1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 /** 17 ****************************************************************************** 18 * @file M4TRAN_transition.h 19 * @brief 20 * @note 21 ****************************************************************************** 22 */ 23 24 #ifndef __M4VFL_TRANSITION_H__ 25 #define __M4VFL_TRANSITION_H__ 26 27 #ifdef __cplusplus 28 extern "C" { 29 #endif 30 typedef unsigned char UInt8; 31 typedef unsigned long UInt32; 32 33 typedef struct S_M4ViComImagePlane 34 { 35 UInt32 u_width; /* active width, in pixels */ 36 UInt32 u_height; /* active height, in lines */ 37 UInt32 u_topleft; /* index of 1st active pixel */ 38 UInt32 u_stride; /* line stride, in bytes */ 39 UInt8 *pac_data; /* buffer address */ 40 } M4ViComImagePlane; 41 42 typedef struct S_M4VFL_modifLumParam 43 { 44 unsigned short lum_factor; 45 unsigned short copy_chroma; 46 } M4VFL_ModifLumParam; 47 48 #define M4VIFI_OK 0 49 #define M4VIFI_ILLEGAL_FRAME_HEIGHT 8 50 #define M4VIFI_ILLEGAL_FRAME_WIDTH 9 51 52 unsigned char M4VFL_modifyLumaByStep(M4ViComImagePlane *plane_in, M4ViComImagePlane *plane_out, 53 M4VFL_ModifLumParam *lum_param, void *user_data); 54 55 unsigned char M4VFL_modifyLumaWithScale(M4ViComImagePlane *plane_in, M4ViComImagePlane *plane_out, 56 unsigned long lum_factor, void *user_data); 57 58 /** 59 ************************************************************************************************* 60 * M4OSA_ERR M4VIFI_ImageBlendingonYUV420 (void *pUserData, 61 * M4VIFI_ImagePlane *pPlaneIn1, 62 * M4VIFI_ImagePlane *pPlaneIn2, 63 * M4VIFI_ImagePlane *pPlaneOut, 64 * M4VIFI_UInt32 Progress) 65 * @brief Blends two YUV 4:2:0 Planar images. 66 * @note Blends YUV420 planar images, 67 * Map the value of progress from (0 - 1000) to (0 - 1024) 68 * Set the range of blendingfactor, 69 * 1. from 0 to (Progress << 1) ;for Progress <= 512 70 * 2. from (( Progress - 512)<< 1) to 1024 ;otherwise 71 * Set the increment of blendingfactor for each element in the image row by the factor, 72 * = (Range-1) / (image width-1) ;for width >= range 73 * = (Range) / (image width) ;otherwise 74 * Loop on each(= i) row of output Y plane (steps of 2) 75 * Loop on each(= j) column of output Y plane (steps of 2) 76 * Get four Y samples and one U & V sample from two input YUV4:2:0 images and 77 * Compute four Y sample and one U & V sample for output YUV4:2:0 image 78 * using the following, 79 * Out(i,j) = blendingfactor(i,j) * In1(i,j)+ (l - blendingfactor(i,j)) * In2(i,j) 80 * end loop column 81 * end loop row. 82 * @param pUserData: (IN) User Specific Parameter 83 * @param pPlaneIn1: (IN) Pointer to an array of image plane structures maintained for Y, U 84 * and V planes. 85 * @param pPlaneIn2: (IN) Pointer to an array of image plane structures maintained for Y, U 86 * and V planes. 87 * @param pPlaneOut: (OUT) Pointer to an array of image plane structures maintained for Y, U 88 * and V planes. 89 * @param Progress: (IN) Progress value (varies between 0 and 1000) 90 * @return M4VIFI_OK: No error 91 * @return M4VIFI_ILLEGAL_FRAME_HEIGHT: Error in height 92 * @return M4VIFI_ILLEGAL_FRAME_WIDTH: Error in width 93 ***********************************************************************************************/ 94 unsigned char M4VIFI_ImageBlendingonYUV420 (void *pUserData, M4ViComImagePlane *pPlaneIn1, 95 M4ViComImagePlane *pPlaneIn2, 96 M4ViComImagePlane *pPlaneOut, UInt32 Progress); 97 98 #ifdef __cplusplus 99 } 100 #endif /* __cplusplus */ 101 102 #endif // __M4VFL_TRANSITION_H__ 103
