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mv SharpYuvEstimate420Risk to extras/

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There's no need for this in libsharpyuv currently. This avoids an ABI
bump and library size increase.

Change-Id: I3e4c79052fdb4d628a2d36491547233dd0b6dc34
This commit is contained in:
James Zern
2024-01-11 18:02:16 -08:00
parent e78e924f84
commit 5efd6300dc
14 changed files with 207 additions and 217 deletions
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27
extras/sharpyuv_risk_table.h Normal file
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// Copyright 2023 Google Inc. All Rights Reserved.
//
// Use of this source code is governed by a BSD-style license
// that can be found in the COPYING file in the root of the source
// tree. An additional intellectual property rights grant can be found
// in the file PATENTS. All contributing project authors may
// be found in the AUTHORS file in the root of the source tree.
// -----------------------------------------------------------------------------
//
// Precomputed data for 420 risk estimation.
#ifndef WEBP_EXTRAS_SHARPYUV_RISK_TABLE_H_
#define WEBP_EXTRAS_SHARPYUV_RISK_TABLE_H_
#include "src/webp/types.h"
extern const int kSharpYuvPrecomputedRiskYuvSampling;
// Table of precomputed risk scores when chroma subsampling images with two
// given colors.
// Since precomputing values for all possible YUV colors would create a huge
// table, the YUV space (i.e. [0, 255]^3) is reduced to
// [0, kSharpYuvPrecomputedRiskYuvSampling-1]^3
// where 255 maps to kSharpYuvPrecomputedRiskYuvSampling-1.
// Table size: kSharpYuvPrecomputedRiskYuvSampling^6 bytes or 114 KiB
extern const uint8_t kSharpYuvPrecomputedRisk[];
#endif // WEBP_EXTRAS_SHARPYUV_RISK_TABLE_H_