workspace

5 files changed, 0 insertions, 390 deletions

diff --git a/tweak/.gitignore b/tweak/.gitignore
deleted file mode 100644
index c41cc9e..0000000
--- a/tweak/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/target
\ No newline at end of file
diff --git a/tweak/Cargo.lock b/tweak/Cargo.lock
deleted file mode 100644
index 6093019..0000000
--- a/tweak/Cargo.lock
+++ /dev/null
@@ -1,156 +0,0 @@
-# This file is automatically @generated by Cargo.
-# It is not intended for manual editing.
-version = 3
-
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-version = "1.1.0"
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-dependencies = [
- "cfg-if",
- "crossbeam-epoch",
- "crossbeam-utils",
-]
-
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- "crossbeam-utils",
- "memoffset",
- "scopeguard",
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- "wasi",
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- "rand_core",
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- "getrandom",
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- "either",
- "rayon-core",
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-
-[[package]]
-name = "tweak"
-version = "0.1.0"
-dependencies = [
- "rand",
- "rayon",
-]
-
-[[package]]
-name = "wasi"
-version = "0.11.0+wasi-snapshot-preview1"
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diff --git a/tweak/Cargo.toml b/tweak/Cargo.toml
deleted file mode 100644
index 2c19efb..0000000
--- a/tweak/Cargo.toml
+++ /dev/null
@@ -1,8 +0,0 @@
-[package]
-name = "tweak"
-version = "0.1.0"
-edition = "2021"
-
-[dependencies]
-rayon = "1.8.0"
-rand = "0.8.5"
diff --git a/tweak/src/main.rs b/tweak/src/main.rs
deleted file mode 100644
index b2144a3..0000000
--- a/tweak/src/main.rs
+++ /dev/null
@@ -1,221 +0,0 @@
-use rayon::join;
-use std::{
-    io::{stdin, stdout, Read, Write},
-    time::Instant,
-};
-
-const WIDTH: usize = 1920;
-const HEIGHT: usize = 1080;
-
-fn main() {
-    let mut oframe = Frame::new();
-    let mut dframe = Frame::new();
-    let mut out = Vec::<u8>::new();
-    let do_debug = false;
-    loop {
-        let timer = Instant::now();
-        let iframe = Frame::read(stdin());
-
-        let t = encode(&oframe, &iframe, Area::root());
-        decode(&mut oframe, Area::root(), &t);
-
-        write(&mut out, &t);
-
-        if do_debug {
-            dframe.0.copy_from_slice(&oframe.0);
-            debug(&mut dframe, Area::root(), &t);
-            dframe.write(stdout());
-        } else {
-            oframe.write(stdout());
-        }
-
-        eprintln!(
-            "compression={:.01} time={:?}",
-            (WIDTH * HEIGHT * 3) as f64 / out.len() as f64,
-            timer.elapsed()
-        );
-        out.clear();
-    }
-}
-
-pub fn write(w: &mut Vec<u8>, t: &DiffTree) {
-    match t {
-        DiffTree::Split([a, b]) => {
-            w.push(0);
-            write(w, a);
-            write(w, b);
-        }
-        DiffTree::Diff(d) => w.extend([1, d.0[0] as u8, d.0[1] as u8, d.0[2] as u8]),
-    }
-}
-
-pub fn decode(f: &mut Frame, area: Area, tree: &DiffTree) {
-    match tree {
-        DiffTree::Split([ta, tb]) => {
-            let (aa, ab) = area.split();
-            decode(f, aa, ta);
-            decode(f, ab, tb);
-        }
-        DiffTree::Diff(diff) => {
-            f.apply_area_diff(area, *diff);
-        }
-    }
-}
-pub fn debug(f: &mut Frame, area: Area, tree: &DiffTree) {
-    match tree {
-        DiffTree::Split([ta, tb]) => {
-            let (aa, ab) = area.split();
-            decode(f, aa, ta);
-            decode(f, ab, tb);
-        }
-        DiffTree::Diff(_diff) => {
-            let Area { x1, y1, x2, y2 } = area;
-            for x in x1..x2 {
-                for y in y1..y2 {
-                    let o = (x + y * WIDTH) * 3;
-                    f.0[o + 0] = 255;
-                    f.0[o + 1] = 0;
-                    f.0[o + 2] = 255;
-                }
-            }
-        }
-    }
-}
-
-pub fn encode(a: &Frame, b: &Frame, area: Area) -> DiffTree {
-    if area.area() == 1 {
-        DiffTree::Diff(Frame::diff_pixel(a, b, area.x1, area.y1))
-    } else {
-        let (aa, ba) = area.split();
-        let (at, bt) = join(|| encode(a, b, aa), || encode(a, b, ba));
-
-        match (&at, &bt) {
-            (DiffTree::Diff(ad), DiffTree::Diff(bd)) => {
