Merge branch 'develop' into fix/subtitles-ordering-fix

Fixed an issue where external and subrip subtitles were not ordered
correctly

Signed-off-by: Lance Chant <13349722+lancechant@users.noreply.github.com>

app/(auth)/player/direct-player.tsx

@@ -56,8 +56,8 @@ import { getDefaultPlaySettings } from "@/utils/jellyfin/getDefaultPlaySettings"
 import { getPrimaryImageUrl } from "@/utils/jellyfin/image/getPrimaryImageUrl";
 import { getStreamUrl } from "@/utils/jellyfin/media/getStreamUrl";
 import {
-  applyMpvSubtitleSelection,
   getMpvAudioId,
+  getMpvSubtitleId,
 } from "@/utils/jellyfin/subtitleUtils";
 import { writeToLog } from "@/utils/log";
 import { msToTicks, ticksToSeconds } from "@/utils/time";
@@ -639,9 +639,12 @@ export default function DirectPlayerPage() {
       ).map((s) => s.DeliveryUrl!);
     }
 
-    // Audio maps positionally (audio tracks aren't reordered or hidden like
+    // Calculate track IDs for initial selection
-    // subtitles). The subtitle selection is applied later, once MPV's real track
+    const initialSubtitleId = getMpvSubtitleId(
-    // list is known — see applySubtitleSelection / onTracksReady.
+      mediaSource,
+      subtitleIndex,
+      isTranscoding,
+    );
     const initialAudioId = getMpvAudioId(
       mediaSource,
       audioIndex,
@@ -659,6 +662,7 @@ export default function DirectPlayerPage() {
       url: stream.url,
       startPosition: startPos,
       autoplay: true,
+      initialSubtitleId,
       initialAudioId,
       // Pass cache/buffer settings from user preferences
       cacheConfig: {
@@ -706,6 +710,7 @@ export default function DirectPlayerPage() {
     playbackPositionFromUrl,
     api?.basePath,
     api?.accessToken,
+    subtitleIndex,
     audioIndex,
     offline,
     settings.mpvCacheEnabled,
@@ -903,41 +908,30 @@ export default function DirectPlayerPage() {
   );
 
   // TV subtitle track change handler
-  /**
-   * Resolve a Jellyfin subtitle index against MPV's *real* track list and apply
-   * it. Identity-based (external by filename, embedded by language/title) so it
-   * stays correct across external/embedded reordering and server-hidden embedded
-   * subs — unlike positional mapping. Reused for initial selection (onTracksReady,
-   * fired again after each external sub-add) and runtime changes.
-   */
-  const applySubtitleSelection = useCallback(
-    async (jellyfinSubtitleIndex: number) => {
-      const subtitleStreams = stream?.mediaSource?.MediaStreams?.filter(
-        (s) => s.Type === "Subtitle",
-      );
-      await applyMpvSubtitleSelection(videoRef.current, {
-        subtitleStreams,
-        jellyfinSubtitleIndex,
-        // The exact URL each external sub was loaded into MPV with — mirrors the
-        // externalSubtitles array built in videoSource (online: basePath +
-        // DeliveryUrl, offline: local DeliveryUrl).
-        getExpectedExternalUrl: (s) => {
-          if (!s.DeliveryUrl) return undefined;
-          if (offline) return s.DeliveryUrl;
-          return api?.basePath ? `${api.basePath}${s.DeliveryUrl}` : undefined;
-        },
-      });
-    },
-    [stream?.mediaSource, offline, api?.basePath],
-  );
-
-  // TV/mobile subtitle track change handler
   const handleSubtitleIndexChange = useCallback(
     async (index: number) => {
       setCurrentSubtitleIndex(index);
-      await applySubtitleSelection(index);
+
+      // Check if we're transcoding
+      const isTranscoding = Boolean(stream?.mediaSource?.TranscodingUrl);
+
+      if (index === -1) {
+        // Disable subtitles
+        await videoRef.current?.disableSubtitles?.();
+      } else {
+        // Convert Jellyfin index to MPV track ID
+        const mpvTrackId = getMpvSubtitleId(
+          stream?.mediaSource,
+          index,
+          isTranscoding,
+        );
+
+        if (mpvTrackId !== undefined && mpvTrackId !== -1) {
+          await videoRef.current?.setSubtitleTrack?.(mpvTrackId);
+        }
+      }
     },
-    [applySubtitleSelection],
+    [stream?.mediaSource],
   );
 
   // Technical info toggle handler
@@ -1302,10 +1296,6 @@ export default function DirectPlayerPage() {
                 }}
                 onTracksReady={() => {
                   setTracksReady(true);
-                  // Fired after embedded tracks enumerate and again after each
-                  // external sub-add; re-resolve so the final fire (full track
-                  // list) selects the right track by identity.
-                  void applySubtitleSelection(currentSubtitleIndex);
                 }}
               />
               {!hasPlaybackStarted && (

components/ItemContent.tv.tsx

@@ -56,7 +56,6 @@ import { useSettings } from "@/utils/atoms/settings";
 import type { TVOptionItem } from "@/utils/atoms/tvOptionModal";
 import { getLogoImageUrlById } from "@/utils/jellyfin/image/getLogoImageUrlById";
 import { getPrimaryImageUrlById } from "@/utils/jellyfin/image/getPrimaryImageUrlById";
-import { compareTracksForMenu } from "@/utils/jellyfin/subtitleUtils";
 import { formatDuration, runtimeTicksToMinutes } from "@/utils/time";
 
 const { width: SCREEN_WIDTH, height: SCREEN_HEIGHT } = Dimensions.get("window");
@@ -233,13 +232,12 @@ export const ItemContentTV: React.FC<ItemContentTVProps> = React.memo(
       return streams ?? [];
     }, [selectedOptions?.mediaSource]);
 
-    // Get available subtitle tracks (raw MediaStream[] for label lookup),
+    // Get available subtitle tracks (raw MediaStream[] for label lookup)
-    // ordered like jellyfin-web (embedded first, externals last, forced/default up).
     const subtitleStreams = useMemo(() => {
       const streams = selectedOptions?.mediaSource?.MediaStreams?.filter(
         (s) => s.Type === "Subtitle",
       );
-      return streams ? [...streams].sort(compareTracksForMenu) : [];
+      return streams ?? [];
     }, [selectedOptions?.mediaSource]);
 
     // Store handleSubtitleChange in a ref for stable callback reference
@@ -413,13 +411,11 @@ export const ItemContentTV: React.FC<ItemContentTVProps> = React.memo(
             )
           : freshItem.MediaSources?.[0];
 
-        // Get subtitle streams from the fresh data, ordered like jellyfin-web
+        // Get subtitle streams from the fresh data
-        // (embedded first, externals last) — same as the initial list.
+        const streams =
-        const streams = [
+          mediaSource?.MediaStreams?.filter(
-          ...(mediaSource?.MediaStreams?.filter(
             (s: MediaStream) => s.Type === "Subtitle",
-          ) ?? []),
+          ) ?? [];
-        ].sort(compareTracksForMenu);
 
