| /* plugin_common - Routines common to several plugins |
| * Copyright (C) 2002,2003,2004,2005,2006 Josh Coalson |
| * Copyright (C) 2003 Philip Jägenstedt |
| * |
| * 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. |
| */ |
| |
| #include "replaygain.h" |
| #include "FLAC/ordinals.h" |
| #include "FLAC/metadata.h" |
| #include "share/grabbag.h" |
| |
| void FLAC_plugin__replaygain_get_from_file(const char *filename, |
| double *track_gain, FLAC__bool *track_gain_set, |
| double *album_gain, FLAC__bool *album_gain_set, |
| double *track_peak, FLAC__bool *track_peak_set, |
| double *album_peak, FLAC__bool *album_peak_set) |
| { |
| FLAC__Metadata_SimpleIterator *iterator = FLAC__metadata_simple_iterator_new(); |
| |
| *track_gain_set = *album_gain_set = *track_peak_set = *album_peak_set = false; |
| |
| if(0 != iterator) { |
| if(FLAC__metadata_simple_iterator_init(iterator, filename, /*read_only=*/true, /*preserve_file_stats=*/true)) { |
| FLAC__bool got_vorbis_comments = false; |
| do { |
| if(FLAC__metadata_simple_iterator_get_block_type(iterator) == FLAC__METADATA_TYPE_VORBIS_COMMENT) { |
| FLAC__StreamMetadata *block = FLAC__metadata_simple_iterator_get_block(iterator); |
| if(0 != block) { |
| if(grabbag__replaygain_load_from_vorbiscomment(block, /*album_mode=*/false, /*strict=*/true, track_gain, track_peak)) { |
| *track_gain_set = *track_peak_set = true; |
| } |
| if(grabbag__replaygain_load_from_vorbiscomment(block, /*album_mode=*/true, /*strict=*/true, album_gain, album_peak)) { |
| *album_gain_set = *album_peak_set = true; |
| } |
| FLAC__metadata_object_delete(block); |
| got_vorbis_comments = true; |
| } |
| } |
| } while (!got_vorbis_comments && FLAC__metadata_simple_iterator_next(iterator)); |
| } |
| FLAC__metadata_simple_iterator_delete(iterator); |
| } |
| return; |
| } |