+use frame::NAVideoBuffer;
+use super::{BlockDSP, CBPInfo, MV};
+use super::super::blockdsp;
//use super::h263data::*;
/*const W1: i32 = 22725;
pub const H263_INTERP_AVG_FUNCS: &[fn(&mut [u8], usize, &[u8], usize, usize, usize)] = &[
h263_interp00_avg, h263_interp01_avg, h263_interp10_avg, h263_interp11_avg ];
+
+pub struct H263BlockDSP { }
+
+impl H263BlockDSP {
+ pub fn new() -> Self {
+ H263BlockDSP { }
+ }
+}
+
+fn deblock_hor(buf: &mut NAVideoBuffer<u8>, comp: usize, q: u8, off: usize) {
+ let stride = buf.get_stride(comp);
+ let mut dptr = buf.get_data_mut();
+ let mut buf = dptr.as_mut_slice();
+ for x in 0..8 {
+ let a = buf[off - 2 * stride + x] as i16;
+ let b = buf[off - 1 * stride + x] as i16;
+ let c = buf[off + 0 * stride + x] as i16;
+ let d = buf[off + 1 * stride + x] as i16;
+ let diff = ((a - d) * 3 + (c - b) * 8) >> 4;
+ if (diff != 0) && (diff >= -32) && (diff < 32) {
+ let d0 = diff.abs() * 2 - (q as i16);
+ let d1 = if d0 < 0 { 0 } else { d0 };
+ let d2 = diff.abs() - d1;
+ let d3 = if d2 < 0 { 0 } else { d2 };
+
+ let delta = if diff < 0 { -d3 } else { d3 };
+
+ let b1 = b + delta;
+ if b1 < 0 { buf[off - 1 * stride + x] = 0; }
+ else if b1 > 255 { buf[off - 1 * stride + x] = 0xFF; }
+ else { buf[off - 1 * stride + x] = b1 as u8; }
+ let c1 = c - delta;
+ if c1 < 0 { buf[off + x] = 0; }
+ else if c1 > 255 { buf[off + x] = 0xFF; }
+ else { buf[off + x] = c1 as u8; }
+ }
+ }
+}
+
+fn deblock_ver(buf: &mut NAVideoBuffer<u8>, comp: usize, q: u8, off: usize) {
+ let stride = buf.get_stride(comp);
+ let mut dptr = buf.get_data_mut();
+ let mut buf = dptr.as_mut_slice();
+ for y in 0..8 {
+ let a = buf[off - 2 + y * stride] as i16;
+ let b = buf[off - 1 + y * stride] as i16;
+ let c = buf[off + 0 + y * stride] as i16;
+ let d = buf[off + 1 + y * stride] as i16;
+ let diff = ((a - d) * 3 + (c - b) * 8) >> 4;
+ if (diff != 0) && (diff >= -32) && (diff < 32) {
+ let d0 = diff.abs() * 2 - (q as i16);
+ let d1 = if d0 < 0 { 0 } else { d0 };
+ let d2 = diff.abs() - d1;
+ let d3 = if d2 < 0 { 0 } else { d2 };
+
+ let delta = if diff < 0 { -d3 } else { d3 };
+
+ let b1 = b + delta;
+ if b1 < 0 { buf[off - 1 + y * stride] = 0; }
+ else if b1 > 255 { buf[off - 1 + y * stride] = 0xFF; }
+ else { buf[off - 1 + y * stride] = b1 as u8; }
+ let c1 = c - delta;
+ if c1 < 0 { buf[off + y * stride] = 0; }
+ else if c1 > 255 { buf[off + y * stride] = 0xFF; }
+ else { buf[off + y * stride] = c1 as u8; }
+ }
+ }
+}
+
+pub fn h263_filter_row(buf: &mut NAVideoBuffer<u8>, mb_y: usize, mb_w: usize, cbpi: &CBPInfo) {
+ let stride = buf.get_stride(0);
+ let mut off = buf.get_offset(0) + mb_y * 16 * stride;
+ for mb_x in 0..mb_w {
+ let coff = off;
+ let coded0 = cbpi.is_coded(mb_x, 0);
+ let coded1 = cbpi.is_coded(mb_x, 1);
+ let q = cbpi.get_q(mb_w + mb_x);
+ if mb_y != 0 {
+ if coded0 && cbpi.is_coded_top(mb_x, 0) { deblock_hor(buf, 0, q, coff); }
+ if coded1 && cbpi.is_coded_top(mb_x, 1) { deblock_hor(buf, 0, q, coff + 8); }
