150 lines
3.5 KiB
C
150 lines
3.5 KiB
C
/*
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* Copyright (C) 2003-2010 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include "playlist_song.h"
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#include "database.h"
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#include "mapper.h"
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#include "song.h"
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#include "uri.h"
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#include "ls.h"
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#include "tag.h"
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#include <assert.h>
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#include <string.h>
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static void
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merge_song_metadata(struct song *dest, const struct song *base,
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const struct song *add)
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{
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dest->tag = base->tag != NULL
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? (add->tag != NULL
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? tag_merge(base->tag, add->tag)
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: tag_dup(base->tag))
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: (add->tag != NULL
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? tag_dup(add->tag)
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: NULL);
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dest->mtime = base->mtime;
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dest->start_ms = add->start_ms;
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dest->end_ms = add->end_ms;
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}
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static struct song *
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apply_song_metadata(struct song *dest, const struct song *src)
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{
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struct song *tmp;
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assert(dest != NULL);
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assert(src != NULL);
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if (src->tag == NULL && src->start_ms == 0 && src->end_ms == 0)
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return dest;
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if (song_in_database(dest)) {
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char *path_fs = map_song_fs(dest);
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if (path_fs == NULL)
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return dest;
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tmp = song_file_new(path_fs, NULL);
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g_free(path_fs);
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merge_song_metadata(tmp, dest, src);
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} else {
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tmp = song_file_new(dest->uri, NULL);
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merge_song_metadata(tmp, dest, src);
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song_free(dest);
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}
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if (dest->tag != NULL && dest->tag->time > 0 &&
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src->start_ms > 0 && src->end_ms == 0 &&
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src->start_ms / 1000 < (unsigned)dest->tag->time)
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/* the range is open-ended, and the playlist plugin
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did not know the total length of the song file
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(e.g. last track on a CUE file); fix it up here */
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tmp->tag->time = dest->tag->time - src->start_ms / 1000;
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return tmp;
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}
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struct song *
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playlist_check_translate_song(struct song *song, const char *base_uri)
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{
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struct song *dest;
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if (song_in_database(song))
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/* already ok */
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return song;
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char *uri = song->uri;
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if (uri_has_scheme(uri)) {
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if (uri_supported_scheme(uri))
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/* valid remote song */
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return song;
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else {
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/* unsupported remote song */
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song_free(song);
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return NULL;
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}
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}
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if (g_path_is_absolute(uri)) {
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/* XXX fs_charset vs utf8? */
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char *prefix = base_uri != NULL
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? map_uri_fs(base_uri)
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: map_directory_fs(db_get_root());
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if (prefix == NULL || !g_str_has_prefix(uri, prefix) ||
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uri[strlen(prefix)] != '/') {
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/* local files must be relative to the music
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directory */
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g_free(prefix);
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song_free(song);
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return NULL;
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}
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uri += strlen(prefix) + 1;
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g_free(prefix);
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}
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if (base_uri != NULL)
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uri = g_build_filename(base_uri, uri, NULL);
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else
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uri = g_strdup(uri);
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if (uri_has_scheme(base_uri)) {
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dest = song_remote_new(uri);
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g_free(uri);
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} else {
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dest = db_get_song(uri);
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g_free(uri);
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if (dest == NULL) {
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/* not found in database */
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song_free(song);
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return dest;
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}
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}
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dest = apply_song_metadata(dest, song);
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song_free(song);
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return dest;
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}
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