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00033 #ifdef HAVE_CONFIG_H
00034 #include "autoconfig.h"
00035 #endif
00036
00037 #ifdef HAVE_LIBEXIF
00038
00039 #include "libexif_handler.h"
00040 #include "tools.h"
00041 #include "config_manager.h"
00042 #include "mem_io_handler.h"
00043
00044 using namespace zmm;
00045 using namespace mxml;
00046
00047 LibExifHandler::LibExifHandler() : MetadataHandler()
00048 {
00049 }
00050
00051 static int getTagFromString(String tag)
00052 {
00053 if (tag == "EXIF_TAG_INTEROPERABILITY_INDEX")
00054 return EXIF_TAG_INTEROPERABILITY_INDEX;
00055 if (tag == "EXIF_TAG_INTEROPERABILITY_VERSION")
00056 return EXIF_TAG_INTEROPERABILITY_VERSION;
00057 if (tag == "EXIF_TAG_IMAGE_WIDTH")
00058 return EXIF_TAG_IMAGE_WIDTH;
00059 if (tag == "EXIF_TAG_IMAGE_LENGTH")
00060 return EXIF_TAG_IMAGE_LENGTH;
00061 if (tag == "EXIF_TAG_BITS_PER_SAMPLE")
00062 return EXIF_TAG_BITS_PER_SAMPLE;
00063 if (tag == "EXIF_TAG_COMPRESSION")
00064 return EXIF_TAG_COMPRESSION;
00065 if (tag == "EXIF_TAG_PHOTOMETRIC_INTERPRETATION")
00066 return EXIF_TAG_PHOTOMETRIC_INTERPRETATION;
00067 if (tag == "EXIF_TAG_FILL_ORDER")
00068 return EXIF_TAG_FILL_ORDER;
00069 if (tag == "EXIF_TAG_DOCUMENT_NAME")
00070 return EXIF_TAG_DOCUMENT_NAME;
00071 if (tag == "EXIF_TAG_IMAGE_DESCRIPTION")
00072 return EXIF_TAG_IMAGE_DESCRIPTION;
00073 if (tag == "EXIF_TAG_MAKE")
00074 return EXIF_TAG_MAKE;
00075 if (tag == "EXIF_TAG_MODEL")
00076 return EXIF_TAG_MODEL;
00077 if (tag == "EXIF_TAG_STRIP_OFFSETS")
00078 return EXIF_TAG_STRIP_OFFSETS;
00079 if (tag == "EXIF_TAG_ORIENTATION")
00080 return EXIF_TAG_ORIENTATION;
00081 if (tag == "EXIF_TAG_SAMPLES_PER_PIXEL")
00082 return EXIF_TAG_SAMPLES_PER_PIXEL;
00083 if (tag == "EXIF_TAG_ROWS_PER_STRIP")
00084 return EXIF_TAG_ROWS_PER_STRIP;
00085 if (tag == "EXIF_TAG_STRIP_BYTE_COUNTS")
00086 return EXIF_TAG_STRIP_BYTE_COUNTS;
00087 if (tag == "EXIF_TAG_X_RESOLUTION")
00088 return EXIF_TAG_X_RESOLUTION;
00089 if (tag == "EXIF_TAG_Y_RESOLUTION")
00090 return EXIF_TAG_Y_RESOLUTION;
00091 if (tag == "EXIF_TAG_PLANAR_CONFIGURATION")
00092 return EXIF_TAG_PLANAR_CONFIGURATION;
00093 if (tag == "EXIF_TAG_RESOLUTION_UNIT")
00094 return EXIF_TAG_RESOLUTION_UNIT;
00095 if (tag == "EXIF_TAG_TRANSFER_FUNCTION")
00096 return EXIF_TAG_TRANSFER_FUNCTION;
00097 if (tag == "EXIF_TAG_SOFTWARE")
00098 return EXIF_TAG_SOFTWARE;
00099 if (tag == "EXIF_TAG_DATE_TIME")
00100 return EXIF_TAG_DATE_TIME;
00101 if (tag == "EXIF_TAG_ARTIST")
00102 return EXIF_TAG_ARTIST;
00103 if (tag == "EXIF_TAG_WHITE_POINT")
00104 return EXIF_TAG_WHITE_POINT;
00105 if (tag == "EXIF_TAG_PRIMARY_CHROMATICITIES")
00106 return EXIF_TAG_PRIMARY_CHROMATICITIES;
00107 if (tag == "EXIF_TAG_TRANSFER_RANGE")
00108 return EXIF_TAG_TRANSFER_RANGE;
00109 if (tag == "EXIF_TAG_JPEG_PROC")
00110 return EXIF_TAG_JPEG_PROC;
