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LibVideo/VP9: Begin decoding VP9 blocks

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FalseHonesty 2021-01-31 00:16:46 -05:00 • committed by Andreas Kling
parent 2ce4155b42
commit 375dbad144
4 changed files with 135 additions and 8 deletions
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17
Userland/Libraries/LibVideo/VP9/TreeParser.cpp
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@ -108,9 +108,9 @@ u8 TreeParser::select_tree_probability(SyntaxElementType type, u8 node)
case SyntaxElementType::UVMode:
break;
case SyntaxElementType::SegmentID:
break;
return m_segmentation_tree_probs[node];
case SyntaxElementType::Skip:
break;
return calculate_skip_probability();
case SyntaxElementType::SegIDPredicted:
break;
case SyntaxElementType::IsInter:
@ -182,6 +182,18 @@ u8 TreeParser::calculate_partition_probability(u8 node)
return m_probability_tables.partition_probs()[m_ctx][node2];
}
u8 TreeParser::calculate_skip_probability()
{
m_ctx = 0;
if (m_available_u) {
// FIXME: m_ctx += m_skips[m_mi_row - 1][m_mi_col];
}
if (m_available_l) {
// FIXME: m_ctx += m_skips[m_mi_row][m_mi_col - 1];
}
return m_probability_tables.skip_prob()[m_ctx];
}
void TreeParser::count_syntax_element(SyntaxElementType type, int value)
{
switch (type) {
@ -195,6 +207,7 @@ void TreeParser::count_syntax_element(SyntaxElementType type, int value)
case SyntaxElementType::UVMode:
break;
case SyntaxElementType::Skip:
m_syntax_element_counter->m_counts_skip[m_ctx][value]++;
break;
case SyntaxElementType::IsInter:
break;