diff options
Diffstat (limited to '')
-rw-r--r-- | test/test_pcm_channels.cxx | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/test/test_pcm_channels.cxx b/test/test_pcm_channels.cxx new file mode 100644 index 000000000..8e013d5af --- /dev/null +++ b/test/test_pcm_channels.cxx @@ -0,0 +1,96 @@ +/* + * 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 "PcmChannels.hxx" +#include "pcm_buffer.h" + +#include <glib.h> + +void +test_pcm_channels_16() +{ + constexpr unsigned N = 256; + const auto src = TestDataBuffer<int16_t, N * 2>(); + + struct pcm_buffer buffer; + pcm_buffer_init(&buffer); + + /* stereo to mono */ + + size_t dest_size; + const int16_t *dest = + pcm_convert_channels_16(&buffer, 1, 2, src, sizeof(src), + &dest_size); + g_assert(dest != NULL); + g_assert_cmpint(dest_size, ==, sizeof(src) / 2); + for (unsigned i = 0; i < N; ++i) + g_assert_cmpint(dest[i], ==, + (src[i * 2] + src[i * 2 + 1]) / 2); + + /* mono to stereo */ + + dest = pcm_convert_channels_16(&buffer, 2, 1, src, sizeof(src), + &dest_size); + g_assert(dest != NULL); + g_assert_cmpint(dest_size, ==, sizeof(src) * 2); + for (unsigned i = 0; i < N; ++i) { + g_assert_cmpint(dest[i * 2], ==, src[i]); + g_assert_cmpint(dest[i * 2 + 1], ==, src[i]); + } + + pcm_buffer_deinit(&buffer); +} + +void +test_pcm_channels_32() +{ + constexpr unsigned N = 256; + const auto src = TestDataBuffer<int32_t, N * 2>(); + + struct pcm_buffer buffer; + pcm_buffer_init(&buffer); + + /* stereo to mono */ + + size_t dest_size; + const int32_t *dest = + pcm_convert_channels_32(&buffer, 1, 2, src, sizeof(src), + &dest_size); + g_assert(dest != NULL); + g_assert_cmpint(dest_size, ==, sizeof(src) / 2); + for (unsigned i = 0; i < N; ++i) + g_assert_cmpint(dest[i], ==, + ((int64_t)src[i * 2] + (int64_t)src[i * 2 + 1]) / 2); + + /* mono to stereo */ + + dest = pcm_convert_channels_32(&buffer, 2, 1, src, sizeof(src), + &dest_size); + g_assert(dest != NULL); + g_assert_cmpint(dest_size, ==, sizeof(src) * 2); + for (unsigned i = 0; i < N; ++i) { + g_assert_cmpint(dest[i * 2], ==, src[i]); + g_assert_cmpint(dest[i * 2 + 1], ==, src[i]); + } + + pcm_buffer_deinit(&buffer); +} |