         // Convert to Track[] with setTrack callbacks
         const tracks: Track[] = streams.map((stream) => ({

components/MediaSourceButton.tsx

@@ -7,7 +7,6 @@ import { useCallback, useEffect, useMemo, useState } from "react";
 import { useTranslation } from "react-i18next";
 import { ActivityIndicator, TouchableOpacity, View } from "react-native";
 import type { ThemeColors } from "@/hooks/useImageColorsReturn";
-import { compareTracksForMenu } from "@/utils/jellyfin/subtitleUtils";
 import { BITRATES } from "./BitRateSheet";
 import type { SelectedOptions } from "./ItemContent";
 import { type OptionGroup, PlatformDropdown } from "./PlatformDropdown";
@@ -64,12 +63,9 @@ export const MediaSourceButton: React.FC<Props> = ({
 
   const subtitleStreams = useMemo(
     () =>
-      // Order like jellyfin-web (embedded first, externals last, forced/default up).
+      selectedOptions.mediaSource?.MediaStreams?.filter(
-      [
-        ...(selectedOptions.mediaSource?.MediaStreams?.filter(
         (x) => x.Type === "Subtitle",
-        ) || []),
+      ) || [],
-      ].sort(compareTracksForMenu),
     [selectedOptions.mediaSource],
   );
 

components/SubtitleTrackSelector.tsx

@@ -2,7 +2,6 @@ import type { MediaSourceInfo } from "@jellyfin/sdk/lib/generated-client/models"
 import { useMemo, useState } from "react";
 import { useTranslation } from "react-i18next";
 import { Platform, TouchableOpacity, View } from "react-native";
-import { compareTracksForMenu } from "@/utils/jellyfin/subtitleUtils";
 import { tc } from "@/utils/textTools";
 import { Text } from "./common/Text";
 import { type OptionGroup, PlatformDropdown } from "./PlatformDropdown";
@@ -23,9 +22,7 @@ export const SubtitleTrackSelector: React.FC<Props> = ({
   const [open, setOpen] = useState(false);
 
   const subtitleStreams = useMemo(() => {
-    const subs = source?.MediaStreams?.filter((x) => x.Type === "Subtitle");
+    return source?.MediaStreams?.filter((x) => x.Type === "Subtitle");
-    // Order like jellyfin-web (embedded first, externals last, forced/default up).
-    return subs ? [...subs].sort(compareTracksForMenu) : subs;
   }, [source]);
 
   const selectedSubtitleSteam = useMemo(

components/video-player/controls/Controls.tv.tsx

@@ -51,7 +51,6 @@ import { useOfflineMode } from "@/providers/OfflineModeProvider";
 import { useSettings } from "@/utils/atoms/settings";
 import type { TVOptionItem } from "@/utils/atoms/tvOptionModal";
 import { getDefaultPlaySettings } from "@/utils/jellyfin/getDefaultPlaySettings";
-import { compareTracksForMenu } from "@/utils/jellyfin/subtitleUtils";
 import { formatTimeString, msToTicks, ticksToMs } from "@/utils/time";
 import { CONTROLS_CONSTANTS } from "./constants";
 import { useVideoContext } from "./contexts/VideoContext";
@@ -318,10 +317,8 @@ export const Controls: FC<Props> = ({
     try {
       const streams = (await onRefreshSubtitleTracks?.()) ?? [];
       // Skip streams without a real index: `?? -1` would alias them to the
-      // "disable subtitles" sentinel and mis-route selection. Order like
+      // "disable subtitles" sentinel and mis-route selection.
-      // jellyfin-web (embedded first, externals last, forced/default up).
+      return streams
-      return [...streams]
-        .sort(compareTracksForMenu)
         .filter((stream) => typeof stream.Index === "number")
         .map((stream) => {
           const index = stream.Index as number;

components/video-player/controls/TVSubtitleSheet.tsx

@@ -33,7 +33,6 @@ import {
   type SubtitleSearchResult,
   useRemoteSubtitles,
 } from "@/hooks/useRemoteSubtitles";
-import { compareTracksForMenu } from "@/utils/jellyfin/subtitleUtils";
 import { COMMON_SUBTITLE_LANGUAGES } from "@/utils/opensubtitles/api";
 
 interface TVSubtitleSheetProps {
@@ -97,19 +96,13 @@ export const TVSubtitleSheet: React.FC<TVSubtitleSheetProps> = ({
   const overlayOpacity = useRef(new Animated.Value(0)).current;
   const sheetTranslateY = useRef(new Animated.Value(300)).current;
 
-  // Order like jellyfin-web (embedded first, externals last, forced/default up).
-  const sortedTracks = useMemo(
-    () => [...subtitleTracks].sort(compareTracksForMenu),
-    [subtitleTracks],
-  );
-
   const initialSelectedTrackIndex = useMemo(() => {
     if (currentSubtitleIndex === -1) return 0;
-    const trackIdx = sortedTracks.findIndex(
+    const trackIdx = subtitleTracks.findIndex(
       (t) => t.Index === currentSubtitleIndex,
     );
     return trackIdx >= 0 ? trackIdx + 1 : 0;
-  }, [sortedTracks, currentSubtitleIndex]);
+  }, [subtitleTracks, currentSubtitleIndex]);
 
   useEffect(() => {
     if (visible) {
@@ -222,7 +215,7 @@ export const TVSubtitleSheet: React.FC<TVSubtitleSheetProps> = ({
       value: -1,
       selected: currentSubtitleIndex === -1,
     };
-    const options = sortedTracks.map((track) => ({
+    const options = subtitleTracks.map((track) => ({
       label:
         track.DisplayTitle || `${track.Language || "Unknown"} (${track.Codec})`,
       sublabel: track.Codec?.toUpperCase(),
@@ -230,7 +223,7 @@ export const TVSubtitleSheet: React.FC<TVSubtitleSheetProps> = ({
       selected: track.Index === currentSubtitleIndex,
     }));
     return [noneOption, ...options];
-  }, [sortedTracks, currentSubtitleIndex, t]);
+  }, [subtitleTracks, currentSubtitleIndex, t]);
 
   if (!visible) return null;
 

components/video-player/controls/contexts/VideoContext.tsx

@@ -23,29 +23,32 @@
  *    - Used to report playback state to Jellyfin server
  *    - Value of -1 means disabled/none
  *
- * 2. PLAYER TRACK (selected by IDENTITY, not position)
+ * 2. MPV INDEX (track.mpvIndex)
- *    - Selection resolves the server Index against MPV's REAL track list via
+ *    - MPV's internal track ID
- *      applyMpvSubtitleSelection: externals matched by external-filename,
+ *    - MPV orders tracks as: [all embedded, then all external]
- *      embedded by language/title. `track.mpvIndex` is no longer used to select
+ *    - IDs: 1..embeddedCount for embedded, embeddedCount+1.. for external
- *      (kept -1) — positional mapping mis-selected when externals/embedded were
+ *    - Value of -1 means track needs replacePlayer() (e.g., burned-in sub)
- *      reordered or the server hid embedded subs (#954 et al.).
  *
  * ============================================================================
  * SUBTITLE HANDLING
  * ============================================================================
  *
- * Embedded & External:
+ * Embedded (DeliveryMethod.Embed):
- *   - Selected via applyMpvSubtitleSelection (identity match against the live
+ *   - Already in MPV's track list
- *     track list). Menu order matches jellyfin-web (compareTracksForMenu:
+ *   - Select via setSubtitleTrack(mpvId)
- *     embedded first, externals last, forced/default float up).
+ *
+ * External (DeliveryMethod.External):
+ *   - Loaded into MPV on video start
+ *   - Select via setSubtitleTrack(embeddedCount + externalPosition + 1)
  *
  * Image-based during transcoding:
- *   - Burned into video by Jellyfin, not in MPV → replacePlayer() to change.
+ *   - Burned into video by Jellyfin, not in MPV
+ *   - Requires replacePlayer() to change
  */
 
