RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-28 15:27:34 +00:00
Code Issues Activity Actions

LibVideo/VP9: Begin creating a tree parser to parse syntax elements

Browse source
This commit is contained in:
FalseHonesty 2021-01-30 15:18:59 -05:00 • committed by Andreas Kling
parent cfd65eafa9
commit 7ff6315246
7 changed files with 457 additions and 20 deletions
Download patch file Download diff file Expand all files Collapse all files

90
Userland/Libraries/LibVideo/VP9/LookupTables.h
View file

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