AudioTrack.cpp revision 4bae3649d504d590a546717a8e49f96a30d9a745
199e53b86eebb605b70dd7591b89bf61a9414ed0eGlenn Kasten/* 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> 41f6b1678f8f508b447155a81b44e214475ab634a8Glenn Kasten#include <cutils/compiler.h> 42fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin 4364760240f931714858a59c1579f07264d7182ba2Dima Zavin#include <system/audio.h> 447394a4f358fa9908a9f0a7c954b65c399f4268e6Dima Zavin#include <system/audio_policy.h> 45fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin 46511754b5839fd9b09fc56b89ae007fbc39084a33Glenn Kasten#include <audio_utils/primitives.h> 47511754b5839fd9b09fc56b89ae007fbc39084a33Glenn Kasten 4889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectnamespace android { 4933005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh// --------------------------------------------------------------------------- 5033005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh 5133005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh// static 5233005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yehstatus_t AudioTrack::getMinFrameCount( 53e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten size_t* frameCount, 54fff6d715a8db0daf08a50634f242c40268de3d49Glenn Kasten audio_stream_type_t streamType, 5533005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh uint32_t sampleRate) 5633005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh{ 57d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten if (frameCount == NULL) { 58d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten return BAD_VALUE; 59d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten } 6004cd0186305e2b59d23c9147787046c6662029ccGlenn Kasten 6104cd0186305e2b59d23c9147787046c6662029ccGlenn Kasten // default to 0 in case of error 6204cd0186305e2b59d23c9147787046c6662029ccGlenn Kasten *frameCount = 0; 6304cd0186305e2b59d23c9147787046c6662029ccGlenn Kasten 64e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten // FIXME merge with similar code in createTrack_l(), except we're missing 65e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten // some information here that is available in createTrack_l(): 66e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten // audio_io_handle_t output 67e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten // audio_format_t format 68e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten // audio_channel_mask_t channelMask 69e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten // audio_output_flags_t flags 703b16c766d1ae2cfd8487e8ffb2b23936fc0a8e17Glenn Kasten uint32_t afSampleRate; 7133005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh if (AudioSystem::getOutputSamplingRate(&afSampleRate, streamType) != NO_ERROR) { 7233005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh return NO_INIT; 7333005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh } 74e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten size_t afFrameCount; 7533005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh if (AudioSystem::getOutputFrameCount(&afFrameCount, streamType) != NO_ERROR) { 7633005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh return NO_INIT; 7733005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh } 7833005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh uint32_t afLatency; 7933005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh if (AudioSystem::getOutputLatency(&afLatency, streamType) != NO_ERROR) { 8033005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh return NO_INIT; 8133005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh } 8233005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh 8333005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh // Ensure that buffer depth covers at least audio hardware latency 8433005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh uint32_t minBufCount = afLatency / ((1000 * afFrameCount) / afSampleRate); 8533005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh if (minBufCount < 2) minBufCount = 2; 8633005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh 8733005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh *frameCount = (sampleRate == 0) ? afFrameCount * minBufCount : 88e53b9ead781c36e96d6b6f012ddffc93a3d80f0dGlenn Kasten afFrameCount * minBufCount * sampleRate / afSampleRate; 893acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten ALOGV("getMinFrameCount=%d: afFrameCount=%d, minBufCount=%d, afSampleRate=%d, afLatency=%d", 903acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten *frameCount, afFrameCount, minBufCount, afSampleRate, afLatency); 9133005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh return NO_ERROR; 9233005a932c60a0780fe9b7307d5988df3d9f6c26Chia-chi Yeh} 9389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 9489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project// --------------------------------------------------------------------------- 9589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 9689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source ProjectAudioTrack::AudioTrack() 97879135196fd1c97deefc538c888037c56c2879a7Glenn Kasten : mStatus(NO_INIT), 984ff14bae91075eb274eb1c2975982358946e7e63John Grossman mIsTimed(false), 994ff14bae91075eb274eb1c2975982358946e7e63John Grossman mPreviousPriority(ANDROID_PRIORITY_NORMAL), 100a636433cbd09c0708b85f337ef45c0cdef3bcb4dGlenn Kasten mPreviousSchedulingGroup(SP_DEFAULT) 10189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 10289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 10389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 10489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source ProjectAudioTrack::AudioTrack( 105fff6d715a8db0daf08a50634f242c40268de3d49Glenn Kasten audio_stream_type_t streamType, 10689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t sampleRate, 107e1c3962e268ffc12bfd1bd9ea84da1f135f36960Glenn Kasten audio_format_t format, 10828b76b334f92a15a2be3cc9e2f7d229a3275d1acGlenn Kasten audio_channel_mask_t channelMask, 10989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project int frameCount, 1100ca3cf94c0dfc173ad7886ae162c4b67067539f6Eric Laurent audio_output_flags_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) 115879135196fd1c97deefc538c888037c56c2879a7Glenn Kasten : mStatus(NO_INIT), 1164ff14bae91075eb274eb1c2975982358946e7e63John Grossman mIsTimed(false), 1174ff14bae91075eb274eb1c2975982358946e7e63John Grossman mPreviousPriority(ANDROID_PRIORITY_NORMAL), 118a636433cbd09c0708b85f337ef45c0cdef3bcb4dGlenn Kasten mPreviousSchedulingGroup(SP_DEFAULT) 11989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 1200d255b2d9061ba31f13ada3fc0f7e51916407176Jean-Michel Trivi mStatus = set(streamType, sampleRate, format, channelMask, 121a514bdb58b5de4986679f72b7204b4764f7a2778Eric Laurent frameCount, flags, cbf, user, notificationFrames, 12217a736c3e1d062d7fc916329eb32aef8935614afGlenn Kasten 0 /*sharedBuffer*/, false /*threadCanCallJava*/, sessionId); 12389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 12489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 125c813985abd8ba61e999b3505f6a332574f87a1beAndreas HuberAudioTrack::AudioTrack( 126fff6d715a8db0daf08a50634f242c40268de3d49Glenn Kasten audio_stream_type_t streamType, 12789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t sampleRate, 128e1c3962e268ffc12bfd1bd9ea84da1f135f36960Glenn Kasten audio_format_t format, 12928b76b334f92a15a2be3cc9e2f7d229a3275d1acGlenn Kasten audio_channel_mask_t channelMask, 13089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project const sp<IMemory>& sharedBuffer, 1310ca3cf94c0dfc173ad7886ae162c4b67067539f6Eric Laurent audio_output_flags_t flags, 13289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project callback_t cbf, 13389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project void* user, 134be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent int notificationFrames, 135be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent int sessionId) 136879135196fd1c97deefc538c888037c56c2879a7Glenn Kasten : mStatus(NO_INIT), 1374ff14bae91075eb274eb1c2975982358946e7e63John Grossman mIsTimed(false), 1384ff14bae91075eb274eb1c2975982358946e7e63John Grossman mPreviousPriority(ANDROID_PRIORITY_NORMAL), 139a636433cbd09c0708b85f337ef45c0cdef3bcb4dGlenn Kasten mPreviousSchedulingGroup(SP_DEFAULT) 14089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 1410d255b2d9061ba31f13ada3fc0f7e51916407176Jean-Michel Trivi mStatus = set(streamType, sampleRate, format, channelMask, 14217a736c3e1d062d7fc916329eb32aef8935614afGlenn Kasten 0 /*frameCount*/, flags, cbf, user, notificationFrames, 14317a736c3e1d062d7fc916329eb32aef8935614afGlenn Kasten sharedBuffer, false /*threadCanCallJava*/, sessionId); 14489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 14589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 14689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source ProjectAudioTrack::~AudioTrack() 14789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 1483856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV_IF(mSharedBuffer != 0, "Destructor sharedBuffer: %p", mSharedBuffer->pointer()); 14989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 15089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (mStatus == NO_ERROR) { 15189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Make sure that callback function exits in the case where 15289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // it is looping on buffer full condition in obtainBuffer(). 15389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Otherwise the callback thread will never exit. 15489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project stop(); 15589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (mAudioTrackThread != 0) { 1563acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten mAudioTrackThread->requestExit(); // see comment in AudioTrack.h 15789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mAudioTrackThread->requestExitAndWait(); 15889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mAudioTrackThread.clear(); 15989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 16089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mAudioTrack.clear(); 16189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project IPCThreadState::self()->flushCommands(); 1623a34befc6fb04a4945a849e8bda8b84e4bf973feMarco Nelissen AudioSystem::releaseAudioSessionId(mSessionId); 16389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 16489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 16589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 16689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectstatus_t AudioTrack::set( 167fff6d715a8db0daf08a50634f242c40268de3d49Glenn Kasten audio_stream_type_t streamType, 16889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t sampleRate, 169e1c3962e268ffc12bfd1bd9ea84da1f135f36960Glenn Kasten audio_format_t format, 17028b76b334f92a15a2be3cc9e2f7d229a3275d1acGlenn Kasten audio_channel_mask_t channelMask, 171e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten int frameCountInt, 1720ca3cf94c0dfc173ad7886ae162c4b67067539f6Eric Laurent audio_output_flags_t flags, 17389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project callback_t cbf, 17489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project void* user, 17589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project int notificationFrames, 17689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project const sp<IMemory>& sharedBuffer, 177be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent bool threadCanCallJava, 178be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent int sessionId) 17989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 180e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten // FIXME "int" here is legacy and will be replaced by size_t later 181e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten if (frameCountInt < 0) { 182e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten ALOGE("Invalid frame count %d", frameCountInt); 183e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten return BAD_VALUE; 184e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten } 185e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten size_t frameCount = frameCountInt; 18689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 18785ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten ALOGV_IF(sharedBuffer != 0, "sharedBuffer: %p, size: %d", sharedBuffer->pointer(), 18885ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten sharedBuffer->size()); 18989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 190e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten ALOGV("set() streamType %d frameCount %u flags %04x", streamType, frameCount, flags); 1911a9ed11a472493cac7f6dfcbfac2064526a493edEric Laurent 1921703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 1931dd70b9f04961a06fcb73a97fca10a53b3245d3cEric Laurent if (mAudioTrack != 0) { 19429357bc2c0dd7c43ad3bd0c8e3efa4e6fd9bfd47Steve Block ALOGE("Track already in use"); 19589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return INVALID_OPERATION; 19689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 19789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 19889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // handle default values first. 199fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin if (streamType == AUDIO_STREAM_DEFAULT) { 200fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin streamType = AUDIO_STREAM_MUSIC; 20189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 202ea7939a079b3600cab955760839b021326f8cfc3Glenn Kasten 20389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (sampleRate == 0) { 2043b16c766d1ae2cfd8487e8ffb2b23936fc0a8e17Glenn Kasten uint32_t afSampleRate; 205e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten if (AudioSystem::getOutputSamplingRate(&afSampleRate, streamType) != NO_ERROR) { 206e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten return NO_INIT; 207e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten } 20889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project sampleRate = afSampleRate; 20989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 210ea7939a079b3600cab955760839b021326f8cfc3Glenn Kasten 21189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // these below should probably come from the audioFlinger too... 212e1c3962e268ffc12bfd1bd9ea84da1f135f36960Glenn Kasten if (format == AUDIO_FORMAT_DEFAULT) { 213fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin format = AUDIO_FORMAT_PCM_16_BIT; 21489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 2150d255b2d9061ba31f13ada3fc0f7e51916407176Jean-Michel Trivi if (channelMask == 0) { 2160d255b2d9061ba31f13ada3fc0f7e51916407176Jean-Michel Trivi channelMask = AUDIO_CHANNEL_OUT_STEREO; 21789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 21889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 21989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // validate parameters 220fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin if (!audio_is_valid_format(format)) { 22129357bc2c0dd7c43ad3bd0c8e3efa4e6fd9bfd47Steve Block ALOGE("Invalid format"); 22289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return BAD_VALUE; 22389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 224c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 225e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten // AudioFlinger does not currently support 8-bit data in shared memory 226e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten if (format == AUDIO_FORMAT_PCM_8_BIT && sharedBuffer != 0) { 227e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten ALOGE("8-bit data in shared memory is not supported"); 228e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten return BAD_VALUE; 229e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten } 230e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten 231c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // force direct flag if format is not linear PCM 232fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin if (!audio_is_linear_pcm(format)) { 2330ca3cf94c0dfc173ad7886ae162c4b67067539f6Eric Laurent flags = (audio_output_flags_t) 2343acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten // FIXME why can't we allow direct AND fast? 2350ca3cf94c0dfc173ad7886ae162c4b67067539f6Eric Laurent ((flags | AUDIO_OUTPUT_FLAG_DIRECT) & ~AUDIO_OUTPUT_FLAG_FAST); 236c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent } 2371948eb3ea6eee336e8cdab9b0c693f93f5f19993Eric Laurent // only allow deep buffering for music stream type 2381948eb3ea6eee336e8cdab9b0c693f93f5f19993Eric Laurent if (streamType != AUDIO_STREAM_MUSIC) { 