diff options
Diffstat (limited to 'src/tracker-extract/tracker-extract-gif.c')
| -rw-r--r-- | src/tracker-extract/tracker-extract-gif.c | 525 |
1 files changed, 0 insertions, 525 deletions
diff --git a/src/tracker-extract/tracker-extract-gif.c b/src/tracker-extract/tracker-extract-gif.c deleted file mode 100644 index f260bd519..000000000 --- a/src/tracker-extract/tracker-extract-gif.c +++ /dev/null @@ -1,525 +0,0 @@ -/* - * Copyright (C) 2006, Jamie McCracken <jamiemcc@gnome.org> - * Copyright (C) 2008, Nokia <ivan.frade@nokia.com> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, - * Boston, MA 02110-1301, USA. - */ - -#include "config.h" - -#include <errno.h> -#include <fcntl.h> -#include <string.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <unistd.h> - -#include <gif_lib.h> - -#include <libtracker-common/tracker-common.h> - -#include <libtracker-extract/tracker-extract.h> - -#define XMP_MAGIC_TRAILER_LENGTH 256 -#define EXTENSION_RECORD_COMMENT_BLOCK_CODE 0xFE - -typedef struct { - const gchar *title; - const gchar *date; - const gchar *artist; -} MergeData; - -typedef struct { - gchar *width; - gchar *height; - gchar *comment; -} GifData; - -typedef struct { - unsigned int byteCount; - char *bytes; -} ExtBlock; - -static int -ext_block_append(ExtBlock *extBlock, - unsigned int len, - unsigned char extData[]) -{ - extBlock->bytes = realloc(extBlock->bytes,extBlock->byteCount+len); - if (extBlock->bytes == NULL) { - return (GIF_ERROR); - } - - memcpy(&(extBlock->bytes[extBlock->byteCount]), &extData[0], len); - extBlock->byteCount += len; - - return (GIF_OK); -} - -#if GIFLIB_MAJOR >= 5 -static inline void -gif_error (const gchar *action, int err) -{ - const char *str = GifErrorString (err); - if (str != NULL) { - g_message ("%s, error: '%s'", action, str); - } else { - g_message ("%s, undefined error %d", action, err); - } -} -#else /* GIFLIB_MAJOR >= 5 */ -static inline void print_gif_error() -{ -#if defined(GIFLIB_MAJOR) && defined(GIFLIB_MINOR) && ((GIFLIB_MAJOR == 4 && GIFLIB_MINOR >= 2) || GIFLIB_MAJOR > 4) - const char *str = GifErrorString (); - if (str != NULL) { - g_message ("GIF, error: '%s'", str); - } else { - g_message ("GIF, undefined error"); - } -#else - PrintGifError(); -#endif -} -#endif /* GIFLIB_MAJOR >= 5 */ - -/* giflib 5.1 changed the API of DGifCloseFile to take two arguments */ -#if !defined(GIFLIB_MAJOR) || \ - !(GIFLIB_MAJOR > 5 || (GIFLIB_MAJOR == 5 && GIFLIB_MINOR >= 1)) -#define DGifCloseFile(a, b) DGifCloseFile(a) -#endif - -static TrackerResource * -read_metadata (GifFileType *gifFile, - const gchar *uri) -{ - TrackerResource *metadata; - GifRecordType RecordType; - int frameheight; - int framewidth; - unsigned char *framedata = NULL; - GPtrArray *keywords; - guint i; - gint h; - int status; - MergeData md = { 0 }; - GifData gd = { 0 }; - TrackerXmpData *xd = NULL; - - do { - GifByteType *ExtData; - int ExtCode; - ExtBlock extBlock; - - if (DGifGetRecordType(gifFile, &RecordType) == GIF_ERROR) { -#if GIFLIB_MAJOR < 5 - print_gif_error (); -#else /* GIFLIB_MAJOR < 5 */ - gif_error ("Could not read next GIF record type", gifFile->Error); -#endif /* GIFLIB_MAJOR < 5 */ - return NULL; - } - - switch (RecordType) { - case