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-rw-r--r--thirdparties/iphone/include/libyuv/libyuv/compare.h73
1 files changed, 73 insertions, 0 deletions
diff --git a/thirdparties/iphone/include/libyuv/libyuv/compare.h b/thirdparties/iphone/include/libyuv/libyuv/compare.h
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+++ b/thirdparties/iphone/include/libyuv/libyuv/compare.h
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+/*
+ * Copyright 2011 The LibYuv Project Authors. All rights reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE 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.
+ */
+
+#ifndef INCLUDE_LIBYUV_COMPARE_H_ // NOLINT
+#define INCLUDE_LIBYUV_COMPARE_H_
+
+#include "libyuv/basic_types.h"
+
+#ifdef __cplusplus
+namespace libyuv {
+extern "C" {
+#endif
+
+// Compute a hash for specified memory. Seed of 5381 recommended.
+LIBYUV_API
+uint32 HashDjb2(const uint8* src, uint64 count, uint32 seed);
+
+// Sum Square Error - used to compute Mean Square Error or PSNR.
+LIBYUV_API
+uint64 ComputeSumSquareError(const uint8* src_a,
+ const uint8* src_b, int count);
+
+LIBYUV_API
+uint64 ComputeSumSquareErrorPlane(const uint8* src_a, int stride_a,
+ const uint8* src_b, int stride_b,
+ int width, int height);
+
+static const int kMaxPsnr = 128;
+
+LIBYUV_API
+double SumSquareErrorToPsnr(uint64 sse, uint64 count);
+
+LIBYUV_API
+double CalcFramePsnr(const uint8* src_a, int stride_a,
+ const uint8* src_b, int stride_b,
+ int width, int height);
+
+LIBYUV_API
+double I420Psnr(const uint8* src_y_a, int stride_y_a,
+ const uint8* src_u_a, int stride_u_a,
+ const uint8* src_v_a, int stride_v_a,
+ const uint8* src_y_b, int stride_y_b,
+ const uint8* src_u_b, int stride_u_b,
+ const uint8* src_v_b, int stride_v_b,
+ int width, int height);
+
+LIBYUV_API
+double CalcFrameSsim(const uint8* src_a, int stride_a,
+ const uint8* src_b, int stride_b,
+ int width, int height);
+
+LIBYUV_API
+double I420Ssim(const uint8* src_y_a, int stride_y_a,
+ const uint8* src_u_a, int stride_u_a,
+ const uint8* src_v_a, int stride_v_a,
+ const uint8* src_y_b, int stride_y_b,
+ const uint8* src_u_b, int stride_u_b,
+ const uint8* src_v_b, int stride_v_b,
+ int width, int height);
+
+#ifdef __cplusplus
+} // extern "C"
+} // namespace libyuv
+#endif
+
+#endif // INCLUDE_LIBYUV_COMPARE_H_ NOLINT
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