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-rwxr-xr-xlibvideoeditor/lvpp/VideoEditorBGAudioProcessing.cpp630
1 files changed, 315 insertions, 315 deletions
diff --git a/libvideoeditor/lvpp/VideoEditorBGAudioProcessing.cpp b/libvideoeditor/lvpp/VideoEditorBGAudioProcessing.cpp
index 80dc9f9..e3bbdf2 100755
--- a/libvideoeditor/lvpp/VideoEditorBGAudioProcessing.cpp
+++ b/libvideoeditor/lvpp/VideoEditorBGAudioProcessing.cpp
@@ -1,315 +1,315 @@
-/*
- * Copyright (C) 2011 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_NDEBUG 1
-#define LOG_TAG "VideoEditorBGAudioProcessing"
-#include <utils/Log.h>
-#include "VideoEditorBGAudioProcessing.h"
-
-namespace android {
-
-VideoEditorBGAudioProcessing::VideoEditorBGAudioProcessing() {
-
- LOGV("VideoEditorBGAudioProcessing:: Construct VideoEditorBGAudioProcessing ");
-
- mAudVolArrIndex = 0;
- mDoDucking = 0;
- mDucking_enable = 0;
- mDucking_lowVolume = 0;
- mDucking_threshold = 0;
- mDuckingFactor = 0;
-
- mBTVolLevel = 0;
- mPTVolLevel = 0;
-
- mIsSSRCneeded = 0;
- mChannelConversion = 0;
-
- mBTFormat = MONO_16_BIT;
-
- mInSampleRate = 8000;
- mOutSampleRate = 16000;
- mPTChannelCount = 2;
- mBTChannelCount = 1;
-}
-
-M4OSA_Int32 VideoEditorBGAudioProcessing::veProcessAudioMixNDuck(
- void *pPTBuffer, void *pBTBuffer, void *pOutBuffer) {
-
- M4AM_Buffer16* pPrimaryTrack = (M4AM_Buffer16*)pPTBuffer;
- M4AM_Buffer16* pBackgroundTrack = (M4AM_Buffer16*)pBTBuffer;
- M4AM_Buffer16* pMixedOutBuffer = (M4AM_Buffer16*)pOutBuffer;
-
- LOGV("VideoEditorBGAudioProcessing::lvProcessAudioMixNDuck \
- pPTBuffer 0x%x pBTBuffer 0x%x pOutBuffer 0x%x", pPTBuffer,
- pBTBuffer, pOutBuffer);
-
- M4OSA_ERR result = M4NO_ERROR;
- M4OSA_Int16 *pBTMdata1;
- M4OSA_Int16 *pPTMdata2;
- M4OSA_UInt32 uiPCMsize;
-
- // Ducking variable
- M4OSA_UInt16 loopIndex = 0;
- M4OSA_Int16 *pPCM16Sample = M4OSA_NULL;
- M4OSA_Int32 peakDbValue = 0;
- M4OSA_Int32 previousDbValue = 0;
- M4OSA_UInt32 i;
-
- // Output size if same as PT size
- pMixedOutBuffer->m_bufferSize = pPrimaryTrack->m_bufferSize;
-
- // Before mixing, we need to have only PT as out buffer
- memcpy((void *)pMixedOutBuffer->m_dataAddress,
- (void *)pPrimaryTrack->m_dataAddress, pMixedOutBuffer->m_bufferSize);
-
- // Initially contains the input primary track
- pPTMdata2 = (M4OSA_Int16*)pMixedOutBuffer->m_dataAddress;
- // Contains BG track processed data(like channel conversion etc..
- pBTMdata1 = (M4OSA_Int16*) pBackgroundTrack->m_dataAddress;
-
- // Since we need to give sample count and not buffer size
- uiPCMsize = pMixedOutBuffer->m_bufferSize/2 ;
-
- if ((mDucking_enable) && (mPTVolLevel != 0.0)) {
- // LOGI("VideoEditorBGAudioProcessing:: In Ducking analysis ");
- loopIndex = 0;
- peakDbValue = 0;
- previousDbValue = peakDbValue;
-
- pPCM16Sample = (M4OSA_Int16*)pPrimaryTrack->m_dataAddress;
-
- while (loopIndex < pPrimaryTrack->m_bufferSize/sizeof(M4OSA_Int16)) {
- if (pPCM16Sample[loopIndex] >= 0) {
- peakDbValue = previousDbValue > pPCM16Sample[loopIndex] ?
