164 lines
3.8 KiB
C++
164 lines
3.8 KiB
C++
/*
|
|
* Copyright 2003-2017 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_util.hxx"
|
|
#include "pcm/PcmFormat.hxx"
|
|
#include "pcm/PcmDither.hxx"
|
|
#include "pcm/PcmUtils.hxx"
|
|
#include "pcm/PcmBuffer.hxx"
|
|
#include "pcm/SampleFormat.hxx"
|
|
|
|
#include <gtest/gtest.h>
|
|
|
|
TEST(PcmTest, Format8To16)
|
|
{
|
|
constexpr size_t N = 509;
|
|
const auto src = TestDataBuffer<int8_t, N>();
|
|
|
|
PcmBuffer buffer;
|
|
|
|
PcmDither dither;
|
|
auto d = pcm_convert_to_16(buffer, dither, SampleFormat::S8, src);
|
|
EXPECT_EQ(N, d.size);
|
|
|
|
for (size_t i = 0; i < N; ++i)
|
|
EXPECT_EQ(int(src[i]), d[i] >> 8);
|
|
}
|
|
|
|
TEST(PcmTest, Format16To24)
|
|
{
|
|
constexpr size_t N = 509;
|
|
const auto src = TestDataBuffer<int16_t, N>();
|
|
|
|
PcmBuffer buffer;
|
|
|
|
auto d = pcm_convert_to_24(buffer, SampleFormat::S16, src);
|
|
EXPECT_EQ(N, d.size);
|
|
|
|
for (size_t i = 0; i < N; ++i)
|
|
EXPECT_EQ(int(src[i]), d[i] >> 8);
|
|
}
|
|
|
|
TEST(PcmTest, Format16To32)
|
|
{
|
|
constexpr size_t N = 509;
|
|
const auto src = TestDataBuffer<int16_t, N>();
|
|
|
|
PcmBuffer buffer;
|
|
|
|
auto d = pcm_convert_to_32(buffer, SampleFormat::S16, src);
|
|
EXPECT_EQ(N, d.size);
|
|
|
|
for (size_t i = 0; i < N; ++i)
|
|
EXPECT_EQ(int(src[i]), d[i] >> 16);
|
|
}
|
|
|
|
TEST(PcmTest, FormatFloat16)
|
|
{
|
|
constexpr size_t N = 509;
|
|
const auto src = TestDataBuffer<int16_t, N>();
|
|
|
|
PcmBuffer buffer1, buffer2;
|
|
|
|
auto f = pcm_convert_to_float(buffer1, SampleFormat::S16, src);
|
|
EXPECT_EQ(N, f.size);
|
|
|
|
for (size_t i = 0; i != f.size; ++i) {
|
|
EXPECT_GE(f[i], -1.);
|
|
EXPECT_LE(f[i], 1.);
|
|
}
|
|
|
|
PcmDither dither;
|
|
|
|
auto d = pcm_convert_to_16(buffer2, dither,
|
|
SampleFormat::FLOAT,
|
|
f.ToVoid());
|
|
EXPECT_EQ(N, d.size);
|
|
|
|
for (size_t i = 0; i < N; ++i)
|
|
EXPECT_EQ(src[i], d[i]);
|
|
|
|
/* check if clamping works */
|
|
float *writable = const_cast<float *>(f.data);
|
|
*writable++ = 1.01;
|
|
*writable++ = 10;
|
|
*writable++ = -1.01;
|
|
*writable++ = -10;
|
|
|
|
d = pcm_convert_to_16(buffer2, dither,
|
|
SampleFormat::FLOAT,
|
|
f.ToVoid());
|
|
EXPECT_EQ(N, d.size);
|
|
|
|
EXPECT_EQ(32767, int(d[0]));
|
|
EXPECT_EQ(32767, int(d[1]));
|
|
EXPECT_EQ(-32768, int(d[2]));
|
|
EXPECT_EQ(-32768, int(d[3]));
|
|
|
|
for (size_t i = 4; i < N; ++i)
|
|
EXPECT_EQ(src[i], d[i]);
|
|
}
|
|
|
|
TEST(PcmTest, FormatFloat32)
|
|
{
|
|
constexpr size_t N = 509;
|
|
const auto src = TestDataBuffer<int32_t, N>();
|
|
|
|
PcmBuffer buffer1, buffer2;
|
|
|
|
auto f = pcm_convert_to_float(buffer1, SampleFormat::S32, src);
|
|
EXPECT_EQ(N, f.size);
|
|
|
|
for (size_t i = 0; i != f.size; ++i) {
|
|
EXPECT_GE(f[i], -1.);
|
|
EXPECT_LE(f[i], 1.);
|
|
}
|
|
|
|
auto d = pcm_convert_to_32(buffer2,
|
|
SampleFormat::FLOAT,
|
|
f.ToVoid());
|
|
EXPECT_EQ(N, d.size);
|
|
|
|
constexpr int error = 64;
|
|
|
|
for (size_t i = 0; i < N; ++i)
|
|
EXPECT_NEAR(src[i], d[i], error);
|
|
|
|
/* check if clamping works */
|
|
float *writable = const_cast<float *>(f.data);
|
|
*writable++ = 1.01;
|
|
*writable++ = 10;
|
|
*writable++ = -1.01;
|
|
*writable++ = -10;
|
|
|
|
d = pcm_convert_to_32(buffer2,
|
|
SampleFormat::FLOAT,
|
|
f.ToVoid());
|
|
EXPECT_EQ(N, d.size);
|
|
|
|
EXPECT_EQ(2147483647, int(d[0]));
|
|
EXPECT_EQ(2147483647, int(d[1]));
|
|
EXPECT_EQ(-2147483648, int(d[2]));
|
|
EXPECT_EQ(-2147483648, int(d[3]));
|
|
|
|
for (size_t i = 4; i < N; ++i)
|
|
EXPECT_NEAR(src[i], d[i], error);
|
|
}
|