fix: yt-dlp playback not working and add partial support for HLS streaming

lib/provider/server/routes/playback.dart

@@ -117,6 +117,24 @@ class ServerPlaybackRoutes {
       return dio.head(url, options: options);
     });
 
+    // Redirect to m3u8 link directly as it handles range requests internally
+    if (contentLengthRes?.headers.value("content-type") ==
+        "application/vnd.apple.mpegurl") {
+      return (
+        response: dio_lib.Response<Uint8List>(
+          statusCode: 301,
+          statusMessage: "M3U8 Redirect",
+          headers: Headers.fromMap({
+            "location": [url],
+            "content-type": ["application/vnd.apple.mpegurl"],
+          }),
+          requestOptions: RequestOptions(path: request.requestedUri.toString()),
+          isRedirect: true,
+        ),
+        bytes: null,
+      );
+    }
+
     final contentLength = contentLengthRes?.headers.value("content-length");
 
     /// Forcing partial content range as mpv sometimes greedily wants

lib/services/youtube_engine/yt_dlp_engine.dart

@@ -11,9 +11,7 @@ import 'package:http_parser/http_parser.dart';
 class YtDlpEngine implements YouTubeEngine {
   StreamManifest _parseFormats(List formats, videoId) {
     final audioOnlyStreams = formats
-        .where(
+        .where((f) => f["resolution"] == "audio only")
-          (f) => f["resolution"] == "audio only" && f["manifest_url"] == null,
-        )
         .sorted((a, b) => a["quality"] > b["quality"] ? 1 : -1)
         .map((f) {
       final filesize = f["filesize"] ?? f["filesize_approx"];
@@ -22,13 +20,14 @@ class YtDlpEngine implements YouTubeEngine {
         0,
         Uri.parse(f["url"]),
         StreamContainer.parse(
-          f["container"]?.replaceAll("_dash", "").replaceAll("m4a", "mp4"),
+          f["container"]?.replaceAll("_dash", "").replaceAll("m4a", "mp4") ??
+              (f["protocol"] == "m3u8_native" ? "m3u8" : "mp4"),
         ),
         filesize != null ? FileSize(filesize) : FileSize.unknown,
         Bitrate(
           (((f["abr"] ?? f["tbr"] ?? 0) * 1000) as num).toInt(),
         ),
-        f["acodec"] ?? "webm",
+        f["acodec"] ?? "aac",
         f["format_note"],
         [],
         MediaType.parse(

pubspec.lock

@@ -2881,8 +2881,8 @@ packages:
     dependency: "direct main"
     description:
       path: "."
-      ref: e2d82305fab18566408d6f8758361017d1640c3d
+      ref: "4e5310e14af74bdbb51e2a4766e66d6c6a2562a8"
-      resolved-ref: e2d82305fab18566408d6f8758361017d1640c3d
+      resolved-ref: "4e5310e14af74bdbb51e2a4766e66d6c6a2562a8"
       url: "https://github.com/KRTirtho/yt_dlp_dart.git"
     source: git
     version: "1.0.0"

pubspec.yaml

@@ -132,7 +132,7 @@ dependencies:
   yt_dlp_dart:
     git:
       url: https://github.com/KRTirtho/yt_dlp_dart.git
-      ref: e2d82305fab18566408d6f8758361017d1640c3d
+      ref: 4e5310e14af74bdbb51e2a4766e66d6c6a2562a8
   flutter_new_pipe_extractor:
     git:
       url: https://github.com/KRTirtho/flutter_new_pipe_extractor.git