2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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.
11 #ifndef VPX_SCALE_YV12CONFIG_H_
12 #define VPX_SCALE_YV12CONFIG_H_
18 #include "./vpx_config.h"
19 #include "vpx/vpx_codec.h"
20 #include "vpx/vpx_frame_buffer.h"
21 #include "vpx/vpx_integer.h"
23 #define VP8BORDERINPIXELS 32
24 #define VP9INNERBORDERINPIXELS 96
25 #define VP9_INTERP_EXTEND 4
26 #define VP9_ENC_BORDER_IN_PIXELS 160
27 #define VP9_DEC_BORDER_IN_PIXELS 32
29 typedef struct yv12_buffer_config {
49 uint8_t *alpha_buffer;
51 uint8_t *buffer_alloc;
57 unsigned int bit_depth;
58 vpx_color_space_t color_space;
59 vpx_color_range_t color_range;
67 #define YV12_FLAG_HIGHBITDEPTH 8
69 int vp8_yv12_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height,
71 int vp8_yv12_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width,
72 int height, int border);
73 int vp8_yv12_de_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf);
75 int vpx_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height,
77 #if CONFIG_VP9_HIGHBITDEPTH
80 int border, int byte_alignment);
82 // Updates the yv12 buffer config with the frame buffer. |byte_alignment| must
83 // be a power of 2, from 32 to 1024. 0 sets legacy alignment. If cb is not
84 // NULL, then libvpx is using the frame buffer callbacks to handle memory.
85 // If cb is not NULL, libvpx will call cb with minimum size in bytes needed
86 // to decode the current frame. If cb is NULL, libvpx will allocate memory
87 // internally to decode the current frame. Returns 0 on success. Returns < 0
89 int vpx_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height,
91 #if CONFIG_VP9_HIGHBITDEPTH
94 int border, int byte_alignment,
95 vpx_codec_frame_buffer_t *fb,
96 vpx_get_frame_buffer_cb_fn_t cb, void *cb_priv);
97 int vpx_free_frame_buffer(YV12_BUFFER_CONFIG *ybf);
103 #endif // VPX_SCALE_YV12CONFIG_H_