LiveSession.cpp revision 8cb0c4168bf4b678e4a6edfcf409247016be20d5
1a44153c1a57202fb538659eb50706e60454d6273Andreas Huber/* 2a44153c1a57202fb538659eb50706e60454d6273Andreas Huber * Copyright (C) 2010 The Android Open Source Project 3a44153c1a57202fb538659eb50706e60454d6273Andreas Huber * 4a44153c1a57202fb538659eb50706e60454d6273Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 5a44153c1a57202fb538659eb50706e60454d6273Andreas Huber * you may not use this file except in compliance with the License. 6a44153c1a57202fb538659eb50706e60454d6273Andreas Huber * You may obtain a copy of the License at 7a44153c1a57202fb538659eb50706e60454d6273Andreas Huber * 8a44153c1a57202fb538659eb50706e60454d6273Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 9a44153c1a57202fb538659eb50706e60454d6273Andreas Huber * 10a44153c1a57202fb538659eb50706e60454d6273Andreas Huber * Unless required by applicable law or agreed to in writing, software 11a44153c1a57202fb538659eb50706e60454d6273Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 12a44153c1a57202fb538659eb50706e60454d6273Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13a44153c1a57202fb538659eb50706e60454d6273Andreas Huber * See the License for the specific language governing permissions and 14a44153c1a57202fb538659eb50706e60454d6273Andreas Huber * limitations under the License. 15a44153c1a57202fb538659eb50706e60454d6273Andreas Huber */ 16a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 17a44153c1a57202fb538659eb50706e60454d6273Andreas Huber//#define LOG_NDEBUG 0 18a44153c1a57202fb538659eb50706e60454d6273Andreas Huber#define LOG_TAG "LiveSession" 19a44153c1a57202fb538659eb50706e60454d6273Andreas Huber#include <utils/Log.h> 20a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 21a44153c1a57202fb538659eb50706e60454d6273Andreas Huber#include "include/LiveSession.h" 22a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 23a44153c1a57202fb538659eb50706e60454d6273Andreas Huber#include "LiveDataSource.h" 24a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 25a44153c1a57202fb538659eb50706e60454d6273Andreas Huber#include "include/M3UParser.h" 26a44153c1a57202fb538659eb50706e60454d6273Andreas Huber#include "include/NuHTTPDataSource.h" 27a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 28a44153c1a57202fb538659eb50706e60454d6273Andreas Huber#include <cutils/properties.h> 29a44153c1a57202fb538659eb50706e60454d6273Andreas Huber#include <media/stagefright/foundation/hexdump.h> 30a44153c1a57202fb538659eb50706e60454d6273Andreas Huber#include <media/stagefright/foundation/ABuffer.h> 31a44153c1a57202fb538659eb50706e60454d6273Andreas Huber#include <media/stagefright/foundation/ADebug.h> 32a44153c1a57202fb538659eb50706e60454d6273Andreas Huber#include <media/stagefright/foundation/AMessage.h> 33a44153c1a57202fb538659eb50706e60454d6273Andreas Huber#include <media/stagefright/DataSource.h> 34a44153c1a57202fb538659eb50706e60454d6273Andreas Huber#include <media/stagefright/FileSource.h> 35a44153c1a57202fb538659eb50706e60454d6273Andreas Huber#include <media/stagefright/MediaErrors.h> 36a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 37a44153c1a57202fb538659eb50706e60454d6273Andreas Huber#include <ctype.h> 38a44153c1a57202fb538659eb50706e60454d6273Andreas Huber#include <openssl/aes.h> 39a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 40a44153c1a57202fb538659eb50706e60454d6273Andreas Hubernamespace android { 41a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 42a44153c1a57202fb538659eb50706e60454d6273Andreas Huberconst int64_t LiveSession::kMaxPlaylistAgeUs = 15000000ll; 43a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 44a44153c1a57202fb538659eb50706e60454d6273Andreas HuberLiveSession::LiveSession() 45a44153c1a57202fb538659eb50706e60454d6273Andreas Huber : mDataSource(new LiveDataSource), 46a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mHTTPDataSource(new NuHTTPDataSource), 47a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mPrevBandwidthIndex(-1), 48a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mLastPlaylistFetchTimeUs(-1), 49a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mSeqNumber(-1), 50a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mSeekTimeUs(-1), 51a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mNumRetries(0), 52a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mDurationUs(-1), 53a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mSeekDone(false), 54ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber mDisconnectPending(false), 55a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mMonitorQueueGeneration(0) { 56a44153c1a57202fb538659eb50706e60454d6273Andreas Huber} 57a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 58a44153c1a57202fb538659eb50706e60454d6273Andreas HuberLiveSession::~LiveSession() { 59a44153c1a57202fb538659eb50706e60454d6273Andreas Huber} 60a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 61a44153c1a57202fb538659eb50706e60454d6273Andreas Hubersp<DataSource> LiveSession::getDataSource() { 62a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return mDataSource; 63a44153c1a57202fb538659eb50706e60454d6273Andreas Huber} 64a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 65a44153c1a57202fb538659eb50706e60454d6273Andreas Hubervoid LiveSession::connect(const char *url) { 66a44153c1a57202fb538659eb50706e60454d6273Andreas Huber sp<AMessage> msg = new AMessage(kWhatConnect, id()); 67a44153c1a57202fb538659eb50706e60454d6273Andreas Huber msg->setString("url", url); 68a44153c1a57202fb538659eb50706e60454d6273Andreas Huber msg->post(); 69a44153c1a57202fb538659eb50706e60454d6273Andreas Huber} 70a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 71a44153c1a57202fb538659eb50706e60454d6273Andreas Hubervoid LiveSession::disconnect() { 72ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber Mutex::Autolock autoLock(mLock); 73ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber mDisconnectPending = true; 74ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber 75ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber mHTTPDataSource->disconnect(); 76ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber 77a44153c1a57202fb538659eb50706e60454d6273Andreas Huber (new AMessage(kWhatDisconnect, id()))->post(); 78a44153c1a57202fb538659eb50706e60454d6273Andreas Huber} 79a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 80a44153c1a57202fb538659eb50706e60454d6273Andreas Hubervoid LiveSession::seekTo(int64_t timeUs) { 81a44153c1a57202fb538659eb50706e60454d6273Andreas Huber Mutex::Autolock autoLock(mLock); 82a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mSeekDone = false; 83a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 84a44153c1a57202fb538659eb50706e60454d6273Andreas Huber sp<AMessage> msg = new AMessage(kWhatSeek, id()); 85a44153c1a57202fb538659eb50706e60454d6273Andreas Huber msg->setInt64("timeUs", timeUs); 86a44153c1a57202fb538659eb50706e60454d6273Andreas Huber msg->post(); 87a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 88a44153c1a57202fb538659eb50706e60454d6273Andreas Huber while (!mSeekDone) { 89a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mCondition.wait(mLock); 