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