public static Builder newBuilder(
        com.google.cloud.video.transcoder.v1.VideoStream.H265CodecSettings prototype) {
      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
    }
<pre>
Enforces the specified codec preset. The default is `veryfast`. The
available options are
[FFmpeg-compatible](https://trac.ffmpeg.org/wiki/Encode/H.265).
Note that certain values for this field may cause the
transcoder to override other fields you set in the `H265CodecSettings`
message.
</pre>

<code>string preset = 19;</code>

@return The bytes for preset.
java-video-transcoder/proto-google-cloud-video-transcoder-v1/src/main/java/com/google/cloud/video/transcoder/v1/VideoStream.java