AudioTrack.cpp revision ef02827d4c3b9c0601eddc9c348fc2ea866420a2
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* //device/extlibs/pv/android/AudioTrack.cpp 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** Copyright 2007, The Android Open Source Project 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** Licensed under the Apache License, Version 2.0 (the "License"); 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** you may not use this file except in compliance with the License. 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** You may obtain a copy of the License at 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** http://www.apache.org/licenses/LICENSE-2.0 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** Unless required by applicable law or agreed to in writing, software 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** distributed under the License is distributed on an "AS IS" BASIS, 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** See the License for the specific language governing permissions and 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** limitations under the License. 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project*/ 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project//#define LOG_NDEBUG 0 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#define LOG_TAG "AudioTrack" 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <stdint.h> 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <sys/types.h> 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <limits.h> 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <sched.h> 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <sys/resource.h> 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <private/media/AudioTrackShared.h> 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <media/AudioSystem.h> 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <media/AudioTrack.h> 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <utils/Log.h> 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <utils/MemoryDealer.h> 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <utils/Parcel.h> 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <utils/IPCThreadState.h> 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <utils/Timers.h> 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <cutils/atomic.h> 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#define LIKELY( exp ) (__builtin_expect( (exp) != 0, true )) 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false )) 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectnamespace android { 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// --------------------------------------------------------------------------- 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source ProjectAudioTrack::AudioTrack() 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project : mStatus(NO_INIT) 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source ProjectAudioTrack::AudioTrack( 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int streamType, 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t sampleRate, 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int format, 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int channelCount, 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int frameCount, 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t flags, 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project callback_t cbf, 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void* user, 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int notificationFrames) 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project : mStatus(NO_INIT) 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStatus = set(streamType, sampleRate, format, channelCount, 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frameCount, flags, cbf, user, notificationFrames, 0); 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source ProjectAudioTrack::AudioTrack( 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int streamType, 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t sampleRate, 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int format, 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int channelCount, 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const sp<IMemory>& sharedBuffer, 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t flags, 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project callback_t cbf, 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void* user, 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int notificationFrames) 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project : mStatus(NO_INIT) 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStatus = set(streamType, sampleRate, format, channelCount, 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, flags, cbf, user, notificationFrames, sharedBuffer); 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source ProjectAudioTrack::~AudioTrack() 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV_IF(mSharedBuffer != 0, "Destructor sharedBuffer: %p", mSharedBuffer->pointer()); 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStatus == NO_ERROR) { 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure that callback function exits in the case where 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // it is looping on buffer full condition in obtainBuffer(). 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Otherwise the callback thread will never exit. 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project stop(); 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAudioTrackThread != 0) { 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioTrackThread->requestExitAndWait(); 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioTrackThread.clear(); 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioTrack.clear(); 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project IPCThreadState::self()->flushCommands(); 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatus_t AudioTrack::set( 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int streamType, 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t sampleRate, 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int format, 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int channelCount, 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int frameCount, 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t flags, 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project callback_t cbf, 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void* user, 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int notificationFrames, 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const sp<IMemory>& sharedBuffer, 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bool threadCanCallJava) 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV_IF(sharedBuffer != 0, "sharedBuffer: %p, size: %d", sharedBuffer->pointer(), sharedBuffer->size()); 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 119ef02827d4c3b9c0601eddc9c348fc2ea866420a2Eric Laurent if (mAudioTrack != 0) { 