start remuxer crate rewrite; added matroska demuxer and format detection

1 files changed, 0 insertions, 51 deletions

diff --git a/remuxer/src/extract.rs b/remuxer/src/extract.rs
deleted file mode 100644
index 15c1e9d..0000000
--- a/remuxer/src/extract.rs
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
-    This file is part of jellything (https://codeberg.org/metamuffin/jellything)
-    which is licensed under the GNU Affero General Public License (version 3); see /COPYING.
-    Copyright (C) 2025 metamuffin <metamuffin.org>
-*/
-use crate::seek_index::get_seek_index;
-use anyhow::{anyhow, bail};
-use jellymatroska::{block::Block, read::EbmlReader, Master, MatroskaTag};
-use log::debug;
-use std::{fs::File, io::BufReader, path::PathBuf};
-
-pub type TrackExtract = Vec<(u64, Option<u64>, Vec<u8>)>;
-pub fn extract_track(path: PathBuf, track: u64) -> anyhow::Result<TrackExtract> {
-    let file = File::open(&path)?;
-    let mut reader = EbmlReader::new(BufReader::new(file));
-    let index = get_seek_index(&path)?;
-    let index = index.get(&track).ok_or(anyhow!("track missing"))?;
-
-    let mut out = Vec::new();
-    for b in &index.blocks {
-        reader.seek(b.source_off, MatroskaTag::BlockGroup(Master::Start))?;
-        let (duration, block) = read_group(&mut reader)?;
-        assert_eq!(track, block.track, "seek index is wrong");
-        out.push((b.pts, duration, block.data))
-    }
-    Ok(out)
-}
-
-pub fn read_group(segment: &mut EbmlReader) -> anyhow::Result<(Option<u64>, Block)> {
-    let (mut dur, mut block) = (None, None);
-    for _ in 0..10 {
-        let (_, item) = segment.next().ok_or(anyhow!("eof"))??;
-        match item {
-            MatroskaTag::Void(_) => (),
-            MatroskaTag::Crc32(_) => (),
-            MatroskaTag::Cluster(_) => bail!("unexpected cluster"),
-            MatroskaTag::Timestamp(_) => (),
-            MatroskaTag::SimpleBlock(block) => {
-                return Ok((None, block)); // HDMV/PGS does not use duration?!
-            }
-            MatroskaTag::BlockGroup(Master::Start) => (),
-            MatroskaTag::BlockGroup(Master::End) => return Ok((dur, block.unwrap())),
-            MatroskaTag::BlockDuration(duration) => dur = Some(duration),
-            MatroskaTag::Block(blk) => block = Some(blk),
-            MatroskaTag::Cues(_) => bail!("reached cues, this is the end"),
-            MatroskaTag::Segment(Master::End) => bail!("extractor reached segment end"),
-            _ => debug!("(rs) tag ignored: {item:?}"),
-        }
-    }
-    bail!(".")
-}