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78 lines
2.5 KiB
78 lines
2.5 KiB
/*
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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 HashDjb2(const uint8* src, uint64 count, uint32 seed);
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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 ARGBDetect(const uint8* argb, int stride_argb, int width, 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 ComputeSumSquareError(const uint8* src_a,
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const uint8* src_b, int count);
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LIBYUV_API
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uint64 ComputeSumSquareErrorPlane(const uint8* src_a, int stride_a,
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const uint8* src_b, int stride_b,
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int width, int height);
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static const int kMaxPsnr = 128;
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LIBYUV_API
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double SumSquareErrorToPsnr(uint64 sse, uint64 count);
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LIBYUV_API
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double CalcFramePsnr(const uint8* src_a, int stride_a,
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const uint8* src_b, int stride_b,
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int width, int height);
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LIBYUV_API
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double I420Psnr(const uint8* src_y_a, int stride_y_a,
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const uint8* src_u_a, int stride_u_a,
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const uint8* src_v_a, int stride_v_a,
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const uint8* src_y_b, int stride_y_b,
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const uint8* src_u_b, int stride_u_b,
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const uint8* src_v_b, int stride_v_b,
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int width, int height);
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LIBYUV_API
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double CalcFrameSsim(const uint8* src_a, int stride_a,
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const uint8* src_b, int stride_b,
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int width, int height);
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LIBYUV_API
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double I420Ssim(const uint8* src_y_a, int stride_y_a,
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const uint8* src_u_a, int stride_u_a,
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const uint8* src_v_a, int stride_v_a,
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const uint8* src_y_b, int stride_y_b,
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const uint8* src_u_b, int stride_u_b,
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const uint8* src_v_b, int stride_v_b,
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int width, 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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