17a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang /* 26655174826330afe66ef766258181ae8c11f3f6cInsun Kang * Copyright (C) 2012 The Android Open Source Project 37a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang * 47a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang * Licensed under the Apache License, Version 2.0 (the "License"); 57a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang * you may not use this file except in compliance with the License. 67a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang * You may obtain a copy of the License at 77a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang * 87a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang * http://www.apache.org/licenses/LICENSE-2.0 97a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang * 107a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang * Unless required by applicable law or agreed to in writing, software 117a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang * distributed under the License is distributed on an "AS IS" BASIS, 127a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 137a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang * See the License for the specific language governing permissions and 147a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang * limitations under the License. 157a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang */ 167a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang 177a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang//#define LOG_NDEBUG 0 187a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang#define LOG_TAG "TimedTextPlayer" 197a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang#include <utils/Log.h> 207a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang 212f0632f12cd02b0350918720443c888b48f4417bInsun Kang#include <limits.h> 22f1d5aa162c02a16b7195a43a9bcea4d592600ac4James Dong#include <media/stagefright/foundation/ADebug.h> 236655174826330afe66ef766258181ae8c11f3f6cInsun Kang#include <media/stagefright/foundation/AMessage.h> 243254b25e8b0f674ccc2226609e01dd86a600802eInsun Kang#include <media/stagefright/timedtext/TimedTextDriver.h> 257a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang#include <media/stagefright/MediaErrors.h> 266655174826330afe66ef766258181ae8c11f3f6cInsun Kang#include <media/MediaPlayerInterface.h> 273b573f7bf1c5736d500e39013b8d32478a1429e6Gloria Wang 28965d08ba16ee82bc85f69546360c18e7da907406Gloria Wang#include "TimedTextPlayer.h" 297a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang 306655174826330afe66ef766258181ae8c11f3f6cInsun Kang#include "TimedTextSource.h" 317a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang 326655174826330afe66ef766258181ae8c11f3f6cInsun Kangnamespace android { 337a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang 342f0632f12cd02b0350918720443c888b48f4417bInsun Kang// Event should be fired a bit earlier considering the processing time till 352f0632f12cd02b0350918720443c888b48f4417bInsun Kang// application actually gets the notification message. 366655174826330afe66ef766258181ae8c11f3f6cInsun Kangstatic const int64_t kAdjustmentProcessingTimeUs = 100000ll; 372f0632f12cd02b0350918720443c888b48f4417bInsun Kangstatic const int64_t kMaxDelayUs = 5000000ll; 38bae00e73c6d1d87cc5fd42b50f95d1d9572162eaInsun Kangstatic const int64_t kWaitTimeUsToRetryRead = 100000ll; 392f0632f12cd02b0350918720443c888b48f4417bInsun Kangstatic const int64_t kInvalidTimeUs = INT_MIN; 407a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang 416655174826330afe66ef766258181ae8c11f3f6cInsun KangTimedTextPlayer::TimedTextPlayer(const wp<MediaPlayerBase> &listener) 