- previousDbValue : pPCM16Sample[loopIndex];
- previousDbValue = peakDbValue;
- } else {
- peakDbValue = previousDbValue > -pPCM16Sample[loopIndex] ?
- previousDbValue: -pPCM16Sample[loopIndex];
- previousDbValue = peakDbValue;
- }
- loopIndex++;
- }
-
- mAudioVolumeArray[mAudVolArrIndex] = getDecibelSound(peakDbValue);
-
- LOGV("VideoEditorBGAudioProcessing:: getDecibelSound %d",
- mAudioVolumeArray[mAudVolArrIndex]);
-
- // WINDOW_SIZE is 10 by default
- // Check for threshold is done after 10 cycles
- if (mAudVolArrIndex >= WINDOW_SIZE - 1) {
- mDoDucking = isThresholdBreached(mAudioVolumeArray,
- mAudVolArrIndex,mDucking_threshold );
- mAudVolArrIndex = 0;
- } else {
- mAudVolArrIndex++;
- }
-
- //
- // Below logic controls the mixing weightage
- // for Background and Primary Tracks
- // for the duration of window under analysis,
- // to give fade-out for Background and fade-in for primary
- // Current fading factor is distributed in equal range over
- // the defined window size.
- // For a window size = 25
- // (500 ms (window under analysis) / 20 ms (sample duration))
- //
-
- if (mDoDucking) {
- if (mDuckingFactor > mDucking_lowVolume) {
- // FADE OUT BG Track
- // Increment ducking factor in total steps in factor
- // of low volume steps to reach low volume level
- mDuckingFactor -= (mDucking_lowVolume);
- } else {
- mDuckingFactor = mDucking_lowVolume;
- }
- } else {
- if (mDuckingFactor < 1.0 ) {
- // FADE IN BG Track
- // Increment ducking factor in total steps of
- // low volume factor to reach orig.volume level
- mDuckingFactor += (mDucking_lowVolume);
- } else {
- mDuckingFactor = 1.0;
- }
- }
- } // end if - mDucking_enable
-
-
- // Mixing Logic
-
- LOGV("VideoEditorBGAudioProcessing:: Out of Ducking analysis uiPCMsize\
- %d %f %f", mDoDucking, mDuckingFactor,mBTVolLevel);
-
- while (uiPCMsize-- > 0) {
-
- M4OSA_Int32 temp;
- // Set vol factor for BT and PT
- *pBTMdata1 = (M4OSA_Int16)(*pBTMdata1*mBTVolLevel);
- *pPTMdata2 = (M4OSA_Int16)(*pPTMdata2*mPTVolLevel);
-
- // Mix the two samples
- if (mDoDucking) {
-
- // Duck the BG track to ducking factor value before mixing
- *pBTMdata1 = (M4OSA_Int16)((*pBTMdata1)*(mDuckingFactor));
-
- // mix as normal case
- *pBTMdata1 = (M4OSA_Int16)(*pBTMdata1 /2 + *pPTMdata2 /2);
- } else {
-
- *pBTMdata1 = (M4OSA_Int16)((*pBTMdata1)*(mDuckingFactor));
- *pBTMdata1 = (M4OSA_Int16)(*pBTMdata1 /2 + *pPTMdata2 /2);
- }
-
- if (*pBTMdata1 < 0) {
- temp = -(*pBTMdata1) * 2; // bring to original Amplitude level
-
- if (temp > 32767) {
- *pBTMdata1 = -32766; // less then max allowed value
- } else {
- *pBTMdata1 = (M4OSA_Int16)(-temp);
- }
- } else {
- temp = (*pBTMdata1) * 2; // bring to original Amplitude level
- if ( temp > 32768) {
- *pBTMdata1 = 32767; // less than max allowed value
- } else {
- *pBTMdata1 = (M4OSA_Int16)temp;
- }
- }
-
- pBTMdata1++;
- pPTMdata2++;
- }
- //LOGV("VideoEditorBGAudioProcessing:: Copy final out ");
- memcpy((void *)pMixedOutBuffer->m_dataAddress,
