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Diffstat (limited to 'services/audioflinger/AudioResampler.cpp')
-rw-r--r--services/audioflinger/AudioResampler.cpp26
1 files changed, 23 insertions, 3 deletions
diff --git a/services/audioflinger/AudioResampler.cpp b/services/audioflinger/AudioResampler.cpp
index 9486b9c..398ba0b 100644
--- a/services/audioflinger/AudioResampler.cpp
+++ b/services/audioflinger/AudioResampler.cpp
@@ -122,7 +122,8 @@ AudioResampler::AudioResampler(int bitDepth, int inChannelCount,
int32_t sampleRate) :
mBitDepth(bitDepth), mChannelCount(inChannelCount),
mSampleRate(sampleRate), mInSampleRate(sampleRate), mInputIndex(0),
- mPhaseFraction(0) {
+ mPhaseFraction(0), mLocalTimeFreq(0),
+ mPTS(AudioBufferProvider::kInvalidPTS) {
// sanity check on format
if ((bitDepth != 16) ||(inChannelCount < 1) || (inChannelCount > 2)) {
ALOGE("Unsupported sample format, %d bits, %d channels", bitDepth,
@@ -150,6 +151,23 @@ void AudioResampler::setVolume(int16_t left, int16_t right) {
mVolume[1] = right;
}
+void AudioResampler::setLocalTimeFreq(uint64_t freq) {
+ mLocalTimeFreq = freq;
+}
+
+void AudioResampler::setPTS(int64_t pts) {
+ mPTS = pts;
+}
+
+int64_t AudioResampler::calculateOutputPTS(int outputFrameIndex) {
+
+ if (mPTS == AudioBufferProvider::kInvalidPTS) {
+ return AudioBufferProvider::kInvalidPTS;
+ } else {
+ return mPTS + ((outputFrameIndex * mLocalTimeFreq) / mSampleRate);
+ }
+}
+
void AudioResampler::reset() {
mInputIndex = 0;
mPhaseFraction = 0;
@@ -196,7 +214,8 @@ void AudioResamplerOrder1::resampleStereo16(int32_t* out, size_t outFrameCount,
// buffer is empty, fetch a new one
while (mBuffer.frameCount == 0) {
mBuffer.frameCount = inFrameCount;
- provider->getNextBuffer(&mBuffer);
+ provider->getNextBuffer(&mBuffer,
+ calculateOutputPTS(outputIndex / 2));
if (mBuffer.raw == NULL) {
goto resampleStereo16_exit;
}
@@ -290,7 +309,8 @@ void AudioResamplerOrder1::resampleMono16(int32_t* out, size_t outFrameCount,
// buffer is empty, fetch a new one
while (mBuffer.frameCount == 0) {
mBuffer.frameCount = inFrameCount;
- provider->getNextBuffer(&mBuffer);
+ provider->getNextBuffer(&mBuffer,
+ calculateOutputPTS(outputIndex / 2));
if (mBuffer.raw == NULL) {
mInputIndex = inputIndex;
mPhaseFraction = phaseFraction;