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PL286/system/media/audio_utils/tests/primitives_tests.cpp

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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
//#define LOG_NDEBUG 0
#define LOG_TAG "audio_utils_primitives_tests"
#include <math.h>
#include <vector>
#include <gtest/gtest.h>
#include <log/log.h>
#include <audio_utils/primitives.h>
#include <audio_utils/format.h>
#include <audio_utils/channels.h>
#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
static const int32_t lim8pos = 255;
static const int32_t lim8neg = 0;
static const int32_t lim16pos = (1 << 15) - 1;
static const int32_t lim16neg = -(1 << 15);
static const int32_t lim24pos = (1 << 23) - 1;
static const int32_t lim24neg = -(1 << 23);
inline void testClamp8(float f)
{
// f is in native u8 scaling to test rounding
uint8_t uval = clamp8_from_float((f - 128) / (1 << 7));
// test clamping
ALOGV("clamp8_from_float(%f) = %u\n", f, uval);
if (f > lim8pos) {
EXPECT_EQ(lim8pos, uval);
} else if (f < lim8neg) {
EXPECT_EQ(lim8neg, uval);
}
// if in range, make sure round trip clamp and conversion is correct.
if (f < lim8pos - 1. && f > lim8neg + 1.) {
uint8_t uval2 = clamp8_from_float(float_from_u8(uval));
int diff = abs(uval - uval2);
EXPECT_LE(diff, 1);
}
}
inline void testClamp16(float f)
{
int16_t ival = clamp16_from_float(f / (1 << 15));
// test clamping
ALOGV("clamp16_from_float(%f) = %d\n", f, ival);
if (f > lim16pos) {
EXPECT_EQ(lim16pos, ival);
} else if (f < lim16neg) {
EXPECT_EQ(lim16neg, ival);
}
// if in range, make sure round trip clamp and conversion is correct.
if (f < lim16pos - 1. && f > lim16neg + 1.) {
int ival2 = clamp16_from_float(float_from_i16(ival));
int diff = abs(ival - ival2);
EXPECT_LE(diff, 1);
}
}
inline void testClamp24(float f)
{
int32_t ival = clamp24_from_float(f / (1 << 23));
// test clamping
ALOGV("clamp24_from_float(%f) = %d\n", f, ival);
if (f > lim24pos) {
EXPECT_EQ(lim24pos, ival);
} else if (f < lim24neg) {
EXPECT_EQ(lim24neg, ival);
}
// if in range, make sure round trip clamp and conversion is correct.
if (f < lim24pos - 1. && f > lim24neg + 1.) {
int ival2 = clamp24_from_float(float_from_q8_23(ival));
int diff = abs(ival - ival2);
EXPECT_LE(diff, 1);
}
}
template<typename T>
void checkMonotone(const T *ary, size_t size)
{
for (size_t i = 1; i < size; ++i) {
EXPECT_LT(ary[i-1], ary[i]);
}
}
void checkMonotonep24(uint8_t * pary, size_t size)
{
size_t frames = size/3;
for (size_t i = 1; i < frames; ++i) {
EXPECT_LT(i32_from_p24(pary + 3*(i-1)), i32_from_p24(pary + 3*i));
}
}
TEST(audio_utils_primitives, clamp_to_int) {
static const float testArray[] = {
-NAN, -INFINITY,
-1.e20, -32768., 63.9,
-3.5, -3.4, -2.5, 2.4, -1.5, -1.4, -0.5, -0.2, 0., 0.2, 0.5, 0.8,
1.4, 1.5, 1.8, 2.4, 2.5, 2.6, 3.4, 3.5,
32767., 32768., 1.e20,
INFINITY, NAN };
for (size_t i = 0; i < ARRAY_SIZE(testArray); ++i) {
testClamp8(testArray[i]);
}
for (size_t i = 0; i < ARRAY_SIZE(testArray); ++i) {
testClamp16(testArray[i]);
}
for (size_t i = 0; i < ARRAY_SIZE(testArray); ++i) {
testClamp24(testArray[i]);
}
// used for ULP testing (tweaking the lsb of the float)