00111 if (tag == "EXIF_TAG_JPEG_INTERCHANGE_FORMAT")
00112 return EXIF_TAG_JPEG_INTERCHANGE_FORMAT;
00113 if (tag == "EXIF_TAG_JPEG_INTERCHANGE_FORMAT_LENGTH")
00114 return EXIF_TAG_JPEG_INTERCHANGE_FORMAT_LENGTH;
00115 if (tag == "EXIF_TAG_YCBCR_COEFFICIENTS")
00116 return EXIF_TAG_YCBCR_COEFFICIENTS;
00117 if (tag == "EXIF_TAG_YCBCR_SUB_SAMPLING")
00118 return EXIF_TAG_YCBCR_SUB_SAMPLING;
00119 if (tag == "EXIF_TAG_YCBCR_POSITIONING")
00120 return EXIF_TAG_YCBCR_POSITIONING;
00121 if (tag == "EXIF_TAG_REFERENCE_BLACK_WHITE")
00122 return EXIF_TAG_REFERENCE_BLACK_WHITE;
00123 if (tag == "EXIF_TAG_RELATED_IMAGE_FILE_FORMAT")
00124 return EXIF_TAG_RELATED_IMAGE_FILE_FORMAT;
00125 if (tag == "EXIF_TAG_RELATED_IMAGE_WIDTH")
00126 return EXIF_TAG_RELATED_IMAGE_WIDTH;
00127 if (tag == "EXIF_TAG_RELATED_IMAGE_LENGTH")
00128 return EXIF_TAG_RELATED_IMAGE_LENGTH;
00129 if (tag == "EXIF_TAG_CFA_REPEAT_PATTERN_DIM")
00130 return EXIF_TAG_CFA_REPEAT_PATTERN_DIM;
00131 if (tag == "EXIF_TAG_CFA_PATTERN")
00132 return EXIF_TAG_CFA_PATTERN;
00133 if (tag == "EXIF_TAG_BATTERY_LEVEL")
00134 return EXIF_TAG_BATTERY_LEVEL;
00135 if (tag == "EXIF_TAG_COPYRIGHT")
00136 return EXIF_TAG_COPYRIGHT;
00137 if (tag == "EXIF_TAG_EXPOSURE_TIME")
00138 return EXIF_TAG_EXPOSURE_TIME;
00139 if (tag == "EXIF_TAG_FNUMBER")
00140 return EXIF_TAG_FNUMBER;
00141 if (tag == "EXIF_TAG_IPTC_NAA")
00142 return EXIF_TAG_IPTC_NAA;
00143 if (tag == "EXIF_TAG_EXIF_IFD_POINTER")
00144 return EXIF_TAG_EXIF_IFD_POINTER;
00145 if (tag == "EXIF_TAG_INTER_COLOR_PROFILE")
00146 return EXIF_TAG_INTER_COLOR_PROFILE;
00147 if (tag == "EXIF_TAG_EXPOSURE_PROGRAM")
00148 return EXIF_TAG_EXPOSURE_PROGRAM;
00149 if (tag == "EXIF_TAG_SPECTRAL_SENSITIVITY")
00150 return EXIF_TAG_SPECTRAL_SENSITIVITY;
00151 if (tag == "EXIF_TAG_GPS_INFO_IFD_POINTER")
00152 return EXIF_TAG_GPS_INFO_IFD_POINTER;
00153 if (tag == "EXIF_TAG_ISO_SPEED_RATINGS")
00154 return EXIF_TAG_ISO_SPEED_RATINGS;
00155 if (tag == "EXIF_TAG_OECF")
00156 return EXIF_TAG_OECF;
00157 if (tag == "EXIF_TAG_EXIF_VERSION")
00158 return EXIF_TAG_EXIF_VERSION;
00159 if (tag == "EXIF_TAG_DATE_TIME_ORIGINAL")
00160 return EXIF_TAG_DATE_TIME_ORIGINAL;
00161 if (tag == "EXIF_TAG_DATE_TIME_DIGITIZED")
00162 return EXIF_TAG_DATE_TIME_DIGITIZED;
00163 if (tag == "EXIF_TAG_COMPONENTS_CONFIGURATION")
00164 return EXIF_TAG_COMPONENTS_CONFIGURATION;
00165 if (tag == "EXIF_TAG_COMPRESSED_BITS_PER_PIXEL")
00166 return EXIF_TAG_COMPRESSED_BITS_PER_PIXEL;
00167 if (tag == "EXIF_TAG_SHUTTER_SPEED_VALUE")
00168 return EXIF_TAG_SHUTTER_SPEED_VALUE;
00169 if (tag == "EXIF_TAG_APERTURE_VALUE")
00170 return EXIF_TAG_APERTURE_VALUE;
00171 if (tag == "EXIF_TAG_BRIGHTNESS_VALUE")
00172 return EXIF_TAG_BRIGHTNESS_VALUE;
00173 if (tag == "EXIF_TAG_EXPOSURE_BIAS_VALUE")
00174 return EXIF_TAG_EXPOSURE_BIAS_VALUE;
00175 if (tag == "EXIF_TAG_MAX_APERTURE_VALUE")