90a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 91a44153c1a57202fb538659eb50706e60454d6273Andreas Huber} 92a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 93a44153c1a57202fb538659eb50706e60454d6273Andreas Hubervoid LiveSession::onMessageReceived(const sp<AMessage> &msg) { 94a44153c1a57202fb538659eb50706e60454d6273Andreas Huber switch (msg->what()) { 95a44153c1a57202fb538659eb50706e60454d6273Andreas Huber case kWhatConnect: 96a44153c1a57202fb538659eb50706e60454d6273Andreas Huber onConnect(msg); 97a44153c1a57202fb538659eb50706e60454d6273Andreas Huber break; 98a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 99a44153c1a57202fb538659eb50706e60454d6273Andreas Huber case kWhatDisconnect: 100a44153c1a57202fb538659eb50706e60454d6273Andreas Huber onDisconnect(); 101a44153c1a57202fb538659eb50706e60454d6273Andreas Huber break; 102a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 103a44153c1a57202fb538659eb50706e60454d6273Andreas Huber case kWhatMonitorQueue: 104a44153c1a57202fb538659eb50706e60454d6273Andreas Huber { 105a44153c1a57202fb538659eb50706e60454d6273Andreas Huber int32_t generation; 106a44153c1a57202fb538659eb50706e60454d6273Andreas Huber CHECK(msg->findInt32("generation", &generation)); 107a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 108a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (generation != mMonitorQueueGeneration) { 109a44153c1a57202fb538659eb50706e60454d6273Andreas Huber // Stale event 110a44153c1a57202fb538659eb50706e60454d6273Andreas Huber break; 111a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 112a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 113a44153c1a57202fb538659eb50706e60454d6273Andreas Huber onMonitorQueue(); 114a44153c1a57202fb538659eb50706e60454d6273Andreas Huber break; 115a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 116a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 117a44153c1a57202fb538659eb50706e60454d6273Andreas Huber case kWhatSeek: 118a44153c1a57202fb538659eb50706e60454d6273Andreas Huber onSeek(msg); 119a44153c1a57202fb538659eb50706e60454d6273Andreas Huber break; 120a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 121a44153c1a57202fb538659eb50706e60454d6273Andreas Huber default: 122a44153c1a57202fb538659eb50706e60454d6273Andreas Huber TRESPASS(); 123a44153c1a57202fb538659eb50706e60454d6273Andreas Huber break; 124a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 125a44153c1a57202fb538659eb50706e60454d6273Andreas Huber} 126a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 127a44153c1a57202fb538659eb50706e60454d6273Andreas Huber// static 128a44153c1a57202fb538659eb50706e60454d6273Andreas Huberint LiveSession::SortByBandwidth(const BandwidthItem *a, const BandwidthItem *b) { 129a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (a->mBandwidth < b->mBandwidth) { 130a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return -1; 131a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } else if (a->mBandwidth == b->mBandwidth) { 132a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return 0; 133a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 134a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 135a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return 1; 136a44153c1a57202fb538659eb50706e60454d6273Andreas Huber} 137a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 138a44153c1a57202fb538659eb50706e60454d6273Andreas Hubervoid LiveSession::onConnect(const sp<AMessage> &msg) { 139a44153c1a57202fb538659eb50706e60454d6273Andreas Huber AString url; 140a44153c1a57202fb538659eb50706e60454d6273Andreas Huber CHECK(msg->findString("url", &url)); 141a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 142a44153c1a57202fb538659eb50706e60454d6273Andreas Huber LOGI("onConnect '%s'", url.c_str()); 143a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 144a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mMasterURL = url; 145a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 146a44153c1a57202fb538659eb50706e60454d6273Andreas Huber sp<M3UParser> playlist = fetchPlaylist(url.c_str()); 147ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber 148ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber if (playlist == NULL) { 149ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber LOGE("unable to fetch master playlist '%s'.", url.c_str()); 150ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber 151ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber mDataSource->queueEOS(ERROR_IO); 152ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber return; 153ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber } 154a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 155a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (playlist->isVariantPlaylist()) { 156a44153c1a57202fb538659eb50706e60454d6273Andreas Huber for (size_t i = 0; i < playlist->size(); ++i) { 157a44153c1a57202fb538659eb50706e60454d6273Andreas Huber BandwidthItem item; 158a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 159a44153c1a57202fb538659eb50706e60454d6273Andreas Huber sp<AMessage> meta; 160a44153c1a57202fb538659eb50706e60454d6273Andreas Huber playlist->itemAt(i, &item.mURI, &meta); 161a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 162a44153c1a57202fb538659eb50706e60454d6273Andreas Huber unsigned long bandwidth; 163a44153c1a57202fb538659eb50706e60454d6273Andreas Huber CHECK(meta->findInt32("bandwidth", (int32_t *)&item.mBandwidth)); 164a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 165a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mBandwidthItems.push(item); 166a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 167a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 168a44153c1a57202fb538659eb50706e60454d6273Andreas Huber CHECK_GT(mBandwidthItems.size(), 0u); 169a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 170a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mBandwidthItems.sort(SortByBandwidth); 171a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 172a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 173a44153c1a57202fb538659eb50706e60454d6273Andreas Huber postMonitorQueue(); 174a44153c1a57202fb538659eb50706e60454d6273Andreas Huber} 175a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 176a44153c1a57202fb538659eb50706e60454d6273Andreas Hubervoid LiveSession::onDisconnect() { 177a44153c1a57202fb538659eb50706e60454d6273Andreas Huber LOGI("onDisconnect"); 178a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 179a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mDataSource->queueEOS(ERROR_END_OF_STREAM); 180ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber 181ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber Mutex::Autolock autoLock(mLock); 182ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber mDisconnectPending = false; 183a44153c1a57202fb538659eb50706e60454d6273Andreas Huber} 184a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 185a44153c1a57202fb538659eb50706e60454d6273Andreas Huberstatus_t LiveSession::fetchFile(const char *url, sp<ABuffer> *out) { 