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-rw-r--r--src/tag.c523
1 files changed, 0 insertions, 523 deletions
diff --git a/src/tag.c b/src/tag.c
deleted file mode 100644
index c0faa7ab2..000000000
--- a/src/tag.c
+++ /dev/null
@@ -1,523 +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 "tag.h"
-#include "tag_internal.h"
-#include "tag_pool.h"
-#include "conf.h"
-#include "song.h"
-#include "mpd_error.h"
-
-#include <glib.h>
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-/**
- * Maximum number of items managed in the bulk list; if it is
- * exceeded, we switch back to "normal" reallocation.
- */
-#define BULK_MAX 64
-
-static struct {
-#ifndef NDEBUG
- bool busy;
-#endif
- struct tag_item *items[BULK_MAX];
-} bulk;
-
-const char *tag_item_names[TAG_NUM_OF_ITEM_TYPES] = {
- [TAG_ARTIST] = "Artist",
- [TAG_ARTIST_SORT] = "ArtistSort",
- [TAG_ALBUM] = "Album",
- [TAG_ALBUM_ARTIST] = "AlbumArtist",
- [TAG_ALBUM_ARTIST_SORT] = "AlbumArtistSort",
- [TAG_TITLE] = "Title",
- [TAG_TRACK] = "Track",
- [TAG_NAME] = "Name",
- [TAG_GENRE] = "Genre",
- [TAG_DATE] = "Date",
- [TAG_COMPOSER] = "Composer",
- [TAG_PERFORMER] = "Performer",
- [TAG_COMMENT] = "Comment",
- [TAG_DISC] = "Disc",
-
- /* MusicBrainz tags from http://musicbrainz.org/doc/MusicBrainzTag */
- [TAG_MUSICBRAINZ_ARTISTID] = "MUSICBRAINZ_ARTISTID",
- [TAG_MUSICBRAINZ_ALBUMID] = "MUSICBRAINZ_ALBUMID",
- [TAG_MUSICBRAINZ_ALBUMARTISTID] = "MUSICBRAINZ_ALBUMARTISTID",
- [TAG_MUSICBRAINZ_TRACKID] = "MUSICBRAINZ_TRACKID",
-};
-
-bool ignore_tag_items[TAG_NUM_OF_ITEM_TYPES];
-
-enum tag_type
-tag_name_parse(const char *name)
-{
- assert(name != NULL);
-
- for (unsigned i = 0; i < TAG_NUM_OF_ITEM_TYPES; ++i) {
- assert(tag_item_names[i] != NULL);
-
- if (strcmp(name, tag_item_names[i]) == 0)
- return (enum tag_type)i;
- }
-
- return TAG_NUM_OF_ITEM_TYPES;
-}
-
-enum tag_type
-tag_name_parse_i(const char *name)
-{
- assert(name != NULL);
-
- for (unsigned i = 0; i < TAG_NUM_OF_ITEM_TYPES; ++i) {
- assert(tag_item_names[i] != NULL);
-
- if (g_ascii_strcasecmp(name, tag_item_names[i]) == 0)
- return (enum tag_type)i;
- }
-
- return TAG_NUM_OF_ITEM_TYPES;
-}
-
-static size_t items_size(const struct tag *tag)
-{
- return tag->num_items * sizeof(struct tag_item *);
-}
-
-void tag_lib_init(void)
-{
- const char *value;
- int quit = 0;
- char *temp;
- char *s;
- char *c;
- enum tag_type type;
-
- /* parse the "metadata_to_use" config parameter below */
-
- /* ignore comments by default */
- ignore_tag_items[TAG_COMMENT] = true;
-
- value = config_get_string(CONF_METADATA_TO_USE, NULL);
- if (value == NULL)
- return;
-
- memset(ignore_tag_items, true, TAG_NUM_OF_ITEM_TYPES);
-
- if (0 == g_ascii_strcasecmp(value, "none"))
- return;
-
- temp = c = s = g_strdup(value);
- while (!quit) {
- if (*s == ',' || *s == '\0') {
- if (*s == '\0')
- quit = 1;
- *s = '\0';
-
- c = g_strstrip(c);
- if (*c == 0)
- continue;
-
- type = tag_name_parse_i(c);
- if (type == TAG_NUM_OF_ITEM_TYPES)
- MPD_ERROR("error parsing metadata item \"%s\"",
- c);
-
- ignore_tag_items[type] = false;
-
- s++;
- c = s;
- }
- s++;
- }
-
- g_free(temp);
-}
-
-struct tag *tag_new(void)
-{
- struct tag *ret = g_new(struct tag, 1);
- ret->items = NULL;
- ret->time = -1;
- ret->has_playlist = false;
- ret->num_items = 0;
- return ret;
-}
-
-static void tag_delete_item(struct tag *tag, unsigned idx)
-{
- assert(idx < tag->num_items);
- tag->num_items--;
-
- g_mutex_lock(tag_pool_lock);
- tag_pool_put_item(tag->items[idx]);
- g_mutex_unlock(tag_pool_lock);
-
- if (tag->num_items - idx > 0) {
