/* metaflac - Command-line FLAC metadata editor
- * Copyright (C) 2001,2002,2003,2004,2005,2006 Josh Coalson
+ * Copyright (C) 2001,2002,2003,2004,2005,2006,2007,2008,2009 Josh Coalson
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
#endif
#include <errno.h>
-#include <stdio.h> /* for snprintf() */
#include <string.h>
#include "options.h"
#include "utils.h"
#include "FLAC/assert.h"
-#include "share/grabbag.h" /* for grabbag__picture_parse_specification */
+#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__metadata_iterator_init(iterator, chain);
switch(operation->type) {
- case OP__IMPORT_PICTURE:
+ case OP__IMPORT_PICTURE_FROM:
ok = import_pic_from(filename, &picture, operation->argument.specification.value, needs_write);
if(ok) {
/* append PICTURE block */
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;
break;
};
- /* 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));
-
-
FLAC__metadata_iterator_delete(iterator);
return ok;
}
*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);
+ if(f != stdout)
+ fclose(f);
+ return false;
+ }
+
+ if(f != stdout)
+ fclose(f);
+
+ return true;
+}
projects / platform / upstream / flac.git / blobdiff