2391948eb3ea6eee336e8cdab9b0c693f93f5f19993Eric Laurent flags = (audio_output_flags_t)(flags &~AUDIO_OUTPUT_FLAG_DEEP_BUFFER); 2401948eb3ea6eee336e8cdab9b0c693f93f5f19993Eric Laurent } 241c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 2420d255b2d9061ba31f13ada3fc0f7e51916407176Jean-Michel Trivi if (!audio_is_output_channel(channelMask)) { 24328b76b334f92a15a2be3cc9e2f7d229a3275d1acGlenn Kasten ALOGE("Invalid channel mask %#x", channelMask); 24489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return BAD_VALUE; 24589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 246a42ff007a17d63df22c60dd5e5fd811ee45ca1b3Glenn Kasten mChannelMask = channelMask; 2470d255b2d9061ba31f13ada3fc0f7e51916407176Jean-Michel Trivi uint32_t channelCount = popcount(channelMask); 248a42ff007a17d63df22c60dd5e5fd811ee45ca1b3Glenn Kasten mChannelCount = channelCount; 24989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 250fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin audio_io_handle_t output = AudioSystem::getOutput( 251fff6d715a8db0daf08a50634f242c40268de3d49Glenn Kasten streamType, 252e1c3962e268ffc12bfd1bd9ea84da1f135f36960Glenn Kasten sampleRate, format, channelMask, 25318868c5db2f90309c6d11e5837822135e4a0c0faGlenn Kasten flags); 25489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 255c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent if (output == 0) { 25629357bc2c0dd7c43ad3bd0c8e3efa4e6fd9bfd47Steve Block ALOGE("Could not get audio output for stream type %d", streamType); 257c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent return BAD_VALUE; 25889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 25989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 26034f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent mVolume[LEFT] = 1.0f; 26134f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent mVolume[RIGHT] = 1.0f; 26205632a5fa4b88ca474294887fc92a9fcdf0e2352Glenn Kasten mSendLevel = 0.0f; 263d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent mFrameCount = frameCount; 264b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten mReqFrameCount = frameCount; 265d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent mNotificationFramesReq = notificationFrames; 266be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent mSessionId = sessionId; 2672beeb50b1bba9e92f6cacfeca37fe9fa9d36ead1Eric Laurent mAuxEffectId = 0; 268093000f7d11839b920e8dfaa42ed1d09f48e24b8Glenn Kasten mFlags = flags; 2694a4a0959bca78e03e3c3f486ba17829c28314d8cGlenn Kasten mCbf = cbf; 270be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent 271a997e7a7c5aa2fc7e95316218316f8b7b98786baGlenn Kasten if (cbf != NULL) { 272896adcd3ae6a1c7010e526327eff54e16179987bEric Laurent mAudioTrackThread = new AudioTrackThread(*this, threadCanCallJava); 273a997e7a7c5aa2fc7e95316218316f8b7b98786baGlenn Kasten mAudioTrackThread->run("AudioTrack", ANDROID_PRIORITY_AUDIO, 0 /*stack*/); 274a997e7a7c5aa2fc7e95316218316f8b7b98786baGlenn Kasten } 275a997e7a7c5aa2fc7e95316218316f8b7b98786baGlenn Kasten 27634f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent // create the IAudioTrack 2771703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent status_t status = createTrack_l(streamType, 2781703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent sampleRate, 279e1c3962e268ffc12bfd1bd9ea84da1f135f36960Glenn Kasten format, 2801703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent frameCount, 2811703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent flags, 2821703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent sharedBuffer, 283291f4d505aff81969e6666049d3cc3446f836af2Glenn Kasten output); 284a997e7a7c5aa2fc7e95316218316f8b7b98786baGlenn Kasten 28534f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent if (status != NO_ERROR) { 286a997e7a7c5aa2fc7e95316218316f8b7b98786baGlenn Kasten if (mAudioTrackThread != 0) { 287a997e7a7c5aa2fc7e95316218316f8b7b98786baGlenn Kasten mAudioTrackThread->requestExit(); 288a997e7a7c5aa2fc7e95316218316f8b7b98786baGlenn Kasten mAudioTrackThread.clear(); 289a997e7a7c5aa2fc7e95316218316f8b7b98786baGlenn Kasten } 29089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return status; 29189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 29234f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent 29389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mStatus = NO_ERROR; 29489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 29589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mStreamType = streamType; 296e1c3962e268ffc12bfd1bd9ea84da1f135f36960Glenn Kasten mFormat = format; 29783a0382dc17364567667a4e6135db43f5bd92efcGlenn Kasten 29883a0382dc17364567667a4e6135db43f5bd92efcGlenn Kasten if (audio_is_linear_pcm(format)) { 29983a0382dc17364567667a4e6135db43f5bd92efcGlenn Kasten mFrameSize = channelCount * audio_bytes_per_sample(format); 30083a0382dc17364567667a4e6135db43f5bd92efcGlenn Kasten mFrameSizeAF = channelCount * sizeof(int16_t); 30183a0382dc17364567667a4e6135db43f5bd92efcGlenn Kasten } else { 30283a0382dc17364567667a4e6135db43f5bd92efcGlenn Kasten mFrameSize = sizeof(uint8_t); 30383a0382dc17364567667a4e6135db43f5bd92efcGlenn Kasten mFrameSizeAF = sizeof(uint8_t); 30483a0382dc17364567667a4e6135db43f5bd92efcGlenn Kasten } 30583a0382dc17364567667a4e6135db43f5bd92efcGlenn Kasten 30689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mSharedBuffer = sharedBuffer; 3079a2aaf927e56a4b4acab23ef16b3f133a9f48a63Glenn Kasten mActive = false; 30889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mUserData = user; 30989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mLoopCount = 0; 31089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mMarkerPosition = 0; 3112c22aeb65e801f663a754d043062f85e49f77739Jean-Michel Trivi mMarkerReached = false; 31289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mNewPosition = 0; 31389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mUpdatePeriod = 0; 314cd07594333cbe8b2c86c6609cce01a74d6cc33f8Jean-Michel Trivi mFlushed = false; 3153a34befc6fb04a4945a849e8bda8b84e4bf973feMarco Nelissen AudioSystem::acquireAudioSessionId(mSessionId); 31689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_ERROR; 31789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 31889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 31989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project// ------------------------------------------------------------------------- 32089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 32189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectvoid AudioTrack::start() 32289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 32389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project sp<AudioTrackThread> t = mAudioTrackThread; 32489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 3253856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("start %p", this); 32689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 327f5aafb209d01ba2ab6cb55d1a12cfc653e2b4be0Eric Laurent AutoMutex lock(mLock); 3281703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent // acquire a strong reference on the IMemory and IAudioTrack so that they cannot be destroyed 3291703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent // while we are accessing the cblk 330e53b9ead781c36e96d6b6f012ddffc93a3d80f0dGlenn Kasten sp<IAudioTrack> audioTrack = mAudioTrack; 331e53b9ead781c36e96d6b6f012ddffc93a3d80f0dGlenn Kasten sp<IMemory> iMem = mCblkMemory; 3321703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent audio_track_cblk_t* cblk = mCblk; 3331703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 3349a2aaf927e56a4b4acab23ef16b3f133a9f48a63Glenn Kasten if (!mActive) { 335cd07594333cbe8b2c86c6609cce01a74d6cc33f8Jean-Michel Trivi mFlushed = false; 3369a2aaf927e56a4b4acab23ef16b3f133a9f48a63Glenn Kasten mActive = true; 3371703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mNewPosition = cblk->server + mUpdatePeriod; 33833797ea64d067dfeaacbfd7ebe7f3383b73961b5Eric Laurent cblk->lock.lock(); 3391703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->bufferTimeoutMs = MAX_STARTUP_TIMEOUT_MS; 3401703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->waitTimeMs = 0; 3419c5fdd83f9b9f49be35107971feb33528d60b945Glenn Kasten android_atomic_and(~CBLK_DISABLED, &cblk->flags); 3422b584244930c9de0e3bc46898a801e9ccb731900Eric Laurent if (t != 0) { 3433acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten t->resume(); 3442b584244930c9de0e3bc46898a801e9ccb731900Eric Laurent } else { 345879135196fd1c97deefc538c888037c56c2879a7Glenn Kasten mPreviousPriority = getpriority(PRIO_PROCESS, 0); 346a636433cbd09c0708b85f337ef45c0cdef3bcb4dGlenn Kasten get_sched_policy(0, &mPreviousSchedulingGroup); 347879135196fd1c97deefc538c888037c56c2879a7Glenn Kasten androidSetThreadPriority(0, ANDROID_PRIORITY_AUDIO); 3482b584244930c9de0e3bc46898a801e9ccb731900Eric Laurent } 3492b584244930c9de0e3bc46898a801e9ccb731900Eric Laurent 350d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten ALOGV("start %p before lock cblk %p", this, cblk); 351d3a9ff4b725de612bf0354c035ba8f8564dbc6e8Glenn Kasten status_t status = NO_ERROR; 3529c5fdd83f9b9f49be35107971feb33528d60b945Glenn Kasten if (!(cblk->flags & CBLK_INVALID)) { 3531703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->lock.unlock(); 3543acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten ALOGV("mAudioTrack->start()"); 3553acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten status = mAudioTrack->start(); 3561703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->lock.lock(); 3571703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent if (status == DEAD_OBJECT) { 3589c5fdd83f9b9f49be35107971feb33528d60b945Glenn Kasten android_atomic_or(CBLK_INVALID, &cblk->flags); 3596100d2d60517ff33ed8eb35d0b7ea63cde0831c9Eric Laurent } 3602b584244930c9de0e3bc46898a801e9ccb731900Eric Laurent } 3619c5fdd83f9b9f49be35107971feb33528d60b945Glenn Kasten if (cblk->flags & CBLK_INVALID) { 362d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten audio_track_cblk_t* temp = cblk; 36322eb4e239fbe9103568147d566d7482e480350b8Glenn Kasten status = restoreTrack_l(temp, true /*fromStart*/); 364d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten cblk = temp; 3651703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } 3661703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->lock.unlock(); 3672b584244930c9de0e3bc46898a801e9ccb731900Eric Laurent if (status != NO_ERROR) { 3683856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("start() failed"); 3699a2aaf927e56a4b4acab23ef16b3f133a9f48a63Glenn Kasten mActive = false; 37034f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent if (t != 0) { 3713acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten t->pause(); 37234f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent } else { 373879135196fd1c97deefc538c888037c56c2879a7Glenn Kasten setpriority(PRIO_PROCESS, 0, mPreviousPriority); 374a636433cbd09c0708b85f337ef45c0cdef3bcb4dGlenn Kasten set_sched_policy(0, mPreviousSchedulingGroup); 37534f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent } 37689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 37789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 37889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 37989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 38089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 38189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectvoid AudioTrack::stop() 38289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 38389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project sp<AudioTrackThread> t = mAudioTrackThread; 38489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 3853856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("stop %p", this); 38689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 387f5aafb209d01ba2ab6cb55d1a12cfc653e2b4be0Eric Laurent AutoMutex lock(mLock); 3889a2aaf927e56a4b4acab23ef16b3f133a9f48a63Glenn Kasten if (mActive) { 3899a2aaf927e56a4b4acab23ef16b3f133a9f48a63Glenn Kasten mActive = false; 3901dd70b9f04961a06fcb73a97fca10a53b3245d3cEric Laurent mCblk->cv.signal(); 39189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mAudioTrack->stop(); 39289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Cancel loops (If we are in the middle of a loop, playback 39389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // would not stop until loopCount reaches 0). 3941703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent setLoop_l(0, 0, 0); 3952c22aeb65e801f663a754d043062f85e49f77739Jean-Michel Trivi // the playback head position will reset to 0, so if a marker is set, we need 3962c22aeb65e801f663a754d043062f85e49f77739Jean-Michel Trivi // to activate it again 3972c22aeb65e801f663a754d043062f85e49f77739Jean-Michel Trivi mMarkerReached = false; 39889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Force flush if a shared buffer is used otherwise audioflinger 39989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // will not stop before end of buffer is reached. 4004bae3649d504d590a546717a8e49f96a30d9a745Glenn Kasten // It may be needed to make sure that we stop playback, likely in case looping is on. 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) { 4053acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten t->pause(); 40689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } else { 407879135196fd1c97deefc538c888037c56c2879a7Glenn Kasten setpriority(PRIO_PROCESS, 0, mPreviousPriority); 408a636433cbd09c0708b85f337ef45c0cdef3bcb4dGlenn Kasten set_sched_policy(0, mPreviousSchedulingGroup); 40989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 41089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 41189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 41289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 41389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 41489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectbool AudioTrack::stopped() const 41589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 4169a2aaf927e56a4b4acab23ef16b3f133a9f48a63Glenn Kasten AutoMutex lock(mLock); 4179a2aaf927e56a4b4acab23ef16b3f133a9f48a63Glenn Kasten return stopped_l(); 41889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 41989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 42089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectvoid AudioTrack::flush() 42189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 4221703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 4234bae3649d504d590a546717a8e49f96a30d9a745Glenn Kasten if (!mActive && mSharedBuffer == 0) { 4244bae3649d504d590a546717a8e49f96a30d9a745Glenn Kasten flush_l(); 4254bae3649d504d590a546717a8e49f96a30d9a745Glenn Kasten } 4261703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent} 4271703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 4281703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurentvoid AudioTrack::flush_l() 4291703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent{ 4303856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("flush"); 4314bae3649d504d590a546717a8e49f96a30d9a745Glenn Kasten ALOG_ASSERT(!mActive); 432c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 4332c22aeb65e801f663a754d043062f85e49f77739Jean-Michel Trivi // clear playback marker and periodic update counter 4342c22aeb65e801f663a754d043062f85e49f77739Jean-Michel Trivi mMarkerPosition = 0; 4352c22aeb65e801f663a754d043062f85e49f77739Jean-Michel Trivi mMarkerReached = false; 4362c22aeb65e801f663a754d043062f85e49f77739Jean-Michel Trivi mUpdatePeriod = 0; 437c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 4384bae3649d504d590a546717a8e49f96a30d9a745Glenn Kasten mFlushed = true; 4394bae3649d504d590a546717a8e49f96a30d9a745Glenn Kasten mAudioTrack->flush(); 4404bae3649d504d590a546717a8e49f96a30d9a745Glenn Kasten // Release AudioTrack callback thread in case it was waiting for new buffers 4414bae3649d504d590a546717a8e49f96a30d9a745Glenn Kasten // in AudioTrack::obtainBuffer() 4424bae3649d504d590a546717a8e49f96a30d9a745Glenn Kasten mCblk->cv.signal(); 44389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 44489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 44589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectvoid AudioTrack::pause() 44689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 4473856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("pause"); 448f5aafb209d01ba2ab6cb55d1a12cfc653e2b4be0Eric Laurent AutoMutex lock(mLock); 4499a2aaf927e56a4b4acab23ef16b3f133a9f48a63Glenn Kasten if (mActive) { 4509a2aaf927e56a4b4acab23ef16b3f133a9f48a63Glenn Kasten mActive = false; 451192cbbad773979a6fe3b5a0c223356de4fc3309cEric Laurent mCblk->cv.signal(); 45289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mAudioTrack->pause(); 