- (void *)pBackgroundTrack->m_dataAddress,
- pBackgroundTrack->m_bufferSize);
-
- LOGV("VideoEditorBGAudioProcessing::lvProcessAudioMixNDuck EXIT");
- return result;
-}
-
-VideoEditorBGAudioProcessing::~VideoEditorBGAudioProcessing() {
-
-}
-
-M4OSA_Int32 VideoEditorBGAudioProcessing::calculateOutResampleBufSize() {
-
- // This already takes care of channel count in mBTBuffer.m_bufferSize
- return (mOutSampleRate / mInSampleRate) * mBTBuffer.m_bufferSize;
-}
-
-void VideoEditorBGAudioProcessing ::veSetAudioProcessingParams(
- const veAudMixSettings& gInputParams) {
-
- LOGV("VideoEditorBGAudioProcessing:: ENTER lvSetAudioProcessingParams ");
- mDucking_enable = gInputParams.lvInDucking_enable;
- mDucking_lowVolume = gInputParams.lvInDucking_lowVolume;
- mDucking_threshold = gInputParams.lvInDucking_threshold;
-
- mPTVolLevel = gInputParams.lvPTVolLevel;
- mBTVolLevel = gInputParams.lvBTVolLevel ;
-
- mBTChannelCount = gInputParams.lvBTChannelCount;
- mPTChannelCount = gInputParams.lvPTChannelCount;
-
- mBTFormat = gInputParams.lvBTFormat;
-
- mInSampleRate = gInputParams.lvInSampleRate;
- mOutSampleRate = gInputParams.lvOutSampleRate;
-
- mAudVolArrIndex = 0;
- mDoDucking = 0;
- mDuckingFactor = 1.0; // default
-
- LOGV("VideoEditorBGAudioProcessing:: ducking_enable 0x%x \
- ducking_lowVolume %f ducking_threshold %d fPTVolLevel %f BTVolLevel %f",
- mDucking_enable, mDucking_lowVolume, mDucking_threshold,
- mPTVolLevel, mPTVolLevel);
-
- // Following logc decides if SSRC support is needed for this mixing
- mIsSSRCneeded = (gInputParams.lvInSampleRate != gInputParams.lvOutSampleRate);
- if (gInputParams.lvBTChannelCount != gInputParams.lvPTChannelCount){
- if (gInputParams.lvBTChannelCount == 2){
- mChannelConversion = 1; // convert to MONO
- } else {
- mChannelConversion = 2; // Convert to STEREO
- }
- } else {
- mChannelConversion = 0;
- }
- LOGV("VideoEditorBGAudioProcessing:: EXIT veSetAudioProcessingParams ");
-}
-
-
-// Fast way to compute 10 * log(value)
-M4OSA_Int32 VideoEditorBGAudioProcessing::getDecibelSound(M4OSA_UInt32 value) {
- if (value <= 0 || value > 0x8000) {
- return 0;
- } else if (value > 0x4000) { // 32768
- return 90;
- } else if (value > 0x2000) { // 16384
- return 84;
- } else if (value > 0x1000) { // 8192
- return 78;
- } else if (value > 0x0800) { // 4028
- return 72;
- } else if (value > 0x0400) { // 2048
- return 66;
- } else if (value > 0x0200) { // 1024
- return 60;
- } else if (value > 0x0100) { // 512
- return 54;
- } else if (value > 0x0080) { // 256
- return 48;
- } else if (value > 0x0040) { // 128
- return 42;
- } else if (value > 0x0020) { // 64
- return 36;
- } else if (value > 0x0010) { // 32
- return 30;
- } else if (value > 0x0008) { // 16
- return 24;
- } else if (value > 0x0007) { // 8
- return 24;
- } else if (value > 0x0003) { // 4
- return 18;
- } else if (value > 0x0001) { // 2
- return 12;
- } else { // 1
- return 6;
- }
-}
-
-M4OSA_Bool VideoEditorBGAudioProcessing::isThresholdBreached(
