AudioTrack.cpp revision 64760240f931714858a59c1579f07264d7182ba2
189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project/* //device/extlibs/pv/android/AudioTrack.cpp 289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project** 389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project** Copyright 2007, The Android Open Source Project 489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project** 589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project** Licensed under the Apache License, Version 2.0 (the "License"); 689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project** you may not use this file except in compliance with the License. 789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project** You may obtain a copy of the License at 889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project** 989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project** http://www.apache.org/licenses/LICENSE-2.0 1089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project** 1189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project** Unless required by applicable law or agreed to in writing, software 1289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project** distributed under the License is distributed on an "AS IS" BASIS, 1389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project** See the License for the specific language governing permissions and 1589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project** limitations under the License. 1689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project*/ 1789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project//#define LOG_NDEBUG 0 2089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project#define LOG_TAG "AudioTrack" 2189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 2289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project#include <stdint.h> 2389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project#include <sys/types.h> 2489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project#include <limits.h> 2589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 2689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project#include <sched.h> 2789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project#include <sys/resource.h> 2889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 2989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project#include <private/media/AudioTrackShared.h> 3089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 3189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project#include <media/AudioSystem.h> 3289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project#include <media/AudioTrack.h> 3389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 3489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project#include <utils/Log.h> 357562408b2261d38415453378b6188f74fda99d88Mathias Agopian#include <binder/Parcel.h> 367562408b2261d38415453378b6188f74fda99d88Mathias Agopian#include <binder/IPCThreadState.h> 3789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project#include <utils/Timers.h> 3838ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent#include <utils/Atomic.h> 3989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 40fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin#include <cutils/bitops.h> 41fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin 4264760240f931714858a59c1579f07264d7182ba2Dima Zavin#include <system/audio.h> 43fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin#include <hardware/audio_policy.h> 44fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin 4589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project#define LIKELY( exp ) (__builtin_expect( (exp) != 0, true )) 4689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project#define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false )) 4789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 4889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectnamespace android { 4933005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh// --------------------------------------------------------------------------- 5033005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh 5133005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh// static 5233005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yehstatus_t AudioTrack::getMinFrameCount( 5333005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh int* frameCount, 5433005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh int streamType, 5533005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh uint32_t sampleRate) 5633005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh{ 5733005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh int afSampleRate; 5833005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh if (AudioSystem::getOutputSamplingRate(&afSampleRate, streamType) != NO_ERROR) { 5933005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh return NO_INIT; 6033005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh } 6133005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh int afFrameCount; 6233005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh if (AudioSystem::getOutputFrameCount(&afFrameCount, streamType) != NO_ERROR) { 6333005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh return NO_INIT; 6433005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh } 6533005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh uint32_t afLatency; 6633005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh if (AudioSystem::getOutputLatency(&afLatency, streamType) != NO_ERROR) { 6733005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh return NO_INIT; 6833005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh } 6933005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh 7033005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh // Ensure that buffer depth covers at least audio hardware latency 7133005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh uint32_t minBufCount = afLatency / ((1000 * afFrameCount) / afSampleRate); 7233005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh if (minBufCount < 2) minBufCount = 2; 7333005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh 7433005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh *frameCount = (sampleRate == 0) ? afFrameCount * minBufCount : 7533005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh afFrameCount * minBufCount * sampleRate / afSampleRate; 7633005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh return NO_ERROR; 7733005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh} 7889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 7989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project// --------------------------------------------------------------------------- 8089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 8189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source ProjectAudioTrack::AudioTrack() 8289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project : mStatus(NO_INIT) 8389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 8489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 8589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 8689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source ProjectAudioTrack::AudioTrack( 8789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project int streamType, 8889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t sampleRate, 8989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project int format, 90c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent int channels, 9189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project int frameCount, 9289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t flags, 9389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project callback_t cbf, 9489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project void* user, 95be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent int notificationFrames, 96be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent int sessionId) 9789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project : mStatus(NO_INIT) 9889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 99c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent mStatus = set(streamType, sampleRate, format, channels, 100a514bdb58b5de4986679f72b7204b4764f7a2778Eric Laurent frameCount, flags, cbf, user, notificationFrames, 101a514bdb58b5de4986679f72b7204b4764f7a2778Eric Laurent 0, false, sessionId); 10289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 10389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 10489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source ProjectAudioTrack::AudioTrack( 10589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project int streamType, 10689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t sampleRate, 10789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project int format, 108c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent int channels, 10989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project const sp<IMemory>& sharedBuffer, 11089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t flags, 11189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project callback_t cbf, 11289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project void* user, 113be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent int notificationFrames, 114be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent int sessionId) 11589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project : mStatus(NO_INIT) 11689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 117c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent mStatus = set(streamType, sampleRate, format, channels, 118a514bdb58b5de4986679f72b7204b4764f7a2778Eric Laurent 0, flags, cbf, user, notificationFrames, 119a514bdb58b5de4986679f72b7204b4764f7a2778Eric Laurent sharedBuffer, false, sessionId); 12089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 12189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 12289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source ProjectAudioTrack::~AudioTrack() 12389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 12489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project LOGV_IF(mSharedBuffer != 0, "Destructor sharedBuffer: %p", mSharedBuffer->pointer()); 12589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 12689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (mStatus == NO_ERROR) { 12789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Make sure that callback function exits in the case where 12889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // it is looping on buffer full condition in obtainBuffer(). 12989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Otherwise the callback thread will never exit. 13089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project stop(); 13189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (mAudioTrackThread != 0) { 13289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mAudioTrackThread->requestExitAndWait(); 13389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mAudioTrackThread.clear(); 13489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 13589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mAudioTrack.clear(); 13689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project IPCThreadState::self()->flushCommands(); 13789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 13889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 13989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 14089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectstatus_t AudioTrack::set( 14189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project int streamType, 14289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t sampleRate, 14389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project int format, 144c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent int channels, 14589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project int frameCount, 14689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t flags, 14789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project callback_t cbf, 14889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project void* user, 14989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project int notificationFrames, 15089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project const sp<IMemory>& sharedBuffer, 151be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent bool threadCanCallJava, 152be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent int sessionId) 15389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 15489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 15589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project LOGV_IF(sharedBuffer != 0, "sharedBuffer: %p, size: %d", sharedBuffer->pointer(), sharedBuffer->size()); 15689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1571703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 1581dd70b9f04961a06fcb73a97fca10a53b3245d3cEric Laurent if (mAudioTrack != 0) { 15989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project LOGE("Track already in use"); 16089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return INVALID_OPERATION; 16189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 16289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 16389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project int afSampleRate; 16489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (AudioSystem::getOutputSamplingRate(&afSampleRate, streamType) != NO_ERROR) { 16589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_INIT; 16689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 16789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t afLatency; 16889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (AudioSystem::getOutputLatency(&afLatency, streamType) != NO_ERROR) { 16989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_INIT; 17089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 17189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 17289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // handle default values first. 173fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin if (streamType == AUDIO_STREAM_DEFAULT) { 174fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin streamType = AUDIO_STREAM_MUSIC; 17589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 17689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (sampleRate == 0) { 17789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project sampleRate = afSampleRate; 17889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 17989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // these below should probably come from the audioFlinger too... 18089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (format == 0) { 181fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin format = AUDIO_FORMAT_PCM_16_BIT; 18289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 183c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent if (channels == 0) { 184fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin channels = AUDIO_CHANNEL_OUT_STEREO; 18589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 18689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 18789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // validate parameters 188fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin if (!audio_is_valid_format(format)) { 18989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project LOGE("Invalid format"); 19089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return BAD_VALUE; 19189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 192c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 193c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // force direct flag if format is not linear PCM 194fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin if (!audio_is_linear_pcm(format)) { 195fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin flags |= AUDIO_POLICY_OUTPUT_FLAG_DIRECT; 196c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent } 197c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 198fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin if (!audio_is_output_channel(channels)) { 199c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent LOGE("Invalid channel mask"); 20089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return BAD_VALUE; 20189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 202fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin uint32_t channelCount = popcount(channels); 20389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 204fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin audio_io_handle_t output = AudioSystem::getOutput( 205fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin (audio_stream_type_t)streamType, 206fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin sampleRate,format, channels, 207fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin (audio_policy_output_flags_t)flags); 20889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 209c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent if (output == 0) { 210c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent LOGE("Could not get audio output for stream type %d", streamType); 211c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent return BAD_VALUE; 21289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 21389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 21434f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent mVolume[LEFT] = 1.0f; 21534f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent mVolume[RIGHT] = 1.0f; 216be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent mSendLevel = 0; 217d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent mFrameCount = frameCount; 218d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent mNotificationFramesReq = notificationFrames; 219be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent mSessionId = sessionId; 2202beeb50b1bba9e92f6cacfeca37fe9fa9d36ead1Eric Laurent mAuxEffectId = 0; 221be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent 22234f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent // create the IAudioTrack 2231703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent status_t status = createTrack_l(streamType, 2241703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent sampleRate, 2251703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent format, 2261703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent channelCount, 2271703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent frameCount, 2281703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent flags, 2291703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent sharedBuffer, 2301703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent output, 2311703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent true); 23289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 23334f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent if (status != NO_ERROR) { 23489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return status; 23589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 23634f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent 23789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (cbf != 0) { 23889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mAudioTrackThread = new AudioTrackThread(*this, threadCanCallJava); 23989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (mAudioTrackThread == 0) { 24089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project LOGE("Could not create callback thread"); 24189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_INIT; 24289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 24389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 24489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 24589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mStatus = NO_ERROR; 24689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 24789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mStreamType = streamType; 24889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mFormat = format; 249c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent mChannels = channels; 25089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mChannelCount = channelCount; 25189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mSharedBuffer = sharedBuffer; 25289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mMuted = false; 25389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mActive = 0; 25489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mCbf = cbf; 25589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mUserData = user; 25689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mLoopCount = 0; 25789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mMarkerPosition = 0; 2582c22aeb65e801f663a754d043062f85e49f77739Jean-Michel Trivi mMarkerReached = false; 25989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mNewPosition = 0; 26089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mUpdatePeriod = 0; 261c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent mFlags = flags; 26289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 26389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_ERROR; 26489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 26589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 26689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectstatus_t AudioTrack::initCheck() const 26789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 26889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return mStatus; 26989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 27089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 27189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project// ------------------------------------------------------------------------- 27289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 27389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectuint32_t AudioTrack::latency() const 27489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 27589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return mLatency; 27689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 27789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 27889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectint AudioTrack::streamType() const 27989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 28089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return mStreamType; 28189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 28289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 28389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectint AudioTrack::format() const 28489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 28589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return mFormat; 28689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 28789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 28889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectint AudioTrack::channelCount() const 28989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 29089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return mChannelCount; 29189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 29289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 29389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectuint32_t AudioTrack::frameCount() const 29489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 295d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent return mCblk->frameCount; 29689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 29789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 29889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectint AudioTrack::frameSize() const 29989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 300fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin if (audio_is_linear_pcm(mFormat)) { 301fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin return channelCount()*((format() == AUDIO_FORMAT_PCM_8_BIT) ? sizeof(uint8_t) : sizeof(int16_t)); 302c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent } else { 303c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent return sizeof(uint8_t); 304c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent } 30589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 30689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 30789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectsp<IMemory>& AudioTrack::sharedBuffer() 30889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 30989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return mSharedBuffer; 31089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 31189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 31289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project// ------------------------------------------------------------------------- 31389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 31489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectvoid AudioTrack::start() 31589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 31689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project sp<AudioTrackThread> t = mAudioTrackThread; 317d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent status_t status; 31889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 31989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project LOGV("start %p", this); 32089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (t != 0) { 32189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (t->exitPending()) { 32289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (t->requestExitAndWait() == WOULD_BLOCK) { 32389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project LOGE("AudioTrack::start called from thread"); 32489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return; 32589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 32689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 32789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project t->mLock.lock(); 32889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 32989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 330f5aafb209d01ba2ab6cb55d1a12cfc653e2b4be0Eric Laurent AutoMutex lock(mLock); 3311703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent // acquire a strong reference on the IMemory and IAudioTrack so that they cannot be destroyed 3321703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent // while we are accessing the cblk 3331703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent sp <IAudioTrack> audioTrack = mAudioTrack; 3341703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent sp <IMemory> iMem = mCblkMemory; 3351703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent audio_track_cblk_t* cblk = mCblk; 3361703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 337f5aafb209d01ba2ab6cb55d1a12cfc653e2b4be0Eric Laurent if (mActive == 0) { 338f5aafb209d01ba2ab6cb55d1a12cfc653e2b4be0Eric Laurent mActive = 1; 3391703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mNewPosition = cblk->server + mUpdatePeriod; 34033797ea64d067dfeaacbfd7ebe7f3383b73961b5Eric Laurent cblk->lock.lock(); 3411703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->bufferTimeoutMs = MAX_STARTUP_TIMEOUT_MS; 3421703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->waitTimeMs = 0; 34338ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent android_atomic_and(~CBLK_DISABLED_ON, &cblk->flags); 3442b584244930c9de0e3bc46898a801e9ccb731900Eric Laurent if (t != 0) { 3452b584244930c9de0e3bc46898a801e9ccb731900Eric Laurent t->run("AudioTrackThread", THREAD_PRIORITY_AUDIO_CLIENT); 3462b584244930c9de0e3bc46898a801e9ccb731900Eric Laurent } else { 3472b584244930c9de0e3bc46898a801e9ccb731900Eric Laurent setpriority(PRIO_PROCESS, 0, THREAD_PRIORITY_AUDIO_CLIENT); 3482b584244930c9de0e3bc46898a801e9ccb731900Eric Laurent } 3492b584244930c9de0e3bc46898a801e9ccb731900Eric Laurent 3501703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent LOGV("start %p before lock cblk %p", this, mCblk); 3511703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent if (!