projects / nihav.git / blame
| Commit | Line | Data |
|---|---|---|
| 9a110b6c | 1 | use super::super::vp7data::DEFAULT_MV_PROBS; |
| c5d5793c KS |
2 | use super::super::vp78data::*; |
| 3 | pub use crate::codecs::vpenc::models::*; | |
| 4 | ||
| 5 | #[derive(Clone,Copy)] | |
| 6 | pub struct VP7Models { | |
| 7 | pub coef_probs: [[[[u8; 11]; 3]; 8]; 4], | |
| 8 | pub mv_probs: [[u8; 17]; 2], | |
| 9 | pub kf_ymode_prob: [u8; 4], | |
| 10 | pub kf_uvmode_prob: [u8; 3], | |
| 11 | pub prob_intra_pred: u8, | |
| 12 | pub prob_last_pred: u8, | |
| 13 | pub feature_present: [u8; 4], | |
| 14 | pub feature_tree_probs: [[u8; 3]; 4], | |
| 15 | } | |
| 16 | ||
| c5d5793c KS |
17 | impl VP7Models { |
| 18 | pub fn new() -> Self { | |
| 19 | let mut obj: Self = unsafe { std::mem::zeroed() }; | |
| 20 | obj.reset(); | |
| 21 | obj | |
| 22 | } | |
| 23 | pub fn reset(&mut self) { | |
| 24 | self.coef_probs.copy_from_slice(&DEFAULT_DCT_PROBS); | |
| 25 | self.mv_probs.copy_from_slice(&DEFAULT_MV_PROBS); | |
| 26 | self.kf_ymode_prob.copy_from_slice(Y_MODE_TREE_PROBS); | |
| 27 | self.kf_uvmode_prob.copy_from_slice(UV_MODE_TREE_PROBS); | |
| 28 | } | |
| 29 | } | |
| 30 | ||
| 31 | pub trait VP7ProbCounter { | |
| 32 | fn to_prob8(self) -> u8; | |
| 33 | fn to_prob8_worthy(&self, ref_prob: &mut u8); | |
| 34 | } | |
| 35 | ||
| 36 | impl VP7ProbCounter for ProbCounter { | |
| 37 | fn to_prob8(self) -> u8 { | |
| 38 | if self.total > 0 { | |
| 39 | ((self.zeroes << 8) / self.total).min(255).max(1) as u8 | |
| 40 | } else { | |
| 41 | 128 | |
| 42 | } | |
| 43 | } | |
| 44 | fn to_prob8_worthy(&self, ref_prob: &mut u8) { | |
| 45 | if self.total > 0 { | |
| 46 | let new_prob = self.to_prob(); | |
| 47 | let new_bits = Self::est_bits(new_prob, self.zeroes, self.total); | |
| 48 | let old_bits = Self::est_bits(*ref_prob, self.zeroes, self.total); | |
| 49 | ||
| 50 | if new_bits + 8 < old_bits { | |
| 51 | *ref_prob = new_prob; | |
| 52 | } | |
| 53 | } | |
| 54 | } | |
| 55 | } | |
| 56 | ||
| 57 | #[derive(Clone,Copy,Default)] | |
| 58 | pub struct VP7ModelsStat { | |
| 59 | pub coef_probs: [[[[ProbCounter; 11]; 3]; 8]; 4], | |
| 60 | pub mv_probs: [[ProbCounter; 17]; 2], | |
| 61 | pub kf_ymode_prob: [ProbCounter; 4], | |
| 62 | pub kf_uvmode_prob: [ProbCounter; 3], | |
| 63 | pub prob_intra_pred: ProbCounter, | |
| 64 | pub prob_last_pred: ProbCounter, | |
| 65 | pub feature_present: [ProbCounter; 4], | |
| 66 | pub feature_tree_probs: [[ProbCounter; 3]; 4], | |
| 67 | } | |
| 68 | ||
| 69 | impl VP7ModelsStat { | |
| 70 | pub fn new() -> Self { Self::default() } | |
| 71 | pub fn reset(&mut self) { | |
| 72 | *self = Self::default(); | |
| 73 | } | |
| 74 | pub fn generate(&self, dst: &mut VP7Models, is_intra: bool) { | |
| 75 | for (dst, src) in dst.feature_present.iter_mut().zip(self.feature_present.iter()) { | |
| 76 | *dst = src.to_prob8(); | |
| 77 | } | |
| 78 | for (dst, src) in dst.feature_tree_probs.iter_mut().zip(self.feature_tree_probs.iter()) { | |
| 79 | for (dst, src) in dst.iter_mut().zip(src.iter()) { | |
| 80 | if src.total != 0 { | |
| 81 | *dst = src.to_prob8(); | |
| 82 | } else { | |
| 83 | *dst = 255; | |
| 84 | } | |
| 85 | } | |
| 86 | } | |
| 87 | for (dst, src) in dst.coef_probs.iter_mut().zip(self.coef_probs.iter()) { | |
| 88 | for (dst, src) in dst.iter_mut().zip(src.iter()) { | |
| 89 | for (dst, src) in dst.iter_mut().zip(src.iter()) { | |
| 90 | for (dst, src) in dst.iter_mut().zip(src.iter()) { | |
| 91 | src.to_prob8_worthy(dst); | |
| 92 | } | |
| 93 | } | |
| 94 | } | |
| 95 | } | |
| 96 | ||
| 97 | if !is_intra { | |
| 98 | dst.prob_intra_pred = self.prob_intra_pred.to_prob8(); | |
| 99 | dst.prob_last_pred = self.prob_last_pred.to_prob8(); | |
| 100 | ||
| 101 | for (dmv, smv) in dst.mv_probs.iter_mut().zip(self.mv_probs.iter()) { | |
| 102 | for (dp, sp) in dmv.iter_mut().zip(smv.iter()) { | |
| 103 | *dp = sp.to_prob_worthy(*dp); | |
| 104 | } | |
| 105 | } | |
| 106 | ||
| 107 | for (dp, sp) in dst.kf_ymode_prob.iter_mut().zip(self.kf_ymode_prob.iter()) { | |
| 108 | sp.to_prob8_worthy(dp); | |
| 109 | } | |
| 110 | for (dp, sp) in dst.kf_uvmode_prob.iter_mut().zip(self.kf_uvmode_prob.iter()) { | |
| 111 | sp.to_prob8_worthy(dp); | |
| 112 | } | |
| 113 | } | |
| 114 | } | |
| 115 | } |