android_media_MediaExtractor.h revision 07ea426e3ae8915ca6bf67135f523f42cd920af0 
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 NuMediaExtractor;
31
32struct JMediaExtractor : public RefBase {
33    JMediaExtractor(JNIEnv *env, jobject thiz);
34
35    status_t setDataSource(
36            const char *path,
37            const KeyedVector<String8, String8> *headers);
38
39    status_t setDataSource(int fd, off64_t offset, off64_t size);
40
41    size_t countTracks() const;
42    status_t getTrackFormat(size_t index, jobject *format) const;
43
44    status_t selectTrack(size_t index);
45
46    status_t seekTo(int64_t timeUs);
47
48    status_t advance();
49    status_t readSampleData(jobject byteBuf, size_t offset, size_t *sampleSize);
50    status_t getSampleTrackIndex(size_t *trackIndex);
51    status_t getSampleTime(int64_t *sampleTimeUs);
52    status_t getSampleFlags(uint32_t *sampleFlags);
53
54protected:
55    virtual ~JMediaExtractor();
56
57private:
58    jclass mClass;
59    jweak mObject;
60    sp<NuMediaExtractor> mImpl;
61
62    DISALLOW_EVIL_CONSTRUCTORS(JMediaExtractor);
63};
64
65}  // namespace android
66
67#endif  // _ANDROID_MEDIA_MEDIAEXTRACTOR_H_
68