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 <media/MediaSource.h>
22 #include <media/DataSource.h>
23 #include <utils/Errors.h>
24 #include <utils/KeyedVector.h>
25 #include <utils/RefBase.h>
26 #include <utils/String8.h>
27 
28 #include "jni.h"
29 
30 namespace android {
31 
32 struct IMediaHTTPService;
33 class MetaData;
34 struct NuMediaExtractor;
35 
36 struct JMediaExtractor : public RefBase {
37     JMediaExtractor(JNIEnv *env, jobject thiz);
38 
39     status_t setDataSource(
40             const sp<IMediaHTTPService> &httpService,
41             const char *path,
42             const KeyedVector<String8, String8> *headers);
43 
44     status_t setDataSource(int fd, off64_t offset, off64_t size);
45     status_t setDataSource(const sp<DataSource> &source);
46 
47     status_t setMediaCas(JNIEnv *env, jobject casBinderObj);
48 
49     size_t countTracks() const;
50     status_t getTrackFormat(size_t index, jobject *format) const;
51 
52     status_t getFileFormat(jobject *format) const;
53 
54     status_t selectTrack(size_t index);
55     status_t unselectTrack(size_t index);
56 
57     status_t seekTo(int64_t timeUs, MediaSource::ReadOptions::SeekMode mode);
58 
59     status_t advance();
60     status_t readSampleData(jobject byteBuf, size_t offset, size_t *sampleSize);
61     status_t getSampleTrackIndex(size_t *trackIndex);
62     status_t getSampleTime(int64_t *sampleTimeUs);
63     status_t getSampleSize(size_t *sampleSize);
64     status_t getSampleFlags(uint32_t *sampleFlags);
65     status_t getSampleMeta(sp<MetaData> *sampleMeta);
66     status_t getMetrics(Parcel *reply) const;
67 
68     bool getCachedDuration(int64_t *durationUs, bool *eos) const;
69 
70 protected:
71     virtual ~JMediaExtractor();
72 
73 private:
74     jclass mClass;
75     jweak mObject;
76     sp<NuMediaExtractor> mImpl;
77 
78     DISALLOW_EVIL_CONSTRUCTORS(JMediaExtractor);
79 };
80 
81 }  // namespace android
82 
83 #endif  // _ANDROID_MEDIA_MEDIAEXTRACTOR_H_
84