186a44153c1a57202fb538659eb50706e60454d6273Andreas Huber *out = NULL; 187a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 188a44153c1a57202fb538659eb50706e60454d6273Andreas Huber sp<DataSource> source; 189a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 190a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (!strncasecmp(url, "file://", 7)) { 191a44153c1a57202fb538659eb50706e60454d6273Andreas Huber source = new FileSource(url + 7); 1928cb0c4168bf4b678e4a6edfcf409247016be20d5Andreas Huber } else if (strncasecmp(url, "http://", 7) 1938cb0c4168bf4b678e4a6edfcf409247016be20d5Andreas Huber && strncasecmp(url, "https://", 8)) { 194df42f949c8bd05b81d94633767514fff88f52062Andreas Huber return ERROR_UNSUPPORTED; 195a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } else { 196ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber { 197ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber Mutex::Autolock autoLock(mLock); 198ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber 199ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber if (mDisconnectPending) { 200ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber return ERROR_IO; 201ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber } 202ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber } 203ab8a0badb8fb1e294dacf2eb6a891439f348aff9Andreas Huber 204a44153c1a57202fb538659eb50706e60454d6273Andreas Huber status_t err = mHTTPDataSource->connect(url); 205a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 206a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (err != OK) { 207a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return err; 208a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 209a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 210a44153c1a57202fb538659eb50706e60454d6273Andreas Huber source = mHTTPDataSource; 211a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 212a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 213a44153c1a57202fb538659eb50706e60454d6273Andreas Huber off64_t size; 214a44153c1a57202fb538659eb50706e60454d6273Andreas Huber status_t err = source->getSize(&size); 215a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 216a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (err != OK) { 217a44153c1a57202fb538659eb50706e60454d6273Andreas Huber size = 65536; 218a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 219a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 220a44153c1a57202fb538659eb50706e60454d6273Andreas Huber sp<ABuffer> buffer = new ABuffer(size); 221a44153c1a57202fb538659eb50706e60454d6273Andreas Huber buffer->setRange(0, 0); 222a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 223a44153c1a57202fb538659eb50706e60454d6273Andreas Huber for (;;) { 224a44153c1a57202fb538659eb50706e60454d6273Andreas Huber size_t bufferRemaining = buffer->capacity() - buffer->size(); 225a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 226a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (bufferRemaining == 0) { 227a44153c1a57202fb538659eb50706e60454d6273Andreas Huber bufferRemaining = 32768; 228a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 229a44153c1a57202fb538659eb50706e60454d6273Andreas Huber LOGV("increasing download buffer to %d bytes", 230a44153c1a57202fb538659eb50706e60454d6273Andreas Huber buffer->size() + bufferRemaining); 231a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 232a44153c1a57202fb538659eb50706e60454d6273Andreas Huber sp<ABuffer> copy = new ABuffer(buffer->size() + bufferRemaining); 233a44153c1a57202fb538659eb50706e60454d6273Andreas Huber memcpy(copy->data(), buffer->data(), buffer->size()); 234a44153c1a57202fb538659eb50706e60454d6273Andreas Huber copy->setRange(0, buffer->size()); 235a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 236a44153c1a57202fb538659eb50706e60454d6273Andreas Huber buffer = copy; 237a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 238a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 239a44153c1a57202fb538659eb50706e60454d6273Andreas Huber ssize_t n = source->readAt( 240a44153c1a57202fb538659eb50706e60454d6273Andreas Huber buffer->size(), buffer->data() + buffer->size(), 241a44153c1a57202fb538659eb50706e60454d6273Andreas Huber bufferRemaining); 242a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 243a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (n < 0) { 24420ad3a341a96e7746015ccb7369fa567897e11f6Andreas Huber return n; 245a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 246a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 247a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (n == 0) { 248a44153c1a57202fb538659eb50706e60454d6273Andreas Huber break; 249a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 250a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 251a44153c1a57202fb538659eb50706e60454d6273Andreas Huber buffer->setRange(0, buffer->size() + (size_t)n); 252a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 253a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 254a44153c1a57202fb538659eb50706e60454d6273Andreas Huber *out = buffer; 255a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 256a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return OK; 257a44153c1a57202fb538659eb50706e60454d6273Andreas Huber} 258a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 259a44153c1a57202fb538659eb50706e60454d6273Andreas Hubersp<M3UParser> LiveSession::fetchPlaylist(const char *url) { 260a44153c1a57202fb538659eb50706e60454d6273Andreas Huber sp<ABuffer> buffer; 261a44153c1a57202fb538659eb50706e60454d6273Andreas Huber status_t err = fetchFile(url, &buffer); 262a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 263a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (err != OK) { 264a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return NULL; 265a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 266a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 267a44153c1a57202fb538659eb50706e60454d6273Andreas Huber sp<M3UParser> playlist = 268a44153c1a57202fb538659eb50706e60454d6273Andreas Huber new M3UParser(url, buffer->data(), buffer->size()); 269a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 270a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (playlist->initCheck() != OK) { 271a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return NULL; 272a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 273a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 274a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return playlist; 275a44153c1a57202fb538659eb50706e60454d6273Andreas Huber} 276a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 277a44153c1a57202fb538659eb50706e60454d6273Andreas Huberstatic double uniformRand() { 278a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return (double)rand() / RAND_MAX; 279a44153c1a57202fb538659eb50706e60454d6273Andreas Huber} 280a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 281a44153c1a57202fb538659eb50706e60454d6273Andreas Hubersize_t LiveSession::getBandwidthIndex() { 282a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (mBandwidthItems.size() == 0) { 283a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return 0; 284a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 285a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 286a44153c1a57202fb538659eb50706e60454d6273Andreas Huber#if 1 287a44153c1a57202fb538659eb50706e60454d6273Andreas Huber int32_t bandwidthBps; 288a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (mHTTPDataSource != NULL 289a44153c1a57202fb538659eb50706e60454d6273Andreas Huber && mHTTPDataSource->estimateBandwidth(&bandwidthBps)) { 290a44153c1a57202fb538659eb50706e60454d6273Andreas Huber LOGV("bandwidth estimated at %.2f kbps", bandwidthBps / 1024.0f); 291a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } else { 292a44153c1a57202fb538659eb50706e60454d6273Andreas Huber LOGV("no bandwidth estimate."); 293a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return 0; // Pick the lowest bandwidth stream by default. 