--- /dev/null
+use nihav_core::frame::NASimpleVideoFrame;
+use super::types::SliceState;
+use super::dsp::*;
+
+const ALPHA: [i16; 52] = [
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 4, 4, 5, 6, 7, 8, 9, 10, 12, 13, 15, 17, 20, 22, 25, 28,
+ 32, 36, 40, 45, 50, 56, 63, 71, 80, 90, 100, 113, 127, 144, 162, 182,
+ 203, 226, 255, 255
+];
+const BETA: [i16; 52] = [
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 6, 6, 7, 7, 8, 8,
+ 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 15, 16, 16,
+ 17, 17, 18, 18
+];
+
+const TC0: [[u8; 3]; 52] = [
+ [ 0, 0, 0], [ 0, 0, 0], [ 0, 0, 0], [ 0, 0, 0],
+ [ 0, 0, 0], [ 0, 0, 0], [ 0, 0, 0], [ 0, 0, 0],
+ [ 0, 0, 0], [ 0, 0, 0], [ 0, 0, 0], [ 0, 0, 0],
+ [ 0, 0, 0], [ 0, 0, 0], [ 0, 0, 0], [ 0, 0, 0],
+ [ 0, 0, 0], [ 0, 0, 1], [ 0, 0, 1], [ 0, 0, 1],
+ [ 0, 0, 1], [ 0, 1, 1], [ 0, 1, 1], [ 1, 1, 1],
+ [ 1, 1, 1], [ 1, 1, 1], [ 1, 1, 1], [ 1, 1, 2],
+ [ 1, 1, 2], [ 1, 1, 2], [ 1, 1, 2], [ 1, 2, 3],
+ [ 1, 2, 3], [ 2, 2, 3], [ 2, 2, 4], [ 2, 3, 4],
+ [ 2, 3, 4], [ 3, 3, 5], [ 3, 4, 6], [ 3, 4, 6],
+ [ 4, 5, 7], [ 4, 5, 8], [ 4, 6, 9], [ 5, 7, 10],
+ [ 6, 8, 11], [ 6, 8, 13], [ 7, 10, 14], [ 8, 11, 16],
+ [ 9, 12, 18], [10, 13, 20], [11, 15, 23], [13, 17, 25]
+];
+
+fn get_lf_idx(qp0: u8, qp1: u8, off: i8) -> usize {
+ (i16::from((qp0 + qp1 + 1) >> 1) + i16::from(off)).max(0).min(51) as usize
+}
+
+fn filter_mb_row4_y(dst: &mut [u8], off: usize, stride: usize, dmodes: [u8; 4], quants: [u8; 3], alpha_off: i8, beta_off: i8) {
+ let q = quants[0];
+ let qleft = quants[1];
+ let dmode = dmodes[0] & 0xF;
+ if dmode != 0 {
+ let index_a_y = get_lf_idx(q, qleft, alpha_off);
+ let alpha_y = ALPHA[index_a_y];
+ let beta_y = BETA[get_lf_idx(q, qleft, beta_off)];
+ if dmode == 4 {
+ loop_filter_lumaedge_v(dst, off, stride, alpha_y, beta_y);
+ } else {
+ let tc0 = i16::from(TC0[index_a_y][(dmode - 1) as usize]);
+ loop_filter_lumanormal_v(dst, off, stride, alpha_y, beta_y, tc0);
+ }
+ }
+ let index_a_y = get_lf_idx(q, q, alpha_off);
+ let alpha_y = ALPHA[index_a_y];
+ let beta_y = BETA[get_lf_idx(q, q, beta_off)];
+
+ for i in 1..4 {
+ let dmode = dmodes[i] & 0xF;
+ if dmode != 0 {
+ let tc0 = i16::from(TC0[index_a_y][(dmode - 1) as usize]);
+ loop_filter_lumanormal_v(dst, off + i * 4, stride, alpha_y, beta_y, tc0);
+ }
+ }
+
+ let qtop = quants[2];
+ let index_a_y = get_lf_idx(q, qtop, alpha_off);
+ let alpha_y = ALPHA[index_a_y];
+ let beta_y = BETA[get_lf_idx(q, qtop, beta_off)];
+ for i in 0..4 {
+ let dmode = dmodes[i] >> 4;
+ if dmode == 4 {
