Matthew Jackson
337e77951c
- build.rs: pass target -arch to cc so macos_shim cross-compiles (x86_64-apple-darwin) - AACS/CSS: unit-aligned decrypting sweep; per-VTS CSS title keys (hard-fail on wrong VTS); reject truncated Unit_Key_RO; AACS 2.0 sig-verify skip; CSS bus-auth random nonce - recovery: gap-filling mapfile load; sweep/copy resume reconciliation; stale-mapfile abort; patch wedge/damage-window range reset - mux: TS continuity + PSI CC desync guards; HEVC numTemporalLayers clamp; MPEG-2 pending byte-cap; PS parse_pts marker-bit validation; HdrFormat strict parse; Unknown-variant metadata - net/keydb: network:// SSRF parity (IPv4-mapped, CGNAT, 0.0.0.0/8, Class-E); bounded keydb header read + size cap + error context - io: durable mapfile fsync; NFS writeback degrade; sync_file_range error capture; Windows SCSI u32 transfer guard
1069 lines
43 KiB
Rust
1069 lines
43 KiB
Rust
//! Stream URL resolver — parses URL strings into PES stream instances.
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//!
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//! Format: `scheme://path`
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//!
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//! | Scheme | Input | Output | Path |
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//! |--------|-------|--------|------|
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//! | disc:// | Yes | -- | empty (auto-detect) or /dev/sgN |
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//! | iso:// | Yes | -- | file path (required) |
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//! | mkv:// | Yes | Yes | file path (required) |
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//! | m2ts:// | Yes | Yes | file path (required) |
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//! | network:// | Yes (listen) | Yes (connect) | host:port (required) |
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//! | stdio:// | Yes (stdin) | Yes (stdout) | empty |
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//! | null:// | -- | Yes | empty |
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//!
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//! Bare paths without a scheme are rejected.
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//! For disc→ISO (raw sector copy), use `Disc::copy()` instead.
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//!
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//! Note: `disc://` cannot be opened through [`input`]; it returns
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//! [`crate::error::Error::DiscUrlNotDirect`]. Live-disc input must go
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//! through `Drive::open()` + `Disc::scan()` + `DiscStream::new()`, not
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//! the URL resolver.
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use super::network::NetworkStream;
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use super::null::NullStream;
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use super::pipelined_stream::PipelinedPesStream;
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use super::stdio::StdioStream;
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use super::{M2tsStream, MkvStream};
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use crate::disc::{ContentFormat, DiscTitle};
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use crate::sector::SectorSource;
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use std::io;
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use std::path::{Path, PathBuf};
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/// I/O buffer size for file streams.
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const IO_BUF_SIZE: usize = 4 * 1024 * 1024;
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/// Parsed stream URL.
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#[derive(Debug, Clone)]
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pub enum StreamUrl {
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/// Optical disc drive. Device path is optional (auto-detect if None).
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Disc { device: Option<PathBuf> },
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/// MPEG-2 transport stream file.
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M2ts { path: PathBuf },
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/// Matroska container file.
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Mkv { path: PathBuf },
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/// Network stream (host:port).
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Network { addr: String },
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/// Standard I/O (stdin/stdout).
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Stdio,
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/// ISO disc image file.
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Iso { path: PathBuf },
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/// Null sink (write-only, discards data).
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Null,
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/// Unrecognized URL.
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Unknown { raw: String },
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}
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impl StreamUrl {
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/// The scheme name (e.g. "disc", "mkv", "null").
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pub fn scheme(&self) -> &str {
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match self {
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StreamUrl::Disc { .. } => "disc",
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StreamUrl::M2ts { .. } => "m2ts",
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StreamUrl::Mkv { .. } => "mkv",
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StreamUrl::Network { .. } => "network",
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StreamUrl::Stdio => "stdio",
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StreamUrl::Iso { .. } => "iso",
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StreamUrl::Null => "null",
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StreamUrl::Unknown { .. } => "unknown",
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}
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}
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/// The path/address component, or empty string for scheme-only URLs.
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pub fn path_str(&self) -> &str {
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match self {
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StreamUrl::Disc { device: Some(p) } => p.to_str().unwrap_or(""),
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StreamUrl::Disc { device: None } => "",
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StreamUrl::M2ts { path } | StreamUrl::Mkv { path } | StreamUrl::Iso { path } => {
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path.to_str().unwrap_or("")
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}
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StreamUrl::Network { addr } => addr,
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StreamUrl::Stdio | StreamUrl::Null => "",
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StreamUrl::Unknown { raw } => raw,
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}
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}
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/// Whether this URL represents a disc source (disc:// or iso://).
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pub fn is_disc_source(&self) -> bool {
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matches!(self, StreamUrl::Disc { .. } | StreamUrl::Iso { .. })
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}
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}
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/// Parse a URL string into a typed StreamUrl.
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pub fn parse_url(url: &str) -> StreamUrl {
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if let Some(rest) = url.strip_prefix("disc://") {
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return if rest.is_empty() {
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StreamUrl::Disc { device: None }
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} else {
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StreamUrl::Disc {
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device: Some(PathBuf::from(rest)),
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}
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};
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}
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if let Some(rest) = url.strip_prefix("m2ts://") {
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return StreamUrl::M2ts {
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path: PathBuf::from(rest),
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};
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}
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if let Some(rest) = url.strip_prefix("mkv://") {
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return StreamUrl::Mkv {
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path: PathBuf::from(rest),
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};
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}
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if let Some(rest) = url.strip_prefix("network://") {
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return StreamUrl::Network {
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addr: rest.to_string(),
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};
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}
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if let Some(rest) = url.strip_prefix("null://") {
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// null:// / stdio:// are scheme-only; a trailing path is
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// malformed and must fall through to Unknown rather than be
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// silently discarded.
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if rest.is_empty() {
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return StreamUrl::Null;
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}
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}
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if let Some(rest) = url.strip_prefix("stdio://") {
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if rest.is_empty() {
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return StreamUrl::Stdio;
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}
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}
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if let Some(rest) = url.strip_prefix("iso://") {
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return StreamUrl::Iso {
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path: PathBuf::from(rest),
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};
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}
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StreamUrl::Unknown {
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raw: url.to_string(),
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}
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}
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/// Validate that a file path is non-empty and has a filename component.
