3 ** Copyright 2008, The Android Open Source Project
5 ** Licensed under the Apache License, Version 2.0 (the "License");
6 ** you may not use this file except in compliance with the License.
7 ** You may obtain a copy of the License at
9 ** http://www.apache.org/licenses/LICENSE-2.0
11 ** Unless required by applicable law or agreed to in writing, software
12 ** distributed under the License is distributed on an "AS IS" BASIS,
13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 ** See the License for the specific language governing permissions and
15 ** limitations under the License.
18 #define LOG_TAG "CameraParams"
19 #include <utils/Log.h>
23 #include <camera/CameraParameters.h>
24 #include <system/graphics.h>
27 // Parameter keys to communicate between camera application and driver.
28 const char CameraParameters::KEY_PREVIEW_SIZE[] = "preview-size";
29 const char CameraParameters::KEY_SUPPORTED_PREVIEW_SIZES[] = "preview-size-values";
30 const char CameraParameters::KEY_PREVIEW_FORMAT[] = "preview-format";
31 const char CameraParameters::KEY_SUPPORTED_PREVIEW_FORMATS[] = "preview-format-values";
32 const char CameraParameters::KEY_PREVIEW_FRAME_RATE[] = "preview-frame-rate";
33 const char CameraParameters::KEY_SUPPORTED_PREVIEW_FRAME_RATES[] = "preview-frame-rate-values";
34 const char CameraParameters::KEY_PREVIEW_FPS_RANGE[] = "preview-fps-range";
35 const char CameraParameters::KEY_SUPPORTED_PREVIEW_FPS_RANGE[] = "preview-fps-range-values";
36 const char CameraParameters::KEY_PICTURE_SIZE[] = "picture-size";
37 const char CameraParameters::KEY_SUPPORTED_PICTURE_SIZES[] = "picture-size-values";
38 const char CameraParameters::KEY_PICTURE_FORMAT[] = "picture-format";
39 const char CameraParameters::KEY_SUPPORTED_PICTURE_FORMATS[] = "picture-format-values";
40 const char CameraParameters::KEY_JPEG_THUMBNAIL_WIDTH[] = "jpeg-thumbnail-width";
41 const char CameraParameters::KEY_JPEG_THUMBNAIL_HEIGHT[] = "jpeg-thumbnail-height";
42 const char CameraParameters::KEY_SUPPORTED_JPEG_THUMBNAIL_SIZES[] = "jpeg-thumbnail-size-values";
43 const char CameraParameters::KEY_JPEG_THUMBNAIL_QUALITY[] = "jpeg-thumbnail-quality";
44 const char CameraParameters::KEY_JPEG_QUALITY[] = "jpeg-quality";
45 const char CameraParameters::KEY_ROTATION[] = "rotation";
46 const char CameraParameters::KEY_GPS_LATITUDE[] = "gps-latitude";
47 const char CameraParameters::KEY_GPS_LONGITUDE[] = "gps-longitude";
48 const char CameraParameters::KEY_GPS_ALTITUDE[] = "gps-altitude";
49 const char CameraParameters::KEY_GPS_TIMESTAMP[] = "gps-timestamp";
50 const char CameraParameters::KEY_GPS_PROCESSING_METHOD[] = "gps-processing-method";
51 const char CameraParameters::KEY_WHITE_BALANCE[] = "whitebalance";
52 const char CameraParameters::KEY_SUPPORTED_WHITE_BALANCE[] = "whitebalance-values";
53 const char CameraParameters::KEY_EFFECT[] = "effect";
54 const char CameraParameters::KEY_SUPPORTED_EFFECTS[] = "effect-values";
55 const char CameraParameters::KEY_ANTIBANDING[] = "antibanding";
56 const char CameraParameters::KEY_SUPPORTED_ANTIBANDING[] = "antibanding-values";
57 const char CameraParameters::KEY_SCENE_MODE[] = "scene-mode";
58 const char CameraParameters::KEY_SUPPORTED_SCENE_MODES[] = "scene-mode-values";
59 const char CameraParameters::KEY_FLASH_MODE[] = "flash-mode";
60 const char CameraParameters::KEY_SUPPORTED_FLASH_MODES[] = "flash-mode-values";
61 const char CameraParameters::KEY_FOCUS_MODE[] = "focus-mode";
62 const char CameraParameters::KEY_SUPPORTED_FOCUS_MODES[] = "focus-mode-values";
