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