- memmove(tag->items + idx, tag->items + idx + 1,
- (tag->num_items - idx) * sizeof(tag->items[0]));
- }
-
- if (tag->num_items > 0) {
- tag->items = g_realloc(tag->items, items_size(tag));
- } else {
- g_free(tag->items);
- tag->items = NULL;
- }
-}
-
-void tag_clear_items_by_type(struct tag *tag, enum tag_type type)
-{
- for (unsigned i = 0; i < tag->num_items; i++) {
- if (tag->items[i]->type == type) {
- tag_delete_item(tag, i);
- /* decrement since when just deleted this node */
- i--;
- }
- }
-}
-
-void tag_free(struct tag *tag)
-{
- int i;
-
- assert(tag != NULL);
-
- g_mutex_lock(tag_pool_lock);
- for (i = tag->num_items; --i >= 0; )
- tag_pool_put_item(tag->items[i]);
- g_mutex_unlock(tag_pool_lock);
-
- if (tag->items == bulk.items) {
-#ifndef NDEBUG
- assert(bulk.busy);
- bulk.busy = false;
-#endif
- } else
- g_free(tag->items);
-
- g_free(tag);
-}
-
-struct tag *tag_dup(const struct tag *tag)
-{
- struct tag *ret;
-
- if (!tag)
- return NULL;
-
- ret = tag_new();
- ret->time = tag->time;
- ret->has_playlist = tag->has_playlist;
- ret->num_items = tag->num_items;
- ret->items = ret->num_items > 0 ? g_malloc(items_size(tag)) : NULL;
-
- g_mutex_lock(tag_pool_lock);
- for (unsigned i = 0; i < tag->num_items; i++)
- ret->items[i] = tag_pool_dup_item(tag->items[i]);
- g_mutex_unlock(tag_pool_lock);
-
- return ret;
-}
-
-struct tag *
-tag_merge(const struct tag *base, const struct tag *add)
-{
- struct tag *ret;
- unsigned n;
-
- assert(base != NULL);
- assert(add != NULL);
-
- /* allocate new tag object */
-
- ret = tag_new();
- ret->time = add->time > 0 ? add->time : base->time;
- ret->num_items = base->num_items + add->num_items;
- ret->items = ret->num_items > 0 ? g_malloc(items_size(ret)) : NULL;
-
- g_mutex_lock(tag_pool_lock);
-
- /* copy all items from "add" */
-
- for (unsigned i = 0; i < add->num_items; ++i)
- ret->items[i] = tag_pool_dup_item(add->items[i]);
-
- n = add->num_items;
-
- /* copy additional items from "base" */
-
- for (unsigned i = 0; i < base->num_items; ++i)
- if (!tag_has_type(add, base->items[i]->type))
- ret->items[n++] = tag_pool_dup_item(base->items[i]);
-
- g_mutex_unlock(tag_pool_lock);
-
- assert(n <= ret->num_items);
-
- if (n < ret->num_items) {
- /* some tags were not copied - shrink ret->items */
- assert(n > 0);
-
- ret->num_items = n;
- ret->items = g_realloc(ret->items, items_size(ret));
- }
-
- return ret;
-}
-
-struct tag *
-tag_merge_replace(struct tag *base, struct tag *add)
-{
- if (add == NULL)
- return base;
-
- if (base == NULL)
- return add;
-
- struct tag *tag = tag_merge(base, add);
- tag_free(base);
- tag_free(add);
-
- return tag;
-}
-
-const char *
-tag_get_value(const struct tag *tag, enum tag_type type)
-{
- assert(tag != NULL);
- assert(type < TAG_NUM_OF_ITEM_TYPES);
-
- for (unsigned i = 0; i < tag->num_items; i++)
- if (tag->items[i]->type == type)
- return tag->items[i]->value;
-
- return NULL;
-}
-
-bool tag_has_type(const struct tag *tag, enum tag_type type)
-{
- return tag_get_value(tag, type) != NULL;
-}
-
-bool tag_equal(const struct tag *tag1, const struct tag *tag2)
-{
- if (tag1 == NULL && tag2 == NULL)
- return true;
- else if (!tag1 || !tag2)
- return false;
-
- if (tag1->time != tag2->time)
- return false;
-
- if (tag1->num_items != tag2->num_items)
- return false;
-
- for (unsigned i = 0; i < tag1->num_items; i++) {
- if (tag1->items[i]->type != tag2->items[i]->type)
- return false;
- if (strcmp(tag1->items[i]->value, tag2->items[i]->value)) {
- return false;
- }
- }
-
- return true;
-}
-
-/**
- * Replace invalid sequences with the question mark.