+import { SubtitleDeliveryMethod } from "@jellyfin/sdk/lib/generated-client";
 import { File } from "expo-file-system";
 import { useLocalSearchParams } from "expo-router";
-import { useAtomValue } from "jotai";
 import type React from "react";
 import {
   createContext,
@@ -58,14 +61,9 @@ import {
 import { Platform } from "react-native";
 import useRouter from "@/hooks/useAppRouter";
 import type { MpvAudioTrack } from "@/modules";
-import { apiAtom } from "@/providers/JellyfinProvider";
 import { useOfflineMode } from "@/providers/OfflineModeProvider";
 import { getSubtitlesForItem } from "@/utils/atoms/downloadedSubtitles";
-import {
+import { isImageBasedSubtitle } from "@/utils/jellyfin/subtitleUtils";
-  applyMpvSubtitleSelection,
-  compareTracksForMenu,
-  isImageBasedSubtitle,
-} from "@/utils/jellyfin/subtitleUtils";
 import type { Track } from "../types";
 import { usePlayerContext, usePlayerControls } from "./PlayerContext";
 
@@ -89,7 +87,6 @@ export const VideoProvider: React.FC<{ children: ReactNode }> = ({
   const { tracksReady, mediaSource, downloadedItem } = usePlayerContext();
   const playerControls = usePlayerControls();
   const offline = useOfflineMode();
-  const api = useAtomValue(apiAtom);
   const router = useRouter();
 
   const { itemId, audioIndex, bitrateValue, subtitleIndex, playbackPosition } =
@@ -144,19 +141,6 @@ export const VideoProvider: React.FC<{ children: ReactNode }> = ({
   useEffect(() => {
     if (!tracksReady) return;
 
-    // Guard every state commit against stale runs: api?.basePath /
-    // isCurrentSubImageBased can flip mid-run and restart this effect, and an
-    // earlier async run (which captured an old `api`) must not finish later and
-    // overwrite the fresh track list with callbacks bound to stale closures.
-    // The cleanup flips `cancelled`, so any late commit from a dead run is dropped.
-    let cancelled = false;
-    const commitSubtitleTracks = (next: Track[]) => {
-      if (!cancelled) setSubtitleTracks(next);
-    };
-    const commitAudioTracks = (next: Track[]) => {
-      if (!cancelled) setAudioTracks(next);
-    };
-
     const fetchTracks = async () => {
       // Check if this is offline transcoded content
       // For transcoded offline content, only ONE audio track exists in the file
@@ -182,10 +166,10 @@ export const VideoProvider: React.FC<{ children: ReactNode }> = ({
               },
             },
           ];
-          commitAudioTracks(audio);
+          setAudioTracks(audio);
         } else {
           // Fallback: show no audio tracks if the stored track wasn't found
-          commitAudioTracks([]);
+          setAudioTracks([]);
         }
 
         // For subtitles in transcoded offline content:
@@ -195,24 +179,6 @@ export const VideoProvider: React.FC<{ children: ReactNode }> = ({
           downloadedItem.userData.subtitleStreamIndex;
         const subs: Track[] = [];
 
-        // If an IMAGE subtitle was burned into the transcoded download it's in the
-        // video pixels — it can't be turned off or swapped. Show only that entry
-        // instead of advertising "Disable"/text controls that can't affect it.
-        const burnedInSub = allSubs.find(
-          (s) => s.Index === downloadedSubtitleIndex,
-        );
-        if (burnedInSub && isImageBasedSubtitle(burnedInSub)) {
-          commitSubtitleTracks([
-            {
-              name: `${burnedInSub.DisplayTitle || "Unknown"} (burned in)`,
-              index: burnedInSub.Index ?? -1,
-              mpvIndex: -1,
-              setTrack: () => {},
-            },
-          ]);
-          return;
-        }
-
         // Add "Disable" option
         subs.push({
           name: "Disable",
@@ -224,82 +190,123 @@ export const VideoProvider: React.FC<{ children: ReactNode }> = ({
           },
         });
 
-        // Text subs are muxed into the transcoded file and switchable; resolve by
+        // For text-based subs, they should still be available in the file
-        // identity against MPV's real track list (same as online). Order matches web.
+        let subIdx = 1;
-        // Image subs aren't in the transcoded file (only the burned one was, handled
+        for (const sub of allSubs) {
-        // above), so skip them here.
+          if (sub.IsTextSubtitleStream) {
-        for (const sub of [...allSubs].sort(compareTracksForMenu)) {
-          if (!isImageBasedSubtitle(sub)) {
             subs.push({
               name: sub.DisplayTitle || "Unknown",
               index: sub.Index ?? -1,
-              mpvIndex: -1,
+              mpvIndex: subIdx,
               setTrack: () => {
+                playerControls.setSubtitleTrack(subIdx);
                 router.setParams({ subtitleIndex: String(sub.Index) });
-                void applyMpvSubtitleSelection(playerControls, {
-                  subtitleStreams: allSubs,
-                  jellyfinSubtitleIndex: sub.Index ?? -1,
-                  getExpectedExternalUrl: (s) => {
-                    if (!s.DeliveryUrl) return undefined;
-                    if (offline) return s.DeliveryUrl;
-                    return api?.basePath
-                      ? `${api.basePath}${s.DeliveryUrl}`
-                      : undefined;
               },
             });
+            subIdx++;
+          } else if (sub.Index === downloadedSubtitleIndex) {
+            // This image-based sub was burned in - show it but indicate it's active
+            subs.push({
+              name: `${sub.DisplayTitle || "Unknown"} (burned in)`,
+              index: sub.Index ?? -1,
+              mpvIndex: -1, // Can't be changed
+              setTrack: () => {
+                // Already burned in, just update params
+                router.setParams({ subtitleIndex: String(sub.Index) });
               },
             });
           }
         }
 
-        commitSubtitleTracks(subs);
+        setSubtitleTracks(subs.sort((a, b) => a.index - b.index));
         return;
       }
 
       // MPV track handling
       const audioData = await playerControls.getAudioTracks().catch(() => null);
-      if (cancelled) return;
       const playerAudio = (audioData as MpvAudioTrack[]) ?? [];
 
+      // Separate embedded vs external subtitles from Jellyfin's list
+      // MPV orders tracks as: [all embedded, then all external]
+      const embeddedSubs = allSubs.filter(
+        (s) => s.DeliveryMethod === SubtitleDeliveryMethod.Embed,
+      );
+      const externalSubs = allSubs.filter(
+        (s) => s.DeliveryMethod === SubtitleDeliveryMethod.External,
+      );
+
+      // Count embedded subs that will be in MPV
+      // (excludes image-based subs during transcoding as they're burned in)
+      const embeddedInPlayer = embeddedSubs.filter(
+        (s) => !isTranscoding || !isImageBasedSubtitle(s),
+      );
+
       const subs: Track[] = [];
 