63 const char CameraParameters::KEY_MAX_NUM_FOCUS_AREAS[] = "max-num-focus-areas";
64 const char CameraParameters::KEY_FOCUS_AREAS[] = "focus-areas";
65 const char CameraParameters::KEY_FOCAL_LENGTH[] = "focal-length";
66 const char CameraParameters::KEY_HORIZONTAL_VIEW_ANGLE[] = "horizontal-view-angle";
67 const char CameraParameters::KEY_VERTICAL_VIEW_ANGLE[] = "vertical-view-angle";
68 const char CameraParameters::KEY_EXPOSURE_COMPENSATION[] = "exposure-compensation";
69 const char CameraParameters::KEY_MAX_EXPOSURE_COMPENSATION[] = "max-exposure-compensation";
70 const char CameraParameters::KEY_MIN_EXPOSURE_COMPENSATION[] = "min-exposure-compensation";
71 const char CameraParameters::KEY_EXPOSURE_COMPENSATION_STEP[] = "exposure-compensation-step";
72 const char CameraParameters::KEY_AUTO_EXPOSURE_LOCK[] = "auto-exposure-lock";
73 const char CameraParameters::KEY_AUTO_EXPOSURE_LOCK_SUPPORTED[] = "auto-exposure-lock-supported";
74 const char CameraParameters::KEY_AUTO_WHITEBALANCE_LOCK[] = "auto-whitebalance-lock";
75 const char CameraParameters::KEY_AUTO_WHITEBALANCE_LOCK_SUPPORTED[] = "auto-whitebalance-lock-supported";
76 const char CameraParameters::KEY_MAX_NUM_METERING_AREAS[] = "max-num-metering-areas";
77 const char CameraParameters::KEY_METERING_AREAS[] = "metering-areas";
78 const char CameraParameters::KEY_ZOOM[] = "zoom";
79 const char CameraParameters::KEY_MAX_ZOOM[] = "max-zoom";
80 const char CameraParameters::KEY_ZOOM_RATIOS[] = "zoom-ratios";
81 const char CameraParameters::KEY_ZOOM_SUPPORTED[] = "zoom-supported";
82 const char CameraParameters::KEY_SMOOTH_ZOOM_SUPPORTED[] = "smooth-zoom-supported";
83 const char CameraParameters::KEY_FOCUS_DISTANCES[] = "focus-distances";
84 const char CameraParameters::KEY_VIDEO_FRAME_FORMAT[] = "video-frame-format";
85 const char CameraParameters::KEY_VIDEO_SIZE[] = "video-size";
86 const char CameraParameters::KEY_SUPPORTED_VIDEO_SIZES[] = "video-size-values";
87 const char CameraParameters::KEY_PREFERRED_PREVIEW_SIZE_FOR_VIDEO[] = "preferred-preview-size-for-video";
88 const char CameraParameters::KEY_MAX_NUM_DETECTED_FACES_HW[] = "max-num-detected-faces-hw";
89 const char CameraParameters::KEY_MAX_NUM_DETECTED_FACES_SW[] = "max-num-detected-faces-sw";
90 const char CameraParameters::KEY_RECORDING_HINT[] = "recording-hint";
91 const char CameraParameters::KEY_VIDEO_SNAPSHOT_SUPPORTED[] = "video-snapshot-supported";
92 const char CameraParameters::KEY_VIDEO_STABILIZATION[] = "video-stabilization";
93 const char CameraParameters::KEY_VIDEO_STABILIZATION_SUPPORTED[] = "video-stabilization-supported";
94 const char CameraParameters::KEY_LIGHTFX[] = "light-fx";
96 const char CameraParameters::TRUE[] = "true";
97 const char CameraParameters::FALSE[] = "false";
98 const char CameraParameters::FOCUS_DISTANCE_INFINITY[] = "Infinity";
100 // Values for white balance settings.
101 const char CameraParameters::WHITE_BALANCE_AUTO[] = "auto";
102 const char CameraParameters::WHITE_BALANCE_INCANDESCENT[] = "incandescent";
103 const char CameraParameters::WHITE_BALANCE_FLUORESCENT[] = "fluorescent";
104 const char CameraParameters::WHITE_BALANCE_WARM_FLUORESCENT[] = "warm-fluorescent";
105 const char CameraParameters::WHITE_BALANCE_DAYLIGHT[] = "daylight";
106 const char CameraParameters::WHITE_BALANCE_CLOUDY_DAYLIGHT[] = "cloudy-daylight";
107 const char CameraParameters::WHITE_BALANCE_TWILIGHT[] = "twilight";
108 const char CameraParameters::WHITE_BALANCE_SHADE[] = "shade";
110 // Values for effect settings.
