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replaygain test: Use C code to generate test files.

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This commit is contained in:
Erik de Castro Lopo
2014-12-20 14:24:41 +11:00
parent a0277fc637
commit b903670f21
2 changed files with 58 additions and 51 deletions
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58
test/test_replaygain.sh
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@@ -81,66 +81,22 @@ fi
check_flac
if mawk ; then
AWK=mawk
else
# Really hope awk is not gawk, because the following AWK script doesn't
# work correctly with gawk 4.0.1 but did with earlier versions.
AWK=awk
fi
# Replay gain tests - Test the rates which have specific filter table entries
# and verify that harmonics can be processed correctly.
tonegenerator ()
{
# When using GAWK, use --lint=posix to identify non-POSIX awk usages.
$AWK -- '
BEGIN {
samplerate = '$1';
tone = 1000;
duration = 1;
bitspersample = 24;
samplemidpoint = 1;
for (sps = 0 ; sps < bitspersample - 1 ; sps++) {
samplemidpoint *= 2;
}
samplerange = samplemidpoint - 1;
pi = 4 * atan2(1,1);
for (ix = 0; ix < duration * samplerate; ++ix) {
sample = sin(2 * pi * tone * ix / samplerate);
sample *= samplerange;
sample += samplemidpoint;
sample = int(sample);
for (bx = 0; bx < bitspersample/8; ++bx) {
byte[bx] = sample % 256;
sample /= 256;
}
while (bx--) {
printf("%c", byte[bx]);
}
}
}' /dev/null |
flac${EXE} --force --output-name=$2 \
--silent --no-seektable --no-error-on-compression-fail --force-raw-format \
--endian=big --channels=1 --bps=24 --sample-rate=$1 --sign=unsigned -
flac${EXE} --force --output-name=$2 --silent --no-seektable --no-error-on-compression-fail rpg-tone-$1.wav
}
REPLAYGAIN_FREQ=
REPLAYGAIN_FREQ="$REPLAYGAIN_FREQ 8000/-12.76"
REPLAYGAIN_FREQ="$REPLAYGAIN_FREQ 11025/-12.93"
REPLAYGAIN_FREQ="$REPLAYGAIN_FREQ 12000/-13.00"
REPLAYGAIN_FREQ="$REPLAYGAIN_FREQ 16000/-13.29"
REPLAYGAIN_FREQ="$REPLAYGAIN_FREQ 18900/-13.43"
REPLAYGAIN_FREQ="$REPLAYGAIN_FREQ 8000/-12.73"
REPLAYGAIN_FREQ="$REPLAYGAIN_FREQ 11025/-12.91"
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="$REPLAYGAIN_FREQ 24000/-13.83"
REPLAYGAIN_FREQ="$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"