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGE("Track already in use"); 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_OPERATION; 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const sp<IAudioFlinger>& audioFlinger = AudioSystem::get_audio_flinger(); 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (audioFlinger == 0) { 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGE("Could not get audioflinger"); 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NO_INIT; 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int afSampleRate; 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (AudioSystem::getOutputSamplingRate(&afSampleRate, streamType) != NO_ERROR) { 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NO_INIT; 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int afFrameCount; 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (AudioSystem::getOutputFrameCount(&afFrameCount, streamType) != NO_ERROR) { 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NO_INIT; 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t afLatency; 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (AudioSystem::getOutputLatency(&afLatency, streamType) != NO_ERROR) { 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NO_INIT; 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // handle default values first. 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (streamType == AudioSystem::DEFAULT) { 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project streamType = AudioSystem::MUSIC; 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sampleRate == 0) { 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sampleRate = afSampleRate; 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // these below should probably come from the audioFlinger too... 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (format == 0) { 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project format = AudioSystem::PCM_16_BIT; 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (channelCount == 0) { 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project channelCount = 2; 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // validate parameters 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (((format != AudioSystem::PCM_8_BIT) || sharedBuffer != 0) && 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (format != AudioSystem::PCM_16_BIT)) { 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGE("Invalid format"); 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return BAD_VALUE; 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (channelCount != 1 && channelCount != 2) { 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGE("Invalid channel number"); 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return BAD_VALUE; 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Ensure that buffer depth covers at least audio hardware latency 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t minBufCount = afLatency / ((1000 * afFrameCount)/afSampleRate); 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (minBufCount < 2) minBufCount = 2; 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // When playing from shared buffer, playback will start even if last audioflinger 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // block is partly filled. 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sharedBuffer != 0 && minBufCount > 1) { 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project minBufCount--; 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int minFrameCount = (afFrameCount*sampleRate*minBufCount)/afSampleRate; 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sharedBuffer == 0) { 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frameCount == 0) { 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frameCount = minFrameCount; 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (notificationFrames == 0) { 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project notificationFrames = frameCount/2; 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure that application is notified with sufficient margin 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // before underrun 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (notificationFrames > frameCount/2) { 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project notificationFrames = frameCount/2; 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Ensure that buffer alignment matches channelcount 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (((uint32_t)sharedBuffer->pointer() & (channelCount | 1)) != 0) { 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGE("Invalid buffer alignement: address %p, channelCount %d", sharedBuffer->pointer(), channelCount); 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return BAD_VALUE; 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frameCount = sharedBuffer->size()/channelCount/sizeof(int16_t); 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frameCount < minFrameCount) { 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGE("Invalid buffer size: minFrameCount %d, frameCount %d", minFrameCount, frameCount); 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return BAD_VALUE; 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // create the track 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project status_t status; 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<IAudioTrack> track = audioFlinger->createTrack(getpid(), 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project streamType, sampleRate, format, channelCount, frameCount, flags, sharedBuffer, &status); 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (track == 0) { 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGE("AudioFlinger could not create track, status: %d", status); 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return status; 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<IMemory> cblk = track->getCblk(); 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (cblk == 0) { 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGE("Could not get control block"); 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NO_INIT; 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (cbf != 0) { 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioTrackThread = new AudioTrackThread(*this, threadCanCallJava); 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAudioTrackThread == 0) { 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGE("Could not create callback thread"); 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NO_INIT; 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStatus = NO_ERROR; 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioTrack = track; 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCblkMemory = cblk; 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCblk = static_cast<audio_track_cblk_t*>(cblk->pointer()); 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCblk->out = 1; 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update buffer size in case it has been limited by AudioFlinger during track creation 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFrameCount = mCblk->frameCount; 