(cblk->flags & CBLK_INVALID_MSK)) { 3521703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->lock.unlock(); 353d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent status = mAudioTrack->start(); 3541703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->lock.lock(); 3551703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent if (status == DEAD_OBJECT) { 35638ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent android_atomic_or(CBLK_INVALID_ON, &cblk->flags); 3576100d2d60517ff33ed8eb35d0b7ea63cde0831c9Eric Laurent } 3582b584244930c9de0e3bc46898a801e9ccb731900Eric Laurent } 3591703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent if (cblk->flags & CBLK_INVALID_MSK) { 3601703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent status = restoreTrack_l(cblk, true); 3611703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } 3621703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->lock.unlock(); 3632b584244930c9de0e3bc46898a801e9ccb731900Eric Laurent if (status != NO_ERROR) { 3642b584244930c9de0e3bc46898a801e9ccb731900Eric Laurent LOGV("start() failed"); 365f5aafb209d01ba2ab6cb55d1a12cfc653e2b4be0Eric Laurent mActive = 0; 36634f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent if (t != 0) { 3672b584244930c9de0e3bc46898a801e9ccb731900Eric Laurent t->requestExit(); 36834f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent } else { 3692b584244930c9de0e3bc46898a801e9ccb731900Eric Laurent setpriority(PRIO_PROCESS, 0, ANDROID_PRIORITY_NORMAL); 37034f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent } 37189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 37289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 37389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 37489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (t != 0) { 37589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project t->mLock.unlock(); 37689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 37789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 37889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 37989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectvoid AudioTrack::stop() 38089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 38189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project sp<AudioTrackThread> t = mAudioTrackThread; 38289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 38389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project LOGV("stop %p", this); 38489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (t != 0) { 38589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project t->mLock.lock(); 38689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 38789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 388f5aafb209d01ba2ab6cb55d1a12cfc653e2b4be0Eric Laurent AutoMutex lock(mLock); 389f5aafb209d01ba2ab6cb55d1a12cfc653e2b4be0Eric Laurent if (mActive == 1) { 390f5aafb209d01ba2ab6cb55d1a12cfc653e2b4be0Eric Laurent mActive = 0; 3911dd70b9f04961a06fcb73a97fca10a53b3245d3cEric Laurent mCblk->cv.signal(); 39289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mAudioTrack->stop(); 39389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Cancel loops (If we are in the middle of a loop, playback 39489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // would not stop until loopCount reaches 0). 3951703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent setLoop_l(0, 0, 0); 3962c22aeb65e801f663a754d043062f85e49f77739Jean-Michel Trivi // the playback head position will reset to 0, so if a marker is set, we need 3972c22aeb65e801f663a754d043062f85e49f77739Jean-Michel Trivi // to activate it again 3982c22aeb65e801f663a754d043062f85e49f77739Jean-Michel Trivi mMarkerReached = false; 39989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Force flush if a shared buffer is used otherwise audioflinger 40089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // will not stop before end of buffer is reached. 40189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (mSharedBuffer != 0) { 4021703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent flush_l(); 40389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 40489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (t != 0) { 40589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project t->requestExit(); 40689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } else { 40789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project setpriority(PRIO_PROCESS, 0, ANDROID_PRIORITY_NORMAL); 40889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 40989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 41089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 41189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (t != 0) { 41289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project t->mLock.unlock(); 41389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 41489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 41589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 41689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectbool AudioTrack::stopped() const 41789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 41889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return !mActive; 41989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 42089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 42189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectvoid AudioTrack::flush() 42289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 4231703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 4241703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent flush_l(); 4251703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent} 4261703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 4271703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent// must be called with mLock held 4281703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurentvoid AudioTrack::flush_l() 4291703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent{ 43089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project LOGV("flush"); 431c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 4322c22aeb65e801f663a754d043062f85e49f77739Jean-Michel Trivi // clear playback marker and periodic update counter 4332c22aeb65e801f663a754d043062f85e49f77739Jean-Michel Trivi mMarkerPosition = 0; 4342c22aeb65e801f663a754d043062f85e49f77739Jean-Michel Trivi mMarkerReached = false; 4352c22aeb65e801f663a754d043062f85e49f77739Jean-Michel Trivi mUpdatePeriod = 0; 436c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 43789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (!mActive) { 43889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mAudioTrack->flush(); 43989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Release AudioTrack callback thread in case it was waiting for new buffers 44089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // in AudioTrack::obtainBuffer() 44189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mCblk->cv.signal(); 44289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 44389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 44489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 44589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectvoid AudioTrack::pause() 44689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 44789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project LOGV("pause"); 448f5aafb209d01ba2ab6cb55d1a12cfc653e2b4be0Eric Laurent AutoMutex lock(mLock); 449f5aafb209d01ba2ab6cb55d1a12cfc653e2b4be0Eric Laurent if (mActive == 1) { 450f5aafb209d01ba2ab6cb55d1a12cfc653e2b4be0Eric Laurent mActive = 0; 45189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mAudioTrack->pause(); 45289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 45389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 45489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 45589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectvoid AudioTrack::mute(bool e) 45689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 45789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mAudioTrack->mute(e); 45889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mMuted = e; 45989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 46089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 46189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectbool AudioTrack::muted() const 46289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 46389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return mMuted; 46489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 46589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 466be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurentstatus_t AudioTrack::setVolume(float left, float right) 46789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 468be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent if (left > 1.0f || right > 1.0f) { 469be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent return BAD_VALUE; 470be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent } 471be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent 4721703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 47389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mVolume[LEFT] = left; 47489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mVolume[RIGHT] = right; 47589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 47689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // write must be atomic 477be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent mCblk->volumeLR = (uint32_t(uint16_t(right * 0x1000)) << 16) | uint16_t(left * 0x1000); 478be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent 479be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent return NO_ERROR; 48089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 48189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 48289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectvoid AudioTrack::getVolume(float* left, float* right) 48389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 484be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent if (left != NULL) { 485be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent *left = mVolume[LEFT]; 486be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent } 487be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent if (right != NULL) { 488be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent *right = mVolume[RIGHT]; 489be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent } 490be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent} 491be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent 4922beeb50b1bba9e92f6cacfeca37fe9fa9d36ead1Eric Laurentstatus_t AudioTrack::setAuxEffectSendLevel(float level) 493be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent{ 4942beeb50b1bba9e92f6cacfeca37fe9fa9d36ead1Eric Laurent LOGV("setAuxEffectSendLevel(%f)", level); 495be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent if (level > 1.0f) { 496be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent return BAD_VALUE; 497be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent } 4981703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 499be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent 500be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent mSendLevel = level; 501be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent 502be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent mCblk->sendLevel = uint16_t(level * 0x1000); 503be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent 504be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent return NO_ERROR; 505be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent} 506be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent 5072beeb50b1bba9e92f6cacfeca37fe9fa9d36ead1Eric Laurentvoid AudioTrack::getAuxEffectSendLevel(float* level) 508be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent{ 509be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent if (level != NULL) { 510be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent *level = mSendLevel; 511be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent } 51289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 51389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 514573266210fb2b2e7d86fbd46d0dfe16763611d91Eric Laurentstatus_t AudioTrack::setSampleRate(int rate) 51589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 51689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project int afSamplingRate; 51789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 51889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (AudioSystem::getOutputSamplingRate(&afSamplingRate, mStreamType) != NO_ERROR) { 519573266210fb2b2e7d86fbd46d0dfe16763611d91Eric Laurent return NO_INIT; 52089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 52189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Resampler implementation limits input sampling rate to 2 x output sampling rate. 522573266210fb2b2e7d86fbd46d0dfe16763611d91Eric Laurent if (rate <= 0 || rate > afSamplingRate*2 ) return BAD_VALUE; 52389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 5241703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 525573266210fb2b2e7d86fbd46d0dfe16763611d91Eric Laurent mCblk->sampleRate = rate; 526573266210fb2b2e7d86fbd46d0dfe16763611d91Eric Laurent return NO_ERROR; 52789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 52889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 52989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectuint32_t AudioTrack::getSampleRate() 53089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 5311703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 532573266210fb2b2e7d86fbd46d0dfe16763611d91Eric Laurent return mCblk->sampleRate; 53389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 53489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 53589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectstatus_t AudioTrack::setLoop(uint32_t loopStart, uint32_t loopEnd, int loopCount) 53689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 5371703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 5381703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent return setLoop_l(loopStart, loopEnd, loopCount); 5391703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent} 5401703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 5411703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent// must be called with mLock held 5421703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurentstatus_t AudioTrack::setLoop_l(uint32_t loopStart, uint32_t loopEnd, int loopCount) 5431703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent{ 54489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project audio_track_cblk_t* cblk = mCblk; 54589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 54689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project Mutex::Autolock _l(cblk->lock); 54789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 54889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (loopCount == 0) { 54989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project cblk->loopStart = UINT_MAX; 55089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project cblk->loopEnd = UINT_MAX; 55189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project cblk->loopCount = 0; 55289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mLoopCount = 0; 55389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_ERROR; 55489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 55589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 55689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (loopStart >= loopEnd || 5579b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent loopEnd - loopStart > cblk->frameCount || 5589b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent cblk->server > loopStart) { 559d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent LOGE("setLoop invalid value: loopStart %d, loopEnd %d, loopCount %d, framecount %d, user %d", loopStart, loopEnd, loopCount, cblk->frameCount, cblk->user); 56089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return BAD_VALUE; 56189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 56289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 5639b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent if ((mSharedBuffer != 0) && (loopEnd > cblk->frameCount)) { 56489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project LOGE("setLoop invalid value: loop markers beyond data: loopStart %d, loopEnd %d, framecount %d", 565d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent loopStart, loopEnd, cblk->frameCount); 56689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return BAD_VALUE; 567c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent } 56889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 56989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project cblk->loopStart = loopStart; 57089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project cblk->loopEnd = loopEnd; 57189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project cblk->loopCount = loopCount; 57289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mLoopCount = loopCount; 57389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 57489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_ERROR; 57589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 57689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 57789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectstatus_t AudioTrack::getLoop(uint32_t *loopStart, uint32_t *loopEnd, int *loopCount) 57889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 5791703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 58089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (loopStart != 0) { 58189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project *loopStart = mCblk->loopStart; 58289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 58389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (loopEnd != 0) { 58489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project *loopEnd = mCblk->loopEnd; 58589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 58689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (loopCount != 0) { 58789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (mCblk->loopCount < 0) { 58889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project *loopCount = -1; 58989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } else { 59089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project *loopCount = mCblk->loopCount; 59189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 59289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 59389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 59489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_ERROR; 59589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 59689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 59789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectstatus_t AudioTrack::setMarkerPosition(uint32_t marker) 59889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 59989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (mCbf == 0) return INVALID_OPERATION; 60089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 60189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mMarkerPosition = marker; 6022c22aeb65e801f663a754d043062f85e49f77739Jean-Michel Trivi mMarkerReached = false; 60389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 60489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_ERROR; 60589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 60689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 60789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectstatus_t AudioTrack::getMarkerPosition(uint32_t *marker) 60889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 60989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (marker == 0) return BAD_VALUE; 61089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 61189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project *marker = mMarkerPosition; 61289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 61389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_ERROR; 61489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 61589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 61689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectstatus_t AudioTrack::setPositionUpdatePeriod(uint32_t updatePeriod) 61789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 61889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (mCbf == 0) return INVALID_OPERATION; 61989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 62089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t curPosition; 62189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project getPosition(&curPosition); 62289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mNewPosition = curPosition + updatePeriod; 62389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mUpdatePeriod = updatePeriod; 62489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 62589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_ERROR; 62689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 62789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 62889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectstatus_t AudioTrack::getPositionUpdatePeriod(uint32_t *updatePeriod) 62989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 63089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (updatePeriod == 0) return BAD_VALUE; 63189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 63289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project *updatePeriod = mUpdatePeriod; 63389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 63489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_ERROR; 63589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 63689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 63789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectstatus_t AudioTrack::setPosition(uint32_t position) 63889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 6391703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 64089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project Mutex::Autolock _l(mCblk->lock); 64189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 64289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (!stopped()) return INVALID_OPERATION; 64389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 64489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (position > mCblk->user) return BAD_VALUE; 64589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 64689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mCblk->server = position; 64738ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent android_atomic_or(CBLK_FORCEREADY_ON, &mCblk->flags); 648c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 64989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_ERROR; 65089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 65189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 65289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectstatus_t AudioTrack::getPosition(uint32_t *position) 65389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 65489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (position == 0) return BAD_VALUE; 6551703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 65689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project *position = mCblk->server; 65789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 65889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_ERROR; 65989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 66089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 66189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectstatus_t AudioTrack::reload() 66289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 6631703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 6641703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 66589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (!stopped()) return INVALID_OPERATION; 666c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 6671703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent flush_l(); 66889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 669d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent mCblk->stepUser(mCblk->frameCount); 67089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 67189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_ERROR; 67289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 67389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 674c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurentaudio_io_handle_t AudioTrack::getOutput() 675c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent{ 6761703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 6771703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent return getOutput_l(); 6781703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent} 6791703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 6801703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent// must be called with mLock held 6811703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurentaudio_io_handle_t AudioTrack::getOutput_l() 6821703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent{ 683fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin return AudioSystem::getOutput((audio_stream_type_t)mStreamType, 684fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin mCblk->sampleRate, mFormat, mChannels, (audio_policy_output_flags_t)mFlags); 685c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent} 686c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 687be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurentint AudioTrack::getSessionId() 688be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent{ 689be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent return mSessionId; 690be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent} 691be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent 692be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurentstatus_t AudioTrack::attachAuxEffect(int effectId) 693be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent{ 6942beeb50b1bba9e92f6cacfeca37fe9fa9d36ead1Eric Laurent LOGV("attachAuxEffect(%d)", effectId); 6952beeb50b1bba9e92f6cacfeca37fe9fa9d36ead1Eric Laurent status_t status = mAudioTrack->attachAuxEffect(effectId); 6962beeb50b1bba9e92f6cacfeca37fe9fa9d36ead1Eric Laurent if (status == NO_ERROR) { 6972beeb50b1bba9e92f6cacfeca37fe9fa9d36ead1Eric Laurent mAuxEffectId = effectId; 6982beeb50b1bba9e92f6cacfeca37fe9fa9d36ead1Eric Laurent } 6992beeb50b1bba9e92f6cacfeca37fe9fa9d36ead1Eric Laurent return status; 700be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent} 701be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent 70289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project// ------------------------------------------------------------------------- 70389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 7041703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent// must be called with mLock held 7051703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurentstatus_t AudioTrack::createTrack_l( 70634f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent int streamType, 70734f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent uint32_t sampleRate, 70834f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent int format, 70934f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent int channelCount, 71034f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent int frameCount, 71134f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent uint32_t flags, 71234f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent const sp<IMemory>& sharedBuffer, 713d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent audio_io_handle_t output, 714d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent bool enforceFrameCount) 71534f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent{ 71634f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent status_t status; 71734f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent const sp<IAudioFlinger>& audioFlinger = AudioSystem::get_audio_flinger(); 71834f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent if (audioFlinger == 0) { 71934f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent LOGE("Could not get audioflinger"); 72034f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent return NO_INIT; 72134f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent } 72234f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent 723d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent int afSampleRate; 724d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent if (AudioSystem::getOutputSamplingRate(&afSampleRate, streamType) != NO_ERROR) { 725d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent return NO_INIT; 726d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } 727d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent int afFrameCount; 728d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent if (AudioSystem::getOutputFrameCount(&afFrameCount, streamType) != NO_ERROR) { 729d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent return NO_INIT; 730d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } 731d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent uint32_t afLatency; 732d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent if (AudioSystem::getOutputLatency(&afLatency, streamType) != NO_ERROR) { 733d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent return NO_INIT; 734d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } 735d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent 736d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent mNotificationFramesAct = mNotificationFramesReq; 737fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin if (!audio_is_linear_pcm(format)) { 738d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent if (sharedBuffer != 0) { 739d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent frameCount = sharedBuffer->size(); 740d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } 741d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } else { 742d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent // Ensure that buffer depth covers at least audio hardware latency 743d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent uint32_t minBufCount = afLatency / ((1000 * afFrameCount)/afSampleRate); 744d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent if (minBufCount < 2) minBufCount = 2; 745d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent 746d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent int minFrameCount = (afFrameCount*sampleRate*minBufCount)/afSampleRate; 