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#![feature(box_patterns)]
use anyhow::Context;
use clap::Parser;
use indicatif::ProgressBar;
use libreschmux::{
block::Block,
codec::decode::{decode_block, DecodeConfig},
debug::draw_debug,
format::{header::Header, ser::Source},
frame::Frame,
};
use log::{info, warn};
use std::io::{BufReader, BufWriter};
#[derive(Parser)]
#[clap(about, version)]
pub struct DecodeArgs {
#[arg(long)]
debug: bool,
}
fn main() -> anyhow::Result<()> {
env_logger::init_from_env("LOG");
let args = DecodeArgs::parse();
let mut input = BufReader::new(std::io::stdin());
let mut output = BufWriter::new(std::io::stdout());
let header = input.get::<Header>().context("reading header")?;
info!("{header:?}");
if header.resolution.x * header.resolution.y > 100_000_000 {
warn!("resolution is quite big. video is likely corrupt.");
}
let size = header.resolution;
let config = DecodeConfig {};
let progress_bar = ProgressBar::new(header.frame_count as u64);
let mut prev = Frame::new(size);
for i in 0..header.frame_count {
info!("decode frame {i}");
let block = Block::read(&mut input, size).context("reading encoded frame")?;
let mut frame = Frame::new(size);
decode_block(&block, frame.view_mut(), prev.view(), &config);
progress_bar.inc(1);
if args.debug {
let mut f2 = frame.clone();
draw_debug(&block, f2.view_mut());
f2.write(&mut output).context("writing raw frame")?;
} else {
frame.write(&mut output).context("writing raw frame")?;
}
prev = frame;
}
drop(input);
Ok(())
}
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