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fix(mpv): apply carried audio/subtitle track after file load

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Setting sid/aid before loadfile does not stick for embedded tracks, so a
carried-over subtitle was silently dropped on a freshly loaded episode.
Apply the initial audio/subtitle selection in the MPV_EVENT_FILE_LOADED
handler (after tracks are enumerated) for embedded and external alike, on
both iOS and Android.
This commit is contained in:
Fredrik Burmester
2026-05-30 20:15:37 +02:00
parent 6876ce046f
commit d2e73021b1
2 changed files with 27 additions and 12 deletions
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16
modules/mpv-player/android/src/main/java/expo/modules/mpvplayer/MPVLayerRenderer.kt
View File

@@ -684,11 +684,19 @@ class MPVLayerRenderer(private val context: Context) : MPVLib.EventObserver {
MPVLib.command(arrayOf("sub-add", subUrl, "auto"))
}
pendingExternalSubtitles = emptyList()
// Set subtitle after external subs are added
initialSubtitleId?.let { setSubtitleTrack(it) } ?: disableSubtitles()
}
// Apply the initial audio/subtitle selection now that the file's
// tracks are enumerated. Setting sid/aid before `loadfile` does not
// reliably stick for embedded tracks (the selection is silently
// dropped), so we (re)apply here for embedded and external alike.
// This is what makes a carried-over subtitle show up on the next
// episode without a manual re-selection.
if (initialAudioId != null && initialAudioId > 0) {
setAudioTrack(initialAudioId)
}
initialSubtitleId?.let { setSubtitleTrack(it) } ?: disableSubtitles()
if (!isReadyToSeek) {
isReadyToSeek = true
mainHandler.post { delegate?.onReadyToSeek() }

23
modules/mpv-player/ios/MPVLayerRenderer.swift
View File

@@ -485,8 +485,7 @@ final class MPVLayerRenderer {
switch event.event_id {
case MPV_EVENT_FILE_LOADED:
// Add external subtitles now that the file is loaded
let hadExternalSubs = !pendingExternalSubtitles.isEmpty
if hadExternalSubs, let handle = mpv {
if !pendingExternalSubtitles.isEmpty, let handle = mpv {
for (index, subUrl) in pendingExternalSubtitles.enumerated() {
print("🔧 Adding external subtitle [\(index)]: \(subUrl)")
// Use commandSync to ensure subs are added in exact order (not async)
@@ -494,12 +493,20 @@ final class MPVLayerRenderer {
commandSync(handle, ["sub-add", subUrl, "auto"])
}
pendingExternalSubtitles = []
// Set subtitle after external subs are added
if let subId = initialSubtitleId {
setSubtitleTrack(subId)
} else {
disableSubtitles()
}
}
// Apply the initial audio/subtitle selection now that the file's
// tracks are enumerated. Setting sid/aid before `loadfile` does not
// reliably stick for embedded tracks (the selection is silently
// dropped), so we (re)apply here for embedded and external alike.
// This is what makes a carried-over subtitle show up on the next
// episode without a manual re-selection.
if let audioId = initialAudioId, audioId > 0 {
setAudioTrack(audioId)
}
if let subId = initialSubtitleId {
setSubtitleTrack(subId)
} else {
disableSubtitles()
}
if !isReadyToSeek {
isReadyToSeek = true