-      // Process all Jellyfin subtitles. Selection resolves against MPV's real
+      // Process all Jellyfin subtitles
-      // track list by identity (applyMpvSubtitleSelection) — never positional
+      for (const sub of allSubs) {
-      // index math, which mis-selects across external/embedded reordering and
+        const isEmbedded = sub.DeliveryMethod === SubtitleDeliveryMethod.Embed;
-      // server-hidden embedded subs (#954/#1690/#618/#1467/#976/#1451).
+        const isExternal =
-      // Order matches jellyfin-web (embedded first, externals last, forced/default up).
+          sub.DeliveryMethod === SubtitleDeliveryMethod.External;
-      for (const sub of [...allSubs].sort(compareTracksForMenu)) {
-        // Image-based subs during transcoding are burned into the video by the
-        // server; both switching TO one and switching AWAY from a currently
-        // active one require a player refresh (re-transcode), not a track change.
-        const needsReplace =
-          isTranscoding &&
-          (isImageBasedSubtitle(sub) || isCurrentSubImageBased);
 
+        // For image-based subs during transcoding, need to refresh player
+        if (isTranscoding && isImageBasedSubtitle(sub)) {
           subs.push({
             name: sub.DisplayTitle || "Unknown",
             index: sub.Index ?? -1,
             mpvIndex: -1,
             setTrack: () => {
-            if (needsReplace) {
+              replacePlayer({ subtitleIndex: String(sub.Index) });
+            },
+          });
+          continue;
+        }
+
+        // Calculate MPV track ID based on type
+        // MPV IDs: [1..embeddedCount] for embedded, [embeddedCount+1..] for external
+        let mpvId = -1;
+
+        if (isEmbedded) {
+          // Find position among embedded subs that are in player
+          const embeddedPosition = embeddedInPlayer.findIndex(
+            (s) => s.Index === sub.Index,
+          );
+          if (embeddedPosition !== -1) {
+            mpvId = embeddedPosition + 1; // 1-based ID
+          }
+        } else if (isExternal) {
+          // Find position among external subs, offset by embedded count
+          const externalPosition = externalSubs.findIndex(
+            (s) => s.Index === sub.Index,
+          );
+          if (externalPosition !== -1) {
+            mpvId = embeddedInPlayer.length + externalPosition + 1;
+          }
+        }
+
+        subs.push({
+          name: sub.DisplayTitle || "Unknown",
+          index: sub.Index ?? -1,
+          mpvIndex: mpvId,
+          setTrack: () => {
+            // Transcoding + switching to/from image-based sub
+            if (
+              isTranscoding &&
+              (isImageBasedSubtitle(sub) || isCurrentSubImageBased)
+            ) {
               replacePlayer({ subtitleIndex: String(sub.Index) });
               return;
             }
+
+            // Direct switch in player
+            if (mpvId !== -1) {
+              playerControls.setSubtitleTrack(mpvId);
               router.setParams({ subtitleIndex: String(sub.Index) });
-            void applyMpvSubtitleSelection(playerControls, {
+              return;
-              subtitleStreams: allSubs,
+            }
-              jellyfinSubtitleIndex: sub.Index ?? -1,
+
-              // Mirror how external subs are loaded into MPV (online: basePath +
+            // Fallback - refresh player
-              // DeliveryUrl, offline: local DeliveryUrl) so identity matching by
+            replacePlayer({ subtitleIndex: String(sub.Index) });
-              // external-filename lines up.
-              getExpectedExternalUrl: (s) => {
-                if (!s.DeliveryUrl) return undefined;
-                if (offline) return s.DeliveryUrl;
-                return api?.basePath
-                  ? `${api.basePath}${s.DeliveryUrl}`
-                  : undefined;
-              },
-            });
           },
         });
       }
@@ -367,29 +374,12 @@ export const VideoProvider: React.FC<{ children: ReactNode }> = ({
         }
       }
 
-      // Already in jellyfin-web order (sorted iteration above); "Disable" stays
+      setSubtitleTracks(subs.sort((a, b) => a.index - b.index));
-      // at the front (unshifted), local downloaded subs at the end.
+      setAudioTracks(audio);
-      commitSubtitleTracks(subs);
-      commitAudioTracks(audio);
     };
 
     fetchTracks();
-    return () => {
+  }, [tracksReady, mediaSource, offline, downloadedItem, itemId]);
-      cancelled = true;
-    };
-    // api?.basePath: setTrack builds external-sub URLs from it — rebuild once the
-    // API is ready so online externals don't resolve with undefined.
-    // isCurrentSubImageBased: setTrack closes over it for the transcode replacePlayer
-    // decision — rebuild when it flips so we refresh the stream when we should.
-  }, [
-    tracksReady,
-    mediaSource,
-    offline,
-    downloadedItem,
-    itemId,
-    api?.basePath,
-    isCurrentSubImageBased,
-  ]);
 
   return (
     <VideoContext.Provider value={{ subtitleTracks, audioTracks }}>

modules/mpv-player/android/src/main/java/expo/modules/mpvplayer/MPVLayerRenderer.kt

@@ -535,17 +535,6 @@ class MPVLayerRenderer(private val context: Context) : MPVLib.EventObserver {
             
             mpv?.getPropertyString("track-list/$i/title")?.let { track["title"] = it }
             mpv?.getPropertyString("track-list/$i/lang")?.let { track["lang"] = it }
-            mpv?.getPropertyString("track-list/$i/codec")?.let { track["codec"] = it }
-
-            // Identity fields used to map a Jellyfin subtitle to the real track
-            // (instead of fragile positional counting). `external` + `external-filename`
-            // uniquely identify a sub-added sidecar; `ff-index` aids embedded matching.
-            val external = mpv?.getPropertyBoolean("track-list/$i/external") ?: false
-            track["external"] = external
-            mpv?.getPropertyString("track-list/$i/external-filename")?.let {
-                track["externalFilename"] = it
-            }
-            mpv?.getPropertyInt("track-list/$i/ff-index")?.let { track["ffIndex"] = it }
             
             val selected = mpv?.getPropertyBoolean("track-list/$i/selected") ?: false
             track["selected"] = selected

modules/mpv-player/ios/MPVLayerRenderer.swift

@@ -771,31 +771,11 @@ final class MPVLayerRenderer {
                 track["lang"] = lang
             }
             
