ACameraMetadata.cpp revision c360382bf257d815b2a411152485d3c3b37a9f46 
1/*
2 * Copyright (C) 2015 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//#define LOG_NDEBUG 0
18#define LOG_TAG "ACameraMetadata"
19
20#include "ACameraMetadata.h"
21#include <utils/Vector.h>
22#include <system/graphics.h>
23#include "NdkImage.h"
24
25using namespace android;
26
27/**
28 * ACameraMetadata Implementation
29 */
30ACameraMetadata::ACameraMetadata(camera_metadata_t* buffer, ACAMERA_METADATA_TYPE type) :
31        mData(buffer), mType(type) {
32    if (mType == ACM_CHARACTERISTICS) {
33        filterUnsupportedFeatures();
34        filterStreamConfigurations();
35    }
36    // TODO: filter request/result keys
37}
38
39bool
40ACameraMetadata::isNdkSupportedCapability(int32_t capability) {
41    switch (capability) {
42        case ANDROID_REQUEST_AVAILABLE_CAPABILITIES_BACKWARD_COMPATIBLE:
43        case ANDROID_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR:
44        case ANDROID_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_POST_PROCESSING:
45        case ANDROID_REQUEST_AVAILABLE_CAPABILITIES_RAW:
46        case ANDROID_REQUEST_AVAILABLE_CAPABILITIES_READ_SENSOR_SETTINGS:
47        case ANDROID_REQUEST_AVAILABLE_CAPABILITIES_BURST_CAPTURE:
48        case ANDROID_REQUEST_AVAILABLE_CAPABILITIES_DEPTH_OUTPUT:
49            return true;
50        case ANDROID_REQUEST_AVAILABLE_CAPABILITIES_YUV_REPROCESSING:
51        case ANDROID_REQUEST_AVAILABLE_CAPABILITIES_PRIVATE_REPROCESSING:
52        case ANDROID_REQUEST_AVAILABLE_CAPABILITIES_CONSTRAINED_HIGH_SPEED_VIDEO:
53            return false;
54        default:
55            // Newly defined capabilities will be unsupported by default (blacklist)
56            // TODO: Should we do whitelist or blacklist here?
57            ALOGE("%s: Unknonwn capability %d", __FUNCTION__, capability);
58            return false;
59    }
60}
61
62void
63ACameraMetadata::filterUnsupportedFeatures() {
64    // Hide unsupported capabilities (reprocessing)
65    camera_metadata_entry entry = mData.find(ANDROID_REQUEST_AVAILABLE_CAPABILITIES);
66    if (entry.count == 0 || entry.type != TYPE_BYTE) {
67        ALOGE("%s: malformed available capability key! count %zu, type %d",
68                __FUNCTION__, entry.count, entry.type);
69        return;
70    }
71
72    Vector<uint8_t> capabilities;
73    capabilities.setCapacity(entry.count);
74    for (size_t i = 0; i < entry.count; i++) {
75        uint8_t capability = entry.data.u8[i];
76        if (isNdkSupportedCapability(capability)) {
77            capabilities.push(capability);
78        }
79    }
80    mData.update(ANDROID_REQUEST_AVAILABLE_CAPABILITIES, capabilities);
81}
82
83
84void
85ACameraMetadata::filterStreamConfigurations() {
86    const int STREAM_CONFIGURATION_SIZE = 4;
87    const int STREAM_FORMAT_OFFSET = 0;
88    const int STREAM_WIDTH_OFFSET = 1;
89    const int STREAM_HEIGHT_OFFSET = 2;
90    const int STREAM_IS_INPUT_OFFSET = 3;
91    camera_metadata_entry entry = mData.find(ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS);
92    if (entry.count == 0 || entry.count % 4 || entry.type != TYPE_INT32) {
93        ALOGE("%s: malformed available stream configuration key! count %zu, type %d",
94                __FUNCTION__, entry.count, entry.type);
95        return;
96    }
97
98    Vector<int32_t> filteredStreamConfigs;
99    filteredStreamConfigs.setCapacity(entry.count);
100
101    for (size_t i=0; i < entry.count; i += STREAM_CONFIGURATION_SIZE) {
102        int32_t format = entry.data.i32[i + STREAM_FORMAT_OFFSET];
103        int32_t width = entry.data.i32[i + STREAM_WIDTH_OFFSET];
104        int32_t height = entry.data.i32[i + STREAM_HEIGHT_OFFSET];
105        int32_t isInput = entry.data.i32[i + STREAM_IS_INPUT_OFFSET];
106        if (isInput == ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_INPUT) {
107            // Hide input streams
108            continue;
109        }
110        // Translate HAL formats to NDK format
