mirror of
https://github.com/RGBCube/serenity
synced 2025-07-26 23:17:46 +00:00
LibVideo: Parameterize parsing the default UV prediction mode for VP9
This commit is contained in:
parent
c6ecad63d0
commit
1b66aa3cad
3 changed files with 15 additions and 9 deletions
|
@ -134,6 +134,19 @@ ErrorOr<PredictionMode> TreeParser::parse_default_intra_mode(BitStream& bit_stre
|
|||
return value;
|
||||
}
|
||||
|
||||
ErrorOr<PredictionMode> TreeParser::parse_default_uv_mode(BitStream& bit_stream, ProbabilityTables const& probability_table, PredictionMode y_mode)
|
||||
{
|
||||
// Tree
|
||||
TreeParser::TreeSelection tree = { intra_mode_tree };
|
||||
|
||||
// Probabilities
|
||||
u8 const* probabilities = probability_table.kf_uv_mode_prob()[to_underlying(y_mode)];
|
||||
|
||||
auto value = TRY(parse_tree_new<PredictionMode>(bit_stream, tree, [&](u8 node) { return probabilities[node]; }));
|
||||
// Default UV mode is not counted.
|
||||
return value;
|
||||
}
|
||||
|
||||
/*
|
||||
* Select a tree value based on the type of syntax element being parsed, as well as some parser state, as specified in section 9.3.1
|
||||
*/
|
||||
|
@ -195,8 +208,6 @@ TreeParser::TreeSelection TreeParser::select_tree(SyntaxElementType type)
|
|||
u8 TreeParser::select_tree_probability(SyntaxElementType type, u8 node)
|
||||
{
|
||||
switch (type) {
|
||||
case SyntaxElementType::DefaultUVMode:
|
||||
return calculate_default_uv_mode_probability(node);
|
||||
case SyntaxElementType::IntraMode:
|
||||
return calculate_intra_mode_probability(node);
|
||||
case SyntaxElementType::SubIntraMode:
|
||||
|
@ -268,11 +279,6 @@ u8 TreeParser::select_tree_probability(SyntaxElementType type, u8 node)
|
|||
#define ABOVE_SINGLE m_decoder.m_above_single
|
||||
#define LEFT_SINGLE m_decoder.m_left_single
|
||||
|
||||
u8 TreeParser::calculate_default_uv_mode_probability(u8 node)
|
||||
{
|
||||
return m_decoder.m_probability_tables->kf_uv_mode_prob()[to_underlying(m_decoder.m_y_mode)][node];
|
||||
}
|
||||
|
||||
u8 TreeParser::calculate_intra_mode_probability(u8 node)
|
||||
{
|
||||
m_ctx = size_group_lookup[m_decoder.m_mi_size];
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue