StagefrightMetadataRetriever.h revision 16afe2fb439cab6125bb46a07a8078d4ce1c1ea5 
1/*
2 * Copyright (C) 2010 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 STAGEFRIGHT_METADATA_RETRIEVER_H_
18
19#define STAGEFRIGHT_METADATA_RETRIEVER_H_
20
21#include <media/MediaMetadataRetrieverInterface.h>
22
23#include <media/stagefright/OMXClient.h>
24#include <utils/KeyedVector.h>
25
26namespace android {
27
28struct DataSource;
29class MediaExtractor;
30
31struct StagefrightMetadataRetriever : public MediaMetadataRetrieverInterface {
32    StagefrightMetadataRetriever();
33    virtual ~StagefrightMetadataRetriever();
34
35    virtual status_t setDataSource(const char *url);
36    virtual status_t setDataSource(int fd, int64_t offset, int64_t length);
37
38    virtual VideoFrame *getFrameAtTime(int64_t timeUs, int option);
39    virtual MediaAlbumArt *extractAlbumArt();
40    virtual const char *extractMetadata(int keyCode);
41
42private:
43    OMXClient mClient;
44    sp<DataSource> mSource;
45    sp<MediaExtractor> mExtractor;
46
47    bool mParsedMetaData;
48    KeyedVector<int, String8> mMetaData;
49    MediaAlbumArt *mAlbumArt;
50
51    void parseMetaData();
52
53    StagefrightMetadataRetriever(const StagefrightMetadataRetriever &);
54
55    StagefrightMetadataRetriever &operator=(
56            const StagefrightMetadataRetriever &);
57};
58
59}  // namespace android
60
61#endif  // STAGEFRIGHT_METADATA_RETRIEVER_H_
62