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/*
* Copyright (C) 2003-2013 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "test_pcm_all.hxx"
#include "test_pcm_util.hxx"
#include "pcm/PcmFormat.hxx"
#include "pcm/PcmDither.hxx"
#include "pcm/PcmUtils.hxx"
#include "pcm/PcmBuffer.hxx"
#include "AudioFormat.hxx"
void
PcmFormatTest::TestFormat8to16()
{
constexpr unsigned N = 256;
const auto src = TestDataBuffer<int8_t, N>();
PcmBuffer buffer;
size_t d_size;
PcmDither dither;
auto d = pcm_convert_to_16(buffer, dither, SampleFormat::S8,
src, sizeof(src), &d_size);
auto d_end = pcm_end_pointer(d, d_size);
CPPUNIT_ASSERT_EQUAL(N, unsigned(d_end - d));
for (size_t i = 0; i < N; ++i)
CPPUNIT_ASSERT_EQUAL(int(src[i]), d[i] >> 8);
}
void
PcmFormatTest::TestFormat16to24()
{
constexpr unsigned N = 256;
const auto src = TestDataBuffer<int16_t, N>();
PcmBuffer buffer;
size_t d_size;
auto d = pcm_convert_to_24(buffer, SampleFormat::S16,
src, sizeof(src), &d_size);
auto d_end = pcm_end_pointer(d, d_size);
CPPUNIT_ASSERT_EQUAL(N, unsigned(d_end - d));
for (size_t i = 0; i < N; ++i)
CPPUNIT_ASSERT_EQUAL(int(src[i]), d[i] >> 8);
}
void
PcmFormatTest::TestFormat16to32()
{
constexpr unsigned N = 256;
const auto src = TestDataBuffer<int16_t, N>();
PcmBuffer buffer;
size_t d_size;
auto d = pcm_convert_to_32(buffer, SampleFormat::S16,
src, sizeof(src), &d_size);
auto d_end = pcm_end_pointer(d, d_size);
CPPUNIT_ASSERT_EQUAL(N, unsigned(d_end - d));
for (size_t i = 0; i < N; ++i)
CPPUNIT_ASSERT_EQUAL(int(src[i]), d[i] >> 16);
}
void
PcmFormatTest::TestFormatFloat()
{
constexpr unsigned N = 256;
const auto src = TestDataBuffer<int16_t, N>();
PcmBuffer buffer1, buffer2;
size_t f_size;
auto f = pcm_convert_to_float(buffer1, SampleFormat::S16,
src, sizeof(src), &f_size);
auto f_end = pcm_end_pointer(f, f_size);
CPPUNIT_ASSERT_EQUAL(N, unsigned(f_end - f));
for (auto i = f; i != f_end; ++i) {
CPPUNIT_ASSERT(*i >= -1.);
CPPUNIT_ASSERT(*i <= 1.);
}
PcmDither dither;
size_t d_size;
auto d = pcm_convert_to_16(buffer2, dither,
SampleFormat::FLOAT,
f, f_size, &d_size);
auto d_end = pcm_end_pointer(d, d_size);
CPPUNIT_ASSERT_EQUAL(N, unsigned(d_end - d));
for (size_t i = 0; i < N; ++i)
CPPUNIT_ASSERT_EQUAL(src[i], d[i]);
}
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