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sharedBuffer == 0) { 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCblk->buffers = (char*)mCblk + sizeof(audio_track_cblk_t); 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCblk->buffers = sharedBuffer->pointer(); 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Force buffer full condition as data is already present in shared memory 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCblk->stepUser(mFrameCount); 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCblk->volume[0] = mCblk->volume[1] = 0x1000; 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVolume[LEFT] = 1.0f; 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVolume[RIGHT] = 1.0f; 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSampleRate = sampleRate; 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStreamType = streamType; 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFormat = format; 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mChannelCount = channelCount; 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSharedBuffer = sharedBuffer; 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMuted = false; 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActive = 0; 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCbf = cbf; 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNotificationFrames = notificationFrames; 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRemainingFrames = notificationFrames; 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mUserData = user; 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLatency = afLatency + (1000*mFrameCount) / mSampleRate; 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLoopCount = 0; 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMarkerPosition = 0; 2604a5c1a7e84a250eafe0e3a12d859c45747520d55Jean-Michel Trivi mMarkerReached = false; 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNewPosition = 0; 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mUpdatePeriod = 0; 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NO_ERROR; 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatus_t AudioTrack::initCheck() const 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStatus; 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// ------------------------------------------------------------------------- 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectuint32_t AudioTrack::latency() const 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLatency; 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectint AudioTrack::streamType() const 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStreamType; 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectuint32_t AudioTrack::sampleRate() const 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSampleRate; 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectint AudioTrack::format() const 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFormat; 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectint AudioTrack::channelCount() const 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mChannelCount; 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectuint32_t AudioTrack::frameCount() const 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFrameCount; 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectint AudioTrack::frameSize() const 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return channelCount()*((format() == AudioSystem::PCM_8_BIT) ? sizeof(uint8_t) : sizeof(int16_t)); 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectsp<IMemory>& AudioTrack::sharedBuffer() 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSharedBuffer; 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// ------------------------------------------------------------------------- 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid AudioTrack::start() 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<AudioTrackThread> t = mAudioTrackThread; 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("start %p", this); 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (t != 0) { 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (t->exitPending()) { 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (t->requestExitAndWait() == WOULD_BLOCK) { 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGE("AudioTrack::start called from thread"); 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project t->mLock.lock(); 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (android_atomic_or(1, &mActive) == 0) { 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNewPosition = mCblk->server + mUpdatePeriod; 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCblk->bufferTimeoutMs = MAX_STARTUP_TIMEOUT_MS; 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCblk->waitTimeMs = 0; 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (t != 0) { 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project t->run("AudioTrackThread", THREAD_PRIORITY_AUDIO_CLIENT); 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setpriority(PRIO_PROCESS, 0, THREAD_PRIORITY_AUDIO_CLIENT); 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioTrack->start(); 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (t != 0) { 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project t->mLock.unlock(); 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid AudioTrack::stop() 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<AudioTrackThread> t = mAudioTrackThread; 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("stop %p", this); 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (t != 0) { 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project t->mLock.lock(); 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (android_atomic_and(~1, &mActive) == 1) { 358ef02827d4c3b9c0601eddc9c348fc2ea866420a2Eric Laurent mCblk->cv.signal(); 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioTrack->stop(); 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Cancel loops (If we are in the middle of a loop, playback 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // would not stop until loopCount reaches 0). 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setLoop(0, 0, 0); 3634a5c1a7e84a250eafe0e3a12d859c45747520d55Jean-Michel Trivi // the playback head position will reset to 0, so if a marker is set, we need 3644a5c1a7e84a250eafe0e3a12d859c45747520d55Jean-Michel Trivi // to activate it again 3654a5c1a7e84a250eafe0e3a12d859c45747520d55Jean-Michel Trivi mMarkerReached = false; 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Force flush if a shared buffer is used otherwise audioflinger 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // will not stop before end of buffer is reached. 