+ loop_filter_lumaedge_h(dst, off + i * 4, stride, alpha_y, beta_y);
+ } else if dmode != 0 {
+ let tc0 = i16::from(TC0[index_a_y][(dmode - 1) as usize]);
+ loop_filter_lumanormal_h(dst, off + i * 4, stride, alpha_y, beta_y, tc0);
+ }
+ }
+}
+
+fn filter_mb_row4_c(dst: &mut [u8], off: usize, stride: usize, dmodes: [u8; 4], quants: [u8; 3], alpha_off: i8, beta_off: i8) {
+ let q = quants[0];
+ let qleft = quants[1];
+
+ let dmode = dmodes[0] & 0xF;
+ if dmode != 0 {
+ let index_a_c = get_lf_idx(q, qleft, alpha_off);
+ let alpha_c = ALPHA[index_a_c];
+ let beta_c = BETA[get_lf_idx(q, qleft, beta_off)];
+ if dmode == 4 {
+ loop_filter_chromaedge_v(dst, off, stride, alpha_c, beta_c);
+ } else {
+ let tc0 = i16::from(TC0[index_a_c][(dmode - 1) as usize]);
+ loop_filter_chromanormal_v(dst, off, stride, alpha_c, beta_c, tc0);
+ }
+ }
+ let dmode = dmodes[2] & 0xF;
+ if dmode != 0 {
+ let index_a_c = get_lf_idx(q, q, alpha_off);
+ let alpha_c = ALPHA[index_a_c];
+ let beta_c = BETA[get_lf_idx(q, q, beta_off)];
+ let tc0 = i16::from(TC0[index_a_c][(dmode - 1) as usize]);
+ loop_filter_chromanormal_v(dst, off + 4, stride, alpha_c, beta_c, tc0);
+ }
+
+ let qtop = quants[2];
+ let index_a_c = get_lf_idx(q, qtop, alpha_off);
+ let alpha_c = ALPHA[index_a_c];
+ let beta_c = BETA[get_lf_idx(q, qtop, beta_off)];
+ for i in 0..2 {
+ let dmode = dmodes[i * 2] >> 4;
+ if dmode == 4 {
+ loop_filter_chromaedge_h(dst, off + i * 4, stride, alpha_c, beta_c);
+ } else if dmode != 0 {
+ let tc0 = i16::from(TC0[index_a_c][(dmode - 1) as usize]);
+ loop_filter_chromanormal_h(dst, off + i * 4, stride, alpha_c, beta_c, tc0);
+ }
+ }
+}
+
+pub fn loop_filter_row(frm: &mut NASimpleVideoFrame<u8>, sstate: &SliceState, alpha_off: i8, beta_off: i8) {
+ let mut db_idx = sstate.deblock.xpos - sstate.deblock.stride;
+ let mut yoff = frm.offset[0] + sstate.mb_y * 16 * frm.stride[0];
+ let mut uoff = frm.offset[1] + sstate.mb_y * 8 * frm.stride[1];
+ let mut voff = frm.offset[2] + sstate.mb_y * 8 * frm.stride[2];
+ let mut tlq = [0; 3];
+ let mut lq = [0; 3];
+ let mut mb_idx = sstate.mb.xpos;
+ for _mb_x in 0..sstate.mb_w {
+ let mut tqy = sstate.mb.data[mb_idx - sstate.mb.stride].qp_y;
+ let tqu = sstate.mb.data[mb_idx - sstate.mb.stride].qp_u;
+ let tqv = sstate.mb.data[mb_idx - sstate.mb.stride].qp_v;
+ if sstate.mb_y > 0 {
+ let dmodes = [sstate.deblock.data[db_idx],
+ sstate.deblock.data[db_idx + 1],
+ sstate.deblock.data[db_idx + 2],
+ sstate.deblock.data[db_idx + 3]];
+
+ filter_mb_row4_y(frm.data, yoff - frm.stride[0] * 4, frm.stride[0], dmodes, [tqy, tlq[0], tqy], alpha_off, beta_off);
