summaryrefslogtreecommitdiffstats
path: root/media/libeffects/lvm
diff options
context:
space:
mode:
Diffstat (limited to 'media/libeffects/lvm')
-rw-r--r--media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp170
-rw-r--r--media/libeffects/lvm/wrapper/Bundle/EffectBundle.h2
2 files changed, 79 insertions, 93 deletions
diff --git a/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp b/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp
index f3f2d1e..2eae7df 100644
--- a/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp
+++ b/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp
@@ -1202,7 +1202,7 @@ void VirtualizerSetStrength(EffectContext *pContext, uint32_t strength){
//----------------------------------------------------------------------------
// EqualizerLimitBandLevels()
//----------------------------------------------------------------------------
-// Purpose: limit all EQ band gains to a value less than MAX_BAND_GAIN_DB while
+// Purpose: limit all EQ band gains to a value less than 0 dB while
// preserving the relative band levels.
//
// Inputs:
@@ -1214,7 +1214,6 @@ void VirtualizerSetStrength(EffectContext *pContext, uint32_t strength){
void EqualizerLimitBandLevels(EffectContext *pContext) {
LVM_ControlParams_t ActiveParams; /* Current control Parameters */
LVM_ReturnStatus_en LvmStatus=LVM_SUCCESS; /* Function call status */
- LVM_EQNB_BandDef_t *BandDef;
/* Get the current settings */
LvmStatus = LVM_GetControlParameters(pContext->pBundledContext->hInstance, &ActiveParams);
@@ -1223,28 +1222,78 @@ void EqualizerLimitBandLevels(EffectContext *pContext) {
//ALOGV("\tEqualizerLimitBandLevels just Got -> %d\n",
// ActiveParams.pEQNB_BandDefinition[band].Gain);
- int gainCorrection = 0;
+ // Apply a volume correction to avoid clipping in the EQ based on 2 factors:
+ // - the maximum EQ band gain: the volume correction is such that the total of volume + max
+ // band gain is <= 0 dB
+ // - the average gain in all bands weighted by their proximity to max gain band.
+ int maxGain = 0;
+ int avgGain = 0;
+ int avgCount = 0;
for (int i = 0; i < FIVEBAND_NUMBANDS; i++) {
- int level = pContext->pBundledContext->bandGaindB[i] + ActiveParams.VC_EffectLevel;
- if (level > MAX_BAND_GAIN_DB) {
- int correction = MAX_BAND_GAIN_DB -level;
- if (correction < gainCorrection) {
- gainCorrection = correction;
+ if (pContext->pBundledContext->bandGaindB[i] >= maxGain) {
+ int tmpMaxGain = pContext->pBundledContext->bandGaindB[i];
+ int tmpAvgGain = 0;
+ int tmpAvgCount = 0;
+ for (int j = 0; j < FIVEBAND_NUMBANDS; j++) {
+ int gain = pContext->pBundledContext->bandGaindB[j];
+ // skip current band and gains < 0 dB
+ if (j == i || gain < 0)
+ continue;
+ // no need to continue if one band not processed yet has a higher gain than current
+ // max
+ if (gain > tmpMaxGain) {
+ // force skipping "if (tmpAvgGain >= avgGain)" below as tmpAvgGain is not
+ // meaningful in this case
+ tmpAvgGain = -1;
+ break;
+ }
+
+ int weight = 1;
