrl::Decoder()->Decode(uri);
}

cAbstractMedia::~cAbstractMedia()
{
  free(mimeType);
  free(uri);
  free(logicalPath);
}

const char *cAbstractMedia::Name(void) const
{
  return keyPath.Name();
}

void cAbstractMedia::Refresh(void)
{
}

size_t cAbstractMedia::ReadChunk(char* Buf, size_t bufSize)
{
  long rv = 0;
  const char *path = AbsolutePath();

  if (fd < 1) { // fd stays open between various calls
     fd = open(path, O_RDONLY | O_LARGEFILE);
     if (fd < 1) {
        esyslog("could not open requested path %s - Error #%d", path, errno);
        return 0;
        }
     }
  isyslog("have filehandle #%d (%s)", fd, path);
  if ((rv = read(fd, Buf, bufSize)) < 0)
     esyslog("ERROR: failed to read from file %s #%d", path, errno);
  else
     isyslog("read %u bytes from file %s", rv, path);
  if (rv < (long) bufSize) { // most probabely end of file
     close(fd);
     }
  return rv;
}

void cAbstractMedia::Reset(void)
{
  if (fd >= 0) {
     close(fd);
     fd = -1;
     }
}

size_t cAbstractMedia::Size(void) const
{
  return keyPath.Size();
}

const char *cAbstractMedia::MediaType2Text(int Type)
{
  switch(Type) {
  case Audio:              return TO_STRING(Audio);
  case Movie:              return TO_STRING(Movie);
  case DVDImage:           return TO_STRING(DVDImage);
  case LegacyVdrRecording: return TO_STRING(LegacyVdrRecording);
  case VdrRecording:       return TO_STRING(VdrRecording);
  case Picture:            return TO_STRING(Picture);
  default:                 return TO_STRING(Invalid);
  }
}

bool cAbstractMedia::NeedsFurtherScan(void) const
{
  return false;
}

const char *cAbstractMedia::AbsolutePath(void) const
{
  return keyPath.AbsolutePath();
}

ulong cAbstractMedia::LastModified(void) const
{
  return keyPath.LastModified();
}

void cAbstractMedia::SetMimeType(const char *MimeType)
{
  if (mimeType == MimeType) return;
  free(mimeType);
  mimeType = strdup(MimeType);
}