union {
int32_t i;
float f;
} val;
int32_t res;
// check clampq4_27_from_float()
val.f = 16.;
res = clampq4_27_from_float(val.f);
EXPECT_EQ(0x7fffffff, res);
val.i--;
res = clampq4_27_from_float(val.f);
EXPECT_LE(res, 0x7fffffff);
EXPECT_GE(res, 0x7fff0000);
val.f = -16.;
res = clampq4_27_from_float(val.f);
EXPECT_EQ((int32_t)0x80000000, res); // negative
val.i++;
res = clampq4_27_from_float(val.f);
EXPECT_GE(res, (int32_t)0x80000000); // negative
EXPECT_LE(res, (int32_t)0x80008000); // negative
// check u4_28_from_float and u4_12_from_float
uint32_t ures;
uint16_t ures16;
val.f = 16.;
ures = u4_28_from_float(val.f);
EXPECT_EQ(0xffffffff, ures);
ures16 = u4_12_from_float(val.f);
EXPECT_EQ(0xffff, ures16);
val.f = -1.;
ures = u4_28_from_float(val.f);
EXPECT_EQ((uint32_t)0, ures);
ures16 = u4_12_from_float(val.f);
EXPECT_EQ(0, ures16);
// check float_from_u4_28 and float_from_u4_12 (roundtrip)
for (uint32_t v = 0x100000; v <= 0xff000000; v += 0x100000) {
ures = u4_28_from_float(float_from_u4_28(v));
EXPECT_EQ(ures, v);
}
for (uint32_t v = 0; v <= 0xffff; ++v) { // uint32_t prevents overflow
ures16 = u4_12_from_float(float_from_u4_12(v));
EXPECT_EQ(ures16, v);
}
// check infinity
EXPECT_EQ(0, clamp8_from_float(-INFINITY));
EXPECT_EQ(255, clamp8_from_float(INFINITY));
}
TEST(audio_utils_primitives, memcpy) {
// test round-trip.
int16_t *i16ref = new int16_t[65536];
int16_t *i16ary = new int16_t[65536];
int32_t *i32ary = new int32_t[65536];
float *fary = new float[65536];
uint8_t *pary = new uint8_t[65536*3];
for (size_t i = 0; i < 65536; ++i) {
i16ref[i] = i16ary[i] = i - 32768;
}
// do round-trip testing i16 and float
memcpy_to_float_from_i16(fary, i16ary, 65536);
memset(i16ary, 0, 65536 * sizeof(i16ary[0]));
checkMonotone(fary, 65536);
memcpy_to_i16_from_float(i16ary, fary, 65536);
memset(fary, 0, 65536 * sizeof(fary[0]));
checkMonotone(i16ary, 65536);
// TODO make a template case for the following?
// do round-trip testing p24 to i16 and float
memcpy_to_p24_from_i16(pary, i16ary, 65536);
memset(i16ary, 0, 65536 * sizeof(i16ary[0]));
// check an intermediate format at a position(???)
#if 0
printf("pary[%d].0 = %u pary[%d].1 = %u pary[%d].2 = %u\n",
1025, (unsigned) pary[1025*3],
1025, (unsigned) pary[1025*3+1],
1025, (unsigned) pary[1025*3+2]
);
#endif
memcpy_to_float_from_p24(fary, pary, 65536);
memset(pary, 0, 65536 * 3 * sizeof(pary[0]));
checkMonotone(fary, 65536);
memcpy_to_p24_from_float(pary, fary, 65536);
memset(fary, 0, 65536 * sizeof(fary[0]));
memcpy_to_i16_from_p24(i16ary, pary, 65536);
memset(pary, 0, 65536 * 3 * sizeof(pary[0]));
checkMonotone(i16ary, 65536);
// do round-trip testing q8_23 to i16 and float
memcpy_to_q8_23_from_i16(i32ary, i16ary, 65536);
memset(i16ary, 0, 65536 * sizeof(i16ary[0]));
checkMonotone(i32ary, 65536);
memcpy_to_float_from_q8_23(fary, i32ary, 65536);
memset(i32ary, 0, 65536 * sizeof(i32ary[0]));
checkMonotone(fary, 65536);
memcpy_to_q8_23_from_float_with_clamp(i32ary, fary, 65536);
memset(fary, 0, 65536 * sizeof(fary[0]));
checkMonotone(i32ary, 65536);
memcpy_to_i16_from_q8_23(i16ary, i32ary, 65536);
memset(i32ary, 0, 65536 * sizeof(i32ary[0]));
