1/*
2**
3** Copyright 2009, The Android Open Source Project
4**
5** Licensed under the Apache License, Version 2.0 (the "License");
6** you may not use this file except in compliance with the License.
7** You may obtain a copy of the License at
8**
9**     http://www.apache.org/licenses/LICENSE-2.0
10**
11** Unless required by applicable law or agreed to in writing, software
12** distributed under the License is distributed on an "AS IS" BASIS,
13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14** See the License for the specific language governing permissions and
15** limitations under the License.
16*/
17
18#ifndef ANDROID_MIDIMETADATARETRIEVER_H
19#define ANDROID_MIDIMETADATARETRIEVER_H
20
21#include <utils/threads.h>
22#include <utils/Errors.h>
23#include <media/MediaMetadataRetrieverInterface.h>
24
25#include "MidiFile.h"
26
27namespace android {
28
29class MidiMetadataRetriever : public MediaMetadataRetrieverInterface {
30public:
31                                   MidiMetadataRetriever() {}
32                                   ~MidiMetadataRetriever() {}
33
34    virtual status_t                setDataSource(
35            const char *url, const KeyedVector<String8, String8> *headers);
36
37    virtual status_t                setDataSource(int fd, int64_t offset, int64_t length);
38    virtual const char*             extractMetadata(int keyCode);
39
40private:
41    static const uint32_t MAX_METADATA_STRING_LENGTH = 128;
42    void clearMetadataValues();
43
44    Mutex               mLock;
45    sp<MidiFile>        mMidiPlayer;
46    char                mMetadataValues[1][MAX_METADATA_STRING_LENGTH];
47};
48
49}; // namespace android
50
51#endif // ANDROID_MIDIMETADATARETRIEVER_H
52