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| """Map LLM clip timing (segment + trim + hook) to one ffmpeg source window. | |
| ``humeo_core.primitives.compile`` already cuts with ``-ss`` / ``-t`` from ``Clip``; | |
| this module is the single place that turns trim/hook fields into concrete bounds. | |
| """ | |
| from __future__ import annotations | |
| from humeo_core.schemas import Clip | |
| def effective_export_bounds(clip: Clip) -> tuple[float, float]: | |
| """Return ``(start_sec, end_sec)`` on the source timeline for the exported short. | |
| 1. **Trim** narrows ``[start_time_sec, end_time_sec]``. | |
| 2. ``render_spans`` override contiguous trim export when present. | |
| 2. Hook fields remain metadata and do not change the export window. | |
| """ | |
| if clip.render_spans: | |
| return clip.render_spans[0].start_time_sec, clip.render_spans[-1].end_time_sec | |
| s0 = clip.start_time_sec | |
| s1 = clip.end_time_sec | |
| t_lo = s0 + clip.trim_start_sec | |
| t_hi = s1 - clip.trim_end_sec | |
| if t_hi <= t_lo: | |
| t_lo, t_hi = s0, s1 | |
| if t_hi <= t_lo: | |
| t_lo, t_hi = s0, s1 | |
| return t_lo, t_hi | |
| def clip_for_render(clip: Clip) -> Clip: | |
| """Copy with ``start``/``end`` set to the actual cut; trim/hook cleared.""" | |
| t0, t1 = effective_export_bounds(clip) | |
| return clip.model_copy( | |
| update={ | |
| "start_time_sec": t0, | |
| "end_time_sec": t1, | |
| "trim_start_sec": 0.0, | |
| "trim_end_sec": 0.0, | |
| "hook_start_sec": None, | |
| "hook_end_sec": None, | |
| } | |
| ) | |