00176 return EXIF_TAG_MAX_APERTURE_VALUE;
00177 if (tag == "EXIF_TAG_SUBJECT_DISTANCE")
00178 return EXIF_TAG_SUBJECT_DISTANCE;
00179 if (tag == "EXIF_TAG_METERING_MODE")
00180 return EXIF_TAG_METERING_MODE;
00181 if (tag == "EXIF_TAG_LIGHT_SOURCE")
00182 return EXIF_TAG_LIGHT_SOURCE;
00183 if (tag == "EXIF_TAG_FLASH")
00184 return EXIF_TAG_FLASH;
00185 if (tag == "EXIF_TAG_FOCAL_LENGTH")
00186 return EXIF_TAG_FOCAL_LENGTH;
00187 if (tag == "EXIF_TAG_SUBJECT_AREA")
00188 return EXIF_TAG_SUBJECT_AREA;
00189 if (tag == "EXIF_TAG_MAKER_NOTE")
00190 return EXIF_TAG_MAKER_NOTE;
00191 if (tag == "EXIF_TAG_USER_COMMENT")
00192 return EXIF_TAG_USER_COMMENT;
00193
00194
00195 if (tag == "EXIF_TAG_SUB_SEC_TIME_ORIGINAL")
00196 return EXIF_TAG_SUB_SEC_TIME_ORIGINAL;
00197 if (tag == "EXIF_TAG_SUB_SEC_TIME_DIGITIZED")
00198 return EXIF_TAG_SUB_SEC_TIME_DIGITIZED;
00199 if (tag == "EXIF_TAG_FLASH_PIX_VERSION")
00200 return EXIF_TAG_FLASH_PIX_VERSION;
00201 if (tag == "EXIF_TAG_COLOR_SPACE")
00202 return EXIF_TAG_COLOR_SPACE;
00203 if (tag == "EXIF_TAG_PIXEL_X_DIMENSION")
00204 return EXIF_TAG_PIXEL_X_DIMENSION;
00205 if (tag == "EXIF_TAG_PIXEL_Y_DIMENSION")
00206 return EXIF_TAG_PIXEL_Y_DIMENSION;
00207 if (tag == "EXIF_TAG_RELATED_SOUND_FILE")
00208 return EXIF_TAG_RELATED_SOUND_FILE;
00209 if (tag == "EXIF_TAG_INTEROPERABILITY_IFD_POINTER")
00210 return EXIF_TAG_INTEROPERABILITY_IFD_POINTER;
00211 if (tag == "EXIF_TAG_FLASH_ENERGY")
00212 return EXIF_TAG_FLASH_ENERGY;
00213 if (tag == "EXIF_TAG_SPATIAL_FREQUENCY_RESPONSE")
00214 return EXIF_TAG_SPATIAL_FREQUENCY_RESPONSE;
00215 if (tag == "EXIF_TAG_FOCAL_PLANE_X_RESOLUTION")
00216 return EXIF_TAG_FOCAL_PLANE_X_RESOLUTION;
00217 if (tag == "EXIF_TAG_FOCAL_PLANE_Y_RESOLUTION")
00218 return EXIF_TAG_FOCAL_PLANE_Y_RESOLUTION;
00219 if (tag == "EXIF_TAG_FOCAL_PLANE_RESOLUTION_UNIT")
00220 return EXIF_TAG_FOCAL_PLANE_RESOLUTION_UNIT;
00221 if (tag == "EXIF_TAG_SUBJECT_LOCATION")
00222 return EXIF_TAG_SUBJECT_LOCATION;
00223 if (tag == "EXIF_TAG_EXPOSURE_INDEX")
00224 return EXIF_TAG_EXPOSURE_INDEX;
00225 if (tag == "EXIF_TAG_SENSING_METHOD")
00226 return EXIF_TAG_SENSING_METHOD;
00227 if (tag == "EXIF_TAG_FILE_SOURCE")
00228 return EXIF_TAG_FILE_SOURCE;
00229 if (tag == "EXIF_TAG_SCENE_TYPE")
00230 return EXIF_TAG_SCENE_TYPE;
00231 if (tag == "EXIF_TAG_NEW_CFA_PATTERN")
00232 return EXIF_TAG_NEW_CFA_PATTERN;
00233 if (tag == "EXIF_TAG_CUSTOM_RENDERED")
00234 return EXIF_TAG_CUSTOM_RENDERED;
00235 if (tag == "EXIF_TAG_EXPOSURE_MODE")
00236 return EXIF_TAG_CUSTOM_RENDERED;
00237 if (tag == "EXIF_TAG_WHITE_BALANCE")
00238 return EXIF_TAG_CUSTOM_RENDERED;
00239 if (tag == "EXIF_TAG_DIGITAL_ZOOM_RATIO")
00240 return EXIF_TAG_CUSTOM_RENDERED;
00241 if (tag == "EXIF_TAG_FOCAL_LENGTH_IN_35MM_FILM")
00242 return EXIF_TAG_FOCAL_LENGTH_IN_35MM_FILM;
00243 if (tag == "EXIF_TAG_SCENE_CAPTURE_TYPE")
