| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef LIVE_SESSION_H_ |
| |
| #define LIVE_SESSION_H_ |
| |
| #include <media/stagefright/foundation/AHandler.h> |
| |
| #include <utils/String8.h> |
| |
| namespace android { |
| |
| struct ABuffer; |
| struct AnotherPacketSource; |
| struct DataSource; |
| struct HTTPBase; |
| struct LiveDataSource; |
| struct M3UParser; |
| struct PlaylistFetcher; |
| struct Parcel; |
| |
| struct LiveSession : public AHandler { |
| enum Flags { |
| // Don't log any URLs. |
| kFlagIncognito = 1, |
| }; |
| LiveSession( |
| const sp<AMessage> ¬ify, |
| uint32_t flags = 0, bool uidValid = false, uid_t uid = 0); |
| |
| enum StreamType { |
| STREAMTYPE_AUDIO = 1, |
| STREAMTYPE_VIDEO = 2, |
| STREAMTYPE_SUBTITLES = 4, |
| }; |
| status_t dequeueAccessUnit(StreamType stream, sp<ABuffer> *accessUnit); |
| |
| status_t getStreamFormat(StreamType stream, sp<AMessage> *format); |
| |
| void connectAsync( |
| const char *url, |
| const KeyedVector<String8, String8> *headers = NULL); |
| |
| status_t disconnect(); |
| |
| // Blocks until seek is complete. |
| status_t seekTo(int64_t timeUs); |
| |
| status_t getDuration(int64_t *durationUs) const; |
| status_t getTrackInfo(Parcel *reply) const; |
| status_t selectTrack(size_t index, bool select); |
| |
| bool isSeekable() const; |
| bool hasDynamicDuration() const; |
| |
| enum { |
| kWhatStreamsChanged, |
| kWhatError, |
| kWhatPrepared, |
| kWhatPreparationFailed, |
| }; |
| |
| protected: |
| virtual ~LiveSession(); |
| |
| virtual void onMessageReceived(const sp<AMessage> &msg); |
| |
| private: |
| friend struct PlaylistFetcher; |
| |
| enum { |
| kWhatConnect = 'conn', |
| kWhatDisconnect = 'disc', |
| kWhatSeek = 'seek', |
| kWhatFetcherNotify = 'notf', |
| kWhatCheckBandwidth = 'bndw', |
| kWhatChangeConfiguration = 'chC0', |
| kWhatChangeConfiguration2 = 'chC2', |
| kWhatChangeConfiguration3 = 'chC3', |
| kWhatFinishDisconnect2 = 'fin2', |
| }; |
| |
| struct BandwidthItem { |
| size_t mPlaylistIndex; |
| unsigned long mBandwidth; |
| }; |
| |
| struct FetcherInfo { |
| sp<PlaylistFetcher> mFetcher; |
| int64_t mDurationUs; |
| bool mIsPrepared; |
| }; |
| |
| sp<AMessage> mNotify; |
| uint32_t mFlags; |
| bool mUIDValid; |
| uid_t mUID; |
| |
| bool mInPreparationPhase; |
| |
| sp<HTTPBase> mHTTPDataSource; |
| KeyedVector<String8, String8> mExtraHeaders; |
| |
| AString mMasterURL; |
| |
| Vector<BandwidthItem> mBandwidthItems; |
| ssize_t mPrevBandwidthIndex; |
| |
| sp<M3UParser> mPlaylist; |
| |
| KeyedVector<AString, FetcherInfo> mFetcherInfos; |
| AString mAudioURI, mVideoURI, mSubtitleURI; |
| uint32_t mStreamMask; |
| |
| KeyedVector<StreamType, sp<AnotherPacketSource> > mPacketSources; |
| |
| int32_t mCheckBandwidthGeneration; |
| |
| size_t mContinuationCounter; |
| sp<AMessage> mContinuation; |
| |
| int64_t mLastDequeuedTimeUs; |
| int64_t mRealTimeBaseUs; |
| |
| bool mReconfigurationInProgress; |
| uint32_t mDisconnectReplyID; |
| |
| sp<PlaylistFetcher> addFetcher(const char *uri); |
| |
| void onConnect(const sp<AMessage> &msg); |
| status_t onSeek(const sp<AMessage> &msg); |
| void onFinishDisconnect2(); |
| |
| status_t fetchFile( |
| const char *url, sp<ABuffer> *out, |
| int64_t range_offset = 0, int64_t range_length = -1); |
| |
| sp<M3UParser> fetchPlaylist( |
| const char *url, uint8_t *curPlaylistHash, bool *unchanged); |
| |
| size_t getBandwidthIndex(); |
| |
| static int SortByBandwidth(const BandwidthItem *, const BandwidthItem *); |
| |
| void changeConfiguration( |
| int64_t timeUs, size_t bandwidthIndex, bool pickTrack = false); |
| void onChangeConfiguration(const sp<AMessage> &msg); |
| void onChangeConfiguration2(const sp<AMessage> &msg); |
| void onChangeConfiguration3(const sp<AMessage> &msg); |
| |
| void scheduleCheckBandwidthEvent(); |
| void cancelCheckBandwidthEvent(); |
| |
| void onCheckBandwidth(); |
| |
| void finishDisconnect(); |
| |
| void postPrepared(status_t err); |
| |
| DISALLOW_EVIL_CONSTRUCTORS(LiveSession); |
| }; |
| |
| } // namespace android |
| |
| #endif // LIVE_SESSION_H_ |