1 /*
2  * Copyright (C) 2014 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef MIDI_IO_WRAPPER_H_
18 #define MIDI_IO_WRAPPER_H_
19 
20 #include <libsonivox/eas_types.h>
21 
22 #include <media/DataSourceBase.h>
23 
24 namespace android {
25 
26 struct CDataSource;
27 
28 class MidiIoWrapper {
29 public:
30     explicit MidiIoWrapper(const char *path);
31     explicit MidiIoWrapper(int fd, off64_t offset, int64_t size);
32     explicit MidiIoWrapper(CDataSource *csource);
33 
34     ~MidiIoWrapper();
35 
36     int readAt(void *buffer, int offset, int size);
37     int size();
38 
39     EAS_FILE_LOCATOR getLocator();
40 
41 private:
42     int mFd;
43     off64_t mBase;
44     int64_t  mLength;
45     class DataSourceUnwrapper;
46     DataSourceUnwrapper *mDataSource;
47     EAS_FILE mEasFile;
48 };
49 
50 
51 }  // namespace android
52 
53 #endif // MIDI_IO_WRAPPER_H_
54