/* * Copyright (C) 2003-2010 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 "playlist/flac_playlist_plugin.h" #include "playlist_plugin.h" #include "tag.h" #include "song.h" #include "decoder/flac_metadata.h" #include <FLAC/metadata.h> #include <glib.h> #undef G_LOG_DOMAIN #define G_LOG_DOMAIN "flac" #if defined(FLAC_API_VERSION_CURRENT) && FLAC_API_VERSION_CURRENT > 7 struct flac_playlist { struct playlist_provider base; char *uri; FLAC__StreamMetadata *cuesheet; FLAC__StreamMetadata streaminfo; unsigned next_track; }; static struct playlist_provider * flac_playlist_open_uri(const char *uri) { if (!g_path_is_absolute(uri)) /* only local files supported */ return NULL; FLAC__StreamMetadata *cuesheet; if (!FLAC__metadata_get_cuesheet(uri, &cuesheet)) return NULL; struct flac_playlist *playlist = g_new(struct flac_playlist, 1); playlist_provider_init(&playlist->base, &flac_playlist_plugin); if (!FLAC__metadata_get_streaminfo(uri, &playlist->streaminfo)) { FLAC__metadata_object_delete(playlist->cuesheet); g_free(playlist); return NULL; } playlist->uri = g_strdup(uri); playlist->cuesheet = cuesheet; playlist->next_track = 0; return &playlist->base; } static void flac_playlist_close(struct playlist_provider *_playlist) { struct flac_playlist *playlist = (struct flac_playlist *)_playlist; g_free(playlist->uri); FLAC__metadata_object_delete(playlist->cuesheet); g_free(playlist); } static struct song * flac_playlist_read(struct playlist_provider *_playlist) { struct flac_playlist *playlist = (struct flac_playlist *)_playlist; const FLAC__StreamMetadata_CueSheet *cs = &playlist->cuesheet->data.cue_sheet; /* find the next audio track */ while (playlist->next_track < cs->num_tracks && (cs->tracks[playlist->next_track].number > cs->num_tracks || cs->tracks[playlist->next_track].type != 0)) ++playlist->next_track; if (playlist->next_track >= cs->num_tracks) return NULL; FLAC__uint64 start = cs->tracks[playlist->next_track].offset; ++playlist->next_track; FLAC__uint64 end = playlist->next_track < cs->num_tracks ? cs->tracks[playlist->next_track].offset : playlist->streaminfo.data.stream_info.total_samples; struct song *song = song_file_new(playlist->uri, NULL); song->start_ms = start * 1000 / playlist->streaminfo.data.stream_info.sample_rate; song->end_ms = end * 1000 / playlist->streaminfo.data.stream_info.sample_rate; char track[16]; g_snprintf(track, sizeof(track), "%u", playlist->next_track); song->tag = flac_tag_load(playlist->uri, track); if (song->tag == NULL) song->tag = tag_new(); song->tag->time = end > start ? ((end - start - 1 + playlist->streaminfo.data.stream_info.sample_rate) / playlist->streaminfo.data.stream_info.sample_rate) : 0; tag_clear_items_by_type(song->tag, TAG_TRACK); tag_add_item(song->tag, TAG_TRACK, track); return song; } static const char *const flac_playlist_suffixes[] = { "flac", NULL }; static const char *const flac_playlist_mime_types[] = { "application/flac", "application/x-flac", "audio/flac", "audio/x-flac", NULL }; const struct playlist_plugin flac_playlist_plugin = { .name = "flac", .open_uri = flac_playlist_open_uri, .close = flac_playlist_close, .read = flac_playlist_read, .suffixes = flac_playlist_suffixes, .mime_types = flac_playlist_mime_types, }; #else /* FLAC_API_VERSION_CURRENT <= 7 */ static bool flac_playlist_init(G_GNUC_UNUSED const struct config_param *param) { /* this libFLAC version does not support embedded CUE sheets; disable this plugin */ return false; } const struct playlist_plugin flac_playlist_plugin = { .name = "flac", .init = flac_playlist_init, }; #endif