4f1fcc2890
The problem is that AudioRecord never exits read() when a timeout occurs while trying to get new PCM data from audio hardware input buffer: it just keeps waiting and retrying until stop() is called. In the same time, opencore AndroidAudioInput::audin_thread_func() loop cannot be exited when stuck in AudioRecord::read() because the iExitAudioThread flag can only be sampled when AudioRecord::read() returns. We remain stuck with the audio input thread running. The fix consists in modifying AudioRecord behavior in case of timeout when getting new PCM samples. We now wait only one timeout period and try to restart audio record, in case the problem is due to a media_server process crash. If this fails, we exit read() with a number of bytes read equals to 0 so that AndroidAudioInput::audin_thread_func() loop can exit. Also modified Audioflinger::RecordThread() loop so that we attempt to recover from HAL read errors. In case of read error, the input stream is forced to standby so that next read attempt does a reconfiguration and restart of the audio input device.
3921 lines
127 KiB
C++
3921 lines
127 KiB
C++
/* //device/include/server/AudioFlinger/AudioFlinger.cpp
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**
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** Copyright 2007, The Android Open Source Project
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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#define LOG_TAG "AudioFlinger"
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//#define LOG_NDEBUG 0
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#include <math.h>
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#include <signal.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <binder/IServiceManager.h>
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#include <utils/Log.h>
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#include <binder/Parcel.h>
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#include <binder/IPCThreadState.h>
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#include <utils/String16.h>
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#include <utils/threads.h>
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#include <cutils/properties.h>
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#include <media/AudioTrack.h>
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#include <media/AudioRecord.h>
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#include <private/media/AudioTrackShared.h>
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#include <hardware_legacy/AudioHardwareInterface.h>
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#include "AudioMixer.h"
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#include "AudioFlinger.h"
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#ifdef WITH_A2DP
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#include "A2dpAudioInterface.h"
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#endif
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// ----------------------------------------------------------------------------
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// the sim build doesn't have gettid
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#ifndef HAVE_GETTID
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# define gettid getpid
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#endif
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// ----------------------------------------------------------------------------
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namespace android {
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static const char* kDeadlockedString = "AudioFlinger may be deadlocked\n";
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static const char* kHardwareLockedString = "Hardware lock is taken\n";
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//static const nsecs_t kStandbyTimeInNsecs = seconds(3);
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static const float MAX_GAIN = 4096.0f;
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// retry counts for buffer fill timeout
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// 50 * ~20msecs = 1 second
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static const int8_t kMaxTrackRetries = 50;
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static const int8_t kMaxTrackStartupRetries = 50;
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static const int kDumpLockRetries = 50;
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static const int kDumpLockSleep = 20000;
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static const nsecs_t kWarningThrottle = seconds(5);
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#define AUDIOFLINGER_SECURITY_ENABLED 1
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// ----------------------------------------------------------------------------
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static bool recordingAllowed() {
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#ifndef HAVE_ANDROID_OS
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return true;
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#endif
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#if AUDIOFLINGER_SECURITY_ENABLED
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if (getpid() == IPCThreadState::self()->getCallingPid()) return true;
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bool ok = checkCallingPermission(String16("android.permission.RECORD_AUDIO"));
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if (!ok) LOGE("Request requires android.permission.RECORD_AUDIO");
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return ok;
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#else
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if (!checkCallingPermission(String16("android.permission.RECORD_AUDIO")))
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LOGW("WARNING: Need to add android.permission.RECORD_AUDIO to manifest");
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return true;
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#endif
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}
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static bool settingsAllowed() {
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#ifndef HAVE_ANDROID_OS
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return true;
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#endif
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#if AUDIOFLINGER_SECURITY_ENABLED
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if (getpid() == IPCThreadState::self()->getCallingPid()) return true;
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bool ok = checkCallingPermission(String16("android.permission.MODIFY_AUDIO_SETTINGS"));
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if (!ok) LOGE("Request requires android.permission.MODIFY_AUDIO_SETTINGS");
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return ok;
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#else
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if (!checkCallingPermission(String16("android.permission.MODIFY_AUDIO_SETTINGS")))
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LOGW("WARNING: Need to add android.permission.MODIFY_AUDIO_SETTINGS to manifest");
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return true;
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#endif
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}
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// ----------------------------------------------------------------------------
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AudioFlinger::AudioFlinger()
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: BnAudioFlinger(),
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mAudioHardware(0), mMasterVolume(1.0f), mMasterMute(false), mNextThreadId(0)
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{
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mHardwareStatus = AUDIO_HW_IDLE;
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mAudioHardware = AudioHardwareInterface::create();
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mHardwareStatus = AUDIO_HW_INIT;
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if (mAudioHardware->initCheck() == NO_ERROR) {
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// open 16-bit output stream for s/w mixer
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setMode(AudioSystem::MODE_NORMAL);
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setMasterVolume(1.0f);
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setMasterMute(false);
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} else {
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LOGE("Couldn't even initialize the stubbed audio hardware!");
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}
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}
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AudioFlinger::~AudioFlinger()
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{
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while (!mRecordThreads.isEmpty()) {
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// closeInput() will remove first entry from mRecordThreads
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closeInput(mRecordThreads.keyAt(0));
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}
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while (!mPlaybackThreads.isEmpty()) {
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// closeOutput() will remove first entry from mPlaybackThreads
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closeOutput(mPlaybackThreads.keyAt(0));
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}
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if (mAudioHardware) {
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delete mAudioHardware;
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}
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}
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status_t AudioFlinger::dumpClients(int fd, const Vector<String16>& args)
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{
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const size_t SIZE = 256;
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char buffer[SIZE];
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String8 result;
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result.append("Clients:\n");
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for (size_t i = 0; i < mClients.size(); ++i) {
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wp<Client> wClient = mClients.valueAt(i);
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if (wClient != 0) {
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sp<Client> client = wClient.promote();
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if (client != 0) {
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snprintf(buffer, SIZE, " pid: %d\n", client->pid());
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result.append(buffer);
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}
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}
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}
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write(fd, result.string(), result.size());
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return NO_ERROR;
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}
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status_t AudioFlinger::dumpInternals(int fd, const Vector<String16>& args)
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{
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const size_t SIZE = 256;
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char buffer[SIZE];
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String8 result;
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int hardwareStatus = mHardwareStatus;
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snprintf(buffer, SIZE, "Hardware status: %d\n", hardwareStatus);
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result.append(buffer);
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write(fd, result.string(), result.size());
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return NO_ERROR;
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}
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status_t AudioFlinger::dumpPermissionDenial(int fd, const Vector<String16>& args)
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{
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const size_t SIZE = 256;
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char buffer[SIZE];
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String8 result;
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snprintf(buffer, SIZE, "Permission Denial: "
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"can't dump AudioFlinger from pid=%d, uid=%d\n",
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IPCThreadState::self()->getCallingPid(),
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IPCThreadState::self()->getCallingUid());
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result.append(buffer);
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write(fd, result.string(), result.size());
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return NO_ERROR;
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}
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static bool tryLock(Mutex& mutex)
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{
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bool locked = false;
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for (int i = 0; i < kDumpLockRetries; ++i) {
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if (mutex.tryLock() == NO_ERROR) {
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locked = true;
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break;
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}
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usleep(kDumpLockSleep);
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}
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return locked;
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}
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status_t AudioFlinger::dump(int fd, const Vector<String16>& args)
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{
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if (checkCallingPermission(String16("android.permission.DUMP")) == false) {
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dumpPermissionDenial(fd, args);
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} else {
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// get state of hardware lock
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bool hardwareLocked = tryLock(mHardwareLock);
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if (!hardwareLocked) {
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String8 result(kHardwareLockedString);
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write(fd, result.string(), result.size());
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} else {
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mHardwareLock.unlock();
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}
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bool locked = tryLock(mLock);
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// failed to lock - AudioFlinger is probably deadlocked
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if (!locked) {
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String8 result(kDeadlockedString);
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write(fd, result.string(), result.size());
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}
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dumpClients(fd, args);
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dumpInternals(fd, args);
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// dump playback threads
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for (size_t i = 0; i < mPlaybackThreads.size(); i++) {
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mPlaybackThreads.valueAt(i)->dump(fd, args);
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}
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// dump record threads
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for (size_t i = 0; i < mRecordThreads.size(); i++) {
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mRecordThreads.valueAt(i)->dump(fd, args);
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}
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if (mAudioHardware) {
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mAudioHardware->dumpState(fd, args);
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}
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if (locked) mLock.unlock();
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}
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return NO_ERROR;
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}
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// IAudioFlinger interface
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sp<IAudioTrack> AudioFlinger::createTrack(
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pid_t pid,
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int streamType,
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uint32_t sampleRate,
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int format,
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int channelCount,
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int frameCount,
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uint32_t flags,
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const sp<IMemory>& sharedBuffer,
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int output,
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status_t *status)
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{
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sp<PlaybackThread::Track> track;
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sp<TrackHandle> trackHandle;
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sp<Client> client;
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wp<Client> wclient;
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status_t lStatus;
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if (streamType >= AudioSystem::NUM_STREAM_TYPES) {
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LOGE("invalid stream type");
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lStatus = BAD_VALUE;
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goto Exit;
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}
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{
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Mutex::Autolock _l(mLock);
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PlaybackThread *thread = checkPlaybackThread_l(output);
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if (thread == NULL) {
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LOGE("unknown output thread");
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lStatus = BAD_VALUE;
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goto Exit;
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}
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wclient = mClients.valueFor(pid);
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if (wclient != NULL) {
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client = wclient.promote();
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} else {
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client = new Client(this, pid);
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mClients.add(pid, client);
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}
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track = thread->createTrack_l(client, streamType, sampleRate, format,
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channelCount, frameCount, sharedBuffer, &lStatus);
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}
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if (lStatus == NO_ERROR) {
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trackHandle = new TrackHandle(track);
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} else {
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// remove local strong reference to Client before deleting the Track so that the Client
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// destructor is called by the TrackBase destructor with mLock held
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client.clear();
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track.clear();
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}
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Exit:
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if(status) {
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*status = lStatus;
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}
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return trackHandle;
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}
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uint32_t AudioFlinger::sampleRate(int output) const
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{
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Mutex::Autolock _l(mLock);
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PlaybackThread *thread = checkPlaybackThread_l(output);
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if (thread == NULL) {
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LOGW("sampleRate() unknown thread %d", output);