checkMonotone(i16ary, 65536);
// do round-trip testing i32 to i16 and float
memcpy_to_i32_from_i16(i32ary, i16ary, 65536);
memset(i16ary, 0, 65536 * sizeof(i16ary[0]));
checkMonotone(i32ary, 65536);
memcpy_to_float_from_i32(fary, i32ary, 65536);
memset(i32ary, 0, 65536 * sizeof(i32ary[0]));
checkMonotone(fary, 65536);
memcpy_to_i32_from_float(i32ary, fary, 65536);
memset(fary, 0, 65536 * sizeof(fary[0]));
checkMonotone(i32ary, 65536);
memcpy_to_i16_from_i32(i16ary, i32ary, 65536);
memset(i32ary, 0, 65536 * sizeof(i32ary[0]));
checkMonotone(i16ary, 65536);
// do round-trip test i16 -> p24 -> i32 -> p24 -> q8_23 -> p24 -> i16
memcpy_to_p24_from_i16(pary, i16ary, 65536);
memset(i16ary, 0, 65536 * sizeof(i16ary[0]));
checkMonotonep24(pary, 65536 * 3);
memcpy_to_i32_from_p24(i32ary, pary, 65536);
memset(pary, 0, 65536 * 3 * sizeof(pary[0]));
checkMonotone(i32ary, 65536);
memcpy_to_p24_from_i32(pary, i32ary, 65536);
memset(i32ary, 0, 65536 * sizeof(i32ary[0]));
checkMonotonep24(pary, 65536 * 3);
memcpy_to_q8_23_from_p24(i32ary, pary, 65536);
memset(pary, 0, 65536 * 3 * sizeof(pary[0]));
checkMonotone(i32ary, 65536);
memcpy_to_p24_from_q8_23(pary, i32ary, 65536);
memset(i32ary, 0, 65536 * sizeof(i32ary[0]));
checkMonotonep24(pary, 65536 * 3);
memcpy_to_i16_from_p24(i16ary, pary, 65536);
memset(pary, 0, 65536 * 3 * sizeof(pary[0]));
checkMonotone(i16ary, 65536);
// do partial round-trip testing q4_27 to i16 and float
memcpy_to_float_from_i16(fary, i16ary, 65536);
//memset(i16ary, 0, 65536 * sizeof(i16ary[0])); // not cleared: we don't do full roundtrip
memcpy_to_q4_27_from_float(i32ary, fary, 65536);
memset(fary, 0, 65536 * sizeof(fary[0]));
checkMonotone(i32ary, 65536);
memcpy_to_float_from_q4_27(fary, i32ary, 65536);
memset(i32ary, 0, 65536 * sizeof(i32ary[0]));
checkMonotone(fary, 65536);
// at the end, our i16ary must be the same. (Monotone should be equivalent to this)
EXPECT_EQ(0, memcmp(i16ary, i16ref, 65536*sizeof(i16ary[0])));
// test round-trip for u8 and float.
uint8_t *u8ref = new uint8_t[256];
uint8_t *u8ary = new uint8_t[256];
for (unsigned i = 0; i < 256; ++i) {
u8ref[i] = i;
}
memcpy_to_float_from_u8(fary, u8ref, 256);
memcpy_to_u8_from_float(u8ary, fary, 256);
EXPECT_EQ(0, memcmp(u8ary, u8ref, 256 * sizeof(u8ary[0])));
delete[] u8ref;
delete[] u8ary;
delete[] i16ref;
delete[] i16ary;
delete[] i32ary;
delete[] fary;
delete[] pary;
}
template<typename T>
void checkMonotoneOrZero(const T *ary, size_t size)
{
T least = 0;
for (size_t i = 1; i < size; ++i) {
if (ary[i]) {
EXPECT_LT(least, ary[i]);
least = ary[i];
}
}
}
TEST(audio_utils_primitives, memcpy_by_channel_mask) {
uint32_t dst_mask;
uint32_t src_mask;
uint16_t *u16ref = new uint16_t[65536];
uint16_t *u16ary = new uint16_t[65536];
for (size_t i = 0; i < 65536; ++i) {
u16ref[i] = i;
}
// Test when src mask is 0. Everything copied is zero.
src_mask = 0;
dst_mask = 0x8d;
memset(u16ary, 0x99, 65536 * sizeof(u16ref[0]));
memcpy_by_channel_mask(u16ary, dst_mask, u16ref, src_mask, sizeof(u16ref[0]),
65536 / popcount(dst_mask));
EXPECT_EQ((size_t)0, nonZeroMono16((int16_t*)u16ary, 65530));
// Test when dst_mask is 0. Nothing should be copied.
