android_media_MediaExtractor.h revision 91befdc0c4710234840cdfd853e7d30e8f9de62c 
1/*
2 * Copyright 2012, 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 _ANDROID_MEDIA_MEDIAEXTRACTOR_H_
18#define _ANDROID_MEDIA_MEDIAEXTRACTOR_H_
19
20#include <media/stagefright/foundation/ABase.h>
21#include <utils/Errors.h>
22#include <utils/KeyedVector.h>
23#include <utils/RefBase.h>
24#include <utils/String8.h>
25
26#include "jni.h"
27
28namespace android {
29
30struct MetaData;
31struct NuMediaExtractor;
32
33struct JMediaExtractor : public RefBase {
34    JMediaExtractor(JNIEnv *env, jobject thiz);
35
36    status_t setDataSource(
37            const char *path,
38            const KeyedVector<String8, String8> *headers);
39
40    status_t setDataSource(int fd, off64_t offset, off64_t size);
41
42    size_t countTracks() const;
43    status_t getTrackFormat(size_t index, jobject *format) const;
44
45    status_t selectTrack(size_t index);
46
47    status_t seekTo(int64_t timeUs);
48
49    status_t advance();
50    status_t readSampleData(jobject byteBuf, size_t offset, size_t *sampleSize);
51    status_t getSampleTrackIndex(size_t *trackIndex);
52    status_t getSampleTime(int64_t *sampleTimeUs);
53    status_t getSampleFlags(uint32_t *sampleFlags);
54    status_t getSampleMeta(sp<MetaData> *sampleMeta);
55
56protected:
57    virtual ~JMediaExtractor();
58
59private:
60    jclass mClass;
61    jweak mObject;
62    sp<NuMediaExtractor> mImpl;
63
64    DISALLOW_EVIL_CONSTRUCTORS(JMediaExtractor);
65};
66
67}  // namespace android
68
69#endif  // _ANDROID_MEDIA_MEDIAEXTRACTOR_H_
70