scripts mentioned by DOCS/tech/encoding-tips.txt

written by Moritz Bunkus


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@8465 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 37 insertions, 0 deletions

diff --git a/TOOLS/countquant.pl b/TOOLS/countquant.pl
new file mode 100755
index 0000000000..2b19c5b79d
--- /dev/null
+++ b/TOOLS/countquant.pl
@@ -0,0 +1,37 @@
+#!/usr/bin/perl -w
+
+sub display_quants {
+  $frames = 0;
+  foreach $key (sort(keys(%quants))) {
+    $frames += $quants{$key};
+  }
+  foreach $key (sort({ $a <=> $b } keys(%quants))) {
+    printf("q=%d:\t% 6d, % 6.2f%%\n", $key, $quants{$key}, $quants{$key} *
+           100 / $frames);
+  }
+  print("$lines lines processed, $frames frames found\n");
+  printf("average quant. is: %f\n", $quant_total/$frames);
+}
+
+$lines = 0;
+$thislines = 0;
+$quant_total = 0;
+
+while (<STDIN>) {
+  $lines++;
+  $thislines++;
+  if (/ q:([0-9]+) /) {
+    $quants{$1}++;
+  } elsif (/ q:(([0-9]+)\.[0-9]+) /) {
+    $quants{$2}++;
+    $quant_total += $1;
+  }
+  if ((scalar(@ARGV) > 0) && ($thislines > $ARGV[0])) {
+    display_quants();
+    $thislines = 0;
+  }
+}
+
+display_quants();
+
+