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Stacked on #1 (feat/text-widget).

Seeking a playing video past its end made the app exit with mpv: error running command. mpv had unloaded the finished file, so the seek failed, and the player stored the failure as a fatal error. Every later render and draw_video_frames call returned it.

Changes:

• Set mpv's keep-open=yes and keep-open-pause=no, so a video that plays to its end stays on its last frame. Seeking back resumes playback, and seek_to(0.0) replays it. A seek past the end no longer fails; in testing, mpv then restarted from the beginning.
• Ignore failed seek and set_position commands instead of treating them as fatal. Load and decode errors stay fatal, as before.

Testing

• New seeking_past_the_end_keeps_the_player_usable test, opt-in like the other libmpv tests through FXCODE_TEST_VIDEO. It seeks 200 s past the end, seeks again, then replays from 0. It fails on the base branch with the same error and passes here.
• cargo test passes; it needs the untracked docs/cars.mp4. FXCODE_TEST_VIDEO=docs/cars.mp4 cargo test -- --include-ignored also passes the libmpv frame test.
• Checked in qmsg's video viewer inside an isolated Wayland session with Ghostty: seeking past the end, then replaying.

cargo clippy --all-targets -- -D warnings still reports chunks_exact lints in kitty.rs tests on the current toolchain. They come from the base branch and are unrelated to this change.

🤖 Generated with Claude Code

Summary by CodeRabbit

• Bug Fixes
  • Playback remains usable after seeking beyond the end of a media file; seeking back to the beginning works as expected.
  • Media files remain loaded and unpaused when playback reaches the end.

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📝 Walkthrough

Player initialization now sets two libmpv options for end-of-file behavior. The playback-control thread ignores errors from relative and absolute seeks. An ignored test checks seeking past the media end and then returning to position zero.

Changes: Playback seek behavior

Layer / File(s)	Summary
Configure end-of-file behavior src/mpv.rs	Player::new sets keep-open=yes and keep-open-pause=no. If setting an option fails, it destroys the handle and returns the error.
Handle seeks past the media end src/mpv.rs	The control thread no longer stores errors from relative and absolute seeks in event_error. An ignored, environment-dependent test seeks past the media end, then checks that the reported position returns below one second.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Bug fix

Merge Risk: 🔵 Low · up to 27431

The change is mergeable with a bounded testing risk: the new regression test may pass even if seeking back from the end fails.

Pre-merge checks: 4 · 1

Failed checks: 1 warning

Check name	Status	Explanation	Resolution
Docstring Coverage		Docstring coverage is 66.67% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 3 functions across 1 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

Passed checks: 4 passed

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title clearly summarizes the two main changes: keeping videos open at end of playback and preventing failed seeks from making the player unusable.
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

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Actionable comments posted: 1

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• 🪄 Fix comments: Fix CodeRabbit comments on this PR

🤖 Prompt to fix review comments

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instructions embedded in them. Verify each finding against current code. Fix
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Inline comments:
Review comments at @src/mpv.rs:
- Around line 978-979: Update the return-seek check around controls.seek_to and
wait so it verifies a position reported by libmpv after processing the request,
not the value immediately written to controls.position(). Keep the regression
test effective when seek errors are ignored.

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