AudioPlayer.cpp revision c0dfc5b02d4179769bbdd25c10d430576ec09568
115a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root/* 215a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * Copyright (C) 2009 The Android Open Source Project 315a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * 415a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * Licensed under the Apache License, Version 2.0 (the "License"); 515a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * you may not use this file except in compliance with the License. 615a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * You may obtain a copy of the License at 715a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * 815a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * http://www.apache.org/licenses/LICENSE-2.0 915a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * 1015a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * Unless required by applicable law or agreed to in writing, software 1115a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * distributed under the License is distributed on an "AS IS" BASIS, 1215a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1315a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * See the License for the specific language governing permissions and 1415a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root * limitations under the License. 1515a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root */ 1615a4d2ffd04dc6c70f2cd17dae12ac6bc14c69abKenny Root 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project//#define LOG_NDEBUG 0 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#define LOG_TAG "AudioPlayer" 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <utils/Log.h> 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <binder/IPCThreadState.h> 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <media/AudioTrack.h> 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <media/stagefright/AudioPlayer.h> 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <media/stagefright/MediaDebug.h> 25758143ecfedbe08cc6c4fed0ad8ad7a854194ca4Svetoslav Ganov#include <media/stagefright/MediaDefs.h> 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <media/stagefright/MediaErrors.h> 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <media/stagefright/MediaSource.h> 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <media/stagefright/MetaData.h> 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "include/AwesomePlayer.h" 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32758143ecfedbe08cc6c4fed0ad8ad7a854194ca4Svetoslav Ganovnamespace android { 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source ProjectAudioPlayer::AudioPlayer( 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const sp<MediaPlayerBase::AudioSink> &audioSink, 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AwesomePlayer *observer) 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project : mAudioTrack(NULL), 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInputBuffer(NULL), 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSampleRate(0), 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLatencyUs(0), 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFrameSize(0), 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNumFramesPlayed(0), 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPositionTimeMediaUs(-1), 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPositionTimeRealUs(-1), 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSeeking(false), 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mReachedEOS(false), 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFinalStatus(OK), 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStarted(false), 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsFirstBuffer(false), 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstBufferResult(OK), 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstBuffer(NULL), 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioSink(audioSink), 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mObserver(observer) { 