PlaylistFetcher.h revision b44ce2f84691559672cfaf6bb8fd3a9ac43904f2
114f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber/* 214f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber * Copyright (C) 2012 The Android Open Source Project 314f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber * 414f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 514f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber * you may not use this file except in compliance with the License. 614f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber * You may obtain a copy of the License at 714f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber * 814f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 914f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber * 1014f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber * Unless required by applicable law or agreed to in writing, software 1114f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 1214f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1314f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber * See the License for the specific language governing permissions and 1414f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber * limitations under the License. 1514f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber */ 1614f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 1714f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber#ifndef PLAYLIST_FETCHER_H_ 1814f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 1914f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber#define PLAYLIST_FETCHER_H_ 2014f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 2114f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber#include <media/stagefright/foundation/AHandler.h> 2214f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 2314f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber#include "mpeg2ts/ATSParser.h" 2414f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber#include "LiveSession.h" 2514f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 2614f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Hubernamespace android { 2714f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 2814f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huberstruct ABuffer; 2914f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huberstruct AnotherPacketSource; 3014f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huberstruct DataSource; 3114f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huberstruct HTTPBase; 3214f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huberstruct LiveDataSource; 3314f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huberstruct M3UParser; 3414f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huberstruct String8; 3514f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 3614f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huberstruct PlaylistFetcher : public AHandler { 3714f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber enum { 3814f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber kWhatStarted, 3914f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber kWhatPaused, 4014f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber kWhatStopped, 4114f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber kWhatError, 4214f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber kWhatDurationUpdate, 4314f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber kWhatTemporarilyDoneFetching, 4414f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber kWhatPrepared, 4514f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber kWhatPreparationFailed, 46777ee5ed736c8f6c3f7d196ea022f7432bfd23e1Robert Shih kWhatStartedAt, 4714f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber }; 4814f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 4914f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber PlaylistFetcher( 5014f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber const sp<AMessage> ¬ify, 5114f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber const sp<LiveSession> &session, 52b44ce2f84691559672cfaf6bb8fd3a9ac43904f2Robert Shih const char *uri, 53b44ce2f84691559672cfaf6bb8fd3a9ac43904f2Robert Shih int32_t subtitleGeneration); 5414f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 5514f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber sp<DataSource> getDataSource(); 5614f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 5714f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber void startAsync( 5814f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber const sp<AnotherPacketSource> &audioSource, 5914f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber const sp<AnotherPacketSource> &videoSource, 6014f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber const sp<AnotherPacketSource> &subtitleSource, 61309aa8bf5e4cd66fe988adf2654cac3fadc2a1c3Robert Shih int64_t startTimeUs = -1ll, // starting timestamps 62309aa8bf5e4cd66fe988adf2654cac3fadc2a1c3Robert Shih int64_t segmentStartTimeUs = -1ll, // starting position within playlist 63309aa8bf5e4cd66fe988adf2654cac3fadc2a1c3Robert Shih // startTimeUs!