ACameraMetadata.cpp revision 0dea57fd9fc4b2ccaab97d9477359fbd5a626f5c 
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
23using namespace android;
24
25/**
26 * ACameraMetadata Implementation
27 */
28ACameraMetadata::ACameraMetadata(camera_metadata_t* buffer, ACAMERA_METADATA_TYPE type) :
29        mData(buffer), mType(type) {
30    filterUnsupportedFeatures();
31}
32
33bool
34ACameraMetadata::isNdkSupportedCapability(int32_t capability) {
35    switch (capability) {
36        case ANDROID_REQUEST_AVAILABLE_CAPABILITIES_BACKWARD_COMPATIBLE:
37        case ANDROID_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR:
38        case ANDROID_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_POST_PROCESSING:
39        case ANDROID_REQUEST_AVAILABLE_CAPABILITIES_RAW:
40        case ANDROID_REQUEST_AVAILABLE_CAPABILITIES_READ_SENSOR_SETTINGS:
41        case ANDROID_REQUEST_AVAILABLE_CAPABILITIES_BURST_CAPTURE:
42        case ANDROID_REQUEST_AVAILABLE_CAPABILITIES_DEPTH_OUTPUT:
43            return true;
44        case ANDROID_REQUEST_AVAILABLE_CAPABILITIES_YUV_REPROCESSING:
45        case ANDROID_REQUEST_AVAILABLE_CAPABILITIES_PRIVATE_REPROCESSING:
46        case ANDROID_REQUEST_AVAILABLE_CAPABILITIES_CONSTRAINED_HIGH_SPEED_VIDEO:
47            return false;
48        default:
49            // Newly defined capabilities will be unsupported by default (blacklist)
50            // TODO: Should we do whitelist or blacklist here?
51            ALOGE("%s: Unknonwn capability %d", __FUNCTION__, capability);
52            return false;
53    }
54}
55
56void
57ACameraMetadata::filterUnsupportedFeatures() {
58    // Hide unsupported capabilities (reprocessing)
59    camera_metadata_entry entry = mData.find(ANDROID_REQUEST_AVAILABLE_CAPABILITIES);
60    if (entry.count == 0 || entry.type != ACAMERA_TYPE_BYTE) {
61        ALOGE("%s: malformed available capability key! count %zu, type %d",
62                __FUNCTION__, entry.count, entry.type);
63        return;
64    }
65
66    Vector<uint8_t> capabilities;
67    capabilities.setCapacity(entry.count);
68    for (size_t i = 0; i < entry.count; i++) {
69        uint8_t capability = entry.data.u8[i];
70        if (isNdkSupportedCapability(capability)) {
71            capabilities.push(capability);
72        }
73    }
74    mData.update(ANDROID_REQUEST_AVAILABLE_CAPABILITIES, capabilities);
75    // TODO: Hide unsupported streams (input/bidirectional streams)
76}
77
78bool
79ACameraMetadata::isVendorTag(const uint32_t tag) {
80    uint32_t tag_section = tag >> 16;
81    if (tag_section >= VENDOR_SECTION) {
82        return true;
83    }
84    return false;
85}
86
87camera_status_t
88ACameraMetadata::getConstEntry(uint32_t tag, ACameraMetadata_const_entry* entry) const {
89    if (entry == nullptr) {
90        return ACAMERA_ERROR_INVALID_PARAMETER;
91    }
92
93    camera_metadata_ro_entry rawEntry = mData.find(tag);
94    if (rawEntry.count == 0) {
95        ALOGE("%s: cannot find metadata tag %d", __FUNCTION__, tag);
96        return ACAMERA_ERROR_METADATA_NOT_FOUND;
97    }
98    entry->tag = tag;
99    entry->type = rawEntry.type;
100    entry->count = rawEntry.count;
101    entry->data.u8 = rawEntry.data.u8;
102    return ACAMERA_OK;
103}
104
105camera_status_t
106ACameraMetadata::update(uint32_t tag, uint32_t count, const uint8_t* data) {
107    return updateImpl<uint8_t>(tag, count, data);
108}
109
110camera_status_t
111ACameraMetadata::update(uint32_t tag, uint32_t count, const int32_t* data) {
112    return updateImpl<int32_t>(tag, count, data);
113}
114
115camera_status_t
116ACameraMetadata::update(uint32_t tag, uint32_t count, const float* data) {
117    return updateImpl<float>(tag, count, data);
118}
119
120camera_status_t
121ACameraMetadata::update(uint32_t tag, uint32_t count, const double* data) {
122    return updateImpl<double>(tag, count, data);
123}
124
125camera_status_t
126ACameraMetadata::update(uint32_t tag, uint32_t count, const int64_t* data) {
127    return updateImpl<int64_t>(tag, count, data);
128}
129
130camera_status_t
131ACameraMetadata::update(uint32_t tag, uint32_t count, const ACameraMetadata_rational* data) {
132    return updateImpl<camera_metadata_rational_t>(tag, count, data);
133}
134
135
136// TODO: some of key below should be hidden from user
137// ex: ACAMERA_REQUEST_ID and ACAMERA_REPROCESS_EFFECTIVE_EXPOSURE_FACTOR
138/*@O~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~
139 * The key entries below this point are generated from metadata
140 * definitions in /system/media/camera/docs. Do not modify by hand or
141 * modify the comment blocks at the start or end.
