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 VP7BORDERINPIXELS 48 20 #define VP8BORDERINPIXELS 32 21 22 /************************************* 23 For INT_YUV: 24 25 Y = (R+G*2+B)/4; 26 U = (R-B)/2; 27 V = (G*2 - R - B)/4; 28 And 29 R = Y+U-V; 30 G = Y+V; 31 B = Y-U-V; 32 ************************************/ 33 typedef enum 34 { 35 REG_YUV = 0, /* Regular yuv */ 36 INT_YUV = 1 /* The type of yuv that can be tranfer to and from RGB through integer transform */ 37 } 38 YUV_TYPE; 39 40 typedef struct 41 { 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 } YV12_BUFFER_CONFIG; 61 62 int vp8_yv12_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height, int border); 63 int vp8_yv12_de_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf); 64 int vp8_yv12_black_frame_buffer(YV12_BUFFER_CONFIG *ybf); 65 66 #ifdef __cplusplus 67 } 68 #endif 69 70 71 #endif /*YV12_CONFIG_H*/ 72
