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test
DumpDatabase.cxx
FakeReplayGainConfig.cxx
FakeSong.cxx
ShutdownHandler.cxx
ShutdownHandler.hxx
dump_playlist.cxx
dump_rva2.cxx
dump_text_file.cxx
read_conf.cxx
read_mixer.cxx
read_tags.cxx
run_avahi.cxx
run_convert.cxx
run_decoder.cxx
run_encoder.cxx
run_filter.cxx
run_inotify.cxx
run_input.cxx
run_normalize.cxx
run_output.cxx
run_resolver.cxx
software_volume.cxx
stdbin.h
test_archive.cxx
test_archive_bzip2.sh
test_archive_iso9660.sh
test_archive_zzip.sh
test_byte_reverse.cxx
test_mixramp.cxx
test_pcm_all.hxx
test_pcm_channels.cxx
test_pcm_dither.cxx
test_pcm_format.cxx
test_pcm_main.cxx
test_pcm_mix.cxx
test_pcm_pack.cxx
test_pcm_util.hxx
test_pcm_volume.cxx
test_queue_priority.cxx
test_util.cxx
test_vorbis_encoder.cxx
visit_archive.cxx
.gitignore
AUTHORS
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Makefile.am
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autogen.sh
configure.ac
mpd.service.in
valgrind.suppressions
55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
/*
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* Copyright (C) 2003-2013 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "test_pcm_all.hxx"
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#include "test_pcm_util.hxx"
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#include "pcm/PcmDither.hxx"
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void
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PcmDitherTest::TestDither24()
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{
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constexpr unsigned N = 256;
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const auto src = TestDataBuffer<int32_t, N>(RandomInt24());
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int16_t dest[N];
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PcmDither dither;
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dither.Dither24To16(dest, src.begin(), src.end());
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for (unsigned i = 0; i < N; ++i) {
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CPPUNIT_ASSERT(dest[i] >= (src[i] >> 8) - 8);
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CPPUNIT_ASSERT(dest[i] < (src[i] >> 8) + 8);
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}
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}
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void
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PcmDitherTest::TestDither32()
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{
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constexpr unsigned N = 256;
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const auto src = TestDataBuffer<int32_t, N>();
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int16_t dest[N];
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PcmDither dither;
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dither.Dither32To16(dest, src.begin(), src.end());
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for (unsigned i = 0; i < N; ++i) {
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CPPUNIT_ASSERT(dest[i] >= (src[i] >> 16) - 8);
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CPPUNIT_ASSERT(dest[i] < (src[i] >> 16) + 8);
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}
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}
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