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fn validate_file_path(path: &Path, scheme: &str) -> io::Result<()> {
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if path.as_os_str().is_empty() {
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return Err(crate::error::Error::StreamUrlMissingPath {
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scheme: scheme.to_string(),
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}
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.into());
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}
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if path.file_name().is_none() {
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return Err(crate::error::Error::StreamUrlInvalid {
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url: format!("{scheme}://{}", path.display()),
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}
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.into());
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}
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Ok(())
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}
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/// Validate that a network address has host:port format.
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fn validate_network_addr(addr: &str) -> io::Result<()> {
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if addr.is_empty() {
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return Err(crate::error::Error::StreamUrlMissingPath {
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scheme: "network".to_string(),
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}
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.into());
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}
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// A bare IPv6 literal ("::1", "2001:db8::1") contains ':' yet has no port,
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// so the simple `contains(':')` check would wrongly pass it and TcpListener
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// would later return an untyped io::Error. Treat anything that parses as a
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// bare IpAddr (v4 or v6) as port-less.
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if addr.parse::<std::net::IpAddr>().is_ok() {
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return Err(crate::error::Error::StreamUrlMissingPort {
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addr: addr.to_string(),
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}
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.into());
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}
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if !addr.contains(':') {
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return Err(crate::error::Error::StreamUrlMissingPort {
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addr: addr.to_string(),
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}
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.into());
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}
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// Split host:port on the LAST ':' so a bracketed IPv6 literal
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// (`[2001:db8::1]:9000`) splits at the port colon, not an address colon.
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// Require the port substring to be a non-empty u16 — `host:` (empty) and
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// `host:abc` (non-numeric) are invalid, despite containing ':'.
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let port = match addr.rsplit_once(':') {
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Some((_host, port)) => port,
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None => {
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return Err(crate::error::Error::StreamUrlMissingPort {
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addr: addr.to_string(),
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}
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.into());
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}
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};
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if port.is_empty() || port.parse::<u16>().is_err() {
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return Err(crate::error::Error::StreamUrlInvalid {
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url: addr.to_string(),
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}
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.into());
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}
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Ok(())
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}
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/// Options for opening an input stream.
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#[derive(Debug, Clone, Default)]
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pub struct InputOptions {
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/// Caller-resolved per-CPS-unit AACS keys to apply to the scanned disc
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/// (`(cps_unit, 16-byte key)`). Empty for an unencrypted disc or when the
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/// caller has no key. The library does no lookup — a key source resolves
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/// these and the caller passes them here.
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pub unit_keys: Vec<(u32, [u8; 16])>,
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/// 0-based title index to open; `None` selects title 0. An
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/// out-of-range index yields [`crate::error::Error::DiscTitleRange`].
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pub title_index: Option<usize>,
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/// Skip decryption — return raw encrypted bytes.
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pub raw: bool,
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}
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/// Decide whether an ISO mux must abort for lack of a usable AACS key.
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///
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/// Returns `true` only when ALL hold: decryption is requested (`!raw`), the
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/// disc carries AACS state (`has_aacs` — AACS-encrypted, not CSS/unencrypted),
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/// and key resolution produced no usable key (`keys` is
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/// [`crate::decrypt::DecryptKeys::None`]). In that case muxing would emit
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/// undecryptable garbage, so the caller fails fast with [`Error::NoDiscKey`].
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///
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/// `--raw` (raw=true) always returns `false` — raw intentionally skips
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/// decryption and needs no key. A non-AACS disc (`has_aacs=false`) always
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/// returns `false`: unencrypted content has `None` keys legitimately, and CSS
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/// DVDs resolve to `DecryptKeys::Css{..}` (never `None`).
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fn aacs_key_missing(raw: bool, has_aacs: bool, keys: &crate::decrypt::DecryptKeys) -> bool {
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!raw && has_aacs && matches!(keys, crate::decrypt::DecryptKeys::None)
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}
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/// CSS analogue of [`aacs_key_missing`]. Returns `true` when decryption is
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/// requested (`!raw`), the disc is CSS-encrypted (`has_css`), and per-title key
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/// resolution yielded no usable key (`keys` is
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/// [`crate::decrypt::DecryptKeys::None`] — e.g. a multi-VTS DVD whose chosen
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/// title's VTS could not be re-cracked). Muxing that would emit scrambled
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/// ciphertext, so the caller fails fast with [`Error::CssKeyMissing`].
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fn css_key_missing(raw: bool, has_css: bool, keys: &crate::decrypt::DecryptKeys) -> bool {
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!raw && has_css && matches!(keys, crate::decrypt::DecryptKeys::None)
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}
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/// Open a PES input stream (produces PES frames).
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pub fn input(url: &str, opts: &InputOptions) -> io::Result<Box<dyn crate::pes::Stream>> {
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let parsed = parse_url(url);
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match parsed {
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StreamUrl::Disc { .. } => {
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// Disc sources require live SCSI state — caller must use
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// `Drive::open() + Disc::scan() + DiscStream::new()` directly.
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// Surfaced as a typed error (no English commentary in the
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// library; the CLI/UI explains the right entry point).
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Err(crate::error::Error::DiscUrlNotDirect.into())
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}
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StreamUrl::Iso { ref path } => {
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validate_file_path(path, "iso")?;
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// FileSectorSource is the sole file-backed sector source.
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// It carries the platform-tuned SEQUENTIAL fadvise hint
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// (so the kernel readahead window widens) and the periodic
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// DONTNEED page-cache eviction that bounds memory pressure
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// when the mux output is being written to the same disk.
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let mut reader = crate::io::file_sector_source::FileSectorSource::open(path)?;
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let capacity = reader.capacity_sectors();
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let mut disc = crate::disc::Disc::scan_image(
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&mut reader,
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capacity,
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&crate::disc::ScanOptions::default(),
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)
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.map_err(|e| -> io::Error { e.into() })?;
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// Apply the caller-resolved keys (lookup-free); decrypt_keys() then
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// yields them for the stream below. Propagate a failed application
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// rather than silently muxing an undecryptable stream.
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if !opts.unit_keys.is_empty() {
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// These UKs were already resolved AND validated by the caller
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// (the CLI's keydb loop), so no re-validation sample is needed.
