/* ** ** Copyright 2008, The Android Open Source Project ** ** Licensed under the Apache License, Version 2.0 (the "License"); ** you may not use this file except in compliance with the License. ** You may obtain a copy of the License at ** ** http://www.apache.org/licenses/LICENSE-2.0 ** ** Unless required by applicable law or agreed to in writing, software ** distributed under the License is distributed on an "AS IS" BASIS, ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. ** See the License for the specific language governing permissions and ** limitations under the License. */ #define LOG_TAG "CameraParams" #include <utils/Log.h> #include <string.h> #include <stdlib.h> #include <camera/CameraParameters.h> #include <system/graphics.h> namespace android { // Parameter keys to communicate between camera application and driver. const char CameraParameters::KEY_PREVIEW_SIZE[] = "preview-size"; const char CameraParameters::KEY_SUPPORTED_PREVIEW_SIZES[] = "preview-size-values"; const char CameraParameters::KEY_PREVIEW_FORMAT[] = "preview-format"; const char CameraParameters::KEY_SUPPORTED_PREVIEW_FORMATS[] = "preview-format-values"; const char CameraParameters::KEY_PREVIEW_FRAME_RATE[] = "preview-frame-rate"; const char CameraParameters::KEY_SUPPORTED_PREVIEW_FRAME_RATES[] = "preview-frame-rate-values"; const char CameraParameters::KEY_PREVIEW_FPS_RANGE[] = "preview-fps-range"; const char CameraParameters::KEY_SUPPORTED_PREVIEW_FPS_RANGE[] = "preview-fps-range-values"; const char CameraParameters::KEY_PICTURE_SIZE[] = "picture-size"; const char CameraParameters::KEY_SUPPORTED_PICTURE_SIZES[] = "picture-size-values"; const char CameraParameters::KEY_PICTURE_FORMAT[] = "picture-format"; const char CameraParameters::KEY_SUPPORTED_PICTURE_FORMATS[] = "picture-format-values"; const char CameraParameters::KEY_JPEG_THUMBNAIL_WIDTH[] = "jpeg-thumbnail-width"; const char CameraParameters::KEY_JPEG_THUMBNAIL_HEIGHT[] = "jpeg-thumbnail-height"; const char CameraParameters::KEY_SUPPORTED_JPEG_THUMBNAIL_SIZES[] = "jpeg-thumbnail-size-values"; const char CameraParameters::KEY_JPEG_THUMBNAIL_QUALITY[] = "jpeg-thumbnail-quality"; const char CameraParameters::KEY_JPEG_QUALITY[] = "jpeg-quality"; const char CameraParameters::KEY_ROTATION[] = "rotation"; const char CameraParameters::KEY_GPS_LATITUDE[] = "gps-latitude"; const char CameraParameters::KEY_GPS_LONGITUDE[] = "gps-longitude"; const char CameraParameters::KEY_GPS_ALTITUDE[] = "gps-altitude"; const char CameraParameters::KEY_GPS_TIMESTAMP[] = "gps-timestamp"; const char CameraParameters::KEY_GPS_PROCESSING_METHOD[] = "gps-processing-method"; const char CameraParameters::KEY_WHITE_BALANCE[] = "whitebalance"; const char CameraParameters::KEY_SUPPORTED_WHITE_BALANCE[] = "whitebalance-values"; const char CameraParameters::KEY_EFFECT[] = "effect"; const char CameraParameters::KEY_SUPPORTED_EFFECTS[] = "effect-values"; const char CameraParameters::KEY_ANTIBANDING[] = "antibanding"; const char CameraParameters::KEY_SUPPORTED_ANTIBANDING[] = "antibanding-values"; const char CameraParameters::KEY_SCENE_MODE[] = "scene-mode"; const char CameraParameters::KEY_SUPPORTED_SCENE_MODES[] = "scene-mode-values"; const char CameraParameters::KEY_FLASH_MODE[] = "flash-mode"; const char CameraParameters::KEY_SUPPORTED_FLASH_MODES[] = "flash-mode-values"; const char CameraParameters::KEY_FOCUS_MODE[] = "focus-mode"; const char CameraParameters::KEY_SUPPORTED_FOCUS_MODES[] = "focus-mode-values"; const char CameraParameters::KEY_MAX_NUM_FOCUS_AREAS[] = "max-num-focus-areas"; const char CameraParameters::KEY_FOCUS_AREAS[] = "focus-areas"; const char