-            if let codec = getStringProperty(handle: handle, name: "track-list/\(i)/codec") {
-                track["codec"] = codec
-            }
-
-            // Identity fields used to map a Jellyfin subtitle to the real track
-            // (instead of fragile positional counting). `external` + `external-filename`
-            // uniquely identify a sub-added sidecar; `ff-index` aids embedded matching.
-            var external: Int32 = 0
-            getProperty(handle: handle, name: "track-list/\(i)/external", format: MPV_FORMAT_FLAG, value: &external)
-            track["external"] = external != 0
-
-            if let extFilename = getStringProperty(handle: handle, name: "track-list/\(i)/external-filename") {
-                track["externalFilename"] = extFilename
-            }
-
-            var ffIndex: Int64 = 0
-            if getProperty(handle: handle, name: "track-list/\(i)/ff-index", format: MPV_FORMAT_INT64, value: &ffIndex) >= 0 {
-                track["ffIndex"] = Int(ffIndex)
-            }
-
             var selected: Int32 = 0
             getProperty(handle: handle, name: "track-list/\(i)/selected", format: MPV_FORMAT_FLAG, value: &selected)
             track["selected"] = selected != 0
             
-            Logger.shared.log("getSubtitleTracks: found sub track id=\(trackId), title=\(track["title"] ?? "none"), lang=\(track["lang"] ?? "none"), external=\(external != 0)", type: "Info")
+            Logger.shared.log("getSubtitleTracks: found sub track id=\(trackId), title=\(track["title"] ?? "none"), lang=\(track["lang"] ?? "none")", type: "Info")
             tracks.append(track)
         }
         

modules/mpv-player/src/MpvPlayer.types.ts

@@ -141,14 +141,6 @@ export type SubtitleTrack = {
   id: number;
   title?: string;
   lang?: string;
-  /** Subtitle codec (mpv `codec`), e.g. "subrip", "ass", "hdmv_pgs_subtitle". */
-  codec?: string;
-  /** True if loaded from a separate file via `sub-add` (mpv `external`). */
-  external?: boolean;
-  /** For external tracks: the exact URL/path it was loaded from (mpv `external-filename`). */
-  externalFilename?: string;
-  /** FFmpeg stream index (mpv `ff-index`); not guaranteed for non-lavf demuxers. */
-  ffIndex?: number;
   selected?: boolean;
 };
 

utils/jellyfin/subtitleUtils.test.ts

@@ -1,221 +0,0 @@
-import { describe, expect, test } from "bun:test";
-import type {
-  MediaStream,
-  SubtitleDeliveryMethod,
-} from "@jellyfin/sdk/lib/generated-client";
-import {
-  compareTracksForMenu,
-  isExternalSubtitle,
-  type PlayerSubtitleTrack,
-  resolveSubtitleTrack,
-} from "@/utils/jellyfin/subtitleUtils";
-
-// String-enum values as typed literals — avoids a runtime SDK import (see subtitleUtils.ts).
-const External = "External" as SubtitleDeliveryMethod;
-const Embed = "Embed" as SubtitleDeliveryMethod;
-
-// --- fixtures --------------------------------------------------------------
-
-const sub = (o: Partial<MediaStream> & { Index: number }): MediaStream =>
-  ({ Type: "Subtitle", ...o }) as MediaStream;
-
-const ext = (Index: number, o: Partial<MediaStream> = {}): MediaStream =>
-  sub({
-    Index,
-    DeliveryMethod: External,
-    IsExternal: true,
-    DeliveryUrl: `/sub/${Index}.srt`,
-    ...o,
-  });
-
-const emb = (Index: number, o: Partial<MediaStream> = {}): MediaStream =>
-  sub({ Index, DeliveryMethod: Embed, ...o });
-
-const track = (o: PlayerSubtitleTrack): PlayerSubtitleTrack => o;
-
-// Mirror direct-player.tsx online URL builder.
-const urlBuilder =
-  (base: string) =>
-  (s: MediaStream): string | undefined =>
-    s.DeliveryUrl ? `${base}${s.DeliveryUrl}` : undefined;
-
-const resolve = (
-  streams: MediaStream[],
-  index: number | undefined,
-  player: PlayerSubtitleTrack[],
-  getExpectedExternalUrl = urlBuilder("http://srv"),
-) =>
-  resolveSubtitleTrack({
-    subtitleStreams: streams,
-    jellyfinSubtitleIndex: index,
-    playerTracks: player,
-    getExpectedExternalUrl,
-  });
-
-// --- tests -----------------------------------------------------------------
-
-describe("isExternalSubtitle", () => {
-  test("true for External delivery or the IsExternal flag, not a bare DeliveryUrl", () => {
-    expect(isExternalSubtitle(ext(0))).toBe(true);
-    expect(isExternalSubtitle(sub({ Index: 1, IsExternal: true }))).toBe(true);
-    expect(isExternalSubtitle(emb(2))).toBe(false);
-    // A DeliveryUrl alone (e.g. an Hls-delivered sub) is NOT a sub-added sidecar.
-    expect(isExternalSubtitle(sub({ Index: 3, DeliveryUrl: "/x.srt" }))).toBe(
-      false,
-    );
-  });
-});
-
-describe("resolveSubtitleTrack — disable / notFound", () => {
-  test("index -1 or undefined disables", () => {
-    expect(resolve([], -1, [])).toEqual({ kind: "disable" });
-    expect(resolve([], undefined, [])).toEqual({ kind: "disable" });
-  });
-
-  test("index not present returns notFound", () => {
-    expect(resolve([emb(0)], 99, [track({ id: 1 })])).toEqual({
-      kind: "notFound",
-    });
-  });
-});
-
-describe("resolveSubtitleTrack — hidden embedded (#954)", () => {
-  // Server hides embedded subs: MediaStreams lists only the 3 externals,
-  // but mpv still demuxes the 3 embedded from the file → externals get ids 4,5,6.
-  const streams = [
-    ext(0, { Language: "por" }),
-    ext(1, { Language: "eng" }),
-    ext(2, { Language: "eng", Title: "SDH" }),
-  ];
-  const player = [
-    track({ id: 1, external: false, language: "eng", title: "CC" }),
-    track({ id: 2, external: false, language: "spa" }),
-    track({ id: 3, external: false, language: "fre" }),
-    track({ id: 4, external: true, externalFilename: "http://srv/sub/0.srt" }),
-    track({ id: 5, external: true, externalFilename: "http://srv/sub/1.srt" }),
-    track({ id: 6, external: true, externalFilename: "http://srv/sub/2.srt" }),
-  ];
-
-  test("each external maps to the right player id by filename (not 1,2,3)", () => {
-    expect(resolve(streams, 0, player)).toEqual({ kind: "select", trackId: 4 });
-    expect(resolve(streams, 1, player)).toEqual({ kind: "select", trackId: 5 });
-    expect(resolve(streams, 2, player)).toEqual({ kind: "select", trackId: 6 });
-  });
-
-  test("falls back to external ordinal when filenames are unavailable", () => {
-    const noNames = player.map((t) =>
-      t.external ? { ...t, externalFilename: undefined } : t,
-    );
-    expect(resolve(streams, 1, noNames)).toEqual({
-      kind: "select",
-      trackId: 5,
-    });
-  });
-});
-
-describe("resolveSubtitleTrack — external/embed reversal (non-hidden)", () => {
-  // Jellyfin lists externals first; mpv lists embedded first then externals.
-  const streams = [
-    ext(0, { Language: "eng" }),
-    emb(1, { Language: "spa" }),
-    emb(2, { Language: "fre" }),
-  ];
-  const player = [
-    track({ id: 1, external: false, language: "spa" }),
-    track({ id: 2, external: false, language: "fre" }),
-    track({ id: 3, external: true, externalFilename: "http://srv/sub/0.srt" }),
-  ];
-
-  test("external resolves by filename, embedded by language", () => {
-    expect(resolve(streams, 0, player)).toEqual({ kind: "select", trackId: 3 });
-    expect(resolve(streams, 1, player)).toEqual({ kind: "select", trackId: 1 });
-    expect(resolve(streams, 2, player)).toEqual({ kind: "select", trackId: 2 });
-  });
-});
-
-describe("resolveSubtitleTrack — external without DeliveryUrl (#1763 CodeRabbit)", () => {
-  // Middle external has no DeliveryUrl → never loaded into the player.
-  const streams = [
-    ext(0, { Language: "eng", DeliveryUrl: "/sub/a.srt" }),
-    sub({ Index: 1, DeliveryMethod: External, IsExternal: true }),
-    ext(2, { Language: "fre", DeliveryUrl: "/sub/c.srt" }),
-  ];
-  const player = [
-    track({ id: 4, external: true, externalFilename: "http://srv/sub/a.srt" }),
-    track({ id: 5, external: true, externalFilename: "http://srv/sub/c.srt" }),
-  ];
-
-  test("loaded externals still map correctly despite the gap", () => {
-    expect(resolve(streams, 0, player)).toEqual({ kind: "select", trackId: 4 });
-    expect(resolve(streams, 2, player)).toEqual({ kind: "select", trackId: 5 });
-  });
-
-  test("selecting the unloaded external returns notFound", () => {
-    expect(resolve(streams, 1, player)).toEqual({ kind: "notFound" });
-  });
-});
-
-describe("resolveSubtitleTrack — embedded matching", () => {
-  test("unique language match wins even when player order differs (not positional)", () => {
-    const streams = [emb(0, { Language: "eng" }), emb(1, { Language: "jpn" })];
-    // Player lists them in the OPPOSITE order — a positional map would mis-pick.
-    const player = [
-      track({ id: 1, external: false, language: "jpn" }),
-      track({ id: 2, external: false, language: "eng" }),
-    ];
-    expect(resolve(streams, 0, player)).toEqual({ kind: "select", trackId: 2 }); // eng
-    expect(resolve(streams, 1, player)).toEqual({ kind: "select", trackId: 1 }); // jpn
-  });
-
-  test("same-language tracks with no distinguishing title fall back to ordinal among matches", () => {
-    const streams = [emb(0, { Language: "eng" }), emb(1, { Language: "eng" })];
-    // Both eng, no title → identity can't disambiguate → ordinal among matches.
-    const player = [
-      track({ id: 5, external: false, language: "eng" }),
-      track({ id: 6, external: false, language: "eng" }),
-    ];
-    expect(resolve(streams, 0, player)).toEqual({ kind: "select", trackId: 5 });
-    expect(resolve(streams, 1, player)).toEqual({ kind: "select", trackId: 6 });
-  });
-
-  test("falls back to embedded ordinal when no language/title info", () => {
-    const streams = [emb(0), emb(1)];
-    const player = [
-      track({ id: 1, external: false }),
-      track({ id: 2, external: false }),
-    ];
-    expect(resolve(streams, 1, player)).toEqual({ kind: "select", trackId: 2 });
-  });
-});
-
-describe("compareTracksForMenu — jellyfin-web order", () => {
-  test("externals sort after embedded despite lower Index", () => {
-    const sorted = [
-      ext(0, { Language: "eng" }),
-      emb(7, { Language: "fra" }),
-    ].sort(compareTracksForMenu);
-    expect(sorted.map((s) => s.Index)).toEqual([7, 0]);
-  });
-
-  test("forced then default float to the top within a group", () => {
-    const sorted = [
-      emb(2, { Language: "eng" }),
-      emb(1, { Language: "eng", IsDefault: true }),
-      emb(0, { Language: "eng", IsForced: true }),
-    ].sort(compareTracksForMenu);
-    expect(sorted.map((s) => s.Index)).toEqual([0, 1, 2]);
-  });
-
-  test("full Okiku order: embedded first, externals last by Index", () => {
-    const streams = [
-      ext(0, { Language: "eng" }),
-      ext(1, { Language: "eng" }),
-      ext(2, { Language: "fra" }),
-      ext(3, { Language: "fra" }),
-      emb(7, { Language: "fra", Title: "French" }),
-    ];
-    expect([...streams].sort(compareTracksForMenu).map((s) => s.Index)).toEqual(
-      [7, 0, 1, 2, 3],
-    );
-  });
-});

