summaryrefslogtreecommitdiffstatshomepage
path: root/3rdparty/libflac/src/metaflac/operations_shorthand_vorbiscomment.c
diff options
context:
space:
mode:
Diffstat (limited to '3rdparty/libflac/src/metaflac/operations_shorthand_vorbiscomment.c')
-rw-r--r--3rdparty/libflac/src/metaflac/operations_shorthand_vorbiscomment.c368
1 files changed, 368 insertions, 0 deletions
diff --git a/3rdparty/libflac/src/metaflac/operations_shorthand_vorbiscomment.c b/3rdparty/libflac/src/metaflac/operations_shorthand_vorbiscomment.c
new file mode 100644
index 00000000000..ba00859b502
--- /dev/null
+++ b/3rdparty/libflac/src/metaflac/operations_shorthand_vorbiscomment.c
@@ -0,0 +1,368 @@
+/* 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 "options.h"
+#include "utils.h"
+#include "FLAC/assert.h"
+#include "share/grabbag.h" /* for grabbag__file_get_filesize() */
+#include "share/utf8.h"
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include "operations_shorthand.h"
+
+static FLAC__bool remove_vc_all(const char *filename, FLAC__StreamMetadata *block, FLAC__bool *needs_write);
+static FLAC__bool remove_vc_field(const char *filename, FLAC__StreamMetadata *block, const char *field_name, FLAC__bool *needs_write);
+static FLAC__bool remove_vc_firstfield(const char *filename, FLAC__StreamMetadata *block, const char *field_name, FLAC__bool *needs_write);
+static FLAC__bool set_vc_field(const char *filename, FLAC__StreamMetadata *block, const Argument_VcField *field, FLAC__bool *needs_write, FLAC__bool raw);
+static FLAC__bool import_vc_from(const char *filename, FLAC__StreamMetadata *block, const Argument_String *vc_filename, FLAC__bool *needs_write, FLAC__bool raw);
+static FLAC__bool export_vc_to(const char *filename, FLAC__StreamMetadata *block, const Argument_String *vc_filename, FLAC__bool raw);
+
+FLAC__bool do_shorthand_operation__vorbis_comment(const char *filename, FLAC__bool prefix_with_filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write, FLAC__bool raw)
+{
+ FLAC__bool ok = true, found_vc_block = false;
+ FLAC__StreamMetadata *block = 0;
+ FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
+
+ if(0 == iterator)
+ die("out of memory allocating iterator");
+
+ FLAC__metadata_iterator_init(iterator, chain);
+
+ do {
+ block = FLAC__metadata_iterator_get_block(iterator);
+ if(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT)
+ found_vc_block = true;
+ } while(!found_vc_block && FLAC__metadata_iterator_next(iterator));
+
+ if(!found_vc_block) {
+ /* create a new block if necessary */
+ if(operation->type == OP__SET_VC_FIELD || operation->type == OP__IMPORT_VC_FROM) {
+ block = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT);
+ if(0 == block)
+ die("out of memory allocating VORBIS_COMMENT block");
+ while(FLAC__metadata_iterator_next(iterator))
+ ;
+ if(!FLAC__metadata_iterator_insert_block_after(iterator, block)) {
+ print_error_with_chain_status(chain, "%s: ERROR: adding new VORBIS_COMMENT block to metadata", filename);
+ return false;
+ }
+ /* iterator is left pointing to new block */
+ FLAC__ASSERT(FLAC__metadata_iterator_get_block(iterator) == block);
+ }
+ else {
+ FLAC__metadata_iterator_delete(iterator);
+ return ok;
+ }
+ }
+
+ FLAC__ASSERT(0 != block);
+ FLAC__ASSERT(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
+
+ switch(operation->type) {
+ case OP__SHOW_VC_VENDOR:
+ write_vc_field(prefix_with_filename? filename : 0, &block->data.vorbis_comment.vendor_string, raw, stdout);
+ break;
+ case OP__SHOW_VC_FIELD:
+ write_vc_fields(prefix_with_filename? filename : 0, operation->argument.vc_field_name.value, block->data.vorbis_comment.comments, block->data.vorbis_comment.num_comments, raw, stdout);
+ break;
+ case OP__REMOVE_VC_ALL:
+ ok = remove_vc_all(filename, block, needs_write);
+ break;
+ case OP__REMOVE_VC_FIELD:
+ ok = remove_vc_field(filename, block, operation->argument.vc_field_name.value, needs_write);
+ break;
+ case OP__REMOVE_VC_FIRSTFIELD:
+ ok = remove_vc_firstfield(filename, block, operation->argument.vc_field_name.value, needs_write);
+ break;
+ case OP__SET_VC_FIELD:
+ ok = set_vc_field(filename, block, &operation->argument.vc_field, needs_write, raw);
+ break;
+ case OP__IMPORT_VC_FROM:
+ ok = import_vc_from(filename, block, &operation->argument.filename, needs_write, raw);
+ break;
+ case OP__EXPORT_VC_TO:
+ ok = export_vc_to(filename, block, &operation->argument.filename, raw);
+ break;
+ default:
+ ok = false;
+ FLAC__ASSERT(0);
+ break;
+ };
+
+ FLAC__metadata_iterator_delete(iterator);
+ return ok;
+}
+
+/*
+ * local routines
+ */
+
+FLAC__bool remove_vc_all(const char *filename, FLAC__StreamMetadata *block, FLAC__bool *needs_write)
+{
+ FLAC__ASSERT(0 != block);
+ FLAC__ASSERT(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
+ FLAC__ASSERT(0 != needs_write);
+
+ if(0 != block->data.vorbis_comment.comments) {
+ FLAC__ASSERT(block->data.vorbis_comment.num_comments > 0);
+ if(!FLAC__metadata_object_vorbiscomment_resize_comments(block, 0)) {
+ fprintf(stderr, "%s: ERROR: memory allocation failure\n", filename);
+ return false;
+ }
+ *needs_write = true;
+ }
+ else {
+ FLAC__ASSERT(block->data.vorbis_comment.num_comments == 0);
+ }
+
+ return true;
+}
+
+FLAC__bool remove_vc_field(const char *filename, FLAC__StreamMetadata *block, const char *field_name, FLAC__bool *needs_write)
+{
+ int n;
+
+ FLAC__ASSERT(0 != needs_write);
+
+ n = FLAC__metadata_object_vorbiscomment_remove_entries_matching(block, field_name);
+
+ if(n < 0) {
+ fprintf(stderr, "%s: ERROR: memory allocation failure\n", filename);
+ return false;
+ }
+ else if(n > 0)
+ *needs_write = true;
+
+ return true;
+}
+
+FLAC__bool remove_vc_firstfield(const char *filename, FLAC__StreamMetadata *block, const char *field_name, FLAC__bool *needs_write)
+{
+ int n;
+
+ FLAC__ASSERT(0 != needs_write);
+
+ n = FLAC__metadata_object_vorbiscomment_remove_entry_matching(block, field_name);
+
+ if(n < 0) {
+ fprintf(stderr, "%s: ERROR: memory allocation failure\n", filename);
+ return false;
+ }
+ else if(n > 0)
+ *needs_write = true;
+
+ return true;
+}
+
+FLAC__bool set_vc_field(const char *filename, FLAC__StreamMetadata *block, const Argument_VcField *field, FLAC__bool *needs_write, FLAC__bool raw)
+{
+ FLAC__StreamMetadata_VorbisComment_Entry entry;
+ char *converted;
+
+ FLAC__ASSERT(0 != block);
+ FLAC__ASSERT(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
+ FLAC__ASSERT(0 != field);
+ FLAC__ASSERT(0 != needs_write);
+
+ if(field->field_value_from_file) {
+ /* read the file into 'data' */
+ FILE *f = 0;
+ char *data = 0;
+ const off_t size = grabbag__file_get_filesize(field->field_value);
+ if(size < 0) {
+ fprintf(stderr, "%s: ERROR: can't open file '%s' for '%s' tag value\n", filename, field->field_value, field->field_name);
+ return false;
+ }
+ if(size >= 0x100000) { /* magic arbitrary limit, actual format limit is near 16MB */
+ fprintf(stderr, "%s: ERROR: file '%s' for '%s' tag value is too large\n", filename, field->field_value, field->field_name);
+ return false;
+ }
+ if(0 == (data = malloc(size+1)))
+ die("out of memory allocating tag value");
+ data[size] = '\0';
+ if(0 == (f = fopen(field->field_value, "rb")) || fread(data, 1, size, f) != (size_t)size) {
+ fprintf(stderr, "%s: ERROR: while reading file '%s' for '%s' tag value: %s\n", filename, field->field_value, field->field_name, strerror(errno));
+ free(data);
+ if(f)
+ fclose(f);
+ return false;
+ }
+ fclose(f);
+ if(strlen(data) != (size_t)size) {
+ free(data);
+ fprintf(stderr, "%s: ERROR: file '%s' for '%s' tag value has embedded NULs\n", filename, field->field_value, field->field_name);
+ return false;
+ }
+
+ /* move 'data' into 'converted', converting to UTF-8 if necessary */
+ if(raw) {
+ converted = data;
+ }
+ else if(utf8_encode(data, &converted) >= 0) {
+ free(data);
+ }
+ else {
+ free(data);
+ fprintf(stderr, "%s: ERROR: converting file '%s' contents to UTF-8 for tag value\n", filename, field->field_value);