111 const char CameraParameters::EFFECT_NONE[] = "none";
112 const char CameraParameters::EFFECT_MONO[] = "mono";
113 const char CameraParameters::EFFECT_NEGATIVE[] = "negative";
114 const char CameraParameters::EFFECT_SOLARIZE[] = "solarize";
115 const char CameraParameters::EFFECT_SEPIA[] = "sepia";
116 const char CameraParameters::EFFECT_POSTERIZE[] = "posterize";
117 const char CameraParameters::EFFECT_WHITEBOARD[] = "whiteboard";
118 const char CameraParameters::EFFECT_BLACKBOARD[] = "blackboard";
119 const char CameraParameters::EFFECT_AQUA[] = "aqua";
121 // Values for antibanding settings.
122 const char CameraParameters::ANTIBANDING_AUTO[] = "auto";
123 const char CameraParameters::ANTIBANDING_50HZ[] = "50hz";
124 const char CameraParameters::ANTIBANDING_60HZ[] = "60hz";
125 const char CameraParameters::ANTIBANDING_OFF[] = "off";
127 // Values for flash mode settings.
128 const char CameraParameters::FLASH_MODE_OFF[] = "off";
129 const char CameraParameters::FLASH_MODE_AUTO[] = "auto";
130 const char CameraParameters::FLASH_MODE_ON[] = "on";
131 const char CameraParameters::FLASH_MODE_RED_EYE[] = "red-eye";
132 const char CameraParameters::FLASH_MODE_TORCH[] = "torch";
134 // Values for scene mode settings.
135 const char CameraParameters::SCENE_MODE_AUTO[] = "auto";
136 const char CameraParameters::SCENE_MODE_ACTION[] = "action";
137 const char CameraParameters::SCENE_MODE_PORTRAIT[] = "portrait";
138 const char CameraParameters::SCENE_MODE_LANDSCAPE[] = "landscape";
139 const char CameraParameters::SCENE_MODE_NIGHT[] = "night";
140 const char CameraParameters::SCENE_MODE_NIGHT_PORTRAIT[] = "night-portrait";
141 const char CameraParameters::SCENE_MODE_THEATRE[] = "theatre";
142 const char CameraParameters::SCENE_MODE_BEACH[] = "beach";
143 const char CameraParameters::SCENE_MODE_SNOW[] = "snow";
144 const char CameraParameters::SCENE_MODE_SUNSET[] = "sunset";
145 const char CameraParameters::SCENE_MODE_STEADYPHOTO[] = "steadyphoto";
146 const char CameraParameters::SCENE_MODE_FIREWORKS[] = "fireworks";
147 const char CameraParameters::SCENE_MODE_SPORTS[] = "sports";
148 const char CameraParameters::SCENE_MODE_PARTY[] = "party";
149 const char CameraParameters::SCENE_MODE_CANDLELIGHT[] = "candlelight";
150 const char CameraParameters::SCENE_MODE_BARCODE[] = "barcode";
151 const char CameraParameters::SCENE_MODE_HDR[] = "hdr";
153 const char CameraParameters::PIXEL_FORMAT_YUV422SP[] = "yuv422sp";
154 const char CameraParameters::PIXEL_FORMAT_YUV420SP[] = "yuv420sp";
155 const char CameraParameters::PIXEL_FORMAT_YUV422I[] = "yuv422i-yuyv";
156 const char CameraParameters::PIXEL_FORMAT_YUV420P[] = "yuv420p";
157 const char CameraParameters::PIXEL_FORMAT_RGB565[] = "rgb565";
158 const char CameraParameters::PIXEL_FORMAT_RGBA8888[] = "rgba8888";
159 const char CameraParameters::PIXEL_FORMAT_JPEG[] = "jpeg";
160 const char CameraParameters::PIXEL_FORMAT_BAYER_RGGB[] = "bayer-rggb";
161 const char CameraParameters::PIXEL_FORMAT_ANDROID_OPAQUE[] = "android-opaque";
163 // Values for focus mode settings.
164 const char CameraParameters::FOCUS_MODE_AUTO[] = "auto";
165 const char CameraParameters::FOCUS_MODE_INFINITY[] = "infinity";
166 const char CameraParameters::FOCUS_MODE_MACRO[] = "macro";
167 const char CameraParameters::FOCUS_MODE_FIXED[] = "fixed";
168 const char CameraParameters::FOCUS_MODE_EDOF[] = "edof";
169 const char CameraParameters::FOCUS_MODE_CONTINUOUS_VIDEO[] = "continuous-video";
170 const char CameraParameters::FOCUS_MODE_CONTINUOUS_PICTURE[] = "continuous-picture";
172 // Values for light fx settings
173 const char CameraParameters::LIGHTFX_LOWLIGHT[] = "low-light";
174 const char CameraParameters::LIGHTFX_HDR[] = "high-dynamic-range";
176 CameraParameters::CameraParameters()
181 CameraParameters::~CameraParameters()
185 String8 CameraParameters::flatten() const
187 String8 flattened("");
188 size_t size = mMap.size();
190 for (size_t i = 0; i < size; i++) {
205 void CameraParameters::unflatten(const String8 ¶ms)
207 const char *a = params.string();
213 // Find the bounds of the key name.