utils/jellyfin/subtitleUtils.ts

@@ -1,287 +1,120 @@
 /**
- * Subtitle utilities: resolve a Jellyfin subtitle stream to the right track in
+ * Subtitle utility functions for mapping between Jellyfin and MPV track indices.
- * the *player's real track list* by identity — never by positional counting.
  *
- * Why: Jellyfin renumbers MediaStreams (externals first); the player enumerates
+ * Jellyfin uses server-side indices (e.g., 3, 4, 5 for subtitles in MediaStreams).
- * embedded-from-container first and externals (`sub-add`) last; and a library that
+ * MPV uses its own track IDs starting from 1, only counting tracks loaded into MPV.
- * hides embedded subs drops them from MediaStreams while the player still demuxes
- * them from the file. Positional Index→id mapping therefore mis-selects (e.g.
- * picking Spanish shows English). See {@link resolveSubtitleTrack}.
  *
  * Image-based subtitles (PGS, VOBSUB) during transcoding are burned into the video
- * and absent from the player's track list.
+ * and NOT available in MPV's track list.
  */
 
-import type {
+import {
-  MediaSourceInfo,
+  type MediaSourceInfo,
-  MediaStream,
+  type MediaStream,
   SubtitleDeliveryMethod,
 } from "@jellyfin/sdk/lib/generated-client";
 
-// "External" is the value of SubtitleDeliveryMethod.External. Compared as a typed
-// literal so this util needs no *runtime* import of the SDK barrel — which pulls in
-// the axios-dependent `/api` modules and breaks unit tests under `bun test`.
-const EXTERNAL_DELIVERY = "External" as SubtitleDeliveryMethod;
-
 /** Check if subtitle is image-based (PGS, VOBSUB, etc.) */
 export const isImageBasedSubtitle = (sub: MediaStream): boolean =>
   sub.IsTextSubtitleStream === false;
 
