1/*
2**
3** Copyright (C) 2008 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_MEDIAMETADATARETRIEVERINTERFACE_H
19#define ANDROID_MEDIAMETADATARETRIEVERINTERFACE_H
20
21#include <utils/RefBase.h>
22#include <media/mediametadataretriever.h>
23#include <media/mediascanner.h>
24#include <private/media/VideoFrame.h>
25
26namespace android {
27
28struct IMediaHTTPService;
29
30// Abstract base class
31class MediaMetadataRetrieverBase : public RefBase
32{
33public:
34                        MediaMetadataRetrieverBase() {}
35    virtual             ~MediaMetadataRetrieverBase() {}
36
37    virtual status_t    setDataSource(
38            const sp<IMediaHTTPService> &httpService,
39            const char *url,
40            const KeyedVector<String8, String8> *headers = NULL) = 0;
41
42    virtual status_t    setDataSource(int fd, int64_t offset, int64_t length) = 0;
43    virtual VideoFrame* getFrameAtTime(int64_t timeUs, int option) = 0;
44    virtual MediaAlbumArt* extractAlbumArt() = 0;
45    virtual const char* extractMetadata(int keyCode) = 0;
46};
47
48// MediaMetadataRetrieverInterface
49class MediaMetadataRetrieverInterface : public MediaMetadataRetrieverBase
50{
51public:
52    MediaMetadataRetrieverInterface() {}
53
54    virtual             ~MediaMetadataRetrieverInterface() {}
55    virtual VideoFrame* getFrameAtTime(int64_t timeUs, int option) { return NULL; }
56    virtual MediaAlbumArt* extractAlbumArt() { return NULL; }
57    virtual const char* extractMetadata(int keyCode) { return NULL; }
58};
59
60}; // namespace android
61
62#endif // ANDROID_MEDIAMETADATARETRIEVERINTERFACE_H
63