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Diffstat (limited to '3rdparty/libflac/src/metaflac/operations_shorthand_picture.c')
-rw-r--r--3rdparty/libflac/src/metaflac/operations_shorthand_picture.c173
1 files changed, 173 insertions, 0 deletions
diff --git a/3rdparty/libflac/src/metaflac/operations_shorthand_picture.c b/3rdparty/libflac/src/metaflac/operations_shorthand_picture.c
new file mode 100644
index 00000000000..9045aaeb6cf
--- /dev/null
+++ b/3rdparty/libflac/src/metaflac/operations_shorthand_picture.c
@@ -0,0 +1,173 @@
+/* metaflac - Command-line FLAC metadata editor
+ * Copyright (C) 2001,2002,2003,2004,2005,2006,2007 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.
+ */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <errno.h>
+#include <string.h>
+#include "options.h"
+#include "utils.h"
+#include "FLAC/assert.h"
+#include "share/grabbag.h" /* for grabbag__picture_parse_specification() etc */
+
+#include "operations_shorthand.h"
+
+static FLAC__bool import_pic_from(const char *filename, FLAC__StreamMetadata **picture, const char *specification, FLAC__bool *needs_write);
+static FLAC__bool export_pic_to(const char *filename, const FLAC__StreamMetadata *picture, const char *pic_filename);
+
+FLAC__bool do_shorthand_operation__picture(const char *filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write)
+{
+ FLAC__bool ok = true, has_type1 = false, has_type2 = false;
+ FLAC__StreamMetadata *picture = 0;
+ FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
+
+ if(0 == iterator)
+ die("out of memory allocating iterator");
+
+ FLAC__metadata_iterator_init(iterator, chain);
+
+ switch(operation->type) {
+ case OP__IMPORT_PICTURE_FROM:
+ ok = import_pic_from(filename, &picture, operation->argument.specification.value, needs_write);
+ if(ok) {
+ /* append PICTURE block */
+ while(FLAC__metadata_iterator_next(iterator))
+ ;
+ if(!FLAC__metadata_iterator_insert_block_after(iterator, picture)) {
+ print_error_with_chain_status(chain, "%s: ERROR: adding new PICTURE block to metadata", filename);
+ FLAC__metadata_object_delete(picture);
+ ok = false;
+ }
+ }
+ if(ok) {
+ /* check global PICTURE constraints (max 1 block each of type=1 and type=2) */
+ while(FLAC__metadata_iterator_prev(iterator))
+ ;
+ do {
+ FLAC__StreamMetadata *block = FLAC__metadata_iterator_get_block(iterator);
+ if(block->type == FLAC__METADATA_TYPE_PICTURE) {
+ if(block->data.picture.type == FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON_STANDARD) {
+ if(has_type1) {
+ print_error_with_chain_status(chain, "%s: ERROR: FLAC stream can only have one 32x32 standard icon (type=1) PICTURE block", filename);
+ ok = false;
+ }
+ has_type1 = true;
+ }
+ else if(block->data.picture.type == FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON) {
+ if(has_type2) {
+ print_error_with_chain_status(chain, "%s: ERROR: FLAC stream can only have one icon (type=2) PICTURE block", filename);
+ ok = false;
+ }
+ has_type2 = true;
+ }
+ }
+ } while(FLAC__metadata_iterator_next(iterator));
+ }
+ break;
+ case OP__EXPORT_PICTURE_TO:
+ {
+ const Argument_BlockNumber *a = operation->argument.export_picture_to.block_number_link;
+ int block_number = (a && a->num_entries > 0)? (int)a->entries[0] : -1;
+ unsigned i = 0;
+ do {
+ FLAC__StreamMetadata *block = FLAC__metadata_iterator_get_block(iterator);
+ if(block->type == FLAC__METADATA_TYPE_PICTURE && (block_number < 0 || i == (unsigned)block_number))
+ picture = block;
+ i++;
+ } while(FLAC__metadata_iterator_next(iterator) && 0 == picture);
+ if(0 == picture) {
+ if(block_number < 0)
+ fprintf(stderr, "%s: ERROR: FLAC file has no PICTURE block\n", filename);
+ else
+ fprintf(stderr, "%s: ERROR: FLAC file has no PICTURE block at block #%d\n", filename, block_number);
+ ok = false;
+ }
+ else
+ ok = export_pic_to(filename, picture, operation->argument.filename.value);
+ }
+ break;
+ default:
+ ok = false;
+ FLAC__ASSERT(0);
+ break;
+ };
+
+ FLAC__metadata_iterator_delete(iterator);
+ return ok;
+}
+
+/*
+ * local routines
+ */
+
+FLAC__bool import_pic_from(const char *filename, FLAC__StreamMetadata **picture, const char *specification, FLAC__bool *needs_write)
+{
+ const char *error_message;
+
+ if(0 == specification || strlen(specification) == 0) {
+ fprintf(stderr, "%s: ERROR: empty picture specification\n", filename);
+ return false;
+ }
+
+ *picture = grabbag__picture_parse_specification(specification, &error_message);
+
+ if(0 == *picture) {
+ fprintf(stderr, "%s: ERROR: while parsing picture specification \"%s\": %s\n", filename, specification, error_message);
+ return false;
+ }
+
+ if(!FLAC__format_picture_is_legal(&(*picture)->data.picture, &error_message)) {
+ fprintf(stderr, "%s: ERROR: new PICTURE block for \"%s\" is illegal: %s\n", filename, specification, error_message);
+ return false;
+ }
+
+ *needs_write = true;
+ return true;
+}
+
+FLAC__bool export_pic_to(const char *filename, const FLAC__StreamMetadata *picture, const char *pic_filename)
+{
+ FILE *f;
+ const FLAC__uint32 len = picture->data.picture.data_length;
+
+ if(0 == pic_filename || strlen(pic_filename) == 0) {
+ fprintf(stderr, "%s: ERROR: empty export file name\n", filename);
+ return false;
+ }
+ if(0 == strcmp(pic_filename, "-"))
+ f = grabbag__file_get_binary_stdout();
+ else
+ f = fopen(pic_filename, "wb");
+
+ if(0 == f) {
+ fprintf(stderr, "%s: ERROR: can't open export file %s: %s\n", filename, pic_filename, strerror(errno));
+ return false;
+ }
+
+ if(fwrite(picture->data.picture.data, 1, len, f) != len) {
+ fprintf(stderr, "%s: ERROR: writing PICTURE data to file\n", filename);
+ return false;
+ }
+
+ if(f != stdout)
+ fclose(f);
+
+ return true;
+}