--- a/dom/media/mediasource/TrackBuffersManager.cpp
+++ b/dom/media/mediasource/TrackBuffersManager.cpp
@@ -439,17 +439,17 @@ TrackBuffersManager::DoEvictData(const T
     if (frame->mKeyframe) {
       lastKeyFrameIndex = i;
       toEvict -= partialEvict;
       if (toEvict < 0) {
         break;
       }
       partialEvict = 0;
     }
-    if (frame->mTime >= lowerLimit.ToMicroseconds()) {
+    if (frame->GetEndTime() >= lowerLimit.ToMicroseconds()) {
       break;
     }
     partialEvict += frame->ComputedSizeOfIncludingThis();
   }
 
   const int64_t finalSize = mSizeSourceBuffer - aSizeToEvict;
 
   if (lastKeyFrameIndex > 0) {