diff options
Diffstat (limited to 'doc/snow.txt')
| -rw-r--r-- | doc/snow.txt | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/doc/snow.txt b/doc/snow.txt index bbf28bc6c2..b4098fd64d 100644 --- a/doc/snow.txt +++ b/doc/snow.txt @@ -172,7 +172,7 @@ spatial_decomposition_count FIXME colorspace_type - 0 unspecified YcbCr + 0 unspecified YCbCr 1 Gray 2 Gray + Alpha 3 GBR @@ -235,7 +235,7 @@ spatial_decomposition_type stored as delta from last, last is reset to 0 if always_reset || keyframe qlog - quality (logarthmic quantizer scale) + quality (logarithmic quantizer scale) stored as delta from last, last is reset to 0 if always_reset || keyframe mv_scale @@ -251,11 +251,11 @@ block_max_depth stored as delta from last, last is reset to 0 if always_reset || keyframe quant_table - quantiztation table + quantization table Highlevel bitstream structure: -============================= +============================== -------------------------------------------- | Header | -------------------------------------------- @@ -303,7 +303,7 @@ Decoding process: | Intra DC | | | | LL0 subband prediction ------------ | - \ Dequantizaton + \ Dequantization ------------------- \ | | Reference frames | \ IDWT | ------- ------- | Motion \ | @@ -390,8 +390,8 @@ motion vector prediction (mvx_diff, mvy_diff)*mv_scale -Intra DC Predicton: -====================== +Intra DC Prediction: +==================== the luma and chroma values of the left block are used as predictors the used luma and chroma is the sum of the predictor and y_diff, cb_diff, cr_diff @@ -407,7 +407,7 @@ Motion Compensation: Halfpel interpolation: ---------------------- -halfpel interpolation is done by convolution with the halfpel filter stored +Halfpel interpolation is done by convolution with the halfpel filter stored in the header: horizontal halfpel samples are found by @@ -463,8 +463,8 @@ to the closest available fullpel sample Smaller pel interpolation: -------------------------- if diag_mc is set then points which lie on a line between 2 vertically, -horiziontally or diagonally adjacent halfpel points shall be interpolated -linearls with rounding to nearest and halfway values rounded up. +horizontally or diagonally adjacent halfpel points shall be interpolated +linearly with rounding to nearest and halfway values rounded up. points which lie on 2 diagonals at the same time should only use the one diagonal not containing the fullpel point @@ -519,8 +519,8 @@ width,height here are the width and height of the LL0 subband not of the final video -Dequantizaton: -============== +Dequantization: +=============== FIXME Wavelet Transform: |