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 PCM_AUDIO, 39 }; 40 41 enum Flags { 42 // Data appended to the queue is always at access unit boundaries. 43 kFlag_AlignedData = 1, 44 }; 45 ElementaryStreamQueue(Mode mode, uint32_t flags = 0); 46 47 status_t appendData(const void *data, size_t size, int64_t timeUs); 48 void clear(bool clearFormat); 49 50 sp<ABuffer> dequeueAccessUnit(); 51 52 sp<MetaData> getFormat(); 53 54 private: 55 struct RangeInfo { 56 int64_t mTimestampUs; 57 size_t mLength; 58 }; 59 60 Mode mMode; 61 uint32_t mFlags; 62 63 sp<ABuffer> mBuffer; 64 List<RangeInfo> mRangeInfos; 65 66 sp<MetaData> mFormat; 67 68 sp<ABuffer> dequeueAccessUnitH264(); 69 sp<ABuffer> dequeueAccessUnitAAC(); 70 sp<ABuffer> dequeueAccessUnitMPEGAudio(); 71 sp<ABuffer> dequeueAccessUnitMPEGVideo(); 72 sp<ABuffer> dequeueAccessUnitMPEG4Video(); 73 sp<ABuffer> dequeueAccessUnitPCMAudio(); 74 75 // consume a logical (compressed) access unit of size "size", 76 // returns its timestamp in us (or -1 if no time information). 77 int64_t fetchTimestamp(size_t size); 78 79 DISALLOW_EVIL_CONSTRUCTORS(ElementaryStreamQueue); 80 }; 81 82 } // namespace android 83 84 #endif // ES_QUEUE_H_ 85