src_mask = 0;
dst_mask = 0;
memset(u16ary, 0, 65536 * sizeof(u16ref[0]));
memcpy_by_channel_mask(u16ary, dst_mask, u16ref, src_mask, sizeof(u16ref[0]),
65536);
EXPECT_EQ((size_t)0, nonZeroMono16((int16_t*)u16ary, 65530));
// Test when masks are the same. One to one copy.
src_mask = dst_mask = 0x8d;
memset(u16ary, 0x99, 65536 * sizeof(u16ref[0]));
memcpy_by_channel_mask(u16ary, dst_mask, u16ref, src_mask, sizeof(u16ref[0]), 555);
EXPECT_EQ(0, memcmp(u16ary, u16ref, 555 * sizeof(u16ref[0]) * popcount(dst_mask)));
// Test with a gap in source:
// Input 3 samples, output 4 samples, one zero inserted.
src_mask = 0x8c;
dst_mask = 0x8d;
memset(u16ary, 0x9, 65536 * sizeof(u16ary[0]));
memcpy_by_channel_mask(u16ary, dst_mask, u16ref, src_mask, sizeof(u16ref[0]),
65536 / popcount(dst_mask));
checkMonotoneOrZero(u16ary, 65536);
EXPECT_EQ((size_t)(65536 * 3 / 4 - 1), nonZeroMono16((int16_t*)u16ary, 65536));
// Test with a gap in destination:
// Input 4 samples, output 3 samples, one deleted
src_mask = 0x8d;
dst_mask = 0x8c;
memset(u16ary, 0x9, 65536 * sizeof(u16ary[0]));
memcpy_by_channel_mask(u16ary, dst_mask, u16ref, src_mask, sizeof(u16ref[0]),
65536 / popcount(src_mask));
checkMonotone(u16ary, 65536 * 3 / 4);
delete[] u16ref;
delete[] u16ary;
}
void memcpy_by_channel_mask2(void *dst, uint32_t dst_mask,
const void *src, uint32_t src_mask, size_t sample_size, size_t count)
{
int8_t idxary[32];
uint32_t src_channels = popcount(src_mask);
uint32_t dst_channels =
memcpy_by_index_array_initialization(idxary, 32, dst_mask, src_mask);
memcpy_by_index_array(dst, dst_channels, src, src_channels, idxary, sample_size, count);
}
// a modified version of the memcpy_by_channel_mask test
// but using 24 bit type and memcpy_by_index_array()
TEST(audio_utils_primitives, memcpy_by_index_array) {
uint32_t dst_mask;
uint32_t src_mask;
typedef struct {uint8_t c[3];} __attribute__((__packed__)) uint8x3_t;
uint8x3_t *u24ref = new uint8x3_t[65536];
uint8x3_t *u24ary = new uint8x3_t[65536];
uint16_t *u16ref = new uint16_t[65536];
uint16_t *u16ary = new uint16_t[65536];
EXPECT_EQ((size_t)3, sizeof(uint8x3_t)); // 3 bytes per struct
// tests prepare_index_array_from_masks()
EXPECT_EQ((size_t)4, memcpy_by_index_array_initialization(NULL, 0, 0x8d, 0x8c));
EXPECT_EQ((size_t)3, memcpy_by_index_array_initialization(NULL, 0, 0x8c, 0x8d));
for (size_t i = 0; i < 65536; ++i) {
u16ref[i] = i;
}
memcpy_to_p24_from_i16((uint8_t*)u24ref, (int16_t*)u16ref, 65536);
// Test when src mask is 0. Everything copied is zero.
src_mask = 0;
dst_mask = 0x8d;
memset(u24ary, 0x99, 65536 * sizeof(u24ary[0]));
memcpy_by_channel_mask2(u24ary, dst_mask, u24ref, src_mask, sizeof(u24ref[0]),
65536 / popcount(dst_mask));
memcpy_to_i16_from_p24((int16_t*)u16ary, (uint8_t*)u24ary, 65536);
EXPECT_EQ((size_t)0, nonZeroMono16((int16_t*)u16ary, 65530));
// Test when dst_mask is 0. Nothing should be copied.