 /**
- * A Jellyfin subtitle stream is "external" when the server delivers it as a
+ * Determine if a subtitle will be available in MPV's track list.
- * sub-added sidecar — i.e. `DeliveryMethod === External` (or the `IsExternal`
- * flag before a device-specific delivery method is assigned).
  *
- * Deliberately NOT keyed on `DeliveryUrl`: an Hls-delivered sub also carries a
+ * A subtitle is in MPV if:
- * `DeliveryUrl` but lives inside the player's track list (not `sub-add`-ed), so
+ * - Delivery is Embed/Hls/External AND not an image-based sub during transcode
- * it must resolve through the embedded path. Keeping this in lockstep with the
- * load sites (which only `sub-add` `DeliveryMethod === External`) and with the
- * menu comparator below avoids a sub being sorted as embedded yet resolved as
- * external (→ `notFound`).
  */
-export const isExternalSubtitle = (sub: MediaStream): boolean =>
+export const isSubtitleInMpv = (
-  sub.DeliveryMethod === EXTERNAL_DELIVERY || sub.IsExternal === true;
+  sub: MediaStream,
-
+  isTranscoding: boolean,
-/**
- * Order subtitle MediaStreams for the selection menu exactly like jellyfin-web's
- * `itemHelper.sortTracks`: in-container tracks first then external, and within
- * each group forced first, then default, then `Index` ascending. Callers prepend
- * their own "None/Off" entry separately.
- *
- * The Jellyfin server inserts external (sidecar) streams at the FRONT of
- * `MediaStreams` (low indices), so raw Index order shows externals first — this
- * comparator flips that to match web (externals last). Uses {@link isExternalSubtitle}
- * (not the raw `IsExternal` flag) so ordering and resolution agree.
- */
-export const compareTracksForMenu = (a: MediaStream, b: MediaStream): number =>
-  Number(isExternalSubtitle(a)) - Number(isExternalSubtitle(b)) ||
-  Number(b.IsForced ?? false) - Number(a.IsForced ?? false) ||
-  Number(b.IsDefault ?? false) - Number(a.IsDefault ?? false) ||
-  (a.Index ?? 0) - (b.Index ?? 0);
-
-/**
- * Identity of a subtitle track as reported by the *player's real track list*
- * (mpv `track-list`, or a Cast media-track list). Player-agnostic on purpose so
- * the same resolver can drive the mpv player today and the Chromecast backend later.
- */
-export type PlayerSubtitleTrack = {
-  /** Player-side id used to actually select the track (mpv `sid`, cast trackId). */
-  id: number;
-  /** True if loaded from a separate file (mpv `external`). */
-  external?: boolean;
-  /** For external tracks: the exact URL/path it was loaded from (mpv `external-filename`). */
-  externalFilename?: string;
-  language?: string;
-  title?: string;
-  codec?: string;
-};
-
-export type SubtitleSelection =
-  | { kind: "select"; trackId: number }
-  | { kind: "disable" }
-  | { kind: "notFound" };
-
-/** Decode percent-encoding and strip a leading `file://` scheme for tolerant comparison. */
-const normalizeUrl = (url: string): string => {
-  let u = url;
-  try {
-    u = decodeURIComponent(u);
-  } catch {
-    // not decodable — compare raw
-  }
-  return u.replace(/^file:\/\//, "");
-};
-
-const externalFilenameMatches = (
-  trackFilename: string | undefined,
-  expectedUrl: string | undefined,
 ): boolean => {
-  if (!trackFilename || !expectedUrl) return false;
+  // During transcoding, image-based subs are burned in, not in MPV
-  const a = normalizeUrl(trackFilename);
+  if (isTranscoding && isImageBasedSubtitle(sub)) {
-  const b = normalizeUrl(expectedUrl);
-  return a === b || a.endsWith(b) || b.endsWith(a);
-};
-
-const eq = (a?: string | null, b?: string | null): boolean =>
-  !!a && !!b && a.toLowerCase() === b.toLowerCase();
-
-/** Match an embedded player track to a Jellyfin stream by language/title (codec-agnostic). */
-const embeddedIdentityMatches = (
-  track: PlayerSubtitleTrack,
-  stream: MediaStream,
-): boolean => {
-  if (eq(track.language, stream.Language)) {
-    // When both carry a title it must agree; otherwise language alone is enough.
-    if (track.title && stream.Title) return eq(track.title, stream.Title);
-    return true;
-  }
-  // No language on one side — fall back to a title match.
-  if (!track.language || !stream.Language) return eq(track.title, stream.Title);
     return false;
+  }
+
+  // Embed/Hls/External methods mean the sub is loaded into MPV
+  return (
+    sub.DeliveryMethod === SubtitleDeliveryMethod.Embed ||
+    sub.DeliveryMethod === SubtitleDeliveryMethod.Hls ||
+    sub.DeliveryMethod === SubtitleDeliveryMethod.External
+  );
 };
 
 /**
- * Resolve the player track id for a given Jellyfin subtitle index by matching
+ * Calculate the MPV track ID for a given Jellyfin subtitle index.
- * against the player's REAL track list (identity), never by positional counting.
  *
- * Why identity, not position: Jellyfin renumbers `MediaStreams` (externals first)
+ * MPV track IDs are 1-based, but MPV's track list is NOT in MediaStreams order:
- * while the player enumerates embedded-from-container first and externals
+ *   1. Embedded/HLS subs are enumerated from the container (or HLS playlist)
- * (`sub-add`) last; and when a library hides embedded subs they vanish from
+ *      first, in MediaStreams order.
- * `MediaStreams` but still physically exist in the file the player demuxes.
+ *   2. External subs are appended via `sub-add` AFTER the file loads, in the
- * Positional Index→id mapping therefore mis-selects (e.g. picking Spanish shows
+ *      order they are passed to MPV (here, also MediaStreams order — see
- * English — issues #954/#1690/#618/#1467/#976/#1451).
+ *      direct-player.tsx where the externalSubtitles array is built by
+ *      filtering MediaStreams).
  *
- * Strategy:
+ * Iterating in pure MediaStreams order produces the wrong MPV ID whenever an
- *  - disabled (-1/undefined) → `disable`
+ * External sub is listed before an Embed sub in MediaStreams (common when
- *  - external Jellyfin sub → match the player track by `externalFilename`
+ * Jellyfin prepends a converted SRT/VTT ahead of an original PGS/ASS track),
- *    (exact identity, immune to hidden-embedded shifts); fall back to the
+ * causing e.g. English to select Spanish. We therefore count in two phases
- *    ordinal among *loadable* externals (Swiftfin: externals are the list tail).
+ * that mirror MPV's actual ordering.
- *  - embedded Jellyfin sub → match by language/title among non-external tracks;
- *    fall back to the embedded ordinal (container order aligns on both sides).
  *
- * Player-agnostic: pass any player's track list + a URL builder, so the mpv
+ * Image-based subs (PGS/VOBSUB) during transcoding are burned into the video
- * player and (later) the Chromecast backend share one source of truth.
+ * and absent from MPV's track list; they are skipped in both phases.
+ *
+ * @param mediaSource - The media source containing subtitle streams
+ * @param jellyfinSubtitleIndex - The Jellyfin server-side subtitle index (-1 = disabled)
+ * @param isTranscoding - Whether the stream is being transcoded
+ * @returns MPV track ID (1-based), or -1 if disabled, or undefined if not in MPV
  */
-export const resolveSubtitleTrack = (params: {
+export const getMpvSubtitleId = (
-  subtitleStreams: MediaStream[] | undefined;
+  mediaSource: MediaSourceInfo | null | undefined,
-  jellyfinSubtitleIndex: number | undefined;
+  jellyfinSubtitleIndex: number | undefined,
-  playerTracks: PlayerSubtitleTrack[];
+  isTranscoding: boolean,
-  /** Build the exact URL/path an external Jellyfin sub was loaded into the player with. */
+): number | undefined => {
-  getExpectedExternalUrl?: (sub: MediaStream) => string | undefined;
+  // -1 or undefined means disabled
-}): SubtitleSelection => {
-  const { jellyfinSubtitleIndex, playerTracks, getExpectedExternalUrl } =
-    params;
-  const subtitleStreams = params.subtitleStreams ?? [];
-
   if (jellyfinSubtitleIndex === undefined || jellyfinSubtitleIndex === -1) {
-    return { kind: "disable" };
+    return -1;
   }
 
