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117 lines
3.8 KiB
117 lines
3.8 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_ROTATE_H_
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#define INCLUDE_LIBYUV_ROTATE_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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// Supported rotation.
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typedef enum RotationMode {
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kRotate0 = 0, // No rotation.
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kRotate90 = 90, // Rotate 90 degrees clockwise.
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kRotate180 = 180, // Rotate 180 degrees.
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kRotate270 = 270, // Rotate 270 degrees clockwise.
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// Deprecated.
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kRotateNone = 0,
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kRotateClockwise = 90,
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kRotateCounterClockwise = 270,
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} RotationModeEnum;
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// Rotate I420 frame.
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LIBYUV_API
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int I420Rotate(const uint8* src_y, int src_stride_y,
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const uint8* src_u, int src_stride_u,
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const uint8* src_v, int src_stride_v,
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uint8* dst_y, int dst_stride_y,
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uint8* dst_u, int dst_stride_u,
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uint8* dst_v, int dst_stride_v,
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int src_width, int src_height, enum RotationMode mode);
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// Rotate NV12 input and store in I420.
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LIBYUV_API
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int NV12ToI420Rotate(const uint8* src_y, int src_stride_y,
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const uint8* src_uv, int src_stride_uv,
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uint8* dst_y, int dst_stride_y,
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uint8* dst_u, int dst_stride_u,
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uint8* dst_v, int dst_stride_v,
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int src_width, int src_height, enum RotationMode mode);
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// Rotate a plane by 0, 90, 180, or 270.
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LIBYUV_API
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int RotatePlane(const uint8* src, int src_stride,
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uint8* dst, int dst_stride,
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int src_width, int src_height, enum RotationMode mode);
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// Rotate planes by 90, 180, 270. Deprecated.
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LIBYUV_API
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void RotatePlane90(const uint8* src, int src_stride,
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uint8* dst, int dst_stride,
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int width, int height);
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LIBYUV_API
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void RotatePlane180(const uint8* src, int src_stride,
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uint8* dst, int dst_stride,
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int width, int height);
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LIBYUV_API
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void RotatePlane270(const uint8* src, int src_stride,
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uint8* dst, int dst_stride,
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int width, int height);
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LIBYUV_API
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void RotateUV90(const uint8* src, int src_stride,
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uint8* dst_a, int dst_stride_a,
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uint8* dst_b, int dst_stride_b,
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int width, int height);
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// Rotations for when U and V are interleaved.
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// These functions take one input pointer and
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// split the data into two buffers while
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// rotating them. Deprecated.
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LIBYUV_API
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void RotateUV180(const uint8* src, int src_stride,
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uint8* dst_a, int dst_stride_a,
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uint8* dst_b, int dst_stride_b,
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int width, int height);
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LIBYUV_API
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void RotateUV270(const uint8* src, int src_stride,
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uint8* dst_a, int dst_stride_a,
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uint8* dst_b, int dst_stride_b,
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int width, int height);
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// The 90 and 270 functions are based on transposes.
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// Doing a transpose with reversing the read/write
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// order will result in a rotation by +- 90 degrees.
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// Deprecated.
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LIBYUV_API
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void TransposePlane(const uint8* src, int src_stride,
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uint8* dst, int dst_stride,
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int width, int height);
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LIBYUV_API
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void TransposeUV(const uint8* src, int src_stride,
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uint8* dst_a, int dst_stride_a,
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uint8* dst_b, int dst_stride_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_ROTATE_H_
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