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return 0;
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}
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return thread->sampleRate();
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}
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int AudioFlinger::channelCount(int output) const
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{
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Mutex::Autolock _l(mLock);
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PlaybackThread *thread = checkPlaybackThread_l(output);
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if (thread == NULL) {
|
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LOGW("channelCount() unknown thread %d", output);
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return 0;
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}
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return thread->channelCount();
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}
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|
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int AudioFlinger::format(int output) const
|
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{
|
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Mutex::Autolock _l(mLock);
|
|
PlaybackThread *thread = checkPlaybackThread_l(output);
|
|
if (thread == NULL) {
|
|
LOGW("format() unknown thread %d", output);
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|
return 0;
|
|
}
|
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return thread->format();
|
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}
|
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|
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size_t AudioFlinger::frameCount(int output) const
|
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{
|
|
Mutex::Autolock _l(mLock);
|
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PlaybackThread *thread = checkPlaybackThread_l(output);
|
|
if (thread == NULL) {
|
|
LOGW("frameCount() unknown thread %d", output);
|
|
return 0;
|
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}
|
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return thread->frameCount();
|
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}
|
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|
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uint32_t AudioFlinger::latency(int output) const
|
|
{
|
|
Mutex::Autolock _l(mLock);
|
|
PlaybackThread *thread = checkPlaybackThread_l(output);
|
|
if (thread == NULL) {
|
|
LOGW("latency() unknown thread %d", output);
|
|
return 0;
|
|
}
|
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return thread->latency();
|
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}
|
|
|
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status_t AudioFlinger::setMasterVolume(float value)
|
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{
|
|
// check calling permissions
|
|
if (!settingsAllowed()) {
|
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return PERMISSION_DENIED;
|
|
}
|
|
|
|
// when hw supports master volume, don't scale in sw mixer
|
|
AutoMutex lock(mHardwareLock);
|
|
mHardwareStatus = AUDIO_HW_SET_MASTER_VOLUME;
|
|
if (mAudioHardware->setMasterVolume(value) == NO_ERROR) {
|
|
value = 1.0f;
|
|
}
|
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mHardwareStatus = AUDIO_HW_IDLE;
|
|
|
|
mMasterVolume = value;
|
|
for (uint32_t i = 0; i < mPlaybackThreads.size(); i++)
|
|
mPlaybackThreads.valueAt(i)->setMasterVolume(value);
|
|
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t AudioFlinger::setMode(int mode)
|
|
{
|
|
// check calling permissions
|
|
if (!settingsAllowed()) {
|
|
return PERMISSION_DENIED;
|
|
}
|
|
if ((mode < 0) || (mode >= AudioSystem::NUM_MODES)) {
|
|
LOGW("Illegal value: setMode(%d)", mode);
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
AutoMutex lock(mHardwareLock);
|
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mHardwareStatus = AUDIO_HW_SET_MODE;
|
|
status_t ret = mAudioHardware->setMode(mode);
|
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mHardwareStatus = AUDIO_HW_IDLE;
|
|
return ret;
|
|
}
|
|
|
|
status_t AudioFlinger::setMicMute(bool state)
|
|
{
|
|
// check calling permissions
|
|
if (!settingsAllowed()) {
|
|
return PERMISSION_DENIED;
|
|
}
|
|
|
|
AutoMutex lock(mHardwareLock);
|
|
mHardwareStatus = AUDIO_HW_SET_MIC_MUTE;
|
|
status_t ret = mAudioHardware->setMicMute(state);
|
|
mHardwareStatus = AUDIO_HW_IDLE;
|
|
return ret;
|
|
}
|
|
|
|
bool AudioFlinger::getMicMute() const
|
|
{
|
|
bool state = AudioSystem::MODE_INVALID;
|
|
mHardwareStatus = AUDIO_HW_GET_MIC_MUTE;
|
|
mAudioHardware->getMicMute(&state);
|
|
mHardwareStatus = AUDIO_HW_IDLE;
|
|
return state;
|
|
}
|
|
|
|
status_t AudioFlinger::setMasterMute(bool muted)
|
|
{
|
|
// check calling permissions
|
|
if (!settingsAllowed()) {
|
|
return PERMISSION_DENIED;
|
|
}
|
|
|
|
mMasterMute = muted;
|
|
for (uint32_t i = 0; i < mPlaybackThreads.size(); i++)
|
|
mPlaybackThreads.valueAt(i)->setMasterMute(muted);
|
|
|
|
return NO_ERROR;
|
|
}
|
|
|
|
float AudioFlinger::masterVolume() const
|
|
{
|
|
return mMasterVolume;
|
|
}
|
|
|
|
bool AudioFlinger::masterMute() const
|
|
{
|
|
return mMasterMute;
|
|
}
|
|
|
|
status_t AudioFlinger::setStreamVolume(int stream, float value, int output)
|
|
{
|
|
// check calling permissions
|
|
if (!settingsAllowed()) {
|
|
return PERMISSION_DENIED;
|
|
}
|
|
|
|
if (stream < 0 || uint32_t(stream) >= AudioSystem::NUM_STREAM_TYPES) {
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
AutoMutex lock(mLock);
|
|
PlaybackThread *thread = NULL;
|
|
if (output) {
|
|
thread = checkPlaybackThread_l(output);
|
|
if (thread == NULL) {
|
|
return BAD_VALUE;
|
|
}
|
|
}
|
|
|
|
mStreamTypes[stream].volume = value;
|
|
|
|
if (thread == NULL) {
|
|
for (uint32_t i = 0; i < mPlaybackThreads.size(); i++) {
|
|
mPlaybackThreads.valueAt(i)->setStreamVolume(stream, value);
|
|
}
|
|
} else {
|
|
thread->setStreamVolume(stream, value);
|
|
}
|
|
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t AudioFlinger::setStreamMute(int stream, bool muted)
|
|
{
|
|
// check calling permissions
|
|
if (!settingsAllowed()) {
|
|
return PERMISSION_DENIED;
|
|
}
|
|
|
|
if (stream < 0 || uint32_t(stream) >= AudioSystem::NUM_STREAM_TYPES ||
|
|
uint32_t(stream) == AudioSystem::ENFORCED_AUDIBLE) {
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
mStreamTypes[stream].mute = muted;
|
|
for (uint32_t i = 0; i < mPlaybackThreads.size(); i++)
|
|
mPlaybackThreads.valueAt(i)->setStreamMute(stream, muted);
|
|
|
|
return NO_ERROR;
|
|
}
|
|
|
|
float AudioFlinger::streamVolume(int stream, int output) const
|
|
{
|
|
if (stream < 0 || uint32_t(stream) >= AudioSystem::NUM_STREAM_TYPES) {
|
|
return 0.0f;
|
|
}
|
|
|
|
AutoMutex lock(mLock);
|
|
float volume;
|
|
if (output) {
|
|
PlaybackThread *thread = checkPlaybackThread_l(output);
|
|
if (thread == NULL) {
|
|
return 0.0f;
|
|
}
|
|
volume = thread->streamVolume(stream);
|
|
} else {
|
|
volume = mStreamTypes[stream].volume;
|
|
}
|
|
|
|
return volume;
|
|
}
|
|
|
|
bool AudioFlinger::streamMute(int stream) const
|
|
{
|
|
if (stream < 0 || stream >= (int)AudioSystem::NUM_STREAM_TYPES) {
|
|
return true;
|
|
}
|
|
|
|
return mStreamTypes[stream].mute;
|
|
}
|
|
|
|
bool AudioFlinger::isStreamActive(int stream) const
|
|
{
|
|
Mutex::Autolock _l(mLock);
|
|
for (uint32_t i = 0; i < mPlaybackThreads.size(); i++) {
|
|
if (mPlaybackThreads.valueAt(i)->isStreamActive(stream)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
status_t AudioFlinger::setParameters(int ioHandle, const String8& keyValuePairs)
|
|
{
|
|
status_t result;
|
|
|
|
LOGV("setParameters(): io %d, keyvalue %s, tid %d, calling tid %d",
|
|
ioHandle, keyValuePairs.string(), gettid(), IPCThreadState::self()->getCallingPid());
|
|
// check calling permissions
|
|
if (!settingsAllowed()) {
|
|
return PERMISSION_DENIED;
|
|
}
|
|
|
|
// ioHandle == 0 means the parameters are global to the audio hardware interface
|
|
if (ioHandle == 0) {
|
|
AutoMutex lock(mHardwareLock);
|
|
mHardwareStatus = AUDIO_SET_PARAMETER;
|
|
result = mAudioHardware->setParameters(keyValuePairs);
|
|
mHardwareStatus = AUDIO_HW_IDLE;
|
|
return result;
|
|
}
|
|
|
|
// hold a strong ref on thread in case closeOutput() or closeInput() is called
|
|
// and the thread is exited once the lock is released
|
|
sp<ThreadBase> thread;
|
|
{
|
|
Mutex::Autolock _l(mLock);
|
|
thread = checkPlaybackThread_l(ioHandle);
|
|
if (thread == NULL) {
|
|
thread = checkRecordThread_l(ioHandle);
|
|
}
|
|
}
|
|
if (thread != NULL) {
|
|
return thread->setParameters(keyValuePairs);
|
|
}
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
String8 AudioFlinger::getParameters(int ioHandle, const String8& keys)
|
|
{
|
|
// LOGV("getParameters() io %d, keys %s, tid %d, calling tid %d",
|
|
// ioHandle, keys.string(), gettid(), IPCThreadState::self()->getCallingPid());
|
|
|
|
if (ioHandle == 0) {
|
|
return mAudioHardware->getParameters(keys);
|
|
}
|
|
|
|
Mutex::Autolock _l(mLock);
|
|
|
|
PlaybackThread *playbackThread = checkPlaybackThread_l(ioHandle);
|
|
if (playbackThread != NULL) {
|
|
return playbackThread->getParameters(keys);
|
|
}
|
|
RecordThread *recordThread = checkRecordThread_l(ioHandle);
|
|
if (recordThread != NULL) {
|
|
return recordThread->getParameters(keys);
|
|
}
|
|
return String8("");
|
|
}
|
|
|
|
size_t AudioFlinger::getInputBufferSize(uint32_t sampleRate, int format, int channelCount)
|
|
{
|
|
return mAudioHardware->getInputBufferSize(sampleRate, format, channelCount);
|
|
}
|
|
|
|
unsigned int AudioFlinger::getInputFramesLost(int ioHandle)
|
|
{
|
|
if (ioHandle == 0) {
|
|
return 0;
|
|
}
|
|
|
|
Mutex::Autolock _l(mLock);
|
|
|
|
RecordThread *recordThread = checkRecordThread_l(ioHandle);
|
|
if (recordThread != NULL) {
|
|
return recordThread->getInputFramesLost();
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
status_t AudioFlinger::setVoiceVolume(float value)
|
|
{
|
|
// check calling permissions
|
|
if (!settingsAllowed()) {
|
|
return PERMISSION_DENIED;
|
|
}
|
|
|
|
AutoMutex lock(mHardwareLock);
|
|
mHardwareStatus = AUDIO_SET_VOICE_VOLUME;
|
|
status_t ret = mAudioHardware->setVoiceVolume(value);
|
|
mHardwareStatus = AUDIO_HW_IDLE;
|
|
|
|
return ret;
|
|
}
|
|
|
|
status_t AudioFlinger::getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, int output)
|
|
{
|
|
status_t status;
|
|
|
|
Mutex::Autolock _l(mLock);
|
|
|
|
PlaybackThread *playbackThread = checkPlaybackThread_l(output);
|
|
if (playbackThread != NULL) {
|
|
return playbackThread->getRenderPosition(halFrames, dspFrames);
|
|
}
|
|
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
void AudioFlinger::registerClient(const sp<IAudioFlingerClient>& client)
|
|
{
|
|
|
|
LOGV("registerClient() %p, tid %d, calling tid %d", client.get(), gettid(), IPCThreadState::self()->getCallingPid());
|
|
Mutex::Autolock _l(mLock);
|
|
|
|
sp<IBinder> binder = client->asBinder();
|
|
if (mNotificationClients.indexOf(binder) < 0) {
|
|
LOGV("Adding notification client %p", binder.get());
|
|
binder->linkToDeath(this);
|
|
mNotificationClients.add(binder);
|
|
}
|
|
|
|
// the config change is always sent from playback or record threads to avoid deadlock
|
|
// with AudioSystem::gLock
|
|
for (size_t i = 0; i < mPlaybackThreads.size(); i++) {
|
|
mPlaybackThreads.valueAt(i)->sendConfigEvent(AudioSystem::OUTPUT_OPENED);
|
|
}
|
|
|
|
for (size_t i = 0; i < mRecordThreads.size(); i++) {
|
|
mRecordThreads.valueAt(i)->sendConfigEvent(AudioSystem::INPUT_OPENED);
|
|
}
|
|
}
|
|
|
|
void AudioFlinger::binderDied(const wp<IBinder>& who) {
|
|
|
|
LOGV("binderDied() %p, tid %d, calling tid %d", who.unsafe_get(), gettid(), IPCThreadState::self()->getCallingPid());
|
|
Mutex::Autolock _l(mLock);
|
|
|
|
IBinder *binder = who.unsafe_get();
|
|
|
|
if (binder != NULL) {
|
|
int index = mNotificationClients.indexOf(binder);
|
|
if (index >= 0) {
|
|
LOGV("Removing notification client %p", binder);
|
|
mNotificationClients.removeAt(index);
|
|
}
|
|
}
|
|
}
|
|
|
|
// audioConfigChanged_l() must be called with AudioFlinger::mLock held
|
|
void AudioFlinger::audioConfigChanged_l(int event, int ioHandle, void *param2) {
|
|
size_t size = mNotificationClients.size();
|
|
for (size_t i = 0; i < size; i++) {
|
|
sp<IBinder> binder = mNotificationClients.itemAt(i);
|
|
LOGV("audioConfigChanged_l() Notifying change to client %p", binder.get());
|
|
sp<IAudioFlingerClient> client = interface_cast<IAudioFlingerClient> (binder);
|
|
client->ioConfigChanged(event, ioHandle, param2);
|
|
}
|
|
}
|
|
|
|
// removeClient_l() must be called with AudioFlinger::mLock held
|
|
void AudioFlinger::removeClient_l(pid_t pid)
|
|
{
|
|
LOGV("removeClient_l() pid %d, tid %d, calling tid %d", pid, gettid(), IPCThreadState::self()->getCallingPid());
|
|
mClients.removeItem(pid);
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
AudioFlinger::ThreadBase::ThreadBase(const sp<AudioFlinger>& audioFlinger, int id)
|
|
: Thread(false),
|
|
mAudioFlinger(audioFlinger), mSampleRate(0), mFrameCount(0), mChannelCount(0),
|
|
mFormat(0), mFrameSize(1), mStandby(false), mId(id), mExiting(false)
|
|
{
|
|
}
|
|
|
|
AudioFlinger::ThreadBase::~ThreadBase()
|
|
{
|
|
mParamCond.broadcast();
|
|
mNewParameters.clear();
|
|
}
|
|
|
|
void AudioFlinger::ThreadBase::exit()
|
|
{
|
|
// keep a strong ref on ourself so that we wont get
|
|
// destroyed in the middle of requestExitAndWait()
|
|
sp <ThreadBase> strongMe = this;
|
|
|
|
LOGV("ThreadBase::exit");
|
|
{
|
|
AutoMutex lock(&mLock);
|
|
mExiting = true;
|
|
requestExit();
|
|
mWaitWorkCV.signal();
|
|
}
|
|
requestExitAndWait();
|
|
}
|
|
|
|
uint32_t AudioFlinger::ThreadBase::sampleRate() const
|
|
{
|
|
return mSampleRate;
|
|
}
|
|
|
|
int AudioFlinger::ThreadBase::channelCount() const
|
|
{
|
|
return mChannelCount;
|
|
}
|
|
|
|
int AudioFlinger::ThreadBase::format() const
|
|
{
|
|
return mFormat;
|
|
}
|
|
|
|
size_t AudioFlinger::ThreadBase::frameCount() const
|
|
{
|
|
return mFrameCount;
|
|
}
|
|
|
|
status_t AudioFlinger::ThreadBase::setParameters(const String8& keyValuePairs)
|
|
{
|
|
status_t status;
|
|
|
|
LOGV("ThreadBase::setParameters() %s", keyValuePairs.string());
|
|
Mutex::Autolock _l(mLock);
|
|
|
|
mNewParameters.add(keyValuePairs);
|
|
mWaitWorkCV.signal();
|
|
// wait condition with timeout in case the thread loop has exited
|
|
// before the request could be processed
|
|
if (mParamCond.waitRelative(mLock, seconds(2)) == NO_ERROR) {
|
|
status = mParamStatus;
|
|
mWaitWorkCV.signal();
|
|
} else {
|
|
status = TIMED_OUT;
|
|
}
|
|
return status;
|
|
}
|
|
|
|
void AudioFlinger::ThreadBase::sendConfigEvent(int event, int param)
|
|
{
|
|
Mutex::Autolock _l(mLock);
|
|
sendConfigEvent_l(event, param);
|
|
}
|
|
|
|
// sendConfigEvent_l() must be called with ThreadBase::mLock held
|
|
void AudioFlinger::ThreadBase::sendConfigEvent_l(int event, int param)
|
|
{
|
|
ConfigEvent *configEvent = new ConfigEvent();
|
|
configEvent->mEvent = event;
|
|
configEvent->mParam = param;
|
|
mConfigEvents.add(configEvent);
|
|
LOGV("sendConfigEvent() num events %d event %d, param %d", mConfigEvents.size(), event, param);
|
|
mWaitWorkCV.signal();
|
|
}
|
|
|
|
void AudioFlinger::ThreadBase::processConfigEvents()
|
|
{
|
|
mLock.lock();
|
|
while(!mConfigEvents.isEmpty()) {
|
|
LOGV("processConfigEvents() remaining events %d", mConfigEvents.size());
|
|
ConfigEvent *configEvent = mConfigEvents[0];
|
|
mConfigEvents.removeAt(0);
|
|
// release mLock because audioConfigChanged() will lock AudioFlinger mLock
|
|
// before calling Audioflinger::audioConfigChanged_l() thus creating
|
|
// potential cross deadlock between AudioFlinger::mLock and mLock
|
|
mLock.unlock();
|
|
audioConfigChanged(configEvent->mEvent, configEvent->mParam);
|
|
delete configEvent;
|
|
mLock.lock();
|
|
}
|
|
mLock.unlock();
|
|
}
|
|
|
|
status_t AudioFlinger::ThreadBase::dumpBase(int fd, const Vector<String16>& args)
|
|
{
|
|
const size_t SIZE = 256;
|
|
char buffer[SIZE];
|
|
String8 result;
|
|
|
|
bool locked = tryLock(mLock);
|
|
if (!locked) {
|
|
snprintf(buffer, SIZE, "thread %p maybe dead locked\n", this);
|
|
write(fd, buffer, strlen(buffer));
|
|
}
|
|
|
|
snprintf(buffer, SIZE, "standby: %d\n", mStandby);
|
|
result.append(buffer);
|
|
snprintf(buffer, SIZE, "Sample rate: %d\n", mSampleRate);
|
|
result.append(buffer);
|
|
snprintf(buffer, SIZE, "Frame count: %d\n", mFrameCount);
|
|
result.append(buffer);
|
|
snprintf(buffer, SIZE, "Channel Count: %d\n", mChannelCount);
|
|
result.append(buffer);
|
|
snprintf(buffer, SIZE, "Format: %d\n", mFormat);
|
|
result.append(buffer);
|
|
snprintf(buffer, SIZE, "Frame size: %d\n", mFrameSize);
|
|
result.append(buffer);
|
|
|
|
snprintf(buffer, SIZE, "\nPending setParameters commands: \n");
|
|
result.append(buffer);
|
|
result.append(" Index Command");
|
|
for (size_t i = 0; i < mNewParameters.size(); ++i) {
|
|
snprintf(buffer, SIZE, "\n %02d ", i);
|
|
result.append(buffer);
|
|
result.append(mNewParameters[i]);
|
|
}
|
|
|
|
snprintf(buffer, SIZE, "\n\nPending config events: \n");
|
|
result.append(buffer);
|
|
snprintf(buffer, SIZE, " Index event param\n");
|
|
result.append(buffer);
|
|
for (size_t i = 0; i < mConfigEvents.size(); i++) {
|
|
snprintf(buffer, SIZE, " %02d %02d %d\n", i, mConfigEvents[i]->mEvent, mConfigEvents[i]->mParam);
|
|
result.append(buffer);
|
|
}
|
|
result.append("\n");
|
|
|
|
write(fd, result.string(), result.size());
|
|
|
|
if (locked) {
|
|
mLock.unlock();
|
|
}
|
|
return NO_ERROR;
|
|
}
|
|
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
AudioFlinger::PlaybackThread::PlaybackThread(const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output, int id)
|
|
: ThreadBase(audioFlinger, id),
|
|
mMixBuffer(0), mSuspended(0), mBytesWritten(0), mOutput(output),
|
|
mLastWriteTime(0), mNumWrites(0), mNumDelayedWrites(0), mInWrite(false)
|
|
{
|
|
readOutputParameters();
|
|
|
|
mMasterVolume = mAudioFlinger->masterVolume();
|
|
mMasterMute = mAudioFlinger->masterMute();
|
|
|
|
for (int stream = 0; stream < AudioSystem::NUM_STREAM_TYPES; stream++) {
|
|
mStreamTypes[stream].volume = mAudioFlinger->streamVolumeInternal(stream);
|
|
mStreamTypes[stream].mute = mAudioFlinger->streamMute(stream);
|
|
}
|
|
// notify client processes that a new input has been opened
|
|
sendConfigEvent(AudioSystem::OUTPUT_OPENED);
|
|
}
|
|
|
|
AudioFlinger::PlaybackThread::~PlaybackThread()
|
|
{
|
|
delete [] mMixBuffer;
|
|
}
|
|
|
|
status_t AudioFlinger::PlaybackThread::dump(int fd, const Vector<String16>& args)
|
|
{
|
|
dumpInternals(fd, args);
|
|
dumpTracks(fd, args);
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t AudioFlinger::PlaybackThread::dumpTracks(int fd, const Vector<String16>& args)
|
|
{
|
|
const size_t SIZE = 256;
|
|
char buffer[SIZE];
|
|
String8 result;
|
|
|
|
snprintf(buffer, SIZE, "Output thread %p tracks\n", this);
|
|
result.append(buffer);
|
|
result.append(" Name Clien Typ Fmt Chn Buf S M F SRate LeftV RighV Serv User\n");
|
|
for (size_t i = 0; i < mTracks.size(); ++i) {
|
|
sp<Track> track = mTracks[i];
|
|
if (track != 0) {
|
|
track->dump(buffer, SIZE);
|
|
result.append(buffer);
|
|
}
|
|
}
|
|
|
|
snprintf(buffer, SIZE, "Output thread %p active tracks\n", this);
|
|
result.append(buffer);
|
|
result.append(" Name Clien Typ Fmt Chn Buf S M F SRate LeftV RighV Serv User\n");
|
|
for (size_t i = 0; i < mActiveTracks.size(); ++i) {
|
|
wp<Track> wTrack = mActiveTracks[i];
|
|
if (wTrack != 0) {
|
|
sp<Track> track = wTrack.promote();
|
|
if (track != 0) {
|
|
track->dump(buffer, SIZE);
|
|
result.append(buffer);
|
|
}
|
|
}
|
|
}
|
|
write(fd, result.string(), result.size());
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t AudioFlinger::PlaybackThread::dumpInternals(int fd, const Vector<String16>& args)
|
|
{
|
|
const size_t SIZE = 256;
|
|
char buffer[SIZE];
|
|
String8 result;
|
|
|
|
snprintf(buffer, SIZE, "\nOutput thread %p internals\n", this);
|
|
result.append(buffer);
|
|
snprintf(buffer, SIZE, "last write occurred (msecs): %llu\n", ns2ms(systemTime() - mLastWriteTime));
|
|
result.append(buffer);
|
|
snprintf(buffer, SIZE, "total writes: %d\n", mNumWrites);
|
|
result.append(buffer);
|
|
snprintf(buffer, SIZE, "delayed writes: %d\n", mNumDelayedWrites);
|
|
result.append(buffer);
|
|
snprintf(buffer, SIZE, "blocked in write: %d\n", mInWrite);
|
|
result.append(buffer);
|
|
snprintf(buffer, SIZE, "suspend count: %d\n", mSuspended);
|
|
result.append(buffer);
|
|
write(fd, result.string(), result.size());
|
|
|
|
dumpBase(fd, args);
|
|
|
|
return NO_ERROR;
|
|
}
|
|
|
|
// Thread virtuals
|
|
status_t AudioFlinger::PlaybackThread::readyToRun()
|
|
{
|
|
if (mSampleRate == 0) {
|
|
LOGE("No working audio driver found.");
|
|
return NO_INIT;
|
|
}
|
|
LOGI("AudioFlinger's thread %p ready to run", this);
|
|
return NO_ERROR;
|
|
}
|
|
|
|
void AudioFlinger::PlaybackThread::onFirstRef()
|
|
{
|
|
const size_t SIZE = 256;
|
|
char buffer[SIZE];
|
|
|
|
snprintf(buffer, SIZE, "Playback Thread %p", this);
|
|
|
|
run(buffer, ANDROID_PRIORITY_URGENT_AUDIO);
|
|
}
|
|
|
|
// PlaybackThread::createTrack_l() must be called with AudioFlinger::mLock held
|
|
sp<AudioFlinger::PlaybackThread::Track> AudioFlinger::PlaybackThread::createTrack_l(
|
|
const sp<AudioFlinger::Client>& client,
|
|
int streamType,
|
|
uint32_t sampleRate,
|
|
int format,
|
|
int channelCount,
|
|
int frameCount,
|
|
const sp<IMemory>& sharedBuffer,
|
|
status_t *status)
|
|
{
|
|
sp<Track> track;
|
|
status_t lStatus;
|
|
|
|
if (mType == DIRECT) {
|
|
if (sampleRate != mSampleRate || format != mFormat || channelCount != mChannelCount) {
|
|
LOGE("createTrack_l() Bad parameter: sampleRate %d format %d, channelCount %d for output %p",
|
|
sampleRate, format, channelCount, mOutput);
|
|
lStatus = BAD_VALUE;
|
|
goto Exit;
|
|
}
|
|
} else {
|
|
// Resampler implementation limits input sampling rate to 2 x output sampling rate.