142 *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~*/
143
144bool
145ACameraMetadata::isCaptureRequestTag(const uint32_t tag) {
146    // Skip check for vendor keys
147    if (isVendorTag(tag)) {
148        return true;
149    }
150
151    switch (tag) {
152        case ACAMERA_COLOR_CORRECTION_MODE:
153        case ACAMERA_COLOR_CORRECTION_TRANSFORM:
154        case ACAMERA_COLOR_CORRECTION_GAINS:
155        case ACAMERA_COLOR_CORRECTION_ABERRATION_MODE:
156        case ACAMERA_CONTROL_AE_ANTIBANDING_MODE:
157        case ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION:
158        case ACAMERA_CONTROL_AE_LOCK:
159        case ACAMERA_CONTROL_AE_MODE:
160        case ACAMERA_CONTROL_AE_REGIONS:
161        case ACAMERA_CONTROL_AE_TARGET_FPS_RANGE:
162        case ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER:
163        case ACAMERA_CONTROL_AF_MODE:
164        case ACAMERA_CONTROL_AF_REGIONS:
165        case ACAMERA_CONTROL_AF_TRIGGER:
166        case ACAMERA_CONTROL_AWB_LOCK:
167        case ACAMERA_CONTROL_AWB_MODE:
168        case ACAMERA_CONTROL_AWB_REGIONS:
169        case ACAMERA_CONTROL_CAPTURE_INTENT:
170        case ACAMERA_CONTROL_EFFECT_MODE:
171        case ACAMERA_CONTROL_MODE:
172        case ACAMERA_CONTROL_SCENE_MODE:
173        case ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE:
174        case ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST:
175        case ACAMERA_EDGE_MODE:
176        case ACAMERA_FLASH_MODE:
177        case ACAMERA_HOT_PIXEL_MODE:
178        case ACAMERA_JPEG_GPS_COORDINATES:
179        case ACAMERA_JPEG_GPS_PROCESSING_METHOD:
180        case ACAMERA_JPEG_GPS_TIMESTAMP:
181        case ACAMERA_JPEG_ORIENTATION:
182        case ACAMERA_JPEG_QUALITY:
183        case ACAMERA_JPEG_THUMBNAIL_QUALITY:
184        case ACAMERA_JPEG_THUMBNAIL_SIZE:
185        case ACAMERA_LENS_APERTURE:
186        case ACAMERA_LENS_FILTER_DENSITY:
187        case ACAMERA_LENS_FOCAL_LENGTH:
188        case ACAMERA_LENS_FOCUS_DISTANCE:
189        case ACAMERA_LENS_OPTICAL_STABILIZATION_MODE:
190        case ACAMERA_NOISE_REDUCTION_MODE:
191        case ACAMERA_REQUEST_ID:
192        case ACAMERA_SCALER_CROP_REGION:
193        case ACAMERA_SENSOR_EXPOSURE_TIME:
194        case ACAMERA_SENSOR_FRAME_DURATION:
195        case ACAMERA_SENSOR_SENSITIVITY:
196        case ACAMERA_SENSOR_TEST_PATTERN_DATA:
197        case ACAMERA_SENSOR_TEST_PATTERN_MODE:
198        case ACAMERA_SHADING_MODE:
199        case ACAMERA_STATISTICS_FACE_DETECT_MODE:
200        case ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE:
201        case ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE:
202        case ACAMERA_TONEMAP_CURVE_BLUE:
203        case ACAMERA_TONEMAP_CURVE_GREEN:
204        case ACAMERA_TONEMAP_CURVE_RED:
205        case ACAMERA_TONEMAP_MODE:
206        case ACAMERA_TONEMAP_GAMMA:
207        case ACAMERA_TONEMAP_PRESET_CURVE:
208        case ACAMERA_LED_TRANSMIT:
209        case ACAMERA_BLACK_LEVEL_LOCK:
210        case ACAMERA_REPROCESS_EFFECTIVE_EXPOSURE_FACTOR:
211            return true;
212        default:
213            return false;
214    }
215}
216
217/*~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~
218 * End generated code
219 *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~O@*/
220