218 // Create the key string.
219 String8 k(a, (size_t)(b-a));
225 // If there's no semicolon, this is the last item.
231 String8 v(a, (size_t)(b-a));
238 void CameraParameters::set(const char *key, const char *value)
240 // XXX i think i can do this with strspn()
241 if (strchr(key, '=') || strchr(key, ';')) {
242 //XXX ALOGE("Key \"%s\"contains invalid character (= or ;)", key);
246 if (strchr(value, '=') || strchr(value, ';')) {
247 //XXX ALOGE("Value \"%s\"contains invalid character (= or ;)", value);
251 mMap.replaceValueFor(String8(key), String8(value));
254 void CameraParameters::set(const char *key, int value)
257 sprintf(str, "%d", value);
261 void CameraParameters::setFloat(const char *key, float value)
263 char str[16]; // 14 should be enough. We overestimate to be safe.
264 snprintf(str, sizeof(str), "%g", value);
268 const char *CameraParameters::get(const char *key) const
270 String8 v = mMap.valueFor(String8(key));
276 int CameraParameters::getInt(const char *key) const
278 const char *v = get(key);
281 return strtol(v, 0, 0);
284 float CameraParameters::getFloat(const char *key) const
286 const char *v = get(key);
287 if (v == 0) return -1;
291 void CameraParameters::remove(const char *key)
293 mMap.removeItem(String8(key));
296 // Parse string like "640x480" or "10000,20000"
297 static int parse_pair(const char *str, int *first, int *second, char delim,
298 char **endptr = NULL)
300 // Find the first integer.
302 int w = (int)strtol(str, &end, 10);
303 // If a delimeter does not immediately follow, give up.
305 ALOGE("Cannot find delimeter (%c) in str=%s", delim, str);
309 // Find the second integer, immediately after the delimeter.
310 int h = (int)strtol(end+1, &end, 10);
322 static void parseSizesList(const char *sizesStr, Vector<Size> &sizes)
328 char *sizeStartPtr = (char *)sizesStr;
332 int success = parse_pair(sizeStartPtr, &width, &height, 'x',
334 if (success == -1 || (*sizeStartPtr != ',' && *sizeStartPtr != '\0')) {
335 ALOGE("Picture sizes string \"%s\" contains invalid character.", sizesStr);
338 sizes.push(Size(width, height));
340 if (*sizeStartPtr == '\0') {
347 void CameraParameters::setPreviewSize(int width, int height)
350 sprintf(str, "%dx%d", width, height);
351 set(KEY_PREVIEW_SIZE, str);
354 void CameraParameters::getPreviewSize(int *width, int *height) const
356 *width = *height = -1;
357 // Get the current string, if it doesn't exist, leave the -1x-1
358 const char *p = get(KEY_PREVIEW_SIZE);
360 parse_pair(p, width, height, 'x');
363 void CameraParameters::getPreferredPreviewSizeForVideo(int *width, int *height) const
365 *width = *height = -1;
366 const char *p = get(KEY_PREFERRED_PREVIEW_SIZE_FOR_VIDEO);
368 parse_pair(p, width, height, 'x');
371 void CameraParameters::getSupportedPreviewSizes(Vector<Size> &sizes) const
373 const char *previewSizesStr = get(KEY_SUPPORTED_PREVIEW_SIZES);
374 parseSizesList(previewSizesStr, sizes);
377 void CameraParameters::setVideoSize(int width, int height)
380 sprintf(str, "%dx%d", width, height);
381 set(KEY_VIDEO_SIZE, str);
384 void CameraParameters::getVideoSize(int *width, int *height) const
386 *width = *height = -1;
387 const char *p = get(KEY_VIDEO_SIZE);
389 parse_pair(p, width, height, 'x');
392 void CameraParameters::getSupportedVideoSizes(Vector<Size> &sizes) const
394 const char *videoSizesStr = get(KEY_SUPPORTED_VIDEO_SIZES);
