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  /frameworks/av/services/audioflinger/
AudioResamplerFirProcess.h 286 * @param phaseWrapLimit is #polyphases<<coefShift, where #polyphases is the number of polyphases
287 * in the polyphase filter. Likewise, #polyphases can be obtained as (phaseWrapLimit>>coefShift).
289 * @param coefShift gives the bit alignment of the polyphase index in the phase parameter.
317 * The filter polyphase index is given by indexP = phase >> coefShift. Due to
321 * The fractional siting between the polyphase indices is given by the bits below coefShift:
323 * lerpP = phase << 32 - coefShift >> 1; // for 32 bit unsigned phase multiply
324 * lerpP = phase << 32 - coefShift >> 17; // for 16 bit unsigned phase multiply
328 * lerpP = phase << sizeof(phase)*8 - coefShift
333 * lerpP = (phase << 32 - coefShift) / (1 << 32); // floating point equivalent
340 const int coefShift, const int halfNumCoefs, const TC* const coefs
    [all...]
AudioResamplerDyn.cpp 558 const int coefShift = c.mShift;
577 coefShift, halfNumCoefs, coefs,

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