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https://chromium.googlesource.com/libyuv/libyuv
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92e22cf5b6
TBR=braveyao@chromium.org Bug: libyuv:774 Test: git cl lint Change-Id: I51cf8107a8db17fbc9952d610f3e4d7aac5aa743 Reviewed-on: https://chromium-review.googlesource.com/882217 Reviewed-by: Frank Barchard <fbarchard@chromium.org>
112 lines
3.3 KiB
C++
112 lines
3.3 KiB
C++
/*
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* Copyright 2011 The LibYuv Project Authors. 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 LICENSE 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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#ifndef INCLUDE_LIBYUV_COMPARE_H_
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#define INCLUDE_LIBYUV_COMPARE_H_
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#include "libyuv/basic_types.h"
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#ifdef __cplusplus
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namespace libyuv {
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extern "C" {
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#endif
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// Compute a hash for specified memory. Seed of 5381 recommended.
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LIBYUV_API
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uint32_t HashDjb2(const uint8_t* src, uint64_t count, uint32_t seed);
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// Hamming Distance
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LIBYUV_API
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uint64_t ComputeHammingDistance(const uint8_t* src_a,
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const uint8_t* src_b,
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int count);
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// Scan an opaque argb image and return fourcc based on alpha offset.
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// Returns FOURCC_ARGB, FOURCC_BGRA, or 0 if unknown.
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LIBYUV_API
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uint32_t ARGBDetect(const uint8_t* argb,
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int stride_argb,
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int width,
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int height);
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// Sum Square Error - used to compute Mean Square Error or PSNR.
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LIBYUV_API
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uint64_t ComputeSumSquareError(const uint8_t* src_a,
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const uint8_t* src_b,
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int count);
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LIBYUV_API
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uint64_t ComputeSumSquareErrorPlane(const uint8_t* src_a,
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int stride_a,
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const uint8_t* src_b,
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int stride_b,
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int width,
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int height);
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static const int kMaxPsnr = 128;
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LIBYUV_API
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double SumSquareErrorToPsnr(uint64_t sse, uint64_t count);
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LIBYUV_API
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double CalcFramePsnr(const uint8_t* src_a,
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int stride_a,
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const uint8_t* src_b,
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int stride_b,
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int width,
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int height);
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LIBYUV_API
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double I420Psnr(const uint8_t* src_y_a,
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int stride_y_a,
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const uint8_t* src_u_a,
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int stride_u_a,
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const uint8_t* src_v_a,
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int stride_v_a,
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const uint8_t* src_y_b,
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int stride_y_b,
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const uint8_t* src_u_b,
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int stride_u_b,
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const uint8_t* src_v_b,
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int stride_v_b,
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int width,
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int height);
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LIBYUV_API
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double CalcFrameSsim(const uint8_t* src_a,
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int stride_a,
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const uint8_t* src_b,
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int stride_b,
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int width,
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int height);
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LIBYUV_API
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double I420Ssim(const uint8_t* src_y_a,
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int stride_y_a,
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const uint8_t* src_u_a,
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int stride_u_a,
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const uint8_t* src_v_a,
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int stride_v_a,
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const uint8_t* src_y_b,
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int stride_y_b,
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const uint8_t* src_u_b,
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int stride_u_b,
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const uint8_t* src_v_b,
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int stride_v_b,
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int width,
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int height);
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#ifdef __cplusplus
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} // extern "C"
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} // namespace libyuv
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#endif
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#endif // INCLUDE_LIBYUV_COMPARE_H_
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