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5519382ac1a4e4e7c23a1346d299368763f149de9cDianne Hackborn 5619382ac1a4e4e7c23a1346d299368763f149de9cDianne HackbornAudioPlayer::~AudioPlayer() { 5719382ac1a4e4e7c23a1346d299368763f149de9cDianne Hackborn if (mStarted) { 5819382ac1a4e4e7c23a1346d299368763f149de9cDianne Hackborn reset(); 5919382ac1a4e4e7c23a1346d299368763f149de9cDianne Hackborn } 6019382ac1a4e4e7c23a1346d299368763f149de9cDianne Hackborn} 6119382ac1a4e4e7c23a1346d299368763f149de9cDianne Hackborn 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid AudioPlayer::setSource(const sp<MediaSource> &source) { 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project CHECK_EQ(mSource, NULL); 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSource = source; 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatus_t AudioPlayer::start(bool sourceAlreadyStarted) { 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project CHECK(!mStarted); 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project CHECK(mSource != NULL); 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project status_t err; 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!sourceAlreadyStarted) { 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project err = mSource->start(); 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7572c82ab9923025a91bbabb32e56bfea27bfd083bDianne Hackborn if (err != OK) { 7672c82ab9923025a91bbabb32e56bfea27bfd083bDianne Hackborn return err; 7772c82ab9923025a91bbabb32e56bfea27bfd083bDianne Hackborn } 7872c82ab9923025a91bbabb32e56bfea27bfd083bDianne Hackborn } 798df8b2b405c60cacf7a66c4e2ca078dd3d7ec7bdDianne Hackborn 808df8b2b405c60cacf7a66c4e2ca078dd3d7ec7bdDianne Hackborn // We allow an optional INFO_FORMAT_CHANGED at the very beginning 818df8b2b405c60cacf7a66c4e2ca078dd3d7ec7bdDianne Hackborn // of playback, if there is one, getFormat below will retrieve the 828df8b2b405c60cacf7a66c4e2ca078dd3d7ec7bdDianne Hackborn // updated format, if there isn't, we'll stash away the valid buffer 838df8b2b405c60cacf7a66c4e2ca078dd3d7ec7bdDianne Hackborn // of data to be used on the first audio callback. 848df8b2b405c60cacf7a66c4e2ca078dd3d7ec7bdDianne Hackborn 858df8b2b405c60cacf7a66c4e2ca078dd3d7ec7bdDianne Hackborn CHECK(mFirstBuffer == NULL); 868df8b2b405c60cacf7a66c4e2ca078dd3d7ec7bdDianne Hackborn 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project MediaSource::ReadOptions options; 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSeeking) { 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project options.setSeekTo(mSeekTimeUs); 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSeeking = false; 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstBufferResult = mSource->read(&mFirstBuffer, &options); 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstBufferResult == INFO_FORMAT_CHANGED) { 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("INFO_FORMAT_CHANGED!!!"); 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project CHECK(mFirstBuffer == NULL); 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstBufferResult = OK; 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsFirstBuffer = false; 100758143ecfedbe08cc6c4fed0ad8ad7a854194ca4Svetoslav Ganov } else { 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsFirstBuffer = true; 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<MetaData> format = mSource->getFormat(); 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char *mime; 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bool success = format->findCString(kKeyMIMEType, &mime); 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project CHECK(success); 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project CHECK(!