111        if (format == HAL_PIXEL_FORMAT_BLOB) {
112            format = AIMAGE_FORMAT_JPEG;
113        }
114        filteredStreamConfigs.push_back(format);
115        filteredStreamConfigs.push_back(width);
116        filteredStreamConfigs.push_back(height);
117        filteredStreamConfigs.push_back(isInput);
118    }
119
120    mData.update(ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS, filteredStreamConfigs);
121
122    entry = mData.find(ANDROID_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS);
123    Vector<int32_t> filteredDepthStreamConfigs;
124    filteredDepthStreamConfigs.setCapacity(entry.count);
125
126    for (size_t i=0; i < entry.count; i += STREAM_CONFIGURATION_SIZE) {
127        int32_t format = entry.data.i32[i + STREAM_FORMAT_OFFSET];
128        int32_t width = entry.data.i32[i + STREAM_WIDTH_OFFSET];
129        int32_t height = entry.data.i32[i + STREAM_HEIGHT_OFFSET];
130        int32_t isInput = entry.data.i32[i + STREAM_IS_INPUT_OFFSET];
131        if (isInput == ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_INPUT) {
132            // Hide input streams
133            continue;
134        }
135        // Translate HAL formats to NDK format
136        if (format == HAL_PIXEL_FORMAT_BLOB) {
137            format = AIMAGE_FORMAT_DEPTH_POINT_CLOUD;
138        } else if (format == HAL_PIXEL_FORMAT_Y16) {
139            format = AIMAGE_FORMAT_DEPTH16;
140        }
141
142        filteredDepthStreamConfigs.push_back(format);
143        filteredDepthStreamConfigs.push_back(width);
144        filteredDepthStreamConfigs.push_back(height);
145        filteredDepthStreamConfigs.push_back(isInput);
146    }
147    mData.update(ANDROID_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS, filteredDepthStreamConfigs);
148}
149
150bool
151ACameraMetadata::isVendorTag(const uint32_t tag) {
152    uint32_t tag_section = tag >> 16;
153    if (tag_section >= VENDOR_SECTION) {
154        return true;
155    }
156    return false;
157}
158
159camera_status_t
160ACameraMetadata::getConstEntry(uint32_t tag, ACameraMetadata_const_entry* entry) const {
161    if (entry == nullptr) {
162        return ACAMERA_ERROR_INVALID_PARAMETER;
163    }
164
165    camera_metadata_ro_entry rawEntry = mData.find(tag);
166    if (rawEntry.count == 0) {
167        ALOGE("%s: cannot find metadata tag %d", __FUNCTION__, tag);
168        return ACAMERA_ERROR_METADATA_NOT_FOUND;
169    }
170    entry->tag = tag;
171    entry->type = rawEntry.type;
172    entry->count = rawEntry.count;
173    entry->data.u8 = rawEntry.data.u8;
174    return ACAMERA_OK;
175}
176
177camera_status_t
178ACameraMetadata::update(uint32_t tag, uint32_t count, const uint8_t* data) {
179    return updateImpl<uint8_t>(tag, count, data);
180}
181
182camera_status_t
183ACameraMetadata::update(uint32_t tag, uint32_t count, const int32_t* data) {
184    return updateImpl<int32_t>(tag, count, data);
185}
186
187camera_status_t
188ACameraMetadata::update(uint32_t tag, uint32_t count, const float* data) {
189    return updateImpl<float>(tag, count, data);
190}
191
192camera_status_t
193ACameraMetadata::update(uint32_t tag, uint32_t count, const double* data) {
194    return updateImpl<double>(tag, count, data);
195}
196
197camera_status_t
198ACameraMetadata::update(uint32_t tag, uint32_t count, const int64_t* data) {
199    return updateImpl<int64_t>(tag, count, data);
200}
201
202camera_status_t
203ACameraMetadata::update(uint32_t tag, uint32_t count, const ACameraMetadata_rational* data) {
204    return updateImpl<camera_metadata_rational_t>(tag, count, data);
205}
206
207
208// TODO: some of key below should be hidden from user
209// ex: ACAMERA_REQUEST_ID and ACAMERA_REPROCESS_EFFECTIVE_EXPOSURE_FACTOR
210/*@O~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~
211 * The key entries below this point are generated from metadata
212 * definitions in /system/media/camera/docs. Do not modify by hand or
213 * modify the comment blocks at the start or end.