src_mask = 0;
dst_mask = 0;
memset(u24ary, 0, 65536 * sizeof(u24ary[0]));
memcpy_by_channel_mask2(u24ary, dst_mask, u24ref, src_mask, sizeof(u24ref[0]),
65536);
memcpy_to_i16_from_p24((int16_t*)u16ary, (uint8_t*)u24ary, 65536);
EXPECT_EQ((size_t)0, nonZeroMono16((int16_t*)u16ary, 65530));
// Test when masks are the same. One to one copy.
src_mask = dst_mask = 0x8d;
memset(u24ary, 0x99, 65536 * sizeof(u24ary[0]));
memcpy_by_channel_mask2(u24ary, dst_mask, u24ref, src_mask, sizeof(u24ref[0]), 555);
EXPECT_EQ(0, memcmp(u24ary, u24ref, 555 * sizeof(u24ref[0]) * popcount(dst_mask)));
// Test with a gap in source:
// Input 3 samples, output 4 samples, one zero inserted.
src_mask = 0x8c;
dst_mask = 0x8d;
memset(u24ary, 0x9, 65536 * sizeof(u24ary[0]));
memcpy_by_channel_mask2(u24ary, dst_mask, u24ref, src_mask, sizeof(u24ref[0]),
65536 / popcount(dst_mask));
memcpy_to_i16_from_p24((int16_t*)u16ary, (uint8_t*)u24ary, 65536);
checkMonotoneOrZero(u16ary, 65536);
EXPECT_EQ((size_t)(65536 * 3 / 4 - 1), nonZeroMono16((int16_t*)u16ary, 65536));
// Test with a gap in destination:
// Input 4 samples, output 3 samples, one deleted
src_mask = 0x8d;
dst_mask = 0x8c;
memset(u24ary, 0x9, 65536 * sizeof(u24ary[0]));
memcpy_by_channel_mask2(u24ary, dst_mask, u24ref, src_mask, sizeof(u24ref[0]),
65536 / popcount(src_mask));
memcpy_to_i16_from_p24((int16_t*)u16ary, (uint8_t*)u24ary, 65536);
checkMonotone(u16ary, 65536 * 3 / 4);
delete[] u16ref;
delete[] u16ary;
delete[] u24ref;
delete[] u24ary;
}
void memcpy_by_channel_mask_dst_index(void *dst, uint32_t dst_mask,
const void *src, uint32_t src_mask, size_t sample_size, size_t count)
{
int8_t idxary[32];
uint32_t src_channels = popcount(src_mask);
uint32_t dst_channels =
memcpy_by_index_array_initialization_dst_index(idxary, 32, dst_mask, src_mask);
memcpy_by_index_array(dst, dst_channels, src, src_channels, idxary, sample_size, count);
}
// a modified version of the memcpy_by_channel_mask test
// but using 24 bit type and memcpy_by_index_array()
TEST(audio_utils_primitives, memcpy_by_index_array_dst_index) {
uint32_t dst_mask;
uint32_t src_mask;
typedef struct {uint8_t c[3];} __attribute__((__packed__)) uint8x3_t;
uint8x3_t *u24ref = new uint8x3_t[65536];
uint8x3_t *u24ary = new uint8x3_t[65536];
uint16_t *u16ref = new uint16_t[65536];
uint16_t *u16ary = new uint16_t[65536];
EXPECT_EQ((size_t)3, sizeof(uint8x3_t)); // 3 bytes per struct
// tests prepare_index_array_from_masks()
EXPECT_EQ((size_t)4, memcpy_by_index_array_initialization_dst_index(NULL, 0, 0x8d, 0x8c));
EXPECT_EQ((size_t)3, memcpy_by_index_array_initialization_dst_index(NULL, 0, 0x8c, 0x8d));
for (size_t i = 0; i < 65536; ++i) {
u16ref[i] = i;
}
memcpy_to_p24_from_i16((uint8_t*)u24ref, (int16_t*)u16ref, 65536);
// Test when src mask is 0. Everything copied is zero.
src_mask = 0;
dst_mask = 0x8d;
memset(u24ary, 0x99, 65536 * sizeof(u24ary[0]));
memcpy_by_channel_mask_dst_index(u24ary, dst_mask, u24ref, src_mask, sizeof(u24ref[0]),
65536 / popcount(dst_mask));
memcpy_to_i16_from_p24((int16_t*)u16ary, (uint8_t*)u24ary, 65536);
EXPECT_EQ((size_t)0, nonZeroMono16((int16_t*)u16ary, 65530));
// Test when dst_mask is 0. Nothing should be copied.