-  const target = subtitleStreams.find((s) => s.Index === jellyfinSubtitleIndex);
+  const allSubs =
-  if (!target) return { kind: "notFound" };
+    mediaSource?.MediaStreams?.filter((s) => s.Type === "Subtitle") || [];
 
-  if (isExternalSubtitle(target)) {
+  // Find the subtitle with the matching Jellyfin index
-    const playerExternals = playerTracks.filter((t) => t.external === true);
+  const targetSub = allSubs.find((s) => s.Index === jellyfinSubtitleIndex);
 
-    // 1) Exact identity by external filename — robust against hidden-embedded offset.
+  // If the target subtitle isn't in MPV (e.g., image-based during transcode), return undefined
-    const expectedUrl = getExpectedExternalUrl?.(target);
+  if (!targetSub || !isSubtitleInMpv(targetSub, isTranscoding)) {
-    const byName = playerExternals.find((t) =>
+    return undefined;
-      externalFilenameMatches(t.externalFilename, expectedUrl),
-    );
-    if (byName) return { kind: "select", trackId: byName.id };
-
-    // 2) Fallback: externals are appended in MediaStreams order → ordinal among
-    //    *loadable* externals (those actually added to the player) stays in lockstep
-    //    with the player's external list, skipping ones with no DeliveryUrl (#1763).
-    const externalStreams = subtitleStreams.filter(isExternalSubtitle);
-    const loadableExternals = getExpectedExternalUrl
-      ? externalStreams.filter((s) => getExpectedExternalUrl(s))
-      : externalStreams;
-    const ordinal = loadableExternals.findIndex(
-      (s) => s.Index === jellyfinSubtitleIndex,
-    );
-    if (ordinal >= 0 && ordinal < playerExternals.length) {
-      return { kind: "select", trackId: playerExternals[ordinal].id };
-    }
-    return { kind: "notFound" };
   }
 
-  // Embedded / in-container subtitle.
+  const isExternal = (sub: MediaStream) =>
-  const embeddedStreams = subtitleStreams.filter((s) => !isExternalSubtitle(s));
+    sub.DeliveryMethod === SubtitleDeliveryMethod.External;
-  const playerEmbedded = playerTracks.filter((t) => t.external !== true);
 
-  // 1) Identity by language/title (unique match wins).
+  let mpvIndex = 0;
-  const identityMatches = playerEmbedded.filter((t) =>
+
-    embeddedIdentityMatches(t, target),
+  // Phase 1: embedded / HLS subs — these occupy MPV track IDs first because
-  );
+  // they come from the container or HLS playlist.
-  if (identityMatches.length === 1) {
+  for (const sub of allSubs) {
-    return { kind: "select", trackId: identityMatches[0].id };
+    if (isExternal(sub)) continue;
+    if (!isSubtitleInMpv(sub, isTranscoding)) continue;
+    mpvIndex++;
+    if (sub.Index === jellyfinSubtitleIndex) {
+      return mpvIndex;
+    }
   }
 
-  // 2) Fallback: embedded order is container order on both sides → ordinal.
+  // Phase 2: external subs — appended via `sub-add` after the file loads,
-  const ordinal = embeddedStreams.findIndex(
+  // so they come last in MPV's track list.
-    (s) => s.Index === jellyfinSubtitleIndex,
+  for (const sub of allSubs) {
-  );
+    if (!isExternal(sub)) continue;
-  if (identityMatches.length > 1 && ordinal >= 0) {
+    if (!isSubtitleInMpv(sub, isTranscoding)) continue;
-    // Multiple same-language tracks: pick by position among the matches.
+    mpvIndex++;
-    const idx = Math.min(ordinal, identityMatches.length - 1);
+    if (sub.Index === jellyfinSubtitleIndex) {
-    return { kind: "select", trackId: identityMatches[idx].id };
+      return mpvIndex;
     }
-  if (ordinal >= 0 && ordinal < playerEmbedded.length) {
-    return { kind: "select", trackId: playerEmbedded[ordinal].id };
   }
-  return { kind: "notFound" };
-};
 
-/**
+  return undefined;
- * A subtitle track as reported by a concrete player's track-list API
- * (mpv `getSubtitleTracks`, or a Cast track list). `lang` mirrors mpv's field name.
- */
-export type PlayerSubtitleTrackRaw = {
-  id: number;
-  lang?: string;
-  title?: string;
-  codec?: string;
-  external?: boolean;
-  externalFilename?: string;
-};
-
-/**
- * Minimal player surface needed to select a subtitle. Satisfied structurally by
- * the mpv player ref and (later) implementable by the Chromecast backend.
- */
-export interface SubtitleSelectablePlayer {
-  getSubtitleTracks: () => Promise<PlayerSubtitleTrackRaw[] | null | undefined>;
-  setSubtitleTrack: (trackId: number) => unknown;
-  disableSubtitles: () => unknown;
-}
-
-/**
- * Read the player's real track list, resolve the Jellyfin subtitle index by
- * identity ({@link resolveSubtitleTrack}) and apply the result. Single entry point
- * for both the mobile controls and the player screen, so selection stays
- * consistent everywhere. Returns the resolution for callers that want to react.
- */
-export const applyMpvSubtitleSelection = async (
-  player: SubtitleSelectablePlayer | null | undefined,
-  params: {
-    subtitleStreams: MediaStream[] | undefined;
-    jellyfinSubtitleIndex: number;
-    /** Build the exact URL/path an external sub was loaded into the player with. */
-    getExpectedExternalUrl?: (sub: MediaStream) => string | undefined;
-  },
-): Promise<SubtitleSelection> => {
-  if (!player) return { kind: "notFound" };
-
-  // Called fire-and-forget (`void applyMpvSubtitleSelection(...)`), so any native
-  // rejection from getSubtitleTracks/setSubtitleTrack/disableSubtitles must be
-  // swallowed here instead of escaping as an unhandled promise rejection.
-  try {
-    const tracks = (await player.getSubtitleTracks()) ?? [];
-    const selection = resolveSubtitleTrack({
-      subtitleStreams: params.subtitleStreams,
-      jellyfinSubtitleIndex: params.jellyfinSubtitleIndex,
-      playerTracks: tracks.map((t) => ({
-        id: t.id,
-        external: t.external,
-        externalFilename: t.externalFilename,
-        language: t.lang,
-        title: t.title,
-        codec: t.codec,
-      })),
-      getExpectedExternalUrl: params.getExpectedExternalUrl,
-    });
-
-    if (selection.kind === "select") {
-      await player.setSubtitleTrack(selection.trackId);
-    } else if (selection.kind === "disable") {
-      await player.disableSubtitles();
-    }
-    // notFound → leave current selection (e.g. image subs burned in while transcoding)
-    return selection;
-  } catch {
-    return { kind: "notFound" };
-  }
 };
 
 /**