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Diffstat (limited to 'media/libvpx/libvpx/third_party/libyuv/include/libyuv/compare.h')
-rw-r--r-- | media/libvpx/libvpx/third_party/libyuv/include/libyuv/compare.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/third_party/libyuv/include/libyuv/compare.h b/media/libvpx/libvpx/third_party/libyuv/include/libyuv/compare.h new file mode 100644 index 0000000000..3353ad71c6 --- /dev/null +++ b/media/libvpx/libvpx/third_party/libyuv/include/libyuv/compare.h @@ -0,0 +1,111 @@ +/* + * 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_ +#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_t HashDjb2(const uint8_t* src, uint64_t count, uint32_t seed); + +// Hamming Distance +LIBYUV_API +uint64_t ComputeHammingDistance(const uint8_t* src_a, + const uint8_t* src_b, + int count); + +// Scan an opaque argb image and return fourcc based on alpha offset. +// Returns FOURCC_ARGB, FOURCC_BGRA, or 0 if unknown. +LIBYUV_API +uint32_t ARGBDetect(const uint8_t* argb, + int stride_argb, + int width, + int height); + +// Sum Square Error - used to compute Mean Square Error or PSNR. +LIBYUV_API +uint64_t ComputeSumSquareError(const uint8_t* src_a, + const uint8_t* src_b, + int count); + +LIBYUV_API +uint64_t ComputeSumSquareErrorPlane(const uint8_t* src_a, + int stride_a, + const uint8_t* src_b, + int stride_b, + int width, + int height); + +static const int kMaxPsnr = 128; + +LIBYUV_API +double SumSquareErrorToPsnr(uint64_t sse, uint64_t count); + +LIBYUV_API +double CalcFramePsnr(const uint8_t* src_a, + int stride_a, + const uint8_t* src_b, + int stride_b, + int width, + int height); + +LIBYUV_API +double I420Psnr(const uint8_t* src_y_a, + int stride_y_a, + const uint8_t* src_u_a, + int stride_u_a, + const uint8_t* src_v_a, + int stride_v_a, + const uint8_t* src_y_b, + int stride_y_b, + const uint8_t* src_u_b, + int stride_u_b, + const uint8_t* src_v_b, + int stride_v_b, + int width, + int height); + +LIBYUV_API +double CalcFrameSsim(const uint8_t* src_a, + int stride_a, + const uint8_t* src_b, + int stride_b, + int width, + int height); + +LIBYUV_API +double I420Ssim(const uint8_t* src_y_a, + int stride_y_a, + const uint8_t* src_u_a, + int stride_u_a, + const uint8_t* src_v_a, + int stride_v_a, + const uint8_t* src_y_b, + int stride_y_b, + const uint8_t* src_u_b, + int stride_u_b, + const uint8_t* src_v_b, + int stride_v_b, + int width, + int height); + +#ifdef __cplusplus +} // extern "C" +} // namespace libyuv +#endif + +#endif // INCLUDE_LIBYUV_COMPARE_H_ |