|
|
if (sampleRate > mSampleRate*2) {
|
|
LOGE("Sample rate out of range: %d mSampleRate %d", sampleRate, mSampleRate);
|
|
lStatus = BAD_VALUE;
|
|
goto Exit;
|
|
}
|
|
}
|
|
|
|
if (mOutput == 0) {
|
|
LOGE("Audio driver not initialized.");
|
|
lStatus = NO_INIT;
|
|
goto Exit;
|
|
}
|
|
|
|
{ // scope for mLock
|
|
Mutex::Autolock _l(mLock);
|
|
track = new Track(this, client, streamType, sampleRate, format,
|
|
channelCount, frameCount, sharedBuffer);
|
|
if (track->getCblk() == NULL || track->name() < 0) {
|
|
lStatus = NO_MEMORY;
|
|
goto Exit;
|
|
}
|
|
mTracks.add(track);
|
|
}
|
|
lStatus = NO_ERROR;
|
|
|
|
Exit:
|
|
if(status) {
|
|
*status = lStatus;
|
|
}
|
|
return track;
|
|
}
|
|
|
|
uint32_t AudioFlinger::PlaybackThread::latency() const
|
|
{
|
|
if (mOutput) {
|
|
return mOutput->latency();
|
|
}
|
|
else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
status_t AudioFlinger::PlaybackThread::setMasterVolume(float value)
|
|
{
|
|
mMasterVolume = value;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t AudioFlinger::PlaybackThread::setMasterMute(bool muted)
|
|
{
|
|
mMasterMute = muted;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
float AudioFlinger::PlaybackThread::masterVolume() const
|
|
{
|
|
return mMasterVolume;
|
|
}
|
|
|
|
bool AudioFlinger::PlaybackThread::masterMute() const
|
|
{
|
|
return mMasterMute;
|
|
}
|
|
|
|
status_t AudioFlinger::PlaybackThread::setStreamVolume(int stream, float value)
|
|
{
|
|
mStreamTypes[stream].volume = value;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t AudioFlinger::PlaybackThread::setStreamMute(int stream, bool muted)
|
|
{
|
|
mStreamTypes[stream].mute = muted;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
float AudioFlinger::PlaybackThread::streamVolume(int stream) const
|
|
{
|
|
return mStreamTypes[stream].volume;
|
|
}
|
|
|
|
bool AudioFlinger::PlaybackThread::streamMute(int stream) const
|
|
{
|
|
return mStreamTypes[stream].mute;
|
|
}
|
|
|
|
bool AudioFlinger::PlaybackThread::isStreamActive(int stream) const
|
|
{
|
|
Mutex::Autolock _l(mLock);
|
|
size_t count = mActiveTracks.size();
|
|
for (size_t i = 0 ; i < count ; ++i) {
|
|
sp<Track> t = mActiveTracks[i].promote();
|
|
if (t == 0) continue;
|
|
Track* const track = t.get();
|
|
if (t->type() == stream)
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// addTrack_l() must be called with ThreadBase::mLock held
|
|
status_t AudioFlinger::PlaybackThread::addTrack_l(const sp<Track>& track)
|
|
{
|
|
status_t status = ALREADY_EXISTS;
|
|
|
|
// set retry count for buffer fill
|
|
track->mRetryCount = kMaxTrackStartupRetries;
|
|
if (mActiveTracks.indexOf(track) < 0) {
|
|
// the track is newly added, make sure it fills up all its
|
|
// buffers before playing. This is to ensure the client will
|
|
// effectively get the latency it requested.
|
|
track->mFillingUpStatus = Track::FS_FILLING;
|
|
track->mResetDone = false;
|
|
mActiveTracks.add(track);
|
|
status = NO_ERROR;
|
|
}
|
|
|
|
LOGV("mWaitWorkCV.broadcast");
|
|
mWaitWorkCV.broadcast();
|
|
|
|
return status;
|
|
}
|
|
|
|
// destroyTrack_l() must be called with ThreadBase::mLock held
|
|
void AudioFlinger::PlaybackThread::destroyTrack_l(const sp<Track>& track)
|
|
{
|
|
track->mState = TrackBase::TERMINATED;
|
|
if (mActiveTracks.indexOf(track) < 0) {
|
|
mTracks.remove(track);
|
|
deleteTrackName_l(track->name());
|
|
}
|
|
}
|
|
|
|
String8 AudioFlinger::PlaybackThread::getParameters(const String8& keys)
|
|
{
|
|
return mOutput->getParameters(keys);
|
|
}
|
|
|
|
void AudioFlinger::PlaybackThread::audioConfigChanged(int event, int param) {
|
|
AudioSystem::OutputDescriptor desc;
|
|
void *param2 = 0;
|
|
|
|
LOGV("PlaybackThread::audioConfigChanged, thread %p, event %d, param %d", this, event, param);
|
|
|
|
switch (event) {
|
|
case AudioSystem::OUTPUT_OPENED:
|
|
case AudioSystem::OUTPUT_CONFIG_CHANGED:
|
|
desc.channels = mChannelCount;
|
|
desc.samplingRate = mSampleRate;
|
|
desc.format = mFormat;
|
|
desc.frameCount = mFrameCount;
|
|
desc.latency = latency();
|
|
param2 = &desc;
|
|
break;
|
|
|
|
case AudioSystem::STREAM_CONFIG_CHANGED:
|
|
param2 = ¶m;
|
|
case AudioSystem::OUTPUT_CLOSED:
|
|
default:
|
|
break;
|
|
}
|
|
Mutex::Autolock _l(mAudioFlinger->mLock);
|
|
mAudioFlinger->audioConfigChanged_l(event, mId, param2);
|
|
}
|
|
|
|
void AudioFlinger::PlaybackThread::readOutputParameters()
|
|
{
|
|
mSampleRate = mOutput->sampleRate();
|
|
mChannelCount = AudioSystem::popCount(mOutput->channels());
|
|
|
|
mFormat = mOutput->format();
|
|
mFrameSize = mOutput->frameSize();
|
|
mFrameCount = mOutput->bufferSize() / mFrameSize;
|
|
|
|
// FIXME - Current mixer implementation only supports stereo output: Always
|
|
// Allocate a stereo buffer even if HW output is mono.
|
|
if (mMixBuffer != NULL) delete mMixBuffer;
|
|
mMixBuffer = new int16_t[mFrameCount * 2];
|
|
memset(mMixBuffer, 0, mFrameCount * 2 * sizeof(int16_t));
|
|
}
|
|
|
|
status_t AudioFlinger::PlaybackThread::getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames)
|
|
{
|
|
if (halFrames == 0 || dspFrames == 0) {
|
|
return BAD_VALUE;
|
|
}
|
|
if (mOutput == 0) {
|
|
return INVALID_OPERATION;
|
|
}
|
|
*halFrames = mBytesWritten/mOutput->frameSize();
|
|
|
|
return mOutput->getRenderPosition(dspFrames);
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
AudioFlinger::MixerThread::MixerThread(const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output, int id)
|
|
: PlaybackThread(audioFlinger, output, id),
|
|
mAudioMixer(0)
|
|
{
|
|
mType = PlaybackThread::MIXER;
|
|
mAudioMixer = new AudioMixer(mFrameCount, mSampleRate);
|
|
|
|
// FIXME - Current mixer implementation only supports stereo output
|
|
if (mChannelCount == 1) {
|
|
LOGE("Invalid audio hardware channel count");
|
|
}
|
|
}
|
|
|
|
AudioFlinger::MixerThread::~MixerThread()
|
|
{
|
|
delete mAudioMixer;
|
|
}
|
|
|
|
bool AudioFlinger::MixerThread::threadLoop()
|
|
{
|
|
int16_t* curBuf = mMixBuffer;
|
|
Vector< sp<Track> > tracksToRemove;
|
|
uint32_t mixerStatus = MIXER_IDLE;
|
|
nsecs_t standbyTime = systemTime();
|
|
size_t mixBufferSize = mFrameCount * mFrameSize;
|
|
// FIXME: Relaxed timing because of a certain device that can't meet latency
|
|
// Should be reduced to 2x after the vendor fixes the driver issue
|
|
nsecs_t maxPeriod = seconds(mFrameCount) / mSampleRate * 3;
|
|
nsecs_t lastWarning = 0;
|
|
bool longStandbyExit = false;
|
|
uint32_t activeSleepTime = activeSleepTimeUs();
|
|
uint32_t idleSleepTime = idleSleepTimeUs();
|
|
uint32_t sleepTime = idleSleepTime;
|
|
|
|
while (!exitPending())
|
|
{
|
|
processConfigEvents();
|
|
|
|
mixerStatus = MIXER_IDLE;
|
|
{ // scope for mLock
|
|
|
|
Mutex::Autolock _l(mLock);
|
|
|
|
if (checkForNewParameters_l()) {
|
|
mixBufferSize = mFrameCount * mFrameSize;
|
|
// FIXME: Relaxed timing because of a certain device that can't meet latency
|
|
// Should be reduced to 2x after the vendor fixes the driver issue
|
|
maxPeriod = seconds(mFrameCount) / mSampleRate * 3;
|
|
activeSleepTime = activeSleepTimeUs();
|
|
idleSleepTime = idleSleepTimeUs();
|
|
}
|
|
|
|
const SortedVector< wp<Track> >& activeTracks = mActiveTracks;
|
|
|
|
// put audio hardware into standby after short delay
|
|
if UNLIKELY((!activeTracks.size() && systemTime() > standbyTime) ||
|
|
mSuspended) {
|
|
if (!mStandby) {
|
|
LOGV("Audio hardware entering standby, mixer %p, mSuspended %d\n", this, mSuspended);
|
|
mOutput->standby();
|
|
mStandby = true;
|
|
mBytesWritten = 0;
|
|
}
|
|
|
|
if (!activeTracks.size() && mConfigEvents.isEmpty()) {
|
|
// we're about to wait, flush the binder command buffer
|
|
IPCThreadState::self()->flushCommands();
|
|
|
|
if (exitPending()) break;
|
|
|
|
// wait until we have something to do...
|
|
LOGV("MixerThread %p TID %d going to sleep\n", this, gettid());
|
|
mWaitWorkCV.wait(mLock);
|
|
LOGV("MixerThread %p TID %d waking up\n", this, gettid());
|
|
|
|
if (mMasterMute == false) {
|
|
char value[PROPERTY_VALUE_MAX];
|
|
property_get("ro.audio.silent", value, "0");
|
|
if (atoi(value)) {
|
|
LOGD("Silence is golden");
|
|
setMasterMute(true);
|
|
}
|
|
}
|
|
|
|
standbyTime = systemTime() + kStandbyTimeInNsecs;
|
|
sleepTime = idleSleepTime;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
mixerStatus = prepareTracks_l(activeTracks, &tracksToRemove);
|
|
}
|
|
|
|
if (LIKELY(mixerStatus == MIXER_TRACKS_READY)) {
|
|
// mix buffers...
|
|
mAudioMixer->process(curBuf);
|
|
sleepTime = 0;
|
|
standbyTime = systemTime() + kStandbyTimeInNsecs;
|
|
} else {
|
|
// If no tracks are ready, sleep once for the duration of an output
|
|
// buffer size, then write 0s to the output
|
|
if (sleepTime == 0) {
|
|
if (mixerStatus == MIXER_TRACKS_ENABLED) {
|
|
sleepTime = activeSleepTime;
|
|
} else {
|
|
sleepTime = idleSleepTime;
|
|
}
|
|
} else if (mBytesWritten != 0 ||
|
|
(mixerStatus == MIXER_TRACKS_ENABLED && longStandbyExit)) {
|
|
memset (curBuf, 0, mixBufferSize);
|
|
sleepTime = 0;
|
|
LOGV_IF((mBytesWritten == 0 && (mixerStatus == MIXER_TRACKS_ENABLED && longStandbyExit)), "anticipated start");
|
|
}
|
|
}
|
|
|
|
if (mSuspended) {
|
|
sleepTime = idleSleepTime;
|
|
}
|
|
// sleepTime == 0 means we must write to audio hardware
|
|
if (sleepTime == 0) {
|
|
mLastWriteTime = systemTime();
|
|
mInWrite = true;
|
|
mBytesWritten += mixBufferSize;
|
|
int bytesWritten = (int)mOutput->write(curBuf, mixBufferSize);
|
|
if (bytesWritten < 0) mBytesWritten -= mixBufferSize;
|
|
mNumWrites++;
|
|
mInWrite = false;
|
|
nsecs_t now = systemTime();
|
|
nsecs_t delta = now - mLastWriteTime;
|
|
if (delta > maxPeriod) {
|
|
mNumDelayedWrites++;
|
|
if ((now - lastWarning) > kWarningThrottle) {
|
|
LOGW("write blocked for %llu msecs, %d delayed writes, thread %p",
|
|
ns2ms(delta), mNumDelayedWrites, this);
|
|
lastWarning = now;
|
|
}
|
|
if (mStandby) {
|
|
longStandbyExit = true;
|
|
}
|
|
}
|
|
mStandby = false;
|
|
} else {
|
|
usleep(sleepTime);
|
|
}
|
|
|
|
// finally let go of all our tracks, without the lock held
|
|
// since we can't guarantee the destructors won't acquire that
|
|
// same lock.
|
|
tracksToRemove.clear();
|
|
}
|
|
|
|
if (!mStandby) {
|
|
mOutput->standby();
|
|
}
|
|
|
|
LOGV("MixerThread %p exiting", this);
|
|
return false;
|
|
}
|
|
|
|
// prepareTracks_l() must be called with ThreadBase::mLock held
|
|
uint32_t AudioFlinger::MixerThread::prepareTracks_l(const SortedVector< wp<Track> >& activeTracks, Vector< sp<Track> > *tracksToRemove)
|
|
{
|
|
|
|
uint32_t mixerStatus = MIXER_IDLE;
|
|
// find out which tracks need to be processed
|
|
size_t count = activeTracks.size();
|
|
for (size_t i=0 ; i<count ; i++) {
|
|
sp<Track> t = activeTracks[i].promote();
|
|
if (t == 0) continue;
|
|
|
|
Track* const track = t.get();
|
|
audio_track_cblk_t* cblk = track->cblk();
|
|
|
|
// The first time a track is added we wait
|
|
// for all its buffers to be filled before processing it
|
|
mAudioMixer->setActiveTrack(track->name());
|
|
if (cblk->framesReady() && (track->isReady() || track->isStopped()) &&
|
|
!track->isPaused())
|
|
{
|
|
//LOGV("track %d u=%08x, s=%08x [OK] on thread %p", track->name(), cblk->user, cblk->server, this);
|
|
|
|
// compute volume for this track
|
|
int16_t left, right;
|
|
if (track->isMuted() || mMasterMute || track->isPausing() ||
|
|
mStreamTypes[track->type()].mute) {
|
|
left = right = 0;
|
|
if (track->isPausing()) {
|
|
track->setPaused();
|
|
}
|
|
} else {
|
|
float typeVolume = mStreamTypes[track->type()].volume;
|
|
float v = mMasterVolume * typeVolume;
|
|
float v_clamped = v * cblk->volume[0];
|
|
if (v_clamped > MAX_GAIN) v_clamped = MAX_GAIN;
|
|
left = int16_t(v_clamped);
|
|
v_clamped = v * cblk->volume[1];
|
|
if (v_clamped > MAX_GAIN) v_clamped = MAX_GAIN;
|
|
right = int16_t(v_clamped);
|
|
}
|
|
|
|
// XXX: these things DON'T need to be done each time
|
|
mAudioMixer->setBufferProvider(track);
|
|
mAudioMixer->enable(AudioMixer::MIXING);
|
|
|
|
int param = AudioMixer::VOLUME;
|
|
if (track->mFillingUpStatus == Track::FS_FILLED) {
|
|
// no ramp for the first volume setting
|
|
track->mFillingUpStatus = Track::FS_ACTIVE;
|
|
if (track->mState == TrackBase::RESUMING) {
|
|
track->mState = TrackBase::ACTIVE;
|
|
param = AudioMixer::RAMP_VOLUME;
|
|
}
|
|
} else if (cblk->server != 0) {
|
|
// If the track is stopped before the first frame was mixed,
|
|
// do not apply ramp
|
|
param = AudioMixer::RAMP_VOLUME;
|
|
}
|
|
|
|
mAudioMixer->setParameter(param, AudioMixer::VOLUME0, left);
|
|
mAudioMixer->setParameter(param, AudioMixer::VOLUME1, right);
|
|
mAudioMixer->setParameter(
|
|
AudioMixer::TRACK,
|
|
AudioMixer::FORMAT, track->format());
|
|
mAudioMixer->setParameter(
|
|
AudioMixer::TRACK,
|
|
AudioMixer::CHANNEL_COUNT, track->channelCount());
|
|
mAudioMixer->setParameter(
|
|
AudioMixer::RESAMPLE,
|
|
AudioMixer::SAMPLE_RATE,
|
|
int(cblk->sampleRate));
|
|
|
|
// reset retry count
|
|
track->mRetryCount = kMaxTrackRetries;
|
|
mixerStatus = MIXER_TRACKS_READY;
|
|
} else {
|
|
//LOGV("track %d u=%08x, s=%08x [NOT READY] on thread %p", track->name(), cblk->user, cblk->server, this);
|
|
if (track->isStopped()) {
|
|
track->reset();
|
|
}
|
|
if (track->isTerminated() || track->isStopped() || track->isPaused()) {
|
|
// We have consumed all the buffers of this track.
|
|
// Remove it from the list of active tracks.
|
|
tracksToRemove->add(track);
|
|
mAudioMixer->disable(AudioMixer::MIXING);
|
|
} else {
|
|
// No buffers for this track. Give it a few chances to
|
|
// fill a buffer, then remove it from active list.
|
|
if (--(track->mRetryCount) <= 0) {
|
|
LOGV("BUFFER TIMEOUT: remove(%d) from active list on thread %p", track->name(), this);
|
|
tracksToRemove->add(track);
|
|
} else if (mixerStatus != MIXER_TRACKS_READY) {
|
|
mixerStatus = MIXER_TRACKS_ENABLED;
|
|
}
|
|
|
|
mAudioMixer->disable(AudioMixer::MIXING);
|
|
}
|
|
}
|
|
}
|
|
|
|
// remove all the tracks that need to be...
