Transformer: avoid retrieving the video decoded bytes

Decoded video frames can be large and there is no need to retrieve the
corresponding ByteBuffer as we render the decoded frames on a surface
for better performance.

PiperOrigin-RevId: 405364950

Author: kim-vde

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

@@ -305,7 +305,7 @@ private boolean feedEncoderFromDecoder() {
 
     if (!isDecoderSurfacePopulated) {
       if (!waitingForPopulatedDecoderSurface) {
-        if (decoder.getOutputBuffer() != null) {
+        if (decoder.getOutputBufferInfo() != null) {
           decoder.releaseOutputBuffer(/* render= */ true);
           waitingForPopulatedDecoderSurface = true;
         }