Merge "Enable 4x4 DCT/ADST transform unit test"
This commit is contained in:
Jingning Han
Gerrit Code Review
commit
4995dbc713
@ -13,178 +13,288 @@
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#include <string.h>
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#include "third_party/googletest/src/include/gtest/gtest.h"
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#include "test/acm_random.h"
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#include "test/clear_system_state.h"
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#include "test/register_state_check.h"
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#include "test/util.h"
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extern "C" {
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#include "vp9/common/vp9_entropy.h"
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#include "./vp9_rtcd.h"
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void vp9_idct4x4_16_add_c(const int16_t *input, uint8_t *output, int pitch);
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}
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#include "test/acm_random.h"
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#include "vpx/vpx_integer.h"
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#include "vpx_ports/mem.h"
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using libvpx_test::ACMRandom;
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namespace {
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void fdct4x4(int16_t *in, int16_t *out, uint8_t* /*dst*/,
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int stride, int /*tx_type*/) {
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const int kNumCoeffs = 16;
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typedef void (*fdct_t)(const int16_t *in, int16_t *out, int stride);
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typedef void (*idct_t)(const int16_t *in, uint8_t *out, int stride);
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typedef void (*fht_t) (const int16_t *in, int16_t *out, int stride,
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int tx_type);
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typedef void (*iht_t) (const int16_t *in, uint8_t *out, int stride,
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int tx_type);
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void fdct4x4_ref(const int16_t *in, int16_t *out, int stride, int tx_type) {
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vp9_fdct4x4_c(in, out, stride);
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}
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void idct4x4_add(int16_t* /*in*/, int16_t *out, uint8_t *dst,
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int stride, int /*tx_type*/) {
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vp9_idct4x4_16_add_c(out, dst, stride);
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}
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void fht4x4(int16_t *in, int16_t *out, uint8_t* /*dst*/,
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int stride, int tx_type) {
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void fht4x4_ref(const int16_t *in, int16_t *out, int stride, int tx_type) {
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vp9_short_fht4x4_c(in, out, stride, tx_type);
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}
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void iht4x4_add(int16_t* /*in*/, int16_t *out, uint8_t *dst,
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int stride, int tx_type) {
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vp9_iht4x4_16_add_c(out, dst, stride, tx_type);
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}
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class FwdTrans4x4Test : public ::testing::TestWithParam<int> {
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class Trans4x4TestBase {
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public:
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virtual ~FwdTrans4x4Test() {}
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virtual void SetUp() {
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tx_type_ = GetParam();
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if (tx_type_ == 0) {
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fwd_txfm_ = fdct4x4;
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inv_txfm_ = idct4x4_add;
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} else {
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fwd_txfm_ = fht4x4;
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inv_txfm_ = iht4x4_add;
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}
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}
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virtual ~Trans4x4TestBase() {}
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protected:
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void RunFwdTxfm(int16_t *in, int16_t *out, uint8_t *dst,
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int stride, int tx_type) {
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(*fwd_txfm_)(in, out, dst, stride, tx_type);
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virtual void RunFwdTxfm(const int16_t *in, int16_t *out, int stride) = 0;
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virtual void RunInvTxfm(const int16_t *out, uint8_t *dst, int stride) = 0;
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void RunAccuracyCheck() {
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ACMRandom rnd(ACMRandom::DeterministicSeed());
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uint32_t max_error = 0;
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int64_t total_error = 0;
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const int count_test_block = 10000;
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for (int i = 0; i < count_test_block; ++i) {
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DECLARE_ALIGNED_ARRAY(16, int16_t, test_input_block, kNumCoeffs);
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DECLARE_ALIGNED_ARRAY(16, int16_t, test_temp_block, kNumCoeffs);
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DECLARE_ALIGNED_ARRAY(16, uint8_t, dst, kNumCoeffs);
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DECLARE_ALIGNED_ARRAY(16, uint8_t, src, kNumCoeffs);
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// Initialize a test block with input range [-255, 255].