|
|
count = tracksToRemove->size();
|
|
if (UNLIKELY(count)) {
|
|
for (size_t i=0 ; i<count ; i++) {
|
|
const sp<Track>& track = tracksToRemove->itemAt(i);
|
|
mActiveTracks.remove(track);
|
|
if (track->isTerminated()) {
|
|
mTracks.remove(track);
|
|
deleteTrackName_l(track->mName);
|
|
}
|
|
}
|
|
}
|
|
|
|
return mixerStatus;
|
|
}
|
|
|
|
void AudioFlinger::MixerThread::getTracks(
|
|
SortedVector < sp<Track> >& tracks,
|
|
SortedVector < wp<Track> >& activeTracks,
|
|
int streamType)
|
|
{
|
|
LOGV ("MixerThread::getTracks() mixer %p, mTracks.size %d, mActiveTracks.size %d", this, mTracks.size(), mActiveTracks.size());
|
|
Mutex::Autolock _l(mLock);
|
|
size_t size = mTracks.size();
|
|
for (size_t i = 0; i < size; i++) {
|
|
sp<Track> t = mTracks[i];
|
|
if (t->type() == streamType) {
|
|
tracks.add(t);
|
|
int j = mActiveTracks.indexOf(t);
|
|
if (j >= 0) {
|
|
t = mActiveTracks[j].promote();
|
|
if (t != NULL) {
|
|
activeTracks.add(t);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
size = activeTracks.size();
|
|
for (size_t i = 0; i < size; i++) {
|
|
mActiveTracks.remove(activeTracks[i]);
|
|
}
|
|
|
|
size = tracks.size();
|
|
for (size_t i = 0; i < size; i++) {
|
|
sp<Track> t = tracks[i];
|
|
mTracks.remove(t);
|
|
deleteTrackName_l(t->name());
|
|
}
|
|
}
|
|
|
|
void AudioFlinger::MixerThread::putTracks(
|
|
SortedVector < sp<Track> >& tracks,
|
|
SortedVector < wp<Track> >& activeTracks)
|
|
{
|
|
LOGV ("MixerThread::putTracks() mixer %p, tracks.size %d, activeTracks.size %d", this, tracks.size(), activeTracks.size());
|
|
Mutex::Autolock _l(mLock);
|
|
size_t size = tracks.size();
|
|
for (size_t i = 0; i < size ; i++) {
|
|
sp<Track> t = tracks[i];
|
|
int name = getTrackName_l();
|
|
|
|
if (name < 0) return;
|
|
|
|
t->mName = name;
|
|
t->mThread = this;
|
|
mTracks.add(t);
|
|
|
|
int j = activeTracks.indexOf(t);
|
|
if (j >= 0) {
|
|
mActiveTracks.add(t);
|
|
// force buffer refilling and no ramp volume when the track is mixed for the first time
|
|
t->mFillingUpStatus = Track::FS_FILLING;
|
|
}
|
|
}
|
|
}
|
|
|
|
// getTrackName_l() must be called with ThreadBase::mLock held
|
|
int AudioFlinger::MixerThread::getTrackName_l()
|
|
{
|
|
return mAudioMixer->getTrackName();
|
|
}
|
|
|
|
// deleteTrackName_l() must be called with ThreadBase::mLock held
|
|
void AudioFlinger::MixerThread::deleteTrackName_l(int name)
|
|
{
|
|
LOGV("remove track (%d) and delete from mixer", name);
|
|
mAudioMixer->deleteTrackName(name);
|
|
}
|
|
|
|
// checkForNewParameters_l() must be called with ThreadBase::mLock held
|
|
bool AudioFlinger::MixerThread::checkForNewParameters_l()
|
|
{
|
|
bool reconfig = false;
|
|
|
|
while (!mNewParameters.isEmpty()) {
|
|
status_t status = NO_ERROR;
|
|
String8 keyValuePair = mNewParameters[0];
|
|
AudioParameter param = AudioParameter(keyValuePair);
|
|
int value;
|
|
|
|
if (param.getInt(String8(AudioParameter::keySamplingRate), value) == NO_ERROR) {
|
|
reconfig = true;
|
|
}
|
|
if (param.getInt(String8(AudioParameter::keyFormat), value) == NO_ERROR) {
|
|
if (value != AudioSystem::PCM_16_BIT) {
|
|
status = BAD_VALUE;
|
|
} else {
|
|
reconfig = true;
|
|
}
|
|
}
|
|
if (param.getInt(String8(AudioParameter::keyChannels), value) == NO_ERROR) {
|
|
if (value != AudioSystem::CHANNEL_OUT_STEREO) {
|
|
status = BAD_VALUE;
|
|
} else {
|
|
reconfig = true;
|
|
}
|
|
}
|
|
if (param.getInt(String8(AudioParameter::keyFrameCount), value) == NO_ERROR) {
|
|
// do not accept frame count changes if tracks are open as the track buffer
|
|
// size depends on frame count and correct behavior would not be garantied
|
|
// if frame count is changed after track creation
|
|
if (!mTracks.isEmpty()) {
|
|
status = INVALID_OPERATION;
|
|
} else {
|
|
reconfig = true;
|
|
}
|
|
}
|
|
if (status == NO_ERROR) {
|
|
status = mOutput->setParameters(keyValuePair);
|
|
if (!mStandby && status == INVALID_OPERATION) {
|
|
mOutput->standby();
|
|
mStandby = true;
|
|
mBytesWritten = 0;
|
|
status = mOutput->setParameters(keyValuePair);
|
|
}
|
|
if (status == NO_ERROR && reconfig) {
|
|
delete mAudioMixer;
|
|
readOutputParameters();
|
|
mAudioMixer = new AudioMixer(mFrameCount, mSampleRate);
|
|
for (size_t i = 0; i < mTracks.size() ; i++) {
|
|
int name = getTrackName_l();
|
|
if (name < 0) break;
|
|
mTracks[i]->mName = name;
|
|
// limit track sample rate to 2 x new output sample rate
|
|
if (mTracks[i]->mCblk->sampleRate > 2 * sampleRate()) {
|
|
mTracks[i]->mCblk->sampleRate = 2 * sampleRate();
|
|
}
|
|
}
|
|
sendConfigEvent_l(AudioSystem::OUTPUT_CONFIG_CHANGED);
|
|
}
|
|
}
|
|
|
|
mNewParameters.removeAt(0);
|
|
|
|
mParamStatus = status;
|
|
mParamCond.signal();
|
|
mWaitWorkCV.wait(mLock);
|
|
}
|
|
return reconfig;
|
|
}
|
|
|
|
status_t AudioFlinger::MixerThread::dumpInternals(int fd, const Vector<String16>& args)
|
|
{
|
|
const size_t SIZE = 256;
|
|
char buffer[SIZE];
|
|
String8 result;
|
|
|
|
PlaybackThread::dumpInternals(fd, args);
|
|
|
|
snprintf(buffer, SIZE, "AudioMixer tracks: %08x\n", mAudioMixer->trackNames());
|
|
result.append(buffer);
|
|
write(fd, result.string(), result.size());
|
|
return NO_ERROR;
|
|
}
|
|
|
|
uint32_t AudioFlinger::MixerThread::activeSleepTimeUs()
|
|
{
|
|
return (uint32_t)(mOutput->latency() * 1000) / 2;
|
|
}
|
|
|
|
uint32_t AudioFlinger::MixerThread::idleSleepTimeUs()
|
|
{
|
|
return (uint32_t)((mFrameCount * 1000) / mSampleRate) * 1000;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
AudioFlinger::DirectOutputThread::DirectOutputThread(const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output, int id)
|
|
: PlaybackThread(audioFlinger, output, id),
|
|
mLeftVolume (1.0), mRightVolume(1.0)
|
|
{
|
|
mType = PlaybackThread::DIRECT;
|
|
}
|
|
|
|
AudioFlinger::DirectOutputThread::~DirectOutputThread()
|
|
{
|
|
}
|
|
|
|
|
|
bool AudioFlinger::DirectOutputThread::threadLoop()
|
|
{
|
|
uint32_t mixerStatus = MIXER_IDLE;
|
|
sp<Track> trackToRemove;
|
|
sp<Track> activeTrack;
|
|
nsecs_t standbyTime = systemTime();
|
|
int8_t *curBuf;
|
|
size_t mixBufferSize = mFrameCount*mFrameSize;
|
|
uint32_t activeSleepTime = activeSleepTimeUs();
|
|
uint32_t idleSleepTime = idleSleepTimeUs();
|
|
uint32_t sleepTime = idleSleepTime;
|
|
|
|
|
|
while (!exitPending())
|
|
{
|
|
processConfigEvents();
|
|
|
|
mixerStatus = MIXER_IDLE;
|
|
|
|
{ // scope for the mLock
|
|
|
|
Mutex::Autolock _l(mLock);
|
|
|
|
if (checkForNewParameters_l()) {
|
|
mixBufferSize = mFrameCount*mFrameSize;
|
|
activeSleepTime = activeSleepTimeUs();
|
|
idleSleepTime = idleSleepTimeUs();
|
|
}
|
|
|
|
// put audio hardware into standby after short delay
|
|
if UNLIKELY((!mActiveTracks.size() && systemTime() > standbyTime) ||
|
|
mSuspended) {
|
|
// wait until we have something to do...
|
|
if (!mStandby) {
|
|
LOGV("Audio hardware entering standby, mixer %p\n", this);
|
|
mOutput->standby();
|
|
mStandby = true;
|
|
mBytesWritten = 0;
|
|
}
|
|
|
|
if (!mActiveTracks.size() && mConfigEvents.isEmpty()) {
|
|
// we're about to wait, flush the binder command buffer
|
|
IPCThreadState::self()->flushCommands();
|
|
|
|
if (exitPending()) break;
|
|
|
|
LOGV("DirectOutputThread %p TID %d going to sleep\n", this, gettid());
|
|
mWaitWorkCV.wait(mLock);
|
|
LOGV("DirectOutputThread %p TID %d waking up in active mode\n", this, gettid());
|
|
|
|
if (mMasterMute == false) {
|
|
char value[PROPERTY_VALUE_MAX];
|
|
property_get("ro.audio.silent", value, "0");
|
|
if (atoi(value)) {
|
|
LOGD("Silence is golden");
|
|
setMasterMute(true);
|
|
}
|
|
}
|
|
|
|
standbyTime = systemTime() + kStandbyTimeInNsecs;
|
|
sleepTime = idleSleepTime;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// find out which tracks need to be processed
|
|
if (mActiveTracks.size() != 0) {
|
|
sp<Track> t = mActiveTracks[0].promote();
|
|
if (t == 0) continue;
|
|
|
|
Track* const track = t.get();
|
|
audio_track_cblk_t* cblk = track->cblk();
|
|
|
|
// The first time a track is added we wait
|
|
// for all its buffers to be filled before processing it
|
|
if (cblk->framesReady() && (track->isReady() || track->isStopped()) &&
|
|
!track->isPaused())
|
|
{
|
|
//LOGV("track %d u=%08x, s=%08x [OK]", track->name(), cblk->user, cblk->server);
|
|
|
|
// compute volume for this track
|
|
float left, right;
|
|
if (track->isMuted() || mMasterMute || track->isPausing() ||
|
|
mStreamTypes[track->type()].mute) {
|
|
left = right = 0;
|
|
if (track->isPausing()) {
|
|
track->setPaused();
|
|
}
|
|
} else {
|
|
float typeVolume = mStreamTypes[track->type()].volume;
|
|
float v = mMasterVolume * typeVolume;
|
|
float v_clamped = v * cblk->volume[0];
|
|
if (v_clamped > MAX_GAIN) v_clamped = MAX_GAIN;
|
|
left = v_clamped/MAX_GAIN;
|
|
v_clamped = v * cblk->volume[1];
|
|
if (v_clamped > MAX_GAIN) v_clamped = MAX_GAIN;
|
|
right = v_clamped/MAX_GAIN;
|
|
}
|
|
|
|
if (left != mLeftVolume || right != mRightVolume) {
|
|
mOutput->setVolume(left, right);
|
|
left = mLeftVolume;
|
|
right = mRightVolume;
|
|
}
|
|
|
|
if (track->mFillingUpStatus == Track::FS_FILLED) {
|
|
track->mFillingUpStatus = Track::FS_ACTIVE;
|
|
if (track->mState == TrackBase::RESUMING) {
|
|
track->mState = TrackBase::ACTIVE;
|
|
}
|
|
}
|
|
|
|
// reset retry count
|
|
track->mRetryCount = kMaxTrackRetries;
|
|
activeTrack = t;
|
|
mixerStatus = MIXER_TRACKS_READY;
|
|
} else {
|
|
//LOGV("track %d u=%08x, s=%08x [NOT READY]", track->name(), cblk->user, cblk->server);
|
|
if (track->isStopped()) {
|
|
track->reset();
|
|
}
|
|
if (track->isTerminated() || track->isStopped() || track->isPaused()) {
|
|
// We have consumed all the buffers of this track.
|
|
// Remove it from the list of active tracks.
|
|
trackToRemove = track;
|
|
} else {
|
|
// No buffers for this track. Give it a few chances to
|
|
// fill a buffer, then remove it from active list.
|
|
if (--(track->mRetryCount) <= 0) {
|
|
LOGV("BUFFER TIMEOUT: remove(%d) from active list", track->name());
|
|
trackToRemove = track;
|
|
} else {
|
|
mixerStatus = MIXER_TRACKS_ENABLED;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// remove all the tracks that need to be...
|
|
if (UNLIKELY(trackToRemove != 0)) {
|
|
mActiveTracks.remove(trackToRemove);
|
|
if (trackToRemove->isTerminated()) {
|
|
mTracks.remove(trackToRemove);
|
|
deleteTrackName_l(trackToRemove->mName);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (LIKELY(mixerStatus == MIXER_TRACKS_READY)) {
|
|
AudioBufferProvider::Buffer buffer;
|
|
size_t frameCount = mFrameCount;
|
|
curBuf = (int8_t *)mMixBuffer;
|
|
// output audio to hardware
|
|
while(frameCount) {
|
|
buffer.frameCount = frameCount;
|
|
activeTrack->getNextBuffer(&buffer);
|
|
if (UNLIKELY(buffer.raw == 0)) {
|
|
memset(curBuf, 0, frameCount * mFrameSize);
|
|
break;
|
|
}
|
|
memcpy(curBuf, buffer.raw, buffer.frameCount * mFrameSize);
|
|
frameCount -= buffer.frameCount;
|
|
curBuf += buffer.frameCount * mFrameSize;
|
|
activeTrack->releaseBuffer(&buffer);
|
|
}
|
|
sleepTime = 0;
|
|
standbyTime = systemTime() + kStandbyTimeInNsecs;
|
|
} else {
|
|
if (sleepTime == 0) {
|
|
if (mixerStatus == MIXER_TRACKS_ENABLED) {
|
|
sleepTime = activeSleepTime;
|
|
} else {
|
|
sleepTime = idleSleepTime;
|
|
}
|
|
} else if (mBytesWritten != 0 && AudioSystem::isLinearPCM(mFormat)) {
|
|
memset (mMixBuffer, 0, mFrameCount * mFrameSize);
|
|
sleepTime = 0;
|
|
}
|
|
}
|
|
|
|
if (mSuspended) {
|
|
sleepTime = idleSleepTime;
|
|
}
|
|
// sleepTime == 0 means we must write to audio hardware
|
|
if (sleepTime == 0) {
|
|
mLastWriteTime = systemTime();
|
|
mInWrite = true;
|
|
mBytesWritten += mixBufferSize;
|
|
int bytesWritten = (int)mOutput->write(mMixBuffer, mixBufferSize);
|
|
if (bytesWritten < 0) mBytesWritten -= mixBufferSize;
|
|
mNumWrites++;
|
|
mInWrite = false;
|
|
mStandby = false;
|
|
} else {
|
|
usleep(sleepTime);
|
|
}
|
|
|
|
// finally let go of removed track, without the lock held
|
|
// since we can't guarantee the destructors won't acquire that
|
|
// same lock.
|
|
trackToRemove.clear();
|
|
activeTrack.clear();
|
|
}
|
|
|
|
if (!mStandby) {
|
|
mOutput->standby();
|
|
}
|
|
|
|
LOGV("DirectOutputThread %p exiting", this);
|
|
return false;
|
|
}
|
|
|
|
// getTrackName_l() must be called with ThreadBase::mLock held
|
|
int AudioFlinger::DirectOutputThread::getTrackName_l()
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
// deleteTrackName_l() must be called with ThreadBase::mLock held
|
|
void AudioFlinger::DirectOutputThread::deleteTrackName_l(int name)
|
|
{
|
|
}
|
|
|
|
// checkForNewParameters_l() must be called with ThreadBase::mLock held
|
|
bool AudioFlinger::DirectOutputThread::checkForNewParameters_l()
|
|
{
|
|
bool reconfig = false;
|
|
|
|
while (!mNewParameters.isEmpty()) {
|
|
status_t status = NO_ERROR;
|
|
String8 keyValuePair = mNewParameters[0];
|
|
AudioParameter param = AudioParameter(keyValuePair);
|
|
int value;
|
|
|
|
if (param.getInt(String8(AudioParameter::keyFrameCount), value) == NO_ERROR) {
|
|
// do not accept frame count changes if tracks are open as the track buffer
|
|
// size depends on frame count and correct behavior would not be garantied
|
|
// if frame count is changed after track creation
|
|
if (!mTracks.isEmpty()) {
|
|
status = INVALID_OPERATION;
|
|
} else {
|
|
reconfig = true;
|
|
}
|
|
}
|
|
if (status == NO_ERROR) {
|
|
status = mOutput->setParameters(keyValuePair);
|
|
if (!mStandby && status == INVALID_OPERATION) {
|
|
mOutput->standby();
|
|
mStandby = true;
|
|
mBytesWritten = 0;
|
|
status = mOutput->setParameters(keyValuePair);
|
|
}
|
|
if (status == NO_ERROR && reconfig) {
|
|
readOutputParameters();
|
|
sendConfigEvent_l(AudioSystem::OUTPUT_CONFIG_CHANGED);
|
|
}
|
|
}
|
|
|
|
mNewParameters.removeAt(0);
|
|
|
|
mParamStatus = status;
|
|
mParamCond.signal();
|
|
mWaitWorkCV.wait(mLock);
|
|
}
|
|
return reconfig;
|
|
}
|
|
|
|
uint32_t AudioFlinger::DirectOutputThread::activeSleepTimeUs()
|
|
{
|
|
uint32_t time;
|
|
if (AudioSystem::isLinearPCM(mFormat)) {
|
|
time = (uint32_t)(mOutput->latency() * 1000) / 2;
|
|
} else {
|
|
time = 10000;
|
|
}
|
|
return time;
|
|
}
|
|
|
|
uint32_t AudioFlinger::DirectOutputThread::idleSleepTimeUs()
|
|
{
|
|
uint32_t time;
|
|
if (AudioSystem::isLinearPCM(mFormat)) {
|
|
time = (uint32_t)((mFrameCount * 1000) / mSampleRate) * 1000;
|
|
} else {
|
|
time = 10000;
|
|
}
|
|
return time;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
AudioFlinger::DuplicatingThread::DuplicatingThread(const sp<AudioFlinger>& audioFlinger, AudioFlinger::MixerThread* mainThread, int id)
|
|
: MixerThread(audioFlinger, mainThread->getOutput(), id), mWaitTimeMs(UINT_MAX)
|
|
{
|
|
mType = PlaybackThread::DUPLICATING;
|
|
addOutputTrack(mainThread);
|
|
}
|
|
|
|
AudioFlinger::DuplicatingThread::~DuplicatingThread()
|
|
{
|
|
for (size_t i = 0; i < mOutputTracks.size(); i++) {
|
|
mOutputTracks[i]->destroy();
|
|
}
|
|
mOutputTracks.clear();
|
|
}
|
|
|
|
bool AudioFlinger::DuplicatingThread::threadLoop()
|
|
{
|
|
int16_t* curBuf = mMixBuffer;
|
|
Vector< sp<Track> > tracksToRemove;
|
|
uint32_t mixerStatus = MIXER_IDLE;
|
|
nsecs_t standbyTime = systemTime();
|
|
size_t mixBufferSize = mFrameCount*mFrameSize;
|
|
SortedVector< sp<OutputTrack> > outputTracks;
|
|
uint32_t writeFrames = 0;
|
|
uint32_t activeSleepTime = activeSleepTimeUs();
|
|
uint32_t idleSleepTime = idleSleepTimeUs();
|
|
uint32_t sleepTime = idleSleepTime;
|
|
|
|
while (!exitPending())
|
|
{
|
|
processConfigEvents();
|
|
|
|
mixerStatus = MIXER_IDLE;
|
|
{ // scope for the mLock
|
|
|
|
Mutex::Autolock _l(mLock);
|
|
|
|
if (checkForNewParameters_l()) {
|
|
mixBufferSize = mFrameCount*mFrameSize;
|
|
updateWaitTime();
|
|
activeSleepTime = activeSleepTimeUs();
|
|
idleSleepTime = idleSleepTimeUs();
|
|
}
|
|
|
|
const SortedVector< wp<Track> >& activeTracks = mActiveTracks;
|
|
|
|
for (size_t i = 0; i < mOutputTracks.size(); i++) {
|
|
outputTracks.add(mOutputTracks[i]);
|
|
}
|
|
|
|
// put audio hardware into standby after short delay
|
|
if UNLIKELY((!activeTracks.size() && systemTime() > standbyTime) ||
|
|
mSuspended) {
|
|
if (!mStandby) {
|
|
for (size_t i = 0; i < outputTracks.size(); i++) {
|
|
outputTracks[i]->stop();
|
|
}
|
|
mStandby = true;
|
|
mBytesWritten = 0;
|
|
}
|
|
|
|
if (!activeTracks.size() && mConfigEvents.isEmpty()) {
|
|
// we're about to wait, flush the binder command buffer
|
|
IPCThreadState::self()->flushCommands();
|
|
outputTracks.clear();
|
|
|
|
if (exitPending()) break;
|
|
|
|
LOGV("DuplicatingThread %p TID %d going to sleep\n", this, gettid());
|
|
mWaitWorkCV.wait(mLock);
|
|
LOGV("DuplicatingThread %p TID %d waking up\n", this, gettid());
|
|
if (mMasterMute == false) {
|
|
char value[PROPERTY_VALUE_MAX];
|
|
property_get("ro.audio.silent", value, "0");
|
|
if (atoi(value)) {
|
|
LOGD("Silence is golden");
|
|
setMasterMute(true);
|
|
}
|
|
}
|
|
|
|
standbyTime = systemTime() + kStandbyTimeInNsecs;
|
|
sleepTime = idleSleepTime;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
mixerStatus = prepareTracks_l(activeTracks, &tracksToRemove);
|
|
}
|
|
|
|
if (LIKELY(mixerStatus == MIXER_TRACKS_READY)) {
|
|
// mix buffers...
