1 /* 2 * Copyright (C) 2010 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 ES_QUEUE_H_ 18 19 #define ES_QUEUE_H_ 20 21 #include <media/stagefright/foundation/ABase.h> 22 #include <utils/Errors.h> 23 #include <utils/List.h> 24 #include <utils/RefBase.h> 25 26 namespace android { 27 28 struct ABuffer; 29 struct MetaData; 30 31 struct ElementaryStreamQueue { 32 enum Mode { 33 H264, 34 AAC, 35 MPEG_AUDIO, 36 MPEG_VIDEO, 37 MPEG4_VIDEO, 38 }; 39 ElementaryStreamQueue(Mode mode); 40 41 status_t appendData(const void *data, size_t size, int64_t timeUs); 42 void clear(bool clearFormat); 43 44 sp<ABuffer> dequeueAccessUnit(); 45 46 sp<MetaData> getFormat(); 47 48 private: 49 struct RangeInfo { 50 int64_t mTimestampUs; 51 size_t mLength; 52 }; 53 54 Mode mMode; 55 56 sp<ABuffer> mBuffer; 57 List<RangeInfo> mRangeInfos; 58 59 sp<MetaData> mFormat; 60 61 sp<ABuffer> dequeueAccessUnitH264(); 62 sp<ABuffer> dequeueAccessUnitAAC(); 63 sp<ABuffer> dequeueAccessUnitMPEGAudio(); 64 sp<ABuffer> dequeueAccessUnitMPEGVideo(); 65 sp<ABuffer> dequeueAccessUnitMPEG4Video(); 66 67 // consume a logical (compressed) access unit of size "size", 68 // returns its timestamp in us (or -1 if no time information). 69 int64_t fetchTimestamp(size_t size); 70 71 DISALLOW_EVIL_CONSTRUCTORS(ElementaryStreamQueue); 72 }; 73 74 } // namespace android 75 76 #endif // ES_QUEUE_H_ 77