747d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent 748d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent if (sharedBuffer == 0) { 749d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent if (frameCount == 0) { 750d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent frameCount = minFrameCount; 751d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } 752d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent if (mNotificationFramesAct == 0) { 753d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent mNotificationFramesAct = frameCount/2; 754d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } 755d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent // Make sure that application is notified with sufficient margin 756d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent // before underrun 757d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent if (mNotificationFramesAct > (uint32_t)frameCount/2) { 758d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent mNotificationFramesAct = frameCount/2; 759d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } 760d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent if (frameCount < minFrameCount) { 761d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent if (enforceFrameCount) { 762d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent LOGE("Invalid buffer size: minFrameCount %d, frameCount %d", minFrameCount, frameCount); 763d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent return BAD_VALUE; 764d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } else { 765d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent frameCount = minFrameCount; 766d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } 767d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } 768d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } else { 769d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent // Ensure that buffer alignment matches channelcount 770d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent if (((uint32_t)sharedBuffer->pointer() & (channelCount | 1)) != 0) { 771d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent LOGE("Invalid buffer alignement: address %p, channelCount %d", sharedBuffer->pointer(), channelCount); 772d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent return BAD_VALUE; 773d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } 774d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent frameCount = sharedBuffer->size()/channelCount/sizeof(int16_t); 775d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } 776d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } 777d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent 77834f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent sp<IAudioTrack> track = audioFlinger->createTrack(getpid(), 77934f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent streamType, 78034f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent sampleRate, 78134f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent format, 78234f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent channelCount, 78334f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent frameCount, 78434f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent ((uint16_t)flags) << 16, 78534f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent sharedBuffer, 78634f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent output, 787be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent &mSessionId, 78834f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent &status); 78934f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent 79034f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent if (track == 0) { 79134f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent LOGE("AudioFlinger could not create track, status: %d", status); 79234f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent return status; 79334f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent } 79434f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent sp<IMemory> cblk = track->getCblk(); 79534f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent if (cblk == 0) { 79634f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent LOGE("Could not get control block"); 79734f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent return NO_INIT; 79834f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent } 79934f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent mAudioTrack.clear(); 80034f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent mAudioTrack = track; 80134f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent mCblkMemory.clear(); 80234f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent mCblkMemory = cblk; 80334f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent mCblk = static_cast<audio_track_cblk_t*>(cblk->pointer()); 80438ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent android_atomic_or(CBLK_DIRECTION_OUT, &mCblk->flags); 80534f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent if (sharedBuffer == 0) { 80634f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent mCblk->buffers = (char*)mCblk + sizeof(audio_track_cblk_t); 80734f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent } else { 80834f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent mCblk->buffers = sharedBuffer->pointer(); 80934f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent // Force buffer full condition as data is already present in shared memory 810d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent mCblk->stepUser(mCblk->frameCount); 81134f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent } 81234f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent 813be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent mCblk->volumeLR = (uint32_t(uint16_t(mVolume[RIGHT] * 0x1000)) << 16) | uint16_t(mVolume[LEFT] * 0x1000); 814be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent mCblk->sendLevel = uint16_t(mSendLevel * 0x1000); 8152beeb50b1bba9e92f6cacfeca37fe9fa9d36ead1Eric Laurent mAudioTrack->attachAuxEffect(mAuxEffectId); 8166100d2d60517ff33ed8eb35d0b7ea63cde0831c9Eric Laurent mCblk->bufferTimeoutMs = MAX_STARTUP_TIMEOUT_MS; 8176100d2d60517ff33ed8eb35d0b7ea63cde0831c9Eric Laurent mCblk->waitTimeMs = 0; 818d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent mRemainingFrames = mNotificationFramesAct; 819d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent mLatency = afLatency + (1000*mCblk->frameCount) / sampleRate; 82034f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent return NO_ERROR; 82134f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent} 82234f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent 82389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectstatus_t AudioTrack::obtainBuffer(Buffer* audioBuffer, int32_t waitCount) 82489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 8251703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 82689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project int active; 82789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project status_t result; 82889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project audio_track_cblk_t* cblk = mCblk; 82989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t framesReq = audioBuffer->frameCount; 8301dd70b9f04961a06fcb73a97fca10a53b3245d3cEric Laurent uint32_t waitTimeMs = (waitCount < 0) ? cblk->bufferTimeoutMs : WAIT_PERIOD_MS; 83189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 83289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project audioBuffer->frameCount = 0; 83389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project audioBuffer->size = 0; 83489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 83589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t framesAvail = cblk->framesAvailable(); 83689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 8379b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent cblk->lock.lock(); 8389b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent if (cblk->flags & CBLK_INVALID_MSK) { 8399b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent goto create_new_track; 8409b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent } 8419b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent cblk->lock.unlock(); 8429b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent 84389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (framesAvail == 0) { 84434f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent cblk->lock.lock(); 84589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project goto start_loop_here; 84689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project while (framesAvail == 0) { 84789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project active = mActive; 84889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (UNLIKELY(!active)) { 84989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project LOGV("Not active and NO_MORE_BUFFERS"); 85034f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent cblk->lock.unlock(); 85189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_MORE_BUFFERS; 85289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 85334f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent if (UNLIKELY(!waitCount)) { 85434f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent cblk->lock.unlock(); 85589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return WOULD_BLOCK; 85634f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent } 857d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent if (!(cblk->flags & CBLK_INVALID_MSK)) { 8581703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mLock.unlock(); 859d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent result = cblk->cv.waitRelative(cblk->lock, milliseconds(waitTimeMs)); 8601703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->lock.unlock(); 8611703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mLock.lock(); 8621703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent if (mActive == 0) { 8631703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent return status_t(STOPPED); 8641703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } 8651703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->lock.lock(); 866d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } 8671703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 868d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent if (cblk->flags & CBLK_INVALID_MSK) { 869d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent goto create_new_track; 870d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } 871c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent if (__builtin_expect(result!=NO_ERROR, false)) { 8721dd70b9f04961a06fcb73a97fca10a53b3245d3cEric Laurent cblk->waitTimeMs += waitTimeMs; 87389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (cblk->waitTimeMs >= cblk->bufferTimeoutMs) { 87489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // timing out when a loop has been set and we have already written upto loop end 87589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // is a normal condition: no need to wake AudioFlinger up. 87689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (cblk->user < cblk->loopEnd) { 87789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project LOGW( "obtainBuffer timed out (is the CPU pegged?) %p " 87889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project "user=%08x, server=%08x", this, cblk->user, cblk->server); 879c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent //unlock cblk mutex before calling mAudioTrack->start() (see issue #1617140) 88089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project cblk->lock.unlock(); 88134f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent result = mAudioTrack->start(); 8821703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->lock.lock(); 88334f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent if (result == DEAD_OBJECT) { 88438ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent android_atomic_or(CBLK_INVALID_ON, &cblk->flags); 885d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurentcreate_new_track: 8861703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent result = restoreTrack_l(cblk, false); 8871703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } 8881703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent if (result != NO_ERROR) { 8891703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent LOGW("obtainBuffer create Track error %d", result); 8901703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->lock.unlock(); 8911703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent return result; 89234f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent } 89389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 89489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project cblk->waitTimeMs = 0; 89589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 896c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 89789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (--waitCount == 0) { 89834f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent cblk->lock.unlock(); 89989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return TIMED_OUT; 90089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 90189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 90289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // read the server count again 90389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project start_loop_here: 90489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project framesAvail = cblk->framesAvailable_l(); 90589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 90634f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent cblk->lock.unlock(); 90789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 90889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 90944d9848d6656777a18019223e0d35f2fcc67719aEric Laurent // restart track if it was disabled by audioflinger due to previous underrun 9101703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent if (mActive && (cblk->flags & CBLK_DISABLED_MSK)) { 91138ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent android_atomic_and(~CBLK_DISABLED_ON, &cblk->flags); 91238ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent LOGW("obtainBuffer() track %p disabled, restarting", this); 91338ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent mAudioTrack->start(); 91444d9848d6656777a18019223e0d35f2fcc67719aEric Laurent } 91544d9848d6656777a18019223e0d35f2fcc67719aEric Laurent 91689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project cblk->waitTimeMs = 0; 917c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 91889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (framesReq > framesAvail) { 91989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project framesReq = framesAvail; 92089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 92189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 92289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t u = cblk->user; 92389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t bufferEnd = cblk->userBase + cblk->frameCount; 92489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 92589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (u + framesReq > bufferEnd) { 92689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project framesReq = bufferEnd - u; 92789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 92889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 929c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent audioBuffer->flags = mMuted ? Buffer::MUTE : 0; 930c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent audioBuffer->channelCount = mChannelCount; 931c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent audioBuffer->frameCount = framesReq; 932c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent audioBuffer->size = framesReq * cblk->frameSize; 933fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin if (audio_is_linear_pcm(mFormat)) { 934fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin audioBuffer->format = AUDIO_FORMAT_PCM_16_BIT; 935c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent } else { 936c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent audioBuffer->format = mFormat; 937c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent } 938c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent audioBuffer->raw = (int8_t *)cblk->buffer(u); 93989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project active = mActive; 94089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return active ? status_t(NO_ERROR) : status_t(STOPPED); 94189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 94289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 94389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectvoid AudioTrack::releaseBuffer(Buffer* audioBuffer) 94489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 9451703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 9461703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mCblk->stepUser(audioBuffer->frameCount); 94789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 94889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 94989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project// ------------------------------------------------------------------------- 95089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 95189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectssize_t AudioTrack::write(const void* buffer, size_t userSize) 95289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 95389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 95489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (mSharedBuffer != 0) return INVALID_OPERATION; 95589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 95689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (ssize_t(userSize) < 0) { 95789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // sanity-check. user is most-likely passing an error code. 95889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project LOGE("AudioTrack::write(buffer=%p, size=%u (%d)", 95989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project buffer, userSize, userSize); 96089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return BAD_VALUE; 96189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 96289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 96389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project LOGV("write %p: %d bytes, mActive=%d", this, userSize, mActive); 96489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 9651703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent // acquire a strong reference on the IMemory and IAudioTrack so that they cannot be destroyed 9661703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent // while we are accessing the cblk 9671703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mLock.lock(); 9681703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent sp <IAudioTrack> audioTrack = mAudioTrack; 9691703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent sp <IMemory> iMem = mCblkMemory; 9701703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mLock.unlock(); 9711703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 97289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project ssize_t written = 0; 97389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project const int8_t *src = (const int8_t *)buffer; 97489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project Buffer audioBuffer; 97533797ea64d067dfeaacbfd7ebe7f3383b73961b5Eric Laurent size_t frameSz = (size_t)frameSize(); 97689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 97789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project do { 97833797ea64d067dfeaacbfd7ebe7f3383b73961b5Eric Laurent audioBuffer.frameCount = userSize/frameSz; 979c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 98089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Calling obtainBuffer() with a negative wait count causes 98189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // an (almost) infinite wait time. 98289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project status_t err = obtainBuffer(&audioBuffer, -1); 98389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (err < 0) { 98489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // out of buffers, return #bytes written 98589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (err == status_t(NO_MORE_BUFFERS)) 98689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project break; 98789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return ssize_t(err); 98889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 98989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 99089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project size_t toWrite; 991c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 992fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin if (mFormat == AUDIO_FORMAT_PCM_8_BIT && !(mFlags & AUDIO_POLICY_OUTPUT_FLAG_DIRECT)) { 99389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Divide capacity by 2 to take expansion into account 99489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project toWrite = audioBuffer.size>>1; 99589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // 8 to 16 bit conversion 99689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project int count = toWrite; 99789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project int16_t *dst = (int16_t *)(audioBuffer.i8); 99889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project while(count--) { 99989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project *dst++ = (int16_t)(*src++^0x80) << 8; 100089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 10013302526f6276911b2dc40c731ea7fa0e7972d908Eric Laurent } else { 100289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project toWrite = audioBuffer.size; 100389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project memcpy(audioBuffer.i8, src, toWrite); 100489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project src += toWrite; 100589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 100689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project userSize -= toWrite; 100789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project written += toWrite; 100889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 100989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project releaseBuffer(&audioBuffer); 101033797ea64d067dfeaacbfd7ebe7f3383b73961b5Eric Laurent } while (userSize >= frameSz); 101189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 101289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return written; 101389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 101489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 101589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project// ------------------------------------------------------------------------- 101689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 101789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectbool AudioTrack::processAudioBuffer(const sp<AudioTrackThread>& thread) 101889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 101989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project Buffer audioBuffer; 102089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t frames; 102189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project size_t writtenSize; 102289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 10231703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mLock.lock(); 10241703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent // acquire a strong reference on the IMemory and IAudioTrack so that they cannot be destroyed 10251703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent // while we are accessing the cblk 10261703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent sp <IAudioTrack> audioTrack = mAudioTrack; 10271703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent sp <IMemory> iMem = mCblkMemory; 10281703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent audio_track_cblk_t* cblk = mCblk; 10291703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mLock.unlock(); 10301703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 103189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Manage underrun callback 103238ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent if (mActive && (cblk->framesAvailable() == cblk->frameCount)) { 10331703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent LOGV("Underrun user: %x, server: %x, flags %04x", cblk->user, cblk->server, cblk->flags); 103438ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent if (!(android_atomic_or(CBLK_UNDERRUN_ON, &cblk->flags) & CBLK_UNDERRUN_MSK)) { 103589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mCbf(EVENT_UNDERRUN, mUserData, 0); 10361703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent if (cblk->server == cblk->frameCount) { 1037c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent mCbf(EVENT_BUFFER_END, mUserData, 0); 103889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 103989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (mSharedBuffer != 0) return false; 104089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 104189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 1042c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 104389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Manage loop end callback 10441703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent while (mLoopCount > cblk->loopCount) { 104589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project int loopCount = -1; 104689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mLoopCount--; 104789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (mLoopCount >= 0) loopCount = mLoopCount; 104889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 104989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mCbf(EVENT_LOOP_END, mUserData, (void *)&loopCount); 105089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 105189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 105289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Manage marker callback 10532c22aeb65e801f663a754d043062f85e49f77739Jean-Michel Trivi if (!mMarkerReached && (mMarkerPosition > 0)) { 10541703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent if (cblk->server >= mMarkerPosition) { 105589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mCbf(EVENT_MARKER, mUserData, (void *)&mMarkerPosition); 10562c22aeb65e801f663a754d043062f85e49f77739Jean-Michel Trivi mMarkerReached = true; 105789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 105889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 105989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 106089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Manage new position callback 1061c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent if (mUpdatePeriod > 0) { 10621703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent while (cblk->server >= mNewPosition) { 106389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mCbf(EVENT_NEW_POS, mUserData, (void *)&mNewPosition); 106489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mNewPosition += mUpdatePeriod; 106589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 106689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 106789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 106889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // If Shared buffer is used, no data is requested from client. 106989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (mSharedBuffer != 0) { 107089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project frames = 0; 107189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } else { 107289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project frames = mRemainingFrames; 107389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 107489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 107589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project do { 107689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 107789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project audioBuffer.frameCount = frames; 1078c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 1079c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // Calling obtainBuffer() with a wait count of 1 1080c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // limits wait time to WAIT_PERIOD_MS. This prevents from being 1081c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // stuck here not being able to handle timed events (position, markers, loops). 108289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project status_t err = obtainBuffer(&audioBuffer, 1); 108389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (err < NO_ERROR) { 108489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (err != TIMED_OUT) { 10851dd70b9f04961a06fcb73a97fca10a53b3245d3cEric Laurent LOGE_IF(err != status_t(NO_MORE_BUFFERS), "Error obtaining an audio buffer, giving up."); 108689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return false; 108789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 108889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project break; 108989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 109089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (err == status_t(STOPPED)) return false; 109189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 109289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Divide buffer size by 2 to take into account the expansion 109389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // due to 8 to 16 bit conversion: the callback must fill only half 109489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // of the destination buffer 1095fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin if (mFormat == AUDIO_FORMAT_PCM_8_BIT && !