1 /* 2 * Copyright (C) 2013 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 //#define LOG_NDEBUG 0 17 #define LOG_TAG "ExampleCamera" 18 19 #include <stdint.h> 20 21 #include <log/log.h> 22 23 #define ATRACE_TAG (ATRACE_TAG_CAMERA | ATRACE_TAG_HAL) 24 #include <utils/Trace.h> 25 26 #include <system/camera_metadata.h> 27 #include "Camera.h" 28 #include "ExampleCamera.h" 29 30 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) 31 32 namespace default_camera_hal { 33 34 ExampleCamera::ExampleCamera(int id) : Camera(id) 35 { 36 } 37 38 ExampleCamera::~ExampleCamera() 39 { 40 } 41 42 camera_metadata_t *ExampleCamera::initStaticInfo() 43 { 44 /* 45 * Setup static camera info. This will have to customized per camera 46 * device. 47 */ 48 Metadata m; 49 50 /* android.control */ 51 int32_t android_control_ae_available_target_fps_ranges[] = {30, 30}; 52 m.addInt32(ANDROID_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES, 53 ARRAY_SIZE(android_control_ae_available_target_fps_ranges), 54 android_control_ae_available_target_fps_ranges); 55 56 int32_t android_control_ae_compensation_range[] = {-4, 4}; 57 m.addInt32(ANDROID_CONTROL_AE_COMPENSATION_RANGE, 58 ARRAY_SIZE(android_control_ae_compensation_range), 59 android_control_ae_compensation_range); 60 61 camera_metadata_rational_t android_control_ae_compensation_step[] = {{2,1}}; 62 m.addRational(ANDROID_CONTROL_AE_COMPENSATION_STEP, 63 ARRAY_SIZE(android_control_ae_compensation_step), 64 android_control_ae_compensation_step); 65 66 int32_t android_control_max_regions[] = {/*AE*/ 1,/*AWB*/ 1,/*AF*/ 1}; 67 m.addInt32(ANDROID_CONTROL_MAX_REGIONS, 68 ARRAY_SIZE(android_control_max_regions), 69 android_control_max_regions); 70 71 /* android.jpeg */ 72 int32_t android_jpeg_available_thumbnail_sizes[] = {0, 0, 128, 96}; 73 m.addInt32(ANDROID_JPEG_AVAILABLE_THUMBNAIL_SIZES, 74 ARRAY_SIZE(android_jpeg_available_thumbnail_sizes), 75 android_jpeg_available_thumbnail_sizes); 76 77 int32_t android_jpeg_max_size[] = {13 * 1024 * 1024}; // 13MB 78 m.addInt32(ANDROID_JPEG_MAX_SIZE, 79 ARRAY_SIZE(android_jpeg_max_size), 80 android_jpeg_max_size); 81 82 /* android.lens */ 83 float android_lens_info_available_focal_lengths[] = {1.0}; 84 m.addFloat(ANDROID_LENS_INFO_AVAILABLE_FOCAL_LENGTHS, 85 ARRAY_SIZE(android_lens_info_available_focal_lengths), 86 android_lens_info_available_focal_lengths); 87 88 /* android.request */ 89 int32_t android_request_max_num_output_streams[] = {0, 3, 1}; 90 m.addInt32(ANDROID_REQUEST_MAX_NUM_OUTPUT_STREAMS, 91 ARRAY_SIZE(android_request_max_num_output_streams), 92 android_request_max_num_output_streams); 93 94 /* android.scaler */ 95 int32_t android_scaler_available_formats[] = { 96 HAL_PIXEL_FORMAT_RAW16, 97 HAL_PIXEL_FORMAT_BLOB, 98 HAL_PIXEL_FORMAT_RGBA_8888, 99 HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, 100 // These are handled by YCbCr_420_888 101 // HAL_PIXEL_FORMAT_YV12, 102 // HAL_PIXEL_FORMAT_YCrCb_420_SP, 103 HAL_PIXEL_FORMAT_YCbCr_420_888}; 104 m.addInt32(ANDROID_SCALER_AVAILABLE_FORMATS, 