426655174826330afe66ef766258181ae8c11f3f6cInsun Kang : mListener(listener), 436655174826330afe66ef766258181ae8c11f3f6cInsun Kang mSource(NULL), 446472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang mPendingSeekTimeUs(kInvalidTimeUs), 456472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang mPaused(false), 466655174826330afe66ef766258181ae8c11f3f6cInsun Kang mSendSubtitleGeneration(0) { 477a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang} 487a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang 497a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria WangTimedTextPlayer::~TimedTextPlayer() { 506655174826330afe66ef766258181ae8c11f3f6cInsun Kang if (mSource != NULL) { 516655174826330afe66ef766258181ae8c11f3f6cInsun Kang mSource->stop(); 526655174826330afe66ef766258181ae8c11f3f6cInsun Kang mSource.clear(); 536655174826330afe66ef766258181ae8c11f3f6cInsun Kang mSource = NULL; 547a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang } 557a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang} 567a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang 576655174826330afe66ef766258181ae8c11f3f6cInsun Kangvoid TimedTextPlayer::start() { 586472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang (new AMessage(kWhatStart, id()))->post(); 597a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang} 607a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang 617a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wangvoid TimedTextPlayer::pause() { 626655174826330afe66ef766258181ae8c11f3f6cInsun Kang (new AMessage(kWhatPause, id()))->post(); 637a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang} 647a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang 65bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kangvoid TimedTextPlayer::resume() { 66bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kang (new AMessage(kWhatResume, id()))->post(); 67bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kang} 68bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kang 696655174826330afe66ef766258181ae8c11f3f6cInsun Kangvoid TimedTextPlayer::seekToAsync(int64_t timeUs) { 706655174826330afe66ef766258181ae8c11f3f6cInsun Kang sp<AMessage> msg = new AMessage(kWhatSeek, id()); 716655174826330afe66ef766258181ae8c11f3f6cInsun Kang msg->setInt64("seekTimeUs", timeUs); 726655174826330afe66ef766258181ae8c11f3f6cInsun Kang msg->post(); 737a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang} 747a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang 756655174826330afe66ef766258181ae8c11f3f6cInsun Kangvoid TimedTextPlayer::setDataSource(sp<TimedTextSource> source) { 766655174826330afe66ef766258181ae8c11f3f6cInsun Kang sp<AMessage> msg = new AMessage(kWhatSetSource, id()); 776655174826330afe66ef766258181ae8c11f3f6cInsun Kang msg->setObject("source", source); 786655174826330afe66ef766258181ae8c11f3f6cInsun Kang msg->post(); 797a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang} 807a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang 816655174826330afe66ef766258181ae8c11f3f6cInsun Kangvoid TimedTextPlayer::onMessageReceived(const sp<AMessage> &msg) { 826655174826330afe66ef766258181ae8c11f3f6cInsun Kang switch (msg->what()) { 836655174826330afe66ef766258181ae8c11f3f6cInsun Kang case kWhatPause: { 846472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang mPaused = true; 856655174826330afe66ef766258181ae8c11f3f6cInsun Kang break; 86965d08ba16ee82bc85f69546360c18e7da907406Gloria Wang } 87bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kang case kWhatResume: { 886472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang mPaused = false; 896472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang if (mPendingSeekTimeUs != kInvalidTimeUs) { 906472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang seekToAsync(mPendingSeekTimeUs); 916472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang mPendingSeekTimeUs = kInvalidTimeUs; 926472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang } else { 936472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang doRead(); 946472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang } 956472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang break; 966472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang } 976472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang case kWhatStart: { 986472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang sp<MediaPlayerBase> listener = mListener.promote(); 996472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang if (listener == NULL) { 1006472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang ALOGE("Listener is NULL when kWhatStart is received."); 1016472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang break; 1026472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang } 1036472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang mPaused = false; 1046472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang mPendingSeekTimeUs = kInvalidTimeUs; 1056472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang int32_t positionMs = 0; 1066472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang listener->getCurrentPosition(&positionMs); 1076472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang int64_t seekTimeUs = positionMs * 1000ll; 1086472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang 1096472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang notifyListener(); 1106472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang mSendSubtitleGeneration++; 1116472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang doSeekAndRead(seekTimeUs); 112bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kang break; 113bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kang } 1144e1c91dd07fad96ee2387eda510c6da45e5dff0aInsun Kang case kWhatRetryRead: { 115bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kang int32_t generation = -1; 116bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kang CHECK(msg->findInt32("generation", &generation)); 117bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kang if (generation != mSendSubtitleGeneration) { 118bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kang // Drop obsolete msg. 119bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kang break; 120bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kang } 1214e1c91dd07fad96ee2387eda510c6da45e5dff0aInsun Kang int64_t seekTimeUs; 1224e1c91dd07fad96ee2387eda510c6da45e5dff0aInsun Kang int seekMode; 1234e1c91dd07fad96ee2387eda510c6da45e5dff0aInsun Kang if (msg->findInt64("seekTimeUs", &seekTimeUs) && 1244e1c91dd07fad96ee2387eda510c6da45e5dff0aInsun Kang msg->findInt32("seekMode", &seekMode)) { 1254e1c91dd07fad96ee2387eda510c6da45e5dff0aInsun Kang MediaSource::ReadOptions options; 1264e1c91dd07fad96ee2387eda510c6da45e5dff0aInsun Kang options.setSeekTo( 1274e1c91dd07fad96ee2387eda510c6da45e5dff0aInsun Kang seekTimeUs, 1284e1c91dd07fad96ee2387eda510c6da45e5dff0aInsun Kang static_cast<MediaSource::ReadOptions::SeekMode>(seekMode)); 1294e1c91dd07fad96ee2387eda510c6da45e5dff0aInsun Kang doRead(&options); 1304e1c91dd07fad96ee2387eda510c6da45e5dff0aInsun Kang } else { 1314e1c91dd07fad96ee2387eda510c6da45e5dff0aInsun Kang doRead(); 1324e1c91dd07fad96ee2387eda510c6da45e5dff0aInsun Kang } 1334e1c91dd07fad96ee2387eda510c6da45e5dff0aInsun Kang break; 1344e1c91dd07fad96ee2387eda510c6da45e5dff0aInsun Kang } 1356655174826330afe66ef766258181ae8c11f3f6cInsun Kang case kWhatSeek: { 136bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kang int64_t seekTimeUs = kInvalidTimeUs; 137bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kang // Clear a displayed timed text before seeking. 138bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kang notifyListener(); 1396655174826330afe66ef766258181ae8c11f3f6cInsun Kang msg->findInt64("seekTimeUs", &seekTimeUs); 140bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kang if (seekTimeUs == kInvalidTimeUs) { 1416655174826330afe66ef766258181ae8c11f3f6cInsun Kang sp<MediaPlayerBase> listener = mListener.promote(); 1426655174826330afe66ef766258181ae8c11f3f6cInsun Kang if (listener != NULL) { 1436655174826330afe66ef766258181ae8c11f3f6cInsun Kang int32_t positionMs = 0; 1446655174826330afe66ef766258181ae8c11f3f6cInsun Kang listener->getCurrentPosition(&positionMs); 1456655174826330afe66ef766258181ae8c11f3f6cInsun Kang seekTimeUs = positionMs * 1000ll; 1466655174826330afe66ef766258181ae8c11f3f6cInsun Kang } 1476655174826330afe66ef766258181ae8c11f3f6cInsun Kang } 1486472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang if (mPaused) { 1496472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang mPendingSeekTimeUs = seekTimeUs; 1506472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang break; 1516472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang } 1526472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang mSendSubtitleGeneration++; 1536655174826330afe66ef766258181ae8c11f3f6cInsun Kang doSeekAndRead(seekTimeUs); 1546655174826330afe66ef766258181ae8c11f3f6cInsun Kang break; 1556655174826330afe66ef766258181ae8c11f3f6cInsun Kang } 1566655174826330afe66ef766258181ae8c11f3f6cInsun Kang case kWhatSendSubtitle: { 1576655174826330afe66ef766258181ae8c11f3f6cInsun Kang int32_t generation; 1586655174826330afe66ef766258181ae8c11f3f6cInsun Kang CHECK(msg->findInt32("generation", &generation)); 1596655174826330afe66ef766258181ae8c11f3f6cInsun Kang if (generation != mSendSubtitleGeneration) { 160bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kang // Drop obsolete msg. 161bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kang break; 1626655174826330afe66ef766258181ae8c11f3f6cInsun Kang } 1632f0632f12cd02b0350918720443c888b48f4417bInsun Kang // If current time doesn't reach to the fire time, 1642f0632f12cd02b0350918720443c888b48f4417bInsun Kang // re-post the message with the adjusted delay time. 1652f0632f12cd02b0350918720443c888b48f4417bInsun Kang int64_t fireTimeUs = kInvalidTimeUs; 1662f0632f12cd02b0350918720443c888b48f4417bInsun Kang if (msg->findInt64("fireTimeUs", &fireTimeUs)) { 1672f0632f12cd02b0350918720443c888b48f4417bInsun Kang // TODO: check if fireTimeUs is not kInvalidTimeUs. 1682f0632f12cd02b0350918720443c888b48f4417bInsun Kang int64_t delayUs = delayUsFromCurrentTime(fireTimeUs); 1692f0632f12cd02b0350918720443c888b48f4417bInsun Kang if (delayUs > 0) { 1702f0632f12cd02b0350918720443c888b48f4417bInsun Kang msg->post(delayUs); 1712f0632f12cd02b0350918720443c888b48f4417bInsun Kang break; 1722f0632f12cd02b0350918720443c888b48f4417bInsun Kang } 1732f0632f12cd02b0350918720443c888b48f4417bInsun Kang } 1746655174826330afe66ef766258181ae8c11f3f6cInsun Kang sp<RefBase> obj; 175c4ddeeb06a9defc359e99d1ce20882e1d688d1b3Insun Kang if (msg->findObject("subtitle", &obj)) { 1766655174826330afe66ef766258181ae8c11f3f6cInsun Kang sp<ParcelEvent> parcelEvent; 1776655174826330afe66ef766258181ae8c11f3f6cInsun Kang parcelEvent = static_cast<ParcelEvent*>(obj.get()); 178f9d660a5e0196240add5daf0199f128d471e592cInsun Kang notifyListener(&(parcelEvent->parcel)); 179c4ddeeb06a9defc359e99d1ce20882e1d688d1b3Insun