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|
use anyhow::{anyhow, bail, Result};
use clap::Parser;
use jellycommon::{ItemInfo, SourceTrack, SourceTrackKind};
use jellymatroska::{
matroska::MatroskaTag,
read::EbmlReader,
unflatten::{Unflat, Unflatten},
Master,
};
use log::{debug, error, info, trace, warn};
use std::{fs::File, io::Write, path::PathBuf};
#[derive(Parser)]
struct Args {
#[clap(short = 'I', long)]
item: PathBuf,
#[clap(short = 'd', long)]
dry: bool,
#[clap(short = 'i', long)]
input: PathBuf,
}
fn main() -> anyhow::Result<()> {
env_logger::init_from_env("LOG");
let args = Args::parse();
let mut iteminfo: ItemInfo = serde_json::from_reader(File::open(&args.item)?)?;
// let iteminfo_orig = iteminfo.clone();
let input = File::open(args.input.clone()).unwrap();
let mut input = EbmlReader::new(input);
read(&mut input, &mut iteminfo)?;
let k = serde_json::to_string_pretty(&iteminfo)?;
if args.dry {
println!("{k}")
} else {
let mut f = File::create(args.item)?;
f.write_all(k.as_bytes())?;
}
Ok(())
}
pub fn read(input: &mut EbmlReader, iteminfo: &mut ItemInfo) -> Result<()> {
// TODO dont traverse the entire file, if the tracks are listed at the end
let mut sbc = 0;
while let Some(item) = input.next() {
let item = item?;
match item {
MatroskaTag::Cluster(_) => {
info!("start of cluster found");
let mut iter = Unflatten::new_with_end(input, item);
while let Some(Ok(Unflat { children, item })) = iter.next() {
match item {
MatroskaTag::BlockGroup(_) => {
debug!("group");
let mut iter = children.unwrap();
while let Some(Ok(Unflat { children, item })) = iter.next() {
match item {
MatroskaTag::Block(_) => (),
_ => trace!("{item:?}"),
}
}
}
MatroskaTag::SimpleBlock(_) => {
// debug!("simple");
}
_ => debug!("(rc) tag ignored: {item:?}"),
}
}
sbc += 1;
}
MatroskaTag::Tags(_) => {
Unflatten::new_with_end(input, item);
}
MatroskaTag::Cues(_) => {
let mut iter = Unflatten::new_with_end(input, item);
while let Some(Ok(Unflat { children, item })) = iter.next() {
match item {
MatroskaTag::CuePoint(_) => {
let mut children = children.unwrap();
while let Some(Ok(Unflat { children, item })) = children.next() {
// error!("{item:?}")
}
}
_ => (),
}
}
}
MatroskaTag::Chapters(_) => {
Unflatten::new_with_end(input, item);
}
MatroskaTag::Tracks(_) => {
let mut iter = Unflatten::new_with_end(input, item);
while let Some(Ok(Unflat { children, item })) = iter.next() {
match item {
MatroskaTag::TrackEntry(_) => {
let mut children = children.unwrap();
let (
mut index,
mut language,
mut codec,
mut kind,
mut sample_rate,
mut channels,
mut width,
mut height,
mut name,
mut fps,
mut bit_depth,
) = (
None, None, None, None, None, None, None, None, None, None, None,
);
while let Some(Ok(Unflat { children, item })) = children.next() {
match item {
MatroskaTag::CodecID(b) => codec = Some(b),
MatroskaTag::Language(v) => language = Some(v),
MatroskaTag::TrackNumber(v) => index = Some(v),
MatroskaTag::TrackType(v) => kind = Some(v),
MatroskaTag::Name(v) => name = Some(v),
MatroskaTag::Audio(_) => {
let mut children = children.unwrap();
while let Some(Ok(Unflat { item, .. })) = children.next() {
match item {
MatroskaTag::Channels(v) => {
channels = Some(v as usize)
}
MatroskaTag::SamplingFrequency(v) => {
sample_rate = Some(v)
}
MatroskaTag::BitDepth(v) => bit_depth = Some(v),
_ => (),
}
}
}
MatroskaTag::Video(_) => {
let mut children = children.unwrap();
while let Some(Ok(Unflat { item, .. })) = children.next() {
match item {
MatroskaTag::PixelWidth(v) => width = Some(v),
MatroskaTag::PixelHeight(v) => height = Some(v),
MatroskaTag::FrameRate(v) => fps = Some(v),
_ => (),
}
}
}
_ => (),
}
}
let index = index.unwrap();
let kind = match kind.ok_or(anyhow!("track type required"))? {
1 => SourceTrackKind::Video {
fps: fps.unwrap_or(f64::NAN), // TODO
width: width.unwrap(),
height: height.unwrap(),
},
2 => SourceTrackKind::Audio {
bit_depth: bit_depth.unwrap_or(0) as usize, // TODO
channels: channels.unwrap(),
sample_rate: sample_rate.unwrap(),
},
17 => SourceTrackKind::Subtitles,
_ => bail!("invalid track type"),
};
iteminfo.tracks.insert(
index,
SourceTrack {
name: name.unwrap_or_else(|| "unnamed".to_string()),
codec: codec.unwrap(),
language: language.unwrap_or_else(|| "none".to_string()),
kind,
},
);
}
_ => debug!("(rt) tag ignored: {item:?}"),
}
}
}
MatroskaTag::Segment(Master::End) => break,
_ => debug!("(r) tag ignored: {item:?}"),
}
}
info!("clusters {sbc}");
Ok(())
}
|
