97 lines
2.6 KiB
C++
97 lines
2.6 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 "config.h"
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#include "test_pcm_all.hxx"
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#include "test_pcm_util.hxx"
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#include "PcmChannels.hxx"
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#include "pcm_buffer.h"
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#include <glib.h>
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void
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test_pcm_channels_16()
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{
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constexpr unsigned N = 256;
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const auto src = TestDataBuffer<int16_t, N * 2>();
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struct pcm_buffer buffer;
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pcm_buffer_init(&buffer);
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/* stereo to mono */
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size_t dest_size;
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const int16_t *dest =
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pcm_convert_channels_16(&buffer, 1, 2, src, sizeof(src),
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&dest_size);
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g_assert(dest != NULL);
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g_assert_cmpint(dest_size, ==, sizeof(src) / 2);
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for (unsigned i = 0; i < N; ++i)
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g_assert_cmpint(dest[i], ==,
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(src[i * 2] + src[i * 2 + 1]) / 2);
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/* mono to stereo */
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dest = pcm_convert_channels_16(&buffer, 2, 1, src, sizeof(src),
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&dest_size);
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g_assert(dest != NULL);
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g_assert_cmpint(dest_size, ==, sizeof(src) * 2);
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for (unsigned i = 0; i < N; ++i) {
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g_assert_cmpint(dest[i * 2], ==, src[i]);
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g_assert_cmpint(dest[i * 2 + 1], ==, src[i]);
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}
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pcm_buffer_deinit(&buffer);
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}
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void
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test_pcm_channels_32()
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{
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constexpr unsigned N = 256;
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const auto src = TestDataBuffer<int32_t, N * 2>();
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struct pcm_buffer buffer;
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pcm_buffer_init(&buffer);
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/* stereo to mono */
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size_t dest_size;
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const int32_t *dest =
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pcm_convert_channels_32(&buffer, 1, 2, src, sizeof(src),
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&dest_size);
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g_assert(dest != NULL);
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g_assert_cmpint(dest_size, ==, sizeof(src) / 2);
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for (unsigned i = 0; i < N; ++i)
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g_assert_cmpint(dest[i], ==,
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((int64_t)src[i * 2] + (int64_t)src[i * 2 + 1]) / 2);
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/* mono to stereo */
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dest = pcm_convert_channels_32(&buffer, 2, 1, src, sizeof(src),
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&dest_size);
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g_assert(dest != NULL);
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g_assert_cmpint(dest_size, ==, sizeof(src) * 2);
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for (unsigned i = 0; i < N; ++i) {
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g_assert_cmpint(dest[i * 2], ==, src[i]);
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g_assert_cmpint(dest[i * 2 + 1], ==, src[i]);
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}
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pcm_buffer_deinit(&buffer);
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}
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