114 lines
3.2 KiB
C
114 lines
3.2 KiB
C
/*
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* Copyright (c) 2022 Rockchip Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#ifndef _RK_ISPFEC_API_H_
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#define _RK_ISPFEC_API_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct rk_ispfec_ctx_s rk_ispfec_ctx_t;
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enum rk_ispfec_update_mesh_mode {
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RK_ISPFEC_UPDATE_MESH_ONLINE = 0, // generate lut online
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RK_ISPFEC_UPDATE_MESH_FROM_FILE, // external file import mesh
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};
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enum rk_ispfec_correct_direction {
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RK_ISPFEC_CORRECT_DIRECTION_X = 0x1,
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RK_ISPFEC_CORRECT_DIRECTION_Y,
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RK_ISPFEC_CORRECT_DIRECTION_XY
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};
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enum rk_ispfec_correct_style {
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RK_ISPFEC_KEEP_ASPECT_RATIO_REDUCE_FOV = 0x1,
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RK_ISPFEC_COMPRES_IMAGE_KEEP_FOV,
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};
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/**
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* the following prarams are only effective in 'RK_ISPFEC_UPDATE_MESH_ON_LINE'.
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*
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* @light_center: the optical center of the lens.
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* @coefficient: the distortion coefficient of the lens.
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* @direction: configure the correction direction of the generated mesh.
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* @style: configure the correction style of the generated mesh.
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* @correct_level: the distortion type of FEC.
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*/
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typedef struct gen_mesh_online_info_s {
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double light_center[2];
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double coeff[4];
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enum rk_ispfec_correct_direction direction;
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enum rk_ispfec_correct_style style;
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int correct_level;
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} gen_mesh_online_info_t;
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typedef struct mesh_info_s {
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int dmaFd;
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void* vir_addr;
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int size;
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char mesh_file[64];
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} mesh_info_t;
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typedef struct rk_ispfec_cfg_s {
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// 输入输出的分辨率
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int in_width;
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int in_height;
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int out_width;
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int out_height;
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// 输入输出的 v4l2 fmt
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int in_fourcc;
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int out_fourcc;
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// mesh 表 buf fd，外部分配，可用 rk_ispfec_api_calFecMeshsize 计算size
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mesh_info_t mesh_xint;
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mesh_info_t mesh_xfra;
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mesh_info_t mesh_yint;
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mesh_info_t mesh_yfra;
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enum rk_ispfec_update_mesh_mode mesh_upd_mode;
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/**
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* @UPDATE_MESH_ONLINE : configure the online info from fec calibration for 'mesh_file_path'
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* @UPDATE_MESH_FROM_FILE: configure the path of mesh file for 'mesh_online'
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*/
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union {
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char mesh_file_path[128];
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gen_mesh_online_info_t mesh_online;
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} u;
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} rk_ispfec_cfg_t;
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rk_ispfec_ctx_t* rk_ispfec_api_init(rk_ispfec_cfg_t* cfg);
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// prepare 时cfg可为 NULL，为NULL时使用 init时的。
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// prepare 可用于 reconfig 参数
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int rk_ispfec_api_prepare(rk_ispfec_ctx_t* ctx, rk_ispfec_cfg_t* cfg);
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int rk_ispfec_api_process(rk_ispfec_ctx_t* ctx, int src_fd, int dst_fd);
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void rk_ispfec_api_deinit(rk_ispfec_ctx_t* ctx);
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// helper functions
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// 用于计算 mesh buf 所需 size
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int rk_ispfec_api_calFecMeshsize(int width, int height);
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#ifdef __cplusplus
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}
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#endif
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#endif
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