cmp $flacfile metaflac.flac.ok || die "ERROR, $flacfile and metaflac.flac.ok differ"
echo OK
+# Replay gain tests - Test the rates which have specific filter table entries
+# and verify that harmonics can be processed correctly.
+
+tonegenerator ()
+{
+ awk -- '
+ BEGIN {
+ samplerate = '$1';
+
+ tone = 1000;
+ duration = 1;
+ bitspersample = 24;
+
+ samplemidpoint = lshift(1, (bitspersample-1));
+ samplerange = samplemidpoint - 1;
+
+ pi = 4 * atan2(1,1);
+
+ for (ix = 0; ix < duration * samplerate; ++ix) {
+ sample = sin(2 * pi * tone * ix / samplerate);
+ sample *= samplerange;
+ sample += samplemidpoint;
+ sample = int(sample);
+ for (bx = 0; bx < bitspersample/8; ++bx) {
+ byte[bx] = sample % 256;
+ sample /= 256;
+ }
+ while (bx--) {
+ printf("%c", byte[bx]);
+ }
+ }
+
+ }' /dev/null |
+ flac --silent \
+ --endian=big --channels=1 --bps=24 --sample-rate=$1 --sign=unsigned -
+}
+
+REPLAYGAIN_FREQ=
+REPLAYGAIN_FREQ="$REPLAYGAIN_FREQ 8000/-12.73"
+REPLAYGAIN_FREQ="$REPLAYGAIN_FREQ 11025/-12.93"
+REPLAYGAIN_FREQ="$REPLAYGAIN_FREQ 11025/-12.93"
+REPLAYGAIN_FREQ="$REPLAYGAIN_FREQ 12000/-12.98"
+REPLAYGAIN_FREQ="$REPLAYGAIN_FREQ 16000/-13.27"
+REPLAYGAIN_FREQ="$REPLAYGAIN_FREQ 18900/-13.41"
+REPLAYGAIN_FREQ="$REPLAYGAIN_FREQ 22050/-13.77"
+REPLAYGAIN_FREQ="$REPLAYGAIN_FREQ 24000/-13.82"
+REPLAYGAIN_FREQ="$REPLAYGAIN_FREQ 28000/-14.06"
+REPLAYGAIN_FREQ="$REPLAYGAIN_FREQ 32000/-14.08"
+REPLAYGAIN_FREQ="$REPLAYGAIN_FREQ 36000/-14.12"
+REPLAYGAIN_FREQ="$REPLAYGAIN_FREQ 37800/-14.18"
+REPLAYGAIN_FREQ="$REPLAYGAIN_FREQ 44100/-14.17"
+REPLAYGAIN_FREQ="$REPLAYGAIN_FREQ 48000/-14.16:1:2:4"
+
+for ACTION in $REPLAYGAIN_FREQ ; do
+ if [ -n "${ACTION##*:*}" ] ; then
+ HARMONICS=1
+ else
+ HARMONICS="${ACTION#*:}"
+ fi
+ FREQ="${ACTION%%/*}"
+ GAIN="${ACTION#*/}"
+ GAIN="${GAIN%%:*}"
+ while [ -n "$HARMONICS" ] ; do
+ MULTIPLE="${HARMONICS%%:*}"
+ if [ x"$MULTIPLE" = x"$HARMONICS" ] ; then
+ HARMONICS=
+ else
+ HARMONICS="${HARMONICS#*:}"
+ fi
+ RATE=$(($MULTIPLE * FREQ))
+ [ $MULTIPLE -eq 1 -o -n "${REPLAYGAIN_FREQ##* $RATE/*}" ] || break
+ echo -n "Testing FLAC replaygain $RATE ($FREQ x $MULTIPLE) ... "
+ tonegenerator $RATE > $flacfile
+ run_metaflac --add-replay-gain $flacfile
+ run_metaflac --list $flacfile | grep REPLAYGAIN.*GAIN= |
+ while read -r REPLAYGAIN ; do
+ MEASUREDGAIN="${REPLAYGAIN##*=}"
+ MEASUREDGAIN="${MEASUREDGAIN%% *}"
+ if [ x"$MEASUREDGAIN" != x"$GAIN" ] ; then
+ die "ERROR, Expected $GAIN db instead of $REPLAYGAIN"
+ fi
+ done
+ echo OK
+ done
+done
+
+
rm -f $testdir/out.flac $testdir/out.meta
exit 0