45389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 45489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 45589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 456be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurentstatus_t AudioTrack::setVolume(float left, float right) 45789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 458f0c495012bad92230604a9a12a907812ec49ee8fGlenn Kasten if (left < 0.0f || left > 1.0f || right < 0.0f || right > 1.0f) { 459be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent return BAD_VALUE; 460be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent } 461be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent 4621703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 46389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mVolume[LEFT] = left; 46489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mVolume[RIGHT] = right; 46589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 46683d86538c4c479a9225c75ab27938e8f05abb9c8Glenn Kasten mCblk->setVolumeLR((uint32_t(uint16_t(right * 0x1000)) << 16) | uint16_t(left * 0x1000)); 467be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent 468be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent return NO_ERROR; 46989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 47089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 471b1c0993b215c5c3eebd1c6bafc22bba23d57a70bGlenn Kastenstatus_t AudioTrack::setVolume(float volume) 47289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 473b1c0993b215c5c3eebd1c6bafc22bba23d57a70bGlenn Kasten return setVolume(volume, volume); 474be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent} 475be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent 4762beeb50b1bba9e92f6cacfeca37fe9fa9d36ead1Eric Laurentstatus_t AudioTrack::setAuxEffectSendLevel(float level) 477be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent{ 4783856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("setAuxEffectSendLevel(%f)", level); 47905632a5fa4b88ca474294887fc92a9fcdf0e2352Glenn Kasten if (level < 0.0f || level > 1.0f) { 480be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent return BAD_VALUE; 481be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent } 4821703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 483be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent 484be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent mSendLevel = level; 485be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent 48605632a5fa4b88ca474294887fc92a9fcdf0e2352Glenn Kasten mCblk->setSendLevel(level); 487be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent 488be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent return NO_ERROR; 489be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent} 490be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent 491a5224f319e2ba4b51ddb4287705ccf8d4b8ecc51Glenn Kastenvoid AudioTrack::getAuxEffectSendLevel(float* level) const 492be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent{ 493be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent if (level != NULL) { 494be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent *level = mSendLevel; 495be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent } 49689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 49789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 4983b16c766d1ae2cfd8487e8ffb2b23936fc0a8e17Glenn Kastenstatus_t AudioTrack::setSampleRate(uint32_t rate) 49989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 5003b16c766d1ae2cfd8487e8ffb2b23936fc0a8e17Glenn Kasten uint32_t afSamplingRate; 50189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 5024ff14bae91075eb274eb1c2975982358946e7e63John Grossman if (mIsTimed) { 5034ff14bae91075eb274eb1c2975982358946e7e63John Grossman return INVALID_OPERATION; 5044ff14bae91075eb274eb1c2975982358946e7e63John Grossman } 5054ff14bae91075eb274eb1c2975982358946e7e63John Grossman 50689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (AudioSystem::getOutputSamplingRate(&afSamplingRate, mStreamType) != NO_ERROR) { 507573266210fb2b2e7d86fbd46d0dfe16763611d91Eric Laurent return NO_INIT; 50889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 50989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Resampler implementation limits input sampling rate to 2 x output sampling rate. 510d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten if (rate == 0 || rate > afSamplingRate*2 ) { 511d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten return BAD_VALUE; 512d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten } 51389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 5141703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 515573266210fb2b2e7d86fbd46d0dfe16763611d91Eric Laurent mCblk->sampleRate = rate; 516573266210fb2b2e7d86fbd46d0dfe16763611d91Eric Laurent return NO_ERROR; 51789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 51889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 519a5224f319e2ba4b51ddb4287705ccf8d4b8ecc51Glenn Kastenuint32_t AudioTrack::getSampleRate() const 52089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 5214ff14bae91075eb274eb1c2975982358946e7e63John Grossman if (mIsTimed) { 5223b16c766d1ae2cfd8487e8ffb2b23936fc0a8e17Glenn Kasten return 0; 5234ff14bae91075eb274eb1c2975982358946e7e63John Grossman } 5244ff14bae91075eb274eb1c2975982358946e7e63John Grossman 5251703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 526573266210fb2b2e7d86fbd46d0dfe16763611d91Eric Laurent return mCblk->sampleRate; 52789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 52889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 52989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectstatus_t AudioTrack::setLoop(uint32_t loopStart, uint32_t loopEnd, int loopCount) 53089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 5311703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 5321703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent return setLoop_l(loopStart, loopEnd, loopCount); 5331703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent} 5341703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 5351703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent// must be called with mLock held 5361703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurentstatus_t AudioTrack::setLoop_l(uint32_t loopStart, uint32_t loopEnd, int loopCount) 5371703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent{ 53889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project audio_track_cblk_t* cblk = mCblk; 53989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 54089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project Mutex::Autolock _l(cblk->lock); 54189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 54289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (loopCount == 0) { 54389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project cblk->loopStart = UINT_MAX; 54489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project cblk->loopEnd = UINT_MAX; 54589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project cblk->loopCount = 0; 54689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mLoopCount = 0; 54789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_ERROR; 54889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 54989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 5504ff14bae91075eb274eb1c2975982358946e7e63John Grossman if (mIsTimed) { 5514ff14bae91075eb274eb1c2975982358946e7e63John Grossman return INVALID_OPERATION; 5524ff14bae91075eb274eb1c2975982358946e7e63John Grossman } 5534ff14bae91075eb274eb1c2975982358946e7e63John Grossman 55489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (loopStart >= loopEnd || 555b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten loopEnd - loopStart > mFrameCount || 5569b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent cblk->server > loopStart) { 55785ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten ALOGE("setLoop invalid value: loopStart %d, loopEnd %d, loopCount %d, framecount %d, " 558b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten "user %d", loopStart, loopEnd, loopCount, mFrameCount, cblk->user); 55989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return BAD_VALUE; 56089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 56189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 562b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten if ((mSharedBuffer != 0) && (loopEnd > mFrameCount)) { 56385ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten ALOGE("setLoop invalid value: loop markers beyond data: loopStart %d, loopEnd %d, " 56485ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten "framecount %d", 565b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten loopStart, loopEnd, mFrameCount); 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::setMarkerPosition(uint32_t marker) 57889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 579d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten if (mCbf == NULL) { 580d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten return INVALID_OPERATION; 581d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten } 58289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 58389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mMarkerPosition = marker; 5842c22aeb65e801f663a754d043062f85e49f77739Jean-Michel Trivi mMarkerReached = false; 58589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 58689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_ERROR; 58789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 58889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 589a5224f319e2ba4b51ddb4287705ccf8d4b8ecc51Glenn Kastenstatus_t AudioTrack::getMarkerPosition(uint32_t *marker) const 59089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 591d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten if (marker == NULL) { 592d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten return BAD_VALUE; 593d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten } 59489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 59589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project *marker = mMarkerPosition; 59689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 59789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_ERROR; 59889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 59989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 60089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectstatus_t AudioTrack::setPositionUpdatePeriod(uint32_t updatePeriod) 60189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 602d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten if (mCbf == NULL) { 603d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten return INVALID_OPERATION; 604d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten } 60589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 60689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t curPosition; 60789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project getPosition(&curPosition); 60889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mNewPosition = curPosition + updatePeriod; 60989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mUpdatePeriod = updatePeriod; 61089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 61189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_ERROR; 61289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 61389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 614a5224f319e2ba4b51ddb4287705ccf8d4b8ecc51Glenn Kastenstatus_t AudioTrack::getPositionUpdatePeriod(uint32_t *updatePeriod) const 61589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 616d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten if (updatePeriod == NULL) { 617d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten return BAD_VALUE; 618d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten } 61989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 62089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project *updatePeriod = mUpdatePeriod; 62189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 62289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_ERROR; 62389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 62489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 62589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectstatus_t AudioTrack::setPosition(uint32_t position) 62689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 627d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten if (mIsTimed) { 628d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten return INVALID_OPERATION; 629d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten } 6304ff14bae91075eb274eb1c2975982358946e7e63John Grossman 6311703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 63289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 633d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten if (!stopped_l()) { 634d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten return INVALID_OPERATION; 635d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten } 6369a2aaf927e56a4b4acab23ef16b3f133a9f48a63Glenn Kasten 637d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten audio_track_cblk_t* cblk = mCblk; 638d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten Mutex::Autolock _l(cblk->lock); 63989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 640d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten if (position > cblk->user) { 641d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten return BAD_VALUE; 642d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten } 64389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 644d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten cblk->server = position; 645d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten android_atomic_or(CBLK_FORCEREADY, &cblk->flags); 646c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 64789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_ERROR; 64889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 64989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 65089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectstatus_t AudioTrack::getPosition(uint32_t *position) 65189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 652d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten if (position == NULL) { 653d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten return BAD_VALUE; 654d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten } 6551703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 656cd07594333cbe8b2c86c6609cce01a74d6cc33f8Jean-Michel Trivi *position = mFlushed ? 