|
|
if (outputsReady(outputTracks)) {
|
|
mAudioMixer->process(curBuf);
|
|
} else {
|
|
memset(curBuf, 0, mixBufferSize);
|
|
}
|
|
sleepTime = 0;
|
|
writeFrames = mFrameCount;
|
|
} else {
|
|
if (sleepTime == 0) {
|
|
if (mixerStatus == MIXER_TRACKS_ENABLED) {
|
|
sleepTime = activeSleepTime;
|
|
} else {
|
|
sleepTime = idleSleepTime;
|
|
}
|
|
} else if (mBytesWritten != 0) {
|
|
// flush remaining overflow buffers in output tracks
|
|
for (size_t i = 0; i < outputTracks.size(); i++) {
|
|
if (outputTracks[i]->isActive()) {
|
|
sleepTime = 0;
|
|
writeFrames = 0;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (mSuspended) {
|
|
sleepTime = idleSleepTime;
|
|
}
|
|
// sleepTime == 0 means we must write to audio hardware
|
|
if (sleepTime == 0) {
|
|
standbyTime = systemTime() + kStandbyTimeInNsecs;
|
|
for (size_t i = 0; i < outputTracks.size(); i++) {
|
|
outputTracks[i]->write(curBuf, writeFrames);
|
|
}
|
|
mStandby = false;
|
|
mBytesWritten += mixBufferSize;
|
|
} else {
|
|
usleep(sleepTime);
|
|
}
|
|
|
|
// finally let go of all our tracks, without the lock held
|
|
// since we can't guarantee the destructors won't acquire that
|
|
// same lock.
|
|
tracksToRemove.clear();
|
|
outputTracks.clear();
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void AudioFlinger::DuplicatingThread::addOutputTrack(MixerThread *thread)
|
|
{
|
|
int frameCount = (3 * mFrameCount * mSampleRate) / thread->sampleRate();
|
|
OutputTrack *outputTrack = new OutputTrack((ThreadBase *)thread,
|
|
this,
|
|
mSampleRate,
|
|
mFormat,
|
|
mChannelCount,
|
|
frameCount);
|
|
if (outputTrack->cblk() != NULL) {
|
|
thread->setStreamVolume(AudioSystem::NUM_STREAM_TYPES, 1.0f);
|
|
mOutputTracks.add(outputTrack);
|
|
LOGV("addOutputTrack() track %p, on thread %p", outputTrack, thread);
|
|
updateWaitTime();
|
|
}
|
|
}
|
|
|
|
void AudioFlinger::DuplicatingThread::removeOutputTrack(MixerThread *thread)
|
|
{
|
|
Mutex::Autolock _l(mLock);
|
|
for (size_t i = 0; i < mOutputTracks.size(); i++) {
|
|
if (mOutputTracks[i]->thread() == (ThreadBase *)thread) {
|
|
mOutputTracks[i]->destroy();
|
|
mOutputTracks.removeAt(i);
|
|
updateWaitTime();
|
|
return;
|
|
}
|
|
}
|
|
LOGV("removeOutputTrack(): unkonwn thread: %p", thread);
|
|
}
|
|
|
|
void AudioFlinger::DuplicatingThread::updateWaitTime()
|
|
{
|
|
mWaitTimeMs = UINT_MAX;
|
|
for (size_t i = 0; i < mOutputTracks.size(); i++) {
|
|
sp<ThreadBase> strong = mOutputTracks[i]->thread().promote();
|
|
if (strong != NULL) {
|
|
uint32_t waitTimeMs = (strong->frameCount() * 2 * 1000) / strong->sampleRate();
|
|
if (waitTimeMs < mWaitTimeMs) {
|
|
mWaitTimeMs = waitTimeMs;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
bool AudioFlinger::DuplicatingThread::outputsReady(SortedVector< sp<OutputTrack> > &outputTracks)
|
|
{
|
|
for (size_t i = 0; i < outputTracks.size(); i++) {
|
|
sp <ThreadBase> thread = outputTracks[i]->thread().promote();
|
|
if (thread == 0) {
|
|
LOGW("DuplicatingThread::outputsReady() could not promote thread on output track %p", outputTracks[i].get());
|
|
return false;
|
|
}
|
|
PlaybackThread *playbackThread = (PlaybackThread *)thread.get();
|
|
if (playbackThread->standby() && !playbackThread->isSuspended()) {
|
|
LOGV("DuplicatingThread output track %p on thread %p Not Ready", outputTracks[i].get(), thread.get());
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
uint32_t AudioFlinger::DuplicatingThread::activeSleepTimeUs()
|
|
{
|
|
return (mWaitTimeMs * 1000) / 2;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// TrackBase constructor must be called with AudioFlinger::mLock held
|
|
AudioFlinger::ThreadBase::TrackBase::TrackBase(
|
|
const wp<ThreadBase>& thread,
|
|
const sp<Client>& client,
|
|
uint32_t sampleRate,
|
|
int format,
|
|
int channelCount,
|
|
int frameCount,
|
|
uint32_t flags,
|
|
const sp<IMemory>& sharedBuffer)
|
|
: RefBase(),
|
|
mThread(thread),
|
|
mClient(client),
|
|
mCblk(0),
|
|
mFrameCount(0),
|
|
mState(IDLE),
|
|
mClientTid(-1),
|
|
mFormat(format),
|
|
mFlags(flags & ~SYSTEM_FLAGS_MASK)
|
|
{
|
|
LOGV_IF(sharedBuffer != 0, "sharedBuffer: %p, size: %d", sharedBuffer->pointer(), sharedBuffer->size());
|
|
|
|
// LOGD("Creating track with %d buffers @ %d bytes", bufferCount, bufferSize);
|
|
size_t size = sizeof(audio_track_cblk_t);
|
|
size_t bufferSize = frameCount*channelCount*sizeof(int16_t);
|
|
if (sharedBuffer == 0) {
|
|
size += bufferSize;
|
|
}
|
|
|
|
if (client != NULL) {
|
|
mCblkMemory = client->heap()->allocate(size);
|
|
if (mCblkMemory != 0) {
|
|
mCblk = static_cast<audio_track_cblk_t *>(mCblkMemory->pointer());
|
|
if (mCblk) { // construct the shared structure in-place.
|
|
new(mCblk) audio_track_cblk_t();
|
|
// clear all buffers
|
|
mCblk->frameCount = frameCount;
|
|
mCblk->sampleRate = sampleRate;
|
|
mCblk->channels = (uint8_t)channelCount;
|
|
if (sharedBuffer == 0) {
|
|
mBuffer = (char*)mCblk + sizeof(audio_track_cblk_t);
|
|
memset(mBuffer, 0, frameCount*channelCount*sizeof(int16_t));
|
|
// Force underrun condition to avoid false underrun callback until first data is
|
|
// written to buffer
|
|
mCblk->flowControlFlag = 1;
|
|
} else {
|
|
mBuffer = sharedBuffer->pointer();
|
|
}
|
|
mBufferEnd = (uint8_t *)mBuffer + bufferSize;
|
|
}
|
|
} else {
|
|
LOGE("not enough memory for AudioTrack size=%u", size);
|
|
client->heap()->dump("AudioTrack");
|
|
return;
|
|
}
|
|
} else {
|
|
mCblk = (audio_track_cblk_t *)(new uint8_t[size]);
|
|
if (mCblk) { // construct the shared structure in-place.
|
|
new(mCblk) audio_track_cblk_t();
|
|
// clear all buffers
|
|
mCblk->frameCount = frameCount;
|
|
mCblk->sampleRate = sampleRate;
|
|
mCblk->channels = (uint8_t)channelCount;
|
|
mBuffer = (char*)mCblk + sizeof(audio_track_cblk_t);
|
|
memset(mBuffer, 0, frameCount*channelCount*sizeof(int16_t));
|
|
// Force underrun condition to avoid false underrun callback until first data is
|
|
// written to buffer
|
|
mCblk->flowControlFlag = 1;
|
|
mBufferEnd = (uint8_t *)mBuffer + bufferSize;
|
|
}
|
|
}
|
|
}
|
|
|
|
AudioFlinger::ThreadBase::TrackBase::~TrackBase()
|
|
{
|
|
if (mCblk) {
|
|
mCblk->~audio_track_cblk_t(); // destroy our shared-structure.
|
|
if (mClient == NULL) {
|
|
delete mCblk;
|
|
}
|
|
}
|
|
mCblkMemory.clear(); // and free the shared memory
|
|
if (mClient != NULL) {
|
|
Mutex::Autolock _l(mClient->audioFlinger()->mLock);
|
|
mClient.clear();
|
|
}
|
|
}
|
|
|
|
void AudioFlinger::ThreadBase::TrackBase::releaseBuffer(AudioBufferProvider::Buffer* buffer)
|
|
{
|
|
buffer->raw = 0;
|
|
mFrameCount = buffer->frameCount;
|
|
step();
|
|
buffer->frameCount = 0;
|
|
}
|
|
|
|
bool AudioFlinger::ThreadBase::TrackBase::step() {
|
|
bool result;
|
|
audio_track_cblk_t* cblk = this->cblk();
|
|
|
|
result = cblk->stepServer(mFrameCount);
|
|
if (!result) {
|
|
LOGV("stepServer failed acquiring cblk mutex");
|
|
mFlags |= STEPSERVER_FAILED;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void AudioFlinger::ThreadBase::TrackBase::reset() {
|
|
audio_track_cblk_t* cblk = this->cblk();
|
|
|
|
cblk->user = 0;
|
|
cblk->server = 0;
|
|
cblk->userBase = 0;
|
|
cblk->serverBase = 0;
|
|
mFlags &= (uint32_t)(~SYSTEM_FLAGS_MASK);
|
|
LOGV("TrackBase::reset");
|
|
}
|
|
|
|
sp<IMemory> AudioFlinger::ThreadBase::TrackBase::getCblk() const
|
|
{
|
|
return mCblkMemory;
|
|
}
|
|
|
|
int AudioFlinger::ThreadBase::TrackBase::sampleRate() const {
|
|
return (int)mCblk->sampleRate;
|
|
}
|
|
|
|
int AudioFlinger::ThreadBase::TrackBase::channelCount() const {
|
|
return (int)mCblk->channels;
|
|
}
|
|
|
|
void* AudioFlinger::ThreadBase::TrackBase::getBuffer(uint32_t offset, uint32_t frames) const {
|
|
audio_track_cblk_t* cblk = this->cblk();
|
|
int8_t *bufferStart = (int8_t *)mBuffer + (offset-cblk->serverBase)*cblk->frameSize;
|
|
int8_t *bufferEnd = bufferStart + frames * cblk->frameSize;
|
|
|
|
// Check validity of returned pointer in case the track control block would have been corrupted.
|
|
if (bufferStart < mBuffer || bufferStart > bufferEnd || bufferEnd > mBufferEnd ||
|
|
((unsigned long)bufferStart & (unsigned long)(cblk->frameSize - 1))) {
|
|
LOGE("TrackBase::getBuffer buffer out of range:\n start: %p, end %p , mBuffer %p mBufferEnd %p\n \
|
|
server %d, serverBase %d, user %d, userBase %d, channels %d",
|
|
bufferStart, bufferEnd, mBuffer, mBufferEnd,
|
|
cblk->server, cblk->serverBase, cblk->user, cblk->userBase, cblk->channels);
|
|
return 0;
|
|
}
|
|
|
|
return bufferStart;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// Track constructor must be called with AudioFlinger::mLock and ThreadBase::mLock held
|
|
AudioFlinger::PlaybackThread::Track::Track(
|
|
const wp<ThreadBase>& thread,
|
|
const sp<Client>& client,
|
|
int streamType,
|
|
uint32_t sampleRate,
|
|
int format,
|
|
int channelCount,
|
|
int frameCount,
|
|
const sp<IMemory>& sharedBuffer)
|
|
: TrackBase(thread, client, sampleRate, format, channelCount, frameCount, 0, sharedBuffer),
|
|
mMute(false), mSharedBuffer(sharedBuffer), mName(-1)
|
|
{
|
|
if (mCblk != NULL) {
|
|
sp<ThreadBase> baseThread = thread.promote();
|
|
if (baseThread != 0) {
|
|
PlaybackThread *playbackThread = (PlaybackThread *)baseThread.get();
|
|
mName = playbackThread->getTrackName_l();
|
|
}
|
|
LOGV("Track constructor name %d, calling thread %d", mName, IPCThreadState::self()->getCallingPid());
|
|
if (mName < 0) {
|
|
LOGE("no more track names available");
|
|
}
|
|
mVolume[0] = 1.0f;
|
|
mVolume[1] = 1.0f;
|
|
mStreamType = streamType;
|
|
// NOTE: audio_track_cblk_t::frameSize for 8 bit PCM data is based on a sample size of
|
|
// 16 bit because data is converted to 16 bit before being stored in buffer by AudioTrack
|
|
mCblk->frameSize = AudioSystem::isLinearPCM(format) ? channelCount * sizeof(int16_t) : sizeof(int8_t);
|
|
}
|
|
}
|
|
|
|
AudioFlinger::PlaybackThread::Track::~Track()
|
|
{
|
|
LOGV("PlaybackThread::Track destructor");
|
|
sp<ThreadBase> thread = mThread.promote();
|
|
if (thread != 0) {
|
|
Mutex::Autolock _l(thread->mLock);
|
|
mState = TERMINATED;
|
|
}
|
|
}
|
|
|
|
void AudioFlinger::PlaybackThread::Track::destroy()
|
|
{
|
|
// NOTE: destroyTrack_l() can remove a strong reference to this Track
|
|
// by removing it from mTracks vector, so there is a risk that this Tracks's
|
|
// desctructor is called. As the destructor needs to lock mLock,
|
|
// we must acquire a strong reference on this Track before locking mLock
|
|
// here so that the destructor is called only when exiting this function.
|
|
// On the other hand, as long as Track::destroy() is only called by
|
|
// TrackHandle destructor, the TrackHandle still holds a strong ref on
|
|
// this Track with its member mTrack.
