1/*
2 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10
11#ifndef VPX_SCALE_YV12CONFIG_H_
12#define VPX_SCALE_YV12CONFIG_H_
13
14#ifdef __cplusplus
15extern "C" {
16#endif
17
18#include "vpx/vpx_frame_buffer.h"
19#include "vpx/vpx_integer.h"
20
21#define VP8BORDERINPIXELS           32
22#define VP9INNERBORDERINPIXELS      96
23#define VP9_INTERP_EXTEND           4
24#define VP9_ENC_BORDER_IN_PIXELS    160
25#define VP9_DEC_BORDER_IN_PIXELS    0
26
27typedef struct yv12_buffer_config {
28  int   y_width;
29  int   y_height;
30  int   y_crop_width;
31  int   y_crop_height;
32  int   y_stride;
33
34  int   uv_width;
35  int   uv_height;
36  int   uv_crop_width;
37  int   uv_crop_height;
38  int   uv_stride;
39
40  int   alpha_width;
41  int   alpha_height;
42  int   alpha_stride;
43
44  uint8_t *y_buffer;
45  uint8_t *u_buffer;
46  uint8_t *v_buffer;
47  uint8_t *alpha_buffer;
48
49  uint8_t *buffer_alloc;
50  int buffer_alloc_sz;
51  int border;
52  int frame_size;
53
54  int corrupted;
55  int flags;
56
57  int fb_index;
58} YV12_BUFFER_CONFIG;
59
60int vp8_yv12_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
61                                int width, int height, int border);
62int vp8_yv12_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
63                                  int width, int height, int border);
64int vp8_yv12_de_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf);
65
66int vp9_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
67                           int width, int height, int ss_x, int ss_y,
68                           int border);
69
70// Updates the yv12 buffer config with the frame buffer. If cb is not
71// NULL, then libvpx is using the frame buffer callbacks to handle memory.
72// If cb is not NULL, libvpx will call cb with minimum size in bytes needed
73// to decode the current frame. If cb is NULL, libvpx will allocate memory
74// internally to decode the current frame. Returns 0 on success. Returns < 0
75// on failure.
76int vp9_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
77                             int width, int height, int ss_x, int ss_y,
78                             int border,
79                             vpx_codec_frame_buffer_t *fb,
80                             vpx_get_frame_buffer_cb_fn_t cb,
81                             void *cb_priv);
82int vp9_free_frame_buffer(YV12_BUFFER_CONFIG *ybf);
83
84#ifdef __cplusplus
85}
86#endif
87
88#endif  // VPX_SCALE_YV12CONFIG_H_
89