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LibVideo: Parameterize parsing single reference frame selection in VP9

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Zaggy1024 2022-11-07 03:09:25 -06:00 • committed by Andrew Kaster
parent 37fab851f1
commit 84f1aed40a
3 changed files with 160 additions and 153 deletions
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7
Userland/Libraries/LibVideo/VP9/Parser.cpp
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@ -1285,6 +1285,8 @@ DecoderErrorOr<void> Parser::read_ref_frames()
Optional<bool> left_intra = m_available_l ? m_left_intra : Optional<bool>();
Optional<ReferenceFrameType> above_ref_frame_0 = m_available_u ? m_above_ref_frame[0] : Optional<ReferenceFrameType>();
Optional<ReferenceFrameType> left_ref_frame_0 = m_available_l ? m_left_ref_frame[0] : Optional<ReferenceFrameType>();
Optional<ReferenceFramePair> above_ref_frame = m_available_u ? m_above_ref_frame : Optional<ReferenceFramePair>();
Optional<ReferenceFramePair> left_ref_frame = m_available_l ? m_left_ref_frame : Optional<ReferenceFramePair>();
if (m_reference_mode == ReferenceModeSelect) {
comp_mode = TRY_READ(TreeParser::parse_comp_mode(*m_bit_stream, *m_probability_tables, *m_syntax_element_counter, m_comp_fixed_ref, above_single, left_single, above_intra, left_intra, above_ref_frame_0, left_ref_frame_0));
} else {
@ -1303,9 +1305,10 @@ DecoderErrorOr<void> Parser::read_ref_frames()
m_ref_frame[inverse_biased_reference_index] = m_comp_var_ref[comp_ref];
return {};
}
auto single_ref_p1 = TRY_READ(m_tree_parser->parse_tree<bool>(SyntaxElementType::SingleRefP1));
// FIXME: Maybe consolidate this into a tree. Context is different between part 1 and 2 but still, it would look nice here.
auto single_ref_p1 = TRY_READ(TreeParser::parse_single_ref_part_1(*m_bit_stream, *m_probability_tables, *m_syntax_element_counter, above_single, left_single, above_intra, left_intra, above_ref_frame, left_ref_frame));
if (single_ref_p1) {
auto single_ref_p2 = TRY_READ(m_tree_parser->parse_tree<bool>(SyntaxElementType::SingleRefP2));
auto single_ref_p2 = TRY_READ(TreeParser::parse_single_ref_part_2(*m_bit_stream, *m_probability_tables, *m_syntax_element_counter, above_single, left_single, above_intra, left_intra, above_ref_frame, left_ref_frame));
m_ref_frame[0] = single_ref_p2 ? AltRefFrame : GoldenFrame;
} else {
m_ref_frame[0] = LastFrame;