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Searched
refs:coefShift
(Results
1 - 2
of
2
) sorted by null
/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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