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disc.decrypt_with(crate::disc::Key::Unit(opts.unit_keys.clone()), &[])
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.map_err(|e| -> io::Error { e.into() })?;
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}
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// No-key guard: if decryption is requested (not --raw) and the disc
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// is AACS-encrypted but key resolution yielded no usable key, FAIL
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// here — muxing an undecryptable stream produces ~100 MB of garbage
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// (encrypted m2ts → no TS syncs → demuxer emits nothing). A cheap
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// result-check on `decrypt_keys()`; no probe decryption needed.
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// CSS (DVD) decrypts from compiled keys (`decrypt_keys()` returns
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// `Css{..}`, never `None`), so this gate is AACS-only via `disc.aacs`.
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if aacs_key_missing(opts.raw, disc.aacs.is_some(), &disc.decrypt_keys()) {
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// Surface the disc hash (40-hex, no `0x` prefix) so the caller
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// can name the disc. Empty if scan didn't capture it.
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let disc_hash = disc
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.aacs
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.as_ref()
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.map(|a| a.disc_hash.trim_start_matches("0x").to_string())
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.unwrap_or_default();
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return Err(crate::error::Error::NoDiscKey { disc_hash }.into());
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}
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if disc.titles.is_empty() {
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return Err(crate::error::Error::NoStreams.into());
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}
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let idx = opts.title_index.unwrap_or(0);
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if idx >= disc.titles.len() {
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return Err(crate::error::Error::DiscTitleRange {
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index: idx,
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count: disc.titles.len(),
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}
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.into());
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}
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// Per-title key resolution. For a multi-VTS CSS DVD the scan's
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// single cracked key only descrambles its own VTS; re-crack from
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// the chosen title's extents if it lives elsewhere. A fresh reader
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// avoids disturbing the mux reader below. 64 sectors is a
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// file-safe batch for an ISO. AACS / single-VTS paths are
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// unchanged (decrypt_keys_for_title short-circuits to decrypt_keys).
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let keys = match crate::io::file_sector_source::FileSectorSource::open(path) {
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Ok(mut crack_reader) => disc.decrypt_keys_for_title(idx, &mut crack_reader, 64),
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Err(_) => disc.decrypt_keys(),
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};
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// CSS no-key guard (parallel to the AACS gate above): on a CSS
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// disc, decrypt_keys_for_title may return `None` when the chosen
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// title's VTS could not be re-cracked. Muxing that would emit
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// scrambled ciphertext verbatim, so fail loudly here instead.
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if css_key_missing(opts.raw, disc.css.is_some(), &keys) {
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return Err(crate::error::Error::CssKeyMissing.into());
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}
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// Correct TrueHD channel counts (MPLS understates 7.1/Atmos as 5.1)
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// by probing the first DECRYPTED access units of the chosen title.
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// A fresh reader avoids disturbing the mux reader below. Skipped in
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// --raw mode: the probe would re-open + decrypt for nothing (on an
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// AACS disc with no key the correction is a no-op on ciphertext, and
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// raw output isn't decoded anyway).
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if !opts.raw {
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match crate::io::file_sector_source::FileSectorSource::open(path) {
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Ok(probe) => {
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let mut dec =
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crate::sector::DecryptingSectorSource::new(probe, keys.clone());
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crate::disc::correct_truehd_channels(&mut dec, &mut disc.titles[idx]);
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}
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Err(e) => {
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// Non-fatal: a failed re-open just leaves MPLS 7.1/Atmos
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// channel counts uncorrected (understated as 5.1). Log so
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// the uncorrected path is diagnosable rather than silent.
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tracing::debug!(
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target: "mux",
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"TrueHD channel-correction probe re-open failed: {e}"
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);
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}
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}
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}
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let title = disc.titles[idx].clone();
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let format = disc.content_format;
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// ISO file: 8192-sector batch (16 MiB at 2048 B/sector) —
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// sequential read from fast storage, no bad sectors. Measured
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// optimum on the rip1 testbed; bumping to 16384 sectors (32 MiB)
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// regressed (more cache pressure, longer per-batch latency starves
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// the consumer between iterations). Physical drives keep smaller
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// batches for adaptive error handling.
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const ISO_MUX_BATCH_SECTORS: u16 = 8192;
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// Pass `DecryptKeys::None` to the decrypt decorator when
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// --raw is set — the read stack still flows through the
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// same producer+demux+parse pipeline, just without the
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// AACS / CSS step. Single highway for all ISO reads.
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let effective_keys = if opts.raw {
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crate::decrypt::DecryptKeys::None
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} else {
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keys
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};
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let stream = build_iso_pipeline(
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reader,
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title,
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effective_keys,
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ISO_MUX_BATCH_SECTORS,
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format,
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None,
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None,
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)?;
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Ok(Box::new(stream))
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}
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StreamUrl::M2ts { ref path } => {
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validate_file_path(path, "m2ts")?;
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let file = std::fs::File::open(path)?;
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let reader = std::io::BufReader::with_capacity(IO_BUF_SIZE, file);
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let stream = build_m2ts_pipeline(reader)?;
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Ok(Box::new(stream))
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}
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StreamUrl::Mkv { ref path } => {
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validate_file_path(path, "mkv")?;
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let file = std::fs::File::open(path)?;
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let reader = std::io::BufReader::with_capacity(IO_BUF_SIZE, file);
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Ok(Box::new(MkvStream::open(reader)?))
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}
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StreamUrl::Network { ref addr } => {
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validate_network_addr(addr)?;
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Ok(Box::new(NetworkStream::listen(addr)?))
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}
|
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StreamUrl::Stdio => Ok(Box::new(StdioStream::input())),
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StreamUrl::Null => Err(crate::error::Error::StreamWriteOnly.into()),
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StreamUrl::Unknown { ref raw } => {
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Err(crate::error::Error::StreamUrlInvalid { url: raw.clone() }.into())
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}
|
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}
|
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}
|
|
|
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/// Open a PES output stream (consumes PES frames).
|
|
pub fn output(
|
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url: &str,
|
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title: &crate::disc::DiscTitle,
|
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) -> io::Result<Box<dyn crate::pes::Stream>> {
|
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let parsed = parse_url(url);
|
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match parsed {
|
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StreamUrl::Mkv { ref path } => {
|
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validate_file_path(path, "mkv")?;
|
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// Wrap the output in `crate::io::WritebackFile` (bounded-cache
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// writeback) so a UHD-scale MKV mux to slow / network-attached
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// staging doesn't hit the dirty-page burst pathology that
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// sweep already side-steps. BufWriter sits on top to coalesce
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// mux's many small EBML element writes. Pre-reserve the
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// target's worth of extents on Linux via fallocate(KEEP_SIZE)
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|
// to reduce extent fragmentation during the mux.