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for (int j = 0; j < kNumCoeffs; ++j) {
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src[j] = rnd.Rand8();
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dst[j] = rnd.Rand8();
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test_input_block[j] = src[j] - dst[j];
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}
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REGISTER_STATE_CHECK(RunFwdTxfm(test_input_block,
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test_temp_block, pitch_));
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REGISTER_STATE_CHECK(RunInvTxfm(test_temp_block, dst, pitch_));
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for (int j = 0; j < kNumCoeffs; ++j) {
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const uint32_t diff = dst[j] - src[j];
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const uint32_t error = diff * diff;
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if (max_error < error)
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max_error = error;
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total_error += error;
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}
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}
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EXPECT_GE(1u, max_error)
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<< "Error: 4x4 FHT/IHT has an individual round trip error > 1";
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EXPECT_GE(count_test_block , total_error)
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<< "Error: 4x4 FHT/IHT has average round trip error > 1 per block";
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}
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void RunInvTxfm(int16_t *in, int16_t *out, uint8_t *dst,
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int stride, int tx_type) {
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(*inv_txfm_)(in, out, dst, stride, tx_type);
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void RunCoeffCheck() {
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ACMRandom rnd(ACMRandom::DeterministicSeed());
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const int count_test_block = 5000;
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DECLARE_ALIGNED_ARRAY(16, int16_t, input_block, kNumCoeffs);
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DECLARE_ALIGNED_ARRAY(16, int16_t, output_ref_block, kNumCoeffs);
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DECLARE_ALIGNED_ARRAY(16, int16_t, output_block, kNumCoeffs);
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for (int i = 0; i < count_test_block; ++i) {
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// Initialize a test block with input range [-255, 255].
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for (int j = 0; j < kNumCoeffs; ++j)
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input_block[j] = rnd.Rand8() - rnd.Rand8();
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fwd_txfm_ref(input_block, output_ref_block, pitch_, tx_type_);
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REGISTER_STATE_CHECK(RunFwdTxfm(input_block, output_block, pitch_));
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// The minimum quant value is 4.
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for (int j = 0; j < kNumCoeffs; ++j)
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EXPECT_EQ(output_block[j], output_ref_block[j]);
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}
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}
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void RunMemCheck() {
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ACMRandom rnd(ACMRandom::DeterministicSeed());
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const int count_test_block = 5000;
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DECLARE_ALIGNED_ARRAY(16, int16_t, input_block, kNumCoeffs);
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DECLARE_ALIGNED_ARRAY(16, int16_t, input_extreme_block, kNumCoeffs);
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DECLARE_ALIGNED_ARRAY(16, int16_t, output_ref_block, kNumCoeffs);
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DECLARE_ALIGNED_ARRAY(16, int16_t, output_block, kNumCoeffs);
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for (int i = 0; i < count_test_block; ++i) {
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// Initialize a test block with input range [-255, 255].
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for (int j = 0; j < kNumCoeffs; ++j) {
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input_block[j] = rnd.Rand8() - rnd.Rand8();
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input_extreme_block[j] = rnd.Rand8() % 2 ? 255 : -255;
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}
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if (i == 0)
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for (int j = 0; j < kNumCoeffs; ++j)
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input_extreme_block[j] = 255;
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if (i == 1)
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for (int j = 0; j < kNumCoeffs; ++j)
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input_extreme_block[j] = -255;
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fwd_txfm_ref(input_extreme_block, output_ref_block, pitch_, tx_type_);
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REGISTER_STATE_CHECK(RunFwdTxfm(input_extreme_block,
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output_block, pitch_));
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// The minimum quant value is 4.
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for (int j = 0; j < kNumCoeffs; ++j) {
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EXPECT_EQ(output_block[j], output_ref_block[j]);
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EXPECT_GE(4 * DCT_MAX_VALUE, abs(output_block[j]))
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<< "Error: 16x16 FDCT has coefficient larger than 4*DCT_MAX_VALUE";
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}
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}
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}
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void RunInvAccuracyCheck() {
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ACMRandom rnd(ACMRandom::DeterministicSeed());
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const int count_test_block = 1000;
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DECLARE_ALIGNED_ARRAY(16, int16_t, in, kNumCoeffs);
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DECLARE_ALIGNED_ARRAY(16, int16_t, coeff, kNumCoeffs);
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DECLARE_ALIGNED_ARRAY(16, uint8_t, dst, kNumCoeffs);
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DECLARE_ALIGNED_ARRAY(16, uint8_t, src, kNumCoeffs);
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for (int i = 0; i < count_test_block; ++i) {
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// Initialize a test block with input range [-255, 255].
