1 /*
2  Copyright (c) 2013 yvt
3 
4  This file is part of OpenSpades.
5 
6  OpenSpades is free software: you can redistribute it and/or modify
7  it under the terms of the GNU General Public License as published by
8  the Free Software Foundation, either version 3 of the License, or
9  (at your option) any later version.
10 
11  OpenSpades 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 OpenSpades.  If not, see <http://www.gnu.org/licenses/>.
18 
19  */
20 
21 #include <memory>
22 #include <vector>
23 
24 #include "IAudioStream.h"
25 
26 typedef struct OggOpusFile OggOpusFile;
27 typedef struct OpusFileCallbacks OpusFileCallbacks;
28 
29 namespace spades {
30 	class OpusAudioStream : public IAudioStream {
31 
32 		IStream *stream;
33 		bool autoClose;
34 
35 		OggOpusFile *opusFile;
36 		std::unique_ptr<OpusFileCallbacks> opusCallback;
37 
38 		int channels;
39 
40 		int subsamplePosition;
41 		std::vector<float> currentSample;
42 
43 	public:
44 		OpusAudioStream(IStream *, bool autoClose);
45 		~OpusAudioStream();
46 
47 		uint64_t GetLength() override;
48 		int GetSamplingFrequency() override;
49 		SampleFormat GetSampleFormat() override;
50 		int GetNumChannels() override;
51 
52 		int ReadByte() override;
53 		size_t Read(void *, size_t bytes) override;
54 
55 		uint64_t GetPosition() override;
56 		void SetPosition(uint64_t) override;
57 	};
58 }
59