|
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let writer: Box<dyn super::WriteSeek + Send> =
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Box::new(std::io::BufWriter::with_capacity(
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IO_BUF_SIZE,
|
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crate::io::WritebackFile::create_with_size_hint(path, title.size_bytes)?,
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));
|
|
Ok(Box::new(MkvStream::create(writer, title)?))
|
|
}
|
|
StreamUrl::M2ts { ref path } => {
|
|
validate_file_path(path, "m2ts")?;
|
|
let writer = std::io::BufWriter::with_capacity(
|
|
IO_BUF_SIZE,
|
|
crate::io::WritebackFile::create_with_size_hint(path, title.size_bytes)?,
|
|
);
|
|
Ok(Box::new(M2tsStream::create(writer, title)?))
|
|
}
|
|
StreamUrl::Network { ref addr } => {
|
|
// Format-validate, then connect. `NetworkStream::connect`
|
|
// re-resolves the host and refuses any address that is
|
|
// loopback / private / link-local / multicast — this is the
|
|
// SSRF / DNS-rebinding guard, applied at the actual connect
|
|
// (not just at settings-save time). It is deliberately NOT in
|
|
// `validate_network_addr`, which is shared with the listen
|
|
// (receiver) path where binding loopback is legitimate.
|
|
validate_network_addr(addr)?;
|
|
Ok(Box::new(NetworkStream::connect(addr)?.meta(title)))
|
|
}
|
|
StreamUrl::Stdio => Ok(Box::new(StdioStream::output(title))),
|
|
StreamUrl::Null => Ok(Box::new(NullStream::new(title))),
|
|
StreamUrl::Disc { .. } => Err(crate::error::Error::StreamReadOnly.into()),
|
|
StreamUrl::Iso { .. } => Err(crate::error::Error::StreamReadOnly.into()),
|
|
StreamUrl::Unknown { ref raw } => {
|
|
Err(crate::error::Error::StreamUrlInvalid { url: raw.clone() }.into())
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Demuxer-side state derived from a `DiscTitle`: the codec parser
|
|
/// table (keyed by PID), the PID-to-track index map, and an initial
|
|
/// `TsDemuxer` / `PsDemuxer` (whichever the content format calls
|
|
/// for).
|
|
type DemuxState = (
|
|
Vec<(u16, Box<dyn super::codec::CodecParser>)>,
|
|
Vec<(u16, usize)>,
|
|
Option<super::ts::TsDemuxer>,
|
|
Option<super::ps::PsDemuxer>,
|
|
);
|
|
|
|
/// Build the title's codec parser table + initial `TsDemuxer` /
|
|
/// `PsDemuxer`. Used by both the ISO and M2TS pipeline builders.
|
|
fn build_demux_state(title: &DiscTitle, format: ContentFormat) -> DemuxState {
|
|
let mut pids = Vec::new();
|
|
let mut parsers = Vec::new();
|
|
let mut pid_to_track = Vec::new();
|
|
for (idx, s) in title.streams.iter().enumerate() {
|
|
let (pid, codec) = match s {
|
|
crate::disc::Stream::Video(v) => (v.pid, v.codec),
|
|
crate::disc::Stream::Audio(a) => (a.pid, a.codec),
|
|
crate::disc::Stream::Subtitle(s) => (s.pid, s.codec),
|
|
};
|
|
pids.push(pid);
|
|
pid_to_track.push((pid, idx));
|
|
let is_dvd_ps = matches!(format, ContentFormat::MpegPs);
|
|
parsers.push((pid, super::codec::parser_for_codec(codec, None, is_dvd_ps)));
|
|
}
|
|
let (ts, ps) = match format {
|
|
ContentFormat::MpegPs => (None, Some(super::ps::PsDemuxer::new())),
|
|
ContentFormat::BdTs => {
|
|
if pids.is_empty() {
|
|
(None, None)
|
|
} else {
|
|
(Some(super::ts::TsDemuxer::new(&pids)), None)
|
|
}
|
|
}
|
|
};
|
|
(parsers, pid_to_track, ts, ps)
|
|
}
|
|
|
|
/// Assemble the ISO mux pipeline (read+decrypt → demux → parse) for
|
|
/// a `FileSectorSource`-backed reader. Returns the resulting
|
|
/// `PipelinedPesStream`.
|
|
///
|
|
/// # Parameters
|
|
/// - `reader`: the sector source to read from (typically a
|
|
/// `FileSectorSource` over the ISO image).
|
|
/// - `title`: the selected title; its `extents` drive the read range and its
|
|
/// `streams` build the demux/parse tables.
|
|
/// - `keys`: decryption keys applied per sector batch. Pass
|
|
/// [`crate::decrypt::DecryptKeys::None`] for raw / unencrypted reads (the
|
|
/// decrypt decorator then becomes a pass-through).
|
|
/// - `batch_sectors`: read batch size in logical (2048-byte) sectors — a
|
|
/// throughput/latency tuning knob, not a correctness parameter.
|
|
/// - `format`: container format (`BdTs` → TS demuxer, `MpegPs` → PS demuxer).
|
|
/// - `halt`: cooperative cancel token (not a timeout); when cancelled the
|
|
/// pipeline stops at the next boundary. `None` disables cancellation.
|
|
/// - `event_fn`: optional progress/event callback invoked by the prefetcher.
|
|
pub fn build_iso_pipeline<S: SectorSource + Send + 'static>(
|
|
reader: S,
|
|
title: DiscTitle,
|
|
keys: crate::decrypt::DecryptKeys,
|
|
batch_sectors: u16,
|
|
format: ContentFormat,
|
|
halt: Option<crate::halt::Halt>,
|
|
event_fn: Option<crate::sector::prefetched::EventFn>,
|
|
) -> io::Result<PipelinedPesStream> {
|
|
let extents = title.extents.clone();
|
|
// Unit alignment is an AACS concept: AACS decrypts whole 6144-byte (3-sector)
|
|
// units, so the producer must hand the decrypt step 3-sector-aligned batches.
|
|
// CSS (DVD) and unencrypted content decrypt per 2048-byte sector — forcing
|
|
// 3-sector alignment there rejects any extent whose sector count isn't a
|
|
// multiple of 3 (DVD IFO cells routinely aren't) with ExtentNotUnitAligned.
