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LibVideo/VP9: Start parsing residuals (6.4.21-6.4.23)

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Additionally, this uncovered a couple bugs with existing code,
so those have been fixed. Currently, parsing a whole video does
fail because we are now using a new calculation for frame width,
but it hasn't been fully implemented yet.
This commit is contained in:
FalseHonesty 2021-06-26 16:30:44 -04:00 • committed by Andreas Kling
parent cbff7c386a
commit 66628053d4
4 changed files with 131 additions and 8 deletions
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8
Userland/Libraries/LibVideo/VP9/TreeParser.cpp
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@ -207,17 +207,17 @@ u8 TreeParser::calculate_default_intra_mode_probability(u8 node)
{
u32 above_mode, left_mode;
if (m_decoder.m_mi_size >= Block_8x8) {
above_mode = AVAIL_U
above_mode = false // FIXME: AVAIL_U
? m_decoder.m_sub_modes[m_decoder.m_mi_row - 1][m_decoder.m_mi_col][2]
: DcPred;
left_mode = AVAIL_L
left_mode = false // FIXME: AVAIL_L
? m_decoder.m_sub_modes[m_decoder.m_mi_row][m_decoder.m_mi_col - 1][1]
: DcPred;
} else {
if (m_idy) {
above_mode = m_decoder.m_block_sub_modes[m_idx];
} else {
above_mode = AVAIL_U
above_mode = false // FIXME: AVAIL_U
? m_decoder.m_sub_modes[m_decoder.m_mi_row - 1][m_decoder.m_mi_col][2 + m_idx]
: DcPred;
}
@ -225,7 +225,7 @@ u8 TreeParser::calculate_default_intra_mode_probability(u8 node)
if (m_idx) {
left_mode = m_decoder.m_block_sub_modes[m_idy * 2];
} else {
left_mode = AVAIL_L
left_mode = false // FIXME: AVAIL_L
? m_decoder.m_sub_modes[m_decoder.m_mi_row][m_decoder.m_mi_col - 1][1 + m_idy * 2]
: DcPred;
}