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSharedBuffer != 0) { 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project flush(); 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (t != 0) { 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project t->requestExit(); 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setpriority(PRIO_PROCESS, 0, ANDROID_PRIORITY_NORMAL); 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (t != 0) { 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project t->mLock.unlock(); 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectbool AudioTrack::stopped() const 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return !mActive; 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid AudioTrack::flush() 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("flush"); 3914a5c1a7e84a250eafe0e3a12d859c45747520d55Jean-Michel Trivi 3924a5c1a7e84a250eafe0e3a12d859c45747520d55Jean-Michel Trivi // clear playback marker and periodic update counter 3934a5c1a7e84a250eafe0e3a12d859c45747520d55Jean-Michel Trivi mMarkerPosition = 0; 3944a5c1a7e84a250eafe0e3a12d859c45747520d55Jean-Michel Trivi mMarkerReached = false; 3954a5c1a7e84a250eafe0e3a12d859c45747520d55Jean-Michel Trivi mUpdatePeriod = 0; 3964a5c1a7e84a250eafe0e3a12d859c45747520d55Jean-Michel Trivi 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mActive) { 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioTrack->flush(); 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Release AudioTrack callback thread in case it was waiting for new buffers 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in AudioTrack::obtainBuffer() 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCblk->cv.signal(); 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid AudioTrack::pause() 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("pause"); 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (android_atomic_and(~1, &mActive) == 1) { 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActive = 0; 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioTrack->pause(); 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid AudioTrack::mute(bool e) 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioTrack->mute(e); 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMuted = e; 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectbool AudioTrack::muted() const 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mMuted; 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid AudioTrack::setVolume(float left, float right) 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVolume[LEFT] = left; 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVolume[RIGHT] = right; 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // write must be atomic 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCblk->volumeLR = (int32_t(int16_t(left * 0x1000)) << 16) | int16_t(right * 0x1000); 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid AudioTrack::getVolume(float* left, float* right) 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *left = mVolume[LEFT]; 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *right = mVolume[RIGHT]; 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid AudioTrack::setSampleRate(int rate) 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int afSamplingRate; 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (AudioSystem::getOutputSamplingRate(&afSamplingRate, mStreamType) != NO_ERROR) { 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Resampler implementation limits input sampling rate to 2 x output sampling rate. 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (rate <= 0) rate = 1; 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (rate > afSamplingRate*2) rate = afSamplingRate*2; 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (rate > MAX_SAMPLE_RATE) rate = MAX_SAMPLE_RATE; 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 453105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mCblk->sampleRate = (uint16_t)rate; 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectuint32_t AudioTrack::getSampleRate() 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return uint32_t(mCblk->sampleRate); 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatus_t AudioTrack::setLoop(uint32_t loopStart, uint32_t loopEnd, int loopCount) 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project audio_track_cblk_t* cblk = mCblk; 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Mutex::Autolock _l(cblk->lock); 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (loopCount == 0) { 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project cblk->loopStart = UINT_MAX; 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project cblk->loopEnd = UINT_MAX; 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project cblk->loopCount = 0; 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLoopCount = 0; 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NO_ERROR; 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (loopStart >= loopEnd || 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project loopEnd - loopStart > mFrameCount) { 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGE("setLoop invalid value: loopStart %d, loopEnd %d, loopCount %d, framecount %d, user %d", loopStart, loopEnd, loopCount, mFrameCount, cblk->user); 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return BAD_VALUE; 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mSharedBuffer != 0) && (loopEnd > mFrameCount)) { 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGE("setLoop invalid value: loop markers beyond data: loopStart %d, loopEnd %d, framecount %d", 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project loopStart, loopEnd, mFrameCount); 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return BAD_VALUE; 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project cblk->loopStart = loopStart; 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project cblk->loopEnd = loopEnd; 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project cblk->loopCount = loopCount; 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLoopCount = loopCount; 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NO_ERROR; 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatus_t AudioTrack::getLoop(uint32_t *loopStart, uint32_t *loopEnd, int *loopCount) 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (loopStart != 0) { 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *loopStart = mCblk->loopStart; 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (loopEnd != 0) { 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *loopEnd = mCblk->loopEnd; 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (loopCount != 0) { 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCblk->loopCount < 0) { 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *loopCount = -1; 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *loopCount = mCblk->loopCount; 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NO_ERROR; 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatus_t AudioTrack::setMarkerPosition(uint32_t marker) 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCbf == 0) return INVALID_OPERATION; 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMarkerPosition = marker; 5204a5c1a7e84a250eafe0e3a12d859c45747520d55Jean-Michel Trivi mMarkerReached = false; 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NO_ERROR; 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatus_t AudioTrack::getMarkerPosition(uint32_t *marker) 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (marker == 0) return