src_mask = 0;
dst_mask = 0;
memset(u24ary, 0, 65536 * sizeof(u24ary[0]));
memcpy_by_channel_mask_dst_index(u24ary, dst_mask, u24ref, src_mask, sizeof(u24ref[0]),
65536);
memcpy_to_i16_from_p24((int16_t*)u16ary, (uint8_t*)u24ary, 65536);
EXPECT_EQ((size_t)0, nonZeroMono16((int16_t*)u16ary, 65530));
// Test when dst mask equals source count size. One to one copy.
src_mask = 0x8d;
dst_mask = 0x0f;
memset(u24ary, 0x99, 65536 * sizeof(u24ary[0]));
memcpy_by_channel_mask_dst_index(u24ary, dst_mask, u24ref, src_mask, sizeof(u24ref[0]), 555);
EXPECT_EQ(0, memcmp(u24ary, u24ref, 555 * sizeof(u24ref[0]) * popcount(dst_mask)));
// Test with a gap in source:
// Input 3 samples, output 4 samples, one zero inserted.
src_mask = 0x8c;
dst_mask = 0x0f;
memset(u24ary, 0x9, 65536 * sizeof(u24ary[0]));
memcpy_by_channel_mask_dst_index(u24ary, dst_mask, u24ref, src_mask, sizeof(u24ref[0]),
65536 / popcount(dst_mask));
memcpy_to_i16_from_p24((int16_t*)u16ary, (uint8_t*)u24ary, 65536);
checkMonotoneOrZero(u16ary, 65536);
EXPECT_EQ((size_t)(65536 * 3 / 4 - 1), nonZeroMono16((int16_t*)u16ary, 65536));
// Test with a gap in destination:
// Input 4 samples, output 3 samples, one deleted
src_mask = 0x8d;
dst_mask = 0x07;
memset(u24ary, 0x9, 65536 * sizeof(u24ary[0]));
memcpy_by_channel_mask_dst_index(u24ary, dst_mask, u24ref, src_mask, sizeof(u24ref[0]),
65536 / popcount(src_mask));
memcpy_to_i16_from_p24((int16_t*)u16ary, (uint8_t*)u24ary, 65536);
checkMonotone(u16ary, 65536 * 3 / 4);
delete[] u16ref;
delete[] u16ary;
delete[] u24ref;
delete[] u24ary;
}
void memcpy_by_channel_mask_src_index(void *dst, uint32_t dst_mask,
const void *src, uint32_t src_mask, size_t sample_size, size_t count)
{
int8_t idxary[32];
uint32_t src_channels = popcount(src_mask);
uint32_t dst_channels =
memcpy_by_index_array_initialization_src_index(idxary, 32, dst_mask, src_mask);
memcpy_by_index_array(dst, dst_channels, src, src_channels, idxary, sample_size, count);
}
// a modified version of the memcpy_by_channel_mask test
// but using 24 bit type and memcpy_by_index_array()
TEST(audio_utils_primitives, memcpy_by_index_array_src_index) {
uint32_t dst_mask;
uint32_t src_mask;
typedef struct {uint8_t c[3];} __attribute__((__packed__)) uint8x3_t;
uint8x3_t *u24ref = new uint8x3_t[65536];
uint8x3_t *u24ary = new uint8x3_t[65536];
uint16_t *u16ref = new uint16_t[65536];
uint16_t *u16ary = new uint16_t[65536];
EXPECT_EQ((size_t)3, sizeof(uint8x3_t)); // 3 bytes per struct
// tests prepare_index_array_from_masks()
EXPECT_EQ((size_t)4, memcpy_by_index_array_initialization_src_index(NULL, 0, 0x8d, 0x8c));
EXPECT_EQ((size_t)3, memcpy_by_index_array_initialization_src_index(NULL, 0, 0x8c, 0x8d));
for (size_t i = 0; i < 65536; ++i) {
u16ref[i] = i;
}
memcpy_to_p24_from_i16((uint8_t*)u24ref, (int16_t*)u16ref, 65536);
// Test when src mask is 0. Everything copied is zero.
src_mask = 0;
dst_mask = 0x8d;
memset(u24ary, 0x99, 65536 * sizeof(u24ary[0]));
memcpy_by_channel_mask_src_index(u24ary, dst_mask, u24ref, src_mask, sizeof(u24ref[0]),
65536 / popcount(dst_mask));
memcpy_to_i16_from_p24((int16_t*)u16ary, (uint8_t*)u24ary, 65536);
EXPECT_EQ((size_t)0, nonZeroMono16((int16_t*)u16ary, 65530));
// Test when dst_mask is 0. Nothing should be copied.
