MediaExtractor.h revision 34769bc913e9f6bb138e666d94a9d685bf3da217 
1/*
2 * Copyright (C) 2009 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 MEDIA_EXTRACTOR_H_
18
19#define MEDIA_EXTRACTOR_H_
20
21#include <utils/RefBase.h>
22
23namespace android {
24
25class DataSource;
26class MediaSource;
27class MetaData;
28
29class MediaExtractor : public RefBase {
30public:
31    static sp<MediaExtractor> Create(
32            const sp<DataSource> &source, const char *mime = NULL);
33
34    static sp<MediaExtractor> CreateFromURI(
35            const char *uri, const char *mime = NULL);
36
37    virtual size_t countTracks() = 0;
38    virtual sp<MediaSource> getTrack(size_t index) = 0;
39
40    enum GetTrackMetaDataFlags {
41        kIncludeExtensiveMetaData = 1
42    };
43    virtual sp<MetaData> getTrackMetaData(
44            size_t index, uint32_t flags = 0) = 0;
45
46protected:
47    MediaExtractor() {}
48    virtual ~MediaExtractor() {}
49
50private:
51    MediaExtractor(const MediaExtractor &);
52    MediaExtractor &operator=(const MediaExtractor &);
53};
54
55}  // namespace android
56
57#endif  // MEDIA_EXTRACTOR_H_
58