395 parseSizesList(videoSizesStr, sizes);
398 void CameraParameters::setPreviewFrameRate(int fps)
400 set(KEY_PREVIEW_FRAME_RATE, fps);
403 int CameraParameters::getPreviewFrameRate() const
405 return getInt(KEY_PREVIEW_FRAME_RATE);
408 void CameraParameters::getPreviewFpsRange(int *min_fps, int *max_fps) const
410 *min_fps = *max_fps = -1;
411 const char *p = get(KEY_PREVIEW_FPS_RANGE);
413 parse_pair(p, min_fps, max_fps, ',');
416 void CameraParameters::setPreviewFormat(const char *format)
418 set(KEY_PREVIEW_FORMAT, format);
421 const char *CameraParameters::getPreviewFormat() const
423 return get(KEY_PREVIEW_FORMAT);
426 void CameraParameters::setPictureSize(int width, int height)
429 sprintf(str, "%dx%d", width, height);
430 set(KEY_PICTURE_SIZE, str);
433 void CameraParameters::getPictureSize(int *width, int *height) const
435 *width = *height = -1;
436 // Get the current string, if it doesn't exist, leave the -1x-1
437 const char *p = get(KEY_PICTURE_SIZE);
439 parse_pair(p, width, height, 'x');
442 void CameraParameters::getSupportedPictureSizes(Vector<Size> &sizes) const
444 const char *pictureSizesStr = get(KEY_SUPPORTED_PICTURE_SIZES);
445 parseSizesList(pictureSizesStr, sizes);
448 void CameraParameters::setPictureFormat(const char *format)
450 set(KEY_PICTURE_FORMAT, format);
453 const char *CameraParameters::getPictureFormat() const
455 return get(KEY_PICTURE_FORMAT);
458 void CameraParameters::dump() const
460 ALOGD("dump: mMap.size = %zu", mMap.size());
461 for (size_t i = 0; i < mMap.size(); i++) {
465 ALOGD("%s: %s\n", k.string(), v.string());
469 status_t CameraParameters::dump(int fd, const Vector<String16>& /*args*/) const
471 const size_t SIZE = 256;
474 snprintf(buffer, 255, "CameraParameters::dump: mMap.size = %zu\n", mMap.size());
475 result.append(buffer);
476 for (size_t i = 0; i < mMap.size(); i++) {
480 snprintf(buffer, 255, "\t%s: %s\n", k.string(), v.string());
481 result.append(buffer);
483 write(fd, result.string(), result.size());
487 void CameraParameters::getSupportedPreviewFormats(Vector<int>& formats) const {
488 const char* supportedPreviewFormats =
489 get(CameraParameters::KEY_SUPPORTED_PREVIEW_FORMATS);
491 if (supportedPreviewFormats == NULL) {
492 ALOGW("%s: No supported preview formats.", __FUNCTION__);
496 String8 fmtStr(supportedPreviewFormats);
497 char* prevFmts = fmtStr.lockBuffer(fmtStr.size());
500 char* fmt = strtok_r(prevFmts, ",", &savePtr);
502 int actual = previewFormatToEnum(fmt);
506 fmt = strtok_r(NULL, ",", &savePtr);
508 fmtStr.unlockBuffer(fmtStr.size());
512 int CameraParameters::previewFormatToEnum(const char* format) {
515 HAL_PIXEL_FORMAT_YCrCb_420_SP :
516 !strcmp(format, PIXEL_FORMAT_YUV422SP) ?
517 HAL_PIXEL_FORMAT_YCbCr_422_SP : // NV16
518 !strcmp(format, PIXEL_FORMAT_YUV420SP) ?
519 HAL_PIXEL_FORMAT_YCrCb_420_SP : // NV21
520 !strcmp(format, PIXEL_FORMAT_YUV422I) ?
521 HAL_PIXEL_FORMAT_YCbCr_422_I : // YUY2
522 !strcmp(format, PIXEL_FORMAT_YUV420P) ?
523 HAL_PIXEL_FORMAT_YV12 : // YV12
524 !strcmp(format, PIXEL_FORMAT_RGB565) ?
525 HAL_PIXEL_FORMAT_RGB_565 : // RGB565
526 !strcmp(format, PIXEL_FORMAT_RGBA8888) ?
527 HAL_PIXEL_FORMAT_RGBA_8888 : // RGB8888
528 !strcmp(format, PIXEL_FORMAT_BAYER_RGGB) ?
529 HAL_PIXEL_FORMAT_RAW16 : // Raw sensor data
533 bool CameraParameters::isEmpty() const {
534 return mMap.isEmpty();
537 }; // namespace android