Kang doRead(); 1806655174826330afe66ef766258181ae8c11f3f6cInsun Kang } else { 181f9d660a5e0196240add5daf0199f128d471e592cInsun Kang notifyListener(); 1826655174826330afe66ef766258181ae8c11f3f6cInsun Kang } 1836655174826330afe66ef766258181ae8c11f3f6cInsun Kang break; 1846655174826330afe66ef766258181ae8c11f3f6cInsun Kang } 1856655174826330afe66ef766258181ae8c11f3f6cInsun Kang case kWhatSetSource: { 18623580bb8d6cafbc2b65dd0a4ce1acb52562d1b05Insun Kang mSendSubtitleGeneration++; 1876655174826330afe66ef766258181ae8c11f3f6cInsun Kang sp<RefBase> obj; 1886655174826330afe66ef766258181ae8c11f3f6cInsun Kang msg->findObject("source", &obj); 1896655174826330afe66ef766258181ae8c11f3f6cInsun Kang if (mSource != NULL) { 1906655174826330afe66ef766258181ae8c11f3f6cInsun Kang mSource->stop(); 19123580bb8d6cafbc2b65dd0a4ce1acb52562d1b05Insun Kang mSource.clear(); 19223580bb8d6cafbc2b65dd0a4ce1acb52562d1b05Insun Kang mSource = NULL; 19323580bb8d6cafbc2b65dd0a4ce1acb52562d1b05Insun Kang } 19423580bb8d6cafbc2b65dd0a4ce1acb52562d1b05Insun Kang // null source means deselect track. 19523580bb8d6cafbc2b65dd0a4ce1acb52562d1b05Insun Kang if (obj == NULL) { 19623580bb8d6cafbc2b65dd0a4ce1acb52562d1b05Insun Kang mPendingSeekTimeUs = kInvalidTimeUs; 19723580bb8d6cafbc2b65dd0a4ce1acb52562d1b05Insun Kang mPaused = false; 19823580bb8d6cafbc2b65dd0a4ce1acb52562d1b05Insun Kang notifyListener(); 19923580bb8d6cafbc2b65dd0a4ce1acb52562d1b05Insun Kang break; 2006655174826330afe66ef766258181ae8c11f3f6cInsun Kang } 2016655174826330afe66ef766258181ae8c11f3f6cInsun Kang mSource = static_cast<TimedTextSource*>(obj.get()); 202f9d660a5e0196240add5daf0199f128d471e592cInsun Kang status_t err = mSource->start(); 203f9d660a5e0196240add5daf0199f128d471e592cInsun Kang if (err != OK) { 204f9d660a5e0196240add5daf0199f128d471e592cInsun Kang notifyError(err); 205f9d660a5e0196240add5daf0199f128d471e592cInsun Kang break; 206f9d660a5e0196240add5daf0199f128d471e592cInsun Kang } 2076655174826330afe66ef766258181ae8c11f3f6cInsun Kang Parcel parcel; 208f9d660a5e0196240add5daf0199f128d471e592cInsun Kang err = mSource->extractGlobalDescriptions(&parcel); 209f9d660a5e0196240add5daf0199f128d471e592cInsun Kang if (err != OK) { 210f9d660a5e0196240add5daf0199f128d471e592cInsun Kang notifyError(err); 211f9d660a5e0196240add5daf0199f128d471e592cInsun Kang break; 2126655174826330afe66ef766258181ae8c11f3f6cInsun Kang } 213f9d660a5e0196240add5daf0199f128d471e592cInsun Kang notifyListener(&parcel); 2146655174826330afe66ef766258181ae8c11f3f6cInsun Kang break; 2153b573f7bf1c5736d500e39013b8d32478a1429e6Gloria Wang } 2167a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang } 2177a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang} 2187a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang 2196655174826330afe66ef766258181ae8c11f3f6cInsun Kangvoid TimedTextPlayer::doSeekAndRead(int64_t seekTimeUs) { 2206655174826330afe66ef766258181ae8c11f3f6cInsun Kang MediaSource::ReadOptions options; 2216655174826330afe66ef766258181ae8c11f3f6cInsun Kang options.setSeekTo(seekTimeUs, MediaSource::ReadOptions::SEEK_PREVIOUS_SYNC); 2226655174826330afe66ef766258181ae8c11f3f6cInsun Kang doRead(&options); 2237a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang} 2247a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang 2256655174826330afe66ef766258181ae8c11f3f6cInsun Kangvoid TimedTextPlayer::doRead(MediaSource::ReadOptions* options) { 226bae00e73c6d1d87cc5fd42b50f95d1d9572162eaInsun Kang int64_t startTimeUs = 0; 227bae00e73c6d1d87cc5fd42b50f95d1d9572162eaInsun Kang int64_t endTimeUs = 0; 2286655174826330afe66ef766258181ae8c11f3f6cInsun Kang sp<ParcelEvent> parcelEvent = new ParcelEvent(); 