diff options
Diffstat (limited to 'src/icy_metadata.c')
| -rw-r--r-- | src/icy_metadata.c | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/src/icy_metadata.c b/src/icy_metadata.c deleted file mode 100644 index 32953e69f..000000000 --- a/src/icy_metadata.c +++ /dev/null @@ -1,182 +0,0 @@ -/* - * Copyright (C) 2003-2011 The Music Player Daemon Project - * http://www.musicpd.org - * - * 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., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include "config.h" -#include "icy_metadata.h" -#include "tag.h" - -#include <glib.h> - -#include <assert.h> -#include <string.h> - -#undef G_LOG_DOMAIN -#define G_LOG_DOMAIN "icy_metadata" - -void -icy_deinit(struct icy_metadata *im) -{ - if (!icy_defined(im)) - return; - - if (im->data_rest == 0 && im->meta_size > 0) - g_free(im->meta_data); - - if (im->tag != NULL) - tag_free(im->tag); -} - -void -icy_reset(struct icy_metadata *im) -{ - if (!icy_defined(im)) - return; - - icy_deinit(im); - - im->data_rest = im->data_size; - im->meta_size = 0; -} - -size_t -icy_data(struct icy_metadata *im, size_t length) -{ - assert(length > 0); - - if (!icy_defined(im)) - return length; - - if (im->data_rest == 0) - return 0; - - if (length >= im->data_rest) { - length = im->data_rest; - im->data_rest = 0; - } else - im->data_rest -= length; - - return length; -} - -static void -icy_add_item(struct tag *tag, enum tag_type type, const char *value) -{ - size_t length = strlen(value); - - if (length >= 2 && value[0] == '\'' && value[length - 1] == '\'') { - /* strip the single quotes */ - ++value; - length -= 2; - } - - if (length > 0) - tag_add_item_n(tag, type, value, length); -} - -static void -icy_parse_tag_item(struct tag *tag, const char *item) -{ - gchar **p = g_strsplit(item, "=", 0); - - if (p[0] != NULL && p[1] != NULL) { - if (strcmp(p[0], "StreamTitle") == 0) - icy_add_item(tag, TAG_TITLE, p[1]); - else - g_debug("unknown icy-tag: '%s'", p[0]); - } - - g_strfreev(p); -} - -static struct tag * -icy_parse_tag(const char *p) -{ - struct tag *tag = tag_new(); - gchar **items = g_strsplit(p, ";", 0); - - for (unsigned i = 0; items[i] != NULL; ++i) - icy_parse_tag_item(tag, items[i]); - - g_strfreev(items); - - return tag; -} - -size_t -icy_meta(struct icy_metadata *im, const void *data, size_t length) -{ - const unsigned char *p = data; - - assert(icy_defined(im)); - assert(im->data_rest == 0); - assert(length > 0); - - if (im->meta_size == 0) { - /* read meta_size from the first byte of a meta - block */ - im->meta_size = *p++ * 16; - if (im->meta_size == 0) { - /* special case: no metadata */ - im->data_rest = im->data_size; - return 1; - } - - /* 1 byte was consumed (must be re-added later for the - return value */ - --length; - - /* initialize metadata reader, allocate enough - memory (+1 for the null terminator) */ - im->meta_position = 0; - im->meta_data = g_malloc(im->meta_size + 1); - } - - assert(im->meta_position < im->meta_size); - - if (length > im->meta_size - im->meta_position) - length = im->meta_size - im->meta_position; - - memcpy(im->meta_data + im->meta_position, p, length); - im->meta_position += length; - - if (p != data) - /* re-add the first byte (which contained meta_size) */ - ++length; - - if (im->meta_position == im->meta_size) { - /* null-terminate the string */ - - im->meta_data[im->meta_size] = 0; - - /* parse */ - - if (im->tag != NULL) - tag_free(im->tag); - - im->tag = icy_parse_tag(im->meta_data); - g_free(im->meta_data); - - /* change back to normal data mode */ - - im->meta_size = 0; - im->data_rest = im->data_size; - } - - return length; -} |