BAD_VALUE; 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *marker = mMarkerPosition; 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NO_ERROR; 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatus_t AudioTrack::setPositionUpdatePeriod(uint32_t updatePeriod) 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCbf == 0) return INVALID_OPERATION; 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t curPosition; 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getPosition(&curPosition); 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNewPosition = curPosition + updatePeriod; 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mUpdatePeriod = updatePeriod; 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NO_ERROR; 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatus_t AudioTrack::getPositionUpdatePeriod(uint32_t *updatePeriod) 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (updatePeriod == 0) return BAD_VALUE; 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *updatePeriod = mUpdatePeriod; 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NO_ERROR; 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatus_t AudioTrack::setPosition(uint32_t position) 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Mutex::Autolock _l(mCblk->lock); 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!stopped()) return INVALID_OPERATION; 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position > mCblk->user) return BAD_VALUE; 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCblk->server = position; 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCblk->forceReady = 1; 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NO_ERROR; 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatus_t AudioTrack::getPosition(uint32_t *position) 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position == 0) return BAD_VALUE; 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *position = mCblk->server; 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NO_ERROR; 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatus_t AudioTrack::reload() 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!stopped()) return INVALID_OPERATION; 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project flush(); 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCblk->stepUser(mFrameCount); 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NO_ERROR; 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// ------------------------------------------------------------------------- 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatus_t AudioTrack::obtainBuffer(Buffer* audioBuffer, int32_t waitCount) 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int active; 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int timeout = 0; 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project status_t result; 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project audio_track_cblk_t* cblk = mCblk; 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t framesReq = audioBuffer->frameCount; 598ef02827d4c3b9c0601eddc9c348fc2ea866420a2Eric Laurent uint32_t waitTimeMs = (waitCount < 0) ? cblk->bufferTimeoutMs : WAIT_PERIOD_MS; 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project audioBuffer->frameCount = 0; 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project audioBuffer->size = 0; 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t framesAvail = cblk->framesAvailable(); 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (framesAvail == 0) { 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Mutex::Autolock _l(cblk->lock); 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project goto start_loop_here; 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (framesAvail == 0) { 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project active = mActive; 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (UNLIKELY(!active)) { 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("Not active and NO_MORE_BUFFERS"); 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NO_MORE_BUFFERS; 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (UNLIKELY(!waitCount)) 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return WOULD_BLOCK; 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project timeout = 0; 617ef02827d4c3b9c0601eddc9c348fc2ea866420a2Eric Laurent result = cblk->cv.waitRelative(cblk->lock, milliseconds(waitTimeMs)); 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (__builtin_expect(result!=NO_ERROR, false)) { 619ef02827d4c3b9c0601eddc9c348fc2ea866420a2Eric Laurent cblk->waitTimeMs += waitTimeMs; 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (cblk->waitTimeMs >= cblk->bufferTimeoutMs) { 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // timing out when a loop has been set and we have already written upto loop end 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is a normal condition: no need to wake AudioFlinger up. 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (cblk->user < cblk->loopEnd) { 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGW( "obtainBuffer timed out (is the CPU pegged?) %p " 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "user=%08x, server=%08x", this, cblk->user, cblk->server); 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //unlock cblk mutex before calling mAudioTrack->start() (see issue #1617140) 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project cblk->lock.unlock(); 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioTrack->start(); 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project cblk->lock.lock(); 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project timeout = 1; 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project cblk->waitTimeMs = 0; 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (--waitCount == 0) { 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return TIMED_OUT; 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // read the server count again 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start_loop_here: 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project framesAvail = cblk->framesAvailable_l(); 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project cblk->waitTimeMs = 0; 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (framesReq > framesAvail) { 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project framesReq = framesAvail; 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t u = cblk->user; 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t bufferEnd = cblk->userBase + cblk->frameCount; 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (u + framesReq > bufferEnd) { 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project framesReq = bufferEnd - u; 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGW_IF(timeout, 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "*** SERIOUS WARNING *** obtainBuffer() timed out " 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "but didn't need to be locked. We recovered, but " 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "this shouldn't happen (user=%08x, server=%08x)", cblk->user, cblk->server); 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project