294a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 295a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 296a44153c1a57202fb538659eb50706e60454d6273Andreas Huber char value[PROPERTY_VALUE_MAX]; 297a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (property_get("media.httplive.max-bw", value, NULL)) { 298a44153c1a57202fb538659eb50706e60454d6273Andreas Huber char *end; 299a44153c1a57202fb538659eb50706e60454d6273Andreas Huber long maxBw = strtoul(value, &end, 10); 300a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (end > value && *end == '\0') { 301a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (maxBw > 0 && bandwidthBps > maxBw) { 302a44153c1a57202fb538659eb50706e60454d6273Andreas Huber LOGV("bandwidth capped to %ld bps", maxBw); 303a44153c1a57202fb538659eb50706e60454d6273Andreas Huber bandwidthBps = maxBw; 304a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 305a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 306a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 307a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 308a44153c1a57202fb538659eb50706e60454d6273Andreas Huber // Consider only 80% of the available bandwidth usable. 309a44153c1a57202fb538659eb50706e60454d6273Andreas Huber bandwidthBps = (bandwidthBps * 8) / 10; 310a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 311a44153c1a57202fb538659eb50706e60454d6273Andreas Huber // Pick the highest bandwidth stream below or equal to estimated bandwidth. 312a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 313a44153c1a57202fb538659eb50706e60454d6273Andreas Huber size_t index = mBandwidthItems.size() - 1; 314a44153c1a57202fb538659eb50706e60454d6273Andreas Huber while (index > 0 && mBandwidthItems.itemAt(index).mBandwidth 315a44153c1a57202fb538659eb50706e60454d6273Andreas Huber > (size_t)bandwidthBps) { 316a44153c1a57202fb538659eb50706e60454d6273Andreas Huber --index; 317a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 318a44153c1a57202fb538659eb50706e60454d6273Andreas Huber#elif 0 319a44153c1a57202fb538659eb50706e60454d6273Andreas Huber // Change bandwidth at random() 320a44153c1a57202fb538659eb50706e60454d6273Andreas Huber size_t index = uniformRand() * mBandwidthItems.size(); 321a44153c1a57202fb538659eb50706e60454d6273Andreas Huber#elif 0 322a44153c1a57202fb538659eb50706e60454d6273Andreas Huber // There's a 50% chance to stay on the current bandwidth and 323a44153c1a57202fb538659eb50706e60454d6273Andreas Huber // a 50% chance to switch to the next higher bandwidth (wrapping around 324a44153c1a57202fb538659eb50706e60454d6273Andreas Huber // to lowest) 325a44153c1a57202fb538659eb50706e60454d6273Andreas Huber const size_t kMinIndex = 0; 326a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 327a44153c1a57202fb538659eb50706e60454d6273Andreas Huber size_t index; 328a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (mPrevBandwidthIndex < 0) { 329a44153c1a57202fb538659eb50706e60454d6273Andreas Huber index = kMinIndex; 330a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } else if (uniformRand() < 0.5) { 331a44153c1a57202fb538659eb50706e60454d6273Andreas Huber index = (size_t)mPrevBandwidthIndex; 332a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } else { 333a44153c1a57202fb538659eb50706e60454d6273Andreas Huber index = mPrevBandwidthIndex + 1; 334a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (index == mBandwidthItems.size()) { 335a44153c1a57202fb538659eb50706e60454d6273Andreas Huber index = kMinIndex; 336a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 337a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 338a44153c1a57202fb538659eb50706e60454d6273Andreas Huber#elif 0 339a44153c1a57202fb538659eb50706e60454d6273Andreas Huber // Pick the highest bandwidth stream below or equal to 1.2 Mbit/sec 340a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 341a44153c1a57202fb538659eb50706e60454d6273Andreas Huber size_t index = mBandwidthItems.size() - 1; 342a44153c1a57202fb538659eb50706e60454d6273Andreas Huber while (index > 0 && mBandwidthItems.itemAt(index).mBandwidth > 1200000) { 343a44153c1a57202fb538659eb50706e60454d6273Andreas Huber --index; 344a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 345a44153c1a57202fb538659eb50706e60454d6273Andreas Huber#else 346a44153c1a57202fb538659eb50706e60454d6273Andreas Huber size_t index = mBandwidthItems.size() - 1; // Highest bandwidth stream 347a44153c1a57202fb538659eb50706e60454d6273Andreas Huber#endif 348a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 349a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return index; 350a44153c1a57202fb538659eb50706e60454d6273Andreas Huber} 351a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 352a44153c1a57202fb538659eb50706e60454d6273Andreas Hubervoid LiveSession::onDownloadNext() { 353a44153c1a57202fb538659eb50706e60454d6273Andreas Huber size_t bandwidthIndex = getBandwidthIndex(); 354a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 355aea5aff45a1af14e249ac311f0a128a621a7d13eAndreas Huberrinse_repeat: 356a44153c1a57202fb538659eb50706e60454d6273Andreas Huber int64_t nowUs = ALooper::GetNowUs(); 357a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 358a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (mLastPlaylistFetchTimeUs < 0 359a44153c1a57202fb538659eb50706e60454d6273Andreas Huber || (ssize_t)bandwidthIndex != mPrevBandwidthIndex 360a44153c1a57202fb538659eb50706e60454d6273Andreas Huber || (!mPlaylist->isComplete() 361a44153c1a57202fb538659eb50706e60454d6273Andreas Huber && mLastPlaylistFetchTimeUs + kMaxPlaylistAgeUs <= nowUs)) { 362a44153c1a57202fb538659eb50706e60454d6273Andreas Huber AString url; 363a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (mBandwidthItems.size() > 0) { 364a44153c1a57202fb538659eb50706e60454d6273Andreas Huber url = mBandwidthItems.editItemAt(bandwidthIndex).mURI; 365a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } else { 366a44153c1a57202fb538659eb50706e60454d6273Andreas Huber url = mMasterURL; 367a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 368a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 369a44153c1a57202fb538659eb50706e60454d6273Andreas Huber bool firstTime = (mPlaylist == NULL); 370a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 