VP6 encoder

[nihav.git] / nihav-duck / src / codecs / vp6.rs

diff --git a/nihav-duck/src/codecs/vp6.rs b/nihav-duck/src/codecs/vp6.rs
index 08ebb87689a95efa806d276ee3ed1f2a49334226..15bd832452a40974383391912bc9514fef74c7d0 100644 (file)
--- a/nihav-duck/src/codecs/vp6.rs
+++ b/nihav-duck/src/codecs/vp6.rs
@@ -1,10 +1,10 @@
 use nihav_core::codecs::*;
 use nihav_core::io::bitreader::*;
 use nihav_codec_support::codecs::{MV, ZIGZAG};
-use nihav_codec_support::codecs::blockdsp::edge_emu;
 use super::vpcommon::*;
 use super::vp56::*;
 use super::vp6data::*;
+use super::vp6dsp::*;
 
 #[derive(Default)]
 struct VP6BR {
@@ -473,124 +473,6 @@ fn decode_zero_run_huff(br: &mut BitReader, huff: &VP6Huff) -> DecoderResult<usi
     }
 }
 
-#[allow(clippy::too_many_arguments)]
-fn get_block(dst: &mut [u8], dstride: usize, src: NAVideoBufferRef<u8>, comp: usize,
-             dx: usize, dy: usize, mv_x: i16, mv_y: i16)
-{
-    let (w, h) = src.get_dimensions(comp);
-    let sx = (dx as isize) + (mv_x as isize);
-    let sy = (dy as isize) + (mv_y as isize);
-
-    if (sx - 2 < 0) || (sx + 8 + 2 > (w as isize)) ||
-       (sy - 2 < 0) || (sy + 8 + 2 > (h as isize)) {
-        edge_emu(&src, sx - 2, sy - 2, 8 + 2 + 2, 8 + 2 + 2,
-                 dst, dstride, comp, 0);
-    } else {
-        let sstride = src.get_stride(comp);
-        let soff    = src.get_offset(comp);
-        let sdta    = src.get_data();
-        let sbuf: &[u8] = sdta.as_slice();
-        let saddr = soff + ((sx - 2) as usize) + ((sy - 2) as usize) * sstride;
-        let src = &sbuf[saddr..];
-        for (dline, sline) in dst.chunks_mut(dstride).zip(src.chunks(sstride)).take(12) {
-            dline[..12].copy_from_slice(&sline[..12]);
-        }
-    }
-}
-
-fn calc_variance(src: &[u8], stride: usize) -> u16 {
-    let mut sum = 0;
-    let mut ssum = 0;
-    for line in src.chunks(stride * 2).take(4) {
-        for el in line.iter().take(8).step_by(2) {
-            let pix = u32::from(*el);
-            sum += pix;
-            ssum += pix * pix;
-        }
-    }
-    ((ssum * 16 - sum * sum) >> 8) as u16
-}
-
-macro_rules! mc_filter {
-    (bilinear; $a: expr, $b: expr, $c: expr) => {
-        ((u16::from($a) * (8 - $c) + u16::from($b) * $c + 4) >> 3) as u8
-    };
-    (bicubic; $src: expr, $off: expr, $step: expr, $coeffs: expr) => {
-        ((i32::from($src[$off - $step]    ) * i32::from($coeffs[0]) +
-          i32::from($src[$off]            ) * i32::from($coeffs[1]) +
-          i32::from($src[$off + $step]    ) * i32::from($coeffs[2]) +
-          i32::from($src[$off + $step * 2]) * i32::from($coeffs[3]) + 64) >> 7).min(255).max(0) as u8
-    }
-}
-
-//#[allow(snake_case)]
-fn mc_bilinear(dst: &mut [u8], dstride: usize, src: &[u8], mut soff: usize, sstride: usize, mx: u16, my: u16) {
-    if my == 0 {
-        for dline in dst.chunks_mut(dstride).take(8) {
-            for i in 0..8 {
-                dline[i] = mc_filter!(bilinear; src[soff + i], src[soff + i + 1], mx);
-            }
-            soff += sstride;
-        }
-    } else if mx == 0 {
-        for dline in dst.chunks_mut(dstride).take(8) {
-            for i in 0..8 {
-                dline[i] = mc_filter!(bilinear; src[soff + i], src[soff + i + sstride], my);
-            }
-            soff += sstride;
-        }
-    } else {
-        let mut tmp = [0u8; 8];
-        for i in 0..8 {
-            tmp[i] = mc_filter!(bilinear; src[soff + i], src[soff + i + 1], mx);
-        }
-        soff += sstride;
-        for dline in dst.chunks_mut(dstride).take(8) {
-            for i in 0..8 {
-                let cur = mc_filter!(bilinear; src[soff + i], src[soff + i + 1], mx);
-                dline[i] = mc_filter!(bilinear; tmp[i], cur, my);
-                tmp[i] = cur;
-            }
-            soff += sstride;
-        }
-    }
-}
-
-#[allow(clippy::trivially_copy_pass_by_ref)]
-fn mc_bicubic(dst: &mut [u8], dstride: usize, src: &[u8], mut soff: usize, sstride: usize, coeffs_w: &[i16; 4], coeffs_h: &[i16; 4]) {
-    if coeffs_h[1] == 128 {
-        for dline in dst.chunks_mut(dstride).take(8) {
-            for i in 0..8 {
-                dline[i] = mc_filter!(bicubic; src, soff + i, 1, coeffs_w);
-            }
-            soff += sstride;
-        }
-    } else if coeffs_w[1] == 128 { // horizontal-only interpolation
-        for dline in dst.chunks_mut(dstride).take(8) {
-            for i in 0..8 {
-                dline[i] = mc_filter!(bicubic; src, soff + i, sstride, coeffs_h);
-            }
-            soff += sstride;
-        }
-    } else {
-        let mut buf = [0u8; 16 * 11];
-        soff -= sstride;
-        for dline in buf.chunks_mut(16) {
-            for i in 0..8 {
-                dline[i] = mc_filter!(bicubic; src, soff + i, 1, coeffs_w);
-            }
-            soff += sstride;
-        }
-        let mut soff = 16;
-        for dline in dst.chunks_mut(dstride).take(8) {
-            for i in 0..8 {
-                dline[i] = mc_filter!(bicubic; buf, soff + i, 16, coeffs_h);
-            }
-            soff += 16;
-        }
-    }
-}
-
 struct VP6Decoder {
     dec:        VP56Decoder,
     info:       NACodecInfoRef,