Add script to format table with test results.

Signed-off-by: Stefan Westerfeld <stefan@space.twc.de>

src/gen-fer-adoc.sh

+#!/bin/bash
+
+for TEST in mp3 double-mp3 ogg
+do
+  echo ".$TEST"
+  echo '[frame="topbot",options="header",cols="12*>"]'
+  echo '|=========================='
+  echo -n "| "
+  for D in $(seq 15 -1 5)
+  do
+    DELTA=$(printf "0.0%02d\n" $D)
+    echo -n "| $DELTA"
+  done
+  echo
+  for BITRATE in 512 256 196 128 96 64
+  do
+    echo -n "| $BITRATE" | sed 's/512/wav/g'
+    for D in $(seq 15 -1 5)
+    do
+      DELTA=$(printf "0.0%02d\n" $D)
+      cat $DELTA-$TEST-* | grep ^$BITRATE | awk '{bad += $2; n += $3} END {fer=100.0*bad/n; bold=fer>0?"*":" ";printf ("| %s%.2f%s", bold, fer, bold)}'
+    done
+    echo
+  done
+  echo '|=========================='
+  echo
+done