+ return false;
+ }
+
+ /* create and entry and append it */
+ if(!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, field->field_name, converted)) {
+ free(converted);
+ fprintf(stderr, "%s: ERROR: file '%s' for '%s' tag value is not valid UTF-8\n", filename, field->field_value, field->field_name);
+ return false;
+ }
+ free(converted);
+ if(!FLAC__metadata_object_vorbiscomment_append_comment(block, entry, /*copy=*/false)) {
+ fprintf(stderr, "%s: ERROR: memory allocation failure\n", filename);
+ return false;
+ }
+
+ *needs_write = true;
+ return true;
+ }
+ else {
+ FLAC__bool needs_free = false;
+ if(raw) {
+ entry.entry = (FLAC__byte *)field->field;
+ }
+ else if(utf8_encode(field->field, &converted) >= 0) {
+ entry.entry = (FLAC__byte *)converted;
+ needs_free = true;
+ }
+ else {
+ fprintf(stderr, "%s: ERROR: converting comment '%s' to UTF-8\n", filename, field->field);
+ return false;
+ }
+ entry.length = strlen((const char *)entry.entry);
+ if(!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length)) {
+ if(needs_free)
+ free(converted);
+ /*
+ * our previous parsing has already established that the field
+ * name is OK, so it must be the field value
+ */
+ fprintf(stderr, "%s: ERROR: tag value for '%s' is not valid UTF-8\n", filename, field->field_name);
+ return false;
+ }
+
+ if(!FLAC__metadata_object_vorbiscomment_append_comment(block, entry, /*copy=*/true)) {
+ if(needs_free)
+ free(converted);
+ fprintf(stderr, "%s: ERROR: memory allocation failure\n", filename);
+ return false;
+ }
+
+ *needs_write = true;
+ if(needs_free)
+ free(converted);
+ return true;
+ }
+}
+
+FLAC__bool import_vc_from(const char *filename, FLAC__StreamMetadata *block, const Argument_String *vc_filename, FLAC__bool *needs_write, FLAC__bool raw)
+{
+ FILE *f;
+ char line[65536];
+ FLAC__bool ret;
+
+ if(0 == vc_filename->value || strlen(vc_filename->value) == 0) {
+ fprintf(stderr, "%s: ERROR: empty import file name\n", filename);
+ return false;
+ }
+ if(0 == strcmp(vc_filename->value, "-"))
+ f = stdin;
+ else
+ f = fopen(vc_filename->value, "r");
+
+ if(0 == f) {
+ fprintf(stderr, "%s: ERROR: can't open import file %s: %s\n", filename, vc_filename->value, strerror(errno));
+ return false;
+ }
+
+ ret = true;
+ while(ret && !feof(f)) {
+ fgets(line, sizeof(line), f);
+ if(!feof(f)) {
+ char *p = strchr(line, '\n');
+ if(0 == p) {
+ fprintf(stderr, "%s: ERROR: line too long, aborting\n", vc_filename->value);
+ ret = false;
+ }
+ else {
+ const char *violation;
+ Argument_VcField field;
+ *p = '\0';
+ memset(&field, 0, sizeof(Argument_VcField));
+ field.field_value_from_file = false;
+ if(!parse_vorbis_comment_field(line, &field.field, &field.field_name, &field.field_value, &field.field_value_length, &violation)) {
+ FLAC__ASSERT(0 != violation);
+ fprintf(stderr, "%s: ERROR: malformed vorbis comment field \"%s\",\n %s\n", vc_filename->value, line, violation);
+ ret = false;
+ }
+ else {
+ ret = set_vc_field(filename, block, &field, needs_write, raw);
+ }
+ if(0 != field.field)
+ free(field.field);
+ if(0 != field.field_name)
+ free(field.field_name);
+ if(0 != field.field_value)
+ free(field.field_value);
+ }
+ }
+ };
+
+ if(f != stdin)
+ fclose(f);
+ return ret;
+}
+
+FLAC__bool export_vc_to(const char *filename, FLAC__StreamMetadata *block, const Argument_String *vc_filename, FLAC__bool raw)
+{
+ FILE *f;
+ FLAC__bool ret;
+
+ if(0 == vc_filename->value || strlen(vc_filename->value) == 0) {
+ fprintf(stderr, "%s: ERROR: empty export file name\n", filename);
+ return false;
+ }
+ if(0 == strcmp(vc_filename->value, "-"))
+ f = stdout;
+ else
+ f = fopen(vc_filename->value, "w");
+
+ if(0 == f) {
+ fprintf(stderr, "%s: ERROR: can't open export file %s: %s\n", filename, vc_filename->value, strerror(errno));
+ return false;
+ }
+
+ ret = true;
+
+ write_vc_fields(0, 0, block->data.vorbis_comment.comments, block->data.vorbis_comment.num_comments, raw, f);
+
+ if(f != stdout)
+ fclose(f);
+ return ret;
+}