+ }
+ let coff = off + 8 * stride;
+ if cbpi.is_coded(mb_x, 2) && coded0 { deblock_hor(buf, 0, q, coff); }
+ if cbpi.is_coded(mb_x, 3) && coded1 { deblock_hor(buf, 0, q, coff + 8); }
+ off += 16;
+ }
+ let mut leftt = false;
+ let mut leftc = false;
+ let mut off = buf.get_offset(0) + mb_y * 16 * stride;
+ for mb_x in 0..mb_w {
+ let ctop0 = cbpi.is_coded_top(mb_x, 0);
+ let ctop1 = cbpi.is_coded_top(mb_x, 0);
+ let ccur0 = cbpi.is_coded(mb_x, 0);
+ let ccur1 = cbpi.is_coded(mb_x, 1);
+ let q = cbpi.get_q(mb_w + mb_x);
+ if mb_y != 0 {
+ let coff = off - 8 * stride;
+ let qtop = cbpi.get_q(mb_x);
+ if leftt && ctop0 { deblock_ver(buf, 0, qtop, coff); }
+ if ctop0 && ctop1 { deblock_ver(buf, 0, qtop, coff + 8); }
+ }
+ if leftc && ccur0 { deblock_ver(buf, 0, q, off); }
+ if ccur0 && ccur1 { deblock_ver(buf, 0, q, off + 8); }
+ leftt = ctop1;
+ leftc = ccur1;
+ off += 16;
+ }
+ let strideu = buf.get_stride(1);
+ let stridev = buf.get_stride(2);
+ let offu = buf.get_offset(1) + mb_y * 8 * strideu;
+ let offv = buf.get_offset(2) + mb_y * 8 * stridev;
+ if mb_y != 0 {
+ for mb_x in 0..mb_w {
+ let ctu = cbpi.is_coded_top(mb_x, 4);
+ let ccu = cbpi.is_coded(mb_x, 4);
+ let ctv = cbpi.is_coded_top(mb_x, 5);
+ let ccv = cbpi.is_coded(mb_x, 5);
+ let q = cbpi.get_q(mb_w + mb_x);
+ if ctu && ccu { deblock_hor(buf, 1, q, offu + mb_x * 8); }
+ if ctv && ccv { deblock_hor(buf, 2, q, offv + mb_x * 8); }
+ }
+ let mut leftu = false;
+ let mut leftv = false;
+ let offu = buf.get_offset(1) + (mb_y - 1) * 8 * strideu;
+ let offv = buf.get_offset(2) + (mb_y - 1) * 8 * stridev;
+ for mb_x in 0..mb_w {
+ let ctu = cbpi.is_coded_top(mb_x, 4);
+ let ctv = cbpi.is_coded_top(mb_x, 5);
+ let qt = cbpi.get_q(mb_x);
+ if leftu && ctu { deblock_ver(buf, 1, qt, offu + mb_x * 8); }
+ if leftv && ctv { deblock_ver(buf, 2, qt, offv + mb_x * 8); }
+ leftu = ctu;
+ leftv = ctv;
+ }
+ }
+}
+
+impl BlockDSP for H263BlockDSP {
+ fn idct(&self, blk: &mut [i16; 64]) {
+ h263_idct(blk)
+ }
+ fn copy_blocks(&self, dst: &mut NAVideoBuffer<u8>, src: &NAVideoBuffer<u8>, xpos: usize, ypos: usize, w: usize, h: usize, mv: MV) {
+ let srcx = ((mv.x >> 1) as isize) + (xpos as isize);
+ let srcy = ((mv.y >> 1) as isize) + (ypos as isize);
+ let mode = ((mv.x & 1) + (mv.y & 1) * 2) as usize;
+
+ blockdsp::copy_blocks(dst, src, xpos, ypos, srcx, srcy, w, h, 0, 1, mode, H263_INTERP_FUNCS);
+ }
+ fn avg_blocks(&self, dst: &mut NAVideoBuffer<u8>, src: &NAVideoBuffer<u8>, xpos: usize, ypos: usize, w: usize, h: usize, mv: MV) {
+ let srcx = ((mv.x >> 1) as isize) + (xpos as isize);
+ let srcy = ((mv.y >> 1) as isize) + (ypos as isize);
+ let mode = ((mv.x & 1) + (mv.y & 1) * 2) as usize;
+
+ blockdsp::copy_blocks(dst, src, xpos, ypos, srcx, srcy, w, h, 0, 1, mode, H263_INTERP_AVG_FUNCS);
+ }
+ fn filter_row(&self, buf: &mut NAVideoBuffer<u8>, mb_y: usize, mb_w: usize, cbpi: &CBPInfo) {
+ h263_filter_row(buf, mb_y, mb_w, cbpi)
+ }
+}
projects / nihav.git / blobdiff