|
|
let unit_align: u16 = match &keys {
|
|
crate::decrypt::DecryptKeys::Aacs { .. } => 3,
|
|
_ => 1,
|
|
};
|
|
let decrypting =
|
|
crate::sector::DecryptingSectorSource::new(Box::new(reader) as Box<dyn SectorSource>, keys);
|
|
let prefetched = crate::sector::PrefetchedSectorSource::new_with_events(
|
|
decrypting,
|
|
extents,
|
|
batch_sectors,
|
|
unit_align,
|
|
halt.clone(),
|
|
event_fn,
|
|
)
|
|
.map_err(|e| -> io::Error { e.into() })?;
|
|
let (rx, recycle_tx, shell) = prefetched.into_channels();
|
|
|
|
let (parsers, pid_to_track, ts, ps) = build_demux_state(&title, format);
|
|
let (demux_thread, demux_rx) =
|
|
super::demux_thread::DemuxThread::spawn_zero_copy(rx, recycle_tx, shell, halt, ts, ps)
|
|
.map_err(|e| -> io::Error { e.into() })?;
|
|
Ok(PipelinedPesStream::new(
|
|
demux_thread,
|
|
demux_rx,
|
|
title,
|
|
parsers,
|
|
pid_to_track,
|
|
))
|
|
}
|
|
|
|
/// Assemble the M2TS file mux pipeline (read → demux → parse) for a
|
|
/// byte-stream reader. Scans the head for FMKV header or PMT/PAT,
|
|
/// rebuilds the title metadata, then wraps a chained reader (head +
|
|
/// remainder) in a `BytePrefetcher` feeding the demux + parse
|
|
/// threads.
|
|
fn build_m2ts_pipeline<R: std::io::Read + Send + 'static>(
|
|
mut reader: R,
|
|
) -> io::Result<PipelinedPesStream> {
|
|
use super::meta;
|
|
use std::io::Read;
|
|
|
|
const M2TS_SCAN_BYTES: usize = 1024 * 1024;
|
|
let mut head = vec![0u8; M2TS_SCAN_BYTES];
|
|
let head_len = {
|
|
let mut filled = 0;
|
|
while filled < head.len() {
|
|
match reader.read(&mut head[filled..])? {
|
|
0 => break,
|
|
n => filled += n,
|
|
}
|
|
}
|
|
filled
|
|
};
|
|
head.truncate(head_len);
|
|
|
|
// Try FMKV metadata header first; fall back to PMT scan. Only a
|
|
// genuine absence of the FMKV magic (`Ok(None)`) falls through to
|
|
// the PMT path — a corrupt/truncated FMKV header (`Err`) propagates
|
|
// instead of being misreported as a PMT-derived title or NoStreams.
|
|
let mut cursor = io::Cursor::new(&head);
|
|
let (title, head_consumed) = match meta::read_header(&mut cursor)? {
|
|
Some(m) => {
|
|
let t = m.to_title();
|
|
// Guard the FMKV branch the same way the ISO and PMT paths
|
|
// do: a header carrying zero streams yields an empty title
|
|
// that would mux nothing — surface NoStreams instead.
|
|
if t.streams.is_empty() {
|
|
return Err(crate::error::Error::NoStreams.into());
|
|
}
|
|
(t, cursor.position() as usize)
|
|
}
|
|
None => {
|
|
let streams = super::ts::scan_streams(&head)
|
|
.ok_or_else(|| -> io::Error { crate::error::Error::NoStreams.into() })?;
|
|
let t = DiscTitle {
|
|
duration_secs: 0.0,
|
|
streams,
|
|
..DiscTitle::empty()
|
|
};
|
|
(t, 0)
|
|
}
|
|
};
|
|
|
|
// Chain: any un-consumed head bytes + the remainder of the
|
|
// reader. The demuxer sees a contiguous M2TS byte stream.
|
|
let remaining_head = head[head_consumed..].to_vec();
|
|
let chained: Box<dyn Read + Send> = Box::new(io::Cursor::new(remaining_head).chain(reader));
|
|
|
|
let prefetcher = crate::io::byte_prefetcher::BytePrefetcher::new(
|
|
chained,
|
|
crate::io::byte_prefetcher::DEFAULT_CHUNK_BYTES,
|
|
None,
|
|
)?;
|
|
let (rx, recycle_tx, shell) = prefetcher.into_channels();
|
|
|
|
let (parsers, pid_to_track, ts, ps) = build_demux_state(&title, ContentFormat::BdTs);
|
|
let (demux_thread, demux_rx) =
|
|
super::demux_thread::DemuxThread::spawn_zero_copy(rx, recycle_tx, shell, None, ts, ps)
|
|
.map_err(|e| -> io::Error { e.into() })?;
|
|
Ok(PipelinedPesStream::new(
|
|
demux_thread,
|
|
demux_rx,
|
|
title,
|
|
parsers,
|
|
pid_to_track,
|
|
))
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::aacs_key_missing;
|
|
use super::css_key_missing;
|
|
use super::validate_network_addr;
|
|
use super::{build_demux_state, build_iso_pipeline, input, output};
|
|
use crate::decrypt::DecryptKeys;
|
|
use crate::disc::{ContentFormat, DiscTitle, Extent};
|
|
use crate::pes::Stream as _;
|
|
use crate::sector::SectorSource;
|
|
|
|
#[test]
|
|
fn validate_network_addr_rejects_portless() {
|
|
// Empty, bare IPv4, and bare IPv6 (which contains ':') must all fail.
|
|
assert!(validate_network_addr("").is_err());
|
|
assert!(validate_network_addr("127.0.0.1").is_err());
|
|
assert!(validate_network_addr("::1").is_err());
|
|
assert!(validate_network_addr("2001:db8::1").is_err());
|
|
// host:port and ip:port forms pass.
|
|
assert!(validate_network_addr("127.0.0.1:9000").is_ok());
|
|
assert!(validate_network_addr("host:9000").is_ok());
|
|
}
|
|
|
|
#[test]
|
|
fn validate_network_addr_requires_numeric_port() {
|
|
// An empty port (`host:`) and a non-numeric port (`host:abc`) both
|
|
// contain ':' but are NOT valid host:port — must be rejected.