- M4OSA_Int32* averageValue,
- M4OSA_Int32 storeCount,
- M4OSA_Int32 thresholdValue) {
-
- int totalValue = 0;
- for (int i = 0; i < storeCount; ++i) {
- totalValue += averageValue[i];
- }
- return (totalValue / storeCount > thresholdValue);
-}
-
-}//namespace android
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_NDEBUG 1
+#define LOG_TAG "VideoEditorBGAudioProcessing"
+#include <utils/Log.h>
+#include "VideoEditorBGAudioProcessing.h"
+
+namespace android {
+
+VideoEditorBGAudioProcessing::VideoEditorBGAudioProcessing() {
+
+ LOGV("VideoEditorBGAudioProcessing:: Construct VideoEditorBGAudioProcessing ");
+
+ mAudVolArrIndex = 0;
+ mDoDucking = 0;
+ mDucking_enable = 0;
+ mDucking_lowVolume = 0;
+ mDucking_threshold = 0;
+ mDuckingFactor = 0;
+
+ mBTVolLevel = 0;
+ mPTVolLevel = 0;
+
+ mIsSSRCneeded = 0;
+ mChannelConversion = 0;
+
+ mBTFormat = MONO_16_BIT;
+
+ mInSampleRate = 8000;
+ mOutSampleRate = 16000;
+ mPTChannelCount = 2;
+ mBTChannelCount = 1;
+}
+
+M4OSA_Int32 VideoEditorBGAudioProcessing::veProcessAudioMixNDuck(
+ void *pPTBuffer, void *pBTBuffer, void *pOutBuffer) {
+
+ M4AM_Buffer16* pPrimaryTrack = (M4AM_Buffer16*)pPTBuffer;
+ M4AM_Buffer16* pBackgroundTrack = (M4AM_Buffer16*)pBTBuffer;
+ M4AM_Buffer16* pMixedOutBuffer = (M4AM_Buffer16*)pOutBuffer;
+
+ LOGV("VideoEditorBGAudioProcessing::lvProcessAudioMixNDuck \
+ pPTBuffer 0x%x pBTBuffer 0x%x pOutBuffer 0x%x", pPTBuffer,
+ pBTBuffer, pOutBuffer);
+
+ M4OSA_ERR result = M4NO_ERROR;
+ M4OSA_Int16 *pBTMdata1;
+ M4OSA_Int16 *pPTMdata2;
+ M4OSA_UInt32 uiPCMsize;
+
+ // Ducking variable
+ M4OSA_UInt16 loopIndex = 0;
+ M4OSA_Int16 *pPCM16Sample = M4OSA_NULL;
+ M4OSA_Int32 peakDbValue = 0;
+ M4OSA_Int32 previousDbValue = 0;
+ M4OSA_UInt32 i;
+
+ // Output size if same as PT size
+ pMixedOutBuffer->m_bufferSize = pPrimaryTrack->m_bufferSize;
+
+ // Before mixing, we need to have only PT as out buffer
+ memcpy((void *)pMixedOutBuffer->m_dataAddress,
+ (void *)pPrimaryTrack->m_dataAddress, pMixedOutBuffer->m_bufferSize);
+
+ // Initially contains the input primary track
+ pPTMdata2 = (M4OSA_Int16*)pMixedOutBuffer->m_dataAddress;
+ // Contains BG track processed data(like channel conversion etc..
+ pBTMdata1 = (M4OSA_Int16*) pBackgroundTrack->m_dataAddress;
+
+ // Since we need to give sample count and not buffer size
+ uiPCMsize = pMixedOutBuffer->m_bufferSize/2 ;
+
+ if ((mDucking_enable) && (mPTVolLevel != 0.0)) {
+ // LOGI("VideoEditorBGAudioProcessing:: In Ducking analysis ");
+ loopIndex = 0;
+ peakDbValue = 0;
+ previousDbValue = peakDbValue;
+
+ pPCM16Sample = (M4OSA_Int16*)pPrimaryTrack->m_dataAddress;
+
+ while (loopIndex < pPrimaryTrack->m_bufferSize/sizeof(M4OSA_Int16)) {
+ if (pPCM16Sample[loopIndex] >= 0) {
+ peakDbValue = previousDbValue > pPCM16Sample[loopIndex] ?
+ previousDbValue : pPCM16Sample[loopIndex];
+ previousDbValue = peakDbValue;
+ } else {
+ peakDbValue = previousDbValue > -pPCM16Sample[loopIndex] ?
