Add audio-haptic channel max amplitude
Add max amplitude setting from device vibrator service to the
AudioTrack, to be passed on to the ExternalVibrationUtils and
applied as a hard limit to clip haptic data above that amplitude,
after scaling.
Bug: 188025353
Test: manual
Change-Id: Ic83661c37a2e6109538c5905b97bed916920437e
diff --git a/media/libaudioclient/aidl/android/media/AudioVibratorInfo.aidl b/media/libaudioclient/aidl/android/media/AudioVibratorInfo.aidl
index f88fc3c..8538d8a 100644
--- a/media/libaudioclient/aidl/android/media/AudioVibratorInfo.aidl
+++ b/media/libaudioclient/aidl/android/media/AudioVibratorInfo.aidl
@@ -24,4 +24,5 @@
int id;
float resonantFrequency;
float qFactor;
+ float maxAmplitude;
}
diff --git a/media/libaudioprocessing/AudioMixer.cpp b/media/libaudioprocessing/AudioMixer.cpp
index d85e2e9..e68c002 100644
--- a/media/libaudioprocessing/AudioMixer.cpp
+++ b/media/libaudioprocessing/AudioMixer.cpp
@@ -434,6 +434,12 @@
track->mHapticIntensity = hapticIntensity;
}
} break;
+ case HAPTIC_MAX_AMPLITUDE: {
+ const float hapticMaxAmplitude = *reinterpret_cast<float*>(value);
+ if (track->mHapticMaxAmplitude != hapticMaxAmplitude) {
+ track->mHapticMaxAmplitude = hapticMaxAmplitude;
+ }
+ } break;
default:
LOG_ALWAYS_FATAL("setParameter track: bad param %d", param);
}
@@ -553,6 +559,7 @@
// haptic
t->mHapticPlaybackEnabled = false;
t->mHapticIntensity = os::HapticScale::NONE;
+ t->mHapticMaxAmplitude = NAN;
t->mMixerHapticChannelMask = AUDIO_CHANNEL_NONE;
t->mMixerHapticChannelCount = 0;
t->mAdjustInChannelCount = t->channelCount + t->mHapticChannelCount;
@@ -602,7 +609,8 @@
switch (t->mMixerFormat) {
// Mixer format should be AUDIO_FORMAT_PCM_FLOAT.
case AUDIO_FORMAT_PCM_FLOAT: {
- os::scaleHapticData((float*) buffer, sampleCount, t->mHapticIntensity);
+ os::scaleHapticData((float*) buffer, sampleCount, t->mHapticIntensity,
+ t->mHapticMaxAmplitude);
} break;
default:
LOG_ALWAYS_FATAL("bad mMixerFormat: %#x", t->mMixerFormat);
diff --git a/media/libaudioprocessing/include/media/AudioMixer.h b/media/libaudioprocessing/include/media/AudioMixer.h
index 70eafe3..5a9fa07 100644
--- a/media/libaudioprocessing/include/media/AudioMixer.h
+++ b/media/libaudioprocessing/include/media/AudioMixer.h
@@ -50,6 +50,7 @@
// for haptic
HAPTIC_ENABLED = 0x4007, // Set haptic data from this track should be played or not.
HAPTIC_INTENSITY = 0x4008, // Set the intensity to play haptic data.
+ HAPTIC_MAX_AMPLITUDE = 0x4009, // Set the max amplitude allowed for haptic data.
// for target TIMESTRETCH
PLAYBACK_RATE = 0x4300, // Configure timestretch on this track name;
// parameter 'value' is a pointer to the new playback rate.
@@ -145,6 +146,7 @@
// Haptic
bool mHapticPlaybackEnabled;
os::HapticScale mHapticIntensity;
+ float mHapticMaxAmplitude;
audio_channel_mask_t mHapticChannelMask;
uint32_t mHapticChannelCount;
audio_channel_mask_t mMixerHapticChannelMask;
diff --git a/media/libeffects/hapticgenerator/EffectHapticGenerator.cpp b/media/libeffects/hapticgenerator/EffectHapticGenerator.cpp
index 7bd8c81..3137e13 100644
--- a/media/libeffects/hapticgenerator/EffectHapticGenerator.cpp
+++ b/media/libeffects/hapticgenerator/EffectHapticGenerator.cpp
@@ -302,15 +302,17 @@
break;
}
case HG_PARAM_VIBRATOR_INFO: {
- if (value == nullptr || size != 2 * sizeof(float)) {
+ if (value == nullptr || size != 3 * sizeof(float)) {
return -EINVAL;
}
const float resonantFrequency = *(float*) value;
const float qFactor = *((float *) value + 1);
+ const float maxAmplitude = *((float *) value + 2);
context->param.resonantFrequency =
isnan(resonantFrequency) ? DEFAULT_RESONANT_FREQUENCY : resonantFrequency;
context->param.bsfZeroQ = isnan(qFactor) ? DEFAULT_BSF_POLE_Q : qFactor;
context->param.bsfPoleQ = context->param.bsfZeroQ / 2.0f;
+ context->param.maxHapticAmplitude = maxAmplitude;
if (context->processorsRecord.bpf != nullptr) {
context->processorsRecord.bpf->setCoefficients(
@@ -463,7 +465,8 @@
float* hapticOutBuffer = HapticGenerator_runProcessingChain(
context->processingChain, context->inputBuffer.data(),
context->outputBuffer.data(), inBuffer->frameCount);
- os::scaleHapticData(hapticOutBuffer, hapticSampleCount, context->param.maxHapticIntensity);
+ os::scaleHapticData(hapticOutBuffer, hapticSampleCount, context->param.maxHapticIntensity,
+ context->param.maxHapticAmplitude);
// For haptic data, the haptic playback thread will copy the data from effect input buffer,
// which contains haptic data at the end of the buffer, directly to sink buffer.
diff --git a/media/libeffects/hapticgenerator/EffectHapticGenerator.h b/media/libeffects/hapticgenerator/EffectHapticGenerator.h
index 96b744a..85e961f 100644
--- a/media/libeffects/hapticgenerator/EffectHapticGenerator.h
+++ b/media/libeffects/hapticgenerator/EffectHapticGenerator.h
@@ -51,6 +51,7 @@
// A map from track id to haptic intensity.
std::map<int, os::HapticScale> id2Intensity;
os::HapticScale maxHapticIntensity; // max intensity will be used to scale haptic data.
+ float maxHapticAmplitude; // max amplitude will be used to limit haptic data absolute values.
float resonantFrequency;
float bpfQ;