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/*
* Copyright 2003-2021 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 "pcm/Interleave.hxx"
#include <gtest/gtest.h>
#include <algorithm>
template<typename T>
static void
TestInterleaveN()
{
static constexpr T src1[] = { 1, 4, 7 };
static constexpr T src2[] = { 2, 5, 8 };
static constexpr T src3[] = { 3, 6, 9 };
static constexpr const T *src_all[] = { src1, src2, src3 };
static constexpr size_t n_frames = std::size(src1);
static constexpr unsigned channels = std::size(src_all);
static const ConstBuffer<const void *> src((const void *const*)src_all,
channels);
static constexpr T poison = T(0xdeadbeef);
T dest[n_frames * channels + 1];
std::fill_n(dest, std::size(dest), poison);
PcmInterleave(dest, src, n_frames, sizeof(T));
EXPECT_EQ(T(1), dest[0]);
EXPECT_EQ(T(2), dest[1]);
EXPECT_EQ(T(3), dest[2]);
EXPECT_EQ(T(4), dest[3]);
EXPECT_EQ(T(5), dest[4]);
EXPECT_EQ(T(6), dest[5]);
EXPECT_EQ(T(7), dest[6]);
EXPECT_EQ(T(8), dest[7]);
EXPECT_EQ(T(9), dest[8]);
EXPECT_EQ(poison, dest[9]);
}
TEST(PcmTest, Interleave8)
{
TestInterleaveN<uint8_t>();
}
TEST(PcmTest, Interleave16)
{
TestInterleaveN<uint16_t>();
}
TEST(PcmTest, Interleave24)
{
using T = uint8_t;
static constexpr T src1[] = { 1, 2, 3, 4, 5, 6 };
static constexpr T src2[] = { 7, 8, 9, 10, 11, 12 };
static constexpr T src3[] = { 13, 14, 15, 16, 17, 18 };
static constexpr const T *src_all[] = { src1, src2, src3 };
static constexpr size_t n_frames = std::size(src1) / 3;
static constexpr unsigned channels = std::size(src_all);
static const ConstBuffer<const void *> src((const void *const*)src_all,
channels);
static constexpr T poison = 0xff;
T dest[n_frames * channels * 3 + 1];
std::fill_n(dest, std::size(dest), poison);
PcmInterleave(dest, src, n_frames, 3);
EXPECT_EQ(T(1), dest[0]);
EXPECT_EQ(T(2), dest[1]);
EXPECT_EQ(T(3), dest[2]);
EXPECT_EQ(T(7), dest[3]);
EXPECT_EQ(T(8), dest[4]);
EXPECT_EQ(T(9), dest[5]);
EXPECT_EQ(T(13), dest[6]);
EXPECT_EQ(T(14), dest[7]);
EXPECT_EQ(T(15), dest[8]);
EXPECT_EQ(T(4), dest[9]);
EXPECT_EQ(T(5), dest[10]);
EXPECT_EQ(T(6), dest[11]);
EXPECT_EQ(T(10), dest[12]);
EXPECT_EQ(T(11), dest[13]);
EXPECT_EQ(T(12), dest[14]);
EXPECT_EQ(T(16), dest[15]);
EXPECT_EQ(T(17), dest[16]);
EXPECT_EQ(T(18), dest[17]);
EXPECT_EQ(poison, dest[18]);
TestInterleaveN<uint16_t>();
}
TEST(PcmTest, Interleave32)
{
TestInterleaveN<uint8_t>();
}
TEST(PcmTest, Interleave64)
{
TestInterleaveN<uint64_t>();
}
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