=segmentStartTimeUs only when playlist is live 64309aa8bf5e4cd66fe988adf2654cac3fadc2a1c3Robert Shih int32_t startDiscontinuitySeq = 0, 65309aa8bf5e4cd66fe988adf2654cac3fadc2a1c3Robert Shih bool adaptive = false); 6614f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 6714f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber void pauseAsync(); 6814f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 69309aa8bf5e4cd66fe988adf2654cac3fadc2a1c3Robert Shih void stopAsync(bool clear = true); 7014f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 71777ee5ed736c8f6c3f7d196ea022f7432bfd23e1Robert Shih void resumeUntilAsync(const sp<AMessage> ¶ms); 72777ee5ed736c8f6c3f7d196ea022f7432bfd23e1Robert Shih 7373d2847af14cdd5fdf8bd1ac80fb7ddf9ae7d9a7Robert Shih uint32_t getStreamTypeMask() const { 7473d2847af14cdd5fdf8bd1ac80fb7ddf9ae7d9a7Robert Shih return mStreamTypeMask; 7573d2847af14cdd5fdf8bd1ac80fb7ddf9ae7d9a7Robert Shih } 7673d2847af14cdd5fdf8bd1ac80fb7ddf9ae7d9a7Robert Shih 7714f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huberprotected: 7814f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber virtual ~PlaylistFetcher(); 7914f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber virtual void onMessageReceived(const sp<AMessage> &msg); 8014f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 8114f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huberprivate: 8214f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber enum { 8314f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber kMaxNumRetries = 5, 8414f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber }; 8514f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 8614f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber enum { 8714f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber kWhatStart = 'strt', 8814f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber kWhatPause = 'paus', 8914f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber kWhatStop = 'stop', 9014f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber kWhatMonitorQueue = 'moni', 91777ee5ed736c8f6c3f7d196ea022f7432bfd23e1Robert Shih kWhatResumeUntil = 'rsme', 92777ee5ed736c8f6c3f7d196ea022f7432bfd23e1Robert Shih kWhatDownloadNext = 'dlnx', 9314f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber }; 9414f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 9514f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber static const int64_t kMinBufferedDurationUs; 966708a45ba1b5eacf583d5e80b2075b68940fe0abLajos Molnar static const int64_t kMaxMonitorDelayUs; 9743ca783effd99bba0e6e2dd6fe177a8888578ef8Robert Shih static const int32_t kDownloadBlockSize; 98777ee5ed736c8f6c3f7d196ea022f7432bfd23e1Robert Shih static const int32_t kNumSkipFrames; 9914f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 10043ca783effd99bba0e6e2dd6fe177a8888578ef8Robert Shih static bool bufferStartsWithTsSyncByte(const sp<ABuffer>& buffer); 1017d8e3ccfbf326b5e190b416590e956c2fc3021f7Lajos Molnar static bool bufferStartsWithWebVTTMagicSequence(const sp<ABuffer>& buffer); 10243ca783effd99bba0e6e2dd6fe177a8888578ef8Robert Shih 103777ee5ed736c8f6c3f7d196ea022f7432bfd23e1Robert Shih // notifications to mSession 10414f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber sp<AMessage> mNotify; 105777ee5ed736c8f6c3f7d196ea022f7432bfd23e1Robert Shih sp<AMessage> mStartTimeUsNotify; 106777ee5ed736c8f6c3f7d196ea022f7432bfd23e1Robert Shih 10714f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber sp<LiveSession> mSession; 10814f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber AString mURI; 10914f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 11014f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber uint32_t mStreamTypeMask; 11114f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber int64_t mStartTimeUs; 112f78f62bd6b0a99747db53828d281a50b9270a646Robert Shih 113f78f62bd6b0a99747db53828d281a50b9270a646Robert Shih // Start time relative to the beginning of the first segment in the initial 114f78f62bd6b0a99747db53828d281a50b9270a646Robert Shih // playlist. It's value is initialized to a non-negative value only when we are 115f78f62bd6b0a99747db53828d281a50b9270a646Robert Shih // adapting or switching tracks. 