371a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mPlaylist = fetchPlaylist(url.c_str()); 3726e6b1cae2bac1b78205cefab8e4e9e9538982965Andreas Huber if (mPlaylist == NULL) { 3736e6b1cae2bac1b78205cefab8e4e9e9538982965Andreas Huber LOGE("failed to load playlist at url '%s'", url.c_str()); 3746e6b1cae2bac1b78205cefab8e4e9e9538982965Andreas Huber mDataSource->queueEOS(ERROR_IO); 3756e6b1cae2bac1b78205cefab8e4e9e9538982965Andreas Huber return; 3766e6b1cae2bac1b78205cefab8e4e9e9538982965Andreas Huber } 377a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 378a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (firstTime) { 379a44153c1a57202fb538659eb50706e60454d6273Andreas Huber Mutex::Autolock autoLock(mLock); 380a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 381a44153c1a57202fb538659eb50706e60454d6273Andreas Huber int32_t targetDuration; 382a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (!mPlaylist->isComplete() 383a44153c1a57202fb538659eb50706e60454d6273Andreas Huber || !mPlaylist->meta()->findInt32( 384a44153c1a57202fb538659eb50706e60454d6273Andreas Huber "target-duration", &targetDuration)) { 385a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mDurationUs = -1; 386a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } else { 387a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mDurationUs = 1000000ll * targetDuration * mPlaylist->size(); 388a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 389a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 390a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 391a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mLastPlaylistFetchTimeUs = ALooper::GetNowUs(); 392a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 393a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 394a44153c1a57202fb538659eb50706e60454d6273Andreas Huber int32_t firstSeqNumberInPlaylist; 395a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (mPlaylist->meta() == NULL || !mPlaylist->meta()->findInt32( 396a44153c1a57202fb538659eb50706e60454d6273Andreas Huber "media-sequence", &firstSeqNumberInPlaylist)) { 397a44153c1a57202fb538659eb50706e60454d6273Andreas Huber firstSeqNumberInPlaylist = 0; 398a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 399a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 400a44153c1a57202fb538659eb50706e60454d6273Andreas Huber bool explicitDiscontinuity = false; 40122fc52f6f72f39e33c3970d0291de3569118aa5cAndreas Huber bool bandwidthChanged = false; 402a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 403a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (mSeekTimeUs >= 0) { 404a44153c1a57202fb538659eb50706e60454d6273Andreas Huber int32_t targetDuration; 405a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (mPlaylist->isComplete() && 406a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mPlaylist->meta()->findInt32( 407a44153c1a57202fb538659eb50706e60454d6273Andreas Huber "target-duration", &targetDuration)) { 408a44153c1a57202fb538659eb50706e60454d6273Andreas Huber int64_t seekTimeSecs = (mSeekTimeUs + 500000ll) / 1000000ll; 409a44153c1a57202fb538659eb50706e60454d6273Andreas Huber int64_t index = seekTimeSecs / targetDuration; 410a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 411a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (index >= 0 && index < mPlaylist->size()) { 41243c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber int32_t newSeqNumber = firstSeqNumberInPlaylist + index; 413a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 41443c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber if (newSeqNumber != mSeqNumber) { 41543c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber LOGI("seeking to seq no %d", newSeqNumber); 41643c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber 41743c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber mSeqNumber = newSeqNumber; 41843c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber 41943c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber mDataSource->reset(); 42043c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber 42122fc52f6f72f39e33c3970d0291de3569118aa5cAndreas Huber // reseting the data source will have had the 42222fc52f6f72f39e33c3970d0291de3569118aa5cAndreas Huber // side effect of discarding any previously queued 42322fc52f6f72f39e33c3970d0291de3569118aa5cAndreas Huber // bandwidth change discontinuity. 42422fc52f6f72f39e33c3970d0291de3569118aa5cAndreas Huber // Therefore we'll need to treat these explicit 42522fc52f6f72f39e33c3970d0291de3569118aa5cAndreas Huber // discontinuities as involving a bandwidth change 42622fc52f6f72f39e33c3970d0291de3569118aa5cAndreas Huber // even if they aren't directly. 42743c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber explicitDiscontinuity = true; 42822fc52f6f72f39e33c3970d0291de3569118aa5cAndreas Huber bandwidthChanged = true; 42943c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber } 430a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 431a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 432a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 433a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mSeekTimeUs = -1; 434a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 435a44153c1a57202fb538659eb50706e60454d6273Andreas Huber Mutex::Autolock autoLock(mLock); 436a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mSeekDone = true; 437a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mCondition.broadcast(); 438a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 439a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 440a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (mSeqNumber < 0) { 441a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (mPlaylist->isComplete()) { 442a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mSeqNumber = firstSeqNumberInPlaylist; 443a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } else { 444a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mSeqNumber = firstSeqNumberInPlaylist + mPlaylist->size() / 2; 445a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 446a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 447a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 448a44153c1a57202fb538659eb50706e60454d6273Andreas Huber int32_t lastSeqNumberInPlaylist = 449a44153c1a57202fb538659eb50706e60454d6273Andreas Huber firstSeqNumberInPlaylist + (int32_t)mPlaylist->size() - 1; 450a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 451a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (mSeqNumber < firstSeqNumberInPlaylist 452a44153c1a57202fb538659eb50706e60454d6273Andreas Huber || mSeqNumber > lastSeqNumberInPlaylist) { 45388b7ad413c4b6d08697069b18488641d6ce31fd3Andreas Huber if (mPrevBandwidthIndex != (ssize_t)bandwidthIndex) { 454aea5aff45a1af14e249ac311f0a128a621a7d13eAndreas Huber // Go back to the previous bandwidth. 