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 12 #ifndef YV12_CONFIG_H 13 #define YV12_CONFIG_H 14 #ifdef __cplusplus 15 extern "C" 16 { 17 #endif 18 19 #define VP8BORDERINPIXELS 32 20 #define VP9BORDERINPIXELS 64 21 #define VP9_INTERP_EXTEND 4 22 23 /************************************* 24 For INT_YUV: 25 26 Y = (R+G*2+B)/4; 27 U = (R-B)/2; 28 V = (G*2 - R - B)/4; 29 And 30 R = Y+U-V; 31 G = Y+V; 32 B = Y-U-V; 33 ************************************/ 34 typedef enum 35 { 36 REG_YUV = 0, /* Regular yuv */ 37 INT_YUV = 1 /* The type of yuv that can be tranfer to and from RGB through integer transform */ 38 } 39 YUV_TYPE; 40 41 typedef struct yv12_buffer_config { 42 int y_width; 43 int y_height; 44 int y_stride; 45 /* int yinternal_width; */ 46 47 int uv_width; 48 int uv_height; 49 int uv_stride; 50 /* int uvinternal_width; */ 51 52 unsigned char *y_buffer; 53 unsigned char *u_buffer; 54 unsigned char *v_buffer; 55 56 unsigned char *buffer_alloc; 57 int border; 58 int frame_size; 59 YUV_TYPE clrtype; 60 61 int corrupted; 62 int flags; 63 } YV12_BUFFER_CONFIG; 64 65 int vp8_yv12_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height, int border); 66 int vp8_yv12_de_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf); 67 68 #ifdef __cplusplus 69 } 70 #endif 71 72 73 #endif /*YV12_CONFIG_H*/ 74