116309aa8bf5e4cd66fe988adf2654cac3fadc2a1c3Robert Shih int64_t mSegmentStartTimeUs; 117f78f62bd6b0a99747db53828d281a50b9270a646Robert Shih 118309aa8bf5e4cd66fe988adf2654cac3fadc2a1c3Robert Shih ssize_t mDiscontinuitySeq; 119309aa8bf5e4cd66fe988adf2654cac3fadc2a1c3Robert Shih bool mStartTimeUsRelative; 120777ee5ed736c8f6c3f7d196ea022f7432bfd23e1Robert Shih sp<AMessage> mStopParams; // message containing the latest timestamps we should fetch. 12114f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 12214f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber KeyedVector<LiveSession::StreamType, sp<AnotherPacketSource> > 12314f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber mPacketSources; 12414f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 12514f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber KeyedVector<AString, sp<ABuffer> > mAESKeyForURI; 12614f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 12714f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber int64_t mLastPlaylistFetchTimeUs; 12814f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber sp<M3UParser> mPlaylist; 12914f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber int32_t mSeqNumber; 13014f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber int32_t mNumRetries; 13114f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber bool mStartup; 132309aa8bf5e4cd66fe988adf2654cac3fadc2a1c3Robert Shih bool mAdaptive; 1336708a45ba1b5eacf583d5e80b2075b68940fe0abLajos Molnar bool mPrepared; 13414f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber int64_t mNextPTSTimeUs; 13514f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 13614f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber int32_t mMonitorQueueGeneration; 137b44ce2f84691559672cfaf6bb8fd3a9ac43904f2Robert Shih const int32_t mSubtitleGeneration; 13814f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 13914f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber enum RefreshState { 14014f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber INITIAL_MINIMUM_RELOAD_DELAY, 14114f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber FIRST_UNCHANGED_RELOAD_ATTEMPT, 14214f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber SECOND_UNCHANGED_RELOAD_ATTEMPT, 14314f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber THIRD_UNCHANGED_RELOAD_ATTEMPT 14414f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber }; 14514f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber RefreshState mRefreshState; 14614f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 14714f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber uint8_t mPlaylistHash[16]; 14814f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 14914f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber sp<ATSParser> mTSParser; 15014f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 15114f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber bool mFirstPTSValid; 15214f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber uint64_t mFirstPTS; 153309aa8bf5e4cd66fe988adf2654cac3fadc2a1c3Robert Shih int64_t mFirstTimeUs; 15414f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber int64_t mAbsoluteTimeAnchorUs; 155309aa8bf5e4cd66fe988adf2654cac3fadc2a1c3Robert Shih sp<AnotherPacketSource> mVideoBuffer; 15614f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 1572cd94583868b775a548233a4f7cd1d988fc6344fRobert Shih // Stores the initialization vector to decrypt the next block of cipher text, which can 1582cd94583868b775a548233a4f7cd1d988fc6344fRobert Shih // either be derived from the sequence number, read from the manifest, or copied from 1592cd94583868b775a548233a4f7cd1d988fc6344fRobert Shih // the last block of cipher text (cipher-block chaining). 1602cd94583868b775a548233a4f7cd1d988fc6344fRobert Shih unsigned char mAESInitVec[16]; 1612cd94583868b775a548233a4f7cd1d988fc6344fRobert Shih 1622cd94583868b775a548233a4f7cd1d988fc6344fRobert Shih // Set first to true if decrypting the first segment of a playlist segment. When 1632cd94583868b775a548233a4f7cd1d988fc6344fRobert Shih // first is true, reset the initialization vector based on the available 1642cd94583868b775a548233a4f7cd1d988fc6344fRobert Shih // information in the manifest; otherwise, use the initialization vector as 1652cd94583868b775a548233a4f7cd1d988fc6344fRobert Shih // updated by the last call to AES_cbc_encrypt. 