-                let d_r = ad.0[0].abs_diff(bd.0[0]);
-                let d_g = ad.0[1].abs_diff(bd.0[1]);
-                let d_b = ad.0[2].abs_diff(bd.0[2]);
-
-                let visdiff = (d_r as usize + d_g as usize + d_b as usize) * aa.area();
-                if visdiff < 100 {
-                    return DiffTree::Diff(PixelDiff([
-                        ((ad.0[0] as i16 + bd.0[0] as i16) / 2) as i8,
-                        ((ad.0[1] as i16 + bd.0[1] as i16) / 2) as i8,
-                        ((ad.0[2] as i16 + bd.0[2] as i16) / 2) as i8,
-                    ]));
-                }
-            }
-            _ => (),
-        }
-        DiffTree::Split([Box::new(at), Box::new(bt)])
-    }
-}
-
-pub enum DiffTree {
-    Split([Box<DiffTree>; 2]),
-    Diff(PixelDiff),
-}
-
-#[derive(Debug)]
-pub struct Frame(Vec<u8>);
-#[derive(Debug, Clone, Copy)]
-pub struct PixelDiff([i8; 3]);
-#[derive(Debug, Clone, Copy)]
-pub struct Area {
-    x1: usize,
-    y1: usize,
-    x2: usize,
-    y2: usize,
-}
-
-#[inline]
-fn diff_clamp(x: u8, y: u8) -> i8 {
-    if y >= x {
-        (y - x).min(127) as i8
-    } else {
-        -((x - y).min(128) as i8)
-    }
-}
-
-impl Frame {
-    pub fn new() -> Self {
-        Self(vec![0u8; WIDTH * HEIGHT * 3])
-    }
-    pub fn read(mut r: impl Read) -> Self {
-        let mut f = Frame::new();
-        r.read_exact(&mut f.0).unwrap();
-        f
-    }
-    pub fn write(&self, mut w: impl Write) {
-        w.write_all(&self.0).unwrap()
-    }
-
-    pub fn diff_pixel(a: &Frame, b: &Frame, x: usize, y: usize) -> PixelDiff {
-        let o = (x + y * WIDTH) * 3;
-        PixelDiff([
-            diff_clamp(a.0[o + 0], b.0[o + 0]),
-            diff_clamp(a.0[o + 1], b.0[o + 1]),
-            diff_clamp(a.0[o + 2], b.0[o + 2]),
-        ])
-    }
-
-    pub fn apply_area_diff(&mut self, Area { x1, y1, x2, y2 }: Area, p: PixelDiff) {
-        for x in x1..x2 {
-            for y in y1..y2 {
-                let o = (x + y * WIDTH) * 3;
-                self.0[o + 0] = self.0[o + 0].saturating_add_signed(p.0[0]);
-                self.0[o + 1] = self.0[o + 1].saturating_add_signed(p.0[1]);
-                self.0[o + 2] = self.0[o + 2].saturating_add_signed(p.0[2]);
-            }
-        }
-    }
-    // pub fn average_area_diff(
-    //     &self,
-    //     other: &Frame,
-    //     area @ Area { x1, y1, x2, y2 }: Area,
-    // ) -> PixelDiff {
-    //     let (mut r, mut g, mut b) = (0i32, 0i32, 0i32);
-    //     for x in x1..x2 {
-    //         for y in y1..y2 {
-    //             let o = (x + y * WIDTH) * 3;
-    //             r += other.0[o + 0] as i32 - self.0[o + 0] as i32;
-    //             g += other.0[o + 1] as i32 - self.0[o + 1] as i32;
-    //             b += other.0[o + 2] as i32 - self.0[o + 2] as i32;
-    //         }
-    //     }
-    //     let a = area.area() as i32;
-    //     PixelDiff([
-    //         (r / a).clamp(i8::MIN as i32, i8::MAX as i32) as i8,
-    //         (g / a).clamp(i8::MIN as i32, i8::MAX as i32) as i8,
-    //         (b / a).clamp(i8::MIN as i32, i8::MAX as i32) as i8,
-    //     ])
-    // }
-}
-impl Area {
-    pub fn area(&self) -> usize {
-        self.width() as usize * self.height() as usize
-    }
-    pub fn width(&self) -> usize {
-        self.x2 - self.x1
-    }
-    pub fn height(&self) -> usize {
-        self.y2 - self.y1
-    }
-    pub fn root() -> Self {
-        Area {
-            x1: 0,
-            y1: 0,
-            x2: WIDTH,
-            y2: HEIGHT,
-        }
-    }
-    pub fn split(&self) -> (Self, Self) {
-        let Area { x1, y1, x2, y2 } = *self;
-        if self.width() > self.height() {
-            let xm = (self.x1 + self.x2) / 2;
-            (Self { x1, x2: xm, y1, y2 }, Self { x1: xm, x2, y1, y2 })
-        } else {
-            let ym = (self.y1 + self.y2) / 2;
-            (Self { x1, x2, y1, y2: ym }, Self { x1, x2, y1: ym, y2 })
-        }
-    }
-}
diff --git a/tweak/test b/tweak/test
deleted file mode 100755
index 4bfc7d8..0000000
--- a/tweak/test
+++ /dev/null
@@ -1,4 +0,0 @@
-#!/bin/fish
-ffmpeg -loglevel quiet -i $argv[1] -vf 'scale=1920x1080,format=rgb24' -f rawvideo pipe:1 \
-    | cargo run --release \
-    | ffplay -loglevel quiet -video_size 1920x1080 -pixel_format rgb24 -f rawvideo pipe:0