1 /*
2 * Copyright (c) 2016, Alliance for Open Media. All rights reserved
3 *
4 * This source code is subject to the terms of the BSD 2 Clause License and
5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6 * was not distributed with this source code in the LICENSE file, you can
7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
8 * Media Patent License 1.0 was not distributed with this source code in the
9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10 */
11
12 #ifndef AOM_AV1_COMMON_RESIZE_H_
13 #define AOM_AV1_COMMON_RESIZE_H_
14
15 #include <stdio.h>
16 #include "aom/aom_integer.h"
17 #include "av1/common/onyxc_int.h"
18
19 #ifdef __cplusplus
20 extern "C" {
21 #endif
22
23 void av1_resize_plane(const uint8_t *const input, int height, int width,
24 int in_stride, uint8_t *output, int height2, int width2,
25 int out_stride);
26 void av1_upscale_plane_double_prec(const double *const input, int height,
27 int width, int in_stride, double *output,
28 int height2, int width2, int out_stride);
29 void av1_resize_frame420(const uint8_t *const y, int y_stride,
30 const uint8_t *const u, const uint8_t *const v,
31 int uv_stride, int height, int width, uint8_t *oy,
32 int oy_stride, uint8_t *ou, uint8_t *ov,
33 int ouv_stride, int oheight, int owidth);
34 void av1_resize_frame422(const uint8_t *const y, int y_stride,
35 const uint8_t *const u, const uint8_t *const v,
36 int uv_stride, int height, int width, uint8_t *oy,
37 int oy_stride, uint8_t *ou, uint8_t *ov,
38 int ouv_stride, int oheight, int owidth);
39 void av1_resize_frame444(const uint8_t *const y, int y_stride,
40 const uint8_t *const u, const uint8_t *const v,
41 int uv_stride, int height, int width, uint8_t *oy,
42 int oy_stride, uint8_t *ou, uint8_t *ov,
43 int ouv_stride, int oheight, int owidth);
44
45 void av1_highbd_resize_plane(const uint8_t *const input, int height, int width,
46 int in_stride, uint8_t *output, int height2,
47 int width2, int out_stride, int bd);
48 void av1_highbd_resize_frame420(const uint8_t *const y, int y_stride,
49 const uint8_t *const u, const uint8_t *const v,
50 int uv_stride, int height, int width,
51 uint8_t *oy, int oy_stride, uint8_t *ou,
52 uint8_t *ov, int ouv_stride, int oheight,
53 int owidth, int bd);
54 void av1_highbd_resize_frame422(const uint8_t *const y, int y_stride,
55 const uint8_t *const u, const uint8_t *const v,
56 int uv_stride, int height, int width,
57 uint8_t *oy, int oy_stride, uint8_t *ou,
58 uint8_t *ov, int ouv_stride, int oheight,
59 int owidth, int bd);
60 void av1_highbd_resize_frame444(const uint8_t *const y, int y_stride,
61 const uint8_t *const u, const uint8_t *const v,
62 int uv_stride, int height, int width,
63 uint8_t *oy, int oy_stride, uint8_t *ou,
64 uint8_t *ov, int ouv_stride, int oheight,
65 int owidth, int bd);
66 void av1_resize_and_extend_frame(const YV12_BUFFER_CONFIG *src,
67 YV12_BUFFER_CONFIG *dst, int bd,
68 const int num_planes);
69
70 void av1_upscale_normative_rows(const AV1_COMMON *cm, const uint8_t *src,
71 int src_stride, uint8_t *dst, int dst_stride,
72 int plane, int rows);
73 void av1_upscale_normative_and_extend_frame(const AV1_COMMON *cm,
74 const YV12_BUFFER_CONFIG *src,
75 YV12_BUFFER_CONFIG *dst);
76
77 YV12_BUFFER_CONFIG *av1_scale_if_required(AV1_COMMON *cm,
78 YV12_BUFFER_CONFIG *unscaled,
79 YV12_BUFFER_CONFIG *scaled);
80
81 // Calculates the scaled dimensions from the given original dimensions and the
82 // resize scale denominator.
83 void av1_calculate_scaled_size(int *width, int *height, int resize_denom);
84
85 // Similar to above, but calculates scaled dimensions after superres from the
86 // given original dimensions and superres scale denominator.
87 void av1_calculate_scaled_superres_size(int *width, int *height,
88 int superres_denom);
89
90 // Inverse of av1_calculate_scaled_superres_size() above: calculates the
91 // original dimensions from the given scaled dimensions and the scale
92 // denominator.
93 void av1_calculate_unscaled_superres_size(int *width, int *height, int denom);
94
95 void av1_superres_upscale(AV1_COMMON *cm, BufferPool *const pool);
96
97 // Returns 1 if a superres upscaled frame is scaled and 0 otherwise.
av1_superres_scaled(const AV1_COMMON * cm)98 static INLINE int av1_superres_scaled(const AV1_COMMON *cm) {
99 // Note: for some corner cases (e.g. cm->width of 1), there may be no scaling
100 // required even though cm->superres_scale_denominator != SCALE_NUMERATOR.
101 // So, the following check is more accurate.
102 return !(cm->width == cm->superres_upscaled_width);
103 }
104
105 #define UPSCALE_NORMATIVE_TAPS 8
106 extern const int16_t av1_resize_filter_normative[1 << RS_SUBPEL_BITS]
107 [UPSCALE_NORMATIVE_TAPS];
108
109 int32_t av1_get_upscale_convolve_step(int in_length, int out_length);
110
111 #ifdef __cplusplus
112 } // extern "C"
113 #endif
114
115 #endif // AOM_AV1_COMMON_RESIZE_H_
116