audioBuffer->flags = mMuted ? Buffer::MUTE : 0; 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project audioBuffer->channelCount= mChannelCount; 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project audioBuffer->format = AudioSystem::PCM_16_BIT; 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project audioBuffer->frameCount = framesReq; 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project audioBuffer->size = framesReq*mChannelCount*sizeof(int16_t); 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project audioBuffer->raw = (int8_t *)cblk->buffer(u); 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project active = mActive; 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return active ? status_t(NO_ERROR) : status_t(STOPPED); 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid AudioTrack::releaseBuffer(Buffer* audioBuffer) 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project audio_track_cblk_t* cblk = mCblk; 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project cblk->stepUser(audioBuffer->frameCount); 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// ------------------------------------------------------------------------- 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectssize_t AudioTrack::write(const void* buffer, size_t userSize) 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSharedBuffer != 0) return INVALID_OPERATION; 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ssize_t(userSize) < 0) { 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // sanity-check. user is most-likely passing an error code. 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGE("AudioTrack::write(buffer=%p, size=%u (%d)", 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project buffer, userSize, userSize); 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return BAD_VALUE; 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("write %p: %d bytes, mActive=%d", this, userSize, mActive); 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ssize_t written = 0; 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const int8_t *src = (const int8_t *)buffer; 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Buffer audioBuffer; 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project do { 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project audioBuffer.frameCount = userSize/mChannelCount; 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFormat == AudioSystem::PCM_16_BIT) { 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project audioBuffer.frameCount >>= 1; 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Calling obtainBuffer() with a negative wait count causes 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // an (almost) infinite wait time. 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project status_t err = obtainBuffer(&audioBuffer, -1); 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (err < 0) { 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // out of buffers, return #bytes written 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (err == status_t(NO_MORE_BUFFERS)) 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ssize_t(err); 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size_t toWrite; 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFormat == AudioSystem::PCM_8_BIT) { 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Divide capacity by 2 to take expansion into account 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project toWrite = audioBuffer.size>>1; 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 8 to 16 bit conversion 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = toWrite; 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int16_t *dst = (int16_t *)(audioBuffer.i8); 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while(count--) { 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *dst++ = (int16_t)(*src++^0x80) << 8; 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }else { 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project toWrite = audioBuffer.size; 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project memcpy(audioBuffer.i8, src, toWrite); 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project src += toWrite; 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project userSize -= toWrite; 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project written += toWrite; 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project releaseBuffer(&audioBuffer); 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } while (userSize); 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return written; 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// ------------------------------------------------------------------------- 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectbool AudioTrack::processAudioBuffer(const sp<AudioTrackThread>& thread) 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Buffer audioBuffer; 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t frames; 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size_t writtenSize; 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Manage underrun callback 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActive && (mCblk->framesReady() == 0)) { 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGV("Underrun user: %x, server: %x, flowControlFlag %d", mCblk->user, mCblk->server, mCblk->flowControlFlag); 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCblk->flowControlFlag == 0) { 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCbf(EVENT_UNDERRUN, mUserData, 0); 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCblk->server == mCblk->frameCount) { 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCbf(EVENT_BUFFER_END, mUserData, 0); 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCblk->flowControlFlag = 1; 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSharedBuffer != 0) return false; 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Manage loop end callback 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (mLoopCount > mCblk->loopCount) { 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int loopCount = -1; 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLoopCount--; 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mLoopCount >= 0) loopCount = mLoopCount; 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCbf(EVENT_LOOP_END, mUserData, (void *)&loopCount); 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Manage marker callback 7694a5c1a7e84a250eafe0e3a12d859c45747520d55Jean-Michel Trivi if (!mMarkerReached && (mMarkerPosition > 0)) { 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCblk->server >= mMarkerPosition) { 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCbf(EVENT_MARKER, mUserData, (void *)&mMarkerPosition); 7724a5c1a7e84a250eafe0e3a12d859c45747520d55Jean-Michel Trivi mMarkerReached = true; 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Manage new position callback 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if(mUpdatePeriod > 0) { 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (mCblk->server >= mNewPosition) { 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCbf(EVENT_NEW_POS, mUserData, (void *)&mNewPosition); 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNewPosition += mUpdatePeriod; 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If Shared buffer is used, no data is requested from client. 