|
|
sp<Track> keep(this);
|
|
{ // scope for mLock
|
|
sp<ThreadBase> thread = mThread.promote();
|
|
if (thread != 0) {
|
|
if (!isOutputTrack()) {
|
|
if (mState == ACTIVE || mState == RESUMING) {
|
|
AudioSystem::stopOutput(thread->id(), (AudioSystem::stream_type)mStreamType);
|
|
}
|
|
AudioSystem::releaseOutput(thread->id());
|
|
}
|
|
Mutex::Autolock _l(thread->mLock);
|
|
PlaybackThread *playbackThread = (PlaybackThread *)thread.get();
|
|
playbackThread->destroyTrack_l(this);
|
|
}
|
|
}
|
|
}
|
|
|
|
void AudioFlinger::PlaybackThread::Track::dump(char* buffer, size_t size)
|
|
{
|
|
snprintf(buffer, size, " %5d %5d %3u %3u %3u %04u %1d %1d %1d %5u %5u %5u %08x %08x\n",
|
|
mName - AudioMixer::TRACK0,
|
|
(mClient == NULL) ? getpid() : mClient->pid(),
|
|
mStreamType,
|
|
mFormat,
|
|
mCblk->channels,
|
|
mFrameCount,
|
|
mState,
|
|
mMute,
|
|
mFillingUpStatus,
|
|
mCblk->sampleRate,
|
|
mCblk->volume[0],
|
|
mCblk->volume[1],
|
|
mCblk->server,
|
|
mCblk->user);
|
|
}
|
|
|
|
status_t AudioFlinger::PlaybackThread::Track::getNextBuffer(AudioBufferProvider::Buffer* buffer)
|
|
{
|
|
audio_track_cblk_t* cblk = this->cblk();
|
|
uint32_t framesReady;
|
|
uint32_t framesReq = buffer->frameCount;
|
|
|
|
// Check if last stepServer failed, try to step now
|
|
if (mFlags & TrackBase::STEPSERVER_FAILED) {
|
|
if (!step()) goto getNextBuffer_exit;
|
|
LOGV("stepServer recovered");
|
|
mFlags &= ~TrackBase::STEPSERVER_FAILED;
|
|
}
|
|
|
|
framesReady = cblk->framesReady();
|
|
|
|
if (LIKELY(framesReady)) {
|
|
uint32_t s = cblk->server;
|
|
uint32_t bufferEnd = cblk->serverBase + cblk->frameCount;
|
|
|
|
bufferEnd = (cblk->loopEnd < bufferEnd) ? cblk->loopEnd : bufferEnd;
|
|
if (framesReq > framesReady) {
|
|
framesReq = framesReady;
|
|
}
|
|
if (s + framesReq > bufferEnd) {
|
|
framesReq = bufferEnd - s;
|
|
}
|
|
|
|
buffer->raw = getBuffer(s, framesReq);
|
|
if (buffer->raw == 0) goto getNextBuffer_exit;
|
|
|
|
buffer->frameCount = framesReq;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
getNextBuffer_exit:
|
|
buffer->raw = 0;
|
|
buffer->frameCount = 0;
|
|
LOGV("getNextBuffer() no more data for track %d on thread %p", mName, mThread.unsafe_get());
|
|
return NOT_ENOUGH_DATA;
|
|
}
|
|
|
|
bool AudioFlinger::PlaybackThread::Track::isReady() const {
|
|
if (mFillingUpStatus != FS_FILLING) return true;
|
|
|
|
if (mCblk->framesReady() >= mCblk->frameCount ||
|
|
mCblk->forceReady) {
|
|
mFillingUpStatus = FS_FILLED;
|
|
mCblk->forceReady = 0;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
status_t AudioFlinger::PlaybackThread::Track::start()
|
|
{
|
|
status_t status = NO_ERROR;
|
|
LOGV("start(%d), calling thread %d", mName, IPCThreadState::self()->getCallingPid());
|
|
sp<ThreadBase> thread = mThread.promote();
|
|
if (thread != 0) {
|
|
Mutex::Autolock _l(thread->mLock);
|
|
int state = mState;
|
|
// here the track could be either new, or restarted
|
|
// in both cases "unstop" the track
|
|
if (mState == PAUSED) {
|
|
mState = TrackBase::RESUMING;
|
|
LOGV("PAUSED => RESUMING (%d) on thread %p", mName, this);
|
|
} else {
|
|
mState = TrackBase::ACTIVE;
|
|
LOGV("? => ACTIVE (%d) on thread %p", mName, this);
|
|
}
|
|
|
|
if (!isOutputTrack() && state != ACTIVE && state != RESUMING) {
|
|
thread->mLock.unlock();
|
|
status = AudioSystem::startOutput(thread->id(), (AudioSystem::stream_type)mStreamType);
|
|
thread->mLock.lock();
|
|
}
|
|
if (status == NO_ERROR) {
|
|
PlaybackThread *playbackThread = (PlaybackThread *)thread.get();
|
|
playbackThread->addTrack_l(this);
|
|
} else {
|
|
mState = state;
|
|
}
|
|
} else {
|
|
status = BAD_VALUE;
|
|
}
|
|
return status;
|
|
}
|
|
|
|
void AudioFlinger::PlaybackThread::Track::stop()
|
|
{
|
|
LOGV("stop(%d), calling thread %d", mName, IPCThreadState::self()->getCallingPid());
|
|
sp<ThreadBase> thread = mThread.promote();
|
|
if (thread != 0) {
|
|
Mutex::Autolock _l(thread->mLock);
|
|
int state = mState;
|
|
if (mState > STOPPED) {
|
|
mState = STOPPED;
|
|
// If the track is not active (PAUSED and buffers full), flush buffers
|
|
PlaybackThread *playbackThread = (PlaybackThread *)thread.get();
|
|
if (playbackThread->mActiveTracks.indexOf(this) < 0) {
|
|
reset();
|
|
}
|
|
LOGV("(> STOPPED) => STOPPED (%d) on thread %p", mName, playbackThread);
|
|
}
|
|
if (!isOutputTrack() && (state == ACTIVE || state == RESUMING)) {
|
|
thread->mLock.unlock();
|
|
AudioSystem::stopOutput(thread->id(), (AudioSystem::stream_type)mStreamType);
|
|
thread->mLock.lock();
|
|
}
|
|
}
|
|
}
|
|
|
|
void AudioFlinger::PlaybackThread::Track::pause()
|
|
{
|
|
LOGV("pause(%d), calling thread %d", mName, IPCThreadState::self()->getCallingPid());
|
|
sp<ThreadBase> thread = mThread.promote();
|
|
if (thread != 0) {
|
|
Mutex::Autolock _l(thread->mLock);
|
|
if (mState == ACTIVE || mState == RESUMING) {
|
|
mState = PAUSING;
|
|
LOGV("ACTIVE/RESUMING => PAUSING (%d) on thread %p", mName, thread.get());
|
|
if (!isOutputTrack()) {
|
|
thread->mLock.unlock();
|
|
AudioSystem::stopOutput(thread->id(), (AudioSystem::stream_type)mStreamType);
|
|
thread->mLock.lock();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void AudioFlinger::PlaybackThread::Track::flush()
|
|
{
|
|
LOGV("flush(%d)", mName);
|
|
sp<ThreadBase> thread = mThread.promote();
|
|
if (thread != 0) {
|
|
Mutex::Autolock _l(thread->mLock);
|
|
if (mState != STOPPED && mState != PAUSED && mState != PAUSING) {
|
|
return;
|
|
}
|
|
// No point remaining in PAUSED state after a flush => go to
|
|
// STOPPED state
|
|
mState = STOPPED;
|
|
|
|
mCblk->lock.lock();
|
|
// NOTE: reset() will reset cblk->user and cblk->server with
|
|
// the risk that at the same time, the AudioMixer is trying to read
|
|
// data. In this case, getNextBuffer() would return a NULL pointer
|
|
// as audio buffer => the AudioMixer code MUST always test that pointer
|
|
// returned by getNextBuffer() is not NULL!
|
|
reset();
|
|
mCblk->lock.unlock();
|
|
}
|
|
}
|
|
|
|
void AudioFlinger::PlaybackThread::Track::reset()
|
|
{
|
|
// Do not reset twice to avoid discarding data written just after a flush and before
|
|
// the audioflinger thread detects the track is stopped.
|
|
if (!mResetDone) {
|
|
TrackBase::reset();
|
|
// Force underrun condition to avoid false underrun callback until first data is
|
|
// written to buffer
|
|
mCblk->flowControlFlag = 1;
|
|
mCblk->forceReady = 0;
|
|
mFillingUpStatus = FS_FILLING;
|
|
mResetDone = true;
|
|
}
|
|
}
|
|
|
|
void AudioFlinger::PlaybackThread::Track::mute(bool muted)
|
|
{
|
|
mMute = muted;
|
|
}
|
|
|
|
void AudioFlinger::PlaybackThread::Track::setVolume(float left, float right)
|
|
{
|
|
mVolume[0] = left;
|
|
mVolume[1] = right;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// RecordTrack constructor must be called with AudioFlinger::mLock held
|
|
AudioFlinger::RecordThread::RecordTrack::RecordTrack(
|
|
const wp<ThreadBase>& thread,
|
|
const sp<Client>& client,
|
|
uint32_t sampleRate,
|
|
int format,
|
|
int channelCount,
|
|
int frameCount,
|
|
uint32_t flags)
|
|
: TrackBase(thread, client, sampleRate, format,
|
|
channelCount, frameCount, flags, 0),
|
|
mOverflow(false)
|
|
{
|
|
if (mCblk != NULL) {
|
|
LOGV("RecordTrack constructor, size %d", (int)mBufferEnd - (int)mBuffer);
|
|
if (format == AudioSystem::PCM_16_BIT) {
|
|
mCblk->frameSize = channelCount * sizeof(int16_t);
|
|
} else if (format == AudioSystem::PCM_8_BIT) {
|
|
mCblk->frameSize = channelCount * sizeof(int8_t);
|
|
} else {
|
|
mCblk->frameSize = sizeof(int8_t);
|
|
}
|
|
}
|
|
}
|
|
|
|
AudioFlinger::RecordThread::RecordTrack::~RecordTrack()
|
|
{
|
|
sp<ThreadBase> thread = mThread.promote();
|
|
if (thread != 0) {
|
|
AudioSystem::releaseInput(thread->id());
|
|
}
|
|
}
|
|
|
|
status_t AudioFlinger::RecordThread::RecordTrack::getNextBuffer(AudioBufferProvider::Buffer* buffer)
|
|
{
|
|
audio_track_cblk_t* cblk = this->cblk();
|
|
uint32_t framesAvail;
|
|
uint32_t framesReq = buffer->frameCount;
|
|
|
|
// Check if last stepServer failed, try to step now
|
|
if (mFlags & TrackBase::STEPSERVER_FAILED) {
|
|
if (!step()) goto getNextBuffer_exit;
|
|
LOGV("stepServer recovered");
|
|
mFlags &= ~TrackBase::STEPSERVER_FAILED;
|
|
}
|
|
|
|
framesAvail = cblk->framesAvailable_l();
|
|
|
|
if (LIKELY(framesAvail)) {
|
|
uint32_t s = cblk->server;
|
|
uint32_t bufferEnd = cblk->serverBase + cblk->frameCount;
|
|
|
|
if (framesReq > framesAvail) {
|
|
framesReq = framesAvail;
|
|
}
|
|
if (s + framesReq > bufferEnd) {
|
|
framesReq = bufferEnd - s;
|
|
}
|
|
|
|
buffer->raw = getBuffer(s, framesReq);
|
|
if (buffer->raw == 0) goto getNextBuffer_exit;
|
|
|
|
buffer->frameCount = framesReq;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
getNextBuffer_exit:
|
|
buffer->raw = 0;
|
|
buffer->frameCount = 0;
|
|
return NOT_ENOUGH_DATA;
|
|
}
|
|
|
|
status_t AudioFlinger::RecordThread::RecordTrack::start()
|
|
{
|
|
sp<ThreadBase> thread = mThread.promote();
|
|
if (thread != 0) {
|
|
RecordThread *recordThread = (RecordThread *)thread.get();
|
|
return recordThread->start(this);
|
|
} else {
|
|
return BAD_VALUE;
|
|
}
|
|
}
|
|
|
|
void AudioFlinger::RecordThread::RecordTrack::stop()
|
|
{
|
|
sp<ThreadBase> thread = mThread.promote();
|
|
if (thread != 0) {
|
|
RecordThread *recordThread = (RecordThread *)thread.get();
|
|
recordThread->stop(this);
|
|
TrackBase::reset();
|
|
// Force overerrun condition to avoid false overrun callback until first data is
|
|
// read from buffer
|
|
mCblk->flowControlFlag = 1;
|
|
}
|
|
}
|
|
|
|
void AudioFlinger::RecordThread::RecordTrack::dump(char* buffer, size_t size)
|
|
{
|
|
snprintf(buffer, size, " %05d %03u %03u %04u %01d %05u %08x %08x\n",
|
|
(mClient == NULL) ? getpid() : mClient->pid(),
|
|
mFormat,
|
|
mCblk->channels,
|
|
mFrameCount,
|
|
mState,
|
|
mCblk->sampleRate,
|
|
mCblk->server,
|
|
mCblk->user);
|
|
}
|
|
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
AudioFlinger::PlaybackThread::OutputTrack::OutputTrack(
|
|
const wp<ThreadBase>& thread,
|
|
DuplicatingThread *sourceThread,
|
|
uint32_t sampleRate,
|
|
int format,
|
|
int channelCount,
|
|
int frameCount)
|
|
: Track(thread, NULL, AudioSystem::NUM_STREAM_TYPES, sampleRate, format, channelCount, frameCount, NULL),
|
|
mActive(false), mSourceThread(sourceThread)
|
|
{
|
|
|
|
PlaybackThread *playbackThread = (PlaybackThread *)thread.unsafe_get();
|
|
if (mCblk != NULL) {
|
|
mCblk->out = 1;
|
|
mCblk->buffers = (char*)mCblk + sizeof(audio_track_cblk_t);
|
|
mCblk->volume[0] = mCblk->volume[1] = 0x1000;
|
|
mOutBuffer.frameCount = 0;
|
|
playbackThread->mTracks.add(this);
|
|
LOGV("OutputTrack constructor mCblk %p, mBuffer %p, mCblk->buffers %p, mCblk->frameCount %d, mCblk->sampleRate %d, mCblk->channels %d mBufferEnd %p",
|
|
mCblk, mBuffer, mCblk->buffers, mCblk->frameCount, mCblk->sampleRate, mCblk->channels, mBufferEnd);
|
|
} else {
|
|
LOGW("Error creating output track on thread %p", playbackThread);
|
|
}
|
|
}
|
|
|
|
AudioFlinger::PlaybackThread::OutputTrack::~OutputTrack()
|
|
{
|
|
clearBufferQueue();
|
|
}
|
|
|
|
status_t AudioFlinger::PlaybackThread::OutputTrack::start()
|
|
{
|
|
status_t status = Track::start();
|
|
if (status != NO_ERROR) {
|
|
return status;
|
|
}
|
|
|
|
mActive = true;
|
|
mRetryCount = 127;
|
|
return status;
|
|
}
|
|
|
|
void AudioFlinger::PlaybackThread::OutputTrack::stop()
|
|
{
|
|
Track::stop();
|
|
clearBufferQueue();
|
|
mOutBuffer.frameCount = 0;
|
|
mActive = false;
|
|
}
|
|
|
|
bool AudioFlinger::PlaybackThread::OutputTrack::write(int16_t* data, uint32_t frames)
|
|
{
|
|
Buffer *pInBuffer;
|
|
Buffer inBuffer;
|
|
uint32_t channels = mCblk->channels;
|
|
bool outputBufferFull = false;
|
|
inBuffer.frameCount = frames;
|
|
inBuffer.i16 = data;
|
|
|
|
uint32_t waitTimeLeftMs = mSourceThread->waitTimeMs();
|
|
|
|
if (!mActive && frames != 0) {
|
|
start();
|
|
sp<ThreadBase> thread = mThread.promote();
|
|
if (thread != 0) {
|
|
MixerThread *mixerThread = (MixerThread *)thread.get();
|
|
if (mCblk->frameCount > frames){
|
|
if (mBufferQueue.size() < kMaxOverFlowBuffers) {
|
|
uint32_t startFrames = (mCblk->frameCount - frames);
|
|
pInBuffer = new Buffer;
|
|
pInBuffer->mBuffer = new int16_t[startFrames * channels];
|
|
pInBuffer->frameCount = startFrames;
|
|
pInBuffer->i16 = pInBuffer->mBuffer;
|
|
memset(pInBuffer->raw, 0, startFrames * channels * sizeof(int16_t));
|
|
mBufferQueue.add(pInBuffer);
|
|
} else {
|
|
LOGW ("OutputTrack::write() %p no more buffers in queue", this);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
while (waitTimeLeftMs) {
|
|
// First write pending buffers, then new data
|
|
if (mBufferQueue.size()) {
|
|
pInBuffer = mBufferQueue.itemAt(0);
|
|
} else {
|
|
pInBuffer = &inBuffer;
|
|
}
|
|
|
|
if (pInBuffer->frameCount == 0) {
|
|
break;
|
|
}
|
|
|
|
if (mOutBuffer.frameCount == 0) {
|
|
mOutBuffer.frameCount = pInBuffer->frameCount;
|
|
nsecs_t startTime = systemTime();
|
|
if (obtainBuffer(&mOutBuffer, waitTimeLeftMs) == (status_t)AudioTrack::NO_MORE_BUFFERS) {
|
|
LOGV ("OutputTrack::write() %p thread %p no more output buffers", this, mThread.unsafe_get());
|
|
outputBufferFull = true;
|
|
break;
|
|
}
|
|
uint32_t waitTimeMs = (uint32_t)ns2ms(systemTime() - startTime);
|
|
if (waitTimeLeftMs >= waitTimeMs) {
|
|
waitTimeLeftMs -= waitTimeMs;
|
|
} else {
|
|
waitTimeLeftMs = 0;
|
|
}
|
|
}
|
|
|
|
uint32_t outFrames = pInBuffer->frameCount > mOutBuffer.frameCount ? mOutBuffer.frameCount : pInBuffer->frameCount;
|
|
memcpy(mOutBuffer.raw, pInBuffer->raw, outFrames * channels * sizeof(int16_t));
|
|
mCblk->stepUser(outFrames);
|
|
pInBuffer->frameCount -= outFrames;
|
|
pInBuffer->i16 += outFrames * channels;
|
|
mOutBuffer.frameCount -= outFrames;
|
|
mOutBuffer.i16 += outFrames * channels;
|
|
|
|
if (pInBuffer->frameCount == 0) {
|
|
if (mBufferQueue.size()) {
|
|
mBufferQueue.removeAt(0);
|
|
delete [] pInBuffer->mBuffer;
|
|
delete pInBuffer;
|
|
LOGV("OutputTrack::write() %p thread %p released overflow buffer %d", this, mThread.unsafe_get(), mBufferQueue.size());
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// If we could not write all frames, allocate a buffer and queue it for next time.
|
|
if (inBuffer.frameCount) {
|
|
sp<ThreadBase> thread = mThread.promote();
|
|
if (thread != 0 && !thread->standby()) {
|
|
if (mBufferQueue.size() < kMaxOverFlowBuffers) {
|
|
pInBuffer = new Buffer;
|
|
pInBuffer->mBuffer = new int16_t[inBuffer.frameCount * channels];
|
|
pInBuffer->frameCount = inBuffer.frameCount;
|
|
pInBuffer->i16 = pInBuffer->mBuffer;
|
|
memcpy(pInBuffer->raw, inBuffer.raw, inBuffer.frameCount * channels * sizeof(int16_t));
|
|
mBufferQueue.add(pInBuffer);
|
|
LOGV("OutputTrack::write() %p thread %p adding overflow buffer %d", this, mThread.unsafe_get(), mBufferQueue.size());
|
|
} else {
|
|
LOGW("OutputTrack::write() %p thread %p no more overflow buffers", mThread.unsafe_get(), this);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Calling write() with a 0 length buffer, means that no more data will be written:
|
|
// If no more buffers are pending, fill output track buffer to make sure it is started
|
|
// by output mixer.
|
|
if (frames == 0 && mBufferQueue.size() == 0) {
|
|
if (mCblk->user < mCblk->frameCount) {
|
|
frames = mCblk->frameCount - mCblk->user;
|
|
pInBuffer = new Buffer;
|
|
pInBuffer->mBuffer = new int16_t[frames * channels];
|
|
pInBuffer->frameCount = frames;
|
|
pInBuffer->i16 = pInBuffer->mBuffer;
|
|
memset(pInBuffer->raw, 0, frames * channels * sizeof(int16_t));
|
|
mBufferQueue.add(pInBuffer);
|
|
} else if (mActive) {
|
|
stop();
|
|
}
|
|
}
|
|
|
|
return outputBufferFull;
|
|
}
|
|
|
|
status_t AudioFlinger::PlaybackThread::OutputTrack::obtainBuffer(AudioBufferProvider::Buffer* buffer, uint32_t waitTimeMs)
|
|
{
|
|
int active;
|
|
status_t result;
|
|
audio_track_cblk_t* cblk = mCblk;
|
|
uint32_t framesReq = buffer->frameCount;
|
|
|
|
// LOGV("OutputTrack::obtainBuffer user %d, server %d", cblk->user, cblk->server);
|
|
buffer->frameCount = 0;
|
|
|
|
uint32_t framesAvail = cblk->framesAvailable();
|
|
|
|
|
|
if (framesAvail == 0) {
|
|
Mutex::Autolock _l(cblk->lock);
|
|
goto start_loop_here;
|
|
while (framesAvail == 0) {
|
|
active = mActive;
|
|
if (UNLIKELY(!active)) {
|
|
LOGV("Not active and NO_MORE_BUFFERS");
|
|
return AudioTrack::NO_MORE_BUFFERS;
|
|
}
|
|
result = cblk->cv.waitRelative(cblk->lock, milliseconds(waitTimeMs));
|
|
if (result != NO_ERROR) {
|
|
return AudioTrack::NO_MORE_BUFFERS;
|
|
}
|
|
// read the server count again
|
|
start_loop_here:
|
|
framesAvail = cblk->framesAvailable_l();
|
|
}
|
|
}
|
|
|
|
// if (framesAvail < framesReq) {
|
|
// return AudioTrack::NO_MORE_BUFFERS;
|
|
// }
|
|
|
|
if (framesReq > framesAvail) {
|
|
framesReq = framesAvail;
|
|
}
|
|
|
|
uint32_t u = cblk->user;
|
|
uint32_t bufferEnd = cblk->userBase + cblk->frameCount;
|
|
|
|
if (u + framesReq > bufferEnd) {
|
|
framesReq = bufferEnd - u;
|
|
}
|
|
|
|
buffer->frameCount = framesReq;
|
|
buffer->raw = (void *)cblk->buffer(u);
|
|
return NO_ERROR;
|
|
}
|
|
|
|
|
|
void AudioFlinger::PlaybackThread::OutputTrack::clearBufferQueue()
|
|
{
|
|
size_t size = mBufferQueue.size();
|
|
Buffer *pBuffer;
|
|
|
|
for (size_t i = 0; i < size; i++) {
|
|
pBuffer = mBufferQueue.itemAt(i);
|
|
delete [] pBuffer->mBuffer;
|
|
delete pBuffer;
|
|
}
|
|
mBufferQueue.clear();
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
AudioFlinger::Client::Client(const sp<AudioFlinger>& audioFlinger, pid_t pid)
|
|
: RefBase(),
|
|
mAudioFlinger(audioFlinger),
|
|
mMemoryDealer(new MemoryDealer(1024*1024, "AudioFlinger::Client")),
|
|
mPid(pid)
|
|
{
|
|
// 1 MB of address space is good for 32 tracks, 8 buffers each, 4 KB/buffer
|
|
}
|
|
|
|
// Client destructor must be called with AudioFlinger::mLock held
|
|
AudioFlinger::Client::~Client()
|
|
{
|
|
mAudioFlinger->removeClient_l(mPid);
|
|
}
|
|
|
|
const sp<MemoryDealer>& AudioFlinger::Client::heap() const
|
|
{
|
|
return mMemoryDealer;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
AudioFlinger::TrackHandle::TrackHandle(const sp<AudioFlinger::PlaybackThread::Track>& track)
|
|
: BnAudioTrack(),
|
|
mTrack(track)
|
|
{
|
|
}
|
|
|
|
AudioFlinger::TrackHandle::~TrackHandle() {
|
|
// just stop the track on deletion, associated resources
|
|
// will be freed from the main thread once all pending buffers have
|
|
// been played. Unless it's not in the active track list, in which
|
|
// case we free everything now...
