Replace calls to assert() with RTC_DCHECK_*() in .c code

webrtc/modules/audio_coding/codecs/isac/fix/source/filterbanks.c

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 /*
  * filterbanks.c
  *
  * This file contains function 
  * WebRtcIsacfix_SplitAndFilter, and WebRtcIsacfix_FilterAndCombine
  * which implement filterbanks that produce decimated lowpass and
  * highpass versions of a signal, and performs reconstruction.
  *
  */
 
 #include "filterbank_internal.h"
 
-#include <assert.h>
-
 #include "codec.h"
 #include "filterbank_tables.h"
 #include "settings.h"
+#include "webrtc/base/checks.h"
 
 // Declare a function pointer.
 AllpassFilter2FixDec16 WebRtcIsacfix_AllpassFilter2FixDec16;
 
 void WebRtcIsacfix_AllpassFilter2FixDec16C(
     int16_t *data_ch1,  // Input and output in channel 1, in Q0
     int16_t *data_ch2,  // Input and output in channel 2, in Q0
     const int16_t *factor_ch1,  // Scaling factor for channel 1, in Q15
     const int16_t *factor_ch2,  // Scaling factor for channel 2, in Q15
     const int length,  // Length of the data buffers
     int32_t *filter_state_ch1,  // Filter state for channel 1, in Q16
     int32_t *filter_state_ch2) {  // Filter state for channel 2, in Q16
   int n = 0;
   int32_t state0_ch1 = filter_state_ch1[0], state1_ch1 = filter_state_ch1[1];
   int32_t state0_ch2 = filter_state_ch2[0], state1_ch2 = filter_state_ch2[1];
   int16_t in_out = 0;
   int32_t a = 0, b = 0;
 
   // Assembly file assumption.
-  assert(length % 2 == 0);
+  RTC_DCHECK_EQ(0, length % 2);
 
   for (n = 0; n < length; n++) {
     // Process channel 1:
     in_out = data_ch1[n];
     a = factor_ch1[0] * in_out;  // Q15 * Q0 = Q15
     a *= 1 << 1;  // Q15 -> Q16
     b = WebRtcSpl_AddSatW32(a, state0_ch1);
     a = -factor_ch1[0] * (int16_t)(b >> 16);  // Q15
     state0_ch1 =
         WebRtcSpl_AddSatW32(a * (1 << 1), (int32_t)in_out * (1 << 16));  // Q16
@@ skipping 355 matching lines @@
   /* High pass filter */
   WebRtcIsacfix_HighpassFilterFixDec32(in, len, WebRtcIsacfix_kHPStCoeffOut1Q30, postfiltdata->HPstates1_fix);
   WebRtcIsacfix_HighpassFilterFixDec32(in, len, WebRtcIsacfix_kHPStCoeffOut2Q30, postfiltdata->HPstates2_fix);
 
   for (k=0;k<len;k++) {
     out16[k] = in[k];
   }
 }
 
 #endif