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/*
* Copyright (c) 2010 The WebM 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.
*/
#ifndef YV12_CONFIG_H
#define YV12_CONFIG_H
#ifdef __cplusplus
extern "C"
{
#endif
#define VP7BORDERINPIXELS 48
#if CONFIG_ENHANCED_INTERP
#define VP8BORDERINPIXELS 64
#define INTERP_EXTEND 4
#else
#define VP8BORDERINPIXELS 32
#define INTERP_EXTEND 3
#endif
/*************************************
For INT_YUV:
Y = (R+G*2+B)/4;
U = (R-B)/2;
V = (G*2 - R - B)/4;
And
R = Y+U-V;
G = Y+V;
B = Y-U-V;
************************************/
typedef enum
{
REG_YUV = 0, /* Regular yuv */
INT_YUV = 1 /* The type of yuv that can be tranfer to and from RGB through integer transform */
}
YUV_TYPE;
typedef struct {
int y_width;
int y_height;
int y_stride;
/* int yinternal_width; */
int uv_width;
int uv_height;
int uv_stride;
/* int uvinternal_width; */
unsigned char *y_buffer;
unsigned char *u_buffer;
unsigned char *v_buffer;
unsigned char *buffer_alloc;
int border;
int frame_size;
YUV_TYPE clrtype;
int corrupted;
int flags;
} YV12_BUFFER_CONFIG;
int vp8_yv12_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height, int border);
int vp8_yv12_de_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf);
#ifdef __cplusplus
}
#endif
#endif /*YV12_CONFIG_H*/
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