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSharedBuffer != 0) { 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frames = 0; 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frames = mRemainingFrames; 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project do { 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project audioBuffer.frameCount = frames; 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Calling obtainBuffer() with a wait count of 1 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // limits wait time to WAIT_PERIOD_MS. This prevents from being 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // stuck here not being able to handle timed events (position, markers, loops). 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project status_t err = obtainBuffer(&audioBuffer, 1); 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (err < NO_ERROR) { 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (err != TIMED_OUT) { 801ef02827d4c3b9c0601eddc9c348fc2ea866420a2Eric Laurent LOGE_IF(err != status_t(NO_MORE_BUFFERS), "Error obtaining an audio buffer, giving up."); 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (err == status_t(STOPPED)) return false; 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Divide buffer size by 2 to take into account the expansion 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // due to 8 to 16 bit conversion: the callback must fill only half 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // of the destination buffer 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFormat == AudioSystem::PCM_8_BIT) { 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project audioBuffer.size >>= 1; 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size_t reqSize = audioBuffer.size; 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCbf(EVENT_MORE_DATA, mUserData, &audioBuffer); 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project writtenSize = audioBuffer.size; 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Sanity check on returned size 8204df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project if (ssize_t(writtenSize) <= 0) { 8214df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project // The callback is done filling buffers 8224df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project // Keep this thread going to handle timed events and 8234df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project // still try to get more data in intervals of WAIT_PERIOD_MS 8244df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project // but don't just loop and block the CPU, so wait 8254df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project usleep(WAIT_PERIOD_MS*1000); 8264df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project break; 8274df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project } 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (writtenSize > reqSize) writtenSize = reqSize; 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFormat == AudioSystem::PCM_8_BIT) { 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 8 to 16 bit conversion 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const int8_t *src = audioBuffer.i8 + writtenSize-1; 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = writtenSize; 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int16_t *dst = audioBuffer.i16 + writtenSize-1; 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while(count--) { 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *dst-- = (int16_t)(*src--^0x80) << 8; 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project writtenSize <<= 1; 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project audioBuffer.size = writtenSize; 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project audioBuffer.frameCount = writtenSize/mChannelCount/sizeof(int16_t); 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frames -= audioBuffer.frameCount; 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project releaseBuffer(&audioBuffer); 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (frames); 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frames == 0) { 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRemainingFrames = mNotificationFrames; 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRemainingFrames = frames; 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatus_t AudioTrack::dump(int fd, const Vector<String16>& args) const 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const size_t SIZE = 256; 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char buffer[SIZE]; 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String8 result; 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project result.append(" AudioTrack::dump\n"); 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project snprintf(buffer, 255, " stream type(%d), left - right volume(%f, %f)\n", mStreamType, mVolume[0], mVolume[1]); 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project result.append(buffer); 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project snprintf(buffer, 255, " format(%d), channel count(%d), frame count(%d)\n", mFormat, mChannelCount, mFrameCount); 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project result.append(buffer); 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project snprintf(buffer, 255, " sample rate(%d), status(%d), muted(%d)\n", mSampleRate, mStatus, mMuted); 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project result.append(buffer); 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project snprintf(buffer, 255, " active(%d), latency (%d)\n", mActive, mLatency); 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project result.append(buffer); 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ::write(fd, result.string(), result.size()); 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NO_ERROR; 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// ========================================================================= 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source ProjectAudioTrack::AudioTrackThread::AudioTrackThread(AudioTrack& receiver, bool bCanCallJava) 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project : Thread(bCanCallJava), mReceiver(receiver) 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectbool AudioTrack::AudioTrackThread::threadLoop() 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mReceiver.processAudioBuffer(this); 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatus_t AudioTrack::AudioTrackThread::readyToRun() 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NO_ERROR; 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid AudioTrack::AudioTrackThread::onFirstRef() 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// ========================================================================= 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectaudio_track_cblk_t::audio_track_cblk_t() 