+ previousDbValue: -pPCM16Sample[loopIndex];
+ previousDbValue = peakDbValue;
+ }
+ loopIndex++;
+ }
+
+ mAudioVolumeArray[mAudVolArrIndex] = getDecibelSound(peakDbValue);
+
+ LOGV("VideoEditorBGAudioProcessing:: getDecibelSound %d",
+ mAudioVolumeArray[mAudVolArrIndex]);
+
+ // WINDOW_SIZE is 10 by default
+ // Check for threshold is done after 10 cycles
+ if (mAudVolArrIndex >= WINDOW_SIZE - 1) {
+ mDoDucking = isThresholdBreached(mAudioVolumeArray,
+ mAudVolArrIndex,mDucking_threshold );
+ mAudVolArrIndex = 0;
+ } else {
+ mAudVolArrIndex++;
+ }
+
+ //
+ // Below logic controls the mixing weightage
+ // for Background and Primary Tracks
+ // for the duration of window under analysis,
+ // to give fade-out for Background and fade-in for primary
+ // Current fading factor is distributed in equal range over
+ // the defined window size.
+ // For a window size = 25
+ // (500 ms (window under analysis) / 20 ms (sample duration))
+ //
+
+ if (mDoDucking) {
+ if (mDuckingFactor > mDucking_lowVolume) {
+ // FADE OUT BG Track
+ // Increment ducking factor in total steps in factor
+ // of low volume steps to reach low volume level
+ mDuckingFactor -= (mDucking_lowVolume);
+ } else {
+ mDuckingFactor = mDucking_lowVolume;
+ }
+ } else {
+ if (mDuckingFactor < 1.0 ) {
+ // FADE IN BG Track
+ // Increment ducking factor in total steps of
+ // low volume factor to reach orig.volume level
+ mDuckingFactor += (mDucking_lowVolume);
+ } else {
+ mDuckingFactor = 1.0;
+ }
+ }
+ } // end if - mDucking_enable
+
+
+ // Mixing Logic
+
+ LOGV("VideoEditorBGAudioProcessing:: Out of Ducking analysis uiPCMsize\
+ %d %f %f", mDoDucking, mDuckingFactor,mBTVolLevel);
+
+ while (uiPCMsize-- > 0) {
+
+ M4OSA_Int32 temp;
+ // Set vol factor for BT and PT
+ *pBTMdata1 = (M4OSA_Int16)(*pBTMdata1*mBTVolLevel);
+ *pPTMdata2 = (M4OSA_Int16)(*pPTMdata2*mPTVolLevel);
+
+ // Mix the two samples
+ if (mDoDucking) {
+
+ // Duck the BG track to ducking factor value before mixing
+ *pBTMdata1 = (M4OSA_Int16)((*pBTMdata1)*(mDuckingFactor));
+
+ // mix as normal case
+ *pBTMdata1 = (M4OSA_Int16)(*pBTMdata1 /2 + *pPTMdata2 /2);
+ } else {
+
+ *pBTMdata1 = (M4OSA_Int16)((*pBTMdata1)*(mDuckingFactor));
+ *pBTMdata1 = (M4OSA_Int16)(*pBTMdata1 /2 + *pPTMdata2 /2);
+ }
+
+ if (*pBTMdata1 < 0) {
+ temp = -(*pBTMdata1) * 2; // bring to original Amplitude level
+
+ if (temp > 32767) {
+ *pBTMdata1 = -32766; // less then max allowed value
+ } else {
+ *pBTMdata1 = (M4OSA_Int16)(-temp);
+ }
+ } else {
+ temp = (*pBTMdata1) * 2; // bring to original Amplitude level
+ if ( temp > 32768) {
+ *pBTMdata1 = 32767; // less than max allowed value
+ } else {
+ *pBTMdata1 = (M4OSA_Int16)temp;
+ }
+ }
+
+ pBTMdata1++;
+ pPTMdata2++;
+ }
+ //LOGV("VideoEditorBGAudioProcessing:: Copy final out ");
+ memcpy((void *)pMixedOutBuffer->m_dataAddress,
+ (void *)pBackgroundTrack->m_dataAddress,
+ pBackgroundTrack->m_bufferSize);
+
+ LOGV("VideoEditorBGAudioProcessing::lvProcessAudioMixNDuck EXIT");
+ return result;
+}
+
+VideoEditorBGAudioProcessing::~VideoEditorBGAudioProcessing() {
+
+}