(mFlags & AUDIO_POLICY_OUTPUT_FLAG_DIRECT)) { 109689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project audioBuffer.size >>= 1; 109789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 109889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 109989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project size_t reqSize = audioBuffer.size; 110089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mCbf(EVENT_MORE_DATA, mUserData, &audioBuffer); 110189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project writtenSize = audioBuffer.size; 110289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 110389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Sanity check on returned size 11048555d0867c3e8fe6cc5c7ad40af557fe6b92fa72The Android Open Source Project if (ssize_t(writtenSize) <= 0) { 11058555d0867c3e8fe6cc5c7ad40af557fe6b92fa72The Android Open Source Project // The callback is done filling buffers 11068555d0867c3e8fe6cc5c7ad40af557fe6b92fa72The Android Open Source Project // Keep this thread going to handle timed events and 11078555d0867c3e8fe6cc5c7ad40af557fe6b92fa72The Android Open Source Project // still try to get more data in intervals of WAIT_PERIOD_MS 11088555d0867c3e8fe6cc5c7ad40af557fe6b92fa72The Android Open Source Project // but don't just loop and block the CPU, so wait 11098555d0867c3e8fe6cc5c7ad40af557fe6b92fa72The Android Open Source Project usleep(WAIT_PERIOD_MS*1000); 11108555d0867c3e8fe6cc5c7ad40af557fe6b92fa72The Android Open Source Project break; 11118555d0867c3e8fe6cc5c7ad40af557fe6b92fa72The Android Open Source Project } 111289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (writtenSize > reqSize) writtenSize = reqSize; 111389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1114fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin if (mFormat == AUDIO_FORMAT_PCM_8_BIT && !(mFlags & AUDIO_POLICY_OUTPUT_FLAG_DIRECT)) { 111589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // 8 to 16 bit conversion 111689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project const int8_t *src = audioBuffer.i8 + writtenSize-1; 111789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project int count = writtenSize; 111889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project int16_t *dst = audioBuffer.i16 + writtenSize-1; 111989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project while(count--) { 112089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project *dst-- = (int16_t)(*src--^0x80) << 8; 112189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 112289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project writtenSize <<= 1; 112389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 112489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 112589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project audioBuffer.size = writtenSize; 1126c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // NOTE: mCblk->frameSize is not equal to AudioTrack::frameSize() for 1127c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // 8 bit PCM data: in this case, mCblk->frameSize is based on a sampel size of 1128c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // 16 bit. 1129c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent audioBuffer.frameCount = writtenSize/mCblk->frameSize; 1130c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 113189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project frames -= audioBuffer.frameCount; 113289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 113389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project releaseBuffer(&audioBuffer); 113489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 113589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project while (frames); 113689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 113789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (frames == 0) { 1138d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent mRemainingFrames = mNotificationFramesAct; 113989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } else { 114089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mRemainingFrames = frames; 114189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 114289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return true; 114389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 114489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 11451703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent// must be called with mLock and cblk.lock held. Callers must also hold strong references on 11461703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent// the IAudioTrack and IMemory in case they are recreated here. 11471703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent// If the IAudioTrack is successfully restored, the cblk pointer is updated 11481703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurentstatus_t AudioTrack::restoreTrack_l(audio_track_cblk_t*& cblk, bool fromStart) 11491703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent{ 11501703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent status_t result; 11511703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 115238ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent if (!(android_atomic_or(CBLK_RESTORING_ON, &cblk->flags) & CBLK_RESTORING_MSK)) { 11531703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent LOGW("dead IAudioTrack, creating a new one from %s", 11541703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent fromStart ? "start()" : "obtainBuffer()"); 11551703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 11561703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent // signal old cblk condition so that other threads waiting for available buffers stop 11571703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent // waiting now 11581703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->cv.broadcast(); 11591703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->lock.unlock(); 11601703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 11611703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent // if the new IAudioTrack is created, createTrack_l() will modify the 11621703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent // following member variables: mAudioTrack, mCblkMemory and mCblk. 11631703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent // It will also delete the strong references on previous IAudioTrack and IMemory 11641703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent result = createTrack_l(mStreamType, 11651703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->sampleRate, 11661703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mFormat, 11671703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mChannelCount, 11681703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mFrameCount, 11691703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mFlags, 11701703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mSharedBuffer, 11711703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent getOutput_l(), 11721703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent false); 11731703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 11741703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent if (result == NO_ERROR) { 11759b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent // restore write index and set other indexes to reflect empty buffer status 11769b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent mCblk->user = cblk->user; 11779b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent mCblk->server = cblk->user; 11789b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent mCblk->userBase = cblk->user; 11799b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent mCblk->serverBase = cblk->user; 11809b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent // restore loop: this is not guaranteed to succeed if new frame count is not 11819b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent // compatible with loop length 11829b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent setLoop_l(cblk->loopStart, cblk->loopEnd, cblk->loopCount); 11831703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent if (!fromStart) { 11841703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mCblk->bufferTimeoutMs = MAX_RUN_TIMEOUT_MS; 11851703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } 11869b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent if (mActive) { 11879b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent result = mAudioTrack->start(); 11889b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent } 11891703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent if (fromStart && result == NO_ERROR) { 11901703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mNewPosition = mCblk->server + mUpdatePeriod; 11911703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } 11921703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } 11931703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent if (result != NO_ERROR) { 11941703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mActive = false; 11951703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } 11961703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 11971703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent // signal old cblk condition for other threads waiting for restore completion 119838ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent android_atomic_or(CBLK_RESTORED_ON, &cblk->flags); 11991703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->cv.broadcast(); 12001703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } else { 12011703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent if (!(cblk->flags & CBLK_RESTORED_MSK)) { 12021703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent LOGW("dead IAudioTrack, waiting for a new one"); 12031703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mLock.unlock(); 12041703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent result = cblk->cv.waitRelative(cblk->lock, milliseconds(RESTORE_TIMEOUT_MS)); 12051703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->lock.unlock(); 12061703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mLock.lock(); 12071703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } else { 12081703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent LOGW("dead IAudioTrack, already restored"); 12091703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent result = NO_ERROR; 12101703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->lock.unlock(); 12111703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } 12121703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent if (result != NO_ERROR || mActive == 0) { 12131703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent result = status_t(STOPPED); 12141703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } 12151703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } 12161703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent LOGV("restoreTrack_l() status %d mActive %d cblk %p, old cblk %p flags %08x old flags %08x", 12171703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent result, mActive, mCblk, cblk, mCblk->flags, cblk->flags); 12181703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 12191703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent if (result == NO_ERROR) { 12201703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent // from now on we switch to the newly created cblk 12211703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk = mCblk; 12221703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } 12231703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->lock.lock(); 12241703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 12251703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent LOGW_IF(result != NO_ERROR, "restoreTrack_l() error %d", result); 12261703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 12271703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent return result; 12281703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent} 12291703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 123089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectstatus_t AudioTrack::dump(int fd, const Vector<String16>& args) const 123189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 123289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 123389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project const size_t SIZE = 256; 123489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project char buffer[SIZE]; 123589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project String8 result; 123689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 123789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project result.append(" AudioTrack::dump\n"); 123889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project snprintf(buffer, 255, " stream type(%d), left - right volume(%f, %f)\n", mStreamType, mVolume[0], mVolume[1]); 123989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project result.append(buffer); 1240d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent snprintf(buffer, 255, " format(%d), channel count(%d), frame count(%d)\n", mFormat, mChannelCount, mCblk->frameCount); 124189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project result.append(buffer); 1242573266210fb2b2e7d86fbd46d0dfe16763611d91Eric Laurent snprintf(buffer, 255, " sample rate(%d), status(%d), muted(%d)\n", (mCblk == 0) ? 