455aea5aff45a1af14e249ac311f0a128a621a7d13eAndreas Huber 456aea5aff45a1af14e249ac311f0a128a621a7d13eAndreas Huber LOGI("new bandwidth does not have the sequence number " 457aea5aff45a1af14e249ac311f0a128a621a7d13eAndreas Huber "we're looking for, switching back to previous bandwidth"); 458aea5aff45a1af14e249ac311f0a128a621a7d13eAndreas Huber 459aea5aff45a1af14e249ac311f0a128a621a7d13eAndreas Huber mLastPlaylistFetchTimeUs = -1; 460aea5aff45a1af14e249ac311f0a128a621a7d13eAndreas Huber bandwidthIndex = mPrevBandwidthIndex; 461aea5aff45a1af14e249ac311f0a128a621a7d13eAndreas Huber goto rinse_repeat; 462aea5aff45a1af14e249ac311f0a128a621a7d13eAndreas Huber } 463aea5aff45a1af14e249ac311f0a128a621a7d13eAndreas Huber 464a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (!mPlaylist->isComplete() 465a44153c1a57202fb538659eb50706e60454d6273Andreas Huber && mSeqNumber > lastSeqNumberInPlaylist 466a44153c1a57202fb538659eb50706e60454d6273Andreas Huber && mNumRetries < kMaxNumRetries) { 467a44153c1a57202fb538659eb50706e60454d6273Andreas Huber ++mNumRetries; 468a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 469a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mLastPlaylistFetchTimeUs = -1; 4705bc087c573c70c84c6a39946457590b42d392a33Andreas Huber postMonitorQueue(3000000ll); 471a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return; 472a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 473a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 474a44153c1a57202fb538659eb50706e60454d6273Andreas Huber LOGE("Cannot find sequence number %d in playlist " 475a44153c1a57202fb538659eb50706e60454d6273Andreas Huber "(contains %d - %d)", 476a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mSeqNumber, firstSeqNumberInPlaylist, 477a44153c1a57202fb538659eb50706e60454d6273Andreas Huber firstSeqNumberInPlaylist + mPlaylist->size() - 1); 478a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 479a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mDataSource->queueEOS(ERROR_END_OF_STREAM); 480a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return; 481a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 482a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 483a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mNumRetries = 0; 484a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 485a44153c1a57202fb538659eb50706e60454d6273Andreas Huber AString uri; 486a44153c1a57202fb538659eb50706e60454d6273Andreas Huber sp<AMessage> itemMeta; 487a44153c1a57202fb538659eb50706e60454d6273Andreas Huber CHECK(mPlaylist->itemAt( 488a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mSeqNumber - firstSeqNumberInPlaylist, 489a44153c1a57202fb538659eb50706e60454d6273Andreas Huber &uri, 490a44153c1a57202fb538659eb50706e60454d6273Andreas Huber &itemMeta)); 491a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 492a44153c1a57202fb538659eb50706e60454d6273Andreas Huber int32_t val; 493a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (itemMeta->findInt32("discontinuity", &val) && val != 0) { 494a44153c1a57202fb538659eb50706e60454d6273Andreas Huber explicitDiscontinuity = true; 495a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 496a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 497a44153c1a57202fb538659eb50706e60454d6273Andreas Huber sp<ABuffer> buffer; 498a44153c1a57202fb538659eb50706e60454d6273Andreas Huber status_t err = fetchFile(uri.c_str(), &buffer); 4996e6b1cae2bac1b78205cefab8e4e9e9538982965Andreas Huber if (err != OK) { 5006e6b1cae2bac1b78205cefab8e4e9e9538982965Andreas Huber LOGE("failed to fetch .ts segment at url '%s'", uri.c_str()); 5016e6b1cae2bac1b78205cefab8e4e9e9538982965Andreas Huber mDataSource->queueEOS(err); 5026e6b1cae2bac1b78205cefab8e4e9e9538982965Andreas Huber return; 5036e6b1cae2bac1b78205cefab8e4e9e9538982965Andreas Huber } 504a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 50543c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber CHECK(buffer != NULL); 50643c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber 50788b348910a607ae399bcd693dd42a231d98da2c9Andreas Huber err = decryptBuffer(mSeqNumber - firstSeqNumberInPlaylist, buffer); 50888b348910a607ae399bcd693dd42a231d98da2c9Andreas Huber 50988b348910a607ae399bcd693dd42a231d98da2c9Andreas Huber if (err != OK) { 51088b348910a607ae399bcd693dd42a231d98da2c9Andreas Huber LOGE("decryptBuffer failed w/ error %d", err); 51188b348910a607ae399bcd693dd42a231d98da2c9Andreas Huber 51288b348910a607ae399bcd693dd42a231d98da2c9Andreas Huber mDataSource->queueEOS(err); 51388b348910a607ae399bcd693dd42a231d98da2c9Andreas Huber return; 51488b348910a607ae399bcd693dd42a231d98da2c9Andreas Huber } 515a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 516a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (buffer->size() == 0 || buffer->data()[0] != 0x47) { 517a44153c1a57202fb538659eb50706e60454d6273Andreas Huber // Not a transport stream??? 518a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 519a44153c1a57202fb538659eb50706e60454d6273Andreas Huber LOGE("This doesn't look like a transport stream..."); 520a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 521bc7f5b2e56107cfeaeeab13cf8979379e3c2f139Andreas Huber mBandwidthItems.removeAt(bandwidthIndex); 522bc7f5b2e56107cfeaeeab13cf8979379e3c2f139Andreas Huber 523bc7f5b2e56107cfeaeeab13cf8979379e3c2f139Andreas Huber if (mBandwidthItems.isEmpty()) { 524bc7f5b2e56107cfeaeeab13cf8979379e3c2f139Andreas Huber mDataSource->queueEOS(ERROR_UNSUPPORTED); 525bc7f5b2e56107cfeaeeab13cf8979379e3c2f139Andreas Huber return; 526bc7f5b2e56107cfeaeeab13cf8979379e3c2f139Andreas Huber } 527bc7f5b2e56107cfeaeeab13cf8979379e3c2f139Andreas Huber 528bc7f5b2e56107cfeaeeab13cf8979379e3c2f139Andreas Huber LOGI("Retrying with a different bandwidth stream."); 529bc7f5b2e56107cfeaeeab13cf8979379e3c2f139Andreas Huber 530bc7f5b2e56107cfeaeeab13cf8979379e3c2f139Andreas Huber mLastPlaylistFetchTimeUs = -1; 531bc7f5b2e56107cfeaeeab13cf8979379e3c2f139Andreas Huber bandwidthIndex = getBandwidthIndex(); 532bc7f5b2e56107cfeaeeab13cf8979379e3c2f139Andreas Huber mPrevBandwidthIndex = bandwidthIndex; 533bc7f5b2e56107cfeaeeab13cf8979379e3c2f139Andreas Huber mSeqNumber = -1; 534bc7f5b2e56107cfeaeeab13cf8979379e3c2f139Andreas Huber 535bc7f5b2e56107cfeaeeab13cf8979379e3c2f139Andreas Huber goto rinse_repeat; 536a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 537a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 53822fc52f6f72f39e33c3970d0291de3569118aa5cAndreas Huber if ((size_t)mPrevBandwidthIndex != bandwidthIndex) { 53922fc52f6f72f39e33c3970d0291de3569118aa5cAndreas Huber bandwidthChanged = true; 54022fc52f6f72f39e33c3970d0291de3569118aa5cAndreas Huber } 54122fc52f6f72f39e33c3970d0291de3569118aa5cAndreas Huber 54222fc52f6f72f39e33c3970d0291de3569118aa5cAndreas Huber if (mPrevBandwidthIndex < 0) { 54322fc52f6f72f39e33c3970d0291de3569118aa5cAndreas Huber // Don't signal a bandwidth change at the very beginning of 54422fc52f6f72f39e33c3970d0291de3569118aa5cAndreas Huber // playback. 54522fc52f6f72f39e33c3970d0291de3569118aa5cAndreas Huber bandwidthChanged = false; 54622fc52f6f72f39e33c3970d0291de3569118aa5cAndreas Huber } 5473831a066bcf1019864a94d2bc7b4c9241efc5c22Andreas Huber 5483831a066bcf1019864a94d2bc7b4c9241efc5c22Andreas Huber if (explicitDiscontinuity || bandwidthChanged) { 549a44153c1a57202fb538659eb50706e60454d6273Andreas Huber // Signal discontinuity. 