+
+M4OSA_Int32 VideoEditorBGAudioProcessing::calculateOutResampleBufSize() {
+
+ // This already takes care of channel count in mBTBuffer.m_bufferSize
+ return (mOutSampleRate / mInSampleRate) * mBTBuffer.m_bufferSize;
+}
+
+void VideoEditorBGAudioProcessing ::veSetAudioProcessingParams(
+ const veAudMixSettings& gInputParams) {
+
+ LOGV("VideoEditorBGAudioProcessing:: ENTER lvSetAudioProcessingParams ");
+ mDucking_enable = gInputParams.lvInDucking_enable;
+ mDucking_lowVolume = gInputParams.lvInDucking_lowVolume;
+ mDucking_threshold = gInputParams.lvInDucking_threshold;
+
+ mPTVolLevel = gInputParams.lvPTVolLevel;
+ mBTVolLevel = gInputParams.lvBTVolLevel ;
+
+ mBTChannelCount = gInputParams.lvBTChannelCount;
+ mPTChannelCount = gInputParams.lvPTChannelCount;
+
+ mBTFormat = gInputParams.lvBTFormat;
+
+ mInSampleRate = gInputParams.lvInSampleRate;
+ mOutSampleRate = gInputParams.lvOutSampleRate;
+
+ mAudVolArrIndex = 0;
+ mDoDucking = 0;
+ mDuckingFactor = 1.0; // default
+
+ LOGV("VideoEditorBGAudioProcessing:: ducking_enable 0x%x \
+ ducking_lowVolume %f ducking_threshold %d fPTVolLevel %f BTVolLevel %f",
+ mDucking_enable, mDucking_lowVolume, mDucking_threshold,
+ mPTVolLevel, mPTVolLevel);
+
+ // Following logc decides if SSRC support is needed for this mixing
+ mIsSSRCneeded = (gInputParams.lvInSampleRate != gInputParams.lvOutSampleRate);
+ if (gInputParams.lvBTChannelCount != gInputParams.lvPTChannelCount){
+ if (gInputParams.lvBTChannelCount == 2){
+ mChannelConversion = 1; // convert to MONO
+ } else {
+ mChannelConversion = 2; // Convert to STEREO
+ }
+ } else {
+ mChannelConversion = 0;
+ }
+ LOGV("VideoEditorBGAudioProcessing:: EXIT veSetAudioProcessingParams ");
+}
+
+
+// Fast way to compute 10 * log(value)
+M4OSA_Int32 VideoEditorBGAudioProcessing::getDecibelSound(M4OSA_UInt32 value) {
+ if (value <= 0 || value > 0x8000) {
+ return 0;
+ } else if (value > 0x4000) { // 32768
+ return 90;
+ } else if (value > 0x2000) { // 16384
+ return 84;
+ } else if (value > 0x1000) { // 8192
+ return 78;
+ } else if (value > 0x0800) { // 4028
+ return 72;
+ } else if (value > 0x0400) { // 2048
+ return 66;
+ } else if (value > 0x0200) { // 1024
+ return 60;
+ } else if (value > 0x0100) { // 512
+ return 54;
+ } else if (value > 0x0080) { // 256
+ return 48;
+ } else if (value > 0x0040) { // 128
+ return 42;
+ } else if (value > 0x0020) { // 64
+ return 36;
+ } else if (value > 0x0010) { // 32
+ return 30;
+ } else if (value > 0x0008) { // 16
+ return 24;
+ } else if (value > 0x0007) { // 8
+ return 24;
+ } else if (value > 0x0003) { // 4
+ return 18;
+ } else if (value > 0x0001) { // 2
+ return 12;
+ } else { // 1
+ return 6;
+ }
+}
+
+M4OSA_Bool VideoEditorBGAudioProcessing::isThresholdBreached(
+ M4OSA_Int32* averageValue,
+ M4OSA_Int32 storeCount,
+ M4OSA_Int32 thresholdValue) {
+
+ int totalValue = 0;
+ for (int i = 0; i < storeCount; ++i) {
+ totalValue += averageValue[i];
+ }
+ return (totalValue / storeCount > thresholdValue);
+}
+
+}//namespace android
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