|
|
assert!(validate_network_addr("host:").is_err());
|
|
assert!(validate_network_addr("127.0.0.1:").is_err());
|
|
assert!(validate_network_addr("host:abc").is_err());
|
|
assert!(validate_network_addr("host:99x").is_err());
|
|
// Out-of-u16-range port is rejected (parse::<u16> fails).
|
|
assert!(validate_network_addr("host:70000").is_err());
|
|
// Bracketed IPv6 with a valid port passes; split on the LAST ':' so the
|
|
// address colons are not mistaken for the port separator.
|
|
assert!(validate_network_addr("[2001:db8::1]:9000").is_ok());
|
|
// Bracketed IPv6 WITHOUT a port is rejected (port substring not a u16).
|
|
assert!(validate_network_addr("[2001:db8::1]").is_err());
|
|
// Valid numeric port (incl. 0 and max u16) passes.
|
|
assert!(validate_network_addr("host:0").is_ok());
|
|
assert!(validate_network_addr("host:65535").is_ok());
|
|
}
|
|
|
|
fn aacs_keys() -> DecryptKeys {
|
|
DecryptKeys::Aacs {
|
|
unit_keys: vec![(1, [0x11u8; 16])],
|
|
read_data_key: None,
|
|
}
|
|
}
|
|
|
|
fn css_keys() -> DecryptKeys {
|
|
DecryptKeys::Css {
|
|
title_key: [0u8; 5],
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn encrypted_no_key_aborts() {
|
|
// AACS disc, decryption requested, resolver yielded no key → abort.
|
|
assert!(aacs_key_missing(false, true, &DecryptKeys::None));
|
|
}
|
|
|
|
#[test]
|
|
fn encrypted_with_key_proceeds() {
|
|
// AACS disc with a usable key → proceed.
|
|
assert!(!aacs_key_missing(false, true, &aacs_keys()));
|
|
}
|
|
|
|
#[test]
|
|
fn not_encrypted_proceeds() {
|
|
// No AACS state: unencrypted (None keys) and CSS (Css keys) both OK.
|
|
assert!(!aacs_key_missing(false, false, &DecryptKeys::None));
|
|
assert!(!aacs_key_missing(false, false, &css_keys()));
|
|
}
|
|
|
|
#[test]
|
|
fn css_no_key_aborts() {
|
|
// CSS disc, decryption requested, per-title resolver yielded None
|
|
// (e.g. an un-re-crackable VTS) → abort instead of muxing ciphertext.
|
|
assert!(css_key_missing(false, true, &DecryptKeys::None));
|
|
}
|
|
|
|
#[test]
|
|
fn css_with_key_proceeds() {
|
|
// CSS disc with a resolved title key → proceed.
|
|
assert!(!css_key_missing(false, true, &css_keys()));
|
|
}
|
|
|
|
#[test]
|
|
fn css_raw_never_aborts() {
|
|
// --raw skips decryption: never abort even with no CSS key.
|
|
assert!(!css_key_missing(true, true, &DecryptKeys::None));
|
|
}
|
|
|
|
#[test]
|
|
fn css_guard_ignores_non_css() {
|
|
// No CSS state (AACS / unencrypted): the CSS guard never fires.
|
|
assert!(!css_key_missing(false, false, &DecryptKeys::None));
|
|
}
|
|
|
|
#[test]
|
|
fn raw_never_aborts() {
|
|
// --raw skips decryption — must never hit the no-key abort, even on an
|
|
// AACS disc with no key resolved.
|
|
assert!(!aacs_key_missing(true, true, &DecryptKeys::None));
|
|
assert!(!aacs_key_missing(true, true, &aacs_keys()));
|
|
assert!(!aacs_key_missing(true, false, &DecryptKeys::None));
|
|
}
|
|
|
|
// ── input()/output() routing + validation ─────────────────────────────
|
|
|
|
// Box<dyn Stream> is not Debug, so unwrap_err() won't compile. These
|
|
// helpers extract the io::ErrorKind from the Err arm (and panic on Ok).
|
|
fn input_err_kind(url: &str) -> std::io::ErrorKind {
|
|
match input(url, &Default::default()) {
|
|
Ok(_) => panic!("expected input({url}) to error"),
|
|
Err(e) => e.kind(),
|
|
}
|
|
}
|
|
fn output_err_kind(url: &str, t: &DiscTitle) -> std::io::ErrorKind {
|
|
match output(url, t) {
|
|
Ok(_) => panic!("expected output({url}) to error"),
|
|
Err(e) => e.kind(),
|
|
}
|
|
}
|
|
|
|
/// The resolver doc table marks disc:// as input-only via the
|
|
/// `Drive::open` path — input("disc://") must surface DiscUrlNotDirect
|
|
/// (E9009 → Unsupported), never attempt to open a stream.
|
|
#[test]
|
|
fn input_disc_url_is_not_direct() {
|
|
assert_eq!(input_err_kind("disc://"), std::io::ErrorKind::Unsupported);
|
|
}
|
|
|
|
/// null:// is write-only per the table — input() must reject it with
|
|
/// StreamWriteOnly (E9001 → Unsupported), not hand back a dead reader.
|
|
#[test]
|
|
fn input_null_url_is_write_only() {
|
|
assert_eq!(input_err_kind("null://"), std::io::ErrorKind::Unsupported);
|
|
}
|
|
|
|
/// An unrecognized scheme on input() must surface StreamUrlInvalid
|
|
/// (E9002 → InvalidInput), carrying the raw URL — never silently succeed.
|
|
#[test]
|
|
fn input_unknown_url_is_invalid() {
|
|
assert_eq!(
|
|
input_err_kind("ftp://host/x"),
|
|
std::io::ErrorKind::InvalidInput
|
|
);
|
|
}
|
|
|
|
/// iso:// with an empty path must fail validate_file_path with
|
|
/// StreamUrlMissingPath (E9003 → InvalidInput) before any File::open.
|
|
#[test]
|
|
fn input_iso_empty_path_missing_path_error() {
|
|
assert_eq!(input_err_kind("iso://"), std::io::ErrorKind::InvalidInput);
|
|
}
|
|
|
|
/// disc:// and iso:// are input-only sources — output() to either must
|
|
/// return StreamReadOnly (E9000 → Unsupported).
