let diff = ((a - d) + (c - b) * 4) / 8;
if (diff != 0) && (diff > -24) && (diff < 24) {
let d1a = (diff.abs() - 2 * (diff.abs() - (strength as i16)).max(0)).max(0);
- let d1 = if d1a < 0 { 0 } else { d1a };
+ let d1 = if diff < 0 { -d1a } else { d1a };
let hd1 = d1a / 2;
let d2 = ((a - d) / 4).max(-hd1).min(hd1);
let diff = (a - d + (c - b) * 4) / 8;
if (diff != 0) && (diff > -24) && (diff < 24) {
let d1a = (diff.abs() - 2 * (diff.abs() - (strength as i16)).max(0)).max(0);
- let d1 = if d1a < 0 { 0 } else { d1a };
+ let d1 = if diff < 0 { -d1a } else { d1a };
let hd1 = d1a / 2;
let d2 = ((a - d) / 4).max(-hd1).min(hd1);
h263_filter_row(buf, mb_y, mb_w, cbpi)
}
}
+
+macro_rules! obmc_filter {
+ ($src: expr, $base_off: expr, $off0: expr, $w0: expr, $off1: expr, $w1: expr, $off2: expr, $w2: expr) => ({
+ let a = $src[$base_off + $off0] as u16;
+ let b = $src[$base_off + $off1] as u16;
+ let c = $src[$base_off + $off2] as u16;
+ ((a * $w0 + b * $w1 + c * $w2 + 4) >> 3) as u8
+ })
+}
+pub fn obmc_filter(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize) {
+ let top_off = 8 + sstride * 0;
+ let left_off = 0 + sstride * 8;
+ let right_off = 16 + sstride * 8;
+ let bottom_off = 8 + sstride * 16;
+ let cur_off = 8 + sstride * 8;
+
+ let mut doff = 0;
+ let mut soff = 0;
+
+ dst[doff + 0] = obmc_filter!(src, soff + 0, left_off, 2, top_off, 2, cur_off, 4);
+ dst[doff + 1] = obmc_filter!(src, soff + 1, left_off, 1, top_off, 2, cur_off, 5);
+ dst[doff + 2] = obmc_filter!(src, soff + 2, left_off, 1, top_off, 2, cur_off, 5);
+ dst[doff + 3] = obmc_filter!(src, soff + 3, left_off, 1, top_off, 2, cur_off, 5);
+ dst[doff + 4] = obmc_filter!(src, soff + 4, right_off, 1, top_off, 2, cur_off, 5);
+ dst[doff + 5] = obmc_filter!(src, soff + 5, right_off, 1, top_off, 2, cur_off, 5);
+ dst[doff + 6] = obmc_filter!(src, soff + 6, right_off, 1, top_off, 2, cur_off, 5);
+ dst[doff + 7] = obmc_filter!(src, soff + 7, right_off, 2, top_off, 2, cur_off, 4);
+ doff += dstride;
+ soff += sstride;
+
+ dst[doff + 0] = obmc_filter!(src, soff + 0, left_off, 2, top_off, 1, cur_off, 5);
+ dst[doff + 1] = obmc_filter!(src, soff + 1, left_off, 2, top_off, 1, cur_off, 5);
+ dst[doff + 2] = obmc_filter!(src, soff + 2, left_off, 1, top_off, 2, cur_off, 5);
+ dst[doff + 3] = obmc_filter!(src, soff + 3, left_off, 1, top_off, 2, cur_off, 5);
+ dst[doff + 4] = obmc_filter!(src, soff + 4, right_off, 1, top_off, 2, cur_off, 5);
+ dst[doff + 5] = obmc_filter!(src, soff + 5, right_off, 1, top_off, 2, cur_off, 5);
+ dst[doff + 6] = obmc_filter!(src, soff + 6, right_off, 2, top_off, 1, cur_off, 5);
+ dst[doff + 7] = obmc_filter!(src, soff + 7, right_off, 2, top_off, 1, cur_off, 5);
+ doff += dstride;
+ soff += sstride;
+
+ dst[doff + 0] = obmc_filter!(src, soff + 0, left_off, 2, top_off, 1, cur_off, 5);
+ dst[doff + 1] = obmc_filter!(src, soff + 1, left_off, 2, top_off, 1, cur_off, 5);
+ dst[doff + 2] = obmc_filter!(src, soff + 2, left_off, 1, top_off, 1, cur_off, 6);
+ dst[doff + 3] = obmc_filter!(src, soff + 3, left_off, 1, top_off, 1, cur_off, 6);
+ dst[doff + 4] = obmc_filter!(src, soff + 4, right_off, 1, top_off, 1, cur_off, 6);
+ dst[doff + 5] = obmc_filter!(src, soff + 5, right_off, 1, top_off, 1, cur_off, 6);
+ dst[doff + 6] = obmc_filter!(src, soff + 6, right_off, 2, top_off, 1, cur_off, 5);
+ dst[doff + 7] = obmc_filter!(src, soff + 7, right_off, 2, top_off, 1, cur_off, 5);
+ doff += dstride;
+ soff += sstride;
+
+ dst[doff + 0] = obmc_filter!(src, soff + 0, left_off, 2, top_off, 1, cur_off, 5);