0 : mCblk->sampleRate, mStatus, mMuted); 124389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project result.append(buffer); 124489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project snprintf(buffer, 255, " active(%d), latency (%d)\n", mActive, mLatency); 124589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project result.append(buffer); 124689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project ::write(fd, result.string(), result.size()); 124789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_ERROR; 124889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 124989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 125089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project// ========================================================================= 125189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 125289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source ProjectAudioTrack::AudioTrackThread::AudioTrackThread(AudioTrack& receiver, bool bCanCallJava) 125389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project : Thread(bCanCallJava), mReceiver(receiver) 125489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 125589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 125689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 125789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectbool AudioTrack::AudioTrackThread::threadLoop() 125889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 125989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return mReceiver.processAudioBuffer(this); 126089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 126189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 126289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectstatus_t AudioTrack::AudioTrackThread::readyToRun() 126389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 126489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_ERROR; 126589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 126689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 126789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectvoid AudioTrack::AudioTrackThread::onFirstRef() 126889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 126989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 127089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 127189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project// ========================================================================= 127289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 127338ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent 127489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectaudio_track_cblk_t::audio_track_cblk_t() 127554b1a0550411c2fd2084d82d28934d505c37349aMathias Agopian : lock(Mutex::SHARED), cv(Condition::SHARED), user(0), server(0), 127654b1a0550411c2fd2084d82d28934d505c37349aMathias Agopian userBase(0), serverBase(0), buffers(0), frameCount(0), 127754b1a0550411c2fd2084d82d28934d505c37349aMathias Agopian loopStart(UINT_MAX), loopEnd(UINT_MAX), loopCount(0), volumeLR(0), 127838ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent sendLevel(0), flags(0) 127989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 128089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 128189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 128289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectuint32_t audio_track_cblk_t::stepUser(uint32_t frameCount) 128389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 128489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t u = this->user; 128589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 128689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project u += frameCount; 128789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Ensure that user is never ahead of server for AudioRecord 1288d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent if (flags & CBLK_DIRECTION_MSK) { 128989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // If stepServer() has been called once, switch to normal obtainBuffer() timeout period 129089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (bufferTimeoutMs == MAX_STARTUP_TIMEOUT_MS-1) { 129189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project bufferTimeoutMs = MAX_RUN_TIMEOUT_MS; 129289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 129389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } else if (u > this->server) { 129489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project LOGW("stepServer occured after track reset"); 129589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project u = this->server; 129689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 129789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 129889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (u >= userBase + this->frameCount) { 129989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project userBase += this->frameCount; 130089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 130189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 130289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project this->user = u; 130389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 130489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Clear flow control error condition as new data has been written/read to/from buffer. 130533797ea64d067dfeaacbfd7ebe7f3383b73961b5Eric Laurent if (flags & CBLK_UNDERRUN_MSK) { 130638ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent android_atomic_and(~CBLK_UNDERRUN_MSK, &flags); 130733797ea64d067dfeaacbfd7ebe7f3383b73961b5Eric Laurent } 130889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 130989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return u; 131089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 131189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 131289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectbool audio_track_cblk_t::stepServer(uint32_t frameCount) 131389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 131438ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent if (!tryLock()) { 131538ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent LOGW("stepServer() could not lock cblk"); 131689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return false; 131789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 131889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 131989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t s = this->server; 132089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 132189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project s += frameCount; 1322d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent if (flags & CBLK_DIRECTION_MSK) { 132389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Mark that we have read the first buffer so that next time stepUser() is called 132489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // we switch to normal obtainBuffer() timeout period 132589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (bufferTimeoutMs == MAX_STARTUP_TIMEOUT_MS) { 132634f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent bufferTimeoutMs = MAX_STARTUP_TIMEOUT_MS - 1; 1327c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent } 132889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // It is possible that we receive a flush() 132989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // while the mixer is processing a block: in this case, 133089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // stepServer() is called After the flush() has reset u & s and 133189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // we have s > u 133289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (s > this->user) { 133389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project LOGW("stepServer occured after track reset"); 133489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project s = this->user; 133589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 133689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 133789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 133889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (s >= loopEnd) { 133989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project LOGW_IF(s > loopEnd, "stepServer: s %u > loopEnd %u", s, loopEnd); 134089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project s = loopStart; 134189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (--loopCount == 0) { 134289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project loopEnd = UINT_MAX; 134389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project loopStart = UINT_MAX; 134489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 134589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 134689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (s >= serverBase + this->frameCount) { 134789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project serverBase += this->frameCount; 134889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 134989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 135089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project this->server = s; 135189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 13521703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent if (!(flags & CBLK_INVALID_MSK)) { 13531703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cv.signal(); 13541703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } 135589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project lock.unlock(); 135689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return true; 135789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 135889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 135989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectvoid* audio_track_cblk_t::buffer(uint32_t offset) const 136089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 1361c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent return (int8_t *)this->buffers + (offset - userBase) * this->frameSize; 136289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 136389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 136489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectuint32_t audio_track_cblk_t::framesAvailable() 136589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 136689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project Mutex::Autolock _l(lock); 136789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return framesAvailable_l(); 136889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 136989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 137089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectuint32_t audio_track_cblk_t::framesAvailable_l() 137189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 137289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t u = this->user; 137389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t s = this->server; 137489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1375d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent if (flags & CBLK_DIRECTION_MSK) { 137689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t limit = (s < loopStart) ? s : loopStart; 137789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return limit + frameCount - u; 137889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } else { 137989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return frameCount + u - s; 138089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 138189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 138289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 138389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectuint32_t audio_track_cblk_t::framesReady() 138489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 138589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t u = this->user; 138689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t s = this->server; 138789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1388d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent if (flags & CBLK_DIRECTION_MSK) { 138989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (u < loopEnd) { 139089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return u - s; 139189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } else { 139238ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent // do not block on mutex shared with client on AudioFlinger side 139338ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent if (!tryLock()) { 139438ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent LOGW("framesReady() could not lock cblk"); 139538ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent return 0; 139638ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent } 139738ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent uint32_t frames = UINT_MAX; 139889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (loopCount >= 0) { 139938ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent frames = (loopEnd - loopStart)*loopCount + u - s; 140089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 140138ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent lock.unlock(); 140238ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent return frames; 140389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 140489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } else { 140589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return s - u; 140689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 140789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 140889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 140938ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurentbool audio_track_cblk_t::tryLock() 141038ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent{ 141138ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent // the code below simulates lock-with-timeout 141238ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent // we MUST do this to protect the AudioFlinger server 141338ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent // as this lock is shared with the client. 141438ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent status_t err; 141538ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent 141638ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent err = lock.tryLock(); 141738ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent if (err == -EBUSY) { // just wait a bit 141838ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent usleep(1000); 141938ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent err = lock.tryLock(); 142038ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent } 142138ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent if (err != NO_ERROR) { 142238ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent // probably, the client just died. 142338ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent return false; 142438ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent } 142538ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent return true; 142638ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent} 142738ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent 142889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project// ------------------------------------------------------------------------- 142989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 143089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project}; // namespace android 143189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1432