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An API to get the internal estimation quality in the delay estimator has been added. Unit tests have been updated. There is no impact to other parts in WebRTC.

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BUG=None

Review URL: https://webrtc-codereview.appspot.com/1036004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@3390 4adac7df-926f-26a2-2b94-8c16560cd09d
This commit is contained in:
bjornv@webrtc.org
2013-01-18 21:54:15 +00:00
parent 2e2a4cff18
commit a2d8b75f29
5 changed files with 64 additions and 1 deletions
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14
webrtc/modules/audio_processing/utility/delay_estimator.h
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@ -98,6 +98,20 @@ int WebRtc_ProcessBinarySpectrum(BinaryDelayEstimator* handle,
//
int WebRtc_binary_last_delay(BinaryDelayEstimator* handle);
// Returns the estimation quality of the last calculated delay updated by the
// function WebRtc_ProcessBinarySpectrum(...). The estimation quality is a value
// in the interval [0, 1] in Q14. The higher the value, the better quality.
//
// Input:
// - handle : Pointer to the delay estimation instance.
//
// Return value:
// - delay_quality : >= 0 - Estimation quality (in Q14) of last
// calculated delay value.
// -2 - Insufficient data for estimation.
//
int WebRtc_binary_last_delay_quality(BinaryDelayEstimator* handle);
// Updates the |mean_value| recursively with a step size of 2^-|factor|. This
// function is used internally in the Binary Delay Estimator as well as the
// Fixed point wrapper.