mpd/test/test_pcm_channels.cxx

93 lines
2.3 KiB
C++
Raw Normal View History

// SPDX-License-Identifier: GPL-2.0-or-later
// Copyright The Music Player Daemon Project
#include "test_pcm_util.hxx"
2013-04-09 01:24:52 +02:00
#include "pcm/PcmChannels.hxx"
#include "pcm/Buffer.hxx"
2018-10-16 19:01:13 +02:00
#include <gtest/gtest.h>
TEST(PcmTest, Channels16)
{
constexpr size_t N = 509;
const auto src = TestDataBuffer<int16_t, N * 2>();
2013-07-29 08:10:10 +02:00
PcmBuffer buffer;
/* stereo to mono */
auto dest = pcm_convert_channels_16(buffer, 1, 2, src);
EXPECT_NE(dest.data(), nullptr);
EXPECT_EQ(N, dest.size());
for (unsigned i = 0; i < N; ++i)
2018-10-16 19:01:13 +02:00
EXPECT_EQ(int16_t((src[i * 2] + src[i * 2 + 1]) / 2),
dest[i]);
/* mono to stereo */
dest = pcm_convert_channels_16(buffer, 2, 1, src);
EXPECT_NE(dest.data(), nullptr);
EXPECT_EQ(N * 4, dest.size());
for (unsigned i = 0; i < N; ++i) {
2018-10-16 19:01:13 +02:00
EXPECT_EQ(src[i], dest[i * 2]);
EXPECT_EQ(src[i], dest[i * 2 + 1]);
}
/* stereo to 5.1 */
dest = pcm_convert_channels_16(buffer, 6, 2, src);
EXPECT_NE(dest.data(), nullptr);
EXPECT_EQ(N * 6, dest.size());
constexpr int16_t silence = 0;
for (unsigned i = 0; i < N; ++i) {
2018-10-16 19:01:13 +02:00
EXPECT_EQ(src[i * 2], dest[i * 6]);
EXPECT_EQ(src[i * 2 + 1], dest[i * 6+ 1]);
EXPECT_EQ(silence, dest[i * 6 + 2]);
EXPECT_EQ(silence, dest[i * 6 + 3]);
EXPECT_EQ(silence, dest[i * 6 + 4]);
EXPECT_EQ(silence, dest[i * 6 + 5]);
}
}
2018-10-16 19:01:13 +02:00
TEST(PcmTest, Channels32)
{
constexpr size_t N = 509;
const auto src = TestDataBuffer<int32_t, N * 2>();
2013-07-29 08:10:10 +02:00
PcmBuffer buffer;
/* stereo to mono */
auto dest = pcm_convert_channels_32(buffer, 1, 2, src);
EXPECT_NE(dest.data(), nullptr);
EXPECT_EQ(N, dest.size());
for (unsigned i = 0; i < N; ++i)
2018-10-16 19:01:13 +02:00
EXPECT_EQ(int32_t(((int64_t)src[i * 2] + (int64_t)src[i * 2 + 1]) / 2),
dest[i]);
/* mono to stereo */
dest = pcm_convert_channels_32(buffer, 2, 1, src);
EXPECT_NE(dest.data(), nullptr);
EXPECT_EQ(N * 4, dest.size());
for (unsigned i = 0; i < N; ++i) {
2018-10-16 19:01:13 +02:00
EXPECT_EQ(src[i], dest[i * 2]);
EXPECT_EQ(src[i], dest[i * 2 + 1]);
}
/* stereo to 5.1 */
dest = pcm_convert_channels_32(buffer, 6, 2, src);
EXPECT_NE(dest.data(), nullptr);
EXPECT_EQ(N * 6, dest.size());
constexpr int32_t silence = 0;
for (unsigned i = 0; i < N; ++i) {
2018-10-16 19:01:13 +02:00
EXPECT_EQ(src[i * 2], dest[i * 6]);
EXPECT_EQ(src[i * 2 + 1], dest[i * 6+ 1]);
EXPECT_EQ(silence, dest[i * 6 + 2]);
EXPECT_EQ(silence, dest[i * 6 + 3]);
EXPECT_EQ(silence, dest[i * 6 + 4]);
EXPECT_EQ(silence, dest[i * 6 + 5]);
}
}