initial import

diff --git a/src/plugin_common/vorbiscomment.c b/src/plugin_common/vorbiscomment.c
new file mode 100644 (file)
index 0000000..98ea4a0
--- /dev/null
+++ b/src/plugin_common/vorbiscomment.c
@@ -0,0 +1,85 @@
+/* plugin_common - Routines common to several plugins
+ * Copyright (C) 2002  Josh Coalson
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#include <string.h>
+#include <stdlib.h>
+
+#include "vorbiscomment.h"
+#include "FLAC/metadata.h"
+
+static int local__vcentry_matches(const char *field_name, const FLAC__StreamMetadata_VorbisComment_Entry *entry)
+{
+       const FLAC__byte *eq = memchr(entry->entry, '=', entry->length);
+       const unsigned field_name_length = strlen(field_name);
+       return (0 != eq && (unsigned)(eq-entry->entry) == field_name_length && 0 == strncasecmp(field_name, entry->entry, field_name_length));
+}
+
+static void local__vcentry_parse_value(const FLAC__StreamMetadata_VorbisComment_Entry *entry, char **dest)
+{
+       const FLAC__byte *eq = memchr(entry->entry, '=', entry->length);
+
+       if(0 == eq)
+               return;
+       else {
+               const unsigned value_length = entry->length - (unsigned)((++eq) - entry->entry);
+
+               *dest = malloc(value_length + 1);
+               if(0 != *dest) {
+                       memcpy(*dest, eq, value_length);
+                       (*dest)[value_length] = '\0';
+               }
+       }
+}
+
+void FLAC_plugin__vorbiscomment_get(const char *filename, FLAC_Plugin__CanonicalTag *tag)
+{
+       FLAC__Metadata_SimpleIterator *iterator = FLAC__metadata_simple_iterator_new();
+       if(0 != iterator) {
+               if(FLAC__metadata_simple_iterator_init(iterator, filename, /*read_only=*/true, /*preserve_file_stats=*/true)) {
+                       FLAC__bool got_vorbis_comments = false;
+                       do {
+                               if(FLAC__metadata_simple_iterator_get_block_type(iterator) == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
+                                       FLAC__StreamMetadata *block = FLAC__metadata_simple_iterator_get_block(iterator);
+                                       if(0 != block) {
+                                               unsigned i;
+                                               const FLAC__StreamMetadata_VorbisComment *vc = &block->data.vorbis_comment;
+                                               for(i = 0; i < vc->num_comments; i++) {
+                                                       if(local__vcentry_matches("artist", &vc->comments[i]))
+                                                               local__vcentry_parse_value(&vc->comments[i], &tag->composer);
+                                                       else if(local__vcentry_matches("performer", &vc->comments[i]))
+                                                               local__vcentry_parse_value(&vc->comments[i], &tag->performer);
+                                                       else if(local__vcentry_matches("album", &vc->comments[i]))
+                                                               local__vcentry_parse_value(&vc->comments[i], &tag->album);
+                                                       else if(local__vcentry_matches("title", &vc->comments[i]))
+                                                               local__vcentry_parse_value(&vc->comments[i], &tag->title);
+                                                       else if(local__vcentry_matches("tracknumber", &vc->comments[i]))
+                                                               local__vcentry_parse_value(&vc->comments[i], &tag->track_number);
+                                                       else if(local__vcentry_matches("genre", &vc->comments[i]))
+                                                               local__vcentry_parse_value(&vc->comments[i], &tag->genre);
+                                                       else if(local__vcentry_matches("description", &vc->comments[i]))
+                                                               local__vcentry_parse_value(&vc->comments[i], &tag->comment);
+                                               }
+                                               FLAC__metadata_object_delete(block);
+                                               got_vorbis_comments = true;
+                                       }
+                               }
+                       } while (!got_vorbis_comments && FLAC__metadata_simple_iterator_next(iterator));
+               }
+               FLAC__metadata_simple_iterator_delete(iterator);
+       }
+}

diff --git a/src/plugin_common/vorbiscomment.h b/src/plugin_common/vorbiscomment.h
new file mode 100644 (file)
index 0000000..e6ee09a
--- /dev/null
+++ b/src/plugin_common/vorbiscomment.h
@@ -0,0 +1,26 @@
+/* plugin_common - Routines common to several plugins
+ * Copyright (C) 2002  Josh Coalson
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#ifndef FLAC__PLUGIN_COMMON__VORBISCOMMENT_H
+#define FLAC__PLUGIN_COMMON__VORBISCOMMENT_H
+
+#include "canonical_tag.h"
+
+void FLAC_plugin__vorbiscomment_get(const char *filename, FLAC_Plugin__CanonicalTag *tag);
+
+#endif