Line data Source code
1 : /* Copyright (C) 2021 Wildfire Games.
2 : * This file is part of 0 A.D.
3 : *
4 : * 0 A.D. is free software: you can redistribute it and/or modify
5 : * it under the terms of the GNU General Public License as published by
6 : * the Free Software Foundation, either version 2 of the License, or
7 : * (at your option) any later version.
8 : *
9 : * 0 A.D. is distributed in the hope that it will be useful,
10 : * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 : * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 : * GNU General Public License for more details.
13 : *
14 : * You should have received a copy of the GNU General Public License
15 : * along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
16 : */
17 : #ifndef INCLUDED_OGG
18 : #define INCLUDED_OGG
19 :
20 : #include "lib/config2.h"
21 :
22 : #if CONFIG2_AUDIO
23 :
24 : #include "lib/external_libraries/openal.h"
25 : #include "lib/file/vfs/vfs.h"
26 :
27 0 : class OggStream
28 : {
29 : public:
30 0 : virtual ~OggStream() { }
31 : virtual ALenum Format() = 0;
32 : virtual ALsizei SamplingRate() = 0;
33 : virtual bool atFileEOF() = 0;
34 : virtual Status ResetFile() = 0;
35 : virtual Status Close() = 0;
36 :
37 : /**
38 : * @return bytes read (<= size) or a (negative) Status
39 : **/
40 : virtual Status GetNextChunk(u8* buffer, size_t size) = 0;
41 : };
42 :
43 : typedef std::shared_ptr<OggStream> OggStreamPtr;
44 :
45 : extern Status OpenOggStream(const OsPath& pathname, OggStreamPtr& stream);
46 :
47 : /**
48 : * A non-streaming OggStream (reading the whole file in advance)
49 : * that can cope with archived/compressed files.
50 : */
51 : extern Status OpenOggNonstream(const PIVFS& vfs, const VfsPath& pathname, OggStreamPtr& stream);
52 :
53 : #endif // CONFIG2_AUDIO
54 :
55 : #endif // INCLUDED_OGG
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