MattJackson
7f7a66e039
src/labels/ with 4 parsers tried in order: 1. language_streams.txt (Warner CTRM CSV) 2. menu_base.prop (Warner CTRM properties) 3. streamproperties.xml + playbackconfig.xml (Criterion XML) 4. bluray_project.bin (Pixelogic binary tokens) Disc::scan() calls labels::extract() → apply_disc_labels(). If no disc files found, streams keep MPLS data as-is. No JAR fallback — disc files or nothing. Covers 4/8 discs with JARs (Dunkirk UHD, V for Vendetta BD, Being There, Barbie). Remaining 3 (Civil War, Dune, V for Vendetta UHD) have no disc config files.
89 lines
3.5 KiB
Rust
89 lines
3.5 KiB
Rust
//! Parser for `language_streams.txt` — Warner CTRM CSV format.
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//!
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//! Found at: `BDMV/JAR/*/language_streams.txt`
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//!
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//! Format:
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//! ```text
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//! playlist_id, type, stream_num, language, variant
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//! 100, audio_production, 1, eng, atmos
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//! 100, subtitle_narrative, 7, fra,
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//! ```
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use crate::drive::DriveSession;
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use crate::udf::{UdfFs, DirEntry};
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use super::{StreamLabel, StreamLabelType, LabelPurpose, LabelQualifier};
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pub fn parse(session: &mut DriveSession, udf: &UdfFs) -> Option<Vec<StreamLabel>> {
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// Search BDMV/JAR/*/ for language_streams.txt
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let jar_dir = udf.find_dir("/BDMV/JAR")?;
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let data = find_and_read(session, udf, jar_dir, "language_streams.txt")?;
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let text = std::str::from_utf8(&data).ok()?;
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let mut labels = Vec::new();
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for line in text.lines() {
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let line = line.trim();
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if line.is_empty() || line.starts_with('#') { continue; }
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let parts: Vec<&str> = line.split(',').map(|s| s.trim()).collect();
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if parts.len() < 4 { continue; }
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let _playlist_id = parts[0]; // could filter by playlist later
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let type_str = parts[1];
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let stream_num: u16 = match parts[2].parse() {
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Ok(n) => n,
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Err(_) => continue,
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};
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let language = parts[3].to_string();
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let variant = if parts.len() > 4 { parts[4].to_string() } else { String::new() };
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let (stream_type, purpose, qualifier) = match type_str {
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"audio_production" => (StreamLabelType::Audio, LabelPurpose::Normal, LabelQualifier::None),
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"audio_commentary" => (StreamLabelType::Audio, LabelPurpose::Commentary, LabelQualifier::None),
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"audio_ime" => (StreamLabelType::Audio, LabelPurpose::Ime, LabelQualifier::None),
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"subtitle_production" => (StreamLabelType::Subtitle, LabelPurpose::Normal, LabelQualifier::None),
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"subtitle_commentary" => (StreamLabelType::Subtitle, LabelPurpose::Commentary, LabelQualifier::None),
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"subtitle_narrative" => (StreamLabelType::Subtitle, LabelPurpose::Normal, LabelQualifier::Forced),
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"subtitle_dual" => (StreamLabelType::Subtitle, LabelPurpose::Normal, LabelQualifier::None),
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"subtitle_bonus" => (StreamLabelType::Subtitle, LabelPurpose::Normal, LabelQualifier::None),
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"subtitle_ime" => (StreamLabelType::Subtitle, LabelPurpose::Ime, LabelQualifier::None),
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"subtitle_ime_narrative" => (StreamLabelType::Subtitle, LabelPurpose::Ime, LabelQualifier::Forced),
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_ => continue,
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};
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// Skip feature_override_default lines
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if type_str == "feature_override_default" { continue; }
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let codec_hint = variant.clone(); // "atmos", "eda", etc.
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labels.push(StreamLabel {
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stream_number: stream_num,
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stream_type,
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language,
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name: String::new(),
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purpose,
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qualifier,
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codec_hint,
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region: String::new(),
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});
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}
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if labels.is_empty() { return None; }
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Some(labels)
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}
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/// Search subdirectories of a parent for a file by name.
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fn find_and_read(session: &mut DriveSession, udf: &UdfFs, parent: &DirEntry, filename: &str) -> Option<Vec<u8>> {
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for entry in &parent.entries {
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if entry.is_dir {
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let sub_path = format!("/BDMV/JAR/{}/{}", entry.name, filename);
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if let Ok(data) = udf.read_file(session, &sub_path) {
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if !data.is_empty() {
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return Some(data);
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}
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}
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}
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}
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None
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}
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