0 : 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 665d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten if (!stopped_l()) { 666d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten return INVALID_OPERATION; 667d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten } 668c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 6691703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent flush_l(); 67089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 671d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten audio_track_cblk_t* cblk = mCblk; 672b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten cblk->stepUserOut(mFrameCount, mFrameCount); 67389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 67489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_ERROR; 67589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 67689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 677c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurentaudio_io_handle_t AudioTrack::getOutput() 678c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent{ 6791703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 6801703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent return getOutput_l(); 6811703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent} 6821703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 6831703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent// must be called with mLock held 6841703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurentaudio_io_handle_t AudioTrack::getOutput_l() 6851703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent{ 686fff6d715a8db0daf08a50634f242c40268de3d49Glenn Kasten return AudioSystem::getOutput(mStreamType, 68718868c5db2f90309c6d11e5837822135e4a0c0faGlenn Kasten mCblk->sampleRate, mFormat, mChannelMask, mFlags); 688c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent} 689c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 690be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurentstatus_t AudioTrack::attachAuxEffect(int effectId) 691be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent{ 6923856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("attachAuxEffect(%d)", effectId); 6932beeb50b1bba9e92f6cacfeca37fe9fa9d36ead1Eric Laurent status_t status = mAudioTrack->attachAuxEffect(effectId); 6942beeb50b1bba9e92f6cacfeca37fe9fa9d36ead1Eric Laurent if (status == NO_ERROR) { 6952beeb50b1bba9e92f6cacfeca37fe9fa9d36ead1Eric Laurent mAuxEffectId = effectId; 6962beeb50b1bba9e92f6cacfeca37fe9fa9d36ead1Eric Laurent } 6972beeb50b1bba9e92f6cacfeca37fe9fa9d36ead1Eric Laurent return status; 698be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent} 699be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent 70089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project// ------------------------------------------------------------------------- 70189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 7021703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent// must be called with mLock held 7031703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurentstatus_t AudioTrack::createTrack_l( 704fff6d715a8db0daf08a50634f242c40268de3d49Glenn Kasten audio_stream_type_t streamType, 70534f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent uint32_t sampleRate, 706e1c3962e268ffc12bfd1bd9ea84da1f135f36960Glenn Kasten audio_format_t format, 707e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten size_t frameCount, 7080ca3cf94c0dfc173ad7886ae162c4b67067539f6Eric Laurent audio_output_flags_t flags, 70934f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent const sp<IMemory>& sharedBuffer, 710291f4d505aff81969e6666049d3cc3446f836af2Glenn Kasten audio_io_handle_t output) 71134f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent{ 71234f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent status_t status; 71334f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent const sp<IAudioFlinger>& audioFlinger = AudioSystem::get_audio_flinger(); 71434f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent if (audioFlinger == 0) { 715e53b9ead781c36e96d6b6f012ddffc93a3d80f0dGlenn Kasten ALOGE("Could not get audioflinger"); 716e53b9ead781c36e96d6b6f012ddffc93a3d80f0dGlenn Kasten return NO_INIT; 71734f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent } 71834f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent 719d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent uint32_t afLatency; 7201a9ed11a472493cac7f6dfcbfac2064526a493edEric Laurent if (AudioSystem::getLatency(output, streamType, &afLatency) != NO_ERROR) { 721d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent return NO_INIT; 722d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } 723d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent 7244a4a0959bca78e03e3c3f486ba17829c28314d8cGlenn Kasten // Client decides whether the track is TIMED (see below), but can only express a preference 7254a4a0959bca78e03e3c3f486ba17829c28314d8cGlenn Kasten // for FAST. Server will perform additional tests. 7260ca3cf94c0dfc173ad7886ae162c4b67067539f6Eric Laurent if ((flags & AUDIO_OUTPUT_FLAG_FAST) && !( 7274a4a0959bca78e03e3c3f486ba17829c28314d8cGlenn Kasten // either of these use cases: 7284a4a0959bca78e03e3c3f486ba17829c28314d8cGlenn Kasten // use case 1: shared buffer 7294a4a0959bca78e03e3c3f486ba17829c28314d8cGlenn Kasten (sharedBuffer != 0) || 7304a4a0959bca78e03e3c3f486ba17829c28314d8cGlenn Kasten // use case 2: callback handler 7314a4a0959bca78e03e3c3f486ba17829c28314d8cGlenn Kasten (mCbf != NULL))) { 7323acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten ALOGW("AUDIO_OUTPUT_FLAG_FAST denied by client"); 733093000f7d11839b920e8dfaa42ed1d09f48e24b8Glenn Kasten // once denied, do not request again if IAudioTrack is re-created 7340ca3cf94c0dfc173ad7886ae162c4b67067539f6Eric Laurent flags = (audio_output_flags_t) (flags & ~AUDIO_OUTPUT_FLAG_FAST); 735093000f7d11839b920e8dfaa42ed1d09f48e24b8Glenn Kasten mFlags = flags; 7364a4a0959bca78e03e3c3f486ba17829c28314d8cGlenn Kasten } 737e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten ALOGV("createTrack_l() output %d afLatency %d", output, afLatency); 7384a4a0959bca78e03e3c3f486ba17829c28314d8cGlenn Kasten 739d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent mNotificationFramesAct = mNotificationFramesReq; 740e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten 741fce7a473248381cc83a01855f92581077d3c9ee2Dima Zavin if (!audio_is_linear_pcm(format)) { 742e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten 743d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent if (sharedBuffer != 0) { 744e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten // Same comment as below about ignoring frameCount parameter for set() 745d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent frameCount = sharedBuffer->size(); 746e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten } else if (frameCount == 0) { 747e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten size_t afFrameCount; 748e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten if (AudioSystem::getFrameCount(output, streamType, &afFrameCount) != NO_ERROR) { 749e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten return NO_INIT; 750e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten } 751e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten frameCount = afFrameCount; 752d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } 753e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten 754e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten } else if (sharedBuffer != 0) { 755e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten 756a42ff007a17d63df22c60dd5e5fd811ee45ca1b3Glenn Kasten // Ensure that buffer alignment matches channel count 757e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten // 8-bit data in shared memory is not currently supported by AudioFlinger 758e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten size_t alignment = /* format == AUDIO_FORMAT_PCM_8_BIT ? 1 : */ 2; 759a42ff007a17d63df22c60dd5e5fd811ee45ca1b3Glenn Kasten if (mChannelCount > 1) { 760e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten // More than 2 channels does not require stronger alignment than stereo 761e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten alignment <<= 1; 762e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten } 763a42ff007a17d63df22c60dd5e5fd811ee45ca1b3Glenn Kasten if (((size_t)sharedBuffer->pointer() & (alignment - 1)) != 0) { 764a42ff007a17d63df22c60dd5e5fd811ee45ca1b3Glenn Kasten ALOGE("Invalid buffer alignment: address %p, channel count %u", 765a42ff007a17d63df22c60dd5e5fd811ee45ca1b3Glenn Kasten sharedBuffer->pointer(), mChannelCount); 766e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten return BAD_VALUE; 767e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten } 768e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten 769e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten // When initializing a shared buffer AudioTrack via constructors, 770e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten // there's no frameCount parameter. 771e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten // But when initializing a shared buffer AudioTrack via set(), 772e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten // there _is_ a frameCount parameter. We silently ignore it. 773a42ff007a17d63df22c60dd5e5fd811ee45ca1b3Glenn Kasten frameCount = sharedBuffer->size()/mChannelCount/sizeof(int16_t); 774e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten 775e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten } else if (!(flags & AUDIO_OUTPUT_FLAG_FAST)) { 776e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten 777e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten // FIXME move these calculations and associated checks to server 7783b16c766d1ae2cfd8487e8ffb2b23936fc0a8e17Glenn Kasten uint32_t afSampleRate; 779e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten if (AudioSystem::getSamplingRate(output, streamType, &afSampleRate) != NO_ERROR) { 780e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten return NO_INIT; 781e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten } 782e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten size_t afFrameCount; 783e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten if (AudioSystem::getFrameCount(output, streamType, &afFrameCount) != NO_ERROR) { 784e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten return NO_INIT; 785e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten } 786e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten 787d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent // Ensure that buffer depth covers at least audio hardware latency 788d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent uint32_t minBufCount = afLatency / ((1000 * afFrameCount)/afSampleRate); 789d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent if (minBufCount < 2) minBufCount = 2; 790d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent 791e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten size_t minFrameCount = (afFrameCount*sampleRate*minBufCount)/afSampleRate; 792e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten ALOGV("minFrameCount: %u, afFrameCount=%d, minBufCount=%d, sampleRate=%u, afSampleRate=%u" 7933acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten ", afLatency=%d", 7943acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten minFrameCount, afFrameCount, minBufCount, sampleRate, afSampleRate, afLatency); 795d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent 796e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten if (frameCount == 0) { 797e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten frameCount = minFrameCount; 798e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten } 799e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten if (mNotificationFramesAct == 0) { 800e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten mNotificationFramesAct = frameCount/2; 801e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten } 802e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten // Make sure that application is notified with sufficient margin 803e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten // before underrun 804e33054eb968cbf8ccaee1b0ff0301403902deed6Glenn Kasten if (mNotificationFramesAct > frameCount/2) { 805e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten mNotificationFramesAct = frameCount/2; 806d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } 807e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten if (frameCount < minFrameCount) { 808e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten // not ALOGW because it happens all the time when playing key clicks over A2DP 809e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten ALOGV("Minimum buffer size corrected from %d to %d", 810e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten frameCount, minFrameCount); 811e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten frameCount = minFrameCount; 812e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten } 813e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten 814e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten } else { 815e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten // For fast tracks, the frame count calculations and checks are done by server 816d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } 817d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent 818a075db4ff9b086ac2885df77bb6da0869293df92Glenn Kasten IAudioFlinger::track_flags_t trackFlags = IAudioFlinger::TRACK_DEFAULT; 819a075db4ff9b086ac2885df77bb6da0869293df92Glenn Kasten if (mIsTimed) { 820a075db4ff9b086ac2885df77bb6da0869293df92Glenn Kasten trackFlags |= IAudioFlinger::TRACK_TIMED; 821a075db4ff9b086ac2885df77bb6da0869293df92Glenn Kasten } 8223acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten 8233acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten pid_t tid = -1; 8240ca3cf94c0dfc173ad7886ae162c4b67067539f6Eric Laurent if (flags & AUDIO_OUTPUT_FLAG_FAST) { 8254a4a0959bca78e03e3c3f486ba17829c28314d8cGlenn Kasten trackFlags |= IAudioFlinger::TRACK_FAST; 8263acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten if (mAudioTrackThread != 0) { 8273acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten tid = mAudioTrackThread->getTid(); 8283acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten } 8294a4a0959bca78e03e3c3f486ba17829c28314d8cGlenn Kasten } 8304a4a0959bca78e03e3c3f486ba17829c28314d8cGlenn Kasten 83134f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent sp<IAudioTrack> track = audioFlinger->createTrack(getpid(), 83234f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent streamType, 83334f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent sampleRate, 83460a839204713e0f8258d082af83262b1eb33a6c3Glenn Kasten // AudioFlinger only sees 16-bit PCM 83560a839204713e0f8258d082af83262b1eb33a6c3Glenn Kasten format == AUDIO_FORMAT_PCM_8_BIT ? 83660a839204713e0f8258d082af83262b1eb33a6c3Glenn Kasten AUDIO_FORMAT_PCM_16_BIT : format, 837a42ff007a17d63df22c60dd5e5fd811ee45ca1b3Glenn Kasten mChannelMask, 83834f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent frameCount, 839e0b07179a48ee50fda931d2aa1b3c751d167e4d7Glenn Kasten &trackFlags, 84034f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent sharedBuffer, 84134f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent output, 8423acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten tid, 843be916aa1267e2e6b1c148f51d11bcbbc79cb864cEric Laurent &mSessionId, 84434f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent &status); 84534f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent 84634f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent if (track == 0) { 84729357bc2c0dd7c43ad3bd0c8e3efa4e6fd9bfd47Steve Block ALOGE("AudioFlinger could not create track, status: %d", status); 84834f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent return status; 84934f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent } 850d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten sp<IMemory> iMem = track->getCblk(); 851d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten if (iMem == 0) { 85229357bc2c0dd7c43ad3bd0c8e3efa4e6fd9bfd47Steve Block ALOGE("Could not get control block"); 85334f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent return NO_INIT; 85434f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent } 85534f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent mAudioTrack = track; 856d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten mCblkMemory = iMem; 857d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten audio_track_cblk_t* cblk = static_cast<audio_track_cblk_t*>(iMem->pointer()); 858d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten mCblk = cblk; 859b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten size_t temp = cblk->frameCount_; 860b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten if (temp < frameCount || (frameCount == 0 && temp == 0)) { 861b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten // In current design, AudioTrack client checks and ensures frame count validity before 862b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten // passing it to AudioFlinger so AudioFlinger should not return a different value except 863b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten // for fast track as it uses a special method of assigning frame count. 