- */
-static char *
-patch_utf8(const char *src, size_t length, const gchar *end)
-{
- /* duplicate the string, and replace invalid bytes in that
- buffer */
- char *dest = g_strdup(src);
-
- do {
- dest[end - src] = '?';
- } while (!g_utf8_validate(end + 1, (src + length) - (end + 1), &end));
-
- return dest;
-}
-
-static char *
-fix_utf8(const char *str, size_t length)
-{
- const gchar *end;
- char *temp;
- gsize written;
-
- assert(str != NULL);
-
- /* check if the string is already valid UTF-8 */
- if (g_utf8_validate(str, length, &end))
- return NULL;
-
- /* no, it's not - try to import it from ISO-Latin-1 */
- temp = g_convert(str, length, "utf-8", "iso-8859-1",
- NULL, &written, NULL);
- if (temp != NULL)
- /* success! */
- return temp;
-
- /* no, still broken - there's no medication, just patch
- invalid sequences */
- return patch_utf8(str, length, end);
-}
-
-void tag_begin_add(struct tag *tag)
-{
- assert(!bulk.busy);
- assert(tag != NULL);
- assert(tag->items == NULL);
- assert(tag->num_items == 0);
-
-#ifndef NDEBUG
- bulk.busy = true;
-#endif
- tag->items = bulk.items;
-}
-
-void tag_end_add(struct tag *tag)
-{
- if (tag->items == bulk.items) {
- assert(tag->num_items <= BULK_MAX);
-
- if (tag->num_items > 0) {
- /* copy the tag items from the bulk list over
- to a new list (which fits exactly) */
- tag->items = g_malloc(items_size(tag));
- memcpy(tag->items, bulk.items, items_size(tag));
- } else
- tag->items = NULL;
- }
-
-#ifndef NDEBUG
- bulk.busy = false;
-#endif
-}
-
-static bool
-char_is_non_printable(unsigned char ch)
-{
- return ch < 0x20;
-}
-
-static const char *
-find_non_printable(const char *p, size_t length)
-{
- for (size_t i = 0; i < length; ++i)
- if (char_is_non_printable(p[i]))
- return p + i;
-
- return NULL;
-}
-
-/**
- * Clears all non-printable characters, convert them to space.
- * Returns NULL if nothing needs to be cleared.
- */
-static char *
-clear_non_printable(const char *p, size_t length)
-{
- const char *first = find_non_printable(p, length);
- char *dest;
-
- if (first == NULL)
- return NULL;
-
- dest = g_strndup(p, length);
-
- for (size_t i = first - p; i < length; ++i)
- if (char_is_non_printable(dest[i]))
- dest[i] = ' ';
-
- return dest;
-}
-
-static char *
-fix_tag_value(const char *p, size_t length)
-{
- char *utf8, *cleared;
-
- utf8 = fix_utf8(p, length);
- if (utf8 != NULL) {
- p = utf8;
- length = strlen(p);
- }
-
- cleared = clear_non_printable(p, length);
- if (cleared == NULL)
- cleared = utf8;
- else
- g_free(utf8);
-
- return cleared;
-}
-
-static void
-tag_add_item_internal(struct tag *tag, enum tag_type type,
- const char *value, size_t len)
-{
- unsigned int i = tag->num_items;
- char *p;
-
- p = fix_tag_value(value, len);
- if (p != NULL) {
- value = p;
- len = strlen(value);
- }
-
- tag->num_items++;
-
- if (tag->items != bulk.items)
- /* bulk mode disabled */
- tag->items = g_realloc(tag->items, items_size(tag));
- else if (tag->num_items >= BULK_MAX) {
- /* bulk list already full - switch back to non-bulk */
- assert(bulk.busy);
-
- tag->items = g_malloc(items_size(tag));
- memcpy(tag->items, bulk.items,
- items_size(tag) - sizeof(struct tag_item *));
- }
-
- g_mutex_lock(tag_pool_lock);
- tag->items[i] = tag_pool_get_item(type, value, len);
- g_mutex_unlock(tag_pool_lock);
-
- g_free(p);
-}
-
-void tag_add_item_n(struct tag *tag, enum tag_type type,
- const char *value, size_t len)
-{
- if (ignore_tag_items[type])
- {
- return;
- }
- if (!value || !len)
- return;
-
- tag_add_item_internal(tag, type, value, len);
-}