00244 return EXIF_TAG_SCENE_CAPTURE_TYPE;
00245 if (tag == "EXIF_TAG_GAIN_CONTROL")
00246 return EXIF_TAG_GAIN_CONTROL;
00247 if (tag == "EXIF_TAG_CONTRAST")
00248 return EXIF_TAG_CONTRAST;
00249 if (tag == "EXIF_TAG_SATURATION")
00250 return EXIF_TAG_SATURATION;
00251 if (tag == "EXIF_TAG_SHARPNESS")
00252 return EXIF_TAG_SHARPNESS;
00253 if (tag == "EXIF_TAG_DEVICE_SETTING_DESCRIPTION")
00254 return EXIF_TAG_DEVICE_SETTING_DESCRIPTION;
00255 if (tag == "EXIF_TAG_SUBJECT_DISTANCE_RANGE")
00256 return EXIF_TAG_DEVICE_SETTING_DESCRIPTION;
00257 if (tag == "EXIF_TAG_IMAGE_UNIQUE_ID")
00258 return EXIF_TAG_IMAGE_UNIQUE_ID;
00259
00260 log_warning("Ignoring unknown libexif tag: %s\n", tag.c_str());
00261 return -1;
00262 }
00263
00264
00265
00266 #ifdef EXIF_EGV_1
00267 #define exif_egv(arg) exif_entry_get_value(arg)
00268 #endif
00269
00270 #ifdef EXIF_EGV_3
00271 #define BUFLEN 4096
00272 char exif_entry_buffer[BUFLEN];
00273 #define exif_egv(arg) exif_entry_get_value(arg, exif_entry_buffer, BUFLEN)
00274 #endif
00275
00276 void LibExifHandler::process_ifd (ExifContent *content, Ref<CdsItem> item, Ref<StringConverter> sc, Ref<Array<StringBase> > auxtags)
00277 {
00278 ExifEntry *e;
00279 unsigned int i;
00280 String value;
00281 String tmp;
00282
00283
00284 for (i = 0; i < content->count; i++) {
00285 e = content->entries[i];
00286
00287
00288
00289 switch (e->tag)
00290 {
00291 case EXIF_TAG_DATE_TIME_ORIGINAL:
00292 value = (char *)exif_egv(e);
00293 value = trim_string(value);
00294 if (string_ok(value))
00295 {
00296 value = sc->convert(value);
00297
00299
00300 if (value.length() >= 11)
00301 {
00302 value = value.substring(0, 4) + "-" +
00303 value.substring(5, 2) + "-" +
00304 value.substring(8, 2);
00305 item->setMetadata(MetadataHandler::getMetaFieldName(M_DATE), value);
00306 }
00307 }
00308 break;
00309
00310 case EXIF_TAG_USER_COMMENT:
00311 value = (char *)exif_egv(e);
00312 value = trim_string(value);
00313 if (string_ok(value))
00314 {
00315 value = sc->convert(value);
00316 item->setMetadata(MetadataHandler::getMetaFieldName(M_DESCRIPTION), value);
00317 }
00318 break;
00319
00320 case EXIF_TAG_PIXEL_X_DIMENSION:
00321 value = (char *)exif_egv(e);
00322 value = trim_string(value);
00323 if (string_ok(value))
00324 {
00325 value = sc->convert(value);
00326 imageX = value;
00327 }
00328 break;
00329
00330 case EXIF_TAG_PIXEL_Y_DIMENSION:
00331 value = (char *)exif_egv(e);
00332 value = trim_string(value);
00333 if (string_ok(value))
00334 {
00335 value = sc->convert(value);
00336 imageY = value;
00337 }
00338 break;
00339 default:
00340 break;
00341 }
00342
00343
00344 if (auxtags != nil)
00345 {
00346 for (int j = 0; j < auxtags->size(); j++)
00347 {
00348
00349 tmp = auxtags->get(j);
00350 if (string_ok(tmp))
00351 {
00352 if (e->tag == getTagFromString(tmp))
00353 {
