diff options
| author | Max Kellermann <max@duempel.org> | 2013-12-22 17:39:26 +0100 |
|---|---|---|
| committer | Max Kellermann <max@duempel.org> | 2013-12-28 18:30:24 +0100 |
| commit | afcf0795c44260f54e74ec854297de439e7562c3 (patch) | |
| tree | f4ec95c5d889d81ec840f83f105a03625f663cb6 /test | |
| parent | 394e2815dbaf0edb8d0f34b6ceab96b58f071ea8 (diff) | |
pcm/Volume: improved dithering
Instead of just adding a rectangular random value before shifting back
to the normal scale, use the existing PcmDither library.
Diffstat (limited to 'test')
| -rw-r--r-- | test/test_pcm_volume.cxx | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/test/test_pcm_volume.cxx b/test/test_pcm_volume.cxx index bba5d3bbf..c3a261f7a 100644 --- a/test/test_pcm_volume.cxx +++ b/test/test_pcm_volume.cxx @@ -60,8 +60,9 @@ TestVolume(G g=G()) const auto _dest = ConstBuffer<value_type>::FromVoid(dest); for (unsigned i = 0; i < N; ++i) { - CPPUNIT_ASSERT(_dest.data[i] >= (_src[i] - 1) / 2); - CPPUNIT_ASSERT(_dest.data[i] <= _src[i] / 2 + 1); + const auto expected = (_src[i] + 1) / 2; + CPPUNIT_ASSERT(_dest.data[i] >= expected - 4); + CPPUNIT_ASSERT(_dest.data[i] <= expected + 4); } pv.Close(); |