Ajit Khare | 470d092 | 2013-01-21 01:11:06 -0800 | [diff] [blame] | 1 | /* |
| 2 | *Copyright (c) 2013, The Linux Foundation. All rights reserved. |
| 3 | *Not a Contribution, Apache license notifications and license are retained |
| 4 | *for attribution purposes only. |
| 5 | *Copyright (C) 2010 The Android Open Source Project |
| 6 | * |
| 7 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 8 | * you may not use this file except in compliance with the License. |
| 9 | * You may obtain a copy of the License at |
| 10 | * |
| 11 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 12 | * |
| 13 | * Unless required by applicable law or agreed to in writing, software |
| 14 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 15 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 16 | * See the License for the specific language governing permissions and |
| 17 | * limitations under the License. |
| 18 | */ |
| 19 | |
| 20 | #ifndef DASH_PACKET_SOURCE_H_ |
| 21 | |
| 22 | #define DASH_PACKET_SOURCE_H_ |
| 23 | |
| 24 | #include <media/stagefright/foundation/ABase.h> |
| 25 | #include <media/stagefright/MediaSource.h> |
| 26 | #include <utils/threads.h> |
| 27 | #include <utils/List.h> |
| 28 | |
| 29 | #include "ATSParser.h" |
| 30 | |
| 31 | namespace android { |
| 32 | |
| 33 | struct ABuffer; |
| 34 | |
| 35 | struct DashPacketSource : public MediaSource { |
| 36 | DashPacketSource(const sp<MetaData> &meta); |
| 37 | |
| 38 | void setFormat(const sp<MetaData> &meta); |
| 39 | |
| 40 | virtual status_t start(MetaData *params = NULL); |
| 41 | virtual status_t stop(); |
| 42 | virtual sp<MetaData> getFormat(); |
| 43 | |
| 44 | virtual status_t read( |
| 45 | MediaBuffer **buffer, const ReadOptions *options = NULL); |
| 46 | |
| 47 | bool hasBufferAvailable(status_t *finalResult); |
| 48 | |
| 49 | // Returns the difference between the last and the first queued |
| 50 | // presentation timestamps since the last discontinuity (if any). |
| 51 | int64_t getBufferedDurationUs(status_t *finalResult); |
| 52 | |
| 53 | status_t nextBufferTime(int64_t *timeUs); |
| 54 | |
| 55 | void queueAccessUnit(const sp<ABuffer> &buffer); |
| 56 | |
| 57 | void queueDiscontinuity( |
| 58 | ATSParser::DiscontinuityType type, const sp<AMessage> &extra); |
| 59 | |
| 60 | void signalEOS(status_t result); |
| 61 | |
| 62 | status_t dequeueAccessUnit(sp<ABuffer> *buffer); |
| 63 | void updateFormat(const sp<MetaData> &meta); |
| 64 | int getQueueSize(); |
| 65 | |
| 66 | status_t getStreamInfo(unsigned& streamPID, unsigned& programPID, uint64_t& firstPTS); |
| 67 | |
| 68 | void setStreamInfo(unsigned streamPID, unsigned programPID, uint64_t firstPTS); |
| 69 | |
| 70 | status_t nextBufferIsSync(bool* isSyncFrame); |
| 71 | |
| 72 | protected: |
| 73 | virtual ~DashPacketSource(); |
| 74 | |
| 75 | private: |
| 76 | Mutex mLock; |
| 77 | Condition mCondition; |
| 78 | |
| 79 | bool mIsAudio; |
| 80 | sp<MetaData> mFormat; |
| 81 | List<sp<ABuffer> > mBuffers; |
| 82 | status_t mEOSResult; |
| 83 | unsigned mStreamPID; |
| 84 | unsigned mProgramPID; |
| 85 | uint64_t mFirstPTS; |
| 86 | |
| 87 | bool wasFormatChange(int32_t discontinuityType) const; |
| 88 | |
| 89 | DISALLOW_EVIL_CONSTRUCTORS(DashPacketSource); |
| 90 | }; |
| 91 | |
| 92 | |
| 93 | } // namespace android |
| 94 | |
| 95 | #endif // DASH_PACKET_SOURCE_H_ |