Release BitmapTextureManager resources

PiperOrigin-RevId: 525434071

library/effect/src/main/java/com/google/android/exoplayer2/effect/BitmapTextureManager.java

@@ -99,6 +99,20 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
         });
   }
 
+  /**
+   * Releases all resources.
+   *
+   * @see VideoFrameProcessor#release()
+   */
+  public void release() {
+    videoFrameProcessingTaskExecutor.submit(
+        () -> {
+          if (currentGlTextureInfo != null) {
+            GlUtil.deleteTexture(currentGlTextureInfo.texId);
+          }
+        });
+  }
+
   // Methods that must be called on the GL thread.
 
   private void setupBitmap(Bitmap bitmap, long durationUs, float frameRate, boolean useHdr)

library/effect/src/main/java/com/google/android/exoplayer2/effect/DefaultVideoFrameProcessor.java

@@ -408,6 +408,9 @@ public final class DefaultVideoFrameProcessor implements VideoFrameProcessor {
     if (inputExternalTextureManager != null) {
       inputExternalTextureManager.release();
     }
+    if (inputBitmapTextureManager != null) {
+      inputBitmapTextureManager.release();
+    }
   }
 
   /**