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/IMediaExtractor.h>
22#include <media/MediaMetadataRetrieverInterface.h>
23
24#include <utils/KeyedVector.h>
25
26namespace android {
27
28class DataSource;
29class MediaExtractor;
30struct ImageDecoder;
31struct FrameRect;
32
33struct StagefrightMetadataRetriever : public MediaMetadataRetrieverBase {
34    StagefrightMetadataRetriever();
35    virtual ~StagefrightMetadataRetriever();
36
37    virtual status_t setDataSource(
38            const sp<IMediaHTTPService> &httpService,
39            const char *url,
40            const KeyedVector<String8, String8> *headers);
41
42    virtual status_t setDataSource(int fd, int64_t offset, int64_t length);
43    virtual status_t setDataSource(const sp<DataSource>& source, const char *mime);
44
45    virtual sp<IMemory> getFrameAtTime(
46            int64_t timeUs, int option, int colorFormat, bool metaOnly);
47    virtual sp<IMemory> getImageAtIndex(
48            int index, int colorFormat, bool metaOnly, bool thumbnail);
49    virtual sp<IMemory> getImageRectAtIndex(
50            int index, int colorFormat, int left, int top, int right, int bottom);
51    virtual status_t getFrameAtIndex(
52            std::vector<sp<IMemory> >* frames,
53            int frameIndex, int numFrames, int colorFormat, bool metaOnly);
54
55    virtual MediaAlbumArt *extractAlbumArt();
56    virtual const char *extractMetadata(int keyCode);
57
58private:
59    sp<DataSource> mSource;
60    sp<IMediaExtractor> mExtractor;
61
62    bool mParsedMetaData;
63    KeyedVector<int, String8> mMetaData;
64    MediaAlbumArt *mAlbumArt;
65
66    sp<ImageDecoder> mImageDecoder;
67    int mLastImageIndex;
68    void parseMetaData();
69    // Delete album art and clear metadata.
70    void clearMetadata();
71
72    status_t getFrameInternal(
73            int64_t timeUs, int numFrames, int option, int colorFormat, bool metaOnly,
74            sp<IMemory>* outFrame, std::vector<sp<IMemory> >* outFrames);
75    virtual sp<IMemory> getImageInternal(
76            int index, int colorFormat, bool metaOnly, bool thumbnail, FrameRect* rect);
77
78    StagefrightMetadataRetriever(const StagefrightMetadataRetriever &);
79
80    StagefrightMetadataRetriever &operator=(
81            const StagefrightMetadataRetriever &);
82};
83
84}  // namespace android
85
86#endif  // STAGEFRIGHT_METADATA_RETRIEVER_H_
87