105 ARRAY_SIZE(android_scaler_available_formats), 106 android_scaler_available_formats); 107 108 int64_t android_scaler_available_jpeg_min_durations[] = {1}; 109 m.addInt64(ANDROID_SCALER_AVAILABLE_JPEG_MIN_DURATIONS, 110 ARRAY_SIZE(android_scaler_available_jpeg_min_durations), 111 android_scaler_available_jpeg_min_durations); 112 113 int32_t android_scaler_available_jpeg_sizes[] = {640, 480}; 114 m.addInt32(ANDROID_SCALER_AVAILABLE_JPEG_SIZES, 115 ARRAY_SIZE(android_scaler_available_jpeg_sizes), 116 android_scaler_available_jpeg_sizes); 117 118 float android_scaler_available_max_digital_zoom[] = {1}; 119 m.addFloat(ANDROID_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM, 120 ARRAY_SIZE(android_scaler_available_max_digital_zoom), 121 android_scaler_available_max_digital_zoom); 122 123 int64_t android_scaler_available_processed_min_durations[] = {1}; 124 m.addInt64(ANDROID_SCALER_AVAILABLE_PROCESSED_MIN_DURATIONS, 125 ARRAY_SIZE(android_scaler_available_processed_min_durations), 126 android_scaler_available_processed_min_durations); 127 128 int32_t android_scaler_available_processed_sizes[] = {640, 480}; 129 m.addInt32(ANDROID_SCALER_AVAILABLE_PROCESSED_SIZES, 130 ARRAY_SIZE(android_scaler_available_processed_sizes), 131 android_scaler_available_processed_sizes); 132 133 int64_t android_scaler_available_raw_min_durations[] = {1}; 134 m.addInt64(ANDROID_SCALER_AVAILABLE_RAW_MIN_DURATIONS, 135 ARRAY_SIZE(android_scaler_available_raw_min_durations), 136 android_scaler_available_raw_min_durations); 137 138 int32_t android_scaler_available_raw_sizes[] = {640, 480}; 139 m.addInt32(ANDROID_SCALER_AVAILABLE_RAW_SIZES, 140 ARRAY_SIZE(android_scaler_available_raw_sizes), 141 android_scaler_available_raw_sizes); 142 143 /* android.sensor */ 144 145 int32_t android_sensor_info_active_array_size[] = {0, 0, 640, 480}; 146 m.addInt32(ANDROID_SENSOR_INFO_ACTIVE_ARRAY_SIZE, 147 ARRAY_SIZE(android_sensor_info_active_array_size), 148 android_sensor_info_active_array_size); 149 150 int32_t android_sensor_info_sensitivity_range[] = 151 {100, 1600}; 152 m.addInt32(ANDROID_SENSOR_INFO_SENSITIVITY_RANGE, 153 ARRAY_SIZE(android_sensor_info_sensitivity_range), 154 android_sensor_info_sensitivity_range); 155 156 int64_t android_sensor_info_max_frame_duration[] = {30000000000}; 157 m.addInt64(ANDROID_SENSOR_INFO_MAX_FRAME_DURATION, 158 ARRAY_SIZE(android_sensor_info_max_frame_duration), 159 android_sensor_info_max_frame_duration); 160 161 float android_sensor_info_physical_size[] = {3.2, 2.4}; 162 m.addFloat(ANDROID_SENSOR_INFO_PHYSICAL_SIZE, 163 ARRAY_SIZE(android_sensor_info_physical_size), 164 android_sensor_info_physical_size); 165 166 int32_t android_sensor_info_pixel_array_size[] = {640, 480}; 167 m.addInt32(ANDROID_SENSOR_INFO_PIXEL_ARRAY_SIZE, 168 ARRAY_SIZE(android_sensor_info_pixel_array_size), 169 android_sensor_info_pixel_array_size); 170 171 int32_t android_sensor_orientation[] = {0}; 172 m.addInt32(ANDROID_SENSOR_ORIENTATION, 173 ARRAY_SIZE(android_sensor_orientation), 174 