550a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 55143c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber LOGI("queueing discontinuity (explicit=%d, bandwidthChanged=%d)", 55243c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber explicitDiscontinuity, bandwidthChanged); 55343c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber 554a44153c1a57202fb538659eb50706e60454d6273Andreas Huber sp<ABuffer> tmp = new ABuffer(188); 555a44153c1a57202fb538659eb50706e60454d6273Andreas Huber memset(tmp->data(), 0, tmp->size()); 5563831a066bcf1019864a94d2bc7b4c9241efc5c22Andreas Huber tmp->data()[1] = bandwidthChanged; 557a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 558a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mDataSource->queueBuffer(tmp); 559a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 560a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 561a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mDataSource->queueBuffer(buffer); 562a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 563a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mPrevBandwidthIndex = bandwidthIndex; 564a44153c1a57202fb538659eb50706e60454d6273Andreas Huber ++mSeqNumber; 565a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 566a44153c1a57202fb538659eb50706e60454d6273Andreas Huber postMonitorQueue(); 567a44153c1a57202fb538659eb50706e60454d6273Andreas Huber} 568a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 569a44153c1a57202fb538659eb50706e60454d6273Andreas Hubervoid LiveSession::onMonitorQueue() { 570a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (mSeekTimeUs >= 0 571a44153c1a57202fb538659eb50706e60454d6273Andreas Huber || mDataSource->countQueuedBuffers() < kMaxNumQueuedFragments) { 572a44153c1a57202fb538659eb50706e60454d6273Andreas Huber onDownloadNext(); 573a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } else { 574a44153c1a57202fb538659eb50706e60454d6273Andreas Huber postMonitorQueue(1000000ll); 575a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 576a44153c1a57202fb538659eb50706e60454d6273Andreas Huber} 577a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 578a44153c1a57202fb538659eb50706e60454d6273Andreas Huberstatus_t LiveSession::decryptBuffer( 579a44153c1a57202fb538659eb50706e60454d6273Andreas Huber size_t playlistIndex, const sp<ABuffer> &buffer) { 580a44153c1a57202fb538659eb50706e60454d6273Andreas Huber sp<AMessage> itemMeta; 581a44153c1a57202fb538659eb50706e60454d6273Andreas Huber bool found = false; 582a44153c1a57202fb538659eb50706e60454d6273Andreas Huber AString method; 583a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 584a44153c1a57202fb538659eb50706e60454d6273Andreas Huber for (ssize_t i = playlistIndex; i >= 0; --i) { 585a44153c1a57202fb538659eb50706e60454d6273Andreas Huber AString uri; 586a44153c1a57202fb538659eb50706e60454d6273Andreas Huber CHECK(mPlaylist->itemAt(i, &uri, &itemMeta)); 587a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 588a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (itemMeta->findString("cipher-method", &method)) { 589a44153c1a57202fb538659eb50706e60454d6273Andreas Huber found = true; 590a44153c1a57202fb538659eb50706e60454d6273Andreas Huber break; 591a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 592a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 593a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 594a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (!found) { 595a44153c1a57202fb538659eb50706e60454d6273Andreas Huber method = "NONE"; 596a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 597a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 598a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (method == "NONE") { 599a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return OK; 600a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } else if (!(method == "AES-128")) { 601a44153c1a57202fb538659eb50706e60454d6273Andreas Huber LOGE("Unsupported cipher method '%s'", method.c_str()); 602a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return ERROR_UNSUPPORTED; 603a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 604a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 605a44153c1a57202fb538659eb50706e60454d6273Andreas Huber AString keyURI; 606a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (!itemMeta->findString("cipher-uri", &keyURI)) { 607a44153c1a57202fb538659eb50706e60454d6273Andreas Huber LOGE("Missing key uri"); 608a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return ERROR_MALFORMED; 609a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 610a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 611a44153c1a57202fb538659eb50706e60454d6273Andreas Huber ssize_t index = mAESKeyForURI.indexOfKey(keyURI); 612a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 613a44153c1a57202fb538659eb50706e60454d6273Andreas Huber sp<ABuffer> key; 614a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (index >= 0) { 615a44153c1a57202fb538659eb50706e60454d6273Andreas Huber key = mAESKeyForURI.valueAt(index); 616a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } else { 617a44153c1a57202fb538659eb50706e60454d6273Andreas Huber key = new ABuffer(16); 618a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 619a44153c1a57202fb538659eb50706e60454d6273Andreas Huber sp<NuHTTPDataSource> keySource = new NuHTTPDataSource; 620a44153c1a57202fb538659eb50706e60454d6273Andreas Huber status_t err = keySource->connect(keyURI.c_str()); 621a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 622a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (err == OK) { 623a44153c1a57202fb538659eb50706e60454d6273Andreas Huber size_t offset = 0; 624a44153c1a57202fb538659eb50706e60454d6273Andreas Huber while (offset < 16) { 625a44153c1a57202fb538659eb50706e60454d6273Andreas Huber ssize_t n = keySource->readAt( 626a44153c1a57202fb538659eb50706e60454d6273Andreas Huber offset, key->data() + offset, 16 - offset); 627a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (n <= 0) { 628a44153c1a57202fb538659eb50706e60454d6273Andreas Huber err = ERROR_IO; 629a44153c1a57202fb538659eb50706e60454d6273Andreas Huber break; 630a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 631a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 632a44153c1a57202fb538659eb50706e60454d6273Andreas Huber offset += n; 633a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 634a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 635a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 636a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (err != OK) { 637a44153c1a57202fb538659eb50706e60454d6273Andreas Huber LOGE("failed to fetch cipher key from '%s'.", keyURI.c_str()); 638a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return ERROR_IO; 639a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 640a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 641a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mAESKeyForURI.add(keyURI, key); 642a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 643a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 644a44153c1a57202fb538659eb50706e60454d6273Andreas