214 *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~*/
215
216bool
217ACameraMetadata::isCaptureRequestTag(const uint32_t tag) {
218    // Skip check for vendor keys
219    if (isVendorTag(tag)) {
220        return true;
221    }
222
223    switch (tag) {
224        case ACAMERA_COLOR_CORRECTION_MODE:
225        case ACAMERA_COLOR_CORRECTION_TRANSFORM:
226        case ACAMERA_COLOR_CORRECTION_GAINS:
227        case ACAMERA_COLOR_CORRECTION_ABERRATION_MODE:
228        case ACAMERA_CONTROL_AE_ANTIBANDING_MODE:
229        case ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION:
230        case ACAMERA_CONTROL_AE_LOCK:
231        case ACAMERA_CONTROL_AE_MODE:
232        case ACAMERA_CONTROL_AE_REGIONS:
233        case ACAMERA_CONTROL_AE_TARGET_FPS_RANGE:
234        case ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER:
235        case ACAMERA_CONTROL_AF_MODE:
236        case ACAMERA_CONTROL_AF_REGIONS:
237        case ACAMERA_CONTROL_AF_TRIGGER:
238        case ACAMERA_CONTROL_AWB_LOCK:
239        case ACAMERA_CONTROL_AWB_MODE:
240        case ACAMERA_CONTROL_AWB_REGIONS:
241        case ACAMERA_CONTROL_CAPTURE_INTENT:
242        case ACAMERA_CONTROL_EFFECT_MODE:
243        case ACAMERA_CONTROL_MODE:
244        case ACAMERA_CONTROL_SCENE_MODE:
245        case ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE:
246        case ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST:
247        case ACAMERA_EDGE_MODE:
248        case ACAMERA_FLASH_MODE:
249        case ACAMERA_HOT_PIXEL_MODE:
250        case ACAMERA_JPEG_GPS_COORDINATES:
251        case ACAMERA_JPEG_GPS_PROCESSING_METHOD:
252        case ACAMERA_JPEG_GPS_TIMESTAMP:
253        case ACAMERA_JPEG_ORIENTATION:
254        case ACAMERA_JPEG_QUALITY:
255        case ACAMERA_JPEG_THUMBNAIL_QUALITY:
256        case ACAMERA_JPEG_THUMBNAIL_SIZE:
257        case ACAMERA_LENS_APERTURE:
258        case ACAMERA_LENS_FILTER_DENSITY:
259        case ACAMERA_LENS_FOCAL_LENGTH:
260        case ACAMERA_LENS_FOCUS_DISTANCE:
261        case ACAMERA_LENS_OPTICAL_STABILIZATION_MODE:
262        case ACAMERA_NOISE_REDUCTION_MODE:
263        case ACAMERA_REQUEST_ID:
264        case ACAMERA_SCALER_CROP_REGION:
265        case ACAMERA_SENSOR_EXPOSURE_TIME:
266        case ACAMERA_SENSOR_FRAME_DURATION:
267        case ACAMERA_SENSOR_SENSITIVITY:
268        case ACAMERA_SENSOR_TEST_PATTERN_DATA:
269        case ACAMERA_SENSOR_TEST_PATTERN_MODE:
270        case ACAMERA_SHADING_MODE:
271        case ACAMERA_STATISTICS_FACE_DETECT_MODE:
272        case ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE:
273        case ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE:
274        case ACAMERA_TONEMAP_CURVE_BLUE:
275        case ACAMERA_TONEMAP_CURVE_GREEN:
276        case ACAMERA_TONEMAP_CURVE_RED:
277        case ACAMERA_TONEMAP_MODE:
278        case ACAMERA_TONEMAP_GAMMA:
279        case ACAMERA_TONEMAP_PRESET_CURVE:
280        case ACAMERA_LED_TRANSMIT:
281        case ACAMERA_BLACK_LEVEL_LOCK:
282        case ACAMERA_REPROCESS_EFFECTIVE_EXPOSURE_FACTOR:
283            return true;
284        default:
285            return false;
286    }
287}
288
289/*~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~
290 * End generated code
291 *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~O@*/
292