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don't copy audio data if the agent sent the wrong amount

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This commit is contained in:
Stephen Birarda 2013-05-24 15:37:48 -07:00
parent aae6d0cf3c
commit c661796b81
1 changed files with 20 additions and 16 deletions
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26
libraries/audio/src/AudioRingBuffer.cpp
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@ -69,20 +69,24 @@ int AudioRingBuffer::parseData(unsigned char* sourceBuffer, int numBytes) {
}
}
if (!_endOfLastWrite) {
_endOfLastWrite = _buffer;
} else if (diffLastWriteNextOutput() > _ringBufferLengthSamples - _bufferLengthSamples) {
_endOfLastWrite = _buffer;
_nextOutput = _buffer;
_started = false;
}
// make sure we have enough bytes left for this to be the right amount of audio
// otherwise we should not copy that data, and leave the buffer pointers where they are
if (numBytes - (dataBuffer - sourceBuffer) == _bufferLengthSamples * sizeof(int16_t)) {
if (!_endOfLastWrite) {
_endOfLastWrite = _buffer;
} else if (diffLastWriteNextOutput() > _ringBufferLengthSamples - _bufferLengthSamples) {
_endOfLastWrite = _buffer;
_nextOutput = _buffer;
_started = false;
}
memcpy(_endOfLastWrite, dataBuffer, _bufferLengthSamples * sizeof(int16_t));
memcpy(_endOfLastWrite, dataBuffer, _bufferLengthSamples * sizeof(int16_t));
_endOfLastWrite += _bufferLengthSamples;
_endOfLastWrite += _bufferLengthSamples;
if (_endOfLastWrite >= _buffer + _ringBufferLengthSamples) {
_endOfLastWrite = _buffer;
if (_endOfLastWrite >= _buffer + _ringBufferLengthSamples) {
_endOfLastWrite = _buffer;
}
}
return numBytes;