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for (int j = 0; j < kNumCoeffs; ++j) {
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src[j] = rnd.Rand8();
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dst[j] = rnd.Rand8();
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in[j] = src[j] - dst[j];
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}
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fwd_txfm_ref(in, coeff, pitch_, tx_type_);
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REGISTER_STATE_CHECK(RunInvTxfm(coeff, dst, pitch_));
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for (int j = 0; j < kNumCoeffs; ++j) {
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const uint32_t diff = dst[j] - src[j];
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const uint32_t error = diff * diff;
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EXPECT_GE(1u, error)
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<< "Error: 16x16 IDCT has error " << error
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<< " at index " << j;
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}
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}
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}
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int pitch_;
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int tx_type_;
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void (*fwd_txfm_)(int16_t *in, int16_t *out, uint8_t *dst,
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int stride, int tx_type);
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void (*inv_txfm_)(int16_t *in, int16_t *out, uint8_t *dst,
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int stride, int tx_type);
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fht_t fwd_txfm_ref;
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};
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TEST_P(FwdTrans4x4Test, SignBiasCheck) {
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ACMRandom rnd(ACMRandom::DeterministicSeed());
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DECLARE_ALIGNED_ARRAY(16, int16_t, test_input_block, 16);
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DECLARE_ALIGNED_ARRAY(16, int16_t, test_output_block, 16);
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const int pitch = 4;
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int count_sign_block[16][2];
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const int count_test_block = 1000000;
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class Trans4x4DCT
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: public Trans4x4TestBase,
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public PARAMS(fdct_t, idct_t, int) {
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public:
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virtual ~Trans4x4DCT() {}
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memset(count_sign_block, 0, sizeof(count_sign_block));
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for (int i = 0; i < count_test_block; ++i) {
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// Initialize a test block with input range [-255, 255].
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for (int j = 0; j < 16; ++j)
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test_input_block[j] = rnd.Rand8() - rnd.Rand8();
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virtual void SetUp() {
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fwd_txfm_ = GET_PARAM(0);
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inv_txfm_ = GET_PARAM(1);
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tx_type_ = GET_PARAM(2);
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pitch_ = 4;
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fwd_txfm_ref = fdct4x4_ref;
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}
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virtual void TearDown() { libvpx_test::ClearSystemState(); }
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RunFwdTxfm(test_input_block, test_output_block, NULL, pitch, tx_type_);
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for (int j = 0; j < 16; ++j) {
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if (test_output_block[j] < 0)
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++count_sign_block[j][0];
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else if (test_output_block[j] > 0)
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++count_sign_block[j][1];
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}
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protected:
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void RunFwdTxfm(const int16_t *in, int16_t *out, int stride) {
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fwd_txfm_(in, out, stride);
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}
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void RunInvTxfm(const int16_t *out, uint8_t *dst, int stride) {
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inv_txfm_(out, dst, stride);
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}
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for (int j = 0; j < 16; ++j) {
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const bool bias_acceptable = (abs(count_sign_block[j][0] -
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count_sign_block[j][1]) < 10000);
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EXPECT_TRUE(bias_acceptable)
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<< "Error: 4x4 FDCT/FHT has a sign bias > 1%"
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<< " for input range [-255, 255] at index " << j
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<< " tx_type " << tx_type_;
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}
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fdct_t fwd_txfm_;
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idct_t inv_txfm_;
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};
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memset(count_sign_block, 0, sizeof(count_sign_block));
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for (int i = 0; i < count_test_block; ++i) {
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// Initialize a test block with input range [-15, 15].
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for (int j = 0; j < 16; ++j)
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test_input_block[j] = (rnd.Rand8() >> 4) - (rnd.Rand8() >> 4);
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RunFwdTxfm(test_input_block, test_output_block, NULL, pitch, tx_type_);
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for (int j = 0; j < 16; ++j) {
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if (test_output_block[j] < 0)
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++count_sign_block[j][0];
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else if (test_output_block[j] > 0)
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++count_sign_block[j][1];
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}
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}
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for (int j = 0; j < 16; ++j) {
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const bool bias_acceptable = (abs(count_sign_block[j][0] -
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count_sign_block[j][1]) < 100000);
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EXPECT_TRUE(bias_acceptable)
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<< "Error: 4x4 FDCT/FHT has a sign bias > 10%"
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<< " for input range [-15, 15] at index " << j;
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}
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TEST_P(Trans4x4DCT, AccuracyCheck) {
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RunAccuracyCheck();
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}
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TEST_P(FwdTrans4x4Test, RoundTripErrorCheck) {
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ACMRandom rnd(ACMRandom::DeterministicSeed());
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int max_error = 0;
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int total_error = 0;
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const int count_test_block = 1000000;
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for (int i = 0; i < count_test_block; ++i) {
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DECLARE_ALIGNED_ARRAY(16, int16_t, test_input_block, 16);
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DECLARE_ALIGNED_ARRAY(16, int16_t, test_temp_block, 16);
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DECLARE_ALIGNED_ARRAY(16, uint8_t, dst, 16);
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DECLARE_ALIGNED_ARRAY(16, uint8_t, src, 16);
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for (int j = 0; j < 16; ++j) {
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src[j] = rnd.Rand8();
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dst[j] = rnd.Rand8();
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}
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// Initialize a test block with input range [-255, 255].