+ if (j < (i + 2) && j > (i - 2))
+ weight = 4;
+ tmpAvgGain += weight * gain;
+ tmpAvgCount += weight;
+ }
+ if (tmpAvgGain >= avgGain) {
+ maxGain = tmpMaxGain;
+ avgGain = tmpAvgGain;
+ avgCount = tmpAvgCount;
}
}
+ ActiveParams.pEQNB_BandDefinition[i].Frequency = EQNB_5BandPresetsFrequencies[i];
+ ActiveParams.pEQNB_BandDefinition[i].QFactor = EQNB_5BandPresetsQFactors[i];
+ ActiveParams.pEQNB_BandDefinition[i].Gain = pContext->pBundledContext->bandGaindB[i];
}
- /* Set local EQ parameters */
- BandDef = ActiveParams.pEQNB_BandDefinition;
- for (int i=0; i < FIVEBAND_NUMBANDS; i++) {
- ActiveParams.pEQNB_BandDefinition[i].Gain = pContext->pBundledContext->bandGaindB[i] +
- gainCorrection;
+ int gainCorrection = 0;
+ if (maxGain + pContext->pBundledContext->volume > 0) {
+ gainCorrection = maxGain + pContext->pBundledContext->volume;
}
+ if (avgCount) {
+ gainCorrection += avgGain/avgCount;
+ }
+
+ ALOGV("EqualizerLimitBandLevels() gainCorrection %d maxGain %d avgGain %d avgCount %d",
+ gainCorrection, maxGain, avgGain, avgCount);
+
+ ActiveParams.VC_EffectLevel = pContext->pBundledContext->volume - gainCorrection;
+ if (ActiveParams.VC_EffectLevel < -96) {
+ ActiveParams.VC_EffectLevel = -96;
+ }
+
/* Activate the initial settings */
LvmStatus = LVM_SetControlParameters(pContext->pBundledContext->hInstance, &ActiveParams);
LVM_ERROR_CHECK(LvmStatus, "LVM_SetControlParameters", "EqualizerLimitBandLevels")
//ALOGV("\tEqualizerLimitBandLevels just Set -> %d\n",
// ActiveParams.pEQNB_BandDefinition[band].Gain);
+
+ //ALOGV("\tEqualizerLimitBandLevels just set (-96dB -> 0dB) -> %d\n",ActiveParams.VC_EffectLevel );
+ if(pContext->pBundledContext->firstVolume == LVM_TRUE){
+ LvmStatus = LVM_SetVolumeNoSmoothing(pContext->pBundledContext->hInstance, &ActiveParams);
+ LVM_ERROR_CHECK(LvmStatus, "LVM_SetVolumeNoSmoothing", "LvmBundle_process")
+ ALOGV("\tLVM_VOLUME: Disabling Smoothing for first volume change to remove spikes/clicks");
+ pContext->pBundledContext->firstVolume = LVM_FALSE;
+ }
}
@@ -1418,25 +1467,12 @@ void EqualizerSetPreset(EffectContext *pContext, int preset){
//ALOGV("\tEqualizerSetPreset(%d)", preset);
pContext->pBundledContext->CurPreset = preset;
- LVM_ControlParams_t ActiveParams; /* Current control Parameters */
- LVM_ReturnStatus_en LvmStatus=LVM_SUCCESS; /* Function call status */
-
- /* Get the current settings */
- LvmStatus = LVM_GetControlParameters(pContext->pBundledContext->hInstance, &ActiveParams);
- LVM_ERROR_CHECK(LvmStatus, "LVM_GetControlParameters", "EqualizerSetPreset")
- //ALOGV("\tEqualizerSetPreset Succesfully returned from LVM_GetControlParameters\n");
-
//ActiveParams.pEQNB_BandDefinition = &BandDefs[0];
for (int i=0; i<FIVEBAND_NUMBANDS; i++)
{
- ActiveParams.pEQNB_BandDefinition[i].Frequency = EQNB_5BandPresetsFrequencies[i];
- ActiveParams.pEQNB_BandDefinition[i].QFactor = EQNB_5BandPresetsQFactors[i];
pContext->pBundledContext->bandGaindB[i] =
EQNB_5BandSoftPresets[i + preset * FIVEBAND_NUMBANDS];
}
