public com.google.protobuf.ByteString getPixelFormatBytes() {
        java.lang.Object ref = pixelFormat_;
        if (ref instanceof String) {
          com.google.protobuf.ByteString b =
              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
          pixelFormat_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }
<pre>
Pixel format to use. The default is `yuv420p`.

Supported pixel formats:

- `yuv420p` pixel format
- `yuv422p` pixel format
- `yuv444p` pixel format
- `yuv420p10` 10-bit HDR pixel format
- `yuv422p10` 10-bit HDR pixel format
- `yuv444p10` 10-bit HDR pixel format
- `yuv420p12` 12-bit HDR pixel format
- `yuv422p12` 12-bit HDR pixel format
- `yuv444p12` 12-bit HDR pixel format
</pre>

<code>string pixel_format = 5;</code>

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