1662cd94583868b775a548233a4f7cd1d988fc6344fRobert Shih // 1672cd94583868b775a548233a4f7cd1d988fc6344fRobert Shih // For the input to decrypt correctly, decryptBuffer must be called on 1682cd94583868b775a548233a4f7cd1d988fc6344fRobert Shih // consecutive byte ranges on block boundaries, e.g. 0..15, 16..47, 48..63, 1692cd94583868b775a548233a4f7cd1d988fc6344fRobert Shih // and so on. 17014f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber status_t decryptBuffer( 1712cd94583868b775a548233a4f7cd1d988fc6344fRobert Shih size_t playlistIndex, const sp<ABuffer> &buffer, 1722cd94583868b775a548233a4f7cd1d988fc6344fRobert Shih bool first = true); 1732cd94583868b775a548233a4f7cd1d988fc6344fRobert Shih status_t checkDecryptPadding(const sp<ABuffer> &buffer); 17414f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 1756708a45ba1b5eacf583d5e80b2075b68940fe0abLajos Molnar void postMonitorQueue(int64_t delayUs = 0, int64_t minDelayUs = 0); 17614f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber void cancelMonitorQueue(); 17714f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 1786708a45ba1b5eacf583d5e80b2075b68940fe0abLajos Molnar int64_t delayUsToRefreshPlaylist() const; 1796708a45ba1b5eacf583d5e80b2075b68940fe0abLajos Molnar status_t refreshPlaylist(); 18014f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 18114f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber // Returns the media time in us of the segment specified by seqNumber. 18214f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber // This is computed by summing the durations of all segments before it. 18314f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber int64_t getSegmentStartTimeUs(int32_t seqNumber) const; 18414f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 18514f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber status_t onStart(const sp<AMessage> &msg); 18614f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber void onPause(); 187ceeabe15f4e7bc73efdfcafed917202de9d515cbRobert Shih void onStop(const sp<AMessage> &msg); 18814f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber void onMonitorQueue(); 18914f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber void onDownloadNext(); 19014f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 191777ee5ed736c8f6c3f7d196ea022f7432bfd23e1Robert Shih // Resume a fetcher to continue until the stopping point stored in msg. 192777ee5ed736c8f6c3f7d196ea022f7432bfd23e1Robert Shih status_t onResumeUntil(const sp<AMessage> &msg); 193777ee5ed736c8f6c3f7d196ea022f7432bfd23e1Robert Shih 194309aa8bf5e4cd66fe988adf2654cac3fadc2a1c3Robert Shih const sp<ABuffer> &setAccessUnitProperties( 195309aa8bf5e4cd66fe988adf2654cac3fadc2a1c3Robert Shih const sp<ABuffer> &accessUnit, 196309aa8bf5e4cd66fe988adf2654cac3fadc2a1c3Robert Shih const sp<AnotherPacketSource> &source, 197309aa8bf5e4cd66fe988adf2654cac3fadc2a1c3Robert Shih bool discard = false); 19843ca783effd99bba0e6e2dd6fe177a8888578ef8Robert Shih status_t extractAndQueueAccessUnitsFromTs(const sp<ABuffer> &buffer); 19943ca783effd99bba0e6e2dd6fe177a8888578ef8Robert Shih 200dcb89b3b505522efde173c105a851c412f947178Chong Zhang status_t extractAndQueueAccessUnits( 201dcb89b3b505522efde173c105a851c412f947178Chong Zhang const sp<ABuffer> &buffer, const sp<AMessage> &itemMeta); 20214f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 20314f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber void notifyError(status_t err); 20414f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 20514f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber void queueDiscontinuity( 20614f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber ATSParser::DiscontinuityType type, const sp<AMessage> &extra); 20714f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 208309aa8bf5e4cd66fe988adf2654cac3fadc2a1c3Robert Shih int32_t getSeqNumberWithAnchorTime(int64_t anchorTimeUs) const; 209309aa8bf5e4cd66fe988adf2654cac3fadc2a1c3Robert Shih int32_t getSeqNumberForDiscontinuity(size_t discontinuitySeq) const; 21014f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber int32_t getSeqNumberForTime(int64_t timeUs) const; 21114f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 21214f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber void updateDuration(); 21314f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 214777ee5ed736c8f6c3f7d196ea022f7432bfd23e1Robert Shih // Before resuming a fetcher in onResume, check the remaining duration is longer than that 215777ee5ed736c8f6c3f7d196ea022f7432bfd23e1Robert Shih // returned by resumeThreshold. 216777ee5ed736c8f6c3f7d196ea022f7432bfd23e1Robert Shih int64_t resumeThreshold(const sp<AMessage> &msg); 217777ee5ed736c8f6c3f7d196ea022f7432bfd23e1Robert Shih 21814f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber DISALLOW_EVIL_CONSTRUCTORS(PlaylistFetcher); 21914f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber}; 22014f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 22114f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber} // namespace android 22214f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 22314f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber#endif // PLAYLIST_FETCHER_H_ 22414f7672b5d450ed26a06fd3bb3ce045ea78b11b2Andreas Huber 225