- /* Activate the new settings */
- LvmStatus = LVM_SetControlParameters(pContext->pBundledContext->hInstance, &ActiveParams);
- LVM_ERROR_CHECK(LvmStatus, "LVM_SetControlParameters", "EqualizerSetPreset")
EqualizerLimitBandLevels(pContext);
@@ -1483,39 +1519,14 @@ const char * EqualizerGetPresetName(int32_t preset){
int VolumeSetVolumeLevel(EffectContext *pContext, int16_t level){
- LVM_ControlParams_t ActiveParams; /* Current control Parameters */
- LVM_ReturnStatus_en LvmStatus=LVM_SUCCESS; /* Function call status */
-
- //ALOGV("\tVolumeSetVolumeLevel Level to be set is %d %d\n", level, (LVM_INT16)(level/100));
- /* Get the current settings */
- LvmStatus = LVM_GetControlParameters(pContext->pBundledContext->hInstance, &ActiveParams);
- LVM_ERROR_CHECK(LvmStatus, "LVM_GetControlParameters", "VolumeSetVolumeLevel")
- if(LvmStatus != LVM_SUCCESS) return -EINVAL;
- //ALOGV("\tVolumeSetVolumeLevel Succesfully returned from LVM_GetControlParameters got: %d\n",
- //ActiveParams.VC_EffectLevel);
-
- /* Volume parameters */
- ActiveParams.VC_EffectLevel = (LVM_INT16)(level/100);
- //ALOGV("\tVolumeSetVolumeLevel() (-96dB -> 0dB) -> %d\n", ActiveParams.VC_EffectLevel );
-
- /* Activate the initial settings */
- LvmStatus = LVM_SetControlParameters(pContext->pBundledContext->hInstance, &ActiveParams);
- LVM_ERROR_CHECK(LvmStatus, "LVM_SetControlParameters", "VolumeSetVolumeLevel")
- if(LvmStatus != LVM_SUCCESS) return -EINVAL;
-
- //ALOGV("\tVolumeSetVolumeLevel Succesfully called LVM_SetControlParameters\n");
-
- /* Get the current settings */
- LvmStatus = LVM_GetControlParameters(pContext->pBundledContext->hInstance, &ActiveParams);
- LVM_ERROR_CHECK(LvmStatus, "LVM_GetControlParameters", "VolumeSetVolumeLevel")
- if(LvmStatus != LVM_SUCCESS) return -EINVAL;
+ if (level > 0 || level < -9600) {
+ return -EINVAL;
+ }
- //ALOGV("\tVolumeSetVolumeLevel just set (-96dB -> 0dB) -> %d\n",ActiveParams.VC_EffectLevel );
- if(pContext->pBundledContext->firstVolume == LVM_TRUE){
- LvmStatus = LVM_SetVolumeNoSmoothing(pContext->pBundledContext->hInstance, &ActiveParams);
- LVM_ERROR_CHECK(LvmStatus, "LVM_SetVolumeNoSmoothing", "LvmBundle_process")
- ALOGV("\tLVM_VOLUME: Disabling Smoothing for first volume change to remove spikes/clicks");
- pContext->pBundledContext->firstVolume = LVM_FALSE;
+ if (pContext->pBundledContext->bMuteEnabled == LVM_TRUE) {
+ pContext->pBundledContext->levelSaved = level / 100;
+ } else {
+ pContext->pBundledContext->volume = level / 100;
}
EqualizerLimitBandLevels(pContext);
@@ -1535,20 +1546,11 @@ int VolumeSetVolumeLevel(EffectContext *pContext, int16_t level){
int VolumeGetVolumeLevel(EffectContext *pContext, int16_t *level){
- //ALOGV("\tVolumeGetVolumeLevel start");
-
- LVM_ControlParams_t ActiveParams; /* Current control Parameters */
- LVM_ReturnStatus_en LvmStatus = LVM_SUCCESS; /* Function call status */
-
- LvmStatus = LVM_GetControlParameters(pContext->pBundledContext->hInstance, &ActiveParams);
- LVM_ERROR_CHECK(LvmStatus, "LVM_GetControlParameters", "VolumeGetVolumeLevel")
