fix(YouTube Music - Spoof client): Some users have a playback issue even if Spoof client is turned on (A/B testing)

extensions/shared/src/main/java/app/revanced/extension/shared/patches/spoof/SpoofClientPatch.java

@@ -131,4 +131,16 @@ public class SpoofClientPatch extends BlockRequestPatch {
         }
         return original;
     }
+
+    /**
+     * Injection point.
+     * <p>
+     * Return false to force disable playback feature flag.
+     */
+    public static boolean forceDisablePlaybackFeatureFlag(boolean original) {
+        if (SPOOF_CLIENT) {
+            return false;
+        }
+        return original;
+    }
 }

patches/src/main/kotlin/app/revanced/patches/music/utils/fix/client/Fingerprints.kt

@@ -39,4 +39,20 @@ internal val userAgentHeaderBuilderFingerprint = legacyFingerprint(
     accessFlags = AccessFlags.PUBLIC or AccessFlags.STATIC,
     parameters = listOf("Landroid/content/Context;"),
     strings = listOf("(Linux; U; Android "),
+)
+
+/**
+ * If this flag is activated, a playback issue occurs.
+ * (Regardless of the 'Spoof client')
+ *
+ * Added in YouTube Music 7.33+
+ */
+internal const val PLAYBACK_FEATURE_FLAG = 45665455L
+
+internal val playbackFeatureFlagFingerprint = legacyFingerprint(
+    name = "playbackFeatureFlagFingerprint",
+    returnType = "Z",
+    accessFlags = AccessFlags.PUBLIC or AccessFlags.FINAL,
+    parameters = emptyList(),
+    literals = listOf(PLAYBACK_FEATURE_FLAG),
 )

patches/src/main/kotlin/app/revanced/patches/music/utils/fix/client/SpoofClientPatch.kt

@@ -13,6 +13,8 @@ import app.revanced.patches.music.utils.extension.Constants.VIDEO_PATH
 import app.revanced.patches.music.utils.patch.PatchList.SPOOF_CLIENT
 import app.revanced.patches.music.utils.playbackRateBottomSheetClassFingerprint
 import app.revanced.patches.music.utils.playbackSpeedBottomSheetFingerprint
+import app.revanced.patches.music.utils.playservice.is_7_33_or_greater
+import app.revanced.patches.music.utils.playservice.versionCheckPatch
 import app.revanced.patches.music.utils.resourceid.sharedResourceIdPatch
 import app.revanced.patches.music.utils.resourceid.varispeedUnavailableTitle
 import app.revanced.patches.music.utils.settings.CategoryType
@@ -30,6 +32,7 @@ import app.revanced.patches.shared.indexOfManufacturerInstruction
 import app.revanced.patches.shared.indexOfModelInstruction
 import app.revanced.patches.shared.indexOfReleaseInstruction
 import app.revanced.util.findMethodOrThrow
+import app.revanced.util.fingerprint.injectLiteralInstructionBooleanCall
 import app.revanced.util.fingerprint.matchOrThrow
 import app.revanced.util.fingerprint.methodOrThrow
 import app.revanced.util.fingerprint.mutableClassOrThrow
@@ -69,6 +72,7 @@ val spoofClientPatch = bytecodePatch(
         settingsPatch,
         sharedResourceIdPatch,
         blockRequestPatch,
+        versionCheckPatch,
         customPlaybackSpeedPatch(
             "$VIDEO_PATH/CustomPlaybackSpeedPatch;",
             5.0f
@@ -334,6 +338,17 @@ val spoofClientPatch = bytecodePatch(
 
         // endregion
 
+        // region fix for feature flags
+
+        if (is_7_33_or_greater) {
+            playbackFeatureFlagFingerprint.injectLiteralInstructionBooleanCall(
+                PLAYBACK_FEATURE_FLAG,
+                "$EXTENSION_CLASS_DESCRIPTOR->forceDisablePlaybackFeatureFlag(Z)Z"
+            )
+        }
+
+        // endregion
+
         findMethodOrThrow("$PATCHES_PATH/PatchStatus;") {
             name == "SpoofClient"
         }.replaceInstruction(

patches/src/main/kotlin/app/revanced/patches/music/utils/playservice/VersionCheckPatch.kt

@@ -33,6 +33,8 @@ var is_7_27_or_greater = false
     private set
 var is_7_29_or_greater = false
     private set
+var is_7_33_or_greater = false
+    private set
 var is_8_03_or_greater = false
     private set
 
@@ -64,6 +66,7 @@ val versionCheckPatch = resourcePatch(
         is_7_25_or_greater = 244399000 <= playStoreServicesVersion
         is_7_27_or_greater = 244515000 <= playStoreServicesVersion
         is_7_29_or_greater = 244799000 <= playStoreServicesVersion
+        is_7_33_or_greater = 245199000 <= playStoreServicesVersion
         is_8_03_or_greater = 250399000 <= playStoreServicesVersion
     }
 }