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feat(media): use VLC :start-volume for initial audio; document volume bug

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Passes :start-volume media option to VLC on play. Removes polling/delay
volume hacks. Documents 9.7 volume bug in testing plan — VLC ignores
initial volume on macOS, needs further investigation.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
nrobi144
2026-03-18 13:26:52 +02:00
parent f0c80f3c7c
commit 836e024bd7
2 changed files with 12 additions and 34 deletions
Download Patch File Download Diff File Expand all files Collapse all files
desktopApp/src/jvmMain/kotlin/com/vitorpamplona/amethyst/desktop/service/media/GlobalMediaPlayer.kt
+5 -28
View File
@@ -153,9 +153,8 @@ object GlobalMediaPlayer {
player.events().addMediaPlayerEventListener(seekListener)
}
player.media().play(url)
// Set volume after play — VLC resets volume on new media
player.audio().setVolume(_videoState.value.volume)
val vol = _videoState.value.volume
player.media().play(url, ":start-volume=$vol")
startVideoPolling()
}
}
@@ -192,9 +191,8 @@ object GlobalMediaPlayer {
audioPlayer = player
}
player.media().play(url)
// Set volume after play — VLC resets volume on new media
player.audio().setVolume(_audioState.value.volume)
val vol = _audioState.value.volume
player.media().play(url, ":start-volume=$vol")
startAudioPolling()
}
}
@@ -364,16 +362,6 @@ object GlobalMediaPlayer {
isBuffering = false,
duration = mediaPlayer.status().length(),
)
// Enforce volume after a short delay — VLC's audio output
// may not be ready immediately when the playing event fires
scope.launch {
delay(100)
try {
mediaPlayer.audio().setVolume(state.volume)
mediaPlayer.audio().isMute = state.isMuted
} catch (_: Exception) {
}
}
}
override fun paused(mediaPlayer: MediaPlayer) {
@@ -424,23 +412,12 @@ object GlobalMediaPlayer {
player.events().addMediaPlayerEventListener(
object : MediaPlayerEventAdapter() {
override fun playing(mediaPlayer: MediaPlayer) {
val state = _audioState.value
_audioState.value =
state.copy(
_audioState.value.copy(
isPlaying = true,
isBuffering = false,
duration = mediaPlayer.status().length(),
)
// Enforce volume after a short delay — VLC's audio output
// may not be ready immediately when the playing event fires
scope.launch {
delay(100)
try {
mediaPlayer.audio().setVolume(state.volume)
mediaPlayer.audio().isMute = state.isMuted
} catch (_: Exception) {
}
}
}
override fun paused(mediaPlayer: MediaPlayer) {
docs/plans/2026-03-16-desktop-media-manual-testing-plan.md
+7 -6
View File
@@ -138,12 +138,13 @@ Branch has 13 commits implementing Phases 0-9 of desktop media: image display, u
| # | Test | Steps | Expected | Status |
|---|------|-------|----------|--------|
| 9.1 | Inline audio | Note with MP3 URL | Audio player renders inline | |
| 9.2 | Play/pause | Click play | Audio plays; click again pauses | |
| 9.3 | Seek | Drag seek bar | Playback jumps to position | |
| 9.4 | Time display | Play audio file | Shows current/total time | |
| 9.5 | Multiple formats | Notes with OGG, WAV, FLAC, AAC, OPUS, M4A | All play (where VLC supports) | |
| 9.6 | Audio pool | Scroll past 6+ audio notes | Max 5 audio players; earlier ones release | |
| 9.1 | Inline audio | Note with MP3 URL | Audio player renders inline | ✅ PASS |
| 9.2 | Play/pause | Click play | Audio plays; click again pauses | ✅ PASS |
| 9.3 | Seek | Drag seek bar | Playback jumps to position | ✅ PASS |
| 9.4 | Time display | Play audio file | Shows current/total time | ✅ PASS |
| 9.5 | Multiple formats | Notes with OGG, WAV, FLAC, AAC, OPUS, M4A | All play (where VLC supports) | ⬜ TODO |
| 9.6 | Audio pool | Scroll past 6+ audio notes | Max 5 audio players; earlier ones release | N/A — GlobalMediaPlayer uses single shared player now |
| 9.7 | Initial volume | Play audio without touching volume slider | Audio audible at 100% on first play | 🐛 BUG — VLC starts silent; moving volume slider fixes it. Tried `:start-volume`, `setVolume` in playing callback, delayed retries — none work. Needs investigation into VLCJ audio output init timing on macOS. |
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