CameraParameters::KEY_FOCAL_LENGTH[] = "focal-length"; const char CameraParameters::KEY_HORIZONTAL_VIEW_ANGLE[] = "horizontal-view-angle"; const char CameraParameters::KEY_VERTICAL_VIEW_ANGLE[] = "vertical-view-angle"; const char CameraParameters::KEY_EXPOSURE_COMPENSATION[] = "exposure-compensation"; const char CameraParameters::KEY_MAX_EXPOSURE_COMPENSATION[] = "max-exposure-compensation"; const char CameraParameters::KEY_MIN_EXPOSURE_COMPENSATION[] = "min-exposure-compensation"; const char CameraParameters::KEY_EXPOSURE_COMPENSATION_STEP[] = "exposure-compensation-step"; const char CameraParameters::KEY_AUTO_EXPOSURE_LOCK[] = "auto-exposure-lock"; const char CameraParameters::KEY_AUTO_EXPOSURE_LOCK_SUPPORTED[] = "auto-exposure-lock-supported"; const char CameraParameters::KEY_AUTO_WHITEBALANCE_LOCK[] = "auto-whitebalance-lock"; const char CameraParameters::KEY_AUTO_WHITEBALANCE_LOCK_SUPPORTED[] = "auto-whitebalance-lock-supported"; const char CameraParameters::KEY_MAX_NUM_METERING_AREAS[] = "max-num-metering-areas"; const char CameraParameters::KEY_METERING_AREAS[] = "metering-areas"; const char CameraParameters::KEY_ZOOM[] = "zoom"; const char CameraParameters::KEY_MAX_ZOOM[] = "max-zoom"; const char CameraParameters::KEY_ZOOM_RATIOS[] = "zoom-ratios"; const char CameraParameters::KEY_ZOOM_SUPPORTED[] = "zoom-supported"; const char CameraParameters::KEY_SMOOTH_ZOOM_SUPPORTED[] = "smooth-zoom-supported"; const char CameraParameters::KEY_FOCUS_DISTANCES[] = "focus-distances"; const char CameraParameters::KEY_VIDEO_FRAME_FORMAT[] = "video-frame-format"; const char CameraParameters::KEY_VIDEO_SIZE[] = "video-size"; const char CameraParameters::KEY_SUPPORTED_VIDEO_SIZES[] = "video-size-values"; const char CameraParameters::KEY_PREFERRED_PREVIEW_SIZE_FOR_VIDEO[] = "preferred-preview-size-for-video"; const char CameraParameters::KEY_MAX_NUM_DETECTED_FACES_HW[] = "max-num-detected-faces-hw"; const char CameraParameters::KEY_MAX_NUM_DETECTED_FACES_SW[] = "max-num-detected-faces-sw"; const char CameraParameters::KEY_RECORDING_HINT[] = "recording-hint"; const char CameraParameters::KEY_VIDEO_SNAPSHOT_SUPPORTED[] = "video-snapshot-supported"; const char CameraParameters::KEY_VIDEO_STABILIZATION[] = "video-stabilization"; const char CameraParameters::KEY_VIDEO_STABILIZATION_SUPPORTED[] = "video-stabilization-supported"; const char CameraParameters::KEY_LIGHTFX[] = "light-fx"; const char CameraParameters::TRUE[] = "true"; const char CameraParameters::FALSE[] = "false"; const char CameraParameters::FOCUS_DISTANCE_INFINITY[] = "Infinity"; // Values for white balance settings. const char CameraParameters::WHITE_BALANCE_AUTO[] = "auto"; const char CameraParameters::WHITE_BALANCE_INCANDESCENT[] = "incandescent"; const char CameraParameters::WHITE_BALANCE_FLUORESCENT[] = "fluorescent"; const char CameraParameters::WHITE_BALANCE_WARM_FLUORESCENT[] = "warm-fluorescent"; const char CameraParameters::WHITE_BALANCE_DAYLIGHT[] = "daylight"; const char CameraParameters::WHITE_BALANCE_CLOUDY_DAYLIGHT[] = "cloudy-daylight"; const char CameraParameters::WHITE_BALANCE_TWILIGHT[] = "twilight"; const char CameraParameters::WHITE_BALANCE_SHADE[] = "shade"; // Values for effect settings. const char CameraParameters::EFFECT_NONE[] = "none"; const char CameraParameters::EFFECT_MONO[] = "mono"; const char CameraParameters::EFFECT_NEGATIVE[] = "negative"; const char CameraParameters::EFFECT_SOLARIZE[] = "solarize"; const char CameraParameters::EFFECT_SEPIA[] = "sepia"; const char CameraParameters::EFFECT_POSTERIZE[] = "posterize"; const char CameraParameters::EFFECT_WHITEBOARD[] = "whiteboard"; const char