Module tc_subtitle_sync 

Subtitle-to-timecode synchronization utilities.

Provides tools for aligning subtitle cue timestamps with SMPTE timecodes, applying linear and offset corrections, and detecting drift between subtitle streams and the master timecode.

Structs

SubtitleCue

A single subtitle cue with in/out timecodes.

Functions

apply_frame_offset

Offset correction: shift all cues by a fixed number of frames.

apply_linear_stretch

Linear time-stretch: scale all cue times relative to anchor_frame by factor.

compute_average_drift

Compute the average drift (in frames) between subtitle cue-in times and a set of expected reference timecodes.

find_overlaps

Detect overlapping cues and return pairs of indices.

sort_cues_by_in

Sort a list of cues by their in-timecode.