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LibVideo/VP9: Begin creating a tree parser to parse syntax elements
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cfd65eafa9
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7 changed files with 457 additions and 20 deletions
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@ -12,7 +12,7 @@
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namespace Video::VP9 {
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static constexpr InterpolationFilter literal_to_type[4] = { EightTapSmooth, EightTap, EightTapSharp, Bilinear };
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static constexpr TXSize tx_mode_to_biggest_tx_size[TX_MODES] = { TX4x4, TX8x8, TX16x16, TX32x32, TX32x32 };
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static constexpr TXSize tx_mode_to_biggest_tx_size[TX_MODES] = { TX_4x4, TX_8x8, TX_16x16, TX_32x32, TX_32x32 };
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static constexpr u8 segmentation_feature_bits[SEG_LVL_MAX] = { 8, 6, 2, 0 };
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static constexpr bool segmentation_feature_signed[SEG_LVL_MAX] = { true, true, false, false };
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static constexpr u8 inv_map_table[MAX_PROB] = {
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@ -30,7 +30,6 @@ static constexpr u8 inv_map_table[MAX_PROB] = {
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226, 227, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 242, 243, 244, 245, 246,
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247, 248, 249, 250, 251, 252, 253, 253
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};
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static constexpr u8 num_8x8_blocks_wide_lookup[BLOCK_SIZES] = { 1, 1, 1, 1, 1, 2, 2, 2, 4, 4, 4, 8, 8 };
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static constexpr BlockSubsize subsize_lookup[PARTITION_TYPES][BLOCK_SIZES] = {
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{
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// PARTITION_NONE
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@ -98,4 +97,91 @@ static constexpr BlockSubsize subsize_lookup[PARTITION_TYPES][BLOCK_SIZES] = {
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}
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};
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static constexpr int partition_tree[6] = {
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-PartitionNone, 2,
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-PartitionHorizontal, 4,
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-PartitionVertical, -PartitionSplit
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};
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static constexpr int cols_partition_tree[2] = { -PartitionHorizontal, -PartitionSplit };
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static constexpr int rows_partition_tree[2] = { -PartitionVertical, -PartitionSplit };
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static constexpr int intra_mode_tree[18] = {
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-DcPred, 2,
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-TmPred, 4,
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-VPred, 6,
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8, 12,
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-HPred, 10,
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-D135Pred, -D117Pred,
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-D45Pred, 14,
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-D63Pred, 16,
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-D153Pred, -D207Pred
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};
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static constexpr int segment_tree[14] = {
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2, 4, 6, 8, 10, 12,
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0, -1, -2, -3, -4, -5, -6, -7
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};
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static constexpr int binary_tree[2] = { 0, -1 };
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static constexpr int tx_size_32_tree[6] = {
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-TX_4x4, 2,
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-TX_8x8, 4,
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-TX_16x16, -TX_32x32
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};
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static constexpr int tx_size_16_tree[4] = {
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-TX_4x4, 2,
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-TX_8x8, -TX_16x16
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};
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static constexpr int tx_size_8_tree[2] = { -TX_4x4, -TX_8x8 };
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static constexpr int inter_mode_tree[6] = {
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-(ZeroMv - NearestMv), 2,
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-(NearestMv - NearestMv), 4,
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-(NearMv - NearestMv), -(NewMv - NearestMv)
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};
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static constexpr int interp_filter_tree[4] = {
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-EightTap, 2,
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-EightTapSmooth, -EightTapSharp
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};
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static constexpr int mv_joint_tree[6] = {
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-MvJointZero, 2,
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-MvJointHnzvz, 4,
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-MvJointHzvnz, -MvJointHnzvnz
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};
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static constexpr int mv_class_tree[20] = {
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-MvClass0, 2,
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-MvClass1, 4,
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6, 8,
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-MvClass2, -MvClass3,
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10, 12,
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-MvClass4, -MvClass5,
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-MvClass6, 14,
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16, 18,
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-MvClass7, -MvClass8,
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-MvClass9, -MvClass10
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};
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static constexpr int mv_fr_tree[6] = {
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-0, 2,
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-1, 4,
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-2, -3
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};
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static constexpr int token_tree[20] = {
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-ZeroToken, 2,
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-OneToken, 4,
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6, 10,
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-TwoToken, 8,
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-ThreeToken, -FourToken,
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12, 14,
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-DctValCat1, -DctValCat2,
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16, 18,
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-DctValCat3, -DctValCat4,
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-DctValCat5, -DctValCat6
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};
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static constexpr u8 b_width_log2_lookup[BLOCK_SIZES] = { 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4 };
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static constexpr u8 b_height_log2_lookup[BLOCK_SIZES] = { 0, 1, 0, 1, 2, 1, 2, 3, 2, 3, 4, 3, 4 };
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static constexpr u8 num_4x4_blocks_wide_lookup[BLOCK_SIZES] = { 1, 1, 2, 2, 2, 4, 4, 4, 8, 8, 8, 16, 16 };
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static constexpr u8 num_4x4_blocks_high_lookup[BLOCK_SIZES] = { 1, 2, 1, 2, 4, 2, 4, 8, 4, 8, 16, 8, 16 };
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static constexpr u8 mi_width_log2_lookup[BLOCK_SIZES] = { 0, 0, 0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3 };
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static constexpr u8 num_8x8_blocks_wide_lookup[BLOCK_SIZES] = { 1, 1, 1, 1, 1, 2, 2, 2, 4, 4, 4, 8, 8 };
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static constexpr u8 mi_height_log2_lookup[BLOCK_SIZES] = { 0, 0, 0, 0, 1, 0, 1, 2, 1, 2, 3, 2, 3 };
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static constexpr u8 num_8x8_blocks_high_lookup[BLOCK_SIZES] = { 1, 1, 1, 1, 2, 1, 2, 4, 2, 4, 8, 4, 8 };
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static constexpr u8 size_group_lookup[BLOCK_SIZES] = { 0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3, 3 };
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}
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