|
|
mTrack->destroy();
|
|
}
|
|
|
|
status_t AudioFlinger::TrackHandle::start() {
|
|
return mTrack->start();
|
|
}
|
|
|
|
void AudioFlinger::TrackHandle::stop() {
|
|
mTrack->stop();
|
|
}
|
|
|
|
void AudioFlinger::TrackHandle::flush() {
|
|
mTrack->flush();
|
|
}
|
|
|
|
void AudioFlinger::TrackHandle::mute(bool e) {
|
|
mTrack->mute(e);
|
|
}
|
|
|
|
void AudioFlinger::TrackHandle::pause() {
|
|
mTrack->pause();
|
|
}
|
|
|
|
void AudioFlinger::TrackHandle::setVolume(float left, float right) {
|
|
mTrack->setVolume(left, right);
|
|
}
|
|
|
|
sp<IMemory> AudioFlinger::TrackHandle::getCblk() const {
|
|
return mTrack->getCblk();
|
|
}
|
|
|
|
status_t AudioFlinger::TrackHandle::onTransact(
|
|
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
|
|
{
|
|
return BnAudioTrack::onTransact(code, data, reply, flags);
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
sp<IAudioRecord> AudioFlinger::openRecord(
|
|
pid_t pid,
|
|
int input,
|
|
uint32_t sampleRate,
|
|
int format,
|
|
int channelCount,
|
|
int frameCount,
|
|
uint32_t flags,
|
|
status_t *status)
|
|
{
|
|
sp<RecordThread::RecordTrack> recordTrack;
|
|
sp<RecordHandle> recordHandle;
|
|
sp<Client> client;
|
|
wp<Client> wclient;
|
|
status_t lStatus;
|
|
RecordThread *thread;
|
|
size_t inFrameCount;
|
|
|
|
// check calling permissions
|
|
if (!recordingAllowed()) {
|
|
lStatus = PERMISSION_DENIED;
|
|
goto Exit;
|
|
}
|
|
|
|
// add client to list
|
|
{ // scope for mLock
|
|
Mutex::Autolock _l(mLock);
|
|
thread = checkRecordThread_l(input);
|
|
if (thread == NULL) {
|
|
lStatus = BAD_VALUE;
|
|
goto Exit;
|
|
}
|
|
|
|
wclient = mClients.valueFor(pid);
|
|
if (wclient != NULL) {
|
|
client = wclient.promote();
|
|
} else {
|
|
client = new Client(this, pid);
|
|
mClients.add(pid, client);
|
|
}
|
|
|
|
// create new record track. The record track uses one track in mHardwareMixerThread by convention.
|
|
recordTrack = new RecordThread::RecordTrack(thread, client, sampleRate,
|
|
format, channelCount, frameCount, flags);
|
|
}
|
|
if (recordTrack->getCblk() == NULL) {
|
|
// remove local strong reference to Client before deleting the RecordTrack so that the Client
|
|
// destructor is called by the TrackBase destructor with mLock held
|
|
client.clear();
|
|
recordTrack.clear();
|
|
lStatus = NO_MEMORY;
|
|
goto Exit;
|
|
}
|
|
|
|
// return to handle to client
|
|
recordHandle = new RecordHandle(recordTrack);
|
|
lStatus = NO_ERROR;
|
|
|
|
Exit:
|
|
if (status) {
|
|
*status = lStatus;
|
|
}
|
|
return recordHandle;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
AudioFlinger::RecordHandle::RecordHandle(const sp<AudioFlinger::RecordThread::RecordTrack>& recordTrack)
|
|
: BnAudioRecord(),
|
|
mRecordTrack(recordTrack)
|
|
{
|
|
}
|
|
|
|
AudioFlinger::RecordHandle::~RecordHandle() {
|
|
stop();
|
|
}
|
|
|
|
status_t AudioFlinger::RecordHandle::start() {
|
|
LOGV("RecordHandle::start()");
|
|
return mRecordTrack->start();
|
|
}
|
|
|
|
void AudioFlinger::RecordHandle::stop() {
|
|
LOGV("RecordHandle::stop()");
|
|
mRecordTrack->stop();
|
|
}
|
|
|
|
sp<IMemory> AudioFlinger::RecordHandle::getCblk() const {
|
|
return mRecordTrack->getCblk();
|
|
}
|
|
|
|
status_t AudioFlinger::RecordHandle::onTransact(
|
|
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
|
|
{
|
|
return BnAudioRecord::onTransact(code, data, reply, flags);
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
AudioFlinger::RecordThread::RecordThread(const sp<AudioFlinger>& audioFlinger, AudioStreamIn *input, uint32_t sampleRate, uint32_t channels, int id) :
|
|
ThreadBase(audioFlinger, id),
|
|
mInput(input), mResampler(0), mRsmpOutBuffer(0), mRsmpInBuffer(0)
|
|
{
|
|
mReqChannelCount = AudioSystem::popCount(channels);
|
|
mReqSampleRate = sampleRate;
|
|
readInputParameters();
|
|
sendConfigEvent(AudioSystem::INPUT_OPENED);
|
|
}
|
|
|
|
|
|
AudioFlinger::RecordThread::~RecordThread()
|
|
{
|
|
delete[] mRsmpInBuffer;
|
|
if (mResampler != 0) {
|
|
delete mResampler;
|
|
delete[] mRsmpOutBuffer;
|
|
}
|
|
}
|
|
|
|
void AudioFlinger::RecordThread::onFirstRef()
|
|
{
|
|
const size_t SIZE = 256;
|
|
char buffer[SIZE];
|
|
|
|
snprintf(buffer, SIZE, "Record Thread %p", this);
|
|
|
|
run(buffer, PRIORITY_URGENT_AUDIO);
|
|
}
|
|
|
|
bool AudioFlinger::RecordThread::threadLoop()
|
|
{
|
|
AudioBufferProvider::Buffer buffer;
|
|
sp<RecordTrack> activeTrack;
|
|
|
|
// start recording
|
|
while (!exitPending()) {
|
|
|
|
processConfigEvents();
|
|
|
|
{ // scope for mLock
|
|
Mutex::Autolock _l(mLock);
|
|
checkForNewParameters_l();
|
|
if (mActiveTrack == 0 && mConfigEvents.isEmpty()) {
|
|
if (!mStandby) {
|
|
mInput->standby();
|
|
mStandby = true;
|
|
}
|
|
|
|
if (exitPending()) break;
|
|
|
|
LOGV("RecordThread: loop stopping");
|
|
// go to sleep
|
|
mWaitWorkCV.wait(mLock);
|
|
LOGV("RecordThread: loop starting");
|
|
continue;
|
|
}
|
|
if (mActiveTrack != 0) {
|
|
if (mActiveTrack->mState == TrackBase::PAUSING) {
|
|
if (!mStandby) {
|
|
mInput->standby();
|
|
mStandby = true;
|
|
}
|
|
mActiveTrack.clear();
|
|
mStartStopCond.broadcast();
|
|
} else if (mActiveTrack->mState == TrackBase::RESUMING) {
|
|
if (mReqChannelCount != mActiveTrack->channelCount()) {
|
|
mActiveTrack.clear();
|
|
mStartStopCond.broadcast();
|
|
} else if (mBytesRead != 0) {
|
|
// record start succeeds only if first read from audio input
|
|
// succeeds
|
|
if (mBytesRead > 0) {
|
|
mActiveTrack->mState = TrackBase::ACTIVE;
|
|
} else {
|
|
mActiveTrack.clear();
|
|
}
|
|
mStartStopCond.broadcast();
|
|
}
|
|
mStandby = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (mActiveTrack != 0) {
|
|
if (mActiveTrack->mState != TrackBase::ACTIVE &&
|
|
mActiveTrack->mState != TrackBase::RESUMING) {
|
|
usleep(5000);
|
|
continue;
|
|
}
|
|
buffer.frameCount = mFrameCount;
|
|
if (LIKELY(mActiveTrack->getNextBuffer(&buffer) == NO_ERROR)) {
|
|
size_t framesOut = buffer.frameCount;
|
|
if (mResampler == 0) {
|
|
// no resampling
|
|
while (framesOut) {
|
|
size_t framesIn = mFrameCount - mRsmpInIndex;
|
|
if (framesIn) {
|
|
int8_t *src = (int8_t *)mRsmpInBuffer + mRsmpInIndex * mFrameSize;
|
|
int8_t *dst = buffer.i8 + (buffer.frameCount - framesOut) * mActiveTrack->mCblk->frameSize;
|
|
if (framesIn > framesOut)
|
|
framesIn = framesOut;
|
|
mRsmpInIndex += framesIn;
|
|
framesOut -= framesIn;
|
|
if (mChannelCount == mReqChannelCount ||
|
|
mFormat != AudioSystem::PCM_16_BIT) {
|
|
memcpy(dst, src, framesIn * mFrameSize);
|
|
} else {
|
|
int16_t *src16 = (int16_t *)src;
|
|
int16_t *dst16 = (int16_t *)dst;
|
|
if (mChannelCount == 1) {
|
|
while (framesIn--) {
|
|
*dst16++ = *src16;
|
|
*dst16++ = *src16++;
|
|
}
|
|
} else {
|
|
while (framesIn--) {
|
|
*dst16++ = (int16_t)(((int32_t)*src16 + (int32_t)*(src16 + 1)) >> 1);
|
|
src16 += 2;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (framesOut && mFrameCount == mRsmpInIndex) {
|
|
if (framesOut == mFrameCount &&
|
|
(mChannelCount == mReqChannelCount || mFormat != AudioSystem::PCM_16_BIT)) {
|
|
mBytesRead = mInput->read(buffer.raw, mInputBytes);
|
|
framesOut = 0;
|
|
} else {
|
|
mBytesRead = mInput->read(mRsmpInBuffer, mInputBytes);
|
|
mRsmpInIndex = 0;
|
|
}
|
|
if (mBytesRead < 0) {
|
|
LOGE("Error reading audio input");
|
|
if (mActiveTrack->mState == TrackBase::ACTIVE) {
|
|
// Force input into standby so that it tries to
|
|
// recover at next read attempt
|
|
mInput->standby();
|
|
usleep(5000);
|
|
}
|
|
mRsmpInIndex = mFrameCount;
|
|
framesOut = 0;
|
|
buffer.frameCount = 0;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
// resampling
|
|
|
|
memset(mRsmpOutBuffer, 0, framesOut * 2 * sizeof(int32_t));
|
|
// alter output frame count as if we were expecting stereo samples
|
|
if (mChannelCount == 1 && mReqChannelCount == 1) {
|
|
framesOut >>= 1;
|
|
}
|
|
mResampler->resample(mRsmpOutBuffer, framesOut, this);
|
|
// ditherAndClamp() works as long as all buffers returned by mActiveTrack->getNextBuffer()
|
|
// are 32 bit aligned which should be always true.
|
|
if (mChannelCount == 2 && mReqChannelCount == 1) {
|
|
AudioMixer::ditherAndClamp(mRsmpOutBuffer, mRsmpOutBuffer, framesOut);
|
|
// the resampler always outputs stereo samples: do post stereo to mono conversion
|
|
int16_t *src = (int16_t *)mRsmpOutBuffer;
|
|
int16_t *dst = buffer.i16;
|
|
while (framesOut--) {
|
|
*dst++ = (int16_t)(((int32_t)*src + (int32_t)*(src + 1)) >> 1);
|
|
src += 2;
|
|
}
|
|
} else {
|
|
AudioMixer::ditherAndClamp((int32_t *)buffer.raw, mRsmpOutBuffer, framesOut);
|
|
}
|
|
|
|
}
|
|
mActiveTrack->releaseBuffer(&buffer);
|
|
mActiveTrack->overflow();
|
|
}
|
|
// client isn't retrieving buffers fast enough
|
|
else {
|
|
if (!mActiveTrack->setOverflow())
|
|
LOGW("RecordThread: buffer overflow");
|
|
// Release the processor for a while before asking for a new buffer.
|
|
// This will give the application more chance to read from the buffer and
|
|
// clear the overflow.