- if(LvmStatus != LVM_SUCCESS) return -EINVAL;
-
- //ALOGV("\tVolumeGetVolumeLevel() (-96dB -> 0dB) -> %d\n", ActiveParams.VC_EffectLevel );
- //ALOGV("\tVolumeGetVolumeLevel Succesfully returned from LVM_GetControlParameters\n");
-
- *level = ActiveParams.VC_EffectLevel*100; // Convert dB to millibels
- //ALOGV("\tVolumeGetVolumeLevel end");
+ if (pContext->pBundledContext->bMuteEnabled == LVM_TRUE) {
+ *level = pContext->pBundledContext->levelSaved * 100;
+ } else {
+ *level = pContext->pBundledContext->volume * 100;
+ }
return 0;
} /* end VolumeGetVolumeLevel */
@@ -1568,32 +1570,16 @@ int32_t VolumeSetMute(EffectContext *pContext, uint32_t mute){
pContext->pBundledContext->bMuteEnabled = mute;
- LVM_ControlParams_t ActiveParams; /* Current control Parameters */
- LVM_ReturnStatus_en LvmStatus=LVM_SUCCESS; /* Function call status */
-
- /* Get the current settings */
- LvmStatus = LVM_GetControlParameters(pContext->pBundledContext->hInstance, &ActiveParams);
- LVM_ERROR_CHECK(LvmStatus, "LVM_GetControlParameters", "VolumeSetMute")
- if(LvmStatus != LVM_SUCCESS) return -EINVAL;
-
- //ALOGV("\tVolumeSetMute Succesfully returned from LVM_GetControlParameters\n");
- //ALOGV("\tVolumeSetMute to %d, level was %d\n", mute, ActiveParams.VC_EffectLevel );
-
/* Set appropriate volume level */
if(pContext->pBundledContext->bMuteEnabled == LVM_TRUE){
- pContext->pBundledContext->levelSaved = ActiveParams.VC_EffectLevel;
- ActiveParams.VC_EffectLevel = -96;
+ pContext->pBundledContext->levelSaved = pContext->pBundledContext->volume;
+ pContext->pBundledContext->volume = -96;
}else{
- ActiveParams.VC_EffectLevel = pContext->pBundledContext->levelSaved;
+ pContext->pBundledContext->volume = pContext->pBundledContext->levelSaved;
}
- /* Activate the initial settings */
- LvmStatus = LVM_SetControlParameters(pContext->pBundledContext->hInstance, &ActiveParams);
- LVM_ERROR_CHECK(LvmStatus, "LVM_SetControlParameters", "VolumeSetMute")
- if(LvmStatus != LVM_SUCCESS) return -EINVAL;
+ EqualizerLimitBandLevels(pContext);
- //ALOGV("\tVolumeSetMute Succesfully called LVM_SetControlParameters\n");
- //ALOGV("\tVolumeSetMute end");
return 0;
} /* end setMute */
diff --git a/media/libeffects/lvm/wrapper/Bundle/EffectBundle.h b/media/libeffects/lvm/wrapper/Bundle/EffectBundle.h
index 9c58ecd..330bb32 100644
--- a/media/libeffects/lvm/wrapper/Bundle/EffectBundle.h
+++ b/media/libeffects/lvm/wrapper/Bundle/EffectBundle.h
@@ -38,7 +38,6 @@ extern "C" {
#define VOLUME_CUP_LOAD_ARM9E 0 // Expressed in 0.1 MIPS
#define BUNDLE_MEM_USAGE 25 // Expressed in kB
//#define LVM_PCM
-#define MAX_BAND_GAIN_DB 4
#ifndef OPENSL_ES_H_
static const effect_uuid_t SL_IID_VOLUME_ = { 0x09e8ede0, 0xddde, 0x11db, 0xb4f6,
@@ -97,6 +96,7 @@ struct BundledEffectContext{
LVM_INT16 *workBuffer;
int frameCount;
int32_t bandGaindB[FIVEBAND_NUMBANDS];
+ int volume;
#ifdef LVM_PCM
FILE *PcmInPtr;
FILE *PcmOutPtr;
generated by cgit v1.1 at 2024-04-30 02:35:55 +0000