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-rw-r--r--third_party/aom/test/av1_inv_txfm1d_test.cc87
1 files changed, 87 insertions, 0 deletions
diff --git a/third_party/aom/test/av1_inv_txfm1d_test.cc b/third_party/aom/test/av1_inv_txfm1d_test.cc
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index 000000000..9cf33a2fd
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+++ b/third_party/aom/test/av1_inv_txfm1d_test.cc
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include "test/av1_txfm_test.h"
+#include "av1/common/av1_fwd_txfm1d.h"
+#include "av1/common/av1_inv_txfm1d.h"
+
+using libaom_test::ACMRandom;
+using libaom_test::input_base;
+
+namespace {
+const int txfm_type_num = 2;
+const int txfm_size_ls[5] = { 4, 8, 16, 32, 64 };
+
+const TxfmFunc fwd_txfm_func_ls[][2] = {
+ { av1_fdct4_new, av1_fadst4_new },
+ { av1_fdct8_new, av1_fadst8_new },
+ { av1_fdct16_new, av1_fadst16_new },
+ { av1_fdct32_new, av1_fadst32_new },
+#if CONFIG_TX64X64
+ { av1_fdct64_new, NULL },
+#endif
+};
+
+const TxfmFunc inv_txfm_func_ls[][2] = {
+ { av1_idct4_new, av1_iadst4_new },
+ { av1_idct8_new, av1_iadst8_new },
+ { av1_idct16_new, av1_iadst16_new },
+ { av1_idct32_new, av1_iadst32_new },
+#if CONFIG_TX64X64
+ { av1_idct64_new, NULL },
+#endif
+};
+
+// the maximum stage number of fwd/inv 1d dct/adst txfm is 12
+const int8_t cos_bit[12] = { 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14 };
+const int8_t range_bit[12] = { 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32 };
+
+#define ARRAY_SIZE(x) (int)(sizeof(x) / sizeof(x[0]))
+
+TEST(av1_inv_txfm1d, round_trip) {
+ ACMRandom rnd(ACMRandom::DeterministicSeed());
+ for (int si = 0; si < ARRAY_SIZE(fwd_txfm_func_ls); ++si) {
+ int txfm_size = txfm_size_ls[si];
+
+ for (int ti = 0; ti < txfm_type_num; ++ti) {
+ TxfmFunc fwd_txfm_func = fwd_txfm_func_ls[si][ti];
+ TxfmFunc inv_txfm_func = inv_txfm_func_ls[si][ti];
+ int max_error = 2;
+
+ if (!fwd_txfm_func) continue;
+
+ const int count_test_block = 5000;
+ for (int ci = 0; ci < count_test_block; ++ci) {
+ int32_t input[64];
+ int32_t output[64];
+ int32_t round_trip_output[64];
+
+ assert(txfm_size <= ARRAY_SIZE(input));
+
+ for (int ni = 0; ni < txfm_size; ++ni) {
+ input[ni] = rnd.Rand16() % input_base - rnd.Rand16() % input_base;
+ }
+
+ fwd_txfm_func(input, output, cos_bit, range_bit);
+ inv_txfm_func(output, round_trip_output, cos_bit, range_bit);
+
+ for (int ni = 0; ni < txfm_size; ++ni) {
+ int node_err =
+ abs(input[ni] - round_shift(round_trip_output[ni],
+ get_max_bit(txfm_size) - 1));
+ EXPECT_LE(node_err, max_error);
+ }
+ }
+ }
+ }
+}
+
+} // namespace