MPD  0.20.18
IcyMetaDataParser.hxx
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1 /*
2  * Copyright 2003-2017 The Music Player Daemon Project
3  * http://www.musicpd.org
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License along
16  * with this program; if not, write to the Free Software Foundation, Inc.,
17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18  */
19 
20 #ifndef MPD_ICY_META_DATA_PARSER_HXX
21 #define MPD_ICY_META_DATA_PARSER_HXX
22 
23 #include <stddef.h>
24 
25 struct Tag;
26 
28  size_t data_size, data_rest;
29 
30  size_t meta_size, meta_position;
31  char *meta_data;
32 
33  Tag *tag;
34 
35 public:
36  IcyMetaDataParser():data_size(0) {}
38  Reset();
39  }
40 
45  void Start(size_t _data_size) {
46  data_size = data_rest = _data_size;
47  meta_size = 0;
48  tag = nullptr;
49  }
50 
54  void Reset();
55 
59  bool IsDefined() const {
60  return data_size > 0;
61  }
62 
69  size_t Data(size_t length);
70 
76  size_t Meta(const void *data, size_t length);
77 
83  size_t ParseInPlace(void *data, size_t length);
84 
85  Tag *ReadTag() {
86  Tag *result = tag;
87  tag = nullptr;
88  return result;
89  }
90 };
91 
92 #endif
void Start(size_t _data_size)
Initialize an enabled icy_metadata object with the specified data_size (from the icy-metaint HTTP res...
size_t ParseInPlace(void *data, size_t length)
Parse data and eliminate metadata.
bool IsDefined() const
Checks whether the icy_metadata object is enabled.
The meta information about a song file.
Definition: Tag.hxx:34
size_t Data(size_t length)
Evaluates data.
size_t Meta(const void *data, size_t length)
Reads metadata from the stream.
void Reset()
Resets the icy_metadata.