+ dst[doff + 1] = obmc_filter!(src, soff + 1, left_off, 2, top_off, 1, cur_off, 5);
+ dst[doff + 2] = obmc_filter!(src, soff + 2, left_off, 1, top_off, 1, cur_off, 6);
+ dst[doff + 3] = obmc_filter!(src, soff + 3, left_off, 1, top_off, 1, cur_off, 6);
+ dst[doff + 4] = obmc_filter!(src, soff + 4, right_off, 1, top_off, 1, cur_off, 6);
+ dst[doff + 5] = obmc_filter!(src, soff + 5, right_off, 1, top_off, 1, cur_off, 6);
+ dst[doff + 6] = obmc_filter!(src, soff + 6, right_off, 2, top_off, 1, cur_off, 5);
+ dst[doff + 7] = obmc_filter!(src, soff + 7, right_off, 2, top_off, 1, cur_off, 5);
+ doff += dstride;
+ soff += sstride;
+
+ dst[doff + 0] = obmc_filter!(src, soff + 0, left_off, 2, bottom_off, 1, cur_off, 5);
+ dst[doff + 1] = obmc_filter!(src, soff + 1, left_off, 2, bottom_off, 1, cur_off, 5);
+ dst[doff + 2] = obmc_filter!(src, soff + 2, left_off, 1, bottom_off, 1, cur_off, 6);
+ dst[doff + 3] = obmc_filter!(src, soff + 3, left_off, 1, bottom_off, 1, cur_off, 6);
+ dst[doff + 4] = obmc_filter!(src, soff + 4, right_off, 1, bottom_off, 1, cur_off, 6);
+ dst[doff + 5] = obmc_filter!(src, soff + 5, right_off, 1, bottom_off, 1, cur_off, 6);
+ dst[doff + 6] = obmc_filter!(src, soff + 6, right_off, 2, bottom_off, 1, cur_off, 5);
+ dst[doff + 7] = obmc_filter!(src, soff + 7, right_off, 2, bottom_off, 1, cur_off, 5);
+ doff += dstride;
+ soff += sstride;
+
+ dst[doff + 0] = obmc_filter!(src, soff + 0, left_off, 2, bottom_off, 1, cur_off, 5);
+ dst[doff + 1] = obmc_filter!(src, soff + 1, left_off, 2, bottom_off, 1, cur_off, 5);
+ dst[doff + 2] = obmc_filter!(src, soff + 2, left_off, 1, bottom_off, 1, cur_off, 6);
+ dst[doff + 3] = obmc_filter!(src, soff + 3, left_off, 1, bottom_off, 1, cur_off, 6);
+ dst[doff + 4] = obmc_filter!(src, soff + 4, right_off, 1, bottom_off, 1, cur_off, 6);
+ dst[doff + 5] = obmc_filter!(src, soff + 5, right_off, 1, bottom_off, 1, cur_off, 6);
+ dst[doff + 6] = obmc_filter!(src, soff + 6, right_off, 2, bottom_off, 1, cur_off, 5);
+ dst[doff + 7] = obmc_filter!(src, soff + 7, right_off, 2, bottom_off, 1, cur_off, 5);
+ doff += dstride;
+ soff += sstride;
+
+ dst[doff + 0] = obmc_filter!(src, soff + 0, left_off, 2, bottom_off, 1, cur_off, 5);
+ dst[doff + 1] = obmc_filter!(src, soff + 1, left_off, 2, bottom_off, 1, cur_off, 5);
+ dst[doff + 2] = obmc_filter!(src, soff + 2, left_off, 1, bottom_off, 2, cur_off, 5);
+ dst[doff + 3] = obmc_filter!(src, soff + 3, left_off, 1, bottom_off, 2, cur_off, 5);
+ dst[doff + 4] = obmc_filter!(src, soff + 4, right_off, 1, bottom_off, 2, cur_off, 5);
+ dst[doff + 5] = obmc_filter!(src, soff + 5, right_off, 1, bottom_off, 2, cur_off, 5);
+ dst[doff + 6] = obmc_filter!(src, soff + 6, right_off, 2, bottom_off, 1, cur_off, 5);
+ dst[doff + 7] = obmc_filter!(src, soff + 7, right_off, 2, bottom_off, 1, cur_off, 5);
+ doff += dstride;
+ soff += sstride;
+
+ dst[doff + 0] = obmc_filter!(src, soff + 0, left_off, 2, bottom_off, 2, cur_off, 4);
+ dst[doff + 1] = obmc_filter!(src, soff + 1, left_off, 1, bottom_off, 2, cur_off, 5);
+ dst[doff + 2] = obmc_filter!(src, soff + 2, left_off, 1, bottom_off, 2, cur_off, 5);
+ dst[doff + 3] = obmc_filter!(src, soff + 3, left_off, 1, bottom_off, 2, cur_off, 5);
+ dst[doff + 4] = obmc_filter!(src, soff + 4, right_off, 1, bottom_off, 2, cur_off, 5);
+ dst[doff + 5] = obmc_filter!(src, soff + 5, right_off, 1, bottom_off, 2, cur_off, 5);
+ dst[doff + 6] = obmc_filter!(src, soff + 6, right_off, 1, bottom_off, 2, cur_off, 5);
+ dst[doff + 7] = obmc_filter!(src, soff + 7, right_off, 2, bottom_off, 2, cur_off, 4);
+}