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Diffstat (limited to 'src/symbol_decoder_context_test.cc')
| -rw-r--r-- | src/symbol_decoder_context_test.cc | 264 |
1 files changed, 264 insertions, 0 deletions
diff --git a/src/symbol_decoder_context_test.cc b/src/symbol_decoder_context_test.cc new file mode 100644 index 0000000..4a0de86 --- /dev/null +++ b/src/symbol_decoder_context_test.cc @@ -0,0 +1,264 @@ +// Copyright 2021 The libgav1 Authors +// +// 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. + +#include "src/symbol_decoder_context.h" + +#include <cstdint> +#include <cstring> + +#include "gtest/gtest.h" +#include "src/utils/constants.h" + +namespace libgav1 { +namespace { + +TEST(SymbolDecoderContextTest, ResetIntraFrameYModeCdf) { + // Note these are zero-initialized separately to avoid differences in padding + // values added to tables for alignment purposes when comparing the contexts + // with memcmp(). + libgav1::SymbolDecoderContext gold_context = {}; + libgav1::SymbolDecoderContext context = {}; + gold_context.Initialize(0); + context.Initialize(0); + EXPECT_EQ(memcmp(&gold_context, &context, sizeof(gold_context)), 0); + EXPECT_EQ(context.intra_frame_y_mode_cdf[0][0][0], 32768 - 15588); + EXPECT_EQ(context.intra_frame_y_mode_cdf[0][0][1], 32768 - 17027); + ++context.intra_frame_y_mode_cdf[0][0][0]; + --context.intra_frame_y_mode_cdf[0][0][1]; + EXPECT_NE(memcmp(&gold_context, &context, sizeof(gold_context)), 0); + context.ResetIntraFrameYModeCdf(); + EXPECT_EQ(memcmp(&gold_context, &context, sizeof(gold_context)), 0); +} + +void ResetAndVerifyCounters(libgav1::SymbolDecoderContext* const context) { + libgav1::SymbolDecoderContext gold_context = {}; + gold_context.Initialize(0); + EXPECT_NE(memcmp(&gold_context, context, sizeof(gold_context)), 0); + context->ResetCounters(); + EXPECT_EQ(memcmp(&gold_context, context, sizeof(gold_context)), 0); +} + +TEST(SymbolDecoderContextTest, ResetCounters1d) { + libgav1::SymbolDecoderContext context = {}; + context.Initialize(0); + int value = 0; + context.delta_q_cdf[libgav1::kDeltaSymbolCount] = ++value; + context.delta_lf_cdf[libgav1::kDeltaSymbolCount] = ++value; + context.intra_block_copy_cdf[libgav1::kBooleanSymbolCount] = ++value; + context.cfl_alpha_signs_cdf[libgav1::kCflAlphaSignsSymbolCount] = ++value; + context.filter_intra_mode_cdf[libgav1::kNumFilterIntraPredictors] = ++value; + context.restoration_type_cdf[libgav1::kRestorationTypeSymbolCount] = ++value; + context.use_wiener_cdf[libgav1::kBooleanSymbolCount] = ++value; + context.use_sgrproj_cdf[libgav1::kBooleanSymbolCount] = ++value; + ResetAndVerifyCounters(&context); +} + +void IncreasePartitionCounters(SymbolDecoderContext* symbol_context, + int value) { + const int min_bsize_log2 = k4x4WidthLog2[kBlock8x8]; + const int max_bsize_log2 = k4x4WidthLog2[kBlock128x128]; + for (int block_size_log2 = min_bsize_log2; block_size_log2 <= max_bsize_log2; + ++block_size_log2) { + for (int context = 0; context < kPartitionContexts; ++context) { + const int cdf_size = + SymbolDecoderContext::PartitionCdfSize(block_size_log2); + symbol_context->partition_cdf[block_size_log2 - min_bsize_log2][context] + [cdf_size] += value; + } + } +} + +void IncreasePaletteColorIndexCounters(SymbolDecoderContext* symbol_context, + int value) { + for (auto& palette_color_index_cdf_plane : + symbol_context->palette_color_index_cdf) { + for (int symbol_count = 0; symbol_count < kPaletteSizeSymbolCount; + ++symbol_count) { + const int cdf_size = symbol_count + kMinPaletteSize; + for (int context = 0; context < kPaletteColorIndexContexts; ++context) { + palette_color_index_cdf_plane[symbol_count][context][cdf_size] += value; + } + } + } +} + +void IncreaseTxTypeCounters(SymbolDecoderContext* context, int value) { + for (int set_idx = kTransformSetIntra1; set_idx <= kTransformSetIntra2; + ++set_idx) { + auto tx_set = static_cast<TransformSet>(set_idx); + for (int tx_size = 0; tx_size < kNumExtendedTransformSizes; ++tx_size) { + for (int mode = 0; mode < kIntraPredictionModesY; ++mode) { + context->intra_tx_type_cdf[SymbolDecoderContext::TxTypeIndex( + tx_set)][tx_size][mode][kNumTransformTypesInSet[tx_set]] += value; + } + } + } + + for (int set_idx = kTransformSetInter1; set_idx <= kTransformSetInter3; + ++set_idx) { + auto tx_set = static_cast<TransformSet>(set_idx); + for (int tx_size = 0; tx_size < kNumExtendedTransformSizes; ++tx_size) { + context->inter_tx_type_cdf[SymbolDecoderContext::TxTypeIndex(tx_set)] + [tx_size][kNumTransformTypesInSet[tx_set]] += + value; + } + } +} + +void IncreaseTxDepthCounters(SymbolDecoderContext* symbol_context, int value) { + for (int context = 0; context < kTxDepthContexts; ++context) { + symbol_context->tx_depth_cdf[0][context][kMaxTxDepthSymbolCount - 1] += + value; + } + + for (int plane_category = 1; plane_category < 4; ++plane_category) { + for (int context = 0; context < kTxDepthContexts; ++context) { + symbol_context + ->tx_depth_cdf[plane_category][context][kMaxTxDepthSymbolCount] += + value; + } + } +} + +void IncreaseUVModeCounters(SymbolDecoderContext* symbol_context, int value) { + for (int cfl_allowed = 0; cfl_allowed < kBooleanSymbolCount; ++cfl_allowed) { + for (int mode = 0; mode < kIntraPredictionModesY; ++mode) { + symbol_context->uv_mode_cdf[cfl_allowed][mode][kIntraPredictionModesUV - + (1 - cfl_allowed)] += + value; + } + } +} + +#define ASSIGN_COUNTER_2D(array, offset) \ + do { \ + for (auto& d1 : context.array) { \ + d1[libgav1::offset] = ++value; \ + } \ + } while (false) + +TEST(SymbolDecoderContextTest, ResetCounters2d) { + libgav1::SymbolDecoderContext context = {}; + context.Initialize(0); + int value = 0; + ASSIGN_COUNTER_2D(segment_id_cdf, kMaxSegments); + ASSIGN_COUNTER_2D(use_predicted_segment_id_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_2D(skip_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_2D(skip_mode_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_2D(delta_lf_multi_cdf, kDeltaSymbolCount); + ASSIGN_COUNTER_2D(y_mode_cdf, kIntraPredictionModesY); + ASSIGN_COUNTER_2D(angle_delta_cdf, kAngleDeltaSymbolCount); + ASSIGN_COUNTER_2D(cfl_alpha_cdf, kCflAlphaSymbolCount); + ASSIGN_COUNTER_2D(use_filter_intra_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_2D(tx_split_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_2D(eob_pt_512_cdf, kEobPt512SymbolCount); + ASSIGN_COUNTER_2D(eob_pt_1024_cdf, kEobPt1024SymbolCount); + ASSIGN_COUNTER_2D(palette_y_size_cdf, kPaletteSizeSymbolCount); + ASSIGN_COUNTER_2D(has_palette_uv_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_2D(palette_uv_size_cdf, kPaletteSizeSymbolCount); + ASSIGN_COUNTER_2D(is_inter_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_2D(use_compound_reference_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_2D(compound_reference_type_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_2D(compound_prediction_mode_cdf, + kNumCompoundInterPredictionModes); + ASSIGN_COUNTER_2D(new_mv_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_2D(zero_mv_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_2D(reference_mv_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_2D(ref_mv_index_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_2D(is_inter_intra_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_2D(inter_intra_mode_cdf, kNumInterIntraModes); + ASSIGN_COUNTER_2D(is_wedge_inter_intra_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_2D(wedge_index_cdf, kWedgeIndexSymbolCount); + ASSIGN_COUNTER_2D(use_obmc_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_2D(motion_mode_cdf, kNumMotionModes); + ASSIGN_COUNTER_2D(is_explicit_compound_type_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_2D(is_compound_type_average_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_2D(compound_type_cdf, kNumExplicitCompoundPredictionTypes); + ASSIGN_COUNTER_2D(interpolation_filter_cdf, kNumExplicitInterpolationFilters); + ASSIGN_COUNTER_2D(mv_joint_cdf, kNumMvJointTypes); + ResetAndVerifyCounters(&context); +} + +#undef ASSIGN_COUNTER_2D + +#define ASSIGN_COUNTER_3D(array, offset) \ + do { \ + for (auto& d1 : context.array) { \ + for (auto& d2 : d1) { \ + d2[libgav1::offset] = ++value; \ + } \ + } \ + } while (false) + +TEST(SymbolDecoderContextTest, ResetCounters3d) { + libgav1::SymbolDecoderContext context = {}; + context.Initialize(0); + int value = 0; + ASSIGN_COUNTER_3D(intra_frame_y_mode_cdf, kIntraPredictionModesY); + ASSIGN_COUNTER_3D(all_zero_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_3D(eob_pt_16_cdf, kEobPt16SymbolCount); + ASSIGN_COUNTER_3D(eob_pt_32_cdf, kEobPt32SymbolCount); + ASSIGN_COUNTER_3D(eob_pt_64_cdf, kEobPt64SymbolCount); + ASSIGN_COUNTER_3D(eob_pt_128_cdf, kEobPt128SymbolCount); + ASSIGN_COUNTER_3D(eob_pt_256_cdf, kEobPt256SymbolCount); + ASSIGN_COUNTER_3D(dc_sign_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_3D(has_palette_y_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_3D(compound_backward_reference_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_3D(single_reference_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_3D(mv_sign_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_3D(mv_class_cdf, kMvClassSymbolCount); + ASSIGN_COUNTER_3D(mv_class0_bit_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_3D(mv_class0_high_precision_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_3D(mv_fraction_cdf, kMvFractionSymbolCount); + ASSIGN_COUNTER_3D(mv_high_precision_cdf, kBooleanSymbolCount); + IncreasePartitionCounters(&context, value); + IncreaseTxTypeCounters(&context, value); + IncreaseTxDepthCounters(&context, value); + IncreaseUVModeCounters(&context, value); + ResetAndVerifyCounters(&context); +} + +#undef ASSIGN_COUNTER_3D + +#define ASSIGN_COUNTER_4D(array, offset) \ + do { \ + for (auto& d1 : context.array) { \ + for (auto& d2 : d1) { \ + for (auto& d3 : d2) { \ + d3[libgav1::offset] = ++value; \ + } \ + } \ + } \ + } while (false) + +TEST(SymbolDecoderContextTest, ResetCounters4d) { + libgav1::SymbolDecoderContext context = {}; + context.Initialize(0); + int value = 0; + ASSIGN_COUNTER_4D(eob_extra_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_4D(coeff_base_eob_cdf, kCoeffBaseEobSymbolCount); + ASSIGN_COUNTER_4D(coeff_base_cdf, kCoeffBaseSymbolCount); + ASSIGN_COUNTER_4D(coeff_base_range_cdf, kCoeffBaseRangeSymbolCount); + ASSIGN_COUNTER_4D(compound_reference_cdf, kBooleanSymbolCount); + ASSIGN_COUNTER_4D(mv_class0_fraction_cdf, kMvFractionSymbolCount); + ASSIGN_COUNTER_4D(mv_bit_cdf, kBooleanSymbolCount); + IncreasePaletteColorIndexCounters(&context, value); + IncreaseTxTypeCounters(&context, value); + ResetAndVerifyCounters(&context); +} + +#undef ASSIGN_COUNTER_4D + +} // namespace +} // namespace libgav1 |