Update a ton of audio code to use size_t more correctly and in general reduce

webrtc/common_audio/fft4g.c

Index: webrtc/common_audio/fft4g.c
diff --git a/webrtc/common_audio/fft4g.c b/webrtc/common_audio/fft4g.c
index 24d45eb6b31ab650cfad278808b0354ce82689e1..9cf7b9f6cad21d8a8368d7367912b798c179a7f4 100644
--- a/webrtc/common_audio/fft4g.c
+++ b/webrtc/common_audio/fft4g.c
@@ -27,7 +27,7 @@ functions
     dfst: Sine Transform of RDFT (Real Anti-symmetric DFT)
 function prototypes
     void cdft(int, int, float *, int *, float *);
-    void rdft(int, int, float *, int *, float *);
+    void rdft(size_t, int, float *, size_t *, float *);
     void ddct(int, int, float *, int *, float *);
     void ddst(int, int, float *, int *, float *);
     void dfct(int, float *, float *, int *, float *);
@@ -94,7 +94,7 @@ function prototypes
             ip[0] = 0; // first time only
             rdft(n, -1, a, ip, w);
     [parameters]
-        n              :data length (int)
+        n              :data length (size_t)
                         n >= 2, n = power of 2
         a[0...n-1]     :input/output data (float *)
                         <case1>
@@ -107,7 +107,7 @@ function prototypes
                                 a[2*j] = R[j], 0<=j<n/2
                                 a[2*j+1] = I[j], 0<j<n/2
                                 a[1] = R[n/2]
-        ip[0...*]      :work area for bit reversal (int *)
+        ip[0...*]      :work area for bit reversal (size_t *)
                         length of ip >= 2+sqrt(n/2)
                         strictly,
                         length of ip >=
@@ -286,18 +286,20 @@ Appendix :
     w[] and ip[] are compatible with all routines.
 */
 
-static void makewt(int nw, int *ip, float *w);
-static void makect(int nc, int *ip, float *c);
-static void bitrv2(int n, int *ip, float *a);
+#include <stddef.h>
+
+static void makewt(size_t nw, size_t *ip, float *w);
+static void makect(size_t nc, size_t *ip, float *c);
+static void bitrv2(size_t n, size_t *ip, float *a);
 #if 0  // Not used.
 static void bitrv2conj(int n, int *ip, float *a);
 #endif
-static void cftfsub(int n, float *a, float *w);
-static void cftbsub(int n, float *a, float *w);
-static void cft1st(int n, float *a, float *w);
-static void cftmdl(int n, int l, float *a, float *w);
-static void rftfsub(int n, float *a, int nc, float *c);
-static void rftbsub(int n, float *a, int nc, float *c);
+static void cftfsub(size_t n, float *a, float *w);
+static void cftbsub(size_t n, float *a, float *w);
+static void cft1st(size_t n, float *a, float *w);
+static void cftmdl(size_t n, size_t l, float *a, float *w);
+static void rftfsub(size_t n, float *a, size_t nc, float *c);
+static void rftbsub(size_t n, float *a, size_t nc, float *c);
 #if 0  // Not used.
 static void dctsub(int n, float *a, int nc, float *c)
 static void dstsub(int n, float *a, int nc, float *c)
@@ -325,9 +327,9 @@ void WebRtc_cdft(int n, int isgn, float *a, int *ip, float *w)
 #endif
 
 
-void WebRtc_rdft(int n, int isgn, float *a, int *ip, float *w)
+void WebRtc_rdft(size_t n, int isgn, float *a, size_t *ip, float *w)
 {
-    int nw, nc;
+    size_t nw, nc;
     float xi;
 
     nw = ip[0];
@@ -643,9 +645,9 @@ static void dfst(int n, float *a, float *t, int *ip, float *w)
 
 #include <math.h>
 
-static void makewt(int nw, int *ip, float *w)
+static void makewt(size_t nw, size_t *ip, float *w)
 {
-    int j, nwh;
+    size_t j, nwh;
     float delta, x, y;
 
     ip[0] = nw;
@@ -672,9 +674,9 @@ static void makewt(int nw, int *ip, float *w)
 }
 
 
-static void makect(int nc, int *ip, float *c)
+static void makect(size_t nc, size_t *ip, float *c)
 {
-    int j, nch;
+    size_t j, nch;
     float delta;
 
     ip[1] = nc;
@@ -694,9 +696,9 @@ static void makect(int nc, int *ip, float *c)
 /* -------- child routines -------- */
 
 
-static void bitrv2(int n, int *ip, float *a)
+static void bitrv2(size_t n, size_t *ip, float *a)
 {
-    int j, j1, k, k1, l, m, m2;
+    size_t j, j1, k, k1, l, m, m2;
     float xr, xi, yr, yi;
 
     ip[0] = 0;
@@ -903,9 +905,9 @@ static void bitrv2conj(int n, int *ip, float *a)
 }
 #endif
 
-static void cftfsub(int n, float *a, float *w)
+static void cftfsub(size_t n, float *a, float *w)
 {
-    int j, j1, j2, j3, l;
+    size_t j, j1, j2, j3, l;
     float x0r, x0i, x1r, x1i, x2r, x2i, x3r, x3i;
 
     l = 2;
@@ -953,9 +955,9 @@ static void cftfsub(int n, float *a, float *w)
 }
 
 
-static void cftbsub(int n, float *a, float *w)
+static void cftbsub(size_t n, float *a, float *w)
 {
-    int j, j1, j2, j3, l;
+    size_t j, j1, j2, j3, l;
     float x0r, x0i, x1r, x1i, x2r, x2i, x3r, x3i;
 
     l = 2;
@@ -1003,9 +1005,9 @@ static void cftbsub(int n, float *a, float *w)
 }
 
 
-static void cft1st(int n, float *a, float *w)
+static void cft1st(size_t n, float *a, float *w)
 {
-    int j, k1, k2;
+    size_t j, k1, k2;
     float wk1r, wk1i, wk2r, wk2i, wk3r, wk3i;
     float x0r, x0i, x1r, x1i, x2r, x2i, x3r, x3i;
 
@@ -1108,9 +1110,9 @@ static void cft1st(int n, float *a, float *w)
 }
 
 
-static void cftmdl(int n, int l, float *a, float *w)
+static void cftmdl(size_t n, size_t l, float *a, float *w)
 {
-    int j, j1, j2, j3, k, k1, k2, m, m2;
+    size_t j, j1, j2, j3, k, k1, k2, m, m2;
     float wk1r, wk1i, wk2r, wk2i, wk3r, wk3i;
     float x0r, x0i, x1r, x1i, x2r, x2i, x3r, x3i;
 
@@ -1235,9 +1237,9 @@ static void cftmdl(int n, int l, float *a, float *w)
 }
 
 
-static void rftfsub(int n, float *a, int nc, float *c)
+static void rftfsub(size_t n, float *a, size_t nc, float *c)
 {
-    int j, k, kk, ks, m;
+    size_t j, k, kk, ks, m;
     float wkr, wki, xr, xi, yr, yi;
 
     m = n >> 1;
@@ -1260,9 +1262,9 @@ static void rftfsub(int n, float *a, int nc, float *c)
 }
 
 
-static void rftbsub(int n, float *a, int nc, float *c)
+static void rftbsub(size_t n, float *a, size_t nc, float *c)
 {
-    int j, k, kk, ks, m;
+    size_t j, k, kk, ks, m;
     float wkr, wki, xr, xi, yr, yi;
 
     a[1] = -a[1];