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/*
* Copyright (c) 2010 The VP8 project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license and patent
* grant that can be found in the LICENSE file in the root of the source
* tree. 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
#define VP8BORDERINPIXELS 32
/*************************************
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;
} 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);
int vp8_yv12_black_frame_buffer(YV12_BUFFER_CONFIG *ybf);
#ifdef __cplusplus
}
#endif
#endif //YV12_CONFIG_H
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