Fix condition for when to use the FrameEditor.

outputHeight is the actual output height while
transformation.outputHeight could be Format.NO_VALUE
causing the FrameEditor to be used more often than
necessary in the old version.

PiperOrigin-RevId: 414304251

library/transformer/src/main/java/com/google/android/exoplayer2/transformer/VideoSamplePipeline.java

@@ -80,8 +80,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
       throw createRendererException(
           e, rendererIndex, inputFormat, PlaybackException.ERROR_CODE_UNSPECIFIED);
     }
-    if (inputFormat.height != transformation.outputHeight
-        || !transformation.transformationMatrix.isIdentity()) {
+    if (inputFormat.height != outputHeight || !transformation.transformationMatrix.isIdentity()) {
       frameEditor =
           FrameEditor.create(
               context,