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/*
* Copyright (C) 2003-2011 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 "test_pcm_all.h"
#include "pcm_pack.h"
#include <glib.h>
/**
* Generate a random 24 bit PCM sample.
*/
static int32_t
random24(void)
{
int32_t x = g_random_int() & 0xffffff;
if (x & 0x800000)
x |= 0xff000000;
return x;
}
void
test_pcm_pack_24(void)
{
enum { N = 256 };
int32_t src[N * 3];
for (unsigned i = 0; i < N; ++i)
src[i] = random24();
uint8_t dest[N * 3];
pcm_pack_24(dest, src, src + N);
for (unsigned i = 0; i < N; ++i) {
int32_t d;
if (G_BYTE_ORDER == G_BIG_ENDIAN)
d = (dest[i * 3] << 16) | (dest[i * 3 + 1] << 8)
| dest[i * 3 + 2];
else
d = (dest[i * 3 + 2] << 16) | (dest[i * 3 + 1] << 8)
| dest[i * 3];
if (d & 0x800000)
d |= 0xff000000;
g_assert_cmpint(d, ==, src[i]);
}
}
void
test_pcm_unpack_24(void)
{
enum { N = 256 };
uint8_t src[N * 3];
for (unsigned i = 0; i < G_N_ELEMENTS(src); ++i)
src[i] = g_random_int_range(0, 256);
int32_t dest[N];
pcm_unpack_24(dest, src, src + G_N_ELEMENTS(src));
for (unsigned i = 0; i < N; ++i) {
int32_t s;
if (G_BYTE_ORDER == G_BIG_ENDIAN)
s = (src[i * 3] << 16) | (src[i * 3 + 1] << 8)
| src[i * 3 + 2];
else
s = (src[i * 3 + 2] << 16) | (src[i * 3 + 1] << 8)
| src[i * 3];
if (s & 0x800000)
s |= 0xff000000;
g_assert_cmpint(s, ==, dest[i]);
}
}
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