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repair to wrapped memcpy from AudioRingBuffer

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This commit is contained in:
Stephen Birarda 2016-02-09 16:39:22 -08:00
parent 87d1d0a49c
commit ac0db04892
1 changed files with 3 additions and 3 deletions
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6
libraries/audio/src/AudioRingBuffer.h
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@ -141,15 +141,15 @@ public:
} }
void readSamples(int16_t* dest, int numSamples) { void readSamples(int16_t* dest, int numSamples) {
auto samplesToEnd = _bufferLast - _at; auto samplesToEnd = _bufferLast - _at + 1;
if (samplesToEnd >= numSamples) { if (samplesToEnd >= numSamples) {
memcpy(dest, _at, numSamples * sizeof(int16_t)); memcpy(dest, _at, numSamples * sizeof(int16_t));
_at += numSamples; _at += numSamples;
} else { } else {
auto samplesFromStart = numSamples - samplesToEnd; auto samplesFromStart = numSamples - samplesToEnd;
memcpy(dest, _at, samplesToEnd * sizeof(int16_t)); memcpy(dest, _at, samplesToEnd * sizeof(int16_t));
memcpy(dest, _at + samplesToEnd, samplesFromStart * sizeof(int16_t)); memcpy(dest + samplesToEnd, _bufferFirst, samplesFromStart * sizeof(int16_t));
_at = _bufferFirst + samplesFromStart; _at = _bufferFirst + samplesFromStart;
} }