Always release output buffer

If rotation changed, the dequeued output buffer was never released. Move
it to a finally block to avoid the leak.

server/src/main/java/com/genymobile/scrcpy/ScreenEncoder.java

@@ -86,6 +86,7 @@ public class ScreenEncoder implements Device.RotationListener {
         MediaCodec.BufferInfo bufferInfo = new MediaCodec.BufferInfo();
         while (!checkRotationChanged() && !eof) {
             int outputBufferId = codec.dequeueOutputBuffer(bufferInfo, -1);
+            try {
                 if (checkRotationChanged()) {
                     // must restart encoding with new size
                     break;
@@ -100,9 +101,13 @@ public class ScreenEncoder implements Device.RotationListener {
                         outputBuffer.get(buf, 0, len);
                         outputStream.write(buf, 0, len);
                     }
+                }
+            } finally {
+                if (outputBufferId >= 0) {
                     codec.releaseOutputBuffer(outputBufferId, false);
                 }
             }
+        }
 
         return !eof;
     }