Merge CV, ver=5.1; ops/methods from HV, and interface from CV where possible

[goodguy/history.git] / cinelerra-5.1 / db / utils / framediff.C

diff --git a/cinelerra-5.1/db/utils/framediff.C b/cinelerra-5.1/db/utils/framediff.C
new file mode 100644 (file)
index 0000000..cac4372
--- /dev/null
+++ b/cinelerra-5.1/db/utils/framediff.C
@@ -0,0 +1,70 @@
+
+#include<stdio.h>
+#include<stdarg.h>
+#include<time.h>
+
+#include "tdb.h"
+#include "s.C"
+
+int clip(int v) { return v > 255 ? 255 : v < 0 ? 0 : v; }
+
+int main(int ac, char **av)
+{
+  setbuf(stdout,0);
+  theDb db;
+  db.open(av[1]);
+  //db.access(av[1], 34543, 0);
+  if( !db.opened() || db.error() ) exit(1);
+  int aid = atoi(av[2]);
+  int bid = atoi(av[3]);
+
+  Video_frameLoc aframe(db.video_frame);
+  Video_frameLoc bframe(db.video_frame);
+  if( aframe.FindId(aid) ) {
+    printf("cant access frame %d\n", aid);
+    exit(1);
+  }
+  if( bframe.FindId(bid) ) {
+    printf("cant access frame %d\n", aid);
+    exit(1);
+  }
+
+  uint8_t *adat = aframe._Frame_data(), *bdat = bframe._Frame_data();
+  FILE *sfp = stdout;
+  int w = 80, h = 45;
+  int n = 0, m = 0;
+  if( ac > 4 ) {
+    FILE *fp;
+    if( !strcmp(av[4],"-") ) {
+      fp = stdout;
+      sfp = stderr;
+    }
+    else
+      fp = fopen(av[4],"w");
+    if( fp ) {
+      fprintf(fp,"P5\n%d %d\n255\n",w,h);
+      uint8_t *ap = adat, *bp = bdat;
+      for( int i=w*h; --i>=0; ++ap, ++bp ) {
+        int d = *ap-*bp;      m += d;
+        if( d < 0 ) d = -d;   n += d;
+        putc(clip(*ap-*bp+128), fp);
+      }
+      if( fp != stdout ) fclose(fp);
+    }
+    else {
+      perror(av[4]);
+      exit(1);
+    }
+  }
+  else {
+    uint8_t *ap = adat, *bp = bdat;
+    int n = 0, m = 0;
+    for( int i=w*h; --i>=0; ++ap, ++bp ) {
+      int d = *ap-*bp;      m += d;
+      if( d < 0 ) d = -d;   n += d;
+    }
+  }
+  fprintf(sfp, "%d %d\n",n,m);
+  db.close();
+  return 0;
+}