Struct ContentReader 

pub struct ContentReader<'a> {
    pub errors: u32,
    /* private fields */
}

A reader that reads m2ts content, decrypting transparently if needed.

Adaptive read strategy:

• Starts at max batch size (510 sectors ≈ 1MB) and full disc speed
• On read error: halves batch size, brief pause for drive recovery
• On repeated errors: reduces disc spin speed (scratched region)
• On success streak: ramps batch back up, then restores disc speed
• At minimum batch + still failing: retries once, then skips + zero-fills

Fields

errors: u32

Current speed tier index (0 = max, higher = slower) Last time maintain_speed was called Total read errors encountered

Implementations

impl<'a> ContentReader<'a>

pub fn total_bytes(&self) -> u64

Total bytes across all extents (for progress display).

pub fn read_unit(&mut self) -> Result<Option<Vec<u8>>>

Read the next aligned unit (6144 bytes). Automatically decrypted if AACS keys are available. Returns None when all extents are exhausted.

pub fn read_batch(&mut self) -> Result<Option<&[u8]>>

Read the next batch of aligned units, decrypted in-place. Returns the decrypted data as a single contiguous slice. More efficient than read_unit() – one write_all() per batch instead of per unit. Returns None when all extents are exhausted.