864b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten ALOGW("Requested frameCount %u but received frameCount %u", frameCount, temp); 865b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten } 866b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten frameCount = temp; 8673acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten if (flags & AUDIO_OUTPUT_FLAG_FAST) { 868e0b07179a48ee50fda931d2aa1b3c751d167e4d7Glenn Kasten if (trackFlags & IAudioFlinger::TRACK_FAST) { 869b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten ALOGV("AUDIO_OUTPUT_FLAG_FAST successful; frameCount %u", frameCount); 8703acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten } else { 871b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten ALOGV("AUDIO_OUTPUT_FLAG_FAST denied by server; frameCount %u", frameCount); 872093000f7d11839b920e8dfaa42ed1d09f48e24b8Glenn Kasten // once denied, do not request again if IAudioTrack is re-created 873093000f7d11839b920e8dfaa42ed1d09f48e24b8Glenn Kasten flags = (audio_output_flags_t) (flags & ~AUDIO_OUTPUT_FLAG_FAST); 874093000f7d11839b920e8dfaa42ed1d09f48e24b8Glenn Kasten mFlags = flags; 8753acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten } 876e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten if (sharedBuffer == 0) { 877b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten mNotificationFramesAct = frameCount/2; 878e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten } 8793acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten } 88034f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent if (sharedBuffer == 0) { 881b929e417853694e37aba1ef4399f188987b709d9Glenn Kasten mBuffers = (char*)cblk + sizeof(audio_track_cblk_t); 88234f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent } else { 883b929e417853694e37aba1ef4399f188987b709d9Glenn Kasten mBuffers = sharedBuffer->pointer(); 884e53b9ead781c36e96d6b6f012ddffc93a3d80f0dGlenn Kasten // Force buffer full condition as data is already present in shared memory 885b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten cblk->stepUserOut(frameCount, frameCount); 88634f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent } 88734f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent 888d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten cblk->setVolumeLR((uint32_t(uint16_t(mVolume[RIGHT] * 0x1000)) << 16) | 88985ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten uint16_t(mVolume[LEFT] * 0x1000)); 890d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten cblk->setSendLevel(mSendLevel); 8912beeb50b1bba9e92f6cacfeca37fe9fa9d36ead1Eric Laurent mAudioTrack->attachAuxEffect(mAuxEffectId); 892d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten cblk->bufferTimeoutMs = MAX_STARTUP_TIMEOUT_MS; 893d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten cblk->waitTimeMs = 0; 894d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent mRemainingFrames = mNotificationFramesAct; 895e0fa467e1150c65a7b1b1ed904c579b40f97c9dfGlenn Kasten // FIXME don't believe this lie 896b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten mLatency = afLatency + (1000*frameCount) / sampleRate; 897b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten mFrameCount = frameCount; 898093000f7d11839b920e8dfaa42ed1d09f48e24b8Glenn Kasten // If IAudioTrack is re-created, don't let the requested frameCount 899093000f7d11839b920e8dfaa42ed1d09f48e24b8Glenn Kasten // decrease. This can confuse clients that cache frameCount(). 900b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten if (frameCount > mReqFrameCount) { 901b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten mReqFrameCount = frameCount; 902093000f7d11839b920e8dfaa42ed1d09f48e24b8Glenn Kasten } 90334f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent return NO_ERROR; 90434f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent} 90534f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent 90689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectstatus_t AudioTrack::obtainBuffer(Buffer* audioBuffer, int32_t waitCount) 90789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 9081703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 9099a2aaf927e56a4b4acab23ef16b3f133a9f48a63Glenn Kasten bool active; 910d0965dde97f2815ae0a15fe6b40946f8a741a81eGlenn Kasten status_t result = NO_ERROR; 91189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project audio_track_cblk_t* cblk = mCblk; 91289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t framesReq = audioBuffer->frameCount; 9131dd70b9f04961a06fcb73a97fca10a53b3245d3cEric Laurent uint32_t waitTimeMs = (waitCount < 0) ? cblk->bufferTimeoutMs : WAIT_PERIOD_MS; 91489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 91589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project audioBuffer->frameCount = 0; 91689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project audioBuffer->size = 0; 91789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 918b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten uint32_t framesAvail = cblk->framesAvailableOut(mFrameCount); 91989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 9209b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent cblk->lock.lock(); 9219c5fdd83f9b9f49be35107971feb33528d60b945Glenn Kasten if (cblk->flags & CBLK_INVALID) { 9229b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent goto create_new_track; 9239b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent } 9249b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent cblk->lock.unlock(); 9259b7d950f1f3b0c526712b713dbceb0e22762c015Eric Laurent 92689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (framesAvail == 0) { 92734f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent cblk->lock.lock(); 92889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project goto start_loop_here; 92989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project while (framesAvail == 0) { 93089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project active = mActive; 931f6b1678f8f508b447155a81b44e214475ab634a8Glenn Kasten if (CC_UNLIKELY(!active)) { 9323856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("Not active and NO_MORE_BUFFERS"); 93334f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent cblk->lock.unlock(); 93489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_MORE_BUFFERS; 93589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 936f6b1678f8f508b447155a81b44e214475ab634a8Glenn Kasten if (CC_UNLIKELY(!waitCount)) { 93734f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent cblk->lock.unlock(); 93889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return WOULD_BLOCK; 93934f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent } 9409c5fdd83f9b9f49be35107971feb33528d60b945Glenn Kasten if (!(cblk->flags & CBLK_INVALID)) { 9411703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mLock.unlock(); 942a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // this condition is in shared memory, so if IAudioTrack and control block 943a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // are replaced due to mediaserver death or IAudioTrack invalidation then 944a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // cv won't be signalled, but fortunately the timeout will limit the wait 945d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent result = cblk->cv.waitRelative(cblk->lock, milliseconds(waitTimeMs)); 9461703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->lock.unlock(); 9471703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mLock.lock(); 9489a2aaf927e56a4b4acab23ef16b3f133a9f48a63Glenn Kasten if (!mActive) { 9491703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent return status_t(STOPPED); 9501703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } 951a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // IAudioTrack may have been re-created while mLock was unlocked 952a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten cblk = mCblk; 9531703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->lock.lock(); 954d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } 9551703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 9569c5fdd83f9b9f49be35107971feb33528d60b945Glenn Kasten if (cblk->flags & CBLK_INVALID) { 957d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent goto create_new_track; 958d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent } 959f6b1678f8f508b447155a81b44e214475ab634a8Glenn Kasten if (CC_UNLIKELY(result != NO_ERROR)) { 9601dd70b9f04961a06fcb73a97fca10a53b3245d3cEric Laurent cblk->waitTimeMs += waitTimeMs; 96189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (cblk->waitTimeMs >= cblk->bufferTimeoutMs) { 96289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // timing out when a loop has been set and we have already written upto loop end 96389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // is a normal condition: no need to wake AudioFlinger up. 96489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (cblk->user < cblk->loopEnd) { 96585ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten ALOGW("obtainBuffer timed out (is the CPU pegged?) %p name=%#x user=%08x, " 96685ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten "server=%08x", this, cblk->mName, cblk->user, cblk->server); 967c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent //unlock cblk mutex before calling mAudioTrack->start() (see issue #1617140) 96889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project cblk->lock.unlock(); 9693acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten result = mAudioTrack->start(); 9701703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->lock.lock(); 97134f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent if (result == DEAD_OBJECT) { 9729c5fdd83f9b9f49be35107971feb33528d60b945Glenn Kasten android_atomic_or(CBLK_INVALID, &cblk->flags); 973d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurentcreate_new_track: 974d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten audio_track_cblk_t* temp = cblk; 97522eb4e239fbe9103568147d566d7482e480350b8Glenn Kasten result = restoreTrack_l(temp, false /*fromStart*/); 976d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten cblk = temp; 9771703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } 9781703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent if (result != NO_ERROR) { 9795ff1dd576bb93c45b44088a51544a18fc43ebf58Steve Block ALOGW("obtainBuffer create Track error %d", result); 9801703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cblk->lock.unlock(); 9811703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent return result; 98234f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent } 98389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 98489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project cblk->waitTimeMs = 0; 98589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 986c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 98789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (--waitCount == 0) { 98834f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent cblk->lock.unlock(); 98989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return TIMED_OUT; 99089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 99189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 99289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // read the server count again 99389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project start_loop_here: 994b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten framesAvail = cblk->framesAvailableOut_l(mFrameCount); 99589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 99634f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent cblk->lock.unlock(); 99789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 99889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 99989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project cblk->waitTimeMs = 0; 1000c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 100189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (framesReq > framesAvail) { 100289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project framesReq = framesAvail; 100389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 100489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 100589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t u = cblk->user; 1006b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten uint32_t bufferEnd = cblk->userBase + mFrameCount; 100789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1008a1472d9883e35edd280201c8be3191695007dfd4Marco Nelissen if (framesReq > bufferEnd - u) { 100989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project framesReq = bufferEnd - u; 101089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 101189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1012c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent audioBuffer->frameCount = framesReq; 101383a0382dc17364567667a4e6135db43f5bd92efcGlenn Kasten audioBuffer->size = framesReq * mFrameSizeAF; 101483a0382dc17364567667a4e6135db43f5bd92efcGlenn Kasten audioBuffer->raw = cblk->buffer(mBuffers, mFrameSizeAF, u); 101589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project active = mActive; 101689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return active ? status_t(NO_ERROR) : status_t(STOPPED); 101789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 101889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 101989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectvoid AudioTrack::releaseBuffer(Buffer* audioBuffer) 102089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 10211703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent AutoMutex lock(mLock); 1022d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten audio_track_cblk_t* cblk = mCblk; 1023b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten cblk->stepUserOut(audioBuffer->frameCount, mFrameCount); 1024df839841d2db4cb8e2acb10205b3942622b3e7a2Eric Laurent if (audioBuffer->frameCount > 0) { 1025df839841d2db4cb8e2acb10205b3942622b3e7a2Eric Laurent // restart track if it was disabled by audioflinger due to previous underrun 1026d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten if (mActive && (cblk->flags & CBLK_DISABLED)) { 1027d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten android_atomic_and(~CBLK_DISABLED, &cblk->flags); 1028d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten ALOGW("releaseBuffer() track %p name=%#x disabled, restarting", this, cblk->mName); 1029df839841d2db4cb8e2acb10205b3942622b3e7a2Eric Laurent mAudioTrack->start(); 1030df839841d2db4cb8e2acb10205b3942622b3e7a2Eric Laurent } 1031df839841d2db4cb8e2acb10205b3942622b3e7a2Eric Laurent } 103289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 103389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 103489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project// ------------------------------------------------------------------------- 103589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 103689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectssize_t AudioTrack::write(const void* buffer, size_t userSize) 103789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 103889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1039d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten if (mSharedBuffer != 0) { 1040d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten return INVALID_OPERATION; 1041d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten } 1042d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten if (mIsTimed) { 1043d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten return INVALID_OPERATION; 1044d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten } 104589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 104689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (ssize_t(userSize) < 0) { 104799e53b86eebb605b70dd7591b89bf61a9414ed0eGlenn Kasten // Sanity-check: user is most-likely passing an error code, and it would 104899e53b86eebb605b70dd7591b89bf61a9414ed0eGlenn Kasten // make the return value ambiguous (actualSize vs error). 104929357bc2c0dd7c43ad3bd0c8e3efa4e6fd9bfd47Steve Block ALOGE("AudioTrack::write(buffer=%p, size=%u (%d)", 105089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project buffer, userSize, userSize); 105189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return BAD_VALUE; 105289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 105389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 10543856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("write %p: %d bytes, mActive=%d", this, userSize, mActive); 105589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1056df839841d2db4cb8e2acb10205b3942622b3e7a2Eric Laurent if (userSize == 0) { 1057df839841d2db4cb8e2acb10205b3942622b3e7a2Eric Laurent return 0; 1058df839841d2db4cb8e2acb10205b3942622b3e7a2Eric Laurent } 1059df839841d2db4cb8e2acb10205b3942622b3e7a2Eric Laurent 10601703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent // acquire a strong reference on the IMemory and IAudioTrack so that they cannot be destroyed 10611703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent // while we are accessing the cblk 10621703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mLock.lock(); 1063e53b9ead781c36e96d6b6f012ddffc93a3d80f0dGlenn Kasten sp<IAudioTrack> audioTrack = mAudioTrack; 1064e53b9ead781c36e96d6b6f012ddffc93a3d80f0dGlenn Kasten sp<IMemory> iMem = mCblkMemory; 10651703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mLock.unlock(); 10661703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 1067a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // since mLock is unlocked the IAudioTrack and shared memory may be re-created, 1068a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // so all cblk references might still refer to old shared memory, but that should be benign 1069a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten 107089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project ssize_t written = 0; 107189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project const int8_t *src = (const int8_t *)buffer; 107289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project Buffer audioBuffer; 1073b9980659501d0428d65d8292f3c32da69d37fbd2Glenn Kasten size_t frameSz = frameSize(); 107489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 107589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project do { 107633797ea64d067dfeaacbfd7ebe7f3383b73961b5Eric Laurent audioBuffer.frameCount = userSize/frameSz; 1077c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 107889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project status_t err = obtainBuffer(&audioBuffer, -1); 107989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (err < 0) { 108089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // out of buffers, return #bytes written 1081d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten if (err == status_t(NO_MORE_BUFFERS)) { 108289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project break; 1083d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten } 108489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return ssize_t(err); 108589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 108689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 108789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project size_t toWrite; 1088c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 10890ca3cf94c0dfc173ad7886ae162c4b67067539f6Eric Laurent if (mFormat == AUDIO_FORMAT_PCM_8_BIT && !