src_mask = 0;
dst_mask = 0;
memset(u24ary, 0, 65536 * sizeof(u24ary[0]));
memcpy_by_channel_mask_src_index(u24ary, dst_mask, u24ref, src_mask, sizeof(u24ref[0]),
65536);
memcpy_to_i16_from_p24((int16_t*)u16ary, (uint8_t*)u24ary, 65536);
EXPECT_EQ((size_t)0, nonZeroMono16((int16_t*)u16ary, 65530));
// Test when source mask must copy to dst mask. One to one copy.
src_mask = 0xf;
dst_mask = 0xf;
memset(u24ary, 0x99, 65536 * sizeof(u24ary[0]));
memcpy_by_channel_mask_src_index(u24ary, dst_mask, u24ref, src_mask, sizeof(u24ref[0]), 555);
EXPECT_EQ(0, memcmp(u24ary, u24ref, 555 * sizeof(u24ref[0]) * popcount(dst_mask)));
// Test when source mask must copy to dst mask. One to one copy.
src_mask = 0xf;
dst_mask = 0x8d;
memset(u24ary, 0x99, 65536 * sizeof(u24ary[0]));
memcpy_by_channel_mask_src_index(u24ary, dst_mask, u24ref, src_mask, sizeof(u24ref[0]), 555);
EXPECT_EQ(0, memcmp(u24ary, u24ref, 555 * sizeof(u24ref[0]) * popcount(dst_mask)));
// Test with a gap in source:
// Input 3 samples, output 4 samples, one zero inserted.
src_mask = 0x07;
dst_mask = 0x8d;
memset(u24ary, 0x9, 65536 * sizeof(u24ary[0]));
memcpy_by_channel_mask_src_index(u24ary, dst_mask, u24ref, src_mask, sizeof(u24ref[0]),
65536 / popcount(dst_mask));
memcpy_to_i16_from_p24((int16_t*)u16ary, (uint8_t*)u24ary, 65536);
checkMonotoneOrZero(u16ary, 65536);
EXPECT_EQ((size_t)(65536 * 3 / 4 - 1), nonZeroMono16((int16_t*)u16ary, 65536));
// Test with a gap in destination:
// Input 4 samples, output 3 samples, one deleted
src_mask = 0x0f;
dst_mask = 0x8c;
memset(u24ary, 0x9, 65536 * sizeof(u24ary[0]));
memcpy_by_channel_mask_src_index(u24ary, dst_mask, u24ref, src_mask, sizeof(u24ref[0]),
65536 / popcount(src_mask));
memcpy_to_i16_from_p24((int16_t*)u16ary, (uint8_t*)u24ary, 65536);
checkMonotone(u16ary, 65536 * 3 / 4);
delete[] u16ref;
delete[] u16ary;
delete[] u24ref;
delete[] u24ary;
}
TEST(audio_utils_channels, adjust_channels) {
uint16_t *u16ref = new uint16_t[65536];
uint16_t *u16expand = new uint16_t[65536*2];
uint16_t *u16ary = new uint16_t[65536];
// reference buffer always increases
for (size_t i = 0; i < 65536; ++i) {
u16ref[i] = i;
}
// expand channels from stereo to quad.
adjust_channels(u16ref /*in_buff*/, 2 /*in_channels*/,
u16expand /*out_buff*/, 4 /*out_channels*/,
sizeof(u16ref[0]) /*sample_size_in_bytes*/,
sizeof(u16ref[0])*65536 /*num_in_bytes*/);
// expanded buffer must increase (or be zero)
checkMonotoneOrZero(u16expand, 65536*2);
// contract channels back to stereo.
adjust_channels(u16expand /*in_buff*/, 4 /*in_channels*/,
u16ary /*out_buff*/, 2 /*out_channels*/,
sizeof(u16expand[0]) /*sample_size_in_bytes*/,
sizeof(u16expand[0])*65536*2 /*num_in_bytes*/);
// must be identical to original.
EXPECT_EQ(0, memcmp(u16ary, u16ref, sizeof(u16ref[0])*65536));
delete[] u16ref;
delete[] u16expand;
delete[] u16ary;
}