CameraParameters::EFFECT_BLACKBOARD[] = "blackboard"; const char CameraParameters::EFFECT_AQUA[] = "aqua"; // Values for antibanding settings. const char CameraParameters::ANTIBANDING_AUTO[] = "auto"; const char CameraParameters::ANTIBANDING_50HZ[] = "50hz"; const char CameraParameters::ANTIBANDING_60HZ[] = "60hz"; const char CameraParameters::ANTIBANDING_OFF[] = "off"; // Values for flash mode settings. const char CameraParameters::FLASH_MODE_OFF[] = "off"; const char CameraParameters::FLASH_MODE_AUTO[] = "auto"; const char CameraParameters::FLASH_MODE_ON[] = "on"; const char CameraParameters::FLASH_MODE_RED_EYE[] = "red-eye"; const char CameraParameters::FLASH_MODE_TORCH[] = "torch"; // Values for scene mode settings. const char CameraParameters::SCENE_MODE_AUTO[] = "auto"; const char CameraParameters::SCENE_MODE_ACTION[] = "action"; const char CameraParameters::SCENE_MODE_PORTRAIT[] = "portrait"; const char CameraParameters::SCENE_MODE_LANDSCAPE[] = "landscape"; const char CameraParameters::SCENE_MODE_NIGHT[] = "night"; const char CameraParameters::SCENE_MODE_NIGHT_PORTRAIT[] = "night-portrait"; const char CameraParameters::SCENE_MODE_THEATRE[] = "theatre"; const char CameraParameters::SCENE_MODE_BEACH[] = "beach"; const char CameraParameters::SCENE_MODE_SNOW[] = "snow"; const char CameraParameters::SCENE_MODE_SUNSET[] = "sunset"; const char CameraParameters::SCENE_MODE_STEADYPHOTO[] = "steadyphoto"; const char CameraParameters::SCENE_MODE_FIREWORKS[] = "fireworks"; const char CameraParameters::SCENE_MODE_SPORTS[] = "sports"; const char CameraParameters::SCENE_MODE_PARTY[] = "party"; const char CameraParameters::SCENE_MODE_CANDLELIGHT[] = "candlelight"; const char CameraParameters::SCENE_MODE_BARCODE[] = "barcode"; const char CameraParameters::SCENE_MODE_HDR[] = "hdr"; const char CameraParameters::PIXEL_FORMAT_YUV422SP[] = "yuv422sp"; const char CameraParameters::PIXEL_FORMAT_YUV420SP[] = "yuv420sp"; const char CameraParameters::PIXEL_FORMAT_YUV422I[] = "yuv422i-yuyv"; const char CameraParameters::PIXEL_FORMAT_YUV420P[] = "yuv420p"; const char CameraParameters::PIXEL_FORMAT_RGB565[] = "rgb565"; const char CameraParameters::PIXEL_FORMAT_RGBA8888[] = "rgba8888"; const char CameraParameters::PIXEL_FORMAT_JPEG[] = "jpeg"; const char CameraParameters::PIXEL_FORMAT_BAYER_RGGB[] = "bayer-rggb"; const char CameraParameters::PIXEL_FORMAT_ANDROID_OPAQUE[] = "android-opaque"; // Values for focus mode settings. const char CameraParameters::FOCUS_MODE_AUTO[] = "auto"; const char CameraParameters::FOCUS_MODE_INFINITY[] = "infinity"; const char CameraParameters::FOCUS_MODE_MACRO[] = "macro"; const char CameraParameters::FOCUS_MODE_FIXED[] = "fixed"; const char CameraParameters::FOCUS_MODE_EDOF[] = "edof"; const char CameraParameters::FOCUS_MODE_CONTINUOUS_VIDEO[] = "continuous-video"; const char CameraParameters::FOCUS_MODE_CONTINUOUS_PICTURE[] = "continuous-picture"; // Values for light fx settings const char CameraParameters::LIGHTFX_LOWLIGHT[] = "low-light"; const char CameraParameters::LIGHTFX_HDR[] = "high-dynamic-range"; CameraParameters::CameraParameters() : mMap() { } CameraParameters::~CameraParameters() { } String8 CameraParameters::flatten() const { String8 flattened(""); size_t size = mMap.size(); for (size_t i = 0; i < size; i++) { String8 k, v; k = mMap.keyAt(i); v = mMap.valueAt(i); flattened += k; flattened += "="; flattened += v; if (i != size-1) flattened += ";"; } return flattened; } void CameraParameters::unflatten(const String8 ¶ms) { const char *a = params.string(); const char *b; mMap.clear(); for (;;) { // Find the bounds of the key name. b = strchr(a, '='); if (b == 0) break; // Create the key string. String8 k(a, (size_t)(b-a)); // Find the value. a = b+1; b = strchr(a, ';'); if (b == 0) { // If there's no semicolon, this is the last item. String8 v(a); mMap.add(k, v); break; } String8 v(a, (size_t)(b-a)); mMap.add(k, v); a = b+1; } } void CameraParameters::set(const char *key, const char *value) { // XXX i think i can do this with strspn() if (strchr(key, '=') || strchr(key, ';')) { //XXX ALOGE("Key \"%s\"contains invalid character (= or ;)", key); return; } if (strchr(value, '=') || strchr(value, ';')) { //XXX ALOGE("Value \"%s\"contains invalid character (= or ;)", value); return; } mMap.replaceValueFor(String8(key), String8(value)); } void CameraParameters::set(const char *key, int value) { char str[16]; sprintf(str, "%d", value); set(key, str); } void CameraParameters::setFloat(const char *key, float value) { char str[16]; // 14 should be enough. We overestimate to be safe. snprintf(str, sizeof(str), "%g", value); set(key, str); } const char *CameraParameters::get(const char *key) const { String8 v = mMap.valueFor(String8(key)); if (v.length() == 0) return 0; return v.string(); } int CameraParameters::getInt(const char *key) const { const char *v = get(key); if (v == 0) return -1; return strtol(v, 0, 0); } float CameraParameters::getFloat(const char *key) const { const char *v = get(key); if (v == 0) return -1; return strtof(v, 0); } void CameraParameters::remove(const char *key) { mMap.removeItem(String8(key)); } // Parse string like "640x480" or "10000,20000" static int parse_pair(const char *str, int *first, int *second, char delim, char **endptr = NULL) { // Find the first integer. char *end; int w = (int)strtol(str, &end, 10); // If a delimeter does not immediately follow, give up. if (*end != delim) { ALOGE("Cannot find delimeter (%c) in str=%s", delim, str); return -1; } // Find the second integer, immediately after the delimeter. int h = (int)strtol(end+1, &end, 10); *first = w; *second = h; if (endptr) { *endptr = end; } return 0; } static void parseSizesList(const char *sizesStr, Vector<Size> &sizes) { if (sizesStr == 0) { return; } char *sizeStartPtr = (char *)sizesStr; while (true) { int width, height; int success = parse_pair(sizeStartPtr, &width, &height, 'x', &sizeStartPtr); if (success == -1 || (*sizeStartPtr != ',' && *sizeStartPtr != '\0')) { ALOGE("Picture sizes string \"%s\" contains invalid character.", sizesStr); return; } sizes.push(Size(width, height)); if (*sizeStartPtr == '\0') { return; } sizeStartPtr++; } } void CameraParameters::setPreviewSize(int width, int height) { char str[32]; sprintf(str, "%dx%d", width, height); set(KEY_PREVIEW_SIZE, str); } void CameraParameters::getPreviewSize(int *width, int *height) const { *width = *height = -1; // Get the current string, if it doesn't exist, leave the -1x-1 const char *p = get(KEY_PREVIEW_SIZE); if (p == 0) return; parse_pair(p, width, height, 'x'); } void CameraParameters::getPreferredPreviewSizeForVideo(int *width, int *height) const { *width = *height = -1; const char *p = get(KEY_PREFERRED_PREVIEW_SIZE_FOR_VIDEO); if (p == 0) return; parse_pair(p, width, height, 'x'); } void CameraParameters::getSupportedPreviewSizes(Vector<Size> &sizes) const { const char *previewSizesStr = get(KEY_SUPPORTED_PREVIEW_SIZES); parseSizesList(previewSizesStr, sizes); } void CameraParameters::setVideoSize(int width, int height) { char str[32]; sprintf(str, "%dx%d", width, height); set(KEY_VIDEO_SIZE, str); } void CameraParameters::getVideoSize(int *width, int *height) const { *width = *height = -1; const char *p = get(KEY_VIDEO_SIZE); if (p == 0) return; parse_pair(p, width, height, 