(mFlags & AUDIO_OUTPUT_FLAG_DIRECT)) { 109089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Divide capacity by 2 to take expansion into account 109189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project toWrite = audioBuffer.size>>1; 1092511754b5839fd9b09fc56b89ae007fbc39084a33Glenn Kasten memcpy_to_i16_from_u8(audioBuffer.i16, (const uint8_t *) src, toWrite); 10933302526f6276911b2dc40c731ea7fa0e7972d908Eric Laurent } else { 109489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project toWrite = audioBuffer.size; 109589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project memcpy(audioBuffer.i8, src, toWrite); 109689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 1097bc0f6b92bba33ca9c2e76f2a520d290f055da6b2Glenn Kasten src += toWrite; 109889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project userSize -= toWrite; 109989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project written += toWrite; 110089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 110189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project releaseBuffer(&audioBuffer); 110233797ea64d067dfeaacbfd7ebe7f3383b73961b5Eric Laurent } while (userSize >= frameSz); 110389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 110489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return written; 110589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 110689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 110789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project// ------------------------------------------------------------------------- 110889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 11094ff14bae91075eb274eb1c2975982358946e7e63John GrossmanTimedAudioTrack::TimedAudioTrack() { 11104ff14bae91075eb274eb1c2975982358946e7e63John Grossman mIsTimed = true; 11114ff14bae91075eb274eb1c2975982358946e7e63John Grossman} 11124ff14bae91075eb274eb1c2975982358946e7e63John Grossman 11134ff14bae91075eb274eb1c2975982358946e7e63John Grossmanstatus_t TimedAudioTrack::allocateTimedBuffer(size_t size, sp<IMemory>* buffer) 11144ff14bae91075eb274eb1c2975982358946e7e63John Grossman{ 1115d5ed6e88a9bea1879e41d7defaf1edea7c09f554Glenn Kasten AutoMutex lock(mLock); 11164ff14bae91075eb274eb1c2975982358946e7e63John Grossman status_t result = UNKNOWN_ERROR; 11174ff14bae91075eb274eb1c2975982358946e7e63John Grossman 1118d5ed6e88a9bea1879e41d7defaf1edea7c09f554Glenn Kasten // acquire a strong reference on the IMemory and IAudioTrack so that they cannot be destroyed 1119d5ed6e88a9bea1879e41d7defaf1edea7c09f554Glenn Kasten // while we are accessing the cblk 1120d5ed6e88a9bea1879e41d7defaf1edea7c09f554Glenn Kasten sp<IAudioTrack> audioTrack = mAudioTrack; 1121d5ed6e88a9bea1879e41d7defaf1edea7c09f554Glenn Kasten sp<IMemory> iMem = mCblkMemory; 1122d5ed6e88a9bea1879e41d7defaf1edea7c09f554Glenn Kasten 11234ff14bae91075eb274eb1c2975982358946e7e63John Grossman // If the track is not invalid already, try to allocate a buffer. alloc 11244ff14bae91075eb274eb1c2975982358946e7e63John Grossman // fails indicating that the server is dead, flag the track as invalid so 1125c3ae93f21280859086ae371428ffd32f39e76d50Glenn Kasten // we can attempt to restore in just a bit. 1126d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten audio_track_cblk_t* cblk = mCblk; 1127d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten if (!(cblk->flags & CBLK_INVALID)) { 11284ff14bae91075eb274eb1c2975982358946e7e63John Grossman result = mAudioTrack->allocateTimedBuffer(size, buffer); 11294ff14bae91075eb274eb1c2975982358946e7e63John Grossman if (result == DEAD_OBJECT) { 1130d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten android_atomic_or(CBLK_INVALID, &cblk->flags); 11314ff14bae91075eb274eb1c2975982358946e7e63John Grossman } 11324ff14bae91075eb274eb1c2975982358946e7e63John Grossman } 11334ff14bae91075eb274eb1c2975982358946e7e63John Grossman 11344ff14bae91075eb274eb1c2975982358946e7e63John Grossman // If the track is invalid at this point, attempt to restore it. and try the 11354ff14bae91075eb274eb1c2975982358946e7e63John Grossman // allocation one more time. 1136d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten if (cblk->flags & CBLK_INVALID) { 1137d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten cblk->lock.lock(); 1138d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten audio_track_cblk_t* temp = cblk; 113922eb4e239fbe9103568147d566d7482e480350b8Glenn Kasten result = restoreTrack_l(temp, false /*fromStart*/); 1140d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten cblk = temp; 1141d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten cblk->lock.unlock(); 11424ff14bae91075eb274eb1c2975982358946e7e63John Grossman 1143d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten if (result == OK) { 11444ff14bae91075eb274eb1c2975982358946e7e63John Grossman result = mAudioTrack->allocateTimedBuffer(size, buffer); 1145d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten } 11464ff14bae91075eb274eb1c2975982358946e7e63John Grossman } 11474ff14bae91075eb274eb1c2975982358946e7e63John Grossman 11484ff14bae91075eb274eb1c2975982358946e7e63John Grossman return result; 11494ff14bae91075eb274eb1c2975982358946e7e63John Grossman} 11504ff14bae91075eb274eb1c2975982358946e7e63John Grossman 11514ff14bae91075eb274eb1c2975982358946e7e63John Grossmanstatus_t TimedAudioTrack::queueTimedBuffer(const sp<IMemory>& buffer, 11524ff14bae91075eb274eb1c2975982358946e7e63John Grossman int64_t pts) 11534ff14bae91075eb274eb1c2975982358946e7e63John Grossman{ 1154df839841d2db4cb8e2acb10205b3942622b3e7a2Eric Laurent status_t status = mAudioTrack->queueTimedBuffer(buffer, pts); 1155df839841d2db4cb8e2acb10205b3942622b3e7a2Eric Laurent { 1156df839841d2db4cb8e2acb10205b3942622b3e7a2Eric Laurent AutoMutex lock(mLock); 1157d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten audio_track_cblk_t* cblk = mCblk; 1158df839841d2db4cb8e2acb10205b3942622b3e7a2Eric Laurent // restart track if it was disabled by audioflinger due to previous underrun 1159df839841d2db4cb8e2acb10205b3942622b3e7a2Eric Laurent if (buffer->size() != 0 && status == NO_ERROR && 1160d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten mActive && (cblk->flags & CBLK_DISABLED)) { 1161d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten android_atomic_and(~CBLK_DISABLED, &cblk->flags); 1162df839841d2db4cb8e2acb10205b3942622b3e7a2Eric Laurent ALOGW("queueTimedBuffer() track %p disabled, restarting", this); 1163df839841d2db4cb8e2acb10205b3942622b3e7a2Eric Laurent mAudioTrack->start(); 1164df839841d2db4cb8e2acb10205b3942622b3e7a2Eric Laurent } 11654ff14bae91075eb274eb1c2975982358946e7e63John Grossman } 1166df839841d2db4cb8e2acb10205b3942622b3e7a2Eric Laurent return status; 11674ff14bae91075eb274eb1c2975982358946e7e63John Grossman} 11684ff14bae91075eb274eb1c2975982358946e7e63John Grossman 11694ff14bae91075eb274eb1c2975982358946e7e63John Grossmanstatus_t TimedAudioTrack::setMediaTimeTransform(const LinearTransform& xform, 11704ff14bae91075eb274eb1c2975982358946e7e63John Grossman TargetTimeline target) 11714ff14bae91075eb274eb1c2975982358946e7e63John Grossman{ 11724ff14bae91075eb274eb1c2975982358946e7e63John Grossman return mAudioTrack->setMediaTimeTransform(xform, target); 11734ff14bae91075eb274eb1c2975982358946e7e63John Grossman} 11744ff14bae91075eb274eb1c2975982358946e7e63John Grossman 11754ff14bae91075eb274eb1c2975982358946e7e63John Grossman// ------------------------------------------------------------------------- 11764ff14bae91075eb274eb1c2975982358946e7e63John Grossman 117789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectbool AudioTrack::processAudioBuffer(const sp<AudioTrackThread>& thread) 117889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 117989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project Buffer audioBuffer; 118089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t frames; 118189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project size_t writtenSize; 118289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 11831703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mLock.lock(); 11841703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent // acquire a strong reference on the IMemory and IAudioTrack so that they cannot be destroyed 11851703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent // while we are accessing the cblk 1186e53b9ead781c36e96d6b6f012ddffc93a3d80f0dGlenn Kasten sp<IAudioTrack> audioTrack = mAudioTrack; 1187e53b9ead781c36e96d6b6f012ddffc93a3d80f0dGlenn Kasten sp<IMemory> iMem = mCblkMemory; 11881703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent audio_track_cblk_t* cblk = mCblk; 11899a2aaf927e56a4b4acab23ef16b3f133a9f48a63Glenn Kasten bool active = mActive; 11901703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent mLock.unlock(); 11911703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 1192a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // since mLock is unlocked the IAudioTrack and shared memory may be re-created, 1193a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // so all cblk references might still refer to old shared memory, but that should be benign 1194a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten 119589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Manage underrun callback 1196b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten if (active && (cblk->framesAvailableOut(mFrameCount) == mFrameCount)) { 11973856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("Underrun user: %x, server: %x, flags %04x", cblk->user, cblk->server, cblk->flags); 11989c5fdd83f9b9f49be35107971feb33528d60b945Glenn Kasten if (!(android_atomic_or(CBLK_UNDERRUN, &cblk->flags) & CBLK_UNDERRUN)) { 119989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mCbf(EVENT_UNDERRUN, mUserData, 0); 1200b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten if (cblk->server == mFrameCount) { 1201c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent mCbf(EVENT_BUFFER_END, mUserData, 0); 120289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 1203d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten if (mSharedBuffer != 0) { 1204d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten return false; 1205d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten } 120689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 120789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 1208c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 120989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Manage loop end callback 12101703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent while (mLoopCount > cblk->loopCount) { 121189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project int loopCount = -1; 121289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mLoopCount--; 121389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (mLoopCount >= 0) loopCount = mLoopCount; 121489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 121589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mCbf(EVENT_LOOP_END, mUserData, (void *)&loopCount); 121689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 121789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 121889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Manage marker callback 12192c22aeb65e801f663a754d043062f85e49f77739Jean-Michel Trivi if (!mMarkerReached && (mMarkerPosition > 0)) { 12201703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent if (cblk->server >= mMarkerPosition) { 122189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mCbf(EVENT_MARKER, mUserData, (void *)&mMarkerPosition); 12222c22aeb65e801f663a754d043062f85e49f77739Jean-Michel Trivi mMarkerReached = true; 122389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 122489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 122589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 122689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Manage new position callback 1227c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent if (mUpdatePeriod > 0) { 12281703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent while (cblk->server >= mNewPosition) { 122989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mCbf(EVENT_NEW_POS, mUserData, (void *)&mNewPosition); 123089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mNewPosition += mUpdatePeriod; 123189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 123289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 123389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 123489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // If Shared buffer is used, no data is requested from client. 123589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (mSharedBuffer != 0) { 123689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project frames = 0; 123789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } else { 123889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project frames = mRemainingFrames; 123989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 124089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 124199e53b86eebb605b70dd7591b89bf61a9414ed0eGlenn Kasten // See description of waitCount parameter at declaration of obtainBuffer(). 124299e53b86eebb605b70dd7591b89bf61a9414ed0eGlenn Kasten // The logic below prevents us from being stuck below at obtainBuffer() 124399e53b86eebb605b70dd7591b89bf61a9414ed0eGlenn Kasten // not being able to handle timed events (position, markers, loops). 12442267ba18d0d2b2d4bd7f5411821ad89ac2659a88Eric Laurent int32_t waitCount = -1; 12452267ba18d0d2b2d4bd7f5411821ad89ac2659a88Eric Laurent if (mUpdatePeriod || (!mMarkerReached && mMarkerPosition) || mLoopCount) { 12462267ba18d0d2b2d4bd7f5411821ad89ac2659a88Eric Laurent waitCount = 1; 12472267ba18d0d2b2d4bd7f5411821ad89ac2659a88Eric Laurent } 12482267ba18d0d2b2d4bd7f5411821ad89ac2659a88Eric Laurent 124989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project do { 125089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 125189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project audioBuffer.frameCount = frames; 1252c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 12532267ba18d0d2b2d4bd7f5411821ad89ac2659a88Eric Laurent status_t err = obtainBuffer(&audioBuffer, waitCount); 125489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (err < NO_ERROR) { 125589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (err != TIMED_OUT) { 125685ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten ALOGE_IF(err != status_t(NO_MORE_BUFFERS), 125785ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten "Error obtaining an audio buffer, giving up."); 125889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return false; 125989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 126089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project break; 126189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 1262d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten if (err == status_t(STOPPED)) { 1263d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten return false; 1264d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten } 126589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 126689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Divide buffer size by 2 to take into account the expansion 126789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // due to 8 to 16 bit conversion: the callback must fill only half 126889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // of the destination buffer 12690ca3cf94c0dfc173ad7886ae162c4b67067539f6Eric Laurent if (mFormat == AUDIO_FORMAT_PCM_8_BIT && !