Huber AES_KEY aes_key; 645a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (AES_set_decrypt_key(key->data(), 128, &aes_key) != 0) { 646a44153c1a57202fb538659eb50706e60454d6273Andreas Huber LOGE("failed to set AES decryption key."); 647a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return UNKNOWN_ERROR; 648a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 649a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 650a44153c1a57202fb538659eb50706e60454d6273Andreas Huber unsigned char aes_ivec[16]; 651a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 652a44153c1a57202fb538659eb50706e60454d6273Andreas Huber AString iv; 653a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (itemMeta->findString("cipher-iv", &iv)) { 654a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if ((!iv.startsWith("0x") && !iv.startsWith("0X")) 655a44153c1a57202fb538659eb50706e60454d6273Andreas Huber || iv.size() != 16 * 2 + 2) { 656a44153c1a57202fb538659eb50706e60454d6273Andreas Huber LOGE("malformed cipher IV '%s'.", iv.c_str()); 657a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return ERROR_MALFORMED; 658a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 659a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 660a44153c1a57202fb538659eb50706e60454d6273Andreas Huber memset(aes_ivec, 0, sizeof(aes_ivec)); 661a44153c1a57202fb538659eb50706e60454d6273Andreas Huber for (size_t i = 0; i < 16; ++i) { 662a44153c1a57202fb538659eb50706e60454d6273Andreas Huber char c1 = tolower(iv.c_str()[2 + 2 * i]); 663a44153c1a57202fb538659eb50706e60454d6273Andreas Huber char c2 = tolower(iv.c_str()[3 + 2 * i]); 664a44153c1a57202fb538659eb50706e60454d6273Andreas Huber if (!isxdigit(c1) || !isxdigit(c2)) { 665a44153c1a57202fb538659eb50706e60454d6273Andreas Huber LOGE("malformed cipher IV '%s'.", iv.c_str()); 666a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return ERROR_MALFORMED; 667a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 668a44153c1a57202fb538659eb50706e60454d6273Andreas Huber uint8_t nibble1 = isdigit(c1) ? c1 - '0' : c1 - 'a' + 10; 669a44153c1a57202fb538659eb50706e60454d6273Andreas Huber uint8_t nibble2 = isdigit(c2) ? c2 - '0' : c2 - 'a' + 10; 670a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 671a44153c1a57202fb538659eb50706e60454d6273Andreas Huber aes_ivec[i] = nibble1 << 4 | nibble2; 672a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 673a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } else { 674a44153c1a57202fb538659eb50706e60454d6273Andreas Huber memset(aes_ivec, 0, sizeof(aes_ivec)); 675a44153c1a57202fb538659eb50706e60454d6273Andreas Huber aes_ivec[15] = mSeqNumber & 0xff; 676a44153c1a57202fb538659eb50706e60454d6273Andreas Huber aes_ivec[14] = (mSeqNumber >> 8) & 0xff; 677a44153c1a57202fb538659eb50706e60454d6273Andreas Huber aes_ivec[13] = (mSeqNumber >> 16) & 0xff; 678a44153c1a57202fb538659eb50706e60454d6273Andreas Huber aes_ivec[12] = (mSeqNumber >> 24) & 0xff; 679a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 680a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 681a44153c1a57202fb538659eb50706e60454d6273Andreas Huber AES_cbc_encrypt( 682a44153c1a57202fb538659eb50706e60454d6273Andreas Huber buffer->data(), buffer->data(), buffer->size(), 683a44153c1a57202fb538659eb50706e60454d6273Andreas Huber &aes_key, aes_ivec, AES_DECRYPT); 684a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 685a44153c1a57202fb538659eb50706e60454d6273Andreas Huber // hexdump(buffer->data(), buffer->size()); 686a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 687a44153c1a57202fb538659eb50706e60454d6273Andreas Huber size_t n = buffer->size(); 688a44153c1a57202fb538659eb50706e60454d6273Andreas Huber CHECK_GT(n, 0u); 689a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 690a44153c1a57202fb538659eb50706e60454d6273Andreas Huber size_t pad = buffer->data()[n - 1]; 691a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 692a44153c1a57202fb538659eb50706e60454d6273Andreas Huber CHECK_GT(pad, 0u); 693a44153c1a57202fb538659eb50706e60454d6273Andreas Huber CHECK_LE(pad, 16u); 694a44153c1a57202fb538659eb50706e60454d6273Andreas Huber CHECK_GE((size_t)n, pad); 695a44153c1a57202fb538659eb50706e60454d6273Andreas Huber for (size_t i = 0; i < pad; ++i) { 696a44153c1a57202fb538659eb50706e60454d6273Andreas Huber CHECK_EQ((unsigned)buffer->data()[n - 1 - i], pad); 697a44153c1a57202fb538659eb50706e60454d6273Andreas Huber } 698a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 699a44153c1a57202fb538659eb50706e60454d6273Andreas Huber n -= pad; 700a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 701a44153c1a57202fb538659eb50706e60454d6273Andreas Huber buffer->setRange(buffer->offset(), n); 702a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 703a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return OK; 704a44153c1a57202fb538659eb50706e60454d6273Andreas Huber} 705a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 706a44153c1a57202fb538659eb50706e60454d6273Andreas Hubervoid LiveSession::postMonitorQueue(int64_t delayUs) { 707a44153c1a57202fb538659eb50706e60454d6273Andreas Huber sp<AMessage> msg = new AMessage(kWhatMonitorQueue, id()); 708a44153c1a57202fb538659eb50706e60454d6273Andreas Huber msg->setInt32("generation", ++mMonitorQueueGeneration); 709a44153c1a57202fb538659eb50706e60454d6273Andreas Huber msg->post(delayUs); 710a44153c1a57202fb538659eb50706e60454d6273Andreas Huber} 711a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 712a44153c1a57202fb538659eb50706e60454d6273Andreas Hubervoid LiveSession::onSeek(const sp<AMessage> &msg) { 713a44153c1a57202fb538659eb50706e60454d6273Andreas Huber int64_t timeUs; 714a44153c1a57202fb538659eb50706e60454d6273Andreas Huber CHECK(msg->findInt64("timeUs", &timeUs)); 715a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 716a44153c1a57202fb538659eb50706e60454d6273Andreas Huber mSeekTimeUs = timeUs; 717a44153c1a57202fb538659eb50706e60454d6273Andreas Huber postMonitorQueue(); 718a44153c1a57202fb538659eb50706e60454d6273Andreas Huber} 719a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 720a44153c1a57202fb538659eb50706e60454d6273Andreas Huberstatus_t LiveSession::getDuration(int64_t *durationUs) { 721a44153c1a57202fb538659eb50706e60454d6273Andreas Huber Mutex::Autolock autoLock(mLock); 722a44153c1a57202fb538659eb50706e60454d6273Andreas Huber *durationUs = mDurationUs; 723a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 724a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return OK; 725a44153c1a57202fb538659eb50706e60454d6273Andreas Huber} 726a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 727a44153c1a57202fb538659eb50706e60454d6273Andreas Huberbool LiveSession::isSeekable() { 728a44153c1a57202fb538659eb50706e60454d6273Andreas Huber int64_t durationUs; 729a44153c1a57202fb538659eb50706e60454d6273Andreas Huber return getDuration(&durationUs) == OK && durationUs >= 0; 730a44153c1a57202fb538659eb50706e60454d6273Andreas Huber} 731a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 732a44153c1a57202fb538659eb50706e60454d6273Andreas Huber} // namespace android 733a44153c1a57202fb538659eb50706e60454d6273Andreas Huber 734