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/vpx_frame_buffer.h"
19 #include "vpx/vpx_integer.h"
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 32
27 typedef struct yv12_buffer_config {
33 /* int yinternal_width; */
40 /* int uvinternal_width; */
49 uint8_t *alpha_buffer;
51 uint8_t *buffer_alloc;
60 int vp8_yv12_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
61 int width, int height, int border);
62 int vp8_yv12_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
63 int width, int height, int border);
64 int vp8_yv12_de_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf);
66 int vp9_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
67 int width, int height, int ss_x, int ss_y,
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
76 int vp9_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
77 int width, int height, int ss_x, int ss_y,
79 vpx_codec_frame_buffer_t *fb,
80 vpx_get_frame_buffer_cb_fn_t cb,
82 int vp9_free_frame_buffer(YV12_BUFFER_CONFIG *ybf);
88 #endif // VPX_SCALE_YV12CONFIG_H_