(mFlags & AUDIO_OUTPUT_FLAG_DIRECT)) { 127089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project audioBuffer.size >>= 1; 127189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 127289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 127389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project size_t reqSize = audioBuffer.size; 127489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mCbf(EVENT_MORE_DATA, mUserData, &audioBuffer); 127589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project writtenSize = audioBuffer.size; 127689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 127789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Sanity check on returned size 12788555d0867c3e8fe6cc5c7ad40af557fe6b92fa72The Android Open Source Project if (ssize_t(writtenSize) <= 0) { 12798555d0867c3e8fe6cc5c7ad40af557fe6b92fa72The Android Open Source Project // The callback is done filling buffers 12808555d0867c3e8fe6cc5c7ad40af557fe6b92fa72The Android Open Source Project // Keep this thread going to handle timed events and 12818555d0867c3e8fe6cc5c7ad40af557fe6b92fa72The Android Open Source Project // still try to get more data in intervals of WAIT_PERIOD_MS 12828555d0867c3e8fe6cc5c7ad40af557fe6b92fa72The Android Open Source Project // but don't just loop and block the CPU, so wait 12838555d0867c3e8fe6cc5c7ad40af557fe6b92fa72The Android Open Source Project usleep(WAIT_PERIOD_MS*1000); 12848555d0867c3e8fe6cc5c7ad40af557fe6b92fa72The Android Open Source Project break; 12858555d0867c3e8fe6cc5c7ad40af557fe6b92fa72The Android Open Source Project } 1286df839841d2db4cb8e2acb10205b3942622b3e7a2Eric Laurent 1287d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten if (writtenSize > reqSize) { 1288d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten writtenSize = reqSize; 1289d65d73c4ae74d084751b417615a78cbe7a51372aGlenn Kasten } 129089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 12910ca3cf94c0dfc173ad7886ae162c4b67067539f6Eric Laurent if (mFormat == AUDIO_FORMAT_PCM_8_BIT && !(mFlags & AUDIO_OUTPUT_FLAG_DIRECT)) { 1292511754b5839fd9b09fc56b89ae007fbc39084a33Glenn Kasten // 8 to 16 bit conversion, note that source and destination are the same address 1293511754b5839fd9b09fc56b89ae007fbc39084a33Glenn Kasten memcpy_to_i16_from_u8(audioBuffer.i16, (const uint8_t *) audioBuffer.i8, writtenSize); 129489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project writtenSize <<= 1; 129589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 129689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 129789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project audioBuffer.size = writtenSize; 1298d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten // NOTE: cblk->frameSize is not equal to AudioTrack::frameSize() for 1299d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten // 8 bit PCM data: in this case, cblk->frameSize is based on a sample size of 1300c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent // 16 bit. 130183a0382dc17364567667a4e6135db43f5bd92efcGlenn Kasten audioBuffer.frameCount = writtenSize / mFrameSizeAF; 1302c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent 130389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project frames -= audioBuffer.frameCount; 130489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 130589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project releaseBuffer(&audioBuffer); 130689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 130789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project while (frames); 130889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 130989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (frames == 0) { 1310d1b449aad6c087a69f5ec66b7facb2845b73f1cbEric Laurent mRemainingFrames = mNotificationFramesAct; 131189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } else { 131289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project mRemainingFrames = frames; 131389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 131489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return true; 131589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 131689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1317d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten// must be called with mLock and refCblk.lock held. Callers must also hold strong references on 13181703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent// the IAudioTrack and IMemory in case they are recreated here. 1319d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten// If the IAudioTrack is successfully restored, the refCblk pointer is updated 1320d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten// FIXME Don't depend on caller to hold strong references. 1321d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kastenstatus_t AudioTrack::restoreTrack_l(audio_track_cblk_t*& refCblk, bool fromStart) 13221703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent{ 13231703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent status_t result; 13241703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 1325d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten audio_track_cblk_t* cblk = refCblk; 1326d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten audio_track_cblk_t* newCblk = cblk; 1327827e5f1237757aee78b677efcf0f7c44fd0dd3d8Glenn Kasten ALOGW("dead IAudioTrack, creating a new one from %s", 1328827e5f1237757aee78b677efcf0f7c44fd0dd3d8Glenn Kasten fromStart ? "start()" : "obtainBuffer()"); 13291703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 1330a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // signal old cblk condition so that other threads waiting for available buffers stop 1331a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // waiting now 1332a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten cblk->cv.broadcast(); 1333a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten cblk->lock.unlock(); 13341703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 1335a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // refresh the audio configuration cache in this process to make sure we get new 1336a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // output parameters in getOutput_l() and createTrack_l() 1337a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten AudioSystem::clearAudioConfigCache(); 1338a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten 1339a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // if the new IAudioTrack is created, createTrack_l() will modify the 1340a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // following member variables: mAudioTrack, mCblkMemory and mCblk. 1341a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // It will also delete the strong references on previous IAudioTrack and IMemory 1342a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten result = createTrack_l(mStreamType, 1343a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten cblk->sampleRate, 1344a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten mFormat, 1345b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten mReqFrameCount, // so that frame count never goes down 1346a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten mFlags, 1347a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten mSharedBuffer, 1348a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten getOutput_l()); 1349a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten 1350a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten if (result == NO_ERROR) { 1351a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten uint32_t user = cblk->user; 1352a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten uint32_t server = cblk->server; 1353a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // restore write index and set other indexes to reflect empty buffer status 1354a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten newCblk = mCblk; 1355a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten newCblk->user = user; 1356a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten newCblk->server = user; 1357a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten newCblk->userBase = user; 1358a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten newCblk->serverBase = user; 1359a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // restore loop: this is not guaranteed to succeed if new frame count is not 1360a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // compatible with loop length 1361a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten setLoop_l(cblk->loopStart, cblk->loopEnd, cblk->loopCount); 1362a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten if (!fromStart) { 1363a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten newCblk->bufferTimeoutMs = MAX_RUN_TIMEOUT_MS; 1364a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // Make sure that a client relying on callback events indicating underrun or 1365a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // the actual amount of audio frames played (e.g SoundPool) receives them. 1366a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten if (mSharedBuffer == 0) { 1367a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten uint32_t frames = 0; 1368a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten if (user > server) { 1369b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten frames = ((user - server) > mFrameCount) ? 1370b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten mFrameCount : (user - server); 137183a0382dc17364567667a4e6135db43f5bd92efcGlenn Kasten memset(mBuffers, 0, frames * mFrameSizeAF); 1372408b8dc3c0a364c6f6b4991d15da9e6bcc2b8008Eric Laurent } 1373a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // restart playback even if buffer is not completely filled. 1374a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten android_atomic_or(CBLK_FORCEREADY, &newCblk->flags); 1375a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // stepUser() clears CBLK_UNDERRUN flag enabling underrun callbacks to 1376a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten // the client 1377b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten newCblk->stepUserOut(frames, mFrameCount); 13781703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } 13791703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } 1380a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten if (mSharedBuffer != 0) { 1381b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten newCblk->stepUserOut(mFrameCount, mFrameCount); 13821703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } 1383a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten if (mActive) { 1384a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten result = mAudioTrack->start(); 1385a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten ALOGW_IF(result != NO_ERROR, "restoreTrack_l() start() failed status %d", result); 1386a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten } 1387a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten if (fromStart && result == NO_ERROR) { 1388a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten mNewPosition = newCblk->server + mUpdatePeriod; 13891703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } 13901703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } 1391a47f3165f53c8e8fb8907a94de7417e2c3047eebGlenn Kasten ALOGW_IF(result != NO_ERROR, "restoreTrack_l() failed status %d", result); 13923856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("restoreTrack_l() status %d mActive %d cblk %p, old cblk %p flags %08x old flags %08x", 1393d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten result, mActive, newCblk, cblk, newCblk->flags, cblk->flags); 13941703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 13951703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent if (result == NO_ERROR) { 13961703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent // from now on we switch to the newly created cblk 1397d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten refCblk = newCblk; 13981703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } 1399d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten newCblk->lock.lock(); 14001703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 1401827e5f1237757aee78b677efcf0f7c44fd0dd3d8Glenn Kasten ALOGW_IF(result != NO_ERROR, "restoreTrack_l() error %d", result); 14021703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 14031703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent return result; 14041703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent} 14051703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent 140689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectstatus_t AudioTrack::dump(int fd, const Vector<String16>& args) const 140789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 140889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 140989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project const size_t SIZE = 256; 141089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project char buffer[SIZE]; 141189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project String8 result; 141289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1413d2c38fc4d5dc742d7441444316849510dd2b7363Glenn Kasten audio_track_cblk_t* cblk = mCblk; 141489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project result.append(" AudioTrack::dump\n"); 141585ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten snprintf(buffer, 255, " stream type(%d), left - right volume(%f, %f)\n", mStreamType, 141685ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten mVolume[0], mVolume[1]); 141789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project result.append(buffer); 141885ab62c4b433df3f1a9826bed1c9bec07a86c750Glenn Kasten snprintf(buffer, 255, " format(%d), channel count(%d), frame count(%d)\n", mFormat, 1419b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten mChannelCount, mFrameCount); 142089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project result.append(buffer); 1421e4756fe3a387615acb63c6a05788c8db9b5786cbGlenn Kasten snprintf(buffer, 255, " sample rate(%u), status(%d)\n", 1422e4756fe3a387615acb63c6a05788c8db9b5786cbGlenn Kasten (cblk == 0) ? 