fix(chromecast): add missing MediaInfo fields

components/PlayButton.tsx

@@ -9,6 +9,7 @@ import { useTranslation } from "react-i18next";
 import { Alert, Platform, TouchableOpacity, View } from "react-native";
 import CastContext, {
   CastButton,
+  MediaStreamType,
   PlayServicesState,
   useMediaStatus,
   useRemoteMediaClient,
@@ -185,11 +186,23 @@ export const PlayButton: React.FC<Props> = ({
                     return;
                   }
 
+                  // Calculate start time in seconds from playback position
+                  const startTimeSeconds =
+                    (item?.UserData?.PlaybackPositionTicks ?? 0) / 10000000;
+
+                  // Calculate stream duration in seconds from runtime
+                  const streamDurationSeconds = item.RunTimeTicks
+                    ? item.RunTimeTicks / 10000000
+                    : undefined;
+
                   client
                     .loadMedia({
                       mediaInfo: {
+                        contentId: item.Id,
                         contentUrl: data?.url,
                         contentType: "video/mp4",
+                        streamType: MediaStreamType.BUFFERED,
+                        streamDuration: streamDurationSeconds,
                         metadata:
                           item.Type === "Episode"
                             ? {
@@ -241,7 +254,7 @@ export const PlayButton: React.FC<Props> = ({
                                   ],
                                 },
                       },
-                      startTime: 0,
+                      startTime: startTimeSeconds,
                     })
                     .then(() => {
                       // state is already set when reopening current media, so skip it here.

hooks/useMusicCast.ts

@@ -3,6 +3,7 @@ import type { BaseItemDto } from "@jellyfin/sdk/lib/generated-client/models";
 import { useCallback } from "react";
 import CastContext, {
   CastState,
+  MediaStreamType,
   PlayServicesState,
   useCastState,
   useRemoteMediaClient,
@@ -82,10 +83,18 @@ export const useMusicCast = ({ api, userId }: UseMusicCastOptions) => {
               streamResult.mediaSource?.Container,
             );
 
+            // Calculate stream duration in seconds from runtime ticks
+            const streamDurationSeconds = track.RunTimeTicks
+              ? track.RunTimeTicks / 10000000
+              : undefined;
+
             return {
               mediaInfo: {
+                contentId: track.Id,
                 contentUrl: streamResult.url,
                 contentType,
+                streamType: MediaStreamType.BUFFERED,
+                streamDuration: streamDurationSeconds,
                 metadata: {
                   type: "musicTrack" as const,
                   title: track.Name || "Unknown Track",