IMAGE_DESC_RECORD_TYPE: - if (DGifGetImageDesc(gifFile) == GIF_ERROR) { -#if GIFLIB_MAJOR < 5 - print_gif_error(); -#else /* GIFLIB_MAJOR < 5 */ - gif_error ("Could not get GIF record information", gifFile->Error); -#endif /* GIFLIB_MAJOR < 5 */ - return NULL; - } - - framewidth = gifFile->Image.Width; - frameheight = gifFile->Image.Height; - - framedata = g_malloc_n (framewidth, sizeof(GifPixelType)); - for (h = 0; h < frameheight; h++) - { - if (DGifGetLine(gifFile, framedata, framewidth)==GIF_ERROR) { - g_free (framedata); -#if GIFLIB_MAJOR < 5 - print_gif_error(); -#else /* GIFLIB_MAJOR < 5 */ - gif_error ("Could not load a block of GIF pixes", gifFile->Error); -#endif /* GIFLIB_MAJOR < 5 */ - return NULL; - } - } - - gd.width = g_strdup_printf ("%d", framewidth); - gd.height = g_strdup_printf ("%d", frameheight); - - - g_free (framedata); - - break; - case EXTENSION_RECORD_TYPE: - extBlock.bytes = NULL; - extBlock.byteCount = 0; - - if ((status = DGifGetExtension (gifFile, &ExtCode, &ExtData)) != GIF_OK) { - g_warning ("Problem getting the extension"); - return NULL; - } -#if defined(HAVE_EXEMPI) - if (ExtData && *ExtData && - strncmp (&ExtData[1],"XMP Data",8) == 0) { - while (ExtData != NULL && status == GIF_OK ) { - if ((status = DGifGetExtensionNext (gifFile, &ExtData)) == GIF_OK) { - if (ExtData != NULL) { - if (ext_block_append (&extBlock, ExtData[0]+1, (char *) &(ExtData[0])) != GIF_OK) { - g_warning ("Problem with extension data"); - return NULL; - } - } - } - } - - xd = tracker_xmp_new (extBlock.bytes, - extBlock.byteCount-XMP_MAGIC_TRAILER_LENGTH, - uri); - - g_free (extBlock.bytes); - } else -#endif - /* See Section 24. Comment Extension. in the GIF format definition */ - if (ExtCode == EXTENSION_RECORD_COMMENT_BLOCK_CODE && - ExtData && *ExtData) { - guint block_count = 0; - - /* Merge all blocks */ - do { - block_count++; - - g_debug ("Comment Extension block found (#%u, %u bytes)", - block_count, - ExtData[0]); - if (ext_block_append (&extBlock, ExtData[0], (char *) &(ExtData[1])) != GIF_OK) { - g_warning ("Problem with Comment extension data"); - return NULL; - } - } while (((status = DGifGetExtensionNext(gifFile, &ExtData)) == GIF_OK) && - ExtData != NULL); - - /* Add last NUL byte */ - g_debug ("Comment Extension blocks found (%u) with %u bytes", - block_count, - extBlock.byteCount); - extBlock.bytes = g_realloc (extBlock.bytes, extBlock.byteCount + 1); - extBlock.bytes[extBlock.byteCount] = '\0'; - - /* Set commentt */ - gd.comment = extBlock.bytes; - } else { - do { - status = DGifGetExtensionNext(gifFile, &ExtData); - } while ( status == GIF_OK && ExtData != NULL); - } - break; - case TERMINATE_RECORD_TYPE: - break; - default: - break; - } - } while (RecordType != TERMINATE_RECORD_TYPE); - - - if (!xd) { - xd = g_new0 (TrackerXmpData, 1); - } - - md.title = tracker_coalesce_strip (3, xd->title, xd->title2, xd->pdf_title); - md.date = tracker_coalesce_strip (2, xd->date, xd->time_original); - md.artist = tracker_coalesce_strip (2, xd->artist, xd->contributor); - - metadata = tracker_resource_new (NULL); - tracker_resource_add_uri (metadata, "rdf:type", "nfo:Image"); - tracker_resource_add_uri (metadata, "rdf:type", "nmm:Photo"); - - if (xd->license) { - tracker_resource_set_string (metadata, "nie:license", xd->license); - } - - if (xd->creator) { - TrackerResource *creator = tracker_extract_new_contact (xd->creator); - - tracker_resource_set_relation (metadata, "nco:creator", creator); - - g_object_unref (creator); - } - - tracker_guarantee_resource_date_from_file_mtime (metadata, - "nie:contentCreated", - md.date, - uri); - - if (xd->description) { - tracker_resource_set_string (metadata, "nie:description", xd->description); - } - - if (xd->copyright) { - tracker_resource_set_string (metadata, "nie:copyright", xd->copyright); - } - - if (xd->make || xd->model) { - TrackerResource *equipment = tracker_extract_new_equipment (xd->make, xd->model); - - tracker_resource_set_relation (metadata, "nfo:equipment", equipment); - - g_object_unref (equipment); - } - - tracker_guarantee_resource_title_from_file (metadata, - "nie:title", - md.title, - uri, - NULL); - - if (md.artist) { - TrackerResource *artist = tracker_extract_new_contact (xd->creator); - - tracker_resource_add_relation (metadata, "nco:contributor", artist); - - g_object_unref (artist); - } - - if (xd->orientation) { - TrackerResource *orientation; - - orientation = tracker_resource_new (xd->orientation); - tracker_resource_set_relation (metadata, "nfo:orientation", orientation); - g_object_unref (orientation); - } - - if (xd->exposure_time) { - tracker_resource_set_string (metadata, "nmm:exposureTime", xd->exposure_time); - } - - if (xd->iso_speed_ratings) { - tracker_resource_set_string (metadata, "nmm:isoSpeed", xd->iso_speed_ratings); - } - - if (xd->white_balance) { - TrackerResource *white_balance; - - white_balance = tracker_resource_new (xd->white_balance); - tracker_resource_set_relation (metadata, "nmm:meteringMode", white_balance); - g_object_unref (white_balance); - } - - if (xd->fnumber) { - tracker_resource_set_string (metadata, "nmm:fnumber", xd->fnumber); - } - - if (xd->flash) { - TrackerResource *flash; - - flash = tracker_resource_new (xd->flash); - tracker_resource_set_relation (metadata, "nmm:flash", flash); - g_object_unref (flash); - } - - if (xd->focal_length) { - tracker_resource_set_string (metadata, "nmm:focalLength", xd->focal_length); - } - - if (xd->metering_mode) { - TrackerResource *metering; - - metering = tracker_resource_new (xd->metering_mode); - tracker_resource_set_relation (metadata, "nmm:meteringMode", metering); - g_object_unref (metering); - } - - keywords = g_ptr_array_new_with_free_func ((GDestroyNotify) g_free); - - if (xd->keywords) { - tracker_keywords_parse (keywords, xd->keywords); - } - - if (xd->pdf_keywords) { - tracker_keywords_parse (keywords, xd->pdf_keywords); - } - - if (xd->rating) { - tracker_resource_set_string (metadata, "nao:numericRating", xd->rating); - } - - if (xd->subject) { - tracker_keywords_parse (keywords, xd->subject); - } - - if (xd->regions) { - tracker_xmp_apply_regions_to_resource (metadata, xd); - } - - for (i = 0; i < keywords->len; i++) { - TrackerResource *tag; - const gchar *p; - - p = g_ptr_array_index (keywords, i); - tag = tracker_extract_new_tag (p); - - tracker_resource_set_relation (metadata, "nao:hasTag", tag); - - g_object_unref (tag); - } - g_ptr_array_free (keywords, TRUE); - - if (xd->publisher) { - TrackerResource *publisher = tracker_extract_new_contact (xd->creator); - - tracker_resource_add_relation (metadata, "nco:creator", publisher); - - g_object_unref (publisher); - } - - if (xd->type) { - tracker_resource_set_string (metadata, "dc:type", xd->type); - } - - if (xd->format) { - tracker_resource_set_string (metadata, "dc:format", xd->format); - } - - if (xd->identifier) { - tracker_resource_set_string (metadata, "dc:identifier", xd->identifier); - } - - if (xd->source) { - tracker_resource_set_string (metadata, "dc:source", xd->source); - } - - if (xd->language) { - tracker_resource_set_string (metadata, "dc:language", xd->language); - } - - if (xd->relation) { - tracker_resource_set_string (metadata, "dc:relation", xd->relation); - } - - if (xd->coverage) { - tracker_resource_set_string (metadata, "dc:coverage", xd->coverage); - } - - if (xd->address || xd->state || xd->country || xd->city || - xd->gps_altitude || xd->gps_latitude || xd-> gps_longitude) { - - TrackerResource *location = tracker_extract_new_location (xd->address, - xd->state, xd->city, xd->country, xd->gps_altitude, - xd->gps_latitude, xd->gps_longitude); - - tracker_resource_set_relation (metadata, "slo:location", location); - - g_object_unref (location); - } - - if (xd->gps_direction) { - tracker_resource_set_string (metadata, "nfo:heading", xd->gps_direction); - } - - if (gd.width) { - tracker_resource_set_string (metadata, "nfo:width", gd.width); - g_free (gd.width); - } - - if (gd.height) { - tracker_resource_set_string (metadata, "nfo:height", gd.height); - g_free (gd.height); - } - - if (gd.comment) { - tracker_guarantee_resource_utf8_string (metadata, "nie:comment", gd.comment); - g_free (gd.comment); - } - - tracker_xmp_free (xd); - - return metadata; -} - - -G_MODULE_EXPORT gboolean -tracker_extract_get_metadata (TrackerExtractInfo *info) -{ - TrackerResource *metadata; - goffset size; - GifFileType *gifFile = NULL; - gchar *filename, *uri; - GFile *file; - int fd; -#if GIFLIB_MAJOR >= 5 - int err; -#endif - - file = tracker_extract_info_get_file (info); - filename = g_file_get_path (file); - size = tracker_file_get_size (filename); - - if (size < 64) { - g_free (filename); - return FALSE; - } - - fd = tracker_file_open_fd (filename); - - if (fd == -1) { - g_warning ("Could not open GIF file '%s': %s\n", - filename, - g_strerror (errno)); - g_free (filename); - return FALSE; - } - -#if GIFLIB_MAJOR < 5 - if ((gifFile = DGifOpenFileHandle (fd)) == NULL) { - print_gif_error (); -#else /* GIFLIB_MAJOR < 5 */ - if ((gifFile = DGifOpenFileHandle (fd, &err)) == NULL) { - gif_error ("Could not open GIF file with handle", err); -#endif /* GIFLIB_MAJOR < 5 */ - g_free (filename); - close (fd); - return FALSE; - } - - g_free (filename); - - uri = g_file_get_uri (file); - - metadata = read_metadata (gifFile, uri); - - g_free (uri); - - if (DGifCloseFile (gifFile, NULL) != GIF_OK) { -#if GIFLIB_MAJOR < 5 - print_gif_error (); -#else /* GIFLIB_MAJOR < 5 */ - gif_error ("Could not close GIF file", gifFile->Error); -#endif /* GIFLIB_MAJOR < 5 */ - } - - if (metadata) { - tracker_extract_info_set_resource (info, metadata); - g_object_unref (metadata); - } - - close (fd); - - return TRUE; -} |