22923580bb8d6cafbc2b65dd0a4ce1acb52562d1b05Insun Kang CHECK(mSource != NULL); 230bae00e73c6d1d87cc5fd42b50f95d1d9572162eaInsun Kang status_t err = mSource->read(&startTimeUs, &endTimeUs, 231bae00e73c6d1d87cc5fd42b50f95d1d9572162eaInsun Kang &(parcelEvent->parcel), options); 232bae00e73c6d1d87cc5fd42b50f95d1d9572162eaInsun Kang if (err == WOULD_BLOCK) { 2333b963c60693c10276f5ebf5e0abb95f6be78070fInsun Kang sp<AMessage> msg = new AMessage(kWhatRetryRead, id()); 2344e1c91dd07fad96ee2387eda510c6da45e5dff0aInsun Kang if (options != NULL) { 235bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kang int64_t seekTimeUs = kInvalidTimeUs; 236bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kang MediaSource::ReadOptions::SeekMode seekMode = 237bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kang MediaSource::ReadOptions::SEEK_PREVIOUS_SYNC; 2384e1c91dd07fad96ee2387eda510c6da45e5dff0aInsun Kang CHECK(options->getSeekTo(&seekTimeUs, &seekMode)); 2394e1c91dd07fad96ee2387eda510c6da45e5dff0aInsun Kang msg->setInt64("seekTimeUs", seekTimeUs); 2404e1c91dd07fad96ee2387eda510c6da45e5dff0aInsun Kang msg->setInt32("seekMode", seekMode); 2414e1c91dd07fad96ee2387eda510c6da45e5dff0aInsun Kang } 242bb6bc8491fe819f96e1902e56694715cb110ce94Insun Kang msg->setInt32("generation", mSendSubtitleGeneration); 2434e1c91dd07fad96ee2387eda510c6da45e5dff0aInsun Kang msg->post(kWaitTimeUsToRetryRead); 244bae00e73c6d1d87cc5fd42b50f95d1d9572162eaInsun Kang return; 245bae00e73c6d1d87cc5fd42b50f95d1d9572162eaInsun Kang } else if (err != OK) { 246f9d660a5e0196240add5daf0199f128d471e592cInsun Kang notifyError(err); 247bae00e73c6d1d87cc5fd42b50f95d1d9572162eaInsun Kang return; 248bae00e73c6d1d87cc5fd42b50f95d1d9572162eaInsun Kang } 249bae00e73c6d1d87cc5fd42b50f95d1d9572162eaInsun Kang 250bae00e73c6d1d87cc5fd42b50f95d1d9572162eaInsun Kang postTextEvent(parcelEvent, startTimeUs); 251bae00e73c6d1d87cc5fd42b50f95d1d9572162eaInsun Kang if (endTimeUs > 0) { 252bae00e73c6d1d87cc5fd42b50f95d1d9572162eaInsun Kang CHECK_GE(endTimeUs, startTimeUs); 253bae00e73c6d1d87cc5fd42b50f95d1d9572162eaInsun Kang // send an empty timed text to clear the subtitle when it reaches to the 254bae00e73c6d1d87cc5fd42b50f95d1d9572162eaInsun Kang // end time. 255bae00e73c6d1d87cc5fd42b50f95d1d9572162eaInsun Kang postTextEvent(NULL, endTimeUs); 256f9d660a5e0196240add5daf0199f128d471e592cInsun Kang } 2577a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang} 2587a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang 2596655174826330afe66ef766258181ae8c11f3f6cInsun Kangvoid TimedTextPlayer::postTextEvent(const sp<ParcelEvent>& parcel, int64_t timeUs) { 2602f0632f12cd02b0350918720443c888b48f4417bInsun Kang int64_t delayUs = delayUsFromCurrentTime(timeUs); 2616472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang sp<AMessage> msg = new AMessage(kWhatSendSubtitle, id()); 2626472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang msg->setInt32("generation", mSendSubtitleGeneration); 2636472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang if (parcel != NULL) { 2646472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang msg->setObject("subtitle", parcel); 2657a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang } 2666472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang msg->setInt64("fireTimeUs", timeUs); 2676472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang msg->post(delayUs); 2687a1e3e81264189e23a1db2b174e1b5a5d4c7d1c3Gloria Wang} 2693b573f7bf1c5736d500e39013b8d32478a1429e6Gloria Wang 2702f0632f12cd02b0350918720443c888b48f4417bInsun Kangint64_t TimedTextPlayer::delayUsFromCurrentTime(int64_t fireTimeUs) { 2712f0632f12cd02b0350918720443c888b48f4417bInsun Kang sp<MediaPlayerBase> listener = mListener.promote(); 2722f0632f12cd02b0350918720443c888b48f4417bInsun Kang if (listener == NULL) { 2732f0632f12cd02b0350918720443c888b48f4417bInsun Kang // TODO: it may be better to return kInvalidTimeUs 2743478eaa23c19dbbe473be70e8f3cc0c904d2465cJohn Grossman ALOGE("%s: Listener is NULL. (fireTimeUs = %lld)", 2753478eaa23c19dbbe473be70e8f3cc0c904d2465cJohn Grossman __FUNCTION__, fireTimeUs); 2762f0632f12cd02b0350918720443c888b48f4417bInsun Kang return 0; 2772f0632f12cd02b0350918720443c888b48f4417bInsun Kang } 2782f0632f12cd02b0350918720443c888b48f4417bInsun Kang int32_t positionMs = 0; 2792f0632f12cd02b0350918720443c888b48f4417bInsun Kang listener->getCurrentPosition(&positionMs); 2802f0632f12cd02b0350918720443c888b48f4417bInsun Kang int64_t positionUs = positionMs * 1000ll; 2812f0632f12cd02b0350918720443c888b48f4417bInsun Kang 2822f0632f12cd02b0350918720443c888b48f4417bInsun Kang if (fireTimeUs <= positionUs + kAdjustmentProcessingTimeUs) { 2832f0632f12cd02b0350918720443c888b48f4417bInsun Kang return 0; 2842f0632f12cd02b0350918720443c888b48f4417bInsun Kang } else { 2852f0632f12cd02b0350918720443c888b48f4417bInsun Kang int64_t delayUs = fireTimeUs - positionUs - kAdjustmentProcessingTimeUs; 2862f0632f12cd02b0350918720443c888b48f4417bInsun Kang if (delayUs > kMaxDelayUs) { 2872f0632f12cd02b0350918720443c888b48f4417bInsun Kang return kMaxDelayUs; 2882f0632f12cd02b0350918720443c888b48f4417bInsun Kang } 2892f0632f12cd02b0350918720443c888b48f4417bInsun Kang return delayUs; 2902f0632f12cd02b0350918720443c888b48f4417bInsun Kang } 2912f0632f12cd02b0350918720443c888b48f4417bInsun Kang} 2922f0632f12cd02b0350918720443c888b48f4417bInsun Kang 293f9d660a5e0196240add5daf0199f128d471e592cInsun Kangvoid TimedTextPlayer::notifyError(int error) { 294f9d660a5e0196240add5daf0199f128d471e592cInsun Kang sp<MediaPlayerBase> listener = mListener.promote(); 2956472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang if (listener == NULL) { 2966472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang ALOGE("%s(error=%d): Listener is NULL.", __FUNCTION__, error); 2976472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang return; 298f9d660a5e0196240add5daf0199f128d471e592cInsun Kang } 2996472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang listener->sendEvent(MEDIA_INFO, MEDIA_INFO_TIMED_TEXT_ERROR, error); 300f9d660a5e0196240add5daf0199f128d471e592cInsun Kang} 301f9d660a5e0196240add5daf0199f128d471e592cInsun Kang 302f9d660a5e0196240add5daf0199f128d471e592cInsun Kangvoid TimedTextPlayer::notifyListener(const Parcel *parcel) { 3036655174826330afe66ef766258181ae8c11f3f6cInsun Kang sp<MediaPlayerBase> listener = mListener.promote(); 3046472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang if (listener == NULL) { 3056472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang ALOGE("%s: Listener is NULL.", __FUNCTION__); 3066472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang return; 3076472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang } 3086472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang if (parcel != NULL && (parcel->dataSize() > 0)) { 3096472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang listener->sendEvent(MEDIA_TIMED_TEXT, 0, 0, parcel); 3106472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang } else { // send an empty timed text to clear the screen 3116472badc497a9e748411f8c8c9ed5d83ef335a85Insun Kang listener->sendEvent(MEDIA_TIMED_TEXT); 3123b573f7bf1c5736d500e39013b8d32478a1429e6Gloria Wang } 3133b573f7bf1c5736d500e39013b8d32478a1429e6Gloria Wang} 3143b573f7bf1c5736d500e39013b8d32478a1429e6Gloria Wang 3156655174826330afe66ef766258181ae8c11f3f6cInsun Kang} // namespace android 316