Opened 4 years ago
Closed 4 years ago
#858 closed defect (fixed)
Missing close brace and conditions in palette_coding ()
| Reported by: | yhchao | Owned by: | |
|---|---|---|---|
| Priority: | minor | Milestone: | VVC D7 vC |
| Component: | spec | Version: | VVC D8 vB |
| Keywords: | Cc: | ksuehring, bbross, XiangLi, fbossen, jvet@… |
Description
- In the first while loop while( PaletteScanPos < maxSubPos ), the close brace is missing for the condition:
if( PaletteScanPos > 0 ) {
xcPrev = x0 + TraverseScanOrder[ log2CbWidth ][ log2CbHeight ][ PaletteScanPos − 1 ][ 0 ]
ycPrev = y0 + TraverseScanOrder[ log2CbWidth ][ log2CbHeight ][ PaletteScanPos − 1 ][ 1 ]
It should be:
if( PaletteScanPos > 0 ) {
xcPrev = x0 + TraverseScanOrder[ log2CbWidth ][ log2CbHeight ][ PaletteScanPos − 1 ][ 0 ]
ycPrev = y0 + TraverseScanOrder[ log2CbWidth ][ log2CbHeight ][ PaletteScanPos − 1 ][ 1 ]
}
- In the condition of copy_above_palette_indices_flag parsing:
if( MaxPaletteIndex > 0 && RunCopyMap[ xC ][ yC ] ) {
if( ( ( !palette_transpose_flag && yC > 0 ) | | ( palette_transpose_flag && xC > 0 ) ) && CopyAboveIndicesFlag[ xcPrev ][ ycPrev ] = = 0 ) {
copy_above_palette_indices_flag
CopyAboveIndicesFlag[ xC ][ yC ] = copy_above_palette_indices_flag
}
PreviousRunType = CopyAboveIndicesFlag[ xC ][ yC ]
PreviousRunPosition = PaletteScanPos
} else
CopyAboveIndicesFlag[ xC ][ yC ] = CopyAboveIndicesFlag[ xcPrev ][ ycPrev ]
Should add two condition PaletteScanPos > 0 as follows:
if( MaxPaletteIndex > 0 && RunCopyMap[ xC ][ yC ] ) {
if( ( ( !palette_transpose_flag && yC > 0 ) | | ( palette_transpose_flag && xC > 0 ) ) && ( CopyAboveIndicesFlag[ xcPrev ][ ycPrev ] = = 0 && PaletteScanPos > 0 ) ) {
copy_above_palette_indices_flag
CopyAboveIndicesFlag[ xC ][ yC ] = copy_above_palette_indices_flag
}
PreviousRunType = CopyAboveIndicesFlag[ xC ][ yC ]
PreviousRunPosition = PaletteScanPos
} elseif ( PaletteScanPos > 0 )
CopyAboveIndicesFlag[ xC ][ yC ] = CopyAboveIndicesFlag[ xcPrev ][ ycPrev ]
, since the variables xcPrev and ycPrev are not defined if PaletteScanPos = = 0.
Change history (1)
comment:1 Changed 4 years ago by bbross
- Resolution set to fixed
- Status changed from new to closed
Good catch, thanks!
This will be fixed in first verison of D10.