'x'); } void CameraParameters::getSupportedVideoSizes(Vector<Size> &sizes) const { const char *videoSizesStr = get(KEY_SUPPORTED_VIDEO_SIZES); parseSizesList(videoSizesStr, sizes); } void CameraParameters::setPreviewFrameRate(int fps) { set(KEY_PREVIEW_FRAME_RATE, fps); } int CameraParameters::getPreviewFrameRate() const { return getInt(KEY_PREVIEW_FRAME_RATE); } void CameraParameters::getPreviewFpsRange(int *min_fps, int *max_fps) const { *min_fps = *max_fps = -1; const char *p = get(KEY_PREVIEW_FPS_RANGE); if (p == 0) return; parse_pair(p, min_fps, max_fps, ','); } void CameraParameters::setPreviewFormat(const char *format) { set(KEY_PREVIEW_FORMAT, format); } const char *CameraParameters::getPreviewFormat() const { return get(KEY_PREVIEW_FORMAT); } void CameraParameters::setPictureSize(int width, int height) { char str[32]; sprintf(str, "%dx%d", width, height); set(KEY_PICTURE_SIZE, str); } void CameraParameters::getPictureSize(int *width, int *height) const { *width = *height = -1; // Get the current string, if it doesn't exist, leave the -1x-1 const char *p = get(KEY_PICTURE_SIZE); if (p == 0) return; parse_pair(p, width, height, 'x'); } void CameraParameters::getSupportedPictureSizes(Vector<Size> &sizes) const { const char *pictureSizesStr = get(KEY_SUPPORTED_PICTURE_SIZES); parseSizesList(pictureSizesStr, sizes); } void CameraParameters::setPictureFormat(const char *format) { set(KEY_PICTURE_FORMAT, format); } const char *CameraParameters::getPictureFormat() const { return get(KEY_PICTURE_FORMAT); } void CameraParameters::dump() const { ALOGD("dump: mMap.size = %zu", mMap.size()); for (size_t i = 0; i < mMap.size(); i++) { String8 k, v; k = mMap.keyAt(i); v = mMap.valueAt(i); ALOGD("%s: %s\n", k.string(), v.string()); } } status_t CameraParameters::dump(int fd, const Vector<String16>& /*args*/) const { const size_t SIZE = 256; char buffer[SIZE]; String8 result; snprintf(buffer, 255, "CameraParameters::dump: mMap.size = %zu\n", mMap.size()); result.append(buffer); for (size_t i = 0; i < mMap.size(); i++) { String8 k, v; k = mMap.keyAt(i); v = mMap.valueAt(i); snprintf(buffer, 255, "\t%s: %s\n", k.string(), v.string()); result.append(buffer); } write(fd, result.string(), result.size()); return NO_ERROR; } void CameraParameters::getSupportedPreviewFormats(Vector<int>& formats) const { const char* supportedPreviewFormats = get(CameraParameters::KEY_SUPPORTED_PREVIEW_FORMATS); if (supportedPreviewFormats == NULL) { ALOGW("%s: No supported preview formats.", __FUNCTION__); return; } String8 fmtStr(supportedPreviewFormats); char* prevFmts = fmtStr.lockBuffer(fmtStr.size()); char* savePtr; char* fmt = strtok_r(prevFmts, ",", &savePtr); while (fmt) { int actual = previewFormatToEnum(fmt); if (actual != -1) { formats.add(actual); } fmt = strtok_r(NULL, ",", &savePtr); } fmtStr.unlockBuffer(fmtStr.size()); } int CameraParameters::previewFormatToEnum(const char* format) { return !format ? HAL_PIXEL_FORMAT_YCrCb_420_SP : !strcmp(format, PIXEL_FORMAT_YUV422SP) ? HAL_PIXEL_FORMAT_YCbCr_422_SP : // NV16 !strcmp(format, PIXEL_FORMAT_YUV420SP) ? HAL_PIXEL_FORMAT_YCrCb_420_SP : // NV21 !strcmp(format, PIXEL_FORMAT_YUV422I) ? HAL_PIXEL_FORMAT_YCbCr_422_I : // YUY2 !strcmp(format, PIXEL_FORMAT_YUV420P) ? HAL_PIXEL_FORMAT_YV12 : // YV12 !strcmp(format, PIXEL_FORMAT_RGB565) ? HAL_PIXEL_FORMAT_RGB_565 : // RGB565 !strcmp(format, PIXEL_FORMAT_RGBA8888) ? HAL_PIXEL_FORMAT_RGBA_8888 : // RGB8888 !strcmp(format, PIXEL_FORMAT_BAYER_RGGB) ? HAL_PIXEL_FORMAT_RAW16 : // Raw sensor data -1; } bool CameraParameters::isEmpty() const { return mMap.isEmpty(); } }; // namespace android