|
|
#[test]
|
|
fn output_disc_and_iso_are_read_only() {
|
|
let t = DiscTitle::empty();
|
|
assert_eq!(
|
|
output_err_kind("disc://", &t),
|
|
std::io::ErrorKind::Unsupported
|
|
);
|
|
assert_eq!(
|
|
output_err_kind("iso://x.iso", &t),
|
|
std::io::ErrorKind::Unsupported
|
|
);
|
|
}
|
|
|
|
/// output() to an unknown scheme must surface StreamUrlInvalid
|
|
/// (E9002 → InvalidInput).
|
|
#[test]
|
|
fn output_unknown_url_is_invalid() {
|
|
let t = DiscTitle::empty();
|
|
assert_eq!(
|
|
output_err_kind("gopher://x", &t),
|
|
std::io::ErrorKind::InvalidInput
|
|
);
|
|
}
|
|
|
|
/// output() to network:// with no port must fail validation
|
|
/// (StreamUrlMissingPort, E9004 → InvalidInput) before any TcpStream.
|
|
#[test]
|
|
fn output_network_missing_port_invalid() {
|
|
let t = DiscTitle::empty();
|
|
assert_eq!(
|
|
output_err_kind("network://127.0.0.1", &t),
|
|
std::io::ErrorKind::InvalidInput
|
|
);
|
|
}
|
|
|
|
/// mkv:// with an empty path must fail validate_file_path
|
|
/// (StreamUrlMissingPath) on the output side, before WritebackFile.
|
|
#[test]
|
|
fn output_mkv_empty_path_missing_path_error() {
|
|
let t = DiscTitle::empty();
|
|
assert_eq!(
|
|
output_err_kind("mkv://", &t),
|
|
std::io::ErrorKind::InvalidInput
|
|
);
|
|
}
|
|
|
|
// ── build_demux_state: parser/PID table + demuxer selection ────────────
|
|
|
|
fn aac_audio_title(pid: u16) -> DiscTitle {
|
|
use crate::disc::{AudioChannels, AudioStream, Codec, LabelPurpose, SampleRate, Stream};
|
|
let mut t = DiscTitle::empty();
|
|
t.streams.push(Stream::Audio(AudioStream {
|
|
pid,
|
|
codec: Codec::Aac, // → all-keyframe PassthroughParser (1 PES = 1 frame)
|
|
channels: AudioChannels::Stereo,
|
|
language: "eng".into(),
|
|
sample_rate: SampleRate::S48,
|
|
secondary: false,
|
|
purpose: LabelPurpose::Normal,
|
|
label: String::new(),
|
|
}));
|
|
t
|
|
}
|
|
|
|
/// BdTs format must build a TsDemuxer (Some(ts), None(ps)) when there is
|
|
/// at least one PID, and one parser + pid_to_track entry per stream
|
|
/// keyed by the stream's own PID. (Mis-keying here is exactly the class
|
|
/// of bug that mis-routes PES into the wrong codec parser.)
|
|
#[test]
|
|
fn build_demux_state_bdts_builds_ts_demuxer_and_pid_table() {
|
|
let t = aac_audio_title(0x1100);
|
|
let (parsers, pid_to_track, ts, ps) = build_demux_state(&t, ContentFormat::BdTs);
|
|
assert_eq!(parsers.len(), 1);
|
|
assert_eq!(parsers[0].0, 0x1100, "parser keyed by the stream PID");
|
|
assert_eq!(pid_to_track, vec![(0x1100u16, 0usize)]);
|
|
assert!(ts.is_some(), "BdTs → TsDemuxer");
|
|
assert!(ps.is_none());
|
|
}
|
|
|
|
/// MpegPs format must build a PsDemuxer (None(ts), Some(ps)) regardless
|
|
/// of PIDs — DVD program streams demux via the PS path.
|
|
#[test]
|
|
fn build_demux_state_mpegps_builds_ps_demuxer() {
|
|
let t = aac_audio_title(0xBD80);
|
|
let (_parsers, _p2t, ts, ps) = build_demux_state(&t, ContentFormat::MpegPs);
|
|
assert!(ts.is_none());
|
|
assert!(ps.is_some(), "MpegPs → PsDemuxer");
|
|
}
|
|
|
|
/// An empty BdTs title (no streams) must NOT construct a TsDemuxer —
|
|
/// `TsDemuxer::new(&[])` is pointless, and the builder special-cases
|
|
/// empty PIDs to (None, None). pid_to_track/parsers also empty.
|
|
#[test]
|
|
fn build_demux_state_bdts_empty_streams_builds_no_demuxer() {
|
|
let t = DiscTitle::empty();
|
|
let (parsers, pid_to_track, ts, ps) = build_demux_state(&t, ContentFormat::BdTs);
|
|
assert!(parsers.is_empty());
|
|
assert!(pid_to_track.is_empty());
|
|
assert!(ts.is_none(), "no PIDs → no TsDemuxer");
|
|
assert!(ps.is_none());
|
|
}
|
|
|
|
// ── build_iso_pipeline: end-to-end highway wiring ──────────────────────
|
|
|
|
/// An in-memory SectorSource that serves a fixed byte image. Reads beyond
|
|
/// the image return zero-filled sectors (the prefetcher only reads within
|
|
/// the title's extents, so this is never hit in these tests).
|
|
struct MemSource {
|
|
data: Vec<u8>,
|
|
}
|
|
impl SectorSource for MemSource {
|
|
fn capacity_sectors(&self) -> u32 {
|
|
(self.data.len() / 2048) as u32
|
|
}
|
|
fn read_sectors(
|
|
&mut self,
|
|
lba: u32,
|
|
count: u16,
|
|
buf: &mut [u8],
|
|
_recovery: bool,
|
|
) -> crate::error::Result<usize> {
|
|
let start = lba as usize * 2048;
|
|
let want = count as usize * 2048;
|
|
for (i, b) in buf[..want].iter_mut().enumerate() {
|
|
*b = self.data.get(start + i).copied().unwrap_or(0);
|
|
}
|
|
Ok(want)
|
|
}
|
|
}
|
|
|
|
/// Build a 192-byte BD-TS data packet on `pid` carrying `payload` as the
|
|
/// TS payload (payload-only adaptation). Layout: 4-byte TP_extra_header
|
|
/// (zeros) + 188-byte TS packet (sync 0x47, PID, PUSI, AFC=0b01).
|
|
/// Mirrors the BD-TS framing in ts.rs.
