Add -D option to generate extra declarations
Change-Id: Ia2b932746cd62af68781a6c953f1e3e3a25f8f49
diff --git a/tools/resampler_tools/fir.cpp b/tools/resampler_tools/fir.cpp
index 80f37bc..264382f 100644
--- a/tools/resampler_tools/fir.cpp
+++ b/tools/resampler_tools/fir.cpp
@@ -66,12 +66,13 @@
static void usage(char* name) {
fprintf(stderr,
- "usage: %s [-h] [-d] [-s sample_rate] [-c cut-off_frequency] [-n half_zero_crossings]"
+ "usage: %s [-h] [-d] [-D] [-s sample_rate] [-c cut-off_frequency] [-n half_zero_crossings]"
" [-f {float|fixed|fixed16}] [-b beta] [-v dBFS] [-l lerp]\n"
- " %s [-h] [-d] [-s sample_rate] [-c cut-off_frequency] [-n half_zero_crossings]"
+ " %s [-h] [-d] [-D] [-s sample_rate] [-c cut-off_frequency] [-n half_zero_crossings]"
" [-f {float|fixed|fixed16}] [-b beta] [-v dBFS] -p M/N\n"
" -h this help message\n"
" -d debug, print comma-separated coefficient table\n"
+ " -D generate extra declarations\n"
" -p generate poly-phase filter coefficients, with sample increment M/N\n"
" -s sample rate (48000)\n"
" -c cut-off frequency (20478)\n"
@@ -97,7 +98,8 @@
double Fs = 48000;
double Fc = 20478;
double atten = 1;
- int format = 0;
+ int format = 0; // 0=fixed, 1=float
+ bool declarations = 0;
// in order to keep the errors associated with the linear
// interpolation of the coefficients below the quantization error
@@ -158,11 +160,14 @@
int M = 1 << 4; // number of phases for interpolation
int ch;
- while ((ch = getopt(argc, argv, ":hds:c:n:f:l:m:b:p:v:z:")) != -1) {
+ while ((ch = getopt(argc, argv, ":hds:c:n:f:l:m:b:p:v:z:D")) != -1) {
switch (ch) {
case 'd':
debug = true;
break;
+ case 'D':
+ declarations = true;
+ break;
case 'p':
if (sscanf(optarg, "%u/%u", &polyM, &polyN) != 2) {
usage(argv[0]);
@@ -230,19 +235,21 @@
printf("%s ", argv[i]);
}
printf("\n");
- if (!polyphase) {
- printf("const int32_t RESAMPLE_FIR_SIZE = %d;\n", N);
- printf("const int32_t RESAMPLE_FIR_INT_PHASES = %d;\n", M);
- printf("const int32_t RESAMPLE_FIR_NUM_COEF = %d;\n", nzc);
- } else {
- printf("const int32_t RESAMPLE_FIR_SIZE = %d;\n", 2*nzc*polyN);
- printf("const int32_t RESAMPLE_FIR_NUM_COEF = %d;\n", 2*nzc);
+ if (declarations) {
+ if (!polyphase) {
+ printf("const int32_t RESAMPLE_FIR_SIZE = %d;\n", N);
+ printf("const int32_t RESAMPLE_FIR_INT_PHASES = %d;\n", M);
+ printf("const int32_t RESAMPLE_FIR_NUM_COEF = %d;\n", nzc);
+ } else {
+ printf("const int32_t RESAMPLE_FIR_SIZE = %d;\n", 2*nzc*polyN);
+ printf("const int32_t RESAMPLE_FIR_NUM_COEF = %d;\n", 2*nzc);
+ }
+ if (!format) {
+ printf("const int32_t RESAMPLE_FIR_COEF_BITS = %d;\n", nc);
+ }
+ printf("\n");
+ printf("static %s resampleFIR[] = {", !format ? "int32_t" : "float");
}
- if (!format) {
- printf("const int32_t RESAMPLE_FIR_COEF_BITS = %d;\n", nc);
- }
- printf("\n");
- printf("static %s resampleFIR[] = {", !format ? "int32_t" : "float");
}
if (!polyphase) {
@@ -283,23 +290,22 @@
if (!format) {
int64_t yi = toint(y, 1ULL<<(nc-1));
if (nc > 16) {
- printf("0x%08x, ", int32_t(yi));
+ printf("0x%08x,", int32_t(yi));
} else {
- printf("0x%04x, ", int32_t(yi)&0xffff);
+ printf("0x%04x,", int32_t(yi)&0xffff);
}
} else {
- printf("%.9g%s", y, debug ? "" : "f");
+ printf("%.9g%s", y, debug ? "," : "f,");
}
- if (debug && (i==nzc-1)) {
- } else {
- printf(", ");
+ if (i != nzc-1) {
+ printf(" ");
}
}
}
}
- if (!debug) {
+ if (!debug && declarations) {
printf("\n};");
}
printf("\n");