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|
use anyhow::Context;
use clap::Parser;
use evc::{
codec::{
compress::compress_block,
decode::decode_block,
encode::{encode_block, EncodeConfig, EncodeMode},
},
format::{header::Header, ser::Sink},
frame::Frame,
helpers::vector::Vec2,
};
use log::info;
use std::io::{BufReader, BufWriter};
#[derive(Parser)]
#[clap(about, version)]
pub struct EncodeArgs {
#[arg(short = 'W', long)]
width: usize,
#[arg(short = 'H', long)]
height: usize,
#[arg(short, long)]
mode: EncodeMode,
#[arg(short, long, default_value = "8")]
jobs: usize,
#[arg(short, long, default_value = "8")]
min_block_size: isize,
#[arg(short = 't', long, default_value = "200")]
ref_thres: f64,
}
fn main() -> anyhow::Result<()> {
env_logger::init_from_env("LOG");
let args = EncodeArgs::parse();
let mut input = BufReader::new(std::io::stdin());
let mut output = BufWriter::new(std::io::stdout());
let config = EncodeConfig {
mode: args.mode,
ref_thres: args.ref_thres,
weight_factor: 50.0,
max_diff_area: 10_000,
min_block_size: args.min_block_size,
max_threads: args.jobs,
do_matrix_transform: false,
do_value_scale: false,
};
let size = Vec2 {
x: args.width as isize,
y: args.height as isize,
};
output
.put(Header {
resolution: size,
frame_count: 0,
})
.context("writing header")?;
let mut prev_frame = Frame::new(size);
for i in 0.. {
info!("encode frame {i}");
let mut frame = Frame::read(&mut input, size).context("reading raw frame")?;
let v1 = frame.view();
let v2 = prev_frame.view();
let (error, mut root) = encode_block(v1, v2, &config);
compress_block(
&mut root,
Vec2 {
x: size.x as usize,
y: size.y as usize,
},
);
root.write(&mut output, size)
.context("writing encoded frame")?;
info!(
"cumulative error: {error} ({} per pixel)",
error / frame.view().area() as f64
);
decode_block(
&root,
frame.view_mut(),
prev_frame.view(),
&evc::codec::decode::DecodeConfig {
max_threads: config.max_threads,
},
);
prev_frame = frame;
}
Ok(())
}
|
