common_audio: Made input signal const in WebRtcSplFilterMAFastQ12()
BUG=3353, 1133
TESTED=locally on Mac and trybots
R=henrik.lundin@webrtc.org, kwiberg@webrtc.org
Review URL: https://webrtc-codereview.appspot.com/37499004
git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@8037 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/common_audio/signal_processing/filter_ma_fast_q12.c b/common_audio/signal_processing/filter_ma_fast_q12.c
index d40918d..943b01c 100644
--- a/common_audio/signal_processing/filter_ma_fast_q12.c
+++ b/common_audio/signal_processing/filter_ma_fast_q12.c
@@ -17,9 +17,9 @@
#include "webrtc/common_audio/signal_processing/include/signal_processing_library.h"
-void WebRtcSpl_FilterMAFastQ12(int16_t* in_ptr,
+void WebRtcSpl_FilterMAFastQ12(const int16_t* in_ptr,
int16_t* out_ptr,
- int16_t* B,
+ const int16_t* B,
int16_t B_length,
int16_t length)
{
diff --git a/common_audio/signal_processing/include/signal_processing_library.h b/common_audio/signal_processing/include/signal_processing_library.h
index f60f254..ff17009 100644
--- a/common_audio/signal_processing/include/signal_processing_library.h
+++ b/common_audio/signal_processing/include/signal_processing_library.h
@@ -650,9 +650,23 @@
int16_t* out_vector_low,
int out_vector_low_length);
-void WebRtcSpl_FilterMAFastQ12(int16_t* in_vector,
+// WebRtcSpl_FilterMAFastQ12(...)
+//
+// Performs a MA filtering on a vector in Q12
+//
+// Input:
+// - in_vector : Input samples (state in positions
+// in_vector[-order] .. in_vector[-1])
+// - ma_coef : Filter coefficients (in Q12)
+// - ma_coef_length : Number of B coefficients (order+1)
+// - vector_length : Number of samples to be filtered
+//
+// Output:
+// - out_vector : Filtered samples
+//
+void WebRtcSpl_FilterMAFastQ12(const int16_t* in_vector,
int16_t* out_vector,
- int16_t* ma_coef,
+ const int16_t* ma_coef,
int16_t ma_coef_length,
int16_t vector_length);
@@ -1500,22 +1514,6 @@
//
//
-// WebRtcSpl_FilterMAFastQ12(...)
-//
-// Performs a MA filtering on a vector in Q12
-//
-// Input:
-// - in_vector : Input samples (state in positions
-// in_vector[-order] .. in_vector[-1])
-// - ma_coef : Filter coefficients (in Q12)
-// - ma_coef_length : Number of B coefficients (order+1)
-// - vector_length : Number of samples to be filtered
-//
-// Output:
-// - out_vector : Filtered samples
-//
-
-//
// WebRtcSpl_ComplexIFFT(...)
//
// Complex Inverse FFT
diff --git a/modules/audio_coding/neteq/expand.cc b/modules/audio_coding/neteq/expand.cc
index 49ea45f..d13c2cd 100644
--- a/modules/audio_coding/neteq/expand.cc
+++ b/modules/audio_coding/neteq/expand.cc
@@ -618,9 +618,11 @@
memcpy(unvoiced_vector - kUnvoicedLpcOrder,
&(audio_history[signal_length - 128 - kUnvoicedLpcOrder]),
sizeof(int16_t) * kUnvoicedLpcOrder);
- WebRtcSpl_FilterMAFastQ12(
- const_cast<int16_t*>(&audio_history[signal_length - 128]),
- unvoiced_vector, parameters.ar_filter, kUnvoicedLpcOrder + 1, 128);
+ WebRtcSpl_FilterMAFastQ12(&audio_history[signal_length - 128],
+ unvoiced_vector,
+ parameters.ar_filter,
+ kUnvoicedLpcOrder + 1,
+ 128);
int16_t unvoiced_prescale;
if (WebRtcSpl_MaxAbsValueW16(unvoiced_vector, 128) > 4000) {
unvoiced_prescale = 4;
