small tool to debug .peak files

diff --git a/tools/peakdump.c b/tools/peakdump.c
new file mode 100644 (file)
index 0000000..7d88a29
--- /dev/null
+++ b/tools/peakdump.c
@@ -0,0 +1,49 @@
+// gcc -o peakdump peakdump.c -Wall -O3 -lm
+// inspect ardour .peak files
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+#define _FPP 256
+
+int main (int argc, char **argv) {
+       int c = 0, d = 0;
+       float thresh = -1.f;
+
+       if (argc < 2 || argc > 3) {
+               fprintf(stderr, "usage: %s [threshold] <peakfile>\n", argv[0]);
+               return -1;
+       }
+
+       if (argc == 3) {
+               thresh = atof(argv[1]);
+       }
+
+       FILE *F = fopen(argv[argc-1], "r");
+
+       if (!F) {
+               fprintf(stderr, "Cannot open file '%s'\n", argv[argc-1]);
+               return -1;
+       }
+
+       printf("   #    )   audio sample range   :   MIN    MAX\n");
+       while (!feof(F)) {
+               struct PeakData {
+                       float min;
+                       float max;
+               } buf;
+
+               if (fread(&buf, sizeof(struct PeakData), 1, F) <= 0) {
+                       break;
+               }
+               if (fabsf(buf.min) > thresh || fabsf(buf.max) > thresh) {
+                       printf("%8d) %10d - %10d: %+.3f %+.3f\n", ++d,
+                                       _FPP * c, _FPP * (c + 1) - 1,
+                                       buf.min, buf.max);
+               }
+               ++c;
+       }
+       fclose(F);
+       return 0;
+}