|
|
usleep(5000);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!mStandby) {
|
|
mInput->standby();
|
|
}
|
|
mActiveTrack.clear();
|
|
|
|
mStartStopCond.broadcast();
|
|
|
|
LOGV("RecordThread %p exiting", this);
|
|
return false;
|
|
}
|
|
|
|
status_t AudioFlinger::RecordThread::start(RecordThread::RecordTrack* recordTrack)
|
|
{
|
|
LOGV("RecordThread::start");
|
|
sp <ThreadBase> strongMe = this;
|
|
status_t status = NO_ERROR;
|
|
{
|
|
AutoMutex lock(&mLock);
|
|
if (mActiveTrack != 0) {
|
|
if (recordTrack != mActiveTrack.get()) {
|
|
status = -EBUSY;
|
|
} else if (mActiveTrack->mState == TrackBase::PAUSING) {
|
|
mActiveTrack->mState = TrackBase::ACTIVE;
|
|
}
|
|
return status;
|
|
}
|
|
|
|
recordTrack->mState = TrackBase::IDLE;
|
|
mActiveTrack = recordTrack;
|
|
mLock.unlock();
|
|
status_t status = AudioSystem::startInput(mId);
|
|
mLock.lock();
|
|
if (status != NO_ERROR) {
|
|
mActiveTrack.clear();
|
|
return status;
|
|
}
|
|
mActiveTrack->mState = TrackBase::RESUMING;
|
|
mRsmpInIndex = mFrameCount;
|
|
mBytesRead = 0;
|
|
// signal thread to start
|
|
LOGV("Signal record thread");
|
|
mWaitWorkCV.signal();
|
|
// do not wait for mStartStopCond if exiting
|
|
if (mExiting) {
|
|
mActiveTrack.clear();
|
|
status = INVALID_OPERATION;
|
|
goto startError;
|
|
}
|
|
mStartStopCond.wait(mLock);
|
|
if (mActiveTrack == 0) {
|
|
LOGV("Record failed to start");
|
|
status = BAD_VALUE;
|
|
goto startError;
|
|
}
|
|
LOGV("Record started OK");
|
|
return status;
|
|
}
|
|
startError:
|
|
AudioSystem::stopInput(mId);
|
|
return status;
|
|
}
|
|
|
|
void AudioFlinger::RecordThread::stop(RecordThread::RecordTrack* recordTrack) {
|
|
LOGV("RecordThread::stop");
|
|
sp <ThreadBase> strongMe = this;
|
|
{
|
|
AutoMutex lock(&mLock);
|
|
if (mActiveTrack != 0 && recordTrack == mActiveTrack.get()) {
|
|
mActiveTrack->mState = TrackBase::PAUSING;
|
|
// do not wait for mStartStopCond if exiting
|
|
if (mExiting) {
|
|
return;
|
|
}
|
|
mStartStopCond.wait(mLock);
|
|
// if we have been restarted, recordTrack == mActiveTrack.get() here
|
|
if (mActiveTrack == 0 || recordTrack != mActiveTrack.get()) {
|
|
mLock.unlock();
|
|
AudioSystem::stopInput(mId);
|
|
mLock.lock();
|
|
LOGV("Record stopped OK");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
status_t AudioFlinger::RecordThread::dump(int fd, const Vector<String16>& args)
|
|
{
|
|
const size_t SIZE = 256;
|
|
char buffer[SIZE];
|
|
String8 result;
|
|
pid_t pid = 0;
|
|
|
|
snprintf(buffer, SIZE, "\nInput thread %p internals\n", this);
|
|
result.append(buffer);
|
|
|
|
if (mActiveTrack != 0) {
|
|
result.append("Active Track:\n");
|
|
result.append(" Clien Fmt Chn Buf S SRate Serv User\n");
|
|
mActiveTrack->dump(buffer, SIZE);
|
|
result.append(buffer);
|
|
|
|
snprintf(buffer, SIZE, "In index: %d\n", mRsmpInIndex);
|
|
result.append(buffer);
|
|
snprintf(buffer, SIZE, "In size: %d\n", mInputBytes);
|
|
result.append(buffer);
|
|
snprintf(buffer, SIZE, "Resampling: %d\n", (mResampler != 0));
|
|
result.append(buffer);
|
|
snprintf(buffer, SIZE, "Out channel count: %d\n", mReqChannelCount);
|
|
result.append(buffer);
|
|
snprintf(buffer, SIZE, "Out sample rate: %d\n", mReqSampleRate);
|
|
result.append(buffer);
|
|
|
|
|
|
} else {
|
|
result.append("No record client\n");
|
|
}
|
|
write(fd, result.string(), result.size());
|
|
|
|
dumpBase(fd, args);
|
|
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t AudioFlinger::RecordThread::getNextBuffer(AudioBufferProvider::Buffer* buffer)
|
|
{
|
|
size_t framesReq = buffer->frameCount;
|
|
size_t framesReady = mFrameCount - mRsmpInIndex;
|
|
int channelCount;
|
|
|
|
if (framesReady == 0) {
|
|
mBytesRead = mInput->read(mRsmpInBuffer, mInputBytes);
|
|
if (mBytesRead < 0) {
|
|
LOGE("RecordThread::getNextBuffer() Error reading audio input");
|
|
if (mActiveTrack->mState == TrackBase::ACTIVE) {
|
|
// Force input into standby so that it tries to
|
|
// recover at next read attempt
|
|
mInput->standby();
|
|
usleep(5000);
|
|
}
|
|
buffer->raw = 0;
|
|
buffer->frameCount = 0;
|
|
return NOT_ENOUGH_DATA;
|
|
}
|
|
mRsmpInIndex = 0;
|
|
framesReady = mFrameCount;
|
|
}
|
|
|
|
if (framesReq > framesReady) {
|
|
framesReq = framesReady;
|
|
}
|
|
|
|
if (mChannelCount == 1 && mReqChannelCount == 2) {
|
|
channelCount = 1;
|
|
} else {
|
|
channelCount = 2;
|
|
}
|
|
buffer->raw = mRsmpInBuffer + mRsmpInIndex * channelCount;
|
|
buffer->frameCount = framesReq;
|
|
return NO_ERROR;
|
|
}
|
|
|
|
void AudioFlinger::RecordThread::releaseBuffer(AudioBufferProvider::Buffer* buffer)
|
|
{
|
|
mRsmpInIndex += buffer->frameCount;
|
|
buffer->frameCount = 0;
|
|
}
|
|
|
|
bool AudioFlinger::RecordThread::checkForNewParameters_l()
|
|
{
|
|
bool reconfig = false;
|
|
|
|
while (!mNewParameters.isEmpty()) {
|
|
status_t status = NO_ERROR;
|
|
String8 keyValuePair = mNewParameters[0];
|
|
AudioParameter param = AudioParameter(keyValuePair);
|
|
int value;
|
|
int reqFormat = mFormat;
|
|
int reqSamplingRate = mReqSampleRate;
|
|
int reqChannelCount = mReqChannelCount;
|
|
|
|
if (param.getInt(String8(AudioParameter::keySamplingRate), value) == NO_ERROR) {
|
|
reqSamplingRate = value;
|
|
reconfig = true;
|
|
}
|
|
if (param.getInt(String8(AudioParameter::keyFormat), value) == NO_ERROR) {
|
|
reqFormat = value;
|
|
reconfig = true;
|
|
}
|
|
if (param.getInt(String8(AudioParameter::keyChannels), value) == NO_ERROR) {
|
|
reqChannelCount = AudioSystem::popCount(value);
|
|
reconfig = true;
|
|
}
|
|
if (param.getInt(String8(AudioParameter::keyFrameCount), value) == NO_ERROR) {
|
|
// do not accept frame count changes if tracks are open as the track buffer
|
|
// size depends on frame count and correct behavior would not be garantied
|
|
// if frame count is changed after track creation
|
|
if (mActiveTrack != 0) {
|
|
status = INVALID_OPERATION;
|
|
} else {
|
|
reconfig = true;
|
|
}
|
|
}
|
|
if (status == NO_ERROR) {
|
|
status = mInput->setParameters(keyValuePair);
|
|
if (status == INVALID_OPERATION) {
|
|
mInput->standby();
|
|
status = mInput->setParameters(keyValuePair);
|
|
}
|
|
if (reconfig) {
|
|
if (status == BAD_VALUE &&
|
|
reqFormat == mInput->format() && reqFormat == AudioSystem::PCM_16_BIT &&
|
|
((int)mInput->sampleRate() <= 2 * reqSamplingRate) &&
|
|
(AudioSystem::popCount(mInput->channels()) < 3) && (reqChannelCount < 3)) {
|
|
status = NO_ERROR;
|
|
}
|
|
if (status == NO_ERROR) {
|
|
readInputParameters();
|
|
sendConfigEvent_l(AudioSystem::INPUT_CONFIG_CHANGED);
|
|
}
|
|
}
|
|
}
|
|
|
|
mNewParameters.removeAt(0);
|
|
|
|
mParamStatus = status;
|
|
mParamCond.signal();
|
|
mWaitWorkCV.wait(mLock);
|
|
}
|
|
return reconfig;
|
|
}
|
|
|
|
String8 AudioFlinger::RecordThread::getParameters(const String8& keys)
|
|
{
|
|
return mInput->getParameters(keys);
|
|
}
|
|
|
|
void AudioFlinger::RecordThread::audioConfigChanged(int event, int param) {
|
|
AudioSystem::OutputDescriptor desc;
|
|
void *param2 = 0;
|
|
|
|
switch (event) {
|
|
case AudioSystem::INPUT_OPENED:
|
|
case AudioSystem::INPUT_CONFIG_CHANGED:
|
|
desc.channels = mChannelCount;
|
|
desc.samplingRate = mSampleRate;
|
|
desc.format = mFormat;
|
|
desc.frameCount = mFrameCount;
|
|
desc.latency = 0;
|
|
param2 = &desc;
|
|
break;
|
|
|
|
case AudioSystem::INPUT_CLOSED:
|
|
default:
|
|
break;
|
|
}
|
|
Mutex::Autolock _l(mAudioFlinger->mLock);
|
|
mAudioFlinger->audioConfigChanged_l(event, mId, param2);
|
|
}
|
|
|
|
void AudioFlinger::RecordThread::readInputParameters()
|
|
{
|
|
if (mRsmpInBuffer) delete mRsmpInBuffer;
|
|
if (mRsmpOutBuffer) delete mRsmpOutBuffer;
|
|
if (mResampler) delete mResampler;
|
|
mResampler = 0;
|
|
|
|
mSampleRate = mInput->sampleRate();
|
|
mChannelCount = AudioSystem::popCount(mInput->channels());
|
|
mFormat = mInput->format();
|
|
mFrameSize = mInput->frameSize();
|
|
mInputBytes = mInput->bufferSize();
|
|
mFrameCount = mInputBytes / mFrameSize;
|
|
mRsmpInBuffer = new int16_t[mFrameCount * mChannelCount];
|
|
|
|
if (mSampleRate != mReqSampleRate && mChannelCount < 3 && mReqChannelCount < 3)
|
|
{
|
|
int channelCount;
|
|
// optmization: if mono to mono, use the resampler in stereo to stereo mode to avoid
|
|
// stereo to mono post process as the resampler always outputs stereo.
|
|
if (mChannelCount == 1 && mReqChannelCount == 2) {
|
|
channelCount = 1;
|
|
} else {
|
|
channelCount = 2;
|
|
}
|
|
mResampler = AudioResampler::create(16, channelCount, mReqSampleRate);
|
|
mResampler->setSampleRate(mSampleRate);
|
|
mResampler->setVolume(AudioMixer::UNITY_GAIN, AudioMixer::UNITY_GAIN);
|
|
mRsmpOutBuffer = new int32_t[mFrameCount * 2];
|
|
|
|
// optmization: if mono to mono, alter input frame count as if we were inputing stereo samples
|
|
if (mChannelCount == 1 && mReqChannelCount == 1) {
|
|
mFrameCount >>= 1;
|
|
}
|
|
|
|
}
|
|
mRsmpInIndex = mFrameCount;
|
|
}
|
|
|
|
unsigned int AudioFlinger::RecordThread::getInputFramesLost()
|
|
{
|
|
return mInput->getInputFramesLost();
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
int AudioFlinger::openOutput(uint32_t *pDevices,
|
|
uint32_t *pSamplingRate,
|
|
uint32_t *pFormat,
|
|
uint32_t *pChannels,
|
|
uint32_t *pLatencyMs,
|
|
uint32_t flags)
|
|
{
|
|
status_t status;
|
|
PlaybackThread *thread = NULL;
|
|
mHardwareStatus = AUDIO_HW_OUTPUT_OPEN;
|
|
uint32_t samplingRate = pSamplingRate ? *pSamplingRate : 0;
|
|
uint32_t format = pFormat ? *pFormat : 0;
|
|
uint32_t channels = pChannels ? *pChannels : 0;
|
|
uint32_t latency = pLatencyMs ? *pLatencyMs : 0;
|
|
|
|
LOGV("openOutput(), Device %x, SamplingRate %d, Format %d, Channels %x, flags %x",
|
|
pDevices ? *pDevices : 0,
|
|
samplingRate,
|
|
format,
|
|
channels,
|
|
flags);
|
|
|
|
if (pDevices == NULL || *pDevices == 0) {
|
|
return 0;
|
|
}
|
|
Mutex::Autolock _l(mLock);
|
|
|
|
AudioStreamOut *output = mAudioHardware->openOutputStream(*pDevices,
|
|
(int *)&format,
|
|
&channels,
|
|
&samplingRate,
|
|
&status);
|
|
LOGV("openOutput() openOutputStream returned output %p, SamplingRate %d, Format %d, Channels %x, status %d",
|
|
output,
|
|
samplingRate,
|
|
format,
|
|
channels,
|
|
status);
|
|
|
|
mHardwareStatus = AUDIO_HW_IDLE;
|
|
if (output != 0) {
|
|
if ((flags & AudioSystem::OUTPUT_FLAG_DIRECT) ||
|
|
(format != AudioSystem::PCM_16_BIT) ||
|
|
(channels != AudioSystem::CHANNEL_OUT_STEREO)) {
|
|
thread = new DirectOutputThread(this, output, ++mNextThreadId);
|
|
LOGV("openOutput() created direct output: ID %d thread %p", mNextThreadId, thread);
|
|
} else {
|
|
thread = new MixerThread(this, output, ++mNextThreadId);
|
|
LOGV("openOutput() created mixer output: ID %d thread %p", mNextThreadId, thread);
|
|
}
|
|
mPlaybackThreads.add(mNextThreadId, thread);
|
|
|
|
if (pSamplingRate) *pSamplingRate = samplingRate;
|
|
if (pFormat) *pFormat = format;
|
|
if (pChannels) *pChannels = channels;
|
|
if (pLatencyMs) *pLatencyMs = thread->latency();
|
|
|
|
return mNextThreadId;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int AudioFlinger::openDuplicateOutput(int output1, int output2)
|
|
{
|
|
Mutex::Autolock _l(mLock);
|
|
MixerThread *thread1 = checkMixerThread_l(output1);
|
|
MixerThread *thread2 = checkMixerThread_l(output2);
|
|
|
|
if (thread1 == NULL || thread2 == NULL) {
|
|
LOGW("openDuplicateOutput() wrong output mixer type for output %d or %d", output1, output2);
|
|
return 0;
|
|
}
|
|
|
|
|
|
DuplicatingThread *thread = new DuplicatingThread(this, thread1, ++mNextThreadId);
|
|
thread->addOutputTrack(thread2);
|
|
mPlaybackThreads.add(mNextThreadId, thread);
|
|
return mNextThreadId;
|
|
}
|
|
|
|
status_t AudioFlinger::closeOutput(int output)
|
|
{
|
|
// keep strong reference on the playback thread so that
|
|
// it is not destroyed while exit() is executed
|
|
sp <PlaybackThread> thread;
|
|
{
|
|
Mutex::Autolock _l(mLock);
|
|
thread = checkPlaybackThread_l(output);
|
|
if (thread == NULL) {
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
LOGV("closeOutput() %d", output);
|
|
|
|
if (thread->type() == PlaybackThread::MIXER) {
|
|
for (size_t i = 0; i < mPlaybackThreads.size(); i++) {
|
|
if (mPlaybackThreads.valueAt(i)->type() == PlaybackThread::DUPLICATING) {
|
|
DuplicatingThread *dupThread = (DuplicatingThread *)mPlaybackThreads.valueAt(i).get();
|
|
dupThread->removeOutputTrack((MixerThread *)thread.get());
|
|
}
|
|
}
|
|
}
|
|
void *param2 = 0;
|
|
audioConfigChanged_l(AudioSystem::OUTPUT_CLOSED, output, param2);
|
|
mPlaybackThreads.removeItem(output);
|
|
}
|
|
thread->exit();
|
|
|
|
if (thread->type() != PlaybackThread::DUPLICATING) {
|
|
mAudioHardware->closeOutputStream(thread->getOutput());
|
|
}
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t AudioFlinger::suspendOutput(int output)
|
|
{
|
|
Mutex::Autolock _l(mLock);
|
|
PlaybackThread *thread = checkPlaybackThread_l(output);
|
|
|
|
if (thread == NULL) {
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
LOGV("suspendOutput() %d", output);
|
|
thread->suspend();
|
|
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t AudioFlinger::restoreOutput(int output)
|
|
{
|
|
Mutex::Autolock _l(mLock);
|
|
PlaybackThread *thread = checkPlaybackThread_l(output);
|
|
|
|
if (thread == NULL) {
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
LOGV("restoreOutput() %d", output);
|
|
|
|
thread->restore();
|
|
|
|
return NO_ERROR;
|
|
}
|
|
|
|
int AudioFlinger::openInput(uint32_t *pDevices,
|
|
uint32_t *pSamplingRate,
|
|
uint32_t *pFormat,
|
|
uint32_t *pChannels,
|
|
uint32_t acoustics)
|
|
{
|
|
status_t status;
|
|
RecordThread *thread = NULL;
|
|
uint32_t samplingRate = pSamplingRate ? *pSamplingRate : 0;
|
|
uint32_t format = pFormat ? *pFormat : 0;
|
|
uint32_t channels = pChannels ? *pChannels : 0;
|
|
uint32_t reqSamplingRate = samplingRate;
|
|
uint32_t reqFormat = format;
|
|
uint32_t reqChannels = channels;
|
|
|
|
if (pDevices == NULL || *pDevices == 0) {
|
|
return 0;
|
|
}
|
|
Mutex::Autolock _l(mLock);
|
|
|
|
AudioStreamIn *input = mAudioHardware->openInputStream(*pDevices,
|
|
(int *)&format,
|
|
&channels,
|
|
&samplingRate,
|
|
&status,
|
|
(AudioSystem::audio_in_acoustics)acoustics);
|
|
LOGV("openInput() openInputStream returned input %p, SamplingRate %d, Format %d, Channels %x, acoustics %x, status %d",
|
|
input,
|
|
samplingRate,
|
|
format,
|
|
channels,
|
|
acoustics,
|
|
status);
|
|
|
|
// If the input could not be opened with the requested parameters and we can handle the conversion internally,
|
|
// try to open again with the proposed parameters. The AudioFlinger can resample the input and do mono to stereo
|
|
// or stereo to mono conversions on 16 bit PCM inputs.
|
|
if (input == 0 && status == BAD_VALUE &&
|
|
reqFormat == format && format == AudioSystem::PCM_16_BIT &&
|
|
(samplingRate <= 2 * reqSamplingRate) &&
|
|
(AudioSystem::popCount(channels) < 3) && (AudioSystem::popCount(reqChannels) < 3)) {
|
|
LOGV("openInput() reopening with proposed sampling rate and channels");
|
|
input = mAudioHardware->openInputStream(*pDevices,
|
|
(int *)&format,
|
|
&channels,
|
|
&samplingRate,
|
|
&status,
|
|
(AudioSystem::audio_in_acoustics)acoustics);
|
|
}
|
|
|
|
if (input != 0) {
|
|
// Start record thread
|
|
thread = new RecordThread(this, input, reqSamplingRate, reqChannels, ++mNextThreadId);
|
|
mRecordThreads.add(mNextThreadId, thread);
|
|
LOGV("openInput() created record thread: ID %d thread %p", mNextThreadId, thread);
|
|
if (pSamplingRate) *pSamplingRate = reqSamplingRate;
|
|
if (pFormat) *pFormat = format;
|
|
if (pChannels) *pChannels = reqChannels;
|
|
|
|
input->standby();
|
|
|
|
return mNextThreadId;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
status_t AudioFlinger::closeInput(int input)
|
|
{
|
|
// keep strong reference on the record thread so that
|
|
// it is not destroyed while exit() is executed
|
|
sp <RecordThread> thread;
|
|
{
|
|
Mutex::Autolock _l(mLock);
|
|
thread = checkRecordThread_l(input);
|
|
if (thread == NULL) {
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
LOGV("closeInput() %d", input);
|
|
void *param2 = 0;
|
|
audioConfigChanged_l(AudioSystem::INPUT_CLOSED, input, param2);
|
|
mRecordThreads.removeItem(input);
|
|
}
|
|
thread->exit();
|
|
|
|
mAudioHardware->closeInputStream(thread->getInput());
|
|
|
|
return NO_ERROR;
|
|
}
|
|
|
|
status_t AudioFlinger::setStreamOutput(uint32_t stream, int output)
|
|
{
|
|
Mutex::Autolock _l(mLock);
|
|
MixerThread *dstThread = checkMixerThread_l(output);
|
|
if (dstThread == NULL) {
|
|
LOGW("setStreamOutput() bad output id %d", output);
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
LOGV("setStreamOutput() stream %d to output %d", stream, output);
|
|
|
|
for (size_t i = 0; i < mPlaybackThreads.size(); i++) {
|
|
PlaybackThread *thread = mPlaybackThreads.valueAt(i).get();
|
|
if (thread != dstThread &&
|
|
thread->type() != PlaybackThread::DIRECT) {
|
|
MixerThread *srcThread = (MixerThread *)thread;
|
|
SortedVector < sp<MixerThread::Track> > tracks;
|
|
SortedVector < wp<MixerThread::Track> > activeTracks;
|
|
srcThread->getTracks(tracks, activeTracks, stream);
|
|
if (tracks.size()) {
|
|
dstThread->putTracks(tracks, activeTracks);
|
|
}
|
|
}
|
|
}
|
|
|
|
dstThread->sendConfigEvent(AudioSystem::STREAM_CONFIG_CHANGED, stream);
|
|
|
|
return NO_ERROR;
|
|
}
|
|
|
|
// checkPlaybackThread_l() must be called with AudioFlinger::mLock held
|
|
AudioFlinger::PlaybackThread *AudioFlinger::checkPlaybackThread_l(int output) const
|
|
{
|
|
PlaybackThread *thread = NULL;
|
|
if (mPlaybackThreads.indexOfKey(output) >= 0) {
|
|
thread = (PlaybackThread *)mPlaybackThreads.valueFor(output).get();
|
|
}
|
|
return thread;
|
|
}
|
|
|
|
// checkMixerThread_l() must be called with AudioFlinger::mLock held
|
|
AudioFlinger::MixerThread *AudioFlinger::checkMixerThread_l(int output) const
|
|
{
|
|
PlaybackThread *thread = checkPlaybackThread_l(output);
|
|
if (thread != NULL) {
|
|
if (thread->type() == PlaybackThread::DIRECT) {
|
|
thread = NULL;
|
|
}
|
|
}
|
|
return (MixerThread *)thread;
|
|
}
|
|
|
|
// checkRecordThread_l() must be called with AudioFlinger::mLock held
|
|
AudioFlinger::RecordThread *AudioFlinger::checkRecordThread_l(int input) const
|
|
{
|
|
RecordThread *thread = NULL;
|
|
if (mRecordThreads.indexOfKey(input) >= 0) {
|
|
thread = (RecordThread *)mRecordThreads.valueFor(input).get();
|
|
}
|
|
return thread;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
status_t AudioFlinger::onTransact(
|
|
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
|
|
{
|
|
return BnAudioFlinger::onTransact(code, data, reply, flags);
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void AudioFlinger::instantiate() {
|
|
defaultServiceManager()->addService(
|
|
String16("media.audio_flinger"), new AudioFlinger());
|
|
}
|
|
|
|
}; // namespace android
|