00354 value = (char *)exif_egv(e);
00355 value = trim_string(value);
00356 if (string_ok(value))
00357 {
00358 value = sc->convert(value);
00359 item->setAuxData(tmp, value);
00360
00361 }
00362 }
00363 }
00364 }
00365 }
00366 }
00367 }
00368
00369
00370 void LibExifHandler::fillMetadata(Ref<CdsItem> item)
00371 {
00372 ExifData *ed;
00373 Ref<Array<StringBase> > aux;
00374
00375 Ref<StringConverter> sc = StringConverter::m2i();
00376
00377 ed = exif_data_new_from_file(item->getLocation().c_str());
00378
00379 if (!ed)
00380 {
00381 log_debug("Exif data not found, attempting to set resolution internally...\n");
00382 set_jpeg_resolution_resource(item, 0);
00383 return;
00384 }
00385
00386 Ref<ConfigManager> cm = ConfigManager::getInstance();
00387 aux = cm->getStringArrayOption(CFG_IMPORT_LIBOPTS_EXIF_AUXDATA_TAGS_LIST);
00388 for (int i = 0; i < EXIF_IFD_COUNT; i++)
00389 {
00390 if (ed->ifd[i])
00391 process_ifd (ed->ifd[i], item, sc, aux);
00392 }
00393
00394
00395 if (string_ok(imageX) && string_ok(imageY))
00396 {
00397 item->getResource(0)->addAttribute(MetadataHandler::getResAttrName(R_RESOLUTION),
00398 imageX + "x" + imageY);
00399 }
00400 else
00401 {
00402 set_jpeg_resolution_resource(item, 0);
00403 }
00404
00405 if (ed->size)
00406 {
00407 try
00408 {
00409 Ref<IOHandler> io_h(new MemIOHandler(ed->data, ed->size));
00410 io_h->open(UPNP_READ);
00411 String th_resolution = get_jpeg_resolution(io_h);
00412 log_debug("RESOLUTION: %s\n", th_resolution.c_str());
00413
00414 Ref<CdsResource> resource(new CdsResource(CH_LIBEXIF));
00415 resource->addAttribute(MetadataHandler::getResAttrName(R_PROTOCOLINFO), renderProtocolInfo(item->getMimeType()));
00416 resource->addAttribute(MetadataHandler::getResAttrName(R_RESOLUTION), th_resolution);
00417 resource->addParameter(_(RESOURCE_CONTENT_TYPE), _(EXIF_THUMBNAIL));
00418 item->addResource(resource);
00419 }
00420 catch (Exception e)
00421 {
00422 e.printStackTrace();
00423 }
00424
00425 }
00426 exif_data_unref(ed);
00427 }
00428
00429 Ref<IOHandler> LibExifHandler::serveContent(Ref<CdsItem> item, int resNum, off_t *data_size)
00430 {
00431 ExifData *ed;
00432 Ref<CdsResource> res = item->getResource(resNum);
00433
00434 String ctype = res->getParameters()->get(_(RESOURCE_CONTENT_TYPE));
00435
00436 if (ctype != EXIF_THUMBNAIL)
00437 throw _Exception(_("LibExifHandler: got unknown content type: ") + ctype);
00438 ed = exif_data_new_from_file(item->getLocation().c_str());
00439 if (!ed)
00440 throw _Exception(_("LibExifHandler: resource has no exif information"));
00441
00442 if (!(ed->size))
00443 throw _Exception(_("LibExifHandler: resource has no exif thumbnail"));
00444
00445 Ref<IOHandler> h(new MemIOHandler(ed->data, ed->size));
00446 *data_size = ed->size;
00447
00448 exif_data_unref(ed);
00449
00450 return h;
00451 }
00452
00453 #endif // HAVE_LIBEXIF
