/* * 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.
*/
// Scale a YUV plane. // Returns 0 if successful.
LIBYUV_API int ScalePlane(const uint8_t* src, int src_stride, int src_width, int src_height,
uint8_t* dst, int dst_stride, int dst_width, int dst_height, enum FilterMode filtering);
LIBYUV_API int ScalePlane_16(const uint16_t* src, int src_stride, int src_width, int src_height,
uint16_t* dst, int dst_stride, int dst_width, int dst_height, enum FilterMode filtering);
// Sample is expected to be in the low 12 bits.
LIBYUV_API int ScalePlane_12(const uint16_t* src, int src_stride, int src_width, int src_height,
uint16_t* dst, int dst_stride, int dst_width, int dst_height, enum FilterMode filtering);
// Scales a YUV 4:2:0 image from the src width and height to the // dst width and height. // If filtering is kFilterNone, a simple nearest-neighbor algorithm is // used. This produces basic (blocky) quality at the fastest speed. // If filtering is kFilterBilinear, interpolation is used to produce a better // quality image, at the expense of speed. // If filtering is kFilterBox, averaging is used to produce ever better // quality image, at further expense of speed. // Returns 0 if successful.
LIBYUV_API int I420Scale(const uint8_t* src_y, int src_stride_y, const uint8_t* src_u, int src_stride_u, const uint8_t* src_v, int src_stride_v, int src_width, int src_height,
uint8_t* dst_y, int dst_stride_y,
uint8_t* dst_u, int dst_stride_u,
uint8_t* dst_v, int dst_stride_v, int dst_width, int dst_height, enum FilterMode filtering);
LIBYUV_API int I420Scale_16(const uint16_t* src_y, int src_stride_y, const uint16_t* src_u, int src_stride_u, const uint16_t* src_v, int src_stride_v, int src_width, int src_height,
uint16_t* dst_y, int dst_stride_y,
uint16_t* dst_u, int dst_stride_u,
uint16_t* dst_v, int dst_stride_v, int dst_width, int dst_height, enum FilterMode filtering);
LIBYUV_API int I420Scale_12(const uint16_t* src_y, int src_stride_y, const uint16_t* src_u, int src_stride_u, const uint16_t* src_v, int src_stride_v, int src_width, int src_height,
uint16_t* dst_y, int dst_stride_y,
uint16_t* dst_u, int dst_stride_u,
uint16_t* dst_v, int dst_stride_v, int dst_width, int dst_height, enum FilterMode filtering);
// Scales a YUV 4:4:4 image from the src width and height to the // dst width and height. // If filtering is kFilterNone, a simple nearest-neighbor algorithm is // used. This produces basic (blocky) quality at the fastest speed. // If filtering is kFilterBilinear, interpolation is used to produce a better // quality image, at the expense of speed. // If filtering is kFilterBox, averaging is used to produce ever better // quality image, at further expense of speed. // Returns 0 if successful.
LIBYUV_API int I444Scale(const uint8_t* src_y, int src_stride_y, const uint8_t* src_u, int src_stride_u, const uint8_t* src_v, int src_stride_v, int src_width, int src_height,
uint8_t* dst_y, int dst_stride_y,
uint8_t* dst_u, int dst_stride_u,
uint8_t* dst_v, int dst_stride_v, int dst_width, int dst_height, enum FilterMode filtering);
LIBYUV_API int I444Scale_16(const uint16_t* src_y, int src_stride_y, const uint16_t* src_u, int src_stride_u, const uint16_t* src_v, int src_stride_v, int src_width, int src_height,
uint16_t* dst_y, int dst_stride_y,
uint16_t* dst_u, int dst_stride_u,
uint16_t* dst_v, int dst_stride_v, int dst_width, int dst_height, enum FilterMode filtering);
LIBYUV_API int I444Scale_12(const uint16_t* src_y, int src_stride_y, const uint16_t* src_u, int src_stride_u, const uint16_t* src_v, int src_stride_v, int src_width, int src_height,
uint16_t* dst_y, int dst_stride_y,
uint16_t* dst_u, int dst_stride_u,
uint16_t* dst_v, int dst_stride_v, int dst_width, int dst_height, enum FilterMode filtering);
// Scales a YUV 4:2:2 image from the src width and height to the // dst width and height. // If filtering is kFilterNone, a simple nearest-neighbor algorithm is // used. This produces basic (blocky) quality at the fastest speed. // If filtering is kFilterBilinear, interpolation is used to produce a better // quality image, at the expense of speed. // If filtering is kFilterBox, averaging is used to produce ever better // quality image, at further expense of speed. // Returns 0 if successful.
LIBYUV_API int I422Scale(const uint8_t* src_y, int src_stride_y, const uint8_t* src_u, int src_stride_u, const uint8_t* src_v, int src_stride_v, int src_width, int src_height,
uint8_t* dst_y, int dst_stride_y,
uint8_t* dst_u, int dst_stride_u,
uint8_t* dst_v, int dst_stride_v, int dst_width, int dst_height, enum FilterMode filtering);
LIBYUV_API int I422Scale_16(const uint16_t* src_y, int src_stride_y, const uint16_t* src_u, int src_stride_u, const uint16_t* src_v, int src_stride_v, int src_width, int src_height,
uint16_t* dst_y, int dst_stride_y,
uint16_t* dst_u, int dst_stride_u,
uint16_t* dst_v, int dst_stride_v, int dst_width, int dst_height, enum FilterMode filtering);
LIBYUV_API int I422Scale_12(const uint16_t* src_y, int src_stride_y, const uint16_t* src_u, int src_stride_u, const uint16_t* src_v, int src_stride_v, int src_width, int src_height,
uint16_t* dst_y, int dst_stride_y,
uint16_t* dst_u, int dst_stride_u,
uint16_t* dst_v, int dst_stride_v, int dst_width, int dst_height, enum FilterMode filtering);
// Scales an NV12 image from the src width and height to the // dst width and height. // If filtering is kFilterNone, a simple nearest-neighbor algorithm is // used. This produces basic (blocky) quality at the fastest speed. // If filtering is kFilterBilinear, interpolation is used to produce a better // quality image, at the expense of speed. // kFilterBox is not supported for the UV channel and will be treated as // bilinear. // Returns 0 if successful.
LIBYUV_API int NV12Scale(const uint8_t* src_y, int src_stride_y, const uint8_t* src_uv, int src_stride_uv, int src_width, int src_height,
uint8_t* dst_y, int dst_stride_y,
uint8_t* dst_uv, int dst_stride_uv, int dst_width, int dst_height, enum FilterMode filtering);
LIBYUV_API int NV24Scale(const uint8_t* src_y, int src_stride_y, const uint8_t* src_uv, int src_stride_uv, int src_width, int src_height,
uint8_t* dst_y, int dst_stride_y,
uint8_t* dst_uv, int dst_stride_uv, int dst_width, int dst_height, enum FilterMode filtering);
#ifdef __cplusplus // Legacy API. Deprecated.
LIBYUV_API int Scale(const uint8_t* src_y, const uint8_t* src_u, const uint8_t* src_v, int src_stride_y, int src_stride_u, int src_stride_v, int src_width, int src_height,
uint8_t* dst_y,
uint8_t* dst_u,
uint8_t* dst_v, int dst_stride_y, int dst_stride_u, int dst_stride_v, int dst_width, int dst_height,
LIBYUV_BOOL interpolate);
// For testing, allow disabling of specialized scalers.
LIBYUV_API void SetUseReferenceImpl(LIBYUV_BOOL use); #endif// __cplusplus
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