+ filter_mb_row4_c(frm.data, uoff - frm.stride[1] * 4, frm.stride[1], dmodes, [tqu, tlq[1], tqu], alpha_off, beta_off);
+ filter_mb_row4_c(frm.data, voff - frm.stride[2] * 4, frm.stride[2], dmodes, [tqv, tlq[2], tqv], alpha_off, beta_off);
+
+ tlq = [tqy, tqu, tqv];
+ }
+
+ let qy = sstate.mb.data[mb_idx].qp_y;
+ let qu = sstate.mb.data[mb_idx].qp_u;
+ let qv = sstate.mb.data[mb_idx].qp_v;
+
+ for y in 0..3 {
+ db_idx += sstate.deblock.stride;
+ let dmodes = [sstate.deblock.data[db_idx],
+ sstate.deblock.data[db_idx + 1],
+ sstate.deblock.data[db_idx + 2],
+ sstate.deblock.data[db_idx + 3]];
+
+ filter_mb_row4_y(frm.data, yoff + frm.stride[0] * 4 * y, frm.stride[0], dmodes, [qy, lq[0], tqy], alpha_off, beta_off);
+ if y == 0 {
+ filter_mb_row4_c(frm.data, uoff + frm.stride[1] * 2 * y, frm.stride[1], dmodes, [qu, lq[1], tqu], alpha_off, beta_off);
+ filter_mb_row4_c(frm.data, voff + frm.stride[2] * 2 * y, frm.stride[2], dmodes, [qv, lq[2], tqv], alpha_off, beta_off);
+ }
+ tqy = qy;
+ }
+ db_idx -= sstate.deblock.stride * 3;
+ lq = [qy, qu, qv];
+
+ mb_idx += 1;
+ db_idx += 4;
+ yoff += 16;
+ uoff += 8;
+ voff += 8;
+ }
+}
+pub fn loop_filter_last(frm: &mut NASimpleVideoFrame<u8>, sstate: &SliceState, alpha_off: i8, beta_off: i8) {
+ let mut db_idx = sstate.deblock.xpos + 3 * sstate.deblock.stride;
+ let mut yoff = frm.offset[0] + (sstate.mb_y * 16 + 12) * frm.stride[0];
+ let mut uoff = frm.offset[1] + (sstate.mb_y * 8 + 4) * frm.stride[1];
+ let mut voff = frm.offset[2] + (sstate.mb_y * 8 + 4) * frm.stride[2];
+
+ let mut lq = [0; 3];
+ let mut mb_idx = sstate.mb.xpos;
+ if sstate.mb_y != 0 && sstate.mb_x == 0 {
+ db_idx -= 4 * sstate.deblock.stride;
+ mb_idx -= sstate.mb.stride;
+ yoff -= 16 * frm.stride[0];
+ uoff -= 8 * frm.stride[1];
+ voff -= 8 * frm.stride[2];
+ }
+ for _mb_x in 0..sstate.mb_w {
+ let qy = sstate.mb.data[mb_idx].qp_y;
+ let qu = sstate.mb.data[mb_idx].qp_u;
+ let qv = sstate.mb.data[mb_idx].qp_v;
+
+ let dmodes = [sstate.deblock.data[db_idx],
+ sstate.deblock.data[db_idx + 1],
+ sstate.deblock.data[db_idx + 2],
+ sstate.deblock.data[db_idx + 3]];
+
+ filter_mb_row4_y(frm.data, yoff, frm.stride[0], dmodes, [qy, lq[0], qy], alpha_off, beta_off);
+ filter_mb_row4_c(frm.data, uoff, frm.stride[1], dmodes, [qu, lq[1], qu], alpha_off, beta_off);
+ filter_mb_row4_c(frm.data, voff, frm.stride[2], dmodes, [qv, lq[2], qv], alpha_off, beta_off);
+
+ lq = [qy, qu, qv];
+ mb_idx += 1;
+ db_idx += 4;
+ yoff += 16;
+ uoff += 8;
+ voff += 8;
+ }
+}
+
projects / nihav.git / blobdiff