|
|
fn bdts_data_packet(pid: u16, pusi: bool, payload: &[u8]) -> [u8; 192] {
|
|
let mut pkt = [0u8; 192];
|
|
pkt[4] = 0x47; // sync byte
|
|
pkt[5] = ((pid >> 8) as u8) & 0x1F;
|
|
if pusi {
|
|
pkt[5] |= 0x40; // PUSI
|
|
}
|
|
pkt[6] = (pid & 0xFF) as u8;
|
|
pkt[7] = 0x10; // adaptation_field_control = 0b01 (payload only)
|
|
let room = 184; // 188 - 4-byte TS header
|
|
let n = payload.len().min(room);
|
|
pkt[8..8 + n].copy_from_slice(&payload[..n]);
|
|
pkt
|
|
}
|
|
|
|
/// A complete audio PES (stream_id 0xC0) with no PTS, carrying `es` as the
|
|
/// elementary-stream payload. Layout per ISO 13818-1: 00 00 01 C0
|
|
/// [len:2] [0x80 flags1] [0x00 flags2] [0x00 header_data_len] [es...].
|
|
fn audio_pes(es: &[u8]) -> Vec<u8> {
|
|
let mut v = vec![0x00, 0x00, 0x01, 0xC0];
|
|
let len = (3 + es.len()) as u16; // flags(2)+hdl(1)+es
|
|
v.extend_from_slice(&len.to_be_bytes());
|
|
v.extend_from_slice(&[0x80, 0x00, 0x00]);
|
|
v.extend_from_slice(es);
|
|
v
|
|
}
|
|
|
|
/// Empty extents → the producer thread exits immediately, the demux
|
|
/// thread sees a clean channel close and emits the Eof sentinel, and the
|
|
/// PipelinedPesStream returns Ok(None) on the first read. The highway must
|
|
/// terminate cleanly (no panic, no hang) when there is nothing to read.
|
|
#[test]
|
|
fn build_iso_pipeline_empty_extents_clean_eof() {
|
|
let title = aac_audio_title(0x1100); // extents empty by default
|
|
let mut stream = build_iso_pipeline(
|
|
MemSource { data: Vec::new() },
|
|
title,
|
|
DecryptKeys::None,
|
|
8192,
|
|
ContentFormat::BdTs,
|
|
None,
|
|
None,
|
|
)
|
|
.expect("pipeline builds");
|
|
let first = stream.read().expect("read must not error on clean EOF");
|
|
assert!(
|
|
first.is_none(),
|
|
"no extents → immediate clean end-of-stream"
|
|
);
|
|
// Idempotent: a second read past EOF is still Ok(None), never an error.
|
|
assert!(stream.read().unwrap().is_none());
|
|
}
|
|
|
|
/// End-to-end: one BD-TS packet carrying a complete audio PES flows
|
|
/// read → decrypt(passthrough) → TS demux → codec parse → one PesFrame.
|
|
/// Proves the full highway wiring delivers the ES payload intact and
|
|
/// reaches a clean EOF afterward (never silently truncating the frame).
|
|
#[test]
|
|
fn build_iso_pipeline_delivers_one_frame_then_eof() {
|
|
let es = [0xDE, 0xAD, 0xBE, 0xEF, 0x11, 0x22];
|
|
let pes = audio_pes(&es);
|
|
let pkt = bdts_data_packet(0x1100, true, &pes);
|
|
// One 2048-byte sector holding the 192-byte packet (rest zero — the
|
|
// demuxer skips non-sync packets). Extent = 3 sectors (one AACS unit,
|
|
// the prefetcher's alignment requirement).
|
|
let mut data = vec![0u8; 3 * 2048];
|
|
data[..192].copy_from_slice(&pkt);
|
|
|
|
let mut title = aac_audio_title(0x1100);
|
|
title.extents = vec![Extent {
|
|
start_lba: 0,
|
|
sector_count: 3,
|
|
}];
|
|
|
|
let mut stream = build_iso_pipeline(
|
|
MemSource { data },
|
|
title,
|
|
DecryptKeys::None,
|
|
8192,
|
|
ContentFormat::BdTs,
|
|
None,
|
|
None,
|
|
)
|
|
.expect("pipeline builds");
|
|
|
|
let frame = stream
|
|
.read()
|
|
.expect("read ok")
|
|
.expect("one frame emitted from the single PES");
|
|
// PassthroughParser routes the audio stream (PID 0x1100) to track 0.
|
|
assert_eq!(frame.track, 0);
|
|
// The TS PesAssembler delivers every payload byte AFTER the 9-byte PES
|
|
// header to the end of the 184-byte TS payload region (the bounded
|
|
// PES_packet_length is not used to trim within a single packet — the
|
|
// PES is closed by the next PUSI or by flush at EOF). So the frame is
|
|
// the ES bytes followed by the packet's zero padding: total = 184 - 9.
|
|
assert_eq!(
|
|
frame.data.len(),
|
|
184 - 9,
|
|
"frame spans the full TS payload after the PES header"
|
|
);
|
|
// Truncation guard: the ES bytes lead the frame, in order, unaltered —
|
|
// the highway must never drop or reorder the elementary-stream prefix.
|
|
assert_eq!(
|
|
&frame.data[..es.len()],
|
|
&es[..],
|
|
"ES payload prefix delivered intact and in order"
|
|
);
|
|
assert!(
|
|
frame.data[es.len()..].iter().all(|&b| b == 0),
|
|
"remainder is the packet's zero padding, not foreign data"
|
|
);
|
|
// After the single frame the stream reaches a clean EOF.
|
|
assert!(
|
|
stream.read().unwrap().is_none(),
|
|
"clean EOF after the frame"
|
|
);
|
|
}
|
|
|
|
/// build_iso_pipeline with batch_sectors = 0 must fail fast (the
|
|
/// prefetcher rejects a zero batch as a programming error — a zero batch
|
|
/// would spin the producer forever). Surfaced as an io error, not a hang.
|
|
#[test]
|
|
fn build_iso_pipeline_zero_batch_rejected() {
|
|
let title = aac_audio_title(0x1100);
|
|
let res = build_iso_pipeline(
|
|
MemSource { data: Vec::new() },
|
|
title,
|
|
DecryptKeys::None,
|
|
0,
|
|
ContentFormat::BdTs,
|
|
None,
|
|
None,
|
|
);
|
|
assert!(res.is_err(), "zero batch_sectors must be rejected");
|
|
}
|
|
}
|