RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-27 01:37:36 +00:00
Code Issues Activity Actions

LibVideo/VP9: Move the transform mode field from Parser to FrameContext

Browse source
This commit is contained in:
Zaggy1024 2022-11-26 10:24:47 -06:00 • committed by Andreas Kling
parent 396972bb69
commit b966f9d811
4 changed files with 19 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

29
Userland/Libraries/LibVideo/VP9/Parser.cpp
View file

@ -542,10 +542,10 @@ void Parser::setup_past_independence()
DecoderErrorOr<void> Parser::compressed_header(FrameContext& frame_context)
{
TRY(read_tx_mode(frame_context));
if (m_tx_mode == TXModeSelect)
frame_context.transform_mode = TRY(read_tx_mode(frame_context));
if (frame_context.transform_mode == TXModeSelect)
TRY(tx_mode_probs());
TRY(read_coef_probs());
TRY(read_coef_probs(frame_context.transform_mode));
TRY(read_skip_prob());
if (frame_context.is_inter_predicted()) {
TRY(read_inter_mode_probs());
@ -561,17 +561,16 @@ DecoderErrorOr<void> Parser::compressed_header(FrameContext& frame_context)
return {};
}
DecoderErrorOr<void> Parser::read_tx_mode(FrameContext const& frame_context)
DecoderErrorOr<TXMode> Parser::read_tx_mode(FrameContext const& frame_context)
{
if (frame_context.is_lossless()) {
m_tx_mode = Only_4x4;
} else {
auto tx_mode = TRY_READ(m_bit_stream->read_literal(2));
if (tx_mode == Allow_32x32)
tx_mode += TRY_READ(m_bit_stream->read_literal(1));
m_tx_mode = static_cast<TXMode>(tx_mode);
return TXMode::Only_4x4;
}
return {};
auto tx_mode = TRY_READ(m_bit_stream->read_literal(2));
if (tx_mode == Allow_32x32)
tx_mode += TRY_READ(m_bit_stream->read_literal(1));
return static_cast<TXMode>(tx_mode);
}
DecoderErrorOr<void> Parser::tx_mode_probs()
@ -635,9 +634,9 @@ u8 Parser::inv_recenter_nonneg(u8 v, u8 m)
return m + (v >> 1u);
}
DecoderErrorOr<void> Parser::read_coef_probs()
DecoderErrorOr<void> Parser::read_coef_probs(TXMode transform_mode)
{
auto max_tx_size = tx_mode_to_biggest_tx_size[m_tx_mode];
auto max_tx_size = tx_mode_to_biggest_tx_size[transform_mode];
for (u8 tx_size = 0; tx_size <= max_tx_size; tx_size++) {
auto update_probs = TRY_READ(m_bit_stream->read_literal(1));
if (update_probs == 1) {
@ -1047,9 +1046,9 @@ bool Parser::seg_feature_active(BlockContext const& block_context, u8 feature)
DecoderErrorOr<TXSize> Parser::read_tx_size(BlockContext& block_context, FrameBlockContext above_context, FrameBlockContext left_context, bool allow_select)
{
auto max_tx_size = max_txsize_lookup[block_context.size];
if (allow_select && m_tx_mode == TXModeSelect && block_context.size >= Block_8x8)
if (allow_select && block_context.frame_context.transform_mode == TXModeSelect && block_context.size >= Block_8x8)
return (TRY_READ(TreeParser::parse_tx_size(*m_bit_stream, *m_probability_tables, *m_syntax_element_counter, max_tx_size, above_context, left_context)));
return min(max_tx_size, tx_mode_to_biggest_tx_size[m_tx_mode]);
return min(max_tx_size, tx_mode_to_biggest_tx_size[block_context.frame_context.transform_mode]);
}
DecoderErrorOr<void> Parser::inter_frame_mode_info(BlockContext& block_context, FrameBlockContext above_context, FrameBlockContext left_context)