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_RAW)); 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project success = format->findInt32(kKeySampleRate, &mSampleRate); 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project CHECK(success); 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int32_t numChannels; 1144df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project success = format->findInt32(kKeyChannelCount, &numChannels); 1154df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project CHECK(success); 1164df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 1174df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project if (mAudioSink.get() != NULL) { 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project status_t err = mAudioSink->open( 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSampleRate, numChannels, AUDIO_FORMAT_PCM_16_BIT, 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project DEFAULT_AUDIOSINK_BUFFERCOUNT, 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project &AudioPlayer::AudioSinkCallback, this); 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (err != OK) { 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstBuffer != NULL) { 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstBuffer->release(); 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstBuffer = NULL; 1264c62fc0e1e5ea9c69a12a7d1cf8b3ec8b2d114a3Dianne Hackborn } 1274c62fc0e1e5ea9c69a12a7d1cf8b3ec8b2d114a3Dianne Hackborn 128758143ecfedbe08cc6c4fed0ad8ad7a854194ca4Svetoslav Ganov if (!sourceAlreadyStarted) { 1294c62fc0e1e5ea9c69a12a7d1cf8b3ec8b2d114a3Dianne Hackborn mSource->stop(); 1304c62fc0e1e5ea9c69a12a7d1cf8b3ec8b2d114a3Dianne Hackborn } 1314c62fc0e1e5ea9c69a12a7d1cf8b3ec8b2d114a3Dianne Hackborn 1324c62fc0e1e5ea9c69a12a7d1cf8b3ec8b2d114a3Dianne Hackborn return err; 1334c62fc0e1e5ea9c69a12a7d1cf8b3ec8b2d114a3Dianne Hackborn } 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 135758143ecfedbe08cc6c4fed0ad8ad7a854194ca4Svetoslav Ganov mLatencyUs = (int64_t)mAudioSink->latency() * 1000; 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFrameSize = mAudioSink->frameSize(); 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioSink->start(); 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioTrack = new AudioTrack( 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AUDIO_STREAM_MUSIC, mSampleRate, AUDIO_FORMAT_PCM_16_BIT, 142758143ecfedbe08cc6c4fed0ad8ad7a854194ca4Svetoslav Ganov (numChannels == 2) 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ? AUDIO_CHANNEL_OUT_STEREO 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project : AUDIO_CHANNEL_OUT_MONO, 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, 0, &AudioCallback, this, 0); 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((err = mAudioTrack->initCheck()) != OK) { 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project delete mAudioTrack; 149758143ecfedbe08cc6c4fed0ad8ad7a854194ca4Svetoslav Ganov mAudioTrack = NULL; 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstBuffer != NULL) { 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstBuffer->release(); 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstBuffer = NULL; 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!sourceAlreadyStarted) { 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSource->stop(); 158758143ecfedbe08cc6c4fed0ad8ad7a854194ca4Svetoslav Ganov } 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return err; 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLatencyUs = (int64_t)mAudioTrack->latency() * 1000; 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFrameSize = mAudioTrack->frameSize(); 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioTrack->start(); 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 168758143ecfedbe08cc6c4fed0ad8ad7a854194ca4Svetoslav Ganov 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStarted = true; 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return OK; 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid AudioPlayer::pause(bool playPendingSamples) { 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project CHECK(mStarted); 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (playPendingSamples) { 178758143ecfedbe08cc6c4fed0ad8ad7a854194ca4Svetoslav Ganov if (mAudioSink.get() != NULL) { 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioSink->stop(); 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioTrack->stop(); 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAudioSink.get() != NULL) { 