0 : cblk->sampleRate, mStatus); 142389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project result.append(buffer); 142489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project snprintf(buffer, 255, " active(%d), latency (%d)\n", mActive, mLatency); 142589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project result.append(buffer); 142689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project ::write(fd, result.string(), result.size()); 142789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return NO_ERROR; 142889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 142989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 143089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project// ========================================================================= 143189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 143289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source ProjectAudioTrack::AudioTrackThread::AudioTrackThread(AudioTrack& receiver, bool bCanCallJava) 14333acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten : Thread(bCanCallJava), mReceiver(receiver), mPaused(true) 14343acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten{ 14353acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten} 14363acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten 14373acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn KastenAudioTrack::AudioTrackThread::~AudioTrackThread() 143889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 143989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 144089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 144189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectbool AudioTrack::AudioTrackThread::threadLoop() 144289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 14433acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten { 14443acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten AutoMutex _l(mMyLock); 14453acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten if (mPaused) { 14463acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten mMyCond.wait(mMyLock); 14473acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten // caller will check for exitPending() 14483acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten return true; 14493acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten } 14503acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten } 1451ca8b28013c0558a4a3323a1a0f58520277200086Glenn Kasten if (!mReceiver.processAudioBuffer(this)) { 1452ca8b28013c0558a4a3323a1a0f58520277200086Glenn Kasten pause(); 1453ca8b28013c0558a4a3323a1a0f58520277200086Glenn Kasten } 1454ca8b28013c0558a4a3323a1a0f58520277200086Glenn Kasten return true; 145589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 145689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 14573acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kastenvoid AudioTrack::AudioTrackThread::requestExit() 14583acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten{ 14593acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten // must be in this order to avoid a race condition 14603acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten Thread::requestExit(); 1461f4022f90db5acb680870db8c1150b673cdd211d9Glenn Kasten resume(); 14623acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten} 14633acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten 14643acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kastenvoid AudioTrack::AudioTrackThread::pause() 14653acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten{ 14663acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten AutoMutex _l(mMyLock); 14673acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten mPaused = true; 14683acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten} 14693acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten 14703acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kastenvoid AudioTrack::AudioTrackThread::resume() 14713acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten{ 14723acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten AutoMutex _l(mMyLock); 14733acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten if (mPaused) { 14743acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten mPaused = false; 14753acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten mMyCond.signal(); 14763acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten } 14773acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten} 14783acbd053c842e76e1a40fc8a0bf62de87eebf00fGlenn Kasten 147989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project// ========================================================================= 148089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 148138ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent 148289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Projectaudio_track_cblk_t::audio_track_cblk_t() 148354b1a0550411c2fd2084d82d28934d505c37349aMathias Agopian : lock(Mutex::SHARED), cv(Condition::SHARED), user(0), server(0), 1484b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten userBase(0), serverBase(0), frameCount_(0), 148583d86538c4c479a9225c75ab27938e8f05abb9c8Glenn Kasten loopStart(UINT_MAX), loopEnd(UINT_MAX), loopCount(0), mVolumeLR(0x10001000), 148605632a5fa4b88ca474294887fc92a9fcdf0e2352Glenn Kasten mSendLevel(0), flags(0) 148789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 148889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 148989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1490b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kastenuint32_t audio_track_cblk_t::stepUser(size_t stepCount, size_t frameCount, bool isOut) 149189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 1492b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten ALOGV("stepuser %08x %08x %d", user, server, stepCount); 149389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1494a1472d9883e35edd280201c8be3191695007dfd4Marco Nelissen uint32_t u = user; 1495b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten u += stepCount; 149689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Ensure that user is never ahead of server for AudioRecord 1497864585df53eb97c31e77b3ad7c0d89e4f9b42588Glenn Kasten if (isOut) { 149889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // If stepServer() has been called once, switch to normal obtainBuffer() timeout period 149989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (bufferTimeoutMs == MAX_STARTUP_TIMEOUT_MS-1) { 150089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project bufferTimeoutMs = MAX_RUN_TIMEOUT_MS; 150189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 15029054897ab9ffb307fadae81b774a1fc61cb542e7Glenn Kasten } else if (u > server) { 1503a1472d9883e35edd280201c8be3191695007dfd4Marco Nelissen ALOGW("stepUser occurred after track reset"); 15049054897ab9ffb307fadae81b774a1fc61cb542e7Glenn Kasten u = server; 150589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 150689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1507b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten if (u >= frameCount) { 1508a1472d9883e35edd280201c8be3191695007dfd4Marco Nelissen // common case, user didn't just wrap 1509b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten if (u - frameCount >= userBase ) { 1510b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten userBase += frameCount; 1511a1472d9883e35edd280201c8be3191695007dfd4Marco Nelissen } 1512b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten } else if (u >= userBase + frameCount) { 1513a1472d9883e35edd280201c8be3191695007dfd4Marco Nelissen // user just wrapped 1514b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten userBase += frameCount; 151589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 151689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 15179054897ab9ffb307fadae81b774a1fc61cb542e7Glenn Kasten user = u; 151889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 151989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Clear flow control error condition as new data has been written/read to/from buffer. 15209c5fdd83f9b9f49be35107971feb33528d60b945Glenn Kasten if (flags & CBLK_UNDERRUN) { 15219c5fdd83f9b9f49be35107971feb33528d60b945Glenn Kasten android_atomic_and(~CBLK_UNDERRUN, &flags); 152233797ea64d067dfeaacbfd7ebe7f3383b73961b5Eric Laurent } 152389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 152489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return u; 152589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 152689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1527b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kastenbool audio_track_cblk_t::stepServer(size_t stepCount, size_t frameCount, bool isOut) 152889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 1529b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten ALOGV("stepserver %08x %08x %d", user, server, stepCount); 1530a1472d9883e35edd280201c8be3191695007dfd4Marco Nelissen 153138ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent if (!tryLock()) { 15325ff1dd576bb93c45b44088a51544a18fc43ebf58Steve Block ALOGW("stepServer() could not lock cblk"); 153389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return false; 153489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 153589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 15369054897ab9ffb307fadae81b774a1fc61cb542e7Glenn Kasten uint32_t s = server; 1537a1472d9883e35edd280201c8be3191695007dfd4Marco Nelissen bool flushed = (s == user); 153889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1539b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten s += stepCount; 1540864585df53eb97c31e77b3ad7c0d89e4f9b42588Glenn Kasten if (isOut) { 154189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // Mark that we have read the first buffer so that next time stepUser() is called 154289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // we switch to normal obtainBuffer() timeout period 154389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (bufferTimeoutMs == MAX_STARTUP_TIMEOUT_MS) { 154434f1d8ecd23169a5f299937e3aaf1bd7937578a0Eric Laurent bufferTimeoutMs = MAX_STARTUP_TIMEOUT_MS - 1; 1545c2f1f07084818942352c6bbfb36af9b6b330eb4eEric Laurent } 154689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // It is possible that we receive a flush() 154789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // while the mixer is processing a block: in this case, 154889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // stepServer() is called After the flush() has reset u & s and 154989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project // we have s > u 1550a1472d9883e35edd280201c8be3191695007dfd4Marco Nelissen if (flushed) { 15515ff1dd576bb93c45b44088a51544a18fc43ebf58Steve Block ALOGW("stepServer occurred after track reset"); 15529054897ab9ffb307fadae81b774a1fc61cb542e7Glenn Kasten s = user; 155389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 155489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 155589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 155689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (s >= loopEnd) { 15575ff1dd576bb93c45b44088a51544a18fc43ebf58Steve Block ALOGW_IF(s > loopEnd, "stepServer: s %u > loopEnd %u", s, loopEnd); 155889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project s = loopStart; 155989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (--loopCount == 0) { 156089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project loopEnd = UINT_MAX; 156189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project loopStart = UINT_MAX; 156289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 156389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 1564a1472d9883e35edd280201c8be3191695007dfd4Marco Nelissen 1565b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten if (s >= frameCount) { 1566a1472d9883e35edd280201c8be3191695007dfd4Marco Nelissen // common case, server didn't just wrap 1567b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten if (s - frameCount >= serverBase ) { 1568b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten serverBase += frameCount; 1569a1472d9883e35edd280201c8be3191695007dfd4Marco Nelissen } 1570b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten } else if (s >= serverBase + frameCount) { 1571a1472d9883e35edd280201c8be3191695007dfd4Marco Nelissen // server just wrapped 1572b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten serverBase += frameCount; 157389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 157489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 15759054897ab9ffb307fadae81b774a1fc61cb542e7Glenn Kasten server = s; 157689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 15779c5fdd83f9b9f49be35107971feb33528d60b945Glenn Kasten if (!(flags & CBLK_INVALID)) { 15781703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent cv.signal(); 15791703cdfee717b1b312bf8979816a9e2f16a82e5dEric Laurent } 158089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project lock.unlock(); 158189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return true; 158289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 158389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 158483a0382dc17364567667a4e6135db43f5bd92efcGlenn Kastenvoid* audio_track_cblk_t::buffer(void *buffers, size_t frameSize, uint32_t offset) const 158589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 15869054897ab9ffb307fadae81b774a1fc61cb542e7Glenn Kasten return (int8_t *)buffers + (offset - userBase) * frameSize; 158789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 158889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1589b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kastenuint32_t audio_track_cblk_t::framesAvailable(size_t frameCount, bool isOut) 159089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 159189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project Mutex::Autolock _l(lock); 1592b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kasten return framesAvailable_l(frameCount, isOut); 159389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 159489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1595b603744e96b07b1d5bf745bde593fb2c025cefcfGlenn Kastenuint32_t audio_track_cblk_t::framesAvailable_l(size_t frameCount, bool isOut) 159689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 15979054897ab9ffb307fadae81b774a1fc61cb542e7Glenn Kasten uint32_t u = user; 15989054897ab9ffb307fadae81b774a1fc61cb542e7Glenn Kasten uint32_t s = server; 159989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1600864585df53eb97c31e77b3ad7c0d89e4f9b42588Glenn Kasten if (isOut) { 160189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project uint32_t limit = (s < loopStart) ? s : loopStart; 160289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return limit + frameCount - u; 160389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } else { 160489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return frameCount + u - s; 160589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 160689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 160789fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1608864585df53eb97c31e77b3ad7c0d89e4f9b42588Glenn Kastenuint32_t audio_track_cblk_t::framesReady(bool isOut) 160989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project{ 16109054897ab9ffb307fadae81b774a1fc61cb542e7Glenn Kasten uint32_t u = user; 16119054897ab9ffb307fadae81b774a1fc61cb542e7Glenn Kasten uint32_t s = server; 161289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 1613864585df53eb97c31e77b3ad7c0d89e4f9b42588Glenn Kasten if (isOut) { 161489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (u < loopEnd) { 161589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return u - s; 161689fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } else { 161738ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent // do not block on mutex shared with client on AudioFlinger side 161838ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent if (!tryLock()) { 16195ff1dd576bb93c45b44088a51544a18fc43ebf58Steve Block ALOGW("framesReady() could not lock cblk"); 162038ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent return 0; 162138ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent } 162238ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent uint32_t frames = UINT_MAX; 162389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project if (loopCount >= 0) { 162438ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent frames = (loopEnd - loopStart)*loopCount + u - s; 162589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 162638ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent lock.unlock(); 162738ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent return frames; 162889fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 162989fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } else { 163089fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project return s - u; 163189fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project } 163289fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project} 163389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 163438ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurentbool audio_track_cblk_t::tryLock() 163538ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent{ 163638ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent // the code below simulates lock-with-timeout 163738ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent // we MUST do this to protect the AudioFlinger server 163838ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent // as this lock is shared with the client. 163938ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent status_t err; 164038ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent 164138ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent err = lock.tryLock(); 164238ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent if (err == -EBUSY) { // just wait a bit 164338ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent usleep(1000); 164438ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent err = lock.tryLock(); 164538ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent } 164638ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent if (err != NO_ERROR) { 164738ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent // probably, the client just died. 164838ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent return false; 164938ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent } 165038ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent return true; 165138ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent} 165238ccae2c0324daa305f3fe77d25fdf5edec0b0e1Eric Laurent 165389fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project// ------------------------------------------------------------------------- 165489fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project 165589fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5The Android Open Source Project}; // namespace android 1656