Rollback of https://github.com/androidx/media/commit/fc539da0613d8703e2176fe5aa225df8cefb9c8f

*** Original commit ***

Release SequenceAssetLoader when ended

Before, the SequenceAssetLoader was released at the end of the export.
Release resources earlier if possible.

***

PiperOrigin-RevId: 519993003

libraries/transformer/src/main/java/androidx/media3/transformer/SequenceAssetLoader.java

@@ -94,7 +94,6 @@ import java.util.concurrent.atomic.AtomicInteger;
   private boolean audioLoopingEnded;
   private boolean videoLoopingEnded;
   private int processedInputsSize;
-  private boolean released;
 
   private volatile long currentAssetDurationUs;
 
@@ -166,10 +165,7 @@ import java.util.concurrent.atomic.AtomicInteger;
 
   @Override
   public void release() {
-    if (!released) {
     currentAssetLoader.release();
-      released = true;
-    }
   }
 
   /**
@@ -372,15 +368,13 @@ import java.util.concurrent.atomic.AtomicInteger;
       long globalTimestampUs = totalDurationUs + inputBuffer.timeUs - currentAssetStartTimeUs;
       if (isLooping && globalTimestampUs >= maxSequenceDurationUs) {
         if (isMaxSequenceDurationUsFinal && !audioLoopingEnded) {
+          nonEndedTracks.decrementAndGet();
           checkNotNull(inputBuffer.data).limit(0);
           inputBuffer.setFlags(C.BUFFER_FLAG_END_OF_STREAM);
           // We know that queueInputBuffer() will always return true for the underlying
           // SampleConsumer so there is no need to handle the case where the sample wasn't queued.
           checkState(sampleConsumer.queueInputBuffer());
           audioLoopingEnded = true;
-          if (nonEndedTracks.decrementAndGet() == 0) {
-            release();
-          }
         }
         return false;
       }
@@ -393,14 +387,9 @@ import java.util.concurrent.atomic.AtomicInteger;
           if (nonEndedTracks.get() == 0) {
             switchAssetLoader();
           }
-        } else {
-          checkState(sampleConsumer.queueInputBuffer());
-          if (nonEndedTracks.get() == 0) {
-            release();
-          }
-        }
           return true;
         }
+      }
 
       checkState(sampleConsumer.queueInputBuffer());
       return true;
@@ -459,19 +448,15 @@ import java.util.concurrent.atomic.AtomicInteger;
 
     @Override
     public void signalEndOfVideoInput() {
+      nonEndedTracks.decrementAndGet();
       boolean videoEnded =
           isLooping ? videoLoopingEnded : currentMediaItemIndex == editedMediaItems.size() - 1;
       if (videoEnded) {
         sampleConsumer.signalEndOfVideoInput();
-      }
-      if (nonEndedTracks.decrementAndGet() == 0) {
-        if (videoEnded) {
-          release();
-        } else {
+      } else if (nonEndedTracks.get() == 0) {
         switchAssetLoader();
       }
     }
-    }
 
     private void switchAssetLoader() {
       handler.post(
@@ -494,9 +479,5 @@ import java.util.concurrent.atomic.AtomicInteger;
             currentAssetLoader.start();
           });
     }
-
-    private void release() {
-      handler.post(SequenceAssetLoader.this::release);
-    }
   }
 }