From 25fd4f4af6ddd8953c4bc2da4a2d9eb1144c3fb9 Mon Sep 17 00:00:00 2001
From: Vasanthavanan Devarajan <vasanthavanan.d@firstlight.ai>
Date: Tue, 9 Aug 2022 14:22:16 +0530
Subject: [PATCH] fix: Fix key ID byteswapping for PlayReady on PS4 (#4377)

---
 lib/media/drm_engine.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/media/drm_engine.js b/lib/media/drm_engine.js
index fad42a2990..beddb24183 100644
--- a/lib/media/drm_engine.js
+++ b/lib/media/drm_engine.js
@@ -1548,7 +1548,7 @@ shaka.media.DrmEngine = class {
       if (shaka.media.DrmEngine.isPlayReadyKeySystem(
           this.currentDrmInfo_.keySystem) &&
           keyId.byteLength == 16 &&
-          shaka.util.Platform.isEdge()) {
+          (shaka.util.Platform.isEdge() || shaka.util.Platform.isPS4())) {
         // Read out some fields in little-endian:
         const dataView = shaka.util.BufferUtils.toDataView(keyId);
         const part0 = dataView.getUint32(0, /* LE= */ true);