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project : user(0), server(0), userBase(0), serverBase(0), buffers(0), frameCount(0), 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project loopStart(UINT_MAX), loopEnd(UINT_MAX), loopCount(0), volumeLR(0), flowControlFlag(1), forceReady(0) 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectuint32_t audio_track_cblk_t::stepUser(uint32_t frameCount) 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t u = this->user; 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project u += frameCount; 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Ensure that user is never ahead of server for AudioRecord 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (out) { 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If stepServer() has been called once, switch to normal obtainBuffer() timeout period 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bufferTimeoutMs == MAX_STARTUP_TIMEOUT_MS-1) { 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bufferTimeoutMs = MAX_RUN_TIMEOUT_MS; 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (u > this->server) { 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGW("stepServer occured after track reset"); 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project u = this->server; 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (u >= userBase + this->frameCount) { 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project userBase += this->frameCount; 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this->user = u; 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Clear flow control error condition as new data has been written/read to/from buffer. 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project flowControlFlag = 0; 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return u; 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectbool audio_track_cblk_t::stepServer(uint32_t frameCount) 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the code below simulates lock-with-timeout 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we MUST do this to protect the AudioFlinger server 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // as this lock is shared with the client. 9399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project status_t err; 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project err = lock.tryLock(); 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (err == -EBUSY) { // just wait a bit 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project usleep(1000); 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project err = lock.tryLock(); 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (err != NO_ERROR) { 9479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // probably, the client just died. 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t s = this->server; 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project s += frameCount; 9549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (out) { 9559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Mark that we have read the first buffer so that next time stepUser() is called 9569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we switch to normal obtainBuffer() timeout period 9579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bufferTimeoutMs == MAX_STARTUP_TIMEOUT_MS) { 9589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bufferTimeoutMs = MAX_RUN_TIMEOUT_MS - 1; 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // It is possible that we receive a flush() 9619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // while the mixer is processing a block: in this case, 9629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // stepServer() is called After the flush() has reset u & s and 9639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we have s > u 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (s > this->user) { 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGW("stepServer occured after track reset"); 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project s = this->user; 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (s >= loopEnd) { 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGW_IF(s > loopEnd, "stepServer: s %u > loopEnd %u", s, loopEnd); 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project s = loopStart; 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (--loopCount == 0) { 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project loopEnd = UINT_MAX; 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project loopStart = UINT_MAX; 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (s >= serverBase + this->frameCount) { 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project serverBase += this->frameCount; 9809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this->server = s; 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project cv.signal(); 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lock.unlock(); 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid* audio_track_cblk_t::buffer(uint32_t offset) const 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 9919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int16_t *)this->buffers + (offset-userBase)*this->channels; 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectuint32_t audio_track_cblk_t::framesAvailable() 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Mutex::Autolock _l(lock); 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return framesAvailable_l(); 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectuint32_t audio_track_cblk_t::framesAvailable_l() 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t u = this->user; 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t s = this->server; 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (out) { 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t limit = (s < loopStart) ? s : loopStart; 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return limit + frameCount - u; 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return frameCount + u - s; 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectuint32_t audio_track_cblk_t::framesReady() 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t u = this->user; 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t s = this->server; 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (out) { 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (u < loopEnd) { 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return u - s; 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Mutex::Autolock _l(lock); 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (loopCount >= 0) { 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (loopEnd - loopStart)*loopCount + u - s; 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return UINT_MAX; 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return s - u; 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// ------------------------------------------------------------------------- 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; // namespace android 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1038