1// Copyright 2015 Google Inc. All Rights Reserved.
2//
3// Use of this source code is governed by a BSD-style license
4// that can be found in the COPYING file in the root of the source
5// tree. An additional intellectual property rights grant can be found
6// in the file PATENTS. All contributing project authors may
7// be found in the AUTHORS file in the root of the source tree.
8// -----------------------------------------------------------------------------
9//
10// Author: Mislav Bradac (mislavm@google.com)
11//
12
13#ifndef WEBP_ENC_DELTA_PALETTIZATION_H_
14#define WEBP_ENC_DELTA_PALETTIZATION_H_
15
16#include "../webp/encode.h"
17#include "../enc/vp8li_enc.h"
18
19// Replaces enc->argb_[] input by a palettizable approximation of it,
20// and generates optimal enc->palette_[].
21// This function can revert enc->use_palette_ / enc->use_predict_ flag
22// if delta-palettization is not producing expected saving.
23WebPEncodingError WebPSearchOptimalDeltaPalette(VP8LEncoder* const enc);
24
25#endif // WEBP_ENC_DELTA_PALETTIZATION_H_
26