android_sensor_orientation); 175 176 /* End of static camera characteristics */ 177 178 return clone_camera_metadata(m.get()); 179 } 180 181 int ExampleCamera::initDevice() 182 { 183 int res; 184 Metadata base; 185 186 // Create standard settings templates from copies of base metadata 187 // TODO: use vendor tags in base metadata 188 res = base.add1UInt8(ANDROID_CONTROL_MODE, ANDROID_CONTROL_MODE_OFF); 189 if (res) 190 return res; 191 192 // Use base settings to create all other templates and set them 193 res = setPreviewTemplate(base); 194 if (res) 195 return res; 196 res = setStillTemplate(base); 197 if (res) 198 return res; 199 res = setRecordTemplate(base); 200 if (res) 201 return res; 202 res = setSnapshotTemplate(base); 203 if (res) 204 return res; 205 res = setZslTemplate(base); 206 if (res) 207 return res; 208 209 return 0; 210 } 211 212 int ExampleCamera::setPreviewTemplate(Metadata m) 213 { 214 // Setup default preview controls 215 int res = m.add1UInt8(ANDROID_CONTROL_CAPTURE_INTENT, 216 ANDROID_CONTROL_CAPTURE_INTENT_PREVIEW); 217 218 if (res) 219 return res; 220 // TODO: set fast auto-focus, auto-whitebalance, auto-exposure, auto flash 221 return setTemplate(CAMERA3_TEMPLATE_PREVIEW, m.get()); 222 } 223 224 int ExampleCamera::setStillTemplate(Metadata m) 225 { 226 int res = m.add1UInt8(ANDROID_CONTROL_CAPTURE_INTENT, 227 ANDROID_CONTROL_CAPTURE_INTENT_STILL_CAPTURE); 228 // Setup default still capture controls 229 if (res) 230 return res; 231 // TODO: set fast auto-focus, auto-whitebalance, auto-exposure, auto flash 232 return setTemplate(CAMERA3_TEMPLATE_STILL_CAPTURE, m.get()); 233 } 234 235 int ExampleCamera::setRecordTemplate(Metadata m) 236 { 237 int res = m.add1UInt8(ANDROID_CONTROL_CAPTURE_INTENT, 238 ANDROID_CONTROL_CAPTURE_INTENT_VIDEO_RECORD); 239 // Setup default video record controls 240 if (res) 241 return res; 242 // TODO: set slow auto-focus, auto-whitebalance, auto-exposure, flash off 243 return setTemplate(CAMERA3_TEMPLATE_VIDEO_RECORD, m.get()); 244 } 245 246 int ExampleCamera::setSnapshotTemplate(Metadata m) 247 { 248 int res = m.add1UInt8(ANDROID_CONTROL_CAPTURE_INTENT, 249 ANDROID_CONTROL_CAPTURE_INTENT_VIDEO_SNAPSHOT); 250 // Setup default video snapshot controls 251 if (res) 252 return res; 253 // TODO: set slow auto-focus, auto-whitebalance, auto-exposure, flash off 254 return setTemplate(CAMERA3_TEMPLATE_VIDEO_SNAPSHOT, m.get()); 255 } 256 257 int ExampleCamera::setZslTemplate(Metadata m) 258 { 259 int res = m.add1UInt8(ANDROID_CONTROL_CAPTURE_INTENT, 260 ANDROID_CONTROL_CAPTURE_INTENT_ZERO_SHUTTER_LAG); 261 // Setup default zero shutter lag controls 262 if (res) 263 return res; 264 // TODO: set reprocessing parameters for zsl input queue 265 return setTemplate(CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG, m.get()); 266 } 267 268 bool ExampleCamera::isValidCaptureSettings( 269 const camera_metadata_t* /*settings*/) 270 { 271 // TODO: reject settings that cannot be captured 272 return true; 273 } 274 275 } // namespace default_camera_hal 276
