trav
a50c39fa43
QMediaPlayer.setSource() no-ops on an unchanged URL, so replaying the track that was already the loaded source never re-fired LoadedMedia and the armed _pending_start_ms was silently dropped — a freshly edited start time appeared to save but playback began at 0:00. _load_current now detects the unchanged source and stop()+seeks directly (a forced clear+reload was tried and races the FFmpeg backend, snapping the seek back to 0). previous()-restart likewise rewinds to the custom start time instead of 0:00. Verified live via an offscreen GUI harness: replay-while-playing, replay-after-EndOfMedia, and cleared-start-time replay. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
123 lines
4.9 KiB
Python
123 lines
4.9 KiB
Python
"""Round 22: start-time fixes in the player.
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Editing a track's start time saved fine but replaying the *already loaded*
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track ignored it: QMediaPlayer.setSource() no-ops on an unchanged URL, so the
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LoadedMedia status change that consumes the armed start time never re-fired
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(and forcing a clear+reload races the FFmpeg backend, which snaps the seek
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back to 0). _load_current now detects the unchanged source and seeks directly
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— the media is already loaded. Also, "previous"-restart now rewinds to the
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custom start time instead of 0:00.
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"""
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from unittest.mock import MagicMock, patch
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from PyQt6.QtCore import QUrl
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from lintunes.models import Library, Track
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from lintunes import player as player_module
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from lintunes.player import Player, RESTART_THRESHOLD_MS
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def _track(tid, **kw):
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return Track(track_id=tid, name=kw.pop("name", f"Track {tid}"), **kw)
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def _player(qapp, tracks):
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library = Library()
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for t in tracks:
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library.tracks[t.track_id] = t
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manager = MagicMock()
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manager.library = library
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with patch.multiple(
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player_module,
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QMediaPlayer=MagicMock(),
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QAudioOutput=MagicMock(),
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QAudioBufferOutput=MagicMock(),
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QMediaDevices=MagicMock(),
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):
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player = Player(manager)
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return player, manager
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class TestSameSourceReplay:
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def test_unchanged_url_seeks_to_freshly_edited_start(self, qapp, tmp_path):
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(tmp_path / "a.mp3").write_bytes(b"x")
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loc = str(tmp_path / "a.mp3")
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track = _track(1, location=loc, total_time=200_000)
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player, _ = _player(qapp, [track])
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url = QUrl.fromLocalFile(loc)
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player.play_queue([1], 0) # first load: source was empty, plain set
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assert player._media.setSource.call_args_list[-1].args == (url,)
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# The track is now the loaded source; the user edits its start time
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# and plays it again. The media is already loaded, so the player must
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# seek directly instead of waiting for a LoadedMedia that never comes.
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player._media.source.return_value = url
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track.start_time = 30_000
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player._media.setSource.reset_mock()
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player.play_queue([1], 0)
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player._media.setSource.assert_not_called()
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player._media.stop.assert_called()
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player._media.setPosition.assert_called_with(30_000)
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assert player._pending_start_ms == 0 # consumed
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player._media.play.assert_called()
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def test_unchanged_url_without_start_time_restarts_at_zero(
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self, qapp, tmp_path):
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(tmp_path / "a.mp3").write_bytes(b"x")
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loc = str(tmp_path / "a.mp3")
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track = _track(1, location=loc, total_time=200_000)
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player, _ = _player(qapp, [track])
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player.play_queue([1], 0)
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player._media.source.return_value = QUrl.fromLocalFile(loc)
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player._media.setPosition.reset_mock()
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player.play_queue([1], 0)
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# stop() rewinds to 0; no seek should be issued.
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player._media.stop.assert_called()
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player._media.setPosition.assert_not_called()
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def test_different_url_loads_via_setsource(self, qapp, tmp_path):
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for name in ("a.mp3", "b.mp3"):
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(tmp_path / name).write_bytes(b"x")
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t1 = _track(1, location=str(tmp_path / "a.mp3"), total_time=200_000)
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t2 = _track(2, location=str(tmp_path / "b.mp3"),
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total_time=200_000, start_time=30_000)
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player, _ = _player(qapp, [t1, t2])
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player._media.source.return_value = QUrl.fromLocalFile(t1.location)
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player.play_queue([1, 2], 1) # loading b.mp3 while a.mp3 is the source
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assert [c.args for c in player._media.setSource.call_args_list] \
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== [(QUrl.fromLocalFile(t2.location),)]
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# New source: the seek waits for LoadedMedia as before.
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assert player._pending_start_ms == 30_000
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player._on_media_status(player_module.QMediaPlayer.MediaStatus.LoadedMedia)
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player._media.setPosition.assert_called_with(30_000)
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assert player._pending_start_ms == 0
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class TestPreviousRestart:
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def test_restart_seeks_to_custom_start_time(self, qapp, tmp_path):
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(tmp_path / "a.mp3").write_bytes(b"x")
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track = _track(1, location=str(tmp_path / "a.mp3"),
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total_time=200_000, start_time=30_000)
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player, _ = _player(qapp, [track])
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player.play_queue([1], 0)
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player._media.position.return_value = RESTART_THRESHOLD_MS + 1
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player.previous()
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player._media.setPosition.assert_called_with(30_000)
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def test_restart_without_start_time_seeks_to_zero(self, qapp, tmp_path):
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(tmp_path / "a.mp3").write_bytes(b"x")
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track = _track(1, location=str(tmp_path / "a.mp3"), total_time=200_000)
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player, _ = _player(qapp, [track])
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player.play_queue([1], 0)
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player._media.position.return_value = RESTART_THRESHOLD_MS + 1
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player.previous()
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player._media.setPosition.assert_called_with(0)
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