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https://github.com/webmproject/libwebp.git
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95509f9914
same functionality, but better code layout. What changed: * don't trash the palette_[] in EncodePalette(), so it can be re-used * split generation of image from bit-stream coding * move all the delta-palette code to delta_palettization.c, and only have 1 entry point there WebPSearchOptimalDeltaPalette() * minimize the number of "#ifdef WEBP_EXPERIMENTAL_FEATURES" in vp8l.c * clarify the TransformBuffer stuff. more clean-up to come here... This should make experimenting with delta-palettization easier and more compartimentalized. Change-Id: Iadaa90e6c5b9dabc7791aec2530e18c973a94610
26 lines
1009 B
C
26 lines
1009 B
C
// Copyright 2015 Google Inc. All Rights Reserved.
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//
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// Use of this source code is governed by a BSD-style license
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// that can be found in the COPYING file in the root of the source
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// tree. An additional intellectual property rights grant can be found
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// in the file PATENTS. All contributing project authors may
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// be found in the AUTHORS file in the root of the source tree.
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// -----------------------------------------------------------------------------
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//
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// Author: Mislav Bradac (mislavm@google.com)
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//
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#ifndef WEBP_ENC_DELTA_PALETTIZATION_H_
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#define WEBP_ENC_DELTA_PALETTIZATION_H_
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#include "../webp/encode.h"
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#include "../enc/vp8li.h"
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// Replaces enc->argb_[] input by a palettizable approximation of it,
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// and generates optimal enc->palette_[].
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// This function can revert enc->use_palette_ / enc->use_predict_ flag
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// if delta-palettization is not producing expected saving.
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WebPEncodingError WebPSearchOptimalDeltaPalette(VP8LEncoder* const enc);
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#endif // WEBP_ENC_DELTA_PALETTIZATION_H_
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