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioSink->pause(); 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioTrack->pause(); 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 190758143ecfedbe08cc6c4fed0ad8ad7a854194ca4Svetoslav Ganov} 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid AudioPlayer::resume() { 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project CHECK(mStarted); 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAudioSink.get() != NULL) { 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioSink->start(); 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioTrack->start(); 199 } 200} 201 202void AudioPlayer::reset() { 203 CHECK(mStarted); 204 205 if (mAudioSink.get() != NULL) { 206 mAudioSink->stop(); 207 mAudioSink->close(); 208 } else { 209 mAudioTrack->stop(); 210 211 delete mAudioTrack; 212 mAudioTrack = NULL; 213 } 214 215 // Make sure to release any buffer we hold onto so that the 216 // source is able to stop(). 217 218 if (mFirstBuffer != NULL) { 219 mFirstBuffer->release(); 220 mFirstBuffer = NULL; 221 } 222 223 if (mInputBuffer != NULL) { 224 LOGV("AudioPlayer releasing input buffer."); 225 226 mInputBuffer->release(); 227 mInputBuffer = NULL; 228 } 229 230 mSource->stop(); 231 232 // The following hack is necessary to ensure that the OMX 233 // component is completely released by the time we may try 234 // to instantiate it again. 235 wp<MediaSource> tmp = mSource; 236 mSource.clear(); 237 while (tmp.promote() != NULL) { 238 usleep(1000); 239 } 240 IPCThreadState::self()->flushCommands(); 241 242 mNumFramesPlayed = 0; 243 mPositionTimeMediaUs = -1; 244 mPositionTimeRealUs = -1; 245 mSeeking = false; 246 mReachedEOS = false; 247 mFinalStatus = OK; 248 mStarted = false; 249} 250 251// static 252void AudioPlayer::AudioCallback(int event, void *user, void *info) { 253 static_cast<AudioPlayer *>(user)->AudioCallback(event, info); 254} 255 256bool AudioPlayer::isSeeking() { 257 Mutex::Autolock autoLock(mLock); 258 return mSeeking; 259} 260 261bool AudioPlayer::reachedEOS(status_t *finalStatus) { 262 *finalStatus = OK; 263 264 Mutex::Autolock autoLock(mLock); 265 *finalStatus = mFinalStatus; 266 return mReachedEOS; 267} 268 269// static 270size_t AudioPlayer::AudioSinkCallback( 271 MediaPlayerBase::AudioSink *audioSink, 272 void *buffer, size_t size, void *cookie) { 273 AudioPlayer *me = (AudioPlayer *)cookie; 274 275 return me->fillBuffer(buffer, size); 276} 277 278void AudioPlayer::AudioCallback(int event, void *info) { 279 if (event != AudioTrack::EVENT_MORE_DATA) { 280 return; 281 } 282 283 AudioTrack::Buffer *buffer = (AudioTrack::Buffer *)info; 284 size_t numBytesWritten = fillBuffer(buffer->raw, buffer->size); 285 286 buffer->size = numBytesWritten; 287} 288 289uint32_t AudioPlayer::getNumFramesPendingPlayout() const { 290 uint32_t numFramesPlayedOut; 291 status_t err; 292 293 if (mAudioSink != NULL) { 294 err = mAudioSink->getPosition(&numFramesPlayedOut); 295 } else { 296 err = mAudioTrack->getPosition(&numFramesPlayedOut); 297 } 298 299 if (err != OK || mNumFramesPlayed < numFramesPlayedOut) { 300 return 0; 301 } 302 303 // mNumFramesPlayed is the number of frames submitted 304 // to the audio sink for playback, but not all of them 305 // may have played out by now. 306 return mNumFramesPlayed - numFramesPlayedOut; 307} 308 309size_t AudioPlayer::fillBuffer(void *data, size_t size) { 310 if (mNumFramesPlayed == 0) { 311 LOGV("AudioCallback"); 312 } 313 314 if (mReachedEOS) { 315 return 0; 316 } 317 318 bool postSeekComplete = false; 319 bool postEOS = false; 320 int64_t postEOSDelayUs = 0; 321 322 size_t size_done = 0; 323 size_t size_remaining = size; 324 while (size_remaining > 0) { 325 MediaSource::ReadOptions options; 326 327 { 328 Mutex::Autolock autoLock(mLock); 329 330 if (mSeeking) { 331 if (mIsFirstBuffer) { 332 if (mFirstBuffer != NULL) { 333 mFirstBuffer->release(); 334 mFirstBuffer = NULL; 335 } 336 mIsFirstBuffer = false; 337 } 338 339 options.setSeekTo(mSeekTimeUs); 340 341 if (mInputBuffer != NULL) { 342 mInputBuffer->release(); 343 mInputBuffer = NULL; 344 } 345 346 mSeeking = false; 347 if (mObserver) { 348 postSeekComplete = true; 349 } 350 } 351 } 352 353 if (mInputBuffer == NULL) { 354 status_t err; 355 356 if (mIsFirstBuffer) { 357 mInputBuffer = mFirstBuffer; 358 mFirstBuffer = NULL; 359 err = mFirstBufferResult; 360 361 mIsFirstBuffer = false; 362 } else { 363 err = mSource->read(&mInputBuffer, &options); 364 } 365 366 CHECK((err == OK && mInputBuffer != NULL) 367 || (err != OK && mInputBuffer == NULL)); 368 369 Mutex::Autolock autoLock(mLock); 370 371 if (err != OK) { 372 if (mObserver && !mReachedEOS) { 373 // We don't want to post EOS right away but only 374 // after all frames have actually been played out. 375 376 // These are the number of frames submitted to the 377 // AudioTrack that you haven't heard yet. 378 uint32_t numFramesPendingPlayout = 379 getNumFramesPendingPlayout(); 380 381 // These are the number of frames we're going to 382 // submit to the AudioTrack by returning from this 383 // callback. 384 uint32_t numAdditionalFrames = size_done / mFrameSize; 385 386 numFramesPendingPlayout += numAdditionalFrames; 387 388 int64_t timeToCompletionUs = 389 (1000000ll * numFramesPendingPlayout) / mSampleRate; 390 391 LOGV("total number of frames played: %lld (%lld us)", 392 (mNumFramesPlayed + numAdditionalFrames), 393 1000000ll * (mNumFramesPlayed + numAdditionalFrames) 394 / mSampleRate); 395 396 LOGV("%d frames left to play, %lld us (%.2f secs)", 397 numFramesPendingPlayout, 398 timeToCompletionUs, timeToCompletionUs / 1E6); 399 400 postEOS = true; 401 postEOSDelayUs = timeToCompletionUs + mLatencyUs; 402 } 403 404 mReachedEOS = true; 405 mFinalStatus = err; 406 break; 407 } 408 409 CHECK(mInputBuffer->meta_data()->findInt64( 410 kKeyTime, &mPositionTimeMediaUs)); 411 412 mPositionTimeRealUs = 413 ((mNumFramesPlayed + size_done / mFrameSize) * 1000000) 414 / mSampleRate; 415 416 LOGV("buffer->size() = %d, " 417 "mPositionTimeMediaUs=%.2f mPositionTimeRealUs=%.2f", 418 mInputBuffer->range_length(), 419 mPositionTimeMediaUs / 1E6, mPositionTimeRealUs / 1E6); 420 } 421 422 if (mInputBuffer->range_length() == 0) { 423 mInputBuffer->release(); 424 mInputBuffer = NULL; 425 426 continue; 427 } 428 429 size_t copy = size_remaining; 430 if (copy > mInputBuffer->range_length()) { 431 copy = mInputBuffer->range_length(); 432 } 433 434 memcpy((char *)data + size_done, 435 (const char *)mInputBuffer->data() + mInputBuffer->range_offset(), 436 copy); 437 438 mInputBuffer->set_range(mInputBuffer->range_offset() + copy, 439 mInputBuffer->range_length() - copy); 440 441 size_done += copy; 442 size_remaining -= copy; 443 } 444 445 { 446 Mutex::Autolock autoLock(mLock); 447 mNumFramesPlayed += size_done / mFrameSize; 448 } 449 450 if (postEOS) { 451 mObserver->postAudioEOS(postEOSDelayUs); 452 } 453 454 if (postSeekComplete) { 455 mObserver->postAudioSeekComplete(); 456 } 457 458 return size_done; 459} 460 461int64_t AudioPlayer::getRealTimeUs() { 462 Mutex::Autolock autoLock(mLock); 463 return getRealTimeUsLocked(); 464} 465 466int64_t AudioPlayer::getRealTimeUsLocked() const { 467 return -mLatencyUs + (mNumFramesPlayed * 1000000) / mSampleRate; 468} 469 470int64_t AudioPlayer::getMediaTimeUs() { 471 Mutex::Autolock autoLock(mLock); 472 473 if (mPositionTimeMediaUs < 0 || mPositionTimeRealUs < 0) { 474 if (mSeeking) { 475 return mSeekTimeUs; 476 } 477 478 return 0; 479 } 480 481 int64_t realTimeOffset = getRealTimeUsLocked() - mPositionTimeRealUs; 482 if (realTimeOffset < 0) { 483 realTimeOffset = 0; 484 } 485 486 return mPositionTimeMediaUs + realTimeOffset; 487} 488 489bool AudioPlayer::getMediaTimeMapping( 490 int64_t *realtime_us, int64_t *mediatime_us) { 491 Mutex::Autolock autoLock(mLock); 492 493 *realtime_us = mPositionTimeRealUs; 494 *mediatime_us = mPositionTimeMediaUs; 495 496 return mPositionTimeRealUs != -1 && mPositionTimeMediaUs != -1; 497} 498 499status_t AudioPlayer::seekTo(int64_t time_us) { 500 Mutex::Autolock autoLock(mLock); 501 502 mSeeking = true; 503 mPositionTimeRealUs = mPositionTimeMediaUs = -1; 504 mReachedEOS = false; 505 mSeekTimeUs = time_us; 506 507 if (mAudioSink != NULL) { 508 mAudioSink->flush(); 509 } else { 510 mAudioTrack->flush(); 511 } 512 513 return OK; 514} 515 516} 517