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|
use clap::Parser;
use evc::{
block::{Block, BlockInner},
frame::Frame,
view::View,
};
use std::io::{self, BufReader};
#[derive(Parser)]
#[clap(about, version)]
pub struct EncodeArgs {
#[arg(short = 'W', long)]
width: usize,
#[arg(short = 'H', long)]
height: usize,
}
fn main() -> io::Result<()> {
let args = EncodeArgs::parse();
let mut input = BufReader::new(std::io::stdin());
let size = (args.width, args.height);
let mut prev_frame = Frame::new(size);
for i in 0.. {
println!("frame {i}");
let frame = Frame::read(&mut input, size)?;
let v1 = frame.view((0, 0), size);
let v2 = prev_frame.view((0, 0), size);
encode_block(v1, v2);
prev_frame = frame;
}
Ok(())
}
fn encode_block(view: View, prev: View) -> Block {
let diff = View::diff(&view, &prev);
let inner = if diff < 10_000.0 {
BlockInner::Reference {
translation: (0, 0),
}
} else {
if view.size.0 < 32 {
BlockInner::Literal(view.pixels())
} else {
let [a, b] = view.split();
let [ap, bp] = prev.split();
BlockInner::Split(Box::new([encode_block(a, ap), encode_block(b, bp)]))
}
};
Block {
size: view.size,
inner,
}
}
|