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for (int j = 0; j < 16; ++j)
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test_input_block[j] = src[j] - dst[j];
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const int pitch = 4;
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RunFwdTxfm(test_input_block, test_temp_block, dst, pitch, tx_type_);
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for (int j = 0; j < 16; ++j) {
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if (test_temp_block[j] > 0) {
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test_temp_block[j] += 2;
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test_temp_block[j] /= 4;
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test_temp_block[j] *= 4;
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} else {
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test_temp_block[j] -= 2;
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test_temp_block[j] /= 4;
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test_temp_block[j] *= 4;
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}
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}
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// inverse transform and reconstruct the pixel block
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RunInvTxfm(test_input_block, test_temp_block, dst, pitch, tx_type_);
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for (int j = 0; j < 16; ++j) {
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const int diff = dst[j] - src[j];
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const int error = diff * diff;
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if (max_error < error)
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max_error = error;
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total_error += error;
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}
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}
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EXPECT_GE(1, max_error)
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<< "Error: FDCT/IDCT or FHT/IHT has an individual roundtrip error > 1";
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EXPECT_GE(count_test_block, total_error)
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<< "Error: FDCT/IDCT or FHT/IHT has average "
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<< "roundtrip error > 1 per block";
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TEST_P(Trans4x4DCT, CoeffCheck) {
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RunCoeffCheck();
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}
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INSTANTIATE_TEST_CASE_P(VP9, FwdTrans4x4Test, ::testing::Range(0, 4));
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TEST_P(Trans4x4DCT, MemCheck) {
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RunMemCheck();
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}
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TEST_P(Trans4x4DCT, InvAccuracyCheck) {
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RunInvAccuracyCheck();
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}
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class Trans4x4HT
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: public Trans4x4TestBase,
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public PARAMS(fht_t, iht_t, int) {
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public:
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virtual ~Trans4x4HT() {}
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virtual void SetUp() {
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fwd_txfm_ = GET_PARAM(0);
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inv_txfm_ = GET_PARAM(1);
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tx_type_ = GET_PARAM(2);
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pitch_ = 4;
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fwd_txfm_ref = fht4x4_ref;
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}
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virtual void TearDown() { libvpx_test::ClearSystemState(); }
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protected:
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void RunFwdTxfm(const int16_t *in, int16_t *out, int stride) {
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fwd_txfm_(in, out, stride, tx_type_);
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}
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void RunInvTxfm(const int16_t *out, uint8_t *dst, int stride) {
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inv_txfm_(out, dst, stride, tx_type_);
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}
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fht_t fwd_txfm_;
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iht_t inv_txfm_;
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};
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TEST_P(Trans4x4HT, AccuracyCheck) {
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RunAccuracyCheck();
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}
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TEST_P(Trans4x4HT, CoeffCheck) {
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RunCoeffCheck();
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}
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TEST_P(Trans4x4HT, MemCheck) {
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RunMemCheck();
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}
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TEST_P(Trans4x4HT, InvAccuracyCheck) {
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RunInvAccuracyCheck();
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}
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using std::tr1::make_tuple;
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INSTANTIATE_TEST_CASE_P(
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C, Trans4x4DCT,
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::testing::Values(
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make_tuple(&vp9_fdct4x4_c, &vp9_idct4x4_16_add_c, 0)));
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INSTANTIATE_TEST_CASE_P(
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C, Trans4x4HT,
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::testing::Values(
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make_tuple(&vp9_short_fht4x4_c, &vp9_iht4x4_16_add_c, 0),
|
||||
make_tuple(&vp9_short_fht4x4_c, &vp9_iht4x4_16_add_c, 1),
|
||||
make_tuple(&vp9_short_fht4x4_c, &vp9_iht4x4_16_add_c, 2),
|
||||
make_tuple(&vp9_short_fht4x4_c, &vp9_iht4x4_16_add_c, 3)));
|
||||
|
||||
#if HAVE_SSE2
|
||||
INSTANTIATE_TEST_CASE_P(
|
||||
SSE2, Trans4x4DCT,
|
||||
::testing::Values(
|
||||
make_tuple(&vp9_fdct4x4_sse2,
|
||||
&vp9_idct4x4_16_add_sse2, 0)));
|
||||
INSTANTIATE_TEST_CASE_P(
|
||||
SSE2, Trans4x4HT,
|
||||
::testing::Values(
|
||||
make_tuple(&vp9_short_fht4x4_sse2, &vp9_iht4x4_16_add_sse2, 0),
|
||||
make_tuple(&vp9_short_fht4x4_sse2, &vp9_iht4x4_16_add_sse2, 1),
|
||||
make_tuple(&vp9_short_fht4x4_sse2, &vp9_iht4x4_16_add_sse2, 2),
|
||||
make_tuple(&vp9_short_fht4x4_sse2, &vp9_iht4x4_16_add_sse2, 3)));
|
||||
#endif
|
||||
|
||||
} // namespace
|
||||
|
||||
Loading…
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Reference in New Issue
Block a user