perf(DRM): compare init data only when config flag is set (#6952)

shaka-project · Jul 1, 2024 · be22e5b · be22e5b
1 parent c6d834e
commit be22e5b
Showing 1 changed file with 7 additions and 6 deletions.
diff --git a/lib/media/drm_engine.js b/lib/media/drm_engine.js
@@ -736,12 +736,13 @@ shaka.media.DrmEngine = class {
     // Note that some init data are extremely large and can't portably be used
     // as keys in a dictionary.
 
-    const metadatas = this.activeSessions_.values();
-    for (const metadata of metadatas) {
-      if (shaka.util.BufferUtils.equal(initData, metadata.initData) &&
-          this.config_.ignoreDuplicateInitData) {
-        shaka.log.debug('Ignoring duplicate init data.');
-        return;
+    if (this.config_.ignoreDuplicateInitData) {
+      const metadatas = this.activeSessions_.values();
+      for (const metadata of metadatas